Browse Prior Art Database

Shockproof/Weatherproof Latching Mechanism

IP.com Disclosure Number: IPCOM000110991D
Original Publication Date: 1994-Jan-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Fundak, R: AUTHOR

Abstract

Described is a hardware implementation that provides a miniature double-catch latching assembly that is operated from a single point and is capable of withstanding impacts of 1,000g and is chemical/water-resistant.

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This is the abbreviated version, containing approximately 79% of the total text.

Shockproof/Weatherproof Latching Mechanism

      Described is a hardware implementation that provides a
miniature double-catch latching assembly that is operated from a
single point and is capable of withstanding impacts of 1,000g and is
chemical/water-resistant.

      Fig. 1 shows the latching mechanism consisting of housing 10,
connecting rod 11, cover latches 12, actuators 13, springs 14, wells
15, knob 16 and seal latch knob 17.  Wells 15 are designed to house
actuators 13 and latches 12 which are molded without the use of
normally required pulls for such a mechanism.  The entire latching
mechanism requires no fasteners; knob 17 is press fit and all other
components are retained by two covers that are ultra-sonically welded
to housing 10.

      Chemical resistance is achieved by molding all exposed parts
with an approved compound.  Actuators 13 are designed to produce a
positive retention in normal use.  In the event of a sudden impact,
actuators 13 will release, thereby protecting the latching mechanism
allowing the unit to dissipate shock energy through a hinging motion.
This is accomplished by adding a slight angle of incidence between
actuators 13 and catches (not shown) which they retain.  Connecting
rod 11 joins both actuators 13 to create a unified movement and to
provide a mounting point for external seal latch knob 17.

      Fig. 2 shows a section of the latch mechanism where actuator 13
is mated with well 15.  A sealing surface is used...