Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade
Patent
1978-10-19
1980-12-09
Johnson, Richard J.
Earth working
Mounting for pushed tool at end of motor vehicle
Transversely mounted blade
403 23, 172809, E02F 376
Patent
active
042379865
ABSTRACT:
A flexible guard for preventing rocks and other debris from becoming trapped in the hollow area between the lift cylinder mounting lugs and then being crushed by one of the angle cylinders when the bulldozer blade is angled. In a first embodiment, the flexible rock and debris guard is fitted around the forward end of the lift cylinder mounting lugs on the bulldozer C-frame. It deflects away from the lift cylinder lugs the debris pushed against it by the retracting angle cylinder when the blade is angled. The rock guard has the additional advantage that the normal lubrication of the lift cylinder rod eye can be accomplished without its removal. A second embodiment of the rock guard includes a solid block of rubber or plastic that fits in the hollow space between the upstanding lift cylinder mounting lugs, and it has deflecting surfaces and flexible end portions permitting lubrication of the lift cylinder rod eye thereby providing the same general features as the first embodiment.
REFERENCES:
patent: 3083480 (1963-04-01), Kirchler
patent: 3674096 (1972-07-01), Berg
patent: 3777824 (1973-12-01), Anderson
patent: 4074770 (1978-02-01), Frisbee
J. I. Case Company
Johnson Richard J.
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