JPS5911217Y2 - One-way clutch in magnetic recording/playback equipment, etc. - Google Patents
One-way clutch in magnetic recording/playback equipment, etc.Info
- Publication number
- JPS5911217Y2 JPS5911217Y2 JP14246880U JP14246880U JPS5911217Y2 JP S5911217 Y2 JPS5911217 Y2 JP S5911217Y2 JP 14246880 U JP14246880 U JP 14246880U JP 14246880 U JP14246880 U JP 14246880U JP S5911217 Y2 JPS5911217 Y2 JP S5911217Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- spring
- way clutch
- magnetic recording
- axial direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Mechanical Operated Clutches (AREA)
Description
【考案の詳細な説明】
本考案は磁気磁音録画再生装置等において、一回転方向
にのみ回転力を伝達するようにした一方向クラッチに関
するもので゛ある。[Detailed Description of the Invention] The present invention relates to a one-way clutch that transmits rotational force only in one rotational direction in a magneto-magnetic recording/playback device or the like.
ビデオテープレコーダー等においては、製品の小型化の
要請により、各部品の設置空間が極めて限定される傾向
にあり、従来公知の自由回転クラッチのような一方向ク
ラッチは、クラッチ全体が大型になるし、また雑音等を
生じてビデオテープレコーダー等には適用できない。In video tape recorders and the like, due to the demand for smaller products, the installation space for each component tends to be extremely limited, and one-way clutches such as conventionally known free-rotation clutches require large clutches as a whole. , it also generates noise and cannot be applied to video tape recorders and the like.
本考案の目的は、非常に小型なものでも容易に製造する
ことができ、作動時においてはなるべく雑音が生ぜず、
しかも円滑に作動するような一方向クラッチを提供する
ことにある。The purpose of this invention is to be able to easily manufacture even very small products, to generate as little noise as possible during operation, and to
Moreover, it is an object of the present invention to provide a one-way clutch that operates smoothly.
以下図面に基いてその好適な実施例を説明すると、１は
軸７へ回転自在に遊嵌された第一の回転体、２は軸７に
固定された第二の回転体で、両回転体１，２はポリアセ
タールのような硬質の合或樹脂により製され、軸７には
低摩擦部材よりなるワツシャ−８と抜止輪９が取付けら
れていて、回転体１，２は軸方向の間隔が一定範囲以上
に拡大しないようになされている。The preferred embodiment will be described below based on the drawings. 1 is a first rotating body loosely fitted to the shaft 7 so as to be rotatable, 2 is a second rotating body fixed to the shaft 7, and both rotating bodies are 1 and 2 are made of hard synthetic resin such as polyacetal, a washer 8 made of a low-friction member and a retaining ring 9 are attached to the shaft 7, and the rotating bodies 1 and 2 are spaced apart in the axial direction. This is done to prevent it from expanding beyond a certain range.
前記両回転体１，２の間には、第二の回転体２とは自由
に回転しかつ軸方向には郵動し得る状態に中間回転体３
が設けられており、この中間回転体３と前記第一の回転
体１との対向面には、特に第４図〜第７図で例示するよ
うに、互に係合するラチェット部Ｃと同一回転方向へ互
に一定角度で傾斜した傾斜部ｂとを交互に有するかみ合
い部３１，１１がそれぞれ形威されている。Between the two rotating bodies 1 and 2, there is an intermediate rotating body 3 which can rotate freely and move in the axial direction with respect to the second rotating body 2.
are provided on the opposing surfaces of the intermediate rotating body 3 and the first rotating body 1, as illustrated in FIGS. Engaging portions 31 and 11 are formed, respectively, which alternately have inclined portions b inclined at a constant angle in the direction of rotation.
前記中間回転体３と第二の回転体２との間には、第二の
回転体２のボス部２２と係合しかつ軸方向には自由に遊
動する状態でばね受４が配設され、ばね受４の前記中間
回転体３との対向面にはフエルト等よりなる摩擦材５が
接着され、ばね受４と第二の回転体２の内底部との間に
介入せられたばね６により、中間回転体３は第一の回転
体１と前記かみ合い部１１．３１においてかみ合う状態
で圧接され、ばね受４は摩擦材５を介して中間回転体３
へ圧接されている。A spring bearing 4 is disposed between the intermediate rotating body 3 and the second rotating body 2 so as to engage with the boss portion 22 of the second rotating body 2 and freely move in the axial direction. A friction material 5 made of felt or the like is adhered to the surface of the spring receiver 4 facing the intermediate rotating body 3, and a spring 6 interposed between the spring receiver 4 and the inner bottom of the second rotating body 2 , the intermediate rotating body 3 is pressed into contact with the first rotating body 1 in an engaged state at the engaging portion 11.31, and the spring receiver 4 is connected to the intermediate rotating body 3 via the friction material 5.
is pressed against.
中間回転体３の外周部には他のかみ合い部３２が形或さ
れ、第二の回転体２には中間回転体３が近接した時のみ
前記かみ合い部３２とかみ合う位置にかみ合い部２１が
形或され、第二の回転体２には中間回転体３が前記かみ
合い部３１．１１の高さＨ以上に近接するのを阻止する
段部２１′が形或されている。Another meshing part 32 is formed on the outer periphery of the intermediate rotating body 3, and a meshing part 21 is formed on the second rotating body 2 at a position where it engages with the meshing part 32 only when the intermediate rotating body 3 approaches. A stepped portion 21' is formed on the second rotating body 2 to prevent the intermediate rotating body 3 from approaching the engaging portion 31.11 above a height H.
尚、１２は回転体１の外周へ刻設された歯、２３は回転
体２の外周へ刻設された歯である。Note that 12 is a tooth carved on the outer periphery of the rotating body 1, and 23 is a tooth carved on the outer periphery of the rotating body 2.
前記実施例のクラッチは、歯車伝動機構の途中に介設す
るもので、第一の回転体１と第二の回転体２はそれぞれ
図示しない他の歯車とかみ合っており、第一の回転体１
を主動側、第二の回転体２を従動側と仮定してその作用
を説明すれば、主動側である第一の回転体１が第２図の
状態において矢印ａ（平面時計方向）の方向へ回転する
と、中間回転体３はばね６の弾力と摩擦材５から受ける
摩擦荷重とによって、第一の回転体１の回転に直ちには
追随しないため、第８図第９図の状態で沖間回転体３と
第一の回転体１とのかみ合い部３１，１１における傾斜
部ｂ相互にすべりを生じ、中間回転体３はばね６の弾力
に抗して第二の回転体２の側へ近接し、第３図のように
中間回転体３のがみ合い部３２が第二の回転体２のかみ
合い部２１と係合し、第一の回転体１と第二の回転体２
は一体回転するに至る。The clutch of the above embodiment is interposed in the middle of a gear transmission mechanism, and the first rotating body 1 and the second rotating body 2 are each meshed with other gears (not shown), and the first rotating body 1
To explain the operation, assuming that is the driving side and the second rotating body 2 is the driven side, the first rotating body 1, which is the driving side, moves in the direction of arrow a (clockwise in the plane) in the state shown in Fig. 2. When the intermediate rotating body 3 rotates to , the intermediate rotating body 3 does not immediately follow the rotation of the first rotating body 1 due to the elasticity of the spring 6 and the friction load received from the friction material 5. The inclined portion b of the engaging portions 31 and 11 between the rotary body 3 and the first rotary body 1 slips against each other, and the intermediate rotary body 3 approaches the second rotary body 2 against the elasticity of the spring 6. As shown in FIG.
comes to rotate as a whole.
他方第３図の状態において、第一の回転体１が前記矢印
ａの反対方向に回転しはじめると、中間回転体３は第一
の回転体１によって第二の回転体２の側へ押されること
がなくなるので、ばね６の弾力により第一の回転体１の
側へ押され、第二の回転体２のかみ合い部２１と中間回
転体３のがみ合い部３２が外れ、第２図の状態に復して
第一の回転体１の回転は第二の回転体２には伝わらなく
なる。On the other hand, in the state shown in FIG. 3, when the first rotating body 1 begins to rotate in the opposite direction of the arrow a, the intermediate rotating body 3 is pushed by the first rotating body 1 toward the second rotating body 2. Therefore, the elasticity of the spring 6 pushes it toward the first rotating body 1, and the engaging part 21 of the second rotating body 2 and the engaging part 32 of the intermediate rotating body 3 are disengaged, as shown in FIG. When the state is restored, the rotation of the first rotating body 1 is no longer transmitted to the second rotating body 2.
本考案において、回転体１，２は同軸心状で軸方向の間
隔が一定範囲以上に拡大しないよう規制されていれば十
分であるので、例えば第２図の状態において、第二の回
転体２を軸７へ回転自在に遊嵌させ、軸７に同図二点鎖
線で示すような止め輪９′を取付けても実施することが
できる。In the present invention, it is sufficient that the rotating bodies 1 and 2 are coaxial and the axial distance is regulated so as not to expand beyond a certain range.For example, in the state shown in FIG. It can also be implemented by loosely fitting it onto the shaft 7 so that it can freely rotate, and attaching a retaining ring 9' to the shaft 7 as shown by the two-dot chain line in the figure.
また、第２図の状態において摩擦材５を除き、ばね受４
が直接中間回転体３へ接するようにしてもよい。In addition, in the state shown in FIG. 2, the friction material 5 is removed and the spring receiver 4 is
may be in direct contact with the intermediate rotating body 3.
この場合には、作動時に中間回転体３とばね受４との間
に摩擦を生ずる。In this case, friction occurs between the intermediate rotating body 3 and the spring receiver 4 during operation.
本考案に係るクラッチは、前述のように構或されている
ので、小型なものが容易に製造でき、しかも、作動時に
雑音が少く円滑に作動する。Since the clutch according to the present invention is constructed as described above, it can be easily manufactured in a small size, and moreover, it operates smoothly with little noise during operation.
第１図は本考案に係るクラッチの一例を示す分解断面図
、第２図は組立てた状態の断面図、第３図は作動状態を
示す断面図、第４図は第一の回転体の底面図、第５図は
中間回転体の平面図、第６図は第一の回転体のかみ合い
部を軸心方向より３６０度展開した展開図、第７図は中
間回転体の第一の回転体とのかみ合い部を軸心方向より
３６０度展開した展開図、第８図は第一の回転体と中間
回転体とのかみ合った状態を軸心方向より３６０度展開
した一部展開図、第９図は作動時における第一の回転体
と中間回転体とのかみ合い状態を軸心方向より３６０度
展開した一部展開図である。
図中主要符号の説明、１は第一の回転体、１１はそのか
み合い部、２は第二の回転体、２１はそのかみ合い部、
３は中間回転体、３１．３２はそのかみ合い部、４はば
ね受、５は摩擦材、６はばねである。Fig. 1 is an exploded sectional view showing an example of the clutch according to the present invention, Fig. 2 is a sectional view of the assembled state, Fig. 3 is a sectional view showing the operating state, and Fig. 4 is the bottom surface of the first rotating body. Figure 5 is a plan view of the intermediate rotating body, Figure 6 is a developed view of the engaging portion of the first rotating body developed 360 degrees from the axial direction, and Figure 7 is the first rotating body of the intermediate rotating body. Fig. 8 is a partially exploded view of the meshed state of the first rotating body and the intermediate rotating body, unfolded 360 degrees from the axial direction; The figure is a partially exploded view of the meshing state of the first rotating body and the intermediate rotating body during operation, developed 360 degrees from the axial direction. Explanation of main symbols in the figure: 1 is the first rotating body, 11 is its meshing part, 2 is the second rotating body, 21 is its meshing part,
3 is an intermediate rotating body, 31 and 32 are meshing parts thereof, 4 is a spring receiver, 5 is a friction material, and 6 is a spring.
Claims (1)
うに規制されかつ互に自由に回転する状態に配設された
第一の回転体１および第二の回転体２と、両回転体１，
２の間において第二の回転体２に対して自由に回転しか
つ軸方向に遊動する状態に設けられた中間回転体３と、
第二の回転体２と中間回転体３の間において軸方向に遊
動する状態に設けられたばね受４と、このばね受４と中
間回転体３の間に介装された摩擦材５とを備え、第一の
回転体１と中間回転体３との対向面にはラチェット部Ｃ
と互に同一回転方向へ一定角部で傾斜した傾斜部ｂとを
有するかみ合い部１１．３１が形或され、ばね受４と第
二の回転体２の間にばばね６が介入され、中間回転体３
と第二の回転体２には中間回転体３が第二の回転体２へ
近接した時にのみ互にかみ合う状態でかみ合い部３２．
２１が形戒されてなる磁気録音録画再生装置等における
一方向クラッチ。A first rotating body 1 and a second rotating body 2, which are coaxially arranged so that the axial distance is regulated so as not to expand beyond a certain range, and can freely rotate with respect to each other, and both rotating bodies. 1,
2, an intermediate rotating body 3 is provided to freely rotate with respect to the second rotating body 2 and to be freely movable in the axial direction;
A spring bearing 4 is provided to be freely movable in the axial direction between the second rotating body 2 and the intermediate rotating body 3, and a friction material 5 is interposed between the spring bearing 4 and the intermediate rotating body 3. , a ratchet portion C is provided on the opposing surfaces of the first rotating body 1 and the intermediate rotating body 3.
A meshing part 11.31 is formed having an inclined part b inclined at a constant angle in the same direction of rotation, and a spring 6 is interposed between the spring receiver 4 and the second rotary body 2. Rotating body 3
and the second rotary body 2 have meshing portions 32 . which engage with each other only when the intermediate rotary body 3 approaches the second rotary body 2 .
A one-way clutch in a magnetic recording/recording/playback device, etc. in which 21 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14246880U JPS5911217Y2 (en) | 1980-10-06 | 1980-10-06 | One-way clutch in magnetic recording/playback equipment, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14246880U JPS5911217Y2 (en) | 1980-10-06 | 1980-10-06 | One-way clutch in magnetic recording/playback equipment, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5765236U JPS5765236U (en) | 1982-04-19 |
| JPS5911217Y2 true JPS5911217Y2 (en) | 1984-04-06 |
Family
ID=29502262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14246880U Expired JPS5911217Y2 (en) | 1980-10-06 | 1980-10-06 | One-way clutch in magnetic recording/playback equipment, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911217Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920028U (en) * | 1982-07-29 | 1984-02-07 | アマノ株式会社 | one way gear |
| JPS59168029U (en) * | 1983-04-27 | 1984-11-10 | アマノ株式会社 | Double one-way gear device for printing ribbon feeding |
-
1980
- 1980-10-06 JP JP14246880U patent/JPS5911217Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5765236U (en) | 1982-04-19 |
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