US 4,527,821 AGranted

Latch device for door or lid

AssigneeNifco Inc.

InventorToshie Tanaka

Life of this patent

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Abstract

A latch device for a door or lid comprises a housing, a latch pawl one end of which is secured to the housing and the other end of which is configured to engage an edge of the door or lid, a latch body having a resilient piece for controlling the attitude of the latch pawl, a knob, and a connecting section disposed between the knob and the resilient piece to release the engagement of the latch pawl with the open edge through the resilient piece by pulling the knob.

Claims6

Dependent claims

A plastic latch device adapted for mounting in an apertured door or lid, comprising:

a latch body having (1) a flange-like head and a depending stud-like hollow housing including snap engaging means for mounting by telescoping in the aperture of said door or lid, said housing having an opening on opposite sides thereof and including a pair of axially extending spaced side walls interconnected at their free end opposite said head by endwall means, said spaced sidewalls defining said opposite openings, (ii) at least one latch pawl one end of which is resiliently secured by suitable means to said housing endwall means and the other of which is configured to extend laterally from within said housing and adapted to extend through said opening engage an edge of an opening penetrated by said stud-like housing and closed by said door or lid, and (iii) said suitable means including a resilient piece capable of assuming a first attitude wherein said at least one latch pawl is normally projected from an opening at the side of said housing and a second attitude wherein said pawl is retracted inwardly of the housing, said resilient piece normally being urged to assume said first attitude;
a knob including a head portion normally positioned adjacent said flange-like head and adapted to be gripped by an operator;
and a connecting section disposed between said knob head portion and said resilient piece to move said resilient piece from said first attitude to said second attitude by axially pulling said knob portion away from said housing head said latch body flange-like head being recessed to accept said knob head portion in flush array, said knob head portion being normally flat and generally perpendicular to said connecting section, said knob head portion further including at least one centrally disposed transverse hinge line whereby oppositely extending margins of said knob can be brought into juxtaposed relationship generally coaxial with said connecting section for gripping by said operator

Dependencies are inferred from the claim text.

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Abstract

A plastic latch device adapted for mounting in an apertured door or lid, comprising:

a latch body having (1) a flange-like head and a depending stud-like hollow housing including snap engaging means for mounting by telescoping in the aperture of said door or lid, said housing having an opening on opposite sides thereof and including a pair of axially extending spaced side walls interconnected at their free end opposite said head by endwall means, said spaced sidewalls defining said opposite openings, (ii) at least one latch pawl one end of which is resiliently secured by suitable means to said housing endwall means and the other of which is configured to extend laterally from within said housing and adapted to extend through said opening engage an edge of an opening penetrated by said stud-like housing and closed by said door or lid, and (iii) said suitable means including a resilient piece capable of assuming a first attitude wherein said at least one latch pawl is normally projected from an opening at the side of said housing and a second attitude wherein said pawl is retracted inwardly of the housing, said resilient piece normally being urged to assume said first attitude;
a knob including a head portion normally positioned adjacent said flange-like head and adapted to be gripped by an operator;
and a connecting section disposed between said knob head portion and said resilient piece to move said resilient piece from said first attitude to said second attitude by axially pulling said knob portion away from said housing head said latch body flange-like head being recessed to accept said knob head portion in flush array, said knob head portion being normally flat and generally perpendicular to said connecting section, said knob head portion further including at least one centrally disposed transverse hinge line whereby oppositely extending margins of said knob can be brought into juxtaposed relationship generally coaxial with said connecting section for gripping by said operator