JP2010132115A - Curtain shield airbag mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain shield airbag mounting structure with excellent work efficiency and excellent visibility while automatically holding an inflator mounted on a ceiling module. <P>SOLUTION: This curtain shield airbag mounting structure includes the ceiling module 4 mounted with the inflator 3 in an upper part of a molded ceiling 1 and an inflator holding member 5 arranged to be separate by a prescribed length at a position corresponding to the inflator 3 in an upper part of the inflator 3. The inflator holding member 5 includes a base plate 8 fixed to a body of a vehicle, a holding means H for automatically holding the inflator 3 by lifting up the ceiling module 4, and a locking means for locking a state in which the inflator 3 is held by a pair of brackets B1 and B2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a curtain shield airbag mounting structure, and more particularly to a curtain shield airbag mounting structure capable of automatically holding an inflator.

  Recently, automobiles have been equipped with curtain shield airbags to protect passengers when subjected to strong impacts due to collisions from the side of the vehicle. (For example, refer to Patent Documents 1 and 2).

  As shown in FIG. 7, such a curtain shield airbag has a roof side extending from a front pillar (not shown) at the upper edge side periphery of an opening such as a door inside the vehicle to the vicinity of the rear pillar 120 via the center pillar 110. The rail portion 100 is configured by arranging the folded airbag 130 for a long time.

  As shown in FIG. 8, such a roof side rail portion 100 is coupled to a roof side rail 140 as a vehicle body extending in the longitudinal direction of the vehicle and an edge portion of the roof side rail 140 via an opening trim 150. The formed ceiling 160 and an airbag 130 attached to the roof side rail 140 on the upper side near the end of the formed ceiling 160 are provided. The roof side rail 140 includes a roof side inner panel 140a and an outer panel 140b, and a closed loop space G is formed by connecting the flanges of the roof side inner panel 140a and the outer panel 140b to each other. .

  The airbag 130 is fixed to the roof side inner panel 140 in a folded state. An inflator 170 for injecting gas for inflating the air bag 130 is placed on a curved portion 190a of a support plate 190 made of an iron plate or the like fastened with bolts 180a, nuts 180b, etc. on the lower surface side of the roof side inner panel 140a.・ It is fixed.

  In such a roof side rail portion 100, when a strong impact is received from the side surface direction of the vehicle, gas is detected from the inflator 170 by a soft liner (not shown) by a sensor (not shown) disposed at a lower position of the center pillar 110 or the like. The gas is introduced into the airbag 130 via the gas introduction unit 200, and the airbag 130 is deployed in a curtain shape to protect the occupant. 7 and 8, reference numeral 130a denotes an assist grip bracket, 210 denotes a jump base made of sheet metal, 220 denotes an air bag body mounting portion, and 230 denotes an inflator bracket.

  By the way, in the roof side rail part 100 of such a structure, when attaching the inflator 170 as a ceiling module, as shown in FIG. 9, the hole 310 for inserting the tool 300 for inflator attachment is formed in the shaping | molding ceiling 160, for example. Two holes need to be provided apart from each other, and when the tool insertion hole 310 is formed in the molded ceiling 160, the hole 310 must be closed with a closing lid 320 having a claw member 320a, for example. was there. Furthermore, the molded ceiling 160 having a configuration in which the closure lid 320 is attached to the hole 310 has a problem that the appearance is poor and the visibility is poor.

Japanese Patent Laid-Open No. 10-138858 JP 2008-137403 A

  The present invention has been made to solve the above-mentioned problems, and provides a curtain shield airbag mounting structure that automatically holds an inflator mounted on a ceiling module, has good workability, and has excellent visibility. The purpose is to do.

  The curtain shield airbag mounting structure according to the first aspect of the present invention includes a ceiling module in which an inflator is mounted on an upper part of a molded ceiling, and a predetermined length apart from the upper part of the inflator at a position corresponding to the inflator. The inflator holding member is provided with holding means for automatically holding the inflator by lifting the ceiling module upward.

  According to a second aspect of the present invention, in the curtain shield airbag mounting structure according to the first aspect, the holding means includes a pair of brackets that can be opened and closed by a spring member.

  According to a third aspect of the present invention, in the curtain shield airbag mounting structure according to the second aspect, the inflator holding member includes a base plate fixed to a vehicle body, and the pair of brackets are respectively connected to the base plate via flanges. Are rotatably supported.

  According to a fourth aspect of the present invention, in the curtain shield airbag mounting structure according to the second aspect or the third aspect, the inflator holding member includes a lock unit that locks the state in which the inflator is held by the pair of brackets. It is.

  According to the curtain shield airbag mounting structure of the first to fourth aspects of the present invention, the inflator can be automatically held by the inflator holding member by lifting the ceiling module upward. Since it is not necessary to provide a hole for inserting an inflator mounting tool in the molded ceiling as in the prior art, and it is not necessary to form a hole for inserting a tool in the molded ceiling, a claw member is provided as in the prior art. There is no need to prepare a closure lid with Therefore, according to the curtain shield airbag mounting structure of the present invention, it is possible to provide a molded ceiling having excellent workability and excellent visual appearance.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The best embodiment to which the curtain shield airbag mounting structure of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a front view showing an example of a curtain shield airbag mounting structure before mounting an inflator in an embodiment of the present invention (explanation in which the vehicle is cut along the width direction and the cut surface is viewed from the rear side of the vehicle). Figure). 7 and 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 1, the curtain shield airbag mounting structure in the present invention corresponds to the ceiling module 4 in which the inflator 3 is mounted on the upper part of the molded ceiling 1 via the temporary placing table 2, and the upper part of the inflator 3 corresponding to the inflator 3. And an inflator holding member 5 disposed at a predetermined distance apart.

  The inflator holding member 5 is disposed at a position corresponding to the inflator 3 at an upper portion of the inflator 1 and spaced apart by a predetermined length. The inflator holding member 5 is fixed to a roof side rail 140 serving as a vehicle body, and on the lower surface side of the base plate 8. And holding means H for automatically holding the inflator 1.

  As shown in FIG. 2, the base plate 8 is connected to a rectangular plate-shaped base plate main body 81 and one side edge portion side of the base plate main body 81 so as to extend obliquely downward, and the roof side inner panel 140a ( 1) and a flat mounting member 82 that is attached to the lower surface side of the base plate body 81 with bolts 180a, nuts 180b (see FIG. 1), etc., and both side corners on the front end side and rear side corners of the base plate body 81, respectively. Tongue-shaped first to fourth pin mounting flanges 83a to 83d projecting downward so as to be orthogonal to the horizontal surface of the base plate main body 81, and on the lower surface side of the base plate main body 81, and attached to the base plate main body 81 Near the center in the longitudinal direction of the continuous portion with the member 82, the surface of the base plate body 81 is perpendicular to the horizontal plane of the base plate body 81 and its own surface is continuously provided And a rectangular plate-shaped shaft plate mounting member 84 projecting so as to be parallel to the longitudinal direction of the first plate S1 in order to mount the first shaft S1 in the vicinity of the shaft plate mounting member 84 of the base plate body 81. The first through holes H1 are provided so as to be orthogonal to the horizontal plane of the base plate body 81, and the first and second coil springs SP1 and SP2 to be described later are located near both side edges on the rear end side of the base plate body 81. First and second locking holes K1 and K2 for inserting and locking one end side of the base plate are provided in a direction perpendicular to the horizontal plane of the base plate body 81. Also, first to fourth insertion holes 86a and 86b (not shown) for mounting pins 85 to be described later are provided on the distal end side (lower end side in the figure) of the first to fourth pin mounting flanges 83a to 83d. , 86c, 86d (not shown) are provided in a direction orthogonal to the vertical surfaces of the first to fourth pin mounting flanges 83a to 83d. Furthermore, a direction in which a second through hole H2 for mounting a second shaft S2 to be described later is orthogonal to the vertical surface of the shaft plate mounting member 84 is provided on the distal end side (lower end portion in the drawing) of the shaft plate mounting member 84. Is provided. In FIG. 2, reference numeral 87 is a semicircular cutout provided in the mounting member 82, and 88a and 88b are through holes provided in the mounting member 82 so as to be orthogonal to the inclined surface of the mounting member 82, 519a. 519b, 530a, and 530b are vertical surfaces of the first and second mounting flanges 515a and 515b, respectively, at the front ends of the first and second mounting flanges 515a and 515b and the third and fourth mounting flanges, respectively. , Claw members projecting in a direction orthogonal to the vertical plane of the third and fourth mounting flanges are shown.

  The holding means H includes a pair of bowl-shaped brackets 51 and 52 that are rotatably disposed between the base plate 8 and the inflator 1.

  As shown in FIG. 2, one bracket 51 (hereinafter referred to as “left bracket”) 51 is orthogonal to the vertical surface of the side surface portion 510 via the side surface portion 510 and the upper edge of the side surface portion 510 via the upper R surface portion 511. An upper surface portion 513 provided horizontally in the direction, and a lower surface portion 514 provided horizontally continuously in a direction perpendicular to the vertical surface of the side surface portion 510 via the lower R surface portion 512 at the lower end edge of the side surface portion 510. The bracket body B1 having a U-shaped cross-sectional view as a whole, and first and second pin attachments that are perpendicular to the horizontal plane of the upper R surface portion 511 and correspond to the both end edges of the upper R surface portion 511 of the bracket body B1, respectively. The first and second mounting flanges 515a and 515b that are continuously provided so as to extend toward the flanges 83a and 83b, and the upper surface portion 513 slightly on the front side from the longitudinal center of the side edges of the upper surface portion 513. A rectangular plate-shaped locking piece 516 that is orthogonal to the plane and connected so that its own surface is parallel to the longitudinal direction of the side edge of the upper surface portion 513, and the upper surface portion 513 on the rear end side of the upper surface portion 513. And a piece-like pushing member 517 connected so that its own surface is parallel to the longitudinal direction of the side edge of the upper surface portion 513, and the first and second mounting flanges First and second insertion holes 518a and 518b for inserting a pin 85 (hereinafter referred to as “first pin 85a”) are provided on the front end side of 515a and 515b, respectively. 515b is provided in a direction perpendicular to the vertical surface of the latch 516b, and the engagement piece 516 is provided with an insertion hole 519 for inserting an insertion portion 92a of the lock member 9 described later in a direction orthogonal to the vertical surface of the engagement piece 516. It has been.

  The other bracket (hereinafter referred to as “right side bracket”) 52 is horizontally provided in a direction perpendicular to the vertical surface of the side surface portion 520 via the upper R surface portion 521 at the upper end edge of the side surface portion 520 and the side surface portion 520. The upper surface portion 523 and the lower surface portion 524 horizontally provided in the direction orthogonal to the vertical surface of the side surface portion 520 via the lower R surface portion 522 at the lower end edge of the side surface portion 520, and as a whole in cross-sectional view U To the third and fourth pin mounting flanges 83c and 83d that are perpendicular to the horizontal surface of the upper R surface portion 521 and correspond respectively to the edge portions of the bracket main body B2 having a letter shape and the upper R surface portion 521 of the bracket main body B2 The locking pieces 516 are inserted into positions corresponding to the third and fourth mounting flanges 525c and 525d that are continuously provided so as to extend and the locking pieces 516 of the left bracket 52 of the upper surface portion 523. As shown in the drawing, the extrusion member 517 can be inserted into a position corresponding to the rectangular insertion hole 526 provided in the direction orthogonal to the horizontal plane of the upper surface portion 523 and the extrusion member 517 of the left bracket 51 of the upper surface portion 523. A rectangular insertion hole 527 provided in a direction orthogonal to the horizontal plane of the upper surface portion 523 and a front end portion side and a rear end portion side of the side edge portion of the upper surface portion 523 are connected stepwise toward the left bracket 51. The first and second contact members 530a and 530b are provided, and a pin 85 (hereinafter referred to as “second pin 85b”) is provided on the tip end side of the third and fourth mounting flanges 525a and 525b. First and second insertion holes 528a and 528b for insertion are provided in a direction orthogonal to the vertical surfaces of the third and fourth mounting flanges 525a and 525b, and the side portion 520 has a half on the lower R surface portion 522 side. Circle Notch 529a, 529b is provided at a distance of.

  The locking means L is disposed on the lower surface side of the base plate body 81, and is attached to the lock member 9 so as to be rotatable in a horizontal plane around the first shaft S1, and on the lower surface side of the base plate body 81 and the shaft plate mounting member 84. A shaft plate 10 disposed on the side facing the lock member 9 and rotatably mounted in a vertical plane with the second shaft S2 as an axis, and a second locking hole K2 between the lock member 9 and the base plate body 81. And a second coiled spring SP2 stretched therebetween.

  As shown in FIG. 3A, the lock member 9 has a rectangular plate-shaped lock member main body 91 having a recessed portion 91a on its lower surface, and one side edge (left side in the figure) of the lock member main body 91. A flat plate-like insertion member 92 projecting from the lower end of the lock member main body 91 in parallel with the surface of the lock member main body 91 and the lower end of the other side edge (right side in the figure) of the lock member main body 91. A flat-plate-like locking member 93 is provided so as to protrude parallel to the surface of the lock member main body 91 and exhibit a step. Further, a screw hole 91b for screwing the first shaft S1 is provided in the vicinity of the center of the lock member main body 91 in a direction perpendicular to the horizontal plane of the lock member main body 91. An insertion portion 92a having a rectangular shape in plan view that can be inserted into the insertion hole 519 of the above-described locking piece 516 protrudes toward the insertion hole 519 on one side edge portion side (front side in the figure), and is a locking member. A locking hole 93b for inserting and locking the other end of the second coil-shaped spring SP2 is provided at a substantially central portion of the locking coil 93 in a direction perpendicular to the horizontal surface of the locking member 93. A locking wall 93a is erected in a direction orthogonal to the horizontal plane of the locking member 93 on one side edge side (the front side in the figure) of the end portion side. In FIG. 3, reference numerals 91c and 92b denote semicircular protrusions.

  As shown in FIG. 3B, the shaft plate 10 is disposed so that its own surface is orthogonal to the horizontal surface of the lock member main body 91 and parallel to the vertical surface of the locking wall 93 a of the locking member 93. The shaft plate main body 10a and the one end side (right side in the figure) of the shaft plate main body 10a are orthogonal to the vertical surface of the locking wall 93a of the locking member 93 and toward the locking wall 93a of the locking member 93. The projecting connecting member 10b is connected to one end (right side in the figure) of the connecting member 10b so that its surface is parallel to the vertical surface of the locking wall 93a of the locking member 93. The contact member 10c is provided, and has a bowl-like shape in plan view as a whole. Further, a through hole 10d through which the second shaft S2 can be inserted is provided in one end side (left side in the drawing) of the shaft plate body 10a in a direction perpendicular to the vertical surface of the shaft plate body 10a.

  FIG. 4 shows a perspective view of an embodiment of the inflator 1 according to the present invention. In this embodiment, the inflator 1 includes a pair of inflator rings 1a and 1b that are spaced apart by a predetermined length, and the interval X between the pair of inflator rings 1a and 1b is the longitudinal direction of the right bracket body B2. Is equal to or slightly larger than the interval of the width Y. This is because it is necessary to fix the inflator 1 in the vehicle width direction.

  Next, a method for assembling the base plate 8, the lock member 9, and the shaft plate 10 as the inflator holding member 5 having such a configuration will be described.

  1, 2, and 3, first, the upper surface of the lock member main body 91 constituting the lock member 9 is brought into contact with the lower surface of the base plate main body 81 constituting the base plate 8, and the first shaft S <b> 1 is moved to the first through hole. The tip is inserted into H1 and screwed into the screw hole 91b. Thereby, the lock member 9 is attached to the lower surface of the base plate main body 81 so as to be rotatable in the horizontal plane with the first shaft S1 as an axis. Next, the vertical surface of the shaft plate main body 10 a of the opposed shaft plate 10 and the vertical surface of the shaft plate mounting member 84 abut, and the vertical surface of the abutting member 10 c of the opposed shaft plate 10 and the lock member 9 are engaged. The second shaft S2 is screwed after contacting the vertical surface of the stop wall 93a and aligning the axis of the through hole 10d of the shaft plate 10 with the axis of the second through hole H2 of the shaft plate mounting member 84. . As a result, the shaft plate 10 is disposed so as to be rotatable in the vertical plane about the second shaft S2. Next, one end of the second coil-shaped spring SP2 is inserted and locked into the second locking hole K2, and the other end is inserted and locked into the locking hole 93b. As a result, a spring force is urged between the locking hole 93b and the second locking hole K2, so that the vertical surface of the contact member 10c of the shaft plate 10 contacts the vertical surface of the locking wall 93a of the lock member 9. The contacted (locked) state is maintained.

  On the other hand, the vertical surfaces of the first and second mounting flanges 515a and 515b of the left bracket B1 and the vertical surfaces of the first and second pin mounting flanges 83a and 83b are brought into contact with each other, and the first and second insertion holes 518a. By attaching the first pin 85a after aligning the axis of 518b with the axis of the first and second insertion holes 86a, 86b of the base plate body 81, the left bracket B1 pivots the first pin 85a. Is arranged so as to be rotatable. Similarly, the vertical surfaces of the third and fourth mounting flanges 525c and 525d of the right bracket B2 are in contact with the vertical surfaces of the third and fourth pin mounting flanges 83c and 83d, and third and fourth insertion holes are made. By attaching the second pin 85b after aligning the axes of 528c and 528d with the axes of the third and fourth insertion holes 86c and 86d of the base plate body 81, the right bracket B2 attaches the second pin 85b. It is rotatably arranged as an axis.

  Further, the first coil-shaped spring SP1 is fitted and inserted into the second pin 85b, and one end thereof is inserted and locked into the first locking hole K1, and the other end is set to the upper surface of the right bracket B2. By making contact with the portion 523, the left bracket B1 and the right bracket B2 are applied to the inflator holding member 5 so that the spring force in the direction opposite to the arrows Y2 and Y3 acts, that is, the lower surface portions of the left bracket B1 and the right bracket B2 at all times. 514 and 524 are configured to open.

  Next, an operation of attaching the inflator 1 to the inflator holding member 5 having such a configuration will be described.

  In FIG. 1, when the ceiling module 4 is raised in the arrow direction Y <b> 1 by a jig (not shown), the top portion of the inflator 1 strikes the upper engaging portion b of the inflator holding member 5, and the ceiling module 4 , The left bracket B1 rotates in the arrow direction Y2 with the first pin 85a as the axis, and similarly, the right bracket B2 also rotates in the arrow direction Y3 with the second pin 85b as the axis. As a result, the inflator 1 is gripped by the pair of left bracket B1 and right bracket B2 as shown in FIG. 5, and this state is locked as described below.

  That is, when the ceiling module 4 is raised in the arrow direction Y1, the left bracket B1 rotates in the arrow direction Y2 around the first pin 85a, and the right bracket B2 rotates in the arrow direction Y3 around the second pin 85b. As shown in FIG. 6A, the locking piece 516 of the left bracket B1 passes through the insertion hole 526 of the right bracket B2, protrudes upward from the upper surface of the upper surface portion 523 of the right bracket B2, and further, The pushing member 517 passes through the insertion hole 527 of the right bracket B2, and the pushing member 517 protrudes upward from the upper surface of the upper surface portion of the right bracket B2. When the pushing member 517 protrudes upward from the upper surface portion of the right bracket B2, as shown in FIG. 6 (b), the shaft plate 10 rotates in the arrow direction Y4 with the second shaft S2 as an axis. Then, the contact member 10c of the shaft plate 10 is lifted upward from the upper surface of the locking wall 93a. As a result, the engagement state between the locking wall 93a of the lock member 9 and the contact member 10c of the shaft plate 10 is released. As a result, the lock member 9 rotates about the first shaft S1 in the arrow direction Y5, The insertion portion 92a constituting the member 9 is inserted into the insertion hole 519 of the locking piece 516 of the left bracket B1. As a result, the state shown in FIG. 6, that is, the locked state is maintained.

  As described above, according to the curtain shield airbag mounting structure of the present invention, the inflator 3 can be automatically held by the inflator holding member 5 by lifting the ceiling module 4 upward. Since there is no need to provide a hole for inserting an inflator mounting tool in the molded ceiling 1 and there is no need to form a hole for inserting a tool in the molded ceiling 1, a claw member is provided as in the prior art. There is no need to prepare a closing lid, and as a result, a molded ceiling with excellent workability and good visual appearance can be provided.

  The present invention has been described with respect to the present invention with specific embodiments shown in the drawings. However, the present invention is not limited to these embodiments, and as long as the effects of the present invention are exhibited. Any configuration known so far can be employed.

The front view which shows an example of the curtain shield airbag attachment structure before mounting of the inflator of this invention. The disassembled perspective view of the inflator holding member in this invention. The expansion perspective view of the lock member and shaft plate in the present invention. The perspective view in one Example of the inflator in this invention. The front view which shows an example of the curtain shield airbag attachment structure after mounting of the inflator of this invention. Explanatory drawing which shows the operation state of the locking means in this invention. The front view seen from the vehicle inner side of the conventional curtain shield airbag attachment structure. AA line sectional view of Drawing 7. Explanatory drawing which shows the attachment state of the obstruction | occlusion lid in the conventional curtain shield airbag attachment structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Molded ceiling 3 ... Inflator 4 ... Ceiling module 5 ... Inflator holding member 8 ... Base plate 515a, 515b ... Flange (1st, 2nd mounting flange)
525c, 525d ... Flange (third and fourth mounting flanges)
51, 52 ... Bracket (left bracket, right bracket)
H: Holding means L ... Locking means

Claims (4)

A ceiling module in which an inflator is mounted on the upper part of the molded ceiling, and an inflator holding member disposed at a position corresponding to the inflator at an upper part of the inflator and spaced apart by a predetermined length,
The curtain shield airbag mounting structure, wherein the inflator holding member includes holding means for automatically holding the inflator by lifting the ceiling module upward.   2. The curtain shield airbag mounting structure according to claim 1, wherein the holding means includes a pair of brackets that can be opened and closed by a spring member. The inflator holding member includes a base plate fixed to a vehicle body,
The curtain shield airbag mounting structure according to claim 2, wherein the pair of brackets are rotatably supported by the base plate via flanges.   4. The curtain shield airbag mounting structure according to claim 2, wherein the inflator holding member includes a lock unit that locks a state in which the inflator is held by the pair of brackets.

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