JP2010022442A - Seat for automobile seat, and seat body for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for automobile seat which is excellent in productivity, is light-weight, can sufficiently contribute to the environmental preservation while having a small environmental load, and at the same time, can increase a vehicle interior space. <P>SOLUTION: This seat 1 for automobile seat consists of a non-sewn knitted fabric which is knitted by a weft knitting machine. The non-sewn knitted fabric includes a central knitted fabric section 2, and a peripheral edge knitted fabric section 3 which is connected with at least a part of the outer periphery of the central knitted fabric section 2 without sewing, and is knitted into a cylindrical shape. At least a part of the constituting yarn of the non-sewn knitted fabric is constituted of a heat-fusion yarn. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a seat for an automobile seat used as a backrest seat, a seat seat, or the like of an automobile seat.

Conventionally, an automobile seat body is manufactured through the following processes, for example. That is,
1) A knitting process for knitting yarn to produce a knitted fabric 2) A set processing process 3) A skin body in which a urethane foam sheet (cushion material) having a thickness of about 5 mm is integrated on the back surface of the knitted fabric (skin material). Lamination process 4) Cutting process in which the obtained skin is cut into each part of the seat such as the front part of the backrest, the back part, the left side part, the right side part, and the top part (see Patent Document 1)
5) A sewing process in which the cut portions are combined and sewn in a three-dimensional shape (see Patent Document 1).
6) Mounting process for mounting on the seat housing (see Patent Document 1)
An automobile seat body was manufactured through these six steps. In addition, although patent document 1 is related with the detachable vehicle seat cover, the skin | leather material of the seat body of the motor vehicle was manufactured through the cutting process and sewing process similar to patent document 1. FIG.
JP 2003-93202 A

  By the way, in recent years, from the viewpoint of improving fuel efficiency, there has been a demand for further weight reduction as a structural member of an automobile, and there is a strong demand for further weight reduction as a seat seat of an automobile. .

  Moreover, in the said prior art, since it manufactured through the six above-mentioned processes, there existed a problem that production efficiency was bad.

  Further, the above-described conventional skin of a car seat has a configuration in which a urethane foam sheet is laminated on the back surface of the knitted fabric skin material, and thus has a problem in that it has a large environmental load when discarded.

  Furthermore, in the above prior art, the epidermis is cut into each part such as the back support front portion, the back portion, the left side portion, the right side portion, and the top portion, so that a lot of cut material is generated and discarded. In some cases, there was still a problem that the environmental load was large.

  In addition, since the seat of a conventional automobile has a considerable thickness in the front-rear direction, there is a problem that a sufficient space in the vehicle interior cannot be secured.

  The present invention has been made in view of such a technical background, and is an automobile that is excellent in productivity, is lightweight, has a small environmental load, can sufficiently contribute to environmental conservation, and can increase a vehicle interior space. The object is to provide a seat for a seat and an automobile seat.

  In order to achieve the above object, the present invention provides the following means.

[1] It consists of a non-sewn knitted fabric knitted by a flat knitting machine,
The non-sewn knitted fabric is
A central knitted fabric,
A peripheral knitted fabric portion connected to at least a part of the outer periphery of the central knitted fabric portion without sewing and knitted in a cylindrical shape,
A seat for an automobile seat, wherein at least a part of the constituent yarn of the non-sewn knitted fabric is constituted by a heat-sealing yarn.

[2] The central knitted fabric portion includes a double jersey structure,
The seat for an automobile seat according to the preceding item 1, wherein the peripheral knitted fabric portion is knitted into a cylindrical shape by a single jersey structure.

  [3] The seat for an automobile seat according to the above item 1 or 2, wherein a monofilament heat fusion yarn of 160 to 2220 dtex is used as the heat fusion yarn.

  [4] The seat for automobile seats according to any one of items 1 to 3, wherein the heat-sealing yarn is subjected to a fusion treatment by heating.

  [5] The seat for an automobile seat according to any one of items 1 to 4, which is used as a backrest seat.

[6] The automobile seat according to any one of items 1 to 5,
A support frame that supports the seat for the vehicle seat in a stretched state by being inserted and disposed inside the cylindrical peripheral knitted fabric portion of the seat for the automobile seat;
An automobile seat body comprising:

  [7] The automobile seat body according to [6], wherein the support frame has a cross-sectional shape in which a cushion member is coated on an outer peripheral surface of a hard core material.

  The seat for an automobile seat according to the invention of [1] comprises a non-sewn knitted fabric knitted by a flat knitting machine, and the non-sewn knitted fabric includes at least a central knitted fabric portion and an outer periphery of the central knitted fabric portion. It is configured to include a peripheral knitted fabric portion that is connected to a part without sewing and is knitted in a cylindrical shape, and with the seat for the automobile seat, a good backrest feeling and a feeling of sitting can be obtained. Because there is no need to laminate a cushion body such as urethane foam sheet on the back as in the conventional configuration, it is lightweight, has a low environmental load and can contribute to environmental conservation, and has enough space in the passenger compartment. Can be secured. In addition, it is composed of a non-sewn knitted fabric knitted by a flat knitting machine, and it is not necessary to cut into each part such as the front surface, back surface, left side surface, right side surface as in the conventional configuration, and the material to be cut Therefore, environmental impact is small and it can contribute to environmental conservation. Moreover, since the 3) lamination process, 4) the cutting process, and 5) the sewing process can be omitted among the conventional 6 processes described in the section of the background art, productivity can be significantly improved. Furthermore, since at least a part of the constituent yarn of the non-sewn knitted fabric is made of a heat-sealing yarn, the heat-sealing yarn is subjected to a fusing process by heating, so that a sufficient strength as a seat for an automobile seat can be obtained. Can be secured.

  In the invention of [2], since the central knitted fabric portion is configured to include a double jersey structure, it is possible to further improve the feeling of being backed and sitting. Further, since the peripheral knitted fabric portion has a single jersey structure, a sufficient space for inserting the support frame can be secured, and thereby the operation of inserting the support frame can be easily performed.

  In the invention of [3], a 160 to 2220 dtex monofilament heat-sealing yarn is used as the heat-sealing yarn, so that it is possible to provide a seat for an automobile seat having more sufficient strength.

  In the invention of [4], since the heat-sealing yarn is fusion-bonded by heating, it is possible to sufficiently prevent the knitting yarn from fraying and to provide a seat for an automobile seat having sufficient strength.

  In the invention of [5], there is provided a back seat for an automobile seat that is excellent in productivity, is light in weight, has a small environmental load, can sufficiently contribute to environmental conservation, and can increase a vehicle interior space.

  In the invention of [6], the seat for the seat is stretched by inserting the support frame into the cylindrical peripheral knitted fabric portion of the seat for a car seat of any of the above [1] to [5]. Since it is supported in the installed state, an automotive seat body that provides a good feeling of backrest and seating is provided. In addition, since any one of the above [1] to [5] is used as a seat for an automobile seat, it is excellent in productivity, is light in weight, has a small environmental load, and can sufficiently contribute to environmental conservation. An automobile seat body capable of increasing space is provided.

  In the invention of [7], the support frame has a cross-sectional shape in which the outer peripheral surface of the hard core material is covered with the cushion member, so that the hard part is not exposed as the seat body, and the safety is sufficient. Can be secured.

  One embodiment of a vehicle seat (1) according to the present invention is shown in FIG. FIG. 2 is a perspective view from the front side showing a state in which the vehicle seat (1) is mounted on the support frame (21) shown in FIG. 4, and FIG. 3 is a perspective view similarly from the back side.

  The automobile seat (1) is a non-sewn knitted fabric knitted by a flat knitting machine. The flat knitting machine is not particularly limited. For example, a non-sewn knit flat knitting machine “Hall Garment” manufactured by Shima Seiki Seisakusho is suitable.

  The vehicle seat (1) is directed outward in a manner that surrounds three of the four sides of the central knitted fabric portion (2) having a substantially rectangular shape in plan view and the central knitted fabric portion (2). The extended peripheral knitted fabric portion (3) and the left side of the central knitted fabric portion (2) (bottom side in FIGS. 1 to 3) are extended outward (downward) from a substantially rectangular shape in plan view. A lower extended knitted fabric portion (10) having a shape and a left tongue knitted fabric portion for attachment (11) having a substantially rectangular shape in plan view and extending outward from the lower extended knitted fabric portion (10). ) And a right tongue piece knitted fabric portion (12) for attachment (see FIGS. 1 to 3). These knitted fabric portions (2), (3), (10), (11), and (12) are knitted without sewing by a non-sewing knit flat knitting machine “Hall Garment” manufactured by Shima Seiki Seisakusho. That is, these knitted fabric parts (2), (3), (10), (11), and (12) are knitted in a connected state without sewing.

  In the present embodiment, the peripheral knitted fabric portion (3) is knitted into a cylindrical shape by a single jersey structure (8) (see FIGS. 5 and 7). That is, a frame insertion space (18) is formed inside the peripheral knitted fabric portion (3). The support frame (21) is inserted and disposed in the insertion space (18). The axial direction (length direction) of the cylindrical shape of the peripheral knitted fabric portion (3) is substantially the same as the length direction of each corresponding side in the central knitted fabric portion (2).

  In the present embodiment, the central knitted fabric portion (2) having a substantially rectangular shape in plan view includes a right shoulder portion (31) made of a double jersey structure (7) and the right side portion as shown in FIGS. A first curved line portion (34) composed of a single jersey structure (8) knitted to be connected to the shoulder portion (31), and a double jersey structure (knitted to be connected to the first curved line portion (34) ( 7), a second curved line portion (35) composed of a single jersey structure (8) knitted to be connected to the diagonal line portion (32), and the second curved line portion (35). ) And a left lumbar part (33) composed of a double jersey structure (7) knitted in a continuous manner.

  In the present embodiment, the central knitted fabric portion (2) has a part of the constituent yarns composed of heat-sealing yarns (4) (see FIG. 6). That is, in this embodiment, as shown in FIG. 6, in the central knitted fabric portion (2), one heat-sealing yarn (4) is arranged for two filament processed yarns (5). A knitting structure (unit structure in which one of the three is a heat-sealing yarn) in which unit units are sequentially arranged is employed.

  In the present embodiment, the peripheral knitted fabric portion (3) is also composed of a part of the constituent yarn of the heat-sealing yarn (4). That is, in the present embodiment, the peripheral knitted fabric portion (3) is repeatedly arranged with unit units in which one heat-sealing yarn (4) is arranged with respect to two filament processed yarns (5). The knitted structure (the knitted structure in which one of the three is a heat-sealed yarn) is employed.

  The heat fusion yarn (4) is not particularly limited. For example, a core-sheath heat fusion yarn is preferably used. As the heat-sealing yarn having such a core-sheath structure, for example, a sheath made of a polyester-based thermoplastic elastomer resin having a melting point of 182 ° C. on the outer peripheral surface of a core made of a polyester-based thermoplastic elastomer resin having a melting point of 210 ° C. An example is a heat-sealed yarn in which a part (melted part) is coated.

  Among these, as the heat fusion yarn (4), a monofilament heat fusion yarn of 160 to 2220 dtex is suitable, and a monofilament heat fusion yarn of 160 to 660 dtex is particularly preferred. In this case, fraying of the knitting yarn can be sufficiently prevented and sufficient strength can be imparted as the automobile seat (1).

  Next, an embodiment of an automobile seat body (20) according to the present invention will be described. The vehicle seat body (20) includes the vehicle seat (1) and a support frame (21).

  As shown in FIG. 4, the support frame (21) is formed in a substantially U-shape corresponding to the shape and size of the peripheral knitted fabric portion (3) of the automobile seat (1). The support frame (21) has a cross-sectional shape in which the outer peripheral surface of the hard core member (22) is covered with the cushion member (23) (see FIG. 5).

  Thus, the support frame (in the cylindrical inner space of the peripheral knitted fabric portion (3) of the automobile seat (1), that is, in the frame insertion space (18) of the peripheral knitted fabric portion (3). 21) is inserted and arranged, thereby obtaining an automobile seat body (20) in which the seat seat (1) is supported in a stretched state by a support frame (21) (see FIGS. 2 and 3).

  In this stretched state, the heat-sealing yarn (4) is subjected to a fusing process by heat treatment. That is, the heat fusion yarn (4) is melted by heat treatment, and the heat fusion yarn (4) is fused to, for example, the processing yarn (5) adjacent to the heat fusion yarn (4) and the heat fusion yarn (4). ) Adjacent loops are fused (see FIG. 6). By performing such a heat-sealing yarn (4) fusion treatment, fraying of the knitting yarn can be sufficiently prevented, and the strength of the knitted fabric can be improved.

  Thereafter, the bottom frame (27) of the T-shaped frame (25) is attached and fixed to both lower ends of the substantially U-shaped support frame (21) (see FIGS. 2 and 3). That is, the fitting protrusions (27a) at both ends of the bottom frame (27) are fitted into the fitting grooves (21a) at both lower ends of the support frame (21), respectively, and are fixedly joined (see FIG. 4).

  Further, the lower left side knitting piece for mounting is provided by turning the lower extended knitted fabric portion (10) of the seat (1) for the automobile seat from the back side to the front side below the bottom frame (27). The ground portion (11) and the right tongue piece knitted fabric portion (12) for mounting are arranged on the front side of the bottom frame (27), and then the left tongue piece knitted fabric portion (11) for folding, which is folded in layers, is placed. It is bonded and fixed to the front surface of the bottom frame (27), and the folded right tongue knitted fabric portion (12) for folding is bonded and fixed to the front surface of the bottom frame (27) (see FIGS. 2 and 3).

  Next, the vehicle seat body (20) can be mounted and fixed in a stable state in the automobile by joining and fixing the pedestal portion (26) of the T-shaped frame (25) to the floor casing of the automobile.

  In the vehicle seat body (20) configured as described above, the support frame (21) is inserted into the frame insertion space (18) inside the cylindrical peripheral knitted fabric portion (3) of the vehicle seat (1). By doing so, since the seat for seat (1) is supported in the stretched state (see FIGS. 2 and 3), a good backrest feeling can be obtained. Moreover, since the support frame (21) has a cross-sectional shape in which the outer peripheral surface of the hard core material (22) is covered with the cushion member (23) (see FIG. 5), sufficient safety for the rider is ensured. can do.

  Further, the seat (1) for an automobile seat according to the above configuration can provide a good backrest feeling without having to laminate a cushion body such as a urethane foam sheet on the back surface as in the conventional configuration, that is, the urethane foam sheet. Thus, it is not necessary to use a cushion body such as a light weight, and the weight is light, the environmental load at the time of disposal is small, and it can sufficiently contribute to environmental conservation, and also a sufficient space in the vehicle compartment can be secured. In addition, the automobile seat (1) does not need to be cut into each part such as the front portion, the back portion, the left side portion, and the right side portion as in the conventional configuration, and no cutting breakage material is produced. It is small and can contribute enough to environmental conservation. Moreover, since the 3) lamination process, 4) the cutting process, and 5) the sewing process can be omitted among the conventional 6 processes described in the section of the background art, productivity can be significantly improved. Further, since at least a part of the constituent yarn of the automobile seat (1) is constituted by the heat fusion yarn (4), and the heat fusion yarn (4) is subjected to the fusion treatment by heating, the knitting The fraying of the yarn can be sufficiently prevented, and sufficient strength can be secured as the automobile seat (1).

  In the present invention, as the support frame (21), it is preferable to use a support frame having a cross-sectional shape in which the outer peripheral surface of the hard core material (22) is covered with the cushion member (23). Although it does not specifically limit as a raw material which comprises the said hard core material (22), For example, metals, such as iron and aluminum, are mentioned. Moreover, as a raw material which comprises the said cushion member (23), although it does not specifically limit, Elastic members, such as rubber | gum and a thermoplastic elastomer, are mentioned, for example.

  Further, when the support frame (21) having a length (L) in the front-rear direction in the cross section of the portion corresponding to the side portion of the seat is 3 cm or more, as shown in FIG. It is possible to construct a so-called “bucket seat” that wraps around the side of the human body, and sufficiently suppresses the rolling of the human body when the vehicle receives a lateral G (lateral force) during cornering or the like. Will be able to. When configuring such a bucket seat, the width (W) of the peripheral knitted fabric portion (3) of the vehicle seat (1) is preferably set to 3 to 20 cm (see FIG. 1).

  In the above-described embodiment, the central knitted fabric portion (2) is configured to include both the double jersey structure (7) and the single jersey structure (8). It is not limited, For example, the structure which consists only of a double jersey structure | tissue (7) may be sufficient, and the structure which consists only of a single jersey structure | tissue (8) may be sufficient. Alternatively, the central knitted fabric portion (2) may be composed of another knitting structure such as a ripple structure or a honeycomb mesh structure, or may include other knitting structures such as a ripple structure or a honeycomb mesh structure. The structure which becomes may be sufficient.

  Moreover, you may employ | adopt the structure by which the knitted fabric part for pockets (for storing) was connected to the back side (back side) of the central knitted fabric part (2) without sewing.

  Moreover, in the said embodiment, although the structure which consists of a single jersey structure | tissue (8) was employ | adopted for the peripheral knitted fabric part (3), it is not specifically limited to the thing of such a structure, It is cylindrical. Any knitting structure may be used as long as it can be formed.

  Moreover, in the said embodiment, although the fusion | fusion process of the heat-fusion yarn (4) was performed in the state by which the seat (1) for motor vehicle seats was stretched | stretched by the said support frame (21), especially this is like this. The present invention is not limited to such a configuration, and for example, a fusion process may be performed in advance before the support frame (21) is stretched.

  Further, if a jacquard machine is attached to the non-sewn knit flat knitting machine “Hall Garment”, various patterns can be expressed on the seat (1) for an automobile seat.

  The automobile seat (1) and the automobile seat body (20) according to the present invention are not particularly limited to those of the above-described embodiment, and do not depart from the spirit as long as they are within the scope of the claims. Any design changes are allowed as far as possible.

  Next, specific examples of the present invention will be described, but the present invention is not particularly limited to these examples.

<Example 1>
Using an unsewn knitted weft knitting machine “Hall Garment” manufactured by Shima Seiki Seisakusho Co., Ltd. and a 6-color jacquard machine attached thereto, for an automobile seat made of an unsewn knitted fabric having the configuration shown in FIGS. A sheet (1) was produced. As shown in FIG. 6, the knitted fabric has a unit in which one monofilament heat-sealing yarn (550 dtex) (4) is arranged for two polyester filament processed yarns (1320 dtex) (5). This is a knitted structure (unit structure in which one of the three is a heat-sealed yarn) in which units are sequentially and repeatedly arranged. As the heat-fusible yarn (5), a sheath portion made of a polyester thermoplastic elastomer resin having a melting point of 182 ° C. is coated on the outer peripheral surface of the core portion made of a polyester thermoplastic elastomer resin having a melting point of 210 ° C. The heat-sealing yarn obtained was used.

  In order to improve the fit after the support frame (21) is inserted, the width (W) of the peripheral knitted fabric portion (3) is changed by the jacquard machine, and the upper width of the seat (1) for the automobile seat is set to 36. It was designed to be -38 cm, the middle width was 34-36 cm, and the lower width was 34-36 cm.

  Further, the knitting density of the right shoulder (31) and the left waist (33) is 17 to 19 courses / 14 to 16 wales, and the knitting density of the diagonal part (32) is 22 to 24 courses / 15 to 17 wales, and the peripheral knitted fabric The knitting density of part (3) was 18 to 20 course / 16 to 18 wales. Such adjustment of the knitting density was performed by a jacquard machine. By providing such a change in the knitting density, it is possible to improve the fit after the support frame (21) is inserted.

  Thus, by inserting and placing the substantially U-shaped support frame (21) shown in FIG. 4 in the frame insertion space (18) of the peripheral knitted fabric portion (3) of the automobile seat (1). Then, the seat (1) for the seat is supported in the tensioned state by the support frame (21), and the heat-sealing yarn (4) is fused by performing a heat treatment at 190 ° C. for 5 minutes in the tensioned state. An automobile seat body (20) was obtained (see FIGS. 2 and 3).

  The automobile seat according to the present invention is particularly suitable as a backrest seat of an automobile seat, but is not particularly limited to such an application, and is used, for example, as a seat seat of an automobile seat.

It is a top view which shows the seat for seats of the motor vehicle concerning one Embodiment of this invention. It is a perspective view from the front side which shows the seat body for motor vehicles formed by mounting | wearing the support frame with the seat for motor vehicle seats of FIG. It is a perspective view from the back side which shows the seat body for motor vehicles formed by mounting | wearing the support frame with the seat for motor vehicle seats of FIG. It is a perspective view which shows a support frame and a T-shaped frame in an exploded state. It is sectional drawing of the XX line in FIG. It is a knitting | organization organization chart which shows an example of the arrangement | positioning aspect of the heat fusion yarn in the seat for motor vehicle seats. It is explanatory drawing of a double jersey organization and a single jersey organization. It is sectional drawing which shows other embodiment of the seat body for motor vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car seat sheet 2 ... Central knitted fabric part 3 ... Peripheral knitted fabric part 4 ... Thermal fusion yarn 7 ... Double jersey structure 8 ... Single jersey structure 18 ... Space 20 for frame insertion ... Car seat body 21 ... Support frame 22 ... Hard core material 23 ... Cushion member

Claims (7)

It consists of a non-sewn knitted fabric knitted by a flat knitting machine,
The non-sewn knitted fabric is
A central knitted fabric,
A peripheral knitted fabric portion connected to at least a part of the outer periphery of the central knitted fabric portion without sewing and knitted in a cylindrical shape,
A seat for an automobile seat, wherein at least a part of the constituent yarn of the non-sewn knitted fabric is constituted by a heat-sealing yarn. The central knitted fabric portion comprises a double jersey structure;
The seat for an automobile seat according to claim 1, wherein the peripheral knitted fabric portion is knitted into a cylindrical shape by a single jersey structure.   The seat for automobile seats according to claim 1 or 2, wherein a monofilament heat fusion yarn of 160 to 2220 dtex is used as the heat fusion yarn.   The seat for automobile seats according to any one of claims 1 to 3, wherein the heat fusion yarn is subjected to a fusion treatment by heating.   The seat for motor vehicle seats of any one of Claims 1-4 used as a backrest sheet | seat. A seat for an automobile seat according to any one of claims 1 to 5,
A support frame that supports the seat for the vehicle seat in a stretched state by being inserted and disposed inside the cylindrical peripheral knitted fabric portion of the seat for the automobile seat;
An automobile seat body comprising:   The vehicle seat body according to claim 6, wherein the support frame has a cross-sectional shape in which a cushion member is covered on an outer peripheral surface of a hard core material.