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gear motor

A motor and gear technology, applied in the field of gear motors, can solve the problems of difficult main body shell assembly, difficult locking piece and protruding bushing locking, etc., and achieve the effect of easy assembly

Active Publication Date: 2016-07-27
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after the axial engaging portion of the biasing spring is engaged with the output shaft supported by one housing, when the other housing is to be assembled in one housing, since the protruding shaft of the other housing is sleeved on the The inner surface on one side of the case cannot be visually confirmed, so it is difficult to engage the locking piece of the radial engaging part with the protruding boss, and it is difficult to assemble the main body case

Method used

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Embodiment Construction

[0242] A description will be given of an embodiment in which the present invention is applied to a gear motor 1, wherein the gear motor 1 is used for a cover body that is driven to rotate about a horizontal axis, such as a toilet seat of a Western-style toilet, a toilet cover, a washing machine with a cover on the upper surface, and the like The opening and closing drive. figure 1 It is a perspective view showing the appearance of the gear motor 1 of the embodiment. figure 2 It is an exploded perspective view of the gear motor 1 viewed from the rear right and diagonally below. image 3 It is a development view of the gear set of the gear motor 1. Figure 4 It is a plan view showing a state in which the upper housing 30 is removed from the lower housing 70, and is a diagram illustrating the arrangement of the reduction gear set 5 and the output gear Gf in the lower housing 70. In addition, in Figure 4 Among them, the pinion gear 90, the first gear G1, and the sensor gear 137 are...

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Abstract

Provided is a geared motor which can improve assembly of springs. The geared motor (1) is provided with a DC motor (2), an output gear (Gf), and a reduction gear group in a housing (7) which is formed by overlapping a lower housing (70) and an upper housing (30) on a direction of an axis (Xa) of the output gear. Using the spring (Sp) disposed on the output gear, acting forces making the output gear rotate toward a direction around the axis (Xa) acts on the output gear. The spring (Sp) is provided with the other end (Sp2) extending from a coiled type base portion along an axial direction, and an end (Sp1) extending from the base portion along a radial direction. The other end (Sp2) is clamped with the output gear from a side of the upper housing (30). The end (Sp1) is clamped with clamping grooves (65a,65b) of the upper housing (30), so the spring (Sp) is stop rotating. The clamping grooves (65a,65b) are arranged that an opening is disposed toward a side of the lower housing (70).

Description

Technical field [0001] The invention relates to a gear motor. Background technique [0002] Patent Document 1 discloses a gear motor used in an automatic opening and closing device for a toilet seat and a toilet lid. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2002-219076 [0004] In Patent Document 1, the output rotation of the motor is transmitted to the output shaft via the speed reduction mechanism to drive the toilet seat and the toilet lid (lid body) connected to the output shaft to open and close. An urging spring is installed on the output shaft. When the output shaft rotates in the direction of opening the toilet seat and the toilet cover, the force generated by the urging spring assists the rotation in the above direction, thereby reducing the load of the motor. [0005] Here, the urging spring has a shaft-shaped axial engagement portion extending in the direction of the rotation axis of the output shaft and a radial engagement portion extending in the radial ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116
CPCH02K5/04H02K7/003H02K7/116
Inventor 有贺久刚
Owner SANKYO SEIKI MFG CO LTD