Seat for a vehicle

Abstract

Improve the rigidity of the disc frame installed as a pressure-receiving member on the seat cushion frame. The vehicle seat (S) includes a seat cushion (2), a seat cushion frame (20) forming the skeleton of the seat cushion, a disc frame (25A) installed across the front and rear of the seat cushion frame, and reinforcing brackets (30A), (30B) installed at the lower part of the disc frame to reinforce the disc frame. The rigidity of the disc frame is improved by installing the reinforcing brackets at the lower part of the disc frame.

Description

Technical Field

[0001] The present invention relates to a seat for a vehicle, and more particularly to a seat for a vehicle having a disc frame that supports a passenger from below on a seat cushion. Background Art

[0002] In the past, there has been a seat in a vehicle seat that can cause the seat body to jump forward and fold. The jump-up type vehicle seat is fixed to the vehicle body floor by a locking member to prevent the seat body from jumping up unexpectedly. Further, such a vehicle seat is configured such that a passenger can cause the seat body to jump forward by releasing a locking member provided at the lower end of the seat back using a rod or the like. In the vehicle seat described in Patent Document 1, the locking member (referred to as a locking device in Patent Document 1) is attached to a seat cushion frame formed in a linear shape. Patent Document 1: Japanese Patent Laid-Open No. 2000-355240 Summary of the Invention

[0003] When the locking member is attached to the linear frame, due to insufficient strength, the linear frame bends together with the locking member, which may result in incomplete fixing to the vehicle body floor. In addition, in recent years, a disc frame has been provided as a compression member for supporting a passenger in the seat cushion frame. However, even when the locking member is attached using the disc frame, bending may occur due to insufficient strength.

[0004] The present invention has been made in view of the above problems, and an object thereof is to improve the rigidity of a disc frame attached to a seat cushion frame as a compression member. Further, by increasing the rigidity of the disc frame and attaching the locking member to the disc frame, it is possible to suppress an increase in the number of parts of the locking member and attach the locking member in a compact space.

[0005] The above problem is solved by the following means. A seat for a vehicle includes a seat cushion, a seat cushion frame forming a skeleton of the seat cushion, a disc frame installed across the front and rear of the seat cushion frame, and a reinforcing bracket installed at a lower portion of the disc frame to reinforce the disc frame.

[0006] According to the above seat for a vehicle, by providing a reinforcing bracket at the lower portion of the disc frame, the rigidity of the disc frame is increased. Accordingly, it is possible to stably support a seated passenger and firmly attach a locking member or the like.

[0007] In addition, in the above seat for a vehicle, it is preferable that a cross section of the reinforcing bracket forms a substantially L shape and is disposed across the front and rear of the disc frame.

[0008] By disposing a reinforcing bracket having a substantially L-shaped cross section across the front and rear of the disc frame, it is possible to increase the rigidity of the disc frame in the front-rear direction.

[0009] Further, in the above-described seat for a vehicle, it is preferable that the reinforcing bracket is disposed around the outer side of the disc-shaped frame.

[0010] By disposing the reinforcing bracket around the outer side of the disc-shaped frame, the rigidity of the disc-shaped frame is ensured, and at the same time, the seating comfort is improved.

[0011] Further, in the above-described seat for a vehicle, it is preferable that the reinforcing bracket is constituted by a pair of members disposed opposite to each other on both side portions in the left-right direction of the disc-shaped frame.

[0012] By forming a pair of members disposed opposite to each other on the side portions on the left and right outer sides, the rigidity of the disc-shaped frame can be further improved.

[0013] Further, in the above-described seat for a vehicle, it is preferable that the reinforcing bracket has a wall portion extending in the up-down direction and a joint portion that joins with the disc-shaped frame at the upper end of the wall portion, and the joint portion is disposed more inward than the wall portion.

[0014] By joining the joint portion disposed more inward than the wall portion with the disc-shaped frame, the support force for a passenger seated on the seat for a vehicle is improved.

[0015] Further, in the above-described seat for a vehicle, it is preferable that there is a locking member for fixing the seat cushion to the floor surface, and the locking member is attached to the wall portion of the reinforcing bracket.

[0016] The locking member can be installed in a compact space.

[0017] Further, in the above-described seat for a vehicle, it is preferable that the locking member is installed on the outer side of the wall portion of the reinforcing bracket.

[0018] By installing the locking member on the outer side, the seated passenger is stably supported, and at the same time, the seat cushion can be stably fixed to the floor surface.

[0019] Further, in the above-described seat for a vehicle, it is preferable that the locking member is installed at a portion where a part of the lower edge of the wall portion is grooved.

[0020] By installing the locking member at a portion where a part of the lower edge of the wall portion is grooved, the obstruction of the wall portion to the locking operation can be suppressed, and at the same time, the strength to fix the locking member is ensured. In addition, by grooving a part of the wall portion of the reinforcing bracket, weight reduction can be achieved.

[0021] Further, in the above-described seat for a vehicle, it is preferable that the locking members are respectively provided on the reinforcing bracket constituted by the pair of members, and the pair of locking members are installed at positions in the same front-rear direction that are opposite to each other on the reinforcing bracket.

[0022] By respectively disposing locking members on a reinforcing bracket formed by a pair of members and mounting the pair of locking members at positions in the same front-rear direction that face each other, it is possible to evenly support a passenger and fix a seat cushion.

[0023] Moreover, in the seat for a vehicle, it is preferable that the reinforcing bracket is fixed to a connection frame located in front of and behind the seat cushion frame.

[0024] By fixing the reinforcing bracket to the seat cushion frame, it is possible to improve the rigidity of the seat cushion frame.

[0025] According to the present invention, by disposing a reinforcing bracket below a disc-shaped frame, the rigidity of the disc-shaped frame is improved, and accordingly, it is possible to support a seated passenger from below.

[0026] Moreover, by arranging a reinforcing bracket having a substantially L-shaped cross section across the front and rear of the disc-shaped frame, it is possible to improve the rigidity of the disc-shaped frame in the front-rear direction.

[0027] Moreover, by disposing the reinforcing bracket around the outer periphery of the disc-shaped frame, the rigidity of the disc-shaped frame is ensured, and at the same time, the seating comfort is improved.

[0028] Moreover, by forming a pair of members that are relatively arranged on the left and right outer side portions, it is possible to further improve the rigidity of the disc-shaped frame.

[0029] Moreover, by joining a joint portion disposed more inward than a wall portion to the disc-shaped frame, the supporting force for a passenger seated on the seat for a vehicle is improved.

[0030] Moreover, by mounting the locking member on the wall portion of the reinforcing bracket, it can be mounted in a compact space.

[0031] Moreover, by mounting the locking member on the outer side of the wall portion, a passenger can be stably supported, and at the same time, the seat cushion can be stably fixed to the floor surface.

[0032] By mounting the locking member on a portion where a part of the lower edge of the wall portion is grooved, it is possible to suppress the obstruction of the wall portion to the locking operation, and at the same time, ensure the strength to fix the locking member. Moreover, by grooving a part of the wall portion of the reinforcing bracket, weight reduction can be achieved.

[0033] Moreover, by respectively disposing locking members on a reinforcing bracket formed by a pair of members and mounting the pair of locking members at positions in the same front-rear direction that face each other, it is possible to evenly support a passenger and fix a seat cushion.

[0034] Moreover, by fixing the reinforcing bracket to the seat cushion frame, it is possible to improve the rigidity of the seat cushion. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1A perspective view of the vehicle seat according to the first embodiment of the present invention, as seen from the obliquely front side.

[0036] Figure 2 A perspective view of the seat frame of the vehicle seat, as seen from the obliquely front side.

[0037] Figure 3 A top view of the seat frame of the vehicle seat.

[0038] Figure 4 A bottom view of the seat frame of the vehicle seat.

[0039] Figure 5 A view showing the state where the locking of the unlocking member is released and the seat cushion jumps forward, which is a cross-sectional view along the Figure 3 and Figure 4 V-V line.

[0040] Figure 6 A perspective view of the disc frame with the reinforcing bracket and the locking member installed.

[0041] Figure 7 A side view of the disc frame with the reinforcing bracket and the locking member installed.

[0042] Figure 8 A perspective view of the reinforcing bracket.

[0043] Figure 9 A side view of the reinforcing bracket.

[0044] Figure 10 A perspective view of the vehicle seat according to the second embodiment of the present invention, as seen from the obliquely rear side.

[0045] Figure 11 To show Figure 10 An enlarged view of the interior of the seat in part XI of , which is a view showing the frame with the cushion cover and the tilt cover removed.

[0046] Figure 12 A side view showing the condition around the tilt mechanism.

[0047] Figure 13 Along Figure 12 XIII-XIII line cross-sectional view.

[0048] Figure 14 A perspective view of the mounting member as seen from the obliquely front side.

[0049] Figure 15A A top view of the mounting member.

[0050] Figure 15B A side view of the mounting member as seen from the outside of the vehicle seat.

[0051] Figure 15C Side view of the mounting component as seen from the inside of the vehicle seat.

[0052] Figure 15D Rear view of the mounting component as seen from the rear.

[0053] Figure 16 Perspective view of the vehicle seat according to the third embodiment of the present invention as seen from an obliquely forward direction, showing the appearance.

[0054] Figure 17 Perspective view of the vehicle seat as seen from an obliquely rearward direction, showing the appearance.

[0055] Figure 18 To show Figure 16 Enlarged view of the interior of the seat in part XVIII, showing the frame and the wire support member with the cushion cover removed.

[0056] Figure 19 Perspective view of the wire support member as seen from the outside of the vehicle seat.

[0057] Figure 20A Perspective view of the first support member constituting the wire support member.

[0058] Figure 20B Perspective view of the second support member constituting the wire support member.

[0059] Figure 21 Perspective view showing the arrangement state of the wire support member and the cover member.

[0060] Figure 22 Perspective view of the inclined inner cover constituting the cover member as seen from an obliquely rearward direction.

[0061] Figure 23 Explanatory view of the seat cushion bottom cover constituting the cover member.

[0062] Figure 24A Explanatory view showing the state of the transmission member when the seat backrest is erected, as seen from an obliquely rearward direction of the vehicle seat.

[0063] Figure 24B Explanatory view showing the state of the transmission member when the seat backrest is erected, as seen from the lower side of an obliquely rearward direction of the vehicle seat.

[0064] Figure 25A Explanatory view showing the state of the transmission member when the seat backrest is tilted forward, as seen from the upper side of an obliquely rearward direction of the vehicle seat.

[0065] Figure 25BIt is an explanatory diagram showing the state of the transmission member when the seat back is reclined forward, and is a view of the vehicle seat seen from the inner side of the rear oblique direction.

[0066] Figure 25C It is an explanatory diagram showing the state of the transmission member when the seat back is reclined forward, and is a view of the vehicle seat seen from the rear. Detailed implementation mode

[0067] <The first implementation mode>

[0068] Hereinafter, with reference to the drawings, the configuration of the vehicle seat according to the first embodiment of the present invention will be described. However, the above-described embodiment is merely an example for easily understanding the present invention and does not limit the present invention. That is, it is obvious that the present invention includes its equivalents while being changed and improved without departing from its gist.

[0069] In addition, in the following description, the content related to the material, shape, and size of the seat constituent parts is merely a specific example and does not limit the present invention.

[0070] Furthermore, in the following description, the vehicle seat S mounted on a vehicle is taken as an example of the vehicle seat for a vehicle and its configuration example will be described. However, the present invention is not limited to the vehicle seat S mounted on a vehicle, train, etc. having wheels and traveling on the ground. For example, it can also be applied to seats mounted on airplanes, ships, etc. moving outside the ground.

[0071] In addition, in the following description, the "front-rear direction" is the front-rear direction of the vehicle seat and is the same direction as the traveling direction of the vehicle when traveling. In addition, the "seat width direction" is the lateral width direction of the vehicle seat and is the same direction as the left-right direction seen by a passenger sitting on the vehicle seat. In addition, the "up-down direction" is the up-down direction of the vehicle seat and is the same direction as the vertical direction when the vehicle is traveling on a horizontal plane. In addition, when simply referred to as "outer side", it refers to the side closer to the outer side in the direction from the center of the vehicle seat toward the outer side, and when referred to as "inner side", it means the side closer to the center in the direction from the outer side of the vehicle seat toward the center.

[0072] In addition, regarding the shape, position, posture, etc. of each part of the vehicle seat described below, unless otherwise specified, the case where the vehicle seat is in the seated state described later is assumed for the description.

[0073] <Vehicle seat S>

[0074] Refer to Figure 1 The basic configuration of the vehicle seat S according to the first embodiment will be described. Figure 1It is a perspective view of a vehicle seat S. For the convenience of illustration, the structure is shown with the cushion cover T or the seat cushion P removed. Figure 1 A part of the vehicle seat S in [the figure] is illustrated.

[0075] The vehicle seat S is placed on the vehicle body floor BF and is the seat for the passengers of the vehicle. In this embodiment, the vehicle seat S is used as a rear seat corresponding to the rear seats of the vehicle. However, it is not limited thereto. The vehicle seat S can also be used as a front seat, and can also be used as the middle seat in the second row or the rear seat in the third row in a vehicle having three rows of seats in the front-rear direction.

[0076] In addition, the vehicle seat S is a flip-up seat, and its shape and posture change between the seated state and the flipped-up state where the rear part of the seat is flipped up. However, unless otherwise specified, the shapes of the respective components are described based on the seated state.

[0077] In Figure 1 In the illustrated structure, the vehicle seat S has a right seat Sa arranged on the right side, a left seat Sb arranged on the left side, and a middle seat Sc arranged between them. The left seat Sb and the middle seat Sc are configured such that their seat backs S1 individually fall forward. In addition, the seat cushion 2 is formed integrally and is arranged so as to be rotatable forward relative to the vehicle body floor BF, and the left seat Sb and the middle seat Sc can be flipped up as a whole.

[0078] As Figure 1 shown, the right seat Sa mainly includes a seat back 1 as a backrest portion that supports the back of the seated person, a seat cushion 2 as a seating portion that supports the buttocks of the seated person, and a headrest 3 arranged on the upper part of the seat back 1 that supports the head of the seated person. The seat back 1 and the seat cushion 2 are connected in a manner that sandwiches the tilting mechanism 7. The seat back 1 is connected to the seat cushion 2 so as to be rotatable and adjustable in angle. The tilting mechanism 7 adjusts the tilting angle of the seat back 1.

[0079] In addition, the seat cushion 2 is installed in a state where it can rotate relative to the vehicle body floor BF through a link mechanism provided in front of the seat cushion 2.

[0080] In addition, the left seat Sb and the middle seat Sc also respectively Figure 1 include the seat back 1, the seat cushion 2, and the headrest 3 as the main components. The seat back 1 and the seat cushion 2 of the left seat Sb and the middle seat Sc are connected in a manner that sandwiches the tilting mechanism 7. As described above, the seat back 1 of the left seat Sb and the middle seat Sc can be made to fall forward as a whole. The seat cushion 2 of the left seat Sb and the middle seat Sc is installed through a link mechanism provided in front of the seat cushion 2 so as to be rotatable as a whole relative to the vehicle body floor BF.

[0081] As Figures 2 - 4 shown, a seat frame F is provided in the right seat Sa, the left seat Sb, and the middle seat Sc. The seat frame F is composed of a seat back frame 10 that forms the skeleton of the seat back 1 and a seat cushion frame 20 that forms the skeleton of the seat cushion 2.

[0082] The seat back frame 10 as a whole forms a square frame shape. The seat back frame 10 includes back side frames 11 disposed on both sides and a back panel 16 disposed therebetween.

[0083] The seat cushion frame 20 also forms a square frame shape, and cushion side frames 21 are provided on its sides. In addition, there are a front connecting frame 22 that connects the cushion side frames 21 in the front and a rear connecting frame 23 that connects them in the rear. The front connecting frame 22 and the rear connecting frame 23 located at the front and rear of the vehicle seat S are made of round tubes. In addition, the front connecting frame 22 and the rear connecting frame 23 are bridged and installed with disc frames 25A, 25B, 25C as compression members. The disc frames 25A, 25B, 25C support the buttocks of the seated passengers from below.

[0084] By providing a seat cushion P and a cushion decorative cover T (cushion cover) outside the seat back frame 10 and the seat cushion frame 20, the seat back 1 and the seat cushion 2 are constituted. The seat cushion P is a polyurethane base material formed by foam molding using, for example, polyurethane foam material, and the cushion decorative cover T is made of a skin material such as cloth, synthetic leather, or genuine leather.

[0085] In addition, a tilting mechanism 7 is provided between the rear end portion of the seat cushion 2 and the lower end portion of the seat back 1. More specifically, the tilting mechanism 7 connects the seat back frame 10 of the seat back 1 and the cushion side frame 20 of the seat cushion 2. The tilting mechanism 7 can adjust the angle of the seat back 1 (seat back frame 10) relative to the seat cushion 2 (seat cushion frame 20). The seat back 1 can be locked at a specific angle and maintained in a tilted state by the tilting mechanism 7. In addition, by releasing the lock, the seat back 1 can be reclined forward or backward.

[0086] As Figure 2 and Figure 4 shown, a sliding guide rail 4 is provided at the lower part of the vehicle seat S. Through this sliding guide rail 4, the vehicle seat S is installed on the vehicle body floor BF in a state capable of sliding in the front-rear direction.

[0087] The sliding guide rail 4 is a component that enables the right seat Sa, left seat Sb, and middle seat Sc to slide in the front - rear direction, and it is a well - known structure (the structure of a common sliding guide rail mechanism). The sliding guide rail 4 has a bottom guide rail fixed to the vehicle body floor BF and an upper guide rail that can slide relative to the bottom guide rail. The upper guide rail can slide relative to the bottom guide rail fixed to the vehicle body.

[0088] <Disc - type frame>

[0089] In the vehicle seat S of the present embodiment, there is provided a disc - type frame 25A - 25C that supports the passenger from below as described above. The disc - type frames 25A - 25C are metal plate - like components, and as Figure 2 , Figure 3 , Figure 6 shown, they are arranged in a manner extending in the front - rear direction. The front ends of the disc - type frames 25A - 25C are fixed to the front connecting frame 22 of the seat cushion frame 20, and the rear ends are fixed to the rear connecting frame 23. In addition, the disc - type frames 25A - 25C have bottom faces 28 that bear the cushion pads of the seat cushion 2, and each bottom face 28 is formed such that its rear end gradually rises towards the rear, and its front end gradually rises towards the front. That is, the bottom faces 28 in the disc - type frames 25A - 25C are formed in a shape that can easily bear the cushion pads.

[0090] The bottom face 28 is located at the rear side of the disc - type frame 25A - 25C, and through - holes 26 are formed in the bottom face 28, which can achieve weight reduction. In addition, two reinforcing ribs 27A and 27B extending in the front - rear direction are formed in the central part of each of the disc - type frames 25A - 25C. The reinforcing ribs 27A and 27B sandwich the through - hole 26 at their rear ends. In addition, a recess 29 is formed at the front end, and the front end of the disc - type frame 25A - 25C is strengthened. In addition, by forming the reinforcing ribs 27A, 27B, and the recess 29 to protrude downward, discomfort to the seated passenger is suppressed.

[0091] <Locking component>

[0092] As Figures 5 - 7 shown, in the vehicle seat S, there are provided locking components 40A and 40B (hereinafter sometimes collectively referred to as locking component 40) that fix the seat cushion 2 (seat cushion frame 20) to the vehicle body floor BF. The locking component 40 is provided with a claw portion 41 that is linked and rotated with an operating lever. By hooking the claw portion 41 of the locking component 40 on a striker (not shown) provided on the vehicle body floor BF, the seat cushion 2 is fixed to the vehicle body floor BF. The passenger unlocks the claw portion 41 of the locking component 40 by operating a lever provided on the vehicle seat S, and rotates the vehicle seat S in the Figure 5 arrow A direction, causing the seat cushion 2 to jump up. Since the locking component 40 is a well - known structure, detailed description thereof is omitted.

[0093] <Reinforcing bracket>

[0094] In this embodiment, reinforcing brackets 30A and 30B are installed at the lower part of the disc frame 25A of the right seat Sa, and a reinforcing bracket 30C is installed at the lower part of the disc frame 25B of the left seat Sb. The reinforcing brackets 30A, 30B, and 30C also function as locking support brackets for mounting and supporting the locking member 40 on the disc frames 25A and 25B.

[0095] The reinforcing bracket 30C provided on the disc frame 25B has substantially the same shape and function as the reinforcing bracket 30B of the disc frame 25A. Therefore, mainly the following will be used Figures 6 - 9 The reinforcing brackets 30A and 30B (hereinafter sometimes collectively referred to as the reinforcing bracket 30) installed on the disc frame 25A of the right seat Sa will be described.

[0096] The reinforcing bracket 30 is a member that strengthens the disc frame 25A by being installed below the disc frame 25A. The reinforcing bracket 30 has a wall portion 31 extending in the vertical direction, and a flange-like joint portion 32 is formed at the upper end portion of the wall portion 31. The joint portion 32 is a portion that abuts and joins with the lower surface of the disc frame 25A. The reinforcing bracket 30 is joined by welding the lower surface of the disc frame 25A and the joint portion 32. The disc frame 25A and the reinforcing bracket 30 can also be joined by fastening members such as bolts. The wall portion 31 and the joint portion 32 of the reinforcing bracket 30 are formed along the lower surface of the disc frame 25A. In addition, the wall portion 31 of the reinforcing bracket 30 is provided in a manner that is substantially orthogonal to the lower surface of the disc frame 25A when viewed from the front. Thus, by installing the reinforcing bracket 30 on the disc frame 25A, the rigidity of the disc frame 25A is improved.

[0097] As Figure 8 shown, the joint portions 32 of the reinforcing brackets 30A and 30B are each formed to bend inwardly toward the right seat Sa, and the cross-section of the reinforcing bracket 30 forms a substantially L-shaped. In other words, the joint portion 32 joined to the disc frame 25A is arranged more inwardly in the width direction than the wall portion 31. The reinforcing bracket 30 is arranged across the front and rear of the disc frame 25A. By installing the reinforcing bracket 30, the rigidity of the disc frame 25A is improved. By improving the rigidity of the disc frame 25A, the passenger's buttocks can be stably supported, and at the same time, the locking member 40 described later can be installed.

[0098] In addition, as Figure 6As shown, the width L1 of the front end portion 25Aa where the disc frame 25A is connected to the front connecting frame 22 is different from the width L2 of the rear end portion 25Ab where it is connected to the rear connecting frame 23. The width L2 of the rear end portion 25Ab is formed to be smaller than the width L1 of the front end portion 25Aa, in other words, narrower. Therefore, a part of the reinforcing brackets 30A and 30B is exposed, and the disc frame 25A is provided between the pair of reinforcing brackets 30A and 30B. The front ends of the reinforcing brackets 30A and 30B are connected to the front connecting frame 22, and the rear ends are connected to the rear connecting frame 23 and fixed. By connecting the reinforcing brackets 30 to the front connecting frame 22 and the rear connecting frame 23, the rigidity of the seat cushion frame 20 is improved.

[0099] In addition, Figure 8 The joint portion 32 of the shown reinforcing bracket 30A is formed to bend inward, but the joint portion 32 can also be formed to bend outward. In other words, the joint portion 32 can also be arranged more outward in the width direction than the wall portion 31. By arranging the joint portion 32 on the outside, the length of the support in the width direction becomes longer, and the support force for the seated passenger can be improved.

[0100] As Figure 6 shown, the reinforcing brackets 30A and 30B are arranged around the outside of the disc frame 25A, that is, the side portions in the left - right direction. More specifically described, the reinforcing bracket 30A and the reinforcing bracket 30B are configured as a pair of components that are symmetrically arranged with respect to the center line C extending in the front - rear direction on both side portions in the width direction (left - right direction) of the disc frame 25A.

[0101] As Figure 6 shown, two locking components 40A and 40B are installed on the disc frame 25A through the reinforcing brackets 30. The locking components 40A and 40B are installed on the wall portion 31 of the reinforcing bracket 30. More specifically, the locking component 40A is installed on the outside of the wall portion 31 of the reinforcing bracket 30A, and the locking component 40B is installed on the outside of the wall portion 31 of the reinforcing bracket 30B. By installing the locking component 40 on the reinforcing bracket 30, the locking component 40 can be installed in a compact space. In addition, by installing the locking component 40 on the outside of the wall portion 31, the seated passenger can be stably supported, and at the same time, the seat cushion 2 can be stably fixed to the floor surface.

[0102] In addition, a part of the lower edge of the wall portion 31 where the locking component 40 is installed is grooved (locking component installation portion 35). More specifically described, as Figure 8 and Figure 9As shown, a part of the lower edge of the wall portion 31 is slotted to form a cutout 35a that is substantially L-shaped when viewed from the side. Accordingly, mounting pieces 35b and 35c are formed. Three through-holes 36 are formed in the locking member mounting portion 35. These three through-holes 36 are used to fix the locking member 40 with a fastening member such as a bolt. One of them is formed in the wall portion 31, and the other two are formed in the mounting pieces 35b and 35c.

[0103] By slotting the wall portion 31 to form the cutout 35a and mounting the locking member 40 at this portion, it is possible to suppress the wall portion 31 from obstructing the locking operation of the locking member 40 and ensure the strength to fix the locking member 40. In addition, by slotting the reinforcing bracket 30 to be substantially L-shaped, weight reduction can be achieved. Further, in the present embodiment, the locking member mounting portion 35 is formed by slotting to be substantially L-shaped, but the cutout can be any shape. For example, the wall portion 31 can be slotted to be substantially C-shaped or substantially V-shaped when viewed from the side.

[0104] A pair of locking members 40A and 40B are respectively provided on a pair of reinforcing brackets 30A and 30B. And the pair of locking members 40A and 40B are mounted at positions in the same front-rear direction that are opposite to each other on the pair of reinforcing brackets 30A and 30B. That is, the pair of locking members 40A and 40B are arranged at positions that overlap when viewed from the side. By arranging the pair of locking members 40A and 40B in this way, it is possible to support the passenger and fix the seat evenly.

[0105] The relatively arranged reinforcing brackets 30A and 30B are not only connected by the disc-shaped frame 25A, as Figure 8 shown, but also connected by two bracket connecting members 37 and 38 that extend in the width direction. The bracket connecting members 37 and 38 are round tubes. The bracket connecting member 37 is arranged in the front, and the bracket connecting member 38 is arranged in the rear to strengthen the reinforcing brackets 30A and 30B. In particular, the bracket connecting member 38 is arranged near the locking member mounting portion 35 where the locking member 40 is mounted, suppressing the misalignment of the locking member 40.

[0106] In addition, a linear member 42 extends from the front ends of the reinforcing brackets 30A and 30B and is connected to the rear connecting frame 23 of the seat cushion frame 20 (refer to Figure 3 ). The seat cushion P of the seat cushion 2 is supported by the linear member 42.

[0107] As described above, the vehicle seat S of the present embodiment has been described with reference to the drawings. In addition, the disc frame 25A of the right seat Sa of the vehicle seat S and the reinforcing brackets 30A and 30B mounted thereon have been described. However, the reinforcing bracket 30 is also mounted on the disc frame 25B of the left seat Sb. Thus, the reinforcing brackets 30 may not be provided on both side portions of the disc frame 25A, and either one of the reinforcing brackets 30A and 30B may be mounted on one side portion.

[0108] <Second Embodiment>

[0109] Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

[0110] The second embodiment relates to a seat for a vehicle occupant, and more particularly to a seat for a vehicle occupant having a plurality of fixing members.

[0111] <Background Art>

[0112] In the past, a three-point seat belt has been installed in a vehicle seat as a means for ensuring the safety of passengers. Since the vehicle seat can move in the front-rear direction, the position of the seat belt changes. Therefore, one point of the seat belt is mounted on the movable guide rail side. Japanese Utility Model Publication No. 62-108040 discloses a vehicle seat in which a hinge bracket is disposed on a lock plate, a seat belt anchor bracket for mounting one point of the seat belt is fixed, and a locking member that penetrates a hole for locking in a retractable manner is supported.

[0113] <Summary of the Invention>

[0114] <Problems to be Solved by the Invention>

[0115] In the vehicle seat disclosed in Japanese Utility Model Publication No. 62-108040, since the hinge bracket and the seat belt anchor bracket are disposed on the lock plate, it is necessary to secure positions for mounting them in the front-rear direction on the lock plate.

[0116] However, in recent years, wiring harnesses, cables, etc. are arranged around the tilt mechanism that connects the seat backrest and the seat cushion. Therefore, a structure that can more compactly concentrate and mount the tilt mechanism and its peripheral accessories including the hinge is required.

[0117] The second embodiment of the present invention has been made in view of the above problems, and an object thereof is to provide a seat for a vehicle occupant having a structure that can more compactly concentrate and mount the tilt mechanism and its peripheral accessories.

[0118] <Means for Solving the Problems>

[0119] The above problem is solved as follows. A vehicle seat having a seat body and a seat belt, the seat body having a seat cushion and a seat back and being fixed to the floor surface of the vehicle; the seat belt restraining a passenger to the seat body, having a hinge member provided at an end of a hinge rotatably connecting the seat back to the seat cushion, a locking member fixing the seat body to the floor surface, a seat belt anchor member fixing the seat belt to the seat body, and a mounting member connecting the hinge member, the locking member, and the seat belt anchor member together.

[0120] According to the above vehicle seat, since there is a mounting member connecting the hinge member, the locking member, and the seat belt anchor member together, multiple components can be fixed in a compact space. By providing such a mounting member, the tilting mechanism and its peripheral components can be more compactly and centrally mounted.

[0121] In addition, in the above vehicle seat, it is preferable that a cross-section of the mounting member forms a hat shape.

[0122] By forming the cross-section of the mounting member into a hat shape, the rigidity of the mounting member can be improved.

[0123] In addition, in the above vehicle seat, it is preferable that an upper portion of the mounting member is formed to protrude outward when viewed from the rear.

[0124] By forming the upper portion of the mounting member to protrude outward, the rigidity of the mounting member can be improved.

[0125] In addition, in the above vehicle seat, it is preferable that in the upper portion of the mounting member, a front region is formed to protrude more outward than a rear region, and a stepped unevenness is formed between the front region and the rear region.

[0126] By forming a stepped unevenness between the front region and the rear region in the upper portion of the mounting member, the rigidity of the mounting member can be further improved.

[0127] In addition, in the above vehicle seat, it is preferable that a dividing line between the upper portion and the lower portion of the mounting member is inclined from the upper rear side to the lower front side when viewed from the side.

[0128] By inclining the dividing line, components such as the locking member mounted below the dividing line can be mounted compactly and effectively.

[0129] In addition, in the above vehicle seat, it is preferable that the hinge member is fixed to a rear position of the upper portion of the mounting member.

[0130] By fixing the hinge member to the rear position of the upper side portion of the mounting member, the mounting can be carried out compactly and effectively.

[0131] In addition, in the above-mentioned vehicle seat, it is preferable that the seat belt anchor member is fixed to the front position of the upper side portion of the mounting member.

[0132] By fixing to the front position with higher rigidity, the seat belt anchor member can be stably fixed.

[0133] In addition, in the above-mentioned vehicle seat, it is preferable that the locking member is fixed to the lower side portion of the mounting member in the front-rear direction.

[0134] By fixing the locking member to the lower side portion, the locking member can be stably fixed.

[0135] In addition, in the above-mentioned vehicle seat, it is preferable that the outer wall portion protruding outward on the upper side portion of the mounting member is located more outward than the locking member fixed to the lower side portion of the mounting member.

[0136] By the outer wall portion of the mounting member being located more outward than the locking member fixed to the lower side portion, the locking member is fixed in a manner that is almost housed inside the mounting member, and the locking member can be firmly fixed in a compact space.

[0137] In addition, in the above-mentioned vehicle seat, it is preferable that a tongue piece formed by bending outward is provided on the lower side of the rear of the mounting member.

[0138] Since there is a tongue piece formed by bending outward, the strength of the mounting member can be further improved.

[0139] <Advantages of the Invention>

[0140] According to the present invention, since there is a mounting member that connects the hinge member, the locking member, and the seat belt anchor member, a plurality of members can be fixed compactly. By providing such a mounting member, the tilt mechanism and its peripheral components can be more compactly and centrally mounted.

[0141] In addition, by forming the cross-section of the mounting member in a hat shape, the rigidity of the mounting member can be improved.

[0142] In addition, by forming the upper side portion of the mounting member to protrude outward, the rigidity of the mounting member can be improved.

[0143] In addition, by forming a stepped unevenness between the front region and the rear region on the upper side portion of the mounting member, the rigidity of the mounting member can be further improved.

[0144] In addition, by tilting the dividing line, components such as locking components installed below the dividing line can be installed compactly and effectively.

[0145] In addition, by fixing the hinge component at the rear position of the upper side portion of the mounting component, installation can be carried out compactly and effectively.

[0146] In addition, by fixing it at a front position with relatively high rigidity, the seat belt anchor component can be stably fixed.

[0147] In addition, by fixing the locking component to the lower side portion, the locking component can be stably fixed.

[0148] In addition, since the outer side wall portion of the mounting component is located more outside than the locking component fixed to the lower side portion, and the locking component is fixed in a manner that is almost housed inside the mounting component, the locking component can be firmly fixed in a compact space.

[0149] In addition, since there is a tongue piece formed in a manner of being bent outward, the strength of the mounting component can be further improved.

[0150] <Detailed Embodiment>

[0151] Hereinafter, with reference to the drawings, the configuration of the vehicle seat according to the second embodiment of the present invention will be described. However, the above-described embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. That is, it is self-evident that the present invention includes its equivalents while being changed and improved without departing from its gist.

[0152] In addition, in the following description, the content related to the material, shape, and size of the seat constituent parts is merely a specific example and does not limit the present invention.

[0153] Furthermore, in the following description, the vehicle seat SA mounted on a vehicle is taken as an example of the vehicle seat and its configuration example will be described. However, the present invention is not limited to the vehicle seat SA mounted on a vehicle such as an automobile or a train that has wheels and travels on the ground. For example, it can also be applied to seats mounted on airplanes, ships, etc. that move other than on the ground.

[0154] In addition, in the following description, the "front-rear direction" is the front-rear direction of the vehicle seat SA and is the same direction as the traveling direction when the vehicle is moving. In addition, the "seat width direction" is the lateral width direction of the vehicle seat SA (in other words, the width direction of the seat main body) and is the same direction as the left-right direction as seen by a passenger sitting on the vehicle seat SA. In addition, the "up-down direction" is the up-down direction of the vehicle seat SA and is the same direction as the vertical direction when the vehicle is traveling on a horizontal plane.

[0155] In addition, "outside of the vehicle" in the width direction of the seat indicates the side closer to the outside of the vehicle body (simply put, the side closer to the nearest door), and "inside of the vehicle" indicates the side closer to the inside of the vehicle body (simply put, the side farther from the nearest door).

[0156] In addition, in the following description, unless otherwise specified, "rotation" means a rotational movement centered on an axis in the width direction of the seat.

[0157] Furthermore, regarding the shape, position, posture, etc. of each part of the vehicle seat described below, unless otherwise specified, it is assumed that the vehicle seat SA is in the seated state described later for the description.

[0158] <Vehicle seat SA>

[0159] Refer to Figure 10 The basic configuration of the vehicle seat SA according to the second embodiment will be described. Figure 10 FIG. is a perspective view of the vehicle seat SA. For the convenience of illustration, a part of the vehicle seat SA is illustrated with the cushion cover TA or the seat cushion PA removed. Figure 10 in the vehicle seat SA is illustrated.

[0160] The vehicle seat SA is a seat placed on the vehicle body floor BFA and on which the passengers of the vehicle sit. In the present embodiment, the vehicle seat SA is used as a rear seat equivalent to the rear seats of the vehicle. However, it is not limited thereto. The vehicle seat SA can also be used as a front seat. In addition, it can also be used as an intermediate seat in the second row or a rear seat in the third row in a vehicle having three rows of seats in the front-rear direction.

[0161] In Figure 10 In the configuration shown, the vehicle seat SA is shown as a left seat SAa and an intermediate seat SAb arranged on the left side of the rear seat. The seat backs 101 of the left seat SAa and the intermediate seat SAb are formed integrally and are configured to fall forward. In addition, in the rear seat, a right seat is provided on the right side of the intermediate seat SAb. Since the right seat has the same configuration as the left seat SAa, the structures of the left seat SAa and the intermediate seat SAb will be described below.

[0162] As Figure 10As shown, the left seat SAa mainly consists of a seat backrest 101 that serves as a backrest part to support the back of the seated person, a seat cushion 102 that serves as a seating part to support the buttocks of the seated person, and a headrest 103 that is disposed above the seat backrest 101 and supports the head of the seated person. The seat backrest 101 and the seat cushion 102 are connected in such a way as to sandwich an inclination mechanism 107 described later. The seat backrest 101 and the seat cushion 102 are collectively referred to as the seat main body SAh. The seat backrest 101 is connected in such a way that it can rotate relative to the seat cushion 102 and the angle can be adjusted. In addition, the inclination mechanism 107 is covered by an inclination outer cover 115 on the outside to protect it from being touched unpreparedly.

[0163] A seat frame FA is provided in the left seat SAa. The seat frame FA is composed of a seat backrest frame 110 that is the frame of the seat backrest 101 and a seat cushion frame 120 that is the frame of the seat cushion 102. The seat backrest frame 110 integrally forms a square frame shape, and the seat backrest frame 110 includes backrest side frames 111 disposed on both sides.

[0164] The seat cushion frame 120 also forms a square frame shape, and cushion side frames 121 are provided on its sides. In addition, there is a front connection frame (not shown) that connects the cushion side frames 121 in the front and a rear connection frame 123 that connects in the rear (refer to Figure 11 ).

[0165] By providing a seat cushion PA and a cushion decorative cover TA (cushion cover) on the outside of the seat backrest frame 110 and the seat cushion frame 120, the seat backrest 101 and the seat cushion 102 are constituted. The seat cushion PA is a polyurethane base material formed by foam molding using a polyurethane foam material, for example, and the cushion decorative cover TA is made of a skin material such as cloth, synthetic leather, or genuine leather, for example.

[0166] In addition, an inclination mechanism 107 is provided between the rear end portion of the seat cushion 102 and the lower end portion of the seat backrest 101. More specifically, the inclination mechanism 107 connects the seat backrest frame 110 of the seat backrest 101 and the seat cushion frame 120 of the seat cushion 102. The inclination mechanism 107 can adjust the angle of the seat backrest 101 (seat backrest frame 110) relative to the seat cushion 102 (seat cushion frame 120). The seat backrest 101 can be locked at a specific angle and maintained in an inclined state by the inclination mechanism 107. In addition, by releasing this lock, the seat backrest 101 can be tilted forward or backward.

[0167] At the end of the hinge 107a (tilt axis) of the tilt mechanism 107, there is a hinge bracket 108 (hinge component) connected to the hinge 107a. The hinge bracket 108 is a plate-shaped component that forms a roughly triangular shape when viewed from the side. An installation hole 108a for connecting to the hinge 107a is formed in the upper part of the hinge bracket 108. Two installation holes 108b for connecting to the installation component 130 are formed in the lower part.

[0168] As Figure 10 and Figure 11 shown, a slide rail 104 is provided at the lower part of the seat main body SAh. Through this slide rail 104, the seat main body SAh is fixed to the vehicle body floor BFA in a state where it can slide back and forth.

[0169] The slide rail 104 is a component that enables the left seat SAa and the middle seat SAb to slide back and forth, and it is a well-known structure (the structure of a common slide rail mechanism). The slide rail 104 has a bottom rail 105 fixed to the vehicle body floor and an upper rail 106 that can slide relative to the bottom rail 105. The upper rail 106 can slide relative to the bottom rail 105 fixed to the vehicle body floor BFA (floor surface). The slide rail 104 has a locking mechanism for locking the sliding movement of the vehicle seat SA. The locking mechanism can be released by pulling up a lever provided, for example, on the shoulder of the left seat SAa. The lever and the locking mechanism are connected by a cable or the like arranged inside the seat and transmit the operating force to release the locked state of the slide rail 104.

[0170] A locking bracket 109 is installed at the upper end of the upper rail 106 and is connected to the installation component 130 described later. Installation holes 109a for combining with the upper rail and installation holes 109b for combining with the installation component 130 are formed in the locking bracket 109.

[0171] A three-point seat belt 112 for restraining the passenger to the seat main body SAh is provided on the vehicle seat SA. By connecting the male buckle 112a of the seat belt 112 to the female buckle 112b of the seat belt anchor 113 installed at the lower right of the middle seat SAb, the passenger sitting on the middle seat SAb is restrained to the seat main body SAh. Although not shown, a seat belt is also provided on the left seat SAa to restrain the passenger sitting on the left seat SAa to the seat main body SAh. The female buckle 112b of the seat belt 112 is connected to the seat belt anchor 113 (seat belt anchor component), and the seat belt anchor 113 is connected to the installation component 130 described later.

[0172] <Installation component>

[0173] Use Figures 11 - 15DThe mounting member 130 will be described. The mounting member 130 is provided in the tilting mechanism 107 that rotates the seat backrest 101 relative to the seat cushion 102. More specifically, it is provided around the hinge 107a of the tilting mechanism 107 and is a member that connects multiple components together. More specifically, as Figure 11 and Figure 12 shown, the mounting member 130 is a single member that is connected to the hinge bracket 108, the locking bracket 109, and the seat belt anchor 113. In other words, one mounting member 130 is used to combine the hinge bracket 108, the locking bracket 109, and the seat belt anchor 113. By using the mounting member 130 to connect multiple components, for example, components related to the tilting mechanism and its peripheral components can be compactly concentrated.

[0174] The mounting member 130 is composed of an upper portion 131 with a U-shaped cross-section and a lower portion 133 that is continuous with the lower end of the upper portion and extends downward. As Figure 13 shown, the overall cross-section of the mounting member 130 is hat-shaped, that is, it forms a shape that folds back at three points. The mounting member 130 of the present embodiment is divided into an upper portion 131 and a lower portion 133 at approximately the midpoint in the vertical direction, but this is only an example, and this ratio can be changed according to the components to be installed and the peripheral components. For example, the ratio of the upper portion 131 to the lower portion 133 can be divided into 2:1 or 1:2.

[0175] As Figure 11 , Figure 13 and Figure 15D shown, the outer wall portion 131d of the upper portion 131 of the mounting member 130 is formed to protrude outward when viewed from the rear. In addition, the upper portion 131 is further divided into two regions, a front region 131a and a rear region 131b. And, the outer wall portion 131d of the front region 131a protrudes more outward than the outer wall portion 131d of the rear region 131b. Therefore, near the central portion of the upper portion 131, a stepped unevenness 131c is formed between the front region 131a and the rear region 131b. In addition, the upper wall portion 131e of the upper portion 131 forms an S-shaped when viewed from the side. And, a rib 139 is formed on the lower wall portion 131f of the upper portion 131.

[0176] By forming the upper portion 131 in this way, the rigidity of the mounting member 130 can be improved.

[0177] As Figure 11 and Figure 12 shown, the hinge bracket 108 is installed in the rear region 131b of the upper portion 131. As Figure 15B and Figure 15CAs shown, two mounting holes 132a for fixing the hinge bracket 108 by fastening members such as bolts are formed in the rear region 131b of the upper side portion 131. The mounting hole 108b formed at the lower end of the hinge bracket 108 is aligned with the mounting hole 132a of the mounting member 130 and fixed by a fastening member.

[0178] As Figure 11 and Figure 12 shown, a seat belt anchor 113 is mounted in the front region 131a of the upper side portion 131. As Figure 15B and Figure 15C shown, mounting holes 132b for fixing the seat belt anchor 113 by fastening members such as bolts and a locking hole 132c for engaging a hanging portion 113b provided at the lower end of the seat belt anchor 113 are formed in the front region 131a of the upper side portion 131. After hanging the hanging portion 113b of the seat belt anchor 113 on the locking hole 132c, the seat belt anchor 113 is fixed by aligning the mounting hole 113a of the seat belt anchor 113 with the mounting hole 132b of the mounting member 130 and tightening.

[0179] As Figure 11 and Figure 12 shown, a locking bracket 109 is mounted in the lower side portion 133 of the mounting member 130 in the front - rear direction. As Figure 14 , Figure 15B and Figure 15C shown, two mounting holes 133a for fixing the locking bracket 109 by fastening members such as bolts are formed in the lower side portion 133.

[0180] The locking bracket 109 is fixed to the mounting member 130 by aligning the mounting hole 109b of the locking bracket 109 with the mounting hole 133a of the mounting member 130 and tightening.

[0181] In addition, as Figure 14 shown, a rib 138 is formed between the two mounting holes 133a. The rigidity of the lower side portion 133 is increased by forming the rib 138.

[0182] By constructing the mounting member 130 in this way, the locking bracket 109 can be stably fixed to the lower side portion 133 with higher rigidity.

[0183] In addition, from Figure 12 and Figure 13As can be seen, when locking bracket 109 is attached to lower portion 133, it is generally retracted within upper portion 131. In other words, in upper portion 131 of mounting member 130, outer wall portion 131d, which protrudes outward, is located at the same vertical position as, or further outward from, the outer side portion of locking bracket 109. This configuration prevents locking bracket 109 from protruding from mounting member 130, allowing it to be stored in a compact space and more securely fixed.

[0184] In addition, if Figure 12 , Figure 15B and Figure 15C As shown, the dividing line DL that divides the upper portion 131 and the lower portion 133 of the mounting member 130 is inclined from the upper rear side toward the lower front side when viewed from the side. By arranging the mounting member 130 with the dividing line DL inclined, for example, the locking bracket 109 can be mounted compactly and efficiently. Furthermore, by tilting the mounting member 130 forward, the seatbelt anchor 113 mounted in the front region 131a can be pulled downward.

[0185] like Figures 15A - 15D As shown, a tongue piece 137 is provided on the rear lower side of the mounting member 130. Tongue piece 137 extends from the rear lower end of the lower portion 133, bends outward, and then folds back. A through-hole 137a is formed in the center of tongue piece 137. For example, a cable or wiring harness can be positioned by passing it through through-hole 137a. Providing tongue piece 137 on the rear lower side of the mounting member 130 in this manner further enhances the strength of the mounting member 130.

[0186] The vehicle seat SA of this embodiment has been described above using the accompanying drawings. Using the mounting member 130 provided on the vehicle seat SA, the hinge bracket 108, the seatbelt anchor 113, and the lock bracket 109 can be connected together. By connecting them together, the components related to the reclining mechanism (such as the hinge bracket 108) and their surrounding accessories are more compact than before, thereby making more space available. This also provides more space for routing cables, etc., preventing them from breaking. Furthermore, in this embodiment, the seatbelt anchor 113 securing the seatbelt 112 is installed in the front area 131a, but the seatbelt anchor 113 can be removed as needed.

[0187] <Third embodiment>

[0188] A third embodiment of the present invention will be described below with reference to the drawings. The third embodiment relates to a vehicle seat, particularly a vehicle seat in which transmission components such as cables and harnesses are arranged from a seat back to a seat cushion.

[0189] <Background Art>

[0190] In the past, in a vehicle seat, a structure in which a cable or other transmission member is covered by a tubular cover member installed between a seat backrest and a seat cushion has been well-known (for example, Japanese Utility Model Publication No. 59-105526). In the structure described in Japanese Utility Model Publication No. 59-105526, a stretching member is installed at at least one end of the tubular cover member, and when the seat backrest is reclined, the slack generated in the cover member is pulled into the seat cushion or the seat backrest side by the stretching member.

[0191] <Summary of the Invention>

[0192] <Problems to be Solved by the Invention>

[0193] In the invention disclosed in Japanese Utility Model Publication No. 59-105526, when the seat backrest is reclined, the cover member covering the transmission member is pulled in. Therefore, if the cover member catches on other components, it may sometimes hinder the reclining operation of the seat backrest. In addition, if the tubular cover member is exposed, it may sometimes cause a reduction in the commerciality of the appearance.

[0194] Therefore, in a vehicle seat in which the seat backrest is tilted forward, a structure is required in which the transmission member arranged from the seat backrest to the seat cushion does not hinder the reclining operation of the seat backrest, can operate smoothly, and the transmission member does not interfere with the frame or the like. In addition, a vehicle seat is required in which the transmission member does not protrude from the seat main body and has good appearance.

[0195] The third embodiment of the present invention is made in view of the above problems, and an object thereof is to provide a vehicle seat in which the transmission member of the vehicle seat does not hinder the reclining operation of the seat backrest, can operate smoothly, and suppresses interference with the frame or the like.

[0196] <Means for Solving the Problems>

[0197] The above problem is solved by the following means. A vehicle seat includes a seat cushion, a seat backrest connected to be able to adjust the angle with respect to the seat cushion, a tilt mechanism for adjusting the tilt angle of the seat backrest, a transmission member arranged from the seat backrest to the seat cushion, and a plurality of protection members provided near the tilt mechanism and provided on the seat backrest or the seat cushion and forming a space through which the transmission member is inserted.

[0198] According to the above vehicle seat, by inserting a transmission member such as a cable or a wire harness arranged from the seat backrest to the seat cushion into the space formed by the plurality of protection members, it is possible to protect it from interfering with or coming into contact with peripheral components such as the seat frame by the protection members, and it is possible to suppress poor operation caused by disconnection or the like.

[0199] In addition, in the above-described vehicle seat, it is preferable to include a wire support member, which is formed by the protection member among the plurality of protection members that is close to the tilting mechanism and is provided on the seat backrest, and the transmission member is clamped by the plurality of protection members thus formed.

[0200] According to the above configuration, it is possible to protect the transmission member from interfering with or coming into contact with peripheral components such as the tilting mechanism or the seat backrest frame, and it is possible to suppress poor operation caused by wire breakage or the like.

[0201] In the above-described vehicle seat, it is preferable that the wire support member has an opening portion that opens toward the seat cushion in the space where the transmission member is clamped, and the opening portion forms a groove shape extending in the front-rear direction of the vehicle seat when the seat backrest is in the upright state.

[0202] By forming the opening portion into a groove shape extending in the front-rear direction, it is possible to separate the transmission member in the front-rear direction and cause the transmission member to shake according to the reclining movement of the seat backrest.

[0203] In the above-described vehicle seat, it is preferable that the plurality of protection members constituting the wire support member each have a wall portion and a plurality of connecting portions protruding from the wall portion, and the plurality of protection members are combined by the connecting portions, and the groove-shaped opening portion is formed by the wall portion and the connecting portions.

[0204] By forming the groove-shaped opening portion by the wall portions and the plurality of connecting portions of the plurality of protection members, it is possible to easily form the groove-shaped opening portion and clamp the transmission member by the protection members, and at the same time, it is possible to separate the transmission member in the groove-shaped opening portion and cause the transmission member to shake according to the reclining movement of the seat backrest.

[0205] In the above-described vehicle seat, it is preferable that among the plurality of protection members constituting the wire support member, the engaging portion provided on one of the plurality of connecting portions that are connected to each other is engaged with the engaged portion provided on the other to be combined.

[0206] According to this configuration, it is possible to easily combine the respective protection members, suppress an increase in the number of parts, assembly man-hours, and weight, and it is possible to easily protect the transmission member.

[0207] In the above-described vehicle seat, it is preferable that the wire support member has an insertion hole through which the transmission member is inserted from the seat backrest formed by the plurality of connecting portions and is connected to the opening portion, and the opening portion is formed in a shape that opens 180 degrees in the front-rear direction of the vehicle seat with the outlet of the insertion hole as the center.

[0208] According to this configuration, when the seat back is reclined, the wall portion of the protection member protects the transmission member in the left - right direction while suppressing the left - right movement of the transmission member. In addition, since the opening opens 180 degrees in the front - rear direction, the transmission member can be smoothly bent in the front - rear direction.

[0209] In the above - mentioned vehicle seat, it is preferable that the transmission member is not fixed by the plurality of protection members constituting the wire support member.

[0210] Since the transmission member is not fixed by the plurality of protection members, the transmission member is not restricted within the space formed by the protection members and can move freely. Therefore, the transmission member does not hinder the reclining operation of the seat back.

[0211] In the above - mentioned vehicle seat, it is preferable to include a cover member constituted by the protection members among the plurality of protection members that are close to the tilt mechanism and are provided on the rear side of the seat cushion, and the transmission member arranged on the seat cushion side is inserted through the space formed by the plurality of protection members of the cover member.

[0212] By providing a cover member constituted by the protection members provided on the rear side of the seat cushion, it is possible to suppress interference or contact with the peripheral members arranged on the seat cushion side, and suppress the malfunction caused by wire breakage or the like.

[0213] In the above - mentioned vehicle seat, it is preferable that the plurality of protection members constituting the cover member include a tilt inner cover covering the inner part of the tilt mechanism, a seat cushion bottom cover covering the lower surface of the seat cushion, and a cushion cover.

[0214] Suppress interference or contact with components such as the tilt mechanism or the seat cushion frame, and protect the transmission member. Accordingly, it is possible to suppress the malfunction caused by wire breakage or the like.

[0215] In the above - mentioned vehicle seat, it is preferable that the transmission member inserted through the space of the cover member is clamped by the seat back skin decorative cover and the seat cushion skin decorative cover.

[0216] By being clamped by the seat back skin decorative cover and the seat cushion skin decorative cover, interference or contact with peripheral members such as the frame is suppressed, and the transmission member can be protected. Accordingly, it is possible to suppress the malfunction caused by wire breakage or the like.

[0217] Furthermore, the aforementioned problem is solved by the following means: a passenger seat comprising a seat cushion, a seat back connected to the seat cushion so as to be adjustable in angle, and a reclining mechanism for adjusting the reclining angle of the seat back, the seat back comprising a transmission member arranged from the seat back to the seat cushion, a plurality of protection members disposed on the seat back or the seat cushion near the reclining mechanism and forming a space through which the transmission member is inserted, a seat back-side fixing portion securing the transmission member to a position on the seat back near the reclining mechanism, and a seat cushion-side fixing portion securing the transmission member to a position on the seat cushion near the reclining mechanism. When the seat back is in a state in which the seat cushion is tilted toward the seat cushion, the transmission member is arranged so as to bend in an L-shape in a bottom view in the space between the seat back-side fixing portion and the seat cushion-side fixing portion.

[0218] Since the transmission member is arranged to be curved in an L-shape when viewed from below, the transmission member bends in the front-back direction when the seat back is tilted down. Therefore, the transmission member does not hinder the tilting movement of the seat back, and the transmission member can be bent or moved smoothly.

[0219] Furthermore, in the above-mentioned vehicle seat, it is preferable that a bending angle of the transmission member from the seat back side fixing portion to the seat cushion side fixing portion in a side view changes in accordance with a tilt angle of the seat back.

[0220] By changing the bending angle of the transmission member in accordance with the tilting angle of the seat back, the transmission member does not hinder the tilting movement of the seat back, and the load on the transmission member can be reduced.

[0221] <Effects of the Invention>

[0222] According to the vehicle seat of the present invention, the transmission member arranged from the seat back to the seat cushion can be protected from interference or contact with surrounding members such as the seat frame, and malfunction due to wire breakage can be suppressed.

[0223] Furthermore, by providing a wire support member composed of multiple protection members near the reclining mechanism, it is possible to protect it from interference or contact with surrounding components such as the reclining mechanism and the seat back frame, and to suppress malfunctioning of the movement due to wire breakage or the like.

[0224] Furthermore, by forming the opening into a groove shape extending in the front-rear direction, the transmission member can be separated in the front-rear direction, and the transmission member can be rocked in accordance with the movement of falling down the seat back.

[0225] In addition, by forming a groove-shaped opening part with the wall parts and the plurality of connecting parts of the plurality of protection parts, it is possible to easily form the groove-shaped opening part and clamp the transmission part with the protection parts. At the same time, the transmission part can be separated at the groove-shaped opening part, and the transmission part can be shaken according to the action of tilting the seat back.

[0226] In addition, by fitting the engaging parts provided on the plurality of protection parts with the engaged parts to connect, it is possible to easily combine the respective protection parts, suppress an increase in the number of parts, assembly man-hours, and weight, and easily protect the transmission part.

[0227] In addition, by forming the opening part into a shape that opens 180 degrees in the front-rear direction, when the seat back is laid down, the transmission part is protected in the left-right direction by the wall part of the protection part, and at the same time, the left-right movement of the transmission part is suppressed. In addition, since the opening part opens 180 degrees in the front-rear direction, the transmission part can be smoothly bent in the front-rear direction.

[0228] Since the transmission part is not fixed by the plurality of protection parts, the transmission part is not restricted in the space formed by the protection parts and can move freely. Therefore, the transmission part does not hinder the action of laying down the seat back.

[0229] By providing a cover part constituted by protection parts provided at the rear side of the seat cushion, it is possible to suppress interference or contact with peripheral parts arranged on the seat cushion side such as the seat cushion frame, and protect the transmission part. And it is possible to suppress the malfunction caused by wire breakage or the like.

[0230] In addition, since the plurality of protection parts constituting the cover part include an inclined inner cover, a seat cushion bottom cover, and a cushion cover, it is possible to suppress interference or contact with peripheral parts such as the tilting mechanism and the seat cushion frame, and protect the transmission part. Accordingly, it is possible to suppress the malfunction caused by wire breakage or the like.

[0231] In addition, by clamping the transmission part between the seat back skin decorative cover and the seat cushion skin decorative cover, it is possible to suppress interference or contact with the seat back frame, the seat cushion frame, etc., and protect the transmission part. Accordingly, it is possible to suppress the malfunction caused by wire breakage or the like.

[0232] In addition, by arranging the transmission part in a manner that it bends in an L shape when viewed from below, when the seat back is laid down, the transmission part bends in the front-rear direction. Therefore, the transmission part does not hinder the action of laying down the seat back, and the transmission part can be smoothly bent or moved.

[0233] By changing the bending angle of the transmission part corresponding to the tilting angle of the seat back, the transmission part does not hinder the action of laying down the seat back, and the load on the transmission part can be reduced.

[0234] <Detailed Embodiment>

[0235] Hereinafter, with reference to the drawings, the configuration of the vehicle seat related to the third embodiment of the present invention will be described. However, the embodiments described below are merely examples for facilitating the understanding of the present invention and do not limit the present invention. That is, without departing from its gist, the present invention includes its equivalents while being modified and improved.

[0236] In addition, in the following description, the content related to the material, shape, and size of the seat component parts is merely a specific example and does not limit the present invention.

[0237] Furthermore, in the following description, the vehicle seat SB mounted on a vehicle is taken as an example of the vehicle seat and its configuration example will be described. However, the present invention is not limited to the vehicle seat mounted on a vehicle such as an automobile or a train that has wheels and travels on the ground. For example, it can also be applied to seats mounted on aircraft, ships, etc. that move other than on the ground.

[0238] In addition, in the following description, the "front-rear direction" is the front-rear direction of the vehicle seat SB and is the same as the traveling direction of the vehicle when it is running. In addition, the "seat width direction" is the transverse width direction of the vehicle seat SB (in other words, the width direction of the seat main body) and is the same as the left-right direction as seen by a passenger sitting on the vehicle seat SB. In addition, the "up-down direction" is the up-down direction of the vehicle seat SB and is the same as the vertical direction when the vehicle is traveling on a horizontal plane.

[0239] In addition, the "outer side of the vehicle" in the seat width direction indicates the side closer to the outer side of the vehicle body (simply put, the side closer to the nearest door), and the "inner side of the vehicle" indicates the side closer to the inner side of the vehicle body (simply put, the side farther from the nearest door).

[0240] In addition, in the following description, unless otherwise specified, "rotation" means a rotational movement centered on an axis along the seat width direction.

[0241] Furthermore, regarding the shape, position, posture, etc. of each part of the vehicle seat SB described below, unless otherwise specified, the situation when the vehicle seat SB is in the seated state described later is assumed for the description.

[0242] <Vehicle Seat SB>

[0243] Refer to Figure 16 The basic configuration of the vehicle seat SB related to the third embodiment will be described. Figure 16 is a perspective view of the vehicle seat SB. For the convenience of illustration, it is shown in a configuration with the cushion cover TB or the seat cushion PB removed. Figure 16Part of the vehicle seat SB is illustrated.

[0244] The vehicle seat SB is a seat placed on the vehicle body floor and on which a passenger of the vehicle sits. In the third embodiment, the vehicle seat SB is used as a rear seat corresponding to the rear seats of the vehicle. However, it is not limited thereto, and the vehicle seat SB can also be used as a front seat, and can also be used as an intermediate seat in the second row or a rear seat in the third row in a vehicle having three rows of seats in the front-rear direction.

[0245] In Figure 16 In the configuration shown, the vehicle seat SB has a left seat SBa arranged on the left side, a right seat SBb arranged on the right side, and an intermediate seat SBC provided between them. The intermediate seat SBC is provided with a movable armrest and its storage box. The seat back 201 of the left seat SBa and the intermediate seat SBC are formed integrally and configured to fall forward. The right seat SBb has substantially the same configuration as the left seat SBa. Therefore, the following description will focus on the configuration of the left seat SBa of the vehicle seat SB.

[0246] As Figure 16 shown, the left seat SBa mainly includes a seat back 201 as a backrest portion that supports the back of the seated person, a seat cushion 202 as a seating portion that supports the buttocks of the seated person, and a headrest 203 arranged on the upper part of the seat back 201 that supports the head of the seated person. The seat back 201 and the seat cushion 202 are connected in a manner that sandwiches an inclination mechanism 207 described later. The seat back 201 is connected in a manner that rotates relative to the seat cushion 202 and can adjust the angle. The inclination mechanism 207 adjusts the inclination angle of the seat back. In addition, the inclination mechanism 207 is covered by an inclination outer cover 241 on the outside. In addition, it is covered by an inclination inner cover 242 on the inside.

[0247] As Figure 18 shown, a seat frame FB is provided in the left seat SBa. The seat frame FB is composed of a seat back frame 210 as the frame of the seat back 201 and a seat cushion frame 220 as the frame of the seat cushion 202.

[0248] The seat back frame 210 as a whole forms a square frame shape. The seat back frame 210 includes backrest side frames 211 arranged on both sides and a backrest panel 216 arranged therebetween (refer to Figure 21 ).

[0249] The seat cushion frame 220 also forms a square frame shape, and cushion side frames 221 are provided on its sides. In addition, it has a front connecting frame (not shown) that connects the cushion side frames 221 in the front and a rear connecting frame 223 that connects them in the rear (refer to Figure 21 ).

[0250] The seat back 201 and the seat cushion 202 are formed by disposing a seat cushion PB and a cushion decorative cover TB (cushion cover) on the outer sides of the seat back frame 210 and the seat cushion frame 220. The seat cushion PB is a polyurethane base material formed by foaming molding using, for example, polyurethane foam material, and the cushion decorative cover TB is made of a skin material such as cloth, synthetic leather, or genuine leather.

[0251] In addition, a tilt mechanism 207 is provided between the rear end portion of the seat cushion 202 and the lower end portion of the seat back 201. More specifically, the tilt mechanism 207 connects the seat back frame 210 of the seat back 201 and the cushion side frame 220 of the seat cushion 202. The tilt mechanism 207 can adjust the angle of the seat back 201 (seat back frame 210) relative to the seat cushion 202 (seat cushion frame 220). The seat back 201 can be locked at a specific angle and maintained in a tilted state by the tilt mechanism 207. In addition, by releasing this lock, the seat back 201 can be reclined forward or backward.

[0252] In addition, as Figure 16 and Figure 17 shown, a sliding guide rail 204 is provided at the lower part of the vehicle seat SB. Through this sliding guide rail 204, the vehicle seat SB is mounted on the vehicle body floor in a state where it can slide in the front - rear direction.

[0253] The sliding guide rail 204 is a component that enables the left - hand seat SBa and the middle seat SBc or the right - hand seat SBb to slide in the front - rear direction, and is a well - known structure (the structure of a common sliding guide rail mechanism). The sliding guide rail 204 has a bottom rail fixed to the vehicle body floor and an upper rail that can move relative to the bottom rail. The upper rail can slide relative to the bottom rail fixed to the vehicle body floor. The sliding guide rail 204 has a locking mechanism for locking the sliding movement of the vehicle seat SB. The locking mechanism can be released by pulling up, for example, a lever 215 provided on the shoulder of the left - hand seat SBa. The lever 215 and the locking mechanism are connected by a cable 213, and the operating force is transmitted through the cable 213 to release the locked state of the sliding guide rail 204. As Figure 16 and Figure 18 shown, the cable 213 is arranged inside from the seat back 201 to the seat cushion 202.

[0254] In addition, an airbag device 208 is provided on the side of the vehicle seat SB. The airbag device 208 is electrically connected through an engine control unit (ECU) and a wiring harness 214 (not shown). The wiring harness 214 is a bundle of electric wires for power supply and signal communication. Similar to the cable 213, in order to connect the airbag device 208 and the ECU, it is arranged from the seat backrest 201 to the seat cushion 202. In addition, the wiring harness 214 is not limited to the airbag device 208, and can also be arranged to connect lighting provided on the seat backrest 201 or an electric motor for automatically reclining or erecting the seat backrest 201. In this application, the cable 213 or the wiring harness 214 arranged from the seat backrest 201 to the seat cushion 202 is sometimes collectively referred to as a transmission component.

[0255] In past vehicle seats, the cable or wiring harness arranged from the seat backrest to the seat cushion was exposed outward at the connection part between the seat backrest and the seat cushion. Or, it was covered by a tubular component disclosed in Patent Document 1. Therefore, when reclining the seat backrest, sometimes the cable or the tubular component covering the cable would contact and get caught by other components, and sometimes the cable would hinder the reclining movement of the seat backrest. In addition, sometimes a part of the cable would be exposed to the rear.

[0256] In the vehicle seat SB according to the third embodiment, a plurality of protection components are provided on the seat backrest 201 or the seat cushion 202 close to the tilt mechanism 207. And by inserting the cable 213 or the wiring harness 214 into the space formed by the plurality of provided protection components, mutual interference or contact with the surrounding components inside the seat is suppressed. More specifically, as Figure 18 shown, the wire support component 230 provided at the lower end of the seat backrest frame 210 and Figure 21 shown, the cover component 240 provided at the rear of the seat cushion frame 220 are used to protect transmission components such as the cable 213 and the wiring harness 214.

[0257] <Wire support component>

[0258] The Figures 18 - 20B wire support component 230 will be described. The wire support component 230 is a component provided on the seat backrest 201 close to the tilt mechanism 207. The wire support component 230 is composed of a first support component 231 and a second support component 232 as protection components. The wire support component 230 forms an insertion hole 234 and an opening 233 as a space R1 for inserting the cable 213, etc. through the first support component 231 and the second support component 232. The cable 213 and the wiring harness 214 inserted into the space R1 are protected by clamping them with the first support component 231 and the second support component 232.

[0259] The wire support member 230 is mounted on the seat back frame 210 of the seat back 201 via a mounting bracket 235. More specifically, as Figure 18 shown, the lower end of the back side frame 211 of the seat back frame is mounted on the opposite side of the reclining mechanism 207. The wire support member 230 supports the cable 213 and the wire harness 214 extending from the seat back 201 by clamping them with a first support member 231 and a second support member 232.

[0260] An opening 233 through which the cable 213 etc. is exposed to the seat cushion 202 is formed in the space R1 formed by the first support member 231 and the second support member 232. As Figure 18 shown, the opening 233 forms a groove extending in the front-rear direction of the vehicle seat SB when the seat back 201 is in the upright state. Since the opening 233 forms a groove shape, the clamped cable 213 and wire harness 214 can be separated in the front-rear direction, and the cable 213 and wire harness 214 can be rocked back and forth according to the reclining movement of the seat back 201.

[0261] Figure 20A and Figure 20B are perspective views showing the first support member 231 and the second support member 232 of the wire support member 230 respectively. The first support member 231 and the second support member 232 each have a wall portion 231a, 232a which is a wall portion of the space R1 through which the cable 213 etc. is inserted. In addition, a plurality of connecting portions 231b, 232b which project from the wall portions 231a, 232a and connect the first support member 231 and the second support member 232 are provided. By combining the connecting portions 231b, 232b provided on the first support member 231 and the second support member 232 respectively, the whole is formed as the wire support member 230.

[0262] As Figure 20A shown, a concave portion 231c (an example of a portion to be engaged) is formed in the connecting portion 231b of the first support member 231, and the concave portion 231c is in a slit shape extending upward from the lower surface of the connecting portion 231b. In addition, as Figure 20B shown, a convex portion 232c (an example of an engaging portion) is formed in the connecting portion 232b of the second support member 232, and the convex portion 232c is formed to extend upward from the lower surface. By sliding the second support member 232 upward from the lower surface toward the first support member 231, the concave portion 231c is engaged with the convex portion 232c, and thus the second support member 232 is combined with the first support member 231.

[0263] In addition, the method of fixing the first support member 231 and the second support member 232 by fitting the concave portion 231c and the convex portion 232c is only an example. It is also possible to provide a convex portion on the first support member 231 and form a concave portion on the second support member 232. It is also possible to form a plurality of convex portions or concave portions on the connecting portions 231b and 232b respectively. Additionally, it is also possible not to form concave or convex portions on the first support member 231 and the second support member 232, and fix them by applying an adhesive to the mutually abutting surfaces. Additionally, it is also possible to use screws or resin clips, etc. for fixing.

[0264] By combining the second support member 232 with the first support member 231, a space R1 in an inverted T shape when viewed from the side is formed between the first support member 231 and the second support member 232 in the wire support member 230. As Figures 18 - 20B shown, the cable 213 or the wire harness 214 extending from the seat back 201 first passes through the insertion hole 234 and then passes through the slot-shaped opening 233. Additionally, from Figure 20A and Figure 20B it can be seen that the slot-shaped opening 233 is formed in such a way that it opens 180 degrees in the front-rear direction (horizontal direction) from the exit of the insertion hole 234 with the insertion direction (arrow A direction) of the cable 213 and the wire harness 214 shown by the dotted line as the center.

[0265] Moreover, the first support member 231 and the second support member 232 constituting the wire support member 230 do not directly fix the cable 213 and the wire harness 214. Therefore, at the portion of the insertion hole 234, the cable 213 and the wire harness 214 are restricted from moving in the front-rear direction and the left-right direction by the wall portions 231a, 232a and the connecting portions 231b, 232b, and can move freely in the longitudinal direction.

[0266] In addition, in the formation of the slot-shaped opening 233, the cable 213 and the wire harness 214 are restricted from moving in the left-right direction by the wall portions 231a, 232a, and the movement in the front-rear direction is not restricted. Therefore, even if the seat back 201 is reclined, the cable 213 and the wire harness 214 can freely bend in the front-rear direction in the opening 233. That is, the cable 213 and the wire harness 214 can be shaken in the front-rear direction according to the reclining movement of the seat back 201. Additionally, since they are protected by the wall portions 231a, 232a of the first support member 231 and the second support member 232 in the left-right direction, it is possible to suppress interference or contact with the surrounding components in the seat, such as the backrest side frame 211 or the reclining mechanism 207. Accordingly, it suppresses malfunction caused by wire breakage, etc., and at the same time suppresses hindrance to the reclining movement of the seat back 201.

[0267] The wire support member 230 is fixed to the opposite side of the reclining mechanism 207 at the lower end portion of the backrest side frame 211 by the mounting bracket 235. As Figure 18As shown, a backrest side frame 211 is fixed to the upper end of the mounting bracket 235. The cross-section of the mounting bracket 235 forms an L shape, and at the lower end, it has a flange portion 235b and a wrist portion 235a extending rearward. A plurality of fixing members 239 are used to fix the wire support member 230 to the mounting bracket 235. A through-hole 235c is formed in the flange portion 235b, and a cross rib arch 239b ( Figure 19 ) provided inside the first support member 231 is inserted and hooked by a claw portion 239a. Also, a resin clip 239c is inserted through holes in the wrist portion 235a of the mounting bracket 235 and holes formed in the side portion of the first support member 231 and fixed.

[0268] A cable fixing portion 251 is provided on the mounting bracket 235 as a seat back side fixing portion, and the cable fixing portion 251 holds the cable 213 along the backrest side frame 211. In addition, a first clip 252 for holding the wire harness 214 is provided on the side portion of the mounting bracket 235 as a seat back side fixing portion.

[0269] <Cover member>

[0270] The Figures 21 - 23 cover member 240 of the third embodiment will be described. The cover member 240 is a member composed of a plurality of protection members, and the plurality of protection members are disposed near the tilting mechanism 207 and on the rear side of the seat cushion 202. More specifically, the cover member 240 has a tilting inner cover 242, a seat cushion bottom cover 243, and a cushion decorative cover TB as protection members, and the cable 213 and the wire harness 214 are inserted through a space R2 formed by them. The cable 213 and the wire harness 214 are protected by the tilting inner cover 242, the seat cushion bottom cover 243, and the cushion decorative cover TB.

[0271] The tilting inner cover 242 is a member that covers the inner portion of the tilting mechanism 207 and a part of the seat cushion frame 220. More specifically, as Figure 22 shown, the tilting inner cover 242 has a tilting mechanism cover portion 242a that covers the inner side of the tilting mechanism 207 and a cushion frame cover portion 242b that covers the rear connecting frame 223 of the seat cushion frame 220.

[0272] The seat cushion bottom cover 243 is a member that covers the bottom surface of the seat cushion 202. As Figure 23As shown, the seat cushion bottom cover 243 has a cushion bottom cover portion 243a that covers the lower surface of the seat cushion 202 and a cushion rear cover portion 243b that covers the rear portion of the seat cushion 202. The cushion rear cover portion 243b forms a curved surface corresponding to the shape of the rear portion of the seat cushion 202, and a concave shape is further formed in the portion for accommodating the cable 213 and the like. When the seat cushion bottom cover 243 is installed on the seat cushion 202, it is configured such that a space R2 for inserting the cable 213 and the wire harness 214 is formed between the seat cushion bottom cover 243 and the cushion frame cover portion 242b. By forming the space R2, it is possible to prevent the cable 213 and the wire harness 214 clamped between the tilt mechanism cover portion 242a and the seat cushion frame 220 from interfering with or contacting the seat cushion frame 220. In addition, the cable 213 and the wire harness 214 are not visible from the outside. Further, when the seat back 201 is reclined, the cushion rear cover portion 243b presses the cable 213 and the wire harness 214 to prevent them from flying out from the rear of the seat cushion 202, thereby protecting the cable 213 and the wire harness 214.

[0273] Figure 24A and Figure 24B FIG. is a diagram showing the arrangement state of the cable 213 and the wire harness 214 in a state where the seat back 201 is upright. In addition, in order to make the arrangement state of the cable 213 and the wire harness 214 easy to understand, the seat cushion bottom cover 243 is removed for illustration.

[0274] As Figure 24A and Figure 24B shown, the cable 213 and the wire harness 214 arranged from the opening 233 of the wire support member 230 to the seat cushion 202 extend rearward (in the direction of arrow D) and then are arranged in the width direction (in the direction of arrow C). As shown in the figure, the cable 213 and the wire harness 214 extending from the wire support member 230 are clamped by the seat back skin trim cover 244 and the seat cushion skin trim cover 245 extending from the lower end of the seat back 201. Accordingly, interference or contact with surrounding components is suppressed.

[0275] As Figure 24B shown, a slit opening 246 through which the cable 213 and the like are exposed to the outside is formed by the seat back skin trim cover 244 and the seat cushion skin trim cover 245. The slit opening 246 is held by the wall portions 231a and 232a of the wire support member 230. Therefore, the slit opening 246 and the cable 213 and the like passing through the slit opening 246 do not deviate toward the inside of the vehicle seat SB. For example, a certain space (the elevator area 209) can be ensured at the upper part of the rear connecting frame (refer to Figure 25C ).

[0276] The seat back skin trim cover 244 is a part of the cushion trim cover TB of the seat back 201 and extends from its lower end. The seat cushion skin trim cover 245 is a part of the cushion trim cover TB of the seat cushion 202 and extends from its rear end. The components of the seat back skin trim cover and the seat cushion skin trim cover in contact with the cable 213 and the wire harness 214 are made of non-woven fabric without a seat cushion. By making the part in contact with the cable 213 and the wire harness 214 of non-woven fabric, the generation of noise caused by contact can be suppressed. In addition, by making the contact part of non-woven fabric, the resistance generated when the cable 213 and the wire harness 214 move can be reduced, and the hindrance to the reclining movement of the seat back 201 can be suppressed.

[0277] The arrangement state of the cable 213 and the wire harness 214 on the seat cushion 202 side will be described. As described above, the seat cushion frame 220 of the seat cushion 202 has a pair of cushion side frames 221 provided on both side portions, a front connecting frame (not shown) connecting them, and a rear connecting frame 223. The cable 213 on the seat cushion 202 side is arranged to extend in the width direction (arrow C direction), as Figure 24A and Figure 24B shown, and is fixed using the second clip 253 (seat cushion side fixing part), and the second clip 253 is attached to a bracket 225 extending forward from the rear connecting frame 223. In addition, the wire harness 214 arranged on the seat cushion 202 side also extends in the width direction and is fixed using the third clip 254 (seat cushion side fixing part), and the third clip 254 is arranged on the bracket 225 at a position different from the second clip 253.

[0278] On the other hand, as described above, the cable 213 arranged on the seat back 201 side is fixed by the cable fixing part 251 of the mounting bracket 235 so as to extend in the width direction (arrow C direction) along the backrest side frame 211. The wire harness 214 is fixed by the first clip 252 of the mounting bracket 235 so as to extend in the width direction (arrow C direction) along the backrest side frame 211,

[0279] Figures 25A - 25C FIG. is a view of the vehicle seat SB in a state where the seat back 201 is reclined forward as seen from the rear, showing the arrangement state of the cable 213 and the wire harness 214. In addition, in order to make the arrangement state easy to understand, the seat cushion bottom cover 243 is removed for display.

[0280] In a state where the seat back 201 is reclined forward, the cable 213 arranged in the seat back 201 part is arranged to extend forward (arrow B direction) of the vehicle seat SB through the cable fixing part 251 of the mounting bracket 235. In addition, the wire harness 214 is arranged to extend forward (arrow B direction) of the vehicle seat SB by the first clip 252.

[0281] Therefore, in the space from the cable fixing portion 251 of the mounting bracket to the second clip 253 of the seat cushion, the cable 213 is arranged in a shape bent like an L when viewed from below. Further, in a state where the seat back 201 is tilted forward, the wire harness 214 arranged in the seat back 201 portion is also arranged through the first clip 252 of the mounting bracket 235 so as to extend forward of the vehicle seat SB.

[0282] Therefore, the wire harness 214, like the cable 213, is arranged in the space from the first clip 252 of the mounting bracket 235 to the third clip 254 of the seat cushion 202 in a shape bent like an L when viewed from below.

[0283] In this way, the cable 213 and the wire harness 214 are bent into an L shape by the cable fixing portion 251, the first clip 252, the second clip 253, and the third clip 254. Thus, when the seat back 201 is tilted, they can be bent or moved smoothly. Therefore, it is possible to prevent the cable 213 and the wire harness 214 from hindering the tilting operation of the seat back 201.

[0284] That is, by bending the cable 213 and the wire harness 214 into an L shape when viewed from below, when viewed from the side of the vehicle seat SB, the cable 213 and the wire harness 214 arranged on the seat back 201 correspond to the tilt angle of the seat back 201, and their bending changes accordingly. By bending the cable 213 and the wire harness 214 according to the tilt angle of the seat back 201, the cable 213 and the wire harness 214 arranged on the seat back 201 do not sway in the width direction and do not hinder the tilting operation of the seat back 201. Further, it is possible to prevent the cable 213 and the wire harness 214 from being bent excessively, thereby reducing the load on the cable 213 and the wire harness 214.

[0285] In addition, when the vehicle seat SB is carried into the vehicle, a fork (lifting portion) of a lift is inserted into the upper space (lift area 209, refer to Figure 25C ) of the rear connecting frame 223 of the seat cushion 202. Since the fork is inserted, it is possible to prevent the cable 213 or the wire harness 214 from being broken, and they are not usually arranged in the lift area 209. Further, it is also prohibited for the cable 213 and the wire harness 214 to sway in the lift area 209.

[0286] When the wire support member 230 and the cover member 240 according to the third embodiment are used, it is possible to prevent the cable 213 and the wire harness 214 from swaying in the lift area 209, thereby preventing the cable from being broken by the fork of the lift.

[0287] Further, as Figure 21As shown, the cable 213 and the wire harness 214 arranged on the side of the seat cushion 202 are protected by a cushion rear cover portion 243b erected at the rear portion of the seat cushion bottom cover 243. Therefore, when the seat backrest 201 is reclined, the cable 213 and the wire harness 214 extending from the seat backrest 201 abut against the cushion rear cover portion 243b, restricting exposure to the outside. Since the cable 213 and the wire harness 214 do not protrude to the rear of the vehicle seat SB even when the seat backrest 201 is reclined and are not visible from the outside, the commerciality of the appearance is improved.

[0288] As described above, the vehicle seat SB of the third embodiment has been described with reference to the drawings. In addition, the wire support member 230 and the cover member 240 provided on the left seat of the vehicle seat SB have been described, and wire support members 230 and cover members 240 having the same configuration are also provided on the right seat SBb. In addition, the vehicle seat SB includes two components, namely, the wire support member 230 provided on the seat backrest 201 and the cover member 240 provided on the seat cushion 202, but either one can be used to protect the cable 213 and the wire harness 214.

[0289] Hereinafter, additional explanations will be given for the above-described second and third embodiments that have been disclosed.

[0290] (Additional Explanation 1)

[0291] A vehicle seat for a vehicle occupant having a seat main body and a seat belt, the seat main body having a seat cushion and a seat backrest and being fixed to the floor surface of the vehicle; the seat belt restraining a passenger to the seat main body, characterized in that:

[0292] It has a hinge member, a locking member, a seat belt anchor member, and a mounting member;

[0293] The hinge member is provided at an end of a hinge that rotatably connects the seat backrest to the seat cushion;

[0294] The locking member fixes the seat main body to the floor surface;

[0295] The seat belt anchor member fixes the seat belt to the seat main body;

[0296] The mounting member connects the hinge member, the locking member, and the seat belt anchor member together.

[0297] (Additional Explanation 2)

[0298] The vehicle seat for a vehicle occupant according to Additional Explanation 1, characterized in that:

[0299] The cross-section of the mounting member is formed in a hat shape.

[0300] (Additional Explanation 3)

[0301] The seat for a vehicle according to Additional Explanation 1 or 2, characterized in that:

[0302] The upper side portion of the mounting member is formed to protrude outward when viewed from the rear.

[0303] (Additional Explanation 4)

[0304] The seat for a vehicle according to Additional Explanation 3, characterized in that:

[0305] In the upper side portion of the mounting member, the front region is formed to protrude more outward than the rear region, and a stepped unevenness is formed between the front region and the rear region.

[0306] (Additional Explanation 5)

[0307] The seat for a vehicle according to any one of Additional Explanations 1 to 4, characterized in that:

[0308] The dividing line between the upper side portion and the lower side portion of the mounting member is inclined from the rear upper side to the front lower side when viewed from the side.

[0309] (Additional Explanation 6)

[0310] The seat for a vehicle according to any one of Additional Explanations 1 to 5, characterized in that:

[0311] The hinge member is fixed to the rear region of the upper side portion of the mounting member.

[0312] (Additional Explanation 7)

[0313] The seat for a vehicle according to any one of Additional Explanations 1 to 6, characterized in that:

[0314] The seat belt anchor bolt member is fixed to the front region of the upper side portion of the mounting member.

[0315] (Additional Explanation 8)

[0316] The seat for a vehicle according to any one of Additional Explanations 1 to 7, characterized in that:

[0317] The locking member is fixed to the lower side portion of the mounting member in the front-rear direction.

[0318] (Additional Explanation 9)

[0319] The seat for a vehicle according to Additional Explanation 8, characterized in that:

[0320] The outer wall portion that protrudes outwardly from the upper side portion of the mounting member is located more outwardly than the locking member fixed to the lower side portion of the mounting member.

[0321] (Additional Explanation 10)

[0322] The seat for a vehicle according to any one of Additional Explanations 1 to 9, characterized in that:

[0323] It has a tongue piece formed in a manner of bending outwardly at the lower side behind the mounting member.

[0324] (Additional Explanation 11)

[0325] A vehicle seat having a seat cushion, a seat backrest connected so as to be able to adjust the angle relative to the seat cushion, and a tilt mechanism for adjusting the tilt angle of the seat backrest, characterized in that:

[0326] It has a transmission member arranged from the seat backrest to the seat cushion;

[0327] A plurality of protection members that are close to the tilt mechanism and are provided on the seat backrest or the seat cushion and form a space through which the transmission member is inserted.

[0328] (Additional Explanation 12)

[0329] The vehicle seat according to Additional Explanation 11, characterized in that:

[0330] It is provided with a wire support member, which is composed of the protection members among the plurality of protection members that are close to the tilt mechanism and are provided on the seat backrest, and the transmission member is clamped by the formed plurality of protection members.

[0331] (Additional Explanation 13)

[0332] The vehicle seat according to Additional Explanation 12, characterized in that:

[0333] The wire support member has an opening portion that opens toward the seat cushion in the space where the transmission member is clamped, and the opening portion forms a groove shape extending in the front-rear direction of the vehicle seat when the seat backrest is in an upright state.

[0334] (Additional Explanation 14)

[0335] The vehicle seat according to Additional Explanation 13, characterized in that:

[0336] Each of the plurality of protective members constituting the line support member has a wall portion and a plurality of connecting portions protruding from the wall portion. The plurality of protective members are joined by the connecting portions, and the wall portion and the connecting portions form a trough-shaped opening portion.

[0337] (Additional Explanation 15)

[0338] The seat for a vehicle according to Additional Explanation 14, characterized in that:

[0339] The plurality of protective members constituting the line support member are joined by fitting an engaging portion provided on one of the plurality of connecting portions that are interconnected with a engaged portion provided on the other.

[0340] (Additional Explanation 16)

[0341] The seat for a vehicle according to Additional Explanation 15, characterized in that:

[0342] The line support member has an insertion hole through which the transmission member is inserted and connected to the opening portion from the seat backrest formed by the plurality of connecting portions.

[0343] The opening portion is formed in a shape that opens 180 degrees in the front-rear direction of the vehicle seat with the outlet of the insertion hole as the center.

[0344] (Additional Explanation 17)

[0345] The seat for a vehicle according to any one of Additional Explanations 12 to 16, characterized in that:

[0346] The transmission member is not fixed by the plurality of protective members constituting the line support member.

[0347] (Additional Explanation 18)

[0348] The seat for a vehicle according to Additional Explanation 11, characterized in that:

[0349] A cover member is provided, which is constituted by the protective members among the plurality of protective members that are close to the tilting mechanism and are provided on the rear side of the seat cushion.

[0350] The transmission member disposed on the seat cushion side is inserted through the space formed by the plurality of protective members of the cover member.

[0351] (Additional Explanation 19)

[0352] The seat for a vehicle according to Additional Explanation 18, characterized in that:

[0353] The plurality of protective members constituting the cover member include an inner tilt cover covering an inner portion of the tilt mechanism, a seat cushion bottom cover covering a lower surface of the seat cushion, and a cushion cover.

[0354] (Additional Explanation 20)

[0355] The vehicle seat according to Additional Explanation 19 is characterized in that:

[0356] The transmission member inserted through the space of the cover member is clamped by a seat back skin decorative cover and a seat cushion skin decorative cover.

[0357] (Additional Explanation 21)

[0358] A vehicle seat having a seat cushion, a seat back connected to be adjustable in angle relative to the seat cushion, and a tilt mechanism for adjusting the tilt angle of the seat back, characterized in that:

[0359] It includes a transmission member, a plurality of protective members, a seat back side fixing portion, and a seat cushion side fixing portion;

[0360] The transmission member is arranged from the seat back to the seat cushion;

[0361] The plurality of protective members are close to the tilt mechanism and are provided on the seat back or the seat cushion and form a space through which the transmission member is inserted;

[0362] The seat back side fixing portion fixes the transmission member at a position close to the tilt mechanism in the seat back;

[0363] The seat cushion side fixing portion fixes the transmission member at a position close to the tilt mechanism in the seat cushion;

[0364] When the seat back is in a state of falling forward toward the seat cushion side, the transmission member is arranged in a space between the seat back side fixing portion and the seat cushion side fixing portion and is bent in an L shape when viewed from below.

[0365] (Additional Explanation 22)

[0366] The vehicle seat according to Additional Explanation 21 is characterized in that:

[0367] When viewed from the side, the bending angle of the transmission member from the seat back side fixing portion to the seat cushion side fixing portion changes corresponding to the tilt angle of the seat back.

[0368] Symbol Explanation

[0369] <First Embodiment>

[0370] Vehicle seat (seat for a riding object)

[0371] Right seat

[0372] Left seat

[0373] Center seat

[0374] Seat frame

[0375] Vehicle body floor

[0376] Padding cover

[0377] Seat cushion

[0378] Seat backrest

[0379] Seat padding

[0380] Headrest

[0381] Sliding guide

[0382] Tilting mechanism

[0383] Seat backrest frame

[0384] Side frame of the backrest

[0385] Backrest panel

[0386] Seat padding frame

[0387] Side frame of the padding

[0388] Front connecting frame

[0389] Rear connecting frame

[0390] Disc frames 25A, 25B, 25C

[0391] Through hole

[0392] Reinforcing ribs 27A, 27B

[0393] Bottom part

[0394] Recess

[0395] Reinforcing brackets 30, 30A, 30B, 30C

[0396] Wall part

[0397] Joint part

[0398] Locking component mounting part

[0399] 35a notch

[0400] 35b, 35c mounting pieces

[0401] 37 bracket connecting member

[0402] 38 bracket connecting member

[0403] 40, 40A, 40B locking members

[0404] 41 claw portion

[0405] 42 linear member

[0406] <Second Embodiment>

[0407] SA vehicle seat (seat for an occupant)

[0408] SAa left seat

[0409] SAb middle seat

[0410] TA cushion cover

[0411] PA seat cushion

[0412] BFA vehicle body floor

[0413] SAh seat main body

[0414] FA seat frame

[0415] 101 seat back

[0416] 102 seat cushion

[0417] 103 headrest

[0418] 104 sliding guide rail

[0419] 105 bottom guide rail

[0420] 106 upper guide rail

[0421] 107 reclining mechanism

[0422] 107a hinge

[0423] 108 hinge bracket (hinge member)

[0424] 108a, 108b mounting holes

[0425] 109 locking bracket (locking member)

[0426] 109a, 109b mounting holes

[0427] 110 seat back frame

[0428] 111 Backrest side frame

[0429] 112 Seat belt

[0430] 112a Male buckle

[0431] 112b Female buckle

[0432] 113 Seat belt anchor (seat belt anchor component)

[0433] 113a Mounting hole

[0434] 113b Hanging part

[0435] 115 Tilt cover

[0436] 120 Seat cushion frame

[0437] 121 Cushion side frame

[0438] 123 Rear connecting frame

[0439] 130 Mounting component

[0440] 131 Upper part

[0441] 131a Front area

[0442] 131b Rear area

[0443] 131c Stepped unevenness

[0444] 131d Outer wall part

[0445] 131e Upper wall part

[0446] 131f Lower wall part

[0447] 132a, 132b Mounting holes

[0448] 132c Locking hole

[0449] 133 Lower part

[0450] 133a Mounting hole

[0451] 137 Tongue

[0452] 137a Through hole

[0453] 138, 139 Ribs

[0454] DL dividing line

[0455] <Third Embodiment>

[0456] SB Vehicle Seat (Seat for Occupant)

[0457] SBa Left Seat

[0458] SBb Right Seat

[0459] SBc Middle Seat

[0460] TB Padding Decorative Cover (Padding Cover)

[0461] PB Seat Cushion

[0462] 201 Seat Backrest

[0463] 202 Seat Padding

[0464] 203 Headrest

[0465] 204 Slide Rail

[0466] 207 Tilt Mechanism

[0467] 208 Airbag Device

[0468] FB Seat Frame

[0469] R1, R2 Space

[0470] 209 Lift Area

[0471] 210 Seat Backrest Frame

[0472] 211 Backrest Side Frame

[0473] 213 Cable (Transmission Component)

[0474] 214 Wiring Harness (Transmission Component)

[0475] 215 Rod

[0476] 216 Backrest Panel

[0477] 220 Seat Padding Frame

[0478] 221 Padding Side Frame

[0479] 223 Rear Connection Frame

[0480] 225 Bracket

[0481] 230 Line Support Component

[0482] 231 First Support Component (Protection Component)

[0483] 231a Wall Portion

[0484] 231b Connecting part

[0485] 231c Recessed part (engaged part)

[0486] 232 Second support member (protective member)

[0487] 232a Wall part

[0488] 232b Connecting part

[0489] 232c Protruding part (engaging part)

[0490] 233 Opening part

[0491] 234 Insertion hole

[0492] 235 Mounting bracket

[0493] 235a Arm part

[0494] 235b Flange part

[0495] 239 Fixing member

[0496] 239a Claw part

[0497] 239b Cross rib arch

[0498] 239c Resin clip

[0499] 240 Cover member

[0500] 241 Tilted outer cover

[0501] 242 Tilted inner cover (protective member)

[0502] 242a Tilt mechanism cover part

[0503] 242b Pad frame cover part

[0504] 243 Seat cushion bottom cover (protective member)

[0505] 243a Cushion bottom cover part

[0506] 243b Cushion rear cover part

[0507] 244 Seat back skin decorative cover (protective member)

[0508] 245 Seat cushion skin decorative cover (protective member)

[0509] 246 Slit opening

[0510] 251 Cable fixing part (seat back side fixing part)

[0511] 252 First Clip (Seat Back Side Fixing Portion)

[0512] 253 Second Clip (Seat Cushion Side Fixing Portion)

[0513] 254 Third Clip (Seat Cushion Side Fixing Portion)

Claims

1. A seat for a vehicle, characterized in that: Comprising A seat cushion; A seat cushion frame forming a skeleton of the seat cushion; A disc frame mounted front and rear across the seat cushion frame; A reinforcing bracket mounted on a lower portion of the disc frame to reinforce the disc frame; A locking member for fixing the seat cushion to a floor surface; The reinforcing bracket has a wall portion extending in an up and down direction and a joint portion joined to the disc frame at an upper end of the wall portion; The locking member is mounted on the wall portion of the reinforcing bracket.

2. The vehicle seat according to claim 1, characterized in that: The cross section of the reinforcing bracket forms a substantially L-shape and is arranged front and rear across the disc frame.

3. The vehicle seat according to claim 1 or 2, characterized in that: The reinforcing bracket is arranged around an outer side of the disc frame.

4. The vehicle seat according to claim 1, characterized in that: The reinforcing bracket is constituted by a pair of members arranged opposite to each other on both side portions in a left and right direction of the disc frame.

5. The vehicle seat according to claim 1, characterized in that: The joint portion is arranged more inward than the wall portion.

6. The vehicle seat according to claim 1, characterized in that: The locking member is mounted on an outer side of the wall portion of the reinforcing bracket.

7. The vehicle seat according to claim 1 or 6, characterized in that: The locking member is mounted on a portion where a lower edge of the wall portion is grooved.

8. The vehicle seat according to claim 1 or 6, characterized in that: The locking members are respectively provided on the reinforcing bracket constituted by a pair of members, and the pair of locking members are mounted at positions in the same front and rear direction opposite to each other on the reinforcing bracket.

9. The vehicle seat according to claim 1, characterized in that: The reinforcing bracket is fixed to connecting frames located in front and rear of the seat cushion frame.

Images