Vehicle seat

Abstract

To provide a vehicle seat which can be adjusted to support a head of an occupant properly to improve support of the head and safety when the occupant is seated.SOLUTION: A vehicle seat S1 includes: a seat back 1 for supporting a back of an occupant; a headrest 3 provided above the seat back 1 and configured to support a head of the occupant; and a ratchet mechanism 4 provided at a lower end of the headrest 3, which rotatably connects the headrest 3 with the seat back 1 and fixes the headrest 3 at a predetermined angle.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be directly exposed to wind and rain, such as a seat for a motorcycle, scooter, snowmobile, jet ski, all-terrain vehicle, golf cart, or other outdoor vehicle. [Background technology]

[0002] Patent Document 1 discloses a vehicle seat for use outdoors, which is intended for use in a four-wheeled buggy and is provided with a seat back that supports the back of a passenger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 63-7082 Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 does not disclose a structure for adequately supporting the head of an occupant, and there is a need for improved support and safety when seated, including for the head. Additionally, for vehicles used outdoors, such as buggies, side-by-side vehicles, and golf carts, the seats are exposed to wind, rain, and mud, so improvements in waterproofness, water repellency, drainage, and ease of cleaning when soiled are required.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a vehicle seat that can be adjusted to properly support the occupant's head, thereby improving head support and safety when seated. Another object is to improve the waterproofness, water repellency, drainage properties, ease of cleaning when soiled, etc. of the sheet. [Means for solving the problem]

[0006] The above-mentioned problems are solved by the vehicle seat of the present invention, which comprises a seat back that supports the back of the occupant, a headrest that is provided above the seat back and supports the head of the occupant, and a ratchet mechanism at the lower end of the headrest that rotatably connects the headrest to the seat back and fixes the headrest at a predetermined angle. A vehicle seat has a headrest that is rotatably connected to the seat back and is equipped with a ratchet mechanism that fixes it at a predetermined angle, making it possible to properly support the occupant's head, thereby improving head support and safety when seated.

[0007] Furthermore, the vehicle seat may include a backing material that covers the back surface of the seat back and the back surface of the headrest, and the headrest may be positioned forward of the backing material and may include a headrest support material that covers the back surface of the headrest and supports the headrest. By providing the headrest with the headrest support material, it is possible to suppress a decrease in the rigidity of the headrest.

[0008] In the vehicle seat described above, the headrest may comprise a headrest pad and the headrest support material, and may be attached to the seat back so that the headrest and the headrest support material rotate integrally. By rotating the headrest pad and the headrest support member together as a unit, the headrest can be rotated while maintaining the rigidity of the headrest.

[0009] In the vehicle seat described above, a gap may be formed between the backing material and the headrest support material. By forming a gap between the backing material and the headrest support material, it is possible to suppress the generation of abnormal noise caused by the backing material and the headrest support member coming into contact with each other.

[0010] In the vehicle seat described above, the headrest support member may be connected to the backing material by a connecting member extending forward from the backing material at a connection portion between the seat back and the headrest. The headrest is connected to the backing material by a connecting member extending forward from the backing material, thereby increasing the rigidity of the connection portion.

[0011] In the vehicle seat described above, the ratchet mechanism may be provided at the center of the lower surface of the headrest in the front-rear direction of the seat. By providing the ratchet mechanism at the center of the underside of the headrest in the front-rear direction of the seat, the headrest can be rotated in the front-rear direction in a balanced manner.

[0012] In the vehicle seat described above, the ratchet mechanism may be provided at the center of the lower surface of the headrest in the seat width direction. By providing the ratchet mechanism at the center of the underside of the headrest in the seat width direction, the headrest can be supported and rotated in a balanced manner.

[0013] In the vehicle seat described above, the headrest support member may have a shaft support portion that protrudes forward at a lower end portion and supports a rotation shaft of the ratchet mechanism. The provision of a shaft support portion that protrudes forward from the lower end of the headrest support member and supports the rotation shaft of the ratchet mechanism makes it easier to attach the ratchet mechanism, improving the ease of assembly of the headrest.

[0014] In the vehicle seat described above, an inclined portion may be provided on the upper surface of the seat back, inclining downward in the front-rear direction of the seat from a connection portion where the seat back is connected to the headrest. By providing an inclined portion on the upper surface of the seat back, interference between the headrest and the seat back can be avoided when the headrest is rotated.

[0015] In addition, in the above-mentioned vehicle seat, a recess that is recessed forward is formed in the backing material at the connection between the headrest and the seat back, and the connecting member extends forward from the bottom of the recess. The formation of a recess in the connection portion increases the rigidity of the backing material, and the connecting member extending forward from the bottom of the recess allows for more stable support of the headrest.

[0016] In the vehicle seat described above, the headrest support member may be provided with a bent portion formed along the shape of the recess in the backing member at a portion facing the recess in the backing member. By providing the bent portion in the headrest support material, contact with the backing material can be avoided, and the generation of abnormal noise and the like can be suppressed. [Effects of the Invention]

[0017] According to the present invention, the headrest is rotatably connected to the seat back and is equipped with a ratchet mechanism that fixes it at a predetermined angle, making it possible to properly support the occupant's head, thereby improving head support and safety when seated. Furthermore, since the headrest has a headrest support material, it is possible to suppress a decrease in the rigidity of the headrest. Furthermore, by rotating the headrest pad and the headrest support member together as a unit, the headrest can be rotated while maintaining the rigidity of the headrest. Furthermore, by forming a gap between the backing material and the headrest support material, it is possible to suppress the generation of abnormal noise caused by the backing material and the headrest support member coming into contact with each other. Furthermore, the headrest is connected to the backing material by a connecting member extending forward from the backing material, thereby increasing the rigidity of the connection portion. Furthermore, by providing the ratchet mechanism at the center of the underside of the headrest in the front-rear direction of the seat, the headrest can be rotated in the front-rear direction in a balanced manner. Furthermore, by providing a shaft support portion that protrudes forward at the lower end of the headrest support member and supports the rotation shaft of the ratchet mechanism, attachment of the ratchet mechanism becomes easier, improving the ease of assembly of the headrest. Furthermore, by providing an inclined portion on the upper surface of the seat back, interference between the headrest and the seat back can be avoided when the headrest is rotated. Furthermore, the formation of a recess in the connection portion increases the rigidity of the backing material, and the connecting member extends forward from the bottom of the recess, thereby enabling more stable support of the headrest. Furthermore, by providing the bent portion in the headrest support material, contact with the backing material can be avoided, and the generation of abnormal noise and the like can be suppressed. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view of a vehicle seat according to a first embodiment of the present invention; [Figure 2] FIG. 2 is a front view of a headrest and a portion of a seat back of the vehicle seat, showing a ratchet mechanism. [Figure 3] 3 is a cross-sectional view taken along line III-III in FIG. 2, showing the configuration of a headrest and a seat back. FIG. [Figure 4] FIG. [Figure 5] FIG. 2 is an exploded perspective view showing the configuration of a seat back of the vehicle seat. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 5, showing a method for attaching the back member. [Figure 7] 1 is a perspective view showing a vehicle seat having a drainage cavity provided in the seat back; [Figure 8A] FIG. 1 is a perspective view showing a vehicle seat. [Figure 8B] FIG. 8B is a cross-sectional view taken along line BB in FIG. 8A. [Figure 8C] FIG. 10 is a perspective view showing the rear surface of the skin material on which a cylindrical member is provided around the through-hole. [Figure 9] 1 is a schematic cross-sectional view showing the configuration of a seat cushion provided with cushioning materials of different hardness. [Figure 10] 1 is a front view showing a seat back of a vehicle seat having a pivotable seat back member; [Figure 11] 10A and 10B are diagrams showing a support member that supports a pivotable seat back member, and are explanatory diagrams showing the operation of the support member. [Figure 12] 12 is a view showing a pivotable seat back member taken along line XII-XII in FIG. 10, and is an explanatory view showing the operation of the seat back member and the support member. [Figure 13A] FIG. 10 is a cross-sectional view showing a stopper that stops the tip of the support member. [Figure 13B] FIG. 10 is a cross-sectional view showing another example of the stopper. [Figure 14] 10A to 10C are explanatory diagrams for explaining a method for manufacturing a skin having projections and depressions formed thereon. [Figure 15A] FIG. 1 is a perspective view of a vehicle seat on which a decorative line is provided by a seat belt. [Figure 15B] FIG. 1 is a perspective view of a vehicle seat with a seat belt removed. [Figure 16] 15B is a cross-sectional view taken along line XVI-XVI in FIG. 15A, showing a recess in which a seat belt is accommodated. [Figure 17] FIG. 10 is a diagram showing a cover material on which a logo is printed in two colors by silk printing. [Figure 18] FIG. 2 is a perspective view showing a printing device for silk printing. [Figure 19] FIG. 2 is a diagram showing a silk screen for a first color and a silk screen for a second color. [Figure 20] FIG. 18 is an enlarged view of a portion A of FIG. 17, and is an explanatory view for explaining a quality control method. [Figure 21] FIG. 1 is a perspective view of a vehicle seat provided with a hook-and-loop fastener. [Figure 22] 1 is a schematic cross-sectional view showing the configuration of a vehicle seat in which a cushion pad is fixed to a bottom plate by a hook-and-loop fastener. [Figure 23]FIG. 2 is a schematic cross-sectional view showing a state before a cushion pad is attached. [Figure 24] 1 is a bottom view of a pad used in a seat cushion of a vehicle seat, as viewed from below. [Figure 25] FIG. 25 is a partially enlarged view showing a portion A of FIG. 24 in an enlarged manner. [Figure 26A] FIG. 26 is a cross-sectional view taken along line AA in FIG. 25, and is a diagram schematically showing a mold for forming the cushion pad. [Figure 26B] FIG. 26 is a cross-sectional view taken along line BB in FIG. 25, and is a diagram schematically showing a mold for molding the cushion pad. [Figure 27] FIG. 1 is a schematic cross-sectional view showing the configuration of a seat back of a conventional vehicle seat. [Figure 28] FIG. 26 is a schematic cross-sectional view showing the configuration of a seat back of a vehicle seat according to a twelfth embodiment. [Figure 29] FIG. 1 is a schematic cross-sectional view showing the configuration of a seat back of a conventional vehicle seat. [Figure 30] FIG. 23 is a schematic cross-sectional view showing the configuration of a seat back of a vehicle seat according to a thirteenth embodiment. [Figure 31] FIG. 23 is a perspective view showing the bottom surface of a motorcycle seat according to a fourteenth embodiment. [Figure 32] FIG. 32 is a partially enlarged perspective view showing a portion A of FIG. 31 in an enlarged manner. [Figure 33] FIG. 4 is a side view showing the configuration of the hook. [Figure 34] 10A and 10B are explanatory diagrams for explaining a procedure for hanging the covering material on the hook. DETAILED DESCRIPTION OF THE INVENTION

[0019] <<First Embodiment>> The configuration of a waterproof covering material and a vehicle seat according to an embodiment of the present invention will be described below with reference to the drawings. However, the embodiment described below is an example 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.

[0020] In the following, an example of a vehicle seat will be given, and a configuration example thereof will be described, for example, of a vehicle seat for a four-wheeled buggy or the like that is used mainly outdoors. However, the present invention is not limited to vehicle seats used in four-wheeled buggies, and may also be a vehicle seat mounted on a ground-traveling vehicle having wheels such as an automobile or train, or a seat mounted on an aircraft or ship that moves other than on land.

[0021] In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle seat, which coincides with the direction of travel when the vehicle is traveling. The "seat width direction" refers to the width direction of the vehicle seat, which coincides with the left-right direction as seen by an occupant seated in the seat. The "up-down direction" refers to the up-down direction of the vehicle seat, which coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0022] <Basic configuration of vehicle seat S1> The basic configuration of a vehicle seat according to this embodiment (hereinafter referred to as vehicle seat S1) will be described with reference to Fig. 1. Fig. 1 is a perspective view of the vehicle seat S1, and for convenience of illustration, part of the vehicle seat S1 is shown in Fig. 1 with upholstery materials 12, 22, and 32 removed.

[0023] The vehicle seat S1 is placed on the vehicle floor and is a seat in which a vehicle occupant (seat occupant) sits. In this embodiment, the vehicle seat S1 is used as a front seat corresponding to the front seat of the vehicle. However, the vehicle seat S1 is not limited to this, and can also be used as a rear seat, and can also be used as a middle seat in the second row or a rear seat in the third row in a vehicle with three rows of seats in the front-to-rear direction.

[0024] As shown in Fig. 1, the vehicle seat S1 mainly comprises a seat back 1, which serves as the backrest supporting the back of the seated occupant, a seat cushion 2, which serves as the seating portion supporting the buttocks of the seated occupant, and a headrest 3, which is disposed on top of the seat back 1 and supports the head of the seated occupant. The seat back 1 and the seat cushion 2 are connected by a frame such as a round pipe.

[0025] The seat back 1 is composed of a bottom plate 10 (see FIG. 4) which is a back surface material, a back pad 11 which is a cushion material arranged on the bottom plate 10, and a cover material 12 which covers the back pad 11. The seat cushion 2 is also made up of a bottom plate (not shown), a cushion pad 21 as a cushion material placed on the bottom plate, and a cover material 22 that covers the cushion pad 21.

[0026] The headrest 3 is made up of a headrest support material 30 (see FIG. 3), a headrest pad 31 as a cushion material placed on the headrest support material 30, and a cover material 32 that covers the headrest pad 31.

[0027] The bottom plate 10 and the headrest support member 30 are plates made of resin or metal. The back pad 11, the cushion pad 21, and the headrest pad 31 are, for example, urethane pads formed by foam molding using a urethane foaming agent.

[0028] The covering materials 12, 22, and 32 have a laminated structure formed by stacking multiple face materials. The layers that make up the covering materials 12, 22, and 32 are composed of, for example, a base fabric and a surface material. The base fabric is made of fabric formed by knitting fibers.

[0029] The surface material is placed on the surface side of the base fabric, i.e., the side facing the occupant, and is made of a waterproof material. Polyvinyl chloride (PVC) is used as a waterproof material. Polyvinyl chloride is highly waterproof, inexpensive, and easy to process. By using polyvinyl chloride as the surface material, it can be used as synthetic leather by applying surface processing while maintaining waterproof properties. The surface material may also be made of polyethylene or polyurethane. The covering materials 12, 22, 32 are fixed by having their ends fixed to the bottom plate 10 or the headrest support material 30 with staples or the like.

[0030] <Ratchet mechanism 4> As shown in Figures 1 and 3, the vehicle seat S1 is provided with a ratchet mechanism 4 at the lower end of the headrest 3, in other words, at the connection portion 13 between the headrest 3 and the seat back 1. The ratchet mechanism 4 connects the headrest 3 to the seat back 1 so that it can rotate around a rotation shaft 42 in the front-to-rear direction. The ratchet mechanism 4 makes it possible to fix the headrest 3, which has been rotated and tilted, at a predetermined angle. There are multiple predetermined angles, allowing for multi-stage fixing. The ratchet mechanism 4 allows the headrest 3 to be moved to a position that suits the occupant's physique and fixed so as to properly support the occupant's head, thereby improving head support and safety when seated.

[0031] As shown in FIG. 3 , the ratchet mechanism 4 includes a rotating shaft 42, a shaft support portion 33 that supports the rotating shaft 42, and a cam 41 attached to the rotating shaft 42. The shaft support portion 33 has teeth 44 at its front end that fit with the claw portion 43. The headrest support member 30 is formed with a wall portion 45 extending forward. The wall portion 45 is positioned so that the tips of the arms extending from the cam 41 abut against contact points 45a and 45b of the wall portion 45 during rotation. The claw portion 43 limits rotation of the shaft support portion 33 that has the teeth 44 to one direction, enabling the position of the headrest 3 to be fixed at a predetermined angle. A blind 46 is provided below the claw portion 43 to hide the ratchet mechanism 4.

[0032] <Headrest support material 30> As described above, the bottom plate 10, which is a backing material, is provided on the back surface of the seat back 1. The bottom plate 10 is provided so as to cover the back surface of the headrest 3 as well. The headrest 3 is provided with a headrest support member 30 that supports a headrest pad 31. The headrest support member 30 is disposed forward of the bottom plate 10, as shown in FIG. 3, a gap C is formed between the bottom plate 10 and the headrest support material 30. By positioning the headrest support material 30 so that the gap C is formed, it is possible to suppress the generation of abnormal noise caused by the bottom plate 10 and the headrest support material 30 coming into contact with each other.

[0033] Furthermore, since the headrest pad 31 is not directly supported by the bottom plate 10, providing the headrest support material 30 can prevent a decrease in the rigidity of the headrest 3. Since the headrest pad 31 and the headrest support material 30 can rotate integrally, the headrest 3 can be rotated while maintaining the rigidity of the headrest 3.

[0034] <Connecting member 14> As shown in Fig. 4, the bottom plate 10 is provided with a connecting member 14 extending forward at a connection portion 13 between the seat back 1 and the headrest 3. The headrest support material 30 is connected to the bottom plate 10 by the connecting member 14. By connecting with the connecting member 14, the rigidity of the connection portion 13 can be increased.

[0035] <Recess 15> The bottom plate 10 has a recess 15 recessed forward at a connection 13 between the headrest 3 and the seat back 1. The connecting member 14 is attached to the bottom of the recess 15 so as to extend forward. The formation of the recess 15 at the connection portion 13 with the headrest 3 increases the rigidity of the bottom plate 10, and the connecting member 14 extending forward from the bottom portion 15a of the recess 15 can more stably support the headrest 3. When viewed from the back, the recess 15 is formed as a groove extending in the seat width direction.

[0036] <Position of ratchet mechanism 4> 3, the ratchet mechanism 4 (more specifically, the rotation shaft 42 of the ratchet mechanism 4) is provided at approximately the center of the lower surface 3a of the headrest 3 in the front-to-rear direction of the seat. By providing the ratchet mechanism 4 at the center of the lower surface 3a of the headrest 3, the headrest 3 can be rotated in the front-to-rear direction in a balanced manner. 2, the ratchet mechanism 4 is provided at the center of the lower surface 3a of the headrest 3 in the seat width direction. By providing the ratchet mechanism 4 at the center of the lower surface 3a of the headrest 3, the headrest 3 can be supported and rotated in a balanced manner.

[0037] <Shaft support part 33> The headrest support member 30 has a shaft support portion 33 that protrudes forward at its lower end and supports the rotation shaft 42 of the ratchet mechanism 4. The presence of the shaft support portion 33 that protrudes forward makes it easier to attach the ratchet mechanism 4, improving the ease of assembly of the headrest 3.

[0038] <Bend> Further, the headrest support member 30 is provided with a bent portion 34 formed along the shape of the recess 15 near the base (rear end) of the shaft support portion 33, in a portion facing the recess 15 of the bottom plate 10. As shown in Fig. 3, the bent portion 34 extends upward from the rear end of the shaft support portion 33, passes over the upper end of the recess 15, and then bends rearward. By providing the bent portion 34 in the headrest support material 30, contact with the bottom plate 10 can be avoided, and the generation of abnormal noise and the like can be suppressed.

[0039] <Slope part 19> 3, an inclined portion 19 is provided on the upper surface of the seat back 1, inclining downward from the connection portion 13 with the headrest 3. By providing the inclined portion 19 on the upper surface of the seat back 1, interference between the headrest 3 and the seat back 1 can be avoided when the headrest 3 rotates.

[0040] <<Second embodiment>> A second embodiment of the present invention will be described with reference to Figures 5 and 6. The second embodiment relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be exposed to wind and rain.

[0041] FIG. 5 is an exploded perspective view showing the configuration of the seat back 201 of the vehicle seat S2 of the second embodiment, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5, showing a method for attaching the back member 220d.

[0042] Conventionally, vehicle seats have been assembled by sewing together multiple pieces of covering material to create different surface colors, and then covering the cushion seat, etc. However, in vehicle seats that may be exposed to wind and rain, there remains the possibility of water seeping in through the sewn areas.

[0043] The seat back 201 of the vehicle seat S2 of this embodiment is composed of a bottom plate 210 that serves as the base of the seat back 201, and a plurality of back members 220a to 220d (hereinafter, collectively referred to as back members 220) that are arranged on the bottom plate 210. The back members 220a to 220d are divided into parts according to color. By combining the colored back members 220a to 220d and attaching them to predetermined positions on the bottom plate 210, the color-coded seat back 201 can be assembled.

[0044] 6, each of the back members 220a to 220d is composed of a cushion 221, a cushion support member 223 that supports the cushion 221, and a cover material 222 that covers the cushion 221. An end of the cover material 222 is fixed to the cushion support member 223 with a staple 224.

[0045] The back member 220 is fixed to the bottom plate 210 by engaging a claw portion 225 formed on the bottom of the cushion support member 223 of the back member 220 with an engagement hole 211 formed in the bottom plate 210, as shown in Figure 6. Each back member 220 is covered with a single sheet of skin material 222, which prevents water from seeping in and improves waterproofing. Furthermore, the back members 220 are color-coded, making it possible to provide a vehicle seat S2 with multiple colors. Furthermore, by producing each back member 220 as a blow-molded product, assembly is made easier and waterproofing performance is improved, thereby reducing manufacturing costs.

[0046] <<Third Embodiment>> A third embodiment of the present invention will be described with reference to Figures 7 to 8C. The third embodiment relates to a vehicle seat, and more particularly to a vehicle seat that may be exposed to wind and rain.

[0047] Fig. 7 shows a vehicle seat S3 in which a drainage cavity 314 is formed in a seat back 301. Fig. 8A is a perspective view of the vehicle seat S3A as seen obliquely from the front, and Fig. 8B is a cross-sectional view taken along line BB in Fig. 8A. Fig. 8C is a perspective view showing the back surface of a cover material 312A provided with a tubular member provided around the through-hole.

[0048] Conventionally, vehicle seats that may be exposed to wind and rain have had the problem that water does not properly drain from the seat surface, resulting in water pooling in the seat surface. Furthermore, when a person sits in a vehicle seat, the lower end of the seat back rarely comes into contact with the occupant's lower back (spine), and even if padding or the like is placed at the lower end of the seat back, the function may not be fully realized.

[0049] In addition, to combat heat (stuffiness), users may also install detachable mesh seat covers. While seat covers can prevent stuffiness, they can also cause foreign objects such as dust to get caught in the mesh of the seat cover or dirt to get into the fibers, which can detract from the appearance of the seat.

[0050] 7, a cavity 314 is formed at the lower end of the seat back 301 so that water accumulated in the seat cushion 302 can be discharged. The formation of the cavity 314 prevents water from accumulating in the seat cushion 302. 7, the seat back 301 is made up of a padding material 311 made of a urethane material and a skin material 312 that covers the padding material 311. By forming a cavity 314 in the seat back 301, the amount of urethane material used to make up the padding material 311 can be reduced.

[0051] 8A, a vehicle seat S3A is formed with a plurality of through-holes 315 that penetrate the seat cushion 302A in the vertical direction, and is configured so that water that accumulates on the surface can be drained through the through-holes 315 to below the seat cushion 302A. This allows water that accumulates on the seat surface to be drained and allows air to circulate, thereby preventing the seat cushion 302A from getting stuffy. This eliminates the need for a separate seat cover to prevent stuffiness, and also prevents the entry of foreign matter and dirt.

[0052] The surface of the seat cushion 302A is inclined so that water can flow into the through-holes 315. To maintain waterproofness, a cover material 312A is provided on the wall surface of through-hole 315. Cover material 312A inside through-hole 315 is produced by providing tubular member 313 made of a cover material on the back surface of cover material 312A, and passing tubular member 313 through through-hole 315 formed in seat back 301A, as shown in Fig. 8C, for example.

[0053] <<Fourth Embodiment>> A fourth embodiment of the present invention will be described with reference to Fig. 9. The fourth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that may be exposed to wind and rain.

[0054] FIG. 9 is a schematic cross-sectional view showing the configuration of a seat cushion 402 provided with cushioning materials of different hardness. In the past, when molding the cushion pad of a seat cushion, it was difficult to foam it with different hardnesses, so priority was given to the hardness of the seat surface where the seat occupant directly sits. This resulted in the problem of not being able to give the bank part of the seat cushion the appropriate hardness.

[0055] 9, in the vehicle seat S4 of this embodiment, a first pad 421 is formed using a normal urethane member in the portion that becomes the seat surface, and a second pad 422 made of hard urethane that is harder than normal urethane members is inserted inside the bank portion of the seat cushion 402. That is, the vehicle seat S4 is composed of the first pad 421 and the second pad 422 that is harder than the first pad 421. The second pad 422 may be provided inside the first pad 421 by insert molding. The first pad 421 is covered with a cover material 423, and the cover material 423 is fixed to the bottom plate 420 with staples 424.

[0056] As shown in FIG. 9, the second pad 422 provided on the bank portion may be directly fixed to the bottom plate 420 by staples 424. Also, as shown in FIG. 9, there is a portion at the end of the bottom plate 420 where the thickness of the second pad 422 is thinner (fixing corner 420a). In such a location, the staple 424 can be driven so that it penetrates the second pad 422 and reaches the first pad 421, thereby fixing both the first pad 421 and the second pad 422 to the bottom plate 420. Since both pads (first pad 421 and second pad 422) are fixed at the fixing corner 420a, the fixation of the entire urethane can be improved. Furthermore, by providing the second pad 422 using hard urethane on the bank portion, the hardness of the bank portion can be increased, improving support.

[0057] <<Fifth Embodiment>> Next, a fifth embodiment of the present invention will be described with reference to Figures 10 to 13B. The fifth embodiment relates to a vehicle seat, and more particularly to a vehicle seat whose shape can be adjusted to accommodate different physiques of occupants.

[0058] Fig. 10 is a front view showing a seat back 501 of a vehicle seat S5 having a rotatable seat back member 504, and Fig. 11 is a view of a base member 513 supporting the rotatable seat back member 504 as seen from the front, and is an explanatory diagram showing the operation of the support member 515. Fig. 12 is a view of the rotatable seat back member 504 taken along line XII-XII in Fig. 10, and is an explanatory diagram showing the operation of the seat back member 504 and the support member 515. Fig. 13A is a cross-sectional view showing a stopper 516 that stops the tip of the support member 515, and Fig. 13B is a diagram showing another example of the stopper 516.

[0059] Conventionally, vehicle seats used outdoors have adopted seat backs that are either flat or do not change shape, but because vehicle seats used outdoors may be exposed to wind and rain, it has been difficult to provide a mechanism for changing shape. Therefore, an object of this embodiment is to provide a vehicle seat having a body size adjustment mechanism that allows the shape to be easily adjusted manually to fit the physique of an occupant.

[0060] The vehicle seat S5 of this embodiment includes a seat back 501 that supports the back of the occupant, and a seat back member 504 that can rotate to fit the back of the occupant is provided on the seat back 501. The seat back 501 is composed of a bottom plate 510, a padding material 511 that is placed on the bottom plate 510, and a cover material 512 that covers the padding material 511. Seat back members 504 that can move independently of the seat back 501 are provided on both sides at positions corresponding to the back of the seated occupant. The seat back members 504 can rotate in the front-rear direction around hinges 517 that extend in the vertical direction as rotation axes.

[0061] As shown in FIG. 12, the seat back member 504 is composed of a base member 513 that is rotatably connected to the bottom plate 510 of the seat back 501 via a hinge 517, a padding material 511 that is placed on the base member 513, and a skin material 512 that covers the padding material 511. In addition, the base member 513 is provided with a support member 515 that fixes the position of the base member 513 at a predetermined angle when the seat back member 504 is rotated.

[0062] The support member 515 is rotatably attached to the base member 513 by a hinge 518. After the seat back member 504 has rotated, the support member 515 can be supported by extending the support member 515 toward the bottom plate (in the direction of arrow B in FIG. 12). As shown in FIG. 12, the bottom plate 510 is provided with a plurality of stoppers 516 at equal intervals to stop the tip of the support member 515, and the occupant can fix the position of the seat back member 504 at a desired angle by abutting the tip of the support member 515 against one of the stoppers 516.

[0063] 13A has a semicircular cross section, but the shape of stopper 516 is not limited to this, and for example, as shown in Fig. 13B, a plurality of stoppers 516A each having a C-shaped cross section may be arranged at equal intervals on bottom plate 510. When the tip of support member 515 bulges out in a rounded shape, stopper 516A can hold the tip of support member 515, thereby making it possible to prevent seat back member 504 from moving forward, for example.

[0064] According to the vehicle seat S5 of this embodiment, the shape of the seat can be manually changed and adjusted to fit the physique of the occupant by using a seat back member 504 rotatably provided on the seat back 501. Note that in this embodiment, the seat back 501 is provided with the rotatable seat back member 504, but a rotatable seat cushion member having a similar structure may be provided on the side of the seat cushion, and the shape may be changed to fit the buttocks of the occupant, etc.

[0065] <<Sixth Embodiment>> A sixth embodiment of the present invention will be described with reference to Fig. 14. The sixth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that may be exposed to wind and rain. FIG. 14 is an explanatory diagram for explaining a method for manufacturing a skin having irregularities formed thereon according to the sixth embodiment.

[0066] Conventional vehicle seats use three components (skin, cushion, and cover) to create an uneven appearance, which increases the cost of materials and assembly steps, resulting in high manufacturing costs. In the vehicle seat of this embodiment, in order to give the seat surface an uneven appearance, as shown in FIG. 14, a cushion 613 (also called a slab) and a covering material 612 are used to express the unevenness.

[0067] Specifically, as shown in the upper part of Figure 14, a cover material 612 is laminated onto a cushion 613, and the processed cushion 613 and cover material 612 are pressed against a welder 630 with unevenness formed thereon, thereby forming recesses 614 on the surface of the cover material 612 to create an uneven appearance, as shown in the lower part of Figure 14. The welder 630 creates a textured surface on the cover material 612, eliminating the need to process the cover provided under the cushion as in the past. This reduces material costs and assembly steps, and helps prevent increases in processing costs.

[0068] <<Seventh Embodiment>> A seventh embodiment of the present invention will be described with reference to Figures 15A to 16. The seventh embodiment relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be exposed to wind and rain.

[0069] Fig. 15A is a perspective view showing a vehicle seat S7 of a seventh embodiment, in which a decorative line is provided by a seat belt 704. Fig. 15B is a perspective view of the vehicle seat S7 in a state in which the seat belt is unfastened. Fig. 16 is a cross-sectional view taken along line XVI-XVI in Fig. 15A.

[0070] In conventional outdoor vehicles, safety is a major concern due to the aggressive riding style, and seat belts that are thicker and wider than those used in ordinary four-wheeled vehicles are used, which makes the seat belts stand out more and is one of the reasons why the design is compromised.

[0071] The vehicle seat S7 of this embodiment includes a seat back 701 that supports the back of the occupant, a seat cushion 702 that supports the buttocks, and a headrest 703 that is provided above the seat back 701 and supports the head of the occupant. The seat back 701, the seat cushion 702, and the headrest 703 are provided with a back pad 711 and a cover material 712 that covers the back pad 711. 15A, a seat belt 704 is provided to secure a seated occupant. As shown in Fig. 15B, a decorative line 705 is provided on the seat back 701. The seat belt 704 is provided with a decorative line similar to the decorative line 705 provided on the seat back 701, thereby improving the design of the vehicle seat S7.

[0072] 15B and 16, the seat back 701 is formed with a recess 701a for accommodating the seat belt 704. When no passenger is seated, the seat belt 704 is stored in the recess 701a, making the vehicle seat S7 appear more flat. This reduces the presence of the seat belt 704, and can also reduce the discomfort felt by the seat belt 704 when the passenger is seated.

[0073] <<Eighth Embodiment>> An eighth embodiment of the present invention will be described with reference to Figures 17 to 20. The eighth embodiment relates to a method for checking the accuracy of silk printing, and in particular to a method for checking the accuracy when silk printing is performed using ink of two or more colors. Fig. 17 is a diagram showing a cover material 812 on which a logo is printed in two colors by silk printing, and Fig. 18 is a perspective view showing a printing device 810 for silk printing. Fig. 19 is a diagram showing a first-color silk plate 821 and a second-color silk plate 822. Fig. 20 is an enlarged view of a portion of Fig. 17, and is an explanatory diagram for explaining the quality control method.

[0074] Traditionally, silkscreen printing has been used to print letters, logos, etc. on vehicle seats used in outdoor vehicles. Silkscreen printing is a technique in which ink is pressed onto a plate called a screen (second-color silkscreen 822 in Figure 18) to print letters, logos, etc. onto the covering material 812 placed underneath. The screen is made of a cloth woven with synthetic fiber threads and is designed so that ink passes only through the area of ​​the design to be printed. For this reason, printing is usually done in one color at a time. When printing with two or more colors, a silkscreen is prepared for each color and printing is done using a separate jig. As a result, misregistration can occur, but it is difficult to determine the extent of the misregistration just by looking at the printed product. Therefore, an accuracy confirmation method for appropriately assessing print accuracy when printing with two or more colors is needed.

[0075] 17 shows an example in which a logo mark is printed in two colors on a cover material 812. The cover material 812 has a portion (a discarded portion 818) that is not visible when attached to a seat. The discarded portion 818 is a portion located outside the seam allowance 815. In the accuracy checking method of this embodiment, a check mark is printed simultaneously with the logo mark on the portion outside the seam allowance 815 (the waste portion 818), so that misalignment can be detected visually.

[0076] Specifically, as with the first-color silk screen 821 shown in the upper part of Fig. 20, a first mark 816 is printed in a position that will become a waste portion 818 of the cover material 812, separate from the first-color logo mark 813. The first marks 816 are printed one on each side of the logo mark 813. In this embodiment, a circle with a diameter of 5 mm, for example, is printed as the first mark 816. 20, a second mark 817 is printed separately from the second-color logo mark 814 at a position that will become the discarded portion 818 of the skin material 812 and that overlaps with the center of the first mark 816. In the second-color silk screen 822, two circles with a diameter of 2 mm are printed as the second marks 817 on either side of the second-color logo mark 814.

[0077] When printing is performed using the first color silk screen 821 shown in the upper part of Fig. 20 and then using the second color silk screen 822, if printing is performed without misalignment, a circle one size smaller (second mark 817) will be printed in the center of a 5 mm diameter circle (first mark 816), as shown by the solid line in Fig. 20. Because the second mark is printed within the first mark 816, it can be visually determined that there is no misalignment.

[0078] Since different silk screens are used for printing, there is a possibility that the position of the second color may be misaligned. If there is a misalignment, the second color will be printed off-center, as shown by the dotted line in Figure 20, as shown in second mark 817a. Even if there is a misalignment, if it is within the first mark 816 (the misalignment width L1 is 1.5 mm or less), the misalignment is not large, so the print result can be considered acceptable and it can be determined that it was printed normally. On the other hand, if the second mark 817b protrudes from the first mark 816 (the deviation width L2 is 2.0 mm or more), it can be determined that the printing was not performed correctly and that the logo mark is misaligned. In this way, it is possible to detect misalignment of the second color even with the naked eye. In this embodiment, the deviation is managed within a range of ±1.5 mm, so the printing accuracy can be confirmed and quality can be improved.

[0079] <<Ninth Embodiment>> A ninth embodiment of the present invention will be described with reference to Fig. 21. The ninth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be exposed to wind and rain.

[0080] FIG. 21 is a perspective view showing a vehicle seat S9 according to the ninth embodiment. Traditionally, vehicles used outdoors have used three-point seat belts to secure occupants, as they are expected to be driven over rough terrain, etc. However, because the conventional three-point seat belts are placed diagonally, four-point seat belts are now used to hold occupants more firmly in place. However, four-point seat belts have many fastening points, making them difficult to use, and there is also the cost involved in switching from a three-point belt to a four-point belt.

[0081] The vehicle seat S9 of this embodiment includes a seat back 901 that supports the back of the occupant, a seat cushion 902 that supports the buttocks, and a headrest 903 that supports the head of the occupant above the seat back 901. The seat back 901 and the seat cushion 902 are composed of a bottom plate, a pad that is placed on the bottom plate, and a covering material that covers the pad. Although not shown, the vehicle in which the seat is installed is provided with a three-point seat belt that can hold the seated occupant in place.

[0082] 21, in the vehicle seat S9 of this embodiment, a hook-and-loop fastener 910 is attached to the seating surface of a seat back 901, more specifically, to the shoulder area. Also, a hook-and-loop fastener 930 is attached to a headrest 903 at a location where the head of an occupant comes into contact. Since the garment is to be used outdoors, if hook and loop fasteners 910 and 930 are attached by sewing, there is a possibility of water seepage, so it is preferable to attach hook and loop fasteners 910 and 930 by welding.

[0083] A hook-and-loop fastener is sewn to the occupant's clothing at a position (for example, the shoulder) corresponding to hook-and-loop fastener 910 on seat back 901. Also, a hook-and-loop fastener is attached to the occupant's helmet at a position (the rear of the helmet) corresponding to hook-and-loop fastener 930 on headrest 903. When an occupant sits in the vehicle seat S9, the hook-and-loop fastener 910 of the seat back 901 secures the occupant's back, preventing the occupant's body from shifting position. Also, the hook-and-loop fastener 930 of the headrest 903 secures the occupant's head, protecting the occupant's neck. Furthermore, the occupant's body swaying is reduced, making it less likely that the occupant will suffer whiplash.

[0084] If a three-point seat belt is already installed, the hook-and-loop fastener can be used to secure the belt more firmly, allowing the belt to be used continuously.In addition, since the belt is fastened with a hook-and-loop fastener, it can be easily removed, and is not as inconvenient as a four-point seat belt that is fastened with multiple buckles.

[0085] <<Tenth Embodiment>> A tenth embodiment of the present invention will be described with reference to Figures 22 and 23. The tenth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be exposed to wind and rain. FIG. 22 is a schematic cross-sectional view showing the configuration of a vehicle seat S10 in which a cushion pad 1021 is fixed to a bottom plate 1020 by a hook-and-loop fastener 1024, and FIG. 23 is a schematic cross-sectional view showing the state before the cushion pad 1021 is attached.

[0086] Conventionally, seats for vehicles such as golf carts used outdoors have been constructed by placing a pad on a bottom plate, covering the pad with a cover material, and fastening the cover material with staples or adhesive. A frame member is inserted into the pad, and the bottom plate and frame member are fastened together with bolts to assemble the seats. However, vehicles such as golf carts are typically driven at low speeds and not vigorously. Therefore, the load on the seat is less than that of a typical vehicle. Therefore, there is a need to reduce manufacturing costs by assembling the seat in a relatively simple manner.

[0087] The vehicle seat S10 of this embodiment is a seat for a vehicle used outdoors, such as a golf cart, and the seat cushion 1002 that supports the buttocks of the occupant is composed of a bottom plate 1020, a cushion pad 1021, and a cover material 1022 that covers the cushion pad 1021. The cover material 1022 and the cushion pad 1021 are formed by integral foaming. A hook-and-loop fastener 1024 is attached to the bottom surface of the cushion pad 1021. A hook-and-loop fastener 1024 is also provided on the upper surface of the bottom plate 1020 at a position corresponding to the hook-and-loop fastener 1024 of the cushion pad 1021, and the vehicle seat S10 can be assembled by placing the cushion pad 1021 integrated with the upholstery material 1022 on the bottom plate 1020.

[0088] Conventionally, the assembly process for vehicle seats involves the following steps: (1) removing the bottom plate, covering material, and cushion; (2) applying adhesive to the bottom plate; (3) setting the covering material and cushion pad; (4) bonding; and (5) pressing.

[0089] In the vehicle seat S10 of this embodiment, the cushion pad 1021 is fixed using a hook-and-loop fastener integrally molded with the cushion pad 1021, so the conventional steps of (2) applying an adhesive, (3) setting the upholstery material and the cushion pad, and (5) pressing can be omitted. Therefore, it is possible to significantly reduce the number of steps compared to the conventional construction method.

[0090] When inserting the hook and loop fastener 1024 into the cushion pad 1021, it is preferable to attach the hook and loop fastener 1024, to which a magnet is attached or adhered, to a mold using magnetic force, and then foam the cushion pad 1021 in the mold. With the hook and loop fastener 1024 exposed on the surface of the cushion pad 1021, the cushion pad 1021 and the hook and loop fastener 1024 can be molded integrally.

[0091] The hook-and-loop fastener 1024 may be attached to the cushion pad 1021 by using an adhesive on the back surface of the cushion pad 1021 after the surface material 1022 and the cushion pad 1021 are integrally foamed. As shown in FIG. 23, the seat cushion 1102 of the vehicle seat S10 can be completed by placing the cushion pad 1021, which is integrated with the cover material 1022 and has a hook-and-loop fastener 1024 attached to the back side, on the bottom plate 1020, which has the hook-and-loop fastener 1024 attached in advance. As described above, it is possible to eliminate the steps of applying adhesive and the step of pressing, thereby achieving a reduction in the number of steps compared to conventional methods.

[0092] <<Eleventh Embodiment>> An eleventh embodiment of the present invention will be described with reference to Figures 24 to 26B. The eleventh embodiment relates to a vehicle seat, and more particularly to a vehicle seat that is used outdoors and may be exposed to wind and rain. Fig. 24 is a bottom view of a cushion pad 1121 used in a seat cushion of a vehicle seat S11 as seen from below, and Fig. 25 is a partially enlarged view showing a portion A of Fig. 24. Fig. 26A is a cross-sectional view taken along line AA in Fig. 25, and is a diagram schematically showing an upper mold 1131 and a lower mold 1132 that mold the cushion pad 1121. Fig. 26B is a cross-sectional view taken along line BB in Fig. 25, and is a diagram schematically showing a mold that molds the cushion pad 1121 at a portion where a joint 1124 is present.

[0093] In order to hang the upholstery material in the seat cushion of a vehicle seat, a plurality of through holes 1122 for hanging are formed as shown in Fig. 24. However, when the through holes 1122 are formed, there is a problem in that a standing wall is formed at the opening portion (the portion indicated by the circle B in Fig. 26A) during molding, which makes it easy for air to accumulate.

[0094] 24 and 25, in the cushion pad 1121 used in this embodiment, a joint 1124 is provided in the center of the through-hole 1122 used for hanging, thereby improving gas release and preventing air from accumulating around the opening of the through-hole 1122. In other words, by providing the joint 1124 even partially, the molding mold also has no partial walls, improving gas release and preventing air from accumulating. By improving the gas release property, underfill is less likely to occur around the through-hole 1124 for hanging the cushion pad 1121, and the formability of the cushion pad 1121 is improved.

[0095] A recess 1123 for fixing the hanging plate is formed around the through hole 1122. Furthermore, the joint 1124 provided in the through hole 1122 is penetrated by the hanging plate when it is passed through during hanging, so no joint remains.

[0096] <<Twelfth Embodiment>> A twelfth embodiment of the present invention will be described with reference to Figures 27 and 28. The twelfth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that may be exposed to wind and rain. FIG. 27 is a schematic cross-sectional view showing the configuration of a seat back in a conventional vehicle seat, and FIG. 28 is a schematic cross-sectional view showing the configuration of a seat back 1201 of the vehicle seat S12 of this embodiment.

[0097] In conventional vehicle seats, as shown in FIG. 27, the end of the cover material 11212 fastened to the bottom plate 11210 is close to the vehicle frame 11220, and there is a problem in that the cover material 11212 is sandwiched between the bottom plate 11210 and the vehicle frame 11220, causing the cover material to tear.

[0098] 28, the vehicle seat S12 of this embodiment includes a bottom plate 1210, a back pad 1211 placed on the bottom plate 1210, and a cover material 1212 covering the back pad 1211. The cover material 1212 is fixed to the bottom plate 1210 with staples 1213. The bottom plate 1210 is formed with a rib 1214 extending rearward at a position close to the vehicle frame 1220. The skin material 1212 is fastened to the bottom plate 1210 at a position outside the rib 1214. Because the rib 1214 is provided between the end of the skin material 1212 and the vehicle frame 1220, the frame 1220 and the skin material 1212 do not come into direct contact with each other, and the occurrence of skin tears is suppressed.

[0099] <<Thirteenth Embodiment>> A thirteenth embodiment of the present invention will be described with reference to Figures 29 and 30. The thirteenth embodiment relates to a vehicle seat, and more particularly to a vehicle seat that may be exposed to wind and rain. FIG. 29 is a schematic cross-sectional view showing the configuration of a seat back in a conventional vehicle seat, and FIG. 30 is a schematic cross-sectional view showing the configuration of a seat back 1301 of the vehicle seat S13 of this embodiment.

[0100] In conventional vehicle seats, when the seat back 11301 is viewed from behind, the staples 11313 that fasten the cover 11311 to the bottom plate 11310 are visible, as shown in Fig. 29, which has the problem of degrading the exterior design (appearance) of the vehicle seat. To improve the appearance, it is possible to add a cover to hide the staples 11313, but there is a concern that this would increase manufacturing costs due to the increase in parts and assembly processes.

[0101] As shown in FIG. 30, the vehicle seat S13 of this embodiment includes a bottom plate 1310, a back pad 1311 arranged on the bottom plate 1310, and a cover material 1312 that covers the back pad 1311. The bottom plate 1310 is formed with a rib 1314 extending rearward from the position where the edge of a skin would normally be fastened with a staple. The skin material 1312 extends from the edge of the bottom plate 1310 to the tip of the rib 1314, and the edge of the skin material 1312 is bent forward. The edge of the skin material 1312 is fastened by a staple 1313 on the side of the rib 1314.

[0102] Even when the vehicle seat S13 is viewed from behind, the direction in which the staples 1313 fasten the upholstery material 1312 is rotated by 90 degrees from the conventional direction, so that the staples 1313 are not directly visible, and the appearance of the back of the seat back 1301 can be improved. In addition, the bottom plate 1310 can be reinforced by adding ribs 1314 to the bottom plate 1310.

[0103] <<Fourteenth Embodiment>> Next, a fourteenth embodiment of the present invention will be described with reference to Figures 31 to 34. The fourteenth embodiment relates to a vehicle seat, and particularly to a vehicle seat that may be exposed to wind and rain outdoors.

[0104] Conventionally, vehicle seats are composed of a bottom plate, a padding placed on the bottom plate, and a cover covering the padding. Hooks are provided around the bottom surface of the bottom plate to fasten the cover. The cover wraps around the edge of the padding placed on the bottom plate and is hooked onto the hooks. Typically, the hooks are formed symmetrically about an axis perpendicular to the hooking direction. However, conventional hooks do not take into consideration the direction in which the upholstery is hooked, and there has been a demand for a hook shape that makes it easier to hang up the upholstery. For example, after hooking the hole in the skin, the hook is pushed in to secure it, but if the hook is formed symmetrically, there is insufficient space to push the skin in, making it difficult to push in, and the skin may not be fully hooked (half-hooked).

[0105] In the following, a motorcycle seat 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 motorcycle seats, and may also be applied to seats for four-wheeled or three-wheeled vehicles mounted on ground-traveling vehicles with wheels such as automobiles and trains, or seats mounted on aircraft, ships, and other vehicles that travel other than on land.

[0106] Fig. 31 is a perspective view showing the bottom surface of the motorcycle seat S14 of this embodiment, and Fig. 32 is a partially enlarged perspective view showing a portion A of Fig. 31. Fig. 33 is a side view showing the configuration of a hook 1420, and Fig. 34 is an explanatory diagram for explaining the procedure for hanging the cover material 1412 on the hook 1420.

[0107] The motorcycle seat S14 is a seat used for, for example, a motorcycle. The motorcycle seat S14 is composed of a bottom plate 1410, a cushion pad 1411 as a cushioning material placed on the bottom plate 1410, and a cover material 1412 that covers the cushion pad 1411 (see FIG. 34).

[0108] The bottom plate 1410 is a member that serves as the base of the motorcycle seat S14, and as shown in FIG. 31, a plurality of hooks 1420 for hanging a cover are provided around the periphery of the bottom surface. The cushion pad 1411 is, for example, a urethane pad formed by foam molding using a urethane foaming agent.

[0109] The cover material 1412 is a member that covers the bottom plate 1410 with the cushion pad 1411 placed thereon, and is fixed by being hung on a plurality of hooks 1420 provided around the bottom surface of the bottom plate 1410. The covering material 1412 is made up of a base fabric and a surface material placed on its surface. The base fabric is made of, for example, a fabric made of woven fibers. The surface material is made of a waterproof material. In this embodiment, polyvinyl chloride (PVC) is used as the waterproof material. By using polyvinyl chloride as the surface material, it is possible to maintain waterproofness while applying surface treatment to make it usable as synthetic leather. The surface material may also be made of polyethylene or polyurethane.

[0110] Hereinafter, the side where the worker hangs the covering material 1412 on the hook 1420 will be referred to as the back side, and the opposite side will be referred to as the front side. A plurality of hooks 1420 for hanging the covering material 1412 are provided on the bottom surface of the bottom plate 1410, as shown in FIG. Hook 1420 of this embodiment is composed of a pillar 1421 standing upright from the bottom surface and a hook head 1422 provided at the top of the pillar 1421. Hook head 1422 is shaped so that the height H1 on the back side is different from the height H2 on the front side, as shown in Fig. 33 . More specifically, the height H1 from the surface of the bottom plate 1410 to the underside of the hook head 1422 located at the back is formed to be lower than the height H2 to the underside of the hook head 1422 located at the front.

[0111] In addition, the length L1 to the tip of the hook head 1422 located at the back side is different from the length L2 to the tip of the hook head 1422 located at the front side, and is configured so that the length L1 on the back side is shorter than the length L2 on the front side.

[0112] If the height H1 on the far side and the height H2 on the near side are the same, the hook angle becomes gentle, and when the covering material is pushed in, the covering material may stop midway and only be partially hooked. By making the height H2 on the front side higher than the height H1 on the back side, it is possible to ensure a pushing space for pushing in the covering material 1412, as shown in Fig. 34. Furthermore, by making the height H2 on the front side higher, the angle of the hook 1420 becomes steeper, making it difficult for the covering material 1412 to stay in place and more likely to slide off.

[0113] When hanging the cover material 1412, after hanging the back side of the hooking hole, pull strongly in the direction of arrow A in Fig. 34. Once the front side of the hooking hole passes the front side of the hook head, pull (push) strongly in the direction of arrow B in Fig. 34 to hang the cover material 1412. Because it is easy to hang the hook on the hook hole, it is possible to prevent the cover material 1412 from being only partially hung. The structure of the hook 1420 of this embodiment for hanging the cover material 1412 is not limited to application to only two-wheeled vehicle seats, but can also be applied to seats for four-wheeled vehicles.

[0114] The first to fourteenth embodiments of the present invention have been described above with reference to the drawings. As an example of the present invention, a vehicle seat used in a four-wheeled buggy that is directly exposed to wind and rain has been given, and an example of its configuration has been described. However, the present invention may also be applied to vehicle seats that are not directly exposed to wind and rain. Furthermore, the present invention is not limited to ground-traveling vehicles with wheels, such as automobiles and trains, and vehicle seats installed therein, but may also be applied to aircraft and ships that move other than on land, and vehicle seats installed therein. [Explanation of symbols]

[0115] First Embodiment S1 Vehicle Seat 1 seat back 2 seat cushions 3 Headrest 3a Bottom side 4 Ratchet mechanism 10 Bottom plate (back material) 11 Back Pad 12 Skin material 13 Connection 14 Connecting member 15 recess 15a bottom 19 Slope 21 Cushion pad 22 Skin material 30 Headrest support material 31 Headrest pad 32 Skin material 33 Shaft support part 34 Bend 41 Cam 42 Rotating shaft 43 Claw 44 teeth 45 Wall 45a,45b Contact point 46 Blindfold C Gap Second Embodiment S2 Vehicle Seat 201 Seatback 210 bottom plate 211 Engagement hole 220a~220d Back member 221 Cushion 222 Skin material 223 Cushion support member 224 Staples 225 Claw Third Embodiment S3, S3A vehicle seats 301, 301A seat back 302, 302A seat cushion 310A Bottom Plate 311, 311A ​​pad material 312, 312A Skin material 313 Cylindrical members 314 Cavity 315 Through hole <Fourth embodiment> S4 Vehicle Seat 402 seat cushion 420 bottom plate 420a fixed corner 421 First Pad 422 Second Pad 423 Skin material 424 Staples Fifth Embodiment S5 Vehicle Seat 501 seat back 504 Seat back components 510 bottom plate 511 Pad material 512 Skin material 513 Base material 515 Support member 516, 516A stopper 517, 518 Hinge Sixth Embodiment 612 Skin material 613 Cushion 614 recess 630 Welder Seventh Embodiment S7 Vehicle Seat 701 seat back 701a Recess 702 seat cushion 704 Seatbelt 705 Decoration Line 711 Back Pad 712 Skin material Eighth Embodiment 810 Printing device 812 Skin material 813 First color logo mark 814 Two-color logo mark 815 seam allowance 816 1st seal 817 2nd seal 818 Discarded part 821 Silkscreen for first color 822 Second color silk screen Ninth Embodiment S9 Vehicle Seat 901 seat back 902 seat cushion 910 hook and loop fastener 930 hook and loop fastener Tenth Embodiment S10 Vehicle Seat 1002 seat cushion 1020 bottom plate 1021 Cushion Pad 1022 Skin material 1024 hook and loop fastener Eleventh Embodiment S11 Vehicle Seat 1121 Cushion Pad 1122 Through hole 1123 recess 1124 Jumpsuit 1131 Upper mold 1132 Lower mold Twelfth Embodiment S12 Vehicle Seat 1201 seat back 1210 bottom plate 1211 Back Pad 1212 Skin material 1213 Staples 1214 Rib 1220 frames <Thirteenth embodiment> S13 Vehicle seat 1301 seat back 1310 Bottom Plate 1311 Back Pad 1312 Skin material 1313 Staples 1314 Rib <Fourteenth embodiment> S14 Motorcycle seats (vehicle seats) 1410 bottom plate 1411 Cushion pad 1412 Skin material 1420 Hook 1421 Pillar section 1422 Hook head

Claims

[Claim 1] a seat back that supports the back of an occupant; a headrest provided above the seat back and configured to support the head of the occupant; a ratchet mechanism that rotatably connects the headrest to the seat back at a lower end of the headrest and fixes the headrest at a predetermined angle; a backing material that covers the back surface of the seat back and the back surface of the headrest; the headrest is disposed forward of the backing material, and includes a headrest support material that covers the back of the headrest and supports the headrest, the headrest support member is connected to the backing material by a connecting member extending forward from the backing material at a connection portion between the seat back and the headrest, A vehicle seat characterized in that a recess that is recessed forward is formed in the backing material at the connection between the headrest and the seat back, and the connecting member extends forward from the bottom of the recess.

Images