4-star base for a chair
A base for a chair is described. The example base for the chair includes a central support coupled to a seat pan of the chair, a first pair of legs extending radially from the central support, and a second pair of legs extending radially from the central support. The first pair of legs extend in a direction opposite the second pair of legs. A first angle between the first pair of legs is larger than a second angle between the second pair of legs.
1. A chair comprising:
a seat including a front and an opposing back, the front having opposing front corners and the back having opposing back corners;
a height-adjustable, rotationally-fixed central support coupled to the seat, the central support being rotationally fixed relative to the seat;
a first leg and a second leg coupled to and extending from the height-adjustable, rotationally-fixed central support, each of the first leg and the second leg extending toward the opposing front corners of the seat;
a third leg and a fourth leg coupled to and extending from the height-adjustable, rotationally-fixed central support, each of the third leg and the fourth leg extending toward the opposing back corners of the seat, wherein the first leg and the second leg define a first angle, the third leg and fourth leg define a second angle, and the first angle is greater than the second angle, and wherein the legs are rotationally fixed relative to the central support; and
freely-rotating casters on ends of each of the legs.
2. The chair as defined in claim 1 , wherein the first angle is equal to or greater than 90 degrees.
3. The chair as defined in claim 1 , wherein the second angle is equal to or less than 90 degrees.
4. The chair as defined in claim 1 , wherein the first leg and the second leg are each a first length and the third leg and the fourth leg are each a second length, wherein the first length is longer than the second length.
5. The chair as defined in claim 1 , wherein the first and third leg define a third angle, the second and fourth leg define a fourth angle, and the third and fourth angle are equal.
6. The chair as defined in claim 5 , wherein the first angle is larger than the third and fourth angles.
7. The chair as defined in claim 5 , wherein the second angle is smaller than the third and fourth angles.
8. A seating device comprising:
a seat having a front;
a fixed non-rotating support coupled to the seat, the support being fixed relative to the front of the seat;
legs extending radially from the non-rotating support, the legs being rotationally fixed relative to the fixed non-rotating support, a pair of the legs defining an area under the front of the seat in which a user may position their feet, wherein an angle between the pair of the legs is at least 90 degrees; and
a freely rotating caster on an end of each of the legs, respectively.
9. The seating device as defined in claim 8 , wherein the pair of the legs is a first pair of legs, where the legs further include a second pair of legs extending from the fixed non-rotating support toward a back of the seating device, wherein a second angle between the second pair of legs is acute.
10. The seating device as defined in claim 9 , wherein the first pair of legs has a first length and the second pair of legs has a second length, wherein the first length is longer than the second length.
11. A seating device comprising:
a fixed non-rotating support;
legs extending radially from the non-rotating support, pair of the legs defining an area under a front of the seating device in which a user may position their feet, wherein an angle between the pair of the legs is at least 90 degrees; and
wherein the pair of the legs is a first group of legs, wherein the legs further include a second group of legs extending from the fixed non-rotating support toward a back of the seating device, wherein the second group of legs comprises at least three legs.
12. The seating device as defined in claim 11 , wherein an angle formed between a leg and an adjacent leg of the second group of legs is acute.
13. The seating device as defined in claim 11 , wherein the first group of legs has a first length and the second group of legs has a second length, wherein the first length is longer than the second length.
14. The seating device as defined in claim 11 , wherein the legs are rotationally fixed relative to the non-rotating support.
15. The seating device as defined in claim 11 , further comprising casters coupled to ends of each of the legs.
16. The seating device as defined in claim 11 , further comprising a seat, wherein the legs are rotationally fixed relative to the seat.
17. The chair as defined in claim 1 , wherein the first leg and the second leg define an area under the front of the seat in which a user may position their feet.
18. The chair as defined in claim 1 , wherein the first leg and the second leg extend past an edge near the front corners of the seat.
19. The chair as defined in claim 1 , wherein the third leg and the fourth leg extend past an edge near the back corners of the seat.
20. The chair as defined in claim 1 , wherein the first leg and the second leg are each a first length and the third leg and the fourth leg are each a second length, wherein the first length is shorter than the second length.
21. The chair as defined in claim 1 , wherein the height-adjustable, rotationally-fixed central support includes a height-adjustable, non-rotational piston.
22. The chair as defined in claim 21 , further comprising a connection piece having an aperture that receives the height-adjustable, non-rotational piston and is formed with the legs.