Vehicle seats

Abstract

To provide a seat for a vehicle, which includes structure supporting a reclining cover and receives load input against the reclining cover when having, as well as, not having an electric mechanism.SOLUTION: A seat SA for a vehicle comprises: a seat cushion 2; a seat cushion frame 20 which composes a skeleton of the seat cushion 2 and includes a cushion side frame 21; a reclining mechanism 7 which is provided on a rear end part of the seat cushion 2; a reclining cover 50 which covers an end part of the reclining mechanism 7 and side parts of the cushion side frame 21; and a base cover 60 which can be attached to the cushion side frame 21, covering a functional component, and fixes the reclining cover 50 to the cushion frame 21 between the reclining cover 50 and the cushion side frame 21, and supports input load against the reclining cover 50 by the cushion side frame 21.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a reclining cover attached to a seat cushion frame. [Background technology]

[0002] Conventionally, a reclining cover that covers the reclining mechanism of a vehicle seat is attached to a seat cushion by using a bracket fixed to the cushion side frame to support a reinforcing wire frame that extends along the edge of the reclining cover. However, this attachment structure has the problem of increasing the number of parts and complicating the assembly process because of the use of the bracket and reinforcing wire frame to attach the reclining cover.

[0003] Furthermore, Patent Document 1 discloses a structure in which a reclining cover (called a seat side garnish in Patent Document 1) is supported by a metal bracket bent into a crank shape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 2-44534 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, vehicle seats have been equipped with electric mechanisms that automatically move the seat cushion or seat back using a motor or the like, and there has been a demand for locating a switching unit or other functional component that operates the electric mechanism inside the reclining cover. However, with the support structure using a bracket disclosed in Patent Document 1, it is difficult to locate the switching unit or the like inside the reclining cover.

[0006] Therefore, there is still a need for a structure that can support the reclining cover and absorb the load input to the reclining cover, both when the vehicle is equipped with an electric mechanism having functional parts such as a switching unit (power specification) and when it does not have an electric mechanism (manual specification).

[0007] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a vehicle seat having a structure that supports a reclining cover and absorbs load input to the reclining cover, both in cases where an electric mechanism is provided and in cases where an electric mechanism is not provided. [Means for solving the problem]

[0008] The problem is: According to the vehicle seat of the present invention, a seat cushion; a seat cushion frame that forms the framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at the rear end of the seat cushion; a reclining cover that covers the end of the reclining mechanism and one side of the pair of cushion side frames; and a base cover that covers functional components and can be attached to the cushion side frames, the base cover fixing the reclining cover to the cushion side frames between the reclining cover and the cushion side frames and supporting an input load to the reclining cover by the cushion side frames. The reclining cover has a support portion with a groove formed on the inside of the upper portion, and the base cover has a flange portion on the upper portion extending in the front-rear direction of the seat, and the flange portion is inserted into the groove formed on the support portion of the reclining cover, thereby being fixed to the cushion side frame. This is solved by

[0009] According to the vehicle seat described above, the reclining cover is fixed to the cushion side frames by a base cover that covers the functional components and is attachable to the cushion side frames, and the input load to the reclining cover is supported by the cushion side frames. This eliminates the need for components such as a reinforcing wire frame and brackets, making installation easier. Furthermore, by using a base cover to secure the reclining cover, a vehicle seat can be provided that has a structure that supports the reclining cover and absorbs the input load to the reclining cover, both in cases where an electric mechanism is provided and in cases where an electric mechanism is not provided.

[0010] Also, The flange portion extending in the front-rear direction is inserted into the groove portion of the reclining cover, thereby stably restricting the position of the reclining cover.

[0011] In the vehicle seat described above, the base cover may have a crank-shaped cross section including the flange portion that supports the reclining cover and a fixed portion that is attached to the cushion side frame. The crank-shaped cross section of the base cover improves the rigidity of the base cover. Also, a space is created between the base cover and the reclining cover, allowing functional components such as a switching unit to be placed in that space.

[0012] Also, The above-mentioned problem can be solved by a vehicle seat according to the present invention, which includes a seat cushion, a seat cushion frame that forms the framework of the seat cushion and has a pair of cushion side frames, a reclining mechanism provided at the rear end of the seat cushion, a reclining cover that covers the end of the reclining mechanism and one side of the pair of cushion side frames, and a base cover that covers functional components and can be attached to the cushion side frames, and which fixes the reclining cover to the cushion side frames between the reclining cover and the cushion side frames and supports an input load to the reclining cover by the cushion side frames, The base cover has a boss formed on an inner side surface, and the cushion side frame has a through hole formed at a position corresponding to the boss. The boss of the base cover is inserted into the through hole of the cushion side frame, thereby restricting the position of the base cover relative to the cushion side frame in the front-rear direction and the up-down direction. This is solved by . By inserting the bosses into the through holes, the base cover can be easily assembled to the cushion side frame.

[0013] Also, The above-mentioned problem can be solved by a vehicle seat according to the present invention, which includes a seat cushion, a seat cushion frame that forms the framework of the seat cushion and has a pair of cushion side frames, a reclining mechanism provided at the rear end of the seat cushion, a reclining cover that covers the end of the reclining mechanism and one side of the pair of cushion side frames, and a base cover that covers functional components and can be attached to the cushion side frames, and which fixes the reclining cover to the cushion side frames between the reclining cover and the cushion side frames and supports an input load to the reclining cover by the cushion side frames, The base cover has a tapping fixing portion that is fixed to the cushion side frame by screwing and an engaging claw portion that is fixed by engaging a claw portion, and the tapping fixing portion and the engaging claw portion are arranged so as to overlap in the front-rear direction. This is solved by . By arranging the tapping fixing portion and the engaging claw portion so as to overlap in the front-rear direction, the base cover can be fixed to the cushion side frame more firmly.

[0014] Also, The above-mentioned problem can be solved by a vehicle seat according to the present invention, which includes a seat cushion, a seat cushion frame that forms the framework of the seat cushion and has a pair of cushion side frames, a reclining mechanism provided at the rear end of the seat cushion, a reclining cover that covers the end of the reclining mechanism and one side of the pair of cushion side frames, and a base cover that covers functional components and can be attached to the cushion side frames, and which fixes the reclining cover to the cushion side frames between the reclining cover and the cushion side frames and supports an input load to the reclining cover by the cushion side frames, An inner cover is provided between the base cover and the reclining cover, and the inner cover is fixed to the outer side surface of the base cover. This is solved by . By fixing the inner cover to the outer side surface of the base cover, the rigidity of the base cover is improved, and the base cover can receive the load input more stably.

[0015] In the vehicle seat described above, the base cover and the inner cover may be engaged with each other by means of a resin claw. The base cover and the inner cover are engaged with each other by the resin claws, which allows for easy assembly with a simple structure.

[0016] In addition, the vehicle seat may include a switching unit as the functional component, and the switching unit may be disposed between the inner cover and the reclining cover and fixed to the inner cover. By fixing the switching unit to the inner cover, the switching unit is protected from external load input.

[0017] In the vehicle seat described above, the switching unit may be located inside the base cover in a side view and may be disposed so as to overlap a fixing position where the base cover is fixed to the cushion side frame. By positioning the switching unit inside the base cover and arranging it so as to overlap with the fixing position of the base cover, the switching unit is better protected against external load input.

[0018] Also, The above-mentioned problem can be solved by a vehicle seat according to the present invention, which includes a seat cushion, a seat cushion frame that forms the framework of the seat cushion and has a pair of cushion side frames, a reclining mechanism provided at the rear end of the seat cushion, a reclining cover that covers the end of the reclining mechanism and one side of the pair of cushion side frames, and a base cover that covers functional components and can be attached to the cushion side frames, and which fixes the reclining cover to the cushion side frames between the reclining cover and the cushion side frames and supports an input load to the reclining cover by the cushion side frames, The reclining cover is fixed by a fixing claw provided at the front end of the reclining cover being hooked onto the base cover. This is solved by . The fixing claw provided at the front end of the reclining cover is hooked onto the base cover, thereby ensuring reliable positioning of the front side of the reclining cover. [Effects of the Invention]

[0019] According to the vehicle seat of the present invention, the reclining cover is fixed to the cushion side frame by a base cover that covers the functional components and can be attached to the cushion side frame, and the input load to the reclining cover is supported by the cushion side frame. This eliminates the need for components such as a reinforcing wire frame and brackets, making installation easier. Furthermore, by using a base cover to secure the reclining cover, it is possible to provide a vehicle seat that has a structure that supports the reclining cover and absorbs the input load to the reclining cover, both in cases where an electric mechanism is provided and in cases where there is no electric mechanism. Furthermore, the flange portion extending in the front-rear direction is inserted into the groove portion of the reclining cover, thereby stably restricting the position of the reclining cover. The crank-shaped cross section of the base cover improves the rigidity of the base cover. Also, a space is created between the base cover and the reclining cover, allowing a switching unit or the like to be disposed in that space. Furthermore, by inserting the bosses into the through holes, the base cover can be easily assembled to the cushion side frame. Furthermore, by arranging the tapping fixing portion and the engaging claw portion so as to overlap in the front-rear direction, the base cover can be fixed to the cushion side frame more firmly. Furthermore, by fixing the inner cover to the outer side surface of the base cover, the rigidity of the base cover is improved, allowing it to receive load input more stably. Furthermore, the base cover and the inner cover are engaged with each other by means of resin claws, which allows for easy assembly with a simple structure. Furthermore, by fixing the switching unit to the inner cover, the switching unit is protected from external load input. Furthermore, by positioning the switching unit inside the base cover and arranging it so as to overlap with the fixing position of the base cover, the switching unit is better protected against external load input. Furthermore, the fixing claw provided at the front end of the reclining cover is hooked onto the base cover, thereby ensuring reliable positioning of the front side of the reclining cover. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view showing the appearance of a vehicle seat according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing a seat frame of the vehicle seat. [Figure 3] 1 is a perspective view of a cushion side frame with a reclining cover attached thereto, as viewed from the inside of the vehicle seat. FIG. [Figure 4] FIG. 2 is a perspective view of the base cover as seen from the inside of the vehicle seat. [Figure 5] FIG. 2 is a perspective view of the base cover as seen from outside the vehicle seat. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8]FIG. 10 is a perspective view showing a cushion side frame to which a switching unit is attached. [Figure 9] FIG. 2 is an exploded perspective view showing a cushion side frame having a switching unit and the like. [Figure 10] 2 is a perspective view showing the unit cover (inner cover) attached to the base cover, as viewed from the outside of the vehicle seat. FIG. [Figure 11] FIG. 2 is a perspective view of the vehicle seat from the inside, showing the unit cover attached to the reclining cover. [Figure 12] FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 8. [Figure 13] FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 8. [Figure 14] FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0021] The configuration of a vehicle seat according to one embodiment of the present invention will be described below with reference to the drawings. However, the embodiment described below is intended to facilitate understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit thereof, and of course, the present invention also includes equivalents thereof. In the following description, the contents regarding the materials, shapes, and sizes of the seat components are merely examples and do not limit the present invention.

[0022] In the following, a vehicle seat mounted on a vehicle will be taken as an example of a vehicle seat, and an example of its configuration will be described. However, the present invention is not limited to vehicle seats mounted on ground vehicles having wheels such as automobiles and trains, and can also be applied to seats mounted on aircraft, ships, and other vehicles that move on non-ground surfaces.

[0023] In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle seat, which is the direction that coincides with the direction of travel when the vehicle is traveling. The "seat width direction" refers to the width direction of the vehicle seat (in other words, the width direction of the seat body), which is the direction that coincides with the left-right direction as seen by an occupant seated in the vehicle seat. The "up-down direction" refers to the up-down direction of the vehicle seat, which is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0024] In addition, the "outside of the vehicle" in the seat width direction means the side closer to the outside of the vehicle body (or, more simply, the side closer to the nearest door), and the "inside of the vehicle" means the side closer to the inside of the vehicle body (or, more simply, the side farther from the nearest door). In the following description, unless otherwise specified, "rotation" means a rotational movement about an axis along the sheet width direction.

[0025] The shapes, positions, and postures of the various parts of the vehicle seat described below will be described assuming that the vehicle seat is in an occupied state, unless otherwise specified.

[0026] <<First Embodiment>> The basic configuration of a vehicle seat according to a first embodiment (hereinafter referred to as vehicle seat SA) will be described with reference to Fig. 1. Fig. 1 is a perspective view of the vehicle seat SA, and for convenience of illustration, a cushion trim cover T and a pad P are removed from part of the vehicle seat SA in Fig. 1.

[0027] <Vehicle seat SA> The vehicle seat SA is placed on the vehicle floor and is a seat in which a vehicle occupant sits. In this embodiment, the vehicle seat SA is used as a front seat corresponding to the front seat of the vehicle. However, the vehicle seat SA is not limited to this, and can also be used as a rear seat, and can also be used as a second-row middle seat or a third-row rear seat in a vehicle with three rows of seats in the front-to-rear direction.

[0028] As shown in FIG. 1, a vehicle seat SA mainly comprises a seatback 1, which serves as a backrest supporting the back of the seated occupant, a seat cushion 2, which serves as a seating portion supporting the buttocks of the seated occupant, and a headrest 3, which is disposed on top of the seatback 1 and supports the head of the seated occupant. The seatback 1 and the seat cushion 2 are connected to sandwich a reclining mechanism 7 (see FIG. 2). The seatback 1 is connected to the seat cushion 2 so that it can rotate and adjust the angle. The reclining mechanism 7 is a mechanism that adjusts the tilt angle of the seatback 1. The seatback 1 and the seat cushion 2 may be collectively referred to as a seat body Sh.

[0029] <Seat frame FA> As shown in Figure 2, a seat frame FA is provided inside the vehicle seat SA, and the seat frame FA 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.

[0030] <Seatback frame 10> As shown in Fig. 2, the seatback frame 10 is formed in the shape of a rectangular frame overall and includes an upper frame 11, a lower frame 12, and a pair of backside frames 13, 13 (a pair of side frames). The pair of backside frames 13, 13 are spaced apart in the seat width direction (left-right direction). The upper frame 11 is disposed between the pair of backside frames 13, 13 and connects the upper ends of the backside frames 13, 13. The lower frame 12 is disposed between the pair of backside frames 13, 13 and connects the lower ends of the pair of backside frames 13, 13.

[0031] <Seat cushion frame 20> Like the seatback frame 10, the seat cushion frame 20 is also formed in a rectangular frame shape overall, with a pair of cushion side frames 21, 21 provided on its sides. The seat cushion frame 20 also has a front connecting frame 22 that connects the pair of cushion side frames 21, 21 at the front, and a rear connecting frame 23 that connects them at the rear. The front connecting frame 22 and the rear connecting frame 23, which are located at the front and rear of the vehicle seat SA, are made of round pipes. A cushion pan frame 24 is provided in front of the front connecting frame 22. Although not shown, a pressure-receiving member is attached to bridge between the cushion pan frame 24 and the rear connecting frame 23, and the pressure-receiving member supports the buttocks of a seated occupant from below.

[0032] <Headrest 3 and headrest frame 30> The headrest 3 is attached to the upper part of the seat back 1 so as to support the head of a seated occupant. As shown in FIG. 2 , a headrest frame 30 that forms the skeleton of the headrest 3 is provided inside the headrest 3, and two headrest pillars 31 (also called headrest stays) that hang down from the bottom of the headrest 3 are provided on both the left and right ends of the headrest frame 30. The headrest 3 is attached to the seat back frame 10 by inserting the headrest pillars 31 into headrest guides 11a that are attached to an upper frame 11 of the seat back frame 10, which will be described later.

[0033] <Pad P and cushion trim cover T> A pad P and a cushion trim cover T (cushion cover) are provided on the outside of the seat back frame 10, the seat cushion frame 20, and the headrest frame 30, thereby forming the seat back 1, the seat cushion 2, and the headrest 3. The pad P is a urethane base material formed by foam molding using, for example, a urethane foam material, and the cushion trim cover T is made of a surface material such as cloth, synthetic leather, or genuine leather.

[0034] <Slide rail 4> 2, a slide rail 4 is installed under the vehicle seat SA. The slide rail 4 allows the vehicle seat SA to be attached to the vehicle floor in a state where it can slide back and forth.

[0035] The slide rail 4 is a device for sliding the vehicle seat SA in the front-rear direction and has a known structure (the structure of a general slide rail mechanism). The slide rail 4 has a lower rail 41 fixed to the vehicle body floor and an upper rail 42 that is slidable relative to the lower rail 41. The upper rail 42 is slidable relative to the lower rail 41 that is fixed to the vehicle body.

[0036] <Reclining mechanism 7> A reclining mechanism 7 is provided between the lower end of the seat back 1 and the rear end of the seat cushion 2. More specifically, the reclining mechanism 7 connects a seat back frame 10 of the seat back 1 and a seat cushion frame 20 of the seat cushion 2. The reclining mechanism 7 makes it possible to adjust the angle of the seat back 1 (seat back frame 10) relative to the seat cushion 2 (seat cushion frame 20). The reclining mechanism 7 can lock the seat back 1 at a predetermined angle and maintain the inclined state. Furthermore, by releasing the lock, the seat back 1 can be tilted forward or backward.

[0037] <Reclining cover and base cover> The reclining cover 50 and the base cover 60 provided in the vehicle seat SA of this embodiment will be described below with reference to FIGS. 1 and 3, the reclining cover 50 is a member that covers the end of the reclining mechanism 7 and the side of the cushion side frame 21. By attaching the reclining cover 50, the reclining mechanism 7 and the cushion side frame 21 are protected and not exposed to the outside.

[0038] Conventionally, the reclining cover has been attached by attaching a bracket to the cushion side frame 21 and using the bracket to support a reinforcing wire frame that is installed along the upper edge of the reclining cover. However, using the bracket and reinforcing wire frame to secure the reclining cover increases the number of parts and requires additional assembly work.

[0039] In this embodiment, as shown in Fig. 3, the reclining cover 50 is attached to the left cushion side frame 21 of the pair of cushion side frames 21. The rear end of the reclining cover 50 is fixed by resin claws or the like provided around the reclining mechanism 7. Meanwhile, the front portion of the reclining cover 50 is fixed by a base cover 60 provided between the reclining cover 50 and the cushion side frame 21. Note that the reclining cover 50 may also be fixed to the cushion side frame 21 on the right side.

[0040] The base cover 60 is a member that covers functional components such as a switching unit and enables the functional components to be attached to the cushion side frame 21. The base cover 60 also has the function of fixing the reclining cover 50 in place and the function of supporting the input load to the reclining cover 50 with the cushion side frame 21.

[0041] Since the reclining cover 50 is supported by the base cover 60, there is no need to provide brackets and reinforcing wire frames as in the past, reducing the number of parts and shortening the time required for assembly.

[0042] As shown in Figures 3, 4, and 6, a plurality of ribs 51 (supporting portions) are provided on the inside of the upper portion of the reclining cover 50, and grooves 52 are formed below the ribs 51. A flange 61 extending in the front-to-rear direction of the seat is provided on the upper portion of the base cover 60, and the flange 61 is inserted into the grooves 52 formed below the ribs 51, as shown in Figure 6. By inserting the flange 61 extending in the front-to-rear direction of the seat into the grooves 52 formed by the plurality of ribs 51, the reclining cover 50 can be supported over a wide range, and its position can be more stably regulated.

[0043] 6, the cross section of the base cover 60, including the flange portion 61 that supports the reclining cover 50 and the fixed portion 62 that is attached to the cushion side frame 21, is formed in a crank shape (S-shape). Forming the base cover 60 in a crank shape improves the rigidity of the base cover 60, and as shown in FIG. 6, a space SP is formed between the reclining cover 50 and the fixed portion 62. A functional part such as a switching unit can be disposed in this space SP. Note that in the case of a manual specification in which no functional part is attached to the vehicle seat SA, for example, in which no switching unit for operating the electric mechanism is provided, nothing may be attached to the base cover 60, and the space SP between the reclining cover 50 and the base cover 60 may be left empty.

[0044] 4, a position-fixing boss 63 is formed on the inner side surface 62a of the fixing portion 62 of the base cover 60. The boss 63 is provided to protrude toward the inside of the vehicle seat SA. Furthermore, a through hole 21a is formed on the side surface of the cushion side frame 21 at a position corresponding to the boss 63, specifically at a position connected to the front connecting frame 22. The base cover 60 is attached to the cushion side frame 21 by inserting the boss 63 into the through hole 21a. The position of the base cover 60 in the front-rear direction and the up-down direction is regulated by inserting the boss 63 into the through hole 21a. This allows the base cover 60 to be easily assembled to the cushion side frame 21.

[0045] 4, the base cover 60 is provided with two tapping fixing portions 64 for fixing with screws to the cushion side frame 21. The tapping fixing portions 64 protrude inward and are positioned so as to communicate with the through holes 21b formed in the cushion side frame 21.

[0046] The base cover 60 is also provided with two engaging claws 65 that engage with the cushion side frame 21. The two engaging claws 65 are arranged above and below the tapping fixing portion 64, in other words, at positions that overlap with the tapping fixing portion 64 in the front-to-rear direction. In other words, the tapping fixing portion 64 is arranged so as to be sandwiched between the two engaging claws 65. By arranging the tapping fixing portion 64 and the engaging claws 65 in this manner and fastening them with screws, the base cover 60 can be fixed to the cushion side frame 21 more firmly. In addition, a contact protrusion 66 (boss) that contacts the side of the cushion side frame 21 is provided in front of the tapping fixing portion 64 to support the base cover 60.

[0047] 4, the reclining cover 50 has a fixing claw 53 at its front end, which is hooked onto the tip of the base cover 60, thereby fixing the reclining cover 50. The fixing claw 53 at the front end of the reclining cover 50 can reliably regulate the position of the front side of the reclining cover 50.

[0048] 5, the base cover 60 is provided with a wall portion 69 that extends outward around the fixing portion 62, and is formed into a box-like shape as a whole. The box-like shape makes it possible to cover, for example, a unit cover 80 (inner cover) described below.

[0049] <<Second embodiment>> <Vehicle seat SB with electric mechanism> Next, a vehicle seat SB having an electric mechanism according to a second embodiment will be described with reference to Figures 8 to 14. Similar to the vehicle seat SA shown in Figure 1, the vehicle seat SB includes a seat back 1, a seat cushion 2, and a headrest 3, and includes a reclining mechanism 7 between the seat back 1 and the seat cushion 2. The vehicle seat SA shown in Figures 1 to 7 is of a manual specification, in which the height of the seat cushion 2 is changed and the reclining angle of the seat back 1 is manually adjusted. On the other hand, the vehicle seat SB shown in Figures 8 to 14 is of a power specification, in which an electric mechanism such as an actuator 90 is mounted on the seat body Sh, so that the height of the seat cushion 2 and the reclining angle can be automatically adjusted.

[0050] The vehicle seat SB has almost the same configuration as the vehicle seat SA shown in Figures 1 to 7, except that it is equipped with an actuator 90, a switching unit 70, etc. on the cushion side frame 21 of the seat cushion frame 20A, so detailed explanations of the seat back 1, seat cushion 2, etc. will be omitted.

[0051] 8, the vehicle seat SB has an actuator 90 provided on the outer side of the cushion side frame 21 of the seat cushion frame 20A, further forward than the reclining mechanism 7. The actuator 90 is, for example, an electric mechanism that changes the height of the seat cushion 2. In addition, a switching unit 70 for operating the actuator 90 is provided further forward than the actuator 90 .

[0052] <Switching unit 70> The switching unit 70 is provided with a plurality of switches 71 and is modularized as a single component. The switching unit 70 is connected to the actuator 90 by a cable, and the actuator 90 can be operated by a switching operation by the seat occupant. The switching unit 70 and the actuator 90 are configured to be covered by the reclining cover 50. As shown in FIG. 8, the switching unit 70 is attached to the base cover 60 via a unit cover 80 (inner cover).

[0053] The switching unit 70 is located inside the base cover 60 in a side view, and is arranged so as to overlap with the fixing position where the base cover 60 is fixed to the cushion side frame 21. The switching unit 70 is protected from external loads by being positioned inside the base cover 60 and overlapping the fixing position of the base cover 60. The switching unit 70 is fixed to the unit cover 80 by tapping, but may also be fixed to the reclining cover 50 by resin nails.

[0054] <Unit Cover 80> The unit cover 80 is a member that covers and protects the switching unit 70, and also secures the switching unit 70 to the base cover 60. The unit cover 80 is secured to the outer side surface 62b of the base cover 60, and is disposed on the reclining cover 50 side. By securing the unit cover 80 to the outer side surface 62b of the base cover 60, the rigidity of the base cover 60 is improved, and the base cover 60 can withstand load input more stably.

[0055] 10 and 11, the unit cover 80 has tapping fastening portions 81 at the front and rear ends, allowing it to be screwed to the reclining cover 50. Two engagement holes 83 are provided on the top of the unit cover 80, and as shown in FIG. 14, resin claws 54 protruding from the reclining cover 50 are inserted into and engaged with the engagement holes 83, thereby attaching the unit cover 80 to the reclining cover 50. Two resin claws 82 protrude from the inner wall of the unit cover 80, and the resin claws 82 are inserted into and engaged with the engagement holes 68 of the base cover 60, thereby fixing the unit cover 80 to the base cover 60.

[0056] Walls 84 are provided on the outer periphery of the unit cover 80, forming a box shape. As shown in Figures 12 to 14, the switching unit 70 attached to the unit cover 80 is covered and protected from the front, back, top, and bottom. Furthermore, because the switching unit 70 is disposed between the reclining cover 50 and the unit cover 80 and is fixed to the unit cover 80, the switching unit 70 can be protected from external load input.

[0057] The vehicle seats SA and SB according to this embodiment have been described above with reference to the drawings. As described above, the base cover 60 can be used for both the manual vehicle seat SA and the power vehicle seat SB. In both specifications, the base cover 60 can regulate and fix the position of the reclining cover 50 and can withstand load input to the reclining cover 50. In addition, in this embodiment, the switching unit 70 is given as an example of a functional component attached to the base cover 60, but the functional component is not limited to this and may be, for example, a touch sensor, an ECU, an actuator 90, or the like. [Explanation of symbols]

[0058] SA, SB Vehicle seats (vehicle seats) T Cushion trim cover (cushion cover) P Pad FA seat frame Sh seat body 1 seat back 2 seat cushions 3 Headrest 4 slide rails 7 Reclining mechanism 10 Seat back frame 11 Upper frame 11a Headrest guide 12 Lower frame 13 Backside frame 20, 20A seat cushion frame 21 Cushion side frame 21a Through hole 21b Through hole 22 Front connecting frame 23 Rear connecting frame 24 Cushion Pan Frame 30 Headrest frame 31 Headrest pillar 41 Lower rail 42 Upper rail 50 Reclining cover 51 Rib (support part) 52 Groove 53 Fixed claw 54 Resin Nails 60 Base cover 61 Flange 62 Fixed part 62a Medial side 62b Outer side 63 Boss 64 Tapping fixing part 65 Engagement claw 66 Contact protrusion 68 Engagement hole 69 Wall 70 Switching Unit 71 Switch 80 Unit cover (inner cover) 81 Tapping fixing part 82 Resin Nails 83 Engagement hole 84 Wall 90 Actuator

Claims

1. Seat cushion and a seat cushion frame that forms a framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at a rear end of the seat cushion; a reclining cover that covers an end of the reclining mechanism and one side of the pair of cushion side frames; a base cover that covers functional components and can be attached to the cushion side frame, the base cover fixing the reclining cover to the cushion side frame between the reclining cover and the cushion side frame, and supporting an input load to the reclining cover by the cushion side frame; The reclining cover has a support portion with a groove formed on the inside of an upper portion thereof, The vehicle seat is characterized in that the base cover has a flange portion at its upper part extending in the fore-and-aft direction of the seat, and the flange portion is fixed to the cushion side frame by being inserted into the groove formed in the support portion of the reclining cover.

2. A seat cushion; a seat cushion frame that forms a framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at a rear end of the seat cushion; a reclining cover that covers an end of the reclining mechanism and one side of the pair of cushion side frames; a base cover that covers functional components and can be attached to the cushion side frame, the base cover fixing the reclining cover to the cushion side frame between the reclining cover and the cushion side frame, and supporting an input load to the reclining cover by the cushion side frame; The base cover has a boss formed on an inner side surface, The cushion side frame has a through hole formed at a position corresponding to the boss, A vehicle seat characterized in that the boss of the base cover is inserted into the through hole of the cushion side frame, thereby regulating the position of the base cover in the front-to-back and up-to-down directions relative to the cushion side frame.

3. A seat cushion; a seat cushion frame that forms a framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at a rear end of the seat cushion; a reclining cover that covers an end of the reclining mechanism and one side of the pair of cushion side frames; a base cover that covers functional components and can be attached to the cushion side frame, the base cover fixing the reclining cover to the cushion side frame between the reclining cover and the cushion side frame, and supporting an input load to the reclining cover by the cushion side frame; the base cover has a tapping fixing portion that is fixed to the cushion side frame by screwing and an engaging claw portion that is fixed by engaging with a claw portion, The vehicle seat is characterized in that the tapping fixing portion and the engaging claw portion are arranged to overlap in the front-rear direction.

4. A seat cushion; a seat cushion frame that forms a framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at a rear end of the seat cushion; a reclining cover that covers an end of the reclining mechanism and one side of the pair of cushion side frames; a base cover that covers functional components and can be attached to the cushion side frame, the base cover fixing the reclining cover to the cushion side frame between the reclining cover and the cushion side frame, and supporting an input load to the reclining cover by the cushion side frame; an inner cover between the base cover and the reclining cover; The vehicle seat is characterized in that the inner cover is fixed to an outer side surface of the base cover.

5. A seat cushion; a seat cushion frame that forms a framework of the seat cushion and has a pair of cushion side frames; a reclining mechanism provided at a rear end of the seat cushion; a reclining cover that covers an end of the reclining mechanism and one side of the pair of cushion side frames; a base cover that covers functional components and can be attached to the cushion side frame, the base cover fixing the reclining cover to the cushion side frame between the reclining cover and the cushion side frame, and supporting an input load to the reclining cover by the cushion side frame; The vehicle seat is characterized in that the reclining cover is fixed by a fixing claw provided at a front end of the reclining cover being hooked onto the base cover.

6. 2. The vehicle seat according to claim 1, wherein the cross section of the base cover, including the flange portion that supports the reclining cover and the fixed portion that is attached to the cushion side frame, is formed in a crank shape.

7. 5. The vehicle seat according to claim 4, wherein the base cover and the inner cover are engaged with each other by means of a resin claw.

8. a switching unit is provided as the functional component; 8. The vehicle seat according to claim 4, wherein the switching unit is disposed between the inner cover and the reclining cover and fixed to the inner cover.

9. The vehicle seat according to claim 8, wherein the switching unit is located inside the base cover in a side view and is arranged so as to overlap a fixing position where the base cover is fixed to the cushion side frame.

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