JP6339860B2 - Seat pad and seat - Google Patents

Description

  The present invention relates to a pad used for a sheet and a sheet.

  The sheet has a configuration in which a pad as an elastic body is covered with a skin. This seat includes a vehicle seat, a seat not limited to a vehicle, a cushion, a chair, and the like.

  For example, when a vehicle seat is considered as the seat, the vehicle seat has a seat cushion for supporting the occupant's buttocks and a seat back provided on the rear portion of the seat cushion. The seat cushion itself or the seat back itself may be referred to as a vehicle seat.

  As a seat cushion, patent document 1 is mentioned, for example. This structure was covered with a pad body (that is, an elastic body) made of urethane foam, a sheet skin covering the outer periphery of the pad body (referred to as “seat cover” in Patent Document 1), and a sheet skin. It consists of a metal or resin support frame that supports the pad. The pad body is composed of a seating part and side parts that are formed in a raised shape on both the left and right sides of the seating part so as to support the occupant from the left and right and maintain a seating posture. Is formed.

  A pair of left and right vertical suspension grooves extending in the front-rear direction and a lateral suspension groove extending in the width direction at the center portion in the front-rear direction are provided on the upper surface of the pad main body in order to lock the seat skin. And the width direction outer side becomes a said side part from a pair of vertical suspension groove, and between the vertical suspension grooves becomes a seating part. In addition, the rear side of the horizontal hanging groove is the lower bottom and the front side is the lower thigh.

  In addition, the pad main body is provided with a storage recess for storing a breathable member made of a three-dimensional mesh cushion formed of a fiber material on the pad surface of the lower thigh. The storage recess is formed up to the front edge of the pad main body so as to be ventilated.

JP2013-23140A

  In the conventional pad of the sheet, there is a problem that the strength of the pad main body is low in a portion where a hanging groove for locking the skin such as a sheet skin is formed. The present invention has been made in view of this problem in the conventional structure, and an object of the present invention is to provide a sheet pad capable of improving the strength of the groove portion.

The pad of the seat according to the present invention has a resilient body that gives elasticity to the seated person and a groove for fixing the skin, and the resilient body and the groove are formed by a molding process. pad, one end has a fibrous body which is provided inside the elastic body so as tuna rising other end in the groove is exposed to the outside, the resilient body is a foamed molded article of urethane, the The fiber body is a three-dimensional network formed by three-dimensionally meshing synthetic resin fiber materials, and the fiber body and the elastic body are impregnated with each other at the boundary between the fiber body and the elastic body. comprising impregnation zone der is, the hardness value of the impregnation zone may be greater than the hardness value of the hardness values and the fibrous body of the resilient member. The seat of the present invention is, for example, a vehicle seat, a seat not limited to a vehicle, a cushion, a chair, and the like.

  According to this pad, the back side region (for example, the lower region) of the groove is made of a fibrous body, and the periphery of the fibrous body is cured as an impregnated region in which the fibers of the fibrous body are cured by impregnating urethane. Therefore, the strength of the groove portion of the pad is increased and reinforced. Further, since the fiber body is connected to the groove, the air permeability of the pad is ensured.

Pad of sheet according to the present invention, the resilient body is Ru foam moldings der urethane. Further, the fiber body Ru stereoscopic meshwork der comprising sterically entangled in a network form the fiber material of the synthetic resin.

  The pad of the seat concerning the present invention can have a main part which mainly receives the weight of a seated person, and a side part provided in a side part of the main part. The main part is, for example, a seating part or a backrest part. The side portion is a portion that is raised more than the main portion and is a portion that supports (i.e. supports) the seated person. The main body portion and the side portion can be formed by the elastic body. The groove may be a groove provided at a boundary portion between the main body portion and the side portion.

  In the pad of the above-described seat provided with the main body portion and the side portion, the elastic body of the side portion can be harder than the elastic body of the main body portion. According to this configuration, the elastic body of the main body can be set to a hardness that can give a cushioning property suitable for the seated person, while the elastic body of the side part can hardness that can stably support the arm and elbow of the seated person. It can be.

  In the pad of the sheet according to the present invention, the fiber body has a groove fiber body portion connected to the groove and a side fiber body portion provided from the groove fiber body portion to the inside of the side portion. Can be configured.

  According to this structure, the hardness of a side part elastic body can be made high by the effect | action of the high impregnation area | region formed around the side part fiber body part. For this reason, even when the seating portion elastic body and the side portion elastic body are formed of the same material urethane, the hardness of the seating portion elastic body and the side portion elastic body can be set to desired hardnesses different from each other.

  In the pad of the sheet according to the present invention in which the side portion fibrous body portion is provided, the tip of the side portion fibrous body portion can extend to the outer peripheral end of the side portion elastic body and be exposed to the outside. By so doing, the air permeability can be improved as compared with the case where the tip of the side portion fiber body portion is placed in the middle position inside the side portion elastic body.

  The pad of the sheet | seat which concerns on this invention which provided the side part fiber body part WHEREIN: The said side part fiber body part can incline and provide toward the inside of the said side part elastic body from the said groove part fiber body part. According to this structure, the side part elastic body can be made into substantially uniform hardness as a whole.

  In the pad of the sheet according to the present invention, the impregnation region can be formed by foam molding by supplying a material of the elastic body, for example, urethane resin, into a molding space where the fibrous body is placed. According to this method, the impregnation region is inevitably formed when the elastic body is formed by foam molding.

  Next, the sheet according to the present invention is a sheet in which the periphery of the pad is covered with a skin, and the pad is a pad of the sheet having the above-described configuration. This sheet uses a pad having a groove for fixing the skin. This pad has a tendency that the strength of the groove portion is weakened. However, according to the present invention, since the hardened impregnation region is arranged at the groove portion, the strength of the groove portion in the pad can be reinforced. did it.

  According to the sheet and the pad of the sheet according to the present invention, the back side region (for example, the lower region) of the groove for fixing the epidermis is made of a fibrous body, and the fibers of the fibrous body are elastic bodies around the fibrous body. Since the material is cured as an impregnated region obtained by impregnating the material (for example, urethane), the strength of the pad groove portion is increased and reinforced. Moreover, since the fibrous body is connected to the groove, the air permeability of the pad is ensured.

It is a perspective view showing a 1st embodiment of a sheet concerning the present invention. It is a top view which shows 1st Embodiment of the pad of the sheet | seat which concerns on this invention. It is a longitudinal cross-sectional view of the pad of the sheet | seat according to the BB line of FIG. It is sectional drawing which shows an example of the fixing method of the epidermis to a pad. It is a top view which shows 2nd Embodiment of the pad of the sheet | seat which concerns on this invention. It is a top view which shows 3rd Embodiment of the pad of the sheet | seat which concerns on this invention.

(First embodiment of sheet and pad)
A first embodiment of the sheet and pad of the present invention will be described with reference to FIG. In FIG. 1, a seat cushion 1 and a seat back 2 constitute a front seat 3. Each of the seat cushion 1, the seat back 2, and the front seat 3 is an embodiment of a seat according to the present invention, particularly a vehicle seat. The seat cushion 1 is a portion on which a seated person's buttocks ride. The seat back 2 is a portion on which the back of the seated person leans.

  The seat cushion 1 includes a frame 6a having a skeleton structure, a pad 7a supported by the frame 6a, and a skin 8a covering the pad 7a. The seat back 2 includes a frame 6b having a skeleton structure, a pad 7b supported by the frame 6b, and a skin 8b covering the pad 7b. The frames 6a and 6b are made of hard metal, hard synthetic resin, or the like. The skins 8a and 8b are formed of a material having air permeability, for example, fabric, leather, synthetic leather or the like. The configuration of the pad 7a will be described later. The pad 7b is configured similarly to the pad 7a.

  The skin 8a of the seat cushion 1 is stitched together by two vertical seams 11a and one horizontal seam 12a. The numbers of the vertical seams 11a and the horizontal seams 12a are not limited to the illustrated example. The skin 8b of the seat back 2 is stitched together by two vertical seams 11b and one horizontal seam 12b. The numbers of the vertical seams 11b and the horizontal seams 12b are not limited to the illustrated example.

  In the seat cushion 1, the inner part of each of the two vertical seams 11a is a seating part 16, and the outer part of each of the two vertical seams 11a is a side part 18a. The seating part 16 functions as a main part that mainly receives the weight of the buttocks of the seated person. The side part 18a realizes a function of supporting a seated person from the side by protruding upward from the seating part 16.

  In the seat back 2, the inner part of each of the two vertical seams 11b is a backrest part 19, and the outer part of each of the two vertical seams 11b is a side part 18b. The backrest part 19 functions as a main part that mainly receives the weight of the back of the seated person. The side part 18 b realizes a function of supporting the seated person from the side by protruding forward from the backrest part 19.

  2 is a plan view of the pad 7a of the seat cushion 1 shown in FIG. 1 when viewed from the direction of arrow A in FIG. In FIG. 2, a pair of left and right vertical suspension grooves 13 and 13 extending in the front-rear direction X and a lateral suspension extending in the width direction Y at the center in the front-rear direction are provided on the pad 7a to lock the skin 8a of FIG. A recessed groove 14 is provided. In the pad 7a, the inner portions of the vertical hanging grooves 13 and 13 serve as seating portions 21, and the outer portions of the vertical hanging grooves 13 and 13 protrude upward (frontward in the direction penetrating the paper surface). 22 and 22. The seating portion 21 of the pad 7a corresponds to the seating portion 16 of the skin 8a of FIG. The side portions 22 and 22 of the pad 7a in FIG. 2 correspond to the side portions 18a and 18a of the skin 8a in FIG.

  FIG. 3 is a longitudinal sectional view according to the line BB of FIG. In FIG. 3, the seating part 21 and the side part 22 of the pad 7a are formed of elastic bodies. Hereinafter, the seating part 21 and the side part 22 may be referred to as the seating part elastic body 21 and the side part elastic body 22, respectively, or simply referred to as the elastic body 21 and the elastic body 22, respectively. The elastic bodies 21 and 22 are members having cushioning properties, for example, urethane which is a foaming resin.

  Fiber bodies 23 and 23 are provided in the lower region (that is, the back region) of the vertical suspension grooves 13 and 13. The fiber body 23 is provided inside the elastic bodies 21 and 22 in a state of being connected to the suspension groove 13. The fiber body 23 is a structure formed by three-dimensionally meshing a fiber material of a synthetic resin (for example, a thermoplastic elastic resin), that is, a three-dimensional network. The fiber body 23 has cushioning properties and air permeability. As the thermoplastic elastic resin, for example, a thermoplastic elastomer such as a polyester elastomer, a polyamide elastomer, a polyurethane elastomer, a polyolefin elastomer, or the like can be applied.

  The hanging grooves 13 and 13 are grooves for fixing the skin 8a of FIG. Various methods for fixing the skin 8a using the hanging grooves 13 and 13 are conceivable. For example, the method shown in FIG. 4 can be adopted. In FIG. 4, the hanging bag 26 is sewn on the back side of the seam 11 a of the skin 8 a, and the steel wire 28 is passed through the hanging bag 26. On the other hand, an insert wire 29 is provided in advance at an appropriate position inside the pad 7a. And after inserting the steel wire 28 in the groove | channel 13 with the suspension bag 26, the steel wire 28 and the insert wire 29 are connected with a predetermined | prescribed connection tool, for example, a hog ring. In addition to this fixing method, the skin 8a and the pad 7a can be fixed inside the groove 13 by adhesion.

  As shown in FIG. 3, the fiber body 23 is provided up to the back surfaces of the elastic bodies 21 and 22, and the tips thereof are exposed to the outside. The outer peripheral side surfaces of the fiber bodies 23 and 23 (that is, the boundary portion between the fiber body 23 and the elastic bodies 21 and 22) are impregnated with the urethane of the elastic bodies 21 and 22 and the fiber body 23 to form the impregnation regions 24 and 24. ing. The hardness value of the impregnation region 24 is larger than the hardness value of the elastic bodies 21 and 22 and the hardness value of the fiber body 23.

  The impregnation regions 24, 24 can be formed as follows, for example. That is, the fiber bodies 23 and 23 are disposed in advance between the molding space for forming the seating portion elastic body 21 and the molding space for forming the side portion elastic body 22, and urethane is then inserted into the molding space. The impregnation region 24 can be inevitably formed when the resin is supplied at the same time and the seat portion elastic body 21 and the side portion elastic body 22 are formed by foam molding.

  Further, in the present embodiment, the hardness of the side elastic body 22 is larger than the hardness of the seat elastic body 21. For example, the seat portion elastic body 21 has a relatively low hardness in order to give cushioning properties to the seated person, and the side portion elastic body 22 has a relatively high hardness in order to stably support the arm and elbow. Yes. Such a hardness difference can be realized by appropriately adjusting the molding material to be put into the molding space for the seat portion elastic body 21 and the molding material to be put into the molding space for the side portion elastic body 22. .

  As described above, in the present embodiment, the lower region (that is, the rear region) of the vertical suspension grooves 13 and 13 is composed of the fiber bodies 23 and 23, and the fibers of the fiber bodies 23 and 23 are urethanes of the elastic bodies 21 and 22. The impregnation region 24 is formed by being impregnated and cured. Therefore, in the pad 7a, the strength of the portions of the vertical suspension grooves 13 and 13 that were weak in the prior art can be increased.

  Moreover, since the downward area | region (back side area | region) of the vertical suspension grooves 13 and 13 consists of the fiber bodies 23 and 23, the air permeability of the pad 7a is ensured.

  Moreover, the seating part elastic body 21 having an appropriate elasticity gives the seated person appropriate cushioning properties. Further, the side elastic bodies 22 and 22 having an appropriate hardness although having elasticity stably support the arm and elbow of the seated person.

(Second Embodiment of Sheet Pad)
A second embodiment of the pad of the sheet of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same member as 1st Embodiment shown in FIG. 3, or an equivalent part. In the seat of this embodiment, particularly the pad 17a of the vehicle seat, the seating portion elastic body 21 is different from the material of the seating portion elastic body 21 of the pad 7a in FIG. Further, the fiber bodies 33, 33 of the present embodiment are different in shape from the fiber bodies 23, 23 of the first embodiment.

  In the present embodiment of FIG. 5, the seating part elastic body 21 and the side part elastic body 22, that is, the whole of the elastic bodies 21 and 22 have a hardness having cushioning properties suitable for the seating part elastic body 21. For this reason, the side elastic bodies 22 and 22 do not have a sufficiently high hardness to stabilize the arms and elbows.

  The fiber bodies 33 and 33 in this embodiment are the groove fiber body parts 33a and 33a provided from the lower ends of the vertical suspension grooves 13 and 13 to the back surface of the pad 17a, and the groove fiber body parts 33a and 33a from the upper side to the side. Side elastic bodies 22, 22 and side fiber bodies 33b, 33b provided to be inclined upward. Here, the front ends of the side fiber bodies 33 b and 33 b are placed in the middle (that is, in the middle) of the side elastic body 22.

  The boundary part between the groove part fiber body part 33a and the seating part elastic body 21, the boundary part between the groove part fiber part 33a and the side part elastic body 22, and the boundary part between the side part fiber body part 33b and the side part elastic body 22 are The urethane of the elastic bodies 21 and 22 and the fiber body 33 are impregnated with each other to form the impregnation region 24. The impregnation region 24 is formed by arranging fiber bodies 33 and 33 between a forming space for forming the seating portion elastic body 21 and a forming space for forming the side portion elastic body 22, and forming them. When the elastic bodies 21 and 22 are foam-molded by supplying urethane foam material into the space, they can be formed inevitably.

  As described above, in this embodiment, the lower region (that is, the rear region) of the vertical suspension grooves 13 and 13 is composed of the fiber bodies 33 and 33, and the fibers of the fiber bodies 33 and 33 are urethanes of the elastic bodies 21 and 22. Since the impregnated region 24 is formed by impregnating and hardening, the strength of the pad 17a in the portion of the vertical hanging grooves 13, 13 that has been weak in strength can be reinforced.

  Moreover, since the downward area | region (back side area | region) of the vertical suspension grooves 13 and 13 consists of the fiber bodies 33 and 33, especially the groove part fiber body part 33a, the air permeability of the pad 17a is ensured.

  Further, the side elastic body 22 has increased hardness due to the action of the impregnation region 24 formed around the side fiber bodies 33b and 33b. For this reason, even if the seat part elastic body 21 and the side part elastic body 22 are formed of the same material urethane, the seat part elastic body 21 can obtain a hardness suitable for soft cushioning, while the side part elastic body 22 A hardness sufficiently high to stably support the arm and elbow is obtained.

  Further, the side fiber bodies 33b and 33b are inclined upward from the upper part of the groove fiber bodies 33a and 33a to the inside of the side elastic bodies 22, so In general, a uniform hardness can be obtained.

(Third embodiment of sheet pad)
A third embodiment of the vehicle seat pad of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same member as the 1st Embodiment shown in FIG. 3, and the 2nd Embodiment shown in FIG. The fiber body 43 has the groove fiber body portion 43a and the side fiber body portion 43b in the pad 27a of the seat of the present embodiment, particularly the vehicle seat. The fiber body 33 in the pad 17a in FIG. 5 has the groove fiber body portion 33a. And it is the same as having the side part fiber body part 33b.

  The pad 27a of the present embodiment is different from the pad 17a of FIG. 5 in that the tip of the side fiber body 33b is placed in the middle of the side elastic body 22 in the pad 17a of FIG. In the pad 27a of this embodiment, the tip of the side portion fiber body portion 43b is formed to extend to the outer peripheral end of the side portion elastic body 22, and the tip is exposed to the outside.

  According to the present embodiment, in addition to the effect that the pad 17a of FIG. 5 can achieve, since the tip of the side portion fiber body portion 43b is open to the outside, in addition to the air permeability by the groove portion fiber body portion 43a, The part fiber body part 43b can ensure air permeability, and as a result, the air permeability of the pad 27a can be improved.

(Other embodiments)
In the above embodiment, the present invention is applied to the seat cushion 1 of the front seat 3 as the vehicle seat of FIG. However, the present invention can be applied to the seat back 2 instead of or in addition to this. Specifically, the pad 7b covered by the skin 8b of the seat back 2 can be formed by the pad 7a shown in FIG. 3, the pad 17a shown in FIG. 5, the pad 27a shown in FIG. In these cases, the elastic body 21 for the seating portion 16 functions as a elastic body for the backrest portion 19.

  In the above embodiment, the embodiment in which the present invention is applied to the vertical hanging groove 13 in FIG. 2 has been described. However, the present invention can also be applied to the lateral suspension groove 14.

  In the above embodiment, the present invention is applied to a single seat front seat, but the present invention can also be applied to a single seat rear seat and a multiple seat rear seat.

  In the above embodiment, the present invention is applied to a vehicle seat as a seat. However, the present invention can also be applied to cushions, chairs, seats other than those for vehicles, and other seats.

  1. 1. Seat cushion (vehicle seat), 2. seat back (vehicle seat); Front seat (vehicle seat), 6a, 6b. Frames, 7a, 7b. Pads 8a, 8b. Epidermis, 11a, 11b. Vertical seams, 12a, 12b. Transverse seam, 13. Vertical suspension groove, 14. Lateral suspension groove, 16. Sitting portion of the epidermis, 17a. Pads, 18a, 18b. Side part of the epidermis, 19. The back of the epidermis, 21. 21. Seating part (elastic body) of the pad, Side part of pad (elastic body), 23, 33, 43. Fiber body, 24. Impregnation region, 26. Hanging bag, 27a. Pad, 28. Steel wire, 33a, 43a. Groove fiber body part, 33b, 43b. Side fiber body

Claims (8)

It has a resilient body that gives elasticity to the seated person and a groove for fixing the skin, and the resilient body and the groove are formed in a pad of a sheet formed by a molding process,
One end has a fibrous body which is provided inside the elastic body as the other end of Ri connected to the groove is exposed to the outside,
The elastic body is a urethane foam molded body, and the fiber body is a three-dimensional network formed by three-dimensionally meshing a synthetic resin fiber material.
A boundary portion between the elastic body and the fibrous body Ri impregnation zone der of said elastic body and said fiber body is formed by impregnating each other,
The pad of the sheet, wherein the hardness value of the impregnation region is larger than the hardness value of the elastic body and the hardness value of the fiber body . It has a main part that mainly receives the weight of the seated person and a side part that is provided on a side part of the main part,
The main body part and the side part are formed by the elastic body,
The groove claim 1 Symbol mounting pad sheet, characterized in that provided on the boundary portion between the side portion and the main portion. The pad of the sheet according to claim 2 , wherein the elastic body of the side portion is harder than the elastic body of the main body portion. The fiber body includes a groove fiber body portion connected to the groove, and a side fiber body portion provided from the groove fiber body portion to the inside of the side portion. The pad of the sheet according to 2 . The pad of the sheet | seat of Claim 4 which the front-end | tip of the said side part fiber body part is extended to the outer peripheral end of the said side part, and is exposed outside. The pad of the sheet according to claim 4 or 5, wherein the side fiber body part is provided so as to be inclined from the groove fiber body part toward the inside of the side part. The said impregnation area | region is formed by supplying the material of the said elastic body into the space for shaping | molding which puts the said fiber body, and making it foam-molding, The any one of Claim 1 to 6 characterized by the above-mentioned. The pad of the sheet as described in. A sheet comprising a pad covering the periphery of the pad, wherein the pad is a pad of the sheet according to any one of claims 1 to 7 .

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