Seat cushion pad fixing structure

Abstract

To obtain a seat cushion pad fixing structure which can support a seat cushion pad in a stable state while securing a battery arrangement space at the seat lower side.SOLUTION: In a vehicle seat 10, a rear part 16A of a seat cushion pad 16 is located at the seat front side of a pipe frame 32 and a protruding part 28 is provided at the rear part 16A. The seat cushion frame 18 is provided with a through hole 38 with which the protruding part 28 may engage.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fixing structure for a seat cushion pad.

Background Art

[0002] In recent years, with the spread of electric vehicles and hybrid vehicles, a structure in which a battery is mounted below a seat has been increasingly adopted. However, when such a configuration is employed, while the fixing position of the seat moves upward to secure space for arranging the battery, the hip point is maintained. For this reason, in a configuration where the rear portion of the seat cushion pad is disposed above the pipe frame that constitutes the rear portion of the seat frame, it becomes difficult to secure the thickness of the seat cushion pad above the pipe frame, and it is conceivable that a part of the seat cushion pad may be damaged.

[0003] In this regard, it is also conceivable to adopt a configuration in which the rear end portion of the seat cushion pad is disposed in front of the pipe frame, as in the vehicle seat described in Patent Document 1 below.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, Patent Document 1 does not specifically disclose a structure for fixing the seat cushion pad, and the invention described in Patent Document 1 has room for improvement in terms of stably supporting the seat cushion pad.

[0006] In view of the above facts, an object of the present invention is to obtain a seat cushion pad fixing structure that can support the seat cushion pad in a stable state while securing a battery placement space below the seat.

Means for Solving the Problems

[0007] The seat cushion pad fixing structure according to the first aspect is provided with a locking portion provided at the rear portion located on the front side of the seat of a pipe frame that constitutes a part of the seat cushion frame on the rear side of the seat and supports the seat cushion pad, which constitutes a part of the seat cushion capable of supporting the buttocks and thighs of the occupant, and a locked portion provided on the seat cushion frame and capable of being locked by the locking portion.

[0008] According to the seat cushion pad fixing structure according to the first aspect, a seat cushion pad that constitutes a part of the seat cushion capable of supporting the buttocks and thighs of the occupant is provided, and a part of the seat cushion frame on the rear side of the seat that supports this seat cushion pad is constituted by a pipe frame.

[0009] By the way, when a vehicle adopts a structure in which a battery is mounted below the seat, while the fixed position of the seat moves upward to secure a space for arranging the battery, the hip point is maintained. For this reason, in a configuration where the rear part that constitutes the rear side of the seat cushion pad is arranged above the seat of the pipe frame, it becomes difficult to secure the thickness of the seat cushion pad above the seat of the pipe frame, and it is conceivable that a part of the seat cushion pad is damaged.

[0010] Here, in this aspect, the rear part of the seat cushion pad is located on the front side of the seat of the pipe frame, and a locking portion is provided at this rear part. Further, the seat cushion frame is provided with a locked portion capable of being locked by the locking portion.

[0011] Therefore, in this aspect, by locking the locking portion to the locked portion, the rear portion of the seat cushion pad can be stably supported with respect to the seat cushion frame on the front side of the seat of the pipe frame without arranging the rear portion on the upper side of the seat of the pipe frame. Accordingly, in this aspect, even if a space for arranging a battery is secured below the seat, it is possible to suppress a part of the seat cushion pad from being damaged.

[0012] The seat cushion pad fixing structure according to the second aspect further includes a support frame provided integrally with the seat cushion pad inside the rear portion in the seat cushion pad fixing structure according to the first aspect, and the locking portion is supported by the support frame and protrudes outward from the support frame toward the pipe frame side with respect to the seat cushion pad, and the locked portion is configured to be able to lock the protruding portion.

[0013] According to the seat cushion pad fixing structure according to the second aspect, a support frame is provided integrally with the seat cushion pad inside the rear portion of the seat cushion pad. That is, the support frame is in a state of being located on the front side of the seat of the pipe frame.

[0014] Then, in a state where the protruding portion is supported by the support frame, the protruding portion protrudes outward from the support frame toward the pipe frame side with respect to the seat cushion pad. On the other hand, the seat cushion frame is provided with a locked portion to which the protruding portion can be locked.

[0015] Therefore, in this aspect, the protruding portion can be locked to the locked portion in a state where the protruding portion is supported by the support frame, and during the locking operation of the protruding portion to the locked portion, it is easier for an operator to transmit a force to the protruding portion.

[0016] The seat cushion pad fixing structure according to the third aspect is the seat cushion pad fixing structure according to the first aspect or the second aspect, in which the locked portion is provided on the pipe frame.

[0017] According to the seat cushion pad fixing structure according to the third aspect, a locked portion is provided on a pipe frame that constitutes a part of the seat cushion frame, and a protruding portion provided on the seat cushion pad can be directly locked to the pipe frame.

[0018] The seat cushion pad fixing structure according to the fourth aspect is the seat cushion pad fixing structure according to the first aspect or the second aspect, wherein the seat cushion frame includes a front frame that constitutes a front portion of the seat, and a cushion spring portion spanned between the front frame and the pipe frame, and the locked portion is provided on a support portion that is located on the front side of the seat of the pipe frame and is provided integrally with the cushion spring portion.

[0019] According to the seat cushion pad fixing structure according to the fourth aspect, the seat cushion frame includes a front frame that constitutes a front portion of the seat, and a cushion spring portion spanned between the front frame and the pipe frame. Therefore, the occupant can be supported by the elastic force of the cushion spring portion.

[0020] And in this aspect, the support portion is provided integrally with the cushion spring portion, and this support portion is located on the front side of the seat of the pipe frame. And a locked portion is provided on the support portion. Therefore, in this aspect, while stably supporting the rear portion of the seat cushion pad with respect to the seat cushion frame, an increase in the number of parts due to the addition of parts provided with the locked portion can be suppressed.

[0021] The seat cushion pad fixing structure according to the fifth aspect is the seat cushion pad fixing structure according to the first aspect or the second aspect, wherein the seat cushion frame includes a cushion pan that supports the lower surface of the seat cushion pad, and the locked portion is provided on a rear portion of the seat of the cushion pan.

[0022] According to the seat cushion pad fixing structure according to the fifth aspect, the seat cushion frame includes a cushion pan, and the lower surface of the seat cushion pad can be supported by the cushion pan.

[0023] And in this aspect, a locked portion is provided at the rear portion of the seat of the cushion pan. For this reason, in this aspect, the rear portion of the seat cushion pad can be supported in a stable state with respect to the seat cushion frame without adding a member for providing the locked portion.

Advantages of the Invention

[0024] As described above, the seat cushion pad fixing structure according to the present invention has an excellent effect that the seat cushion pad can be supported in a stable state while securing a space for arranging a battery below the seat.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0026] <First Embodiment> Hereinafter, a first embodiment of the seat cushion pad fixing structure according to the present invention will be described with reference to FIG. 1. The arrows FR and UP appropriately shown in each figure indicate the forward direction and the upward direction of the "vehicle seat 10 (hereinafter referred to as the seat 10)" according to the present embodiment. Note that the seat 10 can also be used as a seat for vehicles such as trains, airplanes, and ships including automobiles.

[0027] As shown in FIG. 1, the seat 10 includes a "seat cushion 12" that supports the buttocks and thighs of the occupant, a seat back 14 that supports the back of the occupant, and a headrest (not shown) that supports the head of the occupant.

[0028] The seat cushion 12 includes a "seat cushion pad 16" that constitutes its main part and is made of urethane foam. This seat cushion pad 16 is supported from below the seat by a "seat cushion frame 18". Note that the seat cushion frame 18 is supported with respect to a vehicle body floor (not shown) via a guide rail or the like (not shown).

[0029] Specifically, a plurality of wires 20 and a plurality of "support frames 22" are embedded inside the seat cushion pad 16. The wires 20 extend in the front-rear direction of the seat, and are fixed to the skin portion 24 and the hog ring 26 that constitute the surface of the seat cushion 12 at a plurality of locations spaced apart in the front-rear direction of the seat.

[0030] The support frame 22 has a cylindrical shape extending in the seat width direction, and is provided integrally with the seat cushion pad 16 inside the "rear portion 16A" on the rear side of the seat and the front portion 16B on the front side of the seat in the seat cushion pad 16.

[0031] In addition, a plurality of "protrusions 28" serving as locking portions are provided on the support frame 22. The protrusion 28 protrudes from the support frame 22 and includes a head 28A whose cross-section becomes smaller when inserted into the through-hole and becomes larger after passing through the through-hole, and a shaft portion 28B extending from the head 28A toward the support frame 22 side.

[0032] Note that the protrusion 28 protrudes from the support frame 22 on the rear side of the seat, and the protrusion 28 protrudes from the support frame 22 on the front side of the seat in a state of protruding downward. Further, the protrusion 28 may be integrally formed with the support frame 22 or may be separate from the support frame 22 depending on the material of the support frame 22 and the protrusion 28.

[0033] On the other hand, the seat cushion frame 18 includes a "front frame 30" that constitutes the front portion of the seat, a "pipe frame 32" that constitutes the rear portion of the seat and is formed in a cylindrical shape extending in the seat width direction, and a plurality of "cushion spring portions 34" spanned between the front frame 30 and the pipe frame 32.

[0034] In addition, the rear portion of the plurality of cushion spring portions 34 in the seat width direction is integrally formed with the cushion spring portion 34 and is connected in the seat width direction by a resin "connection plate portion 36" having the seat width direction as its longitudinal direction. Note that a part of the skin portion 24 is locked to the lower end portion of the connection plate portion 36 via a hook (not shown). Further, the connection plate portion 36 is located on the front side of the seat of the pipe frame 32.

[0035] In addition, the outer end portion of the seat cushion frame 18 in the seat width direction and the outer end portion of the pipe frame 32 in the seat width direction are connected in the seat front-rear direction by a seat side frame (not shown) extending in the seat front-rear direction.

[0036] And, a plurality of "through portions 38" as locked portions are formed in the pipe frame 32, and the protruding portion 28 is locked in the through portion 38.

[0037] <Actions and Effects of this Embodiment> Next, the actions and effects of this embodiment will be described.

[0038] In this embodiment, a seat cushion pad 16 that constitutes a part of the seat cushion 12 capable of supporting the buttocks and thighs of an occupant is provided, and a part of the seat rear side of the seat cushion frame 18 that supports this seat cushion pad 16 is constituted by the pipe frame 32.

[0039] By the way, when a vehicle adopts a structure in which a battery is mounted below the seat, while the fixing position of the seat moves upward to secure a space for arranging the battery, the hip point is maintained. For this reason, in a configuration in which the rear portion 16A that constitutes the seat rear side of the seat cushion pad 16 is arranged on the seat upper side of the pipe frame 32, it becomes difficult to secure the thickness of the seat cushion pad 16 on the seat upper side of the pipe frame 32, and it is conceivable that a part of the seat cushion pad 16 is damaged.

[0040] Here, in this embodiment, the rear portion 16A of the seat cushion pad 16 is located on the seat front side of the pipe frame 32, and the protruding portion 28 is provided on this rear portion 16A. Further, the seat cushion frame 18 is provided with a through portion 38 to which the protruding portion 28 can be locked.

[0041] More specifically, an inner portion of the rear portion 16A of the seat cushion pad 16 is provided with a support frame 22 integrally with the seat cushion pad 16. That is, this support frame 22 is in a state of being located on the seat front side of the pipe frame 32.

[0042] With the protruding portion 28 supported by the support frame 22, it protrudes outward from the support frame 22 toward the pipe frame 32 side on the outside of the seat cushion pad 16. On the other hand, the pipe frame 32 of the seat cushion frame 18 is provided with the above-described through portion 38.

[0043] Therefore, in the present embodiment, by locking the protruding portion 28 to the through portion 38, the rear portion 16A of the seat cushion pad 16 can be stably supported with respect to the seat cushion frame 18 on the front side of the seat of the pipe frame 32 without arranging the rear portion 16A on the upper side of the seat of the pipe frame 32. Therefore, in the present embodiment, even if a battery placement space is secured below the seat, it is possible to suppress a part of the seat cushion pad 16 from being damaged.

[0044] Further, in the present embodiment, the protruding portion 28 can be locked to the through portion 38 in a state where the protruding portion 28 is supported by the support frame 22, and during the operation of locking the protruding portion 28 to the through portion 38, it becomes easier for the operator to transmit force to the protruding portion 28.

[0045] In addition, in the present embodiment, the through portion 38 is provided in the pipe frame 32 that constitutes a part of the seat cushion frame 18, and the protruding portion 28 provided on the seat cushion pad 16 can be directly locked to the pipe frame 32.

[0046] As described above, the seat 10 to which the seat cushion pad fixing structure according to the present embodiment is applied can support the seat cushion pad in a stable state while securing a battery placement space below the seat.

[0047] <Second Embodiment> Hereinafter, a second embodiment of the seat cushion pad fixing structure according to the present invention will be described with reference to FIG. 2. Note that the same reference numerals are given to the same components as those in the above-described first embodiment, and the description thereof will be omitted.

[0048] In the seat cushion pad fixing structure according to the present embodiment, a plurality of "through holes 40" are formed in the connecting plate portion 36 integrally formed with the cushion spring portion 34 as a portion to be locked to which the protruding portion 28 can be locked. That is, in the present embodiment, the connecting plate portion 36 functions as a support portion.

[0049] According to such a configuration, the seat cushion frame 18 includes a front frame 30 that constitutes the front portion of the seat, and a cushion spring portion 34 spanned between the front frame 30 and the pipe frame 32. Therefore, the occupant can be supported by the elastic force of the cushion spring portion 34. Note that the first embodiment described above is the same in this regard.

[0050] In the present embodiment, the connecting plate portion 36 is provided integrally with the cushion spring portion 34, and this connecting plate portion 36 is located on the front side of the seat of the pipe frame 32. And the through hole 40 is provided in the connecting plate portion 36. For this reason, in the present embodiment, while supporting the rear portion 16A of the seat cushion pad 16 in a stable state with respect to the seat cushion frame 18, an increase in the number of parts due to the addition of parts provided with the through holes 40 can be suppressed.

[0051] <Third Embodiment> Hereinafter, a third embodiment of the seat cushion pad fixing structure according to the present invention will be described with reference to FIG. 3. Note that the same components as those in the first embodiment described above are denoted by the same reference numerals and the description thereof is omitted.

[0052] In the seat cushion pad fixing structure according to the present embodiment, the seat cushion frame 18 includes a "cushion pan 50" that supports the lower surface of the seat cushion pad 16 instead of the front frame 30, the pipe frame 32, and the cushion spring portion 34.

[0053] A plurality of "through holes 52" are formed as locking portions on the base portion 50A that constitutes the main part of the cushion pad 50 and the rear wall portion 50B that constitutes the rear side portion of the cushion pad 50, where the protruding portion 28 can be locked.

[0054] Note that a hook portion 50C is provided on the back surface of the rear wall portion 50B, and a part of the skin portion 24 is locked to the hook portion 52C via a hook (not shown).

[0055] According to such a configuration, since the through holes 52 are provided in the rear side portion of the cushion pad 50, the rear portion 16A of the seat cushion pad 16 can be supported in a stable state with respect to the seat cushion frame 18 without adding a member for providing the through holes 52.

[0056] Note that in the above-described embodiment, the combination of the locking portion and the locked portion is the protruding portion 28 and the through hole capable of locking it, but the combination of the locking portion and the locked portion is not limited to this. For example, it is possible to adopt a combination of a hook-and-loop fastener, a snap fit, a clamp, a snap button, a bolt and nut, etc. as the combination of the locking portion and the locked portion.

Explanation of Reference Numerals

[0057] 10 Vehicle seat 12 Seat cushion 16 Seat cushion pad 16A Rear portion 18 Seat cushion frame 22 Support frame 28 Protruding portion (locking portion) 30 Front frame 32 Pipe frame 34 Cushion spring portion 36 Connecting plate portion (support portion) 38 Through hole (locked portion) 40 Through hole (locked portion) 50 Cushion pad 52 Through hole (locked portion)

Claims

1. In a seat cushion pad that forms part of a seat cushion capable of supporting the buttocks and thighs of an occupant, a locking portion provided at a rear portion located on the front side of a pipe frame that forms a part of the rear side of a seat cushion frame that forms the rear side of the seat cushion and supports the seat cushion pad, and a locked portion provided on the seat cushion frame and capable of being locked by the locking portion, A seat cushion pad fixing structure having.

2. Further comprising a support frame provided integrally with the seat cushion pad inside the rear portion, The locking portion is a protruding portion that is supported by the support frame and protrudes outward from the support frame toward the pipe frame side of the seat cushion pad, and The locked portion is such that the protruding portion can be locked. The seat cushion pad fixing structure according to claim 1.

3. The locked portion is provided on the pipe frame. The seat cushion pad fixing structure according to claim 1.

4. The seat cushion frame includes a front frame that forms a front side portion of the seat cushion, and a cushion spring portion spanned between the front frame and the pipe frame, and The locked portion is provided on a support portion that is located on the front side of the pipe frame and is provided integrally with the cushion spring portion. The seat cushion pad fixing structure according to claim 1.

5. The seat cushion frame includes a cushion pan that supports the lower surface of the seat cushion pad, and The locked portion is provided on a rear side portion of the cushion pan. The seat cushion pad fixing structure according to claim 1.

Images