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.
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[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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