JP2895509B2 - Linear clutch - Google Patents
Linear clutchInfo
- Publication number
- JP2895509B2 JP2895509B2 JP13435589A JP13435589A JP2895509B2 JP 2895509 B2 JP2895509 B2 JP 2895509B2 JP 13435589 A JP13435589 A JP 13435589A JP 13435589 A JP13435589 A JP 13435589A JP 2895509 B2 JP2895509 B2 JP 2895509B2
- Authority
- JP
- Japan
- Prior art keywords
- output shaft
- input shaft
- engaging
- axial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、直線的な運動の伝達、遮断を行なう場合
等に用いるリニアクラッチに関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear clutch used for transmitting and interrupting linear motion.
一般に、回転トルクの伝達、遮断を行なうクラッチに
は多くのものが存在するが、直線運動の伝達、遮断を行
なうようにしたリニアクラッチは未だ存在しない。In general, there are many clutches that transmit and disconnect rotational torque, but there is no linear clutch that transmits and disconnects linear motion.
しかし、実際の機械、装置においては、駆動軸の軸方
向の直線運動をこれと同軸に配置した被駆動軸に伝え、
被駆動軸からの直線運動は遮断して駆動軸に伝達されな
いようにななければならない場合が生じる。However, in actual machines and devices, the linear motion of the drive shaft in the axial direction is transmitted to a driven shaft arranged coaxially with the drive shaft.
In some cases, the linear motion from the driven shaft must be cut off so as not to be transmitted to the drive shaft.
上記のような場合、従来は、回転方向クラッチの作動
方向を、ロッドやカムを用いて直線運動に変換して用い
るようにしており、これでは構造が複雑になると同時
に、装置全体が大型化するという問題が生じる。In the above case, conventionally, the operating direction of the rotational direction clutch is converted into a linear motion using a rod or a cam, and this is used, which complicates the structure and increases the size of the entire device. The problem arises.
この発明は上記の点に鑑み、直線運動の伝達、遮断を
行なうことができるようにした新規なリニアクラッチを
提供することを技術的課題としている。SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a novel linear clutch capable of transmitting and interrupting linear motion.
上記の課題を解決するために、第１の発明において
は、外輪の軸心上に配置された出力軸と、その出力軸と
同軸上に配置された入力軸のそれぞれを軸方向に移動自
在に支持し、この出力軸と入力軸とを連結し、その連結
部に軸方向すきまを設け、上記出力軸と入力軸との間
に、その両軸を上記軸方向すきまの中立位置に保持し、
設定弾力を越えた軸力が付与されたとき軸方向すきまが
無くなるまで弾性変形する軸力設定弾性部材を設け、前
記外輪の内径面には軸心に平行するカム面を設け、出力
軸の外径面には上記カム面との間で軸方向の両端部が狭
い楔形空間を形成する係合面を形成し、前記入力軸には
カム面と係合面間に組込まれる保持器を設け、その保持
器には、楔形空間と対向する位置にポケットを形成し、
このポケット内に一対の係合子と、その係合子を相反す
る方向に押圧してポケットの軸方向で対向する端面に係
合子を押し付ける弾性部材を組込み、前記出力軸が軸方
向すきまの中立位置に保持される状態において、係合子
は前記係合面に対して非係合状態に保持され、出力軸が
入力軸に対して移動したとき、係合子がカム面および係
合面のそれぞれに係合するようにした構成を採用したの
である。In order to solve the above problems, in the first invention, each of an output shaft disposed on the axis of the outer ring and an input shaft disposed coaxially with the output shaft is movable in the axial direction. Supporting, connecting the output shaft and the input shaft, providing an axial clearance in the connection portion, between the output shaft and the input shaft, holding both shafts at the neutral position of the axial clearance,
When an axial force exceeding the set elasticity is applied, an axial force setting elastic member that elastically deforms until there is no clearance in the axial direction is provided, a cam surface parallel to the axis is provided on the inner surface of the outer ring, and an outer surface of the output shaft is provided. Both ends in the axial direction form a narrow wedge-shaped space between the radial surface and the cam surface, and the input shaft is provided with a retainer incorporated between the cam surface and the engaging surface, In the retainer, a pocket is formed at a position facing the wedge-shaped space,
A pair of engaging elements and an elastic member that presses the engaging elements against opposite end faces in the axial direction of the pocket by pressing the engaging elements in opposite directions are incorporated in the pocket, and the output shaft is at a neutral position in the axial clearance. In the held state, the engagement element is held in a non-engagement state with respect to the engagement surface, and when the output shaft moves with respect to the input shaft, the engagement element engages with each of the cam surface and the engagement surface. That is, a configuration was adopted.
また、第２の発明においては、外輪の軸心上に配置さ
れた出力軸と、その出力軸と同軸上に配置された入力軸
のそれぞれを軸方向に移動自在に支持し、この出力軸と
入力軸とを連結し、その連結部に軸方向すきまを設け、
上記出力軸と入力軸とを上記軸方向すきまの中立位置に
保持し、設定弾力を越えた軸力が付与されたとき軸方向
すきまが無くなるまで弾性変形する軸力設定弾性部材で
入力軸と出力軸とを連結し、前記外輪の内径面には軸心
に平行するカム面を設け、出力軸の外径面には上記カム
面との間で軸方向の両端部が狭い楔形空間を形成する係
合面を形成し、前記入力軸にはカム面と係合面間に組込
まれる保持器を設け、その保持器には、楔形空間と対向
する位置にポケットを形成し、このポケット内に一対の
係合子と、その係合子を相反する方向に押圧して楔形空
間の狭小部に係合子を噛み込ませる弾性部材とを組込
み、上記係合子と前記ポケットの軸方向の端面間に形成
されるポケットすきまを前記軸方向すきまより小さくし
た構成を採用したのである。In the second invention, each of an output shaft disposed on the axis of the outer ring and an input shaft disposed coaxially with the output shaft is movably supported in the axial direction. Connect the input shaft and provide an axial clearance at the connection,
The output shaft and the input shaft are held at the neutral position of the axial clearance, and when an axial force exceeding the set elasticity is applied, the input shaft and the output shaft are elastically deformed until the axial clearance disappears. A cam surface parallel to the axis is provided on the inner diameter surface of the outer ring, and a wedge-shaped space is formed between the cam surface and the outer diameter surface of the output shaft. An engagement surface is formed, a retainer is provided on the input shaft between the cam surface and the engagement surface, and a pocket is formed in the retainer at a position facing the wedge-shaped space, and a pair of pockets are formed in the pocket. And an elastic member that presses the engaging element in the opposite direction to bite the engaging element into the narrow portion of the wedge-shaped space, and is formed between the engaging element and the axial end face of the pocket. The pocket clearance is smaller than the axial clearance. A.
さらに、第３の発明においては、外輪の軸心上に配置
された出力軸と、その出力軸と同軸上に配置された入力
軸のそれぞれを軸方向に移動自在に支持し、この出力軸
と入力軸とを連結し、その連結部に軸方向すきまを設
け、前記外輪の内径側に円筒形のカム面を設け、出力軸
の外径面には上記カム面との間で軸方向の両端が狭い楔
形空間を形成する係合面を形成し、その係合面とカム面
の間に組込まれた保持器を入力軸に連結し、この保持器
には、楔形空間と対向する位置にポケットを設け、その
ポケット内に一対の係合子と、その係合子を相反する方
向に押圧して楔形空間の狭小部に係合子を噛み込ませる
弾性部材とを組込み、その係合子とポケットの端面に形
成されるポケットすきまを前記軸方向すきまより小さく
した構成を採用したのである。Furthermore, in the third invention, each of an output shaft disposed on the axis of the outer ring and an input shaft disposed coaxially with the output shaft is movably supported in the axial direction. An input shaft is connected, an axial clearance is provided at the connection portion, a cylindrical cam surface is provided on the inner diameter side of the outer ring, and an outer diameter surface of the output shaft is provided at both ends in the axial direction with the cam surface. Form an engagement surface forming a narrow wedge-shaped space, and connect a retainer incorporated between the engagement surface and the cam surface to the input shaft, wherein the retainer has a pocket at a position facing the wedge-shaped space. Is provided in the pocket, and a pair of engaging elements, and an elastic member that presses the engaging elements in opposite directions to bite the engaging elements into the narrow portion of the wedge-shaped space are incorporated. A configuration in which the formed pocket clearance is smaller than the axial clearance is adopted. A.
第１の発明において、外輪を固定した使用状態では、
入力軸を軸方向に直線運をさせると、その軸力が軸力設
定弾性部材の設定ばね力より小さい場合、入力軸の直線
運動は、設定弾性部材を介して出力軸に伝達され、出力
軸が軸方向に移動する。In the first invention, in a use state in which the outer ring is fixed,
When the input shaft is moved linearly in the axial direction, if the axial force is smaller than the set spring force of the axial force setting elastic member, the linear motion of the input shaft is transmitted to the output shaft via the setting elastic member, and the output shaft is Moves in the axial direction.
入力軸の軸力が軸力設定弾性部材の設定ばね力を越え
ると、軸方向すきまが無くなるまで入力軸が出力軸に対
して移動して両軸が軸方向に係合する。その係合によっ
て、入力軸の直線運動が出力軸に伝達される。ここで、
入力軸が軸方向すきまの範囲内において出力軸に対して
相対移動するとき、一対の係合子は保持器と共に移動
し、入力軸の移動方向前側の係合子はカム面および係合
面のそれぞれに接触する。そして、入力軸と出力軸とが
共に移動するとき、その移動方向前側の係合子はカム面
に沿って移動し、入力軸と出力軸の両軸の移動を阻止す
ることはない。When the axial force of the input shaft exceeds the set spring force of the axial force setting elastic member, the input shaft moves with respect to the output shaft until there is no clearance in the axial direction, and both shafts are engaged in the axial direction. The engagement causes the linear motion of the input shaft to be transmitted to the output shaft. here,
When the input shaft moves relative to the output shaft within the axial clearance, the pair of engaging members move together with the retainer, and the engaging members on the front side in the moving direction of the input shaft correspond to the cam surface and the engaging surface, respectively. Contact. When the input shaft and the output shaft move together, the engaging element on the front side in the movement direction moves along the cam surface, and does not prevent the movement of both the input shaft and the output shaft.
上記と逆に、出力軸が直線運動すると、その軸力が軸
力設定弾性部材の設定ばね力より小さい場合、軸力設定
弾性部材を介して入力軸に伝達され、設定ばね力より軸
力が大きくなると、係合子がカム面および係合面に係合
し、その係合によって出力軸は停止する。このため、出
力軸から入力軸に直線運動が伝達されるのを防止するこ
とができる。Contrary to the above, when the output shaft moves linearly, if the axial force is smaller than the set spring force of the axial force setting elastic member, it is transmitted to the input shaft via the axial force setting elastic member, and the axial force is set from the set spring force. When it becomes larger, the engagement element engages with the cam surface and the engagement surface, and the engagement stops the output shaft. Therefore, it is possible to prevent the linear motion from being transmitted from the output shaft to the input shaft.
第２の発明においても上記同様に、入力軸の直線運動
を出力軸に伝達することができると共に、出力軸から入
力軸に直線運動が伝達されるのを防止することができ
る。Also in the second invention, as described above, the linear motion of the input shaft can be transmitted to the output shaft, and the linear motion can be prevented from being transmitted from the output shaft to the input shaft.
第３の発明においては、入力軸が軸方向に移動する
と、軸力の大きさに関係なく軸方向すきまが無くなるま
で入力軸が軸方向に移動し、入力軸と出力軸が係合する
状態において、入力軸と共に出力軸が軸方向に移動す
る。In the third aspect, when the input shaft moves in the axial direction, the input shaft moves in the axial direction until the clearance in the axial direction disappears regardless of the magnitude of the axial force, and the input shaft and the output shaft are engaged. The output shaft moves in the axial direction together with the input shaft.
また、出力軸が直線運動すると、係合子がカム面およ
び係合面に係合し、その係合によって出力軸が停止する
ため、入力軸に出力軸の直線運動が伝達されるのを防止
することができる。Further, when the output shaft moves linearly, the engaging element engages with the cam surface and the engaging surface, and the engagement stops the output shaft, thereby preventing the linear motion of the output shaft from being transmitted to the input shaft. be able to.
以下、この発明の実施例を添付図面に基づいて説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図および第２図は、この発明に係るリニアクラッ
チの第１の実施例を示す。1 and 2 show a first embodiment of a linear clutch according to the present invention.
図示のように、外輪１の内径面に沿って一対の軸受
２、２がスライド自在に組込まれ、その一方の軸受２に
よって出力軸３が支持されている。また、他方の軸受２
によって入力軸４が支持され、その入力軸４の端部に設
けた一対の板状の保持器５が外輪１と出力軸３との間に
組込まれている。As shown, a pair of bearings 2 and 2 are slidably assembled along the inner diameter surface of the outer ring 1, and the output shaft 3 is supported by one of the bearings 2. Also, the other bearing 2
Thus, the input shaft 4 is supported, and a pair of plate-shaped retainers 5 provided at ends of the input shaft 4 are incorporated between the outer ring 1 and the output shaft 3.
上記保持器５によって両端部が支持されたピン６は出
力軸３に形成した径方向のピン挿入孔７に挿入され、そ
のピン挿入孔７とピン６との間に軸方向すきまＡが設け
られている。The pins 6 whose both ends are supported by the retainer 5 are inserted into radial pin insertion holes 7 formed in the output shaft 3, and an axial clearance A is provided between the pin insertion holes 7 and the pins 6. ing.
また、一対の保持器５には軸力設定弾性部材としての
板ばね８の両端部が支持され、その板ばね８の中途は出
力軸３の端部に設けたばね挿入溝９に挿通されている。
この板ばね８の弾力によって、ピン６は軸方向すきまＡ
の中立状態に保持されている。Further, both ends of a leaf spring 8 as an axial force setting elastic member are supported by the pair of retainers 5, and the middle of the leaf spring 8 is inserted into a spring insertion groove 9 provided at an end of the output shaft 3. .
Due to the resilience of the leaf spring 8, the pin 6 has an axial clearance A.
Is held in a neutral state.
前記外輪１の内径面には上記保持器５の外側に一対の
カムブロック10が取付けられ、そのカムブロック10の内
面は軸芯に平行なカム面11とされている。A pair of cam blocks 10 are mounted on the inner surface of the outer ring 1 outside the retainer 5, and the inner surfaces of the cam blocks 10 are cam surfaces 11 parallel to the axis.
一方、出力軸３の端部外周には、上記カム面11と対向
位置に両端部が内方傾斜する係合面12が設けられ、その
係合面12と上記カム面11との間に楔形空間13が形成され
ている。On the other hand, on the outer periphery of the end of the output shaft 3, an engagement surface 12 whose both ends are inclined inward is provided at a position facing the cam surface 11, and a wedge-shaped portion is provided between the engagement surface 12 and the cam surface 11. A space 13 is formed.
前記保持器５には、上記係合面12と対向位置にポケッ
ト14が形成され、そのポケット14内にローラから成る一
対の係合子15、16が組込まれている。この係合子15、16
は、その間に組込んだ弾性部材17により相反する方向に
押されてポケット14の軸方向で対向する端面に押し付け
られている。上記係合子15、16がポケット14の端面に当
接する状態において、係合子15、16はカム面11および係
合面11に非係合の状態とされている。A pocket 14 is formed in the retainer 5 at a position facing the engaging surface 12, and a pair of engaging elements 15 and 16 formed of rollers are incorporated in the pocket 14. These engaging elements 15, 16
Are pressed in opposite directions by an elastic member 17 incorporated therebetween, and are pressed against the end faces of the pockets 14 facing each other in the axial direction. In a state where the engaging members 15 and 16 abut on the end surfaces of the pockets 14, the engaging members 15 and 16 are in a state of being disengaged from the cam surface 11 and the engaging surface 11.
第１の実施例で示すリニアクラッチは上記の構造から
成り、次にその作用を説明する。The linear clutch shown in the first embodiment has the above structure, and its operation will be described next.
いま、外輪１を固定し、入力軸４を軸方向に押し込む
と、その軸力が軸力設定弾性部材８の設定ばね力より小
さい場合は、軸力設定弾性部材８の変形が小さく、入力
軸４の軸方向の移動を軸力設定弾性部材８を介して出力
軸３に伝達することができる。Now, when the outer ring 1 is fixed and the input shaft 4 is pushed in the axial direction, if the axial force is smaller than the set spring force of the axial force setting elastic member 8, the deformation of the axial force setting elastic member 8 is small and the input shaft 4 can be transmitted to the output shaft 3 via the axial force setting elastic member 8.
入力軸４の軸力が軸力設定弾性部材８の設定ばね力を
越えると、軸力設定弾性部材８が大きく変形してピン６
がピン孔７の内径面に係合し、その係合によって、入力
軸４の軸方向の移動が出力軸３に伝達され、軸受２と共
に軸方向に移動する。When the axial force of the input shaft 4 exceeds the set spring force of the axial force setting elastic member 8, the axial force setting elastic member 8 is greatly deformed and the pin 6
Engages with the inner diameter surface of the pin hole 7, whereby the axial movement of the input shaft 4 is transmitted to the output shaft 3, and moves with the bearing 2 in the axial direction.
ここで、ピン６がピン孔７の内径面に係合するまで入
力軸４が出力軸３に対して移動するとき、保持器５のポ
ケット14内に組込まれた一対の係合子15、16は軸方向に
移動し、その移動方向前側の係合子16はカム面11および
係合面12のそれぞれに接触する。そして、入力軸４と出
力軸３が共に移動すると、移動方向前側の係合子16はカ
ム面11に沿って移動し、入力軸４および出力軸３の両軸
の軸方向の移動を阻害することはない。Here, when the input shaft 4 moves with respect to the output shaft 3 until the pin 6 engages with the inner surface of the pin hole 7, the pair of engagement members 15 and 16 incorporated in the pocket 14 of the retainer 5 It moves in the axial direction, and the engaging element 16 on the front side in the moving direction contacts each of the cam surface 11 and the engaging surface 12. When the input shaft 4 and the output shaft 3 move together, the engaging element 16 on the front side in the moving direction moves along the cam surface 11 and hinders the movement of both the input shaft 4 and the output shaft 3 in the axial direction. There is no.
また、入力軸４を引き込んだ場合も上記と同様に出力
軸３が軸方向に移動する。Also, when the input shaft 4 is pulled in, the output shaft 3 moves in the axial direction in the same manner as described above.
したがって、入力軸４から出力軸３を動かす場合は、
軸力の大きさに拘わらず入力軸４と共に出力軸３を動か
すことができる。Therefore, when moving the output shaft 3 from the input shaft 4,
The output shaft 3 can be moved together with the input shaft 4 regardless of the magnitude of the axial force.
一方、出力軸３にキックバックが生じ、その出力軸３
が入力軸４に向けて移動されると、その出力軸３の軸力
が軸力設定弾性部材８の設定ばね力より小さい場合は、
出力軸３と共に入力軸４が軸方向に移動する。出力軸３
の軸力が上記設定ばね力より大きい場合は、出力軸３が
保持器５に対して軸方向に相対的に移動し、出力軸３の
移動方向後側の係合子16がカム面11および係合面12に係
合する。その係合によって出力軸３は停止し、出力軸３
と共に入力軸４が軸方向に移動するのが防止される。On the other hand, kickback occurs on the output shaft 3 and the output shaft 3
Is moved toward the input shaft 4, if the axial force of the output shaft 3 is smaller than the set spring force of the axial force setting elastic member 8,
The input shaft 4 moves in the axial direction together with the output shaft 3. Output shaft 3
If the axial force of the output shaft 3 is larger than the set spring force, the output shaft 3 moves relative to the retainer 5 in the axial direction, and the engaging member 16 on the rear side in the moving direction of the output shaft 3 Engage with mating surface 12. The output shaft 3 stops by the engagement, and the output shaft 3
At the same time, the input shaft 4 is prevented from moving in the axial direction.
以上は、外輪１を固定した使用であるが、リニアクラ
ッチの使用はこれに限定されない。例えば軸力設定弾性
部材８の変形量を検出するセンサーを設け、そのセンサ
ーおよび制御装置によって制御される駆動装置の作動に
より外輪１を出力軸３に向けて移動させるようにすれ
ば、入力軸４と外輪１の２つの軸力を出力軸３に伝達す
ることができ、動力倍力装置として使用することができ
る。The above is the use where the outer race 1 is fixed, but the use of the linear clutch is not limited to this. For example, if a sensor for detecting the amount of deformation of the axial force setting elastic member 8 is provided and the outer wheel 1 is moved toward the output shaft 3 by the operation of the sensor and the driving device controlled by the control device, the input shaft 4 , And the two axial forces of the outer ring 1 can be transmitted to the output shaft 3 and can be used as a power booster.
第３図および第４図は、この発明に係るリニアクラッ
チの第２の実施例を示す。この第２の実施例において
は、第１の実施例におけるローラから成る係合子15、16
に代えてくさびブロックから成る係合子25、26をポケッ
ト14内に組込むようにしており、他の構成および作用は
第１の実施例と同じであるため説明を省略する。FIG. 3 and FIG. 4 show a second embodiment of the linear clutch according to the present invention. In the second embodiment, the engaging members 15 and 16 composed of the rollers in the first embodiment are used.
Instead, the engaging members 25 and 26 formed of wedge blocks are incorporated in the pockets 14, and the other configuration and operation are the same as those of the first embodiment, and therefore the description thereof is omitted.
第５図および第６図は、この発明に係るリニアクラッ
チの第３の実施例を示す。この実施例においては、外輪
１の内径側に円筒形のカム面21を設け、一方出力軸３の
端部外周に軸方向の両端部を円錐形とした係合面22を形
成してある。そして、保持器５′は円筒形とし、その保
持器５′の周方向に複数のポケット14を設け、各ポケッ
ト14内にボールから成る一対の係合子35、36と弾性部材
17とを組込み、その弾性部材17の弾力により係合子35、
36を相反する方向に押して各係合子35、36をカム面21お
よび係合面22に係合させてある。その係合状態におい
て、係合子35、36とポケット14の端面間にポケットすき
まＢが形成され、そのポケットすきまＢはピン６とピン
挿入孔７間に形成された軸方向すきまＡより小さくなっ
ている。FIG. 5 and FIG. 6 show a third embodiment of the linear clutch according to the present invention. In this embodiment, a cylindrical cam surface 21 is provided on the inner diameter side of the outer ring 1, while an engagement surface 22 having both ends in the axial direction conical is formed on the outer periphery of the end of the output shaft 3. The retainer 5 'is formed in a cylindrical shape, and a plurality of pockets 14 are provided in a circumferential direction of the retainer 5'.
And the engaging element 35 by the elasticity of the elastic member 17.
The engaging members 35 and 36 are engaged with the cam surface 21 and the engaging surface 22 by pressing the engaging members 36 in opposite directions. In the engaged state, a pocket clearance B is formed between the engagement elements 35 and 36 and the end face of the pocket 14, and the pocket clearance B is smaller than the axial clearance A formed between the pin 6 and the pin insertion hole 7. I have.
また、入力軸４の端面に孔18を形成し、出力軸３の端
面に設けた突軸19を上記孔18に挿入して出力軸３の端部
を受け、第１の実施例で示す軸力設定弾性部材８を省略
してある。Further, a hole 18 is formed in the end face of the input shaft 4, and a protruding shaft 19 provided on the end face of the output shaft 3 is inserted into the hole 18 to receive the end of the output shaft 3. The force setting elastic member 8 is omitted.
他の構成は、第１の実施例と同じであるため、同一の
部品には同一符号を付して説明を省略する。The other configuration is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.
この第３の実施例においては、入力軸４の軸力の大き
さに関係なく、その入力軸４の直線運動を出力軸３に伝
えることができると共に、出力軸３の直線運動が入力軸
４に伝達されるのを防止することができる。In the third embodiment, the linear motion of the input shaft 4 can be transmitted to the output shaft 3 regardless of the magnitude of the axial force of the input shaft 4, and the linear motion of the output shaft 3 is Can be prevented from being transmitted to the
第７図はこの発明に係るリニアクラッチの第４の実施
例を示す。この第４の実施例においては、外輪１の内径
面に沿って摺動自在に設けられた一対の軸受２で筒状の
出力軸３の両端部を支持し、その出力軸３の内側に入力
軸４をスライド自在に挿入してある。FIG. 7 shows a fourth embodiment of the linear clutch according to the present invention. In this fourth embodiment, both ends of a cylindrical output shaft 3 are supported by a pair of bearings 2 slidably provided along the inner diameter surface of an outer ring 1, and an input is provided inside the output shaft 3. The shaft 4 is slidably inserted.
また、出力軸３にピン孔７を形成し、そのピン孔７に
軸方向すきまＡをもって挿入されたピン６で入力軸４と
保持器５′とを連結している。Further, a pin hole 7 is formed in the output shaft 3, and the input shaft 4 and the retainer 5 ′ are connected by a pin 6 inserted into the pin hole 7 with an axial clearance A.
他の構成は第３の実施例と同様であるため、同一部品
に同一符号を付して説明を省略する。Since other configurations are the same as those of the third embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.
この第４の実施例においては、軸受２で出力軸３の両
端部を支持し、その出力軸３で入力軸３を支持している
ため、入力軸４と出力軸３の軸方向の折れ曲がりがな
く、剛性の高いリニアクラッチを提供することができ
る。In the fourth embodiment, since both ends of the output shaft 3 are supported by the bearing 2 and the input shaft 3 is supported by the output shaft 3, the input shaft 4 and the output shaft 3 are bent in the axial direction. Therefore, a highly rigid linear clutch can be provided.
第８図および第９図は、この発明に係るリニアクラッ
チの第５の実施例を示す。この実施例においては、第３
の実施例で示すボールから成る係合子35、36に代えて、
クサビブロックから成る係合子45、46を用いており、他
の構成および作用は第３の実施例と同じであるため、同
一部品に同一符号を付して説明を省略する。FIG. 8 and FIG. 9 show a fifth embodiment of the linear clutch according to the present invention. In this embodiment, the third
Instead of the engaging elements 35 and 36 made of balls shown in the embodiment,
Since the engaging elements 45 and 46 composed of wedge blocks are used, and other configurations and operations are the same as those of the third embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.
なお、47は周方向に並ぶ係合子45、46の連結用ガータ
スプリングを示す。Reference numeral 47 denotes a garter spring for connecting the engaging members 45 and 46 arranged in the circumferential direction.
本発明は上記のように構成したので下記に示す効果を
奏する。Since the present invention is configured as described above, the following effects can be obtained.
第１の発明および第２の発明においては、入力軸の直
線運動を出力軸に伝達することができると共に、出力軸
からはその出力軸の軸力の大きさに応じて入力軸に伝え
たり、遮断したりすることができるリニアクラッチを可
能とすることができる。In the first invention and the second invention, the linear motion of the input shaft can be transmitted to the output shaft, and the output shaft can transmit the linear motion to the input shaft according to the magnitude of the axial force of the output shaft. A linear clutch that can be disengaged can be made possible.
第３の発明においては、入力軸から出力軸に直線運動
を伝達することができると共に、出力軸からは軸力の大
きさに関係なく入力軸に直線運動が伝達されるのを防止
することができるリニアクラッチを可能とすることがで
きる。In the third aspect, linear motion can be transmitted from the input shaft to the output shaft, and linear motion can be prevented from being transmitted from the output shaft to the input shaft regardless of the magnitude of the axial force. A possible linear clutch can be realized.
第１図は、この発明に係るリニアクラッチの第１の実施
例を示す縦断正面図、第２図は第１図のII−II線に沿っ
た断面図、第３図は同上リニアクラッチの第２の実施例
を示す縦断正面図、第４図は第３図のIV−IV線に沿った
断面図、第５図は同上リニアクラッチの第３の実施例を
示す縦断正面図、第６図は第５図のVI−VI線に沿った断
面図、第７図は同上リニアクラッチの第４の実施例を示
す縦断正面図、第８図は同上リニアクラッチの第５の実
施例を示す縦断正面図、第９図は第８図のIX−IX線に沿
った断面図である。 １……外輪、３……出力軸、４……入力軸、５、５′…
…保持器、６……ピン、７……ピン挿入孔、８……軸力
設定弾性部材、11、21……カム面、12、22……係合面、
13……楔形空間、14……ポケット、15、16、25、26、3
5、36、45、46……係合子、17……弾性部材。FIG. 1 is a longitudinal sectional front view showing a first embodiment of a linear clutch according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a vertical cross-sectional front view showing a third embodiment of the linear clutch, and FIG. FIG. 7 is a sectional view taken along the line VI-VI of FIG. 5, FIG. 7 is a longitudinal sectional front view showing a fourth embodiment of the above linear clutch, and FIG. 8 is a longitudinal section showing a fifth embodiment of the same linear clutch. FIG. 9 is a sectional view taken along the line IX-IX of FIG. 1 ... outer ring, 3 ... output shaft, 4 ... input shaft, 5, 5 '...
... Cage, 6 ... Pin, 7 ... Pin insertion hole, 8 ... Axial force setting elastic member, 11, 21 ... Cam surface, 12, 22 ... Engaging surface,
13 …… wedge-shaped space, 14 …… pocket, 15, 16, 25, 26, 3
5, 36, 45, 46 ... engaging element, 17 ... elastic member.
Claims (3)
出力軸と同軸上に配置された入力軸のそれぞれを軸方向
に移動自在に支持し、この出力軸と入力軸とを連結し、
その連結部に軸方向すきまを設け、上記出力軸と入力軸
との間に、その両軸を上記軸方向すきまの中立位置に保
持し、設定弾力を越えた軸力が付与されたとき軸方向す
きまが無くなるまで弾性変形する軸力設定弾性部材を設
け、前記外輪の内径面には軸心に平行するカム面を設
け、出力軸の外径面には上記カム面との間で軸方向の両
端部が狭い楔形空間を形成する係合面を形成し、前記入
力軸にはカム面と係合面間に組込まれる保持器を設け、
その保持器には、楔形空間と対向する位置にポケットを
形成し、このポケット内に一対の係合子と、その係合子
を相反する方向に押圧してポケットの軸方向で対向する
端面に係合子を押し付ける弾性部材を組込み、前記出力
軸が軸方向すきまの中立位置に保持される状態におい
て、係合子は前記係合面に対して非係合状態に保持さ
れ、出力軸が入力軸に対して移動したとき、係合子がカ
ム面および係合面のそれぞれに係合するようにしたリニ
アクラック。An output shaft arranged on the axis of an outer ring and an input shaft arranged coaxially with the output shaft are supported movably in the axial direction, and the output shaft and the input shaft are connected to each other. Concatenate,
An axial clearance is provided in the connecting portion, and between the output shaft and the input shaft, both shafts are held at the neutral position of the axial clearance, and when an axial force exceeding the set elasticity is applied, the axial direction is increased. An axial force setting elastic member that elastically deforms until there is no clearance is provided, a cam surface parallel to the axis is provided on the inner diameter surface of the outer ring, and an outer diameter surface of the output shaft is formed in an axial direction between the cam surface and the cam surface. Both ends form an engagement surface forming a narrow wedge-shaped space, and the input shaft is provided with a retainer incorporated between the cam surface and the engagement surface,
A pocket is formed in the retainer at a position facing the wedge-shaped space, and a pair of engaging elements are formed in the pocket, and the engaging elements are pressed in opposite directions to form an engaging element on an end face of the pocket that faces in the axial direction. In a state where the output shaft is held at the neutral position of the axial clearance, the engaging element is held in a non-engaged state with respect to the engaging surface, and the output shaft is moved with respect to the input shaft. A linear crack in which the engaging element engages with each of the cam surface and the engaging surface when moved.
出力軸と同軸上に配置された入力軸のそれぞれを軸方向
に移動自在に支持し、この出力軸と入力軸とを連結し、
その連結部に軸方向すきまを設け、上記出力軸と入力軸
とを上記軸方向すきまの中立位置に保持し、設定弾力を
越えた軸力が付与されたとき軸方向すきまが無くなるま
で弾性変形する軸力設定弾性部材で入力軸と出力軸とを
連結し、前記外輪の内径面には軸心に平行するカム面を
設け、出力軸の外径面には上記カム面との間で軸方向の
両端部が狭い楔形空間を形成する係合面を形成し、前記
入力軸にはカム面と係合面間に組込まれる保持器を設
け、その保持器には、楔形空間と対向する位置にポケッ
トを形成し、このポケット内に一対の係合子と、その係
合子を相反する方向に押圧して楔形空間の狭小部に係合
子を噛み込ませる弾性部材とを組込み、上記係合子と前
記ポケットの軸方向の端面間に形成されるポケットすき
まを前記軸方向すきまより小さくしたリニアクラッチ。2. An output shaft disposed on the axis of an outer ring and an input shaft disposed coaxially with the output shaft are supported movably in the axial direction, and the output shaft and the input shaft are connected to each other. Concatenate,
An axial clearance is provided at the connecting portion, the output shaft and the input shaft are held at a neutral position of the axial clearance, and when an axial force exceeding a set elasticity is applied, the shaft is elastically deformed until the axial clearance disappears. The input shaft and the output shaft are connected by an axial force setting elastic member, a cam surface parallel to the axis is provided on the inner diameter surface of the outer ring, and the outer diameter surface of the output shaft is axially interposed between the output shaft and the cam surface. Both ends of the shaft form an engaging surface forming a narrow wedge-shaped space, the input shaft is provided with a retainer incorporated between the cam surface and the engaging surface, and the retainer is provided at a position facing the wedge-shaped space. A pocket is formed, and a pair of engaging elements and an elastic member that presses the engaging elements in opposite directions to bite the engaging elements into a narrow portion of the wedge-shaped space are incorporated in the pocket, and the engaging element and the pocket are assembled. The pocket clearance formed between the axial end faces of the Smaller the linear clutch.
出力軸と同軸上に配置された入力軸のそれぞれを軸方向
に移動自在に支持し、この出力軸と入力軸とを連結し、
その連結部に軸方向すきまを設け、前記外輪の内径側に
円筒形のカム面を設け、出力軸の外径面には上記カム面
との間で軸方向の両端が狭い楔形空間を形成する係合面
を形成し、その係合面とカム面の間に組込まれた保持器
を入力軸に連結し、この保持器には、楔形空間と対向す
る位置にポケットを設け、そのポケット内に一対の係合
子と、その係合子を相反する方向に押圧して楔形空間の
狭小部に係合子を噛み込ませる弾性部材とを組込み、そ
の係合子とポケットの端面に形成されるポケットすきま
を前記軸方向すきまより小さくしたリニアクラッチ。3. An output shaft disposed on the axis of an outer ring and an input shaft disposed coaxially with the output shaft are supported movably in the axial direction, and the output shaft and the input shaft are connected to each other. Concatenate,
An axial clearance is provided in the connecting portion, a cylindrical cam surface is provided on the inner diameter side of the outer ring, and a wedge-shaped space is formed on the outer diameter surface of the output shaft between the cam surface and both ends in the axial direction. An engaging surface is formed, a retainer incorporated between the engaging surface and the cam surface is connected to the input shaft, and the retainer is provided with a pocket at a position facing the wedge-shaped space. A pair of engaging elements and an elastic member that presses the engaging elements in opposite directions to bite the engaging element into the narrow portion of the wedge-shaped space are incorporated, and the engaging element and the pocket clearance formed on the end face of the pocket are formed as described above. Linear clutch with smaller axial clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13435589A JP2895509B2 (en) | 1989-05-26 | 1989-05-26 | Linear clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13435589A JP2895509B2 (en) | 1989-05-26 | 1989-05-26 | Linear clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03354A JPH03354A (en) | 1991-01-07 |
| JP2895509B2 true JP2895509B2 (en) | 1999-05-24 |
Family
ID=15126431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13435589A Expired - Fee Related JP2895509B2 (en) | 1989-05-26 | 1989-05-26 | Linear clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2895509B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7443982B2 (en) | 2020-08-19 | 2024-03-06 | 株式会社アイシン | linear lock clutch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132712A (en) * | 2004-11-08 | 2006-05-25 | Ntn Corp | Linear clutch |
| JP4644494B2 (en) * | 2005-01-06 | 2011-03-02 | Ｎｔｎ株式会社 | Direct acting one-way clutch |
-
1989
- 1989-05-26 JP JP13435589A patent/JP2895509B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7443982B2 (en) | 2020-08-19 | 2024-03-06 | 株式会社アイシン | linear lock clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03354A (en) | 1991-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4668206A (en) | Torque limiting overload coupling | |
| US10670085B2 (en) | Automatic clutch device | |
| GB2076112A (en) | Slip couplings | |
| JPS63231010A (en) | Overload-protected torque transmission telescopic type shaft device | |
| KR101419803B1 (en) | Bearing unit and main spindle device of machine tool provided with bearing unit | |
| JP2008215559A (en) | Friction transmission gearbox unit | |
| JP2895509B2 (en) | Linear clutch | |
| JPS588830A (en) | Shaft coupling for transmitting torque | |
| JPS63145826A (en) | Pre-load bearing | |
| US3885658A (en) | System for mounting clutch release bearings | |
| EP3101297A1 (en) | Rotation transmission device | |
| GB2080489A (en) | A universal joint | |
| GB2134966A (en) | Double clamp | |
| JP2713601B2 (en) | clutch | |
| US4199964A (en) | Thrust transmission or thrust producing device | |
| WO2022211568A1 (en) | Device for assembling boot and sealing ring of constant velocity joint of vehicle | |
| US6530461B2 (en) | Clutch unit | |
| US3578119A (en) | Multidisc clutches | |
| CN205605685U (en) | Freewheel clutch and have this freewheel clutch's machine | |
| JP2713602B2 (en) | clutch | |
| JPS5852092B2 (en) | ITSUPOKURATSUCHI | |
| SU846872A1 (en) | Ball-type safety coupling | |
| US4273227A (en) | Torque-transmitting devices | |
| JP6786329B2 (en) | Reverse input cutoff device | |
| KR900014175A (en) | Friction clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20080305 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090305 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |