JPH0142200Y2 - - Google Patents
Info
- Publication number
- JPH0142200Y2 JPH0142200Y2 JP1981168230U JP16823081U JPH0142200Y2 JP H0142200 Y2 JPH0142200 Y2 JP H0142200Y2 JP 1981168230 U JP1981168230 U JP 1981168230U JP 16823081 U JP16823081 U JP 16823081U JP H0142200 Y2 JPH0142200 Y2 JP H0142200Y2
- Authority
- JP
- Japan
- Prior art keywords
- worm wheel
- wheel
- resin
- spring
- counter
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 239000002184 metal Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Gears, Cams (AREA)
- Toys (AREA)
- Gear Transmission (AREA)
Description
【考案の詳細な説明】
本考案は、カウンターの改良に関するものであ
る。[Detailed Description of the Invention] The present invention relates to an improvement of a counter.
従来のカウンターにおいては、例えば第１図に
示した如く、フレーム１の側壁間に横架された支
軸２に回転可能に装架された複数個の数字輪３及
びウオームホイール４の軸方向のガタを押えるた
めに、金属製のコイルバネ５をフレーム１の一方
の側壁と最端の数字輪３との間に位置するように
して支軸２に巻装し数字輪３及びウオームホイー
ル４を他方の側壁の方へ弾圧するようにしていた
が、コイルバネ５自身を単一の部品として別に形
成しなければならないため部品点数が多くなり、
組立工数も多くなるという問題があつた。 In a conventional counter, for example, as shown in FIG. 1, a plurality of number wheels 3 and a worm wheel 4 are rotatably mounted on a support shaft 2 horizontally suspended between the side walls of a frame 1. In order to suppress play, a metal coil spring 5 is wound around the support shaft 2 so as to be located between one side wall of the frame 1 and the outermost number ring 3, and the number ring 3 and the worm wheel 4 are attached to the other side. However, since the coil spring 5 itself has to be separately formed as a single component, the number of parts increases.
There was a problem that the number of assembly steps would increase.
本考案は、上記問題点に鑑み、ウオームホイー
ル又はウオームホイールに隣接する数字輪に数字
輪を軸方向に弾圧し得るバネを一体形成すること
により部品点数及び組立工数の削減を実現したカ
ウンターを提供せんとするものであるが、以下第
２図乃至第５図に示した一実施例に基づきこれを
説明すれば、本実施例は数字輪とその歯車部又は
ウオームホイールとが半固定的に連結される方式
のカウンターであり、１４は支軸２に回転可能に
装架された合成樹脂製のウオームホイールであつ
て、数字輪３と対向する端部には、先端に径方向
に突出した突起１４a′を有し且つ径方向に揺動可
能であつてそれ自身の弾力により該突起１４a′が
数字輪３の内歯３ｂとクリツク的に嵌合する一対
の樹脂バネ１４ａと、先端に軸方向に突出した突
起１４b′を有し且つ軸方向に揺動可能であつてそ
れ自身の弾力により該突起１４b′が数字輪３の端
面に圧接する他の一対の樹脂バネ１４ｂとが一体
形成されている。尚、他の数字輪３とその歯車部
３ａは、上記と同様に、数字輪３に設けられた内
歯と歯車部３ａに設けられた径方向に揺動可能な
樹脂バネの突起との係合により半固定的に連結さ
れている。又、上記樹脂バネ１４ｂの弾圧力が数
字輪３の内歯３ｂとウオームホイール１４の樹脂
バネ１４ａの突起１４a′との係合により生じる軸
方向の摩擦力よりも樹脂バネ１４ｂの弾圧力の方
が大きくなるように選定されている。従つて、本
考案によれば、数字輪３を軸方向に弾圧し得る樹
脂バネ１４ｂがウオームホイール１４に一体形成
されているので、部品点数及び組立工数が削減さ
れる。 In view of the above problems, the present invention provides a counter that realizes a reduction in the number of parts and assembly man-hours by integrally forming a spring capable of compressing the number wheel in the axial direction on the worm wheel or the number ring adjacent to the worm wheel. However, this will be explained below based on an embodiment shown in FIGS. 2 to 5. In this embodiment, the number wheel and its gear portion or worm wheel are semi-fixedly connected. 14 is a worm wheel made of synthetic resin that is rotatably mounted on the support shaft 2, and the end facing the number wheel 3 has a protrusion projecting in the radial direction at the tip. A pair of resin springs 14a have a projection 14a' and are movable in the radial direction, and the projection 14a' is click-fitted with the inner teeth 3b of the number ring 3 by its own elasticity, and a pair of resin springs 14a have an axially The resin spring 14b is integrally formed with another pair of resin springs 14b, which have a protrusion 14b' protruding from the top and are swingable in the axial direction, and the protrusion 14b' comes into pressure contact with the end face of the number ring 3 by its own elasticity. There is. In addition, the other number ring 3 and its gear part 3a are similar to the above, due to the engagement between the internal teeth provided on the number ring 3 and the protrusion of the resin spring provided on the gear part 3a that is swingable in the radial direction. They are semi-fixedly connected by fitting. Further, the elastic force of the resin spring 14b is greater than the axial frictional force generated by the engagement between the inner teeth 3b of the number ring 3 and the protrusion 14a' of the resin spring 14a of the worm wheel 14. is selected so that it is large. Therefore, according to the present invention, the resin spring 14b capable of pressing the number ring 3 in the axial direction is integrally formed with the worm wheel 14, so that the number of parts and the number of assembly steps are reduced.
第６図及び第７図は、他の実施例即ち数字輪と
その歯車部が一体化され且つウオームホイールと
それに隣接する数字輪が分離されている方式のカ
ウンターに本考案を適用した例を示しており、２
４は支軸２に回転可能に装架され且つ図示しない
ピニオンと噛合し得る歯車部２４ａが設けられた
合成樹脂製のウオームホイールであつて、数字輪
２３と対向する端部には上記樹脂バネ１４ｂと同
じ構造の一対の樹脂バネ２４ｂが一体形成されて
いる。２５は一端がフレーム１に固定され且つ他
端が数字輪２３の歯車部２３ａとウオームホイー
ル２４の樹脂バネ２４ｂとの間に介置せしめられ
た軟性で滑性を有するスペーサーであつて、数字
輪２３がウオームホイール２４に対して自由に回
転することを保障するものである。 FIGS. 6 and 7 show an example in which the present invention is applied to another embodiment, that is, a counter in which the number wheel and its gear portion are integrated, and the worm wheel and the adjacent number wheel are separated. 2
4 is a worm wheel made of synthetic resin that is rotatably mounted on the support shaft 2 and provided with a gear portion 24a that can mesh with a pinion (not shown); A pair of resin springs 24b having the same structure as 14b are integrally formed. 25 is a soft and slippery spacer whose one end is fixed to the frame 1 and whose other end is interposed between the gear part 23a of the number wheel 23 and the resin spring 24b of the worm wheel 24; 23 to ensure free rotation relative to the worm wheel 24.
尚、上記両実施例はいずれも樹脂バネをウオー
ムホイールに一体形成しているが、ウオームホイ
ールに隣接する数字輪に樹脂バネを一体形成して
も良い。 In both of the above embodiments, the resin spring is integrally formed with the worm wheel, but the resin spring may be integrally formed with the number ring adjacent to the worm wheel.
上述の如く、本考案によるカウンターは、数字
輪を軸方向に弾圧し得るバネがウオームホイール
又はウオームホイールに隣接する数字輪に一体形
成されているので、部品点数及び組立工数が削減
されるという利点を有している。 As mentioned above, the counter according to the present invention has the advantage that the number of parts and the number of assembly steps are reduced because the spring capable of compressing the number wheel in the axial direction is integrally formed with the worm wheel or the number ring adjacent to the worm wheel. have.
第１図は従来のカウンターの要部を示す垂直断
面図、第２図は本考案によるカウンターの一実施
例の要部を示す垂直断面図、第３図は上記実施例
のウオームホイールの側面図、第４図及び第５図
は夫々第３図−線及び−線に沿う断面
図、第６図は他の実施例の要部を示す垂直断面
図、第７図は上記他の実施例のウオームホイール
の側面図である。
１……フレーム、２……支軸、３……数字輪、
１４……ウオームホイール、１４ｂ……樹脂バ
ネ。
Fig. 1 is a vertical sectional view showing the main parts of a conventional counter, Fig. 2 is a vertical sectional view showing the main parts of an embodiment of the counter according to the present invention, and Fig. 3 is a side view of the worm wheel of the above embodiment. , FIG. 4 and FIG. 5 are sectional views taken along lines - and -, respectively in FIG. 3, FIG. 6 is a vertical sectional view showing the main parts of another embodiment, and FIG. It is a side view of a worm wheel. 1... Frame, 2... Support shaft, 3... Number wheel,
14... Worm wheel, 14b... Resin spring.
Claims (1)
のウオームホイール又はウオームホイール１４に
隣接する数字輪に一体成形により形成して成るカ
ウンター。 A counter in which a spring capable of compressing the number wheel in the axial direction is formed integrally with a synthetic resin worm wheel or a number wheel adjacent to the worm wheel 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16823081U JPS5876956U (en) | 1981-11-13 | 1981-11-13 | counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16823081U JPS5876956U (en) | 1981-11-13 | 1981-11-13 | counter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5876956U JPS5876956U (en) | 1983-05-24 |
| JPH0142200Y2 true JPH0142200Y2 (en) | 1989-12-11 |
Family
ID=29960283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16823081U Granted JPS5876956U (en) | 1981-11-13 | 1981-11-13 | counter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5876956U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725327Y2 (en) * | 1978-04-12 | 1982-06-01 |
-
1981
- 1981-11-13 JP JP16823081U patent/JPS5876956U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5876956U (en) | 1983-05-24 |
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