Component member of vehicle seat

Abstract

To provide a component member for a vehicle seat, in which a cover material is mounted on a pad body, with a reasonable structure that restrains an increase in the number of components.SOLUTION: A seat cushion 2 has a cushion pad 10 and a cushion cover 20. The cushion pad 10 has a long hole 17 penetrating in a vertical direction. A belt-like suspension member 41 that can be inserted in the long hole 17 is provided on an underside of the cushion cover 20. A plate-like member 43 is mounted on a lower end side of the suspension member 41. The plate-like member 43 has a front projection 43b and a rear projection 43c. In a state where the cushion pad 10 is covered by the cushion cover 20, the suspension member 41 is inserted in the long hole 17, and the front projection 43b and the rear projection 43c are locked to an outer peripheral edge part of the long hole 17 in a bridging manner. In this state, a winding part 27 is mounted on the cushion pad 10 by inserting the front projection 43b into a front slit 27a disposed on the winding part 27, which is a portion of a terminal part of the cushion cover 20.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a component member for a vehicle seat. [Background technology]

[0002] Conventionally, there is a seat cushion for an automobile seat that is formed by covering a cushion pad, which is a cushion body into which a wire frame is inserted, with a cushion cover, which is a skin material. Such a seat cushion is preferably used in a bench-type rear seat, and is placed and fixed directly on the floor. In such a type of seat cushion described in Patent Document 1, in order to attach the cushion cover to the cushion pad, in the general part, a suspender having a resin member attached to the tip side of a fabric attached to the back side of the cushion cover is engaged with a clip inserted into the cushion pad. In addition, at the end part of the cushion cover, a part of the end part is engaged with a part of the wire frame inserted into the cushion pad by a hog ring or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-14217 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the seat cushion described in Patent Document 1, in order to attach the cushion cover to the cushion pad, suspenders and clips are required in the general portion, and an annular member of a hog ring is required in the end portion. In addition, when foam molding the cushion pad, work is required to insert mold the clip. This causes problems in that the number of parts increases and the number of work steps also increases.

[0005] In view of the above problems, an object of the present invention is to provide a component for a vehicle seat in which a cover material is attached to a pad body in a rational structure that suppresses an increase in the number of parts. [Means for solving the problem]

[0006] The first invention of the present invention is a component for a vehicle seat, comprising a pad body which is a cushioning material covered with a cover material which is a skin material, and a long hole penetrating from a front side surface on the seating surface side to a back side surface on the opposite side to the seating surface is formed at one end side of the pad body and extends approximately parallel to an outline of the front side, and a belt-shaped hanging member which can be inserted into the long hole is disposed on a back side of the cover material which abuts against the front side when the cover material is placed over the pad body, and a substantially rectangular plate-shaped member whose long axis extends in the same direction as the long hole is attached to the end of the hanging member opposite the back side, and the plate-shaped member is connected to the hanging member. and a first protrusion extending from a connecting portion in the direction of the outline and a second protrusion extending in the opposite direction to the outline, and the cover material is attached to the pad body by inserting the hanging member into the long hole with the cover material placed over the pad body and engaging the first protrusion and the second protrusion of the plate-shaped member in a bridging manner with the outer peripheral edge of the long hole, and the portion of the terminal portion of the cover material is attached to the pad body by inserting the second protrusion of the plate-shaped member into a slit provided in a portion of the terminal portion with the portion of the terminal portion rolled up so as to abut against the back side of the pad body.

[0007] According to the first aspect of the invention, the cover material can be fixed to the general portion of the pad body by passing the hanging member through the long hole and engaging the first and second protruding portions of the plate-like member with the outer peripheral edge of the long hole, so there is no need to insert clips or hanging wires into the pad body in advance, and an increase in the number of parts and the number of man-hours can be suppressed. Also, the end portion of the cover material can be fixed to the pad body by inserting the second protruding portion of the plate-like member into a slit provided in a part of the end portion, so no ring member for a hog ring is required and no hog ring work is required. This makes it possible to attach the cover material to the pad body while suppressing an increase in the number of parts and the number of man-hours.

[0008] The second invention of the present invention is characterized in that, in the above-mentioned first invention, the second protrusions of the plate-shaped member are provided in a pair spaced apart from each other at both ends in the direction in which the plate-shaped member extends, and the slits are also provided spaced apart to correspond to each of the second protrusions.

[0009] According to the second aspect of the present invention, slits spaced apart from each other and corresponding to the second protrusions are engaged with the second protrusions provided in pairs at both ends in the extending direction of the plate-like member. Each slit is less likely to open in the width direction than when the second protrusions are provided over the entire extending direction of the plate-like member, and therefore a part of the end portion of the cover material can be pulled more strongly in the direction opposite to the outline. This makes it possible to more strongly fix the end portion of the cover material to the pad body.

[0010] The third invention of the present invention is characterized in that, in the above-mentioned second invention, the first protrusion is formed in a portion between the second protrusions in the plate-shaped member, and another slit for inserting the first protrusion is also provided in a part of the terminal portion of the cover material.

[0011] According to the third aspect of the invention, a part of the terminal portion of the cover material is engaged and fixed not only to the second protruding portion but also to the first protruding portion, so that the terminal portion of the cover material can be fixed to the pad body even more strongly. [Brief description of the drawings]

[0012] [Figure 1] 1 is a perspective view of a seat cushion in an automobile rear seat according to an embodiment of the present invention; [Diagram 2] Fig. 2 is a plan view of the seat cushion of the automobile rear seat in the embodiment, seen from above, showing only the right side. [Diagram 3] 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 2. [Diagram 5] FIG. 4 is an enlarged view of a portion V in FIG. 3. [Figure 6] FIG. 5 is an enlarged view of a portion VI in FIG. 4. [Figure 7] 11 is a perspective view showing a state before the roll-up portion is locked to the plate-shaped member. FIG. [Figure 8] 13 is a perspective view showing a state in which the roll-up portion is engaged with a plate-shaped member. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] 1 to 8 show one embodiment of the present invention. This embodiment is an example in which the present invention is applied to a seat cushion 2 in an automobile rear seat 1. In each figure, arrows indicate the various directions when the automobile rear seat 1 is installed in an automobile. In the following description, directions will be described based on these directions. The automobile rear seat 1 of this embodiment is a three-seater bench seat, has a left-right length substantially the same as the width of the passenger compartment, and is provided with a seat cushion 2 that serves as a seating area, and a seat back 3 that serves as a backrest. Here, the automobile rear seat 1 corresponds to the "vehicle seat" in the claims.

[0014] As shown in Figs. 2 to 4, the seat cushion 2 is placed and fixed on a floor F that constitutes a part of the body of an automobile. The seat cushion 2 is formed by covering a cushion pad 10, which is a cushion material into which a cushion frame (not shown) that forms a skeleton is inserted, with a cushion cover 20, which is a skin material. The seat cushion 2 has a pair of left and right seat parts 2A on the left and right, and a central seat part 2B disposed between the left and right seat parts 2A, and is formed in a symmetrical shape. Here, the seat cushion 2 corresponds to a "constituent member" in the claims. The cushion pad 10 and the cushion cover 20 correspond to a "pad body" and a "cover material" in the claims, respectively.

[0015] 1 to 4, the cushion pad 10 is integrally formed from urethane foam with a cushion frame inserted therein. The urethane foam is a foam of urethane resin, and has a density of 0.04 g / cm. 3 The cushion pad 10 has a front side surface 10a, which is the upper surface, and a back side surface 10b, which is the lower surface. The front side surface 10a of each of the left and right seat parts 2A has a main part 11 that supports the buttocks and thighs of a seated occupant from below, side parts 12 located on both the left and right sides of the main part 11 that support the buttocks and thighs of the seated occupant from the sides, and a protruding part 13 that protrudes upward at the rear end. Between the main part 11 and each side part 12, a vertical groove 14 that opens upward and extends in the front-rear direction is arranged. The main part 11 has a front lateral groove 15 that opens upward on the front side and extends in the left-right direction, and a rear lateral groove 16 that opens upward on the rear side and extends in the left-right direction. A long hole 17 that penetrates from the front side surface 10a to the back side surface 10b and extends in the left-right direction is formed in the left-right center between the main part 11 and the protruding part 13. The peripheral portion of the rear side surface 10b of the long hole 17 is formed as a recess 10c recessed upward.

[0016] The front side surface 10a of the central seat portion 2B has a central main portion 18 that supports the buttocks and thighs of a seated occupant from below, and a central protruding portion 19 that protrudes upward at the rear end. A central long hole 31 is formed in the left-right center between the central main portion 18 and the central protruding portion 19, penetrating from the front side surface 10a to the back side surface 10b and extending in the left-right direction.

[0017] As shown in Figs. 2 to 4, the cushion cover 20 is formed into a bag shape with a plurality of pieces connected by sewing and opening downward. The cushion cover 20 has a cover main part 21 corresponding to the main part 11 of the cushion pad 10, a cover side part 22 corresponding to the side part 12, a cover protruding part 23 corresponding to the protruding part 13, a cover central main part 28 corresponding to the central main part 18, and a cover central protruding part 29 corresponding to the central protruding part 19. The cover main part 21 has a front cover main part 21a corresponding to a part forward of the front lateral groove 15 of the main part 11, a middle cover main part 21b corresponding to a part between the front lateral groove 15 and the rear lateral groove 16 of the main part 11, and a rear cover main part 21c corresponding to a part between the rear lateral groove 16 and the long hole 17 of the main part 11. The rear end of the front cover main part 21a and the front end of the middle cover main part 21b are connected by sewing with a first sewing thread 24. The rear end of the middle cover main part 21b and the front end of the rear cover main part 21c are sewn together by a second sewing thread 25 and connected to each other.

[0018] As shown in Figs. 3 to 6, the rear end of the rear cover main part 21c, the front end of the cover protruding part 23, and the upper end of the belt-shaped hanging member 41 extending in the left-right direction are sewn and connected by the third sewing thread 26. The plate-shaped member 43 is sewn and connected to the lower end side of the hanging member 41 by the fourth sewing thread 42. As shown clearly in Fig. 7, the plate-shaped member 43 is a resin plate material, and a rectangular main body part 43a extending in the left-right direction is sewn to the lower end side of the hanging member 41 by the fourth sewing thread 42 along the center line in the long axis direction. The dimension of the main body part 43a in the short axis direction is set to be almost equal to the width dimension in the front-rear direction of the long hole 17 of the cushion pad 10. A pair of left and right front protruding parts 43b protruding downward toward the front are formed on the front side of the main body part 43a, and a rear protruding part 43c protruding upward toward the rear is formed on the rear side of the main body part 43a. The rear protrusion 43c is disposed in a portion corresponding to the space between the pair of left and right front protrusions 43b in the left-right direction. When the plate-shaped member 43 is inserted from above into the long hole 17 and disposed along the bottom side of the recess 10c of the back side surface 10b, the pair of front protrusions 43b abut on the outer peripheral edge of the front side of the long hole 17, and the rear protrusion 43c abuts on the outer peripheral edge of the rear side of the long hole 17, thereby pulling the hanging member 41 downward. As a result, the lower surface side (rear surface side) of the rear cover main part 21c and the cover protrusion 23 of the cushion cover 20 is in close contact with the front side surface 10a of the cushion pad 10. Here, the rear protrusion 43c and the front protrusion 43b correspond to the "first protrusion" and the "second protrusion" in the claims, respectively.

[0019] As shown in FIG. 7, the roll-up portion 27, which is substantially rectangular, is connected to the rear lower end of the cover protrusion 23 by sewing. The roll-up portion 27 may be made of the same fabric as the cover protrusion 23, or may be made of other materials such as carpet or nonwoven fabric. When the roll-up portion 27 is disposed so as to abut against the rear side surface 10b of the cushion pad 10, a pair of left and right front slits 27a extending in the left-right direction are formed at positions corresponding to the pair of front protrusions 43b of the plate-like member 43, and a rear slit 27b is formed at a position corresponding to the rear protrusion 43c. As shown in FIG. 8, when the roll-up portion 27 is attached to the plate-like member 43 inserted into the long hole 17 and disposed in the recess 10c of the rear side surface 10b, the rear lower end of the cover protrusion 23 is pulled to the rear side surface 10b of the cushion pad 10. Here, the roll-up portion 27 corresponds to "a part of the terminal portion" in the claims. Also, the front slit 27a and the rear slit 27b correspond to "the slit" and "another slit" in the claims, respectively.

[0020] As shown in Fig. 2, the roll-up portion 27 is also connected by sewing to the rear lower end of the cover central protrusion 29. When the roll-up portion 27 is attached to the plate-like member 43 inserted into the central long hole 31 and arranged on the rear side surface 10b with the front protrusions 43b inserted into the front slits 27a and the rear protrusion 43c inserted into the rear slit 27b, the rear lower end of the cover central protrusion 29 is pulled by the rear side surface 10b of the cushion pad 10. That is, the structure of the cushion cover 20 on the rear end side of the central seat portion 2B is the same as the structure of the cushion cover 20 on the rear end side of each of the left and right seat portions 2A shown in Figs. 3 to 6.

[0021] The embodiment configured as above has the following effects. In order to fix the cushion cover 20 to the front side surface 10a of the cushion pad 10, the plate-shaped member 43 is inserted from above into the long hole 17 at the rear end side of each of the left and right seat parts 2A, and the front protrusions 43b and the rear protrusions 43c are engaged with the outer peripheral edge of the long hole 17 at the bottom side of the recess 10c. This eliminates the need to insert clips or hanging wires into the cushion pad 10 in advance, and can suppress an increase in the number of parts and an increase in the number of man-hours. In addition, in order to fix the roll-up part 27, which is a part of the terminal part of the cushion cover 20 to the cushion pad 10, it is sufficient to insert the front protrusions 43b into the front slits 27a and the rear protrusions 43c into the rear slits 27b, so that an annular member of a hog ring is not required and no hog ring work is required. This allows the cushion cover 20 to be attached to the cushion pad 10 while suppressing an increase in the number of parts and man-hours.

[0022] Further, the front slits 27a provided at intervals in the left-right direction are engaged with the front protruding parts 43b provided at intervals in the left-right direction. The front slits 27a are less likely to open in the width direction compared to when protruding parts are provided over the entire left-right direction in which the plate-like member 43 extends, and therefore the rolled-up part 27 of the cushion cover 20 can be pulled further forward. This allows the terminal part of the cushion cover 20 to be fixed to the cushion pad 10 more strongly.

[0023] Furthermore, since the rear protruding portions 43c of the plate-like member 43 are engaged and fixed not only to the front slits 27a but also to the rear slits 27b of the roll-up portion 27, the end portions of the cushion cover 20 can be fixed to the cushion pad 10 more strongly.

[0024] Although specific embodiments have been described above, the present invention is not limited to those external appearances and configurations, and various modifications, additions, and deletions are possible without departing from the spirit of the present invention. For example, the following can be mentioned.

[0025] 1. In the above embodiment, the present invention is applied to the seat cushion 2 of the rear seat 1 for an automobile. However, regardless of this, the present invention can also be applied to the seat back 3 of the rear seat 1 for an automobile, or to a cushion pad or back pad of a front seat for an automobile.

[0026] 2. In the above embodiment, the front protruding portions 43b are inserted into the front slits 27a and the rear protruding portions 43c are inserted into the rear slits 27b to fix the roll-up portion 27 to the cushion pad 10. However, regardless of this, it is also possible to provide only the front slits 27a in the roll-up portion 27 and simply insert the front protruding portions 43b into the front slits 27a.

[0027] 3. In the above embodiment, the present invention is applied to an automobile seat, but it may also be applied to seats installed in airplanes, ships, trains, etc. [Explanation of symbols]

[0028] 1. Automobile rear seats (vehicle seats) 2 Seat cushion (component) 3 Seat back 10 Cushion pad (pad body) 10a Front side 10b Back side 11 Main Section 12 Side section 13 Protrusion 17 long hole 20 Cushion cover (cover material) 21 Cover main part 22 Cover side part 23 Cover protrusion 27 Winding section (part of terminal section) 27a Front slit (slit) 27b Rear slit (other slit) 41 Suspension members 42 Sewing Thread 43 Plate-shaped members 43a Main body 43b Front protrusion (second protrusion) 43c rear protrusion (first protrusion)

Claims

1. A component of a vehicle seat, The pad body, which is a cushioning material, is covered with a cover material, which is a skin material. A long hole is formed in the pad body, which penetrates from a front side surface on the seating surface side to a back side surface on the opposite side to the seating surface, and extends approximately parallel to an outline of the front side surface at one end of the pad body, a belt-shaped hanging member that can be inserted into the long hole is disposed on a back surface of the cover material that abuts against the front surface when the cover material is placed on the pad body, a substantially rectangular plate-like member having a long axis extending in the same direction as the long hole is attached to the end of the hanging member opposite the back surface, the plate-like member has a first protruding portion extending from a connecting portion with the hanging member in a direction of the outline and a second protruding portion extending in a direction opposite to the outline, the cover material is attached to the pad body by inserting the hanging member into the long hole in a state in which the cover material is placed on the pad body, and engaging the first protruding portion and the second protruding portion of the plate-like member in a bridging manner with the outer peripheral edge portion of the long hole, A component of a vehicle seat in which a portion of the terminal portion of the cover material is attached to the pad body by inserting the second protrusion of the plate-shaped member into a slit provided in a portion of the terminal portion while the portion of the terminal portion is rolled up so as to abut against the back side of the pad body.

2. 2. The method according to claim 1, wherein the second protrusions of the plate-like member are provided in a pair at both ends of the plate-like member in an extending direction and spaced apart from each other, A component of a vehicle seat, wherein the slits are also provided at intervals corresponding to the second protrusions.

3. In claim 2, the first protruding portion is formed in a portion of the plate-like member between the second protruding portions, A component of a vehicle seat, wherein another slit into which the first protrusion is inserted is also provided in a portion of the terminal portion of the cover material.

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