Disk brake wheel stud insertion and removal tool

Patent metadata

Field	Value
Publication number	US-9751199-B2
Application number	US-201514616693-A
Country	US
Kind code	B2
Filing date	Feb 7, 2015
Priority date	Feb 10, 2014
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A wheel stud press assembly for displacing a wheel stud relative to a wheel opening in a wheel flange comprising a frame assembly and a drive system. The frame assembly defines first and second arm portions and a drive axis. The drive axis extends between the first and second arm portions. The drive system comprising a drive rod and is supported by the frame assembly to displace the drive rod along the drive axis. When the drive rod engages the wheel stud and the first and second arm portions engage the wheel flange, operation of the drive system forces the wheel stud out of the wheel opening between the first and second arm portions.

First claim

What is claimed is:

1. A wheel stud press assembly for displacing a wheel stud relative to a wheel opening in a wheel flange comprising:
a frame assembly defining a drive axis, the frame assembly comprising
a frame member defining a main portion and a shoulder portion,
an anchor member defining first and second arm portions, where the anchor member is detachably attached to the frame member; and

a drive system comprising a drive rod, where the drive system is supported by the shoulder portion of the frame member to displace the drive rod along the drive axis; whereby
the frame member is configured such that, when the anchor member is detachably attached to the frame member, the drive axis extends between the first and second arm portions, and is offset from the main portion of the frame member; and
when the drive rod engages the wheel stud and the first and second arm portions engage the wheel flange, operation of the drive system forces the wheel stud out of the wheel opening between the first and second arm portions.

2. A wheel stud press assembly as recited in claim 1 , in which:
the frame member further defines a threaded opening;
the drive rod defines a threaded surface; and
the threaded surface engages the threaded opening such that axial rotation of the drive rod relative to the frame assembly displaces the drive rod along the drive axis.

3. A wheel stud press assembly as recited in claim 1 , in which:
the drive system further comprises a drive cylinder supported by the frame member;
the drive cylinder supports the drive rod to define a drive chamber; and
pressurized fluid within the drive chamber acts on the drive rod to displace the drive rod along the drive axis.

4. A wheel stud press assembly as recited in claim 1 , in which the drive system further comprises at least one seal arranged to inhibit flow of pressurized fluid between the drive rod and the drive cylinder.

5. A wheel stud press assembly as recited in claim 1 , in which:
the drive system further comprises a piston cap connected to the drive rod;
the piston cap is arranged to define a portion of the drive chamber; and
pressurized fluid within the drive chamber acts on the drive rod through the piston cap.

6. A wheel stud press assembly as recited in claim 5 , in which the drive system further comprises at least one seal supported by the piston cap to inhibit flow of pressurized fluid between the drive rod and the drive cylinder.

7. A wheel stud press assembly as recited in claim 5 , in which:
the drive piston defines a first threaded surface;
the piston cap defines a second threaded surface; and
the first threaded surface engages the second threaded surface to secure the piston cap to the drive piston.

8. A wheel stud press assembly as recited in claim 7 , in which the drive system further comprises:
a first seal arranged to inhibit flow of pressurized fluid between the piston cap and the drive cylinder; and
a second seal arranged to inhibit flow of pressurized fluid between the piston cap and the drive rod.

9. A wheel stud press assembly as recited in claim 3 , further comprising a return spring for biasing the drive rod into a retracted position relative to the drive cylinder.

10. A wheel stud press assembly as recited in claim 1 , further comprising:
a space plate adapted to extend between the first and second arm portions such that the drive axis extends through the space plate; and
a spacer adapted to extend around a portion of the wheel stud; wherein
when the space plate engages the wheel stud and the spacer engages the drive rod and the wheel flange, operation of the drive system causes the frame assembly to displace the space plate to force the wheel stud into the wheel opening.

11. A wheel stud press assembly for displacing a wheel stud relative to a wheel opening in a wheel flange comprising:
a frame assembly defining first and second arm portions and a drive axis, where the drive axis extends between the first and second arm portions;
a drive system comprising a drive cylinder and a drive rod, where
the drive cylinder supports the drive rod to define a drive chamber and such that the drive rod is movably between retracted and extended positions relative to the drive cylinder; and
the drive cylinder is supported by the frame assembly such that the drive rod moves along the drive axis when moved between the retracted and extended positions, and
introduction of pressurized fluid into the drive chamber causes the drive rod to move from the retracted position to the extended position along the drive axis;

a space plate adapted to extend between the first and second arm portions such that the drive axis extends through the space plate; and
a spacer adapted to extend around a portion of the wheel stud; whereby
when the drive rod engages the wheel stud and the first and second arm portions engage the wheel flange, introduction of pressurized fluid into the drive chamber causes the drive rod to force the wheel stud out of the wheel opening between the first and second arm portions; and
when the space plate engages the wheel stud and the spacer engages the drive rod and the wheel flange, introduction of pressurized fluid into the drive chamber causes the drive rod to force the wheel stud into the wheel opening.

12. A wheel stud press assembly as recited in claim 11 , in which:
the drive system further comprises a piston cap connected to the drive rod;
the piston cap is arranged to define a portion of the drive chamber; and
pressurized fluid within the drive chamber acts on the drive rod through the piston cap.

13. A wheel stud press assembly as recited in claim 12 , in which the drive system further comprises at least one seal supported by the piston cap to inhibit flow of pressurized fluid between the drive rod and the drive cylinder.

14. A wheel stud press assembly as recited in claim 12 , in which:
the drive piston defines a first threaded surface;
the piston cap defines a second threaded surface; and
the first threaded surface engages the second threaded surface to secure the piston cap to the drive piston.

15. A wheel stud press assembly as recited in claim 14 , in which the drive system further comprises:
a first seal arranged to inhibit flow of pressurized fluid between the piston cap and the drive cylinder; and
a second seal arranged to inhibit flow of pressurized fluid between the piston cap and the drive rod.

16. A wheel stud press assembly as recited in claim 11 , further comprising a return spring for biasing the drive rod into the retracted position.

17. A wheel stud press assembly as recited in claim 11 , in which the frame assembly comprises:
a frame member, and
an anchor member defining first and second arm portions, where the anchor member is detachably attached to the frame member such that the drive axis extends between the first and second arm portions.

18. A wheel stud press assembly for displacing a wheel stud relative to a wheel opening in a wheel flange comprising:
a frame assembly defining first and second arm portions and a drive axis, where the drive axis extends between the first and second arm portions;
a drive system comprising a drive rod and a drive cylinder supported by the frame assembly, where
the drive cylinder supports the drive rod to define a drive chamber, and
pressurized fluid within the drive chamber acts on the drive rod to displace the drive rod along the drive axis, where the drive system is supported by the frame assembly to displace the drive rod along the drive axis;

Assignees

• Tiger tool int inc

Inventors

• Andrews Michael

Classifications

• Y10T29/49822

  by applying force · CPC title

• B25B27/0035 Primary

  for motor-vehicles (wrenches for mounting or dismounting wheels B60B29/003) · CPC title

• Y10T29/53826

  Arbor-type press means · CPC title

• B25B27/023

  using screws · CPC title

• B25B27/026

  fluid driven · CPC title