JPH0617517Y2 - Clutch mechanism for differential gear - Google Patents
Clutch mechanism for differential gearInfo
- Publication number
- JPH0617517Y2 JPH0617517Y2 JP1989011614U JP1161489U JPH0617517Y2 JP H0617517 Y2 JPH0617517 Y2 JP H0617517Y2 JP 1989011614 U JP1989011614 U JP 1989011614U JP 1161489 U JP1161489 U JP 1161489U JP H0617517 Y2 JPH0617517 Y2 JP H0617517Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- differential
- differential gear
- gears
- clutch mechanism
- 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 - Lifetime
Links
Landscapes
- Toys (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は主としてラジオコントロールカーの駆動部分な
どに用いられる作動装置用のクラッチ機構に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a clutch mechanism for an actuating device mainly used for a drive part of a radio control car.
（従来の技術） ラジオコントロールカーは不慣れな者が操縦すると障害
物にぶつけ易く、停車状態になると、駆動力が弱ければ
ギアやモータまで停止するので実害は少ないが、強力な
モータやバッテリを使用している場合はギアが破損して
動かなくなってしまうことになる。そのような場合に対
処するため従来はクラッチ装置を動力伝達部に組込むこ
とが行なわれている。(Prior art) A radio control car easily hits obstacles when operated by an unfamiliar person, and when the vehicle is stopped, the gears and motors will stop if the driving force is weak, so there is little damage, but a powerful motor or battery is used. If so, the gear will be damaged and will not move. In order to deal with such a case, conventionally, a clutch device is incorporated in the power transmission unit.
（技術的課題） 前記のようなクラッチ装置は摩擦やかみ合い等を利用し
て動力伝達を断続する方式であり、これを装着するため
にコストが高くなり、かつまた余分なスペースを必要と
するなどの問題を生ずる。(Technical problem) The clutch device as described above is a system that uses friction, meshing, etc. to intermittently transmit power, and the cost is high to mount the clutch device, and an extra space is required. Cause problems.
本考案の目的は前記の問題を解決し、差動装置を部分的
に改良することで、新たなクラッチ装置を設けなくても
動力伝達を断続することができる差動装置用クラッチ機
構を提供することにある。An object of the present invention is to solve the above problems and to partially improve the differential device to provide a clutch mechanism for a differential device that can interrupt power transmission without providing a new clutch device. Especially.
（技術的手段） 前記目的は、差動装置の一対の出力軸と同軸上に配置さ
れ、駆動装置からの駆動力によって回転する歯車に、差
動歯車ケースを一体的に取付け、前記出力軸と直交する
軸回りに回転できかつ出力軸に設けられた傘歯歯車と噛
合する差動歯車を差動歯車ケースに軸支し、傘歯歯車と
差動歯車の噛合力が設定値を越えたときに、差動歯車を
軸方向へ押しのけて傘歯歯車との噛合を外す方向へ弾性
変形可能な可撓部分を差動歯車ケースの軸支部に形成し
たことによって達成される。(Technical Means) The object is to install a differential gear case integrally with a gear that is arranged coaxially with a pair of output shafts of a differential device and that is rotated by a driving force from a drive device, When a differential gear that can rotate around orthogonal axes and that meshes with a bevel gear provided on the output shaft is axially supported by the differential gear case, and the meshing force between the bevel gear and the differential gear exceeds the set value. In addition, a flexible portion which is elastically deformable in a direction in which the differential gear is pushed in the axial direction to be disengaged from the bevel gear is formed in the shaft support portion of the differential gear case.
（実施例） 以下図面を参照して説明すると、各図はラジオコントロ
ールカーＣの駆動部に於る差動装置Ａに関する例示であ
る。差動装置Ａはその出力軸である一対の車軸１、２を
有し、夫々の内方端に接続される傘歯歯車３、４と、こ
れらの歯車３、４と噛合するように差動歯車ケース５に
軸支された一対の差動歯車６、７とを備えており、これ
らの傘歯状の歯車３〜７は三角形状の断面を有する歯形
とし、噛合トルクにより歯車６、７が逃げ易くする。左
右の一対の傘歯歯車３、４は駆動装置10からの駆動力に
よって回転する左右一対の平歯車８、９に対して自由に
回転できるように装着され、差動歯車ケース５は左右の
平歯車８、９と一体に回転するように組立てられてい
る。(Embodiment) Explaining below with reference to the drawings, each drawing is an example of a differential device A in a drive portion of a radio control car C. The differential device A has a pair of axles 1 and 2 that are its output shafts, and a bevel gear 3 and 4 connected to the inner ends of each of them, and a differential gear so as to mesh with these gears 3 and 4. The gear case 5 is provided with a pair of differential gears 6 and 7, which are axially supported. The bevel gears 3 to 7 have a tooth shape having a triangular cross section, and the gears 6 and 7 are engaged by a meshing torque. Make it easier to escape. The pair of left and right bevel gears 3 and 4 are mounted so as to be freely rotatable with respect to the pair of left and right spur gears 8 and 9 which are rotated by the driving force from the drive unit 10. It is assembled so as to rotate integrally with the gears 8 and 9.
11は右平歯車８の軸心外方へ突設された右傘歯歯車３の
軸支筒、12は左平歯車９に同様に突設された左傘歯歯車
４の軸受筒、13は右平歯車８の内面側に設けられた台
部、14は台部13に形成された、右傘歯歯車取付用の開
口、151、152は同じく台部13に、それから車軸方向に向
けて突設された一対の結合軸、161、162は各結合軸を嵌
合させるため差動歯車ケース５に形成された嵌合項、17
1、172は各結合軸へ止めねじ18ねじ止めするため左平歯
車９に設けた小孔、19には左右の傘歯歯車の先端支持の
ためケース両面の中心に設けた突軸を示す。Reference numeral 11 denotes a shaft support tube of the right bevel gear 3 protruding outward from the axis of the right spur gear 8, 12 denotes a bearing tube of the left bevel gear 4 similarly protruding to the left spur gear 9, and 13 denotes A base portion provided on the inner surface side of the right spur gear 8, 14 is an opening formed in the base portion 13 for mounting the right bevel gear, and 15 1 and 15 2 are also directed to the base portion 13 and then toward the axle direction. A pair of coupling shafts 16 1 and 16 2 projecting from the differential gear case 5 for fitting the coupling shafts to each other.
Reference numerals 1 and 17 2 denote small holes formed in the left spur gear 9 for screwing a set screw 18 to each coupling shaft, and 19 denotes a protruding shaft provided at the center of both sides of the case for supporting the tips of the left and right bevel gears. .
前記差動歯車６、７は車軸と直交する軸回りに自由に回
転できるように、支軸21、22によって差動歯車ケース５
の軸支部23、24に軸支されている。差動歯車ケース５の
差動歯車３、４の左右の部分には補強用のリブ片25…が
形成されており、一方差動歯車６、７の軸支部付近は肉
抜き部26…が形成されているので、軸支部23、24の部分
は他の部分より撓み易い可撓部分27、28となっており、
トルクが設定値を越えると半径方向の外方へ撓むことで
傘歯歯車３、４との噛合が外れるように構成されている
（第２図、第３図）。The differential gears 6 and 7 are freely rotated about an axis orthogonal to the axle so that the differential gear case 5 is supported by the support shafts 21 and 22.
Is rotatably supported by the rotatably supporting portions 23 and 24. Reinforcing rib pieces 25 are formed on the left and right portions of the differential gears 3 and 4 of the differential gear case 5, while thinned portions 26 are formed near the shaft supporting portions of the differential gears 6 and 7. Therefore, the portions of the shaft support portions 23, 24 are flexible portions 27, 28 which are easier to bend than other portions,
When the torque exceeds the set value, the bevel gears 3 and 4 are disengaged by bending outward in the radial direction (Figs. 2 and 3).
なお、駆動装置10からの駆動力を受ける平歯車を２個設
けたのは、２段変速のためであり、駆動装置の出力ギア
29と両平歯車８、９とを結合する歯車組30は、出力ギア
29と常に噛合し軸34上をスライドするスライドギア31
と、その両側へ同軸に設けられた変速ギア32、33から成
り、スライドギア31をスライドさせるレバー25によって
操作される。また36は出力軸である車軸１、２の内端部
に夫々設けた継手、37はそれと係合する相手の継手で各
傘歯歯車３、４の外端部に形成されており、回転を駆動
車輪20に伝達する。38は操舵輪を示す。The two spur gears that receive the driving force from the drive unit 10 are provided for the purpose of two-speed shifting, and the output gear of the drive unit is not provided.
The gear set 30 that connects 29 and the spur gears 8 and 9 is an output gear.
Slide gear 31 that always meshes with 29 and slides on shaft 34
And shift gears 32 and 33 coaxially provided on both sides thereof, and operated by a lever 25 for sliding a slide gear 31. Further, 36 is a joint provided on the inner end of each of the axles 1 and 2 which are output shafts, and 37 is a mating joint to be engaged with the axle, which is formed on the outer end of each bevel gear 3, 4 for rotation. Transmission to the drive wheel 20. 38 indicates a steering wheel.
（作用） このような構成に於て、駆動装置10を作動させると、ス
ライドギア29、変速歯車組30、平歯車８、９のいずれ
か、作動装置Ａ及び出力軸である車軸１、２へ回転が伝
達され、駆動車輪20を回転させてラジオコントロールカ
ーＣを走行させることができ、操舵輪38の変向によって
カーブ走行をするときは差動歯車６、７が回転して円滑
にカーブを通過させることができる。つまり通常走行の
場合は、本案機構は何の働らきもせず、動力を無駄なく
伝達する。(Operation) In such a structure, when the drive device 10 is operated, any one of the slide gear 29, the transmission gear set 30, and the spur gears 8 and 9 is moved to the operation device A and the axles 1 and 2 which are the output shafts. The rotation is transmitted, the drive wheel 20 can be rotated to drive the radio control car C, and when the steering wheel 38 is deflected to make a curve, the differential gears 6 and 7 rotate to smoothly turn the curve. Can be passed. In other words, in normal traveling, the mechanism of the present invention does not work and transmits power without waste.
ところがラジオコントロールカーＣが障害物に当り強制
的に停止させられた状態になると、駆動力が強力な場合
瞬間的にいずれかのギアに動力が集中しこれを破壊する
ことになる。本考案によれば差動歯車６、７を軸支した
差動歯車ケース５の弾性変形可能な可撓部分27、28が形
成されているため、出力軸への伝達トルクが設定値を上
回ると差動歯車６、７が軸方向外方へ逃げて歯車ケース
５を第２図に示すように変形させ、傘歯歯車３、４との
噛合が外れる。故に最早や動力の伝達は行なわれずギヤ
を破損させる事態にも到らない。However, when the radio control car C hits an obstacle and is forcibly stopped, if the driving force is strong, the power momentarily concentrates on one of the gears and destroys it. According to the present invention, since the elastically deformable flexible portions 27 and 28 of the differential gear case 5 supporting the differential gears 6 and 7 are formed, when the torque transmitted to the output shaft exceeds the set value. The differential gears 6 and 7 escape outward in the axial direction to deform the gear case 5 as shown in FIG. 2 and disengage from the bevel gears 3 and 4. Therefore, the power is no longer transmitted and the gear is not damaged.
（効果） 従って本考案によれば、歯車ケース５の軸支部を弾性変
形させることによって動力伝達歯車の噛み合いを外し、
滑りを生じさせることができるから、急激なトルク上昇
が起こってもギア類を破損させることがなく、保護でき
る効果を発揮する。従って十分強力な駆動装置を搭載す
ることができる。しかも本考案の機構は差動歯車ケース
の改造によって実施することができ、従来のクラッチの
ように新たな装置を製造したり、組込んだりする必要が
ないものであるから実施が容易で、余分なスペースの必
要も起こらず非常に顕著な効果を奏する。(Effect) Therefore, according to the present invention, the shaft support portion of the gear case 5 is elastically deformed to disengage the meshing of the power transmission gear,
Since slippage can be caused, gears are not damaged even if a rapid torque increase occurs, and a protective effect is exerted. Therefore, a sufficiently powerful drive device can be mounted. Moreover, the mechanism of the present invention can be implemented by modifying the differential gear case, and there is no need to manufacture or install a new device unlike the conventional clutch, so that the mechanism is easy to implement and no extra equipment is required. It does not require a large space and has a very remarkable effect.
図面は本考案の実施例を示すもので、第１図は分解斜視
図、第２図は出力軸線上から見たクラッチ機構の正面
図、第３図は第２図中央部の部分断面図、第４図は本案
機構を組込んだラジオコントロールカーの斜視図であ
る。 １、２……出力軸である車軸、３、４……傘歯歯車、５
……差動歯車ケース、６、７……差動歯車、８、９……
平歯車、10……駆動装置、21、22……差動歯車の支軸、2
3、24……差動歯車の軸支部、27、28……可撓部分。1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a front view of a clutch mechanism seen from the output axis, and FIG. 3 is a partial sectional view of a central portion of FIG. FIG. 4 is a perspective view of a radio control car incorporating the mechanism of the present invention. 1, 2 ... Axle as output shaft, 3, 4 ... Bevel gear, 5
...... Differential gear case, 6, 7 ...... Differential gear, 8, 9 ……
Spur gears, 10 …… Drive device, 21,22 …… Spindle for differential gears, 2
3, 24 …… Differential gear shaft support, 27, 28 …… Flexible parts.
Claims (2)
れ、駆動装置からの駆動力によって回転する歯車に差動
歯車ケースを一体的に取付け、前記出力軸と直交する軸
回りに回転できかつ出力軸に設けられた傘歯歯車と噛合
する差動歯車を差動歯車ケースに軸支し、傘歯歯車と差
動歯車の噛合力が設定値を越えたときに、差動歯車を軸
方向へ押しのけて傘歯歯車との噛合を外す方向へ弾性変
形可能な可撓部分を差動歯車ケースの軸支部に形成した
ことを特徴とする差動装置用クラッチ機構。1. A differential gear case is integrally mounted on a gear which is arranged coaxially with a pair of output shafts of a differential gear and which is rotated by a driving force from a driving device, and is arranged around an axis orthogonal to the output shaft. A differential gear that is rotatable and meshes with a bevel gear provided on the output shaft is axially supported by a differential gear case, and when the meshing force between the bevel gear and the differential gear exceeds a set value, the differential gear A clutch mechanism for a differential device, wherein a flexible portion that is elastically deformable in a direction to disengage from the bevel gear is disengaged in the axial direction and is formed in the shaft supporting portion of the differential gear case.
ため断面略三角形状の歯形を有する請求項第１項記載の
差動装置用クラッチ機構。2. The clutch mechanism for a differential device according to claim 1, wherein the bevel gear and the differential gear have a tooth shape with a substantially triangular cross section for facilitating disengagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011614U JPH0617517Y2 (en) | 1989-02-02 | 1989-02-02 | Clutch mechanism for differential gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011614U JPH0617517Y2 (en) | 1989-02-02 | 1989-02-02 | Clutch mechanism for differential gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102297U JPH02102297U (en) | 1990-08-14 |
| JPH0617517Y2 true JPH0617517Y2 (en) | 1994-05-11 |
Family
ID=31220324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989011614U Expired - Lifetime JPH0617517Y2 (en) | 1989-02-02 | 1989-02-02 | Clutch mechanism for differential gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617517Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160050284A (en) * | 2014-10-29 | 2016-05-11 | (주)헤네스 | Driving module for motor-driven car for children |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921165U (en) * | 1982-07-30 | 1984-02-08 | いすゞ自動車株式会社 | differential gear |
| JP2508779B2 (en) * | 1987-12-28 | 1996-06-19 | 日本板硝子株式会社 | Method for forming tin oxide thin film on glass substrate surface |
-
1989
- 1989-02-02 JP JP1989011614U patent/JPH0617517Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160050284A (en) * | 2014-10-29 | 2016-05-11 | (주)헤네스 | Driving module for motor-driven car for children |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02102297U (en) | 1990-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |