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Gear motor and automatic opening and closing unit

A gear motor, motor technology, applied in the direction of components with teeth, belts/chains/gears, electrical components, etc., can solve the problems of the change and deformation of the end of the auxiliary spring, and achieve lightweight cost, cost reduction, and light weight. The effect of quantification

Active Publication Date: 2018-09-11
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the structure in which the auxiliary spring abuts against the output shaft made of resin is adopted as described in Patent Document 1, the portion of the output shaft where the end of the auxiliary spring abuts will be damaged during long-term use. Deformation that changes the end of the auxiliary spring

Method used

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  • Gear motor and automatic opening and closing unit
  • Gear motor and automatic opening and closing unit
  • Gear motor and automatic opening and closing unit

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Embodiment Construction

[0074] A gear motor and an automatic opening and closing unit to which the present invention is applied will be described with reference to the drawings. In addition, in the following description, the rotation center axis|shaft of an output shaft is demonstrated as the axis|shaft L. As shown in FIG.

[0075] (the whole frame)

[0076] Fig. 1 (a) and Fig. 1 (b) are explanatory diagrams having an automatic opening and closing unit 100 to which the gear motor 1 of the present invention is applied, and Fig. 1 (a) and Fig. 1 (b) protrude from the output shaft 3 respectively A perspective view of the gear motor 1 viewed from one side (one side L1 in the axis L direction) and a perspective view of the gear motor 1 viewed from the opposite side (the other side L2 in the axis L direction) from the side protruding from the output shaft 3 . Fig. 2 (a), Fig. 2 (b), Fig. 2 (c) are explanatory diagrams showing the internal structure of the gear motor 1 to which the present invention is app...

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Abstract

The invention provides a gear motor and an automatic opening and closing unit which can assist the auxiliary spring to connect the auxiliary gear connected to auxiliary spring. Among the plurality of gear for transmitting the rotation of the motor, the output shaft (3) constructs an auxiliary gear connected to the auxiliary spring; the output shaft (3) having the tooth is formed on the outer circumference of the cylinder (35) made of the metal and the shaft body connected to the cylinder body (35) made of the resin; the cylinder (35) is provided with a clamping part (355) which is clamped with one end (71) of the auxiliary spring (70); and the output shaft is manufactured through the modeling of the insert of the cylinder (35).

Description

technical field [0001] The present invention relates to a gear motor provided with an auxiliary spring on an output shaft and an automatic opening and closing unit having the gear motor. Background technique [0002] In an automatic opening and closing unit that automatically opens and closes a toilet lid of a Western-style toilet or a lid of a washing machine, the lid body is driven by attaching a lid material to an output shaft of a gear motor. At this time, it is proposed to provide an auxiliary spring to exert an urging force in a direction against the gravitational force applied to the cover material (Patent Document 1). For example, in the gear motor described in Patent Document 1, there is described a structure in which an auxiliary spring is provided on the entire output shaft made of resin. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2014-84923 [0004] However, if the structure in which the auxiliary spring abuts against the output shaft made of res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116F16H55/17F16C3/02A47K13/10
Inventor 石水昭夫
Owner SANKYO SEIKI MFG CO LTD