JPH03134351A - Tooth skipping preventing device for toothed belt - Google Patents

Tooth skipping preventing device for toothed belt

Info

Publication number
JPH03134351A
JPH03134351A JP27403989A JP27403989A JPH03134351A JP H03134351 A JPH03134351 A JP H03134351A JP 27403989 A JP27403989 A JP 27403989A JP 27403989 A JP27403989 A JP 27403989A JP H03134351 A JPH03134351 A JP H03134351A
Authority
JP
Japan
Prior art keywords
belt
arm
pulley
tooth
driven pulley
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.)
Pending
Application number
JP27403989A
Other languages
Japanese (ja)
Inventor
Tetsuo Murotani
室谷 哲夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP27403989A priority Critical patent/JPH03134351A/en
Publication of JPH03134351A publication Critical patent/JPH03134351A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent loosening of a belt and to prevent skipping of a tooth of the toothed belt by bringing rollers at the tip ends of C-frame prevention arms into contact with the upper and lower surfaces of the toothed belt and by pressing parts where pulleys are engaged with the belt. CONSTITUTION:C-frame prevention arms 26 and 36 constituted by sensing arms 28 and 38 and pressing arms 30 and 40 are rotatably provided at a shaft 24 horizontally provided in the outside neighborhood of pulleys 12 and 14. At the tip end of this sensing arm 28, a roller 32 is rotatably provided, and this roller 32 is brought into contact with an upper surface 16a of a belt 16. Also, a roller 34 is rotatably provided at the tip end of the pressing arm 30, and this roller 34 is brought into contact with the position where the pulley 14 on the lower surface of the belt 16 is engaged with the belt 16. As the sensing arm 38 and the pressing arm 40 are provided in such a manner that are formed vertically opposite to the above at the other end of the shaft 24, loosening of the belt 16 and skipping of a tooth can be prevented regardless of rotation direction of the pulleys 12 and 14.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、従動プーリと駆動プーリに歯付ベルトをかけ
渡したベルト機構の歯付ベルトの歯飛び防止装置に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tooth skip prevention device for a toothed belt of a belt mechanism in which a toothed belt is passed around a driven pulley and a driving pulley.

[従来の技術と発明が解決しようとする課題]ギヤ型の
従動プーリと駆動プーリに歯付ベルトをかけ渡したベル
ト機構は、あらゆる分野の装置に使用されている。
[Prior Art and Problems to be Solved by the Invention] Belt mechanisms in which a toothed belt is passed around a gear-type driven pulley and a driving pulley are used in devices in all fields.

そして、このベルト機構を使用した装置における共通の
問題が、歯飛びの現象である。この歯飛び現象は、従動
プーリにおいては、ベルトの引込み側の従動プーリから
ベルトのかみ合わせ部分に発生し、駆動プーリにおいて
は、ベルトの送り出し側の駆動プーリとベルトのかみ合
わせ部分に発生する。
A common problem in devices using this belt mechanism is the phenomenon of tooth skipping. In the driven pulley, this tooth-skipping phenomenon occurs at the meshing portion of the belt from the driven pulley on the retraction side of the belt, and in the driving pulley, it occurs at the meshing portion of the driving pulley and the belt on the delivery side of the belt.

そのため、従来よりこの歯飛び現象の防止装置が種々提
案されているが、どれも複雑であった。
Therefore, various devices for preventing this tooth skipping phenomenon have been proposed, but all of them are complicated.

[発明の目的] 本発明は、歯飛び現象を容易に防止できる歯付ベルトの
歯飛び防止装置を提供する。
[Object of the Invention] The present invention provides a tooth skip prevention device for a toothed belt that can easily prevent the tooth skip phenomenon.

[課題を解決するための手段] 本発明の請求項1の歯付ベルトの歯飛び防止装置は、従
動プーリと駆動プーリに歯付ベルトをかけ渡したベルト
機構において、従動プーリの近くに設けた支点から従動
プーリの送り出し側のベルトの表面に向って感知腕が延
設され、前記支点から従動プーリの引込み側におけるベ
ルトと従動プーリとがかみ合う位置にあるベルトの表面
に向って抑圧腕が前記感知腕から一体に延設され、前記
感知腕と抑圧腕の先端が、ベルトの表面にそれぞれ接触
してなることを特徴とするものである。
[Means for Solving the Problems] The tooth skip prevention device for a toothed belt according to claim 1 of the present invention is a belt mechanism in which a toothed belt is passed between a driven pulley and a driving pulley, and is provided near the driven pulley. A sensing arm extends from the fulcrum toward the surface of the belt on the delivery side of the driven pulley, and a suppressing arm extends from the fulcrum toward the surface of the belt at a position where the belt on the retraction side of the driven pulley and the driven pulley engage. The belt is characterized in that it extends integrally from the sensing arm, and the tips of the sensing arm and the suppressing arm are in contact with the surface of the belt, respectively.

請求項2の歯付ベルトの歯飛び防止装置は、従動プーリ
と駆動プーリに歯付きベルトをかけ渡したベルト機構に
おいて、駆動プーリの近くに設けた支点から駆動プーリ
の引込み側のベルトの表面に向って感知腕が延設され、
前記支点から駆動プーリの送り出し側におけるベルトと
駆動プーリとがかみ合う位置にあるベルトの表面に向っ
て押圧腕が前記感知腕から一体に延設され、前記感知腕
と抑圧腕の先端がベルトの表面にそれぞれ接触してなる
ことを特徴とするものである。
The tooth skipping prevention device for a toothed belt according to claim 2 is a belt mechanism in which a toothed belt is passed around a driven pulley and a driving pulley, and a tooth skipping prevention device for a toothed belt is provided in which a tooth skipping preventive device is provided in which a tooth skipping prevention device for a toothed belt is provided. A sensing arm is extended towards the
A pressing arm is integrally extended from the sensing arm toward the surface of the belt at a position where the belt and the driving pulley engage on the delivery side of the driving pulley from the fulcrum, and the tips of the sensing arm and the suppressing arm are connected to the surface of the belt. It is characterized by being in contact with each other.

[作 用] 請求項1の歯付ベルトの歯飛び防止装置においいて、駆
動プーリが回転すると、従動プーリの送り出し側のベル
トが緊張し、引込み側がゆるんでくる。ベルトの送り出
し側に位置する感知腕の先端は、ベルトの緊張によって
ベルトの外方側に押され、それと共に支点を中心に押圧
腕が引込み側のベルトにおけるベルトと従動プーリとが
かみ合う位置にあるベルトの表面を、ベルトの内方側に
押圧し、ベルトの引込み側のゆるみを特徴する 請求項2の歯付ベルトの歯飛び防止装置において、駆動
プーリが回転すると、この駆動プーリの引き込み側が緊
張し、送り出し側がゆるんでくる。ベルトの引き込み側
に位置する感知腕の先端は、ベルトの緊張によって、ベ
ルトの外方側に押され、それと共に支点を中心に押圧腕
が送り出し側のベルトにおけるベルトと駆動プーリとか
かみ合う位置にあるベルトの表面をベルトの内方側に押
圧し、ベルトの送り出し側のゆるみを防止する。
[Function] In the tooth-skipping prevention device for a toothed belt according to claim 1, when the driving pulley rotates, the belt on the sending side of the driven pulley becomes tense and the pulling side of the driven pulley loosens. The tip of the sensing arm located on the delivery side of the belt is pushed to the outside of the belt by the tension of the belt, and at the same time, the pressing arm is in a position around the fulcrum where the belt and the driven pulley on the retraction side of the belt engage. In the tooth skip prevention device for a toothed belt according to claim 2, characterized in that the surface of the belt is pressed inward of the belt so that the pull-in side of the belt is loosened, when the drive pulley rotates, the pull-in side of the drive pulley becomes tensioned. Then, the feeding side becomes loose. The tip of the sensing arm located on the retracting side of the belt is pushed to the outside of the belt by the tension of the belt, and at the same time, the pressing arm is in a position to engage with the belt and drive pulley on the output side of the belt around the fulcrum. The surface of the belt is pressed inward to prevent the belt from loosening on the delivery side.

[実施例] 以下、本発明の一実施例を図面に基いて説明する。[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

(10)は、本実施例のベルト機構である。(10) is the belt mechanism of this embodiment.

(12)は、不図示のモータに直結されたギヤ型の駆動
プーリである。
(12) is a gear-type drive pulley directly connected to a motor (not shown).

(14)は、ギヤ型の従動プーリである。(14) is a gear type driven pulley.

(16)は、歯付ベルトであって、駆動プーリ(12)
と従動プーリ(14)との間にかけ渡されている。
(16) is a toothed belt, and the drive pulley (12)
and the driven pulley (14).

上記ベルト機構(10)は、ベルト(1B)の面が水平
になるように配置されている。すなわち、駆動プーリ(
12)と従動プーリ(14)の回転軸(18)(20)
が水平に設けられている。
The belt mechanism (10) is arranged so that the surface of the belt (1B) is horizontal. In other words, the drive pulley (
12) and the rotating shaft (18) (20) of the driven pulley (14)
is placed horizontally.

次に、歯飛び防止装置(22)について説明する。Next, the tooth skip prevention device (22) will be explained.

(24)は、軸であって、従動プーリ(14)の外側近
傍において、水平に設けられている。
(24) is a shaft, and is provided horizontally near the outside of the driven pulley (14).

(2B)は、C型の防止腕であって、軸(24)の−端
部に、この軸(24)を中心に回動自在に設けられてい
る。この防止腕(2B)は、上部の感知腕(28)と下
部の押圧腕(30)とよりなる。感知腕(28)は、軸
(24)からベルト(16)の上方を経てベルト(16
)の上面(16a)に向って屈曲して延びている。
(2B) is a C-shaped prevention arm, which is provided at the negative end of the shaft (24) so as to be rotatable about the shaft (24). This prevention arm (2B) consists of an upper sensing arm (28) and a lower pressing arm (30). The sensing arm (28) passes from the shaft (24) above the belt (16) to the belt (16).
) is bent and extends toward the upper surface (16a).

この感知腕(28)の先端であるベルト(16)の上面
(lea)に接触する個所にローラ(32)が回動自在
に設けられている。押圧腕(30)は、軸(24)から
ベルト(16)の下方を経てベルト(16)の下面にお
ける従動プーリ(14)とベルト(10)とがかみ合う
位置(以下、下面係合部という’) (16b)に向っ
て屈曲して延びている。この抑圧腕(30)の先端であ
るベルト(16)の下面係合部(16b)に接触する個
所にローラ(34)が回動自在に設けられている。
A roller (32) is rotatably provided at the tip of the sensing arm (28) that contacts the upper surface (lea) of the belt (16). The pressing arm (30) passes from the shaft (24) below the belt (16) to a position on the lower surface of the belt (16) where the driven pulley (14) and the belt (10) engage (hereinafter referred to as the lower surface engaging portion). ) (16b). A roller (34) is rotatably provided at the tip of the suppressing arm (30) that contacts the lower surface engaging portion (16b) of the belt (16).

(36)は、C型の防止腕であって、軸(24)の他端
部に、この軸(24)を中心に回動自在に設けられてい
る。この防止腕(36)は、下部の感知腕(38)と上
部の押圧腕(40)とよりなる。この感知腕(38)は
軸(24)からベルト(16)の下方を経て、ベルト(
16)の下面(lee)に向って屈曲して伸びている。
(36) is a C-shaped prevention arm, which is provided at the other end of the shaft (24) so as to be rotatable about the shaft (24). This prevention arm (36) consists of a lower sensing arm (38) and an upper pressing arm (40). This sensing arm (38) passes from the shaft (24) below the belt (16) to the belt (
16) is bent and extends toward the lower surface (lee).

この感知腕(38)の先端であるベルト(16)の下面
(lee)に接触する個所にローラ(42)が回動自在
に設けられている。押圧腕(40)は、軸(24)から
ベルト(16)の上方を経て、ベルト(1B)の上面に
おける従動プーリ(14)とベルト(16)がかみ合う
位置(以下、上面係合部という) (led)に向って
屈曲して延びている。この抑圧腕(40)の先端である
ベルト(1B)の上面係合部(led)に接触する個所
には、ローラ(44)が設けられている。
A roller (42) is rotatably provided at the tip of the sensing arm (38) that contacts the lower surface (lee) of the belt (16). The pressing arm (40) passes from the shaft (24) above the belt (16) to a position on the upper surface of the belt (1B) where the driven pulley (14) and the belt (16) engage (hereinafter referred to as the upper surface engaging portion). (LED). A roller (44) is provided at the tip of the suppressing arm (40) that contacts the upper surface engaging portion (LED) of the belt (1B).

なお、ローラ(32) (34) (42) (44)
はベルト(16)の移動と共に回動し、感知腕(2g)
 (38)や押圧腕(30) (40)がベルト(16
)に接触しても、ベルト(16)の移動を妨げないよう
になっている。
In addition, rollers (32) (34) (42) (44)
rotates with the movement of the belt (16), and the sensing arm (2g)
(38) and pressing arms (30) (40) are connected to the belt (16).
) so as not to impede movement of the belt (16).

ベルト機構(10)における上記歯飛び防止装置(22
)の作動状態を下記に説明する。
The tooth skip prevention device (22) in the belt mechanism (10)
) is explained below.

まず、駆動プーリ(12)が、第1図において反時計方
向に回・−転している場合を説明する。
First, the case where the drive pulley (12) is rotating counterclockwise in FIG. 1 will be described.

駆動プーリ(12)が反時計方向に回転すると、ベルト
(16)の上面(lea)がゆるみ、ベルト(16)の
下面(lee)が緊張する。そのため、感知腕(38)
がベルト(16)の下面(16c)によって押下げられ
、防止腕(36)は、軸(24)を中心に回動し、押圧
腕(40)のローラ(44)が上面係合部(16d)に
位置するベルト(16)を従動プーリ(14)の周面に
向っで押圧する。この押圧することにより、ベルト(1
6)の上面(16a)のゆるみによる歯飛びを防止する
When the drive pulley (12) rotates counterclockwise, the upper surface (lea) of the belt (16) loosens and the lower surface (lee) of the belt (16) tightens. Therefore, the sensing arm (38)
is pressed down by the lower surface (16c) of the belt (16), the prevention arm (36) rotates around the shaft (24), and the roller (44) of the pressing arm (40) presses down on the upper surface engaging portion (16d). ) is pressed against the circumferential surface of the driven pulley (14). By this pressing, the belt (1
6) Prevents tooth skipping due to loosening of the upper surface (16a).

次に、駆動プーリ(12)が、第1図における時計方向
に回転している場合を説明する。
Next, a case where the drive pulley (12) is rotating clockwise in FIG. 1 will be described.

駆動プーリ(12)が時計方向に回転すると、ベルト(
16)の下面(lee)がゆるみ、ベルト(16)の上
面(lea)が緊張する。そのため、感知腕(28)が
ベルト(16)の上面(16a)によって押上げられ、
抑圧腕(30)のローラ(34)が下面係合部(16b
)に位置するベルト(I6)を摺動プーリ(14)の周
面に向って押圧する。この押圧することによりベルト(
16)の下面(16c)のゆるみによる歯飛びを防止す
る。
When the drive pulley (12) rotates clockwise, the belt (
The lower surface (lee) of belt (16) is loosened and the upper surface (lea) of belt (16) is tensed. Therefore, the sensing arm (28) is pushed up by the upper surface (16a) of the belt (16),
The roller (34) of the suppression arm (30) engages the lower surface engaging portion (16b).
) is pressed against the circumferential surface of the sliding pulley (14). By pressing this, the belt (
16) Prevents tooth skipping due to loosening of the lower surface (16c).

上記により、本実施例の歯飛び防止装置(22)は、モ
ータ等の駆動装置の不用な簡単な構造であり、駆動プー
リ(12)がどちらの方向に回転しても、歯飛びを防止
できる。
As described above, the tooth skipping prevention device (22) of this embodiment has a simple structure that does not require a drive device such as a motor, and can prevent tooth skipping no matter which direction the drive pulley (12) rotates. .

また、上記実施例では、従動プーリ(14)側に、歯飛
び防止装置(22)を設けたが、駆動プーリ(12)側
にも歯飛び防止装置(22)を設けてもよい。
Further, in the above embodiment, the tooth skip prevention device (22) is provided on the driven pulley (14) side, but the tooth skip prevention device (22) may also be provided on the drive pulley (12) side.

[発明の効果] 上記により、本発明の歯付きベルトの歯飛び防止装置は
、従動プーリまたは駆動プーリとベルトとのかみ合う部
分を押圧するため、歯飛びを防止できる。また、本発明
は、歯飛び防止装置のための特別な駆動装置が不要であ
り、その構造が簡単である。
[Effects of the Invention] As described above, the device for preventing tooth skipping of a toothed belt of the present invention can prevent tooth skipping because it presses the part where the driven pulley or the driving pulley and the belt engage. Furthermore, the present invention does not require a special drive device for the tooth skip prevention device, and its structure is simple.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の一実施例を示すベルト機構及び歯飛
び防止装置の側面図、 第2図は、第1図における要部の平面図、第3図は、歯
飛び防止装置の斜視図である。 [符号の説明] 10・・・・・・ベルト機構 12・−・・・・駆動プーリ 14・・・・・・従動プーリ 16・・・・・・ベルト 22・・・・・・歯飛び防止装置 24・・・・・・軸 26・・・・・・防止腕 28・・・・・・感知腕 30・・・・・・押圧腕 36・・・・・・防止腕 38・・・・・・感知腕 40・・・・・・押圧腕 第3図
FIG. 1 is a side view of a belt mechanism and tooth skipping prevention device showing one embodiment of the present invention, FIG. 2 is a plan view of the main parts in FIG. 1, and FIG. 3 is a perspective view of the tooth skipping prevention device. It is a diagram. [Explanation of symbols] 10...Belt mechanism 12...Drive pulley 14...Followed pulley 16...Belt 22...Tooth skipping prevention Device 24... Axis 26... Preventing arm 28... Sensing arm 30... Pressing arm 36... Preventing arm 38... ... Sensing arm 40 ... Pressing arm Fig. 3

Claims (1)

【特許請求の範囲】 1、従動プーリと駆動プーリに歯付ベルトをかけ渡した
ベルト機構において、 従動プーリの近くに設けた支点から従動プーリの送り出
し側のベルトの表面に向って感知腕が延設され、 前記支点から従動プーリの引込み側におけるベルトと従
動プーリとがかみ合う位置にあるベルトの表面に向って
押圧腕が前記感知腕から一体に延設され、 前記感知腕と押圧腕の先端が、ベルトの表面にそれぞれ
接触してなることを特徴とする 歯付ベルトの歯飛び防止装置。 2、従動プーリと駆動プーリに歯付きベルトをかけ渡し
たベルト機構において、 駆動プーリの近くに設けた支点から駆動プーリの引込み
側のベルトの表面に向って感知腕が延設され、 前記支点から駆動プーリの送り出し側におけるベルトと
駆動プーリとがかみ合う位置にあるベルトの表面に向っ
て押圧腕が前記感知腕から一体に延設され、 前記感知腕と押圧腕の先端がベルトの表面にそれぞれ接
触してなることを特徴とする歯付ベルトの歯飛び防止機
構。
[Claims] 1. In a belt mechanism in which a toothed belt is stretched between a driven pulley and a driving pulley, a sensing arm extends from a fulcrum provided near the driven pulley toward the surface of the belt on the delivery side of the driven pulley. a pressing arm is integrally extended from the sensing arm from the fulcrum toward the surface of the belt at a position where the belt and the driven pulley engage on the retracting side of the driven pulley, and the tips of the sensing arm and the pressing arm are connected to each other. A tooth-skipping prevention device for a toothed belt, characterized in that the teeth are in contact with the surface of the belt. 2. In a belt mechanism in which a toothed belt is passed between a driven pulley and a driving pulley, a sensing arm is provided extending from a fulcrum provided near the driving pulley toward the surface of the belt on the retracting side of the driving pulley, and from the fulcrum. A pressing arm is integrally extended from the sensing arm toward the surface of the belt at a position where the belt and the driving pulley engage on the delivery side of the driving pulley, and the tips of the sensing arm and the pressing arm are in contact with the surface of the belt, respectively. A tooth-skipping prevention mechanism for toothed belts.
JP27403989A 1989-10-20 1989-10-20 Tooth skipping preventing device for toothed belt Pending JPH03134351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27403989A JPH03134351A (en) 1989-10-20 1989-10-20 Tooth skipping preventing device for toothed belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27403989A JPH03134351A (en) 1989-10-20 1989-10-20 Tooth skipping preventing device for toothed belt

Publications (1)

Publication Number Publication Date
JPH03134351A true JPH03134351A (en) 1991-06-07

Family

ID=17536115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27403989A Pending JPH03134351A (en) 1989-10-20 1989-10-20 Tooth skipping preventing device for toothed belt

Country Status (1)

Country Link
JP (1) JPH03134351A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672982B2 (en) * 1998-10-28 2004-01-06 Yamaha Motor Co., Ltd. Motorcycle transmission
JP2010023948A (en) * 2008-07-16 2010-02-04 Seiko Epson Corp Belt driving device and recording apparatus
JP2017031985A (en) * 2015-07-29 2017-02-09 キヤノンファインテック株式会社 Rotation transmission mechanism and image forming system
US9938106B2 (en) * 2015-11-09 2018-04-10 Kyocera Document Solutions Inc. Sheet housing device and image forming apparatus
US20220235851A1 (en) * 2021-01-22 2022-07-28 Borgwarner Inc. Method(s) to apply tension to increase drivetrain jump torque capacity
US12078245B2 (en) 2022-05-31 2024-09-03 Borgwarner Inc. Face of tensioner guide or arm with pattern to influence chain system NVH performance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672982B2 (en) * 1998-10-28 2004-01-06 Yamaha Motor Co., Ltd. Motorcycle transmission
JP2010023948A (en) * 2008-07-16 2010-02-04 Seiko Epson Corp Belt driving device and recording apparatus
JP2017031985A (en) * 2015-07-29 2017-02-09 キヤノンファインテック株式会社 Rotation transmission mechanism and image forming system
US9938106B2 (en) * 2015-11-09 2018-04-10 Kyocera Document Solutions Inc. Sheet housing device and image forming apparatus
US20220235851A1 (en) * 2021-01-22 2022-07-28 Borgwarner Inc. Method(s) to apply tension to increase drivetrain jump torque capacity
JP2022113145A (en) * 2021-01-22 2022-08-03 ボーグワーナー インコーポレーテッド Method(s) of applying tension to increase drivetrain jump torque capacity
US11796040B2 (en) * 2021-01-22 2023-10-24 Borgwarner Inc. Method(s) to apply tension to increase drivetrain jump torque capacity
US12078245B2 (en) 2022-05-31 2024-09-03 Borgwarner Inc. Face of tensioner guide or arm with pattern to influence chain system NVH performance

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