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Rotary damper

A technology for rotating dampers and spools, applied in shock absorbers, shock absorbers, liquid shock absorbers, etc., can solve problems such as narrow gaps and inability to fully reduce resistance, and achieve the effect of improving responsiveness

Pending Publication Date: 2021-08-27
SOMIC ISHIKAWA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The elastic body is deformed when the spool is separated from one side of the wing plate, but there is a limit to the deformation of the elastic body, so the gap formed between the spool and one side of the wing plate is narrow
Therefore, the flow of oil through the groove is restricted by the narrower gap
Therefore, in this rotary damper, it is not possible to sufficiently reduce the resistance of the oil acting on the vane when the spool receives oil pressure from the opposite direction.

Method used

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Examples

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Embodiment Construction

[0019] Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings.

[0020] 【Example】

[0021] First, the structure of the rotary damper according to the embodiment will be described with reference to the drawings.

[0022] like figure 1 As shown, the rotary damper according to the embodiment includes a housing 1 and a rotor 2 . The housing 1 employed in the embodiment has a cylindrical peripheral wall 3 . like figure 2 As shown, one end of the peripheral wall 3 is blocked by the bottom wall 4 integrally formed with the peripheral wall 3 . like figure 2 As shown, the other end of the peripheral wall 3 is blocked by a cover 5 . like figure 1 as well as figure 2 As shown, the rotor 2 used in the embodiment is housed in the case 1 and supported by the case 1 and the cover 5 . like image 3 As shown, the rotor 2 has wings 6 .

[0023] like figure 1 as well as figure 2 As shown, the rotary damper according to the emb...

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PUM

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Abstract

The present invention can improve responsiveness of a valve and sufficiently reduce resistance of oil acting on a flap when a valve core receives the pressure of oil from the opposite direction. Provided is a rotary damper having a first valve (12) provided in a first oil passage (11), the rotary damper including an oil chamber (7) filled with oil; a vane (6) located in the oil chamber (7); a groove (14) which is formed in the vane (6) and functions as a valve box of the first valve (12); a valve body of the first valve (12) which moves while being in contact with a bottom surface (17) of the groove (14); and an elastic body which applies elasticity to the valve body, and causes the valve body to come into contact with a wall surface (13) of the oil chamber (7) when the oil does not flow, in which the bottom surface of the groove (14) is a slope, and thereby the valve body which is in contact with the wall surface (13) when receiving oil pressure from one direction moves away from the wall surface when receiving the oil pressure from an opposite direction.

Description

technical field [0001] The present invention relates to a rotary damper having a valve provided in an oil passage. Background technique [0002] Patent Document 1 below discloses a rotary damper having a valve provided in an oil passage. This rotary damper includes an oil chamber filled with oil, a vane located in the oil chamber, a groove formed in the vane and functioning as the oil passage, and a valve that moves while contacting an end surface of the vane. A spool, and an elastic body that imparts elastic force to the spool and brings the spool into contact with one surface of the wing plate when the oil does not flow. The spool is in contact with one surface of the wing plate when receiving the pressure of the oil from one direction, and is separated from the one surface of the wing plate when receiving the pressure of the oil from the opposite direction. In this rotary damper, the responsiveness of the valve is improved by imparting elastic force of the elastic body ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/14F16F9/32F16F9/34
CPCF16F9/145F16F9/3415F16F9/3207F16F9/12F16F2234/00F16F9/34F16F2222/12F16F2232/02F16F2236/08
Inventor 志村良太泷井正明
Owner SOMIC ISHIKAWA INC