Vehicle seat

Abstract

Provided is a vehicle seat in which a skin material can be easily attached to a frame member. This vehicle seat (S) is provided with a frame member (10), and a skin material (20) that covers the frame member (10), the skin material (20) having a first engagement section (21) and a second engagement section (22) that engage with the frame member (10), the first engagement section (21) being provided at one end (20a) of the skin material (20), the second engagement section (22) being provided at the other end (20b), and the frame member (10) being provided with a plurality of first and second engagement sections (21, 22). The frame member (10) has an engaged portion (11) that engages with the first engaging portion (21) and the second engaging portion (22) of the skin material (20), and the first engaging portion (21) and the second engaging portion (22) engage with the same engaged portion (11).

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat comprising a surface engaged with a frame member. Background Art

[0002] Conventionally, a vehicle seat provided in a vehicle such as an automobile includes a skin material that covers a cushion provided on a frame member and is fixed to the frame member. A plurality of hooks are sewn to the ends of the skin material, and the skin material is fixed to the frame member by hooking the plurality of hooks to the frame member. In addition, Patent Document 1 discloses a vehicle seat in which the skin material is attached to the cushion by fitting the ends of the skin material to each other.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2016-87195 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, it is very labor-intensive and time-consuming for an operator to hook a plurality of hooks one by one on a predetermined position of a frame member or to fit the hooks together. Therefore, a method of attaching a skin to a frame more easily is desired when assembling a vehicle seat.

[0008] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle seat in which a surface material can be more easily attached to a frame member.

[0009] Technical means of solving problems

[0010] The problem is solved by the following manner, that is, the seat for a vehicle according to the present invention is a seat for a vehicle including a frame component and a skin material covering the frame component, wherein the skin material has a first engaging portion and a second engaging portion engaged with the frame component, the first engaging portion is arranged at one end portion of the skin material, the second engaging portion is arranged at the other end portion, and the other end portion is located on the opposite side of the one end portion, and the frame component has an engaged portion engaged with the first engaging portion and the second engaging portion of the skin material, and the first engaging portion and the second engaging portion are engaged with the same engaged portion.

[0011] According to the vehicle seat of the present invention constructed as described above, the first engaging portion and the second engaging portion on the opposite side of the first engaging portion are configured to engage with the same engaged portion, so the positions for installing the first engaging portion and the second engaging portion become clear. Therefore, it is possible to provide a vehicle seat that suppresses misassembly of the first engaging portion and the second engaging portion, improves the installation workability of the skin material, and enables the skin material to be more easily installed on the frame.

[0012] In the vehicle seat, the engaged portion may be a hole portion formed in a rectangular shape in the frame member, the first engaging portion may engage with one side of the hole portion, and the second engaging portion may engage with another side facing the one side.

[0013] By engaging the first engaging portion with one side of the hole formed in a rectangular shape and the second engaging portion with the other side, the same engaged portion can be easily engaged. In addition, the skin material can be supported evenly, and the installation state of the skin material is stable.

[0014] In the vehicle seat, a first extension portion may be provided in the first engaging portion, the first extension portion being formed so that its length in the seat width direction becomes smaller as it approaches the top end, and a second extension portion may be provided in the second engaging portion, the second extension portion being formed so that its length in the seat width direction becomes smaller as it approaches the top end.

[0015] By providing the first extension portion and the second extension portion, the rigidity of the surface material during installation is ensured while the elasticity of the surface material is ensured, thereby improving the installation workability of the surface material.

[0016] In the vehicle seat, a length of a rear end of the second extension portion in the seat width direction may be longer than a length of a rear end of the first extension portion in the seat width direction.

[0017] By making the length of the rear end of the second extending portion in the seat width direction longer than the length of the rear end of the first extending portion in the seat width direction, the attachment strength of the second engaging portion can be increased.

[0018] In the vehicle seat, a length of the first extension portion in a direction perpendicular to the seat width direction may be longer than a length of the second extension portion in the direction perpendicular to the seat width direction.

[0019] By making the length of the first extension portion in the direction perpendicular to the seat width direction longer than the length of the second extension portion in the direction perpendicular to the seat width direction, stretchability is improved and the first engaging portion can be easily attached to the engaged portion.

[0020] Furthermore, in the vehicle seat, a step portion may be formed on the frame member, and the engaged portion may be arranged near the step portion.

[0021] By arranging the engaged portion near the step portion, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0022] Furthermore, in the vehicle seat, a reinforcing rib may be formed near the step portion.

[0023] By forming the reinforcing ribs near the step portion, the rigidity of the step portion is improved, and accordingly, the rigidity of the engaged portion is also improved, so that the attached state of the skin material becomes stable.

[0024] Furthermore, in the vehicle seat, the frame member may include a fixing portion for fixing the vehicle seat to the vehicle, and the engaged portion may be arranged at a position overlapping the fixing portion in a direction orthogonal to a seat width direction.

[0025] By arranging the engaged portion at a position overlapping the fixing portion in a direction perpendicular to the seat width direction, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0026] Furthermore, in the vehicle seat, the frame member may include a tether anchor for fixing the child seat, and the engaged portion may be arranged at a position overlapping the tether anchor in the seat width direction.

[0027] By arranging the engaged portion at a position overlapping with the tie-eye anchor in the seat width direction, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0028] Furthermore, in the vehicle seat, a wire fastener may be provided on the skin material, the wire fastener being used to connect the side portions of the skin material after the skin material is covered on the frame member, and a terminal end portion of the wire fastener may be covered by the hidden portion.

[0029] By covering the hidden portion, the wire fastener can be shortened compared to the past. In addition, by covering the terminal end of the wire fastener with the hidden portion, the terminal end of the wire fastener can be hidden, and the design property is improved.

[0030] Effects of the Invention

[0031] According to the vehicle seat of the present invention, since the first engaging portion and the second engaging portion on the opposite side of the first engaging portion are configured to engage with the same engaged portion, the positions for installing the first engaging portion and the second engaging portion become clear. Therefore, a vehicle seat can be provided which can suppress misassembly of the first engaging portion and the second engaging portion, improve the installation workability of the skin material, and enable the skin material to be more easily installed on the frame.

[0032] In addition, the first engaging portion is engaged with one side of the hole portion formed into a rectangular shape and the second engaging portion is engaged with the other side, so that the same engaged portion can be easily engaged. In addition, the skin material can be supported evenly, and the installation state of the skin material is stable.

[0033] By providing the first extension portion and the second extension portion, the rigidity of the surface material during installation is ensured while the elasticity of the surface material is ensured, thereby improving the installation workability of the surface material.

[0034] By making the length of the rear end of the second extending portion in the seat width direction longer than the length of the rear end of the first extending portion in the seat width direction, the attachment strength of the second engaging portion can be increased.

[0035] By making the length of the first extension portion in the direction perpendicular to the seat width direction longer than the length of the second extension portion in the direction perpendicular to the seat width direction, stretchability is improved and the first engaging portion can be easily attached to the engaged portion.

[0036] By arranging the engaged portion near the step portion, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0037] By forming the reinforcing ribs near the step portion, the rigidity of the step portion is improved, and accordingly, the rigidity of the engaged portion is also improved, so that the attached state of the skin material becomes stable.

[0038] By arranging the engaged portion at a position overlapping the fixing portion in a direction perpendicular to the seat width direction, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0039] By arranging the engaged portion at a position overlapping with the tie-eye anchor in the seat width direction, the rigidity of the engaged portion is improved, and the attached state of the skin material is stabilized.

[0040] By covering the wire fastener with the hidden portion, the wire fastener can be shortened compared to the past. In addition, by covering the terminal end of the wire fastener with the hidden portion, the terminal end of the wire fastener can be hidden, and the design property is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] [ Figure 1] is a stereoscopic view of the rear seat of the vehicle seat including the first embodiment as viewed from the oblique rear direction.

[0042] [ Figure 2 ] is a rear view of the seat back of the vehicle seat as viewed from the rear, and is a diagram showing the installation state of the surface material.

[0043] [ Figure 3 ]yes Figure 2 AA cross-sectional view of the backrest, and is a diagram showing a state in which the end portion of the skin material is engaged with the backrest frame.

[0044] [ Figure 4 ] is a rear view showing the back side of the backrest cushion.

[0045] [ Figure 5 ] is a rear view showing the back side of the backrest frame.

[0046] [ Figure 6 ] is a side view showing the left side of the seat back.

[0047] [ Figure 7 ] is an enlarged representation Figure 6 , and is a diagram showing a terminal portion of the wire fastener.

[0048] [ Figure 8 ] is along Figure 7 Cross-sectional view of the CC line.

[0049] [ Fig. 9 ] is a diagram showing a backrest frame of the second embodiment and is a rear view showing the back side of the backrest frame.

[0050] [ Fig.10 ] is an explanatory diagram for explaining the process of installing the surface material on the backrest frame of the second embodiment, and is a diagram showing the state before the first engaging part and the second engaging part are engaged with the engaged part.

[0051] [ Fig.11 ] is a diagram showing a state in which the second engaging portion is engaged with the first hole portion.

[0052] [ Fig.12 ] is a diagram showing a state in which the first engaging portion is engaged with the second hole portion and the hanging portion is lowered.

[0053] [ Fig.13 ] is a side view of the vehicle seat device of the first example of the second embodiment, and is a diagram showing a state in which the rear seat is in use and the front seat is in a normal state.

[0054] [ Fig.14 ] is a diagram showing a state in which the rear seat is in an upright position and the front seat is in a folded position.

[0055] [ Fig.15 ] is a diagram showing a state in which the rear seat is in a stowed state and the front seat is in a folded state.

[0056] [ Fig.16 ] is a side view of the vehicle seat device of the second embodiment, and is a diagram showing a state in which the rear seat is in use and the front seat is in a normal state.

[0057] [ Fig.17 ] is a diagram showing a state in which the rear seat is in an upright position and the front seat is in a folded position.

[0058] [ Fig.18 ] is a diagram showing a state in which the rear seat is in a stowed state and the front seat is in a folded state.

[0059] [ Fig.19 ] is a side view of the vehicle seat device of the third embodiment, and is a diagram showing a state in which the rear seat is in use and the front seat is in a normal state.

[0060] [ Fig. 20 ] is a diagram showing a state in which the rear seat is in an upright position and the front seat is in a folded position.

[0061] [ Fig.21 ] is a diagram showing a state in which the rear seat is in a stowed state and the front seat is in a folded state.

[0062] [ Fig. 22 ] is a side view of the vehicle seat device of the fourth embodiment, and is a diagram showing a state in which the rear seat is moved from a use state to a storage state.

[0063] [ Fig.23 ] is a side view of the vehicle seat device of the fifth embodiment, and is a diagram showing a state in which the rear seat moves from a use state to a storage state.

[0064] [ Fig.24 ] is a side view of the vehicle seat device of the sixth embodiment, and is a diagram showing a state in which the rear seat is moved from a use state to a storage state.

[0065] [ Fig.25 ] is a side view of the vehicle seat device of the seventh embodiment, and is a diagram showing a state in which the rear seat moves from a use state to a storage state.

[0066] [ Fig.26 ] is a side view of the vehicle seat device of the third embodiment, and is a diagram showing a state in which the rear seat is in use and the front seat is in a normal state.

[0067] [ Fig. 27 ] is a diagram showing a state in which the rear seat is in the first folding state and the front seat is in the folded state.

[0068] [ Fig.28 ] is a diagram showing a state in which the rear seat is in an upright position and the front seat is in a folded position.

[0069] [ Fig.29 ] is a diagram showing a state in which the rear seat is in a stowed state and the front seat is in a folded state.

[0070] [ Fig.30 ] is a diagram showing a state in which the rear seat is in a flipped-up state and the front seat is in a normal state.

[0071] [ Fig.31 ] is a diagram showing a state in which the rear seat is in the second folding state and the front seat is in the normal state.

[0072] [ Fig.32A ] is a diagram showing a state in which the first locking member is in a locked position and the second locking member is in a locked position.

[0073] [ Fig.32B ] is a diagram showing a state in which the first locking member is in a lock release position and the second locking member is in a lock position.

[0074] [ Fig.32C ] is a diagram showing a state in which the first locking member is in the lock release position and the second locking member is in the lock release position.

[0075] [ Fig.33 ] is a three-dimensional view of a vehicle seat according to a fourth embodiment.

[0076] [ Fig.34 ] is a three-dimensional diagram showing the frame of a seat for a vehicle.

[0077] [ Fig.35 ] is along Fig.33 It is a cross-sectional view taken along line AA of FIG. 1 , and is a view showing the position of the heater provided on the pad.

[0078] [ Fig.36 ] is a diagram showing the heater and the seat cushion pad viewed from the front.

[0079] [ Fig.37 ] is a top view showing the seat cushion pad with a heater installed.

[0080] [ Fig.38 ] is a bottom view showing the seat cushion pad with a heater installed.

[0081] [ Fig.39 ] is a front view showing a seat cushion pad with a heater installed.

[0082] [ Fig.40A ] is a front view showing another example of a seat cushion pad having a convex portion formed therein.

[0083] [ Fig.40B ] is a front view showing another example of a seat cushion pad having a convex portion formed therein.

[0084] [ Fig.40C ] is a front view showing a seat cushion pad having a protrusion formed therein.

[0085] [ Fig.40D ] is a front view showing another example of a seat cushion pad having a convex portion formed therein.

[0086] [ Fig.40E ] is a front view showing another example of a seat cushion pad having a convex portion formed therein.

[0087] [ Fig.40F ] is a top view of a seat cushion pad having a groove for ventilation and a recessed portion for a seat belt reminder.

[0088] [ Fig.41A ] is a diagram showing another example of a heater having a snap-fit ​​portion.

[0089] [ Fig.41B ] is a diagram showing another example of a heater having a snap-fit ​​portion.

[0090] [ Fig.42 ] is a front view of the backrest pad with a heater installed as viewed from the front.

[0091] [ Fig.43 ] is a rear view of the backrest pad with a heater installed as viewed from the rear.

[0092] [ Fig.44 ] is a flow chart showing a method for manufacturing a seat for a vehicle.

[0093] [ Fig.45 ] is a top view showing a seat cushion pad equipped with a conventional heater. DETAILED DESCRIPTION

[0094] <<First embodiment>>

[0095] <First embodiment>

[0096] Hereinafter, the structure of the vehicle seat of the first embodiment (the present embodiment) of the present invention will be described with reference to the accompanying drawings. However, the embodiment described below is an example for making the present invention easier to understand and does not limit the present invention. That is, the present invention can of course be changed and improved without departing from its main purpose, and the present invention includes its equivalents.

[0097] In addition, as an example of a vehicle seat, a vehicle seat mounted on a vehicle is listed below, and its structural example is described. However, the present invention is not limited to a vehicle seat mounted on a ground-moving vehicle with wheels such as a car or a train, and may also be a seat mounted on an airplane or a ship that moves on other than the ground.

[0098] In the following description, the so-called "seat front-to-back direction" refers to the front-to-back direction of the vehicle seat, and is a direction that coincides with the traveling direction of the vehicle when the vehicle is traveling. In addition, the so-called "seat width direction" refers to the width direction of the vehicle seat, and is a direction that coincides with the left-right direction as viewed from the occupant sitting on the vehicle seat. In addition, the so-called "seat up-down direction" refers to the up-down direction of the vehicle seat, and is a direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0099] In the following description, when “vehicle” is added such as “inside the vehicle” and “outside the vehicle”, it indicates a direction relative to the vehicle.

[0100] In addition, the shapes, positions, postures, and the like of the various parts of the vehicle seat described below are described assuming that the vehicle seat is in a seated state described later, except for cases where special instructions are given.

[0101] <Basic structure of vehicle seat S>

[0102] Reference Figure 1 A basic structure of a vehicle seat (hereinafter referred to as a vehicle seat S) according to the present embodiment will be described. Figure 1 It is a perspective view of a rear seat RS including a connected vehicle seat S as viewed from the rear obliquely. Figure 1 In FIG. 1 , for the convenience of illustration, a portion of the vehicle seat S is shown with the surface material 20 removed.

[0103] The vehicle seat S is a seat placed on the vehicle body floor for the occupants of the vehicle to sit on. Figure 1 As shown, the vehicle seat S is used as a rear seat RS equivalent to a rear seat of a vehicle. However, the present invention is not limited thereto, and the vehicle seat S may also be a front seat of a vehicle, or may be used as a middle seat of the second row or a rear seat RS of the third row in a vehicle having three rows of seats in the front-rear direction.

[0104] like Figure 1As shown, the main components of the vehicle seat S are: a seat back 1, which is a seat back portion that supports the back of the seated person; a seat cushion 2, which is a seat portion that supports the buttocks of the seated person; and a headrest 3, which is arranged on the upper part of the seat back 1 and supports the head of the seated person.

[0105] The seat back 1 and the seat cushion 2 are connected with the reclining device interposed therebetween, and the seat back 1 can be rotated in the front-rear direction by releasing the locking device 34 using the reclining knob 5 provided at the shoulder of the seat back 1 .

[0106] Figure 1 The rear seat RS shown is constructed by connecting the vehicle seats S arranged on the left and right. Although the left and right vehicle seats S have different lengths in the seat width direction, other structures are roughly the same. Therefore, in the following description, the vehicle seat S arranged on the left side of the rear seat RS is described.

[0107] A frame member is provided in the vehicle seat S. The frame member mainly includes a backrest frame 10 (see Figure 3 and Figure 5 ) and a cushion frame (not shown). The backrest frame 10 constitutes the frame of the seat back 1, and the cushion frame constitutes the frame of the seat cushion 2. The backrest frame 10 is provided with Figure 4 The back cushion 30 shown is further configured by covering the back cushion 30 with the skin material 20. In addition, a seat cushion is placed on the seat cushion frame and is covered with the skin material 20.

[0108] <Back cushion 30>

[0109] The backrest pad 30 is, for example, a urethane base material formed by foaming using a urethane foaming agent. Figure 5 As shown, the back pad 30 is formed in a rectangular shape to cover the back frame 10. In addition, an upper side wrapping portion 31 is formed on the upper end side of the back pad 30 to wrap and hold the upper end of the back frame 10, and a lower side wrapping portion 32 is provided on the lower end side to wrap and hold the lower end of the back frame 10.

[0110] Furthermore, a recess 33 for fitting the reclining knob 5 is formed at the upper end of the back pad 30 .

[0111] Conventionally, the back cushion provided on the seat back is formed so as to wrap around the entire circumference of the back frame, not only the upper end side and the lower end side of the back frame, but also the left and right side portions. However, when the entire circumference of the back frame 10 is wrapped, although the back cushion is not easy to fall off the back frame, there is a problem that the installation workability is reduced.

[0112] In addition, when the reclining knob is provided on the shoulder, a through hole for inserting the reclining knob is formed on the upper part of the backrest pad in the past. However, when the backrest pad is installed, the backrest pad is hooked on the reclining knob, so there is a problem of reduced installation workability.

[0113] In the back pad 30 used in the present embodiment, the portion wrapping the left and right side portions is eliminated, and the upper end and the lower end of the back frame 10 are wrapped and held by the upper wrapping portion 31 and the lower wrapping portion 32 .

[0114] The back frame 10 is held by the upper wrapping portion 31 and the lower wrapping portion 32, and the movement of the back frame 10 in the front-rear direction is suppressed. On the other hand, since no wrapping portion is provided on the left and right side portions of the back pad 30, the work of wrapping the side portions of the back frame 10 is reduced, and the back pad 30 can be easily installed on the back frame 10, and the installation workability of the back pad 30 is improved. In addition, since the wrapping portion is reduced, the material cost can be reduced.

[0115] In addition, if Figure 3 As shown, the wrapping of the upper wrapping portion 31 is formed to be larger than the wrapping of the lower wrapping portion 32. Since the upper side of the seat back 1 is a portion that the occupant often contacts, by making the wrapping of the upper wrapping portion 31 larger than the wrapping of the lower wrapping portion 32, the upper side portion of the back cushion 30 is prevented from coming off the back frame 10 due to contact by the occupant.

[0116] Furthermore, as described above, in the related art, when a reclining knob is provided on the shoulder portion of a seat back, a through hole is formed on the upper end portion of the back pad.

[0117] In the back pad 30 of the present embodiment, the recessed portion 33 is formed at the position where the reclining knob 5 is provided, so that the reclining knob 5 does not get caught on the back pad 30 during assembly. In other words, the recessed portion 33 is formed by cutting out the portion that was conventionally formed as a hole so that the rear end of the hole is not connected, so that the back pad 30 does not get caught on the reclining knob 5. Since the getting caught is suppressed, the workability of assembling the back pad 30 is improved.

[0118] <Surface material 20>

[0119] The seat back 1 is provided with a skin material 20 to cover a back pad 30 provided on the back frame 10. The skin material 20 is composed of cloth, film, leather, sheet material or the like.

[0120] The skin material 20 is formed into a bag shape by sewing a plurality of skin sheets 25a and 25b formed into a substantially rectangular shape. Wire fasteners 28 are provided on both sides of the skin material 20 , and the skin material 20 is formed into a bag shape to cover the back pad 30 by closing the wire fasteners 28 .

[0121] like Figure 2 and Figure 3 As shown, the skin material 20 has a first engaging portion 21 and a second engaging portion 22 that engage with the backrest frame 10. Figure 3 It can be seen that the skin material 20 is installed to cover the entire front and back sides of the assembly of the back frame 10 and the back pad 30 , and the end of the skin material 20 is fixed by engaging with the hole 11 at the lower end of the back side of the back frame 10 .

[0122] The first engaging portion 21 is provided at one end portion (first end portion 20a) of the skin material 20 covering the back surface of the back frame 10. The second engaging portion 22 is provided at the other end portion (second end portion 20b) of the skin material 20 opposite to the one end portion.

[0123] In more detail, the first engaging portion 21 is provided at the lower end (first end 20a) of the skin material 20 extending downward from the upper end of the seat back 1. The second engaging portion 22 is provided at the skin material 20 disposed at the lower end of the seat back 1 (second end 20b).

[0124] In other words, in the skin material 20 arranged to extend in the circumferential direction of the assembly of the back pad 30 and the back frame 10 , the first engaging portion 21 is provided at one end portion located at the upper side, and the second engaging portion 22 is provided at the other end portion located at the lower side.

[0125] A J hook formed in a hook shape is provided at the top end 21a of the first engaging portion 21, and can be engaged with a hole portion 11 formed as an engaged portion in the backrest frame 10 described later. In addition, a J hook is also provided at the top end 22a of the second engaging portion 22, and can be engaged with the hole portion 11. Figure 2 As shown, the first engaging portion 21 and the second engaging portion 22 are configured to engage with the same hole portion 11 .

[0126] like Figure 5 As shown, the hole 11 is formed in a rectangular shape and is configured such that the first engaging portion 21 engages with the upper side 11a (equivalent to one side of the present invention) of the hole 11, and the second engaging portion 22 engages with the lower side 11b (equivalent to the other side of the present invention) facing the upper side 11a.

[0127] Since the first engaging portion 21 and the second engaging portion 22 are configured to engage with the same engaged portion formed on the back frame 10, the position of installing the first engaging portion 21 and the second engaging portion 22 becomes clear to the operator. Therefore, it is possible to provide a vehicle seat S that can suppress misassembly of the first engaging portion 21 and the second engaging portion 22, improve the installation workability of the skin material 20, and more easily install the skin material 20 on the back frame 10.

[0128] In addition, the top ends 21a and 22a of the first engaging portion 21 and the second engaging portion 22 include J hooks, but this is an example and may include protrusions or through holes. In this case, the engaged portion may also include metal wires or protrusions according to the top end shapes of the first engaging portion 21 and the second engaging portion 22.

[0129] In addition, in this embodiment, one hole 11 is formed for the first engaging portion 21 and the second engaging portion 22 to engage with, but this is an example, and the number of holes 11 can be one, or three or more. The first engaging portion 21 and the second engaging portion 22 arranged opposite to each other are configured to engage with the same hole 11.

[0130] The shapes of the first engaging portion 21 and the second engaging portion 22 are described. The first engaging portion 21 is provided with a first extending portion 23, and the length of the first extending portion 23 in the seat width direction is formed to decrease toward the top end 21a provided with the J hook. In other words, the first extending portion 23 is formed in a substantially trapezoidal shape.

[0131] The second engaging portion 22 is provided with a second extending portion 24, which is formed so that the length in the seat width direction becomes smaller toward the tip 22a provided with the J hook. In other words, the second extending portion 24 is formed in a substantially trapezoidal shape.

[0132] Furthermore, the second extension portion 24 is formed such that a length W2 of a rear end 24 b thereof in the seat width direction is longer than a length W1 of a rear end 23 b of the first extension portion 23 in the seat width direction.

[0133] By making the length W2 of the rear end 24 b of the second extending portion 24 in the seat width direction longer, the mounting strength of the second engaging portion 22 can be increased.

[0134] Furthermore, the first extension portion 23 is configured such that a length L1 thereof in a direction perpendicular to the seat width direction is longer than a length L2 of the second extension portion 24 in the direction perpendicular to the seat width direction.

[0135] In other words, the length L1 of the first extending portion 23 in the up-down direction is greater than the length L2 of the second extending portion in the up-down direction.

[0136] By making the length L1 of the first extension portion 23 in the direction perpendicular to the seat width direction longer, the stretchability of the first extension portion 23 is improved, and the first engagement portion 21 is easily attached to the hole 11 .

[0137] In addition, if Figure 2 As shown, a hanging portion 26 hanging downward is provided at the first end portion 20a of the skin material 20. After the first engaging portion 21 and the second engaging portion 22 are engaged with the hole portion 11, the hanging portion 26 is Figure 3 As shown in the figure, the first engaging portion 21 and the second engaging portion 22 are concealed so that they cannot be seen from the outside of the vehicle seat S.

[0138] <Backrest frame 10>

[0139] The seat back 1 is provided with a back frame 10 formed of a metal plate material formed in a substantially rectangular shape.

[0140] Although not shown, a groove or a recess is preferably formed in the back frame 10 to reinforce the back frame 10. A step 12 is formed at the lower end of the back frame 10. A reinforcing rib 13 is formed in the step 12 to reinforce the step 12.

[0141] like Figure 5 As shown in FIG. 1 , a tether anchor 15 for fixing a child seat (not shown) is provided near the center of the backrest frame 10. In addition, a slit 15a (see FIG. 1 ) for passing a tether belt extending from the child seat is formed at a position corresponding to the tether anchor 15 of the surface material 20. Figure 1 ).

[0142] In addition, seat fixing portions 14 for fixing the vehicle seat S to the vehicle are provided at the lower ends of both side portions of the back frame 10. The vehicle seat S can be fixed to the vehicle by screwing the seat fixing portions 14 to a connecting portion (not shown) extending from the vehicle. The seat fixing portions 14 correspond to the fixing portions of the present invention.

[0143] <Engaged portion>

[0144] A hole portion 11 that engages with the engaging portions (the first engaging portion 21 and the second engaging portion 22) of the skin material 20 is formed near the step portion 12 of the back frame 10. The hole portion 11 corresponds to the engaged portion of the present invention.

[0145] like Figure 5 As shown in FIG. 1 , the hole 11 is formed in a rectangular shape extending in the seat width direction. As described above, the first engaging portion 21 of the skin material 20 engages with the upper side 11a of the hole 11, and the second engaging portion 22 of the skin material 20 engages with the lower side 11b facing the upper side 11a. The length of the upper side 11a and the length of the lower side 11b are formed to be the same as or slightly larger than the width of the J hook provided at the top of the first engaging portion 21 and the second engaging portion 22. By forming the hole 11 in this way, the installation positions of the first engaging portion 21 and the second engaging portion 22 become clear, and the end of the skin material 20 is suppressed from being displaced in the lateral direction.

[0146] like Figure 5As shown in FIG. 1 , the hole 11 as the engaged portion is arranged near the step 12. In more detail, the hole 11 is arranged above the step 12 and close to the step 12. In addition, a reinforcing rib 13 may be formed near the step 12.

[0147] By arranging the hole 11 near the step 12, the rigidity of the hole 11 is improved. In addition, by forming the reinforcing rib 13 near the step 12, the rigidity of the step 12 is improved, and the rigidity of the hole 11 is improved accordingly. By improving the rigidity of the hole 11, the mounting state of the skin material 20 is stabilized, so that the first engaging portion 21 and the second engaging portion 22 are not easily disengaged from the hole 11.

[0148] Furthermore, the hole portion 11 may be arranged at a position overlapping with a seat fixing portion 14 that fixes the vehicle seat S to the vehicle body in a direction perpendicular to the seat width direction. That is, the hole portion 11 is arranged in parallel with the seat fixing portion 14 in the seat width direction (left-right direction). In other words, when the vehicle seat S is viewed from the side, the hole portion 11 may be arranged so that a portion overlaps with the seat fixing portion 14.

[0149] In addition, the hole portion 11 may be arranged at a position overlapping with the tie anchor 15 provided on the seat back 1 in the seat width direction. That is, the hole portion 11 is arranged in parallel with the tie anchor 15 in the seat vertical direction. In other words, when the vehicle seat S is viewed from above, a part of the hole portion 11 may be arranged to overlap with the tie anchor 15.

[0150] By arranging the hole portions 11 in this manner, the rigidity of the hole portions 11 is improved, and the attached state of the skin material 20 becomes stable.

[0151] <Wire fastener 28>

[0152] like Figure 1 and Figure 6 As shown in FIG. 1 , the seat back 1 is provided with wire fasteners 28 on both sides. The wire fasteners 28 are members for connecting the side portions of the skin material after the skin material 20 is covered on the back frame 10. The skin material 20 is attached to the back pad 30 provided on the back frame 10 in a state where the wire fasteners 28 are opened. After the operator engages the first engaging portion 21 and the second engaging portion 22 with the hole portion 11, the wire fasteners 28 provided on the both sides are closed, thereby completing the installation of the skin material 20.

[0153] Conventionally, the wire fastener provided on the surface material is provided near the corner of the rear side of the seat back, for example Figure 6However, there is a problem that when a locking device or a striker is provided at the upper end of the seat back, the length of the wire fastener is shortened to avoid them. If the wire fastener is shortened, the opening range of the surface material is narrowed, making it difficult to attach to the back pad, and the installability is reduced.

[0154] Therefore, in this embodiment, if Figure 6 As shown, the wire fastener 28 is arranged at the center in the front-rear direction at the side of the seat back 1 to avoid the locking device 34. Therefore, the starting point of the wire fastener 28 can be set at a higher position, and the wire fastener 28 can be made longer. As a result, the opening width of the skin material 20 becomes larger, so the overlapping workability of the skin material 20 on the back pad 30 is improved.

[0155] Furthermore, the wire fastener 28 is also provided on the opposite side portion (right side portion) of the seat back 1 , but the lock device 34 is not provided on the right shoulder of the seat back 1 , so it is not necessary to avoid the lock device 34 .

[0156] By arranging the left wire fastener 28 substantially in the center and setting the starting point at a higher position as in this embodiment, the lengths of the wire fasteners 28 attached to the left and right sides of the seat back 1 can be made uniform. Since the wire fasteners 28 used are common, incorrect assembly can be suppressed and manufacturing costs can be reduced.

[0157] Next, use Figure 7 and Figure 8 The terminal end portion 28 a of the wire fastener 28 will be described.

[0158] In the past, the wire fastener was inserted between the backrest pad and the backrest frame to hide its terminal end. However, in the above structure, the length of the fastener needs to be increased.

[0159] In the vehicle seat S of this embodiment, as shown in FIG. Figure 8 As shown, a recess 36 is formed in the back pad 30, and the terminal end 28a and the slider 28b of the wire fastener 28 are accommodated in the recess 36. The terminal end 28a and the slider 28b of the wire fastener 28 are hidden by covering the terminal end 28a and the slider 28b with a tape 29 (hiding portion).

[0160] By adopting such a structure, the long portion required in the past to hide the terminal end of the wire fastener can be eliminated, and the length of the fastener can be shortened. In addition, the terminal end 28a is not visible from the outside, so the design is improved.

[0161] <Second embodiment>

[0162] Next, use Figures 9 to 12A vehicle seat SA according to a second embodiment will be described. Fig. 9 1 is a diagram showing a back frame 10A of the vehicle seat SA and is a rear view showing the back side of the back frame 10A. Figures 10 to 12 1 is an explanatory diagram for explaining the process of installing the skin material on the back frame 10A of the second embodiment. Fig.10 This is a diagram showing a state before the first engagement portion 21A and the second engagement portion 22A are engaged with the first hole portion 16 and the second hole portion 17 . Fig.11 2 is a diagram showing a state where the second engaging portion 22A is engaged with the first hole portion 16. Fig.12 This is a diagram showing a state in which the first engaging portion 21A is engaged with the second hole portion 17 and the hanging portion 26A is lowered.

[0163] The vehicle seat SA of the second embodiment is different from the vehicle seat S of the first embodiment in the position of the hole formed in the back frame 10A, or the position of the first engaging portion and the second engaging portion engaged in the hole. The other structures are the same, so the same reference numerals are used and detailed description is omitted.

[0164] like Fig. 9 As shown in FIG. 1 , a first hole portion 16 and a second hole portion 17 are formed as engaged portions in the back frame 10A. Two first holes 16 are formed at a position overlapping with the seat fixing portion 14 in the seat width direction and arranged at a predetermined interval. Two second holes 17 are formed at the lower end of the back frame 10A and arranged in the seat width direction at a predetermined interval. The first hole portion 16 and the second hole portion 17 are hole portions formed in a rectangular shape in the back frame 10A.

[0165] The skin material 20A covering the back frame 10A will be described. Fig.10 As shown, a first engaging portion 21A engaging with the second hole 17 is provided at a first end 20Aa of the skin material 20A. A second engaging portion 22A engaging with the first hole 16 is provided at a second end 20Ab of the skin material 20A.

[0166] To describe in more detail, a second extension portion 24A formed in a trapezoidal shape is provided at the second end portion 20Ab of the skin material 20A, and two second engagement portions 22A are provided at a predetermined interval at a tip 24Aa of the second extension portion 24A.

[0167] Two openings 27 are formed in the second extension portion 24A in a row in the seat width direction. The openings 27 are arranged in a manner such as Fig.10 The second extension portion 24A is rotated as shown by the arrow D shown in FIG. Fig.11As shown in FIG. 1 , the second engaging portion 22A is positioned to overlap with the second hole portion 17 when engaging with the first hole portion 16. By forming the opening 27 at the position overlapping with the second hole portion 17, the Fig.11 The first engaging portion 21A is moved as shown by the arrow E shown in FIG. Fig.12 As shown in the figure, the first engaging portion 21A is inserted through the opening 27 so as to engage with the second hole 17. With this structure, the skin material 20A can be installed on the back frame 10A. After the first engaging portion 21A is installed, the hanging portion 26A is lowered, and the portion for fixing the skin material 20A is hidden.

[0168] In the second embodiment, the first engaging portion 21A and the second engaging portion 22A include J hooks, but this is an example, and they may include protrusions or through holes. In this case, the engaged portion may include a metal wire or a protrusion according to the first engaging portion and the second engaging portion.

[0169] In addition, in this embodiment, two first holes 16 and two second holes are formed for the second engaging portion and the first engaging portion to engage with each other, but this is an example, and the number of the first hole 16 and the second hole can be one, or three or more.

[0170] The vehicle seat of the present embodiment has been described above using the drawings. In the embodiment, the backrest frame 10, the backrest frame 10A and the skin material 20, the skin material 20A used in the seat back 1 are described as an example, but this is an example, and the present invention can also be applied to the seat cushion 2. For example, the first engaging portion and the second engaging portion can be provided on the skin material covering the cushion pad and the cushion frame of the seat cushion 2, and a hole can be formed in the cushion frame and the skin material can be installed. The positions for installing the first engaging portion and the second engaging portion become clear, and the installation workability when assembling the seat cushion is improved.

[0171] <<Second embodiment>>

[0172] Below, use Figures 13 to 25 A second embodiment of the present invention will be described.

[0173] The second embodiment relates to a vehicle seat device and a vehicle, and in particular, to a vehicle seat device including a first vehicle seat and a second vehicle seat arranged further forward or rearward than the first vehicle seat in the front-rear direction of the vehicle, and a vehicle including the vehicle seat device.

[0174] <Background Art>

[0175] In recent years, as a vehicle seat, a dive-down seat is known in which a seat back and a seat cushion are folded so as to overlap each other and the seat back and the seat cushion are moved forward and downward to be stored.

[0176] For example, in the vehicle seat disclosed in Japanese Patent Laid-Open No. 2021-115871, a dive-type seat is disclosed in which a seat back and a seat cushion are folded in an overlapping manner and moved forward and downward to be stored. In detail, the vehicle seat is mounted on the upper step of the vehicle body floor, and the seat cushion is rotated upright and folded in a manner that the seat back and the seat cushion overlap. Moreover, the vehicle seat is stored in the lower step of the vehicle body floor by moving the seat back and the seat cushion forward and downward.

[0177] By storing the vehicle seat in the front lower part in this way, the space in the vehicle cabin can be expanded.

[0178] <Disclosure of the Invention>

[0179] <Problems to be solved by the invention>

[0180] However, in Japanese Patent Laid-Open No. 2021-115871, when the vehicle seat is in the stowed state where it is moved downward, the vehicle seat is not supported, so there is a concern that the vehicle seat may move further downward from the stowed position and fall out of the vehicle body floor.

[0181] In addition, when the vehicle seat to be stored is directly supported by the vehicle body floor, it is necessary to increase the supporting strength of the vehicle body floor. In addition, there is also a concern that the vehicle seat cannot be supported at an appropriate position.

[0182] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle seat device and a vehicle capable of supporting a stored vehicle seat with a simple structure.

[0183] <Technical means to solve the problem>

[0184] The above-mentioned problem is solved by the following means, that is, according to the vehicle seat device and the vehicle including the vehicle seat device of the present invention, there is a vehicle seat device including a first vehicle seat and a second vehicle seat arranged further forward or rearward than the first vehicle seat in the front-rear direction of the vehicle, wherein the first vehicle seat includes a seat back and a seat cushion and is switchable between a use state and a storage state, wherein the use state is a state in which an occupant can sit, and the storage state is a state in which the seat back and the seat cushion are folded in an overlapping manner from the use state and are simultaneously moved downward toward the second vehicle seat side and are stored, and the second vehicle seat has a support member that supports the first vehicle seat, and the support member is switchable between a storage position and a support position, wherein the storage position is a position in which the second vehicle seat is stored, and the support position is a position in which the first vehicle seat is deployed toward the first vehicle seat side from the storage position and supports the first vehicle seat, and when the first vehicle seat is in the storage state, the support member supports the first vehicle seat by switching from the storage position to the support position to restrict the movement of the first vehicle seat.

[0185] With the above configuration, it is possible to realize a vehicle seat device and a vehicle that can support a stored vehicle seat with a simple structure.

[0186] In detail, the support member of the second vehicle seat supports the first vehicle seat, thereby preventing the second vehicle seat from moving further downward from the stowed state. In particular, since the second vehicle seat is provided with the support member, there is no need to add a member for increasing the support strength to the vehicle body floor, and the first vehicle seat can be supported at an appropriate position using a simple structure.

[0187] At this time, the second vehicle seat may include a seat cushion, the support member may be installed on the seat cushion of the second vehicle seat, and when in the storage position, the seat cushion is stored in the second vehicle seat, and is unfolded from the storage position toward the first vehicle seat side and switched to the support position.

[0188] According to the above structure, the support member is provided on the seat cushion of the second vehicle seat, so the support member can be easily deployed. Therefore, when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported by a simple structure.

[0189] At this time, the second vehicle seat may include: a seat body having a seat back and a seat cushion; and a support leg component, which is installed on the vehicle and supports the seat body, and the support member is installed on the support leg component of the second vehicle seat, and is accommodated in the support leg component when in the storage position, and is deployed toward the first vehicle seat side from the storage position and switched to the support position.

[0190] According to the above structure, the support member is provided on the leg member of the second vehicle seat, so the support member can be easily deployed. Therefore, when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported by a simple structure.

[0191] At this time, the second vehicle seat may include a seat body having a seat back and a seat cushion, the supporting member may be a rope-shaped member, and one end of the supporting member is fixed to the seat body of the second vehicle seat, and a locking portion is provided at the other end of the supporting member, the locking portion is used to lock with a locked portion provided on the first vehicle seat in a loadable and detachable manner, and when the first vehicle seat is in the storage state, the supporting member supports the first vehicle seat from above by locking the locking portion of the supporting member with the locked portion of the first vehicle seat.

[0192] According to the above structure, the supporting member is a rope-shaped member. Therefore, when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported with a simpler structure.

[0193] In this case, the support member may be a plate-shaped member having a support surface, and when the first vehicle seat is in the stored state, the support surface may support the first vehicle seat from below.

[0194] According to the structure, the support member is a plate-shaped member, so when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported by a simpler structure. In addition, when the first vehicle seat is in use, the support member can be used as a platform or a footrest.

[0195] In this case, a recess or a hole for storing the storage object may be formed on the support surface.

[0196] With this structure, when the first vehicle seat is in use, the support member can be used as a tray for storing small items, cups, and other storage objects.

[0197] In this case, a hook for hooking luggage may be formed at a top end of the support member.

[0198] With this structure, when the first vehicle seat is in use, the support member can be used as a hook for hooking and holding luggage such as a bag.

[0199] At this time, the second vehicle seat may include a seat back and a seat cushion, which is arranged in the front-rear direction of the vehicle further forward than the first vehicle seat, and can be switched between a normal state and a folded state, the normal state being a state in which the occupant can sit down, and the folded state being a state in which the seat back is folded in an overlapping manner with the seat cushion from the normal state, and the rear end portion of the seat cushion is flipped up and simultaneously rotated forward and upright.

[0200] According to the above structure, the rear seat can be stored forward in the state where the front seat is upright and folded, so the space of the vehicle interior can be further expanded.

[0201] At this time, the first vehicle seat can be arranged at a rearward position than the second vehicle seat in the front-rear direction of the vehicle, and can be switched between the use state and the storage state, wherein the storage state is a state in which the seat back is folded in a manner overlapping with the seat cushion from the use state, and the rear end portion of the seat cushion is flipped up and rotated toward the front side at the same time, so that the seat cushion is in a state overlapping the seat back.

[0202] According to the above structure, the rear seat can be folded over and stored in a state where the seat back is arranged below the seat cushion, so that the space of the vehicle interior can be further expanded.

[0203] At this time, the first vehicle seat can be arranged at a rearward position than the second vehicle seat in the front-rear direction of the vehicle, and can be switched between the use state and the storage state, wherein the storage state is a state in which the seat back and the seat cushion are folded in an overlapping manner from the use state and are stored while moving downward toward the front in a folded posture.

[0204] According to the above structure, the seat back of the rear seat is tilted forward and folded, and is moved in parallel in the folded posture, so that the rear seat can be stored with a simple structure.

[0205] <Effects of the Invention>

[0206] According to the present invention, it is possible to realize a vehicle seat device and a vehicle capable of supporting a stored vehicle seat with a simple structure.

[0207] Furthermore, according to the present invention, when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported with a simple structure.

[0208] Furthermore, according to the present invention, when the first vehicle seat is moved to the storage state, the first vehicle seat can be supported with a simpler structure.

[0209] Furthermore, according to the present invention, when the first vehicle seat is in use, the support member can be used as a platform or a footrest.

[0210] Furthermore, according to the present invention, when the first vehicle seat is in use, the support member can be used as a tray for storing small items, cups, and the like.

[0211] Furthermore, according to the present invention, when the first vehicle seat is in use, the support member can be used as a hook for hooking and holding articles such as bags.

[0212] In addition, according to the present invention, the space in the vehicle cabin can be further expanded.

[0213] Furthermore, according to the present invention, the rear seat can be stored with a simple structure.

[0214] <Specific implementation>

[0215] <First embodiment>

[0216] Reference Figure 13 to Figure 15 A vehicle V100 according to a first example of the second embodiment will be described.

[0217] The vehicle V100 of the first embodiment includes a vehicle seat device S101. Fig.13 As shown, the vehicle seat device S101 includes, for example, a plurality of vehicle seats arranged side by side in the front-rear direction.

[0218] Furthermore, the vehicle seat may be, for example, a seat installed in a ship or an airplane.

[0219] In the following description, the so-called "front-rear direction" refers to the front-rear direction of the vehicle seat, and is a direction that coincides with the traveling direction of the vehicle V100 when traveling. In addition, the so-called "seat width direction" refers to the width direction of the vehicle seat, and is a direction that coincides with the left-right direction viewed from the occupant (seat occupant) sitting on the vehicle seat. In addition, the so-called "up-down direction" refers to the up-down direction of the vehicle seat, and is a direction that coincides with the vertical direction when the vehicle V100 travels on a horizontal plane.

[0220] <<Structure of vehicle seat device>>

[0221] like Fig.13As shown, the vehicle seat device S101 includes: a rear seat 101 (first vehicle seat), which is arranged at the rear side in the front-rear direction of the vehicle V100; and a front seat 102 (second vehicle seat), which is arranged further forward than the rear seat 101. In addition, the number of vehicle seats is not limited to this, and for example, a structure including front seats, middle seats and rear seats as in three-row seats may be provided.

[0222] like Fig.13 As shown, a step is formed on the vehicle body floor F100 of the vehicle V100. An upper step portion F101 is formed on the rear side of the vehicle V100, and a lower step portion F102 is formed on the front side of the vehicle V100. The rear seat 101 is arranged on the upper step portion F101 of the vehicle body floor F100, and the front seat 102 is arranged on the lower step portion F102 of the vehicle body floor F100.

[0223] Furthermore, the vehicle body floor panel F100 on which the vehicle seat is arranged may be a flat floor panel without forming a step.

[0224] <<Rear seat (first vehicle seat)>>

[0225] The rear seat 101 includes: a seat body having a seat back 110, a seat cushion 111 and a headrest 112; a base member 113 for mounting the seat body on the vehicle body floor F100; a rotation locking member 114 for connecting the seat back 110 to the seat cushion 111 in a rotatable manner; and an operating unit 115 for releasing the lock of the rotation locking member 114.

[0226] Furthermore, a pair of base members 113 are provided in the seat width direction, and are disposed on both end sides of the seat back 110 and the seat cushion 111 , respectively.

[0227] Backseat 101 can Fig.13 The usage status shown, Fig.14 The erected state shown and Fig.15 Switch between the storage states shown.

[0228] like Fig.13 As shown, the use state is a state in which an occupant can sit down, and is a state in which the seat back 110 is in an upright position.

[0229] like Fig.14 As shown, the standing state is a state in which the seat back 110 is tilted forward and folded to overlap the seat cushion 111 from the use state, and the rear end 111b of the seat cushion 111 is rotated upward around the front end 111a of the seat cushion 111 to stand up.

[0230] like Fig.15As shown, the stowed state is a state in which the seat back 110 and the seat cushion 111 are folded in an overlapping manner from the upright state, and the rear end portion 111b of the seat cushion 111 is further rotated forward with the front end portion 111a of the seat cushion 111 as the center, and moves downward toward the front and is stowed to the lower step portion F102 side of the vehicle body floor F100.

[0231] In other words, the stowed state is a state in which the seat back 110 and the seat cushion 111 are folded in an overlapping manner from the use state and are simultaneously moved downward toward the front seat 102 side to be stowed.

[0232] The seat back 110 is a seat back that supports the back of a seated person from behind, and is formed by placing a cushion material P100 on a back frame 110 a as a framework and covering the cushion material T100 .

[0233] The seat cushion 111 is a seat portion that supports a seated person from below, and is configured by placing a cushion material P100 on a cushion frame 111 c as a framework and covering the cushion material T100 .

[0234] The headrest 112 supports the head of a seated person from behind, and is formed by placing a cushion material on a headrest pillar (not shown) as a core material and covering the cushion material with a skin material.

[0235] like Fig.13 As shown, the base member 113 is fixed to the upper step portion F101 of the vehicle body floor F100, and supports the seat cushion frame 111c of the seat cushion 111 in a rotatable manner. Specifically, the base member 113 is fixed to the upper side portion of the front side portion of the upper step portion F101. A rotation shaft 113a is provided at the upper end portion of the base member 113.

[0236] The base member 113 is connected to the cushion frame 111c via the rotation axis 113a. The occupant can switch the seat body between the use state and the storage state by turning the seat body around the rotation axis 113a of the base member 113.

[0237] Furthermore, the base member 113 has a locking mechanism (not shown) for maintaining the rear seat 101 in each of the use state, the standing state, and the storage state.

[0238] The base member 113 is provided with a biasing mechanism 113 b that assists the seat body in switching between the use state and the storage state.

[0239] When the seat body is rotated from the use state to the standing state, the urging mechanism 113b assists the rotation of the seat body against the weight of the seat body. When the seat body is rotated from the standing state to the storage state, the urging mechanism 113b applies resistance to the seat body to slowly rotate the seat body to the storage state.

[0240] When the seat body is rotated from the stowed state to the use state, the urging mechanism 113b assists the rotation against the weight of the seat body. When the seat body is rotated from the erected state to the use state, the urging mechanism 113b applies resistance to the seat body to slowly rotate the seat body to the use state.

[0241] The rotation locking member 114 rotatably connects the lower end 110b of the seat back 110 to the rear end 111b of the seat cushion 111. The seat back 110 tilts forward relative to the seat cushion 111 and overlaps with the tilting shaft 114a of the rotation locking member 114. The rotation locking member 114 includes a locking mechanism 114b therein.

[0242] The rotation locking member 114 switches the seat back 110 between an upright position in which the seat back 110 stands with respect to the seat cushion 111 and a forward tilted position in which the seat back 110 overlaps the seat cushion 111. The seat back 110 is locked in the upright position or the forward tilted position by restricting its rotational movement by the locking mechanism 114b. In addition, the seat back 110 may be locked in a position other than the upright position or the forward tilted position.

[0243] The operation portion 115 is an operation lever for releasing the lock of the rotation lock member 114 , and is provided at the upper end portion 110 c of the seat back 110 .

[0244] When the passenger operates the operating portion 115, the locking mechanism 114b is transferred from the locked state to the unlocked state. When the locking mechanism 114b is transferred to the unlocked state, the seat back 110 can be rotated in the direction of tilting forward. By the rotation of the seat back 110, the degree of reclining of the seat back 110 (the angle between the seat back 110 and the seat cushion 111) changes.

[0245] Furthermore, in the first embodiment, the seat back 110 is rotated in a forward tilting manner, but may be rotated in a rearward tilting manner.

[0246] In the first embodiment, the rear seat 101 is switched from the use state to the storage state by the seat back 110 being tilted forward and folded, but the rear seat 101 may be switched from the use state to the storage state by the seat cushion 111 being flipped up rearward.

[0247] <<Front seat (second vehicle seat)>>

[0248] The front seat 102 includes: a seat body having a seat back 120, a seat cushion 121 and a headrest 122; a support leg member 123 for mounting the seat body on the vehicle body floor F100; a rotation locking member 124 for connecting the seat back 120 to the seat cushion 121 in a rotatable manner; an operating portion 125 for unlocking the rotation locking member 124; and a support member 130 for supporting the rear seat 101.

[0249] The front seat 102 can Fig.13 The normal state shown is the same as Fig.14 Switch between the folded states shown.

[0250] like Fig.13 As shown, the normal state is a state in which an occupant can sit down, and is a state in which the seat back 120 is in an upright position.

[0251] like Fig.14 , Fig.15 As shown, the folded state is a state in which the seat back 120 is tilted forward from the normal state and folded to overlap the seat cushion 121, and the rear end portion 121b of the seat cushion 121 is rotated upward around the front end portion 121a of the seat cushion 121 to stand up.

[0252] The seat back 120 is a seat back that supports the back of a seated person from behind, and is formed by placing a cushion material P100 on a back frame 120 a as a framework and covering the cushion material T100 .

[0253] The seat cushion 121 is a seat portion that supports a seated person from below, and is configured by placing a cushion material P100 on a cushion frame 121 c as a framework and covering the cushion material T100 .

[0254] The headrest 122 supports the head of the seated person from behind, and is formed by placing a cushion material on a headrest pillar (not shown) as a core material and covering the cushion material with a skin material.

[0255] like Fig.13 As shown, the foot member 123 is fixed to the lower step portion F102 of the vehicle body floor F100, and supports the cushion frame 121c of the seat cushion 121 in a rotatable manner. The foot member 123 is fixed to the lower step portion F102 by providing a pair of foot portions 123a in the seat width direction. A support shaft 123b is provided at the upper end portion of the front side of the foot member 123. A holding portion 123c is provided at the upper end portion of the rear side of the foot member 123, and the holding portion 123c holds the held portion 124c provided at the lower end portion of the rotation locking member 124.

[0256] The leg member 123 is connected to the cushion frame 121c via the support shaft 123b. Therefore, the leg member 123 can flip up the seat body around the support shaft 123b, thereby switching the seat body between the normal state and the folded state.

[0257] Furthermore, the leg member 123 is provided with a biasing mechanism 123 d that assists the seat body in switching between the normal state and the folded state.

[0258] When the seat body is rotated from the normal state to the folded state, the urging mechanism 123d resists the weight of the seat body to assist the rotation of the seat body.

[0259] Furthermore, when the seat body is rotated from the folded state to the normal state, the urging mechanism 123d applies resistance to the seat body so that the seat body is slowly rotated to the normal state.

[0260] The rotation locking member 124 connects the lower end 120b of the seat back 120 to the rear end 121b of the seat cushion 121 in a rotatable manner. The seat back 120 is tilted forward relative to the seat cushion 121 and overlaps with the tilting axis 124a of the rotation locking member 124. The rotation locking member 124 includes a locking mechanism 124b inside. In addition, a held portion 124c held by the holding portion 123c is formed at the lower end portion of the rotation locking member 124.

[0261] The rotation locking member 124 switches the seat back 120 between an upright position in which the seat back 120 stands with respect to the seat cushion 121 and a forward tilted position in which the seat back 120 overlaps the seat cushion 121. The seat back 120 is locked in the upright position or the forward tilted position by restricting its rotational movement by the locking mechanism 124b. In addition, the seat back 120 may be locked in a position other than the upright position or the forward tilted position.

[0262] The operation portion 125 is an operation lever for releasing the lock of the rotation lock member 124 , and is provided at the upper end portion 120 c of the seat back 120 .

[0263] When the passenger operates the operating portion 125, the locking mechanism 124b is transferred from the locked state to the unlocked state. When the locking mechanism 124b is transferred to the unlocked state, the seat back 120 can be rotated in the direction of tilting forward. By the rotation of the seat back 120, the degree of reclining of the seat back 120 (the angle between the seat back 120 and the seat cushion 121) changes.

[0264] Furthermore, in the first embodiment, the seat back 120 is rotated in a forward tilting manner, but may be rotated in a rearward tilting manner.

[0265] In the first embodiment, the front seat 102 is switched from the normal state to the folded state by the seat back 120 being tilted forward and folded, but the front seat 102 may be switched from the normal state to the folded state by the seat cushion 121 being flipped backward.

[0266] like Figure 13 to Figure 15 As shown, the support member 130 can be switched between a storage position in which the support member 130 is stored in the front seat 102 and a support position in which the support member 130 is deployed rearward from the storage position toward the rear seat 101 and supports the rear seat 101 .

[0267] Fig.13 The stowed position shown is a position where the support member 130 is stowed under the seat cushion 121 when the front seat 102 is in the normal state. Fig.15 The support position shown is a position for supporting the rear seat 101 from below when the front seat 102 is in the folded state and the rear seat 101 is in the stowed state.

[0268] The support member 130 is mounted on the seat cushion 121 of the front seat 102, and when the rear seat 101 is in the stowed state, the rear seat 101 is supported by switching from the storage position to the support position to restrict the movement of the rear seat 101. In other words, when the rear seat 101 is in the stowed state, the rear seat 101 is supported from below by the support member 130. Therefore, the rear seat 101 can be suppressed from moving further downward from the stowed state.

[0269] like Fig.13 As shown, the support member 130 includes: a plate-shaped member 131 having a support surface 311a; a rotation shaft 132 for rotatably mounting the plate-shaped member 131 on the cushion frame 121c; a storage portion 133 for storing storage items; and a hook portion 134 for hooking luggage.

[0270] The plate-shaped member 131 is, for example, a plate having a support surface 131a, and is rotatably mounted to the cushion frame 121c via a rotation shaft 132. The support member 130 is deployed by an occupant when the rear seat 101 is in the stowed state, and supports the rear seat 101 from below via the support surface 131a.

[0271] The plate-shaped member 131 switches from the storage position to the support position by rotating downwardly and rearwardly via the rotation shaft 132. When the plate-shaped member 131 rotates downwardly and switches to the support position, the rotation angle of the plate-shaped member 131 at the support position is restricted.

[0272] In addition, the plate-shaped member 131 is rotated to the rear downward by the rotating shaft 132, but can also be rotated to the rear upward to switch to the supporting position. In this case, a locking mechanism for limiting the rotation angle at the supporting position can be provided.

[0273] The storage portion 133 is formed on the support surface 131a and is used to store small items, cups, and other storage objects. For example, a recessed portion 133a for storing small items and a hole portion 133b for storing a cup are formed in the plate-shaped member 131.

[0274] The hook 134 is formed at the tip of the plate-like member 131 and is used to hook a bag or other luggage. The hook 134 is formed in the plate-like member 131 with, for example, a recess 133a for storing small items and a hole 133b for storing a cup.

[0275] When the rear seat 101 is in use, the support member 130 is deployed rearward, and the passenger can use the support member 130 as a platform. In addition, the plate-shaped member 131 is formed with a recess 133a, a hole 133b and a hook 134, so that the passenger's small items, cups, luggage and other personal belongings can be stored.

[0276] Furthermore, when the rear seat 101 is in use, the support member 130 may also be used as a footrest for an occupant sitting on the rear seat 101 .

[0277] Thus, by providing the support member 130 for supporting the rear seat 101 on the front seat 102, the rear seat 101 can be prevented from moving further downward from the stowed state. In particular, since the support member 130 is provided on the front seat 102, the rear seat 101 can be supported by a simple structure without changing the design of the vehicle body floor F100.

[0278] In addition, in the present embodiment, the rear seat 101 is stored at the lower front side, and the rear seat 101 is supported by the support member 130 of the front seat 102. However, the present invention is not limited thereto, and a support member may be provided at the rear seat 101, and the front seat 102 may be stored at the lower rear side, and the front seat 102 may be supported by the support member of the rear seat 101.

[0279] In the present embodiment, the seat back 110 of the rear seat 101 is tilted forward and folded to overlap the seat cushion 111 . However, the present invention is not limited thereto, and the seat cushion 111 may be flipped back and folded to overlap the seat back 110 .

[0280] Furthermore, in the present embodiment, the front seat 102 is configured to be switchable between the normal state and the folded state. However, the present invention is not limited thereto, and the front seat 102 may be configured to be rotated forward from the folded state similarly to the rear seat 101, thereby simultaneously moving downward toward the front and being stored on the lower step F102 side of the vehicle body floor F100.

[0281] <Second embodiment>

[0282] Next, based on Figure 16 to Figure 18 A vehicle seat device S102 of a vehicle V100 as a second example of the present embodiment will be described.

[0283] Note that descriptions of contents overlapping with those of the vehicle seat device S101 are omitted.

[0284] The vehicle seat device S102 of the second embodiment is different from the vehicle seat device S101 mainly in the structure of the support member 140 .

[0285] like Figure 16 to Figure 18 As shown, the support member 140 can be switched between a storage position in which the support member 140 is stored in the front seat 102 and a support position in which the support member 140 is deployed forward from the storage position toward the rear seat 101 side and supports the rear seat 101 .

[0286] Fig.16 The stored position shown is a position where the support member 140 is stored under the seat cushion 121 when the front seat 102 is in the normal state, and is attached to the leg member 123 so as to extend along the front-rear direction in which the leg member 123 extends. Fig.18 The support position shown is a position for supporting the rear seat 101 from below when the front seat 102 is in the folded state and the rear seat 101 is in the stowed state.

[0287] The support member 140 is mounted on the leg member 123 of the front seat 102, and when the rear seat 101 is in the storage state, the rear seat 101 is supported by switching from the storage position to the support position to restrict the movement of the rear seat 101. In other words, when the rear seat 101 is in the storage state, the rear seat 101 is supported from below by the support member 140. Therefore, the rear seat 101 can be suppressed from moving further downward from the storage state.

[0288] like Fig.16 As shown, the support member 140 includes a pipe member 141 having a support portion 141 a and a pipe rotation shaft 142 for rotatably attaching the pipe member 141 to the leg member 123 .

[0289] In addition, the support member 140 is not limited to the rod-shaped pipe member 141, and may be a plate-shaped member (for example, a footrest).

[0290] The pipe member 141 is a rod-shaped member that is bent into a II shape when viewed from the front and has a support portion 141a. The pipe member 141 is rotatably mounted to the pair of legs 123a via a pipe rotation shaft 142. The support member 140 is deployed by an occupant when the rear seat 101 is in the stowed state, and supports the rear seat 101 from below via the support portion 141a.

[0291] The pipe rotating shaft 142 switches the pipe member 141 from the storage position to the support position so as to rotate the pipe member 141 forward and upward. The pipe rotating shaft 142 has a locking mechanism (not shown) for limiting the rotation angle at the support position.

[0292] Since the support member 140 is thus attached to the leg member 123 of the front seat 102, it is possible to save space when the front seat 102 is stored. In addition, since the support member 140 is formed in a rod shape, it is possible to further save space when the front seat 102 is stored.

[0293] <Third embodiment>

[0294] Next, based on Figure 19 to Figure 21 A vehicle seat device S103 of the vehicle V100 according to the third embodiment will be described.

[0295] Note that descriptions of the contents overlapping with those of the vehicle seat device S101 and the vehicle seat device S102 will be omitted.

[0296] The vehicle seat device S103 of the third embodiment is different from the vehicle seat devices S101 and S102 mainly in the structure of the support member 150 .

[0297] like Figure 19 to Figure 21 As shown, the support member 150 can be switched between a storage position in which the support member 150 is stored in the front seat 102 and a support position in which the support member 150 is deployed rearward from the storage position toward the rear seat 101 and supports the rear seat 101 .

[0298] Fig.19 The stowed position shown is a position where the support member 150 is stowed under the seat cushion 121 when the front seat 102 is in the normal state. Fig.21 The support position shown is a position for supporting the rear seat 101 from below when the front seat 102 is in the folded state and the rear seat 101 is in the stowed state.

[0299] The support member 150 is mounted on the seat cushion 121 of the front seat 102, and when the rear seat 101 is in the stowed state, the rear seat 101 is supported by switching from the storage position to the support position to restrict the movement of the rear seat 101. In other words, when the rear seat 101 is in the stowed state, the rear seat 101 is supported from above by the support member 150. Therefore, the rear seat 101 can be suppressed from moving further downward from the stowed state.

[0300] like Fig.19 As shown, the support member 150 has a rope-shaped member 151 and an engaging portion 152 for engaging with the rear seat 101 .

[0301] The rope-like member 151 is, for example, a sling or a metal wire. When the front seat 102 is in a normal state, one end 151a of the rope-like member 151 is fixed to the rear lower surface of the seat cushion 121. The other end 151b of the rope-like member 151 is provided with an engaging portion 152.

[0302] The engaging portion 152 is provided at the other end portion 151b of the rope-shaped member 151, and is detachably mounted on the lower surface of the front side of the seat cushion 121. Fig.19 As shown, when the front seat 102 is in the normal state, the engaging portion 152 is detachably mounted on the front lower surface of the seat cushion 121 .

[0303] like Fig.21 As shown, when the front seat 102 is in the folded state and the rear seat 101 is in the stowed state, one end 151a of the rope-shaped member 151 is located above the engaged portion 110d of the rear seat 101 and is fixed to the rear surface (lower surface of the seat cushion 121) of the front seat 102. In addition, when the front seat 102 is in the folded state and the rear seat 101 is in the stowed state, the engaging portion 152 provided at the other end 151b of the rope-shaped member 151 is detachably mounted to the rear surface of the front seat 102.

[0304] The engaging portion 152 of the support member 150 is removed from the seat cushion 121 and deployed rearward, and engages with an engaged portion 110 d provided at a lower end portion (front end portion in the stowed state) of the seat back 110 of the rear seat 101 .

[0305] Therefore, the support member 150 is deployed by the passenger when the rear seat 101 is in the stowed state, and supports the rear seat 101 from above via the engagement portion 152 .

[0306] Since the support member 150 is attached to the seat cushion 121 of the front seat 102 in this way, it is possible to save space when storing. In addition, the support member 150 is formed in a rope shape, so the rear seat 101 can be supported with a simple structure. In addition, the support member 140 is not limited to a rope shape, and can also be a rod shape.

[0307] <Fourth embodiment>

[0308] Next, based on Fig. 22 A vehicle seat device S104 of the vehicle V100 according to the fourth embodiment will be described.

[0309] Note that descriptions of contents overlapping with those of the vehicle seat devices S101 to S103 will be omitted.

[0310] The vehicle seat device S104 of the fourth embodiment is different from the vehicle seat devices S101 to S103 mainly in the structures of the front seat 102A and the support member 160 .

[0311] The front seat 102A includes a seat body having a seat back 120 , a seat cushion 121 and a headrest 122 , a foot member 123A for mounting the seat body to the vehicle body floor F100 , and a support member 160 for supporting the rear seat 101 .

[0312] The front seat 102A is fixed to the vehicle body floor F100 via the leg member 123A, but the present invention is not limited to this, and the front seat 102A can be switched between this state and the folded state.

[0313] The support member 160 can be stored in the front seat 102A in the storage position ( Fig. 22 The rear seat 101 is switched between a storage position (shown by a dotted line) and a support position in which the rear seat 101 is deployed rearwardly from the storage position and supports the rear seat 101.

[0314] The stowed position is a position where the support member 160 is stowed inside the seat cushion 121. The support position is a position where the front seat 102A slides rearward relative to the seat cushion 121 to support the rear seat 101 from below when the rear seat 101 is in the stowed state.

[0315] The support member 160 is, for example, a plate-shaped platform member, and is attached to the seat cushion 121 of the front seat 102A. The support member 160 has a locking mechanism (not shown) for restricting the sliding position at the supporting position.

[0316] When the rear seat 101 is in the stowed state, the support member 160 is deployed by the passenger and switched from the stowed position to the support position to support the rear seat 101, thereby restricting the movement of the rear seat 101. In other words, when the rear seat 101 is in the stowed state, the rear seat 101 is supported from below by the support member 160. Therefore, the rear seat 101 is prevented from further moving downward from the stowed state.

[0317] Since the support member 160 is attached to the seat cushion 121 of the front seat 102A in this way, it is possible to save space when the seat cushion 121 is stored. In addition, the support member 160 is not limited to a plate shape, but may also be a rod shape.

[0318] <Fifth embodiment>

[0319] Next, based on Fig.23 A vehicle seat device S105 of the vehicle V100 according to the fifth embodiment will be described.

[0320] Note that descriptions of contents overlapping with those of the vehicle seat devices S101 to S104 will be omitted.

[0321] The vehicle seat device S105 of the fifth embodiment is different from the vehicle seat devices S101 to S104 mainly in the structure of the support member 170 .

[0322] The support member 170 can be stored in the front seat 102A in the storage position ( Fig.23 The rear seat 101 is switched between the storage position and the support position in which the rear seat 101 is deployed downward from the storage position and supports the rear seat 101.

[0323] The storage position is a position where the support member 170 is attached to the leg member 123 so as to extend in the vertical direction along the rear surface of the seat body in the normal state of the front seat 102. The support position is a position where the support member 170 is rotated rearward and downward from the storage position to support the rear seat 101 from below when the rear seat 101 is in the storage state.

[0324] like Fig.23 As shown, the support member 170 includes a pipe member 171 and a pipe rotating shaft 172 that rotatably attaches the pipe member 171 to the leg member 123A.

[0325] In addition, the support member 170 is not limited to the rod-shaped pipe member 171, and may be a plate-shaped member (eg, a footrest).

[0326] The pipe member 171 is a rod-shaped member that is bent into a II shape when viewed from the front and has a support portion 171a. The pipe member 171 is rotatably mounted to the pair of legs 123Aa via a pipe rotation shaft 172. The support member 170 is deployed rearward by an occupant when the rear seat 101 is in the stowed state, and supports the rear seat 101 from below via the support portion 171a.

[0327] The pipe rotating shaft 172 switches the pipe member 171 from the storage position to the support position so as to rotate it downwardly and rearwardly. The pipe rotating shaft 172 has a locking mechanism (not shown) for limiting the rotation angle at the support position.

[0328] Since the support member 170 is attached to the leg member 123A of the front seat 102A in this way, it is possible to save space when the front seat 102A is stored. In addition, since the support member 170 is formed in a rod shape, it is possible to further save space when the front seat 102A is stored.

[0329] <Sixth embodiment>

[0330] Next, based on Fig.24 A vehicle seat device S106 of the vehicle V100 according to the sixth embodiment will be described.

[0331] Note that descriptions of contents overlapping with those of the vehicle seat devices S101 to S105 will be omitted.

[0332] The vehicle seat device S106 of the sixth embodiment is different from the vehicle seat devices S101 to S105 mainly in the structure of the support member 180 .

[0333] The support member 180 can be stored in the front seat 102A in the storage position ( Fig.24 The rear seat 101 is switched between a storage position (shown by a dotted line) and a support position in which the rear seat 101 is deployed rearwardly from the storage position and supports the rear seat 101.

[0334] The storage position is a position where the support member 180 is stored in the rear surface of the seat back 120. The support position is a position that supports the rear seat 101 from above when the rear seat 101 is in the storage state.

[0335] The support member 180 is mounted on the seat cushion 121 of the front seat 102A, and when the rear seat 101 is in the stowed state, the rear seat 101 is supported by switching from the storage position to the support position to restrict the movement of the rear seat 101. In other words, when the rear seat 101 is in the stowed state, the rear seat 101 is supported from above by the support member 180. Therefore, the rear seat 101 can be suppressed from moving further downward from the stowed state.

[0336] like Fig.24As shown, the support member 180 includes a rope-shaped member 181 and an engaging portion 182 for engaging with the rear seat 101 .

[0337] The rope-shaped member 181 is, for example, a sling or a metal wire. One end 181a of the rope-shaped member 181 is fixed to the rear surface of the seat back 120. The other end 181b of the rope-shaped member 181 is provided with an engaging portion 182.

[0338] The engaging portion 182 is provided at the other end portion 181b of the rope-shaped member 181 and is detachably mounted on the rear surface of the seat cushion 121. Fig.24 As shown by the dotted line in the figure, the engaging portion 182 is attached to the rear surface of the seat cushion 121. When the support member 180 is deployed rearward, the engaging portion 182 engages with the engaged portion 110d provided at the lower end portion of the seat back 110 of the rear seat 101.

[0339] Therefore, the support member 180 is deployed by the occupant when the rear seat 101 is in the stowed state, and supports the rear seat 101 from above via the engagement portion 182 .

[0340] Since the support member 180 is attached to the seat back 120 of the front seat 102A in this way, it is possible to save space when storing. In addition, the support member 180 is formed in a rope shape, so the rear seat 101 can be supported with a simple structure. In addition, the support member 140 is not limited to a rope shape, and can also be a rod shape.

[0341] <Seventh embodiment>

[0342] Next, based on Fig.25 A vehicle seat device S107 of the vehicle V100 according to the seventh embodiment will be described.

[0343] Note that descriptions of contents overlapping with those of the vehicle seat devices S101 to S106 will be omitted.

[0344] The vehicle seat device S107 of the seventh embodiment is different from the vehicle seat devices S101 to S106 mainly in the structure of the rear seat 101A.

[0345] The rear seat 101A includes: a seat body having a seat back 110, a seat cushion 111 and a headrest 112; a rotating member 190 for mounting the seat body to the vehicle body floor F100; a rotating locking member 114 for connecting the seat back 110 to the seat cushion 111 in a rotatable manner; and an operating unit 115 for unlocking the rotating locking member 114.

[0346] Backseat 101 can Fig.25The display switches between the usage state represented by the dotted line and the storage state represented by the solid line.

[0347] The use state is a state in which an occupant can sit down, and the seat back 110 is in an upright position. The stowed state is a state in which the seat back 110 is folded in a manner overlapping the seat cushion 111 from the use state, and the seat back 110 and the seat cushion 111 move forward in parallel, thereby moving forward and downward at the same time and stowed to the lower step F102 side of the vehicle body floor F100.

[0348] like Fig.25 As shown, the rotating member 190 includes an upper rotating portion 191 fixed to an upper step portion F101 of the vehicle body floor F100, and a lower rotating portion 192 fixed to a lower step portion F102 of the vehicle body floor F100. The upper rotating portion 191 supports the seat back 110 in a rotatable manner. The lower rotating portion 192 supports the seat cushion 111 in a rotatable manner.

[0349] Furthermore, a pair of rotating members 190 are provided in the seat width direction and are disposed at both end sides of the seat back 110 and the seat cushion 111 , respectively.

[0350] The upper rotating portion 191 includes an upper fixing portion 191a fixed to the upper portion of the front portion of the upper step portion F101, an upper arm portion 191b rotatably supported on the upper fixing portion 191a, and an upper connecting portion 191c rotatably connecting the upper arm portion 191b and the seat back 110.

[0351] The lower rotating portion 192 includes a lower fixing portion 192a fixed to the lower step portion F102, a lower arm portion 192b rotatably supported by the lower fixing portion 192a, and a lower connecting portion 192c rotatably connecting the lower arm portion 192b and the seat cushion 111.

[0352] The upper arm portion 191b rotates around an axis provided at the upper fixing portion 191a, and the lower arm portion 192b rotates around an axis provided at the lower fixing portion 192a.

[0353] The seat back 110 is rotatably mounted to the upper arm portion 191b via the upper connection portion 191c, and the seat cushion 111 is rotatably mounted to the lower arm portion 192b via the lower connection portion 192c. Therefore, the rear seat 101A is folded in a manner that the seat back 110 and the seat cushion 111 overlap each other from the use state, and moves forward and downward while maintaining the folded posture.

[0354] In this way, the rotating member 190 can switch the seat body between the use state and the storage state in a parallel movement manner.

[0355] Furthermore, the rotating member 190 may be provided with a biasing mechanism that assists the seat body in switching between the use state and the storage state.

[0356] like Fig.25 As shown, the support member 130 is mounted on the seat cushion 121 of the front seat 102, and when the rear seat 101A is in the stowed state, the rear seat 101A is supported by switching from the storage position to the support position to restrict the movement of the rear seat 101A. In other words, when the rear seat 101A is in the stowed state, the rear seat 101A is supported from below by the support member 130. Therefore, the rear seat 101A can be suppressed from further moving downward from the stowed state.

[0357] In this way, the seat back 110 of the rear seat 101A is tilted forward and folded, and the seat back 110 and the seat cushion 111 are moved in an overlapping state, so that the rear seat 101A can be stored with a simple structure. In addition, the seat cushion 111 (cushion frame 111c) of the rear seat 101A is supported from below by the support member 130, so that the support strength can be improved.

[0358] <<Third Embodiment>>

[0359] Below, use Figures 26 to 32C A third embodiment of the present invention will be described.

[0360] A third embodiment relates to a vehicle seat and a vehicle, and more particularly to a vehicle seat including a seat back and a seat cushion and a vehicle.

[0361] <Background Art>

[0362] In recent years, as a vehicle seat, there is known a seat that can be switched between a use state and a folded state, wherein the use state is a state in which an occupant can sit down, and the folded state is a state in which the rear end of the seat cushion is flipped forward from the use state and the seat cushion is upright, and the seat back is tilted forward and folded at the rear position of the upright seat cushion.

[0363] For example, in the vehicle seat described in Japanese Patent Laid-Open No. 2013-226860, the seat back and the seat cushion are rotatably mounted on the bottom cover (base member). Furthermore, the vehicle seat can be switched from a use state to a folded state in which the rear end of the seat cushion is flipped forward and the seat cushion is erected, and the seat back is tilted forward and folded behind the erected seat cushion.

[0364] In such a vehicle seat, the space in the vehicle cabin can be expanded by raising the seat cushion and tilting the seat back forward.

[0365] <Disclosure of the Invention>

[0366] <Problems to be solved by the invention>

[0367] However, in Japanese Patent Laid-Open No. 2013-226860, when the seat back is tilted forward and folded above the seat cushion from the use state, the seat back interferes with the rear end of the seat cushion. Therefore, the seat back cannot be folded so that the rear surface of the seat back is substantially horizontal, thereby failing to fully expand the space of the vehicle cabin.

[0368] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle seat and a vehicle that can further expand the space of a vehicle cabin.

[0369] <Technical means to solve the problem>

[0370] The above-mentioned problem is solved by the following means, that is, according to the vehicle seat and the vehicle including the vehicle seat of the present invention, there is a vehicle seat including a seat back and a seat cushion, and the vehicle seat can be switched between a use state, a first folded state and a second folded state, the use state being a state in which an occupant can sit, the first folded state being a state in which the seat back is folded toward the seat cushion from the use state, the second folded state being a state in which the rear end of the seat cushion is flipped forward and the seat cushion is upright from the use state, and the seat back is folded toward a vehicle body floor at a rear position of the upright seat cushion, the vehicle seat having: a first rotation axis for rotating the seat back relative to the vehicle body floor when switching from the use state to the first folded state; and a second rotation axis for rotating the seat back relative to the vehicle body floor when switching from the use state to the second folded state, the first rotation axis and the second rotation axis being arranged at different positions in a side view of the vehicle seat.

[0371] With the above-described structure, it is possible to realize a vehicle seat and a vehicle capable of further expanding the space in the vehicle cabin.

[0372] To describe in detail, by having two different rotation axes for the vehicle seat, the seat back can be switched between a state in which the seat back is tilted forward and folded onto the seat cushion from a use state, and a state in which the rear end of the seat cushion is flipped forward and the seat cushion is erected and the seat back is tilted forward and folded from a use state.

[0373] Therefore, the vehicle seats can be arranged in various configurations, and the vehicle interior space can be fully expanded.

[0374] At this time, when the vehicle seat is in the use state, the first rotation axis may be arranged above the second rotation axis, and the first rotation axis and the second rotation axis may be separated in the vertical direction by a distance greater than the thickness of the seat cushion.

[0375] According to the above structure, the vehicle seat has two vertically separated and different rotation axes, and thus the seat back can be tilted forward with a simple structure.

[0376] At this time, the vehicle seat may include a base component installed in a manner that is movably mounted relative to the vehicle body floor, the seat back is rotatably mounted on the base component, and the seat cushion is rotatably mounted on the base component, and the vehicle seat can be switched between the use state, the first folding state, and the stowed state in which the base component, the seat back and the seat cushion are simultaneously moved downward toward the front side from the first folding state and are stowed.

[0377] According to the above structure, the vehicle seat can be moved forward and downward to be stored in a state where the seat back is tilted forward and folded to overlap the seat cushion, so that the space of the vehicle cabin can be further expanded.

[0378] At this time, the vehicle seat may include a connecting rod member that enables the seat back to rotate relative to the base member, the connecting rod member having an elongated connecting rod portion, the first rotating shaft being mounted on one end of the connecting rod portion, and the second rotating shaft being mounted on the other end of the connecting rod portion, the seat back being rotatably mounted on the connecting rod member around the first rotating shaft, and the connecting rod member being rotatably mounted on the rear end of the base member around the second rotating shaft.

[0379] According to the above structure, the seat back is rotated to tilt forward via the link member, so that the seat back can be tilted forward with a simple structure.

[0380] At this time, the vehicle seat can be switched between the use state, the first folded state, and the upright state in which the rear end of the base member is flipped up from the first folded state so that the base member rotates forward together with the seat back and the seat cushion and stands upright.

[0381] According to the above structure, the vehicle seat can be stored in an upright state with the seat back tilted forward and folded to overlap the seat cushion, so that the vehicle seat can be further expanded in space inside the vehicle.

[0382] At this time, the vehicle seat can be switched between the use state, the first folded state, and the stowed state in which the base member, the seat back and the seat cushion are simultaneously moved downward toward the front side and stowed when the seat back is folded onto the seat cushion from the first folded state.

[0383] With this structure, the seat back can be tilted forward and folded to overlap the seat cushion, and the vehicle seat can be moved forward and downward while being kept in the folded position to be stored, thereby further expanding the vehicle interior space.

[0384] At this time, the vehicle seat may include: a first locking member for locking the first rotating shaft; a second locking member for locking the second rotating shaft; and an operating member for releasing the locked state of the first locking member and the locked state of the second locking member, the operating member including an operating lever operated by an occupant, and a cable connecting the operating lever to the first locking member and the second locking member, the first locking member being transferred from the locked position to the locked released position by the operating lever being pulled from the normal position to the first released position by the cable, the first locking member being transferred from the locked position to the locked released position, the cable being further pulled from the first released position to the second released position by the operating lever, and the second locking member being transferred from the locked position to the locked released position.

[0385] According to the above structure, when the operating lever is operated, the two locking members can be unlocked by one cable by utilizing the stroke length of the cable. Therefore, the two rotating shafts can be unlocked by a simple structure.

[0386] <Effects of the Invention>

[0387] According to the present invention, a vehicle seat and a vehicle capable of further expanding the space of a vehicle cabin can be realized.

[0388] Furthermore, according to the present invention, the seat back can be tilted forward with a simple structure.

[0389] Furthermore, according to the present invention, the space in the vehicle cabin can be further expanded.

[0390] Furthermore, according to the present invention, the lock of the two rotation shafts can be released with a simple structure.

[0391] <Specific implementation>

[0392] Reference Figure 26 to Figure 32C A vehicle V200 according to the third embodiment will be described.

[0393] The vehicle V200 of the third embodiment includes a vehicle seat device S200. Fig.26As shown, the vehicle seat device S200 includes, for example, a plurality of vehicle seats arranged side by side in the front-rear direction.

[0394] Furthermore, the vehicle seat may be, for example, a seat installed in a ship or an airplane.

[0395] In the following description, the so-called "front-rear direction" refers to the front-rear direction of the vehicle seat, and is a direction that is consistent with the traveling direction of the vehicle V200 when traveling. In addition, the so-called "seat width direction" refers to the width direction of the vehicle seat, and is a direction that is consistent with the left-right direction observed from the occupant (seat occupant) sitting on the vehicle seat. In addition, the so-called "up-down direction" refers to the up-down direction of the vehicle seat, and is a direction that is consistent with the vertical direction when the vehicle V200 is traveling on a horizontal plane.

[0396] <Structure of vehicle seat device>

[0397] like Fig.26 As shown, the vehicle seat device S200 includes: a rear seat 201 (vehicle seat) arranged at the rear side in the front-rear direction of the vehicle V200; and a front seat 202 arranged further forward than the rear seat 201. In addition, the number of vehicle seats is not limited thereto, and for example, a structure including front seats, middle seats, and rear seats may be provided as a three-row seat.

[0398] like Fig.26 As shown, a step is formed on the vehicle body floor F200 of the vehicle V200. An upper step portion F201 is formed on the rear side of the vehicle V200, and a lower step portion F202 is formed on the front side of the vehicle V200. The rear seat 201 is arranged on the upper step portion F201 of the vehicle body floor F200, and the front seat 202 is arranged on the lower step portion F202 of the vehicle body floor F200.

[0399] Furthermore, the vehicle body floor panel F200 on which the vehicle seat is arranged may be a flat floor panel without forming a step.

[0400] <Rear seat (vehicle seat)>

[0401] The rear seat 201 includes: a seat body having a seat back 210, a seat cushion 211 and a headrest 212; a base member 213 mounted on the vehicle body floor F200; a rear link member 214 for rotating the seat back 210 relative to the base member 213; a front link member 215 for rotating the seat cushion 211 relative to the base member 213; a locking device 216 for limiting the rotation of the rear link member 214; and an operating member 217 for releasing the locking state of the locking device 216.

[0402] Furthermore, a pair of the base member 213 , the rear link member 214 , and the front link member 215 are provided in the seat width direction, and are disposed on both end sides of the seat back 210 and the seat cushion 211 , respectively.

[0403] The rear seat 201 can Fig.26 The usage status shown, Fig. 27 The first folded state shown, Fig.28 The standing position shown, Fig.29 The storage status shown, Fig.30 The flipped state shown, Fig.31 Switching between the second folded state shown.

[0404] like Fig.26 As shown, the use state is a state in which an occupant can sit, and is a state in which the seat back 210 is in an upright position and the seat cushion 211 is in a flat position.

[0405] like Fig. 27 As shown, the first folded state is a state in which the seat back 210 is in a forward tilted position and the seat cushion 211 is in a flat position.

[0406] In other words, the first folded state is a state in which the seat back 210 is rotated via the rear link member 214 from the use state and tilted forward toward the seat cushion 211 to be folded to overlap the seat cushion 211 in the upper step portion F201 of the vehicle body floor F200 .

[0407] like Fig.28 As shown, the standing state is a state in which the rear end portion (rear end portion 213e) of the base member 213 is flipped up from the first folded state and the base member 213, the seat back 210 and the seat cushion 211 are rotated forward with the center portion (support shaft 213f) of the base member 213 as the center and stand up.

[0408] like Fig.29 As shown, the stowed state is a state in which the base member 213 is moved downward toward the front together with the seat body from the standing state and stowed in parallel with the lower step portion F202 of the vehicle body floor F200.

[0409] In other words, the stowed state is a state in which the base member 213 moves downward toward the front side together with the seat back 210 and the seat cushion 211 and is stowed in the lower step portion F202 in the posture in which the seat back 210 is folded onto the seat cushion 211 from the first folded state.

[0410] like Fig.30 As shown, the flip-up state is a state in which the seat back 210 is in an upright position and the seat cushion 211 is in an upright position.

[0411] In other words, the flipped-up state is a state in which the seat cushion 211 is rotated around the front end portion of the seat cushion 211 via the front link member 215 from the use state and stands up relative to the base member 213 at the upper step portion F201 of the vehicle body floor F200.

[0412] like Fig.31 As shown, the second folded state is a state in which the seat back 210 is in a forward tilted position and the seat cushion 211 is in an upright position. In detail, the second folded state is a state in which the seat cushion 211 is in a position where it is moved forward from the flipped-up state by the front link member 215 while maintaining an upright posture at the upper step portion F201 of the vehicle body floor F200, and the seat back 210 is rotated and tilted forward by the rear link member 214 to overlap the base member 213.

[0413] In other words, the second folded state is a state in which the rotating end 211b of the seat cushion 211 is flipped forward from the use state and the seat cushion 211 is erected, and at the rear position of the erected seat cushion 211, the seat back 210 is folded toward the base member 213 on the upper step portion F201 of the vehicle body floor F200.

[0414] The seat back 210 is a seat back that supports the back of a seated person from behind, and is formed by placing a cushion material P200 on a back frame 210 a as a framework and covering the cushion material T200 .

[0415] The seat cushion 211 is a seat portion that supports a seated person from below, and is configured by placing a cushion material P200 on a cushion frame 211 a as a framework and covering the cushion material T200.

[0416] The headrest 212 supports the head of the seated person from behind, and is formed by placing a cushion material on a headrest pillar (not shown) as a core material and covering the cushion material with a skin material.

[0417] like Fig.26 As shown, the base member 213 is mounted on the vehicle body floor F200 and supports the seat back 210 and the seat cushion 211 in a rotatable manner. The base member 213 includes: a fixed portion 213a fixed to the lower step portion F202 of the vehicle body floor F200; an arm portion 213b rotatably mounted on the fixed portion 213a; a bracket 213c rotatably mounted on the arm portion 213b with the support shaft 213f as the center; and a force applying mechanism 213d to assist in the switching action between the use state and the storage state of the rear seat 201.

[0418] The base member 213 has a locking mechanism (not shown) for maintaining the rear seat 201 in each of the use state, the first folded state, the upright state, the stored state, the flipped state, and the second folded state.

[0419] The fixing portion 213a is fixed to the lower step portion F202 of the vehicle body floor F200, and supports the arm portion 213b in a rotatable manner. A biasing mechanism 213d is provided inside the fixing portion 213a.

[0420] The arm 213b is a long member and supports the bracket 213c so as to be rotatable relative to the vehicle body floor F200. The lower end of the arm 213b is rotatably mounted on the fixed portion 213a. The upper end of the arm 213b is rotatably mounted on the bracket 213c.

[0421] like Fig.26 As shown, the bracket 213c is an L-shaped member extending in the front-rear direction in a side view and is provided on the upper step portion F201 of the vehicle body floor F200. The bracket 213c supports the seat back 210 and the seat cushion 211 via the rear link member 214 and the front link member 215 in a rotatable manner.

[0422] In detail, the arm 213b is rotatably mounted on the central portion of the bracket 213c. The rear link member 214 is rotatably mounted on the rear end portion (rear end portion 213e) of the bracket 213c. The front link member 215 is rotatably mounted on the front end portion of the bracket 213c.

[0423] When the rear seat 201 is Fig.26 The usage status shown, Fig. 27 The first folded state shown, Fig.30 The flipped state shown and Fig.31 In the second folded state shown, the bracket 213c is placed on the upper step portion F201 of the vehicle body floor F200.

[0424] When the rear seat 201 is Fig.29 In the stowed state shown, the bracket 213c is placed on the lower step portion F202 of the vehicle body floor F200.

[0425] In addition, when the rear seat 201 is Fig.28 In the upright state shown, the bracket 213c is in an upright position relative to the vehicle body floor F200.

[0426] When the rear seat 201 is rotated from the use state to the standing state, the force mechanism 213d resists the weight of the seat body and the base member 213 to assist the rotation of the seat body and the base member 213. When the rear seat 201 is rotated from the standing state to the storage state, the force mechanism 213d applies resistance to the seat body and the base member 213 so that the seat body and the base member 213 are slowly rotated to the storage state.

[0427] When the rear seat 201 is rotated from the stowed state to the use state, the urging mechanism 213d assists the rotation action against the weight of the seat body and the base member 213. When the rear seat 201 is rotated from the erected state to the use state, the urging mechanism 213d applies resistance to the seat body to slowly rotate the seat body to the use state.

[0428] The rear seat 201 is rotated by the arm portion 213b of the base member 213, from the first folded state ( Fig. 27 ) is switched to the standing state in which the rear end portion 213e of the base member 213 is turned up and simultaneously rotated to the front side and stands up ( Fig.28 Then, the rear seat 201 is switched from the standing state to the stowed state in which the rear end portion 213e of the base member 213 is rotated downward and the seat body and the base member 213 are simultaneously moved downward toward the front side and stowed ( Fig.29 ).

[0429] Thus, from the use state, the seat back 210 is folded to overlap the seat cushion 211, and the seat back 210 is rotated and erected while maintaining the folded posture, and moves forward and downward, so that the rear seat 201 is in the storage state. Therefore, the base member 213 can switch the seat body between the use state and the storage state in a parallel movement manner.

[0430] In addition, in the present embodiment, the structure is set so that the seat body is switched from the use state to the storage state in a parallel moving manner, but it can also be set as a structure in which the seat body is switched from the use state to the storage state in a flipping manner. In this case, the rear seat 201 is switched to the storage state as follows: from the upright state, the rear end 213e of the base member 213 is further rotated to the front side, and the seat body and the base member 213 are simultaneously moved downward toward the front side in the flipped state, so that the seat cushion 211 is arranged above the seat back 210 and is stored.

[0431] In addition, in this embodiment, the rear seat 201 is Fig. 27 The first folded state shown in the figure is rotated forward and locked by a locking mechanism not shown in the figure. Fig.28 Then, the rear seat 201 moves from the upright state to the Fig.28However, the present invention is not limited thereto, and the rear seat 201 may be configured to switch to the storage position from the first folded state without changing to the standing state.

[0432] In addition, in this embodiment, the rear seat 201 is set from Fig. 27 The structure shown in the figure switches from the first folded state to the stored state, but it can also be set to Fig.31 The second folded state shown in the figure is switched to the storage state. In this case, it is also possible to switch to the standing state in which the rear end portion 213e of the base member 213 is turned up and rotated to the front side and stands up.

[0433] Then, the rear seat 201 can be switched from the standing state to a stowed state in which the rear end 213e of the base member 213 is rotated downward and the seat body and the base member 213 are simultaneously moved downward toward the front side to be stowed. Furthermore, the rear seat 201 can also be switched from the standing state to a stowed state in which the rear end 213e of the base member 213 is further rotated forward and the seat body and the base member 213 are simultaneously moved downward toward the front side to be stowed in a manner that the seat cushion 211 is arranged above the seat back 210.

[0434] like Fig.26 As shown in FIG. 1 , the rear link member 214 is a member that rotatably connects the base member 213 and the seat back 210 . The seat back 210 rotates with respect to the base member 213 via the rear link member 214 so as to tilt forward.

[0435] The rear link member 214 includes a vertically elongated link portion 214a, a first rotation axis 214b provided at an upper end of the link portion 214a, and a second rotation axis 214c provided at a lower end of the link portion 214a.

[0436] When the rear seat 201 is in use, the first rotation axis 214 b is disposed above the second rotation axis 214 c. In other words, the first rotation axis 214 b and the second rotation axis 214 c are disposed at different positions when viewed from the side of the rear seat 201 .

[0437] In addition, the first rotation axis 214 b and the second rotation axis 214 c are separated in the up-down direction by a distance greater than the thickness of the rotation end portion 211 b of the seat cushion 211 .

[0438] The link part 214a is a long rod-shaped member extending in the vertical direction. A first rotation shaft 214b is mounted on the upper end (one end) of the link part 214a, and a second rotation shaft 214c is mounted on the lower end (the other end) of the link part 214a.

[0439] The first rotation shaft 214b is attached to the upper end of the link portion 214a and rotatably supports the lower end 210b of the seat back 210. The second rotation shaft 214c is attached to the rear end 213e of the base member 213 and rotatably supports the lower end of the link portion 214a.

[0440] In other words, the seat back 210 is rotatably mounted on the link portion 214a about the first rotation axis 214b, and the link portion 214a is rotatably mounted on the rear end portion 213e of the base member 213 about the second rotation axis 214c.

[0441] The rear seat 201 switches between a use state and a first folded state around the first rotation axis 214 b , and switches between a use state and a second folded state around the second rotation axis 214 c .

[0442] In this way, the rear seat 201 has two rotation axes (the first rotation axis 214b and the second rotation axis 214c) separated in the vertical direction, and can be switched between a state in which the seat back 210 is tilted forward and folded onto the seat cushion 211 from the use state, and a state in which the rotation end 211b of the seat cushion 211 is flipped forward, the seat cushion 211 is erected, and the seat back 210 is tilted forward and folded from the use state.

[0443] Therefore, the rear seat 201 can be placed in various configurations using a simple structure.

[0444] In the present embodiment, the seat back 210 is configured to rotate relative to the base member 213 via the rear link member 214 . However, the seat back 210 may be directly and rotatably provided on the base member 213 without providing the rear link member 214 .

[0445] In this case, the first rotation shaft 214b and the second rotation shaft 214c rotatably connect the seat back 210 and the base member 213. When the passenger switches the rear seat 201 from the use state to the first folding state, only the first rotation shaft 214b rotatably connects the seat back 210 and the base member 213, and the second rotation shaft 214c is disconnected, thereby folding the seat back 210. Furthermore, when the passenger switches the rear seat 201 from the use state to the second folding state, only the second rotation shaft 214c rotatably connects the seat back 210 and the base member 213, and the first rotation shaft 214b is disconnected, thereby folding the seat back 210.

[0446] In this way, by providing two rotation shafts that directly connect the base member 213 and the seat back 210, it is possible to switch between the use state, the first folded state, and the second folded state. Furthermore, when both rotation shafts connect the base member 213 and the seat back 210, the seat back 210 is in a locked state, and when the connection of one of the rotation shafts is released, the seat back 210 is in a locked state. Therefore, the use state, the first folded state, and the second folded state can be switched with a simple structure.

[0447] like Fig.26 As shown in FIG. 2 , the front link member 215 is a member that connects the base member 213 and the seat cushion 211 in a rotatable manner. Fig.30 As shown, the seat cushion 211 is rotated by the front link member 215 in such a manner that the rotation end portion 211 b is flipped up relative to the base member 213 .

[0448] The front link member 215 includes a connecting portion 215a extending in the vertical direction, a third rotation axis 215b provided at the upper end of the connecting portion 215a, and a fourth rotation axis 215c provided at the lower end of the connecting portion 215a. When the rear seat 201 is in use, the third rotation axis 215b is arranged above the fourth rotation axis 215c.

[0449] The rear seat 201 switches between the use state and the flipped state around the third rotation axis 215 b , and switches between the flipped state and the second folded state around the fourth rotation axis 215 c .

[0450] In addition, the front link member 215 is provided with a locking device (not shown) for limiting the rotation of the front link member 215 and an operating member (not shown) for releasing the lock of the locking device. The locking device provided in the front link member 215 may be the same locking mechanism as the locking device 216 of the rear link member 214 described later, or may be a different locking mechanism.

[0451] Thus, the rear seat 201 can be switched from the use state to a state in which the rotation end 211b of the seat cushion 211 is turned up forward with the third rotation axis 215b as the center. In addition, the rear seat 201 can be switched from the turned-up state to a storage state in which the seat cushion 211 moves forward and the seat back 210 tilts forward and is folded while maintaining the upright posture of the seat cushion 211.

[0452] Therefore, the rear seat 201 can be placed in various configurations using a simple structure.

[0453] like Fig.26 As shown, the locking device 216 is a locking mechanism that is provided inside the rear link member 214 and restricts the rotation of the rear link member 214 .

[0454] like Figures 32A to 32C As shown, the locking device 216 has a first locking member 216a for locking the first rotating shaft 214b, and a second locking member 216b for locking the second rotating shaft 214c.

[0455] like Fig.26 , Fig. 27 As shown, the seat back 210 is restricted from rotating by the first locking member 216a, thereby being locked in the use state (standing position) or the first folding state (forward tilting position). In addition, the seat back 210 can also be locked in a position other than the standing position or the forward tilting position.

[0456] In addition, if Fig.26 , Fig.31 As shown, the seat back 210 is restricted from rotating by the second locking member 216b, thereby being locked in the use state (standing position) or the second folding state (forward tilting position). In addition, the seat back 210 can also be locked in a position other than the standing position or the forward tilting position.

[0457] The operation member 217 includes an operation lever 217 a operated by the passenger, and a cable 217 b connecting the operation lever 217 a and the locking device 216 .

[0458] like Fig.26 As shown, the operation lever 217 a is an operation portion for releasing the lock of the locking device 216 , and is provided at the upper end portion 210 c of the seat back 210 .

[0459] like Figures 32A to 32C As shown, the cable 217b is a metal wire extending in the up-down direction and is used to pull the first locking member 216a and the second locking member 216b.

[0460] The first locking member 216a is connected to the middle portion 217b1 of the cable 217b. The second locking member 216b is connected to the lower end 217b2 of the cable 217b. The first locking member 216a and the second locking member 216b are attached to the cable 217b with slack between the middle portion 217b1 and the lower end 217b2 of the cable 217b.

[0461] Here, use Figures 32A to 32C The locking operation of the locking device 216 and the operating member 217 will be described.

[0462] When the passenger pulls the operating lever 217a of the operating member 217 upward, the cable 217b is pulled upward, and the first locking member 216a connected to the middle portion 217b1 of the cable 217b is moved from the locking position ( Fig.32A ) to the lock release position ( Fig.32B At this time, due to the slack of the cable 217b, only the first locking member 216a is released.

[0463] Furthermore, when the first locking member 216a is released from the lock release position ( Fig.32B ) When the passenger further pulls the operating lever 217a upward, the cable 217b is further pulled upward, and the second locking member 216b connected to the lower end 217b2 of the cable 217b is released from the locking position ( Fig.32A , Fig.32B ) to the lock release position ( Fig.32C At this time, the first locking member 216a and the second locking member 216b are both released by the cable 217b.

[0464] That is, through the cable 217b from Fig.32A The normal position shown is pulled to the Fig.32B In the first released position shown, the first locking member 216a is transferred from the locked position to the lock released position.

[0465] By cable 217b from Fig.32A The usual position shown or Fig.32B The first release position shown is further pulled by the operating rod 217a to Fig.32C In the second released position shown, the second locking member 216b is transferred from the locked position to the lock released position.

[0466] In addition, the so-called Fig.32A The normal position of the cable 217b shown is a position before the operating rod 217a is pulled by the passenger, and is a position where the first locking member 216a and the second locking member 216b are in a locked state.

[0467] So-called Fig.32B The first released position of the cable 217b shown is a position where the operating rod 217a is pulled upward by the occupant, and is a position where the first locking member 216a is in an unlocked state and the second locking member 216b is in a locked state.

[0468] So-called Fig.32C The second released position of the cable 217b is a position where the operating rod 217a is pulled further upward by the occupant from the first released position, and the first locking member 216a is in the unlocked state and the second locking member 216b is in the unlocked state.

[0469] When the first locking member 216 a is transferred to the unlocked state, the seat back 210 can be rotated in a manner tilted forward from the use state to the first folded state.

[0470] When the second locking member 216b is transferred to the unlocked state, the seat back 210 can be rotated in a forward tilting manner from the use state to the second folded state. At this time, since the first locking member 216a has also been transferred to the unlocked state, the seat back 210 can be freely rotated at the forward tilting angle and can also be freely moved in the front-rear direction. In addition, the seat back 210 is positioned in the front-rear direction by making the headrest 212 abut against the seat cushion 211.

[0471] In the present embodiment, the seat back 210 rotates in a forward tilting manner, but may also rotate in a rearward tilting manner.

[0472] In the present embodiment, the rear seat 201 is switched from the use state to the storage state by the seat back 210 being tilted forward and folded, but the rear seat 201 may be switched from the use state to the storage state by the seat cushion 211 being flipped up rearward.

[0473] In addition, the operating member 217 is configured to first unlock the first locking member 216a and then unlock the second locking member 216b. However, the operating member 217 is not limited thereto and may also be configured to first unlock the second locking member 216b and then unlock the first locking member 216a.

[0474] In addition, the operating member 217 is configured to release the lock of one of them first by utilizing the stroke length of a cable 217b (operating rod 217a). However, the present invention is not limited thereto, and two cables may be respectively connected to the first locking member 216a or the second locking member 216b, and the lock of one of them may be released first by utilizing the stroke length of the two cables (operating rods).

[0475] Furthermore, the following structure may be adopted: instead of utilizing the stroke length of the cable 217b, a thin plate member, for example, which is axially supported on the rear link member 214 is provided, and the lock of one of them is released first by utilizing the difference between the separation distance between the connection position and the support shaft position of the first locking member 216a and the thin plate member, and the separation distance between the connection position and the support shaft position of the second locking member 216b and the thin plate member.

[0476] <Front seat>

[0477] The front seat 202 includes: a seat body having a seat back 220, a seat cushion 221 and a headrest 222; a support foot member 223 for mounting the seat body on the vehicle body floor F200; a rotation locking member 224 for connecting the seat back 220 to the seat cushion 221 in a rotatable manner; and an operating part 225 for unlocking the rotation locking member 224.

[0478] The front seat 202 can Fig.26 The normal state shown is the same as Fig. 27 Switch between the folded states shown.

[0479] like Fig.26 As shown, the normal state is a state in which an occupant can sit down, and is a state in which the seat back 220 is in an upright position.

[0480] like Fig. 27 , Fig.28 As shown, the folded state is a state in which the seat back 220 is tilted forward and folded to overlap the seat cushion 221 from the normal state, and the rear end 221b of the seat cushion 221 is rotated upward around the front end 221a of the seat cushion 221 to stand up.

[0481] The seat back 220 is a seat back that supports the back of a seated person from behind, and is formed by placing a cushion material P200 on a back frame 220a as a framework and covering the cushion material T200.

[0482] The seat cushion 221 is a seat portion that supports a seated person from below, and is configured by placing a cushion material P200 on a cushion frame 221 c as a framework and covering the cushion material T200 .

[0483] The headrest 222 supports the head of the seated person from behind, and is formed by placing a cushion material on a headrest pillar (not shown) as a core material and covering the cushion material with a skin material.

[0484] like Fig.26 As shown, the foot member 223 is fixed to the lower step portion F202 of the vehicle body floor F200, and supports the cushion frame 221c of the seat cushion 221 in a rotatable manner. The foot member 223 is fixed to the lower step portion F202 by providing a pair of foot portions 223a in the seat width direction. A support shaft 223b is provided at the upper end portion of the front side of the foot member 223. A holding portion 223c is provided at the upper end portion of the rear side of the foot member 223, and the holding portion 223c holds the held portion 224c provided at the lower end portion of the rotation locking member 224.

[0485] The leg member 223 is connected to the cushion frame 221c via the support shaft 223b. Therefore, the leg member 223 can flip up the seat body around the support shaft 223b, thereby switching the seat body between the normal state and the folded state.

[0486] Furthermore, the leg member 223 is provided with a biasing mechanism 223 d that assists the seat body in switching between the normal state and the folded state.

[0487] When the seat body is rotated from the normal state to the folded state, the urging mechanism 223d assists the rotation of the seat body against the weight of the seat body.

[0488] Furthermore, when the seat body is rotated from the folded state to the normal state, the urging mechanism 223d applies resistance to the seat body so that the seat body is slowly rotated to the normal state.

[0489] The rotation locking member 224 connects the lower end 220b of the seat back 220 to the rear end 221b of the seat cushion 221 in a rotatable manner. The seat back 220 is tilted forward relative to the seat cushion 221 and overlaps with the tilting shaft 224a of the rotation locking member 224. The rotation locking member 224 includes a locking mechanism 224b inside. In addition, a held portion 224c held by the holding portion 223c is formed at the lower end portion of the rotation locking member 224.

[0490] The rotation locking member 224 switches the seat back 220 between an upright position in which the seat back 220 is upright relative to the seat cushion 221 and a forward tilted position in which the seat back 220 overlaps the seat cushion 221. The seat back 220 is locked in the upright position or the forward tilted position by restricting its rotational movement by the locking mechanism 224b. In addition, the seat back 220 may be locked in a position other than the upright position or the forward tilted position.

[0491] The operation portion 225 is an operation lever for releasing the lock of the rotation lock member 224 , and is provided at the upper end portion 220 c of the seat back 220 .

[0492] When the passenger operates the operating portion 225, the locking mechanism 224b is transferred from the locked state to the unlocked state. When the locking mechanism 224b is transferred to the unlocked state, the seat back 220 can be rotated in the direction of tilting forward. By the rotation of the seat back 220, the degree of reclining of the seat back 220 (the angle between the seat back 220 and the seat cushion 221) changes.

[0493] Furthermore, in the present embodiment, the seat back 220 rotates in a forward tilted manner, but may also rotate in a rearward tilted manner.

[0494] In the present embodiment, the front seat 202 is switched from the normal state to the folded state by the seat back 220 being tilted forward and folded, but the front seat 202 may be switched from the normal state to the folded state by the seat cushion 221 being flipped up rearward.

[0495] In this embodiment, the rear seat 201 is described as being able to switch between the use state, the first folding state, the standing state, the storage state, the flipped state, and the second folding state. However, the present invention is not limited thereto, and the front seat 202 may be configured to be able to switch between the use state, the first folding state, the standing state, the storage state, the flipped state, and the second folding state.

[0496] <<Fourth embodiment>>

[0497] Below, use Figures 33 to 45 A fourth embodiment of the present invention will be described.

[0498] A fourth embodiment relates to a vehicle seat, and more particularly, to a vehicle seat including a heater.

[0499] <Background Art>

[0500] As disclosed in Japanese Patent Laid-Open No. 2014-36730, there is known a vehicle seat having a heater provided on a cushion. Fig.45 As shown, the seat heater 3150 is attached to the seat cushion pad 3130 using a double-sided tape (adhesive member 3170).

[0501] <Disclosure of the Invention>

[0502] <Problems to be solved by the invention>

[0503] However, in the conventional method, the adhesive member 3170 is applied to a plurality of regions of the seat cushion heater 3150 and the seat cushion heater 3150 is fixed to the seat cushion pad 3130 , which causes a problem of increased cost and work man-hours.

[0504] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle seat including a heater with reduced number of adhesive members required for fixing to a pad.

[0505] <Technical means to solve the problem>

[0506] The problem is solved by the following manner, that is, the vehicle seat according to the present invention includes: a frame; a cushion arranged on the frame; and a heater arranged on the cushion, the heater including a heater substrate and a heater wire arranged on the heater substrate, the heater substrate is provided with a locking portion that is engaged with the cushion, and the cushion is provided with a locked portion that is engaged with the locking portion.

[0507] According to the vehicle seat of the present invention constructed as described above, the heater can be fixed to the pad by engaging the engaging portion provided on the heater base with the engaged portion provided on the pad. Therefore, the adhesive components used to fix the heater can be reduced. That is, the component cost can be reduced by reducing the number of sheets of double-sided tapes and the like as adhesive components. In addition, for example, in the manufacturing process of the vehicle seat, the operation process related to the adhesive component, such as the operation process of sticking the double-sided tape on the heater or peeling off the release paper of the double-sided tape, can be reduced.

[0508] In the above structure, the engaging portion may be an opening formed in the heater substrate, and the engaged portion may be a convex portion formed in the gasket to engage with the opening.

[0509] By forming the opening as the engaging portion and the convex portion as the engaged portion, the heater can be easily fixed to the gasket.

[0510] In the above structure, the protrusion may be formed by a slit formed in the gasket.

[0511] By forming the convex portion by making a slit in the gasket, the engaged portion can be miniaturized, and no additional material is required, so the component cost can be reduced.

[0512] In the above structure, the protrusion may be provided at an end portion of the gasket.

[0513] By providing the protrusion at the end of the gasket, the heater can be easily mounted on the gasket.

[0514] In the above structure, the frame may be a seat cushion frame having a plate frame in front, the pad may be a seat cushion pad supporting the buttocks of an occupant, and at least a portion of the slit forming the convex portion may be arranged at a position overlapping the plate frame in a front view.

[0515] By arranging a part of the slit so as to overlap with the disc frame, the rigidity of the seat cushion pad can be maintained. In addition, the installation state of the seat cushion pad can also be confirmed through the slit.

[0516] In the above configuration, the engaged portion may be disposed at a center in a seat width direction of the pad.

[0517] By arranging the engaged portion at the center of the pad in the seat width direction, the heater can be stably engaged.

[0518] In the above configuration, the length of the protrusion in the seat width direction may be greater than the length of the opening in the seat width direction.

[0519] By making the length of the convex portion in the seat width direction greater than the length of the opening portion in the seat width direction, when they are engaged, the heater substrate around the opening portion is engaged with the convex portion, and the opening portion is less likely to come out of the convex portion.

[0520] In the above configuration, the opening before engagement with the convex portion may be arranged slightly further inward in the extending direction of the heater than when engaged with the convex portion.

[0521] By arranging the opening portion further inward than when engaging with the convex portion, when engaging with the convex portion, tension is applied inward in the extending direction of the heater, and the heater substrate around the opening portion is engaged with the convex portion, thereby making the opening portion less likely to come out.

[0522] In the above structure, the engaging portion may be provided at a position avoiding the heater wire, the circuit breaker, and thermistor included in the heater.

[0523] By providing the engaging portion at a position away from the heater wire, the circuit breaker, and the thermistor, the heater can be mounted on the gasket without affecting the function of the heater.

[0524] In the above configuration, the engaged portion may be provided at a position avoiding a ventilation groove or a recessed portion for a seat belt reminder formed in the pad.

[0525] By arranging the engaged portion at a position avoiding the ventilation groove or the recessed portion for the seat belt reminder, the heater can be mounted on the pad without affecting the function of the seat.

[0526] <Effects of the Invention>

[0527] According to the vehicle seat of the present invention, the heater can be fixed to the pad by engaging the engaging portion provided on the heater base with the engaged portion provided on the pad. Therefore, the adhesive components used to fix the heater can be reduced. That is, the component cost can be reduced by reducing the number of sheets of double-sided tapes and the like as adhesive components. In addition, for example, in the manufacturing process of the vehicle seat, the operation process related to the adhesive component, such as the operation process of sticking the double-sided tape on the heater or peeling off the release paper of the double-sided tape, can be reduced.

[0528] Furthermore, by forming the opening as the engaging portion and the convex portion as the engaged portion, the heater can be easily fixed to the gasket.

[0529] By forming the convex portion by making a slit in the gasket, the engaged portion can be miniaturized, and no additional material is required, so the component cost can be reduced.

[0530] By providing the protrusion at the end of the gasket, the heater can be easily mounted on the gasket.

[0531] By arranging a part of the slit so as to overlap with the disc frame, the rigidity of the seat cushion pad can be maintained. In addition, the installation state of the seat cushion pad can also be confirmed through the slit.

[0532] By arranging the engaged portion at the center of the pad in the seat width direction, the heater can be stably engaged.

[0533] By making the length of the convex portion in the seat width direction greater than the length of the opening portion in the seat width direction, when they are engaged, the heater substrate around the opening portion is engaged with the convex portion, and the opening portion is less likely to come out of the convex portion.

[0534] By arranging the opening portion further inward than when engaging with the convex portion, when engaging with the convex portion, tension is applied inward in the extending direction of the heater, and the heater substrate around the opening portion is engaged with the convex portion, thereby making the opening portion less likely to come out.

[0535] By providing the engaging portion at a position away from the heater wire, the circuit breaker, and the thermistor, the heater can be mounted on the gasket without affecting the function of the heater.

[0536] By arranging the engaged portion at a position avoiding the ventilation groove or the recessed portion for the seat belt reminder, the heater can be mounted on the pad without affecting the function of the seat.

[0537] <Specific implementation>

[0538] Hereinafter, the structure of the vehicle seat of the fourth embodiment of the present invention will be described with reference to the accompanying drawings. However, the embodiment described below is an example for making the present invention easy to understand and does not limit the present invention. That is, the present invention can of course be changed and improved without departing from its main purpose, and the present invention includes its equivalents.

[0539] In addition, as an example of a vehicle seat, a vehicle seat mounted on a vehicle is listed below to explain its structural example. However, the present invention is not limited to a vehicle seat mounted on a ground-moving vehicle with wheels such as a car or train, and may also be a seat mounted on an airplane or ship that moves on other than the ground.

[0540] In the following description, the so-called "front-rear direction" refers to the front-rear direction of the vehicle seat, and is a direction that coincides with the traveling direction of the vehicle when the vehicle is traveling. In addition, the so-called "seat width direction" refers to the width direction of the vehicle seat, and is a direction that coincides with the left-right direction as viewed from the occupant sitting on the vehicle seat. In addition, the so-called "up-down direction" refers to the up-down direction of the vehicle seat, and is a direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0541] In addition, in the following description, when "seat" is added to various directions such as "seat width direction" and "seat height direction", it means the direction relative to the seat of the vehicle; when "vehicle" is added such as "inside of the vehicle" and "outside of the vehicle", it means the direction relative to the vehicle.

[0542] In addition, the shapes, positions, postures, and the like of the various parts of the vehicle seat described below are described assuming that the vehicle seat is in a seated state, unless otherwise specified.

[0543] <Basic structure of the vehicle seat S300>

[0544] Reference Fig.33 and Fig.34 A basic structure of the vehicle seat (hereinafter referred to as the vehicle seat S300 ) according to the present embodiment will be described. Fig.33 It is a perspective view of a vehicle seat S300. Fig.33 In the figure, for the convenience of illustration, a part of the vehicle seat S300 is shown with the cover T300 removed.

[0545] The vehicle seat S300 is a seat placed on the vehicle body floor for the passengers of the vehicle to sit. In the present embodiment, the vehicle seat S300 is used as a front seat equivalent to the front seat of the vehicle. However, the present invention is not limited thereto, and the vehicle seat S300 may also be a rear seat of the vehicle, or in a vehicle including three rows of seats in the front-rear direction, may also be used as a middle seat of the second row or a rear seat of the third row.

[0546] like Fig.33 As shown, the main components of the vehicle seat S300 are: a seat cushion 301, which serves as a seating portion that supports the buttocks of the seated person; a seat back 302, which serves as a seat back portion that supports the back of the seated person; and a headrest 303, which is arranged on the upper part of the seat back 302 and supports the head of the seated person.

[0547] The seat cushion 301 and the seat back 302 sandwich a reclining device 306 (see Fig.34 ) is connected. In addition, a sliding device 307 is provided at the lower part of the seat cushion 301, and the sliding device 307 allows the vehicle seat S300 to be placed on the vehicle body floor in a state where it can slide and move in the front-rear direction.

[0548] The vehicle seat S300 is provided with Fig.34The frame F300 shown mainly includes a seat cushion frame 310 and a backrest frame 320. The seat cushion frame 310 constitutes the framework of the seat cushion 301, and the backrest frame 320 constitutes the framework of the seat back 302.

[0549] The rear end of the seat cushion 301 is connected to the lower end of the seat back 302. The seat cushion 301 is formed by arranging a seat cushion pad 330 on a seat cushion frame 310 and covering the seat cushion pad 330 with a seat cushion cover T300. The seat back 302 is formed by arranging a back cushion pad 340 on a backrest frame 320 and covering the back cushion pad 340 with a backrest cover T300. The seat cushion pad 330 and the back cushion pad 340 correspond to the pad of the present invention.

[0550] The vehicle seat S300 of this embodiment includes a seat cushion heater 350 on the seat cushion pad 330. In more detail, the seat cushion heater 350 is provided between the seat cushion pad 330 and the surface T300. In addition, the vehicle seat S300 includes a backrest heater 360 on the seating surface of the backrest pad 340. In more detail, the backrest heater 360 is provided between the backrest pad 340 and the surface T300. The seat cushion heater 350 and the backrest heater 360 are equivalent to the heater of the present invention. The structures of the seat cushion heater 350 and the backrest heater 360 will be described later.

[0551] The seat cushion pad 330 and the back cushion pad 340 are, for example, urethane substrates formed by foaming using a urethane foaming agent. The skin T300 is made of cloth, film, fabric, leather, or sheet material. In addition, the skin T300 is installed in a manner that covers the seat cushion pad 330 and the back cushion pad 340 in a tensioned state and applies a predetermined tension.

[0552] The seat cushion pad 330 has a hook groove 335 for hooking the cover T300. The backrest pad 340 has a hook groove 345 for hooking the cover T300.

[0553] <Seat frame 310>

[0554] like Fig.34 As shown, the seat cushion frame 310 of the frame F300 is in a substantially square frame shape. The main components of the seat cushion frame 310 are: a pair of seat cushion side frames 311, 311, which respectively constitute the left and right ends in the seat width direction; a plate frame 312, which constitutes the front end of the seat cushion frame 310; and a pressure plate 315.

[0555] The pair of cushion side frames 311, 311 are arranged to be separated in the left-right direction and extend in the front-rear direction of the vehicle in order to define the width of the cushion frame 310. A front pipe 313 connecting the pair of cushion side frames 311, 311 is installed at the front end, and a rear pipe 314 is installed at the rear end.

[0556] The disc frame 312 is fixedly joined to the front side of a pair of cushion side frames 311, 311, and the left and right cushion side frames 311, 311 are connected at the front side by the disc frame 312. More specifically, the left and right ends of the disc frame 312 are fixed to the flanges provided on the cushion side frames 311, 311 by fixing means such as welding.

[0557] The tray frame 312 is a frame mainly used to support the thighs of a seated person (passenger), and the upper surface of the frame is formed of a substantially flat metal plate material formed in a substantially rectangular shape.

[0558] <About pressure plate 315>

[0559] The pressure receiving plate 315 is a member that receives the dead weight of the seat surface of the seat cushion 301. The pressure receiving plate 315 is supported by hooking its front end portion to the front pipe 313 and hooking its rear end portion to the rear pipe 314.

[0560] <Backrest frame 320>

[0561] like Fig.34 As shown, the backrest frame 320 is formed of a pipe processed into a square frame shape. The backrest frame 320 includes: a pair of backrest side frames 321, 321, which constitute the left and right ends in the seat width direction; an upper frame 322, which connects the upper ends of the pair of backrest side frames 321, 321; and a lower frame 323, which connects the lower ends of the pair of backrest side frames 321, 321. The upper frame 322 is formed in an inverted U shape.

[0562] In addition, a pressure plate 325 suspended from the back frame 320 is provided on the back frame 320, and a suspension frame 324 for suspending the pressure plate 325 is provided across the lower end of the upper frame 322. A cylindrical headrest guide 326 is attached to the center of the upper end of the back frame 320. The headrest 303 is attached to the seat back 302 by inserting a headrest support 327 extending from the lower end of the headrest 303 into the headrest guide 326.

[0563] As constituent materials of the components constituting the cushion frame 310 and the backrest frame 320, materials having sufficient rigidity that do not deform significantly when subjected to loads, such as metal materials such as steel or aluminum alloy, can be cited. The means for joining the components constituting the cushion frame 310 and the backrest frame 320 to each other is welding, but as the joining means, joining using bolts or adhesives can also be used in combination.

[0564] < Seat Heater 350 >

[0565] use Fig.36 The seat cushion heater 350 will be described. The seat cushion heater 350 is a planar heating element that warms the seat cushion 301 . Fig.36 The upper part of shows the seat cushion heater 350 before being installed on the seat cushion pad 330. In addition, Fig.36 The lower stage is a diagram of the seat cushion pad 330 as viewed from the front.

[0566] The seat cushion heater 350 mainly includes a planar heater base 351 made of a polyester cloth material or the like, and a heater wire 352 bonded and fixed to the heater base 351 .

[0567] The heater substrate 351 is made of a stretchable cloth material formed into a substantially rectangular shape, and Fig.36 As shown, the front surface body 351a, the rear surface body 351b, and two substantially rectangular connecting surface bodies 351c connecting the front surface body 351a and the rear surface body 351b are inserted into and placed in the hanging groove 335 of the seat cushion pad 330.

[0568] The heater wire 352 is fixed to the heater substrate 351 while winding substantially parallel to the front-back direction. The arrangement of the heater wire 352 is not limited thereto and can be changed as appropriate. The heater wire 352 is fixed to the heater substrate 351 using an adhesive. The heater wire 352 can also be inserted into the interior of the heater substrate 351.

[0569] A thermistor 372 and a circuit breaker 371 for detecting the temperature of the seat heater 350 are provided behind the heater wire 352. A controller (not shown) for controlling the temperature of the seat heater 350 and a connector for connecting to a harness on the vehicle body are also provided.

[0570] An adhesive member 370 for bonding to a seat cushion is provided on the back of the rear rectangular body 351b. In addition, an adhesive member 370 is also provided at the rear end of the front rectangular body 351a. The adhesive member 370 is, for example, a double-sided tape. By fixing the heater substrate 351 with the adhesive member 370 at the front and rear of the hooking groove 335, when a load of an occupant is applied, the heater substrate 351 is prevented from being stretched and accumulated in the hooking groove 335.

[0571] In addition, the front end portion 355 of the heater substrate 351 (more specifically, the front rectangular body 351a) is provided with an engaging portion 353 that engages with the seat cushion pad 330. The seat cushion pad 330 has an engaged portion 331 formed at its front end portion (wrapped portion 338), and the front end portion 355 of the heater substrate 351 can be mounted by engaging the engaging portion 353 with the engaged portion 331.

[0572] In this embodiment, a rectangular opening 354 is formed at the front end 355 of the heater substrate 351 as the engaging portion 353. In addition, a convex portion 333 is formed at the front end of the seat cushion pad 330, more specifically, at the wrapping portion 338 of the seat cushion pad 330 as the engaged portion 331 engaged with the opening 354. Fig.36 As shown in the lower section of FIG. 3 , the convex portion 333 of the seat cushion pad 330 is formed by making two slits 332 at the front end portion (wrapped portion 338 ) of the seat cushion pad 330 .

[0573] like Fig.37 As shown in FIG. 1 , the rear end of the seat heater 350 is fixed by the adhesive member 370. Then, as shown in FIG. Fig.38 As shown, the seat heater 350 is fixed to the seat cushion pad 330 by hooking the opening 354 provided at the front end portion 355 of the heater base 351 to the convex portion 333 of the seat cushion pad 330 .

[0574] In the past, Fig.45 As shown, in order to fix the seat cushion heater 3150 to the seat cushion pad 3130, the front end portion of the heater base material 3151 is also fixed using the adhesive member 3170. The rear end portion of the seat cushion heater 3150 also needs to be fixed to the seat cushion pad 3130 using the adhesive member 3170 after manufacturing to prevent it from being pulled into the hanging groove. On the other hand, the front end portion can be fixed as long as it can prevent the seat cushion heater 3150 from falling off from the seat cushion pad 3130 or prevent the formation of creases during the manufacturing process. After the seat cushion heater 3150 is fixed, the seat cushion pad 3130 is covered with the epidermis T300, so the front end portion of the seat cushion heater 3150 does not need to be fixed using the adhesive member 3170.

[0575] In the vehicle seat S300 of the present embodiment, an opening 354 is formed at the front end 355 of the seat heater 350, and the opening 354 is hooked on the convex portion 333 of the seat pad 330, thereby fixing the seat heater 350. As a result, the adhesive member 370 (double-sided tape) used to fix the front end is no longer required, and the amount of adhesive member 370 used can be reduced, thereby reducing the component cost. In addition, in the manufacturing process of the vehicle seat S300, the operation process related to the adhesive member can be reduced, such as the operation process of sticking the double-sided tape on the back of the seat heater 350 or peeling off the release paper of the double-sided tape.

[0576] In addition, in the present embodiment, the convex portion 333 is formed by forming two slits 332 at the front end portion of the seat cushion pad 330 , more specifically, at the wrapping portion 338 .

[0577] By forming the opening portion 354 as the engaging portion 353 and forming the convex portion 333 as the engaged portion 331 , the front end portion 355 of the heater base material 351 can be easily fixed to the seat cushion pad 330 .

[0578] In addition, since the convex portion 333 is formed by forming the slit 332 in the seat cushion pad 330, the engaged portion 331 can be miniaturized. In addition, compared with the case of providing a new protrusion, there is no additional material, and the component cost can be reduced.

[0579] In addition, if Fig.36 In the present embodiment, as shown in the seat cushion pad 330 in the lower section, at least a portion of the slit 332 forming the convex portion 333 is arranged at a position overlapping with the disk frame 312 in a front view. By overlapping the slit 332 with the disk frame 312 in a front view, the seat heater 350 can be more firmly fixed.

[0580] In addition, the convex portion 333 as the engaged portion 331 is arranged at the center of the seat width direction of the seat cushion pad 330. By arranging the convex portion 333 at the center of the seat width direction, the seat cushion heater 350 can be stably engaged without being displaced left and right. In addition, the convex portion 333 can be arranged at a left-right symmetrical position, thereby, for example, wrinkles generated in the heater base material 351 can be suppressed.

[0581] In addition, the position or number of the protrusion 333 can be selected according to the design of the seat cushion pad 330 set for each vehicle model, but it is preferable to set one protrusion 333 in the center of the seat width direction (left-right direction). By setting one protrusion 333, the installation man-hours of the seat cushion heater 350 are reduced, and the fixity of the heater base material 351 is also improved. In addition, the protrusion 333 provided on the seat cushion pad 330 requires a certain degree of rigidity. Therefore, the length W302 of the protrusion 333 in the seat width direction can be wide. Therefore, it is best to form only one wide protrusion 333.

[0582] In addition, if Fig.36 As shown, the length W302 of the convex portion 333 in the seat width direction is formed to be larger than the length W301 of the opening portion 354 in the seat width direction. By making the length W302 of the convex portion 333 in the seat width direction larger than the length W301 of the opening portion 354 in the seat width direction, when engaged, the heater substrate 351 is engaged with the convex portion 333 of the cushion, and the opening portion 354 is not easily disengaged.

[0583] In addition, the position of the opening 354 before engaging with the protrusion 333 may be arranged at a position that is closer to the extending direction of the heater ( Fig.36 In other words, the distance L301 from the rear end of the front rectangular body 351a before engagement to the opening 354 may be arranged to be shorter than that from the rear end of the front rectangular body 351a before engagement to the opening 354. Fig.35 The distance L302 from the rear end of the front rectangular body 351a to the convex portion 333 is short. With such an arrangement, when the opening portion 354 is engaged with the convex portion 333, the heater substrate 351 is stretched and hooked longer than the original length, so that tension is applied inwardly in the extension direction (front-rear direction) of the seat heater 350. Therefore, the slack of the heater substrate 351 can be suppressed. In addition, since the heater substrate 351 around the opening portion 354 is engaged with the convex portion 333, the opening portion 354 is not easy to fall out of the convex portion 333.

[0584] In addition, the opening portion 354 as the engaging portion 353 may be provided at a position avoiding the heater wire 352, the circuit breaker 371, and the thermistor 372 included in the seat cushion heater 350. That is, the opening portion 354 may be formed at a position where the heater wire 352, the circuit breaker 371, and the thermistor 372 are not arranged on the heater substrate 351. By providing the opening portion 354 at a position avoiding the heater wire 352, the circuit breaker 371, and the thermistor 372, the seat cushion heater 350 can be attached to the seat cushion pad 330 without affecting the function of the seat cushion heater 350.

[0585] use Figures 40A to 40F , another example of the engaged portion 331 formed in the seat cushion pad 330 will be described.

[0586] You can also Fig.40A As shown in the seat cushion pad 330A, four slits 332A are formed at the front end portion (wrapped portion 338) of the seat cushion pad 330A to form two protrusions 333A as the engaged portion 331A. In this case, although not shown, the heater base 351 of the seat cushion heater 350 has two openings 354 formed at positions corresponding to the two protrusions 333A.

[0587] In addition, you can Fig.40B As shown in the seat cushion 330B, six slits 332B are formed at the front end of the seat cushion 330A to form three convex portions 333B as the engaged portions 331B. In this case, although not shown, the seat heater 350 has three openings 354 formed at positions corresponding to the convex portions 333B.

[0588] By providing a plurality of convex portions 333A and 333B, the seat heater 350 can be more firmly attached. In addition, when a plurality of convex portions 333A and 333B are provided, wrinkles generated in the heater base material 351 can also be suppressed by arranging them at left-right symmetrical positions.

[0589] In addition, you can Fig.40C As shown in the seat cushion pad 330C, a protrusion 334 protruding from the front end portion is provided at the front end portion of the seat cushion pad 330C. By providing the protrusion 334 protruding from the front end portion, the protrusion 334 can be easily passed through the opening 354 of the seat cushion heater 350.

[0590] In addition, you can Fig.40D As shown in the seat cushion 330D, the two slits 332D forming the convex portion 333D are formed to be in an inverted V shape when viewed from the front. In other words, the two adjacent slits 332D can be formed so that their bottoms 332aD are close to each other. Fig.36 Compared with the case where the slit 332 is formed in a linear shape as shown, the opening 354 engaged with the convex portion 333D is less likely to come out.

[0591] In addition, you can Fig.40E As shown in the seat cushion pad 330E, the two slits 332E forming the convex portion 333E are formed to be V-shaped when viewed from the front. In other words, the two adjacent slits 332E can be formed so that their bottoms 332aE are separated from each other. Fig.36 Compared with the case where the opening 354 is formed in a linear shape like the slit 332 shown in the figure, it is easier to hook the opening 354 on the convex portion 333E.

[0592] In addition, if Fig.40FAs shown in the seat cushion pad 330F, depending on the vehicle seat, a ventilation groove 336 is sometimes formed to allow the air sent from the mounted blower device (not shown) to flow out from the seat surface. In addition, the seat cushion pad 330F is sometimes formed with a recessed portion 337 to install a pressure sensor for a seat belt reminder, etc.

[0593] The slit 332F and the convex portion 333F formed in the seat cushion pad 330F may be provided at a position avoiding the groove 336 for ventilation or the recessed portion 337 for the seat belt reminder.

[0594] That is, the slit 332F and the convex portion 333F may be formed at a location where the groove 336 and the concave portion 337 are not provided. By arranging the engaged portion 331F at such a location, the seat heater 350 can be installed without affecting the function of the seat.

[0595] Next, use Fig.41A and Fig.41B Another example of the seat cushion heater 350 will be described. Fig.36 Although the opening 354 of the seat cushion heater 350 is shown to be formed in a rectangular shape, the shape of the opening 354 is not limited thereto.

[0596] For example, you can also Fig.41A As shown in the seat heater 350A, the opening 354A as the engagement portion 353A is formed into an elliptical shape that is long in the left-right direction in a plan view.

[0597] In addition, you can also Fig.41B As shown in the seat heater 350B, the opening 354B as the engaging portion 353B is formed in a trapezoidal shape in a plan view. By making the opening 354B in a trapezoidal shape, it is easy to hook the opening 354B on the convex portion 333.

[0598] <Backrest Heater 360>

[0599] Although the seat cushion heater 350 provided in the seat cushion 301 has been described, the same structure can be applied to the seat back heater 360 provided in the seat back 302 . Fig.42 This is a front view of the backrest pad 340 with the backrest heater 360 installed, as seen from the front. Fig.11 This is a rear view of the backrest pad 340 to which the backrest heater 360 is attached, as seen from the rear.

[0600] Similar to the seat cushion heater 350 , the backrest heater 360 mainly includes a planar heater base 361 made of a polyester cloth material or the like, and a heater wire 362 bonded and fixed to the heater base 361 .

[0601] The heater substrate 361 is made of a stretchable cloth material formed into a substantially rectangular shape, and Fig.42 As shown, the backrest pad 340 includes a lower square body 361a, an upper square body 361b, and two connecting surface bodies 361c connecting the lower square body 361a and the upper square body 361b. The connecting surface body 361c is inserted into and placed in the hanging groove 345 of the backrest pad 340.

[0602] like Fig.42 As shown, the upper end portions of the upper rectangular body 361 b and the lower rectangular body 361 a are fixed using an adhesive member 370 .

[0603] An opening 364 is formed at the lower end of the heater base 361 as an engagement portion 363 that engages with the engaged portion 341 of the back pad 340. A convex portion 343 is provided at the lower end (more specifically, the wrap-in portion 348) of the back pad 340 as the engaged portion 341. The convex portion 343 is formed by forming two slits 342 at the lower end (wrapped portion 348) of the back pad 340. The two slits 342 are formed to avoid the wire harness 373 routed at the lower end of the back pad 340.

[0604] After the upper end side of the backrest heater 360 is fixed by the adhesive member 370, Fig.43 As shown, the lower end of the backrest heater 360 is pulled rearward to hook the opening 364 of the backrest heater 360 onto the protrusion 343 of the backrest pad 340 , thereby fixing the backrest heater 360 .

[0605] Conventionally, the lower end of the backrest heater 360 is fixed by the adhesive member 370, but by hooking the opening 364 to the convex portion 343 to fix the lower end of the backrest heater 360, the adhesive member 370 at the lower end of the backrest heater 360 is no longer required. Therefore, the amount of adhesive member 370 used can be reduced. In addition, the operation steps related to the adhesive member 370, such as the operation steps of sticking a double-sided tape on the back of the backrest heater 360 or peeling off the release paper of the double-sided tape, can be reduced.

[0606] use Fig.44 The flowchart shown explains a method for manufacturing a vehicle seat S300 having a heater.

[0607] In order to assemble the vehicle seat S300, in step S3101, pads (seat cushion pad 330, backrest pad 340) and heaters (seat cushion heater 350, backrest heater 360) attached to the pads are prepared.

[0608] A double-sided tape is provided as an adhesive member 370 at one end of the heater, and engaging portions 353 and 363 that engage with the engaged portions 331 and 341 of the gasket are formed at the other end (preparation step).

[0609] The process proceeds to step S3102, where one end of the heater is fixed to the pad using double-sided tape (adhesion process). The process proceeds to step S3103, where the engaging portions 353 and 363 formed at the other end of the heater are engaged with the engaged portions 331 and 341 formed on the pad (engaging process).

[0610] Next, in step S3104, the pad with the heater mounted thereon is disposed on the frame F300 (pad disposing step). The cover T300 is laid on the pad with the heater mounted thereon and fixed thereon, thereby completing the vehicle seat S300 (cover covering step).

[0611] The vehicle seat S300 of the present embodiment is described above using the figures. In the present embodiment, an opening is formed on the heater substrate as a snap-fitting portion, and a convex portion is formed on the seat cushion pad side, but a convex portion may be formed on the heater substrate, and a concave portion for inserting the convex portion may be formed on the pad side, thereby fixing the heater to the pad. For example, a clip may be provided on the heater substrate, and a clip receiving portion may be provided on the pad side, thereby fixing the heater to the pad. In addition, in the present embodiment, the front end portion of the seat cushion pad is snap-fitted with the snap-fitting portion of the heater substrate, but a snap-fitting portion may be provided on the left and right ends or the rear end portion of the seat cushion pad to snap-fit ​​with the snap-fitting portion of the heater substrate. However, when the snap-fitting portion is provided at the front end portion (wrapped portion) of the seat cushion pad, the assembly performance is best, which is preferred.

[0612] In addition, the vehicle seat of the present embodiment is a seat mounted on a vehicle, but the present invention is not limited to the vehicle seat S300 mounted on a ground-moving vehicle with wheels such as a car or a train, and can also be applied to a vehicle seat S300 mounted on an airplane or a ship that moves other than the ground.

[0613] The second to fourth embodiments described above are supplementally described below.

[0614] <<Second embodiment>>

[0615] (Note 1)

[0616] A vehicle seat device comprises a first vehicle seat and a second vehicle seat arranged further forward or rearward than the first vehicle seat in the front-rear direction of the vehicle, wherein the vehicle seat device is characterized in that:

[0617] The first vehicle seat

[0618] including seat backs and seat cushions, and

[0619] The vehicle seat is capable of switching between a use state in which an occupant can sit and a storage state in which the seat back and the seat cushion are folded in an overlapping manner from the use state and simultaneously moved downward toward the second vehicle seat side to be stored.

[0620] The second vehicle seat includes a support member that supports the first vehicle seat.

[0621] The support member is switchable between a storage position where the support member is stored in the second vehicle seat and a support position where the support member is deployed from the storage position toward the first vehicle seat and supports the first vehicle seat.

[0622] When the first vehicle seat is in the stored state, the support member supports the first vehicle seat to restrict movement of the first vehicle seat by switching from the stored position to the support position.

[0623] (Note 2)

[0624] The vehicle seat device according to Supplementary Note 1 is characterized in that the second vehicle seat includes a seat cushion, the support member

[0625] The seat cushion is mounted on the second vehicle seat, and

[0626] The seat cushion, which is stored in the second vehicle seat when in the stored position, is deployed toward the first vehicle seat side from the stored position and switched to the support position.

[0627] (Note 3)

[0628] The vehicle seat device according to Supplementary Note 1 is characterized in that the second vehicle seat comprises: a seat body having a seat back and a seat cushion; and a leg member installed on the vehicle and supporting the seat body,

[0629] The supporting member

[0630] The leg member is mounted on the second vehicle seat, and

[0631] The support member is stored in the leg member when in the stored position, and is deployed toward the first vehicle seat side from the stored position to switch to the support position.

[0632] (Note 4)

[0633] The vehicle seat device according to Supplementary Note 1 is characterized in that the second vehicle seat includes a seat body having a seat back and a seat cushion,

[0634] The supporting member is a rope-like member, and

[0635] One end portion of the support member is fixed to the seat body of the second vehicle seat,

[0636] An engaging portion is provided at the other end of the support member, the engaging portion being engaged with an engaged portion provided on the first vehicle seat in a detachable manner.

[0637] The support member supports the first vehicle seat from above by engaging the engaging portion of the support member with the engaged portion of the first vehicle seat when the first vehicle seat is in the stored state.

[0638] (Note 5)

[0639] The vehicle seat device according to Supplementary Note 1 is characterized in that the support member is a plate-shaped member having a support surface, and when the first vehicle seat is in the stored state, the first vehicle seat is supported from below by the support surface.

[0640] (Note 6)

[0641] The vehicle seat device according to Supplementary Note 5 is characterized in that a recessed portion or a hole portion for storing the storage object is formed on the support surface.

[0642] (Note 7)

[0643] The vehicle seat device according to Supplementary Note 1 is characterized in that a hook portion for hooking luggage is formed at a front end portion of the support member.

[0644] (Note 8)

[0645] The vehicle seat device according to any one of Supplementary Notes 1 to 7, wherein the second vehicle seat comprises a seat back and a seat cushion,

[0646] The first vehicle seat is disposed forward of the first vehicle seat in the front-rear direction of the vehicle, and

[0647] The seat backrest can be switched between a normal state in which the occupant can sit and a folded state in which the seat back is folded to overlap the seat cushion from the normal state and the rear end of the seat cushion is turned up and rotated forward to stand up.

[0648] (Note 9)

[0649] The vehicle seat device according to any one of Supplementary Notes 1 to 7 is characterized in that the first vehicle seat

[0650] The second vehicle seat is disposed further rearward than the second vehicle seat in the front-rear direction of the vehicle, and

[0651] The storage state is switchable between the use state and the storage state, wherein the seat back is folded in a manner overlapping the seat cushion from the use state, and the rear end of the seat cushion is turned up and rotated forward so that the seat cushion overlaps the seat back.

[0652] (Note 10)

[0653] The vehicle seat device according to any one of Supplementary Notes 1 to 7 is characterized in that the first vehicle seat

[0654] The second vehicle seat is disposed further rearward than the second vehicle seat in the front-rear direction of the vehicle, and

[0655] The use state is switchable between the use state and the storage state, wherein the seat back and the seat cushion are folded in an overlapping manner from the use state and are stored while moving downward toward the front in the folded posture.

[0656] (Note 11)

[0657] A vehicle comprises the vehicle seat device according to Supplementary Note 1.

[0658] <<Third Embodiment>>

[0659] (Note 12)

[0660] A vehicle seat, comprising a seat back and a seat cushion, wherein the vehicle seat is characterized in that:

[0661] The vehicle seat

[0662] The seat back is configured to be capable of switching between a use state, a first folded state, and a second folded state. The use state is a state in which an occupant can sit down. The first folded state is a state in which the seat back is folded toward the seat cushion from the use state. The second folded state is a state in which the rear end of the seat cushion is flipped forward and the seat cushion is erected from the use state, and the seat back is folded toward the vehicle body floor at a rear position of the erected seat cushion.

[0663] The invention has: a first rotation axis for rotating the seat back relative to the vehicle body floor when switching from the use state to the first folding state; and

[0664] a second rotation shaft for rotating the seat back relative to the vehicle body bottom plate when switching from the use state to the second folding state;

[0665] The first rotation axis and the second rotation axis are arranged at different positions in a side view of the vehicle seat.

[0666] (Note 13)

[0667] The vehicle seat according to Supplementary Note 12 is characterized in that when the vehicle seat is in the use state, the first rotation axis is arranged above the second rotation axis,

[0668] The first rotation axis and the second rotation axis are separated in the up-down direction by a distance greater than a thickness of the seat cushion.

[0669] (Note 14)

[0670] The vehicle seat according to Supplementary Note 12, characterized in that the vehicle seat includes a base member mounted so as to be movable relative to the vehicle body floor.

[0671] The seat back is rotatably mounted on the base member,

[0672] The seat cushion is rotatably mounted on the base member,

[0673] The vehicle seat is switchable among the use state, the first folded state, and a stowed state in which the base member is stowed while moving downward toward the front side together with the seat back and the seat cushion from the first folded state.

[0674] (Note 15)

[0675] The vehicle seat according to Supplementary Note 14, characterized in that the vehicle seat includes a link member that rotates the seat back relative to the base member,

[0676] The connecting rod member has an elongated connecting rod portion.

[0677] The first rotating shaft is installed at one end of the connecting rod, and the second rotating shaft is installed at the other end of the connecting rod.

[0678] The seat back is mounted on the link member so as to be rotatable about the first rotation axis.

[0679] The link member is mounted on a rear end portion of the base member so as to be rotatable about the second rotation axis.

[0680] (Note 16)

[0681] The vehicle seat according to Note 14 is characterized in that the vehicle seat can be switched between the use state, the first folded state, and the upright state in which the rear end of the base member is flipped up from the first folded state so that the base member rotates toward the front side together with the seat back and the seat cushion and stands up.

[0682] (Note 17)

[0683] The vehicle seat according to Note 14 is characterized in that the vehicle seat can be switched between the use state, the first folding state, and the stowed state in which the base member, the seat back and the seat cushion are simultaneously moved downward toward the front side and stowed when the seat back is folded onto the seat cushion from the first folding state.

[0684] (Note 18)

[0685] The vehicle seat according to any one of Supplementary Notes 12 to 14, characterized in that the vehicle seat comprises: a first locking member for locking the first rotating shaft; a second locking member for locking the second rotating shaft; and an operating member for releasing the locked state of the first locking member and the locked state of the second locking member,

[0686] The operating member includes an operating lever operated by a passenger, and a cable connecting the operating lever to the first locking member and the second locking member.

[0687] The first locking member is transferred from the locked position to the unlocked position by the cable being pulled from the normal position to the first unlocked position by the operating rod.

[0688] As the cable is further pulled by the operating rod from the first release position to the second release position, the second locking member is transferred from the lock position to the lock release position.

[0689] (Note 19)

[0690] A vehicle comprises the vehicle seat according to Appendix 12.

[0691] <<Fourth embodiment>>

[0692] (Note 20)

[0693] A seat for a vehicle, characterized by comprising: a frame;

[0694] a pad disposed on the frame; and

[0695] a heater, disposed on the pad,

[0696] The heater includes a heater substrate and a heater wire disposed on the heater substrate.

[0697] The heater substrate is provided with an engaging portion engaged with the gasket.

[0698] The gasket is provided with an engaged portion that engages with the engaging portion.

[0699] (Note 21)

[0700] The vehicle seat according to Supplementary Note 20 is characterized in that the engaging portion is an opening formed in the heater substrate.

[0701] The engaged portion is a convex portion formed on the gasket to engage with the opening.

[0702] (Note 22)

[0703] The vehicle seat according to Supplementary Note 2 is characterized in that the protrusion is formed by a slit formed in the pad.

[0704] (Note 23)

[0705] The vehicle seat according to Supplementary Note 21 is characterized in that the protrusion is provided at an end portion of the pad.

[0706] (Note 24)

[0707] The vehicle seat according to Supplementary Note 22 is characterized in that the frame is a cushion frame having a disc-type frame at the front,

[0708] The pad is a seat cushion pad that supports the occupant's buttocks,

[0709] At least a portion of the slit forming the convex portion is disposed at a position overlapping with the disk frame in a front view.

[0710] (Note 25)

[0711] The vehicle seat according to Supplementary Note 20 is characterized in that the engaged portion is arranged at the center in the seat width direction in the pad.

[0712] (Note 26)

[0713] The vehicle seat according to Supplementary Note 21 is characterized in that the length of the convex portion in the seat width direction is greater than the length of the opening portion in the seat width direction.

[0714] (Note 27)

[0715] The vehicle seat according to Supplementary note 21 is characterized in that the opening portion before engagement with the protrusion is arranged slightly further inward in the extending direction of the heater than when engaged with the protrusion.

[0716] (Note 28)

[0717] The vehicle seat according to supplementary note 20 is characterized in that the engaging portion is provided at a position avoiding the heater wire, the circuit breaker, and the thermistor included in the heater.

[0718] (Note 29)

[0719] The vehicle seat according to Supplementary Note 20 is characterized in that the engaged portion is provided at a position avoiding a groove for ventilation or a recessed portion for a seat belt reminder formed in the pad.

[0720] Explanation of symbols

[0721] RS: Rear seats

[0722] S, SA: Seats for vehicles

[0723] 1: Seat back

[0724] 2: Seat cushion

[0725] 3: Headrest

[0726] 5: Tilt knob

[0727] 10, 10A: Backrest frame (frame member)

[0728] 11: Hole (engaged portion)

[0729] 11a: Top

[0730] 11b: Bottom

[0731] 12: Steps

[0732] 13: Reinforcement

[0733] 14: Seat fixing part (fixing part)

[0734] 15: Tie ring anchor

[0735] 15a: Slit

[0736] 16: First hole (engaged portion)

[0737] 17: Second hole (engaged portion)

[0738] 20, 20A: Surface material

[0739] 20a, 20Aa: first end (one of the ends)

[0740] 20b, 20Ab: second end portion (other end portion)

[0741] 21, 21A: first engaging portion

[0742] 21a: Top

[0743] 22, 22A: Second engagement portion

[0744] 22a: Top

[0745] 23: First extension

[0746] 23b: Backend

[0747] 24, 24A: Second extension

[0748] 24b: Backend

[0749] 25a, 25b: epidermal sheet

[0750] 26, 26A: drooping part

[0751] 27: Opening

[0752] 28: Wire fasteners

[0753] 28a: Terminal

[0754] 29: Strip (hidden part)

[0755] 30: Backrest pad

[0756] 31: Upper side wrapped part

[0757] 32: Lower side wrap-in

[0758] 33: concave part

[0759] 34: Locking device

[0760] 36: Concave

[0761] <Second embodiment>

[0762] V100: Vehicle

[0763] S101, S102, S103, S104, S105, S106, S107: Vehicle seat device

[0764] F100: Underbody

[0765] F101: Upper steps

[0766] F102: Lower steps

[0767] P100: Gasket material

[0768] T100: Skin material

[0769] 101, 101A: Back seat

[0770] 102, 102A: Front seat

[0771] 110: Seat back

[0772] 110a: Backrest frame

[0773] 110b: Lower end

[0774] 110c: Upper end

[0775] 110d: Engaged portion

[0776] 111: Seat cushion

[0777] 111a: Front end

[0778] 111b: rear end

[0779] 111c: Seat frame

[0780] 112: Headrest

[0781] 113: Base component

[0782] 113a: Rotation axis

[0783] 113b: Force applying mechanism

[0784] 114: Rotation locking member

[0785] 114a: Tilt axis

[0786] 114b: Locking mechanism

[0787] 115: Operation Department

[0788] 120: Seat back

[0789] 120a: Backrest frame

[0790] 120b: Lower end

[0791] 120c: Upper end

[0792] 121: Seat cushion

[0793] 121a: Front end

[0794] 121b: rear end

[0795] 121c: Seat frame

[0796] 122: Headrest

[0797] 123, 123A: Support member

[0798] 123a, 123Aa: Feet

[0799] 123b: Support shaft

[0800] 123c: Maintaining

[0801] 123d: Force application mechanism

[0802] 124: Rotation locking member

[0803] 124a: Tilt axis

[0804] 124b: Locking mechanism

[0805] 124c: Retained portion

[0806] 125: Operation Department

[0807] 130: Supporting member

[0808] 131: Plate-like components

[0809] 131a: Support surface

[0810] 132: Rotation axis

[0811] 133: Storage Department

[0812] 133a: concave part

[0813] 133b: Hole

[0814] 134: Hook

[0815] 140: Supporting member

[0816] 141: Pipe components

[0817] 141a: Supporting part

[0818] 142: Tube rotation axis

[0819] 150: Supporting member

[0820] 151: Rope-like member

[0821] 151a: One end

[0822] 151b: The other end

[0823] 152: snap-fit ​​part

[0824] 160: Supporting member

[0825] 170: Supporting member

[0826] 171: Pipe components

[0827] 171a: Supporting part

[0828] 172: Tube rotation axis

[0829] 180: Supporting member

[0830] 181: Rope-like member

[0831] 181a: One end

[0832] 181b: The other end

[0833] 182: Locking part

[0834] 190: Rotating member

[0835] 191: Upper rotating part

[0836] 191a: Upper fixing part

[0837] 191b: Upper arm

[0838] 191c: Upper connection part

[0839] 192: Lower rotating part

[0840] 192a: Lower fixing part

[0841] 192b: Lower arm

[0842] 192c: Lower connecting part

[0843] <Third embodiment>

[0844] V200: Vehicle

[0845] S200: Vehicle seat device

[0846] F200: Underbody

[0847] F201: Upper steps

[0848] F202: Lower level

[0849] P200: Padding material

[0850] T200: Skin material

[0851] 201: Rear seat (vehicle seat)

[0852] 202: Front seat

[0853] 210: Seat back

[0854] 210a: Backrest frame

[0855] 210b: Lower end

[0856] 210c: Upper end

[0857] 211: Seat cushion

[0858] 211a: Seat frame

[0859] 211b: Rotating end

[0860] 212: Headrest

[0861] 213: Base component

[0862] 213a: Fixed part

[0863] 213b: Arm

[0864] 213c: Bracket

[0865] 213d: Force-applying mechanism

[0866] 213e: rear end

[0867] 213f: pivot

[0868] 214: Rear connecting rod member (connecting rod member)

[0869] 214a: Connecting rod

[0870] 214b: First rotation axis

[0871] 214c: Second rotation axis

[0872] 215: Front connecting rod

[0873] 215a: Connection part

[0874] 215b: Third rotation axis

[0875] 215c: Fourth rotation axis

[0876] 216: Locking device

[0877] 216a: First locking member

[0878] 216b: Second locking member

[0879] 217: Operation components

[0880] 217a: Operating lever

[0881] 217b: Cable

[0882] 217b1: Middle

[0883] 217b2: Lower end

[0884] 220: Seat back

[0885] 220a: Backrest frame

[0886] 220b: Lower end

[0887] 220c: Upper end

[0888] 221: Seat cushion

[0889] 221a: Front end

[0890] 221b: rear end

[0891] 221c: Seat frame

[0892] 222: Headrest

[0893] 223: Leg member

[0894] 223a: Feet

[0895] 223b: Support shaft

[0896] 223c: Maintaining

[0897] 223d: Force-applying mechanism

[0898] 224: Rotation locking member

[0899] 224a: Tilt axis

[0900] 224b: Locking mechanism

[0901] 224c: Retained part

[0902] 225: Operation Department

[0903] <Fourth embodiment>

[0904] S300: Seats for vehicles

[0905] 301: Seat cushion

[0906] 302: Seat back

[0907] 303: Headrest

[0908] 306: Tilt device

[0909] F300: Frame

[0910] T300: Epidermis

[0911] 310: Cushion frame (frame)

[0912] 311: Seat side frame

[0913] 312: Disc frame

[0914] 313: Front tube

[0915] 314: Rear pipe

[0916] 315: Pressure plate

[0917] 320: Backrest frame (frame)

[0918] 321: Backrest side frame

[0919] 322: Upper frame

[0920] 323: Lower frame

[0921] 324: Suspension frame

[0922] 325: Pressure plate

[0923] 326: Headrest guide

[0924] 327: Headrest pillar

[0925] 330, 330A~330F: Seat cushion (cushion)

[0926] 331, 331A to 331F: Engaged portion

[0927] 332, 332A~332F: Slit

[0928] 332aD, 332aE: Bottom

[0929] 333, 333A~333F: convex part

[0930] 334: Protrusion

[0931] 335: Hang into slot

[0932] 336: Ventilation slot

[0933] 337: Depression

[0934] 338: Wrap-up

[0935] 340: Backrest pad (pad)

[0936] 341: The clamped part

[0937] 342: Slit

[0938] 343: convex part

[0939] 345: Hang into slot

[0940] 348: Wrap-up

[0941] 350: Seat cushion heater (heater)

[0942] 351: Heater substrate

[0943] 351a: Anterior facet

[0944] 351b: Posterior facet

[0945] 351c: Connecting Surfaces

[0946] 352: Heater line

[0947] 353, 353A, 353B: snap-fitting part

[0948] 354, 354A, 354B: Opening

[0949] 355: Front end

[0950] 360: Heater for backrest (heater)

[0951] 361: Heater substrate

[0952] 361a: Lower facet

[0953] 361b: Upper facet

[0954] 361c: Connecting Surfaces

[0955] 362: Heater line

[0956] 363: snap-fit ​​part

[0957] 364: Opening

[0958] 370: Bonding components

[0959] 371: Circuit Breaker

[0960] 372: Thermistor

[0961] 373: Harness

Claims

1. A seat for a vehicle, comprising: Frame members; and a skin material covering the frame member, wherein the vehicle seat is characterized in that: The skin material has a first engaging portion and a second engaging portion engaged with the frame member. The first engaging portion is disposed at one end of the skin material. The second engaging portion is disposed at the other end portion, and the other end portion is located on the opposite side of one of the end portions. The frame member includes an engaged portion that engages with the first engaging portion and the second engaging portion of the skin material. The first engaging portion and the second engaging portion are engaged with the same engaged portion.

2. The vehicle seat according to claim 1, characterized in that: The engaged portion is a hole portion formed in a rectangular shape in the frame member, The first engaging portion engages with one side of the hole portion, The second engaging portion engages with the other side facing the one side.

3. The vehicle seat according to claim 1, characterized in that: The first engaging portion is provided with a first extending portion, and the first extending portion is formed so that the length in the seat width direction decreases toward the top end. The second engaging portion is provided with a second extending portion, and the second extending portion is formed so that the length in the seat width direction decreases toward the top end.

4. The vehicle seat according to claim 3, characterized in that: A length of a rear end of the second extension portion in the seat width direction is shorter than a length of a rear end of the first extension portion in the seat width direction.

5. The vehicle seat according to claim 3, characterized in that: The length of the first extension portion in a direction perpendicular to the seat width direction is longer than the length of the second extension portion in the direction perpendicular to the seat width direction.

6. The vehicle seat according to claim 1, characterized in that: A step portion is formed in the frame member, and the engaged portion is arranged near the step portion.

7. The vehicle seat according to claim 6, characterized in that: A reinforcing rib is formed near the step portion.

8. The vehicle seat according to claim 1, characterized in that: The frame member has a fixing portion for fixing the vehicle seat to the vehicle. The engaged portion is disposed at a position overlapping the fixing portion in a direction perpendicular to the seat width direction.

9. The vehicle seat according to claim 1, characterized in that: The frame member has a tether anchor for securing a child seat, The engaged portion is disposed at a position overlapping the tie-eye anchor in the seat width direction.

10. The vehicle seat according to claim 1, characterized in that: The skin material is provided with a wire fastener, and the wire fastener is used to connect the side of the skin material after the skin material is covered on the frame member. The terminal end portion of the wire fastener is covered by the hidden portion.

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