JPS62140255U

JPS62140255U -

Info

Publication number: JPS62140255U
Application number: JP2884986U
Authority: JP
Priority date: 1986-02-28
Filing date: 1986-02-28
Publication date: 1987-09-04
Anticipated expiration: 2001-02-28
Also published as: JPH0612269Y2

Description

[Brief explanation of the drawing]

第１図から第４図はこの考案の１実施例を示す
もので、第１図はベルトの駆動装置の正面図、第
２図はシヤフトと支持アームとの支持構造を示す
部分拡大図、第３図は第１図における―線矢
視断面図、第４図はベルトの駆動装置の側面図で
ある。５……シヤフト、５ａ……係合部、６ａ，６ｂ
……支持アーム、６ｃ……係合片、６ｄ……長穴
、７……テンシヨンロール、１０……駆動手段、
１１……スリーブ、１２……連結片。 1 to 4 show one embodiment of this invention, in which FIG. 1 is a front view of the belt drive device, FIG. 2 is a partially enlarged view showing the support structure of the shaft and the support arm, and FIG. 3 is a sectional view taken along the line -- in FIG. 1, and FIG. 4 is a side view of the belt drive device. 5... Shaft, 5a... Engaging portion, 6a, 6b
...Support arm, 6c...Engagement piece, 6d...Elongated hole, 7...Tension roll, 10...Driving means,
11... Sleeve, 12... Connecting piece.

Claims

[Scope of utility model registration request]

A pair of support arms erected from both ends of the shaft, a tension roll rotatably supported between the support arms at right angles to the support arms, and a drive source parallel to the tension rolls and spaced apart from each other. A belt or the like is wound around the drive roll and the tension roll, and the support arm is moved to move the tension roll away from the drive roll to apply tension. A drive for a belt, etc., in which one end of the tension roll is released from the support of a support arm and the belt, etc. is attached or detached by rotating the end of the shaft as a fulcrum within the plane where the tension roll and shaft exist. In the apparatus, an engagement piece and an elongated hole are formed at the base end of the support arm of the tension roll, and an engagement piece and an elongated hole are formed at the tip of the shaft, respectively, and the engagement piece and the elongated hole project toward the sides of the support arm. The engagement piece is rotatably supported by the engagement portion, and a sleeve is slidably fitted into the engagement portion. A swingable connecting piece hooked in the elongated hole is attached to the belt, and the sleeve is positioned so as to cover the engaging part with the support arm standing up. etc. drive device.