JPH0252963U

JPH0252963U -

Info

Publication number: JPH0252963U
Application number: JP13108788U
Authority: JP
Priority date: 1988-10-06
Filing date: 1988-10-06
Publication date: 1990-04-17

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の各一実施例による
始動電動機の要部断面図、第４図は始動前の従来
の始動電動機の要部断面図、第５図は始動時の従
来の始動電動機の要部断面図である。図中、１…前部機枠、２…開口部、３…延長軸
部（出力回転軸）、４…ピニオン移動筒、４ａ…
ピニオン、４ｂ…摺動支持面、５…スリーブ軸受
、６…軸受、７…オーバーランニングクラツチ装
置、７ａ…クラツチインナ、７ｂ…クラツチアウ
タ、１０…ストツパ、１００，１１０…ブツシユ
、１０９，１０９ｂ…防塵用キヤツプ。なお、図
中同一符号は同一、又は相当部分を示す。 1 to 3 are sectional views of main parts of a starting motor according to an embodiment of the present invention, FIG. 4 is a sectional view of main parts of a conventional starting motor before starting, and FIG. 5 is a sectional view of main parts of a conventional starting motor at starting. FIG. 2 is a cross-sectional view of the main parts of the starting motor. In the figure, 1...front machine frame, 2...opening, 3...extension shaft (output rotating shaft), 4...pinion moving cylinder, 4a...
Pinion, 4b... Sliding support surface, 5... Sleeve bearing, 6... Bearing, 7... Overrunning clutch device, 7a... Clutch inner, 7b... Clutch outer, 10... Stopper, 100, 110... Bush, 109, 109b... Dust-proof cap . Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

An overrunning clutch device is formed on the rear end side, and includes an electric motor that generates rotational force for starting the engine, an overrunning clutch device that is axially slidably supported on an output rotating shaft and has a clutch outer that is spline-engaged with the output rotating shaft. and a clutch inner part constituting the overrunning clutch device, a pinion part having a pinion meshing with the ring gear of the engine on the outer periphery of the front end side, and a clutch inner part formed between the pinion part and the clutch inner part, which is connected to the machine frame. The intermediate part has an outer periphery as a sliding support surface so as to be rotatably supported by a bearing fixed to the bearing and slidable in the axial direction with respect to the bearing, and a pinion moving tube that allows the pinion portion to enter and exit from the front end opening of the machine frame;
A dustproof cap that covers at least a part of the outer periphery of a stopper attached to the front part of the output rotating shaft in front of the pinion moving cylinder is moved by a stepped bush that fits into the inner surface of the pinion moving cylinder from the front. The starter motor is fixed between the bushing and the front end of the cylinder, and the front end of the bush abuts the stopper after the pinion moving cylinder has fully moved forward.