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Damper

A damper device and opening technology, applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve problems such as noise generation, and achieve the effect of suppressing noise

Active Publication Date: 2019-09-03
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, when the tooth 53 of the tooth-missing gear 38 passes over the second tooth 69 of the sector gear, the tooth 53 of the tooth-missing gear 38 will interfere with the second tooth 69, thereby generating noise

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0053] Hereinafter, a damper device for a refrigerator to which the present invention is applied will be described with reference to the drawings.

[0054] (the whole frame)

[0055] Fig. 1(a) and Fig. 1(b) are perspective views of the damper device to which the present invention is applied viewed from the side where the baffle is arranged. Fig. 1(a) is a state where the opening is opened, and Fig. 1(b) is a state where the opening is closed. figure 2 It is an exploded perspective view of the damper device of FIG. 1( a ) and FIG. 1( b ). In the following description, the rotation central axis of the baffle 2 of the damper device 1 is referred to as L0; the direction along the rotation central axis L0 is referred to as the X direction; The direction in which the portion 3 faces is referred to as the Z direction, and the direction perpendicular to the X direction and the Z direction is referred to as the Y direction. And, let one side of the X direction be X1; the other side ...

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PUM

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Abstract

A damper device may include a baffle to open / close an opening part; a motor; and a gear train connecting the motor and the baffle and including a partially toothless gear and a sector gear. The partially toothless gear may include an outer peripheral part so as to have an outer peripheral face curved along a tooth tip circle of the teeth part. The outer peripheral part may include an end face at a midway position of the teeth part in the axial line direction where a length in the axial line direction is shorter than a tooth width of the teeth part. The sector gear may include a first tooth cut out facing the outer peripheral face and configured to enter in to an inner peripheral side of the tooth tip circle. A second tooth disposed adjacent to the first tooth and configured to abut the outer peripheral face.

Description

technical field [0001] The present invention relates to a damper device that opens and closes an opening with a damper. Background technique [0002] Patent Document 1 discloses a damper device that opens and closes an opening constituting a part of a cold air passage of a refrigerator with a damper. The damper device in this document rotates the baffle through a drive mechanism having a stepping motor and a gear set. The shutter moves between a closed position for closing the opening and an open position for opening the opening. The gear set includes a toothless gear and a sector gear driven by the toothless gear. [0003] The tooth-missing gear has an outer peripheral portion located adjacent to the tooth portion of the tooth-missing gear in the circumferential direction, and has an outer peripheral surface along the addendum circle of the tooth portion. The length in the axial direction of the outer peripheral portion is shorter than the tooth width of the tooth portio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H27/08
Inventor 则武诚一朗齐藤俊二
Owner SANKYO SEIKI MFG CO LTD