Article of furniture having a latch mechanism

Patent metadata

Field	Value
Publication number	US-9609945-B2
Application number	US-201615096387-A
Country	US
Kind code	B2
Filing date	Apr 12, 2016
Priority date	Apr 22, 2015
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

An article of furniture can include a latch mechanism. The latch mechanism can include an actuation mechanism having a housing that is moveable relative to a guide member from a first position to a second position, at least one detent mechanism comprising a first detent mechanism having a first detent member that is moveable from a first position to a second position, and an articulation mechanism positioned between the actuation mechanism and the first detent mechanism. The articulation mechanism can connect the first detent mechanism to the housing such that motion of the housing from the first position of the housing to the second position of the housing causes the first detent member to move from the first position of the first detent member to the second position of the first detent member.

First claim

What is claimed is:

1. A latch mechanism for an article of furniture comprising:
an actuation mechanism having a housing attached to a guide member, the housing being moveable relative to the guide member from a first position to a second position;
at least one detent mechanism comprising a first detent mechanism having a first detent member that is moveable from a first position to a second position;
an articulation mechanism positioned between the actuation mechanism and the first detent mechanism, the articulation mechanism connecting the first detent mechanism to the housing such that motion of the housing from the first position of the housing to the second position of the housing causes the first detent member to move from the first position of the first detent member to the second position of the first detent member;
wherein the at least one detent mechanism also comprises a second detent mechanism having a second detent member that is moveable from a first position to a second position, the second detent member being connected to the housing via the articulation mechanism such that motion of the housing from the first position of the housing to the second position of the housing causes the second detent member to move from the first position of the second detent member to the second position of the second detent member at the same time the first detent member moves from the first position of the first detent member to the second position of the first detent member;
a first elongated member extending from the articulation mechanism to the first detent member to connect the first elongated member to the articulation mechanism;
a second elongated member extending from the articulation mechanism to the second detent member to connect the second elongated member to the articulation mechanism;
a third elongated member extending from the housing of the actuation mechanism to the articulation mechanism to connect the articulation mechanism to the housing;
wherein the articulation mechanism comprises:
a first rotatable member and a second rotatable member positioned in a housing of the articulation mechanism, the first and second rotatable members being attached to the third elongated member such that movement of the housing of the actuation mechanism from the first position to the second position of the housing of the actuation mechanism causes the third elongated member to move such that the first and second rotatable members rotate; and

a connector having a shaft, the shaft of the connector passing through the first rotatable member, the second rotatable member, and an end portion of the third elongated member to connect the third elongated member to the first and second rotatable members.

2. The latch mechanism of claim 1 , wherein the guide member is configured to be affixed to a structure of an article of furniture, the guide member connectable to the housing of the actuation mechanism such that the housing is moveable relative to the guide member from the first position of the housing of the actuation mechanism to the second position of the housing of the actuation mechanism via a linear path of motion that is at least partially defined by the guide member.

3. The latch mechanism of claim 2 , wherein the guide member has grooves that slideably receive rails of the housing of the actuation mechanism.

4. The latch mechanism of claim 2 , wherein the structure of the article of furniture to which the guide member is affixable is a tabletop and the actuation mechanism comprises a biasing mechanism attached between the housing of the actuation mechanism and the guide member to bias the housing of the actuation mechanism to the first position of the housing of the actuation mechanism.

5. The latch mechanism of claim 4 , wherein the biasing mechanism is comprised of a spring.

6. The latch mechanism of claim 4 , wherein the first detent mechanism comprises a first spring member engaging the first detent member to bias the first detent member to the first position of the first detent member; and
wherein the second detent mechanism comprises a second spring member engaging the second detent member to bias the second detent member to the second position of the second detent member.

7. The latch mechanism of claim 6 , wherein the first detent member has a protuberance adjacent an intermediate portion of the first detent member that contacts a first end of the first spring member; and
wherein the second detent member has a protuberance adjacent an intermediate portion of the second detent member that contacts a first end of the second spring member.

8. The latch mechanism of claim 6 , wherein the housing of the articulation mechanism has an opening in which the first and second rotatable members are positioned and has a first channel, a second channel, and a third channel in communication with that opening, a portion of the first elongated member passing through the first channel such that the first elongated member is connectable to the first rotatable member, a portion of the second elongated member passing through the second channel such that the second elongated member is connectable to the second rotatable member, and a portion of the third elongated member passing through the third channel.

9. The latch mechanism of claim 6 , wherein the guide member is positioned within the housing of the actuation mechanism.

10. The latch mechanism of claim 2 , wherein the first detent mechanism comprises a first spring member engaging the first detent member to bias the first detent member to the first position of the first detent member; and
wherein the second detent mechanism comprises a second spring member engaging the second detent member to bias the second detent member to the second position of the second detent member;
wherein the first detent member has a protuberance adjacent an intermediate portion of the first detent member that contacts a first end of the first spring member; and
wherein the second detent member has a protuberance adjacent an intermediate portion of the second detent member that contacts a first end of the second spring member.

11. The latch mechanism of claim 1 wherein a path of travel of the housing along which the housing moves when the housing moves between the first and second positions of the housing extends in a direction that is transverse or perpendicular to a direction at which a path of travel of the first detent member extends, the path of travel of the first detent member being the path of travel along which the first detent member moves when the first detent member moves between the first and second positions of the first detent member.

12. An article of furniture having a latch mechanism of claim 1 .

13. A method of using the article of furniture of claim 12 , the method comprising:
providing a force to move the housing of the actuation mechanism from the first position of the housing of the actuation mechanism to the second position of the housing of the actuation mechanism;
removing the force so that the housing returns from the second position back to the first position of the housing of the actuation mechanism.

14. The method of claim 13 , comprising:
biasing the housing to cause the housing to return from the second position back to the first position.

15. The method of claim 14 , wherein the biasing is provided by one or more springs.

16. The method of claim 15 , wherein the article of furniture is a moveable table, the method also comprising:
tilting a tabletop of the table while the force is provided to move the housing of the actuation mechanis

Assignees

• Knoll Inc

Inventors

• Krusin Marc
• Ruzicka Pavel
• Harper Michael

Classifications

• A47B2200/0036

  Table tops pivotable around longitudinal axis · CPC title

• A47C7/00

  Parts, details, or accessories of chairs or stools · CPC title

• A47B3/08 Primary

  with legs pivoted to top or underframe · CPC title

• A47C4/00

  Foldable, collapsible or dismountable chairs (of tubular metal type A47C5/10) · CPC title

• A47B7/02

  Stackable tables; Nesting tables · CPC title