JP2002059434A - Headrest, method of manufacturing the same and mold used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mold the headrest and shoulder pad of a car seat in common. SOLUTION: The halved bodies (11a, 12a and 13a) and (11b, 12b and 13b) of the headrest (11) and the shoulder pads (12 and 13) are made same in shape and notches (43a and 46a) and (43b and 46b) for permitting a shoulder pipe lower (5) to pass are provided to the halved bodies (12a and 13a) and (12b and 13b) becoming the shoulder pads (12 and 13).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headrest for a seat and a rest serving as a shoulder pad, a method for manufacturing the same, and a mold used for the manufacturing.

[0002]

2. Description of the Related Art As a seat of an automobile or the like, a seat as shown in FIG. 19 is known. This attaches the headrest 102 to the upper part of the seat frame 101,
A shoulder pipe 104 having a shoulder lower pipe 103 is attached to each of the left and right sides of the seat frame 101, and shoulder pads 105 and 106 are attached to the left and right shoulder pipes 104 and the shoulder lower pipe 103.

[0003]

In the seat of the type described above, the headrest 102 and the left and right shoulder pads 105 and 106 are all different in shape. Therefore, a mold for molding each of them is required, and the production cost of the sheet is increased, and labor and cost are also required in terms of storage and maintenance of the mold. In addition, since the headrest 102 and the shoulder pads 105 and 106 have completely different shapes, the mounting structure is different, and there is a limit in improving the mounting workability.

[0004] In view of the above-mentioned technical situation, the present invention aims to use a common headrest and shoulder pad,
The purpose is to reduce the cost by sharing the mold and to improve the mounting workability.

[0005]

According to the method of manufacturing a rest according to the present invention, when forming the front-side rest half-split member, when the front-side rest half-split member is attached to a frame member having an auxiliary member, the front-side rest half-split member is provided. A notch for passing the auxiliary member through the rest half member is formed, and when the front rest half member is attached to a frame member having no auxiliary member, the notch is formed in the front rest half member. When forming the backrest half member to be combined with the frontrest half member without attaching the backrest half member to a frame member having an auxiliary member, the backrest half member may be attached to the backrest half member. When a notch for passing the member is formed and the backrest half member is attached to a frame member having no auxiliary member, the notch is formed in the backrest half member. It does not form, and wherein the. In the manufacturing method of the rest according to the present invention, the notch is formed depending on whether the frame member has the auxiliary member, and thus the basic configuration may be the same.

A method of manufacturing a rest according to the present invention is a method for manufacturing a headrest or a shoulder pad, wherein when the front-side rest half member on which the pad is provided is molded, the front-side rest half member is shouldered. When the front rest half member of the pad is used, a cutout for passing an auxiliary member extending from the frame member of the seat is formed in the front rest half member, and the front rest half member is connected to the front rest half of the headrest. When the split member is used, the notch is not formed in the front-side rest half member, and when forming the back-side rest half member to be combined with the front-side rest half member, the back-side rest half member is replaced with a shoulder pad. Notch for passing the auxiliary member extending from the frame member of the seat through the backrest half member Formed, the back rest half member when the back rest half member of the headrest is characterized in that it does not form the notch on the back rest half member. Notches are formed only when shoulder pads are used. The notches are provided symmetrically at different positions by left and right shoulder pads.

[0007] A mold according to the present invention is a mold for manufacturing a rest composed of two rest half-split members, and is provided at a position corresponding to a portion of the rest half-split member through which an auxiliary member of a frame member passes. A notch forming nest having a convex portion forming a notch for passing the auxiliary member and a nest having no convex portion are interchangeably provided. Depending on whether it is used as a headrest or a shoulder pad, a nest without projections and a nest for notch forming with projections are used interchangeably. One type of mold can be used for both headrest and shoulder pad production.

[0008]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a headrest to which a rest according to one embodiment is applied and a seat in which a shoulder pad is assembled, and FIG. 2 is a partial cross-sectional view of the headrest as viewed in the direction of arrows II-II in FIG. FIG. 3 shows the shoulder pad of FIG.
It is the figure which made the partial cross section seen from the arrow I direction. FIG.
(A), (b) and (c) show schematic perspective external views of a headrest and left and right shoulder pads.

A horizontal frame 2 is mounted on an upper portion of a U-shaped seat frame 1 formed by pipes, and a U-shaped head pipe 3 for mounting a headrest is mounted thereon. Parts 1a, 1
B has a U-shaped shoulder pipe 4 for mounting a shoulder pad. A shoulder lower pipe 5 is attached to a lower part of the shoulder pipe 4 as an auxiliary member so as to extend downward. The headrest 3 is attached to the head pipe 3 of the seat frame 1 configured as described above, and the shoulder pads 12 and 1 are attached to the left and right shoulder pipes 4 and the lower pipe 5.
3 is attached.

As shown in FIG. 4A, the headrest 11 is a front-side head half body 1 as a front-side rest half member.
1a and a back half head body 11b as a back half rest member. These half bodies 11a, 1
1b is made by molding a plastic such as polypropylene with a mold. Front side head half body 11a
5A has a substantially trapezoidal shape with a rounded shape as viewed from a plane as shown in FIG. 5A, and the surface 14 thereof is, as shown in FIG. The slope is reduced toward the opposite curved surface 16.

An annular groove 17 having substantially the same shape as that of the outer shape is formed on the surface 14 of the front head half body 11a, and an edge 18a of a pad 18 is inserted and held in the groove 17. The pad 18 is formed by covering a cushion 19 formed of urethane foam or the like with a skin material 20 such as leather or vinyl. The pad 18 is formed integrally so that the edge 18a is held in the groove 17 when the front side head half body 11a is molded.

A semi-cylindrical pipe holding portion 21a through which the head pipe 3 passes is formed at both ends of the surface 15 of the front side head half body 11a. As shown in FIG. 5A, FIG. 5B, and FIG. 6 which is a cross-sectional view taken along the line VI-VI in FIG. 5A, a snap is inserted through the inside of each pipe grip 21 a on the surface 15. Snap holes 22 and engaging portions 23 for engaging the snaps are formed.

The inner surface 24 of the front head half body 11a
At the position near the curved surface 16 side, two columnar screw tightening portions 25 are protruded. The screw tightening portion 25 is located on the rear half head body 1 of the front half head body 11a.
1b, and a tapered hole 27 for screwing a tightening screw is formed in the center of the surface 26a. A rib 2 is provided around the screw fastening portion 25.
8 are erected and reinforced.

The shape of the back head half body 11b to be combined with the front head half body 11a as viewed from the plane is
As shown in FIG. 7A, it is the same as the front-side head half body 11a, and is a cross section taken along the line VII-VII of FIG. 7A (partly a cross section taken along the line CC in FIG. 7A). As shown in FIG. 7B, the surface 31 has a surface 32 corresponding to a substantially trapezoidal bottom surface.
From the side to the curved surface 33 on the opposite side, a very gentle slope is provided (based on the mating surface 26b that is mated with the mating surface 26a of the front side head half body 11a).

A semi-cylindrical pipe grip 21b for passing the headrest pipe 3 is formed at both ends of the surface 32 of the rear half head body 11b. These pipe gripping portions 21b are connected to the front side head half body 11a.
A tubular shape is formed by combining with the pipe holding portion 21a on the side. Face 3
2, a front half of the front side head is located at a position inside each pipe gripping portion 20b as shown in FIG. 8 which is a cross section taken along the line VIII-VIII in FIGS. 7 (a) and 7 (a). A snap 34 is provided to pass through the snap hole 22 on the body 11a side.

Inner side surface 35 of back half head half body 11b
At the position near the curved surface 33 side and facing the screw tightening portion 25 when the back half head body 11b is aligned with the front half head body 11a, two screws formed in a concave shape An attachment portion 36 is formed. The screw mounting portion 36 has a screw hole 37 for passing a tightening screw.

As shown in FIG. 4 (b), the right shoulder pad 12 includes a front shoulder half body 12a as a front rest half member and a back shoulder half body 12b as a back rest half member. Become. These shoulder half bodies 12a and 12b have the same shape as the front head half body 11a and the rear head half body 11b of the headrest 11, as shown in FIGS.
The shoulder pad 12
Semi-circular notches 43a, 43 for passing the shoulder lower pipe 5 through one side surface (the lower surface when the shoulder pad 12 is assembled to the seat) 41, 42
b is formed. The notches 43a and 43b are combined to form a circle.

As shown in FIG. 4 (c), the left shoulder pad 13 is composed of a front shoulder half body 13a as a front rest half member and a back shoulder half body 13b as a back rest half member. Become. These shoulder half bodies 13a, 13b are shown in FIGS.
As shown in the figure, the headrest 11 has the same shape and structure as the front head half body 11a and the back head half body 11b, and further has one side surface of the shoulder pad 13 (the shoulder pad 13 is attached to the seat). A semicircular notch 46a through which the shoulder lower pipe 5 passes is inserted into the lower surfaces 44, 45 when assembled.
46b are formed. The notches 46a and 46b combine to form a circle. The notches 46a and 46b are notches 43a and 43b in the right shoulder pad 12.
And symmetrically with respect to the center of the shoulder pad 13.

The front half head body 11a and the rear half head body 11b of the headrest 11 are attached with the pipe 3 of the seat frame 1 interposed therebetween, as shown in FIG. At this time, the pipe holding portions 21a and 21b of the front head half body 11a and the rear head half body 11b are aligned, and the screw tightening portion 25 and the screw mounting portion 36
Is a stay (frame member) 3 integrated with the head pipe 3
a. The snap 34 of the back side head half body 11b is used as the snap hole 22 of the front side head half body 11a.
The head half body 11a and the rear head half body 11a
The surfaces 15 and 31 of b are fastened.

A tightening screw 47 is inserted into the screw hole 37 of the screw mounting portion 36 and is screwed into the taper hole 27 of the screw tightening portion 25 so that the front head half body 11a and the rear head half body 11b are integrated. To the stay 3a of the pipe 3. In this manner, by combining the two head half bodies 11a and 11b and tightening the tightening screw 47, the formation of the headrest 11 and the assembly on the seat frame 1 side can be performed simultaneously.

The front shoulder half body 12a and the back shoulder half body 12b of the right shoulder pad 12
As shown in FIG. 3, is mounted across the shoulder pipe 4 and the shoulder lower pipe 5 of the seat frame 1. At this time, the pipe gripping portions 21a of the front shoulder half body 12a and the back shoulder half body 12b.
And 21b are joined together with the pipe 5 interposed therebetween, and the screw fastening portion 25 and the screw attaching portion 36 sandwich the stay (frame member) 4a integral with the shoulder pipe 4. Also,
The notches 43a and 43b are combined to hold the shoulder lower pipe 5. The snap 34 of the back half shoulder body 12b is inserted into the snap hole 22 of the front half shoulder body 12a and is engaged with the engaging portion 23, so that the front half shoulder body 12a and the back half shoulder body 12b are separated. The surfaces 15, 31 are fastened.

A tightening screw 47 is inserted into the screw hole 37 of the screw mounting portion 36 and screwed into the tapered hole 27 of the screw tightening portion 25, whereby the front shoulder half body 12a and the back shoulder half body 12b are integrated. To the stay 4a of the shoulder pipe 4.
As described above, by combining the two head half bodies 12a and 12b and tightening the tightening screw 47, the formation of the right shoulder pad 12 and the seat frame 1 thereof are performed.
Can be mounted on the side at the same time.

The left shoulder pad 13 is assembled in the same manner as the right shoulder pad 12. In the left shoulder pad 13, when the front shoulder half body 13 a and the back shoulder half body 13 b are assembled to the shoulder pipe 4 and the shoulder pipe lower 5, the notches 46 a and 46 b are combined to hold the shoulder lower pipe 5. I do.

Next, a method for manufacturing the half body of the headrest 11, the left and right shoulder pads 12, 13 will be described. These half bodies are formed by injecting and filling a resin into a space (cavity) formed when the upper and lower molds are combined.

FIG. 13 shows a lower mold 51 used for molding all the front half bodies. The lower mold 51 includes a base portion 52 and a mold portion 53 formed on the base portion 52 and having a shape corresponding to the front half body. A groove 54 for forming the groove 17 on the surface 14 of each front half body is formed in the mold portion 53. A semi-cylindrical portion 56a for forming the pipe holding portion 21a is formed on both ends of a surface 55 corresponding to the bottom of the substantially trapezoidal mold portion 53. In addition,
In FIG. 13, a mold portion for forming portions corresponding to the screw fastening portion 25, the engagement portion 23, and the like is omitted.

A notch 57 is formed at a position corresponding to a position where the notches 43a and 46a of the shoulder pads 12 and 13 are formed on the side surface 53a of the mold portion 53, and a nest 58 is removably fitted therein. ing.
As shown in FIG. 14, the nest 58 includes a raised mold portion 58a and a mounting portion 5 extending horizontally from the lower end thereof.
8b, and the mounting portion 58b has a recess 58
c is provided, and a bolt hole 58d is provided therethrough to penetrate the back surface. A female screw 52a is formed in the base 52 of the lower mold 51 so as to coincide with the bolt hole 58d. The nest 58 is fixed to the base 52 by inserting and screwing a bolt 59 into the female screw 52a from a bolt hole 58d in a recess 58c of the nest 58. In a state where the nest 58 is fitted and attached to the notch 43, the surface 58e of the mold portion 58a becomes a part of the side surface 53a of the mold portion 53, and forms a continuous surface without a step. The nests 58 are provided at symmetrical positions on both side surfaces of the mold 53.

The insert 58 can be replaced with a cut insert insert 61. Notch forming insert 6
As shown in FIG. 15, the raised mold part 61a
And a mounting portion 61b extending horizontally from the lower end thereof, and a surface 61e of the rising portion 61a includes:
Right and left shoulder pad half bodies 12a, 13
A substantially semicircular convex portion 61f for forming the notch 43a or 46a of a is formed. The mounting portion 61b of the notch forming nest 61 is provided with a concave portion 61c, in which a bolt hole 61d is provided penetrating the back surface. The notch forming nest 61 is fixed to the base 52 by inserting and screwing a bolt 59 into the female screw 52a from the bolt hole 61d in the concave portion 61c.
When the notch forming nest 61 is fitted and attached to the notch 57, the convex portion 61 f of the mold portion 61 a projects from the side surface 53 a of the mold portion 53. The notch forming nest 61 is selectively replaced on the left and right by the left and right shoulder pads 12 and 13.

The upper mold 62 corresponding to the lower mold 51 is
A mold 63 is formed in a concave shape so as to form a space 64 corresponding to the front head half body 11a or the left and right shoulder half bodies 12a and 13a with the lower mold 51.

In order to form the front head half body 11a, as shown in FIGS. 13 and 14, inserts 58 are fitted and fixed in notches 57 on both left and right sides of the lower mold 51, and the lower mold 51 is fixed. And the upper mold 62. By filling and injecting resin into a space 64 formed by the lower mold 51 and the upper mold 62, the front-side head half body 11a shown in FIGS. 5A and 5B is formed. In forming the front-side head half body 11a, the edge 18a of the pad 18 is inserted into the groove 17 to be formed.
Are also held by insert molding.

To form the front shoulder half body 12a of the right shoulder pad 12 as shown in FIG. 15, a lower die 51 is replaced with a cutout 57 on the left side in FIG. The notch 61 for notch forming is fitted and fixed, and the nest 58 is fixed to the notch 57 on the right side. By combining the lower mold 51 and the upper mold 62 and injecting and filling the space 64 with a resin,
As shown in FIGS. 9A and 9B, a front shoulder half body 12a having a notch 43a on a lower surface 41 in a mounted state is formed. When the front shoulder half body 12a is formed, the edge 18a of the pad 18 is also inserted and held in the groove 17 to be formed.

To form the front shoulder half body 13a of the left shoulder pad 13, the notch forming nest 61 is fitted and fixed in the right notch 57 in the state of FIG. A nest 58 is fitted into and fixed to 57. By combining the lower mold 51 and the upper mold 62 and injecting and filling the space 64 with a resin, as shown in FIG. 11A and FIG. The front shoulder half body 13a having the notch 46a is formed. In addition, also at the time of molding the front shoulder half body 13a, the edge 18a of the pad 18 is inserted and held together with the groove 17 to be molded.

FIG. 16 shows a lower die 71 of a die applied to molding all the rear half bodies. The lower mold 71 includes a base portion 72 and a mold portion 73 formed on the base portion 72 and having a shape corresponding to the rear half body. A semi-cylindrical portion 86b for forming the pipe holding portion 21b is formed on a surface 74 corresponding to the substantially trapezoidal bottom of the mold portion 73. In FIG. 16, the screw mounting 36 and the snap 34
The illustration of a mold part for forming a part corresponding to the above is omitted.

A notch 75 is formed at a position corresponding to a position where the notches 43b and 46b of the shoulder pads 12 and 13 are formed on the side surface 73a of the mold portion 73, and a nest 76 is detachably fitted therein. ing.
As shown in FIG. 17, the nest 76 includes a raised mold portion 76a and a mounting portion 7 extending horizontally from the lower end thereof.
6b, and the mounting portion 76b has a concave portion 76b.
c is provided therein, and a bolt hole 76d is provided through the back surface. The base portion 72 is formed with a female screw 72a corresponding to the bolt hole 76d. A bolt 59 is inserted into the female screw 72a from the bolt hole 76d in the concave portion 76c, and screwed into the female screw 72a, thereby forming a nest 7
6 is fixed to the base 72. With the nest 76 fitted and attached to the notch 75, the mold 76a
Is a part of the side surface 73a of the mold portion 73, and forms a continuous surface without a step. The nest 76 is a mold 73
Are provided at symmetrical positions on both side surfaces of.

The insert 76 is replaceable with a cut insert insert 77. Notch forming nest 7
7 includes a raised mold portion 77a and a mounting portion 77b extending horizontally from the lower end thereof. A notch 43b or a notch 43b of the right and left shoulder pad half body 12b, 13b is provided on the surface 77e of the rising portion 77a. A substantially semicircular projection 77f for forming 46b is formed. The mounting portion 77b of the notch forming nest 77 is provided with a concave portion 77c, in which a bolt hole 7c is provided.
7d is provided penetrating the back surface. A notch forming insert 77 is formed by inserting and screwing a bolt 59 into the female screw 72a from a bolt hole 77d in the recess 77c.
Is fixed to the base 52. Notch forming nest 7
In a state in which 7 is fitted and attached to notch 75, convex portion 77 f of mold portion 77 a projects from side surface 73 a of mold portion 73. The notch forming nest 77 is replaced when the back shoulder half body 12b or 13b of the right or left shoulder pad 12 or 13 is manufactured.

The upper die 81 corresponding to the lower die 71 is
A space 8 corresponding to the rear head half body 11b or the left and right shoulder half bodies 12b, 13b with the lower mold 71.
A mold portion 83 is formed in a concave shape so as to form the second mold 2.

As shown in FIG. 16, a lower mold 71 and an upper mold 81 in which nests 76 are fitted and fixed in cutouts 75 on both right and left sides are joined to form a space formed by the lower mold 71 and the upper mold 81. FIG. 7 (a)
The rear head half body 11b shown in FIG.

In order to form the back shoulder half body 12b of the right shoulder pad 12, the notch 75 for the notch 75 in the lower die 71 in place of the insert 76 in the state shown in FIG. 77 is fitted and fixed, and a nest 76 is fixed to the left cutout 75.
The lower mold 71 and the upper mold 81 are combined, and the space 82
As shown in FIGS. 10A and 10B, the back shoulder half body 12b having the notch 43b in the lower surface 42 in the attached state is formed as shown in FIGS.

To form the rear shoulder half body 13b of the left shoulder pad 13, the notch forming nest 77 is fitted and fixed in the left notch 75 as shown in FIG. 16 as shown in FIG. And the right cutout 7
A nest 76 is fitted and fixed to 5. By combining the lower mold 71 and the upper mold 81 and injecting and filling a resin into the space 83, as shown in FIGS. Notch at 45 46
b is formed.

Headrest 1 in the above embodiment
1. The shape of the shoulder pads 12, 13 is an example,
The present invention is applicable to the formation of rests of various shapes. Also, the shape of the notches 43a, 43b, 46a, 46b is not limited to a circle, and various shapes can be manufactured according to the shape of the frame. In that case, of course, the notch forming nest 6
This can be coped with by changing the shapes of the convex portions 61f and 77f of the first and 77. Furthermore, notches 43a, 43b, 46
The number of a and 46b is not limited to one, and can be appropriately formed as needed. The positions where the snap 34 and the engaging portion 23 are provided may be reversed. That is, the snap 34 may be provided on the front half body, and the engaging portion 23 may be provided on the rear half body.

In the above embodiment, the present invention is applied to a headrest and a shoulder pad of an automobile seat, but the present invention is not limited to an automobile and can be applied to rests and pads of other general seats.

[0041]

According to the method for manufacturing a rest according to the present invention, when forming the front-rest half-split member, the front-rest half-split member is attached to the frame member having the auxiliary member. To form a notch for passing the auxiliary member, and to attach the front-side rest half member to a frame member having no auxiliary member, the notch is not formed in the front-side rest half member. When molding the backrest half member to be combined with the frontrest half member, when the backrest half member is attached to a frame member having an auxiliary member, the auxiliary member is passed through the backrest half member. When the notch is formed and the backrest half member is attached to a frame member having no auxiliary member, the notch is not formed in the backrest half member. In other words, since the notch is formed in the front and back rest half-split members depending on whether the frame member has the auxiliary member, the basic configuration of the front and back rest half-split members may be the same, By simply changing some of the front and back half-split members, it can be applied to those with or without auxiliary members, reducing production costs, improving installation workability, and sharing molds. Can be achieved.

The method of manufacturing a rest according to the present invention is characterized in that, when the front rest half member on which the pad is provided is formed, the front rest half member is used as the front rest half member of the shoulder pad. A cutout for passing an auxiliary member extending from the frame member of the seat is formed in the half member, and when the front-rest half member is to be the front-rest half member of the headrest, the front-rest half member is When forming the backrest half member to be combined with the frontrest half member without forming the notch, when the backrest half member is used as the backrest half member of the shoulder pad, the backrest half member is used. A notch for passing an auxiliary member extending from the frame member of the seat is formed in the split member, and the backrest half member is a backrest half member of the headrest. In the case where the notch is not formed in the backrest half member, it can be applied to both the headrest and the shoulder pad only by changing and molding a part of the front and back rest half members, The production cost can be reduced and the mounting workability can be improved.
Further, the mold can be shared.

According to the mold according to the present invention, it is a mold for manufacturing a rest composed of two half-rest members, which corresponds to a portion of the half-rest member through which an auxiliary member of a frame member is passed. Since the notch forming nest having a convex portion that forms a notch for passing the auxiliary member and the nest that does not have the convex portion are provided so as to be interchangeable,
The mold can be shared, the cost of the mold can be reduced,
It is also advantageous in terms of mold maintenance and storage. Since the cost of the mold can be reduced, the manufacturing cost of the headrest, the shoulder pad, and the like can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view of a headrest and a seat to which a shoulder pad is attached according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view taken along line II-II in FIG.

FIG. 3 is a partial cross-sectional view taken along line III-III in FIG.

FIG. 4 is a schematic perspective view of a half body according to one embodiment of the present invention.

5A and 5B show a front-side head half body relating to a headrest, wherein FIG. 5A is a plan view and FIG. 5B is a cross-sectional view taken along the line VV.

6 is a sectional view taken along the line VI-VI in FIG.

7A and 7B show a rear head half body relating to a headrest, wherein FIG. 7A is a plan view and FIG.
FIG. 2A is a cross-sectional view partially showing a cross-section taken along the line CC in FIG.

8 is a sectional view taken along the line VIII-VIII in FIG. 7;

9A and 9B show a front shoulder half body relating to the right shoulder pad, wherein FIG. 9A is a plan view and FIG. 9B is a cross-sectional view taken along the line IX-IX.

10A and 10B show a rear shoulder half body relating to a right shoulder pad, wherein FIG. 10A is a plan view and FIG. 10B is a cross-sectional view taken along line XX of FIG. C-C in
It is sectional drawing which shows the arrow cross section.

11A and 11B show a front shoulder half body relating to the left shoulder pad, wherein FIG. 11A is a plan view and FIG. 11B is a cross-sectional view taken along the line XI-XI.

12A and 12B show a rear shoulder half body relating to a left shoulder pad, wherein FIG. 12A is a plan view and FIG. 12B is a sectional view taken along the line XII-XII, and a part of FIG. It is sectional drawing which shows the CC arrow cross section in a middle.

FIG. 13 is a perspective view of a lower mold for manufacturing a front half body.

FIG. 14 is a sectional view of a nest portion of a lower mold for manufacturing a front half body.

FIG. 15 is a cross-sectional view of a cut-out nest portion of a lower mold for manufacturing a front half body.

FIG. 16 is a perspective view of a lower mold for manufacturing a rear half body.

FIG. 17 is a sectional view of a nest portion of a lower mold for manufacturing a back half body.

FIG. 18 is a cross-sectional view of a notch forming nest portion of a lower mold for manufacturing a back half body.

FIG. 19 is a schematic view of a conventional automobile seat.

[Explanation of symbols]

1: Seat frame, 3: Head pipe, 4: Shoulder pipe, 5: Shoulder lower pipe, 1
1: Headrest, 11a: Front head half body, 11b: Back head half body, 12: Right shoulder pad, 12a: Front shoulder half body, 12b: Back shoulder half body, 13: Left shoulder pad, 13a: Front shoulder half body, 13b: Back shoulder half body, 19:
Cushion, 21a, 21b: pipe gripper, 2
2: Snap hole, 23: Engagement part, 25: Screw fastening part, 34: Snap, 36: Screw mounting part, 43a, 43b: Notch, 46a, 43b:
Notch, 47: fastening screw, 51: lower mold,
57: Notch, 58: Nest, 61: Nest for forming notch, 61f: Convex, 71: Lower mold, 75: Notch, 76: Nest, 77:
Notch forming nest, 77f: convex

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B084 DA04 DD02 3B087 DC10 4F202 AA11 AD03 AD13 AG03 AG25 AH26 CA01 CB01 CB11 CK43 CL02 CQ01 CQ05 4F204 AA11 AD03 AD13 AG03 AG25 AH26 EA03 EB01 EB11 EF05 EF27

Claims (3)

[Claims] 1. A method of manufacturing a rest, comprising: when molding a front-side rest half-split member, attaching the front-side rest half-split member to a frame member having an auxiliary member; When a cutout for passing an auxiliary member is formed and the front-rest half member is attached to a frame member having no auxiliary member, the cutout is not formed in the front-rest half member. When forming the backrest half member to be combined with the half member, when attaching the backrest half member to a frame member having an auxiliary member, a cut for passing the auxiliary member through the backrest half member. When forming a notch and attaching the backrest half member to a frame member having no auxiliary member, the notch is not formed in the backrest half member. Method for producing a rest, characterized. 2. A method for producing a headrest or a shoulder pad, wherein when forming a left-right symmetrical front rest half member provided with a pad, the front rest half member is used as a front rest of a shoulder pad. In the case of a half-split member, a cutout for passing an auxiliary member extending from the frame member of the seat is formed in the front-rest half-split member, and the front-rest half-split member is used as a front-rest half-split member of the headrest. in case of,
When not forming the notch in the front-side rest half member, and forming a bilaterally symmetrical back-side rest half member to be combined with the front-side rest half member, the back-side rest half member is connected to the backrest half of the shoulder pad. When the split member is used, a cutout for passing an auxiliary member extending from the frame member of the seat is formed in the backrest half member, and the backrest half member is used as the backrest half member of the headrest. , The notch is not formed in the backrest half-split member. 3. A mold for manufacturing a rest composed of two rest half members, wherein the left and right symmetrical rest half members have a portion corresponding to a portion through which an auxiliary member of a frame member passes. A mold for manufacturing a rest, characterized in that a notch for forming a notch having a convex portion for forming a notch for passing an auxiliary member and a nest having no convex portion are interchangeably provided.