JP3117802U - Torque control mechanism for transmission shaft - Google Patents

Torque control mechanism for transmission shaft Download PDF

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JP3117802U
JP3117802U JP2005008694U JP2005008694U JP3117802U JP 3117802 U JP3117802 U JP 3117802U JP 2005008694 U JP2005008694 U JP 2005008694U JP 2005008694 U JP2005008694 U JP 2005008694U JP 3117802 U JP3117802 U JP 3117802U
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shaft
torque control
control mechanism
transmission shaft
curvature
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新吉 陳
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筌誠機械股▲分▼有限公司
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Abstract

【課題】出力トルクを制限でき、エアー駆動工具と電気駆動工具とに適用できる伝動軸用トルク制御機構を提供する。
【解決手段】第一軸２０と、第二軸３０と、制御組４０とを有する。第二軸は、第一軸と同軸で隣接し、第一軸と回転可能である。制御組は、第一軸と第二軸との枢着箇所の外周に位置し、クラッチ部４１を係合位置に弾性的に保持する定位部４２とから構成され、係合位置と分離位置との間に切替可能であり、係合位置に位置する場合には、クラッチ部により第一軸と第二軸とが一緒に回転し、分離位置に位置する場合には、第一軸と第二軸とが異なる方向又は同じ方向へ回転可能になる。クラッチ部４１には円弧形状の窪み４１１が設けられ、窪みは第二軸の一端部の周面に設けられている。
【選択図】図２Provided is a transmission shaft torque control mechanism that can limit an output torque and can be applied to an air drive tool and an electric drive tool.
A first shaft 20, a second shaft 30, and a control set 40 are provided. The second axis is coaxially adjacent to the first axis and is rotatable with the first axis. The control group is located on the outer periphery of the pivotally attached portion of the first shaft and the second shaft, and includes a positioning portion 42 that elastically holds the clutch portion 41 at the engagement position. The first shaft and the second shaft are rotated together by the clutch portion when positioned at the engaging position, and when positioned at the separating position, the first shaft and the second shaft are switched. The shaft can be rotated in a different direction or the same direction. The clutch portion 41 is provided with an arc-shaped recess 411, and the recess is provided on the peripheral surface of one end of the second shaft.
[Selection] Figure 2

Description

本考案は、伝動軸用トルク制御機構に関するものである。   The present invention relates to a transmission shaft torque control mechanism.

図１と図２を参照する。従来の技術において、伝動軸１の出力トルクを制御又は変更するものは、同軸に設置されたラチェット２とラチェット３の弾性的な噛合いにより、ばねの弾力が耐えられる範囲内に動力を伝達し、もしばねの弾力を超える場合には、ラチェット２とラチェット３の弾性的な噛合いが離脱され、これにより、出力トルクが大きすぎてワークを破壊することを回避する。   Please refer to FIG. 1 and FIG. In the prior art, what controls or changes the output torque of the transmission shaft 1 transmits power within a range in which the elasticity of the spring can withstand due to the elastic engagement of the ratchet 2 and the ratchet 3 installed coaxially. If the elasticity of the spring is exceeded, the elastic meshing between the ratchet 2 and the ratchet 3 is disengaged, thereby preventing the output torque from being too large and destroying the workpiece.

上記従来技術での前記ラチェット２とラチェット３は、噛合位置と離脱位置との間で切替し、切替方向は伝動軸１の軸方向と同様であるので、使用は極めて不便であり、一般的には、動力を伝達するための伝動軸１の一端が動力源と連接し、伝動軸１の他端が動力を必要とするワークと連接し、したがって、実際の操作では、動力源とワークとの間には一定の距離を有し、すなわち、上記距離が長いので、軸方向の運動により出力トルクを制御するものは上記構造を採用することが不向きであり、上記構造を採用すれば、間欠的な往復振動が発生し、この往復振動は部品を破壊する他、作業員の健康にも悪影響を与える恐れがある。   The ratchet 2 and ratchet 3 in the prior art are switched between the meshing position and the disengagement position, and the switching direction is the same as the axial direction of the transmission shaft 1, so that it is very inconvenient to use. Is that one end of the transmission shaft 1 for transmitting power is connected to a power source, and the other end of the transmission shaft 1 is connected to a work that requires power. Since there is a certain distance between them, that is, the distance is long, it is not suitable to adopt the above structure for controlling the output torque by the axial movement. Reciprocating vibration occurs, and this reciprocating vibration destroys parts and may adversely affect the health of workers.

本考案の主な目的は、スムーズな操作状態で出力トルクを制限する効果を有する伝動軸用トルク制御機構を提供する。
本考案の次の目的は、特に、エアー駆動工具と電気駆動工具とに適用できる伝動軸用トルク制御機構を提供する。 A main object of the present invention is to provide a transmission shaft torque control mechanism having an effect of limiting an output torque in a smooth operation state.
The next object of the present invention is to provide a torque control mechanism for a transmission shaft that can be applied particularly to an air drive tool and an electric drive tool.

上記目的を達成するためになされた本考案は、第一軸と、前記第一軸と同軸で隣接し、前記第一軸と異なる方向又は同じ方向へ回転可能な第二軸と、前記第一軸と第二軸との枢着箇所の外周に位置し、クラッチ部と前記クラッチ部を係合位置に弾性的に保持する定位部とから構成され、係合位置と分離位置との間に切替可能であり、係合位置に位置する場合には、前記クラッチ部により第一軸と第二軸とが互いに係って結合して一緒に回転し、なお、分離位置に位置する場合には、第一軸と第二軸とが異なる方向又は同じ方向へ回転可能になる制御組とを含む伝動軸用トルク制御機構において、前記クラッチ部には更に予定深さを有する円弧形状の窪みが若干に設けてあり、前記窪みは前記第二軸の一端部の周面に設けられ、若干の係り玉の玉体の一部が前記窪みに係られ、若干の収容空間は内径が変化可能であり、前記第一軸の一端部に設けられて各窪みとそれぞれ連通し、係り玉の玉体の残り部を収容し、且つ内径を拡大して複数の前記係り玉の外周の直径と少なくとも同じようにすることが可能であることを特徴とする伝動軸用トルク制御機構であることを要旨としている。   The present invention made to achieve the above object includes a first shaft, a second shaft that is coaxially adjacent to the first shaft, is rotatable in a direction different from or in the same direction as the first shaft, and the first shaft. Located on the outer periphery of the pivot joint between the shaft and the second shaft, and is composed of a clutch portion and a positioning portion that elastically holds the clutch portion at the engagement position, and switches between the engagement position and the separation position. In the case where it is located at the engagement position, the first shaft and the second shaft are coupled with each other by the clutch portion and rotated together, and when located at the separation position, In the transmission shaft torque control mechanism including a control set in which the first shaft and the second shaft can rotate in different directions or in the same direction, the clutch portion further has an arc-shaped depression having a predetermined depth. Provided, and the recess is provided on the peripheral surface of one end of the second shaft. A part of the body is engaged with the recess, and the inner diameter of some housing space can be changed, provided at one end of the first shaft and communicating with each recess, respectively, The gist of the present invention is a torque control mechanism for a transmission shaft characterized in that it can be accommodated and the inner diameter can be enlarged so that it is at least the same as the outer diameter of the plurality of engaging balls.

本考案では、前記クラッチ部はリング形状のブッシュと、リング形状の押え体と、テーパ形状の押え面とを有し、前記ブッシュは一端が前記第一軸の一端部と同軸で連接し、他端が前記各窪みの開口端に対応し、前記押え体は同軸で摺動可能に第二軸に嵌められ、前記押え面は前記押え体の一端面に設けられ、前記ブッシュの他端の端面と対向し、前記ブッシュとの間に収容空間が形成されることを特徴とする請求項１に記載の伝動軸用トルク制御機構であることを要旨としている。   In the present invention, the clutch portion has a ring-shaped bush, a ring-shaped presser body, and a tapered presser surface, and one end of the bush is coaxially connected to one end portion of the first shaft. The end corresponds to the opening end of each recess, the presser body is coaxially slidably fitted to the second shaft, the presser surface is provided on one end surface of the presser body, and the other end surface of the bushing The gist is the torque control mechanism for a transmission shaft according to claim 1, wherein a housing space is formed between the bush and the bush.

本考案では、前記クラッチ部は第一転向止め面と第二転向止め面とを有し、前記第一転向止め面と第二転向止め面とは収容空間に位置し、第一軸と第二軸との回転方向の両側にそれぞれ位置することを特徴とする請求項２に記載の伝動軸用トルク制御機構であることを要旨としている。   In the present invention, the clutch portion has a first turning stop surface and a second turning prevention surface, and the first turning prevention surface and the second turning prevention surface are located in the accommodation space, and the first shaft and the second turning stop surface. The gist of the present invention is the torque control mechanism for a transmission shaft according to claim 2, wherein the torque control mechanism is located on both sides of the shaft in the rotational direction.

本考案では、前記第一転向止め面の円弧面の曲率は対応する係り玉の球面の曲率と同様であることを特徴とする請求項３に記載の伝動軸用トルク制御機構であることを要旨としている。
本考案では、前記第二転向止め面の円弧面の曲率は対応する係り玉の球面の曲率よりも小さいことを特徴とする請求項３に記載の伝動軸用トルク制御機構であることを要旨としている。 The present invention provides the torque control mechanism for a transmission shaft according to claim 3, wherein the curvature of the arc surface of the first turning stop surface is the same as the curvature of the spherical surface of the corresponding engaging ball. It is said.
The gist of the present invention is the torque control mechanism for a transmission shaft according to claim 3, wherein the curvature of the arc surface of the second turning stop surface is smaller than the curvature of the spherical surface of the corresponding engaging ball. Yes.

本考案では、前記各窪みは第一転向止め面と同じ方向にある穴壁面に対応し、壁面の曲率は係り玉の球面の曲率よりも小さいことを特徴とする請求項３に記載の伝動軸用トルク制御機構であることを要旨としている。
本考案では、前記定位部は嵌め体と、リング形状の止め体と、少なくとも一つの弾性体とを有し、前記嵌め体は各ブッシュと押え体とに同軸に嵌められ、一端が延長して前記ブッシュの一端面を覆い、前記止め体は第二軸と嵌め体の他端との間に同軸に嵌められ、前記弾性体は止め体と押え体の他端の端面との間に挟まれることを特徴とする請求項２に記載の伝動軸用トルク制御機構であることを要旨としている。 4. The transmission shaft according to claim 3, wherein each of the recesses corresponds to a hole wall surface in the same direction as the first turning stop surface, and the curvature of the wall surface is smaller than the curvature of the spherical surface of the engaging ball. The main point is that it is a torque control mechanism.
In the present invention, the stereotaxic portion includes a fitting body, a ring-shaped stopper, and at least one elastic body, and the fitting body is fitted coaxially to each bush and the pressing body, and one end extends. One end face of the bush is covered, the stopper is fitted coaxially between the second shaft and the other end of the fitting body, and the elastic body is sandwiched between the stopper body and the other end face of the holding body. The gist of the present invention is the transmission shaft torque control mechanism according to claim 2.

本考案では、前記弾性体は円盤形状のパッキンであることを特徴とする請求項７に記載の伝動軸用トルク制御機構であることを要旨としている。
本考案では、前記止め体と嵌め体とは螺着方式により結合することを特徴とする請求項７に記載の伝動軸用トルク制御機構であることを要旨としている。 The gist of the present invention is the transmission shaft torque control mechanism according to claim 7, wherein the elastic body is a disk-shaped packing.
The gist of the present invention is the transmission shaft torque control mechanism according to claim 7, wherein the stopper and the fitting are coupled by a screwing method.

本考案では、前記各窪みの表面の曲率は各窪みに収容される係り玉の球面の曲率と同様であることを特徴とする請求項１に記載の伝動軸用トルク制御機構であることを要旨としている。
本考案に係る伝動軸用トルク制御機構によれば、次のような効果がある。
（イ）スムーズな操作状態で出力トルクを制限する効果を有する。
（ロ）特に、エアー駆動工具と電気駆動工具とに適用できる。 The present invention provides the torque control mechanism for a transmission shaft according to claim 1, wherein the curvature of the surface of each recess is the same as the curvature of the spherical surface of the engaging ball accommodated in each recess. It is said.
The transmission shaft torque control mechanism according to the present invention has the following effects.
(A) It has an effect of limiting the output torque in a smooth operation state.
(B) In particular, the present invention can be applied to air driven tools and electric driven tools.

以下、添付図面を参照して本考案の好適な実施の形態を詳細に説明する。
まず、図３から図８を参照する。本考案の一実施例による伝動軸用トルク制御機構１０は、第一軸２０と、第二軸３０と、制御組４０とから構成されるものである。
前記第一軸２０は、適当な長さを有するロッド体であり、一端の端面に枢着孔２１が凹設してある。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, FIG. 3 to FIG. 8 will be referred to. A transmission shaft torque control mechanism 10 according to an embodiment of the present invention includes a first shaft 20, a second shaft 30, and a control set 40.
The first shaft 20 is a rod body having an appropriate length, and a pivoting hole 21 is recessed in one end face.

前記第二軸３０は、前記第一軸と同軸で隣接し、端部３１が前記枢着孔２１に枢着し、且つ前記第一軸２０と異なる方向又は同じ方向へ回転可能である。
前記制御組４０は、前記第一軸２０と第二軸３０との枢着箇所の外周に位置し、クラッチ部４１と、前記クラッチ部４１を係合位置に弾性的に保持する定位部４２とから構成され、係合位置と分離位置との間に切替可能であり、係合位置に位置する場合には、前記クラッチ部４１により第一軸２０と第二軸３０とが互いに係って結合して一緒に回転し、なお、分離位置に位置する場合には、第一軸２０と第二軸３０とが異なる方向又は同じ方向に回転可能になる。 The second shaft 30 is coaxially adjacent to the first shaft, the end 31 is pivotally mounted on the pivot hole 21, and can be rotated in a different direction or the same direction as the first shaft 20.
The control set 40 is located on the outer periphery of the pivot joint between the first shaft 20 and the second shaft 30, and includes a clutch portion 41 and a positioning portion 42 that elastically holds the clutch portion 41 in the engaged position. The first shaft 20 and the second shaft 30 are coupled to each other by the clutch portion 41 when the clutch is positioned at the engagement position. In the case where the first shaft 20 and the second shaft 30 are located at the separation position, the first shaft 20 and the second shaft 30 can rotate in different directions or in the same direction.

前記クラッチ部４１には予定深さを有する円弧形状の窪み４１１が若干に設けてあり、前記窪み４１１は前記第二軸３０の一端部の周面に等距離に設けられ、開口方向は第二軸３０の軸方向と垂直し、若干の係り玉４１２の玉体の一部が前記窪み４１１に係られ、且つ前記各窪み４１１の表面の曲率は各窪み４１１に収容される係り玉４１２の球面の曲率と同様であり、前記クラッチ部４１は更にリング形状のブッシュ４１３と、若干の円弧形状の欠け口４１４と、リング形状の押え体４１５と、テーパ形状の押え面４１６とを有し、前記ブッシュ４１３は一端が前記第一軸２０の一端部と同軸で連接し、且つ内側の端面が第二軸の一端の周面に当接し、他端が前記各窪み４１１の開口端に対応し、前記欠け口４１４は前記ブッシュ４１３の他端に凹設され、且つ対応の窪み４１１と連通し、前記押え体４１５は同軸で摺動可能に第二軸３０に嵌められ、前記押え面４１６は前記押え体４１５の一端面に設けられ、前記ブッシュ４１３の他端の端面と対向し、前記ブッシュ４１３との間に収容空間Ｓが形成され、且つ前記押え面４１６の軸方向の移動により収容空間Ｓが変更される。   The clutch portion 41 is slightly provided with an arc-shaped recess 411 having a predetermined depth. The recess 411 is provided at an equal distance on the peripheral surface of one end portion of the second shaft 30, and the opening direction is the second direction. A part of the balls of some of the engagement balls 412 is perpendicular to the axial direction of the shaft 30, and the curvature of the surface of each of the recesses 411 is the spherical surface of the engagement ball 412 accommodated in each of the recesses 411. The clutch portion 41 further includes a ring-shaped bush 413, a slight arc-shaped chip 414, a ring-shaped pressing body 415, and a tapered pressing surface 416. One end of the bush 413 is coaxially connected to one end of the first shaft 20, the inner end surface is in contact with the peripheral surface of one end of the second shaft, and the other end corresponds to the opening end of each recess 411. The notch 414 is formed on the bush 413. The presser body 415 is coaxially slidably fitted to the second shaft 30 and is provided on one end surface of the presser body 415. A housing space S is formed between the bush 413 and the other end surface of the bush 413, and the housing space S is changed by the axial movement of the pressing surface 416.

前記各欠け口４１４は軸２０と軸３０の回転方向の両側の壁面にそれぞれ対応し、一つの欠け口４１４は異なる曲率を有し、一側の曲率は対応の係り玉４１２の球面の曲率と同様の第一転向止め面４１４１であり、他側の曲率は対応の係り玉４１２の球面の曲率よりも小さい第二転向止め面４１４２であり、前記各窪み４１１は第一転向止め面４１４１と同じ方向にある穴壁面４１１１に対応し、壁面の曲率は係り玉の球面の曲率よりも小さい。   The respective notches 414 correspond to the wall surfaces on both sides in the rotational direction of the shaft 20 and the shaft 30, respectively, and one notch 414 has a different curvature, and the curvature on one side is the curvature of the spherical surface of the corresponding engaging ball 412. It is the same first turning stop surface 4141, and the curvature on the other side is a second turning prevention surface 4142 smaller than the curvature of the spherical surface of the corresponding engaging ball 412, and each of the recesses 411 is the same as the first turning prevention surface 4141. Corresponding to the hole wall surface 4111 in the direction, the curvature of the wall surface is smaller than the curvature of the spherical surface of the engaging ball.

前記定位部４２は嵌め体４２１と、リング形状の止め体４２２と、少なくとも一つの弾性体４２３とを有し、前記嵌め体４２１は各ブッシュ４１３と押え体４１５とに同軸に嵌められ、一端が延長して前記ブッシュ４１３の一端面を覆い、前記止め体４２２は第二軸３０と嵌め体４２１の他端との間に同軸に嵌められ、前記弾性体４２３は止め体４２２と押え体４１５の他端の端面との間に挟まれる。   The positioning portion 42 includes a fitting body 421, a ring-shaped stopper 422, and at least one elastic body 423, and the fitting body 421 is fitted coaxially to each bush 413 and the presser body 415, and has one end. It extends to cover one end surface of the bush 413, the stopper 422 is fitted coaxially between the second shaft 30 and the other end of the fitting body 421, and the elastic body 423 includes the stopper body 422 and the presser body 415. It is sandwiched between the end face of the other end.

上記構成により、図９に示すように、伝動軸のトルク制御機構１０が外部の動力に駆動されて（図４に示す従来のツインハンマー式駆動機構）、第一軸が第一転向方向に沿って回転するときに、各係り玉４１２の玉体の一部が対応の窪み４１１に係られ、各係り玉４１２の玉体の他部が第一転向止め面４１４１に係られ、そうすると、各係り玉４１２が第二軸３０と各ブッシュ４１３と押え体４１５との間に安定に係られ、これにより、第一軸２０の回転動力を制御組４０を経由して第二軸３０に伝達することができ、第一軸２０と第二軸３０とは第一回転方向へ同期に回転することになる。   9, the transmission shaft torque control mechanism 10 is driven by external power (the conventional twin hammer type drive mechanism shown in FIG. 4), and the first shaft is along the first turning direction. Part of the ball of each engagement ball 412 is engaged with the corresponding recess 411, and the other part of the ball of each engagement ball 412 is engaged with the first turning stop surface 4141. The ball 412 is stably engaged between the second shaft 30, each bush 413, and the presser body 415, thereby transmitting the rotational power of the first shaft 20 to the second shaft 30 via the control set 40. The first shaft 20 and the second shaft 30 rotate in the first rotation direction in synchronization.

また、図１０と図１１に示すように、外部の動力が第一軸２０を第二回転方向に沿って回転させるときには、ブッシュ４１４が駆動されて第一転向止め面４１４１が対応の係り玉４１２から離脱して、第二転向止め面４１４２が前記係り玉４１２に当接し、このとき、各係り玉４１２が定位部４２に圧制されて弾性的に定位し、したがって、各係り玉４１２がブッシュ４１４と対応の窪み４１１との間に介在し、これにより、第二回転方向へ回転している第一軸２０の動力を第二軸３０に伝達することができ、第一軸２０と第二軸３０とは第二回転方向へ同期に回転することになる。   As shown in FIGS. 10 and 11, when external power rotates the first shaft 20 along the second rotation direction, the bush 414 is driven and the first turning stop surface 4141 is associated with the corresponding engagement ball 412. The second turning stop surface 4142 comes into contact with the engaging ball 412, and at this time, each engaging ball 412 is pressed by the positioning portion 42 and elastically positioned, and therefore each engaging ball 412 is bushed 414. Between the first shaft 20 and the second shaft 30, whereby the power of the first shaft 20 rotating in the second rotation direction can be transmitted to the second shaft 30. 30 rotates synchronously in the second rotation direction.

また、図１２と図１３を参照する。第二回転方向へ回転している軸２０と軸３０は、外部動力のトルクが弾性体４２３に耐えられる限度を超える場合には、押え体４１５が係り玉４１２を圧制する状態が変更され、すなわち、各係り玉４１２は脱着窪み１１１１に沿って軸２０と軸３０の軸方向と垂直する方向へ移動し、収容空間Ｓ内に至り、且つ各係り玉４１２の移動の過程中に押え体４１５が横側へ押えられ、各係り玉４１２が対応の窪み４１１から完全に離脱するまで収容空間Ｓの内径が拡大され、このとき、第一軸２０が第二回転方向へ回転し、第二軸３０を駆動することができない。   Reference is also made to FIGS. In the shaft 20 and the shaft 30 rotating in the second rotation direction, when the torque of the external power exceeds the limit that the elastic body 423 can withstand, the state in which the presser body 415 presses the engagement ball 412 is changed, that is, Each engagement ball 412 moves in a direction perpendicular to the axial direction of the shaft 20 and the shaft 30 along the attachment / detachment recess 1111, reaches the accommodation space S, and the presser body 415 is moved during the process of movement of each engagement ball 412. The inner diameter of the accommodation space S is expanded until the engaging balls 412 are completely separated from the corresponding recesses 411, and at this time, the first shaft 20 rotates in the second rotation direction, and the second shaft 30 Can not drive.

上記の説明から明らかなように、前記伝動軸のトルク制御機構１０は第一回転方向と第二回転方向へのトルク制御効果が異なり、具体的に説明すると、第一回転方向へ回転しているときに、各係り玉４１２が定位部４２によって定位する構造が必要ないので、第一軸２０からの動力は第二軸３０へ完全に伝達され、この構成はエアー駆動工具と電気駆動工具との逆転によりねじをねじ出す工程である。   As is clear from the above description, the torque control mechanism 10 of the transmission shaft has different torque control effects in the first rotation direction and the second rotation direction, and specifically, rotates in the first rotation direction. In some cases, there is no need for a structure in which each engagement ball 412 is localized by the localization portion 42, so that the power from the first shaft 20 is completely transmitted to the second shaft 30. This is a step of unscrewing the screw by reverse rotation.

なお、前記伝動軸のトルク制御機構１０が第二回転方向へ回転しているときに、印加されるトルクが大きすぎる場合には、各係り玉４１２が移動されて第一軸２０と第二軸３０との間の動力の伝達が中断し、そうすると、大きすぎるトルクが第二軸３０から外部へ出力することを回避でき、この構成はエアー駆動工具と電気駆動工具との正転によりねじをねじ込む工程であり、このようなトルク制御効果を有するものによれば、過大なトルクによる組付部品の破壊を防止することができ、且つ出力トルクを一定範囲内に維持するので、加工品質を確保することもできる。   When the torque control mechanism 10 of the transmission shaft is rotating in the second rotational direction, if the applied torque is too large, each engaging ball 412 is moved to move the first shaft 20 and the second shaft. The transmission of power to and from 30 is interrupted, so that excessive torque can be prevented from being output from the second shaft 30 to the outside, and this configuration is screwed by forward rotation of the air driven tool and the electric driven tool. According to the process that has such a torque control effect, it is possible to prevent the assembly parts from being destroyed by excessive torque, and to maintain the output torque within a certain range, thus ensuring the machining quality. You can also.

また、出願者が特に説明したいことは、前記伝動軸のトルク制御機構１０において、定位部４２の弾力は各円盤形状のパッキンから得るので、耐えられるトルク値を調整したい場合には、前記パッキンの厚さを変更してもいいし、止め体４２２と押え体４１５との間の距離を変更することにより前記パッキンの圧縮度を変更してもいい。   In addition, the applicant particularly wants to explain that in the torque control mechanism 10 for the transmission shaft, the elasticity of the localization portion 42 is obtained from each disk-shaped packing. The thickness may be changed, or the compression degree of the packing may be changed by changing the distance between the stopper body 422 and the presser body 415.

従来のものの係合位置を示す断面図である。It is sectional drawing which shows the engagement position of the conventional one. 従来のものの分離位置を示す断面図である。It is sectional drawing which shows the separation position of the conventional one. 本考案の一実施例による伝動軸用トルク制御機構の分解斜視図である。1 is an exploded perspective view of a transmission shaft torque control mechanism according to an embodiment of the present invention; FIG. 本考案の一実施例による伝動軸用トルク制御機構の組合状態を示す斜視図である。It is a perspective view which shows the combined state of the torque control mechanism for transmission shafts by one Example of this invention. 図４をＡ−Ａ線で切断した断面図である。It is sectional drawing which cut | disconnected FIG. 4 by the AA line. 図４をＢ−Ｂ線で切断した断面図である。It is sectional drawing which cut | disconnected FIG. 4 by the BB line. 図４をＣ−Ｃ線で切断した断面図である。It is sectional drawing which cut | disconnected FIG. 4 by the CC line. 本考案の一実施例による伝動軸用トルク制御機構の第一転向方向へ作動するときの各軸の軸方向と垂直する方向から見た断面図である。It is sectional drawing seen from the direction perpendicular | vertical to the axial direction of each axis | shaft when operating in the 1st turning direction of the torque control mechanism for transmission shafts by one Example of this invention. 本考案の一実施例による伝動軸用トルク制御機構の第一転向方向へ作動するときの各軸の軸方向から見た断面図である。It is sectional drawing seen from the axial direction of each axis | shaft when operating in the 1st turning direction of the torque control mechanism for transmission shafts by one Example of this invention. 本考案の一実施例による伝動軸用トルク制御機構の第二転向方向へ作動するときの各軸の軸方向と垂直する方向から見た断面図である。It is sectional drawing seen from the direction perpendicular | vertical to the axial direction of each axis | shaft when act | operating to the 2nd turning direction of the torque control mechanism for transmission shafts by one Example of this invention. 本考案の一実施例による伝動軸用トルク制御機構の第二転向方向へ作動するときの各軸の軸方向から見た断面図である。It is sectional drawing seen from the axial direction of each axis | shaft when operating in the 2nd turning direction of the torque control mechanism for transmission shafts by one Example of this invention. 本考案の一実施例による伝動軸用トルク制御機構の第二転向方向へ作動するときの各軸の軸方向と垂直する方向から見た断面図である。It is sectional drawing seen from the direction perpendicular | vertical to the axial direction of each axis | shaft when act | operating to the 2nd turning direction of the torque control mechanism for transmission shafts by one Example of this invention. 本考案の一実施例による伝動軸用トルク制御機構の第二転向方向へ作動するときの各軸の軸方向から見た断面図である。It is sectional drawing seen from the axial direction of each axis | shaft when operating in the 2nd turning direction of the torque control mechanism for transmission shafts by one Example of this invention.

符号の説明Explanation of symbols

１０ 伝動軸用トルク制御機構、２０ 第一軸、２１ 枢着孔、３０ 第二軸、３１ 第二軸軸端、４０ 制御組、４１ クラッチ部、４２ 定位部、４１１ 窪み、４１２ 係り玉、４１３ ブッシュ、４１４ 欠け口、４１５ 押え体、４１６ 押え面、４２１ 嵌め体、４２２ 止め体、４２３ 弾性体、４１１１ 脱着窪み、４１４１ 第一転向止め面、４１４２ 第二転向止め面、Ｓ 収容空間   10 Transmission shaft torque control mechanism, 20 First shaft, 21 Pivoting hole, 30 Second shaft, 31 Second shaft shaft end, 40 Control group, 41 Clutch portion, 42 Localization portion, 411 Recess, 412 Engagement ball, 413 Bush, 414 Chipper, 415 Presser, 416 Presser surface, 421 Fitting body, 422 Stopper, 423 Elastic body, 4111 Desorption recess, 4141 First turning stop surface, 4142 Second turning stop surface, S receiving space

Claims (10)

第一軸と、
前記第一軸と同軸で隣接し、前記第一軸と異なる方向又は同じ方向へ回転可能な第二軸と、
前記第一軸と第二軸との枢着箇所の外周に位置し、クラッチ部と、前記クラッチ部を係合位置に弾性的に保持する定位部とから構成され、係合位置と分離位置との間に切替可能であり、係合位置に位置する場合には、前記クラッチ部により第一軸と第二軸とが互いに係って結合して一緒に回転し、分離位置に位置する場合には、第一軸と第二軸とが異なる方向又は同じ方向へ回転可能になる制御組とを含む伝動軸用トルク制御機構において、
前記クラッチ部には更に予定深さを有する円弧形状の窪みが設けられ、前記窪みは前記第二軸の一端部の周面に設けられ、係り玉の玉体の一部が前記窪みに係られ、収容空間は内径が変化可能であり、前記第一軸の一端部に設けられて各窪みとそれぞれ連通し、係り玉の玉体の残り部を収容し、内径を拡大して複数の前記係り玉の外周の直径と少なくとも同一であることを特徴とする伝動軸用トルク制御機構。 The first axis,
A second axis coaxially adjacent to the first axis and rotatable in a different direction or the same direction as the first axis;
It is located on the outer periphery of the pivot point of the first shaft and the second shaft, and is composed of a clutch portion and a positioning portion that elastically holds the clutch portion in the engagement position, and includes an engagement position and a separation position. The first shaft and the second shaft are engaged with each other by the clutch portion and rotated together and located at the separation position. Is a transmission shaft torque control mechanism including a control set in which the first shaft and the second shaft can rotate in different directions or in the same direction.
The clutch portion is further provided with an arc-shaped recess having a predetermined depth, the recess is provided on a peripheral surface of one end of the second shaft, and a part of the ball of the engagement ball is engaged with the recess. The accommodation space has a variable inner diameter, and is provided at one end of the first shaft and communicates with each of the recesses, accommodates the rest of the ball of the engagement ball, expands the inner diameter, and includes a plurality of the engagements. A torque control mechanism for a transmission shaft, characterized in that it is at least the same as the diameter of the outer periphery of the ball. 前記クラッチ部は、リング形状のブッシュと、リング形状の押え体と、テーパ形状の押え面とを有し、前記ブッシュは一端が前記第一軸の一端部と同軸で連接し、他端が前記各窪みの開口端に対応し、前記押え体は同軸で摺動可能に第二軸に嵌められ、前記押え面は前記押え体の一端面に設けられ、前記ブッシュの他端の端面と対向し、前記ブッシュとの間に収容空間が形成されることを特徴とする請求項１に記載の伝動軸用トルク制御機構。   The clutch portion includes a ring-shaped bush, a ring-shaped pressing body, and a tapered pressing surface, and the bush has one end connected coaxially to one end of the first shaft and the other end Corresponding to the opening end of each recess, the presser body is fitted on the second shaft so as to be slidable coaxially, and the presser surface is provided on one end surface of the presser body and faces the end surface of the other end of the bush. The transmission shaft torque control mechanism according to claim 1, wherein an accommodation space is formed between the bush and the bush. 前記クラッチ部は、第一転向止め面と第二転向止め面とを有し、前記第一転向止め面と第二転向止め面とは収容空間に位置し、第一軸と第二軸との回転方向の両側にそれぞれ位置することを特徴とする請求項２に記載の伝動軸用トルク制御機構。   The clutch portion has a first turning stop surface and a second turning prevention surface, and the first turning prevention surface and the second turning prevention surface are located in an accommodation space, and are formed of a first shaft and a second shaft. The transmission shaft torque control mechanism according to claim 2, wherein the transmission shaft torque control mechanism is located on both sides of the rotation direction. 前記第一転向止め面の円弧面の曲率は、対応する係り玉の球面の曲率と同様であることを特徴とする請求項３に記載の伝動軸用トルク制御機構。   4. The torque control mechanism for a transmission shaft according to claim 3, wherein the curvature of the arc surface of the first turning stop surface is the same as the curvature of the spherical surface of the corresponding engaging ball. 5. 前記第二転向止め面の円弧面の曲率は、対応する係り玉の球面の曲率よりも小さいことを特徴とする請求項３に記載の伝動軸用トルク制御機構。   4. The torque control mechanism for a transmission shaft according to claim 3, wherein a curvature of the arc surface of the second turning stop surface is smaller than a curvature of a spherical surface of the corresponding engaging ball. 5. 前記各窪みは、第一転向止め面と同じ方向にある穴壁面に対応し、壁面の曲率は係り玉の球面の曲率よりも小さいことを特徴とする請求項３に記載の伝動軸用トルク制御機構。   4. The torque control for a transmission shaft according to claim 3, wherein each of the recesses corresponds to a hole wall surface in the same direction as the first turning stop surface, and the curvature of the wall surface is smaller than the curvature of the spherical surface of the engaging ball. mechanism. 前記定位部は、嵌め体と、リング形状の止め体と、少なくとも一つの弾性体とを有し、前記嵌め体は各ブッシュと押え体とに同軸で嵌められ、一端が延長して前記ブッシュの一端面を覆い、前記止め体は第二軸と嵌め体の他端との間に同軸で嵌められ、前記弾性体は止め体と押え体の他端の端面との間に挟まれることを特徴とする請求項２に記載の伝動軸用トルク制御機構。   The stereotaxic portion includes a fitting body, a ring-shaped stopper, and at least one elastic body, and the fitting body is fitted coaxially to each bush and the holding body, and one end extends to extend the bushing. One end face is covered, the stopper is fitted coaxially between the second shaft and the other end of the fitting body, and the elastic body is sandwiched between the stopper body and the other end face of the pressing body. The torque control mechanism for a transmission shaft according to claim 2. 前記弾性体は、円盤形状のパッキンであることを特徴とする請求項７に記載の伝動軸用トルク制御機構。   The transmission shaft torque control mechanism according to claim 7, wherein the elastic body is a disk-shaped packing. 前記止め体と嵌め体とは、螺着方式により結合することを特徴とする請求項７に記載の伝動軸用トルク制御機構。   The transmission shaft torque control mechanism according to claim 7, wherein the stopper body and the fitting body are coupled by a screwing method. 前記各窪みの表面の曲率は、各窪みに収容される係り玉の球面の曲率と同様であることを特徴とする請求項１に記載の伝動軸用トルク制御機構。   The torque control mechanism for a transmission shaft according to claim 1, wherein the curvature of the surface of each recess is the same as the curvature of the spherical surface of the engaging ball accommodated in each recess.
JP2005008694U 2005-10-20 2005-10-20 Torque control mechanism for transmission shaft Expired - Fee Related JP3117802U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047249A (en) * 2010-08-26 2012-03-08 Tok Bearing Co Ltd Torque limiter
JP2021024073A (en) * 2019-07-31 2021-02-22 筌誠機械股▲分▼有限公司 Buffer gear mechanism for power tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047249A (en) * 2010-08-26 2012-03-08 Tok Bearing Co Ltd Torque limiter
JP2021024073A (en) * 2019-07-31 2021-02-22 筌誠機械股▲分▼有限公司 Buffer gear mechanism for power tool

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