WO2019004221A1 - Seat - Google Patents

Abstract

In order to facilitate tightly attaching a cover onto the sitting surface of a cushion, this seat 10, comprising a cushion 12 configuring a seat part and a cover 13 covering the cushion 12, is provided with multiple recesses 41, 42 provided on the sitting surface of the cushion 12, and a fixing member 51, 52 which, held in a state engaged with the cover 13 and inserted into the recesses 41, 40, fixes the cover 13 to the cushion 12.

Description

Sheet

The present invention relates to a seat comprising a cushion and a cover.

The seat cover is cut and formed to conform to the shape of the sheet to which the seat cover is attached, and at least two places on the outer peripheral edge are provided with annular bandages, and the string material is penetrated through the rings of these annular bandages A configuration has been proposed (see, for example, Patent Document 1). In this patent document 1, the sheet cover is fitted to the sheet by pulling the string material to apply tension to the sheet cover.

Registered Utility Model No. 3128129

However, in the conventional configuration, the string material passed through the outer peripheral edge of the annular band is pulled to fit the cover to the sheet, so that the tension at the center of the seat surface of the cover becomes relatively weak. In particular, when a stretchable material such as a mesh cover is used for the cover, the tension at the center of the seat surface is weakened.
Then, an object of this invention is to make a cover close_contact | adherence with the bearing surface of a cushion, and to make it easy to be stretched.

This specification includes the entire contents of Japanese Patent Application No. 2017-129774 filed on June 30, 2017.
In order to achieve the above object, the present invention provides a seat including a cushion (12) constituting a seat and a cover (13) covering the cushion (12), the seat being provided on the cushion (12) And the cover (13) are engaged with the plurality of recessed portions (41, 42) and the cover (13) to be held in the recessed portions (41, 42), and the cover (13) And fixing members (51, 52) fixed to the

In the above configuration, through holes (41K, 42K) through which the fixing members (51, 52) pass are provided in bottom portions (41A, 42A) of the recessed portions (41, 42), and the fixing members (51, 52) are provided. ) Is exposed to the back surface of the cushion (12) through the through holes (41K, 42K), and the exposed portion is provided with a retaining member for restricting removal of the fixing members (51, 52) Good.

In the above configuration, the recess (41, 42) may be cylindrically recessed, and the through hole (41K, 42K) may be smaller in diameter than the recess (41, 42).

In the above configuration, the cushion (12) is a single layer mesh cushion, the cover (13) is a mesh cover, and the single layer mesh cushion, the mesh cover, and the fixing members (51, 52) The sheet (10) may be configured.

In the above configuration, the peripheral portion (13S) of the cover (13) may be wound around the back surface of the cushion (12).

Further, in the above configuration, the peripheral portion (13S) of the cover (13) extends around the back surface of the cushion (12) to a position corresponding to any one of the through holes (41K, 42K); It may be engaged with any of the fixing members (51, 52).

Further, in the above configuration, the sheet (10) is located on the support frame (61), and any one of the concave portions (41, 42) is provided at a position to be wrapped with the support frame (61) in plan view. And any of the fixing members (51, 52) may be fixed to the support frame (61) through any of the concave portions (41, 42).

In the above-mentioned composition, depth of the crevice (41, 42) may exceed half of thickness of the cushion (12).

In the present invention, a plurality of concave portions provided on the seat surface of the cushion constituting the seat portion and a cover covering the cushion are engaged with each other to be held in the respective concave portions to fix the cover to the cushion And a fixing member. According to this configuration, the cover can be stretched by applying tension at a plurality of places on the seat surface, and the cover can be brought into close contact with the seat surface of the cushion for easy tension.
Moreover, the through-hole which the said fixing member penetrates is provided in the bottom part of the said recessed part. Then, the fixing member is exposed to the back surface of the cushion through the through hole, and the exposed portion is provided with a removal prevention for restricting the removal of the fixing member. According to this configuration, it is difficult to visually recognize from the outside the portion where the fixing member is prevented from coming off.

Moreover, the said recessed part is dented cylindrically, and the said through-hole is smaller diameter than the said recessed part. According to this configuration, the end on the seat surface side of the fixing member has a larger diameter than the through hole and a smaller diameter than the recess, and restricts the removal of the fixing member to the back surface of the cushion. it can.

Further, the cushion is a single layer mesh cushion, the cover is a mesh cover, and the sheet is configured of the single layer mesh cushion, the mesh cover, and the fixing member. According to this configuration, the seat can be configured without using the seat bottom plate, and it is possible to provide a lightweight seat which is excellent in cushioning property and air permeability.

Further, since the peripheral edge portion of the cover wraps around the back surface of the cushion, the peripheral edge portion of the cover can be made difficult to look outside.
In addition, since the peripheral edge portion of the cover extends around the back surface of the cushion and extends to a position corresponding to any of the through holes and engages with any of the fixing members, the cover and the cushion are fixed. The fixing member can be used to fix the peripheral portion of the cover to the cushion.

Further, the sheet is positioned on the support frame, any one of the recesses is provided at a position to be wrapped with the support frame in plan view, and any one of the fixing members penetrates any of the recesses. Is fixed to the support frame. According to this configuration, the seat can be fixed to the support frame by using the fixing member for fixing the cover and the cushion.

Further, since the depth of the recess exceeds half of the thickness of the cushion, contact between the occupant and the fixing member can be avoided even if the cushion is deformed.

FIG. 1 is a perspective view showing a seat peripheral portion of a motorcycle provided with a seat according to the first embodiment. FIG. 2 is an enlarged view of a cross section near the surface of the sheet. FIG. 3 is a top view of the sheet. FIG. 4 is a cross-sectional view showing the recess provided in the sheet along with the peripheral configuration. FIG. 5 is a cross-sectional view showing another recess along with its peripheral configuration. FIG. 6 is a cross-sectional view showing the recess of the sheet according to the second embodiment along with the peripheral configuration.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First Embodiment
FIG. 1 is a perspective view showing a seat peripheral portion of a motorcycle provided with a seat according to the first embodiment. In the description, the descriptions of the directions such as front, rear, left, right and up and down are the same as the respective directions of the vehicle unless otherwise specified. Further, a symbol FR shown in each drawing indicates the front of the vehicle body, a symbol UP indicates the upper portion of the vehicle body, and a symbol RH indicates the right side of the vehicle body.
The seat 10 is disposed between the fuel tank 2 and the rear cowl 3 of the motorcycle 1 and constitutes a seating portion (seat for an occupant) on which the occupant sits. When the vehicle body of the motorcycle 1 is different, the seat 10 is not limited to the above position. For example, in the case of a vehicle body provided with a tank-like cowl covering an air cleaner and a storage case at the position of the fuel tank 2, the seat 10 is disposed between the tank-like cowl and the rear cowl 3.

FIG. 2 is an enlarged view of a cross section near the surface of the sheet 10.
The seat 10 is composed of a cushion 12 constituting a seat and a cover 13 covering the cushion 12 and does not have a so-called seat bottom plate. The cushion 12 is a single layer mesh cushion made of a single layer mesh material, and the cover 13 is a mesh cover made of a mesh material 100.

The cushion 12 twists resin fibers (also referred to as continuous linear members) 12A made of a thermoplastic elastomer to form loops, and the contact portions of the respective loops are joined by fusion or the like to form a three-dimensional network structure. It is what was constructed. That is, the cushion 12 is a thermoplastic elastomer network. Thereby, the cushion 12 excellent in cushioning performance and durability and excellent in air permeability can be obtained. In particular, a cushion 12 with significantly more breathability can be obtained as compared to a conventional vehicle cushion made of urethane.

In addition, by adjusting the material of the fibers 12A constituting the cushion 12, the fiber diameter, the hollow ratio (hollow area per unit area), etc., the cushioning property, the air permeability and the durability (the durability of the cushioning property) are adjusted. It is possible. Thereby, even if the cushion 12 is relatively thin, sufficient cushioning, air permeability and durability can be obtained. In addition, since a gap is formed in the entire cushion 12, heat dissipation and water drainage (water permeability) can be obtained, which is advantageous for reducing the weight of the sheet 10.
The cushion 12 is not limited to the thermoplastic elastomer network, and may have a three-dimensional network structure using a material other than the thermoplastic elastomer.

The mesh material 100 constituting the cover 13 is formed in a three-layer structure made of a knitted fabric formed by knitting a fiber material made of a synthetic resin or the like. That is, the mesh material 100 is formed of a three-dimensional knitted fabric including the surface layer 101 constituting the surface exposed to the outside, the back layer 102 constituting the back surface, and the connecting layer 103 connecting the surface layer 101 and the back layer 102. The surface layer 101 and the back layer 102 are formed of a mesh-like knitted fabric of perforated tissue and have breathability. In addition, as the surface layer 101, it is preferable to use a fiber material (for example, a bulky yarn) that makes the surface feel good and has low water retention.

The connection layer 103 is configured by connecting the surface layer 101 and the back layer 102 by a connection yarn 103A of monofilaments. More specifically, the connecting layer 103 is formed of a knitted fabric having a cross structure in which at least two connecting yarns 103A are in tolerance when connecting the surface layer 101 and the back layer 102. With the cross structure, it is easy to achieve both air permeability, form stability, elasticity (impact absorption) and durability (sustainability of elasticity) and the like of the cover 13 which is a three-dimensional knit. Moreover, since a gap is formed in the entire cover 13, heat dissipation and water drainage can be obtained, which is advantageous for reducing the weight of the sheet 10.

As described above, in the present configuration, both the cushion 12 and the cover 13 provide air permeability, heat dissipation, and water drainage of the sheet 10. Moreover, since the cushion 12 and the cover 13 are formed of resin, the structure can be made more resistant to water than when natural fibers are used.
The connection layer 103 is not limited to the cross structure, and a pillar structure connecting the surface layer 101 and the back layer 102 substantially vertically, or a truss structure in which at least two connection yarns 103A and the front and back knitted fabric form a triangle. May be. Furthermore, the mesh material 100 may have a multilayer structure other than three layers. Further, some or all of the layers 101 to 103 may be configured other than the knitted fabric, such as changing the surface layer 101 or the back layer 102 to a single mesh material. Moreover, not only a multilayer structure but a well-known mesh raw material is widely applicable.

FIG. 3 is a view of the seat 10 as viewed from above.
The seat 10 is a single seat dedicated to the driver, and is formed in a shape that narrows toward the front and widens toward the rear. Since the width of the seat 10 narrows toward the front, the freedom of movement of the driver's foot seated on the seat 10 is secured. Furthermore, since the width of the seat 10 increases as the seat 10 moves rearward, a wide seat area corresponding to a change in the driver's posture can be secured. Even when the sheet is not a single sheet, the sheet may be narrowed toward the front and wider toward the rear.

The front of the seat 10 is formed in a curved shape that is recessed rearward along the back of the fuel tank 2. Further, the rear portion of the seat 10 is formed to extend laterally along the front surface of the rear cowl 3. In each of the left and right areas 10F forming the front left and right corners of the seat 10 and the left and right areas 10R forming the rear left and right corners, a recess 41 in which the seat surface of the cushion 12 is recessed downward Is provided.
Moreover, the recessed part 42 which dented the seat surface of the cushion 12 downward is provided also in the position corresponded to the center in the front and rear and the left and right of the sheet | seat 10. As shown in FIG.

FIG. 4 is a cross-sectional view showing the recess 41 together with its peripheral structure. In addition, each recessed part 41 and its periphery structure are the same.
Since it is difficult to manufacture the cushion 12 having a three-dimensional network structure with partially different thicknesses, it is difficult to form the recess 41 in advance when manufacturing the cushion 12. Therefore, in the present configuration, each recess 41 is formed by thermally deforming the cushion 12 manufactured in a plate shape having a certain thickness so that the position corresponding to each recess 41 is recessed.

In this case, the heat melted resin causes the density of the bottom 41A of each recess 41 to be higher than that at other places. As shown in FIG. 4, the portion of the recess 41 is formed so as to be compressed to a fraction of the thickness of the cushion 12 (about a quarter in the example of FIG. 4). The density is several times that of the surroundings. Therefore, the area of the bottom 41A of the recess 41 in the cushion 12 has no flexibility and is a hard area.
Further, in the bottom portion 41A of the recess 41, a through hole 41K through which the fixing member 51 passes is provided.

The recess 41 is formed in a cylindrical shape and has a diameter d2 larger than the diameter d1 of the head portion 51A of the fixing member 51. The diameter d3 of the through hole 41K passing through the bottom 41A of the recess 41 is smaller than the diameter d2 of the recess 41 and the diameter d1 of the head 51A of the fixing member 51, and the shaft 51B of the fixing member 51 passes It is formed to a possible value. Further, the depth D1 of the recess 41 is such a depth that the head 51A can be embedded in the recess 41, and is formed to a depth exceeding half of the thickness of the cushion 12. In FIG. 4 and each of the drawings to be described later, reference numeral P1 indicates a half position of the thickness of the cushion 12.

The fixing member 51 is a pin component (also referred to as a fixing pin) formed of metal or resin having rigidity, and has a linearly extending shaft portion 51B and a head portion 51A whose diameter is increased at the upper end of the shaft portion 51B. Together. The fixing member 51 is inserted to a position where the head 51A abuts on the top surface of the bottom 41A of the recess 41 by inserting the fixing member 51 into the recess 41 with the head 51A facing upward.

The shaft 51B of the fixing member 51 is formed in a shape longer than the through hole 41K. Thus, the shaft 51 </ b> B penetrates the cushion 12 and is exposed on the back side of the cushion 12. A stopper 55 serving as a retaining member for restricting the upward removal of the fixing member 51 is attached to the exposed end portion. The stopper 55 of this configuration is a split pin, and penetrates a hole provided in the shaft 51B in a direction orthogonal to the shaft 51B. The stopper 55 does not have to be limited to the split pin, and any member capable of preventing the fixing member 51 from coming off can be applied.

Further, before the fixing member 51 is inserted into the recess 41, a stitch formed by the mesh material 100 of the cover 13 is passed through the shaft portion 51B of the fixing member 51.
Here, the head 51 </ b> A of the fixing member 51 is formed so as not to pass through the stitches formed by the mesh material 100 of the cover 13. Thus, the cover 13 is locked to the fixing member 51.
As shown in FIG. 4, the cover 13 is fixed to the cushion 12 by inserting the fixing member 51 which locks the cover 13 into the recess 41 and restricting (preventing removal of) the fixing member 51 by the stopper 55. Be done. In this case, the cover 13 is held between the head 51A of the fixing member 51 and the bottom 41A of the recess 41, and the cover 13 can be fixed in a state of being drawn into the recess 41.

As described above, since the cover 13 is fixed in a state of being drawn into the recess 41, tension can be applied efficiently and the cover 13 can be stretched. Therefore, the cover 13 can be stretched by applying tension at the locations (see FIG. 3) of the plurality of (four) concave portions 41 provided on the seat surface of the cushion 12, and the cover 13 adheres closely to the seat surface of the cushion 12. It becomes possible to stretch. Moreover, since the cover 13 is positioned at the location of each recess 41, the displacement of the cover 13 can be suppressed.

Since the cover 13 is a mesh cover, it has a certain degree of stretchability. Due to this elasticity, even if a part of the cover 13 is drawn into the recess 41, the cover 13 can be stretched along the cushion 12. Further, the amount of pulling the cover 13 into the recess 41 can be changed by changing the depth of the recess 41 or the like, and the tension can be adjusted. For example, in the case of the cover 13 having high stretchability, it is preferable to relatively increase the amount drawn into the recess 31 and in the case of the cover 13 having low stretchability, the amount drawn into the recess 31 is relatively small.

FIG. 5 is a cross-sectional view showing the recess 42 together with its peripheral structure. The method of forming the recess 42 is the same as that of the recess 41.
The recess 42 is cylindrically recessed, and a through hole 42 K through which the fixing member 52 passes is provided at the bottom 42 A of the recess 42. The recess 42 is formed to have a diameter d7 larger than the diameter d6 of the head 52A of the fixing member 52. The diameter d8 of the through hole 42K passing through the bottom 42A of the recess 42 is smaller than the diameter d7 of the recess 42 and the diameter d6 of the head 52A of the fixing member 52, and the shaft 52B of the fixing member 52 passes It is formed to a possible value. Further, the depth D2 of the recess 42 is such a depth that the head 52A can be embedded in the recess 42, and is formed to a depth exceeding half of the thickness of the cushion 12 (the position shown by the symbol P1). .

The fixing member 52 is different from the fixing member 51 in that the fixing member 52 is fastened to a support frame 61 that constitutes a part of the vehicle body frame of the motorcycle 1. The support frame 61 is a component provided at a position where the support frame 61 wraps in a plan view, and the sheet 10 is positioned on the support frame 61. Further, the support frame 61 has a to-be-fastened portion 62 to which the shaft portion 52B of the fixing member 52 inserted into the recess 42 of the sheet 10 is fastened.
The support frame 61 is, for example, a plate-like cross frame that bridges between a pair of left and right seat rails, or a seat rail itself.

In the present configuration, the fixing member 52 is a screw part (bolt with holes in the present configuration) formed of a metal or resin having rigidity, and the shaft 52B on which an external thread is formed and the upper end of the shaft 52B. It integrally comprises a head 52A which expands in diameter. The fixing member 52 is inserted to a position where the head 52A abuts on the upper surface of the bottom 42A of the recess 42 by inserting the fixing member 52 into the recess 42 with the head 52A facing upward.

The shaft 52B of the fixing member 52 is formed in a shape longer than the through hole 42K. Thus, the shaft 52B penetrates the cushion 12 and is exposed on the back side of the cushion 12. Then, by rotating the head 52A of the fixing member 52 with a tool (not shown), the shaft 52B of the fixing member 52 is fastened to the to-be-fastened portion 62 provided on the support frame 61. Thus, the upward removal of the fixing member 32 is restricted, and the cushion 12 and the support frame 61 are connected.
In this manner, the to-be-fastened portion 62 functions as a stopper serving as a retaining member that regulates the removal of the fixing member 52 upward.

Further, before the fixing member 52 is inserted into the recess 42, a stitch formed by the mesh material 100 of the cover 13 is passed through the shaft 52B of the fixing member 52. The head 52 </ b> A of the fixing member 52 is sized so as not to pass through the stitches formed by the mesh material 100 of the cover 13. Thus, the cover 13 is locked to the fixing member 52.
Therefore, as in the case of the fixing member 51, the cover 13 is held between the head 52A of the fixing member 52 and the bottom 42A of the recess 42, and the cover 13 is fixed in a state of being drawn into the recess 42. Be done. As a result, the cover 13 can be stretched by applying tension even at the location of the recess 42, and the cover 13 can be brought into close contact with the seat surface of the cushion 12 and can be easily stretched. Moreover, it is possible to suppress the displacement of the cover 13 also at the location of the recess 42.

As described above, since the cushion 12 and the support frame 61 are also fixed in addition to the fixation between the cover 13 and the cushion 12 at the location of the recess 42, the number of parts is smaller than in the case where these fixations are separately performed. It can be done with less and with a simple structure.
In addition, since the strength of the tension can be adjusted also by changing the depth of the recess 42 or the like, it is preferable to make the depth of the recess 42 shallow in the case of the cover 13 having low stretchability.
In the present configuration, the case where the recess 42 is provided at one position in the center of the seat surface has been described, but the position and the number of the recesses 42 may be changed as appropriate. In addition, the positions and the number of the recesses 41 may be changed as appropriate.

As described above, in the present embodiment, the cover 13 is held in a state of being engaged with the plurality of recesses 41 and 42 provided on the seat surface of the cushion 12 and the cover 13 and entering the recesses 41 and 42. And fixing members 51, 52 for fixing the cushion 12 to the cushion 12. According to this configuration, the cover can be stretched by applying tension at a plurality of places on the seat surface. As a result, even if the cover 13 is a stretchable mesh cover, the cover 13 is brought into close contact with the seat surface of the cushion 12 so that it is easy to stretch.
Moreover, it is possible to easily remove the cover 13 by removing the fixing members 51 and 52. Therefore, it becomes easy to wash or replace the cover 13 and the cushion 12 alone.

Further, through holes 41K and 42K through which the fixing members 51 and 52 pass are provided in the bottoms 41A and 42A of the concave portions 41 and 42, respectively. The fixing members 51 and 52 are exposed to the back surface of the cushion 12 through the through holes 41K and 42K, and the exposed portions are provided with a retaining member for restricting the detachment of the fixing members 51 and 52. According to this configuration, it is difficult to visually recognize from the outside the portion where the fixing members 51 and 52 come off.

Further, since the recessed portions 41 and 42 are recessed in a cylindrical shape and the through holes 41K and 42K are smaller in diameter than the recessed portions 41 and 42, the end portions on the seat surface side of the fixing members 51 and 52 (corresponding to the head portions 51A and 52A) With a simple configuration in which the diameter of the fixing members 51 and 52 is made larger than the through holes 41 K and 42 K and smaller than the recessed portions 41 and 42, it is possible to restrict the detachment of the fixing members 51 and 52 to the cushion back surface.

The cushion 12 is a single layer mesh cushion, the cover 13 is a mesh cover, and the sheet 10 is formed of the single layer mesh cushion, the mesh cover, and the fixing members 51 and 52. As a result, the seat 10 can be configured without using a so-called seat bottom plate, and it is possible to provide a lightweight seat 10 that is excellent in cushioning properties and air permeability.
In addition, since the single layer mesh cushion is thermally deformed to form the recesses 41, 42, the recesses 41, 42 can be easily formed in the single layer mesh cushion, and the bottoms 41A, 42A of the recesses 41, 42 are made hard. be able to. Therefore, the fixing members 51 and 52 and the cover 13 can be fixed to the high strength portion without using a high strength sheet bottom plate.

Further, the sheet 10 is located on the support frame 61, the recess 42 is provided at a position to wrap the support frame 61 in plan view, and the fixing member 52 is fixed to the support frame 61 through the recess 42. . Thus, the seat 10 can be fixed to the support frame 61 by using the fixing member 52 that fixes the cover 13 and the cushion 12.
In addition, at least one of the concave portions 41 and 42 is provided at a position where it is lapped with the support frame 61 in plan view, and at least one of the fixing members 51 and 52 penetrates any of the concave portions 41 and 42 to support the support frame 61 It may be fixed to

Further, since the depths D1 and D2 of the recesses 41 and 42 exceed half of the thickness of the cushion 12, even if the cushion 12 is deformed, the contact between the occupant and the fixing members 51 and 52 can be sufficiently avoided.

Second Embodiment
FIG. 6 is a cross-sectional view showing the recess 41 of the sheet according to the second embodiment together with the peripheral configuration. The same parts as those in the first embodiment are indicated by the same reference numerals.
The second embodiment differs from the first embodiment in that the peripheral portion 13S of the cover 13 wraps around the back surface of the cushion 12 and engages with the fixing member 51 penetrating the through hole 41K.
As shown in FIG. 6, the peripheral portion 13S of the cover 13 integrally includes a flange portion 13A that is bent toward the back surface of the cushion 12 beyond the side edge of the cushion 12. The flange portion 13A extends to a region covering the lower side of the through hole 41K communicating with the recess 41.

The flange portion 13A has an engaging portion 13K engaged with the fixing member 51 penetrating the through hole 41K. The engaging portion 13K is a stitch when the flange portion 13A is formed by the mesh material 100, and the fixing member 51 is engaged with the flange portion 13A by inserting the fixing member 51 into the stitch.
As shown in FIG. 6, the fixing member 51 is prevented from coming off by the stopper 55 outside the flange portion 13A. Thus, the flange portion 13A is sandwiched between the stopper 55 and the back surface of the cushion 12, and the peripheral portion 13S of the cover 13 can be fixed to the cushion 12.

As described above, since the peripheral portion 13S of the cover 13 wraps around the back surface of the cushion 12, it is possible to make the peripheral portion 13S of the cover 13 difficult to see in appearance.
Further, the peripheral portion 13S turns around on the back surface of the cushion 12, extends to a position corresponding to the through hole 41K, and engages with the fixing member 51. Thereby, the cover 13 (peripheral part 13S) can be fixed to the cushion 12 using the fixing member 51 which fixes the cover 13 and the cushion 12. Therefore, the number of parts can be reduced and the structure can be simplified as compared to the case where these fixations are performed separately.

Further, in FIG. 6, the through hole 41K is formed to have a diameter larger than that of the shaft 51B, and a cylindrical part 71 formed of metal or resin having rigidity between the through hole 41K and the fixing member 51 ( (Also referred to as color). This cylindrical component 71 makes it possible to further improve the strength between the head 51A of the fixing member 51 and the cover 13 (flange portion 13A) in the cushion 12.
The flange portion 13A may be provided so as to engage with each fixing member 51 inserted into each recess 41, and may be formed over the entire periphery of the cover 13, or the entire surface of the cover 13 It may not be formed over the circumference.

Further, as in the first embodiment, the depth D1 of each concave portion 41 is formed to a depth exceeding half of the thickness of the cushion 12 (the position indicated by the symbol P1), so deformation of the cushion 12 occurs. Also, the contact between the occupant and the fixing member 51 can be avoided.

Also in the first embodiment, the cylindrical component 71 having rigidity may be disposed between the through holes 41 K and 42 K of the cushion 12 and the fixing members 51 and 52.
Further, the peripheral edge portion 13S (including the flange portion 13A) of the cover 13 may extend to a position corresponding to the through hole 42K and engage with the fixing member 52.

Moreover, although 2nd embodiment demonstrated the case where flange part 13A was formed with the mesh raw material 100, you may form not only with this but cloths other than the mesh raw material 100. FIG. In this case, a through hole may be provided in the cloth constituting the flange portion 13A as the engaging portion 13K with which the fixing member 51 is engaged.

The above-described embodiment is merely an embodiment of the present invention, and any modification and application can be made without departing from the spirit of the present invention.
For example, although the case where the recess 41 has a cylindrical shape is described, it may be changed to a polygonal shape or the like. Moreover, although the case where the cover 13 was made into a mesh cover was demonstrated, it is not limited to a mesh cover. Further, the cushion 12 is not limited to the single layer mesh cushion, and may be, for example, urethane.

Although the case where the seat 10 does not include the seat bottom plate has been described, a seat bottom plate for supporting the cushion 12 from below may be provided, and a known seat structure can be widely applied.
The shape of the sheet 10 may be changed as appropriate. In the above-described embodiment, the present invention is applied to a driver-specific single seat, but the present invention may be applied to a tandem seat on which a driver and a passenger get on or a passenger-specific single seat. .

Further, the present invention can be applied to the seat of a vehicle other than a motorcycle. For example, the present invention is not limited to motorcycles (including motorbikes), but applies to other motorcycles such as bicycles, and seats of saddle-ride type vehicles including three-wheeled vehicles such as ATVs (rough terrain vehicles) and four-wheeled vehicles. May be Also, the present invention may be applied to a seat other than a vehicle.

1 Motorcycles (saddle-type vehicles)
Reference Signs List 10 sheet 12 cushion 13 cover 41, 42 recessed portion 41A, 42A bottom portion 51, 52 fixing member 41K, 42K through hole 61 support frame 100 mesh material

Claims (8)

1. In a seat comprising a cushion (12) constituting a seat and a cover (13) covering the cushion (12),
   A plurality of recesses (41, 42) provided on the seat surface of the cushion (12);
   And a fixing member (51, 52) which is engaged with the cover (13) and held in the recess (41, 42) to fix the cover (13) to the cushion (12) A sheet comprising:
2. The bottom portions (41A, 42A) of the recessed portions (41, 42) are provided with through holes (41K, 42K) through which the fixing members (51, 52) pass,
   The fixing members (51, 52) are exposed to the back surface of the cushion (12) through the through holes (41K, 42K), and restrict removal of the fixing members (51, 52) to the exposed portions. The seat according to claim 1, characterized in that a retention is provided.
3. The sheet according to claim 2, wherein the recess (41, 42) is formed in a cylindrical shape and the through holes (41K, 42K) have a smaller diameter than the recess (41, 42).
4. The cushion (12) is a single layer mesh cushion, the cover (13) is a mesh cover, and the sheet (10) is formed by the single layer mesh cushion, the mesh cover, and the fixing members (51, 52). The sheet according to claim 2 or 3, wherein the sheet is configured.
5. The seat according to any one of claims 2 to 4, wherein a peripheral edge (13S) of the cover (13) wraps around the back surface of the cushion (12).
6. The peripheral portion (13S) of the cover (13) extends around the back surface of the cushion (12) to a position corresponding to one of the through holes (41K, 42K), and the fixing members (51, 52) The seat according to claim 5, wherein the seat is engaged with any one of the above.
7. Said sheet (10) is located on a support frame (61);
   One of the recessed portions (41, 42) is provided at a position to be wrapped with the support frame (61) in plan view,
   7. Any one of the fixing members (51, 52) is fixed to the support frame (61) through any of the recesses (41, 42). A sheet according to one item.
8. The seat according to any one of the preceding claims, characterized in that the depth of the recess (41, 42) is more than half the thickness of the cushion (12).

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