US 4,899,561 AGranted

Pop-out handle lock assembly

AssigneeFort Lock Corporation

InventorGary L. Myers

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Abstract

A pop-out handle lock assembly wherein the handle engagement and connecting means is a two part construction including a rotatable shaft having a head end with a transverse slot and a generally T-shaped holder member made of flat sheet material is pivotally held in the slotted head end of the shaft so as to eliminate binding or interference with the freedom of the handle to pop out or to be pushed into the locked retracted position.

Claims4

Dependent claims

In a pop-out handle lock assembly containing a lock cylinder mechanism, the combination comprising:

(a) a cylindrical open-ended housing having at its front end a radially outwardly extending rim flange with a shallow elongated recess in the forward end of the flange, the rearward end of said housing having a first central bearing opening,
(b) a handle housing having a cylindrical portion adapted to be telescopically received in a central cylindrical portion of the rim flange housing so as to be slidable inwardly and outwardly, the inner end of said handle housing having a second central bearing opening and the outer end of said handle housing having a central opening receiving the lock cylinder mechanism and at least one radially outwardly extending arm defining an operating handle shaped to be received in the rim flange recess when the handle is in its inward most locked position,
(c) latch bolt means operated by said lock cylinder mechanism engageable with the cylindrical rim flange housing for maintaining said handle portion in its innermost locked position until released by an appropriate key in said lock cylinder mechanism to allow the handle to slide outwardly from said rim flange housing,
(d) compression spring means disposed between the inside rear end of the rim flange cylindrical housing and the outside inner end of the handle cylindrical housing so as to normally urge said handle housing to its outwardly projecting position when the latch bolt is released,
(e) shaft means fixedly rotatably mounted within the first central bearing opening of said cylindrical rim flange housing, the rearward end of said shaft means projecting outwardly and having connecting means thereon for coupling with a complementary locking member, the inward end of said shaft means having a head portion including a transverse slot and perpendicularly disposed pivot pin openings, said shaft head being adapted to project into the central bearing opening of said handle housing when the handle housing is in its fully retracted position,
(f) a generally T-shaped holder member made of flat plate material having an aperture adjacent its lower end and adapted to be received in the transverse slot of the shaft head, the holder member being pivotally mounted to said shaft head by pin means positioned within the pivot pin openings and holder member aperture;
and,
(g) the outer end of said T-shaped holder member having radially projecting arms adapted to engage with slot means adjacent the lower inner end of the handle housing cylindrical portion when the handle is in its fully outwardly extended position so as to permit rotation of the holder member and shaft means upon rotation of the handle in its outward extended position.

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Dependencies are inferred from the claim text.

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Abstract

In a pop-out handle lock assembly containing a lock cylinder mechanism, the combination comprising:

(a) a cylindrical open-ended housing having at its front end a radially outwardly extending rim flange with a shallow elongated recess in the forward end of the flange, the rearward end of said housing having a first central bearing opening,
(b) a handle housing having a cylindrical portion adapted to be telescopically received in a central cylindrical portion of the rim flange housing so as to be slidable inwardly and outwardly, the inner end of said handle housing having a second central bearing opening and the outer end of said handle housing having a central opening receiving the lock cylinder mechanism and at least one radially outwardly extending arm defining an operating handle shaped to be received in the rim flange recess when the handle is in its inward most locked position,
(c) latch bolt means operated by said lock cylinder mechanism engageable with the cylindrical rim flange housing for maintaining said handle portion in its innermost locked position until released by an appropriate key in said lock cylinder mechanism to allow the handle to slide outwardly from said rim flange housing,
(d) compression spring means disposed between the inside rear end of the rim flange cylindrical housing and the outside inner end of the handle cylindrical housing so as to normally urge said handle housing to its outwardly projecting position when the latch bolt is released,
(e) shaft means fixedly rotatably mounted within the first central bearing opening of said cylindrical rim flange housing, the rearward end of said shaft means projecting outwardly and having connecting means thereon for coupling with a complementary locking member, the inward end of said shaft means having a head portion including a transverse slot and perpendicularly disposed pivot pin openings, said shaft head being adapted to project into the central bearing opening of said handle housing when the handle housing is in its fully retracted position,
(f) a generally T-shaped holder member made of flat plate material having an aperture adjacent its lower end and adapted to be received in the transverse slot of the shaft head, the holder member being pivotally mounted to said shaft head by pin means positioned within the pivot pin openings and holder member aperture;
and,
(g) the outer end of said T-shaped holder member having radially projecting arms adapted to engage with slot means adjacent the lower inner end of the handle housing cylindrical portion when the handle is in its fully outwardly extended position so as to permit rotation of the holder member and shaft means upon rotation of the handle in its outward extended position.

5 more elements