JP2548134Y2 - Energy absorbing device for steering wheel - Google Patents
Energy absorbing device for steering wheelInfo
- Publication number
- JP2548134Y2 JP2548134Y2 JP1991105731U JP10573191U JP2548134Y2 JP 2548134 Y2 JP2548134 Y2 JP 2548134Y2 JP 1991105731 U JP1991105731 U JP 1991105731U JP 10573191 U JP10573191 U JP 10573191U JP 2548134 Y2 JP2548134 Y2 JP 2548134Y2
- Authority
- JP
- Japan
- Prior art keywords
- energy absorbing
- absorbing device
- plate
- steering wheel
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Steering Controls (AREA)
- Vibration Prevention Devices (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、ステアリングシャフト
上方先端部のボス部に取付けられ、衝撃エネルギーを吸
収して乗員への衝撃を緩和するステアリングホイールの
エネルギー吸収装置の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an energy absorbing device for a steering wheel which is attached to a boss at an upper end of a steering shaft and absorbs impact energy to reduce an impact on an occupant.
【0002】[0002]
【従来の技術】ステアリングホイールはステアリングシ
ャフトの上方先端部に取付けられるが、取付部は、取付
ボルトを含むボス部が上方に突出した構造になってい
る。しかし、衝突の際などには、このボス部に乗員の体
が当たりやすく、この部分が当たった際には、乗員の体
に対して衝撃が加わるという問題がある。2. Description of the Related Art A steering wheel is mounted on an upper end portion of a steering shaft. The mounting portion has a structure in which a boss portion including a mounting bolt projects upward. However, there is a problem that an occupant's body is likely to hit the boss portion in a collision or the like, and an impact is applied to the occupant's body when this portion is hit.
【0003】このため従来から乗員の安全を守るために
このボス部を覆うようにそのまわりにエネルギー吸収部
材を配置し、衝突の際などに乗員の体が直接ボス部に当
たらないようにするとともに、衝突エネルギーを吸収し
て衝突ショックを緩和するようにすることが知られてい
る。For this reason, conventionally, in order to protect the occupant's safety, an energy absorbing member is arranged around the boss portion so as to cover the boss portion so that the occupant's body does not directly hit the boss portion in the event of a collision or the like. It is known to absorb collision energy to reduce collision shock.
【0004】これら公知のものは、上下方向すなわち、
ステアリングシャフトの軸方向、この軸方向とは直交す
る方向に設けたエネルギー吸収部材の縦横方向の3方向
の力に対しては、それぞれ適度な剛性を有しており、エ
ネルギー吸収機能を発揮することができる。しかし側板
に穿設する縦穴の数、大きさ等を変えることによって、
衝撃エネルギーを吸収する工夫がなされているが、いま
ひとつ前方向の衝撃力を十分に緩和できないという問題
があった。[0004] These known ones are in the vertical direction,
The energy absorbing member provided in the axial direction of the steering shaft and in the vertical and horizontal directions of the energy absorbing member provided in a direction perpendicular to the axial direction has appropriate rigidity and exhibits an energy absorbing function. Can be. However, by changing the number and size of vertical holes drilled in the side plate,
It devised to absorb the impact energy have been made, but there is a problem that can not be sufficiently mitigated the forward impact force enough.
【0005】この問題を解決するためにエネルギー吸収
部材の板厚を厚くしたり、頂板と4つの側板とを有する
ような箱型構造にするとか、中空内部両側にV字状の補
強部材を設ける(実開昭61−47749号)などなさ
れているが、十分な解決策となっていないのが現状であ
る。In order to solve this problem, the thickness of the energy absorbing member is increased, a box-shaped structure having a top plate and four side plates is provided, or a V-shaped reinforcing member is provided on both sides of the hollow. (Japanese Utility Model Application Laid-Open No. 61-47949), but at present it is not a sufficient solution.
【0006】[0006]
【考案が解決しようとする課題】本考案は、叙上の問題
に鑑み、特に前方向に加わる衝撃力に対して十分な剛性
を有し十分に緩衝機能を発揮することができるステアリ
ングホイールのエネルギー吸収装置を提供することを目
的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in particular , the present invention relates to a steering wheel having sufficient rigidity against impact force applied in the forward direction and capable of sufficiently exhibiting a shock absorbing function. It is intended to provide an absorption device.
【0007】[0007]
【課題を解決するための手段】ステアリングシャフトの
先端部に取付けられるエネルギー吸収装置4であって、
1つの底板9と、該底板9の前後の縁部から相対向して
略直角方向上方に延び、かつ縦方向の複数個の長穴7
b,8bを有する前方と後方の2つの側板7,8を有す
る頂板6と、頂板6と底板9の中央部に跨って固設され
た略U字形の補強部材10とからなり、該U字形の補強
部材10は前方側板7と間隔を置いて固着し、これによ
り前方向の十分なエネルギー吸収性能を発揮できるよう
にした。An energy absorbing device (4) attached to a tip portion of a steering shaft, comprising:
One bottom plate 9 and a plurality of longitudinal slots 7 extending substantially perpendicularly upward from opposite front and rear edges of the bottom plate 9 and facing each other.
b, or top panel 6 having two side plates 7, 8 of the front way and rear side with 8b, consists fixedly provided has been substantially U-shaped reinforcing member 10 Metropolitan across the central portion of the top plate 6 and the bottom plate 9, the reinforcing members 10 of the U-shaped fixed at a front side plate 7 and spacing, thereby to allow exhibit sufficient energy absorbing performance of the forward.
【0008】[0008]
【実施例】以下、図面を参照しつつ、本考案の1実施例
につき詳細に説明する。図2で1はボスプレートでステ
アリングホイールのスポーク2に溶接されている。3は
ホーンパッドで、本考案に係るエネルギー吸収装置4を
介しボスプレート1上に取付けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In FIG. 2, reference numeral 1 denotes a boss plate which is welded to the spoke 2 of the steering wheel. A horn pad 3 is mounted on the boss plate 1 via the energy absorbing device 4 according to the present invention.
【0009】エネルギー吸収装置4は図1に示すよう
に、中央部にステアリングシャフトの頂部にボスプレー
トを取付作業をするための角形の開口5を有する略長方
形の頂板6があり、この頂板6は前後縁から滑らかに屈
曲して下方に延びる前方側板7と後方側板8が一体に成
形されている(ドライバー側を後方とする)。両側板7
と8は下端で内側にわん曲したフランジ7aと8aを有
している。頂板6の左右両側には下向きの折曲片6aが
一体に設けられている。As shown in FIG. 1, the energy absorbing device 4 has a substantially rectangular top plate 6 having a square opening 5 for attaching a boss plate to the top of the steering shaft at the center. rear side plate 8 and the front side plate 7 extending downwardly smoothly bent from the front and rear edges are formed integrally (the driver-side and rear). Side plate 7
And 8 have inwardly curved flanges 7a and 8a at the lower ends. Downwardly bent pieces 6a are integrally provided on both left and right sides of the top plate 6.
【0010】前記前方及び後方側板7と8にはそれぞれ
上下方向に平行に穿設した複数の長穴7bと8bとがあ
り、かつ前方及び後方側板は中央部7c,8cで内側に
向ってなめらかにわん曲している。[0010] There are a plurality of elongated holes 7b and 8b bored in parallel with the upper and lower directions on the front side and the rear side plate 7 and 8, and before side and the rear side plate central portion 7c, inwardly 8c It smoothly curves toward.
【0011】前記側板下部のフランジ7aと8aの下面
には略長方形をした底板9が複数個所でスポット溶接9
aにて固定されている。底板9の左右両側には上に凸の
側方張出部9bが一体に設けられている。又底板9の中
央部には左右両縁が側方張出部9bの立上り基部に達す
る横長の穴9cを有している。A substantially rectangular bottom plate 9 is spot-welded at a plurality of locations on the lower surfaces of the flanges 7a and 8a at the lower portion of the side plate.
It is fixed at a. On the left and right sides of the bottom plate 9, upwardly projecting side projections 9 b are integrally provided. In the center of the bottom plate 9, there is a horizontally elongated hole 9c whose left and right edges reach the rising base of the lateral overhang 9b.
【0012】10は前方側板7の前部中央に中央部を前
方側板7と隔てて取付けられた補強部材で、略U字形を
なし、その両端は頂板6と底板9に点溶接10aにて固
定されている。[0012] 10 is a reinforcing member mounted apart from the previous <br/> side plate 7 the central portion to the front center of the front side plate 7, a substantially U-shape, both ends thereof to the top plate 6 and the bottom plate 9 It is fixed by spot welding 10a.
【0013】以上のような構成のエネルギー吸収装置4
にステアリングシャフトの軸方向の衝撃力が加わると、
前方及び後方側板7と8が上下方向に変形してエネルギ
ーを吸収する。前方側板と直交する前後方向の力が加わ
ると、主として側板7,8が変形する。この場合側板に
縦長の長穴7b又は8bが明いているので、これによっ
て剛性が適当な大きさに調整される。The energy absorbing device 4 having the above configuration
When the impact force in the axial direction of the steering shaft is applied to
Before side and the rear side plate 7 and 8 to absorb energy by deformation in the vertical direction. When the front-rear direction of the force perpendicular to the front side plate is applied, primarily side plates 7, 8 are deformed. In this case, since the vertically long holes 7b or 8b are clear in the side plate, the rigidity is adjusted to an appropriate size by this.
【0014】前記上下方向、前後方向の衝撃力に対して
は側板7と8の変形でそのエネルギーを吸収するが、側
板の中央部に設けた補強部材10によって、さらに補強
される。[0014] The vertical direction, but for the impact force before backward direction to absorb the energy in the deformation of the side plates 7 and 8, the reinforcing member 10 provided at the center portion of the side plate is further reinforced.
【0015】[0015]
【効果】本考案によれば、エネルギー吸収装置4に対
し、衝撃力が前方向に加わったとしても、十分にエネル
ギーを吸収できる。特に前後方向の衝撃力が作用しても
それに十分対応できるが、さらに補強部材10の存在に
より補強される。図3は従来品と本願との性能比較線図
で、従来品は荷重に略比例して変位するが、本考案にお
いては荷重約300kgまではエネルギー吸収性能が左
程落ちることなく、十分な吸収性能を維持することがわ
かる。According to the embodiments of the present invention, with respect to the energy absorbing device 4, even if the impact force is applied in the forward direction can sufficiently absorb energy. Also act impact force of the front and rear direction, especially but it can sufficiently correspond, are further reinforced by the presence of the reinforcing member 10. FIG. 3 is a performance comparison diagram of the conventional product and the present invention. The conventional product is displaced substantially in proportion to the load, but in the present invention, the energy absorption performance does not drop to the left until the load is approximately 300 kg, and the absorption is sufficient. It can be seen that the performance is maintained.
【図1】本考案のエネルギ−吸収装置の斜視図。FIG. 1 is a perspective view of the energy absorbing device of the present invention.
【図2】ステアリングシャフト上部の構成を示す断面
図。FIG. 2 is a sectional view showing a configuration of an upper portion of a steering shaft.
【図3】エネルギ−吸収装置と従来品との性能比較図。FIG. 3 is a performance comparison diagram between an energy absorption device and a conventional product.
1 ボスプレ−ト 2 スポ−ク 3 ホ−ンパッド 4 エネルギ−吸収
装置 5 開口 6 頂板 6a 折曲片 7,8 側板 7a,8a フランジ 7b,8b 長穴 9 底板 9a スポット溶接 9b 側方張出部 9c 穴 10 補強部材DESCRIPTION OF SYMBOLS 1 Boss plate 2 Spoke 3 Horn pad 4 Energy absorption device 5 Opening 6 Top plate 6a Bending piece 7, 8 Side plate 7a, 8a Flange 7b, 8b Elongated hole 9 Bottom plate 9a Spot welding 9b Side overhang 9c Hole 10 Reinforcement member
Claims (1)
られるエネルギー吸収装置(4)であって、1つの底板
(9)と、該底板(9)の前後の縁部から相対向して略
直角方向上方に延び、かつ縦方向の複数個の長穴(7
b,8b)を有する後方と前方の2つの側板(7,8)
を有する頂板(6)と、頂板(6)と底板(9)の中央
部に跨って固設された略U字形の補強部材(10)とか
らなり、該U字形の補強部材(10)は前方側板(7)
と間隔を置いて固着されていることを特徴とするステア
リングホイールのエネルギー吸収装置。An energy absorbing device (4) attached to a tip portion of a steering shaft, comprising: a bottom plate (9); And a plurality of longitudinal holes (7
b, 8b) with two rear and front side plates (7, 8)
And a substantially U-shaped reinforcing member (10) fixedly provided across the center of the top plate (6) and the bottom plate (9), and the U-shaped reinforcing member (10) is before hand side plate (7)
An energy absorbing device for a steering wheel, wherein the energy absorbing device is fixed at intervals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991105731U JP2548134Y2 (en) | 1991-11-29 | 1991-11-29 | Energy absorbing device for steering wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991105731U JP2548134Y2 (en) | 1991-11-29 | 1991-11-29 | Energy absorbing device for steering wheel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0546648U JPH0546648U (en) | 1993-06-22 |
JP2548134Y2 true JP2548134Y2 (en) | 1997-09-17 |
Family
ID=14415438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991105731U Expired - Fee Related JP2548134Y2 (en) | 1991-11-29 | 1991-11-29 | Energy absorbing device for steering wheel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2548134Y2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61319A (en) * | 1984-06-12 | 1986-01-06 | 豊田メデイカル株式会社 | Cleaning machine |
JPH0733047Y2 (en) * | 1988-09-17 | 1995-07-31 | 日本製箔株式会社 | System kitchen hood |
-
1991
- 1991-11-29 JP JP1991105731U patent/JP2548134Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0546648U (en) | 1993-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |