Tire change assist tool

• US 3,973,283 A
• Filed: 11/17/1975
• Issued: 08/10/1976
• Est. Priority Date: 11/17/1975
• Status: Expired due to Term

• Current Assignee: Arnold Boe
• Original Assignee: Arnold Boe
• Inventors: Boe, Arnold
• Primary Examiner(s): Smith, Al Lawrence
• Assistant Examiner(s): Parker, Roscoe V.
• Application Number:
  US05/632,238
• Time in Patent Office: 267 Days
• Field of Search: 7/1 R, 7/1 G, 7/1 E, 254/131, 29/245, 214/332, 214/330, 214/331, 214/333
• US Class Current: 7/100
• CPC Class Codes: B25G 1/007 of crank type
• CPC Class Codes: B60B 29/003 Wrenches, e.g. of the ratchet type B60B29/001 takes precedence; wrenches per se B25B13/00
• CPC Class Codes: Y10T 29/538 Hubcap and hub

Abstract

Tire change assist tool to facilitate mounting and demounting a wheel-carried tire on axle lugs. The invention comprises such a tool comprising an axially elongated rigid bar; socket means forming a wrench at one end of the bar adapted for axle lug nut engagement, means defining a fulcrum axially of the bar and terminally opposite the socket end thereof, and bar side arm means between the bar ends operatively associated with the fulcrum to support the wheel and tire for universal movement in ground-elevated relation responsive to the bar pivoting on the fulcrum and within the wheel locus of registration with the axle lugs.

Claims

1. Tire change assist tool to facilitate mounting and demounting a wheel-carried tire on axle lugs, said tool comprising an axially elongated rigid bar;

means forming a wrench socket at one end of said bar adapted for axle lug nut engagement, means defining a fulcrum axially of said bar and terminally opposite the socket end thereof; and

bar side arm means between the bar ends operatively associated with said fulcrum means to support said wheel and tire for universal movement in ground-elevated relation responsive to said bar pivoting on said fulcrum and within the wheel locus of registration with said axle lugs.

2. Tire change assist tool according to claim 1 in which said socket opens laterally of said bar.

3. Tire change assist tool according to claim 1 in which said socket defines a box wrench for lug nuts.

4. Tire change assist tool according to claim 1 in which said side arm is pivoted in the longitudinal plane of said bar for supporting said wheel and tire in locally left or right rolling relation.

5. Tire change assist tool according to claim 1 including also prying structure formed on the remote end of said side arm adapted to separate a wheel cover from the wheel by manipulation of said bar to pivot said side arm on tire sidewall with the structure in engagement between said wheel and wheel cover.

6. Tire change assist tool according to claim 1 in which said side arm comprises a shaft extending substantially normal to said bar and a pad longitudinally axially journaled on said shaft;

said pad being adapted in one mode of tool use for hand or foot actuation to apply lug nut-turning torque through said bar to said socket in lug nut engagement, and in a second mode of tool use for supporting said wheel carried tire in locally left or right rolling relation by said pad pivoting about said shaft while the tire is ground-elevated for universal movement.

7. Tire change assist tool according to claim 6 in which said socket member opens laterally and at an angle to the longitudinal axis of said bar.

8. Tire change assist tool according to claim 7 in which said socket extends oppositely from said side arm, whereby said arm pad projects outward for easy access to hand or foot when said socket is lug nut engaged.

9. Tire change assist tool according to claim 8 in which said member defines a socket differentially formed with localized lug nut engaging portions to circumferentially engage a lug nut only at the socket mouth, and removably retained on said bar.

10. Tire change assist tool according to claim 9 including also prying structure comprising a flange extension supported by said shaft in projecting beyond said pad, said flange being adapted to pryingly engage a wheel cover when said pad is pivoted on a tire sidewall by bar manipulation.