Door damping mechanism

Patent metadata

Field	Value
Publication number	US-8959710-B2
Application number	US-201113315155-A
Country	US
Kind code	B2
Filing date	Dec 8, 2011
Priority date	Dec 8, 2011
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A damping device that includes an arm having a longitudinally extending slot and a cylinder cut-out defined therein, and a damping assembly secured in the cylinder cut-out. The damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein. The piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot. The damping assembly includes a biasing member extending between the cylinder housing and the head.

First claim

What is claimed is:

1. A damping device comprising:
an arm having first and second opposite ends, wherein the arm includes a longitudinally extending slot and a cylinder cut-out that are both defined therein at a position between the first and second opposite ends, and
a damping assembly secured in the cylinder cut-out, wherein the damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein, wherein the piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot at a position between the first and second opposite ends, wherein the damping assembly includes a biasing member extending between the cylinder housing and the head.

2. The damping device of claim 1 wherein the damping assembly is secured in the cylinder cut-out by a housing that at least partially surrounds the cylinder housing and a portion of the arm.

3. The damping device of claim 2 wherein the housing includes separate upper and lower housing members that are secured to upper and lower surfaces of the arm, respectively.

4. The damping device of claim 3 wherein the upper and lower housing members each include a securing portion that engages the cylinder housing and at least one flange that is secured to the upper or lower surface of the arm.

5. The damping device of claim 4 wherein the securing portions of the upper and lower housing members include a longitudinally extending opening defined therein.

6. The damping device of claim 1 wherein the arm includes a slot narrowing restriction that divides the slot into first and second portions.

7. A damping device comprising:
an arm that includes a longitudinally extending slot and a cylinder cut-out defined therein, and
a damping assembly secured in the cylinder cut-out, wherein the damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein, wherein the piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot, wherein the damping assembly includes a biasing member extending between the cylinder housing and the head, wherein the arm includes a bridge member that spans the width of the slot.

8. The damping device of claim 7 wherein the bridge member is curved and includes a concave surface that defines a trough through which the piston rod extends.

9. A damping device comprising:
an arm that includes a longitudinally extending slot and a cylinder cut-out defined therein, and
a damping assembly secured in the cylinder cut-out, wherein the damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein, wherein the piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot, wherein the damping assembly includes a biasing member extending between the cylinder housing and the head, wherein the piston head includes a concave surface that is configured to contact a pin positioned in the slot.

10. A door assembly comprising:
a door frame,
a door hingedly connected to the door frame, and
a damping device extending between the door and the door frame, the damping device comprising:
an arm having first and second opposite ends and including a longitudinally extending slot and a cylinder cut-out that are both defined therein at a position between the first and second opposite ends, wherein the arm further includes an opening defined adjacent the first end, wherein the arm includes a first pin extending through the opening and into one of the door or the door frame and a second pin extending through the slot and into the other of the door or the door frame, and
a damping assembly secured in the cylinder cut-out, wherein the damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein, wherein the piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot at a position between the first and second opposite ends, wherein the damping assembly includes a biasing member extending between the cylinder housing and the head.

11. The door assembly of claim 10 wherein the arm includes a bridge member that spans the width of the slot.

12. The door assembly of claim 11 wherein the bridge member is curved and includes a concave surface that defines a trough through which the piston rod extends.

13. The door assembly of claim 10 wherein the piston head includes a concave surface that is configured to contact the second pin when the door is closed.

14. The door assembly of claim 10 wherein the damping assembly is secured in the cylinder cut-out by a housing that at least partially surrounds the cylinder housing and a portion of the arm.

15. The door assembly of claim 14 wherein the housing includes separate upper and lower housing members that are secured to upper and lower surfaces of the arm, respectively.

16. The door assembly of claim 15 wherein the upper and lower housing members each include a securing portion that engages the cylinder housing and at least one flange that is secured to the upper or lower surface of the arm.

17. The door assembly of claim 16 wherein the securing portions of the upper and lower housing members include a longitudinally extending opening defined therein.

18. The door assembly of claim 10 wherein the arm includes a slot narrowing restriction that divides the slot into first and second portions, and a slit that extends from the slot to an outer surface of the arm.

19. A damping device comprising:
an arm that includes a longitudinally extending slot and a cylinder cut-out defined therein, wherein the arm further includes a bridge member that spans the width of the slot, wherein the bridge member is curved and includes a concave surface that defines a trough,
a damping assembly positioned in the cylinder cut-out, wherein the damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein, wherein the piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot, wherein the rod extends through the trough in the bridge member, wherein the damping assembly includes a biasing member extending between the cylinder housing and the head, wherein the piston head includes a concave surface that is configured to contact a pin positioned in the slot, and
a housing that includes separate upper and lower housing members that are secured to upper and lower surfaces of the arm, respectively, wherein the upper and lower housing members each include a securing portion that that secures the damping assembly in the cut-out and at least one flange that is secured to the upper or lower surface of the arm, wherein the securing portions of the upper and lower housing members include a longitudinally extending opening defined therein.

Assignees

• Wach Ryan Robert
• Roche John Michael
• Madireddi Sesha
• Kunapuli Raghujit
• Anthony Inc

Inventors

• Wach Ryan Robert
• Roche John Michael
• Madireddi Sesha
• Kunapuli Raghujit

Classifications

• E05C17/16

  pivoted only at one end and having an elongated slot · CPC title

• E05B17/0041

  Damping means (for vehicles E05B77/42; time locks with retarders E05B43/00) · CPC title

• E05F5/02 Primary

  specially for preventing the slamming of {swinging} wings {during final closing movement, e.g. jamb stops} · CPC title

• E05Y2201/218

  Holders · CPC title