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Torsion Bar Counterbalance Mechanism

IP.com Disclosure Number: IPCOM000042804D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Kimura, H: AUTHOR

Abstract

The present structure provides a torsion bar counterbalance mechanism for hinged machine cover 10 (Fig. 1) with respect to machine frame 11 wherein free ends 12 of torsion bars 13 are slidably mounted to a brake mechanism. Fixed ends 14 of the torsion bars 13 are secured to a mounting bracket 15 which is attached to the cover 10. Each brake mechanism includes a slide member 16, a guide member 17 and a plate 18 (Fig. 2). The free end 12 of each torsion bar 13 is rotatably inserted into a hole of the slide member 16 and retained in the hole by retainers 19. The plate 18 and the guide member 17 are provided with blind-through holes 20, and are secured by screws to the machine frame 11 to slidably mount the slider member 16 therebetween.

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Torsion Bar Counterbalance Mechanism

The present structure provides a torsion bar counterbalance mechanism for hinged machine cover 10 (Fig. 1) with respect to machine frame 11 wherein free ends 12 of torsion bars 13 are slidably mounted to a brake mechanism. Fixed ends 14 of the torsion bars 13 are secured to a mounting bracket 15 which is attached to the cover 10. Each brake mechanism includes a slide member 16, a guide member 17 and a plate 18 (Fig. 2). The free end 12 of each torsion bar 13 is rotatably inserted into a hole of the slide member 16 and retained in the hole by retainers 19. The plate 18 and the guide member 17 are provided with blind- through holes 20, and are secured by screws to the machine frame 11 to slidably mount the slider member 16 therebetween. Torque applied to the screws for fastening the plate 18 to the guide member 17 is adjusted to provide an appropriate brake action to retain the opened cover at any position during its excursion. Member 21 defines the end of the cover excursion.

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