Vehicle fenders – Buffer or bumper type – Bumper having impact force absorbing means directly...
Patent
1977-12-23
1979-03-13
Kazenske, Edward R.
Vehicle fenders
Buffer or bumper type
Bumper having impact force absorbing means directly...
213221, 267139, B61F 1904
Patent
active
041438981
ABSTRACT:
A bumper for a suspension of a tracklaying vehicle has a first plate formed with a throughgoing hole through which engages one longitudinal end of a bolt. The other longitudinal end of this bolt is screwed into a second plate that is therefore held at a maximum spacing from the first plate. A helical compression spring having in unstressed condition an overall length greater by a predetermined distance than this maximum spacing is braced in compressed condition between the plates. Two telescoping sleeves, one fixed to each of the plates, coaxially surrounds the rod and have free ends extending past each other. Each of these ends has a respective abutment and these two abutments are spaced apart by a distance substantially equal to the difference between the length of the spring in the compressed and uncompressed condition. Thus should this rod break the two abutments will engage each other and prevent the first plate from being violently ejected.
REFERENCES:
patent: 1564488 (1925-12-01), Nastri
patent: 2145952 (1939-02-01), Ryan
patent: 2620178 (1952-12-01), Lehman
patent: 3084809 (1963-04-01), Lucchese
Fass Carl
Klaus Helmuth
Lause Heinz
Intertrac Viehmann & Co.
Kazenske Edward R.
Ross Karl F.
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