JPS6332542Y2 - - Google Patents
Info
- Publication number
- JPS6332542Y2 JPS6332542Y2 JP1983029378U JP2937883U JPS6332542Y2 JP S6332542 Y2 JPS6332542 Y2 JP S6332542Y2 JP 1983029378 U JP1983029378 U JP 1983029378U JP 2937883 U JP2937883 U JP 2937883U JP S6332542 Y2 JPS6332542 Y2 JP S6332542Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- upper shaft
- lock
- lock collar
- collar
- 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
Links
- 238000003466 welding Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Steering Controls (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Mechanical Control Devices (AREA)
Description
【考案の詳細な説明】
本考案は、自動車の操舵装置に用いられる自動
車用ハンドル軸に関するものである。[Detailed Description of the Invention] The present invention relates to an automobile steering wheel shaft used in an automobile steering system.
第１図、第２図、第３図は従来の自動車用ハン
ドル軸を示すもので、ハンドル軸１は上部軸２と
下部軸３とから成り、上部軸２の上端にはハンド
ル４がネジ等により固定され、下部軸３の下端に
はステアリングギヤ（図示省略）が接手を介して
連結されている。そして、上部軸２と下部軸３と
は、回転方向に対して結合強度を得るために、第
２図に示す如く平行な２平面を有する小判形に形
成された部分で嵌合しており、両者は合成樹脂を
インジエクシヨン成形したシヤーピン５によつて
結合され常時は一体に結合されているが衝突時に
はシヤーピン５が剪断して、上部軸２が下部軸３
内に没入するようになされている。又、上部軸２
にはロツクカラー６が結合固定されており、ロツ
クカラー６はハンドルコラム１０に設けられたキ
ーロツク装置８の進退可能なロツクピン９と係合
するロツク溝７を有している。このような構造で
あるために、上部軸２は円筒素材の一部を押込成
形して、小判形の嵌合部分を部分的に形成してい
るが、押込成形時に小判形の嵌合部分に曲がりが
発生し易く衝突時に上部軸２が下部軸３にスムー
ズに没入出来ないという不都合を生じる恐れがあ
る。又、円筒素材一本一本の一部に押込成形を行
うことは製造コストを高める要因にもなつてい
る。そして、上部軸２の円筒部分に、ロツクカラ
ー６を結合固定するために、ロツクカラー６を上
部軸２に嵌挿し、その全周に溶接を施して結合強
度を得ているが、溶接量が多いために、溶接時に
スパツタがロツク溝７内に飛んで付着し、このた
めロツク時にロツクピン９が係合しない、あるい
はロツク解除時にロツク溝７からロツクピン９が
抜けないという不具合を生じることがあつた。 Figures 1, 2, and 3 show conventional steering wheel shafts for automobiles.The steering wheel shaft 1 consists of an upper shaft 2 and a lower shaft 3, and a handle 4 is attached to the upper end of the upper shaft 2 with a screw or the like. A steering gear (not shown) is connected to the lower end of the lower shaft 3 via a joint. The upper shaft 2 and the lower shaft 3 are fitted together at an oval-shaped portion having two parallel planes as shown in FIG. 2 in order to obtain coupling strength in the direction of rotation. Both are connected by a shear pin 5 made of injection molded synthetic resin, and are normally connected as one body, but in the event of a collision, the shear pin 5 shears and the upper shaft 2 is connected to the lower shaft 3.
It is designed to immerse you inside. Also, upper shaft 2
A lock collar 6 is fixedly connected to the handle column 10, and the lock collar 6 has a lock groove 7 that engages with a lock pin 9 of a key lock device 8 provided on a handle column 10, which can move forward and backward. Due to this structure, the upper shaft 2 is made by press-molding a part of a cylindrical material to partially form an oval-shaped fitting part. Since bending is likely to occur, there is a risk that the upper shaft 2 may not be able to smoothly retract into the lower shaft 3 in the event of a collision. Furthermore, performing push molding on a portion of each cylindrical material is also a factor in increasing manufacturing costs. In order to couple and fix the lock collar 6 to the cylindrical part of the upper shaft 2, the lock collar 6 is inserted into the upper shaft 2, and the entire circumference is welded to obtain joint strength, but since the amount of welding is large, Furthermore, spatter flies and adheres to the inside of the lock groove 7 during welding, resulting in problems such as the lock pin 9 not engaging when locking, or the lock pin 9 not coming out from lock groove 7 when unlocking.
本考案はこれらの点に鑑みなされたもので、ハ
ンドル軸の上部軸の曲がりが発生することなく、
しかも安価に製造出来、ロツクカラーのロツク溝
内に溶接のスパツタが飛んで付着することのない
自動車用ハンドル軸を提供することを目的とする
もので、以下添付図面に基づいて本考案を説明す
る。 The present invention was developed in view of these points, and the upper shaft of the handle shaft does not bend.
Moreover, it is an object of the present invention to provide a steering wheel shaft for an automobile that can be manufactured at low cost and prevents welding spatters from flying and adhering to the lock groove of a lock collar.The present invention will be explained below based on the attached drawings.
第４図、第５図は本考案第一の実施例の自動車
用ハンドル軸を示すもので、上部軸１２と下部軸
１３との嵌合する部分については第１図、第２図
に示した従来例と同一であるが、上部軸１２は平
行な平面を有する小判形の断面形状で全長に亙つ
て形成されている。そして、この上部軸１２に嵌
合するロツクカラー１６は、その内周形状が上部
軸１２の外周形状と一致する平行な弦状の２平面
を有する内周形状に形成され、内周が平面となる
２箇所の厚肉部にロツク溝１７が形成されてい
る。このロツクカラー１６を上部軸１２に嵌合固
着してある。符号３２は、上部軸１２の上端にハ
ンドルを結合するネジ部である。 4 and 5 show a steering wheel shaft for an automobile according to the first embodiment of the present invention, and the fitting portion between the upper shaft 12 and the lower shaft 13 is shown in FIGS. 1 and 2. Although it is the same as the conventional example, the upper shaft 12 has an oval cross-sectional shape with parallel planes over its entire length. The lock collar 16 that fits on the upper shaft 12 is formed into an inner periphery having two parallel chord-shaped planes that match the outer periphery of the upper shaft 12, and the inner periphery is a flat surface. Lock grooves 17 are formed in two thick parts. This lock collar 16 is fitted and fixed to the upper shaft 12. Reference numeral 32 is a threaded portion that connects the handle to the upper end of the upper shaft 12.
上記の如くであるから、上部軸１２を作成する
際に、小判形断面形状の棒状材を連続的に形成
し、これを切断して上部軸１２とすればよいの
で、製品として非常に安価でありながらも、曲が
りが発生することがなく、衝突時に上部軸１２が
下部軸１３にスムーズに没入することが出来る。
そして、ロツクカラー１６の内周形状が、上部軸
１２の外周形状と一致する小判形で形成され、上
部軸１２に嵌合固着されているので、回転方向の
結合強度は係合した２平面によつて確保され、上
部軸１２とロツクカラー１６との結合は、単に圧
入嵌合のみ、あるいは必要に応じてロツクカラー
１６のロツク溝１７から離れた位置での溶接を施
すだけでよく、この結果ロツク溝１７内に溶接ス
パツタが飛んで付着することを防止することが出
来る。そして、本考案実施例の如く、ロツクカラ
ー１６の肉厚部にロツク溝１７を設ければ、ロツ
クカラー１６の外径を小さくしても、ロツク溝１
７の深さを確保することができ、ロツクカラー１
６としての機能は十分に得ることが出来る。 As described above, when creating the upper shaft 12, it is sufficient to continuously form a rod-shaped material with an oval cross-section and cut it to form the upper shaft 12, which is a very inexpensive product. Despite this, bending does not occur, and the upper shaft 12 can smoothly retract into the lower shaft 13 in the event of a collision.
The inner circumferential shape of the lock collar 16 is formed into an oval shape that matches the outer circumferential shape of the upper shaft 12, and since it is fitted and fixed to the upper shaft 12, the coupling strength in the rotational direction is determined by the two engaged planes. The connection between the upper shaft 12 and the lock collar 16 can be achieved by simply press-fitting or, if necessary, by welding the lock collar 16 at a position away from the lock groove 17. It is possible to prevent welding spatter from flying and adhering to the interior. If the lock groove 17 is provided in the thick part of the lock collar 16 as in the embodiment of the present invention, even if the outer diameter of the lock collar 16 is made small, the lock groove 17
7 depth can be secured, lock collar 1
The function as 6 can be fully obtained.
第６図は本考案第２の実施例を示すもので、上
部軸２２が略々四角形で形成してあり、ロツクカ
ラー２６の内孔を上部軸２２の外周形状に形成
し、結合してある。そして、ロツクカラー２６の
内周が弦状の平面を有する４箇所の厚肉部に１対
のロツク溝２７が形成してある。この実施例の場
合は、ロツク溝２７のない上部軸２２の平面に溶
接を行うことで、作業性の向上が出来、溶接時に
スパツタが飛んでロツク溝２７内に付着すること
がない。 FIG. 6 shows a second embodiment of the present invention, in which the upper shaft 22 is formed into a substantially rectangular shape, and the inner hole of the lock collar 26 is formed in the shape of the outer periphery of the upper shaft 22 and is connected to the upper shaft 22. A pair of lock grooves 27 are formed in four thick-walled parts of the lock collar 26 whose inner periphery has a chord-like plane. In the case of this embodiment, welding is performed on the flat surface of the upper shaft 22 where there is no lock groove 27, thereby improving workability and preventing spatter from flying off and adhering to the inside of the lock groove 27 during welding.
本考案は前述の如くであるから、自動車用ハン
ドル軸において、上部軸を少なくとも平行な２平
面を有する断面形状で全長に亙つて形成すること
で、上部軸は連続した断面形状の棒状材を切断し
て、ハンドル取付部を加工すればよく、従来の様
に下部軸と嵌合するために一部に塑性加工を施す
ことがなく、製造原価が非常に安価であり、しか
も塑性加工による曲がりが発生することがなく、
衝突時に上部軸が下部軸にスムーズに没入するこ
とが出来る。そして、上部軸とロツクカラーとが
少なくとも平行な２平面で嵌合することで、ロツ
クカラーに作用する回転方向への荷重に対する強
度を確保することが出来、上部軸とロツクカラー
とは単なる圧入嵌合、あるいは溶接を施すにして
もロツク溝から離れた位置での部分的な溶接でよ
く、この結果溶接スパツタがロツク溝内に付着す
ることを確実に防止することが出来る。そして、
ロツクカラーの内周が平面となる厚肉部にロツク
溝を形成することで、ロツクカラーの外径を大き
くすることなく、十分にロツク溝の深さを確保す
ることが出来、ハンドル軸を大径化することがな
くロツクカラーとロツクピンとの結合強度を得る
ことが出来る等の効果を有する。 Since the present invention is as described above, in an automobile handle shaft, the upper shaft is formed over the entire length with a cross-sectional shape having at least two parallel planes, so that the upper shaft is cut from a bar-shaped member with a continuous cross-sectional shape. The handle attachment part can then be machined, and there is no need to plastically process a part of the handle to fit it with the lower shaft, which is the case in the past.The manufacturing cost is very low, and there is no bending caused by plastically working. never occurs,
The upper shaft can be smoothly inserted into the lower shaft in the event of a collision. By fitting the upper shaft and the lock collar on at least two parallel planes, it is possible to ensure strength against the load in the rotational direction that acts on the lock collar. Even if welding is performed, it is sufficient to perform partial welding at a position away from the lock groove, and as a result, it is possible to reliably prevent weld spatter from adhering to the inside of the lock groove. and,
By forming the lock groove in the thick part where the inner circumference of the lock collar is flat, it is possible to secure a sufficient depth of the lock groove without increasing the outer diameter of the lock collar, allowing the handle shaft to have a larger diameter. This has the effect that the bonding strength between the lock collar and the lock pin can be obtained without causing any damage.
第１図は自動車用ハンドル軸の従来例を示す縦
断面図、第２図は第１図Ａ−Ａ線に沿つた断面
図、第３図は第１図Ｂ−Ｂ線に沿つた断面図、第
４図は本考案第１の実施例を示す縦断面図、第５
図は第４図Ｃ−Ｃ線に沿つた断面図、第６図は本
考案第２の実施例を示す断面図である。
符号の説明、１……ハンドル軸、２，１２，２
２……上部軸、３，１３……下部軸、４……ハン
ドル、５……シヤーピン、６，１６，２６……ロ
ツクカラー、７，１７，２７……ロツク溝、８…
…キーロツク装置、９……ロツクピン、１０……
ハンドルコラム。
Fig. 1 is a longitudinal sectional view showing a conventional example of a steering wheel shaft for an automobile, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a sectional view taken along line B-B in Fig. 1. , FIG. 4 is a vertical sectional view showing the first embodiment of the present invention, and FIG.
The figure is a sectional view taken along the line CC in FIG. 4, and FIG. 6 is a sectional view showing a second embodiment of the present invention. Explanation of symbols, 1...Handle shaft, 2, 12, 2
2... Upper shaft, 3, 13... Lower shaft, 4... Handle, 5... Shear pin, 6, 16, 26... Lock collar, 7, 17, 27... Lock groove, 8...
...Key lock device, 9...Lock pin, 10...
handle column.
Claims (1)
上部軸と下部軸とが、少なくとも平行な２平面を
有する部分で嵌合し、前記上部軸には、キーロツ
ク装置の進退自在なロツクピンと係合するロツク
溝を有するロツクカラーが結合固定されている自
動車用ハンドル軸において、前記上部軸を、少な
くとも平行な２平面を有する断面形状で全長に亙
つて形成し、該上部軸に、上部軸の外周形状と一
致する少なくとも平行な弦状の２平面を有する内
周形状を成し、内周が平面となる複数の厚肉部の
少なくとも１ケ所にロツク溝を形成したロツクカ
ラーを嵌合固着したことを特徴とする自動車用ハ
ンドル軸。 The handle shaft is composed of an upper shaft and a lower shaft, the upper shaft and the lower shaft are fitted at a portion having at least two parallel planes, and the upper shaft is engaged with a lock pin of a key lock device that can freely move forward and backward. In the steering wheel shaft for an automobile to which a lock collar having a locking groove is coupled and fixed, the upper shaft is formed over its entire length in a cross-sectional shape having at least two parallel planes, and the upper shaft has an outer circumferential shape. The lock collar has an inner periphery shape having at least two parallel chord-shaped planes coinciding with the above, and a lock collar having a lock groove formed in at least one of the plurality of thick-walled parts whose inner peripheries are flat is fitted and fixed thereto. A steering wheel shaft for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2937883U JPS59135266U (en) | 1983-02-28 | 1983-02-28 | Automobile steering wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2937883U JPS59135266U (en) | 1983-02-28 | 1983-02-28 | Automobile steering wheel shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59135266U JPS59135266U (en) | 1984-09-10 |
| JPS6332542Y2 true JPS6332542Y2 (en) | 1988-08-30 |
Family
ID=30160235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2937883U Granted JPS59135266U (en) | 1983-02-28 | 1983-02-28 | Automobile steering wheel shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59135266U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544271B1 (en) * | 1983-04-15 | 1988-09-09 | Peugeot Cycles | STEERING WHEEL AXLE FOR A STEERING COLUMN OF A MOTOR VEHICLE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929147Y2 (en) * | 1979-02-24 | 1984-08-22 | トヨタ自動車株式会社 | elastic shaft joint |
-
1983
- 1983-02-28 JP JP2937883U patent/JPS59135266U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59135266U (en) | 1984-09-10 |
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