Composite door lock plunger
AssigneeTrimark Corporation
InventorBarbara Pickar
Life of this patent
Estimating the term…
Abstract
An approved plunger assembly is provided for a door handle. The plunger assembly includes a metallic plunger and a plastic link, which are connected so as to slide together between extended and retracted positions. The plastic link minimizes friction between the plunger assembly and the housing of the door handle, and minimizes wear between the link and the pivot plate which moves the plunger assembly from the extended position to the retracted position. The metallic plunger provides increased wear-resistance from contact with the striker plate or frame which surrounds the door in which the door handle is mounted.
Claims14
An improved door handle having a housing with a plunger tunnel, a paddle pivotally mounted on the housing, and a pivot plate pivotally mounted on the housing for actuation by the paddle, the improvement comprising:
- a metal plunger slidably mounted in the plunger tunnel;
- and
- a plastic link having a first end connected to the plunger and a second end engaged by the pivot plate;
- whereby actuation of the paddle pivots the pivot plate to slide the link and retract the plunger within the tunnel.
An improved plunger assembly for a door handle, comprising:
- a metal plunger, and
- a plastic link,
- the plunger and link being connected so as to move together between extended and retracted positions.
A plunger assembly for a door handle, comprising:
- a plunger made from wear-resistant material;
- a link made from material having a low coefficient of friction;
- the plunger and link being connected so as to move together between extended and retracted positions.
Dependencies are inferred from the claim text.