WO2014061452A1 - カーテンエアバッグ装置 - Google Patents
カーテンエアバッグ装置 Download PDFInfo
- Publication number
- WO2014061452A1 WO2014061452A1 PCT/JP2013/076841 JP2013076841W WO2014061452A1 WO 2014061452 A1 WO2014061452 A1 WO 2014061452A1 JP 2013076841 W JP2013076841 W JP 2013076841W WO 2014061452 A1 WO2014061452 A1 WO 2014061452A1
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- WIPO (PCT)
- Prior art keywords
- bracket
- cushion
- vehicle
- curtain airbag
- airbag device
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/201—Packaging straps or envelopes for inflatable members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/214—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in roof panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/237—Inflatable members characterised by the way they are folded
Definitions
- the present invention relates to a curtain airbag device provided with a cushion portion that inflates and deploys along a side portion in a vehicle compartment for the purpose of protecting an occupant at the time of a side collision or rollover (rollover) of the vehicle.
- an air bag is almost standard equipment as a safety device.
- a general airbag an impact is detected by a sensor, and gas is generated from an inflator (gas generating device) along with this, and a cushion portion is inflated and deployed by the gas pressure.
- the cushion part is folded and stored in the center of the steering wheel if it is a front airbag, for example, and is wound and stored near the upper side of the side door if it is a curtain airbag, for example.
- the cushion part at the time of storage needs to hold the above-described folded or wound state.
- the cushion portion is housed in a housing that also serves as a horn switch, so that the housing form is maintained.
- the curtain airbag is not provided with a dedicated housing that can be accommodated in its entirety because the cushion portion has a long shape, and its accommodation form is maintained using tape or the like (for example, Patent Document 1).
- a mounting bracket (so-called bracket) is used for mounting the cushion portion to the vehicle. Then, by wrapping the tape around the cushion portion and the bracket, the cushion portion is coupled to the bracket while maintaining the storage form of the cushion portion.
- bracket a mounting bracket
- an adhesive tape is used, as long as the tape is not reapplied, the displacement of the cushion portion cannot be allowed, and there is no problem that the attachment work becomes complicated due to the adhesive force.
- the present invention provides a curtain airbag device that can connect the cushion portion and the bracket with a simple configuration and simple operation, and that can fully hold the storage form of the cushion portion.
- the purpose is that.
- a typical configuration of a curtain airbag device includes a cushion portion mounted in a vehicle in a slender shape by being wound or folded, and a vehicle interior.
- a bracket that is attached to the wall portion, and a winding member that is wound around and connected to the cushion portion and the bracket in the form of a storage band, and the bracket includes a base portion having a horizontally long insertion hole, A portion that extends upward from the base, and that protrudes upward from the base on both sides of the vehicle fixing portion in the width direction of the vehicle fixing portion that contacts and is fixed to the wall portion, and is higher than the vehicle fixing portion.
- the winding member has a root portion connected to the upper edge of the cushion portion, and hook holes provided at both ends in the width direction of the tip, and the winding member is an insertion hole. Through the insertion hole Folded downwardly of the racquet, it is wound toward the lower side of the bracket to the vehicle side, wound cushion portion of the stored configuration, wherein the hooking hole is hooked on the protruding portion, respectively.
- the cushion portion and the bracket can be coupled with a winding member connected to the cushion portion in a simple procedure.
- the winding member can be wound without loosening while avoiding interference with the vehicle fixing portion. Therefore, it is possible to fully maintain the storage form of the cushion portion and stabilize the deployment behavior.
- the protrusion is lower than the vehicle fixing portion, the length of the winding member can be shortened, and the entire wound portion can be reduced in diameter.
- a typical configuration of a curtain airbag device includes a cushion portion mounted in a vehicle in a slender shape by being wound or folded, and a vehicle interior.
- a bracket attached to the wall portion, a cloth tab that connects the bracket and the cushion portion, and a winding member that is wound around the cushion portion and the bracket in a storage form and is connected to the bracket.
- the bracket is a base portion having an insertion hole, a portion extending upward from the base portion, a vehicle fixing portion that comes into contact with and fixed to the wall portion, and the vehicle fixing portion on both sides in the width direction upward from the base portion.
- the tab is passed through the insertion hole of the bracket and connected to the upper edge of the cushion portion, and the winding member is the upper edge of the cushion portion.
- a base portion connected to at least one of the tabs, and hook holes provided at both ends in the width direction of the tip, the winding member is wound from the root portion toward the vehicle inner side under the bracket, It is wound around the cushion part of a storage form,
- the hooking hole is each hooked on the projection part, It is characterized by the above-mentioned.
- the cushion part and the bracket can be connected by a simple procedure using the above-described tab and winding member. Even in this configuration, since the winding member is hooked on the protrusion, the winding member can be wound without loosening while avoiding interference with the vehicle fixing portion. Therefore, the storage form of the cushion part can be kept sufficiently, and the deployment behavior can be stabilized.
- the protruding portion has a constricted portion that is narrower than other regions on the base side. Providing the constricted portion makes it easier for the hooking hole to be hooked, leading to easier work and stabilization of the storage form.
- the winding member may have elasticity. With this configuration, the hooking hole is easily hooked by the protrusion. Moreover, even if a winding member consists of a nonwoven fabric, it can implement
- the wrapping member may have a fragile portion that breaks as the cushion portion expands and deploys. With this configuration, the cushion portion can be inflated and deployed more smoothly.
- the fragile portion may be a slit formed in a broken line shape, whereby a fragile portion that is easily broken can be suitably realized.
- the cushion part in the above-described storage form may be mounted on the vehicle in contact with the inside of the base. Since the cushion portion is in contact with the base portion, the cushion portion can obtain a reaction force from the base portion toward the vehicle inner side when inflated and deployed. Further, since the cushion portion is in contact with the base portion, the swinging of the cushion portion at the time of inflating and deploying is suppressed, thereby stabilizing the deployment behavior. By these, if it is the said structure, it will become possible to generate
- the bracket described above is plate-shaped, and may have a step portion along the width direction at the lower portion of the vehicle fixing portion so that the base portion is separated from the wall portion toward the vehicle inner side.
- the winding member is not sandwiched between the bracket and the wall portion. Therefore, for example, it is possible to prevent the winding member from being fixed in a kinked state and affecting the posture of the cushion portion.
- the above insertion holes may be bent at both ends in the longitudinal direction upward. With this configuration, stress concentration at both ends of the insertion hole can be suppressed, and the occurrence of cracks and the like can be prevented.
- the curtain airbag device has a cover that covers a part of the cushion portion along the longitudinal direction of the cushion portion in the storage form, and the protruding portion is inserted into the cover after the winding member is wound. You may connect with this.
- the cover it is possible to prevent the occurrence of unexpected behavior such as, for example, the behavior of rotating when the cushion portion is inflated and deployed, and to efficiently deploy in the intended direction. Furthermore, it becomes possible to unitize these easily by making it a structure connected with a cover by a projection part.
- the curtain airbag device has a cover that covers a part of the cushion portion along the longitudinal direction of the cushion portion in the storage form, the protrusion has a hole at the tip, and the winding member is wound around The pin of the cover may be inserted into the hole and connected thereto. Even if it is this structure, generation
- the protrusion may have a hole at the tip, and after the winding member is wound, a clip may be attached to the hole. According to this configuration, the winding member can be prevented from being detached from the bracket.
- the curtain airbag apparatus which can connect a cushion part and a bracket with simple structure and easy operation
- FIG. 1 is a diagram illustrating a curtain airbag device according to an embodiment of the present invention.
- FIG. 1A illustrates the storage form of the cushion portion 102 of the curtain airbag device (hereinafter referred to as “airbag 100”), and
- FIG. 1B illustrates the time when the cushion portion 102 is deployed.
- the technical idea of the present invention is not limited to curtain airbags, and can be widely used for airbag devices in which cushion portions such as side airbags are wound or folded.
- the cushion part 102 illustrated in FIG. 1A is a part that inflates and deploys in an emergency to protect an occupant.
- This cushion part 102 is wound and becomes a long and narrow storage form in the front and rear of the vehicle, and is mounted and mounted on a wall part (roof side rail 104) above the side part in the vehicle interior.
- the roof trim (not shown) covers the roof side rail 104, the stored cushion portion 102 is invisible from the vehicle interior.
- the storage form of the cushion part 102 of this embodiment is implement
- the airbag 100 includes an inflator 106 that is a gas generator.
- the cushion portion 102 is expanded by the pressure of the gas supplied from the inflator 106 to restrain the occupant.
- a sensor not shown
- the inflator 106 includes a type that uses combustion gas, a type that uses compressed gas, and the like.
- each gas or both gases are supplied to the cushion portion 102.
- the cushion portion 102 expands and develops downward along the side surface portion (side window 110 or the like) of the passenger compartment as illustrated in FIG. Provide protection.
- the cushion portion 102 is formed by weaving using OPW (One-Piece Woven) in this embodiment.
- the cushion portion 102 can be formed by stacking and sewing two base cloths constituting the surface, or by bonding the two base cloths. By these methods, the cushion part 102 is formed in a bag shape.
- a plurality of brackets 112 are provided on the upper portion of the airbag 100 in order to attach the cushion portion 102 to the vehicle 108.
- the bracket 112 is a metal member and is fixed to the roof side rail 104 after being connected to the cushion portion 102.
- FIG. 2 is a diagram illustrating the configuration of part A in FIG. 2A is an enlarged perspective view near the bracket 112, and FIG. 2B is an exploded view of FIG.
- a belt-like winding member 114 is provided on the upper edge of the cushion portion 102.
- hooking holes 116a and 116b are provided at both ends in the width direction. After the winding member 114 is wound, the hooking holes 116a and 116b are respectively hooked on the protrusions 118a and 118b of the bracket 112, so that the cushion portion 102 and the bracket 112 are connected to each other as shown in FIG. is doing.
- the bracket 112 illustrated in FIG. 2B is formed by bending a plate-like metal.
- the bracket 112 is provided with a bolt hole 120. By passing a bolt (not shown) through the bolt hole 120, the bracket 112 is fastened to the roof side rail 104 (see FIG. 1B).
- the base portion 122 is a portion having a horizontally long insertion hole 124 provided in the lower portion of the bracket 112.
- the winding member 114 is passed through the insertion hole 124.
- Both ends 124a and 124b in the longitudinal direction of the insertion hole 124 are curved upward, thereby suppressing stress concentration when a load is applied from the winding member 114 and preventing the occurrence of cracks and the like.
- This shape also has an effect of preventing the winding member 114 from being folded and twisted at both ends 124a and 124b.
- a vehicle fixing portion 126 extends in a square shape above the base portion 122.
- the vehicle fixing portion 126 is provided with the above-described bolt hole 120 and hook portions 128a and 128b facing the vehicle side (right rear side in the figure) at the side edges in the width direction.
- the hook portions 128a and 128b are portions for positioning when the bracket 112 is attached, and are inserted into the roof side rail 108 prior to fastening of the bolts to the bolt holes 120.
- Protrusions 118 a and 118 b are provided above the base portion 122 and on both sides in the width direction of the vehicle fixing portion 126.
- the protrusions 118a and 118b have a shape protruding upward from the base 122, and the hooking holes 116a and 116b of the winding member 114 are hooked.
- a winding member 114 is provided on them. Wrapped.
- the winding member 114 is made of a breakable material and breaks along with the expansion and deployment of the cushion portion 102 to open the cushion portion 102. Note that the winding member 114 may be provided with a broken-line slit 130 as a fragile portion so that breakage occurs smoothly.
- FIG. 3 is a diagram illustrating the back side of FIG. As illustrated in FIG. 3, the winding member 114 is installed in a wound state by the hook holes 116 a and 116 b being hooked on the protrusions 118 a and 118 b of the bracket 112.
- the material of the winding member 114 is a non-woven fabric, but a material having stretchability is preferable because the hooking holes 116a and 116b are more easily hooked on the protrusions 118a and 118b.
- the winding member 114 since the height of the protrusions 118a and 118b is lower than the vehicle fixing portion 126, the winding member 114 is wound and the hooking holes 116a and 116b of the protrusions 134a and 134b are hooked. At this time, the margin of the cloth of the winding member 114 can be reduced. As a result, the winding member 114 itself can be shortened and loosening can be removed, so that the diameter of the cushion portion 102 after winding can be reduced.
- FIG. 4 is a diagram illustrating the bracket 112 of FIG. 2B from the front inside the vehicle.
- constricted portions 136 a and 136 b are respectively provided at the bases of the protruding portions 118 a and 118 b on the base portion 122 side, and are narrower than the other regions.
- This is a structure for facilitating the hooking holes 116a and 116b of the winding member 114 in FIG. 2 (b) to facilitate work and stabilize the storage form.
- the protrusions 118a and 118b are set to a height (height h2) that is at least lower than the height h1 of the vehicle fixing portion 126. This is a configuration for efficiently hooking the winding member 114 of FIG. The intention of this configuration will be described with reference to FIG.
- FIG. 5 is a diagram illustrating a process of winding the winding member 114 of FIG. Each of these figures corresponds to the BB cross section of FIG.
- the winding member 114 is passed through the insertion hole 124 from the vehicle inner side (left side in the figure).
- the winding member 114 is folded downward, wound further toward the vehicle inner side (left side in the figure), and wound around the cushion portion 102 in the storage form.
- the hooking hole 116b is hooked and installed on the protrusion 118b.
- the winding member 114 is configured to be hooked on the protrusion 118 b (and the protrusion 118 a) lower than the vehicle fixing portion 126. Even if the member 114 has a relatively short configuration, the member 114 can be wound, and there is little room for sagging after winding. At the same time, the diameter of the roll-shaped cushion portion 102 can be reduced.
- the cushion portion 102 and the bracket 112 can be coupled with a simple configuration and a simple procedure.
- the storage form of the cushion portion 102 can be fully retained without sagging, and the deployment behavior can be stabilized.
- the cushion portion 102 in the storage form is mounted on the vehicle 108 (see FIG. 1A) in contact with the vehicle inner side (left side in the drawing) of the base portion 122.
- the cushion portion 102 can obtain a reaction force from the base portion 122 toward the vehicle inner side during inflation and deployment.
- the cushion portion 102 is in contact with the base portion 122, the swinging of the cushion portion 102 at the time of inflating and deploying is suppressed, thereby stabilizing the deployment behavior.
- the airbag 100 it is possible to efficiently generate the deployment behavior toward the target direction in the cushion portion 102.
- the bracket 112 is provided below the vehicle fixing portion 126 so that the base portion 122 is separated from the wall portion (the roof side rail 104 in FIG. 1A) to the vehicle inner side.
- a stepped portion 138 is provided. As illustrated in FIG. 4, the stepped portion 138 is provided along the width direction of the vehicle fixing portion 126.
- the winding member 114 is not sandwiched between the bracket 112 and the roof side rail 104. Therefore, for example, it can be prevented that the winding member 114 is fixed in a kinked state and the posture of the cushion portion 102 is affected.
- the position of the cushion portion 102 in the stored state can be adjusted by causing the base portion 122 to protrude further toward the vehicle interior by the stepped portion 138.
- FIG. 6 is a diagram illustrating a C portion of FIG. 1A, and FIG. 6A is an enlarged perspective view of the C portion.
- the cover 140 in FIG. 6A is made of resin, has a shape along the longitudinal direction of the cushion portion 102 in the storage form, and covers a part of the cushion portion 102.
- the cover 140 has an effect of preventing unexpected behavior such as, for example, behavior of rotating when the cushion portion 102 is inflated and deployed. As a result, the cushion portion 102 can be efficiently deployed in a target direction (for example, a vehicle interior direction).
- the bracket 112 can be connected to the cover 140 using the protrusion 118a.
- the protrusion 118 a is provided with holes 142 a and 142 b at the tip thereof.
- FIG. 6B is a diagram illustrating the inside of the cover 140 by omitting the cushion portion 102 of FIG.
- the pins 140a and 144b are provided on the cover 140, and these pins 144a and 144b are inserted into the holes 142a and 142b to be connected.
- FIG. 6C is an enlarged view of the pin 144a of FIG. 6B.
- the pin 144a protrudes toward the vehicle inner side (front side in the figure). With this pin 144a, the bracket 112 and the cover 140 can be easily unitized. At this time, since the step portion 138 (see FIG. 6B) is provided in the bracket 112, even if the bracket 112 is combined with the cover 140, the vehicle fixing portion 126 can be mounted on the roof side rail 104 (see FIG. 1 (a)).
- FIG. 7 is a modification of the curtain airbag device according to the embodiment of the present invention.
- the bracket 200 illustrated in FIG. 7A and the cover 202 illustrated in FIG. 7B are different in configuration from those illustrated in FIG.
- FIG. 7A illustrates a bracket 200 corresponding to FIG.
- the basic structure and function of the bracket 200 are the same as those of the bracket 112 of FIG.
- the protrusions 204a and 204b are portions where the hook holes 116a and 116b of the winding member 114 (FIG. 2B) are hooked, and the height is the vehicle fixing portion 126. Lower than.
- the protrusions 204a and 204b have a rounded triangular or trapezoidal shape.
- the airbag can be connected to the case using the protrusions 204a and 204b.
- FIG. 7B is a diagram in which the bracket 200 and the cover 202 in FIG.
- the cover 202 also has a function of adjusting the behavior of the cushion portion 102 (see FIG. 6A), similarly to the cover 140 of FIG.
- the cover 202 is provided with insertion portions 206a and 206b into which the protrusions 204a and 204b of the bracket 200 are inserted.
- FIG.7 (c) is an enlarged view of the insertion part 206a of FIG.7 (b).
- FIG. 7C a part of the cover 202 is notched for convenience.
- the protrusion 204a is inserted into the insertion portion 206a from below. Then, the lower ends of the inserted protrusions 204a serve as “barbed”, and these are connected. With this configuration, the bracket 200 (and the cushion portion 102 (see FIG. 6A)) and the cover 202 can be easily unitized.
- FIG. 8 is a modification of the bracket.
- FIG. 8A illustrates a bracket 300 corresponding to FIG.
- the basic function and configuration of the bracket 300 are the same as those of the brackets 112 and 200.
- the protrusions 302a and 302b are portions where the hooking holes 116a and 116b shown in FIG. 2B are hooked, and the height thereof is lower than that of the vehicle fixing portion 126.
- the projections 302a and 302b have a rectangular shape in which the holes 304a and 304b are different from the holes 142a and 142b in FIG.
- FIG. 8B is a diagram in which the clip 310 is attached to the bracket 300 of FIG.
- the bracket 300 can attach the clip 310 to the hole 304a (and the hole 304b) after installing the winding member 114 (see FIG. 2B).
- the clip 310 is made of resin and is attached so as to sandwich the protrusion 302a from both sides. According to this configuration, it is possible to prevent the winding member 114 from being detached from the bracket 300.
- FIG. 9 is a further modification of the curtain airbag device according to the embodiment of the present invention.
- the curtain airbag device (airbag 400) illustrated in FIG. 9 is different from the airbags described above in the order of assembly of the members.
- FIG. 9 illustrates an assembly process of the airbag 400.
- the tab 402 is passed through the insertion hole 124 of the bracket 112 from the lower end 402a side in the drawing.
- the tab 402 is a cloth member installed on the upper edge of the cushion portion 102, like the tab 132 illustrated in FIG.
- the tab 402 of the present modification has a shape in which the lower end 402a and the upper end 402b extend left and right (front and rear of the vehicle) in the figure as if the H-shape was tilted 90 °.
- the tab 402 is passed through the insertion hole 124 up to the center of the tab 402, and then the one end 402a and the other end 402b are overlapped with each other and joined by welding or sewing, for example (see FIG. 4B).
- the shape of the tab 402 is not limited to this.
- the one end 402a side is simply a free end extending in a band shape, and the free end may pass through the insertion hole 124 and be fastened to the other end 402b side. Is possible.
- the winding member 114 is connected to the tab 402.
- Positioning holes 408a and 408b are provided in the base portion 406 of the tab 402 (the place where one end 402a and the other end 402b in FIG. 4A are combined) and the winding member 114, respectively.
- the tab 402 and the winding member 114 can be positioned by passing predetermined pins (not shown) through the positioning holes 408a and 408b.
- FIG. 9C the base portion 406 of the positioned tab 402 and the root portion 115 of the winding member 114 are connected by temporary sewing (tab assay 410).
- FIG. 10 is a diagram illustrating an assembly process of the curtain airbag device (airbag 400) continued from FIG.
- a positioning hole 408c is also provided on the upper edge of the cushion portion 102, and the tab assay 410 can be positioned using a predetermined pin. It has become.
- the tab assay 410 thus positioned is connected to the cushion portion 102 by sewing as illustrated in FIG. 10B. After the tab assay 410 and the cushion portion 102 are assembled, the cushion portion 102 is wound from below to form a roll body.
- FIG. 10D is a view corresponding to the DD cross section of FIG. From the state of FIG. 10 (d), assembly is performed in the same manner as described with reference to FIGS. 5 (a) to 5 (c). That is, the winding member 114 is wound around the cushion portion 102 in the storage form from the root portion 115 to the vehicle inner side below the bracket 112, and the hooking holes 116a and 116b are hooked on the protrusions 118a and 118b, respectively, and are fastened. . At that time, if the wound member 114 is wound so that the wound cushion portion 102 is somewhat tightened, the diameter of the cushion portion 102 can be further reduced, and in addition, the holding power of the winding can be improved. is there.
- the cushion portion 102 and the bracket 112 can be coupled by a simple procedure even with the configuration including the tab 402 and the winding member 114. Also in this modification, since the winding member 114 is hooked on the protrusions 118a and 118b, the winding member 114 is wound loosely while avoiding interference of the winding member 114 with the vehicle fixing portion 126. be able to. Therefore, the storage form of the cushion part 102 can be maintained sufficiently, and the deployment behavior can be stabilized.
- the present invention can be used for a curtain airbag device provided with a cushion portion that inflates and deploys along a side surface portion of a vehicle interior for the purpose of protecting an occupant during a vehicle side collision or rollover (rollover).
Abstract
Description
図7は、本発明の実施形態にかかるカーテンエアバッグ装置の変形例である。図7(a)に例示するブラケット200、および図7(b)に例示するカバー202は、それぞれ形状の点で、図6等に例示したものと構成が異なっている。
図8は、ブラケットの変形例である。図8(a)は、図4に対応して、ブラケット300を例示している。このブラケット300もまた、基本的な機能および構成はブラケット112・200と同じである。例えば、突起部302a・302bは、図2(b)の引掛孔116a・116bを引っ掛ける部位であり、その高さは車両固定部126よりも低い。しかし、突起部302a・302bは、その孔部304a・304bが、図4の孔部142a・142bと異なり、四角形状になっている。
Claims (13)
- 巻回または折り畳まれることで細長な形状の収納形態となって車両に搭載されるクッション部と、
車室内の壁部に取り付けられるブラケットと、
帯状であって前記収納形態のクッション部と前記ブラケットとに巻きつけられてこれらを連結する巻付部材と、を備え、
前記ブラケットは、
横長の挿通孔を有する基部と、
前記基部から上方へ延びた部位で、前記壁部に接触してこれに固定される車両固定部と、
前記車両固定部の幅方向両脇にてそれぞれ前記基部から上方へ突出し、該車両固定部よりも高さが低い突起部と、を有し、
前記巻付部材は、前記クッション部の上縁に接続される根元部と、先端の幅方向両端にそれぞれ設けられた引掛孔を有し、
前記巻付部材は、前記挿通孔に通され、該挿通孔から前記ブラケットの下方へ折り返されて、該ブラケットの下方から車内側へ向かって巻かれ、前記収納形態のクッション部に巻きつけられ、前記引掛孔がそれぞれ前記突起部に引っ掛けられていることを特徴とするカーテンエアバッグ装置。 - 巻回または折り畳まれることで細長な形状の収納形態となって車両に搭載されるクッション部と、
車室内の壁部に取り付けられるブラケットと、
前記ブラケットと前記クッション部を連結する布製のタブと、
帯状であって前記収納形態のクッション部と前記ブラケットとに巻きつけられてこれらを連結する巻付部材と、を備え、
前記ブラケットは、
挿通孔を有する基部と、
前記基部から上方へ延びた部位で、前記壁部に接触してこれに固定される車両固定部と、
前記車両固定部の幅方向両脇にてそれぞれ前記基部から上方へ突出し、該車両固定部よりも高さが低い突起部と、を有し、
前記タブは、前記ブラケットの前記挿通孔に通されて、前記クッション部の上縁に接続され、
前記巻付部材は、前記クッション部の上縁および前記タブの少なくとも一方に接続される根元部と、先端の幅方向両端にそれぞれ設けられた引掛孔を有し、
前記巻付部材は、前記ブラケットの下方にて前記根元部から車内側へ向かって巻かれ、前記収納形態のクッション部に巻きつけられ、前記引掛孔がそれぞれ前記突起部に引っ掛けられていることを特徴とするカーテンエアバッグ装置。 - 前記突起部は、前記基部側に他の領域よりも幅が細くなっているくびれ部を有することを特徴とする請求項1または2に記載のカーテンエアバッグ装置。
- 前記巻付部材は、伸縮性を有することを特徴とする請求項1から3のいずれか1項に記載のカーテンエアバッグ装置。
- 前記巻付部材は、不織布から成ることを特徴とする請求項1から4のいずれか1項に記載のカーテンエアバッグ。
- 前記巻付部材は、前記クッション部の膨張展開にともなって破断する脆弱部を有することを特徴とする請求項1から5のいずれか1項に記載のカーテンエアバッグ装置。
- 前記脆弱部は、破線状に形成されたスリットであることを特徴とする請求項6に記載のカーテンエアバッグ装置。
- 前記収納形態のクッション部は、前記基部の車内側に接して車両に搭載されることを特徴とする請求項1から7のいずれか1項に記載のカーテンエアバッグ装置。
- 前記ブラケットは板状であって、前記基部が前記壁部から車内側へ離間するよう、前記車両固定部の下部にその幅方向に沿った段差部を有していることを特徴とする請求項1から8のいずれか1項に記載のカーテンエアバッグ装置。
- 前記挿通孔は、長手方向の両端が上方へ湾曲していることを特徴とする請求項1から9のいずれか1項に記載のカーテンエアバッグ装置。
- 当該カーテンエアバッグ装置は、前記収納形態のクッション部の長手方向に沿って該クッション部の一部を覆うカバーを有し、
前記突起部は、前記巻付部材が巻きつけられた後、前記カバーに挿し込まれてこれに連結することを特徴とする請求項1から10のいずれか1項に記載のカーテンエアバッグ装置。 - 当該カーテンエアバッグ装置は、前記収納形態のクッション部の長手方向に沿って該クッション部の一部を覆うカバーを有し、
前記突起部は先端に孔部を有し、前記巻付部材が巻きつけられた後、該孔部に前記カバーのピンが挿入されてこれと連結することを特徴とする請求項1から10のいずれか1項に記載のカーテンエアバッグ装置。 - 前記突起部は先端に孔部を有し、前記巻付部材が巻きつけられた後、該孔部にクリップが取り付けられることを特徴とする請求項1から10のいずれか1項に記載のカーテンエアバッグ装置。
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EP13846855.8A EP2910432B1 (en) | 2012-10-19 | 2013-10-02 | Curtain airbag device |
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EP3165410B1 (en) | 2018-04-18 |
EP2910432A4 (en) | 2016-07-13 |
US20150291119A1 (en) | 2015-10-15 |
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JPWO2014061452A1 (ja) | 2016-09-05 |
US9487175B2 (en) | 2016-11-08 |
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JP5922250B2 (ja) | 2016-05-24 |
EP2910432A1 (en) | 2015-08-26 |
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