Soffit plate and limit stop for use with hydraulic door closer
AssigneeReading Door Closer Corporation
InventorStanley B. Reichlin
Life of this patent
Estimating the term…
Abstract
A resilient element coupled to a soffit plate provides a means for first resiliently and then non-resiliently limiting movement of a control arm associated with a hydraulic door closer, to thereby cushion and limit movement of a door to its extreme open position.
Claims9
For use in combination with a door, a door closer and at least one arm operatively interconnecting said door and said door closer, a soffit plate having thereon a pivot point for said arm and a limit stop adapted to contact said arm to first resiliently and then nonresiliently limit movement of said door, said limit stop being spaced from said pivot point and comprising a dead stop member disposed in the path of movement of said arm and defining a limit position of the door, and spring means disposed in the path of movement of said arm, said spring means comprising a leaf spring having a first portion thereof coupled to said soffit plate adjacent to said dead stop member and another portion thereof remote from said first portion and said dead stop member, said arm engaging and deforming said other portion when said arm approaches a position corresponding to a limit position of the door, said spring means being so positioned with respect to said arm and said dead stop member that deformation of said leaf spring permits said arm to engage said dead stop member when said arm reaches a position corresponding to a limit position of the door.
A soffit plate for use in conjunction with a hydraulic door closer and having a non-directional stop thereon for first resiliently and then non-resiliently limiting movement of a control arm associated with the closer and said soffit plate, said stop comprising a dead stop member affixed to said soffit plate and spring means coupled to said soffit plate adjacent said dead stop member, a pivot point on said soffit plate spaced from said dead stop member and said spring means, said pivot point providing means for pivotably securing the control arm to said soffit plate, said spring means being resiliently deformable and positioned for contact with the control arm when said soffit plate is operatively disposed, said spring means being so positioned with respect to said dead stop member that movement of the control arm is limited by said dead stop member.
Dependencies are inferred from the claim text.