Starter
A technology for starters and electric motors, which is applied to the starting of engines, engine components, and starting devices with mechanical power storage, etc., which can solve problems such as starter damage, inability to push out pinions in the axial direction, and poor starting of engines, etc., to achieve The effect of preventing shedding
Active Publication Date: 2020-08-28
MITSUBISHI ELECTRIC CORP
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- Abstract
- Description
- Claims
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AI Technical Summary
Problems solved by technology
[0005] However, in the conventional starter described above, sometimes the pinion gear is not pushed back quickly after the engine is started, but the ring gear and the pinion gear remain meshed, thereby being in a so-called overrunning state in which the motor rotates excessively due to the rotation of the engine. , in this case, an excessive centrifugal force acting radially outward of the output shaft acts on the retaining ring engaged with the output shaft. If the centrifugal force exceeds the fixing force of the retaining ring, the retaining ring will expand The way is deformed and falls off from the groove of the output shaft, so that the pressed part is in the so-called fall-off state that can move in the axial direction of the output shaft
As a result, when the engine is started again, the shift lever cannot axially push out the pinion gear integrated with the output shaft, resulting in poor starting of the engine
[0006] Or, if the pinion cannot be disengaged from the ring gear after the engine is started, and the ring gear and the pinion are still meshed, the starter will be damaged due to overrunning
In the above-mentioned conventional starters, there is a problem in securing reliability
Method used
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Embodiment approach 1
[0024] Hereinafter, the present invention will be described with reference to the drawings of the embodiments.
[0025] figure 1 is a sectional view showing the starter according to Embodiment 1 of the present invention, figure 2 yes means figure 1 An enlarged sectional view of the main part of the starter, image 3 Viewed from the ring gear side figure 2 A diagram of the main parts of the starter, Figure 4 It is a perspective view which shows the pressed body which is the main part of the starter which concerns on Embodiment 1 of this invention.
[0026] exist figure 1 Among them, the starter 1 includes: a pinion 2, which transmits rotational force to a ring gear (not shown) for starting the engine; an output shaft 3, on which the pinion 2 is arranged at the front end of the output shaft 3 ; the electromagnetic switch 4, the electromagnetic switch 4 generates the thrust used to make the pinion 2 mesh with the ring gear; the shift lever 5, the shift lever 5 transmits ...
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A starter is provided. The purpose of the starter is to solve the following technical problem without increasing the number of components of the starter and the total length of the starter: the retaining ring that is engaged with the output shaft is deformed by the centrifugal force. The starter includes a first pressed body having a flat portion that abuts against the shift lever, and a pluralityof claw portions, the plurality of claw portions being located on the collar side in the axial direction of the flat portion And facing the outer peripheral surface of the retaining ring, the front end surface of the claw portion facing the outer peripheral surface of the retaining ring is axially overlapped with the outer peripheral surface of the retaining ring, and the plurality of opposing claw portions are opposed The front end surface is formed to have a smaller size than the outer circumference of the retaining ring required to attach the retaining ring to the groove portion of the output shaft.
Description
technical field [0001] The present invention relates to a starter, the pinion gear is pushed out by a shift lever so that the pinion gear meshes with the ring gear of the engine, so as to start the engine. Background technique [0002] In the existing starters of this kind, the following structure is mostly adopted: the shift lever is swung by the force of the electromagnetic switch suction plunger, and the pinion integrally arranged with the output shaft is pushed out axially by the swing of the shift lever, thereby The pinion is meshed with a ring gear connected to the engine, the ring gear is rotated by the rotation of the pinion to start the engine, and the pinion is disengaged from the ring gear after the engine is started. [0003] Here, a pressed portion is formed on the output shaft to receive the pressing force generated by the swing of the shift lever, and a retaining ring is fitted on the output shaft in order to limit the axial movement of the pressed portion rel...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F02N15/06
CPCF02N15/065F16B21/186F16B43/02
Inventor 伊藤祐
Owner MITSUBISHI ELECTRIC CORP