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Patent Searching and Data


Title:
BIDIRECTIONAL ROLLERS
Document Type and Number:
Japanese Patent JP2008290638
Kind Code:
A
Abstract:

To provide bidirectional rollers which enable the rocking-free and rattle-free spinning with respect to their contact face.

Omnidirectional rollers include a plurality of barreled rollers which are arranged annularly at equal intervals rotatably around the outer periphery of a rotor body within an imaginary plane perpendicularly crossing the shaft core of the rotor body. A plurality of large-diameter barreled rollers 2 with same size and a plurality of small-diameter barreled rollers 3 with same size are alternately arranged one by one in the peripheral direction of the rotor body 1. The ends of the respective small-diameter barreled rollers 3 enter rotatably into the end recesses 23 of the neighboring large-diameter barreled rollers 2, and the respective peripheries of the large-diameter barreled rollers 2 and respective small-diameter barreled rollers 3 are aligned along a common imaginary circle with the shaft core of the rotor body being its center.


Inventors:
Takai, Akiyoshi
Application Number:
JP2007000139833
Publication Date:
December 04, 2008
Filing Date:
May 28, 2007
Export Citation:
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Assignee:
FUJI SEISAKUSHO:KK
International Classes:
B60B19/00
Attorney, Agent or Firm:
丸山 敏之
宮野 孝雄
北住 公一
長塚 俊也
久徳 高寛