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Dual Automatic Fastener Locking Tension Spring

IP.com Disclosure Number: IPCOM000050956D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Beurer, FC: AUTHOR [+3]

Abstract

The particular apparatus requires fasteners spaced from one another at a particular distance and having a predetermined torque setting. In the past these fasteners required an operator to hold and maintain their torque setting while tightening a locking checknut. The present arrangement eliminates the time involved in locking checknuts, and avoids the use of a Z locknut for each fastener.

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Dual Automatic Fastener Locking Tension Spring

The particular apparatus requires fasteners spaced from one another at a particular distance and having a predetermined torque setting. In the past these fasteners required an operator to hold and maintain their torque setting while tightening a locking checknut. The present arrangement eliminates the time involved in locking checknuts, and avoids the use of a Z locknut for each fastener.

The dual locking tension spring 10 is made of a spring material. The tension spring 10 has a predetermined length determined by the distance between the fasteners 12 and 14 to be locked. As can be seen in the figure, the locking spring 10 is a bow-type spring having slots 16 and 18 of sufficient width at opposite ends for fitting under the heads of the fasteners 12 and 14, respectively, when the spring is depressed. This can be identified in the figure by the dotted- line position of the tension spring 10, identified as the install position. Once the downward pressure is removed from the spring 10, it returns to its normal bowed position, by spring action, which is identified in the figure by "locking position". The plan view shows the locking position with the outer ends of the slots 16 and 18 being pulled tight against the threads of the fasteners 12 and 14. A plan view of the installation and removal position of the spring 10 is shown in the top diagram. It will be appreciated that when the spring 10 is depressed, the slots 16 an...