Quad cane

• US 4,085,763 A
• Filed: 09/02/1976
• Issued: 04/25/1978
• Est. Priority Date: 05/06/1976
• Status: Expired due to Term

• Current Assignee: Graham-Field Temco, Inc.
• Original Assignee: Tempo Products Co., Inc.
• Inventors: Thomas, Morton I.
• Primary Examiner(s): Schroeder, Werner H.
• Assistant Examiner(s): Berman, Conrad L.
• Application Number:
  US05/719,741
• Time in Patent Office: 600 Days
• Field of Search: 135/69, 135/75, 403/33, 403/108, 403/109, 403/322, 403/324, 403/328, 248/408, 248/409, 248/4, 248/413
• US Class Current: 135/69
• CPC Class Codes: A45B 7/00 Other sticks, e.g. of cranked shape
• CPC Class Codes: A61G 5/10 Parts, details or accessories
• CPC Class Codes: A61H 2003/0205 Crutches with no pivoting movement during use, e.g. tripods
• CPC Class Codes: A61H 3/00 Appliances for aiding patients or disabled persons to walk about apparatus for helping babies to walk A47D13/04; orthopaedic devices for correcting deformities of, or supporting, limbs A61F5/0102; exercising apparatus for the feet or toes A63B23/10; stairways or ramps E04F11/00
• CPC Class Codes: A61H 3/02 Crutches
• CPC Class Codes: Y10T 403/32459 Retainer extends through aligned recesses
• CPC Class Codes: Y10T 403/32483 Spring biased
• CPC Class Codes: Y10T 403/592 Ball detent
• CPC Class Codes: Y10T 403/598 Transversely sliding pin
• CPC Class Codes: Y10T 403/604 Radially sliding catch

Abstract

A quad cane includes a stabilizing device for improving the strength and rigidity of the cane. The stabilizing device comprises a collar having an interior opening therein and a wing screw which is threadably received in a hole which communicates the interior opening of the collar to the exterior thereof. The collar is drive fit over the exterior hollow sleeve of the upper portion of the quad cane in such a way that the threaded hole is located opposite an aperture in the sleeve. By rotating the threaded wing screw downwardly it is possible to impinge against the inner tubular member and immobilize the outer hollow sleeve relative to the inner tubular member of the cane. The stabilizing device is typically used in conjunction with a spring-loaded push button which serves to help adjust the height of the quad cane.

Claims

1. A quad cane apparatus comprising:

an upper section having a handle and a hollow sleeve attached thereto, said hollow sleeve including a plurality of apertures therein;

a lower section including a tubular means received by said hollow sleeve in an interlocking telescoping relationship;

a foot portion attached to said tubular means, said foot portion including four feet having rubber-like tips;

a locking means for locking said hollow sleeve relative to said tubular means, said locking means comprising a spring-loaded button at least partially housed inside of said tubular means, said spring-loaded button being adapted to pop through one of said apertures in said hollow sleeve; and

, a stabilizing means including;

a collar attached to said hollow sleeve, said collar including a threaded hole therethrough, said threaded hole being located opposite one of said apertures in said hollow sleeve; and

,

a connecting means for selectively connecting said collar to said tubular means through at least one of said apertures in said hollow sleeve, said connecting means comprising a wing-type threaded screw-like means threadably received in said threaded hole, the threads of said threaded screw-like means including a stop means thereon so that said threaded screw-like means cannot back out of said threaded hole, said collar further including a first section through which a portion of said threaded screw-like means is visible, a second approximately annular section with a diameter slightly less than the outside diameter of said hollow sleeve, and a third relief section for accomodating the flow of said hollow sleeve when said apparatus is assembled on said hollow sleeve.

2. The apparatus of claim 1 wherein said stop means on said threaded screw-like means comprises a portion of said threaded screw-like means which is deformed.