JP2012240620A - Headrest with assist grip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such the problems that there is the risk of damaging appearance design when an assist grip is provided on a seat back, and mounting on the seat of a general model is difficult in terms of costs when the assist grip is stored in a headrest so as to be withdrawn.SOLUTION: The assist grip 18 is in a vertically long cylindrical shape with a bottom, has a flange 18a at the upper end opening thereof, and is molded from a sewable soft material, an elastomer, for instance. The flange is sewn to the trim cover 16a of the headrest respectively and the trim cover 16 and the pair of assist grips 18 are integrated. A sidewall at the rear part of the assist grip is projected to form a handle part 18c', left and right stays 16b of the headrest are placed on the outer side of the handle part behind the pair of assist grips whose bottom surfaces are positioned oppositely, the trim cover, the pair of assist grips and the stays are set to an integral molding die, a foaming agent is injected to the integral molding die and foam molding is performed.

Description

  The present invention relates to a headrest that is attached to a vehicle seat or the like by providing a grip (assist grip) that assists a passenger in a rear seat to get on and off.

2. Description of the Related Art A vehicle seat provided with an assist grip is known for assisting passengers getting on and off a rear seat. The assist grip is L-shaped, gate-shaped, etc. in consideration of ease of gripping, and is provided on the outer side of the seat back of the front seat (outer side; for example, JP 2010-137653 A), It is provided on the back surface (Japanese Patent Application Laid-Open No. 2010-083374) or the like, and necessary strength is secured by being fixed to the seat back frame.
A seated person in the rear seat can easily get up and get off in a stable posture by grasping the assist grip on the side or back of the seat back of the front seat, and can get on comfortably by grabbing the assist grip and pulling up the body. Further, lateral movement in the vehicle can be smoothly performed by grasping the assist grip, and further, when the vehicle is traveling on a sharp curve, it can be countered against left and right shakes of the body by grasping the assist grip.

In addition, since the headrest is attached to the upper end of the seatback of the front seat, a seated person in the rear seat may get on and off by grabbing the headrest. Therefore, a configuration is also known in which the assist grip is provided not on the seatback of the front seat but on the headrest of the front seat. For example, in Japanese Patent Laid-Open No. 2003-072443, a vertically long hole penetrating in the horizontal direction is formed in the headrest to define a storage space, and a pair of gate-shaped assist grips are retractably stored in the storage space. Yes. A pair of assist grips are locked and stored, and when getting on and off or when moving laterally in the vehicle, the lock is unlocked, pulled out to the left and right, locked in the pulled out position, and then the assist grip is grabbed to get on and off or move laterally. .
Since the left and right stays of the headrest are attached to the upper shaft of the seat back frame via the headrest holder (stay holder), the headrest can sufficiently withstand the traction force when the assist grip is grasped.

JP 2010-137653 A JP 2010-083374 A JP 2003-072443 A

In the configuration in which the assist grip is provided on the side surface of the seat back, the lateral width of the seat back is limited and the appearance design may be impaired. Here, if a recess is provided on the side surface of the seat back and the assist grip is stored in the recess, the lateral width of the seat back is not limited and the appearance design is improved. However, the configuration of the seat back is inevitable.
Further, in the configuration in which the assist grip is provided on the back surface of the seat back, the back surface of the seat back gives a complicated impression, and the appearance design may be impaired.

In the configuration in which the assist grip is retractably stored in the headrest, the appearance design is not impaired because the assist grip is normally stored. However, the assist grip must be pulled out from the headrest prior to use, and cannot be used conveniently.
In addition, because the structure of the assist grip is complicated because it can be pulled out, a headrest with an assist grip cannot be obtained at a low cost, and a work process for incorporating the assist grip into the headrest is required. Has also become an obstacle to mounting seats on general models.
An object of the present invention is to provide a headrest with an assist grip that has a simple configuration and can be easily mounted on a seat of a general vehicle type and is inexpensive.

  According to the first aspect of the present invention, a pair of assist grips having a bottomed cylindrical shape and a flange at the upper end opening are formed from a sewn soft material, and the flanges of the assist grips are sewn to the trim cover of the headrest. The trim cover and the pair of assist grips are integrated, and the left and right stays of the headrest are placed behind the pair of assist grips whose bottom faces are opposed to each other. It is set and foamed by injecting a foaming agent into the integral mold.

According to the first aspect of the present invention, the assist grip is merely formed into a shape having a bottomed cylindrical shape with a flange at its upper end opening from a soft material that can be sewn, and the configuration is simple and can be formed at low cost. In addition, in forming the headrest, only the flange of the assist grip is sewn on the trim cover, and other than that, there is no difference from normal foaming of the headrest. Of course, the assist grip is integrated with the headrest by sewing, and there is no need to incorporate the assist grip into the headrest. Therefore, even though the assist grip is built in, the headrest with assist grip can be obtained at low cost from both the production and work costs without complicating the structure of the headrest and making it difficult to form. It can be easily mounted on seats of general car models.
Further, since the assist grip is built in the headrest, the appearance design is not impaired, and it is not necessary to pull it out even when it is used.

The schematic perspective view of the vehicle seat with which the headrest with an assist grip concerning one example of the present invention was equipped is shown. (A), (B), and (C) are a perspective view, a side view, and a perspective view of an assist grip built in the headrest, respectively, of a headrest with an assist grip according to an embodiment of the present invention. FIG. 3 shows a cross-sectional view of the headrest along line AA in FIG.

  The assist grip is set in an integral mold together with the trim cover and the stay, and a foaming agent is injected into the integral mold to form a headrest with an assist grip by foam molding. That is, the assist grip has a vertically long bottomed cylindrical shape, has a flange at the upper end opening thereof, and is formed from a soft material that can be sewn, for example, an elastomer. The flange of the assist grip is sewn to the trim cover of the headrest, so that the trim cover and the pair of assist grips are integrated. From the middle part to the bottom part, the rear side wall of the assist grip protrudes rearward to form the handle part, and the left and right stays of the headrest are placed outside the handle part behind the pair of assist grips whose bottom faces are opposed to each other. A trim cover, a pair of assist grips, and a stay are set in an integral mold, and a foaming agent is injected into the integral mold for foam molding.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a vehicle seat fitted with a headrest with an assist grip according to an embodiment of the present invention. In the embodiment, the seat is a vehicle seat 10 configured by juxtaposing two front seats 12F and two rear seats 12R. The front seat 12F and the rear seat 12R are composed of a seat cushion 14C and a seat back 14B provided at the rear end of the seat cushion, and a headrest 16 is mounted on the upper end of each seat back.

  The configuration of the headrest itself is well known (for example, Japanese Patent Application Laid-Open No. 2003-127741, Japanese Patent Application Laid-Open No. 2003-135198), and is not a main part of the invention. A pair of left and right stays (headrest stays) extend downward from the headrest, and the stays are attached to an upper shaft of a seat back frame (back frame) via a headrest holder (stay holder). That is, a pair of cylindrical guide brackets are welded to the upper shaft of the back frame at a predetermined distance, a cylindrical headrest holder is attached to each guide bracket, and the headrest is inserted into the center hole of each headrest holder from the upper opening. The left and right stays are inserted. The headrest holder has a shape with a head. A lock mechanism that restricts the raising and lowering of the stay is housed in the head of the headrest holder. If the lock mechanism is unlocked, the stay can be raised and lowered, that is, the headrest can be raised and lowered.

  In the present invention, the headrest 16 at the upper end of the seat back of the front seat 12F is formed with built-in assist grips 18 on the left and right side surfaces, and the headrest 16 'at the upper end of the seat back of the rear seat 12R is a normal type without built-in assist grip. Molded.

  2A, 2B, and 2C are a perspective view, a side view, and a perspective view of an assist grip built in the headrest, respectively, according to one embodiment of the present invention. FIG. FIG. 4B shows a cross-sectional view of the headrest along line AA in (B). The front, rear, left, and right refer to the directions viewed from the driver seated on the driver seat, and are indicated by Fr, Rr, L, and R.

As shown in FIGS. 2 (A), (B), (C), and FIG. 3, the assist grip 18 is formed from a soft material that can be sewn into a shape having a bottomed cylindrical shape and a flange (outer flange) 18a at the upper end opening. Examples of the soft material that can be sewn are elastomer and soft rubber.
In the embodiment, the assist grip 18 is vertically long and has a deep bottomed cylindrical shape, the opening 18b is curved backward and widened, and the rear side wall 18c extends from the middle portion to the bottom portion. A handle 18c ′ is formed protruding rearward. The flange 18a has a thick portion 18a ′ at the inner edge adjacent to the opening 18b, and the cross section of the thick portion is, for example, a substantially partial circle.

  The pair of assist grips 18 is integrated with the trim cover and incorporated into the headrest 16 by sewing its flange 18a to the trim cover 16a of the headrest. That is, as can be seen from FIG. 3, the pair of flanges 18a are sewn to the trim cover with the bottom surfaces thereof facing each other. Here, a thick part 18a ′ having a substantially circular shape is provided on the inner edge of the flange adjacent to the opening 18b to form a stepped portion, and the terminal 16a ′ of the trim cover is pressed against the stepped portion (thick portion). Since the end of the trim cover is positioned by turning it back, the flange 18a and the trim cover 16a can be easily sewn. Reference numeral 19 denotes a sewing portion of the flange 18a and the trim cover 16a.

  A pair of assist grip 18 and trim cover 16a are integrated by sewing the flange 18a of the assist grip and the trim cover 16a of the headrest, and the integrated assist grip and trim cover are integrated with the headrest stay 16b. Set. At this time, the left and right stays 16b of the headrest are positioned so as to extend along the side wall 18c behind the assist grip outside the handle portion 18c '. That is, the stay 16b is placed behind the assist grip 18 outside the handle portion 18c '.

  By injecting a foaming agent into the integral mold in which the trim cover 16a, the pair of assist grips 18 and the left and right stays 16b are set, the headrest 16 with the assist grip 18 filled with the seat pad 17 is foamed. Molded.

The assist grip 18 is simply formed into a shape having a bottomed cylindrical shape with a flange 18a at its upper end opening from a soft material that can be sewn, and the configuration is simple and can be formed at low cost. Further, in forming the headrest 16, only the assist grip flange 18a is sewn to the trim cover 16a, and other than that, there is no difference from normal foaming of the headrest. Of course, the assist grip 18 is integrated with the headrest 16 by sewing, and there is no need to incorporate the assist grip into the headrest. Therefore, even though the assist grip is built in, the headrest with assist grip can be obtained at low cost from both the production and work costs without complicating the structure of the headrest and making it difficult to form. It can be easily mounted on seats of general car models.
Further, since the assist grip 18 is built in the headrest 16, it does not impair the appearance design and does not need to be pulled out even when used, and thus can be used easily.

  The assist grip 18 has a vertically long bottomed cylindrical shape, and the vertically long opening 18b is curved rearward and widened, so that the rear seat seater's hand can be easily inserted into the assist grip opening. In addition, since the handle portion 18c 'protruding rearward is provided from the middle portion of the rear side wall 18c to the bottom portion, the rear seat seater's hand is easily caught by the handle portion so that the assist grip can be easily grasped. Therefore, when getting on and off or moving in the lateral direction, a seated person of the rear seat 12R can quickly insert a hand into the opening and grasp the assist grip without difficulty.

  Furthermore, since the stay 16b of the headrest is located behind the assist grip, the assist grip 18 receives the traction force from the rear when the stay attached to the seat back frame grabs the assist grip, and the traction grip 18 under sufficient traction force. Can be grabbed. If the assist grip 18c 'is provided outside the assist grip behind the assist grip as in the embodiment, the stay 16b can reliably receive the traction force from the rear when the assist grip is gripped.

  As described above, according to the present invention, it is possible to obtain a headrest with an assist grip that is simple and inexpensive and can be easily mounted on a seat of a general vehicle.

The above-described embodiments are for explaining the present invention, and are not intended to limit the present invention. All modifications, alterations, etc. within the technical scope of the present invention are included in the present invention. Needless to say.
For example, the rear seat may be composed of a second seat and a third seat, and the headrest of the second seat that is the front seat of the third seat may be provided with an assist grip.

  The present invention is usually applied to automobile seats, but a vehicle seat in which seats with headrests are continuously provided in the vertical direction, for example, a train, an airplane, a movie theater, a theater, It can also be applied to non-vehicle seats at concert venues.

DESCRIPTION OF SYMBOLS 10 Vehicle seat 12F Front seat 12R Rear seat 14C Seat cushion 14B Seat back 16 Headrest 16a Trim cover 16a 'Trim cover end 18 Assist grip 18a Flange 18b Open 18c Outer side wall 18c' Handle part

Claims (3)

A pair of assist grips with a bottomed cylindrical shape and a flange at the upper end opening are molded from a soft material that can be sewn,
The flange of the assist grip is sewn to the trim cover of the headrest, and the trim cover and the pair of assist grips are integrated.
Place the left and right stays of the headrest behind a pair of assist grips whose bottom faces are opposite to each other, and set the trim cover, a pair of assist grips, and stays in an integral mold,
A headrest with assist grip that is foam-molded by injecting a foaming agent into an integral mold. The assist grip has a bottomed cylindrical shape with a substantially rectangular cross section, its opening is curved and widened rearward, and its rear side wall protrudes rearward from the middle part to the bottom part to form a handle part. The headrest with an assist grip according to claim 1. The headrest with an assist grip according to claim 1 or 2, wherein the assist grip is formed from an elastomer.

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