Vehicle seats

Abstract

To provide a vehicle seat that enables an operation for attaching a covering material to a bottom plate to be effectively performed.SOLUTION: A vehicle seat 1 is configured such that a cushion material 20 disposed on a bottom plate 10 is covered with a covering material 30 and that a terminal portion of the covering material 30 is attached to a back surface of the bottom plate 10. The covering material 30 includes: a surface side covering material 31 covering a surface of the cushion material 10; and a back surface side covering material 33 attached to a terminal portion of the surface side covering material 31 and extending so as to cover a portion of the back surface of the bottom plate 10. The back surface side covering material 33 has stretchability lower than that of the surface side covering material 31 and includes an engagement hole 34 with which an engagement pawl disposed on the back surface of the bottom plate 10 is engaged.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat, and more particularly to a saddle-ride type vehicle seat used for motorcycles, snow bikes, personal watercraft, all-terrain vehicles (buggys), and the like. [Background technology]

[0002] Conventionally, in saddle-type vehicle seats that are constructed by covering a cushion material placed on a bottom plate with a skin material, a method has been used in which the bottom plate is wrapped with the skin material and then the edge of the skin material is fixed using staples or the like. In more detail, first, the end portion of the upholstery is temporarily fastened to the back surface of the bottom plate with a stapler to fix the position of the upholstery material, and then the upholstery material is pulled so as not to cause wrinkles or slack on the surface of the vehicle seat, and then the stapler is used again to permanently fasten (fix) it. In this context, a technique has been proposed that allows for efficient attachment of the skin end portion to the rear surface of the bottom plate (see, for example, Patent Document 1).

[0003] The vehicle seat described in Patent Document 1 is formed with rod-shaped temporary fastening portions that protrude from the back surface of the bottom plate (seat bottom plate) and engage with holes provided in the edge portion of the skin, and temporary fastening support portions that support the tip of the temporary fastening portion when the temporary fastening portion is in a folded state. In the above configuration, the worker temporarily fastens the skin end portion by engaging the skin end portion with the temporary fastening portion and bending the temporary fastening portion around the entire circumference of the skin material, and then permanently fastens the skin end portion by driving tacker needles or the like into the bottom plate at positions outer than the temporary fastening portion. Therefore, the skin end portion can be temporarily fixed to the rear surface of the bottom plate with high stability, and the work of attaching the skin end portion can be carried out efficiently. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-151789 Summary of the Invention [Problem to be solved by the invention]

[0005] However, for a saddle-ride type vehicle seat such as that disclosed in Patent Document 1, there has been a demand for a technology that allows for more efficient attachment of the cover edge portion to the rear surface of the bottom plate.

[0006] Furthermore, in the case of saddle-type vehicle seats, lightweight seats are required, and in order to achieve this, the bottom plate is thinned and a high-rigidity material is used to compensate for this thinning. However, when tacker needles are driven into the bottom plate made of high-rigidity material, there is a risk that the bottom plate will crack. In particular, in emerging countries, the skin material is sometimes replaced for repairs or design changes, and it is common for the tacker needles to be re-driven or additional needles to be driven in to re-fix the skin edge, which requires ingenuity to prevent further cracking of the bottom plate. Therefore, there has been a demand for a method for attaching the skin end portion to the rear surface of the bottom plate that can be fixed without using any staples or the like.

[0007] Book The purpose of the invention is to make it possible to efficiently attach the skin material (skin end part) to the bottom plate. Na-jo To provide a seat for a vehicle 。 [Means for solving the problem]

[0008] The vehicle seat of the present invention solves the above-mentioned problem by covering a cushion material arranged on a bottom plate with a skin material, and attaching an end portion of the skin material to the back surface of the bottom plate, wherein the skin material includes a surface-side skin material that covers the surface of the cushion material, and the end portion of the skin material has: Located in the center of the seat width,The cut is made toward the surface side skin material. Multiple A notch is provided The bottom plate is provided with an engaged portion that is disposed at a center portion in the seat width direction and engages with an end portion of the upholstery material, and the engaged portions are disposed at intervals along an outer edge portion of the bottom plate when the vehicle seat is viewed from the backside, and include a first engaged portion that is disposed at the center portion of the outer edge portion of the bottom plate, and a second engaged portion and a third engaged portion that are disposed so as to sandwich the first engaged portion, and the notch portion is disposed so as to be aligned with the first engaged portion, the second engaged portion, and the third engaged portion along the outer edge portion of the bottom plate at intervals when the vehicle seat is viewed from the backside, and is disposed so as not to be aligned with any of the first engaged portion, the second engaged portion, and the third engaged portion along the direction from the outer edge toward the center portion of the bottom plate. This is solved by: In this case, it is preferable that the engaged portions and the notches are arranged alternately along the outer edge of the bottom plate. Also The cutouts may be formed so that the width narrows from the end side of the skin toward the front side skin. The cutouts have a triangular shape and are provided at intervals along the outer edge of the bottom plate. The maximum width of each of the triangular cutouts is smaller than the width of the terminal portion between adjacent triangular cutouts. That's good. The cutout may be provided in a portion of the skin that is to be hooked onto the bottom plate. Also, Complex The plurality of engaged portions are preferably arranged side by side in the seat width direction and are arranged symmetrically with respect to the center line of the bottom plate in the seat width direction as a reference line. Ma Ta, Complex Preferably, the plurality of engaged portions protrude from the rear surface of the bottom plate, and the protruding tip surfaces of the plurality of engaged portions are flat.

[0009] In this case, the back surface side skin material comprises a first back surface side skin material attached to an end portion of the front surface side skin material and extending to cover at least one of the back surface of the cushion material and a portion of the back surface of the bottom plate, and a second back surface side skin material attached to an end portion of the first back surface side skin material and extending to cover a portion of the back surface of the bottom plate, and the second back surface side skin material has lower elasticity than the first back surface side skin material and is provided with the engaging portion. As described above, by using at least three types of skin materials with different elasticity, the skin material can more easily conform to the contours of the seat surface, and the attachment strength of the skin material (skin edge portion) can be increased. Furthermore, since it is easier to ensure the attachment strength of the skin material without using staples or the like, deformation and cracking of the bottom plate are further suppressed, allowing for more stable attachment.

[0010] In this case, it is preferable that the first back surface side skin material extends to cover the surface of the back surface of the bottom plate that is close to the outer edge of the bottom plate and that does not have the engaged portion formed thereon. By clarifying the positional relationship of the three types of skin materials with different elasticity as described above, the skin materials can more easily follow the contours of the seat surface, making it easier to increase the attachment strength of the skin edge portions.

[0011] In this case, the back surface side skin material has an engagement hole as the engagement portion that engages with the engagement claw as the engaged portion, and the engagement claw has a claw main body portion that protrudes from the back surface of the bottom plate, and a first claw portion and a second claw portion that protrude in opposite directions from the protruding end of the claw main body portion, and the second claw portion is preferably positioned at a position farther from the back surface of the bottom plate than the first claw portion. With the above-described configuration, the skin end portion can be attached to the rear surface of the bottom plate by a simple engagement method using the engagement claws and engagement holes. In more detail, when attaching the engagement hole of the skin end portion to the engagement claw, if the engagement hole is hooked from the first claw side and then pushed in from the second claw side, the hooking and pushing operations of the engagement hole become easier and the attachment strength of the skin end portion can also be increased.

[0012] In this case, the engaging claw extends elongatedly in a direction from the outer edge of the bottom plate toward the central portion, the first claw portion protruding from the claw main body portion toward the central portion of the bottom plate, and the second claw portion protruding from the claw main body portion toward the outer edge of the bottom plate. The above-described configuration makes it easier to hook and push the engaging claw into the engaging hole. In more detail, due to the stress applied to the skin material when the engaging hole in the skin end portion is hooked onto the engaging claw, the engaging hole is first hooked onto the first claw portion at the back side of the engaging claw (towards the center of the bottom plate), and then pressed down by the second claw portion at the front side of the engaging claw (towards the outer edge of the bottom plate), which makes the installation work even easier.

[0013] In this case, the engaging claws are preferably formed on a surface of the back surface of the bottom plate that is close to the outer edge of the bottom plate and that extends while abutting against the back surface of the cushion material. With the above-described configuration, it is possible to provide a structure in which the engaging holes are less likely to come off the engaging claws due to the stress applied to the covering material when the engaging holes are hooked onto the engaging claws. When the engaging holes are engaged with the engaging claws, stress is normally applied to the skin material in a direction along the bottom surface of the bottom plate, from the center toward the outer edge of the bottom plate.

[0014] In this case, it is preferable that a plurality of the engaging claws and engaging holes are formed, and that a notch is formed between the plurality of engaging holes formed in the terminal portion of the back surface side skin material, the notch being cut from the terminal of the back surface side skin material toward the front surface side skin material. With the above-described configuration, when the skin end portion is wrapped around the bottom plate and attached, it is possible to further prevent the skin material from wrinkling or loosening. In particular, by forming a cutout in the rear surface skin material at a portion corresponding to the curved portion of the bottom plate, it is possible to further suppress the occurrence of wrinkles and sagging in the skin material.

[0015] In this case, it is preferable that the engagement hole be positioned closer to the center of the bottom plate than the joining portion of the back surface side skin material that is joined to the front surface side skin material or to a skin material located on the side of the front surface side skin material. As described above, the joining portion and the engagement hole are arranged at different positions in the back surface side skin material, so that interference between them can be suppressed and the skin end portion can be stably attached to the back surface of the bottom plate.

[0016] In this case, it is preferable that a folded portion be formed on the outer edge of the bottom plate so as to extend so as to protrude toward the opposite side to the cushion material, and that the surface of the folded portion that abuts against the skin material be curved. With the above-described configuration, it is possible to prevent damage or tearing of the skin portion of the skin material that abuts against the surface of the outer edge of the bottom plate.

[0017] In this case, it is preferable that a plurality of reinforcing ribs are formed on the surface of the bottom plate at intervals in a predetermined direction and extending in a direction intersecting the predetermined direction, and a plurality of through holes are arranged at positions different from the reinforcing ribs, and are formed over almost the entire surface of the bottom plate. With the above-described configuration, the drainage, breathability, and heat dissipation properties of the seat can be improved while ensuring the rigidity of the bottom plate. [Effects of the Invention]

[0018] According to the present invention, Bo This allows for a vehicle seat that allows for efficient attachment of the skin edge to the tom plate. 。 [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a side view showing a vehicle seat according to an embodiment of the present invention; [Figure 2] FIG. 2 is an exploded perspective view of a bottom plate, a cushion material, and a cover material. [Figure 3] FIG. 2 is a perspective view of the seat as viewed obliquely from below, illustrating a state before an end portion of a cover material is attached. [Figure 4] FIG. 2 is a perspective view of the seat as viewed obliquely from below, showing a state in which an end portion of a cover material has been attached. [Figure 5] FIG. 10 is a rear view of the sheet, showing a cutout portion provided at an edge portion of the skin. [Figure 6] 5 is an enlarged view of a main part of FIG. 4, showing details of a vertically oriented engaging claw. FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6. [Figure 8] 5 is an enlarged view of a main part of FIG. 4, showing details of a lateral engagement claw. FIG. [Figure 9] 9 is a cross-sectional view taken along line IX-IX of FIG. 8. [Figure 10] FIG. 10 is a perspective view showing a bottom plate of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle seat according to an embodiment of the present invention will now be described with reference to FIGS. This embodiment relates to an invention of a saddle-type vehicle seat that is configured by covering a cushion material placed on a bottom plate with a skin material and attaching an end portion of the skin material to the underside of the bottom plate, and that the skin material comprises a top-side skin material that covers the surface of the cushion material and a back-side skin material that is attached to the end portion of the top-side skin material and extends to cover part of the underside of the bottom plate, and that the back-side skin material has lower elasticity than the top-side skin material and has engagement holes that engage with engagement pawls provided on the underside of the bottom plate.

[0021] As shown in Figures 1 and 2, the vehicle seat 1 of this embodiment is a seat that forms the seating portion of a motorcycle, and is attached to the vehicle body B and is mainly composed of a bottom plate 10 that serves as a base substrate, a cushion material 20 placed on the bottom plate 10, and a cover material 30 that covers the bottom plate 10 and the cushion material 20. In the vehicle seat 1, as shown in Figures 3 and 4, the upholstery end processing is performed by attaching the engagement holes 34 provided at the end portion of the upholstery material 30 to the engagement claws 15, 16 provided on the back surface of the bottom plate 10, and an attachment method is adopted that does not use tacker needles or the like.

[0022] As shown in FIGS. 2 to 4, the bottom plate 10 is a plate that is long in the front-rear direction of the seat, and is a base substrate of the seat 1 that is formed in a curved shape to match the outer shape of the vehicle body B. The bottom plate 10 is formed as a synthetic resin molded product made from a resin material having a relatively high flexural modulus, such as glass fiber reinforced polypropylene (GFPP). The bottom plate 10 is preferably made of a resin material with a relatively high rigidity, but is not particularly limited to this, and conventional raw materials such as polypropylene and polyethylene may also be used.

[0023] The bottom plate 10 is mainly composed of a plate main body portion 10a which serves as the main body portion, and a plate outer peripheral portion 10b which serves as a flange portion formed by bending the outer peripheral portion of the plate main body portion 10a obliquely downward. On the surface of the plate main body 10a, rectangular reinforcing recesses 11 are formed, which are arranged on the left and right sides with a gap in the seat width direction and are long in the front-to-back direction of the seat, a plurality of reinforcing ribs 12 which extend in the seat width direction on the reinforcing recesses 11 and are arranged to partition the reinforcing recesses 11, and a plurality of through holes 13 which are arranged to surround the reinforcing recesses 11 and the reinforcing ribs. Further, left and right vehicle body mounting portions 14 that are rotatably mounted to the vehicle body B are formed on the rear surface of the plate main body portion 10a in the seat front portion. On the back surface of the plate outer peripheral portion 10b, a plurality of vertically oriented engaging claws 15 and horizontally oriented engaging claws 16 are formed at predetermined intervals over substantially the entire outer peripheral portion of the bottom plate 10 so as to protrude from the back surface. In addition, in the back surface of the bottom plate 10, in the portion opposite to the portion where these engaging claws 15, 16 are formed, a through hole is formed to match the outer shape of these engaging claws 15, 16, making it easier to mold the bottom plate 10. The vertical engaging claws 15 and the horizontal engaging claws 16 will be described in detail later.

[0024] As shown in FIGS. 2 to 4, the cushion material 20 is made of an elastic material such as urethane foam, is a cushion pad that is long in the front-rear direction of the seat, and is formed slightly larger than the outer shape of the bottom plate 10. In detail, the cushion material 20 has a cushion main body portion 21 which is the main body portion, and a cushion protrusion portion 22 which protrudes from the outer peripheral portion of the cushion main body portion 21 and extends along the surface of the plate outer peripheral portion 10b of the bottom plate 10. As shown in FIG. 3, the cushion protrusion 22 is provided so as to surround the bottom plate 10 from the outside over substantially the entire periphery.

[0025] As shown in Figures 2 to 4, the skin material 30 is a covering material that forms the appearance of the sheet 1, and is composed of a front-side skin material 31, a first back-side skin material 32 attached to an end portion of the front-side skin material 31, and a second back-side skin material 33 attached to an end portion of the front-side skin material 31 or an end portion of the first back-side skin material 32, and is made up of these three types of skin materials with different elasticity.

[0026] The surface skin material 31 is made of a covering material using polyvinyl chloride leather or the like, and more specifically, is formed by bonding a soft polyvinyl chloride layer to the surface of a fabric such as knitted fabric. The first back surface side skin material 32 is made of a covering material with lower elasticity than the front surface side skin material 31, and is formed of, for example, a mesh fabric such as Queen's Court. More specifically, it is formed by laminating a soft polyvinyl chloride layer onto the surface of a fabric such as knitted fabric. The second back surface side skin material 33 is made of a covering material with even lower stretchability than the first back surface side skin material 32, and is formed, for example, from a polyvinyl chloride-based fabric such as tarpaulin. More specifically, it is formed by impregnating a woven fabric such as a base fabric with soft polyvinyl chloride. When a tensile test is conducted based on JIS K 7127 (Plastics - Testing method for tensile properties), it is desirable that the elongation (elongation rate) of the front surface skin material 31 is about 150% or more, preferably about 150% or more and about 200% or less, the elongation of the first back surface skin material 32 is about 50% or more and about 100% or less, and the elongation of the second back surface skin material 33 is about 30% or less, preferably about 10% or more and about 30% or less.

[0027] In the above-described configuration, by using polyvinyl chloride leather or the like as the material for the surface side skin material 31, it becomes a suitable material for a skin material for a motorcycle that is directly exposed to wind and rain. Furthermore, by forming the first back surface side skin material 32 from a mesh material, it is possible to reduce the weight of the skin material and improve drainage and breathability. Furthermore, by forming the second back surface side skin material 33 from a material that is relatively difficult to stretch, it is possible to ensure the attachment strength of the skin material 30 while maintaining the design of the sheet surface (while preventing wrinkles and looseness).

[0028] As shown in FIG. 2, the front surface skin material 31 is formed to fit the outer shape of the cushion material 20 and is disposed so as to cover the surface of the cushion material 20 . A first back surface side skin material 32 or a second back surface side skin material 33 is attached by sewing to the skin end portion of the front surface side skin material 31 over substantially the entire periphery. More specifically, of the skin terminal portions of the surface side skin material 31, a second back side skin material 33 is attached to the front terminal portion 31a located on the front side of the seat, and a first back side skin material 32 is attached to the side terminal portion 31b located on the side of the seat and the rear terminal portion 31c located on the rear side of the seat. In addition, a second back surface side skin material 33 is attached by sewing to the end portion of the skin of the first back surface side skin material 32 other than the portion to which the front surface side skin material 31 is attached.

[0029] As shown in Figures 2 to 4, the first back surface side skin material 32 extends from the outer end attached to the skin terminal portion of the front surface side skin material 31 toward the inside (center) of the bottom plate 10 so as to cover the back surface of the cushion material 20 and part of the back surface of the bottom plate 10. In other words, the first back surface side skin material 32 has a portion arranged to cover only the back surface of the cushion material 20, and a portion arranged to cover the back surface of the cushion material 20 and part of the back surface of the bottom plate 10. More specifically, the outer edge of the first back surface side skin material 32 is disposed along the outer edge of the back surface of the cushion material 20. The inner edge (skin terminal portion) of the first back surface side skin material 32 has a portion disposed along the outer edge (outer peripheral edge) of the back surface of the bottom plate 10, and a portion disposed so as to cover part of the back surface of the bottom plate. More specifically, a portion of the first back surface side skin material 32 extends to cover the surface of the back surface of the bottom plate 10 that is close to the outer edge of the bottom plate 10 and on which the engaging claws 15, 16 are not formed. Specifically, the first back surface skin material 32 is disposed in the seat rear portion on the side of the bottom plate 10 so as to cover the back surface of the cushion material 20 and part of the back surface of the bottom plate 10 .

[0030] As shown in Figures 2 to 4, the second back surface side skin material 33 extends from its outer end attached to the front surface side skin material 31 or the first back surface side skin material 32 located on the side of the front surface side skin material 31 toward the inside (center) of the bottom plate 10 so as to cover part of the back surface of the bottom plate 10. More specifically, the second back surface skin material 33 extends toward the center of the bottom plate 10 beyond the engaging claws 15, 16 provided on the back surface of the bottom plate. In the skin terminal portion (inner end portion) of the second back surface side skin material 33, an engagement hole 34 for engaging the engagement claws 15, 16 is formed in the portion corresponding to the engagement claws 15, 16. The engagement holes 34 are generally circular through holes, and are formed at predetermined intervals along the entire circumference of the skin edge portion of the second back surface side skin material 33 .

[0031] In the above configuration, as shown in FIG. 5, a notch 35 is formed between the plurality of engagement holes 34 formed in the front portion of the second back surface side skin material 33, cutting from the end of the second back surface side skin material 33 toward the front surface side skin material 31. That is, the second back surface side skin material 33 has a notch 35 formed in a portion corresponding to the curved portion of the bottom plate 10. Therefore, when the skin end portion is hooked onto the rear surface of the bottom plate 10, the occurrence of wrinkles and slack in the skin material 30 can be further suppressed.

[0032] In the above configuration, as shown in FIGS. 2 and 4, the engagement hole 34 is formed in the surface of the second back surface material 33 that is formed so as to extend from the sewn portion that is the starting point for wrapping. Therefore, when the engagement holes 34 are hooked onto the engagement claws 15, 16, stress is normally applied to the skin material 30 in a direction along the bottom surface of the bottom plate 10 from the center side toward the outer edge side of the bottom plate 10, but this makes it easier to ensure engagement strength.

[0033] In the above configuration, as shown in Figures 5 and 7, the engagement hole 34 is positioned closer to the center of the bottom plate than the portion of the second back surface side skin material 33 that is sewn to the front surface side skin material 31 or the first back surface side skin material 32. More specifically, the engagement hole 34 is formed at a distance of about 15 mm or more from the sewn portion of the second back surface material 33. Therefore, interference between the engagement hole 34 and the sewn portion can be suppressed, and the skin end portion can be stably attached to the rear surface of the bottom plate 10.

[0034] In the above configuration, as shown in FIG. 2, the engagement holes 34 are formed continuously at predetermined intervals on the surface of the second back surface side skin material 33, which has the least elasticity (is least stretchable) among the skin materials 30. Therefore, the second back surface side skin material 33 can easily contact the back surface of the bottom plate 10 by a surface rather than a line, and the continuous surface of the second back surface side skin material 33 can easily distribute the stress applied to the skin material 30. As a result, the skin material 30 can be stably engaged with the engaging claws 15, 16 on the back surface of the bottom plate 10, and the attachment strength of the skin material 30 can be increased.

[0035] <Details of the engagement claws> Next, the vertically oriented engaging claws 15 and the horizontally oriented engaging claws 16 formed on the outer periphery of the rear surface of the bottom plate 10 will be described in detail. As shown in FIGS. 4 to 7, the vertical engagement claw 15 is formed in a substantially T-shape and extends elongatedly from the outer edge of the bottom plate 10 toward the center thereof. Specifically, as shown in Figures 6 and 7, the vertical engagement claw 15 has a claw main body portion 15a protruding from the back surface of the bottom plate 10, and a first claw portion 15b and a second claw portion 15c protruding from the protruding end of the claw main body portion 15a in opposite directions in a perpendicular direction perpendicular to the protruding direction of the claw main body portion 15a. In detail, the first claw portion 15b protrudes from the protruding end of the claw main body portion 15a toward the central portion of the bottom plate 10, and the second claw portion 15c protrudes from the protruding end of the claw main body portion 15a toward the outer edge of the bottom plate 10.

[0036] The first claw portions 15b are disposed closer to the rear surface of the bottom plate 10 than the second claw portions 15c. In other words, the second claw portions 15c are disposed farther from the rear surface of the bottom plate 10 than the first claw portions 15b. In other words, the distance between the first claw portions 15b and the main body portion of the bottom plate 10 is narrower than the distance between the second claw portions 15c and the main body portion. 7, when attaching the engagement hole 34 of the skin end portion to the vertical engagement claw 15, the engagement hole 34 is first hooked from the portion on the first claw portion 15b side (inside the bottom plate 10) and then the portion on the second claw portion 15c side (outside) is pressed in, which makes it easier to hook and press the engagement hole 34 due to the stress applied to the skin material 30. It also increases the attachment strength of the skin end portion. The first claw portion 15b and the second claw portion 15c have rounded corners (corners R) at the ends protruding away from the main body of the bottom plate 10. In other words, the ends of the claw main body 15a, the first claw portion 15b, and the second claw portion 15c form a curved shape (approximately semicircular shape), which makes the hooking and pushing operations into the engagement hole 34 even easier.

[0037] At the outer edge of the bottom plate 10, which is located outside the vertical engagement claws 15, a folded portion 17 is formed, which extends so as to protrude in the opposite direction from the cushion material 20, as shown in Figure 7. The folded portion 17 has a curved surface on the surface that contacts the skin material 30 (second back surface skin material 33). More specifically, the surface of the folded portion 17 has curved shapes on the side surface (outer surface) and bottom surface that come into contact with the skin material 30. Therefore, damage and tearing of the skin portion of the skin material 30 that abuts against the surface of the outer edge of the bottom plate 10 can be suppressed.

[0038] In the above configuration, as shown in Figures 6 and 7, the vertical engagement claws 15 are formed on the back surface of the bottom plate 10, on a surface that is close to the outer edge of the bottom plate 10 and extends while abutting against the back surface of the cushion material 20, and are formed on a surface at a position at least 15 mm away from the outer edge of the bottom plate 10. Therefore, due to the stress applied to the covering material 30 when the engaging holes 34 are hooked onto the vertical engaging claws 15, it is possible to provide a structure in which the engaging holes 34 are less likely to come off the vertical engaging claws 15. When the engagement hole 34 is engaged with the vertical engagement claw 15, stress is normally applied to the skin material 30 in a direction along the bottom surface of the bottom plate 10 from the center toward the outer edge of the bottom plate 10.

[0039] As shown in Figures 4, 8, and 9, the horizontal engaging claw 16 is formed into a roughly T-shaped body and extends so as to be long in a direction intersecting the direction from the outer edge of the bottom plate 10 toward the center. Specifically, as shown in Figures 8 and 9, the horizontal engagement claw 16 has a claw main body portion 16a protruding from the back surface of the bottom plate 10, and a first claw portion 16b and a second claw portion 16c protruding from the protruding end of the claw main body portion 16a in opposite directions in a perpendicular direction perpendicular to the protruding direction of the claw main body portion 16a. In more detail, as shown in Figure 8, the horizontal engagement claw 16 is positioned between two adjacent vertical engagement claws 15, and the first claw portion 16b is positioned on the side of the vertical engagement claw 15 that is located farther away from the two adjacent vertical engagement claws 15. The second claw portion 16c is disposed on the side of the vertically oriented engaging claw 15, which is located closer to the second claw portion 16c.

[0040] More specifically, as shown in Figure 8, the horizontal engagement claw 16 is arranged on an inclined surface on the back surface of the bottom plate 10 that is slightly inclined in a predetermined direction, and the first claw portion 16b is arranged at a lower position on the inclined surface when the bottom plate 10 is turned over and viewed from the back side. The second claw portion 16c is located at the upper side of the inclined surface when the bottom plate 10 is turned over and viewed from the rear side.

[0041] As described above, the bottom plate 10 has a combination of vertically oriented engaging claws 15 and horizontally oriented engaging claws 16 formed on the back surface thereof. When the engaging holes 34 of the skin end portion are hooked onto these engaging claws 15, 16, the horizontally oriented engaging claws 16 are arranged in locations where a relatively large stress is applied to the skin material 30. Although this slightly reduces the efficiency of the work of attaching the skin end portion, it is possible to prioritize and ensure attachment strength. In particular, in this embodiment, the vertically oriented engaging claws 15 are formed at 24 locations and the horizontally oriented engaging claws 16 are formed at 26 locations in total, in the arrangement pattern shown in FIG. The above arrangement pattern improves the efficiency of the work of attaching the skin edge portion and ensures the strength of the attachment. Also, while conventional tacker needle fixing requires about 40 tacker needles, this configuration allows the number of engaging claws 15, 16 to be reduced. The arrangement pattern and number of the vertically oriented engaging claws 15 and the horizontally oriented engaging claws 16 are not particularly limited and can be changed.

[0042] When the engaging claws 15, 16 are engaged with the engaging holes 34, stress is normally applied to the covering material 30 from the center toward the outer edge of the bottom plate 10 in a direction along the bottom surface of the bottom plate 10. Furthermore, when the motorcycle is running, stress may also be applied to the covering material 30 from the outer edge toward the center of the bottom plate 10. Therefore, when the motorcycle is running, due to the stress applied to the cover material 30, the lateral engaging claws 16 function more effectively in terms of the attachment and retention of the cover end.

[0043] <Second embodiment of bottom plate> Next, a bottom plate 110 according to a second embodiment will be described with reference to Fig. 10. In the following description, the same content as that of the bottom plate 10 will be omitted. The bottom plate 110 differs from the bottom plate 10 in that it has a shape that makes the seat lighter and improves the breathability of the seat.

[0044] On the surface of the bottom plate 110, a plurality of reinforcing recesses 111 are provided at intervals in the seat width direction and are long in the front-to-rear direction of the seat, a plurality of reinforcing ribs 112 are arranged on the reinforcing recesses 111 in the seat width direction and so as to partition the reinforcing recesses 111, and a plurality of through holes 113 are arranged at positions different from the reinforcing ribs 112, and are formed over almost the entire surface. The reinforcing ribs 112 are formed in a lattice pattern in the approximate center of the surface of the bottom plate 110, which is the area where an occupant sits. With the above-described configuration, the rigidity of the bottom plate 110 can be significantly improved, and the drainage, breathability, and heat dissipation properties of the seat can also be improved.

[0045] <Other embodiments> In the above embodiment, as shown in FIG. 2, the covering material 30 is made up of three types of covering materials with different stretchability, but this is not particularly limited and can be changed. For example, the cover may be made of two types of skin materials with different elasticity, or may be made of four or more types of skin materials with different elasticity.

[0046] In the above embodiment, as shown in FIG. 2, the first back surface side skin material 32 is generally attached to the terminal portion of the front surface side skin material 31, and the second back surface side skin material 33 is attached to the terminal portion of the first back surface side skin material 32, but this can be changed without any particular limitation. For example, the first back surface side skin material 32 may be partially (locally) disposed between the front surface side skin material 31 and the second back surface side skin material 33. Also, for example, the second back surface side skin material 33 may be partially disposed.

[0047] In the above embodiment, as shown in Figures 6 and 8, the engagement hole 34 provided at the skin end portion of the skin material 30 is hooked onto the engagement claws 15, 16 provided on the back surface of the bottom plate 10, but the engagement relationship between the engagement hole 34 and the engagement claws 15, 16 is not particularly limited and can be changed. For example, it is sufficient that a known engaging portion provided on the skin edge portion is engaged with a known engaged portion provided on the rear surface of the bottom plate 10 . Specific examples of the relationship between the engaging portion and the engaged portion include adhesive, hook shape, J-hook shape, snap-in type, and hook-and-loop fastener.

[0048] In the above embodiment, as shown in Figures 6 and 8, vertically oriented engaging claws 15 and horizontally oriented engaging claws 16 are arranged, but the arrangement and shape of these engaging claws 15, 16, particularly the arrangement and shape of the first claw portions 15b, 16b and the second claw portions 15c, 16c, are not particularly limited and can be changed as appropriate.

[0049] In the above embodiment, the seat 1 has been described as a specific example of a seat for a motorcycle that is directly exposed to sunlight and wind, rain, or snow, but it is not particularly limited to this and can also be used as a seat for saddle-type vehicles used outdoors, such as snow bikes, jet skis, and all-terrain vehicles (ATVs). Furthermore, the seat can be used as a saddle-type vehicle seat on which the occupant sits astride, as well as a vehicle seat for automobiles, trains, buses, etc., and as a vehicle seat for airplanes, ships, etc.

[0050] In this embodiment, the vehicle seat according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. In particular, the shapes, arrangements and configurations of the skin materials and bottom plates with different stretchability described in the above embodiment are merely examples and do not limit the present invention. [Explanation of symbols]

[0051] B. Body (body of the vehicle) 1 seat (vehicle seat) 10,110 Bottom plate 10a Plate body 10b Outer periphery of plate 11,111 Reinforcement recess 12,112 Reinforcing rib 13,113 through holes 14 Body mounting part 15 Vertical engagement claw (engagement claw , engaged portion ) 15a Claw body 15b 1st claw part 15c 2nd claw part 16 Horizontal engagement claw 16a Claw body 16b 1st claw part 16c 2nd claw part 17 Folded section 20 Cushioning material 21 Cushion body 22 Cushion protrusion 30 Skin material 31 Front skin material 31a Front end 31b Side terminal part 31c Rear end 32 1st back side skin material 33 2nd back side skin material (back side skin material) 34 Engagement hole ( Person in charge joint) 35 Notch

Claims

1. A vehicle seat configured by covering a cushion material arranged on a bottom plate with a skin material, and attaching an end portion of the skin material to a back surface of the bottom plate, the cover material includes a surface-side cover material that covers a surface of the cushion material, a plurality of cutouts are provided at the end portions of the skin material, the cutouts being arranged in the center in the sheet width direction and extending toward the front-side skin material; The bottom plate is provided with an engaged portion that is disposed in a center portion in the seat width direction and engages with an end portion of the skin material, When the vehicle seat is viewed from the back side, the engaged portion has are spaced apart along the outer edge of the bottom plate, a first engaged portion disposed at a center of an outer edge portion of the bottom plate; a second engaged portion and a third engaged portion disposed so as to sandwich the first engaged portion therebetween, When the vehicle seat is viewed from the back side, the cutout portion the first engaged portion, the second engaged portion, and the third engaged portion are arranged along an outer edge of the bottom plate at intervals from each other, and A vehicle seat characterized in that it is arranged so as not to be aligned with any of the first engaged portion, the second engaged portion, and the third engaged portion along the direction from the outer edge of the bottom plate toward the center portion.

2. A vehicle seat as described in Claim 1, characterized in that the engaging portions and the notched portions are arranged alternately along the outer edge of the bottom plate.

3. 3. The vehicle seat according to claim 1, wherein the cutouts are formed so as to become narrower from the end of the cover material toward the front cover material.

4. The notches have a triangular shape and are provided at intervals along the outer edge of the bottom plate, 4. The vehicle seat according to claim 3, wherein the maximum width of each of the triangular cutouts is smaller than the width of the terminal portion between adjacent triangular cutouts.

5. 5. The vehicle seat according to claim 3, wherein the notch is provided in a portion of the cover material that is hooked onto the bottom plate.

6. A vehicle seat as described in any one of claims 1 to 5, characterized in that the multiple engageable portions are arranged in a line in the seat width direction and are arranged symmetrically on both sides with the center line of the bottom plate in the seat width direction as the reference line.

7. The plurality of engaged portions protrude from the rear surface of the bottom plate, 7. The vehicle seat according to claim 1, wherein the protruding tip surfaces of the plurality of engaged portions are flat.

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