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RETAINER

IP.com Disclosure Number: IPCOM000005410D
Original Publication Date: 1980-Aug-01
Included in the Prior Art Database: 2001-Oct-10
Document File: 1 page(s) / 40K

Publishing Venue

Motorola

Related People

John Laugal: AUTHOR [+2]

Abstract

With the use of metric threaded screws in mounting hardware, the loss of a screw, in a remote area, could cause a significant problem in reassembling the unit. The novel retainer is a plastic part which will retain the mounting screw to a larger member of an assembly. The retainer snaps into a slot 5 located in a bracket or printed circuit board 2. Then a screw 3 is driven down through the retainer and through a spacer 4. The screw is now held securely in place, eliminating possible loss.

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MOTOROLA Technical Disclosure Bulletin Vol. 1 No. 1 August 1990

RETAINER

By John Laugal &Alan Grimshaw

   With the use of metric threaded screws in mounting hardware, the loss of a screw, in a remote area, could cause a significant problem in reassembling the unit. The novel retainer is a plastic part which will retain the mounting screw to a larger member of an assembly. The retainer snaps into a slot 5 located in a bracket or printed circuit board 2. Then a screw 3 is driven down through the retainer and through a spacer 4. The screw is now held securely in place, eliminating possible loss.

No destructive steps are necessary in order to disassemble screw and retainer. The retainer is simply squeezed to permit removal.

   An additional feature of the device is captivation of the screw while requiring a minimum of space above the screw. As the screw is removed, the retainer moves upward with the screw. No torque is transmitted to the retainer from loosening or tightening the screw. Also, with the screw completely tightened, there is no force on the retainer.

Figure 1.

Figure 2.

0 Motorola. Inc. 1980

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