Detented and dampened hinge mechanism

• US 20020170143A1
• Filed: 05/11/2002
• Published: 11/21/2002
• Est. Priority Date: 05/12/2001
• Status: Active Grant

• Current Assignee: Southco Incorporated (South Chester Tube Company)
• Original Assignee: Southco Incorporated (South Chester Tube Company)
• Inventors: Vitry, Fabrice
• Granted Patent: US 6,662,405 B2
• Time in Patent Office: Days
• US Class Current: 16/231
• CPC Class Codes: B60R 7/06 mounted on or below dashboards
• CPC Class Codes: E05B 17/0041 Damping means for vehicles E05B77/42; time locks with retarders E05B43/00
• CPC Class Codes: E05C 17/32 consisting of two or more pivoted rods
• CPC Class Codes: E05C 17/38 with a curved rail rigid with the frame for engagement with means on the wing, or vice versa
• CPC Class Codes: E05F 1/1261 for counterbalancing
• CPC Class Codes: E05F 5/00 Braking devices, e.g. checks; Stops; Buffers construction of pneumatic or liquid braking devices E05F3/00; braking devices, buffers or end stops on drawers for tables, cabinets or like furniture A47B88/473; combined with devices for holding wings open E05C17/00; devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing E05C17/04
• CPC Class Codes: E05F 5/10 with piston brakes
• CPC Class Codes: E05Y 2201/21 Brakes
• CPC Class Codes: E05Y 2201/254 Fluid or viscous friction
• CPC Class Codes: E05Y 2201/266 rotary
• CPC Class Codes: E05Y 2900/538 Interior lids

Abstract

A detented and dampened hinge mechanism with push-pull and pull-push operation is disclosed. The present invention relates generally to a hinge mechanism that includes a first arm and a second arm that are pivotally connected to one another such that the arms can be moved relative to one another between a closed position and an open position. A damper is fitted into a cutout of the second arm such that the damper can engage with a length of teeth of the first arm when the hinge mechanism moves between the open and closed positions. Biasing means is fitted between hooks or bosses of the arms, and biases the first and second arms toward the open position.

Claims

1. A scissor-type arm hinge mechanism for opening and closing a swinging structure, with a push-pull and pull-push operation, comprising:

a first fixed arm mounted to a fixture;

a second movable arm pivotally connected to said first arm, said second arm connected to said swinging structure thereby moving it when said second arm is pivoted between open and closed positions;

a curvilinear guide way in one of said arms for defining the arc swing of the movable arm with respect to the fixed arm;

an articulation guide way in the other of said arms, extending radially from the arched path of said articulation guide way; and

means for biasing said first and second arms to a selected position.

2. The hinge mechanism of claim 1 also including means for controlling the rate of movement between said first and second arms when moving between open and closed positions.

3. The hinge mechanism of claim 2 wherein said biasing means biases said first and second arms to the open position.

4. The hinge mechanism of claim 3 wherein said rate of movement controlling means is a dampener.

5. The hinge mechanism of claim 4 also including:

an elongated pivot journal in said movable arm;

a mating pivot boss extending from said fixed arm through said pivot journal, wherein said movable arm pivots on said fixed arm by said elongated pivot journal; and

wherein said curvilinear guide way traverses said fixed arm;

also including a cam follower guide member extending from said movable arm and riding in said fixed arm guide way.

6. The hinge mechanism of claim 4 wherein said biasing means is a spring being positioned to pull in a tangential direction against the outward movement of said movable arm with respect to said fixed arm and the to pull in the open position rotated direction.

7. The hinge mechanism of claim 5 also including a gravity detent at the open position end of said fixed arm guide way, said gravity detent holding the open position against the force of the spring.

8. The hinge mechanism of claim 6 wherein said damper includes:

a toothed track on said fixed arm;

a pinion gear rotateably mounted on said movable arm and positioned to engage said fixed arm toothed track; and

a friction-type clutch operating against the rotational acceleration and deceleration of said pinion gear.

9. The hinge mechanism of claim 7 wherein said gravity detent is at the open position of said fixed arm guide way.

10. The hinge mechanism of claim 8 wherein said toothed track has a downward curved ramp section at the closed position end thereof, said downward curved ramp section acting with said pinion gear against the closed position force of said spring to created a closed position detent action.

11. The hinge mechanism of claim 9 wherein said pivot boss, said elongated pivot journal, said curvilinear guide way and said toothed track and pinion gear cooperate against the spring force to permit said movable arm to move radially outwardly as it rotates from the closed position to the open position and to move radially inwardly as it rotates from the open position to the closed position.

12. The hinge mechanism of claim 10 wherein said cam follower guide member engages the inward side of said guide way as the movable arm is moved to the closed position, and engages the outward side of said guide way as the movable arm is moved to the open position.

13. The hinge mechanism of claim 1, wherein said articulation guide way is a radially extending open slot at the outward end of said movable arm being away from the pivoting end of said arm.

14. The hinge mechanism of claim 5, also including a rectangular detent associated with said pivot boss and a hook member associated with said pivot journal, said hook member engaging said rectangular detent when said movable arm moves to said closed position.

16. The hinge mechanism of claim 15 wherein said track is a toothed track and said damper is a friction gear engaging said tooth track;

wherein said receiving structure is a cutout of said second arm in which said friction gear is mounted; and

wherein said biasing means is a spring member which biases said first and second arms to the open position.

17. The hinge mechanism of claim 16 also including a curvilinear cam path in said first arm and a cam follower on said second arm for engaging said first arm cam path.

18. The hinge mechanism of claim 17 wherein said first and second arms pivotal connection permits articulated motion of said arms in a radial direction to said pivotal arc motion.

20. The detented and dampended hinge mechanism of claim 19, wherein said dampening structure includes a rack mounted to one elongate member and a pinion mounted to the other elongate member, said pinion operating against said rack, said pinion including a rotation acceleration—

deceleration inhibitor structure.

15. A hinge mechanism, comprising:

a first arm;

a second arm pivotally connected to the first arm, whereby said arms are moved relative to one another between a closed position and an open position, said second arm having a receiving structure thereon;

a damper fitted on said second arm receiving structure;

a track positioned on said first arm for said damper to operate against when said first and second arms move between said first and second positions; and

means biasing said first and second arms to a selected position.

19. A detented and dampened hinge mechanism with push-pull operation, comprising:

a first elongate fixed member mountable to a first structure;

a second elongate movable member mountable to a second structure, said first and second members being pivotally connected for movement in a plane relative to the elongate extension of each;

a dampening structure operating between the first and second elongate members to control the relative rate of pivoting motion there between, said dampening structure including a rotating member which operates against one of said elongate members; and

a detent for holding said first and second elongate members in a selected pivoted position.