Browse Prior Art Database

Drive Belt Tensioning Arrangement

IP.com Disclosure Number: IPCOM000083980D
Original Publication Date: 1975-Aug-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

George, IC: AUTHOR [+3]

Abstract

A belt tensioning arrangement is shown in Figs. 1 and 2. A drive pulley 1 carrying a drive belt 2 is shown mounted by a bracket 3 on a pivoted arm C. A belt tensioning device 5 is mounted so as to exert a predetermined force F against the pivoted arm 4, in order to provide the required belt tension.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 91% of the total text.

Page 1 of 2

Drive Belt Tensioning Arrangement

A belt tensioning arrangement is shown in Figs. 1 and 2.

A drive pulley 1 carrying a drive belt 2 is shown mounted by a bracket 3 on a pivoted arm C. A belt tensioning device 5 is mounted so as to exert a predetermined force F against the pivoted arm 4, in order to provide the required belt tension.

The device 5 is further shown in partial section in Fig. 3, from which it is seen to consist of a piston-like plunger 6 axially slidable into and out of a cylindrical hole 7 in housing 8. A low-rate cylindrical spring 9 is provided around the body of the plunger 6, and is retained in place by a flange 10 on the end of the plunger. A shaft 11 extends axially from the plunger 6 through the housing 8 and is retained in place by a collar 12. The collar has a rectangular lug 13 which in one position drops into a mating slot 14 in housing 8, but when rotated to any other position cannot enter the slot 14 and is supported on the lower surface 15 of the housing 8.

Initially, the plunger 6 is preset with a loading force F by adjusting the axial position of collar 12 on shaft 11 to compress spring 9. This adjustment is made with the collar 12 rotated so that the lug 13 is supported on surface 15. After this initial adjustment, the device is mounted, as shown in Fig. 1, with the end of the plunger 6 contacting the pivoted arm 4 with the slack removed from belt 2. The collar 12 is then rotated, as shown in Fig. 2, until lug 13 falls into slot 14,...