JPS6244211A - Seat cover and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a seat cover suitable for automobile seats and a manufacturing method thereof.

<Prior Art> Examples of conventional seat covers include those shown in FIGS. 7 and 8.

What is shown in FIG. 7 is a separate type seat cover 1. As shown in FIG. This seat cover 1 is divided into a seat back covering part 4 that covers the seat back 3 of the seat 2, and a seat cushion covering part 6 that covers the seat cushion 5, both of which are made from a flat cylindrical polyethylene film using an inflation manufacturing method. This is what is being done.

The seat back covering part 4 has a welded part 8 cut and sealed along the shape of the seat back shoulder part 7 at the upper part and a covering opening 9 at the lower part, and is in the form of a bag of a suitable size to wrap around the seat back 3. . Further, a plurality of small holes 10 are continuously provided at the edge of the covering opening 9, and one rubber string 11 is threaded through the small holes 10 in a manner to be threaded therethrough. After covering the seat back 3 with the seat back covering part 4, the rubber strings 11 are pulled and tied, so that the seat back covering part 4 can be reliably covered and attached to the seat back 3.

One of the seat cushion covering parts 6 is also a bag-like member of a size that can wrap the entire seat cushion 5 in the same manner as before, and a bottom opening 12 which also serves as a covering opening is located at the bottom of the seat cushion.
is provided below.

This bottom opening 12 is also provided with a small hole 13 and a rubber string 14
is passed through, and once covered, the rubber string 14 is tied at the bottom position of the seat cushion to reduce the bottom opening 12 and securely cover and attach the seat cushion covering part 6 to the seat cushion 5. . In addition, 15 is a notch part, which connects the seat cushion covering part 6 and the mounting bracket 16.
It is provided to avoid interference with the

What is shown in FIG. 8 is an integrated seat cover 17 including a seat back covering part 18 and a seat cushion covering part 1.
9 are connected and integrated through a welded portion 20. The bottom of this integrated seat cushion covering part 19 is also provided with a bottom opening 23 that also serves as a covering opening through which a rubber cord 21 is passed through a small hole 22. After covering the entire body through this bottom opening 23, The rubber cord 21 is tied to securely cover and attach the cover.

<Problems with the Prior Art> However, in such conventional seat covers, the separate type seat cover 1 has small holes 1 in both the seat back covering part 4 and the seat cushion covering part 6.
The cover opening 9 and the bottom opening 1 require a large number of manufacturing steps, such as providing a 0.13 and passing a rubber cord 11.14.
2 must be provided, which complicates the entire manufacturing process, and since the seat is a separate type, the work of covering the seat 2 must be done separately for the seat bank covering portion 4 and the seat cushion 6, which is troublesome. It is.

In addition, although the integrated seat cover 17 solves the problems of the separate type described above, the seat back covering part 18 and the seat cushion covering part 19 are welded together at their joints, so the welding The part 20 appears on the surface part of the seat 2 where the load of the lower back of the seated person is most applied, and the seat cover 2 may be torn from this welded part 20 during long-term use.

The present invention has been made focusing on such conventional seat covers, and provides a seat cover that is integrated but does not have welded parts that are weak against loads on the surface of the seat where loads are easily applied, and its manufacture. The purpose is to provide a method.

Means for Solving the Problems> In order to achieve the above object, the seat cover according to the present invention uses a flat cylindrical cover body as a seat cover. It consists of a flat cylindrical cover body in which the front side and the back side are continuous, with a seat back covering part on one side and a seat cushion covering part on the other opening side, and the opening part is on the side of the seat back covering part. It is sealed in a shape that follows the shoulder in the width direction of the seat back, and on the side of the seat cushion covering part, there is a bottom opening that doubles as a covering opening and is formed by cutting out the center part of the seat cushion covering part. [First invention (invention set forth in claim 1)].

Furthermore, the present inventors have also developed a method for manufacturing a seat cover suitable for manufacturing the above-mentioned seat cover 〇, that is, a cylinder having a width and length approximately corresponding to the width and length of both the seat back and the seat cushion. The entire flat cylindrical cover body is made flat, one opening side of the flat cylindrical cover body is used as a seat back covering part, the other opening side is used as a seat cushion covering part, and the opening part on the seat back covering part side is cut. A flat cylindrical cover body in which the cut is symmetrical about the center line bisecting the flat cylindrical cover body in the longitudinal direction, and
The sheet is cut into a shape that corresponds to the shoulder shape in the width direction of the seat back when it is flattened again, so that the bisecting center line between the front surface and the back surface becomes the new side parts on both sides. One side of the cushion covering part is partially cut and removed, and then the entire flat cover body is re-flattened so that the center line bisecting the front and back parts becomes the new side parts on both sides. Then, the opening of the seat back covering is sealed, and the cut out portion of the seat cushion covering is used as a bottom opening that can be contracted and expanded and also serves as a covering opening. ].

<Function> In the seat cover of the first invention, one opening side of the flat cylindrical cover body in which the front surface part and the back surface part are continuous is used as the seat back covering part, and the other opening side is used as the seat cushion covering part, The opening on the side of the seat bank cover is sealed in a shape that follows the widthwise shoulder of the seat back, and the seat cushion cover has a bottom opening that also serves as the cover opening. There is no need to provide a load-resistant welded part or the like on the surface part of the seat after covering, and therefore the part of the seat cover corresponding to the joining part of the seat back and the seat cushion is not damaged by the load of the lumbar part of the seated person.

The method for manufacturing a seat cover according to the second invention includes the step of re-flattening the entire flat cylindrical cover body so that the center line bisecting the front surface part and the back surface part becomes the new side parts. It is easy to cut the opening of the bank covering part to follow the shape of the shoulder in the width direction of the seat back, and it is also easy to provide a bottom opening that also serves as the covering opening on the back side of the seat cushion covering part. This can be done very easily, accurately, and with a good appearance.

<Example> The details of this invention will be explained below based on the drawings.

In addition, parts common to the conventional model are given the same reference numerals.
Duplicate explanations will be omitted.

1 to 4 are views showing one embodiment of the present invention.

The seat cover 24 is made of a flat cylindrical polyester film 25 as a ``flat cylindrical cover body'' in which a ``front side'' and a ``back side'' are continuous. In order to make the other opening 28 side the seat cushion covering part 29, the entire length is approximately equal to the sum of the lengths of the seat back 3 and the seat cushion 5, and the width of the flat cylinder is the same as that of the seat back 3 and the seat cushion 5. It is said to be slightly wider than its width by its thickness.

The opening 26 on the side of the seat back covering portion 27 is an arc-shaped welded portion 30 that is cut into an arc shape along the shape of the shoulder portion 7 in the width direction of the seat back 30 and then welded. In addition, one side of the polyester film 25, which forms two sheets in a flat state, is a back side part 25a, and the other side is a front side part 25b, and the back side part 25a is a sheet that is left in an open state. The cushion covering portions of 27 examples are continuously cut into a rectangular shape from the opening 26.

An opening 28 continuous with this rectangular cutout 31
A bottom opening 32 which also serves as a covering opening is formed by
Further, a plurality of small holes 33 are continuously provided at the edge of the bottom opening 32. More specifically, the small holes 33 are provided symmetrically around the cutout 31 and along the edge of the opening 28. A rubber string 34 is sewn through the plurality of small holes 33, and by pulling and tying both ends of the rubber string 34, the entire bottom opening 32 can be reduced. It is expandable. Incidentally, small curved notches 35 are formed at the corners of the cutout portions 31 to prevent tearing, and the ends 36 on the side of the opening 28 are canted in an inclined shape.

The bottom opening 32 also allows the seat cover 24 to be connected to the seat 2.
It also serves as a covering opening when covering the seat back 3. After widening the bottom opening 32, it is placed over the shoulder 7 of the seat back 3, and then the bottom opening 32 is covered up to the seat cushion 5 side. After the entire seat cover 24 is covered, the bottom opening 32 is reduced at the bottom of the seat cushion 5, and the entire seat cover 24 is placed in a tensioned state to ensure that the seat cover 24 is covered and attached to the seat 2.

Next, a method of manufacturing this seat cover 24 will be explained.

First, the flat cylindrical polyester film 25 is flattened to obtain a front surface portion and a back surface portion. Then, the opening 26 on the side of the seat back covering 27 is bisected by a center line 3 whose cut shape is bisected in the longitudinal direction.
7 as the center, and so that the bisecting center line 37 between the front surface and the back surface becomes new side portions on both sides.
The seat back 30 is cut so that it has a shape corresponding to the shape of the shoulder portion 7 in the width direction when it is flattened again. Therefore, the cutting line 38 at this time is to halve the arc shape corresponding to the shape of the shoulder portion 7 in the width direction of the seat back 3, and then draw the half arc along the center line 37 that bisects the half arc toward opposite sides. It corresponds to the shape to which it is fitted.

Next, in order to form the cutout part 31 of the bottom opening 32, the seat cushion covering part 29 of one side part 39 of both side parts 39 and 40 of the polyester film 25 is partially cut and cut out along with the opening part 28. do. The resection shape at this time corresponds to the shape of the resection portion 31 cut in half, and curved notches 35 are provided at the corners of this resection portion, and the ends 36 of the 28 openings are cuffed in an inclined manner.
do.

Furthermore, half the number of small holes 33 that are actually provided are provided around the cutout 31 and around the edge of the opening 28.

The entire polyester film 25 thus cut and excised is then re-flattened so that the bisecting center lines 37 of the front surface portion and the back surface portion become new side portions. That is, the both side portions 39 and 40 are flattened again so as to meet inside the tube of the polyester film 25 (see FIG. 4). Then, the opening 26 of the reflattened polyester film 25 on the side of the seat back ff1 section 27 is located at the shoulder section 7 of the seat back 3 in the width direction.
The bottom opening 32, which also serves as a covering opening and has a small hole 33 consisting of an opening 2 and a cutout 31, is located at the center of the back surface of the seat cushion covering 29 examples. Next, the opening 26 of the seat back covering part 27 is welded and sealed to form a welded part 30, and the rubber string 34 is passed through the small hole 33 to obtain the desired seat cover 24. In addition, by re-flattening the entire structure so that the original bisecting center line 37 becomes new side parts on both sides, the cut openings 26 may be misaligned, and the distances between the small holes 33 may be uneven. Those openings 2 without
6 and the small hole 33 are accurately symmetrical, the post-cutting and cutting operations such as welding and sealing the opening 26 and threading the rubber string 34 through the small hole 33 are very easy. It's easy to use and the work results look very good.

FIGS. 5 and 6 are diagrams showing other embodiments of the present invention. Note that explanations that overlap with those of the previous embodiment will be omitted, and common parts will be denoted by the same reference numerals.

In the seat cover 41 in this embodiment, the opening 43 of the seat cushion covering part 42 also has a seat hack covering part 44.
Welded part 4 cut and welded and sealed in the same way as opening 45 in the example
It is 6. This welded portion 46 has a gentle arc shape that follows the shape of the front end of the seat cushion 5. Further, on the seat cushion covering portion 42 side, a rectangular cutout portion 48 is provided by cutting out the center portion of the back surface portion 47a of the polyester film 47, and a rectangular cutout portion 48 is provided from the four corners of this cutout portion 48 toward both side portions 49 and 50, respectively. A bottom opening 52 is provided, which includes four notches 51a to 51d, and two notches 51e and 51f, which are provided between the cutout portion 48 and the welded portion 46. Further, a plurality of small holes 53 are provided around the cutout portion 48 of the bottom opening 52, and a rubber string 54 is passed through the small holes 53. Therefore, the bottom opening 52 can be expanded by the notches 51a to 51f, and can also be contracted by tying the rubber string 54. The manufacturing method of this seat cover 41 is almost the same as that of the previous seat cover 24, and when cutting and cutting out the cutout part 48, only the shape corresponding to half of the cutout part 48 is cut out, and the rest is made by cutting the cuts 51a to 51a. 51
f and small holes 53 are provided at predetermined positions by half of the regular number,
The desired seat cover 41 can be obtained by flattening the entire polyester film 47 as in the previous embodiment.

In the above description, the flat cylindrical polyester film 25.47 was used as an example of the "flat cylindrical cover", but the present invention is not limited thereto, and other resin sheets, cloth, etc. may be used. In addition, in order to make the bottom opening 32.52 reducible, a small hole 33.53 is provided and a rubber string 34.54 is threaded through the small hole 33.53. The bottom opening 32.5 may be pre-sewn with 54 or a thin spring may be used.
Other structures that can reduce 2 may also be used.
As the seat cover and the method for manufacturing the same according to the present invention have the content as described above, ``Although it is an integrated seat cover, there is no welded part or part on the surface of the seat where the lumbar region of the seated person is most loaded. Since there is no need to provide a seam, the seat cover is less likely to tear even after long-term use and has the effect of making the whole seat stronger [first invention].

In addition, the center line of each bisector of the front surface and the back surface of the flat cylindrical cover body is newly created as both side parts (including a process of re-flattening by aligning the original two side parts within the cover body). By adopting a manufacturing method, it is possible to simplify the process of cutting the opening of the seat back covering part along the shape of the shoulder in the width direction of the seat back and providing the bottom opening. Since the result is accurately symmetrical, it is easier to perform sealing and other post-work, and the appearance is also improved [Second invention].

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing the covered state of a seat cover according to an embodiment of the present invention, Fig. 2 is an overall perspective view showing the seat cover before covering, and Fig. 3 is a flat tube showing the cut/removed portion. FIG. 4 is an overall perspective view of the flat cylindrical cover body in a re-flattened state; FIG. 5 is a perspective view of a seat cover corresponding to FIG. 2 showing another embodiment of the present invention. Fig. 6 is a plan view corresponding to Fig. 3 according to another embodiment, Fig. 7 is a perspective view of a seat and a seat cover showing a conventional example of the present invention, and Fig. 8 is a plan view corresponding to Fig. 3 according to another embodiment. FIG. 2 is a perspective view of a conventional seat cover. 1.17, 24.41 --- Seat cover 4.18.
27.44 - Sheet bank covering 6.19,2
9.42 - Seat cushion covering part 7 - Shoulder part 8.30 - Welded part (corresponding to shoulder part) 12.23.3
2.52 - Bottom opening 25.47 ... Polyester film [flat cylindrical cover body] 26.45 - Opening (seat back side) 28.4
3--1 Opening (seat cushion side) 39.49
-・Side part (right side) 40.50 -Side part (left side) 1st seat 5th 2nd register J sound P Bottom P opening Fig. 3 Shoulder 1 size lock Fig. 4 Fig. 6 Skin 4 Open mouth P threshold 0

Claims (2)

[Claims] (1) Consisting of a flat cylindrical cover body with a continuous front surface and a back surface, with one opening side being a seat back covering section and the other opening side being a seat cushion covering section, the seat back covering section On the side, the opening is sealed in a shape that follows the shoulder in the width direction of the seat back, and on the seat cushion covering side, a covering that can be contracted and expanded is formed by cutting out the center part on the back side. A seat cover characterized by having a bottom opening that also serves as an opening. (2) The entire cylindrical cover body with a width and length approximately corresponding to the width and length sizes of both the seat back and the seat cushion is flattened, and one opening side of this flat cylindrical cover body is attached to the seat back. The other opening side of the covering part is a seat cushion covering part, and the opening on the seat back covering part side is cut so that the cutting edges are symmetrical about the bisecting center line in the longitudinal direction of the flat cylindrical cover body. In addition, the flat cylindrical cover body has a shape that corresponds to the shoulder shape in the width direction of the seat back when the flat cylindrical cover body is re-flattened so that the bisecting center line between the front surface part and the back surface part becomes the new side parts on both sides. Then, partially cut and cut out one side of the seat cushion covering part, and then divide the entire flat cover body into two equal parts between the front surface and the back surface, so that the center line on both sides is new. The seat is flattened again, the opening of the seat back covering is sealed, and the cut out portion of the seat cushion covering is made into a bottom opening that doubles as a covering opening that can be contracted and expanded. How to manufacture the cover.