Adjustment device for removably coupling a seatback to a seat
AssigneeBlake Medical Group Inc.
InventorsChris Hawkins, Stephen Orzel, Graham Hills, Kirk Mosna
Life of this patent
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Abstract
An adjustment device for removably coupling a seatback to a seat. The adjustment device can include a first adjuster and/or a second adjuster for adjusting respective linear and angular positions of the seatback relative to the seat. The first adjuster can include a first linear actuator, a main body and a sliding bed. The second adjuster can include a second linear actuator, a sliding bed and an angle plate pivotably coupled to the sliding bed. The first and second linear actuators can each include a cylindrical worm. The first adjuster and the second adjuster can be independently actuatable to change the position of the seatback relative to the seat.
Claims14
An adjustment device for removably coupling a seatback to a seat, the adjustment device comprising:
- a first adjuster for adjusting a linear position of the seatback relative to the seat;
- and
- a second adjuster for adjusting an angular position of the seatback relative to the seat,
- wherein:
- the first adjuster comprises a first linear actuator,
- comprising a main body and a sliding bed, and the first linear actuator links the main body and the sliding bed such that actuating the first linear actuator causes linear displacement of the sliding bed relative to the main body, and
- the first linear actuator comprises a first cylindrical worm, and threads of the first linear actuator mesh with a threaded recess of the sliding bed;
- and
- the second adjuster comprises a second linear actuator,
- comprising the sliding bed and an angle plate pivotably coupled to the sliding bed, and the second linear actuator links the sliding bed and the angle plate such that actuating the second linear actuator causes angular displacement of the angle plate relative to the sliding bed, and
- the second linear actuator comprises a second cylindrical worm, and worm threads of the second linear actuator mesh with teeth of the angle plate.
An adjustment device for removably coupling a seatback to a seat, the adjustment device comprising:
- a first adjuster for adjusting a linear position of the seatback relative to the seat;
- and
- a second adjuster for adjusting an angular position of the seatback relative to the seat,
- wherein:
- the first adjuster comprises a first linear actuator,
- comprising a main body and a sliding bed, and the first linear actuator links the main body and the sliding bed such that actuating the first linear actuator causes linear displacement of the sliding bed relative to the main body, and
- the first linear actuator is actuated about a first axis, and the sliding bed translates between first and second linear positions in a direction that is parallel to the first axis;
- and
- the second adjuster comprises a second linear actuator,
- comprising the sliding bed and an angle plate pivotably coupled to the sliding bed, and the second linear actuator links the sliding bed and the angle plate such that actuating the second linear actuator causes angular displacement of the angle plate relative to the sliding bed, and
- the second linear actuator is actuated about a second axis, and the angle plate rotates between first and second angular positions about an axis that is perpendicular to the second axis,
- wherein the first adjuster and the second adjuster are independently actuatable to change the linear and angular positions, respectively, of the seatback relative to the seat.
Dependencies are inferred from the claim text.