Device for damping the movement of a movably supported structural part, in particular of a flap in an automotive vehicle of the like

• US 5,887,930 A
• Filed: 11/18/1996
• Issued: 03/30/1999
• Est. Priority Date: 11/16/1995
• Status: Expired due to Term

• Current Assignee: ITW Ateco GmbH (Illinois Tool Works Inc.)
• Original Assignee: ITW Ateco GmbH (Illinois Tool Works Inc.)
• Inventors: Klein, Roland
• Primary Examiner(s): Dayoan, D. Glenn
• Assistant Examiner(s): PATEL, KIRAN B
• Application Number:
  US08/746,954
• Time in Patent Office: 862 Days
• Field of Search: 296/37.7, 296/37.1, 296/37.8, 296/37.9, 296/37.12, 296/37.13, 16/82, 16/348, 16/354, 16/325, 16/357, 16/361, 16/360, 49/336, 49/334, 49/341, 49/350, 312/315.1, 312/315.2
• US Class Current: 296/37.12
• CPC Class Codes: B62D 25/12 Parts or details thereof locks E05B, E05B83/16; devices for holding open E05C17/00, e.g. while carrying oversize objects E05C17/042; hinges E05D; counterbalancing means E05F; checks, stops, buffers E05F5/00; springs, e.g. pneumatic springs F16F
• CPC Class Codes: E05F 3/14 with fluid brakes of the rotary type
• 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: 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
• CPC Class Codes: F16F 9/145 involving only rotary movement of the effective parts wing closers or openers with fluid brakes of the rotary type E05F3/14

Abstract

A device for damping the movement of a movably supported structural part, in particular of a flap or the like in an automotive vehicle, where a tooth segment is located on the structural part, the tooth segment co-operating with a pinion which is associated with a rotary damping element and stationarily located relative to the structural part, whereby the rotary damping element is attached to a pivotally supported arm, in that the rotary damping element or the arm, respectively, has an extension, a guide portion being provided at the free end of the arm which co-operates with a guide path on the structural part such that the distance between the pinion and the tooth segment remains approximately constant.

Claims

1. A device for damping the movement of a movably supported structural part, comprising:

a toothed segment disposed upon said structural part; and

a rotary damping element comprising a housing, a toothed pinion mounted upon said housing for rotatable engagement with said toothed segment of said structural part as said structural part is moved, and a means extending from said housing of said rotary damping element and engaged with said structural part for maintaining said toothed pinion of said rotary damping element rotatably engaged with said toothed segment of said structural part as said structural part is moved.

2. The device as set forth in claim 1, wherein:

said structural part has an arcuate slot portion defined therein; and

said means mounted upon said rotary damping element comprises a guide portion disposed within said arcuate slot of said structural part such that toothed segment of said structural part is effectively trapped between said guide portion and said toothed pinion of said rotary damping element.

3. The device as set forth in claim 1, wherein:

said structural part comprises an automotive vehicle glove compartment cover.

4. The device as set forth in claim 1, wherein:

said rotary damping element comprises a one-way rotary damping element.

5. The device as set forth in claim 3, wherein:

stop means is disposed upon said structural part for engaging a frame portion of an automotive vehicle glove compartment assembly so as to limit the degree to which said automotive vehicle glove compartment cover is permitted to be opened.

6. The device as set forth in claim 1, wherein:

said rotary damping element is pivotally mounted at a position adjacent to said structural part; and

spring means are provided for pivotally biasing said rotary damping element such that said toothed pinion is biased into engagement with said toothed segment of said structural part.

7. The device as set forth in claim 4, wherein:

said one-way rotary damping element comprises said housing, a damping fluid disposed within said housing, a rotor immersed within said damping fluid, and a coil spring disposed about said rotor and having one end thereof operatively connected to said toothed pinion such that when said toothed pinion is rotated in a first direction, the diametrical extent of said coil spring will be reduced so as to cause said rotor to rotate within said damping fluid, whereas when said toothed pinion is rotated in a second opposite direction, the diametrical extent of said coil spring is not reduced so as to permit said toothed pinion to rotate without inducing corresponding rotation of said rotor.

20. The device as set forth in claim 6, wherein:

said means for pivotally mounting said rotary damping element comprises a bushing; and

said spring biasing means comprises a coil spring mounted upon said bushing.

8. A device for damping the movement of a movably supported structural part, comprising:

a toothed segment disposed upon said structural part;

a rotary damping element having a toothed pinion mounted thereon for rotatable engagement with said toothed segment of said structural part as said structural part is moved;

means for pivotally mounting said rotary damping element at a position adjacent to said structural part; and

spring means operatively engaged with said rotary damping element for pivotally biasing said rotary damping element toward said structural part such that said toothed pinion of said rotary damping element is maintained rotatably engaged with said toothed segment of said structural part as said structural part is moved.

9. The device as set forth in claim 8, wherein:

said means for pivotally mounting said rotary damping element at a position adjacent to said structural part comprises a bushing; and

said spring biasing means comprises a coil spring mounted upon said bushing.

10. The device as set forth in claim 8, further comprising:

arcuate slot means defined within said structural part; and

guide means mounted upon said rotary damping element and disposed within said slot means of said structural part such that said toothed segment of said structural part is effectively trapped between said guide means and said toothed pinion of said rotary damping element.

11. The device as set forth in claim 10, wherein:

said structural part comprises an automotive vehicle glove compartment cover;

said arcuate slot means is defined within an arcuately shaped arm portion integral with said glove compartment cover; and

stop means are provided upon said arm portion of said glove compartment cover for engaging a frame portion of an automotive vehicle glove compartment assembly so as to limit the degree to which said glove compartment cover is permitted to be opened.

12. The device as set forth in claim 8, wherein:

said rotary damping element comprises a one-way rotary damping element.

13. The device as set forth in claim 12, wherein said one-way rotary damping element comprises:

a housing;

a damping fluid disposed within said housing;

a rotor disposed within said housing and immersed within said damping fluid; and

a coil spring disposed about said rotor and having one end thereof operatively connected to said toothed pinion such that when said toothed pinion is rotated in a first direction, the diametrical extent of said coil spring will be reduced so as to operatively connect said rotor with said toothed pinion whereby rotation of said toothed pinion will be damped as a result of damped rotation of said rotor within said damping fluid, whereas when said toothed pinion is rotated in a second opposite direction, the diametrical extent of said coil spring is not reduced so as to permit said toothed pinion to rotate without inducing corresponding damped rotation of said rotor.

15. The device as set forth in claim 9, wherein:

said structural part comprises an automotive vehicle glove compartment cover.

14. A device for damping the movement of a movably supported structural part, comprising:

a structural part having a toothed segment disposed upon said structural part and an arcuate slot defined within said structural part;

a rotary damping element comprising a housing, a toothed pinion mounted upon said housing for rotatable engagement with said toothed segment of said structural part as said structural part is moved, and a guide means mounted upon and extending from said housing of said rotary damping element so as to be disposed within said arcuate slot of said structural part such that said toothed segment of said structural part is effectively trapped between said guide means and said toothed pinion of said rotary damping element whereby said toothed pinion of said rotary damping element is maintained rotatably engaged with said toothed segment of said structural part as said structural part is moved.

16. The device as set forth in claim 14, further comprising:

means for pivotally mounting said rotary damping element at a position adjacent to said structural part; and

spring biasing means for pivotally biasing said rotary damping element into engagement with said toothed segment of said structural part.

17. The device as set forth in claim 14, wherein:

said structural part comprises an automotive vehicle glove compartment cover;

said arcuate slot is defined within an arcuately shaped arm portion integral with said glove compartment cover; and

stop means are provided upon said arm portion of said glove compartment cover for engaging a frame portion of an automotive vehicle glove compartment assembly so as to limit the degree to which said glove compartment cover is permitted to be opened.

18. The device as set forth in claim 14, wherein:

said rotary damping element comprises a one-way rotary damping element.

19. The device as set forth in claim 18, wherein said one-way rotary damping element comprises:

a housing;

a damping fluid disposed within said housing;

a rotor disposed within said housing and immersed within said damping fluid; and

a coil spring disposed about said rotor and having one end thereof operatively connected to said toothed pinion such that when said toothed pinion is rotated in a first direction, the diametrical extent of said coil spring will be reduced so as to operatively connect said rotor with said toothed pinion whereby rotation of said toothed pinion will be damped as a result of damped rotation of said rotor within said damping fluid, whereas when said toothed pinion is rotated in a second opposite direction, the diametrical extent of said coil spring is not reduced so as to permit said toothed pinion to rotate in an undamped manner as a result of said toothed pinion remaining operatively disconnected from said rotor.