Apparatus for mounting curtain air bag cushion

Abstract

The present invention relates to a fixing device for a curtain airbag cushion, comprising an intermediate connecting tab (200) and a strap (400) that are connected to the curtain airbag cushion (1) and the sewing (300), a mounting plate (100) connected to the intermediate connecting tab (200), and a lamp bracket (600) that is assembled with the mounting plate (100) and fixedly connected to the vehicle body (2) together with the mounting plate (100), wherein the assembly of the mounting plate (100) and the lamp bracket (600) is achieved by passing the connecting hook (160) of the mounting plate (100) through the hook hole (640) of the lamp bracket (600).

Description

Technology Field

[0001] The present invention relates to a fixing device for a curtain airbag cushion, and more specifically, to a technology for a fixing device for a curtain airbag cushion that improves assembly and workability and reduces working time when a folded curtain airbag cushion is fixedly attached to a vehicle body. Background Technology

[0002] Generally, vehicles are equipped with various types of airbag devices to protect passengers in the event of an accident; among these, curtain airbags are mounted on the side panels of the vehicle body and protect passengers by deploying downwards as the airbag cushion unfolds in the event of a rollover or side collision.

[0003] In this curtain airbag device, a folded airbag cushion in a circular shape is typically fixed to the upper part of the body pillar via a lamp bracket, and the folded airbag cushion deploys to protect the upper body, including the passenger's head, by the pressure of the airbag gas generated from the inflator. When the airbag cushion deploys, the lamp bracket guides the direction of deployment of the airbag cushion to prevent interference between the airbag cushion and the body trim.

[0004] When fixing the lamp bracket combined with the folded airbag cushion to the side panel of the vehicle body, bolts (or screws) are used, and in order to maintain the strong connection of the bolts, a steel mounting plate is attached to the part of the lamp bracket through which the bolt passes.

[0005] However, conventionally, the structure involves a worker applying external force to the mounting plate to bend a portion of it and connecting the mounting plate and the lamp bracket through the bent area. This results in inconvenient assembly and workability between the lamp bracket and the mounting plate, and consequently, a disadvantage in that the time required to secure the curtain airbag cushion to the vehicle body is excessive.

[0006] 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

[0007] Republic of Korea Published Patent Application No. 10-2003-0097137 The problem to be solved

[0008] The present invention provides a fixing device for a curtain airbag cushion used when securely attaching a folded curtain airbag cushion to a vehicle body, wherein the device is connected to the curtain airbag cushion with a flexible material and assembled to the vehicle body with a rigid material. The purpose of the invention is to prevent damage to the curtain airbag cushion while maintaining assembly torque during attachment to the vehicle body, and to improve assembly and workability by preventing sagging.

[0009] In addition, another objective of the present invention is to improve the assemblability and workability of the lamp bracket and the mounting plate to shorten the overall assembly time and thereby improve productivity. means of solving the problem

[0010] The fixing device for a curtain airbag cushion according to the present invention for achieving the above-mentioned purpose comprises: a lamp bracket into which a folded curtain airbag cushion is inserted; a mounting plate assembled with the lamp bracket and installed to be fixed to a vehicle body together with the lamp bracket; an intermediate connecting tab coupled to the mounting plate; and a strap that wraps around the curtain airbag cushion inserted in the lamp bracket in a circumferential direction, with one end sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end connected to the mounting plate to fix the curtain airbag cushion.

[0011] The other end of the strap is characterized by being connected to the mounting plate as it passes through the mounting plate and is then directly hooked and fixed to the mounting plate.

[0012] A fixing member is attached to the other end of the strap; and the other end of the strap is connected to the mounting plate via the fixing member as the fixing member penetrates the mounting plate and is secured by being hooked onto the mounting plate.

[0013] The lamp bracket and the mounting plate are fixedly installed on the vehicle body as a bolt that integrally penetrates the lamp bracket and the mounting plate is coupled to the vehicle body; the mounting plate is characterized by being formed of steel material to prevent sagging caused by the load of the intermediate connecting tab, the strap, and the curtain airbag cushion.

[0014] The above mounting plate is characterized by having a first through-hole through which a strap passes and a second through-hole through which an intermediate connecting tab passes, formed spaced apart vertically.

[0015] The above intermediate connecting tab is formed of a flexible fabric material, and is characterized by having both ends that penetrate the second through-hole of the mounting plate overlap each other, and the lower portion of the second through-hole being sewn together with one end of the curtain airbag cushion and the strap.

[0016] The above strap is formed of a flexible fabric material, and is characterized by having one end inserted between the curtain airbag cushion and the intermediate connecting tab and sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end wrapping around the curtain airbag cushion in the circumferential direction and then penetrating the first through hole of the mounting plate.

[0017] The lower sides of the mounting plate are provided with a catch; a catch hole is formed at the other end of the strap so that the catch passes through and is caught; and the other end of the strap is directly caught on the mounting plate and fixed by the combination of the catch and the catch hole.

[0018] The above fixing member is characterized by being coupled to a strap such that both ends of the fixing member protrude to both sides of the strap; and after the fixing member penetrates a mounting plate, both ends of the fixing member are hooked onto the back surface of the mounting plate to be fixed.

[0019] The fixing member is characterized by being formed of either steel or plastic having rigidity so that the fixing member can be fixed by being hooked onto the back surface of the mounting plate after penetrating the mounting plate.

[0020] The above-mentioned mounting plate has a coupling hook integrally formed therein that protrudes toward the lamp bracket; the lamp bracket has a hook hole formed therein through which the coupling hook passes; and the lamp bracket and the mounting plate are assembled together as the coupling hook passing through the hook hole is hooked onto the back surface of the lamp bracket and fixed.

[0021] The coupling hook is characterized by having a vertical length greater than the vertical length of the hook hole so that the coupling hook penetrating the hook hole can be hooked onto the back of the lamp bracket and fixed.

[0022] When the above coupling hook is formed to protrude from both sides of the mounting plate, the anti-rotation projection formed on the lamp bracket contacts the upper surface of the mounting plate when the lamp bracket and the mounting plate are assembled; and the mounting plate is characterized by being prevented from rotating by contact with the anti-rotation projection.

[0023] When the above coupling hook is formed to protrude from the upper surface of the mounting plate, the anti-rotation projection formed on the lamp bracket contacts both sides of the mounting plate when the lamp bracket and the mounting plate are assembled; and the mounting plate is characterized by being prevented from rotating by contact with the anti-rotation projection. Effects of the invention

[0024] The fixing device for a curtain airbag cushion according to the present invention comprises an intermediate connecting tab and a strap sewn together with the curtain airbag cushion, a mounting plate coupled to the intermediate connecting tab, and a lamp bracket assembled with the mounting plate and fixedly coupled to the vehicle body together with the mounting plate. Since the mounting plate is formed of steel, sufficient assembly torque can be maintained when assembled to be fixed to the vehicle body via a bolt, thereby strengthening the fastening force with the vehicle body and improving the problem of the curtain airbag cushion detaching from the vehicle body.

[0025] In addition, since the mounting plate of the present invention is formed of steel material, it is possible to prevent sagging caused by the load of the intermediate connecting tab, strap, and curtain airbag cushion. This enables the mounting plate to maintain its shape, thereby improving the assembly and workability of the worker during assembly with the vehicle body using bolts.

[0026] In addition, the present invention has the effect of preventing damage to the curtain airbag cushion caused by the intermediate connecting tab and strap during sewing, as the intermediate connecting tab and strap are formed of a flexible fabric material for sewing connection with the curtain airbag cushion.

[0027] In addition, the present invention is configured such that the mounting plate and the lamp bracket are assembled by passing the coupling hook of the mounting plate through the hook hole of the lamp bracket, thereby improving the assemblability and workability of the mounting plate and the lamp bracket, which enables a reduction in the overall assembly time and thereby has the effect of promoting increased productivity. Brief explanation of the drawing

[0028] FIG. 1 is a front view of a folded curtain airbag cushion fixed via a fixing device according to the present invention. FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1, FIG. 3 is an exploded view of a curtain airbag cushion fixing device according to the present invention. FIG. 4 is a drawing in which the lamp bracket and mounting plate are assembled in FIG. 3, and one end of the curtain airbag cushion, intermediate connecting tab, and strap is sewn together. FIG. 5 is a drawing for explaining the state in FIG. 4 where the strap wraps around the curtain airbag cushion, then penetrates the mounting plate, and is then hooked onto the mounting plate to be fixed. FIG. 6 is a drawing for explaining a hook hole formed in a lamp bracket and a coupling hook formed in a mounting plate according to the present invention. FIG. 7 is a drawing for explaining another embodiment of a coupling hook and an anti-rotation projection according to the present invention. FIGS. 8 and 9 are drawings for explaining another embodiment in which a curtain airbag cushion is fixed by a strap as the fixing member coupled to the strap and the fixing member is hooked onto a mounting plate and fixed according to the present invention. Specific details for implementing the invention

[0029] 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.

[0030] 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 they include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0031] Terms such as "first," "second," etc., may be used to describe various components, but said components shall 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.

[0032] 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.

[0033] The terms used herein are merely for describing 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 described 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.

[0034] 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.

[0035] A control unit (controller) according to an exemplary embodiment of the present invention may be implemented through a non-volatile memory (not shown) configured to store data relating to an algorithm configured to control the operation of various components of a vehicle or software instructions for executing said algorithm, and a processor (not shown) configured to perform the operation described below using the data stored in said memory. Here, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single chip integrated with each other. The processor may take the form of one or more processors.

[0036] Hereinafter, a fixing device for a curtain airbag cushion according to a preferred embodiment of the present invention will be examined with reference to the attached drawings.

[0037] A vehicle's curtain airbag system includes an inflator that generates airbag gas and a curtain airbag cushion that deploys upon receiving the airbag gas.

[0038] The inflator and curtain airbag cushion are installed on the upper body of the vehicle pillar, and upon activation, the curtain airbag cushion deploys downward to protect the passengers.

[0039] The fixing device according to the present invention is used when installing a curtain airbag cushion to be fixed to the upper body of the vehicle pillar section.

[0040] That is, the fixing device for a curtain airbag cushion according to the present invention comprises: a lamp bracket (600) into which a curtain airbag cushion (1) in a folded state rolled into a circle is inserted, as shown in FIGS. 1 to 9; a mounting plate (100) assembled with the lamp bracket (600) and installed to be fixed to the vehicle body (2) together with the lamp bracket (600); an intermediate connecting tab (200) coupled with the mounting plate (100); and a strap (400) that wraps around the curtain airbag cushion (1) inserted into the lamp bracket (600) in a circumferential direction, one end of which is sewn (300) together with the curtain airbag cushion (1) and the intermediate connecting tab (200), and the other end of which is connected to the mounting plate (100) to fix the curtain airbag cushion (1).

[0041] The lamp bracket (600) includes a body part (610) formed in a hemispherical arc shape and a connecting part (620) connected to the body part (610).

[0042] A curtain airbag cushion (1) in a folded state that is rolled into a circular shape is inserted into the body portion (610) of the lamp bracket (600), and the connecting portion (620) is formed to protrude from the body portion (610) and is installed to be fixed to the vehicle body (2) together with the mounting plate (100) via a bolt (500).

[0043] A mounting plate (100) is positioned in front of a lamp bracket (600), and a bolt (500) passes through the mounting plate (100) and the lamp bracket (600) and is then connected to the vehicle body (2). To this end, bolt holes (110, 630) are formed in the upper part of the mounting plate (100) and the lamp bracket (600) so that the bolt (500) can pass through.

[0044] It is preferable that the mounting plate (100) be formed of steel so as to prevent sagging caused by the load of the intermediate connecting tab (200), the strap (400), and the curtain airbag cushion (1).

[0045] When the mounting plate (100) is formed of steel, sufficient assembly torque can be maintained when the mounting plate (100) is assembled to be fixed to the vehicle body (2) via a bolt (500), thereby strengthening the fastening force with the vehicle body (2) and improving the problem of the curtain airbag cushion (1) detaching from the vehicle body (2).

[0046] In addition, since the mounting plate (100) is formed of steel material, sagging caused by the load of the intermediate connecting tab (200), strap (400), and curtain airbag cushion (1) can be prevented, and through this, the shape of the mounting plate (100) can be maintained, thereby improving the assembly and workability of the worker when assembling with the vehicle body (2) using bolts (500).

[0047] According to the present invention, a first through hole (120) through which a strap (400) passes and a second through hole (130) through which an intermediate connecting tab (200) passes are formed in the mounting plate (100) at an upper and lower interval.

[0048] As another example, a single through hole may be formed in the mounting plate (100) through which the intermediate connecting tab (200) and the strap (400) can pass together.

[0049] The intermediate connecting tab (200) is formed of a flexible fabric material, and both ends that pass through the second through hole (130) of the mounting plate (100) are overlapped with each other, and the lower portion of the second through hole (130) is sewn (300) together with one end of the curtain airbag cushion (1) and the strap (400) so that the curtain airbag cushion (1), the intermediate connecting tab (200), and the strap (400) become a structure in which they are integrally joined.

[0050] The strap (400) is formed of a flexible fabric material and is inserted between the curtain airbag cushion (1) and the intermediate connecting tab (200) and sewn (300) together with the curtain airbag cushion (1) and the intermediate connecting tab (200), and the other end wraps around the curtain airbag cushion (1) in the circumferential direction, then passes through the first through hole (120) of the mounting plate (100) and is connected to the mounting plate (100) to fix the curtain airbag cushion (1).

[0051] The selvage portion of the curtain airbag cushion (1) and one end of the intermediate connecting tab (200) and the strap (400) are sewn together (300) to form an integrated structure, and for the sewing (300) connection, it is preferable that the intermediate connecting tab (200) and the strap (400) be formed from a flexible fabric material.

[0052] In addition, since the intermediate connecting tab (200) and the strap (400) are formed of a flexible fabric material, there is also an advantage in that damage to the curtain airbag cushion (1) caused by the intermediate connecting tab (200) and the strap (400) can be prevented when sewing (300) with the curtain airbag cushion (1).

[0053] As described above, one end of the strap (400) is inserted between the curtain airbag cushion (1) and the intermediate connecting tab (200), so that the curtain airbag cushion (1), one end of the strap (400), and the intermediate connecting tab (200) can be sewn together (300) in that order.

[0054] As another example, one end of the strap (400) may overlap the back of the intermediate connecting tab (200) and be sewn together (300) in the order of the curtain airbag cushion (1), the intermediate connecting tab (200), and one end of the strap (400).

[0055] As shown in FIGS. 3 to 5, an embodiment according to the present invention has a structure in which one end of the strap (400) is sewn (300) together with the curtain airbag cushion (1) and the intermediate connecting tab (200), and the other end wraps around the curtain airbag cushion (1) in a circumferential direction, then passes through the first through hole (120) of the mounting plate (100), and is then directly hooked onto the mounting plate (100) to be fixed.

[0056] To this end, a hook portion (150) is provided at the bottom of the mounting plate (100) so as to protrude downward, and a hook hole (410) is formed at the other end of the strap (400) so that the hook portion (150) passes through and is hooked. By the combination of the hook portion (150) and the hook hole (410), the other end of the strap (400) is directly hooked to the mounting plate (100) and fixed.

[0057] One end of the strap (400) is sewn (300) together with the curtain airbag cushion (1) and the intermediate connecting tab (200), and the other end of the strap (400) wraps around the curtain airbag cushion (1) in the circumferential direction and then passes through the first through hole (120) of the mounting plate (100) and protrudes to the rear of the mounting plate (100). A catch hole (410) is formed in the other end of the strap (400) that protrudes to the rear of the mounting plate (100), so that when the lower end of the mounting plate (100) is passed through the catch hole (410), the catch portion (150) of the mounting plate (100) is caught on the catch hole (410) of the strap (400), thereby the other end of the strap (400) is caught and fixed on the catch portion (150) of the mounting plate (100). It becomes a structure.

[0058] It may also be possible to configure the mounting plate (100) so that, instead of the catch portion (150) protruding from both sides at the bottom of the mounting plate (100), a cut portion is formed by partially cutting the back of the mounting plate (100) in a U-shape to serve the same role as the catch portion (150).

[0059] Another embodiment of the present invention may be structured such that, as shown in FIGS. 8 and 9, a fixing member (700) is attached to the other end of a strap (400), and the fixing member (700) passes through the first through hole (120) of the mounting plate (100) and is then hooked onto the back of the mounting plate (100) to be fixed, thereby connecting the other end of the strap (400) to the mounting plate (100) through the fixing member (700).

[0060] The fixing member (700) is formed in the shape of a straight rod and is fixedly connected to the other end of the strap (400), and when connected to the strap (400), both ends of the fixing member (700) are connected so as to protrude to both sides of the strap (400).

[0061] One end of the strap (400) is sewn (300) together with the curtain airbag cushion (1) and the intermediate connecting tab (200), and the other end of the strap (400) wraps around the circularly folded curtain airbag cushion (1) in the circumferential direction and then protrudes to the rear of the mounting plate (100) by passing through the first through hole (120) of the mounting plate (100) together with the fixing member (700).

[0062] When the fixing member (700) passes through the first through hole (120) of the mounting plate (100) together with the other end of the strap (400) and protrudes to the rear of the mounting plate (100), the strap (400) is pulled downward by the weight of the circularly folded curtain airbag cushion (1), and as a result, both ends of the fixing member (700) are caught on the back of the mounting plate (100) and fixed, thereby the circularly folded curtain airbag cushion (1) becomes a structure fixed by the strap (400).

[0063] According to the present invention, it is preferable that the vertical width of the fixing member (700) be formed smaller than the vertical width of the first through hole (120) so that the fixing member (700) can penetrate the first through hole (120) of the mounting plate (100).

[0064] Additionally, it is preferable that the left-right length of the fixing member (700) be formed longer than the left-right length of the first through hole (120) so that the fixing member (700) can be fixed by being hooked onto the back of the mounting plate (100) after passing through the first through hole (120).

[0065] In addition, according to the present invention, it is preferable that the fixing member (700) be formed as a rigid structure so that it can be fixed by being hooked onto the back surface of the mounting plate (100) after passing through the first through hole (120), and the rigid structure may be either steel or plastic.

[0066] According to the present invention, the mounting plate (100) and the lamp bracket (600) have a structure in which they are directly assembled to each other. To this end, a coupling hook (160) protruding toward the lamp bracket (600) is integrally formed on the mounting plate (100), and a hook hole (640) through which the coupling hook (160) passes is formed on the lamp bracket (600). As the coupling hook (160) passing through the hook hole (640) is hooked onto the back surface of the lamp bracket (600) and fixed, the mounting plate (100) and the lamp bracket (600) are assembled to each other.

[0067] It is preferable that the vertical length (L1) of the coupling hook (160) be formed with a larger dimension than the vertical length (L2) of the hook hole (640) so that the coupling hook (160) passing through the hook hole (640) can be hooked and fixed to the back of the lamp bracket (600). Therefore, when passing the coupling hook (160) through the hook hole (640), the coupling hook (160) is twisted in one direction to pass through.

[0068] As shown in FIGS. 3 to 6, when the coupling hook (160) is formed to protrude from both sides of the mounting plate (100), the anti-rotation projection (650) formed on the lamp bracket (600) comes into contact with the upper surface of the mounting plate (100) when the lamp bracket (600) and the mounting plate (100) are assembled, and the mounting plate (100) is structured so that rotation is prevented by contact with the anti-rotation projection (650).

[0069] As another example, as shown in FIG. 7, when the coupling hook (160) is formed to protrude from the upper surface of the mounting plate (100), the anti-rotation projection (650) formed on the lamp bracket (600) comes into contact with both sides of the mounting plate (100) when the lamp bracket (600) and the mounting plate (100) are assembled, and the mounting plate (100) is structured so that rotation is prevented by contact with the anti-rotation projection (650).

[0070] As described above, the fixing device for a curtain airbag cushion according to an embodiment of the present invention comprises an intermediate connecting tab (200) and a strap (400) that are connected to the curtain airbag cushion (1) and the sewing (300), a mounting plate (100) connected to the intermediate connecting tab (200), and a lamp bracket (600) assembled with the mounting plate (100) and fixedly connected to the vehicle body (2) together with the mounting plate (100). Since the mounting plate (100) is formed of steel material, sufficient assembly torque can be maintained when assembled to be fixed to the vehicle body (2) via a bolt (500), thereby strengthening the fastening force with the vehicle body (2), which has the advantage of improving the problem of the curtain airbag cushion (1) detaching from the vehicle body (2).

[0071] In addition, since the mounting plate (100) is formed of steel material, the present invention can prevent sagging caused by the load of the intermediate connecting tab (200), strap (400), and curtain airbag cushion (1), and thereby enables the mounting plate (100) to maintain its shape, which has the advantage of improving the assembly and workability of the worker when assembling with the vehicle body (2) using bolts (500).

[0072] In addition, the present invention has the advantage that the intermediate connecting tab (200) and the strap (400) are formed of a flexible fabric material for sewing (300) with the curtain airbag cushion (1), thereby preventing damage to the curtain airbag cushion (1) by the intermediate connecting tab (200) and the strap (400) during sewing (300) connection.

[0073] In addition, the present invention is configured such that the mounting plate (100) and the lamp bracket (600) are assembled by passing the coupling hook (160) of the mounting plate (100) through the hook hole (640) of the lamp bracket (600), thereby improving the assemblability and workability of the mounting plate (100) and the lamp bracket (600), which allows for a reduction in the overall assembly time and thereby has the advantage of promoting increased productivity.

[0074] Although the present invention has been illustrated and described in relation to specific embodiments, it will be obvious to those skilled in the art that the present invention can 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

[0075] 1 - Curtain airbag cushion 2 - Vehicle body 100 - Mounting plate 110 - Bolt hole 120 - 1st penetration hole 130 - 2nd penetration hole 150 - Catching part 160 - Connecting hook 200 - Intermediate connecting tab 300 - Sewing 400 - Strap 410 - Hook hole 500 - Bolt 600 - Lamp Bracket 610 - Body part 620 - Connection part 630 - Bolt hole 640 - Hook hole 650 - Anti-rotation projection 700 - Fixing member L1 - Vertical length of the coupling hook L2 - Vertical length of the hook hole

Claims

Claim 1 A fixing device for a curtain airbag cushion, comprising: a lamp bracket into which a folded curtain airbag cushion is inserted; a mounting plate assembled with the lamp bracket and installed to be fixed to the vehicle body together with the lamp bracket; an intermediate connecting tab coupled to the mounting plate; and a strap that wraps around the curtain airbag cushion inserted in the lamp bracket in a circumferential direction, with one end sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end connected to the mounting plate to fix the curtain airbag cushion; wherein the other end of the strap penetrates the mounting plate and is directly hooked onto the mounting plate to be fixed, thereby connecting the other end of the strap to the mounting plate. Claim 2 delete Claim 3 A fixing device for a curtain airbag cushion, comprising: a lamp bracket into which a folded curtain airbag cushion is inserted; a mounting plate assembled with the lamp bracket and installed to be fixed to the vehicle body together with the lamp bracket; an intermediate connecting tab coupled to the mounting plate; and a strap that wraps around the curtain airbag cushion inserted in the lamp bracket in a circumferential direction, with one end sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end connected to the mounting plate to fix the curtain airbag cushion; a fixing member coupled to the other end of the strap; and as the fixing member penetrates the mounting plate and is hooked onto the mounting plate to be fixed, the other end of the strap is connected to the mounting plate via the fixing member. Claim 4 A fixing device for a curtain airbag cushion according to claim 1, wherein the lamp bracket and the mounting plate are fixedly installed on the vehicle body by a bolt that integrally penetrates the lamp bracket and the mounting plate and is coupled to the vehicle body; and wherein the mounting plate is formed of steel material to prevent sagging caused by the load of the intermediate connecting tab, the strap, and the curtain airbag cushion. Claim 5 A fixing device for a curtain airbag cushion, comprising: a lamp bracket into which a folded curtain airbag cushion is inserted; a mounting plate assembled with the lamp bracket and installed to be fixed to the vehicle body together with the lamp bracket; an intermediate connecting tab coupled to the mounting plate; and a strap that wraps around the curtain airbag cushion inserted in the lamp bracket in a circumferential direction, with one end sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end connected to the mounting plate to fix the curtain airbag cushion; wherein the mounting plate has a first through hole through which the strap passes and a second through hole through which the intermediate connecting tab passes are formed spaced apart vertically. Claim 6 A fixing device for a curtain airbag cushion according to claim 5, wherein the intermediate connecting tab is formed of a flexible fabric material, the two ends penetrating the second through hole of the mounting plate are overlapped with each other, and the lower portion of the second through hole is sewn together with one end of the curtain airbag cushion and the strap. Claim 7 A fixing device for a curtain airbag cushion according to claim 5, wherein the strap is formed of a flexible fabric material, one end is inserted between the curtain airbag cushion and the intermediate connecting tab and sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end wraps around the curtain airbag cushion in a circumferential direction and then passes through the first through hole of the mounting plate. Claim 8 A fixing device for a curtain airbag cushion according to claim 1, wherein a catch portion is provided on both lower sides of the mounting plate; a catch hole is formed at the other end of the strap so that the catch portion passes through and is caught; and the other end of the strap is directly caught on the mounting plate and fixed by the combination of the catch portion and the catch hole. Claim 9 A fixing device for a curtain airbag cushion according to claim 3, wherein the fixing member is coupled to a strap such that both ends of the fixing member protrude to both sides of the strap; and after the fixing member penetrates a mounting plate, both ends of the fixing member are hooked onto the back surface of the mounting plate to be fixed. Claim 10 A fixing device for a curtain airbag cushion according to claim 9, characterized in that the fixing member is formed of either steel or plastic having rigidity so that the fixing member can be fixed by being hooked onto the back surface of the mounting plate after penetrating the mounting plate. Claim 11 A fixing device for a curtain airbag cushion, characterized by comprising: a lamp bracket into which a folded curtain airbag cushion is inserted; a mounting plate assembled with the lamp bracket and installed to be fixed to the vehicle body together with the lamp bracket; an intermediate connecting tab coupled to the mounting plate; and a strap that wraps around the curtain airbag cushion inserted in the lamp bracket in a circumferential direction, with one end sewn together with the curtain airbag cushion and the intermediate connecting tab, and the other end connected to the mounting plate to fix the curtain airbag cushion; a connecting hook protruding toward the lamp bracket is integrally formed on the mounting plate; a hook hole through which the connecting hook passes is formed in the lamp bracket; and the lamp bracket and the mounting plate are assembled together as the connecting hook passing through the hook hole is hooked onto the back of the lamp bracket and fixed. Claim 12 A fixing device for a curtain airbag cushion according to claim 11, characterized in that the vertical length of the coupling hook is formed to be larger than the vertical length of the hook hole so that the coupling hook penetrating the hook hole can be hooked onto the back of the lamp bracket and fixed. Claim 13 A fixing device for a curtain airbag cushion according to claim 11, wherein, when the coupling hook is formed to protrude from both sides of the mounting plate, the anti-rotation projection formed on the lamp bracket contacts the upper surface of the mounting plate when the lamp bracket and the mounting plate are assembled; and the mounting plate is prevented from rotating by contact with the anti-rotation projection. Claim 14 A fixing device for a curtain airbag cushion according to claim 11, wherein when the coupling hook is formed to protrude from the upper surface of the mounting plate, the anti-rotation projection formed on the lamp bracket contacts both sides of the mounting plate when the lamp bracket and the mounting plate are assembled; and the mounting plate is prevented from rotating by contact with the anti-rotation projection.

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