JP5024956B2 - Airbag fitting and airbag device - Google Patents

Description

  The present invention relates to, for example, an airbag attachment device for attaching an airbag that is deployed along a side window portion of an automobile to a vehicle body, and an airbag device including the airbag attachment device.

  2. Description of the Related Art Conventionally, as an airbag apparatus including an airbag that inflates and deploys by introducing gas, a so-called curtain airbag that deploys along a window portion on a side portion of a vehicle body of an automobile is known. In such an airbag, mounting pieces protruding from a plurality of locations on the upper edge are attached to the vehicle body along the upper side of the window on the side surface of the passenger compartment, using bolts and rivets. Sometimes, it is folded and stored along the upper edge of the side of the passenger compartment. When an impact from the side such as a side collision is received, gas is supplied to the airbag from the inflator, and the airbag is inflated and deployed downward along the window of the side door, the B pillar, and the like.

  And the attachment piece part of such an airbag is a cloth like other parts of the airbag, and can be firmly connected to the vehicle body using a metal attachment. For example, a configuration is known in which two metal plates are placed along the front and back of an attachment piece portion of an airbag, and the metal plate and the attachment piece portion of the airbag are fixed with bolts (see, for example, Patent Document 1). ).

  However, in the above-described conventional configuration, two metal plates are placed along the attachment piece of the airbag, and the bolts are inserted and tightened to the vehicle body while the attachment holes provided in the respective members are aligned and held. Is necessary, and it is difficult to improve workability.

  Here, a configuration in which one metal plate is bent to form a fixture and the number of parts is reduced is conceivable.

On the other hand, the airbag mounting piece is formed into a loop shape by folding the cloth protruding in the shape of a tongue on the upper side and stitching it downward, and the fitting is locked to the loop-shaped mounting piece portion. A configuration for holding the bag is conceivable.
JP 2006-117110 A (FIGS. 2 and 7)

  As described above, the configuration in which a plurality of members are used in alignment has a problem that it is not easy to improve workability. And the fixture suitable for the structure used for a loop-shaped attachment piece part by the structure which bends one metal plate is calculated | required.

  The present invention has been made in view of the above points, and provides an airbag attachment device that can easily and reliably support an airbag with a simple configuration and an airbag device including the airbag attachment device. Objective.

  The airbag attachment device according to claim 1 is an airbag attachment device attached to a loop-shaped attachment piece portion provided in the airbag, and is provided with a closing support provided with an attachment receiving portion attached to a member to be attached. A continuous support portion inserted into the loop-shaped attachment piece, and at least one of the closed support portion and the insertion support portion, and is deformed in the opening / closing direction. And a deforming portion that allows insertion of the attachment piece portion into the insertion support portion in the open state and prevents the attachment piece portion from coming off from the insertion support portion in the closed state.

  In this configuration, the insertion support portion is inserted into the loop-shaped attachment piece portion with the deformation portion opened, and the attachment piece portion is prevented from coming off with the deformation portion closed, and the airbag is used for the airbag. The fixture is held without detachment. By attaching the attachment receiving portion to the attached member, the airbag is attached to the attached member.

  According to a second aspect of the present invention, there is provided the airbag attachment device according to the first aspect, wherein the closing support portions are respectively extended from both end sides of the insertion support portion so that the distal ends face each other so as to be separated from each other. It is provided with a single part and is surrounded by the insertion support part and the closing support part, and the attachment piece part can be inserted and communicated to the outside through the space between the closed closing piece parts. An opening is provided.

  In this configuration, the insertion support portion is inserted into the loop-shaped attachment piece portion by inserting the loop-shaped attachment piece portion into the opening with the opposing closing piece portions spaced apart from each other. The attachment piece portion is prevented from coming off by the closing support portion, and the airbag attachment tool is held without being detached from the airbag. By attaching the attachment receiving part of the closing support part to the attached member, the insertion support part supports the attachment piece part, and the airbag is attached to the attached member. When the airbag is deployed, a force is applied to the closing piece portions extending from both ends of the insertion support portion, and the airbag is firmly supported.

  According to a third aspect of the present invention, there is provided the airbag mounting tool according to the second aspect, wherein the airbag mounting tool is provided on the first insertion support portion, the first closing piece portion, and the first closing piece portion. A first plate portion including a first attachment receiving portion, a second insertion support portion overlaid on the first insertion support portion, and a second closing piece partially overlapped with the first closing piece portion And a second plate portion provided with a second attachment receiving portion overlaid on the first attachment receiving portion, and a bent connection for integrally connecting the first plate portion and the second plate portion. Part.

  And in this structure, the attachment tool for airbags is comprised easily by bending a connection part. The configuration is simplified, the number of parts is reduced, and the manufacturing cost is reduced. A first insertion support portion and a second insertion support portion are inserted into the attachment piece portion of the airbag, and the insertion support portion constituted by the first insertion support portion and the second insertion support portion allows air to The bag mounting piece is firmly supported. By attaching the closing support portion to the attached member using the attachment receiving portion constituted by the first attachment receiving portion and the second attachment receiving portion, the first closing piece portion and the second closing piece portion are provided. The air bag attachment tool is held without being detached from the air bag. An insertion support part is comprised by the 1st insertion support part and the 2nd insertion support part, disperse | distributes and receives the force at the time of expansion | deployment of an airbag, and an airbag is supported firmly.

  According to a fourth aspect of the present invention, in the airbag attachment device according to the third aspect, the connecting portion connects one end portion of the first insertion support portion and one end portion of the second insertion support portion. To do.

  In this configuration, the width of the connecting portion can be reduced, and the bending operation of the connecting portion is facilitated.

  The airbag attachment device according to claim 5 is the airbag attachment device according to claim 3, wherein the connecting portion includes an edge portion on the opening side along the longitudinal direction of the first insertion support portion and the second attachment portion. The edge part of the opening part side along the longitudinal direction of an insertion support part is connected.

  In this configuration, the bent portion of the connecting portion faces the opening along the longitudinal direction of the insertion support portion, and the curved surface of the connecting portion is brought into contact with the mounting piece portion, so that the mounting piece portion can be protected. . By bending the connecting portion, the portion that forms the first insertion support portion and the second insertion support portion becomes an opening, so that the manufacturing cost is reduced by effectively using the material.

  According to a sixth aspect of the present invention, there is provided the airbag mounting tool according to the first aspect, wherein the airbag mounting tool includes a closing support portion that is continuous with both end portions of the insertion support portion. A first side piece projecting continuously from one end, a first attachment plate portion continuing to the tip side of the first side piece portion, and the first attachment plate portion. A first attachment receiving portion, a second side piece projecting continuously from the other end of the insertion support portion, and a deformation continuously bent to the tip side of the second side piece And a second attachment plate portion that is continuous with the connection portion, and a second attachment receiving portion that is provided on the second attachment plate portion, and the second attachment plate. The portion overlaps with a part of the first mounting plate portion and opposes the first mounting plate portion, and the second mounting receiving portion and the first mounting receiving portion are stacked. It is configured to be surrounded by an insertion support portion and a closing support portion, and has an opening portion through which the attachment piece portion can be inserted and communicated with the outside through the space between the attachment plate portions in a separated state. It is.

  In this configuration, the insertion support portion is looped by inserting the loop-shaped attachment piece portion into the opening portion with the first attachment plate portion and the second attachment plate portion facing each other being separated from each other. It is inserted into the mounting piece part. The second mounting plate portion is closely overlapped with a part of the first mounting plate portion, and the closing support portion is mounted using the mounting receiving portion constituted by the first mounting receiving portion and the second mounting receiving portion. By attaching to the attached member, the attachment piece portion is prevented from coming off by the closing support portion, and the airbag attachment tool is held without being detached from the airbag, and the airbag is covered through the airbag attachment tool. It is attached to the attachment member. When the airbag is deployed, a force is applied to the closing piece portions extending from both ends of the insertion support portion, and the airbag is firmly supported. It is possible to use only the first mounting plate portion and the second mounting plate portion as members that are overlapped with each other, and it is easy to reduce the weight and reduce the manufacturing cost.

  The airbag device according to claim 7 is an airbag including an inflating portion and a loop-shaped attachment piece portion that are expanded by introduction of gas, and the attachment device portion according to any one of claims 1 to 5. The airbag mounting tool is provided.

  And in this structure, since the airbag fixture according to any one of claims 1 to 6 is provided, the airbag fixture is held without being detached from the airbag. By attaching the attachment receiving part of the closing support part to the attached member, the attachment piece part is supported via the insertion support part, and the airbag is attached to the attached member. The airbag is easily and reliably supported with a simple configuration.

  According to the present invention, the airbag attachment tool can be easily attached to the loop-like attachment piece of the airbag. An airbag having a loop-shaped mounting piece can be easily and reliably supported by the airbag mounting tool. The configuration of the airbag attachment is simple and the manufacturing cost is reduced.

  Hereinafter, a first embodiment of an airbag mounting tool and an airbag apparatus according to the present invention will be described with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes an airbag. An airbag device 2 including the airbag 1 is also called a curtain airbag device, and is arranged on a roof side portion of a compartment of a vehicle body 3 of an automobile as a vehicle. Yes. The airbag 1 is also called a curtain airbag, a side-impact airbag, or a head protection airbag. When the airbag 1 receives an impact such as a side collision, the airbag 1 has a curtain-like shape. It expands in a planar shape and protects the occupant who is the object to be protected.

  Further, although not shown, the vehicle body 3 includes a front seat and a rear seat on which a passenger can sit, and a window that forms a predetermined surface that can be opened at the top corresponding to the front seat and the rear seat. A door (not shown) provided with a portion (side window) is provided. Further, on both sides of the passenger compartment, a front pillar called A pillar as a pillar, a center pillar called B pillar, and a rear pillar called C pillar are provided in order from the front side, and a roof side rail or grab is provided above these pillars. A vehicle body panel 15 that constitutes a member to be attached, also called a rail bracket, is provided. The ceiling panel is supported via the vehicle body panel 15. Further, pillar garnishes, which are interior materials, are attached to the entire length of each pillar or a part of the passenger compartment, and these pillars are covered. And the airbag apparatus 2 is attached to the compartment side from the front pillar to the vehicle body panel 15, and is a soft or deformable ceiling plate together with a part of the front pillar, the vehicle body panel 15 and the ceiling panel. It is covered with a headlining (roofing) which is a panel. Further, an elastically deformable packing body made of a soft resin or the like is attached to the lower end portion of the vehicle body panel 15. This packing body is also referred to as a welt or a body seal, and the upper portions of the doors are in contact with and in close contact with each other, and cover the gap between the vehicle body panel 15 and the head lining. Each seat is provided with a seat belt, and the center pillar is provided with a support portion for supporting these seat belts.

  The airbag device 2 can be called a curtain airbag device, and is a so-called front and rear seat airbag capable of protecting passengers in the front and rear seats. The roof is surrounded by the vehicle body panel 15 and the head lining. An airbag 1 that is folded and stored in a side portion, an inflator that is stored above the rear seat and that supplies gas to the airbag 1 to inflate and deploy, and a cylinder that covers the folded airbag 1 and retains its shape And a mounting bracket 20 as an airbag mounting tool that constitutes a mounting portion for mounting the airbag 1 to the vehicle body panel 15.

  The airbag 1 is formed by combining one or a plurality of base fabrics, and has an airbag body 21 formed in a flat bag shape, and an attachment portion extending from a plurality of locations of the airbag body 21. And a tether is connected to the front side portion of the airbag main body portion 21.

  As shown in FIG. 1 (c), the airbag main body 21 is composed of an outer base fabric portion 24 that is a base fabric disposed on the outer side on the vehicle body 3 side, and a base fabric disposed on the vehicle compartment side. A bag-like inflatable portion 27 that inflates and expands when gas flows in, and an upper portion of the rear end of the airbag main body 21 are overlapped with an inner base fabric portion 25 and stitched together at a predetermined sewing portion 26 that is a joint portion. In addition, a gas introduction port that communicates the inflatable portion 27 with the outside, a sheet-like non-inflatable portion that does not flow in gas and does not expand and develop, and the like are provided. Further, the inflating portion 27 is an air chamber that is a hollow portion, and a communication portion that is located at the upper portion of the longitudinal central portion that is the front-rear direction of the airbag body portion 21, and a first that communicates with the front side of the communication portion A front seat protection part (front seat protection area) as an inflating part, and a rear seat protection part (rear seat protection area) as a second inflating part communicating with the rear side of the communication part. In addition, the sewing part 26 includes an outer peripheral sewing part 26a that is an outer peripheral connection part that sews the outer periphery of the inflating part 27, and a restricting part that restricts the width dimension when each protective part is deployed. And this control part is located in one place or multiple places of the expansion part 27, and is formed in the outer peripheral sewing part 26a integrally or separately. Further, for example, an annular protection portion is formed at the terminal portion of the restriction portion. Further, between the outer base fabric portion 24 and the inner base fabric portion 25, as necessary, the inner pipe, the front side, as a means for guiding the gas or regulating the width dimension of the expansion portion 27 at the time of deployment. A partition body or a rear partition body is attached by sewing or the like.

  The attachment piece 22 is also called a bag tab. In order to attach the airbag 1 to the vehicle body 3, a plurality of pieces of air are provided so as to protrude upward from a predetermined portion of the upper edge of the airbag body 21. It is a bag side connection part, and the attachment bracket 20 is attached to each. Each attachment piece 22 is formed integrally with the base fabric portions 24 and 25 constituting the airbag main body portion 21. In the present embodiment, the attachment piece portion 22 has a tongue upward from the outer base fabric portion 24 and the inner base fabric portion 25. One piece, that is, the portions projecting in the form of a band with a predetermined width dimension in the front-rear direction are overlapped with each other, folded further downward, and the front end portion 28 is sewn to the airbag main body 21 with the attaching piece sewing portion 29, It is formed as an annular or loop-shaped loop piece. Further, the distal end portion 28 of the mounting piece portion 22 is formed in a substantially rectangular shape having a larger width dimension than the other portions, and the corner portion of the distal end is rounded into an arc shape. On the other hand, the base end portion 30 on which the distal end portion 28 of the mounting piece portion 22 is overlapped is formed such that a portion having a width dimension similar to that of the distal end portion 28 slightly protrudes from the upper edge portion of the airbag main body portion 21. The both end portions of the base end portion 30 are smooth curved surfaces and are continuous with other portions.

  Further, the tether is also called a strap or the like, is formed in a string shape with a base cloth or the like, and a base end portion is connected to the front side portion of the airbag main body portion 21 by sewing or the like.

  In addition, each mounting bracket 20 is formed by pressing a metal plate having the same shape and plastic deformation, and in this embodiment, each mounting bracket 20 is punched as shown in FIG. The single steel plate is bent and integrally formed as shown in FIG. 3, and is further bent and attached to the airbag 1 as shown in FIG.

  As shown in FIGS. 1 to 3, each mounting bracket 20 is integrated with the first plate portion 31, the second plate portion 32, and the first plate portion 31 and the second plate portion 32. And a connecting part 33 constituting a deforming part which is a plastically deforming part. And the 1st board part 31 can also be called a main board, the 1st insertion support part 41, the 1st closing piece part 42 which comprises the deformation | transformation part which is a plastic deformation part, and a 1st attachment receiving part 43 is provided. The second plate portion 32 can also be referred to as a folded plate, and includes a second insertion support portion 45, a second closing piece portion 46 that constitutes a deformation portion that is a plastic deformation portion, and a second attachment receiver. A portion 47 is provided. As shown in FIG. 1 (c), the first insertion support portion 41 and the second insertion portion 33 are bent in a state where the connection portion 33 is bent and the first plate portion 31 and the second plate portion 32 are overlapped. An insertion support portion 51 that supports the airbag 1 is configured by the insertion support portion 45, and a closing support portion 52 that is supported on the vehicle body 3 side by the first closing piece portion 42 and the second closing piece portion 46 is formed. The first attachment receiving portion 43 and the second attachment receiving portion 47 form an attachment receiving portion 53 which is another component attachment hole and a bolt attachment hole, and the insertion support portion 51 and the closing support portion 52 A substantially quadrangular opening 55 is formed between the two.

  More specifically, the first insertion support portion 41 of the first plate portion 31 has a vertical plate shape whose longitudinal direction is the front-rear direction, and the upper edge portion is on the opposite side of the second plate portion 32. A curved airbag facing portion 41a is formed so as to face the opening 55. A first closing piece 42 is integrally extended from one longitudinal end of the first insertion support portion 41 toward the upper side, and a rectangular hole-shaped locking receiving portion 31a is formed. Has been. Further, a connecting portion 33 is integrally extended to the other end portion in the longitudinal direction of the first insertion support portion 41. The first closing piece 42 is integrally connected to the mounting plate portion 42a facing above the first insertion support portion 41, and the mounting plate portion 42a and one end portion of the first insertion support portion 41. Side piece portion 42b. The mounting plate portion 42a is formed with a circular hole-shaped first mounting receiving portion 43 at a substantially central portion, and is located on one side of the first mounting receiving portion 43 and is rectangular. A hole-shaped locking receiving portion 31b is formed. Further, a claw-shaped positioning portion 31c is integrally projected from the upper end portion of the mounting plate portion 42a and is bent so as to be tilted to the second plate portion 32 side.

  The second insertion support portion 45 of the second plate portion 32 has a vertical plate shape whose longitudinal direction is the front-rear direction, and the upper edge portion is folded back to the opposite side of the first plate portion 31. A curved air bag facing portion 45a facing the opening 55 is formed. Then, from one end portion of the second insertion support portion 45 in the longitudinal direction, a second closing piece portion 46 is integrally extended toward the upper side, and a connecting portion 33 is integrally extended. . Further, a claw-like locking portion 32a is integrally projected from the other end portion in the longitudinal direction of the second insertion support portion 45, and is bent so as to be tilted toward the first plate portion 31 side. . In addition, the second closing piece 46 is integrally connected to the mounting plate 46a facing above the second insertion support 45 and the mounting plate 46a and one end of the second insertion support 45. Side piece portion 46b. The mounting plate portion 46a is formed with a circular second mounting receiving portion 47 at a substantially central portion, and is located on the other side of the second mounting receiving portion 47, and has a claw. A locking portion 32b is integrally formed and is bent so as to be tilted to the first plate portion 31 side. In the present embodiment, the diameter of the second attachment receiving portion 47 is formed larger than the diameter of the first attachment receiving portion 43. However, the diameter of the first attachment receiving portion 43 is not limited. And the diameter of the second attachment receiving portion 47 can be made the same.

  Further, as shown in FIG. 1 (c), a mounting hole 15a having a thread groove constituting a mounted portion is formed at a predetermined position of the vehicle body panel 15 of the vehicle body 3 integrally or by welding a nut. In addition, a slit-shaped positioning receiving portion (not shown) is formed above the mounting hole 15a. Then, a bolt 50, which is an attachment tool and a fastening tool, is screwed into the attachment hole 15a from the inside of the vehicle and is fastened and fixed to the vehicle body panel 15.

  Next, the assembly process of this airbag apparatus 2 and the attachment process to the vehicle body 3 are demonstrated.

  First, the airbag 1 is folded into a predetermined elongated shape and inserted into the sleeve from the state in which the airbag 1 is spread out in a flat shape, and each attachment piece 22 is pulled out from the slit of the sleeve. . The airbag body 21 can be folded in various ways. For example, the lower side part is folded in a roll shape to form an integrated part, and the upper part is formed from both sides. It can be folded as a parasol-shaped guide for wrapping.

  Next, the mounting bracket 20 is mounted on each mounting piece 22. As shown in FIG. 3, the mounting bracket 20 is punched from the plate material, and the positioning portion 31c and the locking portions 32a and 32b are bent by 90 degrees, the connecting portion 33 is 90 degrees or more, and the first plate portion 31 and In other words, a gap is formed between the second plate portion 32 and the second plate portion 32 so as to open and bend in a substantially square shape on one end side.

  Then, the mounting work of the mounting bracket 20 to the mounting piece portion 22 is performed in the gap between the first plate portion 31 and the second plate portion 32 of the mounting bracket 20 as shown in FIG. The mounting piece 22 is inserted between the second insertion support portion 45 and the second closing piece 46 of the second plate portion 32 so that the base fabric of the mounting piece portion 22 is inserted, and then attached. While rotating the bracket 20 relative to the mounting piece 22, the mounting piece 22 is connected to the first insertion support portion 41 of the first plate portion 31 and the first as shown in FIG. Insert and combine between the closing piece 42. From this state, the connecting portion 33 of the mounting bracket 20 is further bent so as to close the open portion, and the first plate portion 31 and the second plate portion 32 are brought into contact with each other to constitute the mounting bracket 20. In this state, the insertion support portion 51 of the mounting bracket 20 is inserted into and locked in the loop-shaped mounting piece portion 22, and the mounting piece portion 22 is locked in the opening 55 of the mounting bracket 20. 20 is attached to the attachment piece 22 so as not to be detached. That is, in this state, the periphery of the opening 55 of the mounting bracket 20 is closed by being surrounded by the first plate portion 31 and the second plate portion 32, and the claw-like locking portions 32a and 32b are further closed. Inserted into the locking receiving portions 31a and 31b, the mounting piece 22 is held so as not to be detached from the opening 55. Further, by bending each of the locking portions 32a and 32b and locking the first plate portion 31 and the second plate portion 32, it is ensured that the mounting piece portion 22 does not come off from the opening 55. Retained.

  The airbag device 2 is configured with the mounting bracket 20 attached to the airbag 1 and the inflator connected to the airbag 1, and the airbag device 2 is stored and transported. .

  Next, the operation of arranging the airbag device 2 along the vehicle body panel 15 and attaching it to the vehicle body 3 will be described. First, in a state where the airbag device 2 is aligned with the vehicle body panel 15, the positioning portion 31c of the mounting bracket 20 is inserted into the positioning receiving portion of the vehicle body panel 15 to perform positioning and temporary fixing. In this state, the shaft portion of the bolt 50 is inserted into the mounting receiving portion 53 of the mounting bracket 20 from the inside of the vehicle, and is screwed into the mounting hole 15a of the vehicle body panel 15 and tightened. Then, the first bracket portion 31 and the second plate portion 32 of the mounting bracket 20 are tightened so as to be in close contact between the head of the bolt 50 and the vehicle body panel 15, and the mounting bracket 20 is attached to the vehicle body panel 15. Fixed. That is, the airbag 1 is attached to the vehicle body panel 15 via the mounting bracket 20, and the first plate portion 31 and the second plate portion 32 are brought into close contact with each other so that the mounting piece portion 22 is firmly attached to the mounting bracket 20. It will not come off.

  Further, the front end portion of the tether led out from the front end portion of the airbag main body portion 21 is connected to the vehicle body 3 and the inflator is attached to the vehicle body 3 by a retainer (not shown) and a control device (not shown) using a harness or the like Connect electrically. Next, the airbag 1 and the inflator are covered with a head lining, thereby completing the operation of attaching the airbag device 2 to the roof side portion.

  Next, the deployment operation of the airbag 1 will be described.

  In the event of a side collision of the vehicle body 3, the inflator is actuated by the control device, and the gas injected from the inflator is introduced into the inflating portion 27 of the airbag main body portion 21 from the gas introduction port. Then, the airbag main body 21 rapidly protrudes downward from the roof side portion while inflating the inflatable portion 27 while breaking the sleeve and the like, and further deforming the headlining and the like. The airbag 1 is inflated and deployed downward along the window and the like, that is, covers the front and rear windows and pillars in a curtain shape, and protects the head and chest of the front and rear passengers. Deploy to When the airbag 1 is deployed, a large force is applied to the mounting bracket 20 due to the deployment pressure downward of the airbag 1, but the metal mounting bracket 20 and the metal body panel 15 are planar. Compared with the configuration in which the base fabric is directly attached to the vehicle body panel 15, the strength of the connecting portion is improved due to the contact structure.

  As described above, according to the present embodiment, the airbag device 2 such as the so-called curtain airbag device is connected by hooking the mounting bracket 20 to the loop-shaped mounting piece portion 22 which is an ear portion provided in the airbag 1. By a simple operation of bending the portion 33, it is possible to realize a configuration in which the mounting piece portion 22 is linearly abutted by the mounting bracket 20 and supported by the upper mounting receiving portion 53, and the mounting bracket 20 is detached from the mounting piece portion 22. As a result, the assembly work can be facilitated and the manufacturing cost can be reduced.

  That is, the mounting bracket 20 can be held so as not to be detached from the mounting piece 22 during transportation of the airbag device 2 or when mounting the airbag device 2 on the vehicle body 3.

  In addition, the mounting bracket 20 is formed by simply bending the connecting portion 33 that connects the first plate portion 31 and the second plate portion 32, which are formed of a single metal plate. The opening 55 whose periphery is closed so as to be held can be formed, the number of parts can be reduced, and the manufacturing cost can be reduced.

  In particular, in the first embodiment, the width of the connecting portion 33, that is, the vertical dimension is small, the connecting portion 33 can be easily bent, the assembling work is facilitated, and the manufacturing cost can be reduced.

  In addition, the mounting bracket 20 is attached to the vehicle body 3 so as to be connected, so that the mounting bracket 20 has a shape that is nearly symmetrical when viewed from the side, and evenly distributes the load applied to each part of the mounting bracket 20 when the airbag 1 is deployed. it can. Further, the insertion support portion 51 of the mounting bracket 20 is a two-layer metal plate, and a load is equally applied to both the first plate portion 31 and the second plate portion 32. Therefore, compared with a configuration in which a load is applied to only one plate, the strength can be easily improved, the thickness of the plate material constituting the mounting bracket 20 can be reduced, and the manufacturing cost can be reduced.

  Further, the portion of the airbag 1 where the attachment piece 22 abuts is a curved airbag facing portion 41a, 45a formed by bending two metal plates, so that when the airbag 1 is deployed, the attachment piece portion made of cloth is used. The metal edge portion of the mounting bracket 20 is not pressure-contacted to 22 and receives a force in a wide area, so that the mounting piece portion 22 of the airbag 1 can be protected.

  In the above embodiment, the claw-shaped positioning portion 31c is integrally projected from the upper end portion of the mounting plate portion 42a of the first plate portion 31, and is bent toward the second plate portion 32 side. The claw-shaped positioning portion 31c may be provided at the upper end portion of the second plate portion 32 and bent to the opposite side of the mounting plate portion 42a of the first plate portion 31. In this case, the diameter dimension of the second attachment receiving portion 47 is the same as the diameter dimension of the first attachment receiving portion 43, or the diameter dimension of the second attachment receiving portion 47 is the same as the first attachment receiving portion 43. It is formed smaller than the diameter dimension.

  Further, the mounting bracket 20 does not form the claw-shaped locking portions 32a and 32b and the locking receiving portions 31a and 31b into which the claw-shaped locking portions 32a and 32b are inserted, thereby simplifying the structure. You can also Further, the mounting bracket 20 does not form the locking portions 32a and 32b and the locking receiving portions 31a and 31b locked to the claw-shaped locking portions 32a and 32b, and the first plate portion 31 and The configuration of the second plate portion 32 can be simplified by using the same shape.

  In the above-described embodiment, the mounting bracket 20 is formed by arranging the first plate portion 31 and the second plate portion 32 on both sides, and the first insertion support portion 41 of the first plate portion 31. The end portions in the longitudinal direction of the second insertion support portion 45 of the second plate portion 32 are connected to each other by the connecting portion 33. However, the present invention is not limited to this configuration, and the first plate portion 31 and the second plate portion 32 Can be bent in a suitable direction.

  Next, a second embodiment of the mounting bracket will be described with reference to FIGS.

  The second embodiment has basically the same configuration as that of the first embodiment, and the same reference numerals are given and description thereof is omitted. And in this 2nd Embodiment, the part which does not contribute to the support of the attachment piece part 22 of the airbag 1, and the attachment to the vehicle body 3 is abbreviate | omitted suitably with respect to 1st Embodiment, and the lightweight of the attachment bracket 20 is carried out. It is planned.

  For example, with respect to the second closing piece portion 46 of the second plate portion 32, the side provided with the side piece portion 46 b is formed so as to be inclined so that the width dimension becomes smaller upward, and the side piece The side opposite to the side where the portion 46b is provided is formed in an arc shape along the periphery of the second mounting receiving portion 47 having a circular hole shape, except for the portion where the locking portion 32a is formed. Further, the first closing piece 42 of the first plate part 31 is also formed so that the side provided with the side piece 42b is inclined so that the width dimension becomes smaller upward, and the side piece 42b. A part of the side opposite to the side provided with is formed in an arc shape along the peripheral edge of the first attachment receiving portion 43 having a circular hole shape.

  And the mounting bracket 20 of this 2nd Embodiment has the connection part 33 of one steel plate, for example, one steel plate punched out as shown in FIG. 6, similarly to 1st Embodiment. As shown in FIG. 7, the first plate portion 31 and the second plate portion 32 are opened at a predetermined angle θ, for example, 30 degrees, and the attachment piece portion 22 of the airbag 1 is hung around. Install. Next, the connecting portion 33 is further bent, and as shown in FIGS. 8 and 9, the first plate portion 31 and the second plate portion 32 are brought into close contact with each other, and further, the respective locking receiving portions 31a and 31b. The mounting portions 20 are attached to the airbag 1 by bending and crimping the locking portions 32a and 32b inserted into the airbag 1.

  Further, in FIGS. 4 and 5 of the second embodiment, how to hang the attachment piece 22 different from that in FIG. 1 is shown by a two-dot chain line. That is, in the first embodiment, both the first insertion support portion 41 and the second insertion support portion 45 are inserted inside the loop-shaped attachment piece portion 22 of the airbag 1. In this embodiment, one of the insertion support portions 41 and 45 is inserted inside the attachment piece portion 22 to constitute the insertion support portion 51. Further, the base fabric constituting the attachment piece 22 is hung on the upper side of the other insertion support portion 41, 45, that is, the opening 55 is inserted.

  Then, according to how the mounting piece portion 22 is laid, the base fabric constituting the mounting piece portion 22 is sandwiched between the insertion support portions 41 and 45 so as to stably support the shaking. it can. Also, regarding the shape of the mounting bracket 20, if the work of inserting both the first insertion support portion 41 and the second insertion support portion 45 into the inside of the attachment piece portion 22 is not easy or difficult, Depending on how the mounting piece 22 is laid, workability can be improved and manufacturing costs can be reduced. It should be noted that the manner in which the mounting piece portion 22 is hung can also be applied to the first embodiment described above and the following embodiments. Moreover, about this 2nd Embodiment, the attachment piece part 22 can also be hung around like the 1st Embodiment.

  Next, a third embodiment will be described with reference to FIGS.

  Note that the airbag 1 and the vehicle body 3 have the same configurations as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.

  In the third embodiment, a mounting bracket 120 as an airbag mounting tool includes a first plate portion 131, a second plate portion 132, and the first plate portion 131 and the second plate portion. And a connecting portion 133 which is integrally connected to 132 and forms a deforming portion which is a plastically deforming portion. The first plate portion 131 can also be called a main plate, and includes a first insertion support portion 141, a first closing piece portion 142 constituting a deformation portion that is a plastic deformation portion, and a first attachment receiving portion. 143 is provided. The second plate portion 132 can also be referred to as a folded plate, and includes a second insertion support portion 145, a second closing piece portion 146 that constitutes a deformation portion that is a plastic deformation portion, and a second attachment receiver. A portion 147 is provided. Then, as shown in FIG. 10 (c), the first insertion support portion 141 and the second insertion portion 133 are bent with the connecting portion 133 bent and the first plate portion 131 and the second plate portion 132 overlapped. An insertion support portion 151 that supports the airbag 1 is configured by the insertion support portion 145, and a closing support portion 152 that is supported on the vehicle body 3 side by the first closing piece portion 142 and the second closing piece portion 146 is formed. The first attachment receiving portion 143 and the second attachment receiving portion 147 form an attachment receiving portion 153 that is another component attachment hole and a bolt attachment hole, and the insertion support portion 151 and the closing support portion 152 A substantially square-shaped opening 155 is formed between the two.

  More specifically, as shown in FIG. 11, the first insertion support portion 141 of the first plate portion 131 has a vertical plate shape whose longitudinal direction is the front-rear direction, and the upper edge portion in the longitudinal direction. A connecting portion 133 is integrally extended along. The first closing piece 142 is integrally connected to the mounting plate 142a facing above the first insertion support 141, and the mounting plate 142a and one end of the first insertion support 141. Side piece 142b. The mounting plate portion 142a is formed with a circular hole-shaped first mounting receiving portion 143 at a substantially central portion. Further, claw-like locking portions 131a and 131b are integrally projected from the upper end portion of the mounting plate portion 142a so as to be folded down toward the second plate portion 132 side. Yes. Further, from the upper end portion of the mounting plate portion 142a, a claw-shaped positioning portion 131c that is longer than the locking portions 131a and 131b is integrally protruded and is higher than the locking portions 131a and 131b. It is bent so as to fall to the opposite side of the second plate portion 132 at the position.

  The second insertion support portion 145 of the second plate portion 132 has a vertical plate shape whose longitudinal direction is the front-rear direction, and the connecting portion 133 is integrally extended along the longitudinal direction at the lower edge portion. Has been. The second closing piece 146 includes a mounting plate portion 146a facing below the second insertion support portion 145 (upward with the connecting portion 133 bent), and the mounting plate portion 146a and the second insertion portion 146a. A side piece 146b that integrally connects the other end of the support portion 145 is provided. The mounting plate portion 146a is formed with a second mounting receiving portion 147 having a hole shape in a substantially central portion, and below the second mounting receiving portion 147 (the connection portion 133 is bent). In the upper side, rectangular hole-shaped locking receiving portions 132a and 132b are formed. The diameter of the second attachment receiving portion 147 is formed larger than the diameter of the first attachment receiving portion 143. Further, the side piece portion 146b constitutes a connecting portion, is bent in a crank shape, has a mounting plate portion 146a parallel to the second insertion support portion 145, and a plate material constituting the mounting bracket 120. It is possible to displace the sheet by a dimension about three times the plate thickness.

  Next, the process of attaching the attachment bracket 120 to each attachment piece 22 of the airbag 1 will be described.

  The mounting bracket 120 is punched from the plate material, and as shown in FIG. 11, the locking portions 131a and 131b and the positioning portion 131c are bent 90 degrees in a predetermined direction, and the connecting portion 133 is folded 180 degrees. In this state, as shown in FIGS. 12 and 13, there is a gap between the first plate portion 131 and the second plate portion 132 due to the shape of the side piece 146 b of the second plate portion 132. In other words, it is in a state of being opened and bent in a generally U shape upward.

  Then, the mounting work of the mounting bracket 120 to the mounting piece portion 22 is performed between the first plate portion 131 and the second plate portion 132 of the mounting bracket 120 as shown in FIGS. 10 (a) and 10 (b). Insert the base fabric of the mounting piece portion 22 into the gap between them, and rotate the mounting bracket 120 relative to the mounting piece portion 22 while supporting the mounting piece portion 22 in the second insertion of the second plate portion 132. The mounting piece 22 is inserted between the first insertion support portion 141 of the first plate portion 131 and the first closing piece portion 142 simultaneously with the insertion between the portion 145 and the second closing piece portion 146. To do. From this state, the side piece portion 146b of the mounting bracket 20 is further bent so as to close the open portion, and the first plate portion 131 and the second plate portion 132 are brought into contact with each other to constitute the mounting bracket 120. . In this state, the insertion support portion 151 of the mounting bracket 120 is inserted into and locked in the loop-shaped mounting piece portion 22, and the mounting piece portion 22 is locked in the opening 155 of the mounting bracket 120. 120 is attached to the attachment piece 22 so as not to be detached. That is, in this state, the periphery of the opening 155 of the mounting bracket 120 is surrounded and closed by the first plate portion 131 and the second plate portion 132, and the claw-like locking portions 131a and 131b are further closed. Inserted into the locking receiving portions 132a and 132b, the mounting piece portion 22 is held so as not to be detached from the opening portion 155. Further, by bending each of the locking portions 131a and 131b and locking the first plate portion 131 and the second plate portion 132, it is ensured that the attachment piece portion 22 does not come off from the opening 155. Retained.

  In this embodiment, a claw-shaped positioning portion 131c is integrally projected from the upper end portion of the mounting plate portion 142a of the first plate portion 131 and bent to the opposite side of the second plate portion 132. However, the claw-shaped positioning portion 131c may be provided at the upper end portion of the mounting plate portion 146a of the second plate portion 132 and bent to the opposite side of the first plate portion 131. In this case, the diameter of the second attachment receiving portion 147 is the same as the diameter of the first attachment receiving portion 143, or the diameter of the second attachment receiving portion 147 is the same as that of the first attachment receiving portion 143. Form smaller than the diameter. Further, the mounting bracket 120 does not form the claw-shaped locking portions 131a and 131b and the locking receiving portions 132a and 132b into which the claw-shaped locking portions 131a and 131b are inserted, thereby simplifying the structure. You can also Further, the mounting bracket 20 does not form the locking portions 131a and 131b and the locking receiving portions 132a and 132b, and the first plate portion 131 and the second plate portion 132 have the same shape to simplify the configuration. You can also

  The operation of arranging the airbag device 2 along the vehicle body panel 15 and attaching the airbag device 2 to the vehicle body 3 is performed by first positioning the positioning portion 131c of the mounting bracket 120 with the vehicle body panel 15 along the vehicle body panel 15. It is inserted into the positioning receiving part of the panel 15 and aligned and temporarily fixed. In this state, the shaft portion of the bolt 50 is inserted into the mounting receiving portion 153 of the mounting bracket 120 from the inside of the vehicle, and is screwed into the mounting hole 15a of the vehicle body panel 15 and tightened. As a result, the first plate portion 131 and the second plate portion 132 of the mounting bracket 120 are tightened between the head of the bolt 50 and the vehicle body panel 15 so that the mounting bracket 120 is attached to the vehicle body panel 15. Fixed. That is, the airbag 1 is attached to the vehicle body panel 15 via the attachment bracket 120, and the first plate portion 131 and the second plate portion 132 are in close contact with each other, so that the attachment piece portion 22 is firmly attached to the attachment bracket 120. It will not come off.

  As described above, according to the present embodiment, the airbag device 2 such as a so-called curtain airbag device is engaged with the mounting bracket 120 on the loop-shaped mounting piece portion 22 that is an ear portion provided on the airbag 1. By a simple operation of bending the piece 146b, it is possible to realize a configuration in which the attachment piece 22 is linearly abutted by the attachment bracket 120 and supported by the upper attachment receiving portion 153, and the attachment bracket 120 is attached to the attachment piece 22 It can be easily attached so that it does not come off, making assembly work easier and reducing manufacturing costs.

  That is, the mounting bracket 120 can be held so as not to be detached from the mounting piece portion 22 when the airbag device 2 is transported or attached to the vehicle body 3.

  In addition, the mounting bracket 120 is obtained by simply bending the connecting portion 133 and the side piece portion 146b that connect the first plate portion 131 and the second plate portion 132 formed of one metal plate, The opening 155 whose periphery is closed so as to hold the mounting piece 22 can be formed, and the number of parts can be reduced, thereby reducing the manufacturing cost.

  In addition, the mounting bracket 120 has a substantially symmetrical shape when viewed from the side when it is attached to the vehicle body 3, so that the load applied to each part of the mounting bracket 120 when the airbag 1 is deployed is evenly distributed. it can. Further, the insertion support portion 151 of the mounting bracket 120 is a two-layer metal plate, and a load is equally applied to both the first plate portion 131 and the second plate portion 132. Therefore, compared to a configuration in which a load is applied to only one plate, the strength can be easily improved, the thickness of the plate material constituting the mounting bracket 120 can be reduced, and the manufacturing cost can be reduced.

  Further, in the third embodiment, the connecting portion 133 is arranged along the longitudinal direction of the opening 155 side along the longitudinal direction of the first insertion support portion 141 and the longitudinal direction of the second insertion support portion 145. In order to connect the edge on the opening 155 side, the bent portion of the connecting portion 133 faces the opening 155 along the longitudinal direction of the insertion support portion 151, and the curved surface of the connecting portion 133 is attached to the attachment piece portion of the airbag 1. When the airbag 1 is deployed, the metal edge of the mounting bracket 120 is not pressed against the fabric mounting piece 22 and receives a force over a wide area, thereby protecting the mounting piece 22 of the airbag 1. . In addition, by bending the connecting portion 133, the portion that forms the first insertion support portion 141 and the second insertion support portion 145 becomes the opening portion 155. Therefore, the manufacturing cost can be reduced by using the material effectively. Can be reduced.

  Next, a fourth embodiment will be described with reference to FIG.

  Note that the airbag 1 and the vehicle body 3 have the same configurations as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.

  In the fourth embodiment, a mounting bracket 220 as an airbag mounting tool includes a first plate portion 231, a second plate portion 232, and the first plate portion 231 and the second plate portion. 232 are integrally connected to each other to form a deformation portion that is a plastic deformation portion. The first plate portion 231 can also be called a main plate, has a substantially rectangular plate shape, and includes a first insertion support portion 241, a first closing piece portion 242, and a deformation portion that is a plastic deformation portion. And the 1st attachment receiving part 243 is provided. The second plate portion 232 can also be called a folded plate, has a substantially rectangular plate shape that is substantially the same shape as the first plate portion 231, and forms a second insertion portion that constitutes a deformation portion that is a plastic deformation portion. A support portion 245, a second closing piece portion 246, and a second attachment receiving portion 247 are provided. Then, as shown in FIG. 14 (d), the connecting portion 233 is bent and the airbag 1 is moved by the first insertion support portion 241 in a state where the first plate portion 231 and the second plate portion 232 are overlapped. An insertion support portion 251 for supporting the vehicle body is formed, and a closing support portion 252 supported on the vehicle body 3 side is formed by the first closing piece portion 242 and the second closing piece portion 246, and the first attachment receiving portion 243 is formed. And the second mounting receiving portion 247 form an attachment receiving portion 253 which is another component mounting hole and a bolt mounting hole, and is surrounded by the insertion support portion 251 and the closing support portion 252, and has a substantially rectangular shape. An opening 255 is formed.

  More specifically, the first insertion support portion 241 of the first plate portion 231 has a vertical plate shape whose longitudinal direction is the front-rear direction. The first closing piece 242 is integrally connected to the mounting plate portion 242a facing the upper side of the first insertion support portion 241 and the mounting plate portion 242a and one end portion of the first insertion support portion 241. Side piece portion 242b. The mounting plate portion 242a is formed with a circular hole-shaped first mounting receiving portion 243 on the upper side of the substantially central portion. A connecting portion 233 is integrally formed along the entire length of one side portion of the first insertion support portion 241 from the first closing piece portion 242 of the first plate portion 231. Furthermore, it is located at the other end portion of the first insertion support portion 241, that is, the upper portion near the tip portion, and the notch portion formed at the upper corner portion of the other end portion of the mounting plate portion 242 a, and has a claw-like engagement. Stop portions 231a and 231b are integrally projected toward the upper side and bent so as to be tilted toward the second plate portion 232 side.

  Further, the second insertion support part 245 of the second plate part 232 has a vertical plate shape with the front-rear direction as the longitudinal direction. The second closing piece 246 integrally connects the mounting plate portion 246a facing above the second insertion support portion 245 and the both ends of the attachment plate portion 246a and the second insertion support portion 245. A pair of side piece portions 246b, 246b. That is, in the fourth embodiment, unlike the other embodiments, both ends of the second insertion support portion 245 are closed, and an opening 245a whose outer periphery is closed above the second insertion support portion 245. The second insertion support part 245 is formed and cannot be inserted into the attachment piece part 22 of the airbag 1. In addition, the mounting plate portion 246a is formed with a second mounting receiving portion 247 having a circular hole at the upper portion of the substantially central portion. The diameter size of the second mounting receiving portion 247 is equal to the diameter size of the first mounting receiving portion 243, or the diameter size of the second mounting receiving portion 247 is the diameter of the first mounting receiving portion 243. It is formed larger than the dimension. A connecting portion 233 is integrally formed along the entire length of one side portion of the second insertion support portion 245 from the second closing piece portion 246 of the second plate portion 232. Further, the second closing piece 246 is formed with rectangular hole-shaped locking receiving portions 232a and 232b corresponding to the positions of the locking portions 231a and 231b of the first plate portion 231.

  And in this 4th Embodiment, since the both ends of the 2nd insertion support part 245 are closed, the process of attaching each attachment bracket 220 to each attachment piece part 22 of the airbag 1 is 2nd. This is the same as that described in the embodiment. That is, as shown in FIG. 14A, with the first plate portion 231 and the second plate portion 232 slightly opened, as shown in FIG. 14B, the second insertion support portion 245 is formed. The attachment piece portion 22 of the airbag 1 is inserted into the upper opening 245a from the opposite side of the first plate portion 231. Then, as shown in FIG. 14 (c), the attachment piece portion 22 inserted into the opening 245a is hooked on the first insertion support portion 241, that is, the first insertion support portion is attached to the attachment piece portion 22 inserted into the opening 245a. Insert 241. Next, the connecting portion 233 of the mounting bracket 220 is bent so as to close the opened portion, the first plate portion 231 and the second plate portion 232 are brought into contact with each other, and further inserted into the locking receiving portions 232a and 232b. The locking portions 231a and 231b thus formed are bent and caulked to constitute the mounting bracket 220. In this configuration, similarly to the second embodiment, the base fabric constituting the attachment piece portion 22 is sandwiched between the insertion support portions 241 and 245, and the swing is suppressed and stably supported. it can.

  In the fourth embodiment, since the first insertion support portion 241 and the second insertion support portion 245 constitute the deformation portion that is a plastic deformation portion that supports the attachment piece portion 22 to prevent it from coming off, One of the first closing piece 242 and the second closing piece 246 may be omitted.

  Next, a fifth embodiment will be described with reference to FIGS.

  Note that the airbag 1 and the vehicle body 3 have the same configurations as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.

  In the fifth embodiment, a mounting bracket 320 as an airbag mounting tool includes a first plate portion 331, a second plate portion 332, and the first plate portion 331 and the second plate portion. A connecting portion 333 that constitutes a deforming portion that is a plastically deforming portion that integrally connects the 332 and the 332 is formed by a single metal plate so as to be bendable. The first plate portion 331 can also be called a main plate, has a substantially rectangular plate shape, and is provided with an insertion support portion 341, a first closing piece portion 342, and a first attachment receiving portion 343. . The second plate portion 332 can also be called a folded plate, has a substantially rectangular plate shape smaller than the first plate portion 331, and is overlapped on the vehicle interior side of the first closing piece portion 342. A closing piece portion 346 and a second attachment receiving portion 347 are provided. Then, as shown in FIGS. 15 to 17, the first closing piece 342 and the second closing portion 342 are bent in the state where the connecting portion 333 is bent and the first plate portion 331 and the second plate portion 332 are overlapped. A closing support portion 352 that is supported on the vehicle body 3 side is formed by the closing piece portion 346, and the first attachment receiving portion 343 and the second attachment receiving portion 347 are other component attachment holes and bolt attachment holes. A receiving portion 353 is formed, and a substantially rectangular opening 355 is formed surrounded by the insertion support portion 341 and the closing support portion 352.

  More specifically, the insertion support portion 341 of the first plate portion 331 has a vertical plate shape whose longitudinal direction is the front-rear direction, and the upper edge portion is folded back to the second plate portion 332 side to open the opening portion. A curved airbag facing portion 341a is formed facing 355. The first closing piece 342 includes a first mounting plate portion 342a that is opposed to the insertion support portion 341 and forms a deformation portion that is a plastic deformation portion, and the first mounting plate portion 342a and the insertion support. A first side piece portion 342b that integrally connects one end portion of the portion 341. That is, the first side piece portion 342b is elongated and integrally protrudes from one end portion of the insertion support portion 341 upward. A circular hole-shaped first attachment receiving portion 343 is formed on the first attachment plate portion 342a. Further, the first mounting plate portion 342a is formed with a cutout portion 342c serving as a receiving portion at the upper edge of the first mounting receiving portion 343.

  Further, from the other end of the insertion support portion 341, the second side piece 346b is elongated and integrally protrudes along the outer edge of the upper side of the second side piece 346b. A connecting portion 333 is formed.

  The second closing piece 346 of the second plate portion 332 includes a second mounting plate portion 346a that constitutes a deformation portion that is a plastic deformation portion. The second mounting plate portion 346a has a rectangular plate shape whose longitudinal direction is the horizontal direction, and one end portion in the longitudinal direction is integrally connected to the connecting portion 333. That is, in the fifth embodiment, unlike the other embodiments, the insertion support portion is not formed in the second plate portion 332, that is, the second closing piece portion 346. The second mounting plate portion 346a is formed with a circular second mounting receiving portion 347. Further, a locking piece 346c, which is a claw-shaped bent portion, is located on the first plate portion 331 side, corresponding to the position of the notch portion 342c, located at the upper edge of the second attachment receiving portion 347. It is bent and protruded so as to be tilted to the vehicle body side. The locking piece 346c and the cutout portion 342c constitute a retaining portion 360 that prevents the attachment piece portion 22 of the airbag 1 from coming off.

  And in this 5th Embodiment, the process which attaches each attachment bracket 320 to each attachment piece part 22 of the airbag 1 is a 1 iron plate, for example, as shown in FIG. The connecting portion 333 of the steel plates is bent by a predetermined angle, and the airbag facing portion 341a is bent to form the product form shown in FIGS. In this product form, the first plate portion 331 and the second plate portion 332 are separated from each other by a predetermined dimension, and the locking piece 346c and the notch portion 342c are separated from each other by a dimension L3. It has become. That is, the front end portion of the locking piece 346c is opposed to the inner surface of the first closing piece portion 342 with a small distance L3, and the attachment piece portion 22 of the airbag 1 is opened through this gap. Inserted into the portion 355 and hooked onto the insertion support portion 341.

  Next, as shown in FIGS. 15 to 17, the connecting portion 333 is completely bent so that the first plate portion 331 and the second plate portion 332 are brought into close contact with each other, and the locking piece 346c is formed in the notch portion 342c. insert. In this state, as shown in FIG. 16, the protrusion dimension L1 of the locking piece 346c is larger than the thickness dimension of the plate material of the first closing piece part 342, that is, the first plate part 331, and as shown in FIG. In addition, since the position of the upper edge of the locking piece 346c is set to be lower by the dimension L2 than the position of the upper edge of the first closing piece 342, that is, the first plate 331, FIG. Even before the first plate portion 331 and the second plate portion 332 are fastened and fixed to the vehicle body panel 15 constituting the attached member by the bolt 50 shown in FIG. It is possible to prevent accidental departure from 22.

  In this state, the airbag device 2 including the airbag 1 is arranged along the vehicle body panel 15 and includes a first attachment receiving portion 343 and a second attachment receiving portion 347 that communicate with each other. The shaft portion of the bolt 50 is inserted into the attachment receiving portion from the inside of the vehicle, that is, from the second attachment receiving portion 347 side of the second plate portion 332, and is screwed into the attachment hole 15a of the vehicle body panel 15 and tightened. Then, the first plate portion 331 and the second plate portion 332 of the mounting bracket 320 are tightened between the head of the bolt 50 and the vehicle body panel 15 so that the mounting plate 320 is attached to the vehicle body panel 15. Is fixed. That is, the airbag 1 is attached to the vehicle body panel 15 via the attachment bracket 320, and the first plate portion 331 and the second plate portion 332 are in close contact with each other, so that the attachment piece portion 22 is firmly attached to the attachment bracket 320. It will not come off.

  In the fifth embodiment, the mounting piece 22 inserted into the insertion support portion 341 can be prevented from coming off by the closing support portion 352, and the mounting bracket 320 can be easily attached to the airbag 1 in the fifth embodiment. It can be attached to the attachment piece portion 22. Further, with respect to the members constituting the mounting bracket 320, the shape is simplified, and the portions that are folded together are divided into the second mounting plate portion 346a of the second closing piece portion 346 and the first portion of the first closing piece portion 342. By using only one part of the mounting plate part 342a and the second side piece part 346b, it is possible to reliably hold the loop-shaped mounting piece part 22 of the airbag 1 and to reduce the weight and reduce the workability. Improvement and reduction of manufacturing cost can be easily realized.

  In the fifth embodiment, the retaining portion 360 constituted by the locking piece 346c and the notch portion 342c is replaced with the upper edge portion of the mounting bracket 320, that is, the first closing piece portion 342 and the second closing piece. Although provided at the upper edge of the portion 346, the configuration is not limited to this. For example, as shown in FIG. 21, the retaining portion 360 constituted by the locking piece 346c and the notch portion 342c is replaced with the side edge of the mounting bracket 320, that is, the first closing piece portion 342 and the second closing piece. You may provide in the edge of the side part of the part 346. FIG. Further, as shown in FIG. 22, the retaining portion 360 constituted by the locking piece 346c and the notch portion 342c faces the opening 355, and is below the first closing piece portion 342 and the second closing piece portion 346. It may be provided on the side edge.

  In each of the above embodiments, the deforming portion is configured to plastically deform the metal plate, but is not limited to plastic deformation having no reaction force at all, and may be configured to elastically deform having a reaction force. . That is, at the time of final fixing of the vehicle body, it is necessary to be firmly fixed by the bolt 50 which is a fixture and a fastening tool. For example, in the operation of inserting the attachment piece 22 of the airbag 1, It can also be opened and closed somewhat elastically.

  Further, in each of the embodiments described above, the airbag 1 is not limited to the configuration in which the front seat protection portion and the rear seat protection portion are connected by the communication portion and the gas inlet is provided at the rear end portion, and various forms are possible. Can be taken. For example, it is possible to provide a gas introduction port that is located at the upper center of the airbag main body and communicates the inflating portion 27 with the outside.

  The present invention is not limited to a configuration that extends from the upper side to the lower side and covers the side window portion of the automobile, and can be applied to an appropriate airbag device that needs to be inflated and deployed in a planar shape along a predetermined surface. .

It is explanatory drawing of the assembly process which shows 1st Embodiment of the fixture for airbags of this invention, and an airbag apparatus. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is a perspective view which shows 2nd Embodiment of the attachment tool for airbags of this invention. It is a perspective view of the fixture for airbags same as the above. It is a side view which shows the manufacturing process of the fixture for airbags same as the above. It is a top view which shows the manufacturing process of the fixture for airbags same as the above. It is a side view which shows the manufacturing process of the fixture for airbags same as the above. It is an end view which shows the manufacturing process of the fixture for airbags same as the above. It is explanatory drawing of the assembly process which shows 3rd Embodiment of the fixture for airbags of this invention, and an airbag apparatus. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is explanatory drawing of the assembly process which shows 4th Embodiment of the fixture for airbags of this invention, and an airbag apparatus. It is a side view which shows 5th Embodiment of the fixture for airbags of this invention, and an airbag apparatus. It is II sectional drawing of FIG. 15 of the fixture for airbags same as the above. It is the end elevation seen from the direction of arrow II of Drawing 15 of the fixture for airbags same as the above. It is a side view which shows the manufacturing process of the fixture for airbags same as the above. It is a perspective view which shows the manufacturing process of the fixture for airbags same as the above. It is the end elevation seen from the direction of arrow III of Drawing 19 of the fixture for airbags same as the above. It is a side view which shows other embodiment of the fixture for airbags same as the above. It is a side view which shows other embodiment of the attachment tool for airbags same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air bag 2 Air bag apparatus
15 Car body panels that make up the mounted member
20, 120, 220, 320 Mounting bracket as an airbag attachment
22 Mounting piece
27 Expansion part
31, 131, 231 First plate
32, 132, 232 Second plate
33, 133, 233, 333 Connecting part constituting the deformed part
41, 141 first insertion support
42,142 First closing piece portion constituting the deformed portion
43, 143, 243, 343 First mounting receiver
45,145 Second insertion support
46,146 Second closing piece portion constituting the deforming portion
47, 147, 247, 347 Second mounting receiver
51, 151, 251, 341 Insertion support
52, 152, 252, 352 Closure support
53, 153, 253, 353 Mounting bracket
55, 155, 255, 355 opening
241 1st insertion support part which constitutes a deformation part
242 and 342 First closing piece
245 Second insertion support part constituting the deformation part
246,346 Second closing piece
342a First mounting plate portion constituting the deformation portion
342b First side piece
346a Second mounting plate portion constituting the deformation portion
346b Second side piece

Claims (7)

An airbag mounting tool attached to a loop-shaped mounting piece provided in an airbag,
A closing support portion provided with an attachment receiving portion attached to the attached member;
An insertion support part that is continuous with the closing support part and is inserted inside the loop-shaped attachment piece part;
Continuously connected to at least one of the closing support part and the insertion support part, deformed in the opening / closing direction, and allowed to insert the attachment piece part into the insertion support part in the open state, and the insertion support part in the closed state And a deforming portion for preventing the mounting piece portion from coming off. The closing support portion includes a closing piece portion that extends from both end sides of the insertion support portion and that the front end sides face each other so as to be separated from each other.
It is configured to be surrounded by the insertion support portion and the closing support portion, and includes an opening portion through which the attachment piece portion can be inserted and communicated with the outside through the space between the closing piece portions in a separated state. The airbag mounting tool according to claim 1. A first plate portion including a first insertion support portion, a first closing piece portion, and a first attachment receiving portion provided on the first closing piece portion;
A second insertion support portion overlaid on the first insertion support portion, a second closing piece portion partially overlaid on the first closing piece portion, and a second overlaid on the first attachment receiving portion. A second plate portion provided with an attachment receiving portion;
The airbag mounting device according to claim 2, further comprising a bent connecting portion that integrally connects the first plate portion and the second plate portion. The connection part connects the one end part of the 1st penetration support part, and the one end part of the 2nd penetration support part. The attachment tool for airbags according to claim 3 characterized by things. The connecting portion connects the edge on the opening side along the longitudinal direction of the first insertion support portion and the edge on the opening side along the longitudinal direction of the second insertion support portion. The airbag attachment tool according to claim 3. It is provided with a closing support part that is continuous at both ends of the insertion support part,
This closing support is
A first side piece projecting continuously from one end of the insertion support;
A first mounting plate portion continuous to the distal end side of the first side piece portion;
A first attachment receiving portion provided on the first attachment plate portion;
A second side piece projecting continuously from the other end of the insertion support,
A connecting portion that constitutes a deformed portion that is continuously bent on the distal end side of the second side piece portion;
A second mounting plate portion continuous with the connecting portion;
A second attachment receiving portion provided on the second attachment plate portion,
The second mounting plate portion is overlapped with a part of the first mounting plate portion and opposed to be separated from each other, and the second mounting receiving portion and the first mounting receiving portion are stacked,
It is configured to be surrounded by the insertion support portion and the closing support portion, and includes an opening portion through which the attachment piece portion can be inserted and communicated with the outside through the space between the attachment plate portions in a separated state. The airbag mounting tool according to claim 1. An airbag provided with an inflatable portion and a loop-shaped attachment piece portion into which gas is introduced and deployed;
The airbag device according to any one of claims 1 to 6, wherein the airbag device is attached to the attachment piece.

Images