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Twin-wheel caster

A technology of guiding rollers and double wheels, which is applied to casters, wheels, multi-purpose hand tools, etc., can solve the problems of roller function failure, damage, non-protection of grease outflow, etc., and achieve the effect of preventing pollution and preventing grease outflow.

Active Publication Date: 2008-04-23
GROSS & FROELICH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This only allows insufficient guidance of the slide valve, so that when subjected to tilting forces the pin could easily tilt relative to the housing, thereby also causing the wheels to tilt relative to the housing, which besides possibly resulting in an unsatisfactory aesthetic appearance May also cause malfunction of the scroll wheel
During shock loading, the pin hits the upper edge of the elongated hole and can thereby damage the weak housing wall
In addition, in this known roller, due to the flat housing wall running perpendicular to the ground, there is little protection against the ingress of dirt into the bearing area of ​​the pin and, conversely, no protection against the outflow of grease which would lead to contamination of steep surfaces.

Method used

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  • Twin-wheel caster
  • Twin-wheel caster
  • Twin-wheel caster

Examples

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Embodiment Construction

[0024] The roller (Fig. 1) shown in the figure mainly comprises a housing 10, a pin shaft 22 and two wheels 26, 26'; Here the swivel pin is rotatably fixed on a concrete or the like, and the housing 10 also has a spool hole 16 for accommodating the spool 18, which can overcome the force of the spring 20 in a rolling position and a braking position. Move vertically in the housing 10 between them; the pin shaft 22 is press-fitted in the through hole 24 of the spool valve 18 and arranged transversely to the spool valve hole 16; the wheels 26, 26' have tubular hubs 28, 28', The hub is sleeved on the free end of the pin shaft 22 and rotates on it. The wheel consists of a wheel body with cast-on running surfaces made of a material adapted to the intended application, and the rounded top 30 of the housing 10 covers the upper region of the wheels 26 , 26 ′.

[0025] The housing ( FIG. 2 ) has a recess 32 in the region of the slide valve bore 16 , through which the slide valve 18 pass...

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PUM

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Abstract

The castor has a housing (10) with two projections (38, 38`) that are arranged in a lower area of the housing. The projections are provided adjacent to a shaft-shaped slide opening (16) which receives a slide having a through opening to receive a bolt (22). The projections laterally extend from a housing wall over a width of the opening (16) to frictionally support two hubs of wheels (26, 26`) in a braking position. The projections have semi-circular slots provided adjacent to recesses in wall sections. The slide and the housing are made up of polypropylene or polyamide plastic.

Description

technical field [0001] The invention relates to a guide roller with two wheels, comprising a housing having a substantially vertically arranged upper pin hole for accommodating a swivel pin in order to connect the roller to furniture or other objects; A cylindrical lower spool bore laterally offset with respect to the pin bore for accommodating a spring-loaded spool valve in the housing, the spool valve having a pin arranged substantially transversely to the spool bore for supporting the wheel A through-bore for the shaft, which is displaceably arranged in the housing between a rolling position and a braking position; and a recess for the passage of the pin in the wall surrounding the slide valve bore. Background technique [0002] Rollers of this type are used on a large scale, for example, in rollable office chairs, a distinction being made between braked and non-braked rollers. The brake roller has a rolling position in the stressed state, for example if a person is sitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B33/00B60B33/02
CPCB60B33/0068B60B33/0073B60B33/021B60B33/0097B60B33/001B60B33/0049B60B33/0057B60B33/0042B60B33/0028B60B33/0021
Inventor E·伯格R·冯博德柳斯
Owner GROSS & FROELICH
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