JPS5818150U

JPS5818150U - tension pulley

Info

Publication number: JPS5818150U
Application number: JP11261381U
Authority: JP
Inventors: 奥本　正典; 正文佐藤
Original assignee: 光洋精工株式会社
Priority date: 1981-07-28
Filing date: 1981-07-28
Publication date: 1983-02-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のテンションプーリーの一例を示す縦断面
図、第２図はこの考案の実施例の縦断面図、第３図は側
面図、第４図は第３図、のＩＶ−ＩＶ線における横断平
面図、第５図ａ、　　ｂ、第６図ａ。ｂｌはそれぞれ加工工程を示す縦断面図と横断平面図、
第７図は他の実用例を示す拡大縦断面図である。１１・・・鍔、１２・・・外筒部、１３・・・鍔部、１
４・・・内筒部、１５・・・環状平面部、１６・・・プ
ーリー基板、１７．１８・・・辺、１９・・・外側面、
２０．２１・・・突出部、３０・・・軸受。（Ｑ）２１　　ｋｂゝツ０（α）２０２１″ｄ２Fig. 1 is a longitudinal sectional view showing an example of a conventional tension pulley, Fig. 2 is a longitudinal sectional view of an embodiment of this invention, Fig. 3 is a side view, and Fig. 4 is a line IV-IV of Fig. 3. 5a, b, and 6a. bl is a vertical cross-sectional view and a cross-sectional plan view showing the processing steps, respectively;
FIG. 7 is an enlarged longitudinal sectional view showing another practical example. 11...Brim, 12...Outer cylinder part, 13...Brim part, 1
4... Inner cylinder part, 15... Annular plane part, 16... Pulley board, 17.18... Side, 19... Outer surface,
20.21... Protrusion, 30... Bearing. (Q) 21 kbゝtsu0 (α) 2021″d2

Claims

[Scope of utility model registration request]

(1) An integral body with a U-shaped cross section that has an outer cylinder part on which the belt is hung, an inner cylinder part in which the bearing is fitted and held, and an annular plan view that connects the inner and outer cylinders in the radial direction at one end. In a tension pulley that is made by integrating a pair of steel plate pulley substrates consisting of molded ring bodies by abutting their flat parts, the opposing two sides are placed at an appropriate number of locations in the circumferential direction of the two abutting annular flat parts. Forming a protruding part in which the two plastically deformed parts between the sheared parts overlap and protrude on one outer surface of the two annular plane parts that are cut and abutted;
A tension pulley characterized in that the double protruding portion is further deformed so that both sheared portions protrude in opposing directions, thereby fixing a pair of pulley substrates together.

(2) The tension pulley according to claim (1), wherein the sheared portion and the protruding portion are formed by simultaneously pressing two annular flat portions that are butted against each other.