JPS5880013A - Apparatus for clamping railroad crosstie on bridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention is based on patent application No. 5 filed in 1972 by the inventor.
Utilizes the invention of No. 1642 ``Improvement of bridge sleeper setting hook bolt equipped with double locking washer and co-rotating stopper''.

Bridge ■ When a rail fastened to a sleeper on a beam deviates from the desired position on the beam, or when the rail is installed on a curve, the sleeper may twist to the outside to the right or left on the I-beam. This invention relates to a railway sleeper fastening device that provides even greater effects when mounted.

Conventionally, when railroad sleepers (hereinafter abbreviated as sleepers) are placed and fastened on a bridge, the sleepers are placed on the I beam of the bridge, and architectural hook bolts are inserted into the hook bolt holes of the sleepers from below. Insertion The hook part of the hook bolt is hooked onto the back of the upper surface of the E-beam, and while supporting it by hand, it is fastened by tightening a nut to the threaded part of the 7-piece bolt that is inserted onto the upper surface of the sleeper. If I-beams are installed in a location where the rail line is deviated from the center line or in a curve where the I-beams are installed in a substantially straight line, the sleepers will also be arranged around the rail. ,
It is fastened by being displaced to the right or left. In such a case, it is impossible to fasten a sleeper that has come off the outside of the I-beam because the hook part cannot be engaged with a conventional hook bolt, so even if the hook part is lengthened, the bending will extend and it will be impossible to fasten the sleeper.

In addition, with conventional hook bolts that are fastened in the normal position 2, vibrations caused by passing trains cause the hooks to come off the rotating beam, making it impossible to fasten the sleepers.

Because of the underside of the sleepers, it is difficult to detect and extremely dangerous for train operation.The present invention uses a novel fastening adjustment fitting to fasten the sleepers, which is impossible with the conventional 7 bolts as described above.Patent Application No. 49-51642
This was made possible by using a fastening bolt that was a further improvement on the hook bolt of the issue. The present invention provides a fastening device for railway track bridges and sleepers.

An embodiment of the present invention will be described below with reference to the drawings.
Laying the rail (8) on the beam (I)
When the sleeper (S) moves away from the desired position above or when making a slight curve, the sleeper (S) slightly displaces from the beam (I) and the fastening bolt (6) separates from the beam (I).
Latching nut (4) with improved screw tube of No. 9-51642
Even if the hook piece (6) is still unable to come into contact with the back surface of the upper surface part (IA) of the I-beam (I), it is possible to tighten the sleeper (S) onto the I-beam (I). It is a metal fitting. That is, the metal fitting α) consists of a rectangular U-shaped frame as shown in FIG. ■The beam contacting part (2) that contacts the back side of the upper surface part (IA) of the E-beam (I) is placed facing upward on the length measurement side frame of the part, and the other end is on the other sleeper (8) side. is open laterally, and a part of the bottom of the end is closed with a bottom plate (10) for reinforcement, and a sleeper (8
) The wedge pieces (3) that cut into the back surface are arranged opposite each other in the shape of upward protrusion. Also, between the length measurement side frames (IB) is a bolt stop partition plate for stopping the movement of the fastening bolt (6) provided at a desired position.

In addition, the distance between the measurement side frames of the fastening adjustment fitting (1) is determined by the fastening bolt (
The latch nut (4) screwed onto the lower threaded part (B2) of 6)
The width is such that the hook piece (6) can be inserted into the metal fitting (1).
When the sleeper (8) and the beam (I) are fastened with the fastening bolt CB) through the metal fitting (1), the rotation-preventing clamping piece (5) of the locking nut (4) of the bolt ω) The metal fittings (1
), the hook (6) is fitted between the measuring side frames, and the locking nut (4) is completely prevented from rotating.

In addition, the fastening adjustment fitting (1) is installed more stably, and is fastened as shown in Figure 1.

, (7) is a locking washer, and this washer (7) is used under the head (B1) of the fastening bolt. The anti-loosening washer (7) is rectangular and has right-handed opening bits (7A) erected in parallel on the upper surface of its diagonal corners.

The remaining corners have downwardly bent thorn-like protrusions (7
B) is opposite. In addition, (8) is a rotation-preventing square plate through which the bolt head (B1) can be inserted, and has a hexagonal hole (8A) for stopping the rotation of the bolt head (B1). is perforated.

In addition, (4) of the lower threaded part (B2) of the bolt (2) is a locking nut, and the locking nut (4) has a rotation preventing clamping piece (5) provided on the left and right and an intermediate part of the clamping piece (5). A hook piece (6) is fixedly attached to the top.

Place the sleeper (S) on the I-beam α) on the bridge, and when using the fastening adjustment fittings (1), place the sleeper (8) on the Totoku ■ beam α) in Figure 1. Insert the fastening bolt (6) into the round hole of the locking washer (7) with the biting piece (7A) facing up, pass it through the bolt hole of the sleeper (S) from the top surface of the sleeper (9), and then insert the bolt ( 6) Lower threaded part (B
2) Attach the fastening adjustment fitting (1) to the outside of the beam contacting part () with the wedge piece (3) facing upward, and then screw the locking nut (4) onto the threaded part (B2). Insert the hook piece (6) of the latching nut (4) between the frames of the metal fitting (1), hold the length measurement side frame of the metal fitting (1) with the rotation-preventing clamping piece (5), and hold the length measurement side frame of the metal fitting (1). The ■beam abutting part (2) of ■beam α) is freely brought into contact with the back surface of the upper surface part, and the locking washer (7) is attached.
Rotate the bolt head until the barb (7B) on the back of the bolt stops touching the top surface of the sleeper @), and the wedge piece (3) of the adjustment fitting (1) stops hitting the bottom surface of the sleeper @). . Next, the rotation preventing square plate (8) is fitted onto the bolt head (Bl), and the bolt head (B1) is rotated in a direction to loosen it slightly, that is, counterclockwise.

In such a case, press the two diagonal corners (
8B) follows and rotates, and the two corners (8B) of the corner plate (8) fit into and lock into the bite piece (7A) of the binding washer (7),
The bolt (6) stops rotating. Thus Pol) CB
) is a locking washer (7) and a rotation locking square plate (8).

Through the engagement of the fastening adjustment fitting (1) and the locking nut (4), the perforated wood (S) is firmly fastened onto the I-beam (I), and any loosening of the fastening pole (CB) is completely removed from the hook piece. (6) comes into contact with the back surface of the top surface of the I-beam (I).

By bringing the rotation prevention stopper piece (5) into contact with the side surface of the upper surface of the E-beam (I), the locking nut (4) is completely prevented from loosening and fastened.

The present invention has the above-mentioned configuration and is extremely safe for train operation on bridges.

(1) When installing rails on a bridge, when the rails are slightly curved and the sleeper lines are slightly off the E beam line, the hooks cannot contact the back of the E beam with conventional hook bolts. In addition to making it possible to freely fasten the sleepers on the e-beam, the fastening is simple and extremely strong.

(2) Since the fastening bolts are configured to prevent loosening and the nuts are configured to prevent rotation, there is no chance of the bolts loosening, resulting in outstanding safety in train operation.

(3) The extremely difficult and dangerous work of inserting a hook bolt into a bolt hole from the back side of a sleeper, supporting the hook part by hand, screwing in a nut, and tightening with a spanner, as in the past, is eliminated. It is not only easy to work, but also extremely safe.

(4) With conventional hook bolts, it is necessary to prepare hook bolts of various sizes depending on the dimensions of the backing plate on the E-beam, but with the present invention, even if the threaded part of the bolt is lengthened, Since it protrudes from the bottom of the sleeper, it will not get in the way, so it is economical to make the threaded part long so that it can be used for all dimensions.

(5) Unlike conventional 7-knot bolts, the threaded part and nut are installed behind the sleeper, which prevents corrosion of the threaded part due to vehicle waste, and also makes it difficult to retighten the bolt or replace the sleeper due to corrosion of the screw. 9th grade 1 workability that can be performed extremely easily.

It is extremely superior in terms of train operation.

[Brief explanation of the drawing]

Claims (2)

[Claims] (1) A rectangular U-shaped frame into which a fastening bolt is inserted from above after the sleeper under the sleeper, and the hook piece of the latching nut screwed into the lower threaded part of the fastening bolt is between the measuring side frames. It has an inner width that can be inserted from below and an outer width that can be held by the holding pieces of the locking nut, and the end of the frame that is on the I-beam side is closed in a U-shape by a short side frame. At the same time, an E-beam abutment part is provided facing upward at the top of the length measurement side frame at this end, and the other end, which is on the sleeper side, is open to the side and a part of the bottom is closed with a bottom plate, and the core A railway sleeper fastening device on a bridge, characterized in that wedge pieces that bite into the back side of the sleeper are provided oppositely in a shape that projects upward to constitute a fastening adjustment fitting, and the metal fitting and a fastening bolt are provided. . (2) A detent square plate with a square round hole that can be fitted into the head of the bolt that passes through the bolt hole of the sleeper from above is fitted into the head, and between the square plate and the upper surface of the sleeper. A locking washer with a round hole in the bolt diameter is installed, and a part of the locking washer bites into the sleeper and the other part bites into the square plate to prevent rotation. I under the sleeper
A hook piece that directly contacts the back surface of the upper surface of the beam or is inserted between the frames of the fastening adjustment fitting, and a pair of rotation-preventing clamp pieces of the fastening adjustment fitting that are opposed to the hook pieces at approximately right angles are fixed. A railway sleeper fastening device on a bridge according to claim 1, characterized in that the scale uses a fastening bolt formed by a fastening nut screwed into the scale.