Three-way handle-operated wall-avoiding recliner chair

Claim 2

A three-way wall-avoiding, recliner chair comprising: a base, a seat and armrest unit including armrests fixed to the seat, a backrest mounted to and movable relative to the seat, a footrest including a footrest linkage mounted to the seat for movement between a retracted position adjacent the seat and an extended position projected forwardly from the seat, a handle-operated, actuating mechanism mounted to the seat for actuating the footrest linkage between extended and retracted positions, a linkage system mounting the seat and armrest unit to the base and mounting the backrest to the seat and armrest unit for movement between a normal generally upright position and a plurality of reclining positions, the linkage system comprising, front and rear seat mounting links (42, 44) pivoted to the base and pivotally connected relative to the seat, a first bell crank (107) pivotally connected to the rear seat mounting link, a drive link (104) having one end portion pivotally connected to the backrest and an opposite end position pivotally connected to said first bell crank link (107), a transmission link (63) connected between the handle mechanism and the first bell crank for transmitting a force to the rear seat mounting link (44) to move the seat forwardly relative to the base into a TV position when the footrest is initially actuated to extended position by means of the handle mechanism, a restraining link (124) pivotally connected to and between the seat and the transmission link for preventing movement of the drive link and the backrest relative to the seat during movement of the seat into TV position, a second bell crank (110) having one end portion pivotally connected to the drive link at the same pivotal connection of the first bell crank to the drive link, said second bell crank having an intermediate portion pivotally mounted to the seat such that the pivotal connection of the first bell crank to the transmission link is aligned with the pivotal connection of the second bell crank to the seat when the seat is in the TV position permitting the backrest to be moved relative to the seat and the seat to be reclined further relative to the base upon application of pressure on the backrest by the chair occupant causing a drive force to be transmitted downwardly from the backrest through the drive link (104) to the bell crank link, and a pitch control link (120) pivotally connected to an end portion of the second bell crank (110) opposite the first end portion thereof and pivotally connected relative to the seat for transmitting actuating forces to the seat and for controlling the pitch of the seat when moving into reclining positions beyond TV position.

Claim 3

The chair defined in claim 1 wherein the linkage system further includes a first intermediate seat mounting link (50) having one end portion pivotally connected to the seat and an opposite end portion pivotally connected to the front seat mounting link (42) and having an intermediate portion pivotally connected to said opposite end portion of the pitch control link, and a second intermediate seat mounting link (52) pivotally interconnected to and between the seat and the rear seat mounting link (44).

Claim 4

The chair defined in claim 1 wherein said handle-operated actuating mechanism includes a handle mounted to the seat for rotational movement, a crank (57) fixed to the handle to be rotatable therewith, a main drive link (60) pivotally interconnected to and between the last-defined crank (57) and said transmission link (63) for driving the latter.

Claim 5

The chair defined in claim 3 wherein said transmission link (63) is also pivotally connected to the footrest linkage to drive the same between the extended and retracted positions upon rotation of the handle.

Claim 6

The chair defined in claim 4 wherein said footrest linkage includes a mounting and drive link (67), and said transmission link is connected to said footrest mounting and drive link (67).

Claim 7

The chair defined in claim 5 wherein said footrest linkage further includes a pair of scissor links (66, 76), one (76) being pivotally connected to the seat and the other (66), pivotally connected to said footrest mounting and drive link (67) and wherein there is further included a spring mechanism including a tension spring (72) having one end fixed relative to the scissor link that is connected to the footrest mounting link for biasing the footrest into retracted position.

Claim 8

The chair defined in claim 6 wherein the other end of the tension spring is fixed to the main drive link (60) such that in the retracted position of the footrest, the point of fixation of the spring to the associated scissor link is positioned rearwardly of the point of fixation of the spring to the main drive link 60, and in the extended position of the footrest the point of fixation of the spring to the associated scissor link is positioned forwardly of the point of fixation of the spring to the main drive link such that the spring also biases the footrest linkage to remain in the extended position.

Claim 9

The chair defined in claim 5 wherein the linkage system further includes a first intermediate seat mounting link (50) having one end portion pivotally connected to the seat and an opposite end portion pivotally connected to the front seat mounting link (42) and having an intermediate portion pivotally connected to said opposite end portion of the pitch control link, and a second intermediate seat mounting link (52) pivotally interconnected to and between the seat and the rear seat mounting link (44).

Claim 10

The chair defined in claim 3 wherein there is included a stop (140) fixed to the main drive link (60) and engageable with the crank (57) when the chair is in the normal generally upright position.

Claim 11

The chair defined in claim 1 wherein there is included a stop (130) fixed relative to the seat and engageable with portions of the second bell crank (110) when the chair is in the opposite extreme positions thereof.

Claim 12

For use in a three-way wall-avoiding, recliner chair including a base, a seat and armrest unit including armrests fixed to the seat, a backrest mounted to and movable relative to the seat, a footrest including a footrest linkage mounted to the seat for movement between a retracted position adjacent the seat and an extended position projected forwardly from the seat, and a handle-operated, actuating mechanism mounted to the seat for actuating the footrest linkage between extended and retracted positions; a linkage system for mounting the seat and armrest unit to the base and for mounting the backrest to the seat and armrest unit for movement between a normal generally upright position and a plurality of reclining positions, the linkage system comprising, front and rear seat mounting links (42, 44) adapted to be pivoted to the base and pivotally connected relative to the seat, a first bell crank (107) pivotally connected to the rear seat mounting link, a drive link (104) having one end portion adapted to be pivotally connected to the backrest and an opposite end portion pivotally connected to said first bell crank link (107), a transmission link (63) adapted to be connected between the handle mechanism and the first bell crank for transmitting a force to the rear seat mounting link (44) to move the seat forwardly relative to the base into a TV position when the footrest is initially actuated to extended position by means of the handle mechanism, a restraining link (124) pivotally connected to and between the seat and the transmission link for preventing movement of the drive link and the backrest relative to the seat during movement of the seat into TV position, a second bell crank (110) having one end portion pivotally connected to the drive link at the same pivotal connection of the first bell crank to the drive link, said second bell crank having an intermediate portion adapted to be pivotally mounted to the seat such that the pivotal connection of the first bell crank to the transmission link is aligned with the pivotal connection of the second bell crank to the seat when the seat is in the TV position permitting the backrest to be moved relative to the seat and the seat to be reclined further relative to the base upon application of pressure on the backrest by the chair occupant causing a drive force to be transmitted downwardly from the backrest through the drive link (104) to the bell crank link, and a pitch control link (120) pivotally connected to an end portion of the second bell crank (110) opposite the first end portion thereof and adapted to be pivotally connected relative to the seat for transmitting actuating forces to the seat and for controlling the pitch of the seat when moving into reclining positions beyond TV position.

Claim 13

For use in a three-way wall-avoiding, recliner chair including a base, a seat and armrest unit including armrests fixed to the seat, a backrest mounted to and movable relative to the seat, a footrest including a footrest linkage mounted to the seat for movement between a retracted position adjacent the seat and an extended position projected forwardly from the seat, and a handle-operated, actuating mechanism mounted to the seat for actuating the footrest linkage between extended and retracted positions; a linkage system for mounting the seat and armrest unit to the base and for mounting the backrest to the seat and armrest unit for movement between a normal generally upright position and a plurality of reclining positions, the linkage system comprising, front and rear seat mounting links (42, 44) adapted to be pivoted to the base and pivotally connected relative to the seat, a first bell crank (107) pivotally connected to the rear seat mounting link, a drive link (104) having one end portion adapted to be pivotally connected to the backrest and an opposite end portion pivotally connected to said first bell crank link (107), a transmission link (63) adapted to be connected between the handle mechanism and the first bell crank for transmitting a force to the rear seat mounting link (44) to move the seat forwardly relative to the base into a TV position when the footrest is initially actuated to extended position by means of the handle mechanism, a restraining link (124) pivotally connected to and between the seat and the transmission link for preventing movement of the drive link and the backrest relative to the seat during movement of the seat into TV position, a second bell crank (110) having one end portion pivotally connected to the drive link at the same pivotal connection of the first bell crank to the drive link, said second bell crank having an intermediate portion adapted to be pivotally mounted to the seat such that the pivotal connection of the first bell crank to the transmission link is aligned with the pivotal connection of the second bell crank to the seat when the seat is in the TV position permitting the backrest to be moved relative to the seat and the seat to be reclined further relative to the base upon application of pressure on the backrest by the chair occupant causing a drive force to be transmitted downwardly from the backrest through the drive link (104) to the bell crank link, and a pitch control link (120) pivotally connected to an end portion of the second bell crank (110) opposite the first end portion thereof and adapted to be pivotally connected relative to the seat for transmitting actuating forces to the seat and for controlling the pitch of the seat when moving into reclining positions beyond TV position.

Claim 14

The linkage system defined in claim 11 further including a first intermediate seat mounting link (50) having one end portion adapted to be pivotally connected to the seat and an opposite end portion pivotally connected to the front seat mounting link (42) and having an intermediate portion pivotally connected to said opposite end portion of the pitch control link, and a second intermediate seat mounting link (52) adapted to be pivotally interconnected to and between the seat and the rear seat mounting link (44).

Claim 15

The linkage system defined in claim 11 further including a crank (57) adapted to be fixed to a handle included in the handle-operated actuating mechanism to be rotatable therewith, a main drive link (60) pivotally interconnected to and between the last-defined crank (57) and said transmission link (63) for driving the latter.

Claim 16

The linkage system defined in claim 13 wherein said transmission link (63) is also adapted to be pivotally connected to the footrest linkage to drive the same between the extended and retracted positions upon rotation of the handle.

Claim 17

The linkage system defined in claim 14 wherein said footrest linkage includes a mounting and drive link (67), and said transmission link is connected to said footrest mounting and drive link (67).

Claim 18

The linkage system defined in claim 15 wherein said footrest linkage further includes a pair of scissor links (66, 76), one (76) being adapted to be pivotally connected to the seat and the other (66), pivotally connected to said footrest mounting and drive link (67) and wherein there is further included a spring mechanism including a tension spring (72) having one end fixed relative to the scissor link that is connected to the footrest mounting link for biasing the footrest into retracted position.

Claim 19

The linkage system defined in claim 16 wherein the other end of the tension spring is fixed to the main drive link (60) such that in the retracted position of the footrest, the point of fixation of the spring to the associated scissor link is positioned rearwardly of the point of fixation of the spring to the main drive link 60, and in the extended position of the footrest the point of fixation of the spring to the associated scissor link is positioned forwardly of the point of fixation of the spring to the main drive link such that the spring also biases the footrest linkage to remain in the extended position.

Claim 20

The linkage system defined in claim 15 further including a first intermediate seat mounting link (50) having one end portion adapted to be pivotally connected to the seat and an opposite end portion pivotally connected to the front seat mounting link (42) and having an intermediate portion pivotally connected to said opposite end portion of the pitch control link, and a second intermediate seat mounting link (52) pivotally interconnected to and between the seat and the rear seat mounting link (44).

Claim 21

The linkage system defined in claim 13 wherein there is included a stop (140) fixed to the main drive link (60) and engageable with the crank (57) when the chair is in the normal generally upright position.

Claim 22

The linkage system defined in claim 11 wherein there is included a stop (140) fixed to the main drive link (60) and engageable with the crank (57) when the chair is in the normal generally upright position.