Convertible chair
First Claim
Patent Images
1. A convertible chair comprisinga lower support structure;
- a support column mounted on said support structure;
a seat mounted on said support column;
an arm swingably journalled with respect to said support column;
a back/knee rest mounted on said arm;
a first engagement means mounted on said arm;
a second engagement means fixedly secured to said seat;
said first and second engagement means defining a first preset engagement position in which the back/knee rest is in a back rest position and a second preset engagement position in which the back/knee rest is in a knee rest position;
said first and second engagement means being in controlling engagement with each other during adjustment movements between said first and second engagement positions, whereby conversion of the chair is facilitated.
1 Assignment
0 Petitions
Accused Products
Abstract
The chair can be converted from a state where a person traditionally sits on the approximately horizontal seat (13) of the chair to another state where the person sits on the now inclined seat of the chair, one and the same means being used as back rest in one state and as knee rest in another state. The combined back and knee rest is arranged on one end of a two-armed lever (16) on whose other end there is provided a shaft (18) which is movable in a U-shaped guide (19) in firm connection with the seat. This ensures simple and rapid conversion of the chair between its two states.
37 Citations
20 Claims
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1. A convertible chair comprising
a lower support structure; -
a support column mounted on said support structure; a seat mounted on said support column; an arm swingably journalled with respect to said support column; a back/knee rest mounted on said arm; a first engagement means mounted on said arm; a second engagement means fixedly secured to said seat; said first and second engagement means defining a first preset engagement position in which the back/knee rest is in a back rest position and a second preset engagement position in which the back/knee rest is in a knee rest position; said first and second engagement means being in controlling engagement with each other during adjustment movements between said first and second engagement positions, whereby conversion of the chair is facilitated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A convertible chair comprising
a lower support structure; -
a support column mounted on said support structure; a seat swiveling mounted on said support column; an arm swingably mounted with respect to said support column; a back/knee rest mounted on said arm; a first engagement means mounted on said arm; a second engagement means fixedly secured to said seat; said first and second engagement means defining a first preset engagement position in which the back/knee rest is in a back rest position and a second preset engagement position in which the back/knee rest is in a knee rest position; said first and second engagement means being in engagement with each other during adjustment movements between said first and second engagement positions. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A convertible chair comprising
a lower support structure; -
a support column mounted on said support structure; a bracket swiveling mounted on said support column; a seat pivotally mounted on said bracket, said seat having a bottom; an arm swingably journalled on said bracket; a back/knee rest mounted on said arm; a first engagement means mounted on said arm; a second engagement means mounted at the bottom of said seat; said first and second engagement means defining a first preset engagement position in which the back/knee rest is in a back rest position and a second preset engagement position in which the back/knee rest is in a knee rest position; said first and second engagement means being in controlling engagement with each other during adjustment movements between said first and second engagement positions, whereby conversion of the chair is facilitated.
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Specification