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US 2022/0087424 A1Published application
Chair for active engagement of user
AssigneeMillerKnoll, Inc.
InventorsMark Goetz, Brock Walker, John Aldrich, Andy Squires, Chris Holwerda, Adwait Bhagwat
Life of this patent
Estimating the term…
Abstract
A chair includes a lower chair and an upper chair. The lower chair includes a tilt-swivel mechanism defining a vertical swivel axis, a yoke, and a column extending between the tilt-swivel mechanism and the yoke. The upper chair is pivotably mounted to the yoke about a horizontal upper chair pivot axis. The upper chair includes a seat adapted to cradle the ischial tuberosities of a user.
Claims60
An upper chair adapted to be supported by a lower chair, the upper chair comprising:
- a seat including a pelvic nest adapted to cradle the ischial tuberosities of a user;
- a thigh pad engaging the user's posterior thighs forward of the pelvic nest;
- a thigh relief interconnecting the pelvic nest and the thigh pad for permitting compliant deflection of the thigh pad with respect to the pelvic nest;
- and
- a lower back support pivotable with respect to the pelvic nest to engage a lower back of the user;
- wherein a horizontal upper chair pivot axis is the sole pivotal interconnection between the upper chair and lower chair.
3 more elements
A chair comprising:
- a lower chair including a tilt-swivel mechanism defining a vertical swivel axis, a yoke, and a column extending between the tilt-swivel mechanism and the yoke;
- and
- an upper chair pivotably mounted to the yoke about a horizontal upper chair pivot axis, the upper chair including a seat adapted to cradle the ischial tuberosities of a user;
- wherein the horizontal upper chair pivot axis is above the seat.
1 more element
A chair comprising:
- a lower chair including a tilt-swivel mechanism defining a vertical swivel axis, a yoke, and a column extending between the tilt-swivel mechanism and the yoke;
- an upper chair pivotably mounted to the yoke about a horizontal upper chair pivot axis, the upper chair including a seat adapted to cradle the ischial tuberosities of a user;
- and
- a dampener between the column and tilt-swivel mechanism for controlling a rate of tilting motion of the column on the tilt-swivel mechanism and a dampener between the yoke and upper chair for controlling a rate of tilting motion of the upper chair with respect to the yoke about the upper pivot axis.
1 more element
(canceled)
A chair comprising:
- a lower chair including a tilt-swivel mechanism defining a vertical swivel axis, a yoke, and a column extending between the tilt-swivel mechanism and the yoke;
- and
- an upper chair pivotably mounted to the yoke about a horizontal upper chair pivot axis, the upper chair including a seat adapted to cradle the ischial tuberosities of a user;
- the seat comprises a pelvic nest for cradling the ischial tuberosities of the user, a thigh pad engaging the user's posterior thighs forward of the pelvic nest, and a thigh relief interconnecting the pelvic nest and the thigh pad for permitting compliant deflection of the thigh pad with respect to the pelvic nest;
- and
- the upper chair further comprises a back extending up with respect to the seat and including an upper portion and a lower portion, the upper and lower portions being pivotable with respect to each other.
3 more elements
60-71. (canceled)
Dependencies are inferred from the claim text.