Device for relieving or preventing lower back pain
First Claim
Patent Images
1. A device for treating or preventing lower back pain comprising:
- a leg rest;
a single shaft that supports the leg rest; and
a leg rest folding mechanism that pivotally couples the leg rest to the support shaft to move the leg rest from an operational position substantially perpendicular to the support shaft to a storage position lying along the support shaft;
wherein the leg rest folding mechanism includes a pin mechanism and a guide track which cooperate to permit the leg rest to slide and pivot relative the leg rest support shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for treating or preventing lower back pain that is simpler and less costly than previous similar devices. Among the features of the device are a leg rest height adjustment arrangement that is simple to operate and provides substantially continuous height adjustment, a leg rest folding mechanism that pivotally couples the leg rest to a leg rest support shaft to place the leg rest in operative and storage positions, and a flexible cover that does not substantially change its length during height adjustment.
57 Citations
20 Claims
-
1. A device for treating or preventing lower back pain comprising:
-
a leg rest; a single shaft that supports the leg rest; and a leg rest folding mechanism that pivotally couples the leg rest to the support shaft to move the leg rest from an operational position substantially perpendicular to the support shaft to a storage position lying along the support shaft; wherein the leg rest folding mechanism includes a pin mechanism and a guide track which cooperate to permit the leg rest to slide and pivot relative the leg rest support shaft. - View Dependent Claims (2)
-
-
3. A device for treating or preventing lower back pain comprising:
-
a leg rest; a leg rest support assembly including a leg rest support shaft coupled to the leg rest; a drive unit including a drive shaft coupled to the leg rest support assembly for imparting cyclic motion to the leg rest that emulates the motion performed by a physiotherapist; a bellows forming a flexible cover for an upper end of a housing that contains the drive unit; and a leg rest height adjustment mechanism that cooperates with the leg rest support assembly to raise and lower the leg rest relative to the drive unit, wherein the length of the bellows is substantially unchanged during height adjustment and is only long enough to accommodate the cyclic motion of the drive shaft. - View Dependent Claims (4, 5)
-
-
6. A device for treating or preventing lower back pain comprising:
-
a leg rest; a leg rest support shaft; a drive unit coupled to the leg rest support shaft for imparting cyclical motion to the leg rest that emulates the motion performed by a physiotherapist; and a height adjustment mechanism operative to move the leg rest support shaft relative to the drive unit to provide substantially continuous adjustment a height of the leg rest. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification