Browse Prior Art Database

Drawer Latch Mechanism

IP.com Disclosure Number: IPCOM000052401D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Chellgren, JJ: AUTHOR [+2]

Abstract

The drawing is a top view of a cash-drawer latch mechanism for a point of sale terminal. Electrically operated solenoid 10 pulls link 11 to rotate latch arm 12 about pivot stud 13. (Finger 14 engages a key lock (not shown) for rotating latch arm 12 manually.) When tooth 15 clears stop 16, cam 17, made of a self-lubricating plastic, rotates about pivot stud 18 until tooth 15 engages stop 19 under the urging of spring 20. This rotation frees latch pin 21 carried by U-bracket 22, from slot 23 in cam 17 so that drawer 24 may be opened. The rotation of cam 17 also allows actuator 25 to open indicator switch 26.

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Drawer Latch Mechanism

The drawing is a top view of a cash-drawer latch mechanism for a point of sale terminal. Electrically operated solenoid 10 pulls link 11 to rotate latch arm 12 about pivot stud 13. (Finger 14 engages a key lock (not shown) for rotating latch arm 12 manually.) When tooth 15 clears stop 16, cam 17, made of a self-lubricating plastic, rotates about pivot stud 18 until tooth 15 engages stop 19 under the urging of spring 20. This rotation frees latch pin 21 carried by U-bracket 22, from slot 23 in cam 17 so that drawer 24 may be opened. The rotation of cam 17 also allows actuator 25 to open indicator switch 26.

Closing drawer 24 by hand pushes pin 21 into slot 23 to rotate cam 17 counterclockwise back to its original position.

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