JP2006300244A - Rotating shaft - Google Patents

Rotating shaft Download PDF

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Publication number
JP2006300244A
JP2006300244A JP2005124263A JP2005124263A JP2006300244A JP 2006300244 A JP2006300244 A JP 2006300244A JP 2005124263 A JP2005124263 A JP 2005124263A JP 2005124263 A JP2005124263 A JP 2005124263A JP 2006300244 A JP2006300244 A JP 2006300244A
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Prior art keywords
shaft
pressing
fitting
rotating shaft
shaft body
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JP2005124263A
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Japanese (ja)
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Shuzo Hiragushi
周三 平櫛
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JTEKT Corp
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JTEKT Corp
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Priority to JP2005124263A priority Critical patent/JP2006300244A/en
Publication of JP2006300244A publication Critical patent/JP2006300244A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/03—Shafts; Axles telescopic

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  • Steering Controls (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating shaft capable of preventing relative rattling of a shaft body and a cylindrical body for a long period without affected by abrasion of a pressing body, and improving rigidity of a fitting portion to the cylindrical body, of the shaft body. <P>SOLUTION: Inclined faces 21, 31 inclined to the axial direction and kept into contact with each other are formed on one end of the shaft body 2 axially movably fitted to the cylindrical body 1 and rotated integrally with the cylindrical body 1, and a pressing body 3 for pressing the shaft body 2 to one side of an inner peripheral face of the cylindrical body 1, a bolt 4 axially extending from a central portion of the inclined face 21 is mounted on the inclined face 21 of the shaft body 2, a fitting hole 32 for slidably fitting the bolt 4 is formed on the pressing body 3, and a disc spring 8 is mounted for energizing the pressing body 3 toward the inclined face 21 of the shaft body 2, thus the pressing body 3 and the shaft body 2 are radially deflected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は筒体に軸長方向への移動を自在に嵌入され、前記筒体と一体に回転すべき軸体を備える回転軸に関する。   The present invention relates to a rotary shaft including a shaft body that is fitted into a cylinder body so as to be freely movable in the axial length direction and to rotate integrally with the cylinder body.

ステアリングホイールの操作力を車両の左右の操向輪間に配置された舵取機構に伝動して操舵するための車両用操舵装置に用いられる回転軸は、ステアリングホイール及び舵取機構の一方に繋がる筒体と、該筒体に軸長方向への移動を自在に、且つ一体回転するように嵌入され、他方に繋がる軸体と、該軸体の筒体への嵌入部を筒体の内周面に押圧する押圧体とを備え、該押圧体により軸体及び筒体の相対的なガタつきを防ぐように構成されている（例えば、特許文献１参照。）。   The rotating shaft used in the vehicle steering device for transmitting the steering wheel operating force to the steering mechanism disposed between the left and right steering wheels of the vehicle for steering is connected to one of the steering wheel and the steering mechanism. A cylindrical body, a shaft body that is inserted into the cylindrical body so as to freely move in the axial length direction and integrally rotate, and is connected to the other, and a fitting portion of the shaft body into the cylindrical body is connected to the inner periphery of the cylindrical body A pressing body that presses against the surface, and the pressing body is configured to prevent relative backlash between the shaft body and the cylinder (see, for example, Patent Document 1).

前記軸体の筒体への嵌入部には環状溝が設けられており、また、前記押圧体は、略Ｃ字形をなす筒部材の複数の長手方向位置にスリットを有し、且つ中央部に湾曲凸部を有しており、前記環状溝に外嵌され、前記湾曲凸部が筒体の内周面に弾力的に接触することにより、押圧体の弾性復元力を軸体に加え、該軸体を筒体の内周面に押圧し、軸体及び筒体の相対的なガタつきを防いでいる。
特開２００１−１５８３６４号公報 An annular groove is provided in the insertion portion of the shaft body into the cylindrical body, and the pressing body has slits at a plurality of longitudinal positions of a substantially C-shaped cylindrical member, and in the central portion. Having a curved convex portion, fitted into the annular groove, and elastically contacting the inner peripheral surface of the cylindrical body with the curved convex portion, thereby applying an elastic restoring force of the pressing body to the shaft body; The shaft body is pressed against the inner peripheral surface of the cylindrical body to prevent relative backlash between the shaft body and the cylindrical body.
JP 2001-158364 A

ところが、特許文献１の回転軸は、軸体の筒体への嵌入部に設けられた環状溝に略Ｃ字形をなす押圧体が外嵌されており、該押圧体の湾曲凸部が筒体の内周面に接触しているから、筒体及び軸体が軸長方向へ相対移動するとき、押圧体が筒体の内周面に接触した状態で筒体に対して摺動することになり、該押圧体の筒体との接触部（湾曲凸部）が摩耗し易い。ところが、押圧体は、軸体を筒体の内周面に押圧すべき押圧力を得るための撓み代が軸体のラジアル方向に設定されているため、筒体の内周面に接触する湾曲凸部の摩耗が進行した場合には、撓み代の減少度合いが大きく、押圧力が大きく低下してガタつきを防ぐ効果を十分に発揮できない虞がある。   However, in the rotating shaft of Patent Document 1, a substantially C-shaped pressing body is externally fitted into an annular groove provided in a fitting portion of the shaft body into the cylindrical body, and the curved convex portion of the pressing body is a cylindrical body. When the cylinder and the shaft are relatively moved in the axial length direction, the pressing body is slid with respect to the cylinder while being in contact with the inner circumference of the cylinder. Therefore, the contact portion (curved convex portion) of the pressing body with the cylindrical body is likely to be worn. However, since the bending allowance for obtaining a pressing force to press the shaft against the inner peripheral surface of the cylindrical body is set in the radial direction of the shaft, the pressing body is curved in contact with the inner peripheral surface of the cylindrical body. When the wear of the convex part progresses, there is a possibility that the degree of reduction of the bending allowance is large, and the effect of preventing the rattling is not sufficiently exhibited because the pressing force is greatly reduced.

本発明は斯かる事情に鑑みてなされたものであり、主たる目的は押圧体の摩耗に影響されることなく長期間に亘って軸体及び筒体の相対的なガタつきを防ぐことができ、しかも、軸体の筒体への嵌入部分の剛性を高めることができる回転軸を提供することにある。   The present invention has been made in view of such circumstances, and the main purpose is to prevent relative backlash between the shaft body and the cylinder over a long period of time without being affected by wear of the pressing body, And it is providing the rotating shaft which can improve the rigidity of the insertion part to the cylinder of a shaft.

第１発明に係る回転軸は、筒体に軸長方向への移動を自在に嵌入され、前記筒体と一体に回転すべき軸体と、該軸体を前記筒体の内周面一側に押圧すべき押圧体とを備える回転軸において、前記軸体の一端及び前記押圧体は前記軸長方向に対して傾斜し、互いに接触する傾斜面を有しており、前記軸体及び前記押圧体の一方は、前記傾斜面から前記軸長方向へ延出された嵌合突起を有し、他方は前記嵌合突起が摺動自在に嵌入される嵌入孔を有しており、前記押圧体を前記軸体の接触面に向けて付勢する付勢部材を備えることを特徴とする。   A rotating shaft according to a first aspect of the present invention is fitted into a cylinder body so as to be freely movable in the axial length direction, and a shaft body to be rotated integrally with the cylinder body, and the shaft body on one side of the inner peripheral surface of the cylinder body A rotating shaft including a pressing body to be pressed to the shaft, the one end of the shaft body and the pressing body are inclined with respect to the axial length direction and have inclined surfaces that are in contact with each other. One of the bodies has a fitting protrusion extending from the inclined surface in the axial length direction, and the other has a fitting hole into which the fitting protrusion is slidably fitted, and the pressing body And a biasing member for biasing the shaft toward the contact surface of the shaft body.

第２発明に係る回転軸は、前記嵌合突起は前記軸体に固定されたボルトであり、前記付勢部材は前記ボルトに保持された皿ばね又はコイルばねであることを特徴とする。   The rotating shaft according to a second aspect is characterized in that the fitting protrusion is a bolt fixed to the shaft body, and the biasing member is a disc spring or a coil spring held by the bolt.

第３発明に係る回転軸は、前記嵌合突起は円筒形をなしており、前記付勢部材は前記嵌合突起内に収容されていることを特徴とする。   A rotating shaft according to a third aspect of the present invention is characterized in that the fitting protrusion has a cylindrical shape, and the biasing member is accommodated in the fitting protrusion.

第１発明によれば、軸体及び押圧体の傾斜面が互いに接触している状態で付勢部材により押圧体が軸体の軸長方向へ付勢されているため、軸体及び押圧体の夫々を筒体の内周面に接触させることができ、軸体及び筒体の相対的なガタつきを防ぐことができ、また、押圧体の摩耗に影響されることなく長期間に亘って軸体及び筒体の相対的なガタつきを防ぐことができる。しかも、嵌合突起の嵌入孔への嵌入により軸体及び押圧体の軸長方向と交差する方向への相対移動を制限することができるため、筒体に対して軸体にラジアル方向の荷重が加わる場合においても軸体の筒体への嵌入部の剛性、ひいては回転軸の剛性を高めることができる。   According to the first invention, the pressing body is biased in the axial length direction of the shaft body by the biasing member in a state where the inclined surfaces of the shaft body and the pressing body are in contact with each other. Each of them can be brought into contact with the inner peripheral surface of the cylindrical body, the relative backlash between the shaft body and the cylindrical body can be prevented, and the shaft can be used for a long time without being affected by wear of the pressing body. The relative backlash between the body and the cylinder can be prevented. Moreover, since the relative movement of the shaft body and the pressing body in the direction intersecting the axial length direction can be restricted by fitting the fitting protrusion into the fitting hole, a radial load is applied to the shaft body with respect to the cylindrical body. Even when it is added, the rigidity of the fitting portion of the shaft body into the cylinder, and consequently the rigidity of the rotating shaft can be increased.

第２発明によれば、軸体及び押圧体の傾斜面の面積を比較的多くすることができ、軸体及び押圧体の剛性をより一層高めることができ、また、皿ばね又はコイルばねをボルトに嵌め込むことにより組み込むことができ、組立て作業性を向上できる。   According to the second aspect of the present invention, the areas of the inclined surfaces of the shaft body and the pressing body can be relatively increased, the rigidity of the shaft body and the pressing body can be further increased, and the disc spring or the coil spring can be bolted. It can be assembled by being fitted in, and the assembly workability can be improved.

第３発明によれば、嵌合突起内に付勢部材が収容されているため、押圧体の外部へ付勢部材が突出するのを防ぐことができ、回転軸の全長を短縮することができる。   According to the third invention, since the urging member is accommodated in the fitting protrusion, it is possible to prevent the urging member from protruding to the outside of the pressing body, and to shorten the entire length of the rotating shaft. .

以下本発明をその実施の形態を示す図面に基づいて詳述する。
実施の形態１
図１は本発明に係る回転軸の構成を示す要部の断面図である。 Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
Embodiment 1
FIG. 1 is a cross-sectional view of a main part showing the configuration of a rotating shaft according to the present invention.

図示の回転軸は、筒体１の一端部に軸長方向への移動を自在に嵌入される軸体２と、該軸体２を前記筒体１の内周面に押圧すべき押圧体３とを備える。軸体２及び押圧体３の夫々の一端は、軸体２の軸長方向に対して傾斜し、互いに接触する傾斜面２１，３１が設けられている。   The illustrated rotating shaft includes a shaft body 2 that is freely fitted in one end portion of the cylindrical body 1 so as to freely move in the axial length direction, and a pressing body 3 that presses the shaft body 2 against the inner peripheral surface of the cylindrical body 1. With. One end of each of the shaft body 2 and the pressing body 3 is provided with inclined surfaces 21 and 31 which are inclined with respect to the axial length direction of the shaft body 2 and come into contact with each other.

軸体２は傾斜面２１の中央部に嵌合孔２２が設けられており、該嵌合孔２２に嵌合突起としてのボルト４が圧入され、該ボルト４のねじ部４ａが傾斜面２１の外部へ軸長方向に延出されている。ボルト４は、一端部が非ねじ部４ｂであり、該非ねじ部４ｂが嵌合孔２２に圧入されており、ねじ部４ａにナット５が螺着されている。   The shaft body 2 is provided with a fitting hole 22 in the central portion of the inclined surface 21, and a bolt 4 as a fitting protrusion is press-fitted into the fitting hole 22, and a screw portion 4 a of the bolt 4 is formed on the inclined surface 21. It extends to the outside in the axial direction. One end of the bolt 4 is a non-threaded portion 4b, the non-threaded portion 4b is press-fitted into the fitting hole 22, and a nut 5 is screwed onto the threaded portion 4a.

押圧体３は軸体２とほぼ等径の円柱形をなしており、中心部を貫通し、ボルト４が嵌入される嵌入孔３２が設けられている。この嵌入孔３２には弾性筒６が内嵌され、該弾性筒６内にボルト４が嵌入され、該ボルト４のねじ部４ａの先端が押圧体３の外部に突出しており、該ねじ部４ａの先端にナット５が螺着され、該ナット５及び押圧体３の他端間のねじ部４ａに、摩擦係数が比較的小さい例えば合成樹脂材からなるシート環７及び付勢部材としての皿ばね８が保持されており、該皿ばね８が押圧体３を軸長方向へ付勢している。また、ナット５の操作により皿ばね８の撓み量を調整し、押圧体３の付勢力を調整可能にしてある。   The pressing body 3 has a columnar shape with substantially the same diameter as the shaft body 2, and is provided with a fitting hole 32 through which the bolt 4 is fitted. The elastic cylinder 6 is fitted into the fitting hole 32, and the bolt 4 is fitted into the elastic cylinder 6. The tip of the screw portion 4a of the bolt 4 protrudes outside the pressing body 3, and the screw portion 4a. A nut 5 is screwed to the tip of the nut, and a screw 4a between the nut 5 and the other end of the pressing body 3 has a relatively small friction coefficient, for example, a seat ring 7 made of a synthetic resin material and a disc spring as a biasing member. 8 is held, and the disc spring 8 urges the pressing body 3 in the axial length direction. Further, the bending amount of the disc spring 8 is adjusted by operating the nut 5 so that the urging force of the pressing body 3 can be adjusted.

筒体１の内周部と、軸体２及び押圧体３の夫々の外周部にはセレーション等の凹凸条１ａ，２ａ，３ａが設けられており、凹凸条１ａ，２ａ，３ａが噛合うことにより、軸体２を筒体１と一体に回転させるようになっている。   Concave and convex strips 1a, 2a and 3a such as serrations are provided on the inner peripheral portion of the cylindrical body 1 and the outer peripheral portions of the shaft body 2 and the pressing body 3, and the concave and convex strips 1a, 2a and 3a are engaged with each other. Thus, the shaft body 2 is rotated integrally with the cylindrical body 1.

以上のように構成された回転軸Ａは、例えば車両用操舵装置の部品として用いられる。図２は回転軸が車両用操舵装置に組み込まれた状態を示す模式図である。車両用操舵装置は、ステアリングホイールＢに繋がる上側操舵軸Ｃと、車両の左右の操向輪Ｄ，Ｄ間に配置される舵取機構Ｅに繋がる下側操舵軸Ｆと、上側操舵軸Ｃ及び下側操舵軸Ｆを連動連結する伝動軸Ｇとを備える。   The rotating shaft A configured as described above is used, for example, as a component of a vehicle steering apparatus. FIG. 2 is a schematic view showing a state in which the rotating shaft is incorporated in the vehicle steering apparatus. The vehicle steering apparatus includes an upper steering shaft C connected to the steering wheel B, a lower steering shaft F connected to a steering mechanism E disposed between the left and right steering wheels D of the vehicle, an upper steering shaft C, and And a transmission shaft G for interlockingly connecting the lower steering shaft F.

回転軸Ａ及び筒体１は上側操舵軸Ｃ又は伝動軸Ｇとして用いられる。上側操舵軸Ｃは例えば軸体２の他端がステアリングホイールＢ等の操作部材に繋がり、筒体１の他端が伝動軸Ｇに自在継手により連結され、前記操作部材の運転席に対する前後位置を調節するテレスコピック機構を備える。また、伝動軸Ｇは例えば軸体２の他端が下側操舵軸Ｆに自在継手により連結され、筒体１の他端が舵取機構Ｅに自在継手により連結され、車両走行時の振動等の逆入力による舵取機構と操作部材との相対移動の変位を吸収するように構成される。   The rotating shaft A and the cylinder 1 are used as the upper steering shaft C or the transmission shaft G. In the upper steering shaft C, for example, the other end of the shaft body 2 is connected to an operation member such as a steering wheel B, and the other end of the cylindrical body 1 is connected to the transmission shaft G by a universal joint. It has a telescopic mechanism to adjust. Further, for example, the other end of the shaft body 2 is connected to the lower steering shaft F by a universal joint, and the other end of the cylindrical body 1 is connected to the steering mechanism E by a universal joint so that the transmission shaft G can vibrate when the vehicle travels. The displacement of the relative movement between the steering mechanism and the operating member due to the reverse input of is constructed.

このように軸長方向へ相対移動自在に構成された回転軸Ａ及び筒体１は凹凸条１ａ，２ａ，３ａが嵌合されているため一体に回転する。また、回転軸Ａは、軸体２及び押圧体３の傾斜面２１，３１が互いに接触しており、皿ばね８の付勢力により押圧体３は傾斜面２１に沿って軸長方向へ移動しつつラジアル方向一方へ偏倚し、該押圧体３が筒体１の内周面他側に押圧され、さらに、この押圧により発生する押圧体３の押圧反力が軸体２に加わり、該軸体２が筒体１の内周面一側に押圧される。この押圧により押圧体３及び軸体２と筒体１との間の摩擦抵抗が増加し、軸体２及び筒体１の相対的なガタつきを防ぐことができる。また、押圧体３はボルト４及び嵌入孔３２により軸長方向と交差する方向への相対移動を制限してあるため、筒体１に対して軸体２にラジアル方向の荷重が加わる場合においても軸体２の筒体１への嵌入部の剛性、ひいては回転軸Ａの剛性を高めることができる。また、軸体２にボルト４を圧入により取着してあるため、傾斜面２１，３１の面積を比較的多くすることができ、軸体２及び押圧体３の剛性をより一層高めることができ、また、シート環７及び皿ばね８をボルト４に嵌め込むことにより組み込むことができ、組立て作業性を向上できる。   The rotating shaft A and the cylindrical body 1 configured to be relatively movable in the axial direction in this way rotate integrally because the concave and convex strips 1a, 2a and 3a are fitted. Further, the rotary shaft A has the shaft body 2 and the inclined surfaces 21 and 31 of the pressing body 3 in contact with each other, and the pressing body 3 moves in the axial length direction along the inclined surface 21 by the biasing force of the disc spring 8. The pressing body 3 is biased to one side in the radial direction while the pressing body 3 is pressed to the other side of the inner peripheral surface of the cylindrical body 1, and the pressing reaction force of the pressing body 3 generated by this pressing is applied to the shaft body 2. 2 is pressed to one side of the inner peripheral surface of the cylinder 1. By this pressing, the frictional resistance between the pressing body 3 and the shaft body 2 and the cylinder 1 is increased, and the relative play between the shaft body 2 and the cylinder 1 can be prevented. Moreover, since the press body 3 restrict | limits the relative movement to the direction which cross | intersects an axial length direction with the volt | bolt 4 and the insertion hole 32, even when the radial load is added to the shaft body 2 with respect to the cylinder body 1. The rigidity of the fitting portion of the shaft body 2 into the cylindrical body 1 and consequently the rigidity of the rotating shaft A can be increased. Further, since the bolts 4 are attached to the shaft body 2 by press fitting, the areas of the inclined surfaces 21 and 31 can be relatively increased, and the rigidity of the shaft body 2 and the pressing body 3 can be further increased. In addition, the seat ring 7 and the disc spring 8 can be assembled by being fitted into the bolt 4, so that the assembling workability can be improved.

実施の形態２
図３は回転軸の実施の形態２の要部の構成を示す断面図である。
この回転軸Ａは、嵌合突起としてのボルト４を軸体２の嵌合孔２２に圧入する代わりに、嵌合突起としての頭付ボルト９を軸体２の嵌合孔２２に螺着したものである。頭付ボルト９は、嵌入孔３２に弾性筒６が内嵌された押圧体３の弾性筒６内に嵌入され、ねじ部９ａの先端が嵌合孔２２に螺着されており、頭部９ｂと押圧体３との間にシール環７及び皿ばね８が保持されている。 Embodiment 2
FIG. 3 is a cross-sectional view showing a configuration of a main part of the rotating shaft according to the second embodiment.
In this rotating shaft A, instead of press-fitting the bolt 4 as a fitting protrusion into the fitting hole 22 of the shaft body 2, a headed bolt 9 as a fitting protrusion is screwed into the fitting hole 22 of the shaft body 2. Is. The headed bolt 9 is fitted into the elastic cylinder 6 of the pressing body 3 in which the elastic cylinder 6 is fitted into the insertion hole 32, and the tip of the screw portion 9a is screwed into the fitting hole 22, and the head 9b. A seal ring 7 and a disc spring 8 are held between the pressure member 3 and the pressing body 3.

この実施の形態２にあっては、ナット５をなくすることができ、構造をより一層簡単にできる。
その他の構成及び作用は実施の形態１と同様であるため、同様の部品については同じ符号を付し、その詳細な説明及び作用効果の説明を省略する。 In the second embodiment, the nut 5 can be eliminated, and the structure can be further simplified.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

実施の形態３
図４は回転軸の実施の形態３の要部の構成を示す断面図である。
この回転軸Ａは、実施の形態２の皿ばね８に代えてコイルばね１０を用いたものである。付勢部材としてのコイルばね１０は頭付ボルト９の頭部９ｂとシート環７との間に保持されている。 Embodiment 3
FIG. 4 is a cross-sectional view showing the configuration of the main part of the rotary shaft according to the third embodiment.
The rotating shaft A uses a coil spring 10 instead of the disc spring 8 of the second embodiment. The coil spring 10 as an urging member is held between the head 9 b of the headed bolt 9 and the seat ring 7.

この実施の形態３にあっては、付勢部材の付勢力の調整範囲を広くすることができる。
その他の構成及び作用は実施の形態１と同様であるため、同様の部品については同じ符号を付し、その詳細な説明及び作用効果の説明を省略する。 In the third embodiment, the adjustment range of the urging force of the urging member can be widened.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

実施の形態４
図５は回転軸の実施の形態４の要部の構成を示す断面図である。
この回転軸Ａは嵌合突起としてボルト４，９を用いる代わりに、軸体２の傾斜面２１に軸体２と一体に形成された円筒形をなす嵌合突起１１を設け、該嵌合突起１１内に付勢部材としてのコイルばね１２を収容したものである。 Embodiment 4
FIG. 5 is a cross-sectional view showing a configuration of a main part of the rotating shaft according to the fourth embodiment.
Instead of using bolts 4 and 9 as fitting protrusions, the rotating shaft A is provided with a cylindrical fitting protrusion 11 formed integrally with the shaft body 2 on the inclined surface 21 of the shaft body 2. 11, a coil spring 12 as an urging member is accommodated.

軸体２には傾斜面２１の中央部に収容孔２３及び該収容孔２３に周りから外部へ延出された嵌合突起１１が設けられており、また、収容孔２３の奥部にピン孔２４及び該ピン孔２４に嵌入されたピン１３が設けられている。   The shaft body 2 is provided with a housing hole 23 at the center of the inclined surface 21 and a fitting projection 11 extending from the periphery to the housing hole 23, and a pin hole at the back of the housing hole 23. 24 and a pin 13 fitted in the pin hole 24 are provided.

押圧体３は嵌入孔３２に内嵌された弾性筒６と、該弾性筒６をラジアル方向へ貫通するピン孔３３及び該ピン孔３３に嵌入されたピン１４とを有しており、弾性筒６に嵌合突起１１が嵌入されている。   The pressing body 3 includes an elastic cylinder 6 fitted in the insertion hole 32, a pin hole 33 penetrating the elastic cylinder 6 in the radial direction, and a pin 14 fitted in the pin hole 33. 6 is fitted with a fitting protrusion 11.

コイルばね１２は収容孔２３及び嵌合突起１１に収容される長さを有しており、該コイルばね１２の両端がピン１３，１４に係止されており、コイルばね１２の付勢力により押圧体３を傾斜面２１に付勢している。   The coil spring 12 has a length to be accommodated in the accommodation hole 23 and the fitting protrusion 11, and both ends of the coil spring 12 are locked to the pins 13 and 14, and are pressed by the urging force of the coil spring 12. The body 3 is biased toward the inclined surface 21.

この実施の形態４にあっては、押圧体３の外部へコイルばね１２が突出するのを防ぐことができ、回転軸Ａの全長を短縮できる。
その他の構成及び作用は実施の形態１と同様であるため、同様の部品については同じ符号を付し、その詳細な説明及び作用効果の説明を省略する。 In the fourth embodiment, it is possible to prevent the coil spring 12 from projecting to the outside of the pressing body 3 and to shorten the overall length of the rotating shaft A.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

尚、実施の形態１ではボルト４を嵌合孔２２に圧入したが、その他、ボルト４及び嵌合孔２２をなくし、傾斜面２１の中央部に、嵌入孔３２に嵌入される嵌入軸部を一体に設け、該嵌入軸部の先側にねじ部を設け、該ねじ部にナット５を螺合する構成としてもよい。   Although the bolt 4 is press-fitted into the fitting hole 22 in the first embodiment, the bolt 4 and the fitting hole 22 are eliminated, and a fitting shaft portion that is fitted into the fitting hole 32 is provided at the center portion of the inclined surface 21. It is good also as a structure which provides integrally, a thread part is provided in the front side of this fitting shaft part, and the nut 5 is screwed together in this thread part.

また、以上説明した実施の形態では軸体２に嵌合突起４を設け、押圧体３に嵌入孔３２を設けたが、その他、押圧体３の傾斜面３１に円筒形をなす嵌入凸部を設け、該嵌入凸部が嵌入される嵌入孔を軸体２の傾斜面２１に設ける構成してもよい。この場合、例えば嵌入凸部の外形を嵌入孔３２より小径とし、嵌入孔を嵌合孔２２より大径とし、皿ばね８を支持するためのボルトを嵌合孔２２に圧入する。   Further, in the embodiment described above, the fitting protrusion 4 is provided on the shaft body 2 and the insertion hole 32 is provided on the pressing body 3, but in addition, an insertion convex portion having a cylindrical shape is formed on the inclined surface 31 of the pressing body 3. The insertion hole may be provided in the inclined surface 21 of the shaft body 2 in which the insertion convex portion is inserted. In this case, for example, the outer diameter of the fitting convex portion is made smaller than the fitting hole 32, the fitting hole is made larger than the fitting hole 22, and a bolt for supporting the disc spring 8 is press-fitted into the fitting hole 22.

本発明に係る回転軸の構成を示す要部の断面図である。It is sectional drawing of the principal part which shows the structure of the rotating shaft which concerns on this invention. 本発明に係る回転軸が車両用操舵装置に組み込まれた状態を示す模式図である。It is a schematic diagram which shows the state in which the rotating shaft which concerns on this invention was integrated in the steering apparatus for vehicles. 本発明に係る回転軸の実施の形態２の要部の構成を示す断面図である。It is sectional drawing which shows the structure of the principal part of Embodiment 2 of the rotating shaft which concerns on this invention. 本発明に係る回転軸の実施の形態３の要部の構成を示す断面図である。It is sectional drawing which shows the structure of the principal part of Embodiment 3 of the rotating shaft which concerns on this invention. 本発明に係る回転軸の実施の形態４の要部の構成を示す断面図である。It is sectional drawing which shows the structure of the principal part of Embodiment 4 of the rotating shaft which concerns on this invention.

符号の説明Explanation of symbols

１ 筒体
２ 軸体
２１ 傾斜面
３ 押圧体
３１ 傾斜面
３２ 嵌入孔
４ ボルト（嵌合突起）
９ 頭付ボルト（嵌合突起）
８ 皿ばね（付勢部材）
１０，１２ コイルばね（付勢部材）
１１ 嵌合突起
DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Shaft body 21 Inclined surface 3 Pressing body 31 Inclined surface 32 Insertion hole 4 Bolt (fitting protrusion)
9 Bolt with head (fitting protrusion)
8 Disc spring (biasing member)
10, 12 Coil spring (biasing member)
11 Mating protrusion

Claims (3)

筒体に軸長方向への移動を自在に嵌入され、前記筒体と一体に回転すべき軸体と、該軸体を前記筒体の内周面一側に押圧すべき押圧体とを備える回転軸において、前記軸体の一端及び前記押圧体は前記軸長方向に対して傾斜し、互いに接触する傾斜面を有しており、前記軸体及び前記押圧体の一方は、前記傾斜面から前記軸長方向へ延出された嵌合突起を有し、他方は前記嵌合突起が摺動自在に嵌入される嵌入孔を有しており、前記押圧体を前記軸体の接触面に向けて付勢する付勢部材を備えることを特徴とする回転軸。   A shaft body that is inserted into the cylinder body so as to freely move in the axial length direction and that rotates together with the cylinder body, and a pressing body that presses the shaft body to one side of the inner peripheral surface of the cylinder body are provided. In the rotating shaft, one end of the shaft body and the pressing body are inclined with respect to the axial length direction and have inclined surfaces that are in contact with each other, and one of the shaft body and the pressing body is formed from the inclined surface. The fitting projection extending in the axial direction is provided, and the other has a fitting hole into which the fitting projection is slidably fitted, and the pressing body faces the contact surface of the shaft. A rotating shaft comprising a biasing member that biases. 前記嵌合突起は前記軸体に固定されたボルトであり、前記付勢部材は前記ボルトに保持された皿ばね又はコイルばねである請求項１記載の回転軸。   The rotating shaft according to claim 1, wherein the fitting protrusion is a bolt fixed to the shaft body, and the urging member is a disc spring or a coil spring held by the bolt. 前記嵌合突起は円筒形をなしており、前記付勢部材は前記嵌合突起内に収容されている請求項１記載の回転軸。

The rotating shaft according to claim 1, wherein the fitting protrusion has a cylindrical shape, and the biasing member is accommodated in the fitting protrusion.

JP2005124263A 2005-04-21 2005-04-21 Rotating shaft Pending JP2006300244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005124263A JP2006300244A (en) 2005-04-21 2005-04-21 Rotating shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005124263A JP2006300244A (en) 2005-04-21 2005-04-21 Rotating shaft

Publications (1)

Publication Number Publication Date
JP2006300244A true JP2006300244A (en) 2006-11-02

Family

ID=37468774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005124263A Pending JP2006300244A (en) 2005-04-21 2005-04-21 Rotating shaft

Country Status (1)

Country Link
JP (1) JP2006300244A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892646A (en) * 2010-08-31 2010-11-24 天津市金锚集团有限责任公司 Snow rake and tool bar having anti-loosening accessories thereof
CN102029859A (en) * 2010-11-10 2011-04-27 无锡真木物流设备有限公司 Transmission shaft joint of movable goods shelf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892646A (en) * 2010-08-31 2010-11-24 天津市金锚集团有限责任公司 Snow rake and tool bar having anti-loosening accessories thereof
CN102029859A (en) * 2010-11-10 2011-04-27 无锡真木物流设备有限公司 Transmission shaft joint of movable goods shelf

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