JPS5910162Y2 - Rail fastening device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for elastically fastening rails by crimping and fixing wire springs onto sleepers and tie plates.

It is easy to elastically fasten the rails by crimping and fixing the wire to sleepers or tie plates using screw spikes or bolts, but in this case, the fastening torque must be adjusted to the designed value during the fastening work. Not only is it required to strictly adhere to the following, there is a risk that the bolt or nut may loosen, so special consideration must be taken in the design to prevent this loosening.

This proposal was proposed in view of the above circumstances, and consists of a fastener that has a hook portion on one side of the head fixed to a sleeper, tie plate, etc., and a center that hooks the head of the fastener. Among the pair of filaments facing each other across the constriction of the loop-shaped piece having a constriction, one of the filaments has a concave curved part shaped so as to be engaged with the hook part and pressed down. , and a curved part for pressing the bottom of the rail which extends from the concave curved part and bulges outward, and the other wire is crimped onto the step, sleeper, or tie plate provided at the head of the fastener. The purpose of the rail fastening device is to enable the rail fastening wire spring to be easily attached and detached on site, and to make use of its spring characteristics. The object of the present invention is to provide an improved rail fastening device that can provide a reliable fastening effect.

The wire spring used in the rail fastening device according to the present proposal is
As mentioned above, since the central constriction of the loop-shaped piece is configured to clamp the head of the fastener fixed to the sleeper or tie plate, the constriction of the wire spring can be attached to the head. The wire spring can be easily attached to the fastener by inserting it from the side so as to sandwich it.

At this time, of the pair of filaments facing each other across the central constriction, the other filament is crimped to the upper surface of the step, sleeper, or tie plate provided on the other side of the head of the fastener. The concave bent portion of the other filament engages with a hook portion provided on one side of the head of the fastener, and is pressed down by the hook portion. The rail bottom pressing curved portion extending in the concave curved portion and bulging outward elastically presses the rail bottom, and thus, according to the present invention, the rail can be reliably fastened by the wire spring.

In this way, according to this proposal, wire springs can be easily installed on site without special processing on the rail laying part, and without using bolts, nuts, or screw spikes, and the rails can be securely fastened using the wire springs. It's Uruchino.

The present invention will be described below with reference to illustrated embodiments.

A is a wire spring, which is a loop-shaped piece with a constriction a in the center, and of a pair of wires facing each other with the constriction a in between, one of the wires is engaged with the hook portion of the fastener described later. It has a concave curved part 1a to be matched with each other, and on both sides thereof, a rail bottom pressing curved part 1b which is curved to bulge outward is extended, and from the end of each curved part 1b, respectively. A curved portion 1C that is directed inward and simultaneously bulges upward is extended, and each curved portion 1C is extended.
From the tip of C, the concave portion 1a is inserted through the constricted portion a.
The linear portions 1d, ld facing each other are curved, leaving a gap b between the linear portions 1d, ld.

B is a fastener fixed to sleeper C, tie plate, etc., and on one side of its head is a hook portion 2 that engages with the recessed portion 1a.
A stepped portion 3 shaped to support the straight portion 1d is provided on the other side.

Further, on the lower surface of the hook portion 2, an arcuate portion 2a bulges out and is configured to press down the concave portion 1a.

In the illustrated embodiment, the hook portion 2 is shaped like a groove, but it may also be shaped like an inverted L shape.

In use, as shown in Figures 3 to 5, a fastener B is fixed to the central part of the constricted part a of the wire spring A to the sleeper C.
Insert the wire bA from the side so as to clamp the head of the rail, engage the concave curved portion 1a with the hook portion 2, support the straight portions 1d and ld on the stepped portion 3, and The bottom pressing curved portion 1b is arranged on the bottom of the rail R.

At this time, the wire spring A is
At the same time as the concave curved portion 1a is rolled down, the straight portions 1d and l
d presses the upper surface of the stepped portion 3, and the curved portion 1b elastically presses the bottom portion of the rail R so that it can be fastened to the sleeper C.

In addition, the central constricted part a of the wire hA clamps the head of the fastener B, and the constricted part a is clamped by both sides of the hook part 2 marked on one side of the head and the other side of the head. Since the concave curved portion 1a and the linear portions 1d and ld are prevented from moving laterally, there is no risk that the wire spring A will fall off during use.

In the embodiment described above, the arcuate portion 2a is bulged out on the lower surface of the hook portion 2 of the fastener B so as to press down the wire spring A. Conversely, the wire spring A has a concave curved portion 1a. A curved portion may be provided that bulges upward.

Further, in the embodiment described above, the wire spring A is shaped symmetrically, and is provided with a curved portion 1C that bulges upward, with a space C formed below the curved portion 1C, and using this space, the wire spring A can be inserted and attached from the side beyond the head of the fastener B, and the curved portion IC does not need to be provided on both the left and right sides, but can be installed on either the left or right side as shown in FIG. It may be provided only in

Further, the step portion 3 of the fastener B may be omitted so that the linear portion 1d is crimped onto the sleeper or tie plate.

In addition, when a strong rail fastening force by the wire spring A is required, as shown in FIGS.
The curved portion 1e that bulges outward between the two is curved so that elastic energy can be further stored.

In the illustrated embodiment, the hook portion 2 of the fastener B has an inverted L-shape, and a gauge block D is interposed between the side surface of the head of the fastener B and the rail R.

In the figure, parts equivalent to those of the above embodiment are given the same reference numerals.

Note that a wedge may be interposed between the step portion 3 of the fastener B and the wire spring A.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the wire harness, FIG. 2 is a perspective view showing an embodiment of the fastener, FIGS. 3 and 4, and FIG.
The figures are a plan view, a front view, and a side view showing one embodiment of the rail fastening device according to the present invention, and FIGS. 6, 7, and 8 are a plan view and a front view showing other embodiments of the present invention. FIG. 9 is a side view as well as a side view, and FIG. 9 is a perspective view showing another embodiment of the wire spring. A: Wire spring, B: Fastener, C:
...Sleeper, R...Rail, a...Neck part, 1a...Concave curved part, 1b...Rail bottom compression curved part, 1d...Straight portion.

Claims (1)

[Scope of utility model registration request] A fastener having a hook portion on one side of the head fixed to a sleeper, tie plate, etc., and a loop-shaped piece having a central constriction portion that clamps the head of the fastener, facing each other by sandwiching the constriction portion. Among the pair of wires, one of the wires has a concave curved portion shaped to engage with the hook portion and be pushed down, and a rail bottom portion extending from the concave curved portion and bulging outward. A rail fastening characterized in that it is provided with a curved part for compression, and the other wire is made of a stepped part or sleeper provided at the head of the fastener, or a wire spring configured to be crimped onto a tie plate. Device.