Expanding insert for a rail spike
AssigneeSersa Group AG (Schweiz)
InventorChristian Schnyder
Life of this patent
Estimating the term…
Abstract
An expanding insert (4) for rail spikes is bent from a bar material and has two first and second limbs (40, 41) which are connected to one another via a first bend (43) and extend at least approximately parallel to one another, and a third limb (42) connected via a second bend (44) to the second limb (41). The first limb (40) and the second limb (41) are located in a common first plane (E1) and the third limb is located in a second plane (E2) which is substantially perpendicular to the first plane.
Claims15
An expansion insert (4) for rail spikes, wherein the expansion insert is bent from a bar material, has two, first and second legs (40, 41) that are connected together via a first bend (43) and extend at least approximately parallel to one another, and also has a third leg (42) connected to the second leg (41) via a second bend (44), characterized in that the first leg (40) and the second leg (41) are located in a common first plane (E1), and in that the third leg is located in a second. plane (22) which is substantially perpendicular to the first plane.
The expansion insert as claimed in either of the preceding claims, characterized in that the first leg (40) has a free end (46) which forms an at least approximately rectilinear extension of the first leg (40).
The expansion insert as claimed in one of the preceding claims, wherein the third leg (42) has a free end (45) which forms at least approximately, preferably exactly, a rectilinear extension of the third leg (42).
The expansion insert, as claimed in one of the preceding claims, wherein the first leg (40) and/or the third leg (42) have at their free ends (46, 45) a hooking section (47) which extends at an angle, preferably perpendicularly, to the respective leg (40, 42).
The expansion insert as claimed in one of the preceding claims, wherein it is produced in one piece from a bar material.
The expansion insert as claimed in one of the preceding claims, wherein the first bend (43) is located in the first plane, and/or wherein the second, bend (44) is located in the second plane.
The expansion insert as claimed in one of the preceding claims, wherein the first and second legs (40, 41) extend at least approximately parallel to one another and/or wherein the first leg (40) and the second leg (41) are at least approximately the same length.
The expansion insert as claimed in one of the preceding claims, wherein the third leg (42) extends at an acute angle or at least approximately parallel to the second leg (41).
The expansion insert as claimed in one of the preceding claims, wherein the third leg (42) is designed to be shorter than the first and/or second leg (40, 41).
The expansion insert as claimed in one of the preceding claims, wherein the third leg (42) extends along at least two thirds of the length of the expansion insert.
The expansion insert as claimed in one of the preceding claims, wherein the first bend (43) and the second bend (44) have the same bending radius.
Dependencies are inferred from the claim text.