JPH08270761A - Toothed pulley made of resin - Google Patents
Toothed pulley made of resinInfo
- Publication number
- JPH08270761A JPH08270761A JP7166195A JP7166195A JPH08270761A JP H08270761 A JPH08270761 A JP H08270761A JP 7166195 A JP7166195 A JP 7166195A JP 7166195 A JP7166195 A JP 7166195A JP H08270761 A JPH08270761 A JP H08270761A
- Authority
- JP
- Japan
- Prior art keywords
- collar
- hook
- toothed pulley
- hole
- toothed
- 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.)
- Granted
Links
Landscapes
- Pulleys (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、モータ等の回転動力を
伝達するのに使用される軽量で量産が容易な樹脂製歯付
プーリに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin toothed pulley which is used for transmitting rotational power of a motor or the like and is lightweight and easy to mass produce.
【0002】[0002]
【従来の技術】従来からモータ等の回転動力を伝達する
のに使用される歯付プーリには、金属製歯付プーリと、
樹脂製歯付プーリとがあり、主に金属製歯付プーリが多
く利用されている。2. Description of the Related Art Conventionally, a toothed pulley used to transmit rotational power of a motor or the like includes a metallic toothed pulley,
There are resin toothed pulleys, and metal toothed pulleys are mainly used.
【0003】金属製歯付プーリは、歯形状を鋳造にて加
工するか、又は、歯形状を切削加工し所要の長さに切断
するかした後、歯付プーリを支持するための軸穴加工を
施し、必要に応じて、軸穴に対し回り止めのための回り
止め加工、例えばキー溝加工等と、歯付プーリから歯付
ベルトが脱落するのを防止するための鍔取付用の鍔部加
工を施して製作されていた。そして、その鍔は、プレス
成形にて製作され、鍔と歯付プーリの鍔部とを嵌合さ
せ、その嵌合部付近をかしめることにより取り付けられ
ていた。The metal toothed pulley is formed by casting the tooth shape or cutting the tooth shape to cut it into a required length, and then machining a shaft hole for supporting the toothed pulley. A collar part for attaching a collar to prevent the toothed belt from coming off from the toothed pulley, as well as rotation prevention processing to prevent the shaft hole from rotating, for example, key groove processing, etc. It was processed and produced. Then, the flange is manufactured by press molding, and the flange and the flange portion of the toothed pulley are fitted to each other, and are attached by caulking the vicinity of the fitting portion.
【0004】又、樹脂製歯付プーリは、歯付ベルト幅と
ほぼ同等の幅の歯を備え、その何れか一方に一体的に形
成した鍔を備えた鍔付歯と、鍔形状を形成した鍔との2
種類の部品を射出成形により製作した後、鍔付歯の鍔を
備えない他方側に鍔を接着剤にて固着するか又は爪の噛
み合わせによって嵌め合わせるかをして組み立てられて
いた。Further, the resin toothed pulley is provided with teeth having a width substantially equal to the width of the toothed belt, and is formed with a collared tooth having a collar integrally formed on one side thereof and a collar shape. 2 with Tsuba
After manufacturing various kinds of parts by injection molding, the other side of the collared tooth that is not provided with the collar is fixed by an adhesive or is fitted by engaging the claws.
【0005】[0005]
【発明が解決しようとする課題】従来の金属製歯付プー
リは、歯付プーリを使用する機械装置の仕様によって、
歯数、軸穴径、回り止め形状、鍔の有無の指示が仕様毎
に異なるため、歯形状の加工、軸穴の加工、回り止めの
加工、及び、鍔部の加工の各々の工程間で、仕掛品を保
有しなければならない状況があった。しかも、このよう
に、その都度異なった仕様の加工をしていたのでは、完
成までの期間がかかりすぎるし、加工毎に加工物をクラ
ンプし直すことになるため、加工基準の位置ズレが発生
する事があり、仕上り寸法精度に悪影響が出ていた。そ
して、これら金属製歯付プーリの加工は、切削加工が中
心となるため、金属屑が大量に発生する。そのため、金
属屑の産業廃棄物としての処理費用が大きな負担とな
り、資源の無駄遣いにもなっている。A conventional metal toothed pulley is constructed according to the specifications of a mechanical device using the toothed pulley.
The number of teeth, shaft hole diameter, non-rotating shape, and instructions for the presence or absence of flanges differ depending on the specifications.Therefore, during each process of tooth shape processing, shaft hole processing, anti-rotation processing, and collar processing There was a situation where I had to hold work in process. Moreover, if different specifications were used for each process, it would take too long to complete the work, and the workpiece would have to be re-clamped for each process, resulting in misalignment of the machining reference. However, the finished dimensional accuracy was adversely affected. Since machining of these metal toothed pulleys is mainly performed by cutting, a large amount of metal scraps are generated. Therefore, the cost of processing metal scraps as industrial wastes is a heavy burden and wastes resources.
【0006】又、歯付プーリを使用する機械装置におい
て、金属製歯付プーリを使用し、回転動力の起動・停止
を繰り返す場合、金属製歯付プーリの重量が重いため、
慣性力の影響から、モータ等の回転動力の起動時及び停
止時の負荷が大きく、回転加速性能と回転停止性能の悪
化を招いている。それと、金属製歯付プーリは、鍔が別
部品となっているため、鍔の取り付け時のかしめ状態が
悪いと、簡単に鍔が外れてしまうことがあり、歯付プー
リを使用する機械装置の他の部品に噛み込んだりして、
故障や破損の原因になっていた。Further, in a mechanical device using a toothed pulley, when a metallic toothed pulley is used and the starting and stopping of rotational power is repeated, the weight of the metallic toothed pulley is heavy.
Due to the influence of the inertial force, the load of the rotational power of the motor or the like at the time of starting and stopping is large, resulting in deterioration of the rotational acceleration performance and the rotational stop performance. Also, since the metal toothed pulley has a separate collar, if the caulking condition when mounting the collar is not good, the collar may easily come off, and the mechanical device using the toothed pulley may Biting into other parts,
It was a cause of breakdown and damage.
【0007】樹脂製歯付プーリは、従来の技術で述べた
とおり、2種類の成形部品から構成されている。すなわ
ち、最低でも必ず2種類の金型を必要とするため、生産
コスト上大きな負担となっている。The resin toothed pulley is composed of two types of molded parts as described in the prior art. That is, at least two types of molds are required at least, which is a heavy burden on the production cost.
【0008】[0008]
【課題を解決するための手段】本発明は上記の課題を解
決するためになされたもので、歯付ベルト幅の約2分の
1の幅で歯付ベルトの歯形とほぼ同一の歯形を構成する
歯形部と、その歯形部の幅方向の何れか一方に一体的に
形成した鍔を備え、かつ、その中心部に所要直径の軸穴
を設け、上記鍔を備えない他方に上記軸穴の中心を通る
任意の線を中心にして一方にフック爪を突設し、同フッ
ク爪の上記任意の線の対称位置にフック穴を設け、上記
任意の線を中心にして一方に位置決めボスを突設し、同
位置決めボスの上記任意の線の対称位置に位置決め穴を
設けたことを特徴とし、きわめてコンパクトな構成で、
従来の不具合点を解消しうる歯付プーリを提供しようと
するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a tooth profile approximately the same as the tooth profile of the toothed belt with a width of about half the width of the toothed belt. A tooth profile part and a collar integrally formed on either one of the width direction of the tooth profile part, and a shaft hole having a required diameter is provided in the center part thereof, and the shaft hole of the other shaft hole is not provided on the other side. A hook claw is projected on one side around an arbitrary line passing through the center, a hook hole is provided at a symmetrical position of the above arbitrary line of the hook claw, and a positioning boss is projected on one side around the arbitrary line. And positioning holes are provided at symmetrical positions of the above-mentioned arbitrary line of the positioning boss.
An object of the present invention is to provide a toothed pulley that can solve the conventional problems.
【0009】[0009]
【作用】本発明は上記したとおり構成され、一対の本発
明による歯付プーリの一方のフック爪を他方のフック穴
に挿着すると同時に一方の位置決めボスを他方の位置決
め穴に挿着し、強固に一体化し位置決めすることでプー
リとしての用途をなす。The present invention is constructed as described above, and one of the pair of toothed pulleys according to the present invention has one hook claw inserted into the other hook hole, and at the same time one positioning boss is inserted into the other positioning hole to make it strong. It is used as a pulley by being integrated with and positioned.
【0010】[0010]
【実施例】本発明の最も好ましい図示実施例について説
明する。図1ないし図3において、(1)は樹脂製歯付
プーリであり、(2)は後記する歯付ベルト(11)の
幅の約2分の1の幅を有する歯、(23)は上記樹脂製
歯付プーリ(1)の外周部に設けた歯形部、(3)は上
記歯形部(23)のいずれか一方に一体的に形成した鍔
部、(4)は上記歯形部(23)の中心部に設けられた
軸穴、(5)は上記軸穴(4)に設けた回り止め、(6
a)及び(6b)は上記鍔部(3)を備えない他の一方
に突設した位置決めボス、(7a)及び(7b)は位置
決め穴、(8)は上記鍔部(3)を備えない他の一方に
突設したフック爪、(9)はフック穴である。回り止め
(5)はキー溝を図示しているが、これは回り止め機能
を有する形状、例えばD字カットやL字カットであれば
形状は限定しないし、又、歯付プーリを用いる機械装置
の仕様によっては回り止め(5)を有さない場合もあ
る。この樹脂製歯付プーリを2個用い、位置決めボス
(6a)が位置決め穴(7a)と、位置決めボス(6
b)が位置決め穴(7b)と、フック爪(8)がフック
穴(9)と挿着しうるように対向させて嵌め合わせるこ
とにより、歯付プーリとして使用できる。位置決めボス
及び位置決め穴を2対と、フック爪及びフック穴を1対
とを図示しているが、数を限定するものではなく、フッ
ク爪及びフック穴を位置決めボス及び位置決め穴のかわ
りに使用することも可能である。このように1対の樹脂
プーリを組み合わせて使用する形状とすることにより、
複数の部品を必要とせず、しかも射出成形にて製作でき
るため、加工工程は1工程となり製作費の低減が計れ
る。しかも本実施例による樹脂製歯付プーリは鍔が一体
であるため、鍔の脱落による機械損傷は有り得ないし、
フック爪及びフック穴により強固に一体化させることが
可能となっている。又、位置決めボス及び位置決め穴に
よって位置ずれをおこし得ないので高精度な歯付プーリ
を形成することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The most preferred embodiment of the present invention will be described. 1 to 3, (1) is a resin toothed pulley, (2) is a tooth having a width of about half the width of a toothed belt (11) described later, and (23) is the above A toothed portion provided on the outer peripheral portion of the resin toothed pulley (1), (3) a flange portion integrally formed with one of the toothed portions (23), and (4) a toothed portion (23). A shaft hole provided in the center of the shaft hole, (5) a rotation stopper provided in the shaft hole (4),
a) and (6b) are positioning bosses projecting from the other without the flange (3), (7a) and (7b) are positioning holes, and (8) is not equipped with the flange (3). A hook claw protruding from the other side, and (9) a hook hole. The detent (5) shows a key groove, but this is not limited to a shape having a detent function, for example, a D-shaped cut or an L-shaped cut, and a mechanical device using a toothed pulley. Depending on the specifications, there may be cases where the detent (5) is not provided. Using two resin toothed pulleys, the positioning boss (6a) has a positioning hole (7a) and a positioning boss (6a).
It can be used as a toothed pulley by fitting the positioning hole (7b) to the positioning hole (7b) and the hook claw (8) so as to face each other so as to be insertable. Although two pairs of positioning bosses and positioning holes and one pair of hook claws and hook holes are illustrated, the number is not limited, and hook claws and hook holes are used instead of the positioning bosses and positioning holes. It is also possible. In this way, by using a pair of resin pulleys in combination,
Since it does not require a plurality of parts and can be manufactured by injection molding, the manufacturing process becomes one process and the manufacturing cost can be reduced. Moreover, since the resin toothed pulley according to the present embodiment has the collar integrally formed, mechanical damage due to the detachment of the collar cannot occur.
The hook claws and hook holes make it possible to integrate them firmly. Further, since the positioning boss and the positioning hole cannot cause the positional deviation, a highly accurate toothed pulley can be formed.
【0011】上記した図1ないし図3に示す実施例は鍔
(3)が突起面(10)の外周より大径に構成してある
が、この鍔(3)の外周面を突起面(10)と同一面に
することもできる。図4ないし図5はこのように鍔
(3)と突起面(10)とを同一面上に構成した実施例
で、図4ないし図5において、樹脂製歯付プーリ(1)
は鍔(3)の高さを歯(2)の突起面(10)と同一面
にしたものである。これにより、鍔(3)により樹脂製
歯付プーリ(1)からの歯付ベルト(11)の脱落防止
機能を有したまま歯付ベルト(11)の外周面を樹脂製
歯付プーリ(1)の鍔(3)の外周面より外側に出すこ
とができるため、歯付ベルト(11)をベルトコンベヤ
ーとして使用することができる。鍔(3)の高さを歯
(2)の突起面(10)と同一面にして図示している
が、これは樹脂製歯付プーリ(1)からの歯付ベルト
(11)の脱落防止機能を有しかつ歯付ベルト(11)
の外周面を鍔(3)の外周面より外側に出すことができ
ればよく、鍔(3)の高さを歯(2)の突起面(10)
と同一面にすることを限定したものではない。In the embodiment shown in FIGS. 1 to 3 described above, the flange (3) has a diameter larger than the outer circumference of the projecting surface (10), but the outer peripheral surface of this flange (3) is the projecting surface (10). ) And the same side. 4 to 5 show an embodiment in which the collar (3) and the projecting surface (10) are formed on the same plane as described above. In FIGS. 4 to 5, the resin toothed pulley (1) is shown in FIG.
The height of the collar (3) is flush with the protruding surface (10) of the tooth (2). As a result, the outer peripheral surface of the toothed belt (11) is kept on the resin toothed pulley (1) while the toothed belt (11) is prevented from coming off from the resin toothed pulley (1) by the collar (3). The toothed belt (11) can be used as a belt conveyor because it can be extended outside the outer peripheral surface of the collar (3). The height of the collar (3) is shown as the same plane as the protruding surface (10) of the tooth (2), but this is to prevent the toothed belt (11) from coming off from the resin toothed pulley (1). Functional and toothed belt (11)
It is sufficient that the outer peripheral surface of the collar can be extended to the outside of the outer peripheral surface of the collar (3), and the height of the collar (3) can be set to the protruding surface (10) of the tooth (2).
It is not limited to be on the same plane as.
【0012】図6は上記した第1、第2実施例の製造に
用いる金型で、型部(12)は樹脂製歯付プーリ(1)
を射出成形により形成する際に用いる金型の型部であ
る。軸部(13)を軸径(14)の異なるものと入れ換
えることにより、任意の軸径(14)に変更することが
できるようになっている。又、樹脂製歯付プーリ(1)
の歯(2)の数が奇数の場合、同一の形状をした樹脂製
歯付プーリ(1)を単に嵌合させてもプーリ歯(2)の
位置が合わなくなる。その際は、歯部(15)を軸部
(13)を中心に180度回転させることにより、勝手
違いのものが形成できる。FIG. 6 shows a mold used for manufacturing the above-mentioned first and second embodiments. The mold part (12) has a resin toothed pulley (1).
It is a mold part of a mold used when forming by injection molding. By replacing the shaft portion (13) with one having a different shaft diameter (14), the shaft diameter can be changed to an arbitrary shaft diameter (14). Also, resin toothed pulley (1)
If the number of the teeth (2) is odd, the pulley teeth (2) will not be aligned even if the resin toothed pulleys (1) having the same shape are simply fitted. In that case, by rotating the tooth portion (15) about the shaft portion (13) by 180 degrees, a different one can be formed.
【0013】[0013]
【発明の効果】本発明による樹脂製歯付プーリは鍔が一
体であるため、鍔の脱落による機械損傷は有り得ない
し、フック爪及びフック穴により強固に一体化させるこ
とが可能となっている。又、位置決めボス及び位置決め
穴によって位置ずれをおこし得ないので高精度な歯付プ
ーリを形成することができる。又、射出成形にて生産す
ることが可能なため加工工数は1工程となり、金属製歯
付プーリの加工工数に比べて極端に少なくなるし仕掛品
を保有する必要も無い。又、高精度な金型を使用するこ
とで仕上り寸法精度も高精度かつ均一なものが生産でき
る。そして樹脂は即時再利用が可能なことと、金型内部
に樹脂溶解用のヒータを設けた廃材を出さない生産方式
を利用できることで、資源の無駄が一切無くなるし、1
つの金型で、各種形状や各種寸法に対応して生産できる
ため、生産コストの大幅な低減になる。又、軽量な樹脂
製のため、回転動力の起動・停止時の負荷は、金属製歯
付プーリに比べ大幅に軽減される。Since the resin toothed pulley according to the present invention has the collar integrally formed, mechanical damage due to the fall of the collar is not possible, and the pulley can be firmly integrated by the hook claw and the hook hole. Further, since the positioning boss and the positioning hole cannot cause the positional deviation, a highly accurate toothed pulley can be formed. Further, since it can be produced by injection molding, the processing man-hour is one step, which is extremely smaller than the processing man-hour of the metal toothed pulley, and it is not necessary to have a work-in-process. Further, by using a highly accurate mold, it is possible to produce a product having a high finished dimension accuracy and a high accuracy. And because the resin can be reused immediately and the production method in which a heater for melting the resin is provided inside the mold to prevent the generation of waste material, there is no waste of resources.
Since one mold can be used for various shapes and various sizes, the production cost can be significantly reduced. Also, because it is made of lightweight resin, the load at the time of starting and stopping the rotational power is greatly reduced compared to the metal toothed pulley.
【図1】本発明の一実施例を示す外観斜視図である。FIG. 1 is an external perspective view showing an embodiment of the present invention.
【図2】図1のA−A’線に沿う嵌合断面図である。FIG. 2 is a fitting cross-sectional view taken along the line A-A ′ in FIG.
【図3】図1のB−B’線に沿う嵌合断面図である。FIG. 3 is a fitting cross-sectional view taken along the line B-B ′ of FIG.
【図4】本発明の他の実施例を示す外観斜視図である。FIG. 4 is an external perspective view showing another embodiment of the present invention.
【図5】図4に示す実施例の使用態様を示す図である。5 is a diagram showing a mode of use of the embodiment shown in FIG. 4. FIG.
【図6】上記各実施例の製造に用いる射出成形用金型の
型部断面図である。FIG. 6 is a cross-sectional view of a mold portion of an injection molding mold used for manufacturing each of the embodiments.
【図7】従来の金属製歯付プーリの外観斜視図である。FIG. 7 is an external perspective view of a conventional metal toothed pulley.
(1) 樹脂製歯付プーリ (2) 歯 (3) 鍔 (4) 軸穴 (5) 回り止め (6a) 位置決めボス (6b) 位置決めボス (7a) 位置決め穴 (7b) 位置決め穴 (8) フック爪 (9) フック穴 (10) 突起 (11) 歯付ベルト (12) 型部 (13) 軸部 (14) 軸径 (15) 歯部 (16) 軸保持部 (17) フック部 (18) 金属製歯付プーリ (19) 金属製歯付プーリの歯 (20) 金属製歯付プーリの鍔取付部 (21) 金属製歯付プーリの軸穴 (22) 金属製歯付プーリの回り止め (23) 歯形部 (1) Resin toothed pulley (2) Teeth (3) Tsuba (4) Shaft hole (5) Rotation stop (6a) Positioning boss (6b) Positioning boss (7a) Positioning hole (7b) Positioning hole (8) Hook Claw (9) Hook hole (10) Protrusion (11) Toothed belt (12) Mold part (13) Shaft part (14) Shaft diameter (15) Tooth part (16) Shaft holding part (17) Hook part (18) Metal toothed pulley (19) Metal toothed pulley tooth (20) Metal toothed pulley flange (21) Metal toothed pulley shaft hole (22) Metal toothed pulley detent ( 23) Tooth profile
Claims (1)
ルトの歯形とほぼ同一の歯形を構成する歯形部と、その
歯形部の幅方向の何れか一方に一体的に形成した鍔を備
え、かつ、その中心部に所要直径の軸穴を設け、上記鍔
を備えない他方に上記軸穴の中心を通る任意の線を中心
にして一方にフック爪を突設し、同フック爪の上記任意
の線の対称位置にフック穴を設け、上記任意の線を中心
にして一方に位置決めボスを突設し、同位置決めボスの
上記任意の線の対称位置に位置決め穴を設けたことを特
徴とする歯付プーリ。1. A tooth profile part having a width approximately one half of the width of the toothed belt and forming a tooth profile substantially the same as the tooth profile of the toothed belt, and integrally formed on either one of the width directions of the tooth profile part. Shaft hole having a required diameter is provided in the center portion thereof, and a hook claw is projected on one side around the arbitrary line passing through the center of the shaft hole on the other side not including the above collar. A hook hole is provided at a symmetrical position of the above arbitrary line of the hook claw, a positioning boss is projected on one side around the arbitrary line, and a positioning hole is provided at a symmetrical position of the arbitrary line of the same positioning boss. A toothed pulley characterized in that
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07071661A JP3139937B2 (en) | 1995-03-29 | 1995-03-29 | Resin toothed pulley |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07071661A JP3139937B2 (en) | 1995-03-29 | 1995-03-29 | Resin toothed pulley |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08270761A true JPH08270761A (en) | 1996-10-15 |
JP3139937B2 JP3139937B2 (en) | 2001-03-05 |
Family
ID=13467021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP07071661A Expired - Fee Related JP3139937B2 (en) | 1995-03-29 | 1995-03-29 | Resin toothed pulley |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3139937B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7789483B2 (en) | 2005-12-28 | 2010-09-07 | Brother Kogyo Kabushiki Kaisha | Carriage driving unit and image recording apparatus |
JP2014147786A (en) * | 2014-02-07 | 2014-08-21 | Universal Entertainment Corp | Game machine |
JP2016093620A (en) * | 2016-02-12 | 2016-05-26 | 株式会社ユニバーサルエンターテインメント | Game machine |
JP2017065823A (en) * | 2015-09-28 | 2017-04-06 | 日立金属株式会社 | Roller for paper sheet separation mechanism and production method of the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6340157B2 (en) * | 2013-04-18 | 2018-06-06 | 株式会社テスコ | Slot machine housing |
-
1995
- 1995-03-29 JP JP07071661A patent/JP3139937B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7789483B2 (en) | 2005-12-28 | 2010-09-07 | Brother Kogyo Kabushiki Kaisha | Carriage driving unit and image recording apparatus |
JP2014147786A (en) * | 2014-02-07 | 2014-08-21 | Universal Entertainment Corp | Game machine |
JP2017065823A (en) * | 2015-09-28 | 2017-04-06 | 日立金属株式会社 | Roller for paper sheet separation mechanism and production method of the same |
JP2016093620A (en) * | 2016-02-12 | 2016-05-26 | 株式会社ユニバーサルエンターテインメント | Game machine |
Also Published As
Publication number | Publication date |
---|---|
JP3139937B2 (en) | 2001-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |