Furniture hinge
First Claim
1. A furniture hinge comprising a first hinge arm and a second hinge arm, inner and outer pivot levers connected between the hinge arms, a coil spring within the first hinge arm, the coil spring having an axis extending lengthwise of the first hinge arm, a control cam on the inner pivot lever within the first hinge arm, a transverse pin within the first hinge arm trapped between the control cam and the spring for transmitting forces between the control cam and the spring, and elongate slot formations formed in the first hinge arm for carrying said pin, the slot formations being inclined with respect to said axis, the pin being movable along the slot formations between an open position of the hinge wherein the pin is urged toward one end of the slot formations by the control cam thereby compressing the spring and a closed position of the hinge wherein the pin is urged toward an opposite end of the slot formations by rotation of the control cam and extension of the spring.
1 Assignment
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Accused Products
Abstract
A furniture hinge has a first hinge arm and a second hinge arm which are interconnected by inner and outer pivot levers. The inner pivot lever carries a control cam within the first hinge arm for cooperating with an internal coil spring so that the hinge can snap between open and closed positions. A transverse pin within the first hinge arm transmits force between the spring and the control cam. The pin is carried in elongate slots which are inclined with respect to the longitudinal axis of the coil spring. In the closed position of the hinge, the pin engages a snapping section of the control cam and in the open position of the hinge the pin engages a radiused sliding section of the cam.
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Citations
3 Claims
- 1. A furniture hinge comprising a first hinge arm and a second hinge arm, inner and outer pivot levers connected between the hinge arms, a coil spring within the first hinge arm, the coil spring having an axis extending lengthwise of the first hinge arm, a control cam on the inner pivot lever within the first hinge arm, a transverse pin within the first hinge arm trapped between the control cam and the spring for transmitting forces between the control cam and the spring, and elongate slot formations formed in the first hinge arm for carrying said pin, the slot formations being inclined with respect to said axis, the pin being movable along the slot formations between an open position of the hinge wherein the pin is urged toward one end of the slot formations by the control cam thereby compressing the spring and a closed position of the hinge wherein the pin is urged toward an opposite end of the slot formations by rotation of the control cam and extension of the spring.
Specification