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US 11,596,232 B2Granted
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.
Claims58
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;
- 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
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
Dependencies are inferred from the claim text.