Center support for blade of earthmover

Details Center support for blade of earthmover Center support for blade of earthmover

1978-12-19

1980-08-12

Shedd, Wayne L.

Joints and connections

With distinct fluid or article handling or directing feature

Including port or reservoir communicating with joint

172804, F16D 380, F16L 1700

Patent

active

042170630

ABSTRACT:
A center support member for a tiltable swivelling grading blade on an earthmoving machine which prevents the occurence of internal stresses in the blade generated by tilting of the blade is in the form of a ball and socket joint attached to the center rear of the blade and to a carrier frame on the machine. A shaft slidable in a sleeved mounting carries the ball portion of the joint at one end and the other end of the shaft is spring urged towards the blade by spring means in the sleeved mounting. Stop means in the sleeved mounting limit the stroke of the shaft. Additionally, a piston engaged by the spring means in a chamber in the sleeved mounting is arranged to force lubricant through a feed line to the shaft in response to axial movement of the shaft.

REFERENCES:
patent: 1829964 (1931-11-01), Randall
patent: 2828984 (1958-04-01), Ho Chow
patent: 2977777 (1961-08-01), Bernitz
patent: 3208302 (1965-09-01), Lewis et al.
patent: 3265380 (1966-08-01), Hall et al.
patent: 3858665 (1975-01-01), Winker
patent: 3871193 (1975-03-01), Young
patent: 3922040 (1975-11-01), Carter
patent: 4106170 (1978-08-01), Schoenweis

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