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Friction damper

A friction damper and friction element technology, applied in the field of washing machines, can solve the problems of loose latch connection, noise interference of friction damper, etc., and achieve the effect of reliable latch connection and ensuring axial prestress

Pending Publication Date: 2021-04-16
SUSPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any axial play between the cover and the housing due to tolerance deviations may cause unwanted noise disturbances in the operation of the friction damper
If tensile stress develops on the damper, there is a risk of the latch connection becoming loose

Method used

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Examples

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Embodiment Construction

[0032] exist Figure 1 to Figure 3 A friction damper, generally indicated by 1, is used in washing machines to damp vibrations. The friction damper 1 comprises a cylindrical housing 2 and a tubular tappet 3 which is arranged along a longitudinal axis 4 of the housing 2 and is displaceably guided in the housing.

[0033] The tappet 3 comprises a first fixing element 5 by means of which the friction damper 1 can be fixed to an object. The first fastening element 5 is arranged at the free end 6 of the tappet 3 . The free end 6 of the tappet 3 is situated opposite the housing-side end 7 via which the tappet 3 is arranged in the housing 2 .

[0034] The tappet 3 comprises a tappet tube 8 which is in particular made of a lightweight material, in particular a light metal, in particular an aluminum alloy. The tappet 3 can also be made of another material. According to the exemplary embodiment shown, the first fixing element 5 is inserted into the tappet tube 8 at the end face at t...

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Abstract

A frictional damper is designed with a tubular housing (2) having a longitudinal axis (4), with a tappet (3), which is displaceable in the housing (2) along the longitudinal axis (4) and is led out at an open end (11) of the housing (2), with a frictional element (31) lying against the tappet (3) and with a cap (22) attached to the open end (11) of the housing (2) with axial prestressing relative to the longitudinal axis (4).

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority from German patent application DE 10 2019 215 931.1, the content of which is hereby incorporated by reference. technical field [0003] The present invention relates to a friction damper, in particular for washing machines. Background technique [0004] Such a friction damper is known from DE 38 11 742 A1. In a friction damper, a damping bush is used to generate friction between the housing and a tappet, which is displaceable longitudinally relative to the housing. A damping bush is arranged in a cover serving as a damping housing. The cover is fixed axially to the housing. The cover is secured axially, for example by adhesive bonding, welding or abutment of the housing. These connections are technically expensive to manufacture. The cover can also be secured by a press fit or latch connection. Due to tolerance deviations in the manufacture of the cover and / or the housing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/08
CPCF16F7/09D06F37/20F16F2222/04F16F2224/02F16F2224/0208F16F2226/00F16F2228/007F16F2228/08F16F2230/0005F16F2232/08F16F2234/02
Inventor 安德里亚斯·佩尔茨米哈伊尔·鲍尔塞巴斯蒂安·厄尔特马尔科·迈耶米哈伊尔·韦德
Owner SUSPA
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