Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1992-04-27
1993-02-16
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Assembling or joining
408 1R, 408 96, B23P 1902
Patent
active
051859157
ABSTRACT:
A method of adjusting the length of a vehicle brake booster output rod and assembling the same into the brake booster is provided, the output rod being a thermoplastic or thermoset material that is generally cylindrical in shape with a central longitudinal bore with an axial stop means, and the output rod having an insertable button having a head with an attached stem, the booster having a housing with a central opening surrounding the output rod with a surrounding first formed surface for mounting a master cylinder, the method including piloting a cutting tool by inserting an elongated member into the bore of the output rod, orienting the cutting tool by mating a fixture locationally associated with the cutting tool on the first formed surface of the vacuum booster housing, preloading the output rod with the elongated rod by contacting means with the elongated rod to simulate a spring load of a master cylinder, cutting the output rod with the cutting tool to the correct dimension, removing the elongated member from the output rod bore, and inserting the stem of the button into the output rod with a sheet material juxtaposed between the stem and the bore of the output rod causing an interference fit retaining the button into the output rod bore.
REFERENCES:
patent: 2560951 (1951-07-01), Henderson et al.
patent: 4606103 (1986-08-01), Koehl et al.
patent: 4794894 (1989-01-01), Gill
patent: 4819525 (1989-04-01), Rabe
Baumaster Thomas R.
Flory Donald M.
Osterday Craig A.
Osterfeld Douglas L.
Trego Michael P.
Eley Timothy V.
General Motors Corporation
Helms Ernest E.
Martin C. Richard
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