JPS6143002Y2 - - Google Patents
Info
- Publication number
- JPS6143002Y2 JPS6143002Y2 JP1982104542U JP10454282U JPS6143002Y2 JP S6143002 Y2 JPS6143002 Y2 JP S6143002Y2 JP 1982104542 U JP1982104542 U JP 1982104542U JP 10454282 U JP10454282 U JP 10454282U JP S6143002 Y2 JPS6143002 Y2 JP S6143002Y2
- Authority
- JP
- Japan
- Prior art keywords
- tension
- pulley
- guide groove
- arm
- transmission belt
- 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
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000013459 approach Methods 0.000 claims description 3
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、駆動側プーリと従動側プーリ間に
巻き掛けた伝動ベルトを、テンシヨンプーリで張
つたり緩めたりして動力の伝動を断続するベルト
テンシヨンクラツチ装置に関する。[Detailed description of the invention] Industrial application field This invention is a belt that intermittents power transmission by tensioning and loosening a transmission belt wound between a driving pulley and a driven pulley using a tension pulley. This invention relates to a tension clutch device.
従来技術とその問題点
ベルトテンシヨンクラツチ装置は、農用機械等
で多く用いられているが、引張ばねのばね力でテ
ンシヨンプーリを伝動ベルトに圧接させて動力の
伝動を行い、ばね力に抗してテンシヨンプーリを
伝動ベルトから離して動力の伝動を断つようにし
たベルトテンシヨンクラツチ装置では、動力の伝
動を断つ際に、引張ばねのばね力に抗して力を加
えなければならなく、特に強力な動力伝動を行う
伝動ベルトの場合には、強い操作力を必要として
円滑な動力伝動の断続を行い難い。Prior art and its problems Belt tension clutch devices are often used in agricultural machinery, etc., but they transmit power by pressing a tension pulley against a transmission belt using the spring force of a tension spring, and resist the spring force. In a belt tension clutch device that separates the tension pulley from the power transmission belt and cuts off the power transmission, it is necessary to apply force against the spring force of the tension spring when cutting off the power transmission. In particular, in the case of a power transmission belt that transmits powerful power, a strong operating force is required, making it difficult to smoothly connect and disconnect power transmission.
問題点を解決するための手段
そこで、この考案では、次の如く構成した。す
なわち、テンシヨンプーリ２を枢支したテンシヨ
ンアーム３を、枢支軸４に対して該テンシヨンプ
ーリ２と反対側へ向けて延長すると共に、この延
長部に案内溝５を設け、この案内溝５に引張ばね
６の係止部８を嵌合させてテンシヨンプーリ２を
伝動ベルト１に圧接し、テンシヨンアーム３を伝
動ベルト１を緩ませる側へ回動するに伴つて、引
張ばね６の係止部８が案内溝５に沿つて枢支軸４
に近づくよう構成した。Means for solving the problem Therefore, this idea was constructed as follows. That is, the tension arm 3 that pivotally supports the tension pulley 2 is extended toward the opposite side of the tension pulley 2 with respect to the pivot shaft 4, and a guide groove 5 is provided in this extension, and the guide groove 5 is provided in this extension. The locking part 8 of the tension spring 6 is fitted into the groove 5 to press the tension pulley 2 against the transmission belt 1, and as the tension arm 3 is rotated to the side that loosens the transmission belt 1, the tension spring is released. The locking portion 8 of 6 is attached to the pivot shaft 4 along the guide groove 5.
It was configured to approach .
考案の作用及び効果
テンシヨンプーリ２は、テンシヨンアーム３の
案内溝５に嵌合させた引張ばね６の係止部８を介
して、引張ばね６のばね力で伝動ベルト１に圧接
されて、動力の伝動を行つているのであるが、動
力の伝動を断つ場合には、テンシヨンアーム３を
回動させるに伴つて、引張ばね６の係止部８が、
案内溝５内をテンシヨンアーム３の枢支軸４側へ
移動するので、引張ばね６の伸びが少なく、しか
もテンシヨンアーム３に働く引張ばね６の作用点
が枢支軸４の近くとなつて回転トルク増大が少な
く、それに伴つてテンシヨンアーム３を回動させ
る操作力も小さくてすむことになる。Functions and Effects of the Invention The tension pulley 2 is pressed against the transmission belt 1 by the spring force of the tension spring 6 through the locking portion 8 of the tension spring 6 fitted into the guide groove 5 of the tension arm 3. , power is transmitted, but when cutting off the power transmission, as the tension arm 3 is rotated, the locking portion 8 of the tension spring 6 is
Since the tension spring 6 moves within the guide groove 5 toward the pivot shaft 4 side of the tension arm 3, the extension of the tension spring 6 is small, and the point of action of the tension spring 6 acting on the tension arm 3 is near the pivot shaft 4. Therefore, the increase in rotational torque is small, and accordingly, the operating force for rotating the tension arm 3 is also small.
実施例
次に、この考案の一実施例を図面で説明する。
駆動軸１０に固着した駆動プーリ１１と従動軸１
２に固着した従動プーリ１３に伝動ベルト１を巻
き掛ける。従動プーリ１３から別の従動プーリ１
４に伝動ベルト２２を巻き掛け、さらに動力伝動
を行つている。前記伝動ベルト１を張緩するテン
シヨンプーリ２は、機枠１５に突設した枢支軸４
にボス部１６を嵌合させたテンシヨンアーム３に
枢着する。このテンシヨンアーム３のボス部１６
に対してテンシヨンプーリ２と反対側には断面形
状をコ字型に屈曲させた案内溝５を形成する。リ
ンクアーム７は、そのボス部１７を機枠１５に突
設した枢支軸９に枢着したもので、一端に固着し
た支軸１８に引張ばね６を引き掛けると共に、他
端にはこのリンクアーム７を回動させるワイヤー
１９を連結する。また、支軸１８の該テンシヨン
アーム３の案内溝８に嵌合させる部分には、コロ
２０を枢支して、案内溝８内での支軸１８の移動
を円滑ならしめている。リンクレバー７の枢支軸
９は、引張ばね６を引つ掛けた引張ばね係止部８
である支軸１８が、リンクレバー７の回動によつ
てテンシヨンアーム３の枢支軸４に対して接近し
たり離れたりする位置に設けている。ワイヤー１
９は手動あるいは足踏のクラツチ操作具（図示省
略）に連動させ、引張ばね６は伸縮自在にした調
節具２１に引つ掛け、引張力を調節可能にしてい
る。Embodiment Next, an embodiment of this invention will be explained with reference to the drawings.
Drive pulley 11 fixed to drive shaft 10 and driven shaft 1
The transmission belt 1 is wound around the driven pulley 13 fixed to the drive pulley 2. From driven pulley 13 to another driven pulley 1
A power transmission belt 22 is wrapped around 4 to further transmit power. The tension pulley 2 that tensions and loosens the transmission belt 1 is attached to a pivot shaft 4 protruding from the machine frame 15.
The tension arm 3 is pivotally connected to the tension arm 3 in which the boss portion 16 is fitted. Boss portion 16 of this tension arm 3
On the other hand, on the opposite side from the tension pulley 2, a guide groove 5 whose cross section is bent into a U-shape is formed. The link arm 7 has a boss portion 17 pivotally connected to a pivot shaft 9 protruding from the machine frame 15. A tension spring 6 is hooked onto a support shaft 18 fixed to one end, and this link is attached to the other end. A wire 19 for rotating the arm 7 is connected. Further, a roller 20 is pivotally supported in a portion of the support shaft 18 that is fitted into the guide groove 8 of the tension arm 3, so that the movement of the support shaft 18 within the guide groove 8 is smoothed. The pivot shaft 9 of the link lever 7 is connected to a tension spring locking portion 8 on which the tension spring 6 is hooked.
A support shaft 18 is provided at a position where it approaches or separates from the pivot shaft 4 of the tension arm 3 as the link lever 7 rotates. wire 1
Reference numeral 9 is linked to a manual or foot-operated clutch operating tool (not shown), and the tension spring 6 is hooked to a telescopic adjustment tool 21, so that the tension can be adjusted.
なお、テンシヨンアーム３の案内溝５を半径方
向の長穴に形成して、支軸１８を嵌合させる構成
でもよい。 Note that the guide groove 5 of the tension arm 3 may be formed into a radially elongated hole and the support shaft 18 may be fitted therein.
クラツチ操作具を操作せずワイヤー１９に張力
を与えない状態では、引張ばね６の引張力が案内
溝５を介してテンシヨンアーム３に加わり、テン
シヨンプーリ２を伝動ベルト１に圧接させて駆動
側プーリ１１から従動側プーリ１３へ動力伝動を
行つている。この状態からクラツチ操作具を操作
してワイヤー１９を引けば、リンクアーム７が回
動して引張ばね係止部１８がテンシヨンアーム３
の案内溝５内を枢支軸４側へ移動して、テンシヨ
ンアーム３を大きく回動させテンシヨンプーリ２
を伝動ベルト１から離して動力伝動を断つのであ
る。 When the clutch operation tool is not operated and no tension is applied to the wire 19, the tension force of the tension spring 6 is applied to the tension arm 3 via the guide groove 5, and the tension pulley 2 is pressed against the transmission belt 1 and driven. Power is transmitted from the side pulley 11 to the driven pulley 13. If the clutch operating tool is operated to pull the wire 19 from this state, the link arm 7 will rotate and the tension spring locking portion 18 will be connected to the tension arm 3.
The tension arm 3 is rotated by moving the tension arm 3 toward the pivot shaft 4 side in the guide groove 5 of the tension pulley 2.
is separated from the transmission belt 1 to cut off power transmission.
このように、引張ばね６の伸びを少なくしてテ
ンシヨンアーム３を大きく回動させるので、クラ
ツチ操作具の操作力が軽くて、確実な動力の断続
をするベルトテンシヨンクラツチ装置となるので
ある。 In this way, since the extension of the tension spring 6 is reduced and the tension arm 3 is rotated by a large amount, the operating force of the clutch operating tool is light and the belt tension clutch device is able to reliably intermittent power. .
図は、この考案の一実施例を示すもので、第１
図は正面図、第２図は１部を展開した平面図であ
る。
１……伝動ベルト、２……テンシヨンプーリ、
３……テンシヨンアーム、４……枢支軸、５……
案内溝、６……引張ばね、８……係止部。
The figure shows one embodiment of this invention.
The figure is a front view, and FIG. 2 is a partially developed plan view. 1...Transmission belt, 2...Tension pulley,
3...Tension arm, 4...Pivot shaft, 5...
Guide groove, 6... tension spring, 8... locking portion.
Claims (1)
ム３を、枢支軸４に対して該テンシヨンプーリ２
と反対側へ向けて延長すると共に、この延長部に
案内溝５を設け、この案内溝５に引張ばね６の係
止部８を嵌合させてテンシヨンプーリ２を伝動ベ
ルト１に圧接し、テンシヨンアーム３を伝動ベル
ト１を緩ませる側へ回動するに伴つて、引張ばね
６の係止部８が案内溝５に沿つて枢支軸４に近づ
くよう構成してなるベルトテンシヨンクラツチ装
置。 The tension arm 3 that pivotally supports the tension pulley 2 is attached to the tension pulley 2 with respect to the pivot shaft 4.
and a guide groove 5 is provided in this extension part, and the locking part 8 of the tension spring 6 is fitted into this guide groove 5 to press the tension pulley 2 to the transmission belt 1, A belt tension clutch configured such that as the tension arm 3 is rotated toward the side that loosens the transmission belt 1, the locking portion 8 of the tension spring 6 approaches the pivot shaft 4 along the guide groove 5. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10454282U JPS5910551U (en) | 1982-07-10 | 1982-07-10 | Belt tension clutch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10454282U JPS5910551U (en) | 1982-07-10 | 1982-07-10 | Belt tension clutch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5910551U JPS5910551U (en) | 1984-01-23 |
| JPS6143002Y2 true JPS6143002Y2 (en) | 1986-12-05 |
Family
ID=30245428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10454282U Granted JPS5910551U (en) | 1982-07-10 | 1982-07-10 | Belt tension clutch device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5910551U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605144Y2 (en) * | 1976-12-31 | 1985-02-16 | セイレイ工業株式会社 | tension clutch device |
-
1982
- 1982-07-10 JP JP10454282U patent/JPS5910551U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910551U (en) | 1984-01-23 |
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