JP5227200B2 - Airbag clip mounting structure - Google Patents

Description

  The present invention relates to an attachment structure of an airbag clip for attaching a pillar garnish to a vehicle body panel in a state where the airbag is stored.

  The conventional attachment structure of this type of clip for an air bag, as shown in Patent Document 1, is to provide an air bag on the side of the interior of an automobile for the purpose of protecting the occupant more safely. Is composed of a pin member and a grommet member, and the former pin member includes a head mounted on a mounting seat of a pillar garnish described later, and a leg portion slidably inserted into the grommet member. A first locking claw and a second locking claw are formed on the leg portion, and the latter grommet member has a flange portion having an opening communicating with the inside of the grommet member at the center, and a mounting hole for a front pillar as a vehicle body panel to be described later A first engaging wall for engaging the first locking claw and a second engaging wall for engaging the second locking claw. ing.

  Also, for the pillar garnish, the airbag is stored and attached to the front pillar in a detachable manner, and a mounting seat for mounting the head of the pin member is provided on the back surface thereof. An attachment hole for engaging the body portion of the grommet member is formed.

  In actual use, the head of the pin member is mounted on the pillar garnish mounting seat, while the body of the grommet member is engaged with the mounting hole of the front pillar. Is inserted deeply into the body of the grommet member, the first locking portion on the pin member side engages with the first engaging wall on the grommet member side, so that the airbag clip is positioned between the pillar garnish and the front pillar. The pillar gannish itself is attached to the front pillar side.

  Under such a state, when the airbag is deployed due to a side collision of the automobile, the pillar garnish is pushed by the inflation pressure, so that an external force in the direction of coming out of the grommet member acts on the pin member. While the engagement between the first locking claw and the first engagement wall is released, the second locking claw and the second engagement wall are newly engaged, and the pillar garnish is separated from the front pillar. Thus, the gap is defined, and the airbag is deployed in the vehicle compartment through the gap, thereby ensuring the safety of the occupant.

  However, under the mounting structure shown in Patent Document 1, when the airbag is deployed, the pillar garnish can be separated from the front pillar only by the amount of the pin member pulled out from the grommet member. When it is necessary to widen the gap in order to reliably deploy the pin, there was no method other than extending the entire length of the pin member. For this reason, along with this, there is a possibility that the pillar garnish unnecessarily protrudes into the vehicle compartment and restricts the vehicle compartment side space.

  Therefore, an attachment structure shown in Patent Document 2 has been proposed. In this mounting structure, a bridge around which the strap is wound is integrally formed near the upper end and the lower end of the back surface of the pillar garnish, and the clip engaged with the mounting hole on the front pillar side is spaced in the middle longitudinal direction. The pillar garnish is formed by opening a bolt insertion hole at the end of each strap wound around the bridge and fixing each strap to the front pillar side through the bolt insertion hole. The front pillar is connected with a predetermined amount of slack.

Therefore, under such a mounting structure, when the airbag is deployed due to a side collision of the automobile, the clip is released from the mounting hole of the front pillar due to the inflation pressure, and the pillar garnish is separated into the vehicle interior. However, since the pillar garnish and the front pillar are connected via the strap wound around the bridge, the pillar garnish is used even if the clip is detached from the mounting hole of the front pillar. Since it is securely connected to the front pillar side by the strap, it goes without saying that the pillar garnish can be prevented from scattering, but the pillar garnish is separated from the front pillar to define a gap, and the airbag is still Because it is deployed in the passenger compartment through this gap, this will ensure passenger safety The be coercive.
JP 2002-37007 A Japanese Patent No. 3497452

  However, the mounting structure shown in Patent Document 2 can enlarge the gap defined between the pillar garnish and the front pillar by adjusting the amount of slack of the strap. Although the problem of 1 can be solved, since the pillar garnish is connected to the front pillar side via the strap, the movement of the pillar garnish cannot be regulated after the airbag is deployed. There was a risk of hitting the head.

  The present invention has been devised in view of such circumstances, and while restricting the movement of the pillar garnish after the airbag is deployed, the space between the pillar garnish and the front pillar is not reduced without reducing the space in the passenger compartment. It is an object of the present invention to provide an airbag clip mounting structure capable of enlarging a defined gap.

The present invention was developed in order to effectively solve the problems of these conventional mounting structures. The invention according to claim 1 enables the pillar garnish to be attached to and detached from the vehicle body panel while the airbag is housed. An airbag clip mounting structure to be attached, the airbag clip comprising a pin member that is attached to either the pillar garnish or the vehicle body panel and a grommet member that is attached to the other, the pin member being a pillar garnish or A head portion mounted on the vehicle body panel, and a leg portion that is slidably inserted into the grommet member, the leg portion holding a pillar garnish when the airbag is stored; and a second locking portion for holding the pillar garnish in a deployed state of the airbag, and, face each other with a gap from the head lower surface A pair of leg walls hanging downward, forming the first locking portion above the outer surface of each leg wall and forming the second locking portion below the outer surface, The part has a protruding shape protruding from the outer surface of the side wall, and the grommet member has a flange part formed with an opening communicating with the inside of the grommet member at the center, and an insertion hole for inserting the leg part of the pin member inside A first engagement portion that engages with the first locking portion of the pin member, and a second engagement portion that engages with the second locking portion of the pin member. In the deployed state of the airbag, the second locking portion is slidably engaged with the second engaging portion, and the pin member or the grommet member oscillates by this engagement. The gap defined between the pillar garnish and the vehicle body panel is enlarged.

  According to a second aspect of the present invention, on the premise of the first aspect, the pin member or the grommet member swings so as to open a gap between the end of the pillar gannish on the side where the airbag is accommodated and the vehicle body panel. It is characterized by doing.

According to a third aspect of the present invention, on the premise of the first or second aspect , the pair of protrusions as the second locking portions are arranged along the edge on the side where the airbag of the pillar garnish is deployed. Yes.

According to a fourth aspect of the present invention, on the premise of the first to third aspects, the planar shape of the head portion of the pin member is a shape having a major axis and a minor axis, and the vehicle body panel has a trunk portion of the grommet member. There is a mounting hole to be engaged, and the mounting hole has a circular or square shape.

In the invention described in claim 5, on the premise of claims 1 to 4 , the side wall width of the leg portion of the pin member is tapered toward the tip thereof.

According to a sixth aspect of the present invention, on the premise of the first to fifth aspects, the body portion of the grommet member has a slide guide that guides the second locking portion of the pin member to its second engaging portion.

According to a seventh aspect of the invention, on the premise of the first to sixth aspects, at least one of the engaging surfaces of the second engaging portion of the pin member and the second engaging portion of the grommet member has a curved surface. Presents.

  Therefore, in the invention described in claim 1, the air bag is surely deployed by expanding the gap defined between the pillar garnish and the vehicle body panel without limiting the space in the vehicle interior. In addition, since the pin member and the grommet member support the pillar garnish, it is possible to effectively prevent the pillar garnish from colliding with the occupant's head.

  In the invention according to claim 2, the pin member or the grommet member swings so as to open a gap between the end of the pillar garnish on the side where the airbag is accommodated and the vehicle body panel. The air bag can be reliably spread to ensure complete deployment of the airbag, and the movement of the pillar garnish after the airbag deployment can be more reliably regulated.

In the invention according to claim 3 , since the pair of protrusions are arranged along the edge portion on the side where the airbag of the pillar garnish is deployed, the swing direction of the pillar garnish is more easily regulated. However, the complete deployment of the airbag can be guaranteed.

In the invention according to claim 4 , since the planar shape of the head of the pin member is a shape having a major axis and a minor axis, when assembling the airbag clip on the pillar garnish side, It can be securely assembled in the correct posture and the swinging direction can be properly regulated, and the mounting hole of the vehicle body panel has a circular or square shape. In the case of assembling on the panel side, it is possible to easily assemble, so that in any case, the mounting operation becomes easy.

In the invention according to claim 5 , since the leg portion of the pin member is tapered toward the tip, the clearance between the pin member and the grommet member increases as the pin member is pulled out from the grommet member. Thus, the pin member or the grommet member can be swung by the clearance even during the slide, and it is difficult to apply an excessive force to the pillar gannish when the airbag is deployed.

In the invention of claim 6 , the body portion of the grommet member has a slide guide that guides the second locking portion of the pin member to its second engaging portion. It is possible to reliably lead to the second engagement portion, and the slide section to the second engagement portion can also regulate the movement of the pillar garnish.

In the invention according to claim 7 , since the engaging surface of the second engaging portion of the pin member and the second engaging portion of the grommet member has a curved surface, the pin member or the grommet member smoothly swings. Can be guaranteed.

  The present invention presupposes an airbag clip mounting structure in which a pillar garnish is detachably attached to a vehicle body panel in a state where the airbag is stored, and the airbag clip is attached to either the pillar garnish or the vehicle body panel. The pin member includes a pin member to be attached and a grommet member to be attached to the other. The pin member includes a head portion that is attached to the pillar garnish or the vehicle body panel, and a leg portion that is slidably inserted into the grommet member. The portion includes a first locking portion that holds the pillar garnish in the airbag storage state, and a second locking portion that holds the pillar garnish in the airbag deployment state, and the grommet member has a grommet member in the center. A flange part with an opening communicating with the inside of the inside and an insertion hole for inserting the leg part of the pin member inside was formed. The body portion has a first engagement portion that engages the first locking portion of the pin member and a second engagement portion that engages the second locking portion of the pin member. In the deployed state of the airbag, the second locking portion is engaged with the second engaging portion so as to be swingable, and by this engagement, the pin member or the grommet member swings, and the pillar By enlarging the gap defined between the garnish and the vehicle body panel, the air bag is surely deployed.

  Hereinafter, the present invention will be described in detail on the basis of a preferred embodiment shown in the drawings. The mounting structure according to the embodiment also has an airbag B in a state in which an airbag B is housed as shown in FIG. The pillar garnish G is detachably attached to the front pillar F, which is a vehicle body panel, via a clip C. A mounting seat for mounting the head 3 of the pin member 1 to be described later is attached to the pillar garnish G. Ga is integrally formed, and the front pillar F has a configuration in which a circular or square mounting hole Pa is formed in the inner panel P to attach a trunk portion 15 of a grommet member 2 described later. . In the figure, W1 is a front window and W2 is a side window.

  As shown in FIG. 2, the airbag clip C provided in the mounting structure includes a pin member 1 that is attached to the pillar garnish G side and a grommet member 2 that is attached to the inner panel P side of the front pillar F. The pin member 1 and the grommet member 2 are both integrally molded products of synthetic resin.

  As shown in FIG. 3, the former pin member 1 includes a head 3 that is attached to the mounting seat Ga of the pillar garnish G, and a leg 4 that is slidably inserted into the grommet member 2. The head 3 has a third flange 7 that abuts on a flange portion 13 of the grommet member 2 described later, in addition to the first flange 5 and the second flange 6 that hold the hole edge of the mounting seat Ga from the inside and outside. The leg part 4 has a pair of side walls 4a that hang down from the lower surface of the third flange 7, and is a protrusion that holds the pillar garnish G in the stored state of the airbag B above the outer surface of each side wall 4a. A pair of first locking portions 8 having a shape projecting from each other, and a pair of first locking portions 8 each having a protruding shape for holding the pillar garnish G in the deployed state of the airbag B at the lower portion of the outer surface of each side wall 4a, that is, at the tip of the side wall 4a. While projecting the two locking parts 9 It has a structure for connecting together by a connecting wall 10 a distal edge of each side wall 4a.

  Further, the planar shape of the first flange 5 of the pin member 1 is a substantially elliptical shape having a major axis and a minor axis. By using this directional shape, the first flange 5 is mounted on the mounting seat Ga of the pillar garnish G in a correct posture. The side wall 4a of the leg part 4 is tapered from the middle toward the tip, and the second locking part 9 is formed in a slide guide groove 17 of the grommet member 2 to be described later. The engaging surface that engages with the upper edge is a curved surface. In addition, the several wall 11 radially arranged between the 2nd flange 6 and the 3rd flange 7 is for preventing the incorrect assembly | attachment with respect to the attachment seat Ga of the pillar garnish G. As shown in FIG. Furthermore, since the 2nd latching | locking part 9 is arrange | positioned along the edge part by the side of which the airbag B of the pillar garnish G is expand | deployed, the rocking | fluctuation direction of the pillar garnish G can be controlled easily.

  As shown in FIG. 4, the latter grommet member 2 has a flange portion 13 having an opening 12 communicating with the inside of the grommet member 2 in the center and an insertion hole 14 into which the leg portion 4 of the pin member 1 is inserted. The bottomed body portion 15 is formed, and the edge of the mounting hole Pa formed in the inner panel P of the front pillar F is cooperated with the flange portion 13 on one opposing peripheral wall of the body portion 15. A pair of retaining claws 16 are provided, and a pair of slide guide grooves 17 having an inverted U shape are formed on the other opposing peripheral walls, and are provided on the same line in each slide guide groove 17. Further, the first locking portions 8 and the second locking portions 9 of the pin member 1 are slidably engaged. Note that the upper end edge of each slide guide groove 17 is positively imparted with a curved surface shape that matches the curved surface of the second locking portion 9 having the protruding shape, so that the pin member 1 can be smoothly swung. I guarantee it.

  Therefore, in the present embodiment, the upper end edge of the slide guide groove 17 is provided on the same line in accordance with the insertion state of the leg portion 4 of the pin member 1 into the insertion hole 14 of the grommet member 2. Although the engaging portion where the engaging portion 8 and the second engaging portion 9 engage is also used, at least in the state in which the airbag B is stored, the first engaging portion 8 serves as the first engaging portion. In the deployed state of the airbag B, the second locking portion 9 only needs to engage with the second engaging portion, so the present invention is not limited to this, and the first locking portion 8 and the second locking portion 9 are not provided on the same line, a dedicated first engaging portion for the first locking portion 8 and a dedicated second engaging portion for the second locking portion 9 are respectively provided. It is optional depending on the implementation.

  Therefore, when the pillar garnish G is detachably mounted on the inner panel P side of the front pillar F under the mounting structure having such a configuration, first, the first locking portion 8 and the second locking portion described above are used. When the leg portion 4 of the pin member 1 is inserted into the insertion hole 14 formed in the body portion 15 of the grommet member 2 while aligning the slide guide groove 17 serving as the engagement portion serving as the engagement portion 9 and FIG. As described above, the second locking portion 9 is guided to the lower side of the slide guide groove 17. However, since the third flange 7 of the pin member 1 contacts the flange portion 13 of the grommet member 2, the first locking portion 8 is slid. By engaging with the upper end edge of the guide groove 17, the pin member 1 and the grommet member 2 are integrated by the holding action of the third flange 7 and the first locking portion 8 against the flange portion 13. In this embodiment, this posture is a delivery state of the airbag clip C and a set state on the pillar garnish G and the front pillar F.

  Therefore, after obtaining this posture, the head portion 3 of the pin member 1 is attached to the mounting seat Ga of the pillar garnish G via the first flange 5 and the second flange 6, while the flange portion 13 and the pair of engagements are attached. When the body portion 15 of the grommet member 2 is inserted into the mounting hole Pa formed in the inner panel P of the front pillar F via the pawl 16, the airbag clip C is formed as shown in FIGS. 6 and 7. While being attached between the pillar garnish G and the inner panel P, the pillar garnish G itself is attached to the front pillar F side. At this time, as described above, the first flange 5 of the pin member 1 is long. Since it has a substantially elliptical shape having an axis and a short axis, the head 3 of the pin member 1 is assembled to the mounting seat Ga of the pillar garnish G by this orientation as shown in FIG. Can be securely assembled in the correct orientation, and the mounting hole Pa of the inner panel P is circular or square, so that the non-directionality causes the body portion 15 of the grommet member 2 to be attached to the mounting hole Pa. Can be easily inserted. In the figure, P1 is the outer panel of the front pillar F, and P2 is the reinforcement.

  Then, when the airbag B is deployed due to a side collision of the automobile, the pillar garnish G is pressed by receiving the expansion pressure due to the deployment, so that the external force in the direction of coming out of the grommet member 2 is exerted on the pin member 1. At this time, as shown in FIG. 9, the engagement with the upper edge of the slide guide groove 17 which is the engaging portion of the first locking portion 8 is released, while the second locking portion 9 is now turned off. Is guided by the slide guide groove 17 and the second locking portion 9 engages with the upper edge of the slide guide groove 17, the pillar garnish G is separated from the inner panel P, and the pillar garnish G and the inner panel P are separated from each other. Since the gap is defined between the airbag B and the airbag B, the airbag B is deployed in the passenger compartment through the gap to protect the head of the occupant. Therefore, in the present embodiment, the engaging force of the first locking portion 8 is set to be smaller than the engaging force of the second locking portion 9 as in the prior art.

  Further, in such a state, as shown in FIG. 10, the action of the curved surfaces causes the second locking portion 9 and the upper edge of the slide guide groove 17 to swingably engage with each other, so that the pillar garnish When G receives the inflation pressure of the airbag B, the pin member 1 attached to the pillar garnish G swings with respect to the grommet member 2, and the end of the pillar garnish G on the side where the airbag B is stored Since the gap S defined between the inner panel P and the inner panel P is automatically enlarged, the enlargement of the gap S makes it possible to reliably deploy the airbag. In this case, it goes without saying that the pillar garnish G does not have to be scattered from the inner panel P due to the engagement of the second locking portion 9 with the upper edge of the slide guide groove 17. Since the movement of the pin member 1 and the grommet member 2 is restricted, there is no concern of accidentally hitting the passenger's head.

  Therefore, in the mounting structure of the present embodiment, the gap S between the pillar garnish G and the inner panel P of the front pillar F can be secured to the maximum without limiting the space in the vehicle interior. Thus, the problems of the conventional mounting structure can be solved at once. In addition, since the leg portion 4 of the pin member 1 is tapered toward the tip, the pin member 1 can be swung in the middle of the slide with respect to the grommet member 2. There is also an advantage that an excessive force is not easily applied to the pillar gannish G.

  In addition, when replacing the activated airbag B, or when performing maintenance / inspection of the airbag B, in any case, until the second locking portion 9 is engaged with the upper end edge of the slide guide groove 17. When the pin member 1 is pulled out by the grommet member 2 and the leading end portion 16a of each locking claw 16 of the grommet member 2 facing the flange portion 13 is picked inward, the inner panel P of the pair of locking claws 16 is attached. Since the engagement state with respect to the hole Pa can be immediately released, the pillar garnish G may be removed from the inner panel P and the airbag B may be replaced, maintained, or inspected.

  The attachment structure of the airbag clip according to the present invention can assure the reliable deployment of the airbag by maximizing the gap defined between the pillar garnish allowing the airbag deployment and the vehicle body panel. If this is applied to various automobiles equipped with airbags, it will be very convenient.

It is a principal part perspective view which shows the state which applied this invention to the pillar garnish for front pillars. It is a disassembled perspective view which shows the clip for airbags provided to the attachment structure of this invention. (A) is a front view of the pin member, (B) is a side view thereof, (C) is a cross-sectional view taken along line AA in FIG. 3A, and (D) is a cross-sectional view taken along line BB in FIG. 3B. 4A is a front view of the grommet member, FIG. 4B is a side view thereof, FIG. 4C is a cross-sectional view taken along line CC in FIG. 4A, and FIG. 4D is a cross-sectional view taken along line DD in FIG. (A) is sectional drawing which shows the state which integrated the pin member and the grommet member, (B) is sectional drawing which shows the same integrated state from another angle. It is sectional drawing which shows the state which attached the pillar garnish to the inner panel of the front pillar. It is the EE sectional view taken on the line of FIG. It is explanatory drawing which shows the relationship between the 1st flange of a pin member, and the attachment seat of a pillar gannish. It is sectional drawing which shows the state of the side collision of a motor vehicle. It is sectional drawing which shows the state which the pin member rock | fluctuated with respect to the grommet member, and expanded the clearance gap defined between the pillar garnish and the inner panel of a front pillar.

DESCRIPTION OF SYMBOLS 1 Pin member 2 Grommet member 3 Head part 4 Leg part 4a Side wall 5 1st flange 6 2nd flange 7 3rd flange 8 1st latching part 9 2nd latching part 10 Connecting wall 11 Wall 12 Opening 13 Flange part 14 Insertion Hole 15 Body 16 Locking Claw 16a Tip of Locking Claw 17 Slide Guide Groove C Airbag Clip B Airbag G Pillar Garnish Ga Mounting Seat F Front Pillar P Front Pillar Inner Panel (Car Body Panel)
Pa Mounting hole P1 Front pillar outer panel P2 Front pillar reinforcement W1 Front window W2 Side window

Claims (7)

An airbag clip mounting structure in which a pillar garnish is detachably attached to a vehicle body panel in a state in which the airbag is stored, and the airbag clip includes a pin member attached to either the pillar garnish or the vehicle body panel. The pin member includes a head portion mounted on the pillar garnish or the vehicle body panel, and a leg portion that is slidably inserted into the grommet member, and the leg portion includes an air grommet member. It has a first locking part for holding the pillar garnish in the storage state of the bag, and a second locking part for holding the pillar garnish in the deployed state of the airbag, and is opposed to the head lower surface through a gap. A pair of leg walls that hang down, forming the first locking portion above the outer surface of each leg wall, and forming the second locking portion below the outer surface. To, respective second locking portion exhibits a shaped protrusion which projects from the outer surface of the side wall, the grommet member includes a flange portion formed an opening communicating with the interior of the center grommet member, inside the pin member A body portion having an insertion hole for inserting a leg portion of the pin member, the body portion including a first engagement portion for engaging the first locking portion of the pin member and a second locking portion of the pin member. A second engaging portion that engages with the second engaging portion so that the second engaging portion is swingably engaged with the second engaging portion in the deployed state of the airbag. An attachment structure for an airbag clip, wherein a pin member or a grommet member swings to enlarge a gap defined between a pillar garnish and a vehicle body panel.   The airbag clip according to claim 1, wherein the pin member or the grommet member swings so as to open a gap between the end of the pillar gannish on the side where the airbag is accommodated and the vehicle body panel. Mounting structure. A pair of projections as the second locking part, according to claim 1 or claim 2, characterized in that the air bag of the pillar garnish is disposed along the edge of the side to be expanded Airbag clip mounting structure. The planar shape of the head portion of the pin member is a shape having a major axis and a minor axis, and the vehicle body panel has an attachment hole for engaging the trunk of the grommet member, and the attachment hole has a circular shape or a square shape. The attachment structure of the clip for airbags in any one of Claims 1 thru | or 3 characterized by the above-mentioned. The side wall width of the leg part of a pin member is tapering toward the front-end | tip, The attachment structure of the clip for airbags in any one of the Claims 1 thru | or 4 characterized by the above-mentioned. The body part of a grommet member has a slide guide which guides the 2nd latching | locking part of a pin member to an own 2nd engaging part, The object for airbags in any one of Claim 1 thru | or 5 characterized by the above-mentioned. Clip mounting structure.   At least one of the engaging surfaces of the second engaging portion of the pin member and the second engaging portion of the grommet member has a curved surface, according to any one of claims 1 to 6. Attachment structure of the airbag clip as described.

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