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Title:
CONVEYER
Document Type and Number:
Japanese Patent JP2009234725
Kind Code:
A
Abstract:

To provide a conveyer which prevents an endless chain from flowing downward to an opening when the endless chain stops turning without any necessity of adjustment of the distance between a pair of sprockets for a long time.

The conveyer includes a pair of sprockets, a casing 9 in which these sprockets are attached, a bearing member 15 which supports a support shaft 2a of a sprocket 2, an endless chain which is wound on the pair of sprockets and to which scrapers are attached at predetermined intervals, a nut fixed to the bearing member 15, a screw shaft 25 which is screwed to this nut and has a spring washer, a coil spring 26 which is served as a coil spring pre-compressed and mounted between this spring washer and the casing 9 and which has a restoration applying the bearing member 15 in a direction for making the interval between the pair of sprockets large, and a stopper which is mounted to the screw shaft 25 and used to limit a compression deflection of the coil spring 26.


Inventors:
SUNADOMARI MASAHIRO
TAKADA YUZO
Application Number:
JP2008083111A
Publication Date:
October 15, 2009
Filing Date:
March 27, 2008
Export Citation:
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Assignee:
TOA KIKAI KOGYO KK
International Classes:
B65G23/44
Domestic Patent References:
JPH07301296A1995-11-14
JPH0730218U1995-06-06
JPH03130215U1991-12-27
Attorney, Agent or Firm:
Patent business corporation Yuko patent office