Other

Aaron Dejule

Scott Padiak

Paul C Evans

Aaron M DeJule

Paul Charle Evans

A chair, comprising, a backrest, a seat coupled with the backrest, a column coupled with the seat, a linkage statically attached to the backrest and rotatably attached below the seat, a leaf spring statically attached at one end and in direct contact with the linkage to provide a resistance to tilting of the backrest relative to the column. A first structure fixed to the column, where a portion of the first structure has an arc shape that includes one or more teeth, and a second structure in contact with the first structure, wherein a portion of the second structure includes one or more teeth. The chair is configured such that, when a weight is applied to the seat, the one or more teeth of the second structure, a pivot point at which the backrest is configured to tilt relative to the column, and the linkage are configured to move together.

Chair including a leaf spring in contact with a linkage to provide resistance to tilting of a backrest of the chair

A chair, comprising, a backrest, a seat coupled with the backrest, a column coupled with the seat, a linkage statically attached to the backrest and rotatably attached below the seat, a leaf spring statically attached at one end and in contact with the linkage to provide a resistance to tilting of the backrest relative to the column, a first structure. A portion of the first structure has an arc shape that includes one or more teeth, and a second structure in contact with the first structure. The chair is configured such that, when a weight is applied to the seat, one or more teeth of the second structure move along the one or more teeth of the first structure to provide an increased resistance to tilting of the backrest relative to the column.

Chair having a leaf spring in contact with a linkage to provide a resistance to tilting of a backrest of the chair relative to a column of the chair

A chair, comprising, a backrest, a seat coupled with the backrest, a column coupled with the seat, a linkage statically attached to the backrest and rotatably attached below the seat, a leaf spring statically attached at one end and in direct contact with the linkage to provide a resistance to tilting of the backrest relative to the column, a first structure fixed to the column. A portion of the first structure has an arc shape that includes one or more teeth, and a second structure in contact with the first structure. The chair is configured such that, when a weight is applied to the seat, one or more teeth of the second structure move along the one or more teeth of the first structure to shorten a working length of the leaf spring and provide an increased resistance to tilting of the backrest relative to the column.

Chair having a leaf spring with a working length that shortens to increase resistance to tilting of a backrest relative to a column

Chair having at least three different components that move together when a weight is applied to the seat, the chair also including a leaf spring in direct contact with the linkage to provide resistance to tilting of a backrest of the chair

Disclosed herein is a reconfigurable apparatus that includes a backrest, a seat coupled with a column, a linkage statically attached to the backrest, a leaf spring in direct contact with the linkage, a first structure fixed to the column, and a second structure. The first and second structures each have one or more teeth. The chair is also configured such that when a weight is applied to the seat, the one or more teeth of the second structure move along the one or more teeth of the first structure to thereby shorten a working length of the leaf spring and provide an increased resistance to tilting of the backrest relative to the column. A process for assembling the reconfigurable apparatus is also described herein.

Reconfigurable apparatus having a leaf spring with a working length that shortens to increase resistance to tilting of a backrest relative to a column, and process for assembling the reconfigurable apparatus

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River Forest, IL, United States of America

Scott Padiak