Driver system roller apparatus
First Claim
1. A drive system roller apparatus for a roller conveyor, having;
- a frame disposed in the transporting direction of said roller conveyor;
a roller shaft supported to said frame;
a roller body rotatably disposed at the outer periphery of said roller shaft and being supportable of a load to be transported;
an annular flexible member rotatably disposed between said roller shaft and said roller body and expandable and contractable so as to be capable of abutting against and moving away from the inner surface of said roller body;
fluid supply means which perforates said roller shaft to be open within said flexible member and supplies operating fluid into said flexible member so as to enable said flexible member in condition of contraction to be expanded, and a roller device having ameans for rotatably driving said flexible member.
1 Assignment
0 Petitions
Accused Products
Abstract
A drive system roller apparatus used for a roller conveyor built in a shelf device or a roller conveyor installed on a floor, wherein at the outer periphery of a roller shaft supported at a frame is provided a roller body rotatable and supporting a load to be transported, between the roller body and the roller shaft is provided an annular flexible member which is capable of expanding and contracting so as to contact with and remove from the inner periphery of the roller body by the expansion and contraction, and the flexible member is rotatably driven, so that an operating fluid is supplied from the fluid route into the flexible member, and the flexible member in the contacting state is expanded to abut against the inner surface of the roller body, thereby the roller body rotates to transport a load.
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Citations
11 Claims
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1. A drive system roller apparatus for a roller conveyor, having;
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a frame disposed in the transporting direction of said roller conveyor; a roller shaft supported to said frame; a roller body rotatably disposed at the outer periphery of said roller shaft and being supportable of a load to be transported; an annular flexible member rotatably disposed between said roller shaft and said roller body and expandable and contractable so as to be capable of abutting against and moving away from the inner surface of said roller body; fluid supply means which perforates said roller shaft to be open within said flexible member and supplies operating fluid into said flexible member so as to enable said flexible member in condition of contraction to be expanded, and a roller device having a means for rotatably driving said flexible member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A drive system roller apparatus for a roller conveyor, having;
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a frame disposed in the direction of transporting of said roller conveyor, a roller rotatably supported to said frame and supportable of a load to be transported, a support shaft supported to said frame below said roller, an annular flexible member which is rotatably disposed around said support shaft and being expandable and contractable so as to be contactable with and removable from said roller by the expansion and contraction, fluid supply means which perforates said support shaft so as to be open within said flexible member and supplies an operating fluid into said flexible member to thereby enable said flexible member in condition of contraction to be expanded, and means for rotatably driving said flexible member.
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Specification