JPH0236145Y2 - - Google Patents
Info
- Publication number
- JPH0236145Y2 JPH0236145Y2 JP14910984U JP14910984U JPH0236145Y2 JP H0236145 Y2 JPH0236145 Y2 JP H0236145Y2 JP 14910984 U JP14910984 U JP 14910984U JP 14910984 U JP14910984 U JP 14910984U JP H0236145 Y2 JPH0236145 Y2 JP H0236145Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- conical surface
- spring
- central shaft
- force
- 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 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は時計の輪列などに用いられるスリツプ
機構に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a slip mechanism used in a watch train, etc.
従来より時計の輪列機構には第６図に示される
ようなスリツプ機構が設けてある。このスリツプ
機構は歯車１０にこの歯車と一体にかつ対称位置
関係に一対のアーム１１，１１を形成し、このア
ームの径方向の弾性力によつて軸１２を摩擦的に
挾持させたものである。しかしながらこのスリツ
プ機構は、歯車のアーム間に軸を圧入するため、
歯車が変形しやすく、回転時に振れが生じやすい
という欠点があつた。またスリツプ機構のスリツ
プトルクはアームのバネ力によるため、アームを
あまり小型にできず、小径の歯車のスリツプ機構
には用いることができなかつた。
2. Description of the Related Art Conventionally, a wheel train mechanism of a timepiece has been provided with a slip mechanism as shown in FIG. This slip mechanism has a pair of arms 11, 11 formed integrally and symmetrically with the gear 10, and a shaft 12 is frictionally clamped by the elastic force of the arms in the radial direction. . However, this slip mechanism press-fits the shaft between the arms of the gear, so
The disadvantage was that the gears were easily deformed and tended to run out during rotation. In addition, since the slip torque of the slip mechanism depends on the spring force of the arm, the arm cannot be made very compact, and it cannot be used in a slip mechanism for small-diameter gears.
本考案は心軸と歯車との一方に円錐面を、その
他方に円錐面と軸方向に対向する対接面を設け円
錐面と対接面との間に径方向に弾性を有するバネ
を設けたものである。
In this invention, a conical surface is provided on one side of the core shaft and the gear, and an opposing surface that faces the conical surface in the axial direction is provided on the other side, and a spring that has elasticity in the radial direction is provided between the conical surface and the opposing surface. It is something that
中心軸と歯車との結合のとき、圧入しないため
歯車の変形がなく、歯車が振れることはない。ま
たバネは別部材であるため、小径の歯車を用いた
スリツプ機構にも適用できる。さらに円錐面の傾
斜角を考慮することにより、スリツプトルクの大
きいものから小さいものまで対応できる。
When connecting the central shaft and gear, there is no press fit, so there is no deformation of the gear, and the gear does not swing. Furthermore, since the spring is a separate member, it can also be applied to a slip mechanism using small-diameter gears. Furthermore, by considering the inclination angle of the conical surface, it is possible to handle slip torques ranging from large to small.
第１〜３図において、中空の中心軸１は金属や
合成樹脂などから形成してあり、外周に突設した
つば部１ａには円錐面１ｂが形成してある。円錐
面１ｂは中心軸１の軸心を中心とし、本実施例で
は傾斜角は軸心に対し45度である。中心軸１の端
部は圧入部１ｃとなつており、支持部材２が圧入
固定されている。支持部材２は合成樹脂などから
形成され、支持軸部２ａおよびハートカム部２ｂ
が形成してある。支持軸部２ａは中心軸１と同一
中心に形成してあり、歯車３の中止孔３ａが嵌合
しており、歯車３が回転自在に支持されている。
歯車３は金属、合成樹脂などから形成されており
対接面３ｂは中心軸１の円錐面１ｂと軸方向に対
向している。円錐面１ｂと対接面３ｂとの間に、
径方向に弾性を有するバネ４が取付けてある。バ
ネ４はバネ鋼やリン青銅などのバネ線より形成さ
れ、基部４ａ、弾接部４ｂ，４ｂ、挿入部４ｃ，
４ｃが形成してある。
In FIGS. 1 to 3, a hollow central shaft 1 is made of metal, synthetic resin, etc., and a conical surface 1b is formed on a flange portion 1a that projects from the outer periphery. The conical surface 1b is centered on the axis of the central axis 1, and in this embodiment, the inclination angle is 45 degrees with respect to the axis. The end of the central shaft 1 is a press-fitting part 1c, into which the support member 2 is press-fitted and fixed. The support member 2 is made of synthetic resin or the like, and includes a support shaft portion 2a and a heart cam portion 2b.
is formed. The support shaft portion 2a is formed coaxially with the central axis 1, and the stop hole 3a of the gear 3 is fitted therein, so that the gear 3 is rotatably supported.
The gear 3 is made of metal, synthetic resin, or the like, and its contact surface 3b faces the conical surface 1b of the central shaft 1 in the axial direction. Between the conical surface 1b and the opposing surface 3b,
A spring 4 having elasticity in the radial direction is attached. The spring 4 is formed from a spring wire such as spring steel or phosphor bronze, and includes a base portion 4a, elastic contact portions 4b, 4b, an insertion portion 4c,
4c is formed.
このスリツプ機構の組立は、支持部材２の支持
軸部２ａに歯車３の中心孔３ａを嵌合させ、支持
部材２を中心軸１の圧入部１ｃに圧入する。そし
て中心軸１の円錐面１ｂと歯車３の対接面３ｂと
の間にバネ４を挿入部４ｃ，４ｃ側より取付け、
弾接部４ｂ，４ｂを円錐面１ｂに弾接させる。こ
の組立のとき、歯車３は圧されないため、変形す
ることはなく、回転して振れを生じることはな
い。バネ４のバネ力ｆは、第３図示のように円錐
面１ｂに垂直な分力f1と、対接面３ｂに垂直な分
力f2とに分けられる。分力f1はバネ力ｆと等しく
分力f2はバネ力ｆの約1.4倍である。 To assemble this slip mechanism, the support shaft portion 2a of the support member 2 is fitted into the center hole 3a of the gear 3, and the support member 2 is press-fitted into the press-fit portion 1c of the center shaft 1. Then, a spring 4 is attached between the conical surface 1b of the central shaft 1 and the opposing surface 3b of the gear 3 from the insertion portions 4c, 4c side,
The elastic contact portions 4b, 4b are brought into elastic contact with the conical surface 1b. Since the gear 3 is not pressed during this assembly, it will not be deformed and will not rotate and run out. The spring force f of the spring 4 is divided into a component force f 1 perpendicular to the conical surface 1b and a component force f 2 perpendicular to the contact surface 3b, as shown in the third diagram. The component force f 1 is equal to the spring force f, and the component force f 2 is approximately 1.4 times the spring force f.
第４図は中心軸１の軸心に対し、円錐面１ｃの
傾斜角度が30度の場合を示し、バネ４のバネ力が
同じ場合には分力f3はバネ力ｆの約1.15倍、分力
f4はバネ力ｆの約0.58倍となり、第３図示の実施
例より小さいスリツプトルクとすることができ
る。 Fig. 4 shows a case where the inclination angle of the conical surface 1c is 30 degrees with respect to the axis of the central axis 1, and when the spring force of the spring 4 is the same, the component force f3 is approximately 1.15 times the spring force f. component force
f 4 is approximately 0.58 times the spring force f, and the slip torque can be smaller than that of the embodiment shown in the third figure.
第５図の実施例は、中心軸の軸心に対し円錐面
１ｄの傾斜角度が60度の場合を示し、バネ４のバ
ネ力が同じ場合には分力f5はバネ力ｆの２倍、分
力f6はバネ力ｆの1.73倍となり、第３図示の実施
例より大きいスリツプトルクを得ることができ
る。 The embodiment shown in FIG. 5 shows a case where the inclination angle of the conical surface 1d with respect to the axis of the central axis is 60 degrees, and when the spring force of the spring 4 is the same, the component force f 5 is twice the spring force f. , the component force f 6 is 1.73 times the spring force f, making it possible to obtain a larger slip torque than the embodiment shown in the third figure.
なお前述の実施例では中心軸に円錐面を形成し
たが、歯車に円錐面を形成することもできるとと
もに、対接面も円錐面に形成してもよい。 In the above-described embodiments, the central axis is formed with a conical surface, but the gear may be formed with a conical surface, and the opposing surface may also be formed with a conical surface.
本考案によれば、歯車に圧入による変形が生じ
ることがなく、歯車の振れが生じない。また小径
の歯車の場合にも適用できる。円錐面の傾斜角度
を考慮することにより、スリツプトルクを変更す
ることができる。
According to the present invention, the gear is not deformed due to press fitting, and the gear does not run out. It can also be applied to small diameter gears. The slip torque can be changed by considering the inclination angle of the conical surface.
第１図は本考案の一実施例の正面図、第２図は
第１図−線断面図、第３図は要部拡大断面
図、第４〜５図はそれぞれ他の実施例の要部拡大
断面図、第６図は従来例の正面図である。
１……中心軸、１ｂ，１ｃ，１ｄ……円錐面、
２……支持部材、２ａ……支持軸部、３……歯
車、３ａ……支持孔、３ｂ……対接面。
Fig. 1 is a front view of one embodiment of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is an enlarged sectional view of main parts, and Figs. 4 and 5 are main parts of other embodiments. The enlarged sectional view and FIG. 6 are front views of the conventional example. 1... Central axis, 1b, 1c, 1d... Conical surface,
2... Support member, 2a... Support shaft portion, 3... Gear, 3a... Support hole, 3b... Opposing surface.
Claims (1)
た歯車とを設け、 上記中心軸と上記歯車との一方には、上記中心
軸の軸心を中心とする円錐面が形成してあり、 その他方には上記円錐面と軸方向に対向する対
接面が形成してあり、 上記円錐面と上記対接面との間に、径方向に弾
性を有するバネを取付けたことを特徴とするスリ
ツプ機構。[Claims for Utility Model Registration] A central shaft and a gear rotatably attached to the central shaft are provided, and one of the central shaft and the gear has a conical shape centered on the axis of the central shaft. A surface is formed on the other side, and a contact surface facing the conical surface in the axial direction is formed on the other side, and a spring having elasticity in the radial direction is provided between the conical surface and the contact surface. A slip mechanism characterized by being attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14910984U JPH0236145Y2 (en) | 1984-10-02 | 1984-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14910984U JPH0236145Y2 (en) | 1984-10-02 | 1984-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6165379U JPS6165379U (en) | 1986-05-06 |
| JPH0236145Y2 true JPH0236145Y2 (en) | 1990-10-02 |
Family
ID=30707297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14910984U Expired JPH0236145Y2 (en) | 1984-10-02 | 1984-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236145Y2 (en) |
-
1984
- 1984-10-02 JP JP14910984U patent/JPH0236145Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6165379U (en) | 1986-05-06 |
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