Fixing structure for cover material in vehicle

Abstract

To enable a cover material to hook on a hook part formed at a base member easily.SOLUTION: In order to fix a cover material 3 to a base member 1 provided at a vehicle, the cover material 3 includes holes 3b each used for fixture to the base member 1. The base member 1 includes hook parts 13 each of which is formed protruding on a rear surface 1b of the base member 1 and inserted through the hole 3b of the cover material 3 to hook thereon. Each hook part 13 has: a first hook piece 15; and a second hook piece 16 whose height from the rear surface 1b of the base member 1 is different from that of the first hook piece 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fixing structure for a cover material used in vehicles such as motorcycles and automobiles. [Background technology]

[0002] In Patent Document 1, for example, when fixing the terminal portion of a cover material that covers the cushioning material of a motorcycle seat to a flange portion of a base plate of the seat, the terminal portion of the cover material is passed through and hooked onto a hook portion formed on the back surface of the flange portion of the base plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-290577 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the cover material needs to cover the cushion material not only for the sake of appearance but also for the sake of safety, so as to prevent bending and displacement. When hooking the end of the cover material onto the hook portion formed on the backside of the flange portion of the base plate, it is initially easy to hook it, but towards the end, the cover material needs to be pulled strongly while hooking, which causes a problem that it becomes increasingly difficult to hook it towards the end.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to make it easier to hook a cover material onto a hook portion formed on a base member. [Means for solving the problem]

[0006] In order to solve the above problems, the invention described in claim 1 is a structure for fixing a cover material to a base member provided in a vehicle, the cover material has holes used for fixing to the base member; the base member includes a hook portion formed to protrude from a rear surface of the base member and to be passed through the hole of the cover material for hooking; The hook portion has a first hook piece and a second hook piece whose height from the rear surface of the base member is different from that of the first hook piece. 、 the hook portion further includes a shaft portion that protrudes from the rear surface of the base member and on which the first hook piece and the second hook piece are provided, The length from the shaft to the tip of the first hook piece is different from the length from the shaft to the tip of the second hook piece. It is characterized by:

[0007] The invention described in claim 2 is A structure for fixing a cover material to a base member provided in a vehicle, the cover material has holes used for fixing to the base member; the base member includes a hook portion formed to protrude from a rear surface of the base member and to be passed through the hole of the cover material for hooking; the hook portion has a first hook piece and a second hook piece whose height from the back surface of the base member is different from that of the first hook piece, One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, The tip portions of the one hook piece and the other hook piece have rounded surfaces on the side opposite the base member, and the curvature of the surface of the tip portion of the other hook piece is greater than the curvature of the surface of the tip portion of the one hook piece. The invention described in claim 3 is as follows: Claim 2 In the fixing structure of the cover material in the vehicle described in the hook portion further includes a shaft portion that protrudes from the rear surface of the base member and on which the first hook piece and the second hook piece are provided, The length from the shaft to the tip of the first hook piece is different from the length from the shaft to the tip of the second hook piece.

[0008] Claim 4 The invention described in claim 1 or 3 In the fixing structure of the cover material in the vehicle described in Of the first hook piece and the second hook piece, the one having a lower height from the back surface of the base member is characterized in that the length from the shank to the tip is shorter than the length from the shank to the tip of the other hook piece having a higher height from the back surface of the base member.

[0009] Claim 5 The invention described in claims 1 to 4 In the fixing structure of the cover material in the vehicle according to any one of the above. Of the first hook piece and the second hook piece, one hook piece having a lower height from the back surface of the base member is characterized in that it is positioned closer to the center of the base member than the other hook piece having a higher height from the back surface of the base member.

[0010] Claim 6 The invention described in claims 1 to 5 In the fixing structure of the cover material in the vehicle according to any one of the above, The surfaces of the first hook piece and the second hook piece facing the base member are parallel to the back surface of the base member.

[0011] Claim 7 The invention described in claim 1 In the fixing structure of the cover material in the vehicle described in One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, The tip portions of the one hook piece and the other hook piece have rounded surfaces on the side opposite the base member, and the curvature of the surface of the tip portion of the other hook piece is greater than the curvature of the surface of the tip portion of the one hook piece.

[0012] Claim 8 The invention described in claims 1 to 7 In the fixing structure of the cover material in the vehicle according to any one of the above, One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, the other hook piece is set to a height from the back surface of the base member higher than the one hook piece, a raised portion protruding from the rear surface of the base member is formed at the edge of the base member, The height of the other hook from the rear surface of the base member is greater than the protruding height of the rising portion.

[0013] Claim 9 The invention described in claims 1 to 8 In the fixing structure of the cover material in the vehicle according to any one of the above, The hook portion is characterized in that a plurality of hook portions are formed around the periphery of the base member.

[0014] Claim 10 The invention described in claims 1 to 9 In the fixing structure of the cover material in the vehicle according to any one of the above, The back surface of the base member is formed to have a longitudinal direction and a lateral direction, The hook portions are formed on one and the other longitudinal ends of the rear surface of the base member.

[0015] Claim 11 The invention described in claims 1 to 10 In the fixing structure of the cover material in the vehicle according to any one of the above, The hole is formed along the edge of the cover material. [Effects of the Invention]

[0016] According to the invention described in claim 1, the hook piece that is easier to hook between the first hook piece and the second hook piece, which are at different heights from the back surface of the base member, can be passed through the hole in the cover material first.Therefore, when hooking the cover material onto the hook portion while pulling it, it is easier to hook the cover material onto the hook portion formed on the base member without pulling it too hard. Furthermore, the first hook piece and the second hook piece have different lengths from the shaft to the tip, and the hook piece that is easier to hook can be passed through the hole in the cover material first. Therefore, when hooking the cover material onto the hook portion while pulling it, the cover material can be easily hooked onto the hook portion formed on the base member without being pulled too hard.

[0017] According to the invention described in claim 2, Of the first hook piece and the second hook piece which are different in height from the back surface of the base member, whichever hook piece is easier to hook can be passed through the hole in the cover material first, so that when the cover material is pulled and hooked onto the hook part, the cover material can be easily hooked onto the hook part formed on the base member without being pulled too much. Furthermore, when the other hook piece having a larger curvature of the surface at the tip end is passed through the hole, the cover material tends to slide off, making it easier to hook the cover material onto the hook portion formed on the base member.

[0018] According to the invention described in claim 3, Of the first hook piece and the second hook piece, which have different lengths from the shaft to the tip, the hook piece that is easier to hook can be passed through the hole in the cover material first, so that when the cover material is pulled and hooked onto the hook part, the cover material can be easily hooked onto the hook part formed on the base member without being pulled too hard. According to the invention described in claim 4, Of the first hook piece and the second hook piece, which have different lengths from the shaft to the tip, the hook piece that is easier to hook can be passed through the hole in the cover material first, so that when the cover material is pulled and hooked onto the hook part, the cover material can be easily hooked onto the hook part formed on the base member without being pulled too hard.

[0019] Claim 5 According to the invention described in (1), the other hook piece that is higher from the back surface of the base member is arranged on a side other than the center of the base member (for example, the opposite side). Therefore, once the hole in the cover material is hooked onto the one hook piece that is lower and arranged on the center side, the cover material is less likely to come off the one hook piece, and the other hook piece that is higher can easily be passed through the hole in the cover material.

[0020] Claim 6 According to the invention described above, it is easy to ensure space for hooking the cover material between the surfaces of the first hook piece and the second hook piece facing the base member and the back surface of the base member.

[0021] Claim 7 According to the invention described above, when the other hook piece, which has a larger curvature of the surface at the tip, is passed through the hole, the cover material is more likely to slip off, making it easier to hook the cover material onto the hook portion formed on the base member.

[0022] Claim 8 According to the invention described above, the rising portion is lower in height from the back surface of the base member than the other hook piece, making it easier to secure space for hooking the cover material onto the other hook piece.

[0023] Claim9 According to the invention described above, the cover material hooked onto the multiple hook portions formed around the base member is pulled evenly outward from the base member, thereby enabling the cover material to be stably fixed.

[0024] Claim 10 According to the invention described in (1), the back surface of the base member is formed in a state having a longitudinal direction and a lateral direction, so that the width (length in the lateral direction) of one end and the other end in the longitudinal direction is narrow. Since the hook portion is formed in such a position, even if it is difficult to provide a locking member such as a trim cord on the cover material, the cover material can be easily hooked onto the hook portion formed on the base member.

[0025] Claim 11 According to the invention described in the item (1), the area of ​​the cover material can be made as small as possible, thereby reducing costs. [Brief explanation of the drawings]

[0026] [Figure 1] FIG. 2 is a side view showing the basic configuration of the hook portion. [Figure 2] 3 is a perspective view showing the front and back surfaces of a base member of a vehicle seat for a motorcycle. FIG. [Figure 3] 2(b) is an enlarged perspective view showing a hook portion formed at part A on the rear surface of the base member shown in FIG. 2(b). [Figure 4] 2(b) is an enlarged perspective view showing a hook portion formed at part B on the rear surface of the base member shown in FIG. 2(b). [Figure 5] 2(b) is an enlarged perspective view showing a hook portion formed at a C portion on the rear surface of the base member shown in FIG. 2(b). [Figure 6] FIG. 10 is a side view showing a manner in which the cover material is hooked onto the hook portion. [Figure 7] 1 is a diagram illustrating a fixing structure of a cover material in a vehicle seat for an automobile. [Figure 8] 10A and 10B are diagrams illustrating a fixing structure of a cover material in the interior of an automobile. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

[0028] The vehicle seat described below includes vehicle seats for ships, airplanes, snowmobiles, jet skis, etc., but mainly refers to a vehicle seat, and examples of vehicles include not only straddle-type or non-straddle-type motorcycles and automobiles (passenger cars), but also bicycles, mopeds, construction vehicles, military vehicles, industrial vehicles, railroad vehicles, and agricultural vehicles such as tillers and tractors. An occupant sits in the vehicle seat. In this embodiment, a vehicle seat for a straddle-type two-wheeled motor vehicle (so-called bike, motorcycle, or motor cycle) will be described as an example.

[0029] As shown in Figures 1 to 6, the vehicle seat of this embodiment comprises a base plate 1 (i.e., a base member) fixed to the vehicle body, a cushion material 2 provided on and supported by the upper surface of the base plate 1, and a cover material 3 covering the base plate 1 and the cushion material 2. That is, the vehicle seat is configured such that a cushion material 2 is supported on a base plate 1 and is covered with a cover material 3.

[0030] The base plate 1, also called a bottom plate or cushion support member, is a resin molded product made from resin materials such as polypropylene or polyvinyl chloride, so most of the parts are integrally formed. It is molded to a shape that corresponds to the vehicle body and is attached to the body. Therefore, it is considered to be particularly hard. Accessories such as metal fittings required for fixing to the vehicle body may be attached to the base plate 1 as appropriate, or metal may be inserted during the manufacturing process. In addition, the base plate 1 is formed to be longer in the front-rear direction than in the left-right direction.

[0031] The cushion material 2 is made of a flexible foam material, such as urethane foam, polypropylene foam, or polyethylene foam, and is softer than the base plate 1. Furthermore, since the cushion material 2 is supported on the upper surface of the base plate 1, the lower surface of the cushion material 2 has a shape that easily matches the shape of the upper surface of the base plate 1. This makes it easier for the cushion material 2 to be stably supported by the upper surface of the base plate 1. Furthermore, the surfaces where the base plate 1 and the cushion material 2 come into contact with each other, that is, the upper surface (surface 1a) of the base plate 1 and the lower surface of the cushion material 2, are each set as a reference surface.

[0032] The cover material 3, also called the skin (skin material), constitutes the seating surface of the vehicle seat and is the part that comes into contact with the occupant, and is made of a resin material, synthetic leather, cloth, genuine leather, or the like as appropriate. The terminal portion 3a of the cover material 3 is folded toward the back surface 1b (lower surface) of the base plate 1 and fixed to the base plate 1. The terminal portion 3a of the cover material 3 refers to the entire peripheral edge of the cover material 3. Therefore, the terminal portion 3a of the cover material 3 is fixed to the base plate 1 along the entire peripheral edge. The cover material 3 has holes 3b used for fixing to the base plate 1.

[0033] Next, a structure for fixing the cover material 3 to the base plate 1 in a state in which the cushion material 2 is supported will be described in detail.

[0034] The base plate 1 is formed so that the portion where the occupant sits is lower than other portions in a side view. The area around the portion formed to be lower than other portions corresponds to the position of the sitting bones of the occupant operating the motorcycle, and is the most heavily loaded portion of the seat where the occupant load (occupant load) is greatest.

[0035] Such a base plate 1 generally comprises a central main body plate and a flange portion 10 integrally formed along the periphery of the main body plate. Although there is no clear boundary between the main body plate and the flange portion 10, the flange portion 10 refers to a portion that protrudes outward like a brim. Furthermore, the flange portion 10 not only protrudes outward, but is also formed to extend at an angle relative to the main body plate. In other words, the flange portion 10 is the portion of the periphery of the base plate 1 that is angled differently from the central portion. In addition, the surface of the flange portion 10 having such a shape facing the vehicle body is the back surface (back surface 1b of the base plate 1), and the surface opposite the vehicle body is the front surface (front surface 1a of the base plate 1). As described above, the cushioning material 2 is provided on the front surface.

[0036] Such a flange portion 10 has a front portion 10a located on the front edge side of the base plate 1 and reinforcing the area near the front edge, a rear portion 10b located on the rear edge side of the base plate 1 and reinforcing the area near the rear edge, and left and right side portions 10c, 10d located on the left and right side edges of the base plate 1 and reinforcing the areas near the side edges, and is roughly divided into areas.

[0037] Furthermore, a rising portion 10e protruding from the rear surface 1b of the base plate 1 is integrally formed on the outermost edge of the flange portion 10. The rising portion 10e is provided along the outermost periphery of the entire base plate 1. Such rising portions 10e are called flange ribs or edge ribs, and are formed to improve the rigidity of the flange portion 10 and therefore the entire base plate 1.

[0038] The base plate 1 further has a plurality of reinforcing portions 11 formed on the main body plate portion, and a plurality of load receiving portions 12 formed between the main body plate and the flange portion 10 and on the flange portion 10.

[0039] The reinforcing portions 11 are ridge-shaped and extend in the front-rear and left-right directions when viewed from the front surface side, and are arranged to intersect with each other. In this embodiment, there are three reinforcing portions 11 extending in the front-rear direction and two reinforcing portions 11 extending in the left-right direction. Moreover, when viewed from the front surface side of the base plate 1, each reinforcing portion 11 has adjacent recesses formed therein. The back surface side of each reinforcing portion 11 is formed in a recessed state, and the portions where the reinforcing portions intersect are separated by ribs. Moreover, the recesses when viewed from the front surface side protrude further than the back surface of the reinforcing portion 11 when viewed from the back surface side, and are formed flat.

[0040] The multiple load receiving portions 12 are portions that are located between the base plate 1 and the vehicle body and receive the load of the occupant, and are arranged on the left and right outer sides of the reinforcing portions 11 that extend in the front-to-rear direction. The multiple load receiving portions 12 arranged on the left and right outer sides each include a load receiving portion 12 located on the front side, a load receiving portion 12 located on the central side, and a load receiving portion 12 located on the rear side.

[0041] Here, load receiving portion 12 refers to the portion itself that is fixed to the vehicle body, as well as the elastic member, such as rubber, that is attached to that portion and the portion to which that elastic member is attached. This elastic member is softer than base plate 1, and is fixed to the underside of base plate 1 by, for example, welding. Alternatively, an insertion hole may be formed in base plate 1, and an insertion portion that can be inserted into the insertion hole may be formed in the elastic member of load receiving portion 12, and the elastic member of load receiving portion 12 may be fixed to base plate 1 by inserting and fitting the insertion portion into the insertion hole.

[0042] Of the multiple load receiving portions 12, the load receiving portion 12 located on the central side in the front-to-rear direction is disposed near the maximum load portion of the base plate 1. In other words, the maximum load portion is located between the load receiving portions 12 on the central side on the left and right sides of the base plate 1. Therefore, the load receiving portion 12 on the central side is more likely to receive the occupant load than the front and rear load receiving portions 12. The front load receiving portion 12 is located between the front portions of the side portions 10c, 10d of the flange portion 10 and the reinforcing portion 11 extending in the front-rear direction. The rear load receiving portion 12 is integrally formed with the base plate 1 at the rear portion 10b of the flange portion 10.

[0043] The base plate 1 further includes a plurality of hooks 13 formed integrally with the flange portion 10 and protruding from the rear surface of the flange portion 10.

[0044] The plurality of hook portions 13 are passed through a plurality of holes 3b formed in the terminal portion 3a of the cover material 3 to hook the terminal portion 3a of the cover material 3, and are formed in plurality on each flange portion 10 of the base plate 1. In other words, a plurality of hook portions 13 are formed around the periphery of the base plate 1. The number of the flaps is not particularly limited, but in this embodiment, four flaps are provided on the front portion 10a, three on the rear portion 10b, and eight on each of the left and right side portions 10c and 10d. The number and positions of holes 3b formed in the terminal portion 3a of the cover material 3 correspond to the number of hook portions 13, and by attaching the cover material 3 to the base plate 1 by passing the hook portions 13 through the holes 3b, the flange portion 10 of the base plate 1 and the cushion material 2 can be covered by the cover material 3.

[0045] 1 is a side view showing the basic configuration of hook portion 13, which has a shaft portion 14, a first hook piece 15, and a second hook piece 16. Hook portion 13 is integrally formed as a whole and is integrally formed with base plate 1.

[0046] The shaft portion 14 is a portion that protrudes from the rear surface 1b of the base plate 1, and a first hook piece 15 and a second hook piece 16 are integrally provided at the tip end in the protruding direction. Although the protruding direction of the shaft portion 14 shown in Figure 1 is perpendicular to the back surface 1b of the base plate 1, this is not limited to this and the shaft portion 14 may be inclined relative to the back surface 1b of the base plate 1 (see Figures 3 and 4).

[0047] The first hook piece 15 is a hook piece that protrudes in one direction that intersects with the protruding direction of the shaft portion 14 . The second hook piece 16 is a hook piece that protrudes in another direction that intersects with the protruding direction of the shaft portion 14 . In this embodiment, the first hook piece 15 and the second hook piece 16 protrude in opposite directions with the shaft portion 14 as the boundary.

[0048] The first hook piece 15 and the second hook piece 16 have different heights from the rear surface 1b of the base plate 1. Furthermore, the length from the shaft portion 14 to the tip 15a of the first hook piece 15 and the length from the shaft portion 14 to the tip 16a of the second hook piece 16 are different from each other. More specifically, the first hook piece 15 is taller than the second hook piece 16 from the rear surface 1b of the base plate 1 and has a longer length from the shaft portion 14 to the tip portion 15a.

[0049] The surfaces 15b, 16b of the first hook piece 15 and the second hook piece 16 facing the base plate 1 are parallel to the back surface 1b of the base plate 1. That is, the surface 15b of the first hook piece 15 facing the base plate 1 and the surface 16b of the second hook piece 16 facing the base plate 1 are also parallel to each other. In this embodiment, the surfaces 15b, 16b on the side of the base plate 1 and the back surface 1b of the base plate 1 are parallel, but this is not limited to this, and the surfaces 15b, 16b on the side of the base plate 1 may be concave and curved in a direction away from the back surface 1b of the base plate 1.

[0050] Furthermore, the hook portion 13 itself is arranged on the flange portion 10 which is integrally formed along the periphery of the base plate 1, but the second hook piece 16 is arranged on the central side (main body plate side) of the base plate 1, and the first hook piece 15 is arranged closer to the edge portion (rising portion 10e) of the base plate 1 than the second hook piece 16. That is, the first hook piece 15 is formed to extend outward from the shaft portion 14 , and the second hook piece 16 is formed to extend from the shaft portion 14 towards the center of the base plate 1 .

[0051] As described above, the first hook piece 15 is taller from the back surface 1b of the base plate 1 than the second hook piece 16, but it is also taller from the back surface 1b of the base plate 1 than not only the second hook piece 16 but also the rising portion 10e. The height of the second hook piece 16 from the rear surface 1b of the base plate 1 (height position of the surface 16b) is approximately equal to the height of the rising portion 10e from the rear surface 1b of the base plate 1.

[0052] The surfaces of the tip of the first hook piece 15 and the tip of the second hook piece 16 facing away from the base plate 1 are rounded. As described above, the hook portion 13 is formed as a single unit, so there is no boundary between the shank 14, the first hook piece 15, and the second hook piece 16. Therefore, the surfaces of the first hook piece 15 and the second hook piece 16 facing away from the base plate 1 are rounded as a whole. In other words, the first hook piece 15 and the second hook piece 16 may be referred to as hook heads for the shank 14, and the surfaces of the hook heads facing away from the base plate 1 are rounded.

[0053] Furthermore, the curvature of the surface of tip portion 15a of first hook piece 15 opposite to base plate 1 is set to be larger than the curvature of the surface of tip portion 16a of second hook piece 16 opposite to base plate 1. In other words, tip portion 15a of first hook piece 15 is curved more tightly (sharply curved) than tip portion 16a of second hook piece 16.

[0054] The hook portion 13 configured as described above is formed to protrude from the back surface of the flange portion 10 as described above, but a through hole or a non-through groove is formed on one side and the other side of the base end of the shaft portion 14 of the flange portion 10 (i.e., in the direction in which the first hook piece 15 and the second hook piece 16 protrude). By forming such a through hole or groove, the weight of the base plate 1 can be reduced and the shaft portion 14 can be made more flexible, making it easier to hook the terminal portion 3a of the cover material 3.

[0055] Although the basic configuration of the hook portion 13 is as described above, the shape of the hook portion 13 varies slightly depending on which part of the flange portion 10 of the base plate 1 it is formed on. In other words, it is manufactured to have an optimal shape depending on the position on the base plate 1.

[0056] 3 is the hook portion 13 formed on the front portion 10a of the flange portion 10 of the base plate 1. Compared to the basic configuration, the shaft portion 14 is tilted slightly backward with respect to the back surface 1b of the base plate 1 (flange portion 10), but other parts are formed in the same manner as the basic configuration.

[0057] The hook portions 13 shown in Fig. 4 are hook portions 13 formed on the left side portion 10c of the flange portion 10 of the base plate 1. More specifically, they are two hook portions 13 located on the left side portion 10c behind the front load receiving portion 12. Compared to the basic configuration, the shaft portion 14 is inclined slightly forward with respect to the back surface 1b of the base plate 1 (flange portion 10), but other portions are formed in the same manner as the basic configuration. The number and arrangement of the hook portions 13 formed on the right side portion 10d are the same as the number and arrangement of the hook portions 13 formed on the left side portion 10c, and the shapes are symmetrical.

[0058] The hook portion 13 shown in Fig. 5 is the hook portion 13 formed on the left side portion 10c of the flange portion 10 of the base plate 1. More specifically, it is the hook portion 13 located next to the load-receiving portion 12 located on the central side of the left side portion 10c. Because the back surface 1b of the base plate 1 (flange portion 10) is upright, the hook portion 13 in this location has the first hook piece 15 and the second hook piece 16 oriented in the vertical direction. Furthermore, compared to the basic configuration, the surface of the tip 16a of the second hook piece 16 opposite the base plate 1 is not rounded but is formed at a right angle. This is because the part of the flange portion 10 where the hook portion 13 is formed is upright as described above, and the second hook piece 16 is positioned deeper than other parts (i.e., the distance from the rising portion 10e is longer). Since it is difficult to hook the terminal portion 3a of the cover material 3 onto the hook portion 13 in such a part, care is taken to ensure that this is not done towards the end of the procedure when fixing the cover material 3 to the base plate 1.

[0059] 6 is a side view showing how the cover material 3 is hooked onto the hook portion 13. That is, a method for fixing the end portion 3a of the cover material 3 to the base plate 1 is explained. As described above, holes 3b are formed in the terminal portion 3a of the cover material 3. Because the cover material 3 is made of a resin material, synthetic leather, cloth, genuine leather, or the like, it stretches when pulled, and the holes 3b also deform accordingly. Therefore, when the terminal portion 3a of the cover material 3 is pulled and stretched along the length of the head of the hook portion 13, the holes 3b also deform along the length of the head of the hook portion 13, making it easier to pass the head of the hook portion 13 through. In other words, the terminal portion 3a and holes 3b of the cover material 3 have a certain degree of deformability, in that they deform when pulled and stretched, and return to their original shape when not pulled.

[0060] To fix the terminal portion 3a of the cover material 3 to the base plate 1, the hook portion 13 is passed through a hole 3b formed in the terminal portion 3a. 6, terminal portion 3a is first pulled to elongate and deform hole 3b, and then passed through hole 3b from the side of second hook piece 16. Next, terminal portion 3a hanging on the curved surface of tip end 15a of first hook piece 15 is pushed toward base plate 1, pulling terminal portion 3a to elongate and deform hole 3b, and first hook piece 15 is passed through hole 3b. At this time, since the curvature of the curved surface at the tip 15a of the first hook piece 15 is large, the terminal portion 3a of the cover material 3 easily slides down toward the base plate 1. In addition, since the height of the first hook piece 15 from the back surface 1b of the base plate 1 is greater than the protruding height of the rising portion 10e, the terminal portion 3a of the cover material 3 can be easily pushed in.

[0061] According to this embodiment, the following excellent effects are achieved. That is, the hook portion 13 has a first hook piece 15 and a second hook piece 16 whose height from the back surface 1b of the base plate 1 is different from that of the first hook piece 15, and therefore, of the first hook piece 15 and the second hook piece 16 whose height from the back surface 1b of the base plate 1 is different, whichever hook piece is easier to hook (in this embodiment, the second hook piece 16) can be passed through the hole 3b of the cover material 3 first. This makes it easier to hook the cover material 3 onto the hook portion 13 formed on the base plate 1 without pulling it too hard when hooking it onto the hook portion 13 while pulling it.

[0062] Furthermore, since the length from the shaft 14 to the tip 15a of the first hook piece 15 is different from the length from the shaft 14 to the tip 16a of the second hook piece 16, of the first hook piece 15 and the second hook piece 16, which have different lengths from the shaft 14 to the tips 15a, 16a, it is possible to first pass the hook piece that is easier to hook (in this embodiment, the second hook piece 16) through the hole 3b of the cover material 3. This makes it easier to hook the cover material 3 to the hook portion 13 formed on the base plate 1 without pulling it too hard when hooking it to the hook portion 13 while pulling it.

[0063] Furthermore, of the first hook piece 15 and the second hook piece 16, the second hook piece 16, which has a lower height from the back surface 1b of the base plate 1, has a shorter length from the shank 14 to the tip 16a than the length from the shank 14 to the tip 15a of the first hook piece 15, which has a higher height from the back surface 1b of the base plate 1, so the second hook piece 16, which has a shorter length from the shank 14 to the tip 16a, can be easily passed through the hole 3b of the cover material 3. This makes it easier to hook the cover material 3 onto the hook portion 13 formed on the base plate 1 without pulling too hard when hooking the cover material 3 onto the hook portion 13 while pulling it.

[0064] Furthermore, of the first hook piece 15 and the second hook piece 16, the second hook piece 16, which has a shorter height from the back surface 1b of the base plate 1, is arranged closer to the center of the base plate 1 than the first hook piece 15, which has a higher height from the back surface 1b of the base plate 1, and therefore the first hook piece 15, which has a higher height from the back surface 1b of the base plate 1, is arranged on a side other than the center of the base plate 1 (the side of the rising portion 10 in this embodiment). Therefore, once the hole 3b of the cover material 3 is hooked onto the second hook piece 16, which has a lower height and is arranged on the central side, the cover material 3 is less likely to come off the second hook piece 16, and the taller first hook piece 15 can also be easily passed through the hole 3b of the cover material 3.

[0065] Furthermore, since the surfaces 15b, 16b of the first hook piece 15 and the second hook piece 16 facing the base plate 1 are parallel to the back surface 1b of the base plate 1, it is easy to secure space for hooking the cover material 3 between the surfaces 15a, 16a of the first hook piece 15 and the second hook piece 16 facing the base plate 1 and the back surface 1b of the base plate 1.

[0066] Furthermore, the surfaces of the tip portions 15a, 16a of the first hook piece 15 and the second hook piece 16 opposite the base plate 1 are rounded, and the curvature of the curved surface of the tip portion 15a of the first hook piece 15 is greater than the curvature of the curved surface of the tip portion 16a of the second hook piece 16. Therefore, when the first hook piece 15, whose curved surface 15a has a greater curvature, is passed through the hole 3b, the cover material 3 is more likely to slip off, making it easier to hook the cover material 3 onto the hook portion 13 formed on the base plate 1.

[0067] Furthermore, since the height of the first hook piece 15 from the back surface 1b of the base plate 1 is higher than the protruding height of the rising portion 10e, it is easier to secure space for hooking the cover material 3 onto the first hook piece 15 since the rising portion 10e is lower in height from the back surface 1b of the base plate 1 than the first hook piece 15.

[0068] Furthermore, since multiple hook portions 13 are formed around the base plate 1, the cover material 3 hooked onto the multiple hook portions 13 formed around the base plate 1 is pulled evenly outward from the base plate 1, allowing the cover material 3 to be stably fixed.

[0069] Furthermore, since the holes 3b are formed along the terminal portion 3a of the cover material 3, the area of ​​the cover material 3 can be made as small as possible, which allows for cost reduction.

[0070] [Modification] The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Modifications will be described below. The following modifications may be combined as much as possible. In addition, in the following modifications, elements common to the above embodiment are denoted by the same reference numerals, and descriptions thereof will be omitted or simplified.

[0071] [Variation 1] In the above embodiment, the first hook piece 15 and the second hook piece 16 protrude in opposite directions across the shank 14, but this is not limited to this, and either hook piece may be angled differently from that in the embodiment to make it easier to pass through the hole 3b of the cover material 3. In other words, for example, when the hook portion 13 is viewed along the axial direction of the shank 14, the head of the hook portion 13 may be formed in a V-shape or a dogleg shape.

[0072] In the above embodiment, the hook portion 13 has the first hook piece 15 and the second hook piece 16, but is not limited to this and may have a third hook piece. In other words, the hook portion 13 may have, for example, the first hook piece 15, the second hook piece 16, and the third hook piece, and when the hook portion 13 is viewed along the axial direction of the shaft portion 14, for example, the head of the hook portion 13 may be formed in a Y shape.

[0073] In the above embodiment, the hook piece that is higher from the rear surface 1 b of the base plate 1 is the first hook piece 15 , but it may also be the second hook piece 16 .

[0074] In the above embodiment, the hook piece having the longer length from the shaft portion 14 to the tip end is the first hook piece 15, but it may also be the second hook piece 16.

[0075] In the above embodiment, the hook piece with the larger curvature of the curved surface at the tip end is the first hook piece 15, but it may also be the second hook piece 16.

[0076] In the above embodiment, the first hook piece 15 was positioned on the rising portion 10e side and the second hook piece 16 was positioned on the main body plate side (the center side of the base plate 1), but the second hook piece 16 may also be positioned on the rising portion 10e side and the first hook piece 15 may be positioned on the main body plate side.

[0077] [Variation 2] In the above embodiment, the fixing structure of the cover material 3 in a vehicle seat for a straddle-type motorcycle was described, but in this modified example, the fixing structure of the cover material 103 in a vehicle seat 100 for an automobile (passenger car) will be described.

[0078] As shown in Figure 7(a), the vehicle seat 100 comprises a base plate 101, a cushion material 102 that is provided on and supported by the upper surface of the base plate 101, and a cover material 103 that covers the base plate 101 and the cushion material 102. That is, the vehicle seat 100 is configured such that a cushion material 102 is supported on a surface 101 a of a base plate 101 and is covered with a cover material 103 .

[0079] 7(b) is a plan view showing the base plate 101, in which the hook portion 13 is integrally formed on the rear surface 101b side at the circled position. That is, a plurality of hook portions 13 are formed around the periphery of the base plate 101.

[0080] The hook portion 13 is integrally formed with the base plate 101 with the first hook piece 15 located on the edge side and the second hook piece 16 located on the center side of the base plate 101. In this modification, the first hook piece 15 is also taller from the back surface 1b of the base plate 1 and has a longer length from the shaft portion 14 to the tip 15a than the second hook piece 16. The curvature of the curved surface of the tip 15a of the first hook piece 15 is also greater than the curvature of the curved surface of the tip 16a of the second hook piece 16. Therefore, in this modification, the cover material 103 can be fixed to the base plate 101 in the same manner as in the above embodiment.

[0081] According to this modified example, multiple hook portions 13 are formed around the base plate 101, so that the cover material 103 hooked onto the multiple hook portions 13 formed around the base plate 101 is pulled evenly outward from the base plate 101, allowing the cover material 103 to be stably fixed.

[0082] [Variation 3] In the above embodiment, the fixing structure of the cover material 3 in a vehicle seat for a straddle-type motorcycle was described, but in this modified example, the fixing structure of the cover material 203 in an armrest 200 attached to the door Dr of an automobile (passenger car) will be described.

[0083] As shown in FIG. 8( a ), the armrest 200 is attached to the inner surface of the door Dr, and includes a base member 201 and a cover material 203 that covers the base member 201 . In addition, in the case of armrest 200, unlike vehicle seats, a cushioning material is not provided in many cases, but a thin cushioning material may be provided on the surface on which the arms are rested. In that case, the cushioning material is also covered by cover material 203.

[0084] At least the back surface 201b of the base member 201 is formed to have a longitudinal direction and a lateral direction. That is, the back surface 201b of the base member 201 is formed to be longer in the front-rear direction than in the up-down direction.

[0085] As shown in Figure 8(b), the cover material 203 has a trim cord 204 integrally provided at a portion of the terminal portion 203a along the longitudinal direction, reinforcing the terminal portion 203a more than the portion without the trim cord 204. As a result, the portion with the trim cord 204 is less flexible and less likely to stretch than the other portions. Therefore, unlike the other portions, the portion with the trim cord 204 can be sufficiently fixed by simply engaging it with a hook piece 201c that is different from the hook portion 13.

[0086] On the other hand, the portions of the terminal portion 203a located at one longitudinal end (front end) and the other longitudinal end (rear end) of the armrest 200 are narrow in width (short side direction: length in the up-down direction), and therefore, no trim cord 204 is provided. In order to fix such portions to the base plate 201, hook portions 13 are required on the base member 201 side. That is, the hook portions 13 are formed on one longitudinal end and the other longitudinal end of the back surface 201b of the base member 201. In order to make it easier to fix the end portion 203a of the cover material 203, the front end portion of the cover material 203 is formed with a bag-like portion 205 by sewing the end portion 203a into a bag shape.

[0087] To fix the terminal portion 203 a of the cover material 203 to the base member 201 , first, the bag-shaped portion 205 is placed over the front end portion of the base member 201 . Next, while the trim cord 204 is engaged with the hook piece 201c, the hook portion 13 at the front end is passed through a hole formed in the terminal portion 203a of the cover material 203, and the terminal portion 203a is fixed to the base member 201 from the front side to the rear side. Finally, the hook portion 13 at the rear end is passed through a hole formed in the terminal portion 203a of the cover material 203, and the terminal portion 203a is hooked onto the hook portion 13. This allows the terminal portion 203a of the cover material 203 to be fixed to the base member 201.

[0088] According to this modification, the back surface 201b of the base member 201 is formed to have a longitudinal direction and a lateral direction, so that the width (length in the lateral direction) of one end and the other end in the longitudinal direction is narrow. Since the hook portion 13 is formed in such a position, even if it is difficult to provide a locking member such as a trim cord on the cover material 203, the cover material 203 can be easily hooked onto the hook portion 13 formed on the base member 201. [Explanation of symbols]

[0089] 1 base plate 1a surface 1b back side 2 Cushioning material 3 Cover material 3a Terminal part 3b hole 10 Flange 10a Front 10b rear 10c left side 10d Right side 11 Reinforcement 12 Load receiving part 13 Hook part 14 Shaft 15 First hook piece 15a Tip 15b side 16 Second hook piece 16a Tip 16b side

Claims

1. A structure for fixing a cover material to a base member provided in a vehicle, the cover material has holes used for fixing to the base member; the base member includes a hook portion formed to protrude from a rear surface of the base member and to be passed through the hole of the cover material for hooking; the hook portion has a first hook piece and a second hook piece whose height from the back surface of the base member is different from that of the first hook piece, the hook portion further includes a shaft portion that protrudes from the rear surface of the base member and on which the first hook piece and the second hook piece are provided, A cover material fixing structure for a vehicle, characterized in that the length from the shaft portion to the tip of the first hook piece is different from the length from the shaft portion to the tip of the second hook piece.

2. A structure for fixing a cover material to a base member provided on a vehicle, comprising: the cover material has holes used for fixing to the base member; the base member includes a hook portion formed to protrude from a rear surface of the base member and to be passed through the hole of the cover material for hooking; the hook portion has a first hook piece and a second hook piece whose height from the back surface of the base member is different from that of the first hook piece, One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, A fixing structure for a cover material in a vehicle, characterized in that the surfaces of the tip portions of the one hook piece and the other hook piece opposite the base member are rounded, and the curvature of the surface of the tip portion of the other hook piece is greater than the curvature of the surface of the tip portion of the one hook piece.

3. the hook portion further includes a shaft portion that protrudes from the rear surface of the base member and on which the first hook piece and the second hook piece are provided, The cover material fixing structure for a vehicle as described in claim 2, characterized in that the length from the shaft portion to the tip of the first hook piece is different from the length from the shaft portion to the tip of the second hook piece.

4. The cover material fixing structure for a vehicle described in claim 1 or 3, characterized in that of the first hook piece and the second hook piece, the length from the shank to the tip of one of the hook pieces that is shorter in height from the back surface of the base member is shorter than the length from the shank to the tip of the other hook piece that is taller in height from the back surface of the base member.

5. A fixing structure for a cover material in a vehicle described in any one of claims 1 to 4, characterized in that of the first hook piece and the second hook piece, one of the hook pieces having a lower height from the back surface of the base member is positioned closer to the center of the base member than the other hook piece having a higher height from the back surface of the base member.

6. A cover material fixing structure for a vehicle as described in any one of claims 1 to 5, characterized in that the surfaces of the first hook piece and the second hook piece facing the base member are parallel to the back surface of the base member.

7. One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, The cover material fixing structure for a vehicle as described in claim 1, characterized in that the surfaces of the tip portions of the one hook piece and the other hook piece opposite the base member are rounded, and the curvature of the surface of the tip portion of the other hook piece is greater than the curvature of the surface of the tip portion of the one hook piece.

8. One of the first hook piece and the second hook piece is disposed on the center side of the base member, and the other hook piece is disposed on the edge side of the base member relative to the one hook piece, the other hook piece is set to a height from the back surface of the base member higher than the one hook piece, a raised portion protruding from the rear surface of the base member is formed at the edge of the base member, 8. The cover fixing structure for a vehicle according to claim 1, wherein the height of the other hook from the rear surface of the base member is greater than the protruding height of the rising portion.

9. 9. The cover fixing structure for a vehicle according to claim 1, wherein a plurality of the hook portions are formed around the periphery of the base member.

10. The back surface of the base member is formed to have a longitudinal direction and a lateral direction, The cover fixing structure for a vehicle according to any one of claims 1 to 9, wherein the hook portions are formed on one end and the other end of the back surface of the base member in the longitudinal direction.

11. 11. The cover fixing structure for a vehicle according to claim 1, wherein the hole is formed along an end portion of the cover.

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