Guide spring for a seating device and sprung seating device
AssigneeInventor Group GmbH
InventorThomas Walser
Life of this patent
Estimating the term…
Abstract
A guide spring for a seating device has an inner portion, an outer portion, and a spiral coiled portion extending more than one convolution between the inner portion and the outer portion. The inner portion is firmly attached to a rod and the outer portion is firmly attached to a body. The guide spring thereby secures a radial position of the rod within the body, allowing the rod to move axially relative to the body when a load is placed onto the seating device. When in use, the guide spring deforms from a flat spiral shape to a conical spiral shape with axial movement of the rod relative to the body.
Claims20
A mechanism for a seating device, comprising:
- a body;
- a rod axially movable relative to the body;
- a lower guide spring having an inner portion firmly connected to the rod and an outer portion firmly connected to the body, the inner portion being connected to the outer portion by a spiral coiled portion which wraps around a longitudinal axis of the rod;
- and
- an upper guide spring having an inner portion firmly connected to the rod and an outer portion firmly connected to the body, the inner portion being connected to the outer portion by a spiral coiled portion which wraps around the longitudinal axis of the rod.
A seating device, comprising:
- a base having a base body;
- a seat;
- a rod firmly connected to the seat and axially movable relative to the base body;
- a lower guide spring having an inner portion firmly connected to the rod and an outer portion firmly connected to the base body, the inner portion being connected to the outer portion by a spiral coiled portion which wraps around a longitudinal axis of the rod;
- and
- an upper guide spring having an inner portion firmly connected to the rod and an outer portion firmly connected to the base body, the inner portion being connected to the outer portion by a spiral coiled portion which wraps around the longitudinal axis of the rod.
Dependencies are inferred from the claim text.