초록 ▼

An upright active-sitting seat provides a connection of a seating leg to a base through an articulating joint that allows the user to move a seat front to back and side to side, allowing a more active sitting that encourages blood circulation. The chair includes a seat supported by a post that is co

An upright active-sitting seat provides a connection of a seating leg to a base through an articulating joint that allows the user to move a seat front to back and side to side, allowing a more active sitting that encourages blood circulation. The chair includes a seat supported by a post that is connected to a mount via a ball joint rod by a transverse rod that is routed through the ball joint rod end. By way of a coil spring that engages with the mount and the post, the post is spring biased to a home position relative to the mount. When using the chair, a person may move the seat from the home position to a comfortable seating position. When the person stands from the chair after using it, the chair returns to its spring biased home position.

대표청구항 ▼

1. An upright active-sitting chair that permits a user to move between a leaning or sitting posture and provides improved support of the user by triangulation, the chair comprising: a saddle seat on which the user may sit or lean;a base having a footrest on a forward section of the base, the footres

1. An upright active-sitting chair that permits a user to move between a leaning or sitting posture and provides improved support of the user by triangulation, the chair comprising: a saddle seat on which the user may sit or lean;a base having a footrest on a forward section of the base, the footrest being directed at an angle upwards and away from the saddle seat;an elongate seat post having a first end and a second end, the first end connecting to and supporting the saddle seat;an articulating joint connecting between the second end of the seat post and the base, the joint permitting articulation of the seat post with respect to the base such that the seat post is rotatable about the base in a forward direction towards the footrest, thereby permitting the user to move between a leaning or sitting posture, the joint including spring biasing that biases the elongate seat post away from the footrest,whereby a triangle, for improved support of the user by triangulation, is formed by three points corresponding to the seat saddle, the footrest, and the articulating joint. 2. The chair of claim 1, the base having right and left sides wherein the seat post has only limited articulation with respect to the base towards the right or left sides of the base, the limited articulation towards the right or left sides being less than the articulation in the forward direction. 3. The chair of claim 2, wherein the limited articulation is limited to about 4 degrees side to side. 4. The chair of claim 1, further including a rear leg, and wherein the base has a rearward section opposite the forward section, the rear leg extending laterally along the rearward section to provide lateral support for the chair. 5. The chair of claim 4, wherein a longitudinal distance from the footrest to the rear leg is greater than a longitudinal distance from the footrest to the seat, whereby the rear leg is positioned behind the seat to provide greater longitudinal stability. 6. The chair of claim 4, wherein the base includes a horizontal section between the forward and rearward sections, the footrest being angled upwards and away from the horizontal section, the horizontal section providing a standing work area for the chair. 7. The chair of claim 1, further including wheels under the footrest, the wheels being laterally spaced in order to provide lateral support for the chair. 8. The chair of claim 1, wherein the saddle of the seat is formed by a cushioned ergonomically configured seat pan. 9. An upright active-sitting chair that permits a user to move between a leaning or sitting posture and provides improved support of the user by triangulation, the chair comprising: a saddle seat on which the user may sit or lean;a base having a footrest on a forward section of the base and having right and left sides;an elongate seat post having a first end and a second end, the first end connecting to and supporting the saddle seat;an articulating joint connecting between the second end of the seat post and the base, the joint permitting articulation between the seat post and the base such that the seat post is rotatable about the base in a forward direction towards the footrest, thereby permitting the user to move between a leaning or sitting posture, the joint including spring biasing that biases the elongate seat post away from the footrest, the seat post having only limited articulation with respect to the base towards the right or left sides of the base, the limited articulation towards the right or left sides being less than the articulation in the forward direction,whereby a triangle, for improved support of the user by triangulation, is formed by three points corresponding to the seat saddle, the footrest, and the articulating joint. 10. The chair of claim 9, wherein the limited articulation is limited to about 4 degrees side to side. 11. The chair of claim 9, further including a rear leg, and wherein the base has a rearward section opposite the forward section, the rear leg extending laterally along the rearward section to provide lateral support for the chair. 12. The chair of claim 11, wherein a longitudinal distance from the footrest to the rear leg is greater than a longitudinal distance from the footrest to the seat, whereby the rear leg is positioned behind the seat to provide greater longitudinal stability. 13. The chair of claim 11, wherein the base includes a horizontal section between the forward and rearward sections, the footrest being directed at an angle upwards and rearwards towards the saddle seat and angled upwards and rearwards relative to the horizontal section, the horizontal section providing a standing work area for the chair. 14. The chair of claim 9, further including wheels under the footrest, the wheels being laterally spaced in order to provide lateral support for the chair. 15. The chair of claim 9, wherein the saddle of the seat is formed by a cushioned ergonomically configured seat pan. 16. An upright active-sitting chair that permits a user to move between a leaning or sitting posture and provides improved support of a user by triangulation, the chair comprising: a saddle seat on which the user may sit or lean;a base having a footrest on a forward section of the base and having right and left sides;an elongate seat post having a first end and a second end, the first end connecting to and supporting the saddle seat, the second end being connected to an articulating joint to permit articulation of the post relative to the base, the seat post being rotatable about the base in a forward direction towards the footrest, thereby permitting the user to move between a leaning or sitting posture, and in a side direction towards the right or left sides of the base,the joint including spring biasing that biases the elongate seat post away from the footrest;a mount for connecting the seat post to the base, the mount having an elongate slot, the slot having a width that extends along a direction between the right and left sides of the base and a length extending in a direction perpendicular thereto, the length of the elongate slot being greater than its width,the second end of the post received in the elongate slot such that the rotation of the post in the side direction along the width of the slot is less than the rotation in the forward direction along the length of the slot,whereby a triangle, for improved support of the user by triangulation, is formed by three points corresponding to the seat saddle, the footrest, and the articulating joint. 17. The upright active sitting-chair of claim 16, wherein the elongate slot is oval in shape.