Torque cell
AssigneeSymbol Technologies, Inc.
InventorThomas Wulff
Life of this patent
Estimating the term…
Abstract
A hand held mobile terminal includes at least one torque cell for facilitating a torsionally stiff housing structure. The torque cell includes a plurality of first locking members located around a perimeter of a first housing and a plurality of second locking members located around a perimeter of a second housing. The first and second locking members are slidably engageable with each other so as to create a plurality of interlocking joints around the perimeter of the torque cell. Accordingly, the torque cell structure provides several advantages over the conventional mobile terminal housing, such as: better torsional rigidity, simplified assembly, improved volumetric efficiency, reduced need for shock absorbing materials, lighter overall weight, decoupling of impact loads, and mitigation of stress concentrations.
Claims18
A hand held mobile terminal housing comprising:
- an upper housing having a peripherally disposed elastomeric seal;
- a lower housing that slidably engages with the upper housing via a plurality of interlocking joints to vise the elastomeric seal and create a torsionally stiff structure, the plurality of interlocking joints are evenly distributed about entire lateral members of a perimeter of the mobile terminal housing;
- and
- a modular keypad coupled to the upper housing via a plurality of interlocking joints.
A hand held mobile terminal housing comprising:
- a base housing having a first torque cell portion;
- a rear cover having a second torque cell portion which is slidably engageable with the first torque cell portion, the rear cover including a perimeter gasket interposed between the base housing and the rear cover, wherein the first and second torque cell portions comprise a plurality of interlocking joints substantially evenly distributed about entire lateral members of a perimeter of the mobile terminal housing;
- and
- a modular keypad coupled to the base housing via a plurality of interlocking joints.
A hand held mobile terminal housing comprising:
- a base portion having a plurality of first locking members substantially evenly distributed about entire lateral members of a perimeter of the base portion, the base portion including a peripherally disposed elastomeric isolate, the base portion further having a plurality of third locking members, such that the base portion can be coupled to a plurality of fourth locking members in a handle portion to form a gun-shaped mobile terminal or a plurality of fifth locking members in a rear cover to form a bar-shaped mobile terminal;
- and
- a modular keypad having a plurality of second locking members substantially evenly distributed about entire lateral members of a perimeter of the modular keypad.
A hand held mobile terminal housing comprising:
- an upper housing having first interlocking means;
- a lower housing having a peripheral elastomeric means and a second interlocking means, the elastomeric means interposed between the upper housing and the lower housing, and the first and second interlocking means evenly distributed about entire lateral members of a perimeter of the mobile terminal housing;
- and
- a modular keypad coupled to the upper housing via a plurality of interlocking means.
Dependencies are inferred from the claim text.