WO2011151879A1

WO2011151879A1 - Seat cover covering airbag-equipped automobile seat, and sewing method for said seat cover

Info

Publication number: WO2011151879A1
Application number: PCT/JP2010/059213
Authority: WO
Inventors: 安藤　宏
Original assignee: 株式会社トップセレクション
Priority date: 2010-05-31
Filing date: 2010-05-31
Publication date: 2011-12-08

Abstract

[PROBLEM] To more safely ensure the cushioning properties of a seat cover covering an airbag-equipped automobile seat and a manufacturing method for the same, when a front or side collision occurs to an automobile, or the automobile rolls, and an airbag provided inside the automobile seat inflates from the impact, perforations sewn along each outer edge section of the seat structure in the seat cover immediately split. [SOLUTION] In a seat cover (B) covering an automobile seat (A) provided with a vehicle-body (5) side inflatable airbag (6) to which gas is provided upon impact when a front or side collision occurs to an automobile, or the automobile rolls, perforations (13), which correspond to splitting positions for the airbag, are sewn in the outer edge section of each of a plurality of cover structure parts (11, 12) of a cover main body (10, 10') using a sewing machine, and are formed from thin upper thread (14) and bobbin thread (15) which can be cut and split upon impact when a front or side collision occurs to an automobile, or the automobile rolls.

Description

Seat cover to be attached to an automobile seat seat in which an air bag operates, and sewing method of the seat cover

The present invention relates to a seat cover to be attached to an automobile seat seat in which an air bag is operated and a method for sewing the seat cover, and to suit the interior of the automobile, for example, the appearance of the seat cover to be attached to a front seat. In response to seasonal changes, it can be used exhilaratingly, and in the event of a side collision or rollover of an automobile, the air bag provided in the seat seat is inflated to open the cover. Safety is ensured by the cushioning property of the airbag, and it is optimally used for a front seat of a small automobile having a narrow space inside the vehicle.

2. Description of the Related Art Conventionally, an air bag is provided with gas supplied by an inflator to an airbag provided in a vehicle body side seat in the front seat of a driver or the like, for example, a back seat (backrest) due to an impact caused by a side collision of an automobile. There has been an airbag device that is designed to increase the safety of a crew member such as a driver by inflating (see Patent Document 1).

Japanese Patent Laid-Open No. 2008-24286

However, the above-described conventional airbag device described in Patent Document 1 is an airbag installed on the vehicle body side, for example, in a back seat (back) of a front seat of a driver or the like due to an impact on a front surface or a side surface of an automobile. However, it is designed so that the passenger's safety is ensured by the cushioning of the airbag by tearing out the front cover of the front seat and the seat cushion. For example, if you wear a seat cover with a selected material, color, or pattern, for a refreshing use in response to seasonal changes, the seat that is attached to the front seat The air bag must be inflated to prevent the air bag with the cover from being built in the back seat (backrest) and preventing the air bag from bulging. When it is essential to say, of a lack of safety not inflated, there has been a problem.

Therefore, the present invention solves the above-mentioned conventional drawbacks, and the material, color, design, etc. are designed on the front seat seat in accordance with the user's preference and for refreshing use in response to seasonal changes. The seat cover selected is attached to prevent the front seat itself from getting dirty, and when the front or side impacts on the car or the car rolls over, the impact is applied, for example, in the back seat (back) As a result, the seat cover can be easily perforated to sew the outer edges (hems) of its component pieces, and the front cover of the front seat can be inflated. Cleavage, air cushion cushioning, passenger safety, easy construction and easy removal from the front seat , And to provide a seat cover and sewing method that seat covering deposited on the seat for a motor vehicle air bag is activated.

The invention described in claim 1 of the present invention
Gas is received by the inflator in response to an impact at the front or side of the automobile or at the time of rollover in the front seat comprising the seat, the back seat disposed on the back of the seat, and the seat. A seat cover that is attached to a seat for an automobile in which an air bag that is supplied and can be inflated operates.
A large one of a plurality of cover constituent pieces of the cover body is formed by a large-diameter upper thread and lower thread having resistance to strength during normal use in which a driver or a passenger sits on the seating seat and travels an automobile. A sewn part that sews the outer edges of the cover component pieces of the part; and
A pair of cover constituent pieces of the seat cover sewn through a perforation corresponding to a tearing portion of the airbag with a sewing machine with an upper thread and a lower thread having a diameter smaller than that of the upper thread and the lower thread. And a sewn portion that sews the outer edge portion,
It is characterized by that.

The invention according to claim 2 of the present invention is the perforation according to claim 1, wherein the perforation can be cleaved by operating the airbag provided in at least the back seat portion of the front seat. The cleaving portion is provided at a sewing portion between the outer edge portions of the cover constituent piece having a narrow pressure receiving area portion of the seat cover.

According to a third aspect of the present invention, in the first or second aspect, the upper thread and the lower thread of the perforation for sewing together a part of the cover constituent pieces of the seat cover are polyester. It is composed of fiber yarns, and the yarn diameter is 40 to 90.

Further, the invention according to claim 4 of the present invention is that, in any one of claims 1-3, most of the plurality of cover constituent pieces of the cover main body other than the cleavage portion of the airbag. Large diameter upper and lower threads having strength resistance, which are sewn on the outer edge of each cover component piece with a sewing machine, are made of polyester fiber yarn, and the yarn diameter is 5 to 10th. And

The invention according to claim 5 of the present invention is the structure according to any one of claims 1-4, wherein the perforation is constituted by a pitch at which the number of stitches of the sewing needle is six per length of 3 cm. It is characterized by being.

According to a sixth aspect of the present invention, there is provided a front seat or side impact of an automobile in a front seat comprising a seating seat portion, a back seat portion disposed on a back portion of the seating seat portion. A method of sewing a seat cover to be attached to a seat seat for an automobile in which an air bag that can be inflated by being supplied with gas by an inflator upon receiving an impact at the time of rollover,
During normal use in which a driver or a passenger sits on the seating seat part of the outer edge part of the majority of the cover constituent pieces of the cover main body on the seating seat portion and the vehicle travels, the strength resistance is increased. Sewing a sewing machine with a large diameter upper thread and lower thread to form a sewn portion;
A part of the outer edge part of the cover constituent pieces can be sewn with the upper thread and the lower thread having a diameter smaller than that of the upper thread and the lower thread so as to be cleavable at the time of impact on the front or side of the automobile or at the time of rollover. And sewing the perforated portion corresponding to the cleavage portion of the airbag,
It is characterized by that.

According to a seventh aspect of the present invention, the perforation according to the sixth aspect of the present invention is the perforation that is capable of being cleaved when the airbag provided in at least the back seat portion of the front seat is operated. The cleaving portion is provided at a sewing portion between the outer edge portions of the cover constituent piece having a narrow pressure receiving area portion of the seat cover.

According to the first aspect of the present invention, the front or side impact of the automobile is placed in the front seat that includes the seating seat, the back seat disposed on the back of the seating seat, and the seat. A seat cover that is attached to a seat for an automobile in which an air bag that can be inflated by being supplied with gas by an inflator in response to an impact at the time of rollover or on the driver's seat During normal use when a person sits down and runs an automobile, the outer edge portions of the cover component pieces of the majority of the cover component pieces of the plurality of cover component pieces of the cover body due to the large-diameter upper thread and lower thread having strength resistance And a seat cover sewn through a perforation corresponding to a tearing portion of the airbag with a sewing machine having an upper thread and a lower thread having a diameter smaller than that of the upper thread and the lower thread. Part of Because it is composed of a sewing part that sews the outer edge part of the cover component pieces, the material that can be used refreshingly according to your preference on the seat seat and in response to seasonal changes, When a seat cover with a selected color and design is further attached, the seat can be prevented from being soiled and the interior of the vehicle can be designed to suit the user's preference.

Thus, when the driver or passenger is seated through the seat cover on the front seat when the vehicle is running, the seat cover is a part of the outer edge (hem) of the cover components. The perforations that are sewn into the sewn portion can withstand the load of the driver or passenger, and the perforations can be used without being cleaved.

When the front or side impact on the vehicle or the vehicle rolls over, for example, when the airbag built in the back seat (back) ruptures and swells the cover of the seat seat, The seat cover has several perforated pieces of outer edge (hem) that are sewn together to break through the perforation that forms the sewn part from the inside, making it easy and reliable to tear the airbag. Cushioning performance is demonstrated, and crew safety can be ensured.

In addition, as described above, the seat cover has a perforation formed by a sewing machine that is sewn corresponding to the cleavage position of the airbag with a part of the outer edge of the cover body part of the cover body as a sewing part. However, the outer edge of most of the cover component pieces is sewn as a sewn portion. The upper and lower threads have a smaller diameter than the thread and lower thread, but not only the seat cover itself, but also the seam part of the outer edge of the cover component pieces corresponding to the opening of the airbag. Since the perforation itself sewn as a structure is also robust, the seat cover becomes dirty and needs to be cleaned or washed, or when the seat cover is repaired, the seat cover can be easily attached and detached. line It is possible.

According to a second aspect of the present invention, the sewing machine according to the first aspect, wherein the sewing machine is capable of being cleaved when the airbag provided in at least a back seat portion of the front seat is operated. Since the opening portion of the eye is provided at a sewing portion between the outer edge portions of the cover constituting piece having a narrow pressure-receiving area portion of the seat cover, the driver or passenger can drive the front seat In the normal use of sitting through a seat cover that covers the seat, the seat cover is sewn with the outer edges (hems) of some of the cover component pieces having a narrow pressure-receiving area part as the sewing parts. The perforations that are present can withstand the load of the driver or passenger, and the perforations can be used in a robust structure without being cleaved.

When a front or side impact is applied to the vehicle, or when the vehicle rolls over, for example, an airbag built in a back seat (back) ruptures the front cover of the seat seat and the seat. When the seat cover bulges into the back surface of the cover, the seat cover immediately has a total height of 1 near the upper end portion of the front side end portion in a cover component piece having a narrow pressure receiving area portion of the seat cover, for example, in a side view. Near the upper end of the small arc and the front side end bulged to draw an arc from the position of the height of 9/10 to the upper end, the overall height is 9/10 to 1 It has a large circular arc part bulged so as to draw a large arc from the position of the height to the lower end part, is narrowed upward, and is a vertically long side part constituting piece with a narrow pressure receiving area part For a certain amount When the gas is supplied from the inflator into the airbag, the airbag is inflated from the inside to the outside, and the strong pressure is efficiently and concentrated on the side part constituting piece. The perforation that is sewn with the outer edge part of the outer peripheral part of the vehicle body side as one of the peripheral part as a sewing part is easily and surely broken through the inside, and the cushioning property by the air bag is exhibited, and the boarding The safety of employees is ensured.

According to a third aspect of the present invention, in the first or second aspect, the upper thread and the lower thread of the perforation for sewing together a part of the cover constituent pieces of the seat cover. Since the yarn diameter is 40 to 90, the yarn diameter is 40 to 90, so that a driver or a passenger sits on the front seat through a seat cover on the front seat. A seat cover having a perforation that is sewn with an outer edge (hem) of some cover components having a narrow pressure receiving area portion among several cover components of the cover body as a sewing portion. Even if a load greater than the weight of the driver or the passenger of the passenger is applied, the load of the driver or the passenger can be withstood and the perforation can be used without being inadvertently cleaved.

According to the fourth aspect of the present invention, in any one of the first to third aspects, most of the plurality of cover component pieces of the cover body other than the cleavage portion of the airbag. The large diameter upper and lower threads, which have the strength resistance and are sewn at the outer edge of each cover component piece with a sewing machine, are composed of polyester fiber threads, and the thread diameter is 5-10, so the front A part of the cover body having a narrow pressure-receiving area portion of several cover constituent pieces of the cover body in a normal use in which a driver or a passenger sits on the front seat through a seat cover on the seat. The seat cover having a perforation that is sewn with the outer edges (hems) of the cover component pieces as a sewing part is not subject to the driver's or passenger's weight, even if a load greater than the driver's or passenger's weight is applied. Endure Diameter said perforations having a large diameter of 5-10 fastest without being cleaved, can be performed using.

When the front or side impact of the automobile or overturning, the airbag built in the back seat (back) by the impact will immediately respond to the tearing of the cover of the seat seat and inflating The seat cover is a perforation that is sewn by a sewing machine with the outer edges (hems) of some of the cover component pieces having a narrow pressure-receiving area portion among the several cover component pieces as a sewing part. The upper thread and lower thread with a diameter of 40 to 90 are easily and reliably cleaved and the airbag breaks outside, so that the cushioning property of the airbag is exhibited and the safety of the crew is ensured.

According to the invention described in claim 5 of the present invention, in any one of claims 1-4, the perforation is constituted by a pitch at which the number of sewing needle movements is 6 per 3 cm length. Therefore, when a driver or a passenger sits through a seat cover placed on the front seat when driving a car, a narrow pressure-receiving area of several cover components of the seat cover is used during normal use. The perforations sewn by the sewing machine with the outer edges (hems) of the part of the cover parts having a part as the sewing part endure the load of the driver or passenger and are to be inadvertently cleaved. It can be used.

When a front or side impact is applied to the automobile, or when the automobile rolls over, for example, an airbag installed in the back seat (back) ruptures the seat cover and immediately bulges. The seat cover is a perforation that is sewn by a sewing machine with the outer edges (hems) of some of the cover constituent pieces having a narrow pressure-receiving area portion among several cover constituent pieces as a sewing portion. It breaks from the inside and is easily and reliably cleaved, and the cushioning property of the airbag is exhibited, so that the safety of the crew can be ensured.

According to the invention described in claim 6 of the present invention, the front seat of the automobile or the front seat including the seat portion, the back seat portion disposed on the back portion of the seat portion, A method of sewing a seat cover to be attached to an automobile seat seat in which an air bag that can be inflated by being supplied with gas by an inflator upon receiving a side impact or a side impact is provided. A large-diameter having strength resistance during normal use in which a driver or a passenger sits on the seating seat portion with the outer edge portion of most cover component pieces among the individual cover component pieces and the vehicle travels. The upper thread and lower thread are sewn with a sewing machine to form a stitched portion, and the upper thread and lower thread have a diameter smaller than that of the upper thread and lower thread. Shock of time A step of sewing a perforation corresponding to a tearing portion of the airbag, in which a sewn part in which a part of the outer edge of the cover component pieces is sewn so as to be more tearable is provided. If you wear a seat cover with a selected material, color, and design that can be used exhilaratingly according to your preference and in response to seasonal changes, you can prevent the seat from becoming dirty. At the same time, you can decorate the interior of the car to suit your own taste.

In this way, when the driver or passenger is seated via the seat cover on the front seat when the vehicle is running, the seat cover is sewn on the outer edge (hem) of the cover components. The perforation sewn as a part can withstand the load of the driver or passenger, and the perforation can be used without being cleaved.

When the front or side impact on the automobile or the rollover of the automobile occurs, for example, the airbag built in the back seat (back) ruptures and expands the front cover of the seat seat as described above. Immediately, the seat cover breaks through the perforation sewn from the inside as a part of the outer edges (hems) of the several cover components, and easily and reliably tears the Cushioning by the air bag is demonstrated, and crew safety is ensured.

In addition, as described above, the seat cover is made of leather, a synthetic resin vinyl sheet, synthetic leather, a cloth, etc. A perforation sewn as a stitching portion corresponding to the cleavage portion of the airbag is sewn on the front surface of an automobile in which most outer edges of several cover constituent pieces of the cover main body portion are sewn as stitching portions. Since it is composed of upper and lower threads with a smaller diameter than upper and lower threads that have strength against impact during side impacts or rollovers, not only the seat cover itself, but also at the opening of the airbag Correspondingly, the perforation itself that is sewn with a part of the outer edge part of the cover component pieces as the sewing part becomes structurally robust, so that the seat cover becomes dirty and needs to be cleaned or washed. Or Other in the case of repairing a seat cover, removable seat cover for front seat can be easily.

According to a seventh aspect of the present invention, the sewing machine according to the sixth aspect, wherein the sewing machine is capable of being cleaved when the airbag provided in at least the back seat portion of the front seat is operated. Since the opening portion of the eye is provided at a sewing portion between the outer edge portions of the cover constituting piece having a narrow pressure-receiving area portion of the seat cover, the driver or passenger can drive the front seat In the normal use of sitting through a seat cover placed on the seat cover, the seat cover has a perforation that is sewn between the outer edges (hems) of some of the cover components having a narrow pressure-receiving area. It can withstand the driver's or passenger's load and can be used without being perforated.

And, at the time of front or side impact on the automobile, or when the automobile rolls over, for example, the airbag installed in the back seat (back) by the impact cleaves the front cover of the front seat, and the front seat, As soon as it swells in the gap between the back surface of the seat cover, the seat cover is a cover component piece having a narrow pressure-receiving area portion of the seat cover, for example, in a side view, near the upper end portion of the front side end portion. The total height is 1 with respect to the small arc part bulged so as to draw an arc from the position of the height of 9/10 to the upper end with respect to 1 and the upper end of the front side end. A vertically long side surface having a large arc portion bulged so as to draw a large arc from a position of a height of 9/10 to the lower end portion, narrowing upward and having a narrow pressure receiving area Part structure When a certain amount of gas is supplied from the inflator into the air bag, the air bag inflates from the inside to the outside, and a strong pressure is efficiently and concentrated on the side portion constituting piece. Therefore, the airbag breaks the perforation as the sewing portion in which the outer edge portions of the side surface component piece and the one peripheral edge component piece on the vehicle body side are sewn with the sewing machine from the inside, and easily and reliably The eyes are cleaved and the cushioning effect of the airbag is demonstrated, ensuring the safety of the crew.

FIG. 1 is a perspective view showing an embodiment of a seat cover to be attached to an automobile seat according to the present invention. FIG. 2 is a perspective view when the seat cover according to the present embodiment is attached to the seat cover for an automobile. FIG. 3 is a perspective view showing a state in which the airbag is inflated from the side surface of the seat cover that covers the back seat portion when an impact due to front or side impact or rollover is applied to the automobile. FIG. 4 is an enlarged cross-sectional view showing a perforation by a perforation similarly provided in the seat cover of the present embodiment corresponding to the cleavage portion of the airbag. FIG. 5 is a cross-sectional view showing a perforation by a perforation provided in the seat cover of the present embodiment corresponding to the cleavage portion of the airbag.

Hereinafter, the details of the present invention will be described according to the best mode for carrying out the invention with reference to the drawings.

In the present embodiment, the front seat of the automobile is disposed in at least the back seat portion 3 of the front seat 1, which includes a seat seat portion 2, a back seat portion 3 disposed on a back portion of the seat seat portion 2, and Alternatively, for example, Patent Document 1 discloses that the seat 6 is for an automobile seat in which an air bag 6 that can be inflated by being supplied with gas by an inflator 4 in response to a side impact or an impact at the time of a rollover of an automobile. It is the same as a conventional car seat. The illustrated airbag 6 is an airbag that bulges toward the vehicle body 5 when it receives an impact on the front or side of the automobile or when the automobile rolls over. In the present embodiment, the vehicle seat A shown in FIGS. 1 to 3 shows a front seat 1 for a driver to sit on, and the front seat 1 on which a passenger sits is not shown in the drawing, The front seat 1 on the driver side is manufactured in a symmetrical structure.

However, the present embodiment is a seat cover B for adhering to the automobile seat A, and the seat cover B is formed of any one of cloth, in addition to leather, synthetic resin vinyl sheet, synthetic leather. The outer edge portion (hem) of at least one of the plurality of

cover component pieces

11 and 12 of the cover

main bodies

10 and 10 ′ is formed by the driver or passenger on the seating seat portion 2. A sewn portion is sewn by a large diameter upper thread and a large diameter lower thread which are not shown in the figure having strength resistance during normal use when sitting and running an automobile. The cover component piece 11 is attached to the seat portion 2 of the automobile seat A, and the cover member 12 is attached to the back seat portion 3. The large-diameter upper yarn and the large-diameter lower yarn are made of polyester fiber yarn, and the yarn diameter is 5 to 10th, which is a large diameter. In this case, the larger diameter upper thread and the larger diameter lower thread are made 5th to 10th. In the case of larger diameter exceeding 5th, the driver or passenger usually sits on the seat 2 However, when the driver or passenger is seated on the front seat 1, the unevenness of the sewn part is noticeable and the seating comfort is uncomfortable and the appearance is large. This is because the seam with the diameter thread is conspicuous and the appearance is impaired. In addition, when it exceeds 10th, there is no room in the strength resistance during normal use. At this time, in order to sew the outer edge (hem) of at least one of the plurality of

cover component pieces

11 and 12 of the cover

main bodies

10 and 10 ′, optimally, 8th is used.

Among them, the cover constituting piece 11 is arranged in parallel with a pair of plane vertically long side

edge constituting pieces

11A and 11A 'arranged on the left and right upper faces and an intermediate upper face between the side

edge constituting pieces

11A and 11A'. Of a plurality of vertically long seat constituent pieces 11B, arranged side by side, the side edge

constituent pieces

11A, 11A ', and the lower surfaces of the seat constituent pieces 11B,. The upper surface of the peripheral covering member 11C for covering the peripheral surface sewn on the left and right is formed into a cylindrical shape having a flat upper surface.

The cover constituting piece 11 is arranged on a pair of plane vertically long side

edge constituting pieces

11A and 11A 'arranged on the left and right upper faces, and an intermediate upper face between the side

edge constituting pieces

11A and 11A'. A plurality of vertically long seat portion constituting pieces 11B, and the side edge

portion constituting pieces

11A, 11A 'and the lower surface of the seat portion constituting pieces 11B,. Adjacent outer edge portions of the circumferentially covering circumferentially long peripheral portion constituting piece 11C are sewn with a sewing machine to form a sewn portion. At this time, as described above, the upper thread and lower thread used to sew the cover component piece 11 with a sewing machine are seated on the seating seat portion 2 by the driver or passenger, and the vehicle travels. It is sewn with a large diameter upper thread and lower thread having resistance to strength during normal use. The perforations sewn in this way are sewn at a pitch of 7 stitches per 3 cm length. Although this perforation is not shown in the drawing, it may be straight stitching or zigzag stitching, and does not limit the way of sewing.

In addition, the cover component piece 12 includes a front substantially inverted U-shaped peripheral edge component piece 12A disposed on the front upper part and the left and right sides of the front surface, and left and right side piece parts of the peripheral edge component piece 12A. 12A ₁ , 12A ₁ are arranged adjacent to the side surfaces of the plurality of vertically long back piece 12B... And the left and

right side pieces

12A ₁ , 12A ₁ of the peripheral piece 12A. For example, in a side view, a small arc that bulges near the upper end of the front side end so as to draw an arc from the position of the height H1 that is 9 / 10th of the height H1 to the upper end with respect to 1 and part 12C _1, and the upper end portion side of the front end, the large arc portion of the total height H is bulged so as to draw a large arc toward the lower end from the position of the height H1 of 9 of 10 minutes for 1 12C ₂ and the width is narrowed upward, and the pressure receiving area is narrow. The side

surface component pieces

12C, 12C that are long and have a narrow pressure-receiving area portion S, and the back surface reverse U-shaped back component pieces 12D disposed between the back portions of the side

surface component pieces

12C, 12C, It is generally configured in a bag shape.

In the illustrated embodiment, of the side surface

portion constituting pieces

12C, 12C, at least the side surface portion constituting piece 12C on the vehicle body 5 side is provided with the airbag 6 at the time of the front or side impact of the automobile or at the time of rollover. A perforation 13 that can be cleaved by being actuated is formed as a part of a plurality of the cover component pieces so as to form a sewing portion corresponding to the cleaved portion. That is, in this embodiment shown, the perforations 13, a side piece portion 12A ₁ of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side, one side of the vehicle body 5 side adjacent to the side piece portion 12A ₁ The side piece 12A ₁ on the other side (the vehicle inner side) and the side piece 12C ₁ adjacent to the side piece 12A ₁ are sewn together as a sewing portion between the outer edge portions (hems) of the piece 12C. And the back-side reverse U-shape arranged adjacent to the back side of the side

surface component pieces

12C, 12C and the back side end sides of the side

surface component pieces

12C, 12C. As described above, most of the outer edges of the cover component piece 12 adjacent to the back-shaped component piece 12D are usually seated on the seating seat portion 2 so that the driver or passenger can travel the vehicle. Large diameter upper thread and lower thread that have strength when used. It is sewn. The perforations sewn in this way are sewn at a pitch of 7 stitches per 3 cm length. In the present specification, the narrow pressure receiving area portion S has a smaller installation area than the cover constituent pieces of other parts adjacent to the cover

constituent pieces

11 and 12 constituting the seat cover B, and the pressure applied by the airbag 6 A cover component that strongly receives Further, the large

circular arc portions

12C ₂ and 12C ₂ are bulged on the front end sides of the side

surface component pieces

12C and 12C when the driver sits on the front seat 1 with respect to the back seat portion 3. This is to improve the hitting performance on the driver's back, eliminate the burden on the waist, and improve the sitting comfort.

And in this embodiment, the said cleavage part which sews the outer edge part (hem | hem) of several

cover structure pieces

11 and 12 which the air bag 6 expand | swells and can operate | move with a sewing machine is a figure, for example. 4 and FIG. 5, the overlapping parts J1 and J2 of the outer edge portions of the cover

constituent pieces

11 and 12 of the seat cover B are sewn together, but this is a representative example. For example, it is not limited to what is shown in FIG. 4 and FIG.

The perforations 13 cover the cover body 10, 10 'in the cover

constituent pieces

11, 12 so as to have strength during normal use when a driver or a passenger sits on the seating seat portion 2 and travels an automobile. Most of the cover component pieces can be sewed by the impact on the front or side of the automobile or on the rollover by the upper thread and the lower thread as the sewn part where the outer edges of the cover parts are sewn with a sewing machine. In order to sew a part of the cover constituting piece 12 as a sewing part, the upper thread 14 and the lower thread 15 having a small diameter composed of polyester fiber thread are used. The yarn diameters φ1 and φ2 are 40 to 90. The upper thread 14 and the lower thread 15 having a diameter smaller than 40th are used to set the diameters φ1 and φ2 of the upper thread 14 and the lower thread 15 of the perforation 13 to 40th to 90th. This is to prevent the upper thread 14 and the lower thread 15 from being easily cut and the perforation 13 from being easily cleaved when an impact is applied to the front or side of the automobile or at the time of rollover. In addition, when the upper thread 14 and the lower thread 15 having a diameter smaller than 90 are used, the case where the shock is received at the time of the front or side impact of the automobile or the rollover This is because even when an external force equal to or less than the impact is applied, the upper thread 14 and the lower thread 15 are easily cut, and the perforation 13 is inadvertently cleaved and becomes structurally fragile. The thread diameters φ1 and φ2 that are frequently used for the upper thread 14 and the lower thread 15 of the perforation 13 are preferably optimally used as the 80th thread.

The pitch P of the perforations 13 is preferably sewn so that the number of perforations of the perforation needle is 6 per 3 cm length. Thus, sewing is performed so that the pitch P of the perforations 13 is 3 cm per length and the number of needle movements of the perforation needles is 6 per se. When the number of moving needles is 6 or less, the perforation 13 constituted by the upper thread 14 having a thin thread diameter φ1 and the lower thread 15 having a thin thread diameter φ2 becomes rough, and one peripheral edge on the vehicle body 5 side is roughened. by finish sewing the mutual outer edge of the side piece portion 12A ₁ parts component pieces 12A and the side surface portion configured piece 12C adjacent to the side piece portions 12A ₁ to (heme) in a sewing machine, at the front or side impact against automobile Alternatively, or when the airbag 6 installed in the back seat portion 3 ruptures and bulges out the front cover of the front seat 1 due to an impact when the vehicle rolls over, the seat cover B is immediately One peripheral edge on the vehicle body 5 side Mutual outer edge of the side piece portion 12A ₁ and the side surface portion configured piece 12C adjacent to the side piece portion 12A ₁ of the component piece 12A (heme) perforated 13 sewn by the sewing machine becomes rough as a sewing area This is because the perforation 13 becomes easy to loosen and prevents cleavage. Further, if the pitch P of the perforation 13 is 3 cm per length and the number of movements of the perforation needle is set to 6 or more, the pitch P of the perforation 13 becomes fine, and the driver and passengers in the front seat 1 or This is because, when a driver or a passenger sits down and travels an automobile, the perforation 13 is easily cleaved easily by adding weight to the front seat 1. The perforations 13 may be straight stitches or zigzag stitches, and are not limited by the way of sewing.

And after attaching the said cover structural piece 11 to the said seating sheet part 2, in order to fix to the seating sheet part 2, along the lower edge of the peripheral part structural piece 11C of the seating cover B covered on the seating sheet part 2. A belt 8A having both ends of a string portion 7 inserted into a tubular portion sewn in a tunnel shape, tightened and fixed like a purse, and one end fixed to the lower front edge of the peripheral component piece 11C. Is wound around the lower surface of the seating seat portion 2, and the other end of the belt 8A is inserted into a buckle 8C provided at the other end of the short belt 8B with one end fixed to the center of the back surface of the seat portion constituting piece 11B, and tightened and fixed. To do. In the illustrated embodiment, the belt 8A is seated by inserting the belt 8A having one end fixed to the lower front edge of the peripheral component piece 11C into the buckle 8C provided at the other end of the short belt 8B. Although the belt 8A and the short belt 8B are tightened and fixed not only using the buckle 8C, but not shown in the drawing, as a locking tool, Velcro fasteners, male and female snaps, and buttons and button holes may be used.

Further, in order to fix the cover constituting piece 12 after being attached to the back seat portion 3, a tunnel-like shape sewn along the lower edge of the cover constituting piece 12 placed on the back seat portion 3 is used. The cover component piece 12 is fixed to the back seat portion 3 by holding both ends of the string portion 7 ′ inserted into the cylindrical portion and tightening and binding like a drawstring.

The airbag 6 has a sensor not shown in the figure that indicates that the vehicle is tilted more than a predetermined angle when the sensor (not shown) detects a side collision of the vehicle and when the vehicle rolls over. When predicted, a certain amount of gas is supplied from the inflator 4, and the airbag 6 is inflated and deployed. The inflator 4 may have a known structure. As the gas to be supplied, for example, an inert gas such as neon or argon is used in consideration of safety.

The embodiment of the seat cover B to be attached to the automobile seat with the airbag of the present invention has the above-described configuration, and the seat cover B can be used in an exhilarating manner according to, for example, personal preference and seasonal changes. The material, color, and design of the seat cover B are selected so that they can be designed.

In order to attach and fix the selected seat cover B to the seating seat portion 2 and the back seat portion 3 of the front seat 1 for the driver and passengers to sit, first, the peripheral configuration The belt 8A having one end fixed to the lower edge of the front surface of the piece 11C is wound around the lower surface of the seating seat portion 2, and the other end of the belt 8A is fixed to the center of the back surface of the seat portion constituting piece 11B. The cover constituting piece 11 is fastened and fixed to the seating seat portion 2 by the belt 8A.

Next, in order to fix the cover constituent piece 12 after being attached to the back seat portion 3, a tunnel-like shape sewn along the lower edge of the cover constituent piece 12 placed on the back seat portion 3 is used. The cover component piece 12 is fixed to the back seat portion 3 by holding the ends of the string portion 7 ′ inserted into the cylindrical portion and tightening and binding them in a purse-like shape.

In this way, the seat cover B is selected so that the material, color, and design are suitable for design so that it can be used refreshingly according to, for example, personal preference and seasonal changes. Attaching B to the seat section 2 and back seat section 3 of the front seat 1 where the driver and passengers are seated, fixed and designed to suit the interior of the car and to enjoy the changes Can do.

As described above, in FIGS. 1 and 2, the cover constituent piece 11 is attached and fixed to the seating seat portion 2, and the cover constituent piece 12 is attached and fixed to the back seat portion 3. In addition, in a normal use in which the driver and the passenger sit down, or the driver sits down and travels in the car, the seat cover B has a load that is equal to or higher than the weight of the driver or the passenger on the

cover component pieces

11 and 12. Even if it covers, a pair of plane vertically long side

edge component pieces

11A and 11A 'arranged on the left and right upper surfaces of the cover component piece 11 and the upper surface of the intermediate portion between the side

edge component pieces

11A and 11A'. A plurality of the vertically long seat constituent pieces 11B, and the side edge

constituent pieces

11A, 11A ', and the lower surfaces of the seat constituent pieces 11B,. Horizontal perimeter structure for sewn surface covering The front edge of the adjacent outer edge portions with the piece 11C and the cover constituent piece 12 in the front view and the front substantially inverted U-shaped peripheral edge constituent piece 12A disposed over the left and right of the front, and the peripheral edge A plurality of vertically long backrest component pieces 12B disposed between the left and right

side piece portions

12A ₁ and 12A ₁ of the component piece 12A, and the left and right

side piece portions

12A ₁ and 12A _{1 of the} peripheral piece 12A. For example, in a side view, an arc is drawn from the position of the height H1 that is 9 / 10th of the height H1 to the upper end of the front end near the upper end in the side view. The small arc portion 12C ₁ that bulges and the upper end of the front side end portion bulges out so as to draw a large arc from the position of the height H1 of 9/10 to 1 to the lower end portion. Car having a large circular arc portion 12C ₂ narrowed upward A back U-shaped rear surface disposed between the back portion of one side surface portion constituting piece 12C facing the back side of the inside, this side surface portion constituting piece 12C, and the other side surface portion constituting piece 12C on the vehicle body 5 side. For the normal use in which a driver or a passenger sits on the seat 2 and the outer edge of the cover component 12 adjacent to most of the seat cover B with the back component 12D sits on the seat 2. On the other hand, it is sewn with a large diameter upper thread and lower thread made of 5-10th polyester fiber thread that has strength resistance, and the perforation is 7 cm per 3 cm length. Since it is sewn at a fine pitch, the driver or passenger can sit on the seating seat portion 2 and run the vehicle without any trouble. In this case, the upper and lower threads of the large diameter were made 5 to 10th, and when the diameter exceeds 5th, the driver or passenger would normally sit on the seat 2 However, when the driver or passenger is seated on the front seat 1, the unevenness of the sewn portion is noticeable and the seating comfort is uncomfortable and the appearance is due to the large diameter thread. This is because the seam is conspicuous and the appearance is impaired. In addition, when it exceeds 10th, there is no room in the strength resistance during normal use.

At this time, of the peripheral portion constituting piece 12A of the cover construction piece 12, the body 5 side of the side surface portion adjacent to the side piece portion 12A ₁ of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side to the side piece portion 12A ₁ As shown in FIG. 4, the perforation 13 that is sewn with the sewing machine using the mutual outer edge (hem) of the component piece 12C as the sewing part has 6 stitches per 3 cm as shown in FIG. The pitch P is composed of a thread diameter φ1 of 40 to 90 and a thin upper thread 14 and a thread diameter φ2 of 40 to 90 and a thin lower thread 15, so that the driver When the passenger or the driver is seated via the seat cover B on the front seat 1 when the vehicle is running, the seat cover B is one of the cover components 12 on the vehicle body 5 side. side piece portion 12A ₁ this side piece of the peripheral portion constituting piece 12A of Perforations 13 for sewing the mutual outer edge of the side surface portion constituting piece 12C (the heme) in a sewing machine as sewing portion adjacent to section 12A ₁ withstands the load of the driver or passenger, perforations 13 Cleavage It can be used and strong strength is obtained.

And in this embodiment, the said cleavage part which sews with the sewing machine by making the outer edge part (hem | hem) of the several cover

structural pieces

11 and 12 into which the said airbag 6 bulges and expand | deploys is a sewing part. For example, as shown in FIGS. 4 and 5, the perforations 13 are configured by overlapping and sewing the overlapping portions J <b> 1 and J <b> 2 of the outer edge portions of the

cover constituting pieces

11 and 12 in the seat cover B. Therefore, the sewing operation of the perforation 13 is performed easily and reliably. To sew the outer edges of the

cover constituting pieces

11 and 12 in the seat cover B, FIG. 4 and FIG. 5 are used. As shown, it is not limited to what stitches the overlapping portions J1, J2 between the outer edge portions.

Further, when the seat cover B becomes dirty, the seat cover B can be easily removed from the front seat 1 by performing a handling operation of the seat cover B on the front seat 1 in the opposite direction to the above-described mounting operation. When the seat cover B has a broken portion, it can be repaired by repairing the broken portion.

When the front or side impact on the automobile or the automobile rolls over, as shown in FIG. 3, when a sensor (not shown) detects the impact at the front or side impact of the automobile or the automobile rolls over, for example, Gas is supplied from the inflator 4 to the airbag 6 installed in the back seat portion 3, and the front cover of the seating seat portion 2 is cleaved to expand toward the vehicle body 5. Then, immediately, the seat cover B is vehicle body adjacent one side piece portion 12A ₁ of the vehicle body 5 side of the peripheral edge constituent pieces 12A of the front substantially inverted U-shaped cover component piece 12 and to the side piece portion 12A ₁ The perforation 13 sewn with a sewing machine using the mutual outer edge (hem) of the side surface component piece 12C as a sewing part is pierced from the inside by the airbag 6, and is easily and reliably cleaved. The cushioning property of the airbag 6 is exhibited, and the safety of the crew is ensured. The installation length L of the perforation 13 can be freely changed.

At this time, in the present embodiment, the seat corresponds to a cleaving portion that can be cleaved by the operation of the airbag 6 that bulges into a gap between the front seat 1 and the back surface of the seat cover B. For example, as shown in FIGS. 1 to 3, the cover constituting piece 12 occupying the narrow pressure receiving area portion S of the cover B has an overall height H of 10 with respect to 1 near the upper end of the front side end portion in side view. Near the upper end of the small circular arc portion 12C ₁ and the front side end portion bulged to draw an arc from the position of the height 9 of the minute to the upper end, the total height H is 9/10 of 1 Vertical-formed side portions constituting piece 12C formed with the narrow upward having a large arc portion 12C ₂ of the is bulged so as to draw a large arc from the position of height H1 toward the lower end, the body of 12C One side surface component piece 12C on the 5 side and the side surface structure Since the perforations 13 are provided in order to sewn outer edge of the side piece portion 12A ₁ of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side adjacent to the pieces 12C and (haem) mutually a sewn portion When a front or side impact is applied to the automobile or when the automobile rolls over, for example, the airbag 6 installed in the back seat (back) by the impact causes the cover of the front seat 1 to cover the front seat 1 by supplying gas from the inflator 4. Cleavage and bulge into the gap between the front seat 1 and the back of the seat cover B. And as the cover component piece 12 having the narrow pressure receiving area portion S of the seat cover B, for example, near the lower end portion of the front side end portion, the total height H is a position of a height H1 of 9/10 with respect to 1. The large arc portion 12C ₂ that draws a large arc from the bottom end to the lower end portion bulges out, and the pressure applied from the airbag 6 is strong against the side surface component piece 12C on the vehicle body 5 side where the pressure receiving area is narrowed upward. The thread diameter φ1 of the perforation 13 that sews the outer edges of the side surface component piece 12C and the one peripheral edge component piece 12A on the vehicle body 5 side is 40-90 and thin upper thread 14 and thread diameter φ2 of 40-90 and thin lower thread 15 are cut, and perforation 13 is easily and reliably cleaved by air bag 6 from the inside. Secure the crew safely and securely.

In the seat cover B, the perforation 13 provided corresponding to the cleavage portion of the airbag 6 is made of a polyester fiber thread, and the upper thread 14 whose thread diameter φ1 is 40 to 90th and the thread. Since the diameter φ2 is composed of the lower thread 15 having a diameter of 40 to 90, the upper thread 14, the lower thread 15 Either the upper thread 14 or the lower thread 15 is cut so that the perforation 13 can be easily and reliably cleaved.

In order to verify the effectiveness of the seat cover B constituting the first embodiment, the present applicant actually conducted the following test at the Tokyo Metropolitan Industrial Technology Research Center. First, in the first test, for the seat cover B of the first embodiment, the outer edge portions (hems) of some of the

cover component pieces

11 and 12 of the plurality of

cover component pieces

11 and 12 that are torn by the expansion of the airbag 6. , i.e., the mutual outer edge of the side piece portion 12A ₁ of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side of the cover component pieces 12, a side surface portion configured piece 12C adjacent to the side piece portion 12A ₁ (heme) In order to verify the strength of the seam of the perforation 13 that is sewn by the sewing machine with the sewing part as the sewing part, the upper thread 14 and the lower thread 15 made of polyester fiber thread and having a small thread diameter φ1, φ2 are actually Using a 90th sewing thread and a 8th thick sewing thread made of polyester fiber yarn as a comparative example. Using the left and right sides of the test piece with the perforation 13 sewn JIS L 1093: 2005 7.1.1 The club method is adopted, and the interval between the test pieces is set to 7. As a result of the test conducted at 6 cm and a tensile speed of 30 cm / mim, the thread cut by the seam strength test was the 90th thin sewing thread in all the test pieces, and the 8th thick sewing thread was left as it was. It was not cut. At this time, in the test piece, the seam strength until the perforation 13 sewn using the 90th thin sewing thread is cut is 271 (N), that is, 27.7 (kgf). Met. For this reason, when an impact is applied at the time of impact on the front or side of the automobile, or when the automobile rolls over, the perforation 13 is more like 90th ahead of the thick sewing thread like 8th. It has been found that a thin, slung yarn is cut and cleaved.

The second test item is that the perforation 13 of the seat cover B of the first embodiment is inflated by the airbag 6 equipped in the interior of the automobile seat, for example, in the back seat portion 3. The burst strength test of cleaving by the pressure from the inside like this, the abutting edge on the diameter side of the two small pieces made of synthetic leather having a diameter of 8 cm on the small side made of polyester fiber yarn A test piece in which the perforations 13 are sewn using the 90th sewing thread as the actual thread 14 and the lower thread 15 and the 8th large-diameter sewing thread made of polyester fiber thread as a comparative example. The burst strength test of JIS L 1096: 1999 8.16.2 B method (constant speed extension type method) is adopted so that the seam of the test piece is on the center of the clamp , Install the test piece and test 5 times Tsu result, the yarn cut during the burst strength test was thin 90 fastest in all specimens. The breaking strength cut using the 90th sewing thread was 352.4 (N), that is, 36.4 (kgf). For this reason, the perforation 13 of the seat cover B is larger than the sewing thread that is thicker than the eighth stitch due to the pressure from the inside such that the airbag 6 installed in the seat A for automobiles is inflated. First, it was found that a thin ligature yarn such as 90th was cut and cleaved.

Further, as a third test item, a JIS L 1013 tensile strength test is performed on the seat cover B of the first embodiment with a 90th sewing thread having a small diameter and a 8th sewing thread having a large diameter. : 1999 8.5.1 Gripping interval: 20 cm with constant speed extension type testing machine: Ten times of tests at a tensile speed: 20 cm / min. Of these, all 10 were cut. And the tensile strength is 6.77 (N), that is, 0.69 (kgf), and the tensile strength of the 8th large diameter thick sewing thread is 64.77 (N), that is, It was 6.60 (kgf). Therefore, it was found that the 90th small-diameter sewing thread was cut by a tensile strength 1/10 that of the 8th large-diameter sewing thread.

In view of the above, during normal use in which a driver or a passenger is seated via a seat cover B placed on a front seat when the vehicle is running, the seat cover B has an outer edge portion between the cover components ( A perforation 13 that uses a small diameter upper thread 14 and a lower thread 15 such as 90th part as a sewing portion withstands the load of the driver or passenger, and the perforation 13 is cleaved. Can be used without When a large impact is applied to the side of the automobile at the time of a front or side impact of the automobile or at the time of rollover, a sensor not shown in the figure instantaneously detects, so that gas is immediately supplied by the inflator 4 and air When the bag 6 is inflated, an upper thread 14 and a lower thread 15 having a small diameter such as a 90th position corresponding to the cleavage position of the airbag 6 are attached to the outer edges of some cover components of the seat cover B. The perforation 13 sewn using the air bag 6 is cleaved when the airbag 6 is inflated from the inside, and the airbag 6 is inflated to the outside of the seat cover B through the cleaved perforation 13. The cushioning property of the bag 6 is exhibited, and the safety of the crew is ensured.

The official regulation value for the time required for the airbag 6 to tear due to the front or side impact of the automobile has not been clarified, but the product of the present invention is currently adopted by each automobile manufacturer. The airbag is within the tearing time.

Further, as shown in FIG. 4, the perforation 13 formed in the seat cover B has a pitch P of 6 stitches per 3 cm length, so that the front surface relative to the automobile is Alternatively, when a side impact or a rollover of a vehicle occurs, for example, when the airbag 6 built in the back seat portion 3 tears the front cover of the front seat 1 and inflates, the seat cover immediately B are mutually the outer edge of the side piece portion 12A ₁ of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side of the cover component pieces 12, a side surface portion configured piece 12C adjacent to the side piece portion 12A ₁ (heme) The perforation 13 sewn with a sewing machine as a sewing part is easily and reliably cleaved, the cushioning property of the airbag 6 is exhibited, and the safety of the occupant is ensured.

Moreover, as described above, the perforation 13 is constituted by the thin upper thread 14 and the lower thread 15 having a strength with which the perforation 13 can be torn by an impact at the front or side of the automobile or at the time of rollover. Therefore, the seat cover B has a simple structure, can be manufactured with high production efficiency, and has a robust structure. When the seat cover B needs to be cleaned or dirty and needs to be washed, or when the seat cover B is torn and repaired, the seat portion 2 of the vehicle seat A and the back The seat cover B can be easily attached to and detached from the front seat 1 composed of the seat portion 3 by the fixing operation as described above.

In the above-described embodiment, in order to sew the perforated thread 13 corresponding to the large-diameter upper thread and lower thread having resistance to strength and the cleavage portion of the airbag 6 during normal use in running an automobile, The upper thread 14 and the lower thread 15 having a diameter smaller than that of the upper thread and the lower thread have been described in the case where polyester fibers are used, but the material of the upper thread 14 and the lower thread 15 is limited. The upper thread 14 and the lower thread 15 of the present invention may be natural threads such as cotton thread, hemp thread, and wool thread, or the natural thread, polyamide resin, and polyethylene resin. , Spinning with any synthetic resin fiber yarn selected from polystyrene resin and polyacrylic resin.

The above-described embodiment is a representative example, and the airbag 6 that ruptures and swells the front cover of the front seat 1 by the impact of the front or side impact on the automobile or the rollover of the automobile is, for example, the vehicle body 5. The case where the air bag 6 is installed inside the back seat portion 3 and bulges out toward the vehicle body 5 has been described as a representative example. When the seat is seated on the vehicle body side 5 of the seating seat portion 2, the direction of the airbag 6 is not limited to the side surface of the vehicle body 5, and it bulges forward so that the impact caused by a collision from the front of the automobile can be avoided. Buffering is also within the scope of the present invention.

In the above description, the perforation 13 is provided in the seat cover B that is attached to the front seat 1, so that the airbag 6 is inflated by the impact at the time of front or side impact on the automobile or rollover of the automobile. Although the case where the front cover of the front seat 1 is opened and the cover of the front seat 1 is cleaved is described representatively, the present invention attaches to the rear seat when the rear seat is equipped with the airbag 6. By providing the perforation 13 in the seat cover B, when the front or side impact on the automobile or the automobile rolls over, the rear seat cover is cleaved by the impact and the airbag 6 is inflated. This is the scope of the invention.

Further, in the above description, the perforation 13 provided on the seat cover B to be attached to the front seat 1 can be opened by the airbag 6 being actuated at the time of a front or side impact of the automobile or rollover. a cover component piece side piece portion 12A ₁ of the equivalent to an open裂個office of one of the peripheral edge constituent pieces 12A of the vehicle body 5 side cross made, and side portions constituent pieces 12C of the body 5 side adjacent to the side piece portion 12A ₁ The outer peripheries (hems) are configured as sewing parts, but the installation location, shape, and installation length L of the perforation 13 are not limited to those shown in the figure, and can be freely set.

The present invention further covers a seat cover on which a material, color, design, etc. that can be used exhilaratingly according to the preference of the person on the seat seat and in response to seasonal changes are selected in design, The seat is prevented from getting dirty, and when a front or side impact is applied to the automobile, or when the automobile is turned over, the airbag, for example, installed in the back seat (back), covers the cover of the seat. As soon as the seat cover swells and bulges, the perforation that sews the outer edges (hems) of the components of the seat cover is easily and reliably cleaved, and the cushioning property of the airbag is exhibited. It is suitable for applications and functions that ensure the safety of personnel and make the structure simple and easy to attach to and detach from the seat.

DESCRIPTION OF SYMBOLS 1 Front seat seat 2 Seating seat part 3 Back seat part 4 Inflator 5 Car body 6 Air bag 11 Cover component piece 12 Cover component piece 12C Side surface component piece 12C ₂ Large circular arc part 13 Perforation 14 Upper thread 15 Lower thread A For automobiles Seat seat B Seat cover S Narrow pressure receiving area

Claims

Gas is received by the inflator in response to an impact at the front or side of the automobile or at the time of rollover in the front seat comprising the seating seat, the back seat disposed on the back of the seating seat, and the seat. A seat cover that is attached to a seat for an automobile in which an air bag that is supplied and can be inflated operates.
A large one of a plurality of cover constituent pieces of the cover main body with a large-diameter upper thread and lower thread having resistance to strength during normal use in which a driver or passenger sits on the seating seat and travels an automobile. A sewn part that sews the outer edges of the cover component pieces of the part; and
A pair of cover constituent pieces of the seat cover sewn through a perforation corresponding to a cleavage point of the airbag by a perforation with an upper thread and a lower thread having a diameter smaller than that of the upper thread and the lower thread. And a sewn portion that sews the outer edge portion,
A seat cover that is attached to an automobile seat that operates an airbag.
The cover component piece in which the opening portion of the perforation, which can be opened by operating the airbag provided in at least the back seat portion of the front seat, has a narrow pressure receiving area portion of the seat cover. The seat cover for attaching to the seat seat for an automobile in which the airbag operates according to claim 1, wherein the seat cover is provided at a sewing portion between the outer edge portions of the airbag.
The upper thread and the lower thread of the perforation for sewing together a part of the cover constituent pieces of the seat cover are made of polyester fiber thread, and the thread diameter is 40-90. A seat cover that is attached to a seat for an automobile in which the airbag according to claim 1 operates.
A large-diameter upper thread having a strength resistance and a lower portion obtained by sewing the outer edges of the cover components other than the cleavage portion of the airbag among the plurality of the cover components of the cover body with a sewing machine. The automobile seat seat for operating an airbag according to any one of claims 1 to 3, wherein the yarn is made of polyester fiber yarn, and the yarn diameter is 5 to 10th. Seat cover to wear.
The airbag according to any one of claims 1 to 4, wherein the perforation is configured with a pitch at which the number of sewing needle movements is 6 per 3 cm length. A seat cover that is attached to a seat for an automobile.
Gas is received by the inflator in response to an impact at the front or side of the automobile or at the time of rollover in the front seat comprising the seating seat, the back seat disposed on the back of the seating seat, and the seat. A sewing method of a seat cover to be attached to an automobile seat seat in which an air bag that is supplied and inflatable is activated,
During normal use in which a driver or a passenger sits on the seating seat part of the outer edge part of the majority of the cover constituent pieces of the cover main body on the seating seat portion and the vehicle travels, the strength resistance is increased. Sewing a sewing machine with a large diameter upper thread and lower thread to form a sewn portion;
A part of the outer edge part of the cover constituent pieces is sewn with the upper thread and the lower thread having a diameter smaller than that of the upper thread and the lower thread so as to be cleavable at the time of front or side impact of the automobile or by impact at the time of rollover. And sewing the perforated portion corresponding to the cleavage portion of the airbag,
A sewing method of a seat cover to be attached to an automobile seat seat in which an airbag operates.
The cover component piece in which the opening portion of the perforation, which can be opened by operating the airbag provided in at least the back seat portion of the front seat, has a narrow pressure receiving area portion of the seat cover. 7. The method for sewing a seat cover to be attached to a seat seat for an automobile in which an airbag operates according to claim 6, wherein the seat cover is provided at a sewing portion between outer edge portions of the airbag.