Trenching wheel, more especially for digging trenches
First Claim
1. A trenching wheel in which the tools are mounted on a plurality of ring portions removably fixed to the periphery of said wheel, wherein:
- each ring portion (8) has a first (14A) abutment face and a second (14B) abutment face, respectively provided at the ends of said ring portion (8);
there are provided pairs of stops (16A, 16B) fast with said wheel and having respectively third (17A) and fourth (17B) abutment faces, said third and fourth abutment faces of said pairs of stops are slanted so as to converge outwardly of the periphery of the wheel, said third abutment face having a slant corresponding to that of said first abutment face of said ring portion, whereas said fourth abutment face has a slant different from that of said second abutment face, and the space between said second and fourth abutment faces widening outwardly of the periphery of the wheel; and
for each ring portion (8), there is provided a wedge (20) insertable from outside of the periphery of said wheel inwardly thereof between said second (14B) and fourth (17B) abutment faces for urging said first abutment face (14A) against said third abutment face (17A) in order to removably fix said ring portion to said wheel.
1 Assignment
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Accused Products
Abstract
A trenching wheel more especially for digging trenches, of the type in which the tools are mounted on ring portions removably fixed to the periphery of said wheel. The arrangement for fixing each ring portion to the periphery of said wheel include:
a first assembly of two end faces provided respectively at the ends of said ring portion
a second assembly of two abutment faces fixed to the periphery of said wheel and orthogonal to the plane thereof; and
a wedge shaped key insertable from outside the periphery of said wheel inwardly thereof, between an end face of said first assembly and an abutment face of said second assembly for applying the other of said end faces of said first assembly under pressure against the other of said abutment faces of said second assembly.
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Citations
8 Claims
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1. A trenching wheel in which the tools are mounted on a plurality of ring portions removably fixed to the periphery of said wheel, wherein:
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each ring portion (8) has a first (14A) abutment face and a second (14B) abutment face, respectively provided at the ends of said ring portion (8); there are provided pairs of stops (16A, 16B) fast with said wheel and having respectively third (17A) and fourth (17B) abutment faces, said third and fourth abutment faces of said pairs of stops are slanted so as to converge outwardly of the periphery of the wheel, said third abutment face having a slant corresponding to that of said first abutment face of said ring portion, whereas said fourth abutment face has a slant different from that of said second abutment face, and the space between said second and fourth abutment faces widening outwardly of the periphery of the wheel; and for each ring portion (8), there is provided a wedge (20) insertable from outside of the periphery of said wheel inwardly thereof between said second (14B) and fourth (17B) abutment faces for urging said first abutment face (14A) against said third abutment face (17A) in order to removably fix said ring portion to said wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification