Back to results
US 4,395,074 AGranted
Connecting spike for flexibly connecting two chain links of a track
AssigneeHuber+Suhner AG
InventorsWalter Haldimann, Fritz Held, Rudolf Fehr
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHuber+Suhner AG
InventorsWalter Haldimann, Fritz Held, Rudolf Fehr
Estimating the term…
A connecting spike (16, 17, 18) is used for flexibly interconnecting two chain links (1, 2) of a track, specifically for tanks. The spike comprises a metal bolt (8) with a vulcanized-on rubber sheathing (13). On inserting spike (16) into bores (5) of chain links (1, 2), it is elastically deformed. Sheathing (13) is one-part developed and has thicker and thinner points (14 resp. 15), the material strengths of which are higher (S.sub.o) resp. lower (S.sub.2) than is the difference between the radius of bolt (8) and that of bores (5). This improvement provides increased life and reduced chain expansion because the connecting spike completely fills up the bores.
Connecting spike for flexibly connecting the chain links of a track, where said spike comprises a metal rod, and an integral elastic sheathing undetachably bonded thereto, said sheathing having thicker and thinner portions, said thicker portions being provided by longitudinal ribs and said thinner portions being provided by longitudinal channels having an approximately circular-segmented cross-section, such that the radius of the cross section of said spike at said thicker portions is greater and at said thinner portions is smaller respectively than the radius of the chain link bore of said track, said sheathing upon insertion of the spike into said chain link bore being elastically deformed such that axial shift of said spike within said bore is substantially prevented.
Connecting spike for flexibly connecting the chain links of a track, where said spike comprises a metal rod, and an integral elastic sheathing undetachably bonded thereto, said sheathing having thicker and thinner portions, said thicker portions being provided by annular ribs and said thinner portions being provided by annular channels having an approximately circular-segmented cross-section, such that the radius of the cross section of said spike at said thicker portions is greater and at said thinner portions is smaller respectively than the radius of the chain link bore of said track, said sheathing upon insertion of the spike into said chain link bore being elastically deformed such that axial shift of said spike within said bore is substantially prevented.
Connecting spike for flexibly connecting the chain links of a track, where said spike comprises a metal rod, and an integral elastic sheathing undetachably bonded thereto, said sheathing presenting a polygonal-shaped cross-section having rounded corners and wherein the connecting lines of said corners are substantially straight, said sheathing having thicker portions provided at said rounded corners and thinner portions provided at the central portion of said connecting lines, such that the radius of the cross section of said spike at said thicker portions is greater and at said thinner portions is smaller respectively than the radius of the chain link bore of said track, said sheathing upon insertion of the spike into said chain link bore being elastically deformed such that axial shift of said spike within said bore is substantially prevented.
Dependencies are inferred from the claim text.