Bath transfer chair
First Claim
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1. A tilting mechanism for a chair having a seat frame, a seat and a chair back, wherein:
- a) the seat frame comprises a pair of forward legs, a pair of rearward legs, a first track defining a first track path, and a second track defining a second track path, wherein the first track remains fixed in position with respect to the seat frame as the seat tracks along the first track, wherein the seat is trackable along the first track path in a forward-rearward direction between an upright most sitting position and a rearward most reclined position whereby an inclination of the seat from a horizontal axis increases as the seat moves from the upright most sitting position to the rearward most reclined position; and
,b) the chair back is movable along the second track path in the forward-rearward direction between a first position when the seat is in the upright most sitting position and a second inclined position when the seat is in the rearward most reclined position whereby an inclination of the chair back from a vertical axis increases as the seat moves from the upright most sitting position to the rearward most reclined position,wherein the first track comprises a generally curved track section having a front portion located at a position defining the rearward most reclined position of the seat and a rearward portion defining the upright most sitting position of the seat, wherein the front portion is at a raised elevation compared to the rearward portion,wherein the second track path has a different configuration from the first track path, andwherein a lower end of the chair back is positioned between the pair of forward legs and the pair of rearward legs as the seat tracks from the upright most sitting position to the rearward most reclined position.
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Abstract
A tilting mechanism for a chair that has a seat frame, a seat and a chair back. The tilting mechanism has a track path along which the seat tracks between an upright sitting position and a reclined position. The chair back tracks concurrently between a first position when the seat is in the upright sitting position and a second inclined position when the seat is in the reclined position. The inclination of the chair back increases at a greater rate than the inclination of the seat as the seat moves between the upright sitting position and the reclined position.
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Citations
25 Claims
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1. A tilting mechanism for a chair having a seat frame, a seat and a chair back, wherein:
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a) the seat frame comprises a pair of forward legs, a pair of rearward legs, a first track defining a first track path, and a second track defining a second track path, wherein the first track remains fixed in position with respect to the seat frame as the seat tracks along the first track, wherein the seat is trackable along the first track path in a forward-rearward direction between an upright most sitting position and a rearward most reclined position whereby an inclination of the seat from a horizontal axis increases as the seat moves from the upright most sitting position to the rearward most reclined position; and
,b) the chair back is movable along the second track path in the forward-rearward direction between a first position when the seat is in the upright most sitting position and a second inclined position when the seat is in the rearward most reclined position whereby an inclination of the chair back from a vertical axis increases as the seat moves from the upright most sitting position to the rearward most reclined position, wherein the first track comprises a generally curved track section having a front portion located at a position defining the rearward most reclined position of the seat and a rearward portion defining the upright most sitting position of the seat, wherein the front portion is at a raised elevation compared to the rearward portion, wherein the second track path has a different configuration from the first track path, and wherein a lower end of the chair back is positioned between the pair of forward legs and the pair of rearward legs as the seat tracks from the upright most sitting position to the rearward most reclined position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 23, 24)
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14. A tiltable chair comprising:
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a) a seat frame comprising forward legs, rearward legs, a first track defining a first track path that extends in a forward-rearward direction, and a second track defining a second track path that extends in the forward-rearward direction; b) a seat movably mounted to the first track, the seat trackable along the first track path in the forward-rearward direction between an upright most sitting position and a rearward most reclined position whereby an inclination of the seat from a horizontal axis increases as the seat moves from the upright most sitting position to the rearward most reclined position; and c) a chair back moveably mounted to the second track, the chair back concurrently trackable along the second track path in the forward-rearward direction as the seat tracks along the first track path, the chair back trackable along the second track path between a first position when the seat is in the upright most sitting position and a second inclined position when the seat is in the rearward most reclined position whereby an inclination of the chair back from a vertical axis increases as the seat moves from the upright most sitting position to the rearward most reclined position, wherein the second track path has a different configuration from the first track path, and wherein a rearward end of the seat is positioned between the forward legs and the rearward legs as the seat tracks from the upright most sitting position to the rearward most reclined position. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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25. A tilting mechanism for a chair having a seat frame, a seat and a chair back, wherein:
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a) the seat frame extends between a front end and a rear end in a forward-rearward direction, the seat frame extends between a first lateral side and a second lateral side in a lateral direction, and the seat frame comprises a pair of forward legs, a pair of rearward legs, a first track defining a first track path, and a second track defining a second track path, wherein the first track remains fixed in position with respect to the seat frame as the seat tracks along the first track, wherein the seat is trackable along the first track path in the forward-rearward direction between an upright most sitting position and a rearward most reclined position whereby an inclination of the seat from a horizontal axis increases as the seat moves from the upright most sitting position to the rearward most reclined position; and
,b) the chair back is movable along the second track path in the forward-rearward direction between a first position when the seat is in the upright most sitting position and a second inclined position when the seat is in the rearward most reclined position whereby an inclination of the chair back from a vertical axis increases as the seat moves from the upright most sitting position to the rearward most reclined position, wherein the first track comprises a generally curved track section having a front portion located at a position defining the rearward most reclined position of the seat and a rearward portion defining the upright most sitting position of the seat, wherein the front portion is at a raised elevation compared to the rearward portion, wherein the first track is positioned proximate the first lateral side and the second track is also positioned proximate the first lateral side, and wherein a lower end of the chair back is positioned between the pair of forward legs and the pair of rearward legs as the seat tracks from the upright most sitting position to the rearward most reclined position.
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Specification