JP6364631B2 - Side armrest and manufacturing method thereof - Google Patents

Description

  The present invention relates to a side armrest to be mounted on a vehicle seat and a method for manufacturing the sidearmrest.

  As shown in Patent Document 1, a side armrest mounted on an automobile seat includes a cover member obtained by stitching a skin material into a bag shape, and a foamed resin molded body that is foam-molded inside the cover member. As shown in FIG. 6, the cover member is composed of three skin materials, gusset members 101, 101 on both sides, and a main member 102 at the center. As an operation process for stitching these into a bag shape, the surfaces of the gusset members 101 and 101 are overlapped, and the outer edge portions thereof are stitched together as shown by the dotted line in FIG. The main member 102 is sewn from above to obtain the state shown in FIG. Next, after applying a film tape for preventing hardening due to impregnation of the foamable resin to the stitched portion, this skin material is turned over, and the foamable resin is injected into the inside thereof to perform foam molding, as shown in FIG. Side armrests are manufactured.

  However, in the prior art in which the cover member is constituted by three skin materials, displacement is likely to occur when the skin materials are stitched together, and as a result, the completed side armrests are twisted, resulting in defective products. There was a problem of high costs.

JP-A-8-207061

  An object of the present invention is to solve the above-described conventional problems, and to provide a side arm rest that can be produced at low cost and is less likely to be displaced at the time of sewing, and a method for producing the side arm rest.

  The present invention made to solve the above problems is a side armrest provided with a cover member formed by stitching a skin material into a bag shape, and a foamed resin molded body inside thereof, and is formed with a constant width. The cover member includes: a ceiling portion; a side portion extending downward from left and right end portions of the ceiling portion to reach the bottom portion; and a front and rear portion extending downward from the front and rear end portions of the ceiling portion to reach the bottom portion. Is a piece of skin provided with a ceiling piece constituting the ceiling part, a bottom piece constituting the bottom part, a side piece constituting the side part, and a bent piece folded to constitute the front and rear parts It is made of a material, and the outer edge portions of these pieces are stitched together to form a bag.

  According to a second aspect of the present invention, in the side armrest according to the first aspect, the outer edge portion of the side piece on which the bent piece is not formed, the outer edge portion of the ceiling piece, and the outer edge portion of the bottom piece. A first suture line is formed by stitching a portion with the outer edge portion of the bent piece, and the outer edge portion is connected to the first suture line, and either one of the outer edge portions above or below the side piece is stitched together. The second suture line is formed.

  According to a third aspect of the present invention, in the side armrest according to the second aspect, the second suture line is formed at a position below the foamed resin molded body.

Invention of Claim 4 is a manufacturing method of the side armrest of Claim 1, Comprising: The left and right side parts of the said skin material are reversed and arrange | positioned so that it may become a substantially U shape toward the downward direction from a ceiling part . On the above, the folded piece constituting one front and rear part is bent by approximately 90 ° with respect to the side piece, the outer edge part is stitched, and the outer edge parts of the side piece are joined along the longitudinal direction of the skin material. Stitching, folding the folded part constituting the other front and rear part about 90 ° with respect to the side piece, stitching the outer edge part, affixing the film tape to the stitched part, then flip the skin material again, The foaming is performed inside the skin material.

  According to a fifth aspect of the present invention, in the method for manufacturing a side armrest according to the fourth aspect, the outer edge portion of the bent piece constituting one of the front and rear portions is sewn in a hook shape from the upper side to the lower side, and the lower side of the side piece. The outer edge portions are stitched along the longitudinal direction of the skin material, and the outer edge portions of the bent portions constituting the other front and rear portions are stitched in a hook shape from below to above. .

  The side armrest according to the present invention includes a cover member, a ceiling piece that constitutes a ceiling part, a bottom piece that constitutes a bottom part, a side piece that constitutes a side part, and a bent piece that is bent and constitutes a front and rear part. It was made of a single skin material provided, and the outer edge portions of each piece were stitched together to form a bag. As a result, the cover member is formed by stitching a single skin material, and therefore, compared to a cover member composed of three skin materials as in the prior art, it is less likely to cause misalignment during stitching. Material costs can be reduced, resulting in lower costs. Further, the stitching distance and the film tape sticking distance for preventing hardening due to the impregnation of the foamable resin are significantly reduced as compared with the conventional case, so that the cost is reduced.

  According to the invention which concerns on Claim 2, the outer edge part of the side piece in the side in which the bending piece is not formed, the outer edge part of a ceiling piece, and three places, the outer edge part of a bottom piece, and the outer edge part of a bending piece A first suture line formed by stitching was formed, and a second suture line was formed which was connected to the first suture line and was stitched between the outer edges of either the upper side or the lower side of the side pieces. With such a configuration, the first suture line and the second suture line are formed in a single stroke, that is, the cover member can be formed in a bag shape by a single stitching operation. Improves. Furthermore, in the conventional cover member, when sewing the gusset member and the main member, it is necessary to sew the portions constituting the front and rear portions in a substantially U shape, and this stitching operation was performed by an unskilled person. In such a case, there is a problem in that sewing deviation occurs and the side arm rest after completion is twisted. Therefore, as in claim 2, in the front and rear parts of the skin material, the outer edge part of the side piece on the side where the bent piece is not formed, the outer edge part of the ceiling piece, and the outer edge part of the bottom piece, By stitching with the outer edge portion of the bent piece, the first stitch line is formed, so that it is not necessary to sew in a substantially U shape as in the prior art, and even an unskilled person can sew at the front and rear portions. Work can be easily performed.

  According to the invention which concerns on Claim 3, the 2nd suture line shall be formed in the downward position of a foaming resin molding. Even if a film tape is affixed, the sutured part may become a part where the user feels some pain when the user puts his elbow due to slight impregnation of the foamable resin. Therefore, as in the invention described in claim 3, since the second suture line is formed at the lower position of the foamed resin molded body, the second suture line is not formed at the upper position. This eliminates the need for sticking, and allows the user to use it comfortably without feeling pain when placing the elbow.

It is a perspective view which shows 1st Embodiment. It is an expanded view which shows the skin material in 1st Embodiment. It is a perspective view which shows 2nd Embodiment. It is an expanded view which shows the skin material in 2nd Embodiment. It is an expanded view which shows the skin material in other embodiment. It is an exploded view which shows the cover member of the conventional side armrest. It is a perspective view which shows the stitching | suture state of the cover member of the conventional side armrest. It is a perspective view which shows the conventional side armrest.

  Preferred embodiments of the present invention are shown below. Note that front and rear, top and bottom, and left and right in this specification refer to the directions shown in FIG. As shown in FIG. 1, the side armrest according to the first embodiment includes a cover member 1 formed by stitching a single skin material 2, and a foamed resin molded body (not shown) formed by foaming inside the cover member 1. And. The side armrest is attached to a vehicle seat through the fixing hole 11. As shown in FIG. 1, the side armrest has a ceiling portion 3 formed with a constant width, a bottom portion 4 formed with a constant width located below the ceiling portion 3, and vertically downward from left and right ends of the ceiling portion 3. A side portion 5 that extends and connects to the bottom portion 4 and a front and rear portion 6 that extends downward from the front and rear end portions of the ceiling portion 3 and connects to the bottom portion 4 are provided. Of the front and rear portions 6, the front front and rear portions 6 a are inclined in two steps from the front end portion of the ceiling surface 3, and the rear front and rear portions 6 b extend vertically downward from the rear end portion of the ceiling surface 3. It was. As shown in FIGS. 1 and 2, the skin material 2 constituting the cover member 1 includes a ceiling piece 7 constituting the ceiling part 3, a bottom piece 8 constituting the bottom part 4, and a side piece 9 constituting the side part 5. It was supposed to be equipped with. Further, a plurality of bent pieces 10 constituting the front and rear portions 6 are formed to protrude from the side piece 5 by being bent by approximately 90 ° with respect to the side piece 9. And the bag-like cover member 1 as shown in FIG. 1 is obtained by stitching the outer edge portions of these pieces together.

  As shown in FIG. 1, two bent pieces 10 a and 10 b are formed in the front front and rear portion 6 a, and particularly in the upper bent piece 10 a, the side on which the bent piece 10 a is not formed. The outer edge portion of the piece 9 and the outer edge portion of the ceiling piece 7 were sewn in a hook shape with the outer edge portion of the bent piece 10a. Further, in the lower bent piece 10b, the outer edge portion of the side piece 9 on the side where the bent piece 10b is not formed and the outer edge portion of the bottom piece 8 are sewn in a hook shape with the bent piece 10b. The first suture line 12 was formed. In the first embodiment, as described above, two bent pieces 10 are formed to be different in the vertical direction, and the protruding direction is also changed to the horizontal direction, so that the hook-shaped suture line is vertically inverted. A continuous first suture line 12 is formed. Further, in the rear front and rear part 6b, one bent piece 10 is formed, the outer edge part of the side piece 9 on the side where this bent piece 10 is not formed, the outer edge part of the ceiling piece 7, The first suture line 12 is formed by stitching the outer edge portion of the bottom piece 8 in three places with the outer edge portion of the bent piece 10.

  Further, a second suture line 13 is formed which is connected to the first suture line 12 formed on both the front and rear surfaces 6 and is formed by stitching the outer edge portions below the side pieces 9 together. The second suture line 13 was formed along the longitudinal direction of the skin material 2 at a position below the foamed resin molded body. A film tape for preventing hardening due to impregnation of the foamable resin is affixed inside the first suture line 12 and the second suture line 13.

  With the above configuration, the cover member 1 is formed into a bag shape by stitching a single skin material, so that the cover member 1 is compared with a cover member composed of three skin materials as in the prior art. Therefore, deviation at the time of stitching hardly occurs, material cost can be reduced, and the cost is reduced. In addition, the stitching distance and the film tape sticking distance are greatly reduced as compared with the prior art, which results in cost reduction. Further, since the first suture line 12 and the second suture line 13 are formed in a single stroke, that is, the cover member 1 can be formed in a bag shape by one sewing operation, and workability is improved. Further, in the conventional cover member, when the gusset members 101, 101 and the main member 102 are sewn in FIG. 7, it is necessary to sew the portions constituting the front and rear portions 103 in a substantially U shape. When an unskilled person performs the work, there is a problem that a sewing deviation occurs, and the side armrest after the completion is twisted. Then, by setting it as a structure as shown in 1st Embodiment, in the front-and-rear part 6, the outer edge part of the side piece 9 of the side in which the bending piece 10 is not formed, the outer edge part of the ceiling piece 7, Since the first suture line 12 is formed by stitching the outer edge portion of the bottom piece 8 with the outer edge portion of the bent piece 10, there is no need to sew in a substantially U shape as in the prior art. Even a skilled person can easily perform the suturing operation at the front and rear portions 6.

  In addition, even when a film tape is applied to the stitched portion, there may be a slight pain when the user puts his elbow on the completed side armrest due to slight impregnation of the foamable resin. Therefore, as in the first embodiment, the second suture line 13 is formed at the lower position of the foamed resin molded body along the longitudinal direction of the skin material 2, so that the second suture line 13 is formed at the upper position. Since it is not formed, it is not necessary to apply a film tape on the upper position, and the user can use it comfortably without feeling pain when placing the elbow.

  A method for manufacturing the side armrest configured as described above will be described below. First, the skin material 2 is turned over so as to be substantially U-shaped downward. Next, after bending the bent pieces 10a and 10b with respect to the side pieces 9 at the front front and rear parts 6a by approximately 90 °, the outer edges of the bent pieces 10a and 10b are hooked in a hook-like manner as described above. The first suture line 12 is formed by stitching from above to below so that the lines are vertically inverted and continuous. Further, from the end portion of the first suture line 12, the lower edge portions of the side pieces 9 are stitched together along the longitudinal direction of the skin material 2 to form a second suture line 13. Thereafter, the bent piece 10 is bent by approximately 90 ° with respect to the side piece 9 at the rear front and rear part 6b, and then bent from below to above from the end of the second suture line 13 formed as described above. The outer edge of the piece 10 is sewn in a hook shape to form a first suture line 12. And after attaching a film tape to these stitching | suture locations, the skin material 2 is turned over again, a foamable resin is inject | poured into the inside of the skin material 2, and a side armrest is manufactured.

  3 and 4 show a second embodiment. This embodiment is different from the first embodiment in that the second suture line 13 is positioned above the foamed resin molded body. In the second embodiment, as described above, when the user's elbow is placed at the place where the film tape is applied, the cover member 1 may be formed by one sheet of skin material 2 although a slight pain may be felt. In terms of the bag shape, it is difficult to cause a deviation at the time of sewing, and can be manufactured at a low cost. Further, similarly to the first embodiment, the front and rear portions 6 of the skin material 2 can be easily stitched as compared with the conventional case.

  Note that, as in the first and second embodiments, the front and rear portions 6 are not limited to those inclined in two steps from the ceiling portion 3 or vertically extended from the ceiling portion 3, for example, the ceiling portion The shape may be bent from 3 and reach the bottom 4. In such a case, as shown in the developed view of FIG. 5 as another embodiment, the bent piece 10 may be formed so that the front and rear portions 6 are smooth curved surfaces. In addition, it goes without saying that depending on the shape of the front and rear part 6, the first suture line may be formed in a continuous manner by vertically inverting the hook-shaped suture line in any of the front and rear sides.

  The side armrest of the first embodiment shown in FIG. 1 and the conventional side armrest shown in FIG. 8 were manufactured, and their stitching distances were compared. As a result, the stitching distance of the side armrest shown in FIG. 8 was about 130 cm, whereas the stitching distance of the side armrest of the first embodiment shown in FIG. 1 was about 60 cm. As a result, it is possible to reduce the stitching distance by 50% or more, and at the same time, it is possible to reduce the pasting distance of the film tape as well, so that a significant cost reduction can be realized.

DESCRIPTION OF SYMBOLS 1 Cover member 2 Skin material 3 Ceiling part 4 Bottom part 5 Side part 6 (6a, 6b) Front and rear part 7 Ceiling piece 8 Bottom piece 9 Side piece 10 (10a, 10b) Bending piece 11 Fixing hole 12 1st stitching line 13 2nd Suture line 101 gusset member 102 main part 103 front and rear part

Claims (5)

A cover member formed by sewing the skin material into a bag shape;
A side armrest provided with a foamed resin molded body inside thereof,
A ceiling formed with a certain width;
A side portion extending downward from left and right ends of the ceiling portion and reaching the bottom portion;
A front and rear portion extending downward from front and rear end portions of the ceiling portion and reaching the bottom portion;
The cover member includes a ceiling piece that constitutes the ceiling portion, a bottom piece that constitutes the bottom portion, a side piece that constitutes the side portion, and a bent piece that is bent to constitute the front and rear portions. A side armrest characterized in that it is made of a sheet of skin material, and the outer edges of these pieces are stitched together into a bag shape. A first part formed by stitching the outer edge portion of the side piece on which the bent piece is not formed, the outer edge portion of the ceiling piece, and the outer edge portion of the bottom piece with the outer edge portion of the bent piece. Form a suture,
2. The side armrest according to claim 1, wherein a second suture line is formed which is continuous with the first suture line and is formed by stitching one of the outer edge portions above or below the side piece.   The side armrest according to claim 2, wherein the second suture line is formed at a lower position of the foamed resin molded body. It is a manufacturing method of the side armrest according to claim 1,
After arranging the left and right side parts of the skin material upside down so as to be substantially U-shaped downward from the ceiling part ,
Folding pieces constituting one front and rear part are bent approximately 90 ° with respect to the side piece, and the outer edge part is sewn,
The outer edge portions of the side pieces are stitched along the longitudinal direction of the skin material,
The bent part constituting the other front and rear part is bent approximately 90 ° with respect to the side piece, and the outer edge part is sewn,
After affixing the film tape to the stitched area, turn the skin material over again,
A method for manufacturing a side armrest, wherein foam molding is performed inside the skin material. Sew the outer edge of the folded piece that constitutes one front and rear part in a hook shape from above to below,
The lower outer edges of the side pieces are stitched along the longitudinal direction of the skin material,
5. The method for manufacturing a side armrest according to claim 4, wherein the outer edge portion of the bent portion constituting the other front and rear portion is sewn in a hook shape from below to above.