JPH11344044A - Spline coupling structure - Google Patents
Spline coupling structureInfo
- Publication number
- JPH11344044A JPH11344044A JP16781498A JP16781498A JPH11344044A JP H11344044 A JPH11344044 A JP H11344044A JP 16781498 A JP16781498 A JP 16781498A JP 16781498 A JP16781498 A JP 16781498A JP H11344044 A JPH11344044 A JP H11344044A
- Authority
- JP
- Japan
- Prior art keywords
- pipe member
- spline
- tightening
- tightening member
- recesses
- 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.)
- Withdrawn
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軸部材とパイプ部
材とのスプライン結合構造に関する。The present invention relates to a spline connection structure between a shaft member and a pipe member.
【０００２】[0002]
【従来の技術】軸部材とパイプ部材とのスプライン結合
において、両者のガタを低減する構造が、例えば、実公
昭６３−１７８６２号公報で提案されている。2. Description of the Related Art In spline connection between a shaft member and a pipe member, a structure for reducing backlash of both members has been proposed, for example, in Japanese Utility Model Publication No. 63-17762.
【０００３】このものを図９に示す。軸部材１は、その
基端側が第１の自在継手４に連結されており、先端側の
外周には外スプライン１ａが形成されている。一方、パ
イプ部材２は、その基端側が第２の自在継手５に連結さ
れていて、先端側の内周には内スプライン２ａが形成さ
れている。また、パイプ部材２の先端部には、軸方向に
沿って４本のスリット２ｂが形成されており、さらに先
端縁近傍の外周には緊締部材３の抜け止めとしての環状
溝２ｃが形成されている。この環状溝２ｃには弾性材か
らなる円環状の緊締部材３が嵌合されている。This is shown in FIG. The shaft member 1 has a proximal end connected to the first universal joint 4 and an outer spline 1a formed on the outer periphery on the distal end side. On the other hand, the pipe member 2 has its proximal end connected to the second universal joint 5 and has an inner spline 2a formed on the inner periphery on the distal end side. In addition, four slits 2b are formed in the distal end portion of the pipe member 2 along the axial direction, and an annular groove 2c is formed on the outer periphery near the distal end edge to prevent the tightening member 3 from coming off. I have. An annular tightening member 3 made of an elastic material is fitted in the annular groove 2c.
【０００４】パイプ部材２の先端部は、上述の４本のス
リット２ｂが形成されていることに基づいて内側への変
形が可能となっており、緊締部材３によって先端部が締
められることで、外スプライン１ａや内スプライン２ａ
が摩耗している場合でも、両者間のガタが少なくなる。[0004] The tip of the pipe member 2 can be deformed inward based on the formation of the four slits 2b described above. Outer spline 1a or inner spline 2a
Even if is worn, play between them is reduced.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上述の
従来技術によると、パイプ部材２は、その先端縁近傍の
外周面の全周にわたって、緊締部材３の抜け止めとして
の環状溝２ｃが形成されていることに起因して、内スプ
ライン２ａの加工精度が低下しがちであるという問題が
あった。However, according to the above-mentioned prior art, the pipe member 2 is formed with an annular groove 2c as a retaining member for the tightening member 3 over the entire periphery of the outer peripheral surface near the distal end edge. Therefore, there is a problem that the processing accuracy of the inner spline 2a tends to decrease.
【０００６】パイプ部材２の加工は、環状溝２ｃ、
内スプライン２ａ、スリット２ｂの順で行った場合、
のスリット加工時に、内スプライン２ａにバリが発生
してしまい、これを除去するために多く工数が必要とな
る。The pipe member 2 is processed by the annular groove 2c,
When performing in the order of the inner spline 2a and the slit 2b,
During the slit processing, burrs are generated on the inner spline 2a, and many man-hours are required to remove the burrs.
【０００７】そこで、とを入れ替えて、環状溝２
ｃ、スリット２ｂ、内スプライン２ａの加工順と
し、バリ取りの工数をなくすようにしている。[0007] Therefore, by replacing the
The processing order of c, the slit 2b, and the inner spline 2a is set so as to eliminate the man-hour for deburring.
【０００８】ところで、この加工順によると、の内ス
プライン加工時に、で加工したスリット２ｂが開くの
を防止するため、拘束治具によってパイプ部材２の外周
面全体を押える必要がある。By the way, according to this processing order, it is necessary to press the entire outer peripheral surface of the pipe member 2 with a restraining jig in order to prevent the slit 2b processed by the inner spline processing from opening during the inner spline processing.
【０００９】ところが、拘束治具で外周面全体を押えた
場合でも、で加工した環状溝２ｃの底部と、拘束治具
との間には間隙が形成されてしまい、の内スプライン
の加工時に、環状溝２ｃの底部が外側（間隙側）に逃げ
て変形してしまうため、内スプライン２ａの精度の高い
加工を困難なものとしていた。However, even when the entire outer peripheral surface is pressed by the restraining jig, a gap is formed between the bottom of the annular groove 2c machined by the restraining jig and the restraining jig. Since the bottom of the annular groove 2c escapes to the outside (gap side) and is deformed, it is difficult to process the inner spline 2a with high accuracy.
【００１０】このような内スプライン２ａの加工精度の
低下は、パイプ部材２の肉厚が厚い場合には、ほとんど
発生しないが、元々、肉厚が薄く、環状溝２ｃの加工で
さらに肉厚が薄くなる場合には、顕著に現れ大きな問題
となっていた。Such a decrease in the processing accuracy of the inner spline 2a hardly occurs when the wall thickness of the pipe member 2 is large. However, the wall thickness is originally small, and the wall thickness is further increased by processing the annular groove 2c. When it becomes thin, it appears remarkably and is a big problem.
【００１１】本発明は、上述事情に鑑みてなされたもの
であり、緊締部材に抜け止めを施した場合における内ス
プラインの加工精度の低下を防止するようにしたスプラ
イン結合構造を提供することを目的とするものである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spline coupling structure that prevents a reduction in machining accuracy of an inner spline when a tightening member is retained. It is assumed that.
【００１２】[0012]
【課題を解決するための手段】上述の目的を達成するた
めの請求項１の発明は、先端部に軸方向のスリットを有
するとともに先端部内側に内スプラインを有するパイプ
部材に対し、先端部外側に外スプラインを有する軸部材
を挿入して前記パイプ部材と前記軸部材とをスプライン
結合し、前記パイプ部材の先端部外周面を緊締部材で締
めつけて前記内スプラインを前記外スプラインに密着さ
せるスプライン結合構造において、前記パイプ部材は、
先端部外周面に内側に落ち窪んだ係合凹部を間欠的に少
くとも１ケ所有し、前記緊締部材は、弾性を有する環状
部材によって形成された緊締部材本体と、該緊締部材本
体の一部から内側に突出されて前記係合凹部に係脱可能
な係合凸部とを有する、ことを特徴とする。According to a first aspect of the present invention, there is provided a pipe member having an axial slit at a distal end and an inner spline at an inner side of the distal end. A spline connection that inserts a shaft member having an outer spline into the pipe member and spline-connects the pipe member and the shaft member, and tightens an outer peripheral surface of a distal end portion of the pipe member with a tightening member to bring the inner spline into close contact with the outer spline. In the structure, the pipe member includes:
At least one engaging recess intermittently recessed inward on the outer peripheral surface of the distal end portion is intermittently provided, wherein the tightening member is a tightening member body formed of an elastic annular member, and a part of the tightening member body. And an engaging projection protruding inward from the engagement recess and capable of engaging with and disengaging from the engagement recess.
【００１３】上述の請求項１の発明によると、係合凹部
は、例えば、パイプ部材の先端部外周面の全周にわたっ
て形成する必要はなく、緊締部材の少なくとも一部が係
脱することができることを条件に、必要最小限の小さな
ものとすることができる。したがって、前述の従来例に
倣って、パイプ部材の加工順を係合凹部（従来例の環
状溝に相当）、スリット、内スプラインとした場合
でも、の内スプラインの加工時に、係合凹部が外側に
逃げることがほとんどなく、したがって、逃げに起因す
る内スプラインの加工精度の低下を防止することができ
る。According to the first aspect of the present invention, the engaging recess does not need to be formed, for example, over the entire outer peripheral surface of the distal end portion of the pipe member, and at least a part of the tightening member can be disengaged. Under the condition, the minimum required size can be reduced. Therefore, even when the processing order of the pipe member is the engagement concave portion (corresponding to the annular groove of the conventional example), the slit, and the internal spline, the engagement concave portion is formed at the time of processing the internal spline. Thus, the machining accuracy of the inner spline caused by the escape can be prevented from lowering.
【００１４】一方、環状の緊締部材は、係合凸部が設け
あり、これを上述のパイプ部材の係合凹部に係合させる
ことで、パイプ部材からの脱落を防止することができ
る。On the other hand, the annular tightening member is provided with an engaging projection, and by engaging this with the above-mentioned engaging recess of the pipe member, it is possible to prevent the annular tightening member from falling off from the pipe member.
【００１５】[0015]
【発明の実施の形態】以下、図面に沿って、本発明の実
施の形態について説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１６】〈実施の形態１〉図１に、本発明に係るス
プライン結合構造の実施の形態１を示す。なお、同図
は、軸部材及びパイプ部材の軸を含む縦断面図を示して
いる。<First Embodiment> FIG. 1 shows a first embodiment of a spline connection structure according to the present invention. In addition, the same figure has shown the longitudinal cross-sectional view containing the axis | shaft of a shaft member and a pipe member.
【００１７】同図に示すスプライン結合構造は、軸部材
１０と、パイプ部材２０と、緊締部材３０とを備えてい
る。The spline coupling structure shown in FIG. 1 includes a shaft member 10, a pipe member 20, and a tightening member 30.
【００１８】軸部材１０の基端側（図１の左方）には、
第１の自在継手４０が取り付けられており、また、パイ
プ部材２０の基端側（図１の右方）には、第２の自在継
手５０が取り付けられている。At the base end side (left side in FIG. 1) of the shaft member 10,
A first universal joint 40 is attached, and a second universal joint 50 is attached to the base end side (right side in FIG. 1) of the pipe member 20.
【００１９】まず、これら第１、第２の自在継手４０、
５０について簡単に説明し、その後、軸部材１０、パイ
プ部材２０、緊締部材３０の順に詳述する。First, the first and second universal joints 40,
50 will be briefly described, and then the shaft member 10, the pipe member 20, and the tightening member 30 will be described in detail in this order.
【００２０】第１の自在継手４０は、第１の基部４１に
固定された、Ｃ字形の第１のヨーク４２を備えている。
ヨーク４２は、その両端部においてベアリング４３、４
３を介して、第１の十字継手４４の一方の軸を回動自在
に支持している。第１の十字継手４４の他方の軸は、第
２のヨーク４５を回動自在に支持している。本発明の主
要構成部材の１つである軸部材１０は、その基端部が、
この第２のヨーク４５に固定されている。The first universal joint 40 includes a C-shaped first yoke 42 fixed to the first base 41.
The yoke 42 has bearings 43, 4 at both ends.
One shaft of the first cross joint 44 is rotatably supported via 3. The other shaft of the first cross joint 44 rotatably supports the second yoke 45. The shaft member 10, which is one of the main components of the present invention, has a base end,
It is fixed to the second yoke 45.
【００２１】第２の自在継手５０は、パイプ部材２０の
基端部に取り付けられた円筒状の弾性緩衝筒５１を備え
ている。弾性緩衝筒５１は、パイプ部材２０の基端部
を、軸に直角な方向に貫通するトルクストッパ部材５２
によって貫通されており、トルクストッパ部材５２は第
３のヨーク５３にスキマをもって貫通されている。つま
り、この第３のヨーク５３は、弾性緩衝筒５１を介して
パイプ部材２０の基端部を保持するとともに、パイプ部
材２０にトルク伝達するものである。第３のヨーク５３
は、その両端部においてベアリング５４、５４を介し
て、第２の十字軸５５の一方の軸を回動自在に支持して
おり、第２の十字軸５５の他方の軸は、ベアリングを介
して第４のヨーク５６を回動自在に支持している。The second universal joint 50 has a cylindrical elastic cushioning cylinder 51 attached to the base end of the pipe member 20. The elastic buffer cylinder 51 is provided with a torque stopper member 52 that penetrates the base end of the pipe member 20 in a direction perpendicular to the axis.
The torque stopper member 52 penetrates the third yoke 53 with a clearance. That is, the third yoke 53 holds the base end of the pipe member 20 via the elastic buffer cylinder 51 and transmits torque to the pipe member 20. Third yoke 53
Supports one end of a second cross shaft 55 rotatably via bearings 54 at both ends thereof, and the other shaft of the second cross shaft 55 is supported by bearings. The fourth yoke 56 is rotatably supported.
【００２２】上述の第２の自在継手５０は、例えば、自
動車において、ステアリングコラム５７に連結され、一
方、第１の自在継手４０は、ステアリングギヤ４６に連
結されている。そして、ステアリングコラム５７の回転
は、第２の自在継手５０、パイプ部材２０、軸部材１
０、第１の自在継手４０を介してステアリングギヤ４６
に伝達されるようになっている。The above-mentioned second universal joint 50 is connected to a steering column 57 in an automobile, for example, while the first universal joint 40 is connected to a steering gear 46. The rotation of the steering column 57 is controlled by the second universal joint 50, the pipe member 20, and the shaft member 1.
0, the steering gear 46 via the first universal joint 40
It is transmitted to.
【００２３】つづいて、軸部材１０、パイプ部材２０、
緊締部材３０について詳述する。Subsequently, the shaft member 10, the pipe member 20,
The tightening member 30 will be described in detail.
【００２４】軸部材１０は、基端側に上述の第１の自在
継手４０が連結されており、また、先端側の外周面（外
側）には外スプライン１１が形成されている。The above-mentioned first universal joint 40 is connected to the base end of the shaft member 10, and an outer spline 11 is formed on the outer peripheral surface (outside) on the distal end side.
【００２５】パイプ部材２０は、基端側に上述の第２の
自在継手５０が連結されており、また、先端側の内周面
（内側）には内スプライン２１が形成されている。内ス
プライン２１は、パイプ部材２０の全長（軸方向の長
さ）のほぼ半分だけ形成されている。パイプ部材２０の
先端部には、軸方向に沿って４本のスリット２２が形成
されている。また、４本のスリット２２は、パイプ部材
２０に後述の緊締部材３０を嵌合させた状態を示す図
２、図３（図３は、図２のＡ−Ａ線矢視図。）に図示す
るように、パイプ部材２０を周方向に４等分する位置に
設けられている。さらに、これら４本のスリット２２の
うちの１本のスリット２２には、パイプ部材２０の先端
縁近傍に、係合凹部２３、２４が形成されている。係合
凹部２３、２４は、スリット２２の周方向の端縁（軸に
沿った方向の端縁）２２ａ、２２ｂの先端側における相
互に対向する位置に、それぞれ周方向に幅Ｗ２ 、軸方
向に長さＬ２ だけ切り欠くようにして形成されてい
る。この幅Ｗ２ は、後述の緊締部材３０の厚さＷ１
よりも少し大きく（Ｗ2＞Ｗ1）、また長さＬ2は、同じ
く緊締部材３０の軸方向の長さＬ1よりも少し大きく
（Ｌ2＞Ｌ1）設定されている。さらに、本実施の形態に
おいては、係合凹部２３、２４は、パイプ部材２０をそ
の厚さ方向に貫通するようにして形成されている。The pipe member 20 has the above-mentioned second universal joint 50 connected to the base end side, and has an inner spline 21 formed on the inner peripheral surface (inside) on the distal end side. The inner spline 21 is formed substantially in half of the entire length (length in the axial direction) of the pipe member 20. Four slits 22 are formed at the tip of the pipe member 20 along the axial direction. Further, the four slits 22 are shown in FIGS. 2 and 3 (FIG. 3 is a view taken along line AA of FIG. 2) showing a state in which a tightening member 30 described later is fitted to the pipe member 20. So that the pipe member 20 is divided into four equal parts in the circumferential direction. Further, in one of the four slits 22, engagement recesses 23 and 24 are formed near the leading edge of the pipe member 20. The engaging recesses 23 and 24 are respectively provided with a width W2 in the circumferential direction and a width W2 in the axial direction at positions opposed to each other on the distal end sides of the circumferential edges (the edges along the axis) 22a and 22b of the slit 22. It is formed so as to be cut out by the length L2. The width W2 is equal to the thickness W1 of the tightening member 30 described later.
Slightly larger than (W 2> W 1), and the length L 2 is also slightly greater than the axial length L 1 of the tightening member 30 (L 2> L 1) setting. Further, in the present embodiment, the engagement recesses 23 and 24 are formed so as to penetrate the pipe member 20 in the thickness direction.
【００２６】緊締部材３０は、図４（ａ）、（ｂ）の単
品図に示すように、一部に切欠３１を有する円環状の部
材であり、緊締部材本体３０Ａと、後述の係合凸部３
３、３４とによって構成されている。緊締部材３０の軸
方向の長さＬ1は、上述の係合凹部２３、２４（図２参
照）の軸方向の長さＬ2よりも少し小さく設定されてい
る。緊締部材３０は、切欠３１において両端縁がそれぞ
れ内側に屈曲されて係合凸部３３、３４を構成してい
る。この係合凸部３３、３４の長さＴ1は、上述の係合
凹部２３、２４の深さＴ2（パイプ部材２０の肉厚とほ
ぼ同じ）とほぼ同じか小さく設定されている。緊締部材
３０全体は、例えば、金属板のプレス加工によって形成
されており、適度に弾性変形することができるようにな
っている。As shown in FIGS. 4A and 4B, the tightening member 30 is an annular member having a notch 31 in a part thereof. Part 3
3 and 34. The axial length L 1 of the tightening member 30 is set to be slightly smaller than the axial length L 2 of the above-described engagement recesses 23 and 24 (see FIG. 2). Both ends of the tightening member 30 at the notch 31 are bent inward to form the engaging projections 33 and 34. The length T 1 of the engaging projections 33, 34 is set to be substantially the same as or smaller than the depth T 2 of the engaging recesses 23, 24 (substantially the same as the wall thickness of the pipe member 20). The entire tightening member 30 is formed, for example, by pressing a metal plate, and can be appropriately elastically deformed.
【００２７】上述構成の、スプライン結合構造は、次の
ようにして組み立てる。The spline coupling structure having the above configuration is assembled as follows.
【００２８】軸部材１０の基端側の小径部（外スプライ
ン１１が形成されていない部分）に緊締部材３０を遊嵌
させる。The tightening member 30 is loosely fitted to a small diameter portion (a portion where the outer spline 11 is not formed) on the base end side of the shaft member 10.
【００２９】第１の自在継手４０と第２の自在継手５０
の位相を合わせた状態で、パイプ部材２０の先端から軸
部材１０を挿入して、内スプライン２１に外スプライン
１１を係合させる。その後、緊締部材３０の切欠３１を
開くようにして、パイプ部材２０の外周に嵌め、パイプ
部材２０のスリット２２の先端縁近傍の係合凹部２３、
２４に、緊締部材３０の係合凸部３３、３４を係合させ
る。こうして緊締部材３０によってパイプ部材２０をそ
の外周側から締め付け、内周側の内スプライン２１を軸
部材１０の外スプライン１１に密着させて、内スプライ
ン２１と外スプライン１１との間のガタをなくすことが
できる。または、予めパイプ部材２０に緊締部材３０を
装着後、軸部材１０を圧入してもよい。First universal joint 40 and second universal joint 50
In this state, the shaft member 10 is inserted from the tip of the pipe member 20, and the outer spline 11 is engaged with the inner spline 21. Thereafter, the notch 31 of the tightening member 30 is opened, and the notch 31 is fitted to the outer periphery of the pipe member 20.
The engagement projections 33 and 34 of the tightening member 30 are engaged with the engagement member 24. In this way, the pipe member 20 is tightened from the outer peripheral side by the tightening member 30, and the inner spline 21 on the inner peripheral side is brought into close contact with the outer spline 11 of the shaft member 10, so that there is no play between the inner spline 21 and the outer spline 11. Can be. Alternatively, the shaft member 10 may be press-fitted after attaching the tightening member 30 to the pipe member 20 in advance.
【００３０】以上の組立作業により、図１〜図３に示す
状態となる。この状態において、緊締部材３０は、その
係合凸部３３、３４が、パイプ部材２０の係合凹部２
３、２４に係合されているので、パイプ部材２０から脱
落することはない。By the above assembling operation, the state shown in FIGS. 1 to 3 is obtained. In this state, the tightening member 30 has its engaging projections 33 and 34
Since it is engaged with 3, 24, it does not fall off from the pipe member 20.
【００３１】さらに、本実施の形態においては、パイプ
部材２０の係合凹部２３、２４を上述のように形成した
ので、パイプ部材２０の内スプライン２１の加工精度を
向上させることができる。すなわち、パイプ部材２０の
加工順を、スリット２２及び係合凹部２３、２４を加工
した後に、拘束治具（不図示）によってパイプ部材２０
の外周面全体を拘束しながら内スプライン２１を加工す
るように設定した場合においても、内スプライン２１の
加工時に、係合凹部２３、２４が外側に逃げることがほ
とんどなく、したがって、逃げに起因する内スプライン
２１の加工精度の低下を防止することができる。Further, in the present embodiment, since the engagement recesses 23 and 24 of the pipe member 20 are formed as described above, the processing accuracy of the inner spline 21 of the pipe member 20 can be improved. That is, the processing order of the pipe member 20 is determined by processing the slit 22 and the engagement recesses 23 and 24 and then using a restraining jig (not shown).
Even when the inner spline 21 is set to be processed while constraining the entire outer peripheral surface thereof, the engagement recesses 23 and 24 hardly escape to the outside during the processing of the inner spline 21. The processing accuracy of the inner spline 21 can be prevented from lowering.
【００３２】本発明の特徴である上述の係合凹部２３、
２４は、例えば、パイプ部材２０のスリット２２をプレ
ス加工によって打ち抜く際に同時に加工することが可能
である。したがって、係合凹部２３、２４を形成するた
めの特別な工程は設ける必要がなく、このことによっ
て、加工工数の低減を図ることができる。The above-mentioned engaging recess 23 which is a feature of the present invention,
24 can be processed simultaneously with, for example, punching out the slit 22 of the pipe member 20 by press working. Therefore, it is not necessary to provide a special step for forming the engagement recesses 23 and 24, and this can reduce the number of processing steps.
【００３３】なお、上述では、係合凹部２３、２４とし
て、パイプ部材２０を肉厚方向に貫通する例を説明した
が、これに限らず、緊締部材３０の係合凸部３３、３４
が有効に係合することができることを条件に、パイプ部
材２０の外周面から内側に落ち窪んだような形状の係合
凹部２３、２４とするようにしてもよい。In the above description, an example has been described in which the engagement recesses 23 and 24 penetrate the pipe member 20 in the thickness direction. However, the present invention is not limited to this, and the engagement protrusions 33 and 34 of the tightening member 30 are provided.
May be formed on the condition that they can be effectively engaged with each other.
【００３４】また、パイプ部材２０側の係合凹部、及び
緊締部材３０側の係合凸部をそれぞれ１つずつとするこ
とも可能である。It is also possible to provide one engagement recess on the pipe member 20 side and one engagement projection on the tightening member 30 side.
【００３５】さらに、上述では、緊締部材３０を板状で
あるものとして説明したが、これを線状、すなわちその
軸方向の長さＬ1を短くして、その厚さＷ1とほぼ同じと
するようにしてもよい。ただし、この場合には、パイプ
部材２０の係合凹部２３、２４の軸方向の長さＬ2も同
様に短くするものとする。Further, in the above description, the tightening member 30 is described as having a plate shape. However, the tightening member 30 has a linear shape, that is, the length L 1 in the axial direction is shortened, and is substantially the same as the thickness W 1. You may make it. However, in this case, the axial length L 2 of the engaging recesses 23, 24 of the pipe member 20 is also intended to reduce as well.
【００３６】〈実施の形態２〉上述の実施の形態１にお
いては、パイプ部材２０側の係合凹部２３、２４は、４
本あるスリット２２のうちの１本にのみ形成したが、残
りの３本の内の１本、又は２本、又は３本全部に同様の
係合凹部２３、２４を形成するようにしてもよい。この
場合、パイプ部材２０に対する軸部材１０の挿入後にお
いて、パイプ部材２０の外周に緊締部材３０を嵌合させ
る際に、緊締部材３０の係合凸部３３、３４を、最も近
いスリット２２の係合凹部２３、２４に係合させること
ができるので、その分、組立が容易となる。<Second Embodiment> In the first embodiment, the engaging recesses 23 and 24 on the pipe member 20 side are
Although only one of the slits 22 is formed, similar engagement recesses 23 and 24 may be formed in one, two, or all three of the remaining three slits. . In this case, after the shaft member 10 is inserted into the pipe member 20, when the tightening member 30 is fitted to the outer periphery of the pipe member 20, the engaging protrusions 33 and 34 of the tightening member 30 are engaged with the nearest slit 22. Since it can be engaged with the mating recesses 23 and 24, the assembly is made easier.
【００３７】〈実施の形態３〉図５（ａ）、（ｂ）に、
実施の形態１で説明したパイプ部材２０の係合凹部２
３、２４に対して適用可能な、他の緊締部材６０を示
す。<Embodiment 3> FIGS. 5A and 5B show:
Engaging recess 2 of pipe member 20 described in the first embodiment
3 shows another clamping member 60 applicable to 3, 24;
【００３８】同図に示す緊締部材６０は、係合凸部６３
を、切欠６１には設けず、緊締部材本体６０Ａにおける
切欠６１とほぼ対向する位置に形成している。この係合
凸部６３は、係合凹部２３、２４及びスリット２２に嵌
め込まれるようになっている。言い換えると、実施の形
態１における２つの係合凸部３３、３４を連結し、この
ように連結構造としたため、他に切欠６１を設けたもの
である。The tightening member 60 shown in FIG.
Is not provided in the notch 61, but is formed at a position substantially opposed to the notch 61 in the tightening member main body 60A. The engaging protrusion 63 is adapted to be fitted into the engaging recesses 23 and 24 and the slit 22. In other words, the two engaging projections 33 and 34 in the first embodiment are connected to each other, and thus the connection structure is used, so that a cutout 61 is additionally provided.
【００３９】本実施の形態においても、実施の形態１と
ほぼ同様の効果をあげることができる。In the present embodiment, substantially the same effects as in the first embodiment can be obtained.
【００４０】〈実施の形態４〉図６、図７、図８
（ａ）、（ｂ）に、実施の形態４を示す。<Embodiment 4> FIGS. 6, 7, and 8
(A) and (b) show a fourth embodiment.
【００４１】本実施の形態においては、２本のスリット
２２の間に係合凹部２５を設け、これに合わせて、緊締
部材７０の形状を変更している。In the present embodiment, the engaging recess 25 is provided between the two slits 22, and the shape of the tightening member 70 is changed accordingly.
【００４２】すなわち、パイプ部材２０の２本のスリッ
ト２２の間に、緊締部材７０の軸方向の長さＬ3よりも
直径の小さい透孔を穿孔し、これを係合凹部２５とす
る。そして、緊締部材７０には、この係合凹部２５と係
合可能な、ほぼ円形のクレータ状の係合凸部７３を形成
するのである。That is, a through hole having a diameter smaller than the axial length L 3 of the tightening member 70 is formed between the two slits 22 of the pipe member 20, and this is used as the engaging recess 25. A substantially circular crater-shaped engaging projection 73 that can engage with the engaging recess 25 is formed on the tightening member 70.
【００４３】本実施の形態において、切欠７１は、上述
の実施の形態３とほぼ同様に、係合凸部７３にほぼ対向
する位置に設けている。In the present embodiment, the notch 71 is provided at a position substantially opposed to the engaging projection 73, similarly to the third embodiment.
【００４４】本実施の形態においても、実施の形態１と
ほぼ同様の効果をあげることができる。In the present embodiment, substantially the same effects as in the first embodiment can be obtained.
【００４５】[0045]
【発明の効果】以上説明したように、本発明によると、
係合凹部は、例えば、パイプ部材の先端部外周面の全周
にわたって形成する必要はなく、緊締部材が係脱するこ
とができることを条件に、必要最小限の小さなものとす
ることができる。したがって、パイプ部材の加工順を、
係合凹部及びスリットの加工後に、内スプラインを加工
するように設定した場合でも、内スプラインの加工時
に、係合凹部が外側に逃げることがほとんどなく、した
がって、逃げに起因する内スプラインの加工精度の低下
を有効に防止することができる。As described above, according to the present invention,
The engagement recess need not be formed, for example, over the entire outer peripheral surface of the distal end portion of the pipe member, and can be made as small as possible, provided that the tightening member can be disengaged. Therefore, the processing order of the pipe members
Even when the inner spline is set to be processed after the engagement concave portion and the slit are processed, the engagement concave portion hardly escapes outward during the processing of the inner spline, and therefore, the processing accuracy of the inner spline caused by the escape. Can be effectively prevented.
【図１】本発明の実施の形態１のスプライン結合構造の
軸を含む縦断面図である。FIG. 1 is a longitudinal sectional view including a shaft of a spline connection structure according to a first embodiment of the present invention.
【図２】実施の形態１における、パイプ部材と緊締部材
との嵌合状態を示す図である。FIG. 2 is a diagram showing a fitting state between a pipe member and a tightening member according to the first embodiment.
【図３】図２のＡ−Ａ線矢視図である。FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;
【図４】（ａ）は実施の形態１における緊締部材を軸方
向から見た図である。（ｂ）は実施の形態１における緊
締部材を（ａ）の右方向から見た図である。FIG. 4A is a diagram of the tightening member according to the first embodiment as viewed from an axial direction. (B) is a diagram of the tightening member according to Embodiment 1 as viewed from the right side of (a).
【図５】（ａ）は本発明の実施の形態３における緊締部
材を軸方向から見た図である。（ｂ）は実施の形態３に
おける緊締部材を（ａ）の右方向から見た図である。FIG. 5 (a) is a diagram of a tightening member according to Embodiment 3 of the present invention as viewed from an axial direction. (B) is a figure which looked at the tightening member in Embodiment 3 from the right direction of (a).
【図６】本発明の実施の形態４における、パイプ部材と
緊締部材との嵌合状態を示す図である。FIG. 6 is a diagram showing a fitting state between a pipe member and a tightening member according to a fourth embodiment of the present invention.
【図７】図６のＢ−Ｂ線矢視図である。FIG. 7 is a view taken along line BB of FIG. 6;
【図８】（ａ）は実施の形態４における緊締部材を軸方
向から見た図である。（ｂ）は実施の形態４における緊
締部材を（ａ）の右方向から見た図である。FIG. 8A is a diagram of a tightening member according to a fourth embodiment viewed from an axial direction. (B) is a diagram of the tightening member according to Embodiment 4 as viewed from the right in (a).
【図９】従来のスプライン結合構造の軸を含む縦断面図
である。FIG. 9 is a longitudinal sectional view including a shaft of a conventional spline connection structure.
１０ 軸部材 １１ 外スプライン ２０ パイプ部材 ２１ 内スプライン ２２ スリット ２３、２４、２５係合凹部 ３０、６０、７０緊締部材 ３０Ａ、６０Ａ、７０Ａ緊締部材本体 ３３、３４、６３、７３係合凸部 DESCRIPTION OF SYMBOLS 10 Shaft member 11 Outer spline 20 Pipe member 21 Inner spline 22 Slit 23, 24, 25 Engagement concave part 30, 60, 70 tightening member 30A, 60A, 70A tightening member main body 33, 34, 63, 73 Engagement convex part
Claims (1)
もに先端部内側に内スプラインを有するパイプ部材に対
し、先端部外側に外スプラインを有する軸部材を挿入し
て前記パイプ部材と前記軸部材とをスプライン結合し、
前記パイプ部材の先端部外周面を緊締部材で締めつけて
前記内スプラインを前記外スプラインに密着させるスプ
ライン結合構造において、 前記パイプ部材は、先端部外周面に内側に落ち窪んだ係
合凹部を間欠的に少くとも１ケ所有し、 前記緊締部材は、弾性を有する環状部材によって形成さ
れた緊締部材本体と、該緊締部材本体の一部から内側に
突出されて前記係合凹部に係脱可能な係合凸部とを有す
る、 ことを特徴とするスプライン結合構造。1. A pipe member having an axial spline at the distal end and having an inner spline inside the distal end is inserted with a shaft member having an outer spline outside the distal end to form the pipe member and the shaft member. And spline join
In a spline coupling structure in which the inner spline is tightly attached to the outer spline by tightening the outer peripheral surface of the distal end portion of the pipe member with a tightening member, the pipe member has an intermittently formed engagement recess which is inwardly recessed on the outer peripheral surface of the distal end portion. The tightening member includes a tightening member body formed of an elastic annular member, and a member protruding inward from a part of the tightening member body and capable of engaging and disengaging with the engaging recess. A spline coupling structure having a mating convex portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16781498A JPH11344044A (en) | 1998-06-02 | 1998-06-02 | Spline coupling structure |
| DE19912247A DE19912247A1 (en) | 1998-03-26 | 1999-03-18 | Automotive steering wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16781498A JPH11344044A (en) | 1998-06-02 | 1998-06-02 | Spline coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11344044A true JPH11344044A (en) | 1999-12-14 |
Family
ID=15856605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16781498A Withdrawn JPH11344044A (en) | 1998-03-26 | 1998-06-02 | Spline coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11344044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100723718B1 (en) * | 2002-04-24 | 2007-05-30 | 주식회사 만도 | Serration apparatus for joint shaft |
-
1998
- 1998-06-02 JP JP16781498A patent/JPH11344044A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100723718B1 (en) * | 2002-04-24 | 2007-05-30 | 주식회사 만도 | Serration apparatus for joint shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050802 |