Browse Prior Art Database

Clamp-Locking Device

IP.com Disclosure Number: IPCOM000061487D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Kirk, RD: AUTHOR [+2]

Abstract

A technique is described whereby a clamp-locking device provides a simple low cost method of locking and unlocking a shaft mechanism, such as where frequent adjustments are required on adjoining shaft assemblies. The clamp-locking device is unique in that only two parts are required, clamping lever 10 and split collet 11, as shown in Figs. 1 and 2. Clamping lever 10 has pin 12, which could be molded as part of lever 10, positioned between cams 13 so that clamping lever 10 can be snapped into detent 14 or split collet 11. Lever 10 is designed to provide a camming action, so that when the lever is rotated as shown in Fig. 2, it will cause split collet 11, which is positioned onto external shaft 15, to provide clamping action on the shaft.

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Clamp-Locking Device

A technique is described whereby a clamp-locking device provides a simple low cost method of locking and unlocking a shaft mechanism, such as where frequent adjustments are required on adjoining shaft assemblies. The clamp- locking device is unique in that only two parts are required, clamping lever 10 and split collet 11, as shown in Figs. 1 and 2. Clamping lever 10 has pin 12, which could be molded as part of lever 10, positioned between cams 13 so that clamping lever 10 can be snapped into detent 14 or split collet 11. Lever 10 is designed to provide a camming action, so that when the lever is rotated as shown in Fig. 2, it will cause split collet 11, which is positioned onto external shaft 15, to provide clamping action on the shaft. When lever 10 is rotated in the opposite direction, collet 11 will release its clamping action on shaft 15. Once lever 10 is installed in detent 14, it cannot fall out of place since pin 12 will hold it in position. Lever 10 is designed so that its travel is limited, in that over-rotation cannot occur in either direction. The design is also unique in that clamping lever 10 can be installed or removed from split collet 11 only when split collet 11 is not positioned onto external shaft 15. Therefore, lever 10 is trapped in position once the assembly is installed on shaft 15.

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