Pivot assembly

Claim 2

The pivot assembly for a door member, the pivoted vertical edge of which when the door member is in the closed condition is in substantial abutting relation with a complementary vertical door frame member, said assembly including; a pintle mechanism for attachment to either the corner portion of a door member or a door frame member, and including a vertically disposed pintle device having an extremity adapted to project from the edge surface of said member; and camming means carried by the other of said door or frame members and including a base member having a recess therein defined by an internal peripheral cam surface of predetermined non-circular contour, a pintle accommodating cam member slidably and rotatably disposed in said recess, and including means for receiving the projecting extremity of said pintle device in non-rotating coupled engagement, said cam member further including a plurality of cam surface engaging lobes, such that rotation of the door member in either direction incident to opening will produce relative rotation of said pintle member and said cam member with respect to said base member, which rotation causes the lobes on said cam member to engage said cam surface to produce longitudinal movement of said cam element and said pintle mechanism relative to said base member, which movement is adapted to produce corresponding lateral displacement of a door member relative to a frame member, regardless of the opening direction.

Claim 3

A pivot assembly as defined in claim 1, wherein said pIntle accommodating cam member is of a polygonal, generally triangular configuration providing three generally equi-spaced lobes for engaging the cam surface on said base member.

Claim 4

A pivot assembly as defined in claim 1, wherein said pivotal mechanism includes a plate member having an aperture therein adapted to receive said pintle device, said pintle device including an externally threaded portion on the projecting extremity thereof, and nut means threadably engaged with said threaded portion exteriorly of said plate means to control the degree of projection of said pintle device from said plate means, and spring means operatively engaged with said pintle device to bias same in a direction opposite the direction of projection, whereby the extent of projection of said pintle device from said plate member may be adjusted, by rotation of said nut.

Claim 5

A pivot assembly according to claim 1, wherein said pintle mechanism includes, a base element adapted for fixed positioning relative to the door or frame member carrying said mechanism, and means mounting said pintle device for longitudinal slidable movement relative to said base element, whereby the position of said pintle device may be adjusted to accommodate any misalignment of said camming means.

Claim 6

A pivot assembly according to claim 4, wherein said means mounting said pintle device for lateral movement, includes a slide member carried by said base element, said slide member having an aperture formed therein through which said pintle device projects, and drive means carried by said base member and engaged with said slide member and capable, upon the operation thereof to produce lateral movement of said slide member relative to said base member.

Claim 7

A pivot assembly for a door member, the pivoted vertical edge of which when the door member is in a closed position, is in substantial abutting relation with a complementary vertical door frame member, said pivot assembly comprising; pintle means carried by one of said door or door frame members and providing a pintle device projecting therefrom; and camming means carried by the other of said door or door frame members and adapted to be mounted in alignment with said pintle means, said camming means including means for receiving said pintle projection and providing for lateral displacement of said door member relative to said frame member upon opening movement thereof, the improvement in said camming means, wherein said door may be opened in either direction, said improvement comprising; a base member having a recess formed therein, the wall surfaces of which provide camming surfaces, a generally polygonal shaped cam member disposed in said recess for both rotative and longitudinal movement relative to said base member, and including at least three generally equi-spaced lobes, and means for non-rotatably connecting said pintle projection to said cam member so that upon opening of said door member in either direction, joint rotation of said cam member and said pintle member relative to said base member will be produced thereby causing one of said lobes on the cam member to engage said camming surface, which engagement produces a longitudinal movement of the cam member relative to said base member and camming surfaces, which longitudinal movement results in said lateral displacement of the door member relative to the door frame.

Claim 8

A pivot assembly for a door member, the pivoted vertical edge of which when the door member is in a closed position, is in substantial abutting relation with a complementary vertical door frame member, said pivot assembly comprising; pintle means carried by one of said door or door frame members and providing a pintle device projecting therefrom; and camming means carried by the other of said door or door frame members and adapted to be mounted in alignment with said pintle means, said camming means including means for receiving said pintle projection and providing for lateral displacement of said door member relative to said frame member upon opening movement thereof, the improvement in said camming means, wherein said door may be opened in either direction, said improvement comprising; a base member having a recess formed therein, the wall surfaces of which provide camming surfaces, a generally polygonal shaped cam member disposed in said recess for both rotative and longitudinal movement relative to said base member, and including at least three generally equi-spaced lobes, and means for non-rotatably connecting said pintle projection to said cam member so that upon opening of said door member in either direction, joint rotation of said cam member and said pintle member relative to said base member will be produced thereby causing one of said lobes on the cam member to engage said camming surface, which engagement produces a longitudinal movement of the cam member relative to said base member and camming surfaces, which longitudinal movement results in said lateral displacement of the door member relative to the door frame.

Claim 9

A pivot assembly as defined in claim 6, wherein said pivotal mechanism includes a plate member having an aperture therein adapted to receive said pintle device, said pintle device including an externally threaded portion on the projecting extremity thereof, and nut means threadably engaged with said threaded portion exteriorly of said plate means to control the degree of projection of said pintle device from said means, and spring means operatively engaged with said pintle device to bias same in a direction opposite the direction of projection, whereby the extent of projection of said pintle device from said plate member may be adjusted, by rotatioN of said nut.

Claim 10

A pivot assembly according to claim 6, wherein said pintle mechanism includes, a base element adapted for fixed positioning relative to the door or frame member carrying said mechanism, and means mounting said pintle device for longitudinal slidable movement relative to said base element, whereby the position of said pintle device may be adjusted to accommodate any misalignment of said camming means.

Claim 11

A pivot assembly according to claim 8, wherein said means mounting said pintle device for lateral movement, includes a slide member carried by said base element, said slide member having an aperture formed therein through which said pintle device projects, and drive means carried by said base member and engaged with said slide member and capable, upon the operation thereof to produce lateral movement of said slide member relative to said base member.