Source: http://www.google.com/patents/US8096574?ie=ISO-8859-1
Timestamp: 2016-02-14 09:11:23
Document Index: 175684760

Matched Legal Cases: ['arts 120', 'arts 120', 'arts 120', 'arts 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120']

Patent US8096574 - Air bag system for vehicle - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsAn air bag system for a vehicle including a cover for housing an air bag in a folded state along a side of a roof of the vehicle is provided. The cover includes a pair of opposed walls approximately parallel to each other, a connection wall that connects the pair of the opposed walls, an opening that...http://www.google.com/patents/US8096574?utm_source=gb-gplus-sharePatent US8096574 - Air bag system for vehicleAdvanced Patent SearchPublication numberUS8096574 B2Publication typeGrantApplication numberUS 12/243,163Publication dateJan 17, 2012Filing dateOct 1, 2008Priority dateOct 4, 2007Also published asUS20090091105Publication number12243163, 243163, US 8096574 B2, US 8096574B2, US-B2-8096574, US8096574 B2, US8096574B2InventorsKohei Okimoto, Naoki TakemuraOriginal AssigneeHonda Motor Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (27), Non-Patent Citations (6), Referenced by (6), Classifications (8), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetAir bag system for vehicle
US 8096574 B2Abstract
1. An air bag system for a vehicle comprising a cover for housing an air bag in a folded state along a side of a roof of the vehicle,
a connection wall that connects the pair of opposed walls
an opening that is defined by the pair of opposed walls and opens downward,
a bent section that is formed to be bent three-dimensionally upward and inward so as to extend along a face shape of the vehicle body where the cover is installed;
9. The air bag system for a vehicle according to claim 1, wherein
one of the pair of opposed walls on the vehicle exterior side further comprises an outer-side wall face, and
the outer-side wall face at the bent section downwardly extends lower than the outer-side wall face at other positions along a longitudinal direction of the cover.
10. The air bag system for a vehicle according to claim 2, wherein
11. The air bag system for a vehicle according to claim 3, wherein
12. The air bag system for a vehicle according to claim 4, wherein
13. The air bag system for a vehicle according to claim 5, wherein
14. The air bag system for a vehicle according to claim 6, wherein
15. The air bag system for a vehicle according to claim 7, wherein
16. The air bag system for a vehicle according to claim 8, wherein
a continuous cover installed along the roof side rail and extending along a longitudinal direction of the vehicle body from the front pillar to the rear pillar, the cover including a pair of opposed walls approximately parallel to each other and a connection wall that connects the pair of opposed walls, the opposed walls and connection wall defining a housing portion having an opening that opens downward, the opening receiving an air bag in a folded state, the cover further including an integral first reinforcement rib extending outwardly from the opposed wall on a vehicle exterior side and downwardly past the opposed wall on the vehicle exterior side and the housing opening, the first reinforcement rib configured to abut the roof side rail on a vehicle interior side,
the housing portion having a bent section that is formed to be bent three-dimensionally upward and inward at the position of the roof side rail where the upper end of one of the pillars is connected to the roof side rail so as to avoid the upper end, one of the pair of opposed walls of the bent section on a vehicle exterior side downwardly extends lower than that opposed wall at other positions along the housing portion; and
20. An air bag system for a vehicle comprising a cover for housing an air bag in a folded state along a side of a roof of the vehicle,
a sub-locking portion provided on the opposed wall on the vehicle exterior side, the sub-locking portion having a sub-locking bracket connected to the opposed wall on the vehicle exterior side and a sub-locking member provided on the sub-locking bracket for tentatively connecting the cover to the roof side, the sub-locking bracket at least partially defining a finger-insert on the vehicle interior side of the sub-locking portion as space on the vehicle interior side, wherein the finger-insert allows a pushed load to be applied on the vehicle interior side of the sub-locking member. Description
This application claims the foreign priorities benefit under 35 U.S.C. �119 of Japanese Patent Applications No. 2007-260679 filed on Oct. 4, 2007 and 2007-260608 filed on Oct. 4, 2007, the disclosures of which are incorporated herein by reference.
As disclosed in U.S. Pat. No. 5,921,575, an air bag system for a vehicle has been known, which unfolds and expands an air bag in a curtain manner over a side face of the vehicle interior, serving as a passenger protection system to protect an occupant's head when the vehicle undergoes a side impact or roll-over accident.
As shown in FIG. 8, the air bag system A houses a rolled air bag 330 in a cover 310, and is installed to the vehicle body in such a manner that a clip (also referred to as a “locking portion”) 360 is inserted through a lock hole 300 a of the roof side rail 300.
In another conventional air bag system A, as disclosed in JP 2006-88846 A, pushed load is applied onto a cover 310 housing a rolled air bag 330 when the cover 310 is installed to a roof side rail 300, whereby the cover 310 deforms to be flat, which causes a pushing stroke loss or pushed load loss. Further, the conventional air bag A has another disadvantage that the rolled air bag 330 hinders an operator from checking the position of the clip 360 relative to a lock hole 300 a of the roof side rail 300.
As shown in FIG. 1, on each side of the vehicle body 11, a front pillar 13 provided at a front side of the front seat (not shown), a center pillar 24 in the vicinity of a center of the vehicle body 11 between the front seats and the rear seats (not shown), a quarter pillar 15 provided at a rear side of the rear seats, and a rear pillar 16 are respectively jointed to a roof side rail 17 at the respective upper ends thereof, and a floor (not shown) and the roof 12 are also jointed via the above-mentioned pillars 13, 14, 15 and 16. A door opening portion 11 a is provided between the front pillar 13 and the center pillar 14 of the vehicle body 11, where a side door on the front seat side is installed. A door opening portion 11 b is provided between the center pillar 14 and the quarter pillar 15 of the vehicle body 11, where a side door on the rear seat side is installed.
As shown in FIG. 2, the roof side rail 17 is a frame member that forms a peripheral edge of an upper portion 11 c of the door opening portions 11 a, 11 b, and an upper portion of the side rail 17 is jointed to the roof 12 (see FIG. 1), and an lower portion thereof is jointed to the pillars such as the center pillar 14 and the quarter pillar 15. The respective joint portions of the roof side rail 17 to each of the pillar 13, 14, 15, 16 become thicker by the thickness of each pillar 13, 14, 15, 16, and protrude toward the vehicle interior side. The roof side rail 17 includes an inner member as an inner layer, a center member as a center layer and an outer member as an outermost layer.
As shown in FIG. 1, the air bag system 2 is an occupant protection system for protecting an occupant's head and body, etc. by instantly expanding the air bag 3 installed on the upper portion 11 c of the door opening portions 11 a and 11 b, and the pillars 13, 14, 15, 16 as soon as an impact greater than a predetermined value is applied onto the side of the vehicle 1, due to a side impact accident or the like. The air bag system 2 is a so-called curtain air bag system that expands the air bag 3 downward in a curtain manner, as illustrated by the dot line in FIG. 1. The air bag system 2 is provided along the roof side rail 17, extending from the front pillar 13 via the roof side rail 17 to the rear pillar 16. The air bag system 2 includes the air bag 3, the cover 4, an inflator 6 (see FIG. 2), a pipe P, a collision detection sensor (not shown), and an electronic control unit (not shown).
As shown in FIG. 1, the air bag 3 is a bag-like protection that expands between the window glass of the side door and the occupant so as to hold and protect the occupant in the lateral direction, and is formed to be approximately bag-like using two pieces of ground fabric stitched with each other. The air bag 3, in a normal condition before expansion, is housed in the cover 4 in a folded state, as shown in FIGS. 3A to 3D. The air bag 3 is bound with binding bands 5 at predetermined positions along the longitudinal direction of the cover 4, so as to be held in the cover 4. Then, the cover 4 in which the air bag 3 is housed is fixed onto respective brackets 8 (described later) via respective bracket; fixtures 43 b (described later), and then the brackets 8 are fixed onto the roof side rail 17 with fastening members 7 (described later), and also with sub-clips 47 (also referred to as a “sub-locking portions”) (see FIGS. 6A, 6B and 7), thereby to be fixed to the vehicle body 11. The air bag 3 is provided at least at the upper end portion of the air bag 3 with a strap 31 (see FIG. 1) to fix the air bag 3 to the vehicle body 11, and with a plurality of fixing flaps 32 (see FIG. 7) provided at the upper end of the air bag 3. The air bag 3 is designed to expand by gas supplied from the inflator 6, break up the binding bands 5, pushes down and opens up the interior member 9 such as the roof lining 91 (see FIG. 7). Having completely expanded, the air bag 3 begins to shrink when the gas is released.
The opposed wall 41 on the vehicle exterior side is a plate-like member that extends vertically downward from the end of the connection wall 43 on the vehicle exterior side. The opposed wall 41 on the vehicle exterior side is provided with an inner-side wall face 41 a, an outer-side wall face 41 b, fin-like ribs 46 c, sub-clips 47 (see FIGS. 6A, 6B and 7), all of which are integrally formed on the opposed wall 41.
The inner-side wall face 41 a is a surface of the inner wall of the air bag housing portion 45 on the vehicle exterior side, and has a function of guiding the air bag to expand vertically downward when expanding.
The outer-side wall face 41 b is a face opposite to the vehicle body 11 where the cover 4 is provided, on which fin-like ribs 46 c are formed at appropriate positions with an appropriate distance therebetween. The outer-side wall face 41 b of the cover 4 at the bent section 44 is formed to downwardly extend longer (described later) than the outer-side wall faces 41 b at the other sections of the cover 4.
The fin-like ribs 46 c are ribs for reinforcing the opposed wall 41, projecting from the opposed wall 41 toward the vehicle exterior side, and provided at appropriate positions. The fin-like ribs 46 c abut to the surface of the roof side rail 17 on the vehicle interior side, and are supported onto the vehicle body 11.
The opposed wall 42 on the vehicle interior side is a plate-like member, extending vertically downward from the end of the connection wall 43 on the vehicle interior side. As shown in FIGS. 4 and 5, the opposed wall 42 on the vehicle interior side includes an inner-side wall face 42 a that guides, along with the above-mentioned inner-side wall face 41 a, the air bag 3 to expand vertically downward when expanding.
As shown in FIG. 4, the connection wall 43 forms the upper face of the cover 4 and the ceiling face of the air bag housing portion 45, formed in an approximately plane manner. On the upper face of the connection wall 43, bending-prevention ribs 46 a and projecting robs 46 b, pipe-installation portion 43 a (see FIG. 6A), the bracket fixtures 43 b (see FIGS. 1 and 2), and through holes 43 c (see FIG. 7) are formed at respective appropriate positions in the predetermined numbers. In addition, the connection wall 43 is provided on the upper face thereof with the load transmission parts 120 (described later) at appropriate positions along the longitudinal direction of the cover 4.
As shown in FIG. 6A, the pipe installation portion 43 a is a portion for installing in the cover 4 the pipe P, one end of which is attached to the supply port of the air bag 3 in the cover 4. As shown in FIG. 2, the pipe installation portion 43 a is, for example, provided in the vicinity of the joint position between the roof side rail 17 and the quarter pillar 15.
The bracket fixture 43 b (see FIGS. 1 and 2) is a portion to which each bracket 8 is fixed, thereby to fix the cover 4 to the vehicle body 11. In the embodiment of the present invention, as shown in FIG. 2, a pair of the bracket fixtures 43 b are provided on the upper face of the connection wall 43 in the longitudinal direction at each position that corresponds to the respective bracket 8.
As shown in FIG. 7, the through holes 43 c are slit holes for passing the fixing flaps 32 of the air bag 3 from the air bag housing portion 45 of the cover 4 through the upper face of the connection wall 43. In the embodiment of the present invention, the through holes 43 c, for example, are provided on the upper face of the connection walls 43 at appropriate positions that correspond to any two of the brackets 8 a, 8 b, 8 c. <Load Transmission Part>
As shown in FIG. 1, the load transmission parts 120 are provided on the upper face of the connection wall 43 at appropriate positions along the longitudinal direction of the cover 4. In this embodiment of the present invention, for example, a couple of the load transmission parts 120 are provided, one between the bracket 8 a and the bracket 8 b, and the other between the bracket 8 b and the bracket 8 c, as shown in FIGS. 1 and 2. Since both of the load transmission parts 120, 120 have an identical structure, hereinafter, descriptions will be provided only on the load transmission part 120 on the front side of the vehicle 1, with reference to FIGS. 3A and 3D.
As shown in FIG. 3A, the load transmission part 120 chiefly includes three ribs 120 a, 120 a, 120 a in series on the upper face of the connection wall 4, an inner-side wall face 120 b, and an outer-side wall face 120 c. The ribs 120 a, 120 a, 120 a are provided in the direction from the vehicle interior side toward the vehicle exterior side of the vehicle 1. The inner-side wall 120 b is provided along the longitudinal direction of the cover 4 so as to connect each end of the ribs 120 a, 120 a, 120 a on the vehicle interior side, and the outer-side wall face 120 c is provided along the longitudinal direction of the cover 4 so as to connect each end of the ribs 120 a, 120 a, 120 a on the vehicle exterior side. The ribs 120 a, 120 a, 120 a, the inner-side wall face 120 b, and the outer-side wall face 120 c are integrally formed with the cover 4.
The main-clip 60 is formed to be projected from the outer-side wall face 120 c on the vehicle exterior side of the load transmission part 120 toward the vehicle exterior side.
As shown in FIG. 3D that is a cross-sectional view taken on the line E-E of FIG. 3A, the main-clip 60 is inserted into a lock hole 200 a of the roof side rail 17, thereby to fix the cover 4 to the roof side rail 17. The main-clip 60 includes a base end 60 a on the outer-side wall face 120 c side with a width smaller than that of the lock hole 200 a in the cross-sectional view, an intermediate portion 60 b with a width wider than that of the lock hole 200 a, and a tip end 60 c with a width gradually smaller from the intermediate portion 60 b than that of the lock hole 200 a. The main-clip 60 according to this embodiment has a hollow inside thereof, and the intermediate portion 60 b is elastically deformable to become smaller than the width of the lock hole 200 a. In this embodiment, the main-clip 60 is integrally formed with the outer-side wall face 120 c, for example.
As shown in FIG. 2, the bent section 44 of the cover 4 is formed to go along the face shape on the vehicle interior side of the vehicle body 11 at the upper portion 11 c of each pillar such as the center pillar 14, so as to avoid the installed pillars. Specifically, the bent section 44 of the cover 4 is formed such that the cover 4 is bent three-dimensionally upward and inward at the position of the roof side rail 17 where components such as the center pillar 14 and the quarter pillar 15 are installed. Therefore, at the pillars installation positions on the roof side rail 17, the bent section 44 is bent in a three dimensional curve, going along the projected face shape of the installed pillars. As shown in FIGS. 2, 4 and 5, the bent section 44 has reinforcement ribs 46 that extend downward from the outer-side face wall 41 b at the bent section 44.
As shown in FIGS. 3A and 3B, plurality of reinforcement ribs 46 are projectedly formed on the longitudinal outer surface of the cover 4, and these reinforcement ribs 46 are integrally formed with the cover 4 to prevent the deformation of the cover 4. As shown in FIG. 3B, the reinforcement ribs 46 include bending-prevention ribs 46 a for preventing the cover 4 from being curved, projected ribs 46 b, and the fin-like ribs 46 c. The cover 4 may have at least plural reinforcement ribs 46 in parallel to the lateral (width) direction of the vehicle body 11 at least on the connection wall 43.
Each bending-prevention ribs 46 a is a liner rib in the planar view, provided at an approximate center of the connection wall 43 of the cover 4, extending in the longitudinal direction of the cover 4. The bending-prevention rib 46 a is projectedly formed from the surface of the cover 4 in the planar view along the longitudinal direction of the cover 4, chiefly serving for preventing the cover 4 from being bent.
The projection ribs 46 b (see FIGS. 3A, 3B, 4 and 5) are projections provided vertical to the bending-prevention ribs 46 a, and the projection ribs 46 b are projectedly formed from the outer circumferential face of the connection wall 43 to the outer circumferential faces of the opposed walls 42, 43, with a constant distance between each projection rib 46 b. The fin-like ribs 46 c are projections formed on the opposed wall 42 of the cover 4 on the vehicle exterior side, which is provided vertical to the bending-prevention ribs 46 a, with a constant distance between each fin-like ribs 46 c. The fin-like ribs 46 c serve for enhancing the strength and stiffness of the cover 4.
As shown in FIGS. 6A, 6B and 7, the sub-clip 47 is a locking member serving for tentatively fixing the cover 4 to the vehicle body 11 by being engaged into a lock hole 17 a punched through the roof side rail 17, and is integrally formed with the outer-side wall face 41 b of the opposed wall 41 of the cover 4 on the vehicle exterior side (see FIGS. 4 and 5).
The cover 4, fixed to the roof side rail 17 at the above-mentioned position, is provided with sub-locking brackets 130 that extends from the lower end of the opposed wall 41 on the vehicle exterior side and is bent, further extending obliquely downward to the vehicle exterior side. The end portion 130 a of the sub-locking bracket 130 is sloped along the slope angle of the roof side rail 17 face on the vehicle interior side, and there is provide on the end portion 130 a a sub-clip 47 projecting toward the outside of the vehicle body 11.
The sub-clip 47 is inserted through the lock hole 17 a that is punched through the roof side rail 17, thereby to fix the cover 4 via the sub-locking bracket 130 to the roof side rail 17, and is located lower than the connection wall 43 of the cover 4. The sub-clip 47 is formed in the same manner of the main-clip 60 (see FIG. 3A), therefore, detailed explanations thereon will be omitted.
The sub-clip 47 has a finger-insert 130 b on the vehicle interior side, as space on the vehicle interior side separated by the sub-locking bracket 130 that is formed to be bent.
The cover 4 at this position is provided with a sub-locking bracket 140 on the opposed wall 41 on the vehicle exterior side. The sub-locking bracket 140 has a slope face 140 a that is sloped along the slope angle of the face of the roof side rail 17 on the vehicle interior side. On this slope face 140 a, there is provided a sub-clip 47 that is separate from the sub-locking bracket 140. This sub-clip 47 has a seat portion 70 a, which is fit into the slope face 140 a, thereby to project the sub-clip 47 from the slope face 140 a toward the outside of the vehicle body 11. The sub-clip 47 is inserted through the lock hole 17 a of the roof side rail 17, thereby to fix the cover 4 to the roof side rail 17 via the sub-locking bracket 140. The sub-clip 47 is also located lower than the connection wall 43 of the cover 4, as is the same with the above-mentioned sub-clip 47 in FIG. 6B. Note that the sub-clip 47 is formed in the same manner of the main-clip 60 (see FIG. 3A), therefore, detailed explanations on the sub-clip 47 is omitted.
The sub-clip 47 is provided with a finger-insert 140 b on the interior side as space of the vehicle interior side, spaced from the sub-locking bracket 140.
As shown in FIGS. 1 and 2, the brackets 8 a, 8 b, 8 c serve as a fixer that fixes the cover 4 to the vehicle body 11, and each end portion of the brackets 8 a, 8 b, 8 c is attached to the respective bracket fixtures 43 b (see FIGS. 1 and 2). Each of the bracket fixtures 8 a, 8 b, 8 c has a through hole at its center, through which a fastening member 7 such as a bolt is inserted, and the fastening members are screwed to the roof side rail 17 so that the brackets 8 a, 8 b, 8 c are secured to the vehicle body 11.
When installing the air bag 3 to the vehicle body 11, first, the air bag 3 is folded along the longitudinal direction as shown in FIGS. 3A to 3D, and then the folded air bag 3 is stored in the air bag housing portion 45 of the cover 4 (see FIGS. 3A and 3B). The pipe P whose one end is connected to the inflator 6 is attached to the supply port on the air bag 3. Then, the folded air bag 3 is held in the cover 4 by biding the air bag 3 and the cover 4 with the binding bands 5 at appropriate positions of the air bag 3 and the cover 4, as shown in FIG. 2, so as to prevent the air bag 3 from coming off from the cover 4. The strap 31 at the upper front end of the air bag 3 is fixed to the front pillar 13 (see FIG. 1), and the fixing flaps 32 (FIGS. 1 and 2 show only a single flap) provided on the upper end of the air bag 3 at appropriate positions are fixed via the brackets 8 a, 8 b, 8 c to the roof side rail 17.
In the present embodiment, as shown in FIG. 1, the installation of the cover 4 to the roof side rail 17 is carried out at the following positions, for example: P1 of the bracket 8 a using the fastening member 7 (see FIGS. 1 and 2); P2 of the load transmission part 120 between the brackets 8 a and 8 b using the main-clip 60 (see FIG. 3A); P3 of the center pillar 14 using the sub-clip 47 (see FIG. 6B); P4 of the bracket 8 b using the fastening member 7 (FIGS. 1 and 2); P5 of the load transmission part 120 between the brackets 8 b and 8 c using the main-clip 60 (see FIG. 3A); P6 of the quarter pillar 15 using the sub-clip 47 (see FIG. 6A); and P7 of the bracket 8 c using the fastening member 7 (see FIGS. 1 and 2).
As mentioned above, the cover 4 is tentatively fixed to the roof side rail 17, with the main-clips 60 and the sub-clips 47 being inserted into the respective lock holes 200 a and lock holes 37 a, thereby to facilitate installing the cover 4 to the vehicle body 11 via the brackets 8 a, 8 b, 8 c using the fastening members 7.
As shown in FIG. 7, then, the air bag 3 folded in the cover 4 expands and breaks up the binding bands 5 (see FIG. 2), pushes down and opens up the roof lining 91 and the interior member 9 (in the direction of the arrow X), then develops vertically downward (in the direction of the arrow Y) while being guided by the inner-side walls 41 a and 42 a of the opposed wall 41 on the vehicle exterior side and the opposed wall 42 on the vehicle interior side. At this time, the cover 4 has no cover member at the opening 48 so that the cover 4 permanently opens downward; and the pair of opposed walls 41, 42 in parallel, extending approximately vertically downward, so that the opening angle of the opposed walls 41, 42 relative to the vertical direction becomes approximately zero. Thus, the air bag 4 smoothly and instantly expands in the vertical direction, and then develops toward an occupant so as to protect the occupant.
In particular, at the position of the bent section 44 formed in the three dimensional curved line in the plane view, the outer-side wall face 41 b of the opposed wall 41 on the vehicle exterior side is formed to downwardly extend longer, thereby to restrict the expanding direction of the air bag 3 and guide the air bag 3 into the desired direction, as shown in FIGS. 4 and 5. The fin-like ribs 64 c provided on the outer-side wall face 41 b abut against the inner face of the vehicle body 11 and are securely fixed thereon. Since the cover 4 is provided with a plurality of the reinforcement ribs 46 on the connection wall 43 in the lateral (width) direction of the vehicle body 11, the resistance against the external force applied from the lateral direction of the vehicle 11 is enhanced, realizing more proper strength and stiffness.
As shown in FIG. 7, the air bag 3 is guided by the opposed walls 41, 42 and the outer-side wall face 41 b, so that the air bag 3 can expand smoothly and instantly in the vertical direction (in the arrow Y direction) to cover the window opening W of the vehicle 1 rapidly.
As mentioned above, the air bag 3 expands over the side of the front and rear seats (not shown) as if a curtain is dropped over the whole left side of the inner vehicle body 11. Thus, the air bag 3 holds and protects the occupant's head, as well as preventing the occupant from jumping outside of the vehicle 1.
The air back system 2 for a vehicle 1 may be applicable to a vehicle of any type having a structure in which the cover 4 can be installed on the upper portion 11 c of the door openings 11 a and 11 b. Hereinafter, descriptions will be provided on the operational effects by the air bag system 2 according to the present invention.
As shown in FIG. 3D, the air bag system 2 according to the present embodiment, the main-clip 60 is projectedly formed from the outer-side wall face 120 c of the load transmission part 120 on the connection wall 43 of the cover 4, so that the main-clip 60 is inserted into the lock hole 200 a of the roof side rail 17. Therefore, the main-clip 60 is located on the upper position of the cover 4 where the air bag 3 is housed. Specifically, in the air bag system 2, as is different from the conventional air bag system A in FIG. 8, the folded air bag 3 does not hinder an operator from checking by sight the main clip 60 position relative to the lock hole 200 a of the roof side rail 17. Thus, according to the present embodiment, the air bag system 2 facilitates the installation of the cover 4 to the roof side rail 17 since it is easier to check the main clip 60 position relative to the lock 200 a of the roof side rail 17 by sight, compared to the conventional air bag system A.
In addition, in the air bag system 2 of the present embodiment, as shown in FIG. 3D, an operator pushes the load transmission part 120 (the inner-side wall face 120 b) from the vehicle interior side toward the vehicle exterior side (roof side rail 17 side) when the operator inserts the main-clip 60 into the lock hole 200 a of the roof side rail 17. The pushed load F in this way can be efficiently transmitted to the main-clip 60 via the rib 120 a of the load transmission part 120 and the outer-side wall face 120 c. Therefore, in the air bag system 2 according to the present embodiment, different from the conventional air bag system A in FIG. 8 that pushes and transmits a load via the cover 310 where the folded air bag 330 is housed, the cover 4 is not deformed in flat, and thus reduces a pushing stroke loss and or pushed load F loss. Accordingly, the air bag system 2 according to the present embodiment significantly facilitates the installation to the roof side rail 17, compared to the conventional air bag system A.
In the air bag system 2 according to the present embodiment, when inserting the main-clip 60 through the lock hole 200 a of the roof side rail 17, an operator pushes force onto the load transmission part 120, as mentioned above, as is different from the conventional air bag system A in FIG. 8 that applies load via the cover 4 hosing the folded air bag 330. Accordingly, this significantly reduces the deformation of the air bag 3 folded in the cover 4.
The air bag system 2 according to the present embodiment is provided with the sub-clip 47 (see FIGS. 6A, 6B and 7) provided lower than the connection wall 43 of the cover 4. Since the vehicle width gradually extends toward the vehicle exterior side as it goes lower than the connection wall 43, the sub-clip 47 provided lower than the connection wall 43 is located apart from the cover 4 toward the vehicle exterior side. Therefore, at the time of installing the cover 4 to the roof side rail 17, when a load is applied onto the opposed wall 42 of the cover 4 on the vehicle interior side, it may be difficult to efficiently transmit the pushed load F onto the sub-clip 47. However, the air bag system 2 of the present embodiment has the finger-inserts 130 a and 140 b (see FIGS. 6A and 6B) on the vehicle interior side of the sub-clip 47, and the pushed load F can be applied on the vehicle interior side of the sub-clip 47 via the finger-inserts 130 b and 140 b, thereby to efficiently transmit the pushed load F onto the sub-clip 47. Accordingly, this facilitates the insertion of the sub-clip 47 into the lock hole 17 a of the roof side rail 17.
As mentioned above, the air bag system 2 according to the present embodiment, the installation of the cover 4 to the roof side rail 17 is carried on at the following positions: P1 of the bracket 8 a, P4 of the bracket 8 b, P7 of the bracket 8 c with the fixture members 7 (see FIGS. 1 and 2); P2 between P1 and P4, and P5 between P4 and P7 with the main-clips 60 of the load transmission part 120 (see FIG. 3), respectively, and P3 and P6 with the sub-clips 47 (see FIGS. 6A and 6B). Accordingly, the air bag system 2 according to the present embodiment enhances the installation strength of the cover 4 to the roof side rail 17. In addition, the air bag system 2 significantly facilitates the installation of the cover 4 to the vehicle body 11, by tentatively fixing the cover 4 to the roof side rail 17, and then fixing the cover 4 to the vehicle body 11 via the brackets 8 a, 8 b, 8 c with the fixture members 7.
The air bag system for a vehicle 2 may be applicable to a motor vehicle of any kind, which has a structure that can install the cover 4 at the upper portion 11 c of the door opening portions 11 a and 11 b. In the present embodiment, the load transmission part 120 chiefly includes the ribs 120 a, 120 a, 120 a, the inner-side wall face 120 b, and the outer-side wall face 120 c provided on the connection wall 43 of the cover 4. However, the present invention is not limited to this, and the structure of the load transmission part 120 may also be of a solid block, for example.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5921575Oct 16, 1997Jul 13, 1999Becker Group Europe GmbhAirbag deviceUS6079732Nov 6, 1997Jun 27, 2000Toyota Jidosha Kabushiki KaishaStructure for arrangement of occupant protective apparatus for vehicleUS6149185 *Jun 7, 1999Nov 21, 2000Trw Vehicle Safety Systems Inc.Support device for a vehicle occupant safety apparatusUS6340171 *Sep 18, 1998Jan 22, 2002Daimlerchrysler AgAir bag module in a motor vehicleUS6520533 *Dec 27, 2000Feb 18, 2003Toyoda Gosei Co., Ltd.Head protecting air bag apparatusUS6761374 *May 3, 2002Jul 13, 2004Industrialesud S.P.A.Roof panel lining of a vehicle with preassembled head protection elements (head bags)US7631889 *Mar 6, 2006Dec 15, 2009Takata CorporationAirbag installation structureUS7712775 *Jun 9, 2008May 11, 2010Honda Motor Co., Ltd.Arranging structure of vehicle interior componentsUS7722113 *May 29, 2008May 25, 2010Inoac CorporationInterior parts for a vehicleUS20030001365Jun 11, 2002Jan 2, 2003Honda Giken Kogyo Kabushiki KaishaOccupant restraint systemUS20040000776 *Mar 28, 2003Jan 1, 2004Mitsubishi Jidosha Kogyo Kabushiki KaishaOccupant protective arrangement and a vehicle therewithUS20050225060 *Apr 12, 2004Oct 13, 2005Dana WoldInflatable curtain trajectory bracketUS20060082108 *Aug 31, 2005Apr 20, 2006Mazda Motor CorporationCurtain airbag arrangement structureUS20060267315 *May 26, 2005Nov 30, 2006Trw Vehicle Safety Systems Inc.Bracket assembly for an inflatable curtainUS20070210561 *Mar 7, 2007Sep 13, 2007Tsuyoshi YamagiwaRear structure of vehicle provided with curtain air bag apparatusUS20070296185 *May 29, 2007Dec 27, 2007Honda Motor Co.,Ltd.Curtain-type airbag apparatus and airbag moduleUS20090091102 *Oct 2, 2008Apr 9, 2009Honda Motor Co., Ltd.Vehicle bracketJP2003002129A Title not availableJP2003291768A * Title not availableJP2004075043A Title not availableJP2004182144A Title not availableJP2006088846A Title not availableJP2006096076A Title not availableJP2006327340A Title not availableJP2007091199A Title not availableJP2007131172A * Title not availableJPH10181512A * Title not available* Cited by examinerNon-Patent CitationsReference1 *Masahide Miyazaki, Protecting Device for Vehicle Occupant, Oct. 15, 2003, JPO, JP 2003-291768, English Abstract.2 *Masahide Miyazaki, Protecting Device for Vehicle Occupant, Oct. 15, 2003, JPO, JP 2003-291768, Machine Translation of Description.3 *Nakajima et al., Arrangement Structure of Air Bag Device for Automobile, Jul. 7, 1998, JPO, JP 10-181512 A, English Abstract.4 *Nakajima et al., Arrangement Structure of Air Bag Device for Automobile, Jul. 7, 1998, JPO, JP 10-181512 A, Machine Translation of Description.5 *Yoshida et al., Curtain Air Bag Device, May 31, 2007, JPO, JP 2007-131172 A, English Abstract.6 *Yoshida et al., Curtain Air Bag Device, May 31, 2007, JPO, JP 2007-131172 A, Machine Translation of Description.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8651516 *Sep 24, 2010Feb 18, 2014Autoliv Development AbCurtain airbag deviceUS8833797 *May 2, 2011Sep 16, 2014Toyota Jidosha Kabushiki KaishaAutomobile ceiling material provisional placement structure and automobile ceiling material installation methodUS9022415 *Dec 19, 2011May 5, 2015Autoliv Development AbCover for airbag device, and airbag deviceUS20120267879 *Sep 24, 2010Oct 25, 2012Minfun KimCurtain airbag deviceUS20130300091 *Dec 19, 2011Nov 14, 2013Autoliv Development AbCover for airbag device, and airbag deviceUS20140042734 *May 2, 2011Feb 13, 2014Toyota Jidosha Kabushiki KaishaAutomobile ceiling material provisional placement structure and automobile ceiling material installation method* Cited by examinerClassifications U.S. Classification280/728.2, 280/730.2International ClassificationB60R21/213, B60R21/20Cooperative ClassificationB60R21/232, B60R21/213, B60R21/201European ClassificationB60R21/213Legal EventsDateCodeEventDescriptionOct 1, 2008ASAssignmentOwner name: HONDA MOTOR CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKIMOTO, KOHEI;TAKEMURA, NAOKI;REEL/FRAME:021615/0988Effective date: 20080915Aug 28, 2015REMIMaintenance fee reminder mailedRotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services