Swinging device for a wheel set

Details Swinging device for a wheel set Swinging device for a wheel set

2007-12-04

2007-12-04

Morris, Lesley D. (Department: 3611)

Land vehicles

Wheeled

Coasters

C280S087042, C280S011280, C280S011270, C280S087050, C280S282000, C280S275000, C280S283000, C280S124103

Reexamination Certificate

active

11199198

ABSTRACT:
A swinging device for a wheel set includes a center tube, an axle pipe and a restrictor. The center tube has round plates at the rear section. The round plates comprise lugs thereon. The axle pipe has a curved receiving base with a pair of fins extending from respective sides of the receiving base. The fins comprise through holes for insertion of bolts. The restrictor is pivotally connected to the rear section of the center tube and comprises ditches corresponding in position to the round plates of the center tube, so that the lugs of the round plates may be placed therein and slide along the ditches. The restrictor further comprises through holes corresponding in position to the through holes of the receiving base and the bolts. An elastic piece made of plastic material is placed between the rear section of the center tube and the axle pipe.

REFERENCES:
patent: 6520517 (2003-02-01), Chung et al.
patent: 6793224 (2004-09-01), Stratton
patent: 7198280 (2007-04-01), Hara
patent: 7219907 (2007-05-01), Chang
patent: 2007/0200305 (2007-08-01), Hanson

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