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HANDSET LATCH & DELATCH SYSTEM

IP.com Disclosure Number: IPCOM000005471D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2001-Oct-10
Document File: 2 page(s) / 78K

Publishing Venue

Motorola

Related People

Donald E. Irving: AUTHOR

Abstract

To provide a means of placing a mobile telephone handset (1) into a holding device with a simple and low insertion force and also capable of holding it securely through the shock and vibration forces encountered in motor driven vehicles. Because of the holding requirements of the device it was necessary to develop a simple method of unlatching as well.

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Volume 3 March 1983

HANDSET LATCH & DELATCH SYSTEM

By Donald E. Irving

NEED
. To provide a means of placing a mobile telephone handset (1) into a holding device with a simple and low insertion force and also capable of holding it securely through the shock and vibration forces encountered in motor driven vehicles. Because of the holding requirements of the device it was necessary to develop a simple method of unlatching as well.
.

SOLUTION

    As shown in Figure I, the front cavity (2) of the telephone handset (1) is inserted under the sta- tionary tab (3) and by lowering the rear of the telephone handset (1) the retaining pawl (4) is cammed back against the torsion spring (5) allowing the telephone handset (1) to paress against the elastermer pads (7) and then allowing the retaining paw1 (4) to enter the rear cavity (6) of the telephone handset (1) holding it firmly in place.

FIGURE IIA

    Figures HA, B and C show three different ways of unlatching. Figure 11A employs a rectangular cam (8) located behind the retaining pawl (4). The cam (8) is fixed to the shaft (9) that when rotat,ed clockwise or counterclockwise on the pivot (10) causes the cam (6) to move the retaining paw1 (4) out of engagement with the rear cavity (6); thereby releasing the telephone handset (1). The cam (6) is returned to its neutral position behind the retaining pawl (4) by means of the torsion spring (5) acting on the re- taining pawl (4).

FIGURE IIB

    Employs either one of two formed shafts (11)...