JPH01129159U

JPH01129159U -

Info

Publication number: JPH01129159U
Application number: JP2423288U
Authority: JP
Priority date: 1988-02-25
Filing date: 1988-02-25
Publication date: 1989-09-04
Anticipated expiration: 2003-02-25
Also published as: JPH0613164Y2

Description

[Brief explanation of the drawing]

第１図は本考案のロール支持軸の構造体一実施
例を示す要部正面断面図、第２図は第１図のア―
ア線断面図、第３図は従来のものの一例を示す要
部正面断面図である。１……ロール体、２ａ……支持軸、２ｂ……円
筒軸、２ｃ……先端軸、３……ローラ、４，６…
…ばね、５……止め輪、７……ボルト、ｘ……す
り割り、ｙ……円径溝、ｕ″……勾配溝、ｕ′…
…平行溝、ｕ……溝。 FIG. 1 is a front cross-sectional view of essential parts showing one embodiment of the structure of the roll support shaft of the present invention, and FIG.
FIG. 3 is a front sectional view of a main part showing an example of the conventional one. 1... Roll body, 2a... Support shaft, 2b... Cylindrical shaft, 2c... Tip shaft, 3... Roller, 4, 6...
... Spring, 5 ... Retaining ring, 7 ... Bolt, x ... Slot, y ... Circular groove, u'' ... Gradient groove, u' ...
...Parallel groove, u...groove.

Claims

[Scope of utility model registration request]

In a structure in which a support shaft is moved from both ends to sandwich a roll body for winding paper, film, etc. so that it can be attached and detached, and also to apply a brake torque for tension, at least three or more places are provided on the outer diameter portion of the support shaft. a plurality of grooves are formed in the longitudinal direction, the bottoms of the plurality of grooves are parallel grooves to the shaft center on the tip side of the support shaft, and upward slope grooves on the base side of the support shaft,
Furthermore, rollers are provided in the plurality of grooves, and parallel grooves are provided with springs that press toward the root side of the support shaft to maintain the position of the rollers, and the rollers can move in the axial direction in accordance with the outer diameter portions of the rollers. A cylindrical shaft is provided, one side of the cylindrical shaft is provided with slots at a plurality of locations in the axial direction, and a collar that abuts against a collar provided on the base side of the support shaft is provided, and the other side is provided with slots that allow for easy inward expansion of the slots. A circular groove is provided in the radial direction at the front end of the cylindrical shaft, and a tip shaft for guiding the insertion of the support shaft is provided at the tip of the cylindrical shaft, and the tip shaft has a recess on the cylindrical shaft side. a retaining ring is attached to the support shaft located in the recess in the direction in which the cylindrical shaft does not come out of the support shaft, and a spring has a required spring force in the direction in which the cylindrical shaft is inserted into the support shaft. is provided in a concave part to hold the position, and the tip shaft is fixed to the cylindrical shaft with a bolt or the like to form an integral structure, and when the roll body is pushed toward the base of the support shaft, the moving force is received by the collar of the cylindrical shaft. The structure of the roll support shaft is characterized in that the outer diameter of the cylindrical shaft is enlarged by the roller climbing the sloped groove, and the inner diameter of the roll body is pressed against the inner diameter of the roll body to transmit brake torque. body.