US 7,540,520 B2
Extendable and retractable leg rest
Richard T. Barlow, Clarks Summit, Pa. (US); and John C. Carminati, Harvey's Lake, Pa. (US)
Assigned to Pride Mobility Products Corporation, Exeter, Pa. (US)
Filed on Feb. 28, 2008, as Appl. No. 12/39,146.
Application 12/039146 is a division of application No. 10/960864, filed on Oct. 07, 2004, granted, now 7,360,840.
Claims priority of provisional application 60/509501, filed on Oct. 08, 2003.
Prior Publication US 2008/0143165 A1, Jun. 19, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. B62M 1/14 (2006.01)
U.S. Cl. 280—304.1  [297/423.26] 11 Claims
OG exemplary drawing
 
1. An extendable and retractable leg rest comprising:
a support member;
a first elongated member rotatably coupled to the support member;
a second elongated member coupled to the first member for telescopic movement relative to the first member, the second elongated member including a first rack gear and a footrest;
an actuator coupled to the support member and to the first member to rotate the first and second members relative to the support member;
a third elongated member rotatably coupled to the support member and including a second rack gear;
a gear component comprising at least one spur gear and supported by the first elongated member and operatively engaging the first and second rack gears;
a biasing member coupling the third elongated member to the first member to allow relative linear motion between the first and third members, and biasing the third elongated member into operative engagement with the gear component,
wherein as the actuator rotates the first, second, and third members, movement of the third member relative to the first member causes the second member to translate relative to the first member.