Browse Prior Art Database

Wire Wrapping Tool

IP.com Disclosure Number: IPCOM000092977D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Morrison, T: AUTHOR [+3]

Abstract

The drawing illustrates two ways to prevent a spring-biased wire wrapping bit from being moved axially relative to sleeve 2 when the bit is placed over a terminal around which a wire is to be wrapped. Sleeve 2 is held against rotation in the slotted nose of casing 3. The upper end of bit 1 fits into a recess in plunger 4, keyed to rotatable sleeve 5 by pin 6, for rotation therewith and axial movement relative thereto. Pin 7 rotates bit 1. Spring 8 biases plunger 4 and bit 1 downwardly. In operation, bit 1 is first placed over a terminal and a clutch in the tool is engaged so as to rotate sleeve 5. As the bit wraps the wire around the terminal, successive turns of the wire push bit 1 and plunger 4 upwardly against the bias of spring 8.

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Wire Wrapping Tool

The drawing illustrates two ways to prevent a spring-biased wire wrapping bit from being moved axially relative to sleeve 2 when the bit is placed over a terminal around which a wire is to be wrapped. Sleeve 2 is held against rotation in the slotted nose of casing 3. The upper end of bit 1 fits into a recess in plunger 4, keyed to rotatable sleeve 5 by pin 6, for rotation therewith and axial movement relative thereto. Pin 7 rotates bit 1. Spring 8 biases plunger 4 and bit 1 downwardly. In operation, bit 1 is first placed over a terminal and a clutch in the tool is engaged so as to rotate sleeve 5. As the bit wraps the wire around the terminal, successive turns of the wire push bit 1 and plunger 4 upwardly against the bias of spring 8.

During loading, should bit 1 be moved upwardly relative to sleeve 5, this initial displacement causes erratic wrapping heights and insufficient bare wire turns about the terminal. The first way to prevent this comprises pin 9, biased by spring 10 radially inwardly. The inner end of pin 9 is received, when plunger 4 and sleeve 5 are stationary, in cam grooves therein. In such position, pin 9 prevents plunger 4 and hence bit 1 from moving upwardly relative to sleeve 2. As soon as sleeve 5 is rotated, the cam grooves in plunger 4 and sleeve 5 push pin 9 outwardly allowing sleeve 5 to rotate freely and allowing bit 1 and plunger 4 to move upwardly.

The second way uses lever 12 which is adapted to bear against the top...