CN111703394A - Temporary fixing structure of airbag device - Google Patents
Temporary fixing structure of airbag device Download PDFInfo
- Publication number
- CN111703394A CN111703394A CN202010084198.1A CN202010084198A CN111703394A CN 111703394 A CN111703394 A CN 111703394A CN 202010084198 A CN202010084198 A CN 202010084198A CN 111703394 A CN111703394 A CN 111703394A
- Authority
- CN
- China
- Prior art keywords
- locking
- base
- airbag device
- temporary
- fixing structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Connection Of Plates (AREA)
Abstract
The invention provides a temporary fixing structure of an airbag device, which can perform temporary fixing to a vehicle body more simply than before. The temporary holding claw of the temporary fixing structure of the airbag device of the present invention includes: a base portion protruding from an airbag device side; a first locking portion bent from the base and extending obliquely upward; and a second locking portion that protrudes from the base portion on the opposite side of the protruding direction of the first locking portion, wherein the total distance between the distance from the apex of the first locking portion to the center line of the base portion and the distance from the apex of the second locking portion to the center line of the base portion is longer than the opening width of the locking hole, and the total distance between the protruding length of the second locking portion from the base portion and the width of the base portion is shorter than the opening width of the locking hole.
Description
Technical Field
The present invention relates to a temporary fixing structure of an air bag (airbag) device in a vehicle.
Background
Conventionally, a structure having a locking claw is known as a temporary fixing structure of an airbag device that deploys in a curtain (curve) shape from an upper portion of a side wall of a vehicle roof (see, for example, patent document 1).
The retaining claws temporarily fix the airbag device to the inner panel until the airbag device is finally fastened to the inner panel of the roof rail.
In the above-described temporary fixing structure, the latching claws protrude from the airbag device (inflator holding portion) side so as to correspond to a pair of latching holes provided at a predetermined interval in the front-rear direction on the inner panel (inner panel) side of the roof side rail (roof side rail).
Specifically, the pair of locking holes are formed in a slit shape that is long in the vertical direction and are arranged in parallel in the front-rear direction. Each of the locking claws is formed of a bent plate body inserted into a slit of the locking hole.
In the pair of locking claws, the front end of the rear locking claw is bent rearward in an L-shape on the back side of the inner plate. Thus, the plate surface of the engaging claw at the bent tip abuts against the back surface of the inner plate. That is, the rear-side locking claw is brought into contact with the rear surface of the inner panel by the plate surface of the bent front end, and thereby mainly bears a temporary holding function of temporarily holding the airbag device (gas generator holding portion) with respect to the inner panel.
In the pair of locking claws, the front end of the front locking claw is bent downward in an L shape on the back side of the inner plate.
The engagement claw inserted to the front side of the engagement hole is engaged with the engagement hole by the weight of the airbag device (gas generator holding portion). That is, the engagement claw on the front side mainly bears the anti-drop function of the airbag device (gas generator holding portion) of the inner panel.
[ Prior art documents ]
[ patent document ]
Patent document 1: japanese patent No. 5806713
Disclosure of Invention
[ problems to be solved by the invention ]
When the airbag device (inflator holding portion) is temporarily fixed to the inner panel by the engagement claw, the rear engagement claw is first fitted into the rear engagement hole. Thus, the bent front end of the rear locking claw is disposed on the back side of the inner panel. Then, the front side locking claw is moved closer to the upper side of the front side locking hole, and the downward bent front end is fitted into the locking hole. At this time, the front locking claw is fitted into the front locking hole by rotating the gas generator holding portion around the rear locking claw.
However, in such a conventional temporary fixing structure (for example, see patent document 1), there is a demand for: by providing the temporary holding claw in which the temporary holding function and the drop-off prevention function are integrated into one shape, it is possible to more easily perform temporary fixation of the airbag device to the vehicle body without requiring a turning operation of the airbag device (gas generator holding portion).
Accordingly, an object of the present invention is to provide a temporary fixing structure of an airbag device, which can perform temporary fixing of a vehicle body more easily than before.
[ means for solving problems ]
The temporary fixing structure of an airbag device of the present invention that solves the above-described problems has a temporary holding claw that is inserted into an engagement hole formed in a vehicle body side, and the temporary holding claw of the temporary fixing structure of an airbag device has: a base portion protruding from the airbag device side; a first locking portion bent from the base and extending obliquely upward; and a second locking portion that protrudes from the base portion on the opposite side of the protruding direction of the first locking portion, wherein the total distance between the distance from the apex of the first locking portion to the center line of the base portion and the distance from the apex of the second locking portion to the center line of the base portion is longer than the opening width of the locking hole, and the total distance between the protruding length of the second locking portion from the base portion and the width of the base portion is shorter than the opening width of the locking hole.
[ Effect of the invention ]
According to the temporary fixing structure of the airbag device of the present invention, the temporary fixing of the vehicle body can be performed more easily than before.
Drawings
Fig. 1 is a structural explanatory view of an airbag device having a temporary fixing structure according to an embodiment of the present invention.
Fig. 2 is a partial perspective view of the periphery of the gas generator in the airbag device of fig. 1.
Fig. 3(a) is a perspective view of the fixing bracket attached to the gas generator as viewed from the vehicle interior side, and fig. 3(b) is a perspective view as viewed from the vehicle exterior side.
Fig. 4 is a plan view of the temporary holding claw as viewed from the arrow IV direction of fig. 3 (b).
Fig. 5(a) to 5(c) are explanatory views of the process when the temporary holding claw is inserted into the locking hole provided on the vehicle body side.
Fig. 6(a) to 6(c) are explanatory views of the operation of the temporary holding claw after the temporary holding claw is inserted into the locking hole provided on the vehicle body side.
Fig. 7 is a state diagram of the temporary holding claw at the time of final fastening of the airbag device to the vehicle body.
Description of the symbols
1: fixing bracket
2: temporary holding claw
3: air bag body
5: gas generator
7a 1: locking hole
7: roof rail
7 a: inner plate of roof rail (side wall upper part)
9: upper part of the side wall
11: supporting part
12: fastening part
12 b: abutting edge of fixed bracket (abutting part)
21: base for temporary holding claw
22: first engaging part of temporary holding claw
23: second locking part of temporary holding claw
A: airbag device
D1: the total distance between the distance D3 and the distance D4
D2: the total distance between the extension length of the second locking part and the width of the base
D3: distance from apex of the first engagement portion to center line of the base
D4: distance of vertex of the second clamping part from central line of the base part
L: center line of the base
S: temporary fixing structure of airbag device
V1: apex of the first engaging part
V2: vertex of the second engaging part
W1: opening width of the locking hole
W2: width of the base
Detailed Description
Next, a temporary fixing structure of an airbag device according to an embodiment (present embodiment) of the present invention will be described in detail with reference to the drawings as appropriate.
In the present embodiment, a description will be given taking as an example a configuration in which an airbag device in which an airbag deploys in a curtain shape is temporarily fixed to an upper portion of a side wall of a vehicle body.
The temporary fixing structure of the airbag device according to the present embodiment is mainly characterized in that the temporary holding claw is configured to extend from the airbag device side and to be inserted into a locking hole formed in an upper portion of a side wall of a vehicle body.
Specifically, the temporary holding claw has a base portion protruding from the airbag device side, and a first engaging portion and a second engaging portion branching from the base portion and further protruding, as will be described in detail later.
Hereinafter, the general structure of the airbag device will be described, and then the temporary fixing structure of the airbag device will be described. The airbag devices in the present embodiment are disposed on the left and right sides of the vehicle body. Since these airbag devices have a symmetrical structure with respect to the vehicle body center axis, only the airbag device on the left side will be described in the present embodiment. The vertical, front, rear, left and right directions in the following description correspond to the vertical, front, rear, left and right directions of the vehicle body. In the following description, the left direction indicates the vehicle outside, and the right direction indicates the vehicle inside.
< overall Structure of airbag device >
Fig. 1 is a diagram illustrating a structure of an airbag device a having a temporary fixing structure S according to the present embodiment. Fig. 2 is a partial perspective view of the periphery of the gas generator 5 in the airbag device a of fig. 1. In fig. 1, the airbag main body 3 after deployment is shown by a phantom line (two-dot chain line). In fig. 1 and 2, for convenience of drawing, a roof lining (roof lining) portion disposed on a vehicle compartment side (front side in the drawing) of a roof side rail (roof side rail)7 so as to cover the airbag device a is omitted.
As shown in fig. 1, the airbag apparatus a is configured such that the folded airbag main body 3 (bag body) is disposed on a side wall upper portion 9 of a vehicle body from a front pillar (front pillar)6 to an upper portion of a rear pillar (rear pillar)8 through a roof side rail 7.
The airbag device a includes: an airbag body 3; a gas generator 5 that supplies high-pressure gas to the airbag body 3; a fixing bracket 1 fixed to a side wall upper portion 9 of a vehicle body, specifically, to a roof side rail 7; and a temporary holding claw 2 (see fig. 2).
When an impact of a predetermined value or more is input to the vehicle body, the airbag main body 3 deploys in a curtain shape on the side portion in the vehicle interior. The folded airbag body 3 has a plurality of fixing portions 3a to the sidewall upper portion 9.
The gas generator 5 is formed in a cylindrical shape. The gas generator 5 is disposed substantially at the center in the front-rear direction of the roof side rail 7 so as to extend in the front-rear direction of the roof side rail 7.
The gas generator 5 in the present embodiment is attached to the upper portion of the airbag main body 3 via the connecting member 4. The gas generator 5 is not shown, but its gas supply port is connected to a gas introduction portion of the airbag main body.
Next, the fixing bracket 1 will be explained.
As shown in fig. 1, the fixing bracket 1 in the present embodiment is disposed such that a plurality of (two in the present embodiment) fixing brackets are arranged along the front-rear direction of the gas generator 5, that is, the longitudinal direction of the gas generator 5.
As shown in fig. 2, the fixing bracket 1 includes: a support portion 11 of the gas generator 5; and a fastening portion 12 formed integrally with the support portion 11, for fastening the gas generator 5 to the inner plate 7a with a screw B. As will be described later, an insertion hole 7a2 for the screw B is formed in the inner plate 7a (see fig. 7).
In fig. 2, reference numeral 7a1 denotes a locking hole into which the temporary holding claw 2 described in detail below is inserted, and reference numeral 4 denotes the above-described coupling member that couples the airbag main body (not shown) and the inflator 5.
Fig. 3(a) is a perspective view of the fixing bracket 1 attached to the gas generator 5 as viewed from the vehicle interior side (front side of the paper of fig. 3 (a)). Fig. 3(b) is a perspective view of the fixing bracket 1 attached to the gas generator 5 as viewed from the outside of the vehicle (front side of the paper of fig. 3 (b)).
As shown in fig. 3(a) and 3(b), the fixing bracket 1 is formed of a single substantially strip-shaped member.
As shown in fig. 3(b), the fixing bracket 1 is wound around the gas generator 5 at the center in the longitudinal direction of the belt-like member to form a support portion 11.
In the fixing bracket 1, the end portions of the belt-like members are overlapped with each other to form the fastening portion 12.
As shown in fig. 3(b), a fastening portion 13 is formed at the boundary between the support portion 11 and the fastening portion 12 to fasten the support portion 11 wound around the gas generator 5. The fastening part 13 has the following structure: the projection 13a projecting from the downward-wound belt-shaped member is fitted to the hole portion 13b formed at the corresponding position of the upward-wound belt-shaped member.
As shown in fig. 3(a), a bead 11a is formed on the downward-wound belt-like member of the support portion 11 so as to extend along the circumferential direction of the gas generator 5. The ribs 11a are formed in two rows along the longitudinal direction of the gas generator 5.
As shown in fig. 3a and 3b, the upward-wound band-shaped member of the support portion 11 is formed to have a narrower width than the downward-wound band-shaped member, except for the fastening portion 13 (see fig. 3 b). This facilitates winding of the band-shaped member around the gas generator 5 when the projection 13a is fitted into the hole 13b as shown in fig. 3 (b).
As shown in fig. 3(a) and 3(b), the fastening portion 12 of the fixing bracket 1 is substantially rectangular in plan view with the end portions of the belt-like member overlapped with each other as described above.
Further, a through hole 12a for a screw B (see fig. 2) is formed substantially at the center of the tightening portion 12. The insertion holes 12a of the two overlapping lower band-shaped members are smaller in diameter than the insertion holes 12a of the upper band-shaped member.
The fastening portion 12 has an abutment edge 12b corresponding to the lower edge of the substantially rectangular fastening portion 12. The abutment edge 12b will be described in detail later, but as shown in fig. 6(c), when the second retaining portion 23 of the temporary holding claw 2 abuts against the peripheral edge of the retaining hole 7a1, it abuts against the inner panel 7 a.
The abutting edge 12b corresponds to the "abutting portion of the fixed bracket".
As such a fixing bracket 1, a synthetic resin article such as polypropylene (polypropylene) is conceived to be integrally formed with a temporary holding claw 2 which will be described in detail later. However, the fixing bracket 1 is not limited thereto, and may be formed of another material such as a metal plate.
As shown in fig. 2, two fixing brackets 1 in the present embodiment are disposed with a predetermined gap in the longitudinal direction of the gas generator 5.
Temporary fixing Structure of airbag device
Next, a temporary fixing structure S of the airbag apparatus a to the inner panel 7a of the roof side rail 7, which is the side wall upper portion 9 of the vehicle body shown in fig. 1, will be described.
The temporary fixing structure S of the present embodiment includes a temporary holding claw 2 (see fig. 2) protruding from the fixing bracket 1 side constituting the airbag apparatus a.
As shown in fig. 2, the temporary holding claw 2 is inserted into a latching hole 7a1 formed in an inner panel 7a (a side wall upper portion 9 of the vehicle body (see fig. 1)) of the roof side rail 7.
A pair of locking holes 7a1 is provided in the front-rear direction of the inner plate 7a with a predetermined space. These stopper holes 7a1 penetrate the inner panel 7 a.
The locking holes 7a1 in the present embodiment are each formed in a vertically elongated rectangular shape in plan view. The locking holes 7a1 are arranged in parallel in the front-rear direction.
The opening width W1 of the vertically extending locking hole 7a1 corresponds to the "opening width of the locking hole".
As shown in fig. 3(b), the temporary holding claw 2 is formed of a plate body extending upward from the fixing bracket 1.
Specifically, the temporary holding claw 2 is bent upward in an L shape and extended in a middle extending rearward from a substantially center in the left-right direction of a lower one of two belt-shaped members stacked up and down in a fastening portion 12 constituting the fixing bracket 1.
Fig. 4 is a plan view of the temporary holding claw 2 as viewed from the arrow IV direction of fig. 3 (b). In fig. 4, the inner panel 7a formed with the locking hole 7a1 is also shown by a phantom line (two-dot chain line). The inner plate 7a of the virtual line is described for comparing the sizes of the temporary holding claw 2 and the locking hole 7a1, and does not show the relative positional relationship between the temporary holding claw 2 and the locking hole 7a1 of the actual temporary fixing structure S.
As shown in fig. 4, the temporary holding claw 2 includes a base 21, a first locking portion 22, and a second locking portion 23.
The base 21 extends from the fixing bracket 1 such that a center line L of the base 21 is perpendicular to a plate surface of the fastening portion 12 of the fixing bracket 1.
The base 21 extends upward to a base end portion of a first locking portion 22, which will be described later, with the same width W2.
The first locking portion 22 is bent and protruded from the front end of the base 21.
The first locking portion 22 has an angle θ 1 of extension from the center line L of the base 21 of 90 DEG or more and less than 180 DEG (90 DEG or more and θ 1 < 180 DEG) on the inner angle side. Further, the projecting angle θ 1 is desirably an obtuse angle exceeding 90 °.
Such a first locking portion 22 is in a state of protruding obliquely upward from the base 21 in a temporarily fixed state (see fig. 6 c) in which the fixing bracket 1 is temporarily fixed to an inner panel 7a described later. Specifically, the extending direction of the first locking portion 22 is along the inner panel 7a around the locking hole 7a 1.
The second locking portion 23 protrudes from the base 21 on the opposite side of the protruding direction of the first locking portion 22. Further, the base end of the second locking portion 23 is set closer to the fastening portion 12 of the fixed bracket 1 than the base end of the first locking portion 22. That is, the base end of the second locking portion 23 does not overlap (overlap) the base end of the first locking portion 22 in the extending direction of the center line L of the base 21.
The second locking portion 23 has an angle θ 2 of 90 ° (θ 2 is 90 °) with respect to the center line L of the base 21. That is, the second locking portion 23 extends parallel to the plate surface of the fastening portion 12 of the fixed bracket 1. However, the second locking portion 23 is not limited to the projecting angle θ 2 as long as it extends in the left-right direction when viewed in a plane of the temporary holding claw 2 shown in fig. 4.
As shown in fig. 4, in the temporary holding claw 2 of the present embodiment, when the apex V1 of the first locking part 22 and the apex V2 of the second locking part 23 are defined with the center line L of the base part 21 as a reference line, the total distance D1 between the distance D3 from the apex V1 to the center line L and the distance D4 from the apex V2 to the center line L is set to be longer than the opening width W1 of the locking hole 7a1 in the present embodiment.
The total distance D2 between the length of the second locking portion 23 extending from the base 21 and the width W2 of the base 21 is set shorter than the opening width W1 of the locking hole 7a1 in the present embodiment.
Further, the distance D3 between the apex V1 of the first locking portion 22 and the center line L of the base 21 is longer than the half length of the opening width W1 of the locking hole 7a 1.
The opening width W1 of the locking hole 7a1 in the present embodiment is set to a length obtained by adding a half length of the left-right width W2 of the base 21 to the distance D3 between the apex V1 of the first locking portion 22 and the center line L of the base 21 so that the first locking portion 22 can be inserted thereinto (see fig. 5 a).
Further, the distance D4 between the apex V2 of the second locking portion 23 and the center line L of the base 21 is longer than the half length of the opening width W1 of the locking hole 7a 1.
The opening width W1 of the locking hole 7a1 in the present embodiment is set to a length obtained by adding a half length of the left-right width W2 of the base 21 to the distance D4 between the vertex V2 of the second locking portion 23 and the center line L of the base 21 so that the second locking portion 23 can be inserted thereinto (see fig. 5 c), but may be set to a length exceeding the length.
Such a second locking portion 23 is in contact with the peripheral edge of the locking hole 7a1 (see fig. 6 c) in a state where the fixing bracket 1 is temporarily fixed to the inner panel 7a (see fig. 6 c) described later.
< temporary fixing Process of airbag device >
Next, a procedure of temporarily fixing the inner panel 7a to the fixing bracket 1 in the temporary fixing structure S of the present embodiment will be described.
Fig. 5(a) to 5(c) are explanatory views of the process when the temporary holding claw 2 is inserted into the locking hole 7a1 of the inner plate 7 a. Fig. 6(a) to 6(c) are explanatory views of the operation of the temporary holding claw 2 inserted into the locking hole 7a 1.
As shown in fig. 5(a), in the temporary fixing step of the fixing bracket 1 in the present embodiment, first, the temporary holding claw 2 of the fixing bracket 1 is brought closer to the lower side of the locking hole 7a1 of the inner panel 7 a. At this time, the plate surface of the fastening portion 12 of the fixing bracket 1 is disposed parallel to the plate surface of the inner panel 7a around the locking hole 7a 1.
Then, in the temporary holding claw 2 of the fixed bracket 1, the first locking portion 22 is inserted into the locking hole 7a1 of the inner panel 7 a.
Next, as shown in fig. 5(b), in the temporary fixing step, the temporary holding claw 2 is inserted into the locking hole 7a1 in the direction in which the first locking portion 22 protrudes from the base 21, while maintaining the parallel state of the plate surface of the fastening portion 12 of the fixing bracket 1 and the plate surface of the inner panel 7 a.
Then, as shown in fig. 5(c), in the temporary fixing step, the second locking portion 23 of the temporary holding claw 2 passes through the locking hole 7a1, and the step of inserting the temporary holding claw 2 into the locking hole 7a1 of the inner panel 7a is completed.
Fig. 5(c) shows a state in which the base portion 21 of the temporary holding claw 2 abuts against the right end of the locking hole 7a 1.
In fig. 5(a) to 5(c), reference numeral 5 denotes a gas generator.
Next, the operation of the temporary holding claw 2 inserted into the locking hole 7a1 will be described.
Fig. 6(a) shows the same state as the fixing bracket 1 for the inner plate 7a shown in fig. 5 (c). As shown in fig. 6(a), when the load applied to the fixing bracket 1 is released, the fixing bracket 1 starts to naturally fall in the vertical direction.
Next, as shown in fig. 6(b), in the fixing bracket 1 which has been naturally dropped, the second locking portion 23 of the temporary holding claw 2 abuts on the left end (the peripheral edge of the locking hole) of the locking hole 7a 1.
Thereby, the fixing bracket 1 rotates in the hollow arrow direction about the contact portion of the second locking portion 23 by the weight of the gas generator 5.
Then, as shown in fig. 6(c), the abutting edge 12b (abutting portion) of the fastening portion 12 of the fixing bracket 1 abuts against the inner plate 7a, whereby the turning operation of the fixing bracket 1 is stopped.
At this time, the base portion 21 of the temporary holding claw 2 abuts on the right end (the peripheral edge of the locking hole) 1 of the locking hole 7 a.
That is, the fixing bracket 1 is supported by the inner plate 7a by the second locking portion 23 of the temporary holding claw 2, the abutting edge (abutting portion) of the fastening portion 12, and the base 21.
Thereby, the process of temporarily fixing the inner panel 7a to the fixing bracket 1 is completed.
Fig. 7 to be referred to next is a state diagram of the temporary holding claw 2 when the inner plate 7a is finally fastened to the fixing bracket 1.
As shown in fig. 7, the final fastening position of the fixing bracket 1 to the inner panel 7a is such that the fastening portion 12 of the fixing bracket 1 is disposed along the inner panel 7a in a state where the base portion 21 of the temporary holding claw 2 abuts the left end (the peripheral edge of the locking hole) 1 by moving the fixing bracket 1 in the temporary fixing state shown in fig. 6(c) upward.
In the fixing bracket 1 at such a fastening position, the insertion hole 12a of the screw B (see fig. 2) of the fastening portion 12 overlaps the insertion hole 7a2 of the screw B (see fig. 2) formed in the inner panel 7 a.
In fig. 7, reference numeral 5 denotes a gas generator.
Incidentally, although not shown in the drawings, when the fixed bracket 1 in such a fastened position is released and allowed to fall freely, the fixed bracket 1 rotates about the contact portion of the second locking portion 23 with respect to the left end of the locking hole 7a1 (the peripheral edge of the locking hole), and thereby returns to the temporarily fixed state shown in fig. 6 (c).
< action Effect >
Next, the operation and effects exerted by the temporary fixing structure S of the airbag device a of the present embodiment will be described.
In the temporary fixing structure S of the present embodiment, the total distance D1 of the distance D3 from the center line L of the base 21 to the vertex V1 of the first locking portion 22 of the temporary holding claw 2 and the distance D4 from the center line L of the base 21 to the vertex V2 of the second locking portion 23 is set to be longer than the opening width W1 of the locking hole 7a 1.
The total distance D2 between the length of the second locking portion 23 extending from the base 21 and the width W2 of the base 21 is set shorter than the opening width W1 of the locking hole 7a1 in the present embodiment.
The temporary holding claws 2 can be inserted into the locking holes 7a1 of the inner panel 7a by securing the plate surfaces of the fastening portions 12 of the anchor bracket 1 to be parallel to the plate surface of the inner panel 7a (see fig. 5 a to 5 c). Then, the temporary holding claws 2 inserted into the locking holes 7a1 are held by the inner panel 7a (see fig. 6 a to 6 c).
In contrast, in the conventional temporary fixing structure (see, for example, patent document 1), as described in the background art section, the airbag device (gas generator holding portion) is tilted with respect to the inner panel, and one of a pair of locking claws bent rearward in an L shape is first inserted into the locking hole of the inner panel. Then, the gas generator holding portion is rotated parallel to the inner panel with one of the locking claws inserted into the locking holes as a rotation fulcrum, and the other locking claw is inserted into the locking hole of the inner panel.
In the above-described conventional temporary fixing structure, it is assumed that the gas generator is longer in the front-rear direction than the gas generator holding portion.
However, in the conventional temporary fixing structure, when the gas generator holding portion is tilted in order to insert one of the locking claws serving as the pivot fulcrum into the locking hole of the inner panel, the distal end portion of the gas generator protruding from the gas generator holding portion may interfere with the inner panel, and the one of the locking claws may not be inserted into the locking hole of the inner panel.
In this case, it is also conceivable to shift the mounting position of the gas generator with respect to the gas generator holding portion in the front-rear direction so that the end portion of the gas generator holding portion is aligned with the end portion of the gas generator on the side of one of the locking claws serving as the pivot.
However, when considering that the mounting positions of the inner plates of the gas generators are aligned with each other in the front-rear direction on the left and right sides of the vehicle body, two types of gas generator holding portions having a bilaterally symmetrical structure are required across the central axis of the vehicle body when the long gas generators are disposed as described above.
In contrast, according to the temporary fixing structure S of the present embodiment, unlike the conventional temporary fixing structure (see, for example, patent document 1), the gas generator 5 can be assembled to the inner panel 7a by securing the parallelism with the inner panel 7a without requiring the pivot operation of the fixing bracket 1.
Therefore, according to the temporary fixing structure S of the present embodiment, unlike the conventional temporary fixing structure (see, for example, patent document 1), even if the gas generator 5 is long in the front-rear direction, it can be attached to the inner panel 7a without interference.
Further, according to the temporary fixing structure S of the present embodiment, unlike the conventional temporary fixing structure (for example, see patent document 1) in which two types of gas generator holding portions having a bilaterally symmetrical structure are required, it is possible to correspond to the airbag apparatuses a on both the left and right sides with one type of fixing bracket 1. Thus, the number of parts can be reduced by the temporary fixing structure S.
Further, in the temporary holding claw 2 in the present embodiment, as described above, the first locking portion 22 is bent from the base 21 and projects obliquely upward, and the second locking portion 23 projects from the base 21 on the opposite side of the projecting direction of the first locking portion 22.
After the temporary holding claw 2 is inserted into the locking hole 7a1, the fixing bracket 1 is supported by the inner plate 7a by the base 21, the first locking portion 22, and the second locking portion 23 (see fig. 6 a to 6 c). That is, the temporary holding claw 2 is configured to exhibit the temporary holding function and the anti-drop function in one shape, unlike the locking claw of the conventional temporary fixing structure (see, for example, patent document 1).
Thus, unlike the conventional temporary fixing structure (see patent document 1, for example), the temporary fixing structure S of the present embodiment does not require two types of locking claws having the respective functions of the temporary holding function and the drop prevention function.
Therefore, the temporary fixing structure S of the present embodiment can reduce the number of parts and can have a further simplified structure.
In the temporary fixing structure S of the present embodiment, the extension angle θ 1 of the first locking portion 22 with respect to the center line L of the base 21 is 90 ° or more and less than 180 ° on the inner angle side (90 ° ≦ θ 1 < 180 °). The second locking portion 23 has an angle θ 2 of 90 ° (θ 2 is 90 °) with respect to the center line L of the base 21.
According to the temporary fixing structure S, as described above, when the temporary holding claw 2 is inserted into the locking hole 7a1 while maintaining the parallel state of the plate surface of the fastening portion 12 of the fixing bracket 1 and the plate surface of the inner panel 7a (see fig. 5 a to 5 c), the insertion operation is simplified.
In the temporary fixing structure S of the present embodiment, the fixing bracket 1 includes the abutting edge 12b (abutting portion) with which the inner plate 7a abuts in a state where the second engaging portion 23 abuts on the peripheral edge of the engaging hole 7a 1.
According to this temporary fixing structure S, the temporary fixing state of the fixing bracket 1 to the inner panel 7a becomes more stable.
In the temporary fixing structure S of the present embodiment, the plurality of temporary holding claws 2 are provided along the longitudinal direction of the gas generator 5.
According to this temporary fixing structure S, the temporary fixing state of the fixing bracket 1 to the inner panel 7a becomes more stable.
The present embodiment has been described above, but the present invention is not limited to the above embodiment, and can be implemented in various embodiments.
In the above embodiment, the temporary fixing structure S in which two fixing brackets 1 having the same shape and having one temporary holding claw 2 are arranged in line in the longitudinal direction of the gas generator 5 has been described, but a structure in which two temporary holding claws 2 are provided in a single fixing bracket 1 may be adopted.
In the above embodiment, the fixing bracket 1 attached to the gas generator 5 has been described, but the temporary fixing structure S may be a structure in which the fixing bracket 1 is attached to the airbag main body 3.
Claims (6)
1. A temporary fixing structure of an airbag device having a temporary holding claw inserted into an engagement hole formed in a vehicle body side, characterized in that,
the temporary holding claw has:
a base portion protruding from the airbag device side;
a first locking portion bent from the base and extending obliquely upward; and
a second locking portion that protrudes from the base portion on a side opposite to a protruding direction of the first locking portion,
the total distance between the distance from the vertex of the first locking part to the center line of the base and the distance from the vertex of the second locking part to the center line of the base is longer than the opening width of the locking hole, and the total distance between the protrusion length of the second locking part from the base and the width of the base is shorter than the opening width of the locking hole.
2. The temporary fixing structure of an airbag device according to claim 1,
the airbag device includes:
an airbag main body mounted on an upper portion of a side wall of a vehicle body and folded so as to be deployed in a curtain shape from the upper portion of the side wall when an impact is input;
a gas generator attached to an upper portion of the airbag body along a longitudinal direction of the airbag body, the gas generator supplying gas to the airbag body when an impact is input; and
a fixing bracket for fixing the gas generator to the upper portion of the sidewall,
the temporary holding claw protrudes from the fixing bracket.
3. The temporary fixing structure of an airbag device according to claim 1 or 2,
an angle of extension of the first locking portion with respect to a center line of the base is 90 ° or more and less than 180 ° on an inner angle side.
4. The temporary fixing structure of an airbag device according to any one of claims 1 to 3,
the second locking portion has a protrusion angle of 90 ° with respect to the center line of the base.
5. The temporary fixing structure of an airbag device according to claim 2,
the fixing bracket has: and an abutting portion that abuts against the vehicle body in a state where the second locking portion abuts against the peripheral edge of the locking hole.
6. The temporary fixing structure of an airbag device according to claim 2,
the temporary holding claws are provided in plural along the longitudinal direction of the gas generator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-037493 | 2019-03-01 | ||
| JP2019037493A JP6860603B2 (en) | 2019-03-01 | 2019-03-01 | Temporary fixing structure of airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111703394A true CN111703394A (en) | 2020-09-25 |
| CN111703394B CN111703394B (en) | 2022-08-02 |
Family
ID=72279851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084198.1A Active CN111703394B (en) | 2019-03-01 | 2020-02-10 | Temporary fixing structure of airbag device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6860603B2 (en) |
| CN (1) | CN111703394B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1935562A (en) * | 2005-09-20 | 2007-03-28 | 高田株式会社 | Mounting component and mounting structure for curtain airbag |
| JP2007161139A (en) * | 2005-12-15 | 2007-06-28 | Mazda Motor Corp | Curtain airbag mounting structure and its stop member for mounting |
| JP2014012466A (en) * | 2012-07-04 | 2014-01-23 | Toyota Auto Body Co Ltd | Temporarily stopping claw for automobile interior part |
| DE102014017531A1 (en) * | 2013-11-29 | 2015-06-03 | Toyoda Gosei Co., Ltd. | Head-protecting airbag device |
| CN105980757A (en) * | 2014-02-04 | 2016-09-28 | 百乐仕株式会社 | Hose clamp |
| GB201615430D0 (en) * | 2016-09-12 | 2016-10-26 | Nissan Motor Mfg (Uk) Ltd | Vehicle curtain airbag bracket |
| CN206623808U (en) * | 2017-03-23 | 2017-11-10 | 奇瑞汽车股份有限公司 | Curtain type gas bag structure |
| JP2018165133A (en) * | 2017-03-28 | 2018-10-25 | 豊田合成株式会社 | Head protection airbag device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6158870B2 (en) * | 2015-08-05 | 2017-07-05 | 本田技研工業株式会社 | Airbag device |
| JP6504049B2 (en) * | 2015-12-28 | 2019-04-24 | 豊田合成株式会社 | Head protection airbag device |
-
2019
- 2019-03-01 JP JP2019037493A patent/JP6860603B2/en active Active
-
2020
- 2020-02-10 CN CN202010084198.1A patent/CN111703394B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1935562A (en) * | 2005-09-20 | 2007-03-28 | 高田株式会社 | Mounting component and mounting structure for curtain airbag |
| JP2007161139A (en) * | 2005-12-15 | 2007-06-28 | Mazda Motor Corp | Curtain airbag mounting structure and its stop member for mounting |
| JP2014012466A (en) * | 2012-07-04 | 2014-01-23 | Toyota Auto Body Co Ltd | Temporarily stopping claw for automobile interior part |
| DE102014017531A1 (en) * | 2013-11-29 | 2015-06-03 | Toyoda Gosei Co., Ltd. | Head-protecting airbag device |
| CN105980757A (en) * | 2014-02-04 | 2016-09-28 | 百乐仕株式会社 | Hose clamp |
| GB201615430D0 (en) * | 2016-09-12 | 2016-10-26 | Nissan Motor Mfg (Uk) Ltd | Vehicle curtain airbag bracket |
| CN206623808U (en) * | 2017-03-23 | 2017-11-10 | 奇瑞汽车股份有限公司 | Curtain type gas bag structure |
| JP2018165133A (en) * | 2017-03-28 | 2018-10-25 | 豊田合成株式会社 | Head protection airbag device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020138689A (en) | 2020-09-03 |
| JP6860603B2 (en) | 2021-04-14 |
| CN111703394B (en) | 2022-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3170703B1 (en) | Side air bag device | |
| US7798517B2 (en) | Knee-protecting airbag apparatus | |
| US8297646B2 (en) | Clip for airbag | |
| US20120299276A1 (en) | Head-protecting airbag apparatus | |
| US20120007346A1 (en) | Fastening arrangement for an airbag module housing | |
| JP5566855B2 (en) | Curtain airbag module, curtain airbag device, and method of assembling curtain airbag module | |
| US11267430B2 (en) | Knee protection airbag device | |
| US7216892B2 (en) | Air bag door and attachment method | |
| JP5044305B2 (en) | Airbag device | |
| CN110949307A (en) | Head-protecting airbag device | |
| US9216711B2 (en) | Head protection airbag apparatus | |
| US11332097B2 (en) | Passenger seat airbag | |
| JP2011162127A (en) | Curtain air bag device for vehicle | |
| US8727371B2 (en) | Airbag apparatus of vehicle | |
| CN111703394B (en) | Temporary fixing structure of airbag device | |
| US20040041379A1 (en) | Airbag apparatus for front passenger seat | |
| JP5008349B2 (en) | Airbag device | |
| JP5777903B2 (en) | Airbag device | |
| WO2012176622A1 (en) | Curtain air bag mounting structure | |
| JP2010018099A (en) | Front passenger seat airbag device | |
| JP2017213996A (en) | Head protection airbag device | |
| JPH1130214A (en) | Clip | |
| WO2015098367A1 (en) | Air bag device | |
| CN111344188A (en) | Side airbag device and method for producing a side airbag device | |
| WO2011162123A1 (en) | Airbag device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |