JPH01143745U

JPH01143745U -

Info

Publication number: JPH01143745U
Application number: JP2665889U
Authority: JP
Priority date: 1989-03-10
Filing date: 1989-03-10
Publication date: 1989-10-03
Also published as: JPH0412054Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の一部を断面にし
た正面図、第２図は同上の要部の一部を断面にし
た拡大側面図、第３図は同上の縦断正面図、第４
図は同上の分解状態の縦断正面図、第５図は第２
実施例の第４図と同様な分解状態の縦断正面図、
第６図は同じく第３実施例の一部を断面にした正
面図、第７図は同上の縦断正面図、第８図は第４
実施例の一部を断面にした側面図、第９図は同上
の一部を断面にした側面図で、図中、１は駆動軸
の本体、４は傾斜溝、６はローラ、７は保持器、
８は環状輪、９は環状輪の割目、１３は筒芯を示
す。 FIG. 1 is a partially sectional front view of the first embodiment of the present invention, FIG. 2 is an enlarged side view of a partially sectional main part of the same, and FIG. 3 is a longitudinal sectional front view of the same. Fourth
The figure is a longitudinal sectional front view of the disassembled state of the same as above, and Figure 5 is the second
A vertical sectional front view in an exploded state similar to FIG. 4 of the embodiment,
FIG. 6 is a partially sectional front view of the third embodiment, FIG. 7 is a longitudinal sectional front view of the same, and FIG. 8 is a front view of the fourth embodiment.
FIG. 9 is a partially cross-sectional side view of the embodiment, and FIG. 9 is a partially cross-sectional side view of the same. vessel,
8 is an annular ring, 9 is a split of the annular ring, and 13 is a cylinder core.

Claims

[Claims for Utility Model Registration] (1) A central drive shaft, a plurality of wheels rotatably extrapolated to the central drive shaft in parallel, and a transmission means for frictionally transmitting the drive of the central drive shaft to the wheels. and has
A plurality of inclined grooves in the circumferential direction with inclined bottoms are formed at intervals on the outer periphery of each of the above-mentioned rings, and within each of the inclined grooves, there is provided a ball that can roll from the deep part of the inclined groove to the shallow part. In a rotary drive shaft housing rollers that gradually protrude outward from the inclined grooves as they roll, an annular ring is provided corresponding to the ring and holds the rollers in each inclined groove at a distance from each other. A retainer, an annular ring having a split at one place, which is provided so as to surround the outer periphery of the roller, and expands in diameter by the urging of the roller, and as the diameter expands, the winding part of the sheet band or A rotary drive shaft for winding up a sheet band, characterized by comprising an annular ring that engages the inner periphery of a cylindrical core and almost the entire outer periphery thereof. (2) The rotary drive shaft for winding up a sheet band according to claim 1, wherein the inclined groove has a shallow portion at one end in the circumferential direction of the shaft and a deep portion at the other end. (3) The rotary drive shaft for winding up a sheet band according to claim 1, wherein the inclined groove is shallow at both ends in the circumferential direction of the shaft and deep at the center.