Dampened hinge system for appliance door

• US 6,789,293 B2
• Filed: 09/27/2001
• Issued: 09/14/2004
• Est. Priority Date: 09/27/2001
• Status: Expired due to Term

• Current Assignee: Mansfield Engineered Components, Inc.
• Original Assignee: Mansfield Assemblies Co.
• Inventors: Habegger, Jeffrey D., Cummins, Steven O.
• Primary Examiner(s): Mah, Chuck Y.
• Application Number:
  US09/965,302
• Publication Number:
  US 20030056328A1
• Time in Patent Office: 1,083 Days
• Field of Search: 163/43, 163/74, 162/97, 162/89, 163/44, 163/06, 163/31, 163/32, 163/21, 163/62, 493/86, 493/89, 126/194, 126/192, 126/190
• US Class Current: 16/343
• CPC Class Codes: E05F 1/1276 for counterbalancing
• CPC Class Codes: E05F 5/10 with piston brakes
• CPC Class Codes: E05Y 2201/21 Brakes
• CPC Class Codes: E05Y 2201/256 with pistons or vanes
• CPC Class Codes: E05Y 2201/264 linear
• CPC Class Codes: E05Y 2201/478 Gas springs
• CPC Class Codes: E05Y 2201/488 Traction springs
• CPC Class Codes: E05Y 2900/308 for ovens
• CPC Class Codes: F24C 15/023 Mounting of doors, e.g. hinges, counterbalancing

Abstract

A dampened hinge and hinge system for appliances is provided. The system includes first and second hinge portions, at least one of which includes a dampener. The dampener can be a push-dampener, a pull-dampener or a push/pull-dampener. The hinge system allows for movement of the door between a closed position, a fully opened position and a secondary opened position such as a broil-stop position, and the door is self-supporting in the secondary opened position. The first and second hinge portions each include a guide channel, a claw pivotably connected to the guide channel and a link having a first end connected to the claw. The first hinge portion includes a spring having a first end connected to a second end of the link and a second end connected to the guide channel. The second hinge portion includes a dampener that is operably connected between the guide channel and the second end of the link. Both the first and second hinge portions can include a dampener.

Claims

1. A dampened hinge system for connecting an appliance door to an appliance body, said hinge system comprising:

first and second hinge portions each comprising a guide member adapted for connection to an associated appliance door, a claw pivotably connected to the guide member and adapted for engagement with an associated appliance body, and a link pivotably connected to the claw;

a spring having a first end connected to said link of said first hinge portion and a second end connected to said guide member of said first hinge portion; and

,

an unbiased dampener operably connected between said link of said second hinge portion and said guide member of said second hinge portion, wherein said second hinge portion is dampened and wherein said guide member of said second hinge portion and said claw of said second hinge portion are unbiased relative to each other.

2. The dampened hinge system as set forth in claim 1, wherein said dampener comprises one of a gas-actuated dampener and an oil-actuated dampener, said dampener comprising a housing and a rod slidably movable into and away from said housing, said rod connected to one of said guide member and said link of said second hinge portion and said housing connected to the other of said guide member and said link of said second hinge portion.

3. The dampened hinge system as set forth in claim 2, wherein said spring comprises a coil spring.

4. The dampened hinge system as set forth in claim 1, wherein said guide member of said first hinge portion and said guide member of said second hinge portion each comprise a U-shaped channel defining a recess, said spring and link of said first hinge portion at least partially located in said recess of said guide member and said dampener and said link of said second hinge portion at least partially located in said recess of said guide member of said second hinge portion.

5. The dampened hinge system as set forth in claim 1, wherein said link of said first hinge portion and said link of said second hinge portion each comprise first and second parallel link members.

6. The dampened hinge system as set forth in claim 5, wherein said first and second parallel link members are identical to each other.

7. The dampened hinge system as set forth in claim 1, wherein said dampener comprises at least one of a push-dampener, a pull-dampener and a push/pull-dampener.

8. The dampened hinge system as set forth in claim 1, wherein said first and second hinge portions are movable to a first operative position corresponding to a closed position of said associated appliance door, a second operative position corresponding to a broil-stop position of said associated appliance door and a third operative position corresponding to an opened position of said associated appliance door, and wherein said dampener provides greater dampening effect when said second hinge portion moves from said second operative position to said third operative position as compared to movement of said second hinge portion from said third operative position to said second operative position.

9. The dampened hinge system as set forth in claim 8, wherein said claw of said first hinge portion is connected to a first end of said link of said first hinge portion and said spring is connected to a second end of said link of said first hinge portion, and wherein said claw of said second hinge portion is connected to a first end of said link of said second hinge portion and said dampener is connected to a second end of said link of said second hinge portion.

10. The dampened hinge system as set forth in claim 9, wherein:

said first hinge portion comprises a first link control member connected to said guide channel, and wherein said link of said first hinge portion defines a first edge that rides on the first link control member when said guide channel of said first hinge portion is pivoted relative to said claw of said first hinge portion; and

,

said second hinge portion comprises a second link control member connected to said guide channel, and wherein said link of said second hinge portion defines a first edge that rides on the second link control member when said guide channel of said second hinge portion is pivoted relative to said claw of said second hinge portion.

11. The dampened hinge system as set forth in claim 10, wherein:

said second end of said link of said first hinge portion defines a dwell point for receiving and retaining said first link control member when said guide channel of said first hinge portion is pivoted to said third operative position relative to said claw of said first hinge portion; and

,

said second end of said link of said second hinge portion defines a dwell point for receiving and retaining said second link control member when said guide channel of said second hinge portion is pivoted to said third operative position relative to said claw of said second hinge portion.

12. A dampened hinge system for connecting an appliance door to an appliance body, said hinge system comprising:

first and second hinge portions each comprising a guide member adapted for connection to an associated appliance door, a claw pivotably connected to the guide member and adapted for engagement with an associated appliance body, and a link pivotably connected to the claw;

a spring having a first end connected to said link of said first hinge portion and a second end connected to said guide member of said first hinge portion; and

,

a dampener operably connected between said link of said second hinge portion and said guide member of said second hinge portion, wherein;

said first and second hinge portions are movable to a first operative position corresponding to a closed position of said associated appliance door, a second operative position corresponding to a broil-stop position of said associated appliance door and a third operative position corresponding to an opened position of said associated appliance door;

said claw of said first hinge portion is connected to a first end of said link of said first hinge portion and said spring is connected to a second end of said link of said first hinge portion, and wherein said claw of said second hinge portion is connected to a first end of said link of said second hinge portion and said dampener is connected to a second end of said link of said second hinge portion;

said first hinge portion comprises a first link control member connected to said guide channel, and wherein said link of said first hinge portion defines a first edge that rides on the first link control member when said guide channel of said first hinge portion is pivoted relative to said claw of said first hinge portion;

said second hinge portion comprises a second link control member connected to said guide channel, and wherein said link of said second hinge portion defines a first edge that rides on the second link control member when said guide channel of said second hinge portion is pivoted relative to said claw of said second hinge portion;

said second end of said link of said first hinge portion defines a dwell point for receiving and retaining said first link control member when said guide channel of said first hinge portion is pivoted to said third operative position relative to said claw of said first hinge portion;

said second end of said link of said second hinge portion defines a dwell point for receiving and retaining said second link control member when said guide channel of said second hinge portion is pivoted to said third operative position relative to said claw of said second hinge portion;

said claw of said first hinge portion is pivotably connected to said guide channel of said first hinge portion by a first fastener, and wherein said link of said first hinge portion defines a second edge, opposite said first edge, that abuts said first fastener when said first hinge portion is moved to said third operative position; and

,

said claw of said second hinge portion is pivotably connected to said guide channel of said second hinge portion by a second fastener, and wherein said link of said second hinge portion defines a second edge, opposite said first edge, that abuts said second fastener when said guide channel of said second hinge portion is moved to said third operative position.

13. An appliance comprising:

a body;

a door;

first and second hinge portions for pivotably connecting the door to the body, each of said first and second hinge portions comprising a guide member adapted for connection to the door, a claw pivotably connected to the guide member and adapted for engagement with the body, and a link pivotably connected to the claw;

a spring having a first end connected to said link of said first hinge portion and a second end connected to said guide member of said first hinge portion; and

,

an unbiased dampener operably connected between said link of said second hinge portion and said guide member of said second hinge portion, said claw of said second hinge portion and said guide member of said second hinge portion being unbiased relative to each other.

14. The appliance as set forth in claim 13, wherein said dampener comprises one of a gas-actuated dampener and an oil-actuated dampener, said dampener comprising a housing and a rod slidably movable into and away from said housing, said rod connected to one of said guide member and said link of said second hinge portion and said housing connected to the other of said guide member and said link of said second hinge portion.

15. The appliance as set forth in claim 14, wherein said spring comprises a coil spring.

16. The appliance as set forth in claim 13, wherein said guide member of said first hinge portion and said guide member of said second hinge portion each comprise a U-shaped channel defining a recess, said spring and link of said first hinge portion at least partially located in said recess of said guide member and said dampener and said link of said second hinge portion at least partially located in said recess of said guide member of said second hinge portion.

17. The appliance as set forth in claim 13, wherein said link of said first hinge portion and said link of said second hinge portion each comprise first and second parallel link members.

18. The appliance as set forth in claim 17, wherein said first and second parallel link members are identical to each other.

19. The appliance as set forth in claim 13, wherein said dampener comprises at least one of a push-dampener, a pull-dampener and a push/pull-dampener.

20. The appliance as set forth in claim 13 wherein said first and second hinge portions are movable to a first operative position corresponding to a closed position of said door, a second operative position corresponding to a broil-stop position of said door and a third operative position corresponding to an opened position of said door, wherein said dampener provides greater dampening effect on movement of said door from said closed position to said opened position as compared to movement of said door from said opened position to said closed position.

21. The appliance as set forth in claim 20, wherein said claw of said first hinge portion is connected to a first end of said link of said first hinge portion and said spring is connected to a second end of said link of said first hinge portion, and wherein said claw of said second hinge portion is connected to a first end of said link of said second hinge portion and said dampener is connected to a second end of said link of said second hinge portion.

22. The appliance as set forth in claim 21, wherein:

said first hinge portion comprises a first link control member connected to said guide channel, and wherein said link of said first hinge portion rides on the first link control member when said guide channel of said first hinge portion is pivoted relative to said claw of said first hinge portion; and

,

said second hinge portion comprises a second link control member connected to said guide channel, and wherein said link of said second hinge portion rides on the second link control member when said guide channel of said second hinge portion is pivoted relative to said claw of said second hinge portion.

23. The appliance as set forth in claim 22, wherein:

said second end of said link of said first hinge portion defines a dwell point for receiving and retaining said first link control member when said guide channel of said first hinge portion is pivoted to said third operative position relative to said claw of said first hinge portion; and

,

said second end of said link of said second hinge portion defines a dwell point for receiving and retaining said second link control member when said guide channel of said second hinge portion is pivoted to said third operative position relative to said claw of said second hinge portion.

25. The appliance as set forth in claim 20, wherein said door is self-supporting in said broil-stop position.

24. An appliance comprising:

a body;

a door;

first and second hinge portions for pivotably connecting the door to the body, each of said first and second hinge portions comprising a guide member adapted for connection to the door, a claw pivotably connected to the guide member and adapted for engagement with the body, and a link pivotably connected to the claw;

a spring having a first end connected to said link of said first hinge portion and a second end connected to said guide member of said first hinge portion; and

,

a dampener operably connected between said link of said second hinge portion and said guide member of said second hinge portion, wherein;

said first and second hinge portions are movable to a first operative position corresponding to a closed position of said door, a second operative position corresponding to a broil-stop position of said door and a third operative position corresponding to an opened position of said door;

said claw of said first hinge portion is connected to a first end of said link of said first hinge portion and said spring is connected to a second end of said link of said first hinge portion, and wherein said claw of said second hinge portion is connected to a first end of said link of said second hinge portion and said dampener is connected to a second end of said link of said second hinge portion;

said first hinge portion comprises a first link control member connected to said guide channel, and wherein said link of said first hinge portion rides on the first link control member when said guide channel of said first hinge portion is pivoted relative to said claw of said first hinge portion;

said second hinge portion comprises a second link control member connected to said guide channel, and wherein said link of said second hinge portion rides on the second link control member when said guide channel of said second hinge portion is pivoted relative to said claw of said second hinge portion;

said second end of said link of said first hinge portion defines a dwell point for receiving and retaining said first link control member when said guide channel of said first hinge portion is pivoted to said third operative position relative to said claw of said first hinge portion;

said second end of said link of said second hinge portion defines a dwell point for receiving and retaining said second link control member when said guide channel of said second hinge portion is pivoted to said third operative position relative to said claw of said second hinge portion;

said claw of said first hinge portion is pivotably connected to said guide channel of said first hinge portion by a first fastener, and wherein said link of said first hinge portion abuts said first fastener when said first hinge portion is moved to said third operative position; and

,

said claw of said second hinge portion is pivotably connected to said guide channel of said second hinge portion by a second fastener, and wherein said link of said second hinge portion abuts said second fastener when said guide channel of said second hinge portion is moved to said third operative position.