Chair having a slide mechanism for the seat
First Claim
1. A chair comprising a seat portion, a seat support supporting the seat portion, a rear seat support extending rearwardly upwardly relative to the seat support on a rear end side of the seat support, a slide mechanism including members disposed in association with the seat portion and the seat support, wherein the members mesh with each other to cause the seat portion to slide back and forth relative to the seat support in a manner to cause a rear end portion of the seat portion to rise gradually when the seat portion slides rearward while deforming to cause the rear end portion to curve;
- and a restraining section for releasably restraining the sliding movement of the seat portion caused by the slide mechanism.
1 Assignment
0 Petitions
Accused Products
Abstract
A chair includes a seat portion 1(1B), a seat support 2(2B) supporting the seat portion 1, a rear seat support 3(3B) extending rearwardly upwardly relative to the seat support 2(2B), and a slide mechanism X1 (moving mechanism XB) for causing the seat portion 1(1B) to slide back and forth relative to the seat support 2 (2B). The chair is provided with a locking mechanism 100C for locking the seat portion 6C at a desired position in the fore-and-aft direction selectively, and a lever 110C for operating the locking mechanism 100C, the lever 110C being located at a position allowing the lever 110C to move together with the seat portion 6C in the fore-and-aft direction.
-
Citations
23 Claims
-
1. A chair comprising a seat portion, a seat support supporting the seat portion, a rear seat support extending rearwardly upwardly relative to the seat support on a rear end side of the seat support, a slide mechanism including members disposed in association with the seat portion and the seat support, wherein the members mesh with each other to cause the seat portion to slide back and forth relative to the seat support in a manner to cause a rear end portion of the seat portion to rise gradually when the seat portion slides rearward while deforming to cause the rear end portion to curve;
- and a restraining section for releasably restraining the sliding movement of the seat portion caused by the slide mechanism.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 12. A chair comprising a seat portion having a seat body with a cushioning property, a seat support supporting at least a front end side of the seat portion, a rear seat support extending rearwardly upwardly relative to the seat support on a rear end side of the seat support, and a moving mechanism for sliding the whole of the seat portion back and forth along the seat support, wherein a rear end side of the seat portion rises gradually along the rear seat support when the seat portion slides backward, the seat body having a reverse side held by a rigid seat plate mounted to cover at least an extent from a front end side to a central portion of the reverse side and a flexibly deformable rear seat plate mounted at a rear end side of the reverse side, the rear seat plate being capable of smoothly curving to allow a rear end portion of the seat body to gradually rise along the rear seat support through the rear seat plate.
-
17. A chair comprising a seat portion mounted on a seat support so as to be capable of moving in a fore-and-aft direction relative to the seat support by means of a moving mechanism, the moving mechanism including elements which are capable of moving only in the fore-and-aft direction relative to one another,
the chair being provided with a locking mechanism for selectively locking the moving mechanism in a condition that the seat portion is located at a desired position in the fore-and-aft direction selectively, and a manipulating section for operating the locking mechanism, the manipulating section being directly manipulated by a user and located at a position allowing the manipulating section to move together with the seat portion in the fore-and-aft direction, wherein the locking and releasing of the seat portion relative to the seat support is caused by a manipulating force input to the manipulating section.
-
21. A chair comprising a seat portion mounted on a seat support so as to be capable of moving in a fore-and-aft direction,
the chair being provided with a locking mechanism for locking the seat portion at a desired position in the fore-and-aft direction selectively, and a manipulating section for operating the locking mechanism, the manipulating section being directly manipulated by a user and located at a position allowing the manipulating section to move together with the seat portion in the fore-and-aft direction, wherein locking and releasing of the seat portion relative to the seat support is caused by a manipulating force input to the manipulating section, wherein the first manipulating section for operating the locking mechanism and other manipulating sections located on a seat support side for operating other mechanisms are arranged side-by-side in the fore-and-aft direction, wherein each of the first and other manipulating sections is a flat plate-shaped lever and assumes a substantially horizontal posture when it is not manipulated.
-
22. A chair comprising a seat portion, a seat support supporting the seat portion, a rear seat support extending rearwardly upwardly relative to the seat support on a rear end side of the seat support, a slide mechanism including members disposed in association with the seat portion and the seat support, wherein the members mesh with each other to cause the seat portion to slide back and forth relative to the seat support in a manner to cause a rear end portion of the seat portion to rise gradually when the seat portion slides rearward while deforming to cause the rear end portion to curve;
- and a restraining section for releasably restraining the sliding movement of the seat portion caused by the slide mechanism;
wherein the slide mechanism comprises a rack gear and a pinion gear disposed in association with the seat portion and the seat support;
wherein the rack gear and pinion gear mesh with each other.
- and a restraining section for releasably restraining the sliding movement of the seat portion caused by the slide mechanism;
-
23. A chair comprising a seat portion mounted on a seat support so as to be capable of moving in a fore-and-aft direction relative to the seat support by means of a moving mechanism, the moving mechanism including elements which are capable of moving only in the fore-and-aft direction relative to one another, the chair being provided with a locking mechanism for selectively locking the moving mechanism in a condition that the seat portion is located at a desired position in the fore-and-aft direction selectively, and a manipulating section for operating the locking mechanism, the manipulating section being directly manipulated by a user and located at a position allowing the manipulating section to move together with the seat portion in the fore-and-aft direction, wherein the locking and releasing of the seat portion relative to the seat support is caused by a manipulating force input to the manipulating section;
- wherein the elements of the moving mechanism are a rack and a pinion, wherein the seat portion is supported on the seat support through the moving mechanism, wherein the rack is located on a seat support side and the pinion is located on a seat portion side together with the locking mechanism and the manipulating section.
Specification