Vehicle body coupling device for curtain airbag

Abstract

According to the present invention, a vehicle body coupling device for a curtain airbag is introduced, comprising: a bracket having an upper portion installed on the roof-side body of a vehicle, a lower portion extending downward, formed of a metal material, and having a protruding projection formed on the lower portion; and a connecting tab having a lower portion coupled to a curtain airbag, a main body extending upward, a first through-hole formed penetrating the main body, and a projection inserted into the first through-hole to be coupled to the bracket, wherein the projection is bent by an external force in a direction intersecting the longitudinal direction while inserted into the first through-hole to fix the connecting tab.

Description

Technology Field

[0001] The present invention relates to a vehicle body coupling device for a curtain airbag, and specifically, to a technology for coupling a curtain airbag to the roof of a vehicle. Background Technology

[0003] In the development of new automobiles, there is a trend to prioritize passenger safety along with environmental protection, and separate safety devices designed to safely protect passengers in the event of an accident are being emphasized.

[0004] Among these safety devices, as is widely known, a representative example is the airbag system along with the seat belt equipped in the seat, which is already widely used. The seat belt secures the upper body of the occupant—specifically the chest and waist—to the seat, thereby preventing the occupant's body from being thrown forward by inertia during a frontal collision, thus minimizing casualties. Meanwhile, the airbag system prevents injuries to the occupant's head, which is not secured to the seat by the seat belt, during a frontal or side collision, or prevents casualties by protecting the chest and head of children who cannot wear the seat belt normally due to their body shape or occupants who are not wearing the seat belt.

[0005] As such, the airbag system, which is a safety device that protects occupants from the impact caused by a collision during a frontal or side collision of a vehicle, is generally composed of a collision detection system and an airbag module. The collision detection system consists of a collision sensor, a battery, and a diagnostic device, while the airbag module consists of an airbag and an operating gas inflation device that inflates the airbag.

[0006] Accordingly, when a collision is detected by the collision sensor, the operating gas expansion device explodes, and the airbag is instantaneously inflated by the gas resulting from the explosion. At this time, the pressure of the gas acting is high enough to rapidly expand to the point where it takes a short time of approximately 0.05 seconds from the moment of collision until the airbag is fully deployed and activated. The acting gas is either high-pressure gas generated by the rapid combustion of a solid or gas stored in a high-pressure gas container.

[0007] Meanwhile, the airbag system described above is often installed mainly in the front seats, namely the driver's seat and the passenger seat. In order to prevent accidents in which the occupant's head or face is thrown forward by inertia during a frontal collision (or head-on collision) and hits the steering wheel area in the case of the driver's seat or the glove box area of ​​the instrument panel in the case of the passenger seat, the airbag is installed on the inner side of the horn cap of the steering wheel in the driver's seat and on the glove box area in the passenger seat. Additionally, a curtain airbag is built into the inner side of the headlining of the vehicle interior to prevent the occupant's body from hitting the door or other parts of the vehicle body and sustaining injuries during a side collision.

[0008] Conventional curtain airbag body attachment devices are designed so that the curtain airbag is sewn onto a connecting tab made of fabric material and is attached to the roof side of the vehicle.

[0009] However, due to this connection method, there was a problem where the fabric connecting tabs were damaged by the weight of the curtain airbag, preventing the curtain airbag from deploying normally.

[0011] The matters described above as background technology are intended only to enhance understanding of the background of the present invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. Prior art literature

[0013] (Patent Document 0001) KR 10-2005-0054579 A1 The problem to be solved

[0014] The present invention is proposed to solve these problems, and its purpose is to attach a curtain airbag to the roof of a vehicle by attaching a metal bracket to the roof of the vehicle body and connecting the curtain airbag to the bracket with a fabric connecting tab. means of solving the problem

[0016] The vehicle body coupling device for a curtain airbag according to the present invention comprises: a bracket having an upper portion installed on the roof-side body of a vehicle, a lower portion extending downward, formed of a metal material, and having a protruding projection formed on the lower portion; and a connecting tab having a lower portion coupled to a curtain airbag, a main body extending upward, a first through-hole formed penetrating the main body, and a projection inserted into the first through-hole to be coupled to the bracket; wherein the projection, while inserted into the first through-hole, can be bent by an external force in a direction intersecting the longitudinal direction to fix the connecting tab.

[0017] The connecting tab includes an extension portion extending upward from the upper part of the main body, and the bracket includes a first connecting hole positioned upwardly spaced from the protrusion and a second connecting hole positioned upwardly spaced from the first connecting hole, and the extension portion can be connected to the bracket by being bent downward after being sequentially inserted into the first connecting hole and the second connecting hole.

[0018] The protrusion is bent in a direction intersecting the longitudinal direction while the extension is bent downward, allowing the overlapping main body and extension to be pressed together.

[0019] The extension includes a second through hole through which the end is penetrated, and the extension is bent downward and, with the projection inserted into the second through hole, is bent in a direction intersecting the longitudinal direction so that the overlapping main body and the extension can be press-fitted.

[0020] A pair of protrusions may be formed spaced apart from each other in a direction intersecting the direction in which the bracket is extended, and a pair of first through holes may be formed to correspond to the protrusions.

[0021] The protrusions formed as a pair can be bent in a direction facing each other.

[0022] A pair of protrusions may be formed spaced apart from each other in a direction intersecting with the direction in which the bracket is extended, and a pair of first and second through holes may be formed to correspond to the protrusions.

[0023] A through bolt hole is formed in the upper part of the bracket, and a bolt is inserted into the bolt hole to connect the vehicle body and the bracket.

[0024] The bracket further includes a hook protruding in a direction intersecting the direction in which the bracket is extended and the bracket is joined to the vehicle body, and the vehicle is provided with a hook hole into which the hook is inserted, so that the hook can be inserted into the hook hole and temporarily joined before the bracket is joined through the bolt.

[0025] A pair of hooks are formed by being spaced apart in a direction intersecting the bolt hole and the direction in which the bracket extends, and hook holes can be formed at positions corresponding to the hooks. Effects of the invention

[0027] The vehicle body coupling device for a curtain airbag according to the present invention has the effect of preventing the curtain airbag from being released from the roof of the vehicle by supporting the load of the curtain airbag by supporting the load of the curtain airbag by the bracket, wherein a bracket made of metal is coupled to the roof side of the vehicle body, the bracket is connected to a connecting tab, and the curtain airbag is coupled to the connecting tab.

[0028] In addition, the protrusions on the lower part of the bracket pass through the first and second through holes formed in the connecting tab and are bent by an external force, thereby improving the bonding strength between the bracket and the connecting tab. Brief explanation of the drawing

[0030] FIG. 1 is a perspective view of a bracket included in a vehicle body coupling device for a curtain airbag according to one embodiment of the present invention. FIG. 2 is a perspective view of a connecting tab included in a vehicle body coupling device for a curtain airbag according to one embodiment of the present invention. FIG. 3 is a perspective view illustrating another embodiment of the connection tab of the present invention. FIG. 4 is a perspective view illustrating another embodiment of the bracket of the present invention. FIG. 5 is a drawing illustrating the assembly sequence of a vehicle body coupling device for a curtain airbag according to an embodiment of the present invention. FIG. 5 is a diagram illustrating the assembly sequence of a vehicle body coupling device for a curtain airbag according to another embodiment of the present invention. Specific details for implementing the invention

[0031] Specific structural or functional descriptions of the embodiments of the present invention disclosed in this specification or application are merely illustrative for the purpose of explaining embodiments according to the present invention, and embodiments according to the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in this specification or application.

[0032] Since embodiments according to the present invention may be subject to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0033] Terms such as "first" and / or "second" may be used to describe various components, but said components should not be limited by said terms. For the sole purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0034] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0035] The terms used herein are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the implemented features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0036] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this specification.

[0037] The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. Identical reference numerals in each drawing indicate identical components.

[0038] FIG. 1 is a perspective view of a bracket (10) included in a coupling device for a curtain airbag (30) according to one embodiment of the present invention, FIG. 2 is a perspective view of a connecting tab (20) included in a coupling device for a curtain airbag (30) according to one embodiment of the present invention, FIG. 3 is a perspective view showing another embodiment of the connecting tab (20) of the present invention, FIG. 4 is a perspective view showing another embodiment of the bracket (10) of the present invention, FIG. 5 is a drawing showing the coupling sequence of a coupling device for a curtain airbag (30) according to one embodiment of the present invention, FIG. 5 is a drawing showing the coupling sequence of a coupling device for a curtain airbag (30) according to another embodiment of the present invention.

[0039] Referring to FIGS. 1 to 6, a preferred embodiment of a coupling device for a curtain airbag (30) according to the present invention will be examined.

[0040] The vehicle body coupling device for a curtain airbag (30) according to the present invention comprises: a bracket (10) having an upper portion installed on the roof side of the vehicle body, a lower portion extending downward, formed of a metal material, and having a protruding projection (11) formed on the lower portion; and a connecting tab (20) having a lower portion coupled to the curtain airbag (30), a main body (24) extending upward, a first through hole (22) formed penetrating the main body (24), and a projection (11) inserted into the first through hole (22) to be coupled to the bracket (10); wherein the projection (11) can be bent by an external force in a direction intersecting the longitudinal direction while inserted into the first through hole (22) to fix the connecting tab (20).

[0041] The connecting tab (20) is formed of fabric material and its lower portion can be firmly fixed to the curtain airbag (30) that extends downward through sewing and unfolds toward the door of the vehicle.

[0042] The upper part of the bracket (10) can be connected to the roof of the vehicle's door side, and the lower part extends downward, and a projection (11) protruding outward can be formed on the lower side.

[0043] A first through hole (22) may be formed in the upper part of the connecting tab (20), and a protrusion (11) is inserted into the through hole. Subsequently, the metal protrusion (11) is bent in a direction intersecting the longitudinal direction by an external force, thereby connecting the connecting tab (20) and the bracket (10).

[0044] By doing so, compared to a conventional coupling device for a curtain airbag (30) that directly connects the connecting tab (20) to the vehicle, the connecting tab (20) is fixed to the bracket (10), and the bracket (10) is connected to the roof of the vehicle body, thereby reducing the load applied to the connecting tab (20).

[0045] Additionally, multiple brackets (10) and connecting tabs (20) can be connected to the roof side according to the length of the curtain airbag (30).

[0046] The connecting tab (20) includes an extension part (21) that extends upward from the upper part of the main body (24), and the bracket (10) includes a first connecting hole (12) positioned upwardly spaced from the projection part (11) and a second connecting hole (13) positioned upwardly spaced from the first connecting hole (12), and the extension part (21) can be connected to the bracket (10) by being bent downward after being sequentially inserted into the first connecting hole (12) and the second connecting hole (13).

[0047] A first connecting hole (12) that is positioned above the projection (11) and penetrates through, and a second connecting hole (13) that is positioned above the first connecting hole (12) and penetrates through, may be formed in the bracket (10), and an extension part (21) that extends upward from the upper part of the connecting tab (20) may extend from the upper part of the first through hole (22), and with the projection (11) inserted into the first through hole (22), the extension part (21) may be bent downward after penetrating the first through hole (22) and the second through hole (23) in sequence.

[0048] Through this, the bracket (10) and the connecting tab (20) are double-fastened as the extension part (21) is inserted into the first connecting hole (12) and the second connecting hole (13) while the projection part (11) is coupled to the first through hole (22), thereby having the effect of improving the fastening force.

[0049] In addition, the sizes of the first connecting hole (12) and the second connecting hole (13) are formed to correspond to the width of the connecting tab (20), thereby having the effect of distributing the load of the connecting tab (20).

[0050] The protrusion (11) can press the main body (24) and the extension (21) that are overlapped by being bent in a direction intersecting the longitudinal direction while the extension (21) is bent downward.

[0051] The extension part (21) passing through the second connecting hole (13) can be bent downward and overlapped with the main body (24), and while the extension part (21) and the main body (24) are combined, the projection part (11) can be bent in a direction intersecting the longitudinal direction by an external force to fix the main body (24) and the extension part (21).

[0052] As a result, the protrusion (11) is inserted into the first through hole (22), and the extension (21) passes through the first connecting hole (12) and the second connecting hole (13) in sequence and is bent downward, and the overlapping extension (21) and the main body (24) are fixed by being bent in a direction where the protrusion (11) intersects the longitudinal direction, thereby having the effect of improving the fastening force by connecting the connecting tab (20) and the bracket (10) in a triple manner.

[0053] The extension part (21) includes a second through hole (23) through which the end is penetrated, and the extension part (21) can be bent downward and the projection part (11) inserted into the second through hole (23), and the main body (24) and the extension part (21) can be pressed together by bending in a direction intersecting with the longitudinal direction.

[0054] As shown in FIGS. 3 and 6, a second through hole (23) is formed at the end of the extension part (21), and the second through hole (23) can be inserted into the projection part (11) when the extension part (21) is bent downward after passing through the first connecting hole (12) and the second connecting hole (13).

[0055] At this time, the protrusion (11) is bent by an external force while passing through the first through hole (22) and the second through hole (23) simultaneously, thereby simultaneously pressing the main body (24) and the extension part (21) to fasten the extension part (21) and the main body (24) to the bracket (10) simultaneously, and thus has the effect of improving the fastening force.

[0056] A pair of protrusions (11) may be formed spaced apart from each other in a direction that intersects the direction in which the bracket (10) is extended, and a pair of first through holes (22) may be formed to correspond to the protrusions (11).

[0057] As shown in FIGS. 3 and FIGS. 5, the protrusions (11) can be formed as a pair spaced apart in the width direction of the bracket (10) at the bottom of the bracket (10), and the first through holes (22) can also be formed as a pair corresponding to the position where the protrusions (11) are formed. As the pair of protrusions (11) are inserted into the pair of first through holes (22), the effect is to prevent the connecting tab (20) from rotating due to the weight of the airbag when the connecting tab (20) is fastened to the bracket (10).

[0058] The protrusions formed as a pair can be bent in a direction facing each other.

[0059] A pair of protrusions (11) can be fixed so that the connecting tab (20) does not detach from the first through hole (22) by being bent by an external force in a direction facing each other after being inserted into the first through hole (22), and an extension (21) can be fixed by being bent downward and positioned between the pair of protrusions (11) after the extension (21) penetrates the first connecting hole (12) and the second connecting hole (13) and is positioned between the pair of protrusions (11), and then the pair of protrusions (11) can be fixed by being pressed into the extension (21) positioned between them by being bent in a direction facing each other.

[0060] Through this, the bracket (10) and the connecting tab (20) are connected, and the extension part (21) passing through the second connecting hole (13) can be connected.

[0061] A pair of protrusions (11) may be formed spaced apart from each other in a direction intersecting with the direction in which the bracket (10) is extended, and a pair of first through holes (22) and second through holes (23) may be formed to correspond to the protrusions (11).

[0062] A pair of second through holes (23) may also be formed spaced apart in the width direction of the connecting tab (20) to correspond to a pair of protrusions (11), and the protrusions (11) pass through the first through hole (22), pass through the first connecting hole (12) and the second connecting hole (13), and after the pair of second through holes (23) formed in the extension (21) that is bent downward, are each passed through the pair of protrusions (11), they are bent by an external force to fasten the connecting tab (20) to the bracket (10) and simultaneously have the effect of preventing the connecting tab (20) from rotating.

[0063] A bolt hole (14) is formed through the upper part of the bracket (10), and a bolt is inserted into the bolt hole (14) to connect the vehicle body and the bracket (10).

[0064] As shown in FIG. 1, a bolt hole (14) through which a bolt can pass is formed in the upper part of the bracket (10), and the vehicle body and the bracket (10) can be bolted together through the bolt hole (14).

[0065] A washer may be provided between the bolt and the bracket (10), and the washer disperses the pressure of the bolt, thereby preventing the bracket (10) from being damaged by the pressure of the bolt when fastening.

[0066] The bracket (10) further includes a hook (15) that protrudes in a direction intersecting the bolt hole (14) and the direction in which the bracket (10) extends and is connected to the vehicle body, and the vehicle is provided with a hook (15) hole into which the hook (15) is inserted, and the hook (15) can be inserted into the hook (15) hole and temporarily connected before the bracket (10) is connected through a bolt.

[0067] As shown in FIG. 1, a hook (15) is formed on the upper part of the bracket (10) and protrudes in the direction of connection of the bracket (10) at a distance from the bolt hole (14), and a hook (15) hole is provided in the frame of the vehicle so that the hook (15) can be inserted, and the bracket (10) can be bolted after the hook (15) is inserted into the hook (15) hole and temporarily connected.

[0068] This allows workers to work conveniently and has the effect of improving work efficiency.

[0069] A pair of hooks (15) are formed in the bracket (10) at a distance from the bolt hole (14) and the direction in which the bracket (10) extends, and the hook (15) hole can be formed at a position corresponding to the hook (15).

[0070] The hooks (15) are formed as a pair spaced apart from each other in the width direction of the bracket (10), and the hook (15) holes are also formed to correspond to the pair of hooks (15), so that when the pair of hooks (15) are inserted into the hook (15) holes, the bracket (10) can be prevented from rotating.

[0072] Although specific embodiments of the invention have been illustrated and described, it will be obvious to those skilled in the art that the invention may be modified and changed in various ways without departing from the technical spirit of the invention as provided by the following claims. Explanation of the symbols

[0074] 10 : Bracket 11: Protrusion 12: First connecting hole 13: Second connecting hole 14: Bolt hole 15 : Hook 20 : Connection Tab 21 : Extension part 22 : First penetration hole 23 : Second penetration hole 24 : Main body 30 : Curtain airbag

Claims

Claim 1 A vehicle body coupling device for a curtain airbag, comprising: a bracket having an upper portion installed on the roof side of the vehicle body, a lower portion extending downward, formed of a metal material, and a protruding projection formed on the lower portion; and a connecting tab having a lower portion coupled to the curtain airbag, a main body extending upward, a first through hole formed penetrating the main body, and a projection inserted into the first through hole to be coupled to the bracket; wherein the projection is bent by an external force in a direction intersecting the longitudinal direction while inserted into the first through hole to fix the connecting tab, the connecting tab includes an extension portion extending upward from the upper part of the main body, and the bracket includes a first connecting hole positioned upwardly spaced from the projection portion and a second connecting hole positioned upwardly spaced from the first connecting hole, and the extension portion is bent downward after being sequentially inserted into the first connecting hole and the second connecting hole to be connected to the bracket. Claim 2 delete Claim 3 A vehicle body coupling device for a curtain airbag according to claim 1, characterized in that the projection is bent in a direction intersecting the longitudinal direction while the extension is bent downward, and press-fits the overlapping main body and the extension. Claim 4 A vehicle body coupling device for a curtain airbag according to claim 1, wherein the extension part includes a second through-hole through which the end is penetrated, and the extension part is bent downward and the projection part is inserted into the second through-hole, and the main body and the extension part are overlapped by being bent in a direction intersecting the longitudinal direction and pressed together. Claim 5 A vehicle body coupling device for a curtain airbag according to claim 1, characterized in that a pair of protrusions are formed spaced apart from each other in a direction intersecting the direction in which the bracket is extended, and a pair of first through holes are formed to correspond to the protrusions. Claim 6 A body coupling device for a curtain airbag according to claim 5, characterized in that the protrusions formed in a pair are bent in a direction facing each other. Claim 7 A vehicle body coupling device for a curtain airbag according to claim 4, characterized in that a pair of protrusions are formed spaced apart from each other in a direction intersecting the direction in which the bracket is extended, and a pair of first and second through holes are formed to correspond to the protrusions. Claim 8 A vehicle body coupling device for a curtain airbag according to claim 1, characterized in that a bolt hole is formed through the upper portion of the bracket, and a bolt is inserted into the bolt hole to connect the vehicle body and the bracket. Claim 9 A vehicle body coupling device for a curtain airbag according to claim 8, wherein the bracket further includes a hook protruding in a direction intersecting the bolt hole and the direction in which the bracket extends, and the vehicle is provided with a hook hole into which the hook is inserted, and the hook is inserted into the hook hole to be temporarily coupled before the bracket is coupled through a bolt. Claim 10 A vehicle body coupling device for a curtain airbag according to claim 9, characterized in that a pair of hooks are formed spaced apart from a bolt hole in the bracket in a direction intersecting the direction in which the bracket extends, and a hook hole is formed at a position corresponding to the hook.

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