JP4258811B2 - Swingable headrest on the front pillow - Google Patents

Description

  The present invention relates to a swingable headrest of a front pillow portion provided in a seat back of a vehicle seat.

  As a headrest for a vehicle seat, a headrest body having a substantially inverted V-shaped cross section from the front and rear pillow parts is provided, and this headrest body is installed on the upper part of the seat back with a stay, and the front pillow part is on the lower side Since the posture is held by a ratchet that swings further forward and relatively meshes with each other, a configuration is proposed in which the support position in the vicinity of the neck from the back of the occupant can be adjusted by changing the posture of the front pillow. (Patent Document 1).

  The headrest is framed by a stylus having a vertical axis portion that is pulled out from a horizontal axis portion that is inserted inside the headrest body, and a base frame that is pivotally supported by the horizontal axis portion of the stylus. A pair of ratchets that are meshed with each other by pulling and supporting the ratchet with a spring are attached to the base frame, and the rear pad part that takes in the upper side of the vertical axis part and the front pad part that covers the front plate surface of the base frame are made of foam resin. Since the foam cover is integrally formed with the trim cover, the front and rear pad portions of the cushion pad are individually accommodated by the front and rear cover portions of the trim cover.

In the headrest, since the cushion pad is formed integrally with the trim cover with the foamed resin, the foamed resin may impregnate the trim cover, and the appearance and texture may be impaired. In order to prevent the trim cover from being impregnated with the foamed resin, it is necessary to use a trim cover provided with a non-penetrable layer of the foamed resin, so that the touch becomes different and the cost becomes high.
Special table 2001-500396 gazette

  The problem to be solved by the present invention is that the cushion pad is foam-molded integrally with the frame with foamed resin, is provided with a trim cover that is separate from the cushion pad, and the trim cover is attached to the cushion pad in good appearance. The headrest body having a substantially inverted V-shaped cross section from the front and rear pillow parts is formed to have a good texture, and the front pillow part is pivotally supported by the horizontal axis portion of the stay so as to be able to swing smoothly. There is a place to compose.

  According to a first aspect of the present invention, there is provided a back cover bag-shaped front cover portion provided on the rear surface opposite to the front surface of the rear cover portion, the opening having a size capable of assembling the cushion pad from the rear pad portion. It has a trim cover formed from a bag-shaped rear cover part that has a through hole through which the vertical axis part is inserted in the bottom surface and has an opening in the front cover part as an opening. The rear pad part is assembled outside the rear cover part by projecting to the outside, the front pad part is assembled inside the front cover part and the cushion pad is accommodated inside the trim cover, and the opening part of the front cover part is further opened. The headrest body is closed by a cover plate attached and fixed to the rear plate surface of the base frame, and the headrest body is formed in a substantially inverted V-shaped cross-sectional shape.

  According to the second aspect of the present invention, the horizontal shaft portion of the stay is fitted in the U-shape, the soft foam piece is put in the U-shape by being placed on the horizontal shaft portion of the stay, and the base frame is placed on the one leg portion. Cushion with spring clips fixed together by fastening bolts that are opposed to each other of the leg parts, and the front and rear pad parts are foam-molded integrally with the frame by foamed resin via the horizontal shaft part of the stick to which the spring clips are attached It is provided with a pad.

  According to a third aspect of the present invention, an L-shaped cutting claw is provided on the rear plate surface of the base frame, a reinforcing cord is attached to the lip of the opening, and the base frame is cut with the reinforcing cord around the mouth of the opening. It is characterized by being hung on a bending claw.

  According to a fourth aspect of the present invention, a cradle for fixing the cover plate with the fitting clip is provided on the rear plate surface of the base frame, a hanging ring is provided between the upper corner edges of the opening, and the upper edge of the opening is provided. It is characterized in that is suspended on a base frame cradle with a hanging ring.

  According to a fifth aspect of the present invention, a suspension band extending inward from the upper left and right edges of the opening is provided, a J-shaped hook is attached to each end of the suspension band, and the hooks are fitted together to form the opening. The upper left and right sides are characterized by being tensioned and attached with a hanging band.

  In the swingable headrest of the front pillow portion according to claim 1 of the present invention, the longitudinal pad portion of the stay protrudes outside from the through-hole on the bottom surface, and the rear pad portion is assembled inside the rear cover portion. Since the cushion pad is housed inside the trim cover by assembling the part inside the front cover part and the opening of the front cover part is closed with a cover plate that is fixed to the rear plate surface of the base frame, the cover plate is Since the headrest body is formed by placing it on the back side of the pillow part where it cannot be seen from the outside and covering the cushion pad with a separate trim cover, the headrest body has a good texture and a generally inverted V shape. The cross-sectional shape can be formed.

  In the swingable headrest of the front pillow portion according to claim 2 of the present invention, the front rest is provided with a clip in which a soft foam piece is sandwiched in a U-shape, and the front, Since the rear pad part is foam-molded integrally with the frame with foamed resin, the foamed resin can be prevented from entering the sliding part of the spring clip that fits into the horizontal shaft part of the foam with the foam piece. The horizontal shaft portion of the stay can be supported so as to be able to swing smoothly.

  In the headrest capable of swinging the front pillow portion according to claim 3 of the present invention, the mouth edge of the opening portion is swollen from the cover plate because the mouth portion of the opening portion is hooked to the bending claws of the base frame by the reinforcing cord. It is possible to reliably prevent the occurrence of such a situation.

  In the headrest capable of swinging the front pillow part according to claim 4 of the present invention, the upper edge of the front cover part provided with the opening is formed by hooking the upper edge of the opening on the cradle of the base frame with the suspension ring. Can be maintained in a predetermined shape.

  In the headrest capable of swinging the front pillow portion according to claim 5 of the present invention, the side shape of the front cover portion provided with the opening is formed by pulling and fastening the upper and left sides of the opening with the hanging band. The shape can be maintained in a predetermined shape.

  FIG. 1 is a cross-sectional view of a swingable headrest of a front pillow portion provided in a seat back of a vehicle seat. The frame structure of the headrest includes a stay 1 for standing and holding the headrest body on the upper portion of the seat back, a spring clip 2 fitted on the axis 1a of the stay 1 so as to be slidable on the axis, and a horizontal axis of the stay 1. It is assembled from a base frame 3 that is swingably held by a spring clip 2 with the portion 1a as a vertex.

  The stay 1 is provided with a bipod formed by bending a metal pipe into a U-shape of an upper horizontal shaft portion 1a and left and right vertical shaft portions 1b (1c). As shown in FIG. 2, the stay 2 is bent in the shape of a side face so that the upper side is inclined obliquely forward from the vicinity of the substantially middle part of the longitudinal axis portions 1 b and 1 c. Further, the cross beam bar 1d is fixed by welding near the upper portion of the vertical axis 1b, 1c bent, and the vertical axis 1b, 1c is used as a leg to hold the interval by the horizontal beam bar 1d. Yes.

  The spring clip 2 is provided with a curved thin metal plate having a substantially U-shaped side surface. As shown in FIG. 3, the spring clip 2 is fastened with bolts 21 inserted through the collar 20 through the plate surfaces of both leg portions 2 a and 2 b with nuts 22. It is attached so as to be slidably fitted. Further, a buckling portion 2c that wraps under the axis of the horizontal shaft portion 1a is provided on the one leg portion 2b so as to be fitted to the horizontal shaft portion 1a of the stay 1 on the back side of the U-shape.

  The foamed piece 4 of urethane foam is sandwiched in the U-shape to the spring clip 2 so as to be applied to the axis of the horizontal shaft portion 1 a and is fastened together with bolts 21 and nuts 22. Further, the base frame 3 is applied to the one leg portion 2 b of the spring clip 2 and is fastened together by bolts 21 and nuts 22. The stopper pin 1e that restricts the swinging range of the spring clip 2 is fixed to the horizontal shaft portion 1a of the stay 1 by welding because it abuts with the one leg portion 2a of the spring clip 2 on the inside.

  As shown in FIG. 4, the base frame 3 is formed in a substantially quadrangular plate shape including a single leg portion 2 b of the spring clip 2, a central overhanging flange portion 30 fixed together by a bolt 21 and a nut 22. Things are provided. On the plate surface of the base frame 3, L-shaped cutting claws 31a, 31b, 32a, 32b, 33a to 33c for fastening the left and right edges of the opening provided in the front cover portion, which will be described later, and the lower lip are fixed. Is provided so as to protrude rearward. Further, a U-shaped cradle 34 for clipping a cover plate, which will be described later, is fixed to the rear surface by welding. The cradle 34 is provided with long holes 35a, 35b for clip fitting on the plate surface.

  The frame assembly assembled from the stay 1, the spring clip 2, and the base frame 3 is used as a base, and the cushion pad 5 is integrally foam-molded with foamed resin. The cushion pad 5 is formed of a rear pad portion 5 a that takes in the upper side of the vertical axis portions 1 b and 1 c via the horizontal shaft portion 1 a of the stay 1, and a front pad portion 5 b that covers the front plate surface of the base frame 3. ing. Since the front pad portion 5b is formed to cover the front plate surface of the base frame 3, the rear plate surface of the base frame 3 is exposed from the front pad portion 5b.

  In forming the cushion pad 5, since the foam piece 4 is sandwiched and mounted in the U-shape of the spring clip 2, the spring clip 2 in which the foamed resin fits the horizontal shaft portion 1 a of the stay 1 with the molded foam piece 4. Can be prevented from entering the frictional sliding portion. For this reason, it can comprise so that the front pillow part mentioned later may be pivotally supported by the horizontal shaft part 1a of the stay 1 so that rocking is possible smoothly. The front pad portion 5b can be integrally foam-molded by embedding a soft foam layer 5c on the front side.

  The cushion pad 5 is covered with a trim cover 6 formed separately. The trim cover 6 (see FIG. 1) is formed so that the rear pad portion 5a and the front pad portion 5b of the cushion pad 5 are individually accommodated by the rear cover portion 6a and the front cover portion 6b.

  As shown in FIG. 5, the front cover portion 6 b is formed in a back bag shape in which the opening 60 is provided on the rear surface facing the front surface of the rear cover portion. The opening 60 has a size that allows the cushion pad to be slightly compressed, so that it can be assembled inside the rear pad. As shown in FIG. 6, the rear cover portion 6 a is formed in a bag shape having through holes 61 a and 61 b through which the longitudinal axis portion of the stay is inserted on the bottom surface and the opening of the front cover portion as an opening.

  Specifically, as shown in FIG. 7, a wide central portion is formed from the front surface side of the front cover portion 6 b to the rear surface side of the rear cover portion 6 a and from the bottom surface side of the rear cover portion 6 a to the lower surface on the front surface side. The belt 62 is formed of side gussets 63a, 63b, 64a, and 64b that form the left and right sides of the rear cover 6a and the front cover 6b, and a contact portion 65 that forms the front side of the rear cover 6a. ing. Among these, the belt | band | zone part 62 and each gusset part 63a, 63b, 64a, 64b can be formed with a main skin, a synthetic leather, and a fabric. The contact portion 65 may be formed from cloth such as force cloth.

  Suspended cloths 67a to 67c provided with reinforcing cords 66a to 66c made of a hard resin are sewn to the ends of the band portion 62 forming the front cover portion 6b and the inner end edges of the side gusset portions 64a and 64b. The hanging cloths 67b and 67c of the side gusset parts 64a and 64b are provided with left and right hanging bands 68a and 68b extending inward near the upper part of the front cover part 6b, and can be fitted to the respective ends. J-shaped hooks 68c and 68d are attached. In the contact portion 65, a suspension ring 69a is provided between the upper corner edges of the opening. Also here, a reinforcing cord 69b made of hard resin is attached.

  As shown in FIG. 8 (only one side is shown), the band portion 62 and the side gusset portions 63a and 64a are stitched together at the outer edge of each other (including those that appear in the table and those that do not appear, and the stitches are dotted lines) The same applies hereinafter. The front and rear side gussets 63a and 64a are stitched together by a length corresponding to the pad thickness extending on the upper side through the horizontal axis portion of the stay.

  As shown in FIG. 9, the contact portion 65 is sewn to the end of the belt portion 62 that forms the rear cover portion 6a and the inner edge of the side gusset portions 63a and 63b. A portion of the hanging cloths 67b and 67c provided with the hanging bands 68a and 68b and a portion corresponding to the base portion of the hanging ring 69a are also stitched together.

  The cushion pad 5 is assembled to the trim cover 6 from the opening 60 of the front cover portion 6b. The rear pad portion 5a is completely accommodated in the rear cover portion 6a because the longitudinal axis portions 1b and 1c of the stay 1 are inserted into the through holes 61a and 61b provided on the bottom surface of the rear cover portion 6a and protruded to the outside. It is done. At this time, if the front cover portion 6b is placed upside down, the rear pad portion 5a can be easily accommodated in the rear cover portion 6a. The front pad portion 5b can be accommodated inside the front cover portion 6b because the front cover portion 6b is turned upside down after the rear pad portion 5a is assembled.

  As shown in FIG. 10, the front cover 6 b pulls the hanging cloths 67 a to 67 c inward to hang the reinforcing cords 66 a to 66 c on the cutting claws 31 a, 31 b, 32 a, 32 b, 33 a to 33 c of the base frame 3. stop. As a result, it is possible to reliably prevent the occurrence of a situation in which the lip of the opening 60 starts to sag.

  Next, by hanging the upper edge of the opening 60 on the cradle 34 of the base frame 3 with the suspension ring 69a, the upper shape of the front cover 6a can be maintained in a predetermined shape. Further, the hooks 68c and 68d of the hanging bands 68a and 68b are fitted to each other, and the upper and left sides of the opening 60 are tensioned and attached by the hanging bands 68a and 68b. Thereby, the shape of the side part of the front cover part 6b can be maintained in a predetermined shape with good appearance.

  The opening 60 of the front cover portion 6b is closed by the cover plate 7 because the synthetic resin cover plate 7 (see FIG. 1) is clipped to the cradle 34 of the base frame 3. The cover plate 7 is provided with a substantially quadrangular plate shape. As shown in FIG. 11, the cover plate 7 is provided with an anchor clip 7a (7b) that is press-fitted into the long hole 35a (35b) of the cradle 34 on the front side. Further, the overhang edge 7c is provided on the upper side so as to receive the nut 22 for fastening the clip.

  In the swingable headrest of the front pillow portion configured as described above, as shown in FIG. 12, the cover plate 7 is arranged on the rear side of the front pillow portion at a site that cannot be easily seen from the outside, and is a separate trim formed Since the headrest body is formed by covering the cover 6 with the cushion pad 5, the headrest body can be formed in a substantially inverted V-shaped cross-sectional shape with good texture and good appearance.

It is side sectional drawing which shows the headrest of the vehicle seat which can rock | fluctuate the front pillow part which concerns on this invention. It is a side view which shows the frame which comprises the headrest of FIG. It is a side view which shows the attachment site | part of the spring clip in the frame of FIG. It is a rear view which shows the mounting part of the base frame in the frame of FIG. It is sectional drawing which shows the front cover part of the trim cover which comprises the headrest of FIG. 1 from the rear surface side. It is sectional drawing which shows the rear cover part of the trim cover which comprises the headrest of FIG. 1 from the front side. It is an expanded view which shows each cover part of the trim cover which comprises the headrest of FIG. It is a side view which shows the sewing structure of the trim cover which comprises the headrest of FIG. It is a top view which shows the sewing structure of the trim cover which comprises the headrest of FIG. It is sectional drawing which shows the terminal processing structure of the trim cover which comprises the headrest of FIG. 1 from the rear surface side of a front cover part. It is sectional drawing which shows the cover plate with which the headrest of FIG. 1 is equipped. It is a cross-sectional view which shows the headrest of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stay 1a Horizontal axis part 1b, 1c Vertical axis part 2 of a stick 2 Spring clip 2a, 2b Leg part of a spring clip 3 Base frame 31a, 31b, 32a, 32b, 33a-33c
Cutting claw 34 Receiving base 4 Foam piece 5 Cushion pad 5a Rear pad part 5b Front pad part 6 Trim cover 6a Rear cover part 6b Front cover part 60 Opening parts 61a, 61b 68c, 68d J hook 7 Cover plate

Claims (5)

A stay having a vertical axis portion that is pulled out from a horizontal axis portion that is inserted inside the headrest body, a spring clip that fits on the horizontal axis portion of the stay so as to be slidable on the axis, and a horizontal axis portion of the stay A frame is formed from a base frame that is swingably held by a spring clip with the apex at the apex, and the upper pad portion of the vertical axis portion is taken in via the horizontal shaft portion of the stay and covers the front plate surface of the base frame. A cushion pad is integrally foamed and molded with foamed resin on the front pad. The front and rear pads are individually housed in the front and rear covers of the trim cover. In the swingable headrest of the front pillow part formed in a cross-sectional shape,
A back cover bag-shaped front cover part with an opening of a size that allows the cushion pad to be assembled inside from the rear pad part on the rear surface opposite to the front surface of the rear cover part, and a through hole through which the vertical axis part of the stay is inserted Is provided with a trim cover formed from a bag-like rear cover portion having an opening at the front cover portion as an opening, and the rear pad portion is formed by projecting the vertical axis portion of the stay from the through hole on the bottom surface to the outside. Is assembled to the interior of the rear cover, the front pad is assembled to the interior of the front cover to accommodate the cushion pad inside the trim cover, and the opening of the front cover is attached to the rear plate surface of the base frame. A headrest capable of swinging a front pillow part, wherein the headrest body is closed by a cover plate to be fixed, and the headrest body is formed in a substantially inverted V-shaped cross-sectional shape.   A spring clip that fits the horizontal axis part of the stay in the U-shape, sandwiches a soft foam piece in the U-shape, places the base frame on one leg, and fastens it with the opposing legs and fastening bolts. And a cushion pad in which the front and rear pad portions are foam-molded integrally with the frame by foam resin through the horizontal shaft portion of the stay to which the spring clip is attached. Headrest.   An L-shaped cutting nail is provided on the rear plate surface of the base frame, a reinforcing cord is attached to the opening edge, and the opening mouth is secured to the bending nail of the base frame with the reinforcing cord. The headrest according to claim 1.   A cradle for securing the cover plate with the fitting clip is provided on the rear plate surface of the base frame, a suspension ring is provided between the upper corner edges of the opening, and the base frame is received by the suspension ring on the upper edge of the opening. The headrest according to claim 3, wherein the headrest is hung on a base. A hanging band extending inwardly from the upper left and right edges of the opening is provided, and a J-shaped hook is attached to each end of the hanging band, and the hooks are fitted to each other so that the upper and left sides of the opening are suspended. The headrest according to claim 3 or 4, wherein the headrest is fixed by tension.

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