Browse Prior Art Database

SELF-LOCKING BATTERY DOOR

IP.com Disclosure Number: IPCOM000007249D
Original Publication Date: 1994-Jun-01
Included in the Prior Art Database: 2002-Mar-07
Document File: 3 page(s) / 100K

Publishing Venue

Motorola

Related People

Henry Wandt: AUTHOR [+2]

Abstract

Typical pager designs include battery door locks which are molded from hard thermoplastic materi- als. These designs have several drawbacks, notably: Time consuming to design Require precise dimensional control to be effective Susceptible to failure due to foreign matter build-up on their sliding surfaces Ohen require apertures into the pager into which foreign matter as well as electrostatic discharge can ingress The invention illustrated in Figures 1 thru 4 pro- vides a simple and robust method to automatically lock and manually unlock a sliding battery door. The primary advantage of this method is that the Lock Button is molded from a resilient material and as such can provide an effective seal. Additionally, this design eliminates any sliding motion ofthe lock hence is less susceptible to failure due to foreign matter build-up.

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M-LA Technical Developments Volume 22 June 1994

SELF-LOCKING BATTERY DOOR

by Henry Wandt and Charles A. Actor

  Typical pager designs include battery door locks which are molded from hard thermoplastic materi- als. These designs have several drawbacks, notably:

Time consuming to design

Require precise dimensional control to be effective

Susceptible to failure due to foreign matter build-up on their sliding surfaces

Ohen require apertures into the pager into which foreign matter as well as electrostatic discharge can ingress

  The invention illustrated in Figures 1 thru 4 pro- vides a simple and robust method to automatically lock and manually unlock a sliding battery door. The primary advantage of this method is that the Lock Button is molded from a resilient material and

as such can provide an effective seal. Additionally, this design eliminates any sliding motion ofthe lock hence is less susceptible to failure due to foreign matter build-up.

The invention consists ofa Lock Button (Figure
l), a latch. (molded feature ofthe Back Cover) and a mating catch (Figure 2) on the Battery Door. The Battery Door is slid on the rail system until the latch engages the catch (Figure 2). As the catch and latch meet, chamfered surfaces on each cause the latch to deflect. As the catch fully passes the latch, the latch returns to the undeflected position where it serves to block the travel of the Battery Door, thereby "locking it?' The Battery Door is unlocked by depress- ing the Loc...