Granted Patent B2

US 12,631,061 · App. 17/961,389 · Granted May 19, 2026

Inventor: George Larson (Roseville, MN)

Assignee: Reell Precision Manufacturing Corporation

E05D3/12E05D11/02E05D11/082B29C45/14336B29L2031/22E05Y2800/46E05Y2800/676E05Y2900/132

Abstract

Claims (51)

1 . An overmolded friction hinge device comprising:

a first and a second shaft, each having first and second ends;

a first friction element mounted on the first shaft;

a first molded housing at least partially enclosing the first shaft;

a first hinged element coupled to the first molded housing, the first hinged element comprising a heavy panel;

a second molded housing at least partially enclosing the second shaft;

a second hinged element coupled to the second molded housing;

a first molded outer link at least partially enclosing each of the first and second shafts; and

a second molded outer link at least partially enclosing each of the first and second shafts;

wherein one of the first molded housing and the first molded outer link are overmolded over and enclose the first friction element such that first friction element is embedded within one of the first molded housing and the first molded outer link such that there is no relative movement between the first friction element and the first molded housing or the first molded outer link;

wherein a torque is produced by the relative rotation of the first and second hinged elements and wherein weight of the panel is such that the torque produced is greater than 1 Nm;

wherein, when the first and second hinged elements are in an open position, each of the first and second molded housings has a surface facing the first and second molded outer links that are sloped away from the first and second molded outer links thereby defining a gap between the first and second molded housings and the first and second molded outer links; and

wherein the surfaces of the first and second molded housings engage the first and second molded outer links when the first and second hinged elements are in a closed position.

2 . The overmolded hinge device of claim 1 , wherein the first and second hinged elements have an upper surface and mounting features to which first and second molded housings are coupled such that the first and second molded housings are recessed relative to the upper surfaces and no part of the first and second molded housings and no part of the first and second molded links extend above the respective upper surfaces of their respective hinged elements.

3 . The overmolded hinge device of claim 1 , further comprising a second friction element mounted on the second shaft.

4 . The overmolded hinge device of claim 3 , wherein the first friction element comprises a first plurality of clips and the second friction element comprises a second plurality of clips, wherein the number of clips of the first plurality of clips is less than the number of clips of the second plurality of clips such that the torque on the first shaft is less than the torque on the second shaft.

5 . The overmolded hinge device of claim 4 , wherein the first and second shafts travel with the second hinged element as the second hinged element is rotated relative to the first hinged element due to the lesser torque on the first shaft relative to the second shaft.

6 . The overmolded hinge device of claim 1 , wherein the first molded outer link at least partially encloses the first end of each of the first and second shafts, and wherein the second molded outer link at least partially encloses the second ends of each of the first and second shafts.

7 . The overmolded hinge device of claim 3 , wherein one of the second molded housing, first molded outer link, and second molded outer link at least partially encloses the second friction element and the second shaft.

8 . The overmolded hinge device of claim 1 , wherein the first molded housing does not enclose any portion of the second shaft and wherein the second molded housing does not enclose any portion of the first shaft.

9 . The overmolded hinge device of claim 1 , wherein the first and second ends of each of the first and a second shafts comprise knurls.

10 . An overmolded friction hinge device comprising:

a first and a second shaft, each having first and second ends;

a first friction element mounted on the first shaft;

a first molded housing at least partially enclosing the first shaft;

a first hinged element coupled to the first molded housing;

a second molded housing at least partially enclosing the second shaft;

a second hinged element coupled to the second molded housing;

a first molded outer link at least partially enclosing each of the first and second shafts; and

a second molded outer link at least partially enclosing each of the first and second shafts;

wherein, when the first and second hinged elements are in an open position, each of the first and second molded housings has a surface facing the first and second molded outer links that are sloped away from the first and second molded outer links thereby defining a gap between the first and second molded housings and the first and second molded outer links;

wherein the surfaces of the first and second molded housings engage the first and second molded outer links when the first and second hinged elements are in a closed position;

wherein one of the first molded housing and the first molded outer link are overmolded over and enclose the first friction element such that first friction element is embedded within one of the first molded housing and the first molded outer link such that there is no relative movement between the first friction element and the first molded housing or the first molded outer link; and

wherein the relative rotation of the first and second hinged elements about the first shaft produces a first torque, wherein the relative rotation of the first and second hinged elements about the second shaft produces a second torque, and where the first torque is different than the second torque.

11 . The overmolded hinge device of claim 10 , wherein the first hinged element comprises a weighted panel, wherein a torque is produced by the relative rotation of the first and second hinged elements and wherein weight of the panel is such that the torque produced is greater than 1 Nm.

12 . The overmolded hinge device of claim 10 , wherein the first and second hinged elements have an upper surface and mounting features to which first and second molded housings are coupled such that the first and second molded housings are recessed relative to the upper surfaces and no part of the first and second molded housings and no part of the first and second molded links extend above the respective upper surfaces of their respective hinged elements.

13 . The overmolded hinge device of claim 10 , further comprising a second friction element mounted on the second shaft.

14 . The overmolded hinge device of claim 13 , wherein the first friction element comprises a first plurality of clips and the second friction element comprises a second plurality of clips, wherein the number of clips of the first plurality of clips is less than the number of clips of the second plurality of clips such that the torque on the first shaft is less than the torque on the second shaft.

15 . An overmolded friction hinge device comprising:

a first and a second shaft, each having first and second ends;

a first friction element mounted on the first shaft;

a second friction element mounted on the second shaft;

a first molded housing at least partially enclosing the first shaft;

a first hinged element coupled to the first molded housing, the first hinged element comprising a heavy panel;

a second molded housing at least partially enclosing the second shaft;

a second hinged element coupled to the second molded housing;

a first molded outer link at least partially enclosing each of the first and second shafts; and

a second molded outer link at least partially enclosing each of the first and second shafts;

wherein one of the first molded housing and the first molded outer link are overmolded over and enclose the first friction element such that first friction element is embedded within one of the first molded housing and the first molded outer link such that there is no relative movement between the first friction element and the first molded housing or the first molded outer link; and

wherein a torque is produced by the relative rotation of the first and second hinged elements between an open position and a closed position, and wherein weight of the panel is such that the torque produced is greater than 1 Nm; and

wherein in the open position each of the first and second molded housings has a surface facing the first and second molded outer links that are sloped away from the first and second molded outer links thereby defining a gap between the first and second molded housings and the first and second molded outer links, and wherein in the closed position the surfaces of the first and second molded housings engage the first and second molded outer links.

Assignments (1)

Continuity (3)

References Cited (46)