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Damper device

A damper device and sector gear technology, applied in valve devices, household refrigeration devices, cooling fluid circulation devices, etc., can solve problems such as noise generation and achieve the effect of suppressing noise

Active Publication Date: 2016-12-07
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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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 disposed. 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

The present invention may advantageously provide a damper device which is capable of preventing generation of abnormal noise when engagement of the sector gear with the partially toothless gear is started even if the sector gear is inclined. The partially toothless gear is provided with an outer peripheral part at a portion adjacent to a teeth part in a circumferential direction so as to have an outer peripheral face curved along a tooth tip circle of the teeth part on an outer peripheral side relative to the tooth tip circle. The sector gear includes a first tooth which is cut out at a portion facing the outer peripheral face and is capable of entering to an inner peripheral side of the tooth tip circle on the one side in the axial line direction of the end face, and a second tooth which is disposed so as to be adjacent to the first tooth and is capable of abutting with the outer peripheral face when the first tooth is entered to the inner peripheral side of the tooth tip circle, so that the partially toothless gear and the sector gear are in locking state. As the outer peripheral face is located at a position closer to the outer peripheral side than the tooth top circle, the second tooth cannot protrude to the inner side of the tooth top circle.

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 Applications(China)
IPC IPC(8): F16K31/53F25D17/04
Inventor 则武诚一朗齐藤俊二
Owner SANKYO SEIKI MFG CO LTD