JPS6328962Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fastening device for a guide rail in a three-wire rail laid on a steel base plate.

Conventionally, when connecting ordinary two-wire rails laid on a steel base plate, the gauge is adjusted by moving the clip using a wedge to the clip holder fixed on the steel base plate, and the bolt Some rails are fixed to a steel base plate by fastening clips.

On the other hand, in the recently developed three-wire rail system that has a running rail and a guide rail, the guide rail is laid on a steel base plate or directly on concrete, but unlike the conventional two-wire rail fastening, , it is necessary to minimize the curling of the clip against large lateral pressure, and to fasten it elastically.
It also needs to have an electrical insulation function to prevent electrolytic corrosion caused by leakage current in wet conditions.

Therefore, in the present invention, a clip holder is fixed on a steel base plate on which the guide rail of a 3-wire rail is placed via an insulating pad, and an insulated clip is fastened to the clip holder with a bolt. In a fastening device that presses and locks the upper and side surfaces of the lower flange of the guide rail through a plate, the clip holder has a notch in the middle for inserting the bolt head, and a notch for inserting the bolt head on the guide rail side from the notch. a rotation stopper, a notch for bolt insertion having one end open in the notch on the upper surface of the rotation stopper, connected to the notch on the side opposite to the guide rail, and this connection part being formed in an arc shape and parallel to the guide rail; Each clip has a lateral pressure receiving part, and the clip has a lower flange pressing part on the guide rail side, a long hole for bolt guide in the direction perpendicular to the guide rail in the center, and an arcuate lower surface on the side opposite to the guide rail. The wedges each have a tapered lateral pressure transmitting portion tilted with respect to the guide rail, and the wedge inserted between the lateral pressure transmitting portion of the clip and the lateral pressure receiving portion of the clip holder has a substantially L-shaped cross section. The bent part is formed in an arc shape corresponding to the shape of the lateral pressure transmitting part and the lateral pressure receiving part, and its purpose is to suppress the curling of the clip to a small extent and to facilitate the fastening work. To provide a fastening device.

To explain one embodiment shown below, the first
2 is a sectional front view of FIG. 1, FIG. 3 is a perspective view of the clip holder, and FIG. 4 is a perspective view of the clip.

A guide rail 3 is placed on the upper surface of the steel support plate 1 via an insulating pad 2, and a clip holder 4 is welded and fixed near the guide rail 3.

The clip holder 4 has a notch 6 for inserting the head of the fastening bolt 5 in the middle part, a rotation stopper 7 for the head of the fastening bolt 5 on the side of the guide rail 3 from the notch 6, and the above-mentioned locking part 7 on the upper surface of the stopper 7. A bolt insertion groove 8 is formed in the notch 6 with one end open, and is connected to the notch 6 on the side opposite to the guide rail 3, and this connecting portion 9 is formed in an arc shape and has a receiving surface parallel to the guide rail 3. 10 is formed.

The clip 12 attached to the clip holder 4 with the fastening bolt 5 has a pressing portion 14 on the lower surface of the guide rail 3 side that engages and presses the upper surface 3b and side surface 3c of the lower flange 3a of the guide rail 3 via the insulating plate 13. , a long hole 15 in a direction perpendicular to the guide rail 3 through which the shaft of the fastening bolt 5 is inserted is formed in the center thereof, and a lower hinge portion 16 is formed in an arc shape on the side opposite to the guide rail 3;
It has a lateral pressure transmission portion 18 in which a tapered transmission surface 17 is formed that is inclined with respect to the horizontal direction.

Lateral pressure receiving part 11 of clip holder 4 and clip 12
The wedge 19 inserted between the lateral pressure transmitting part 18 of the lateral pressure transmitting part 18 is made of an insulating material and has a substantially L-shaped cross section, and the outer bent part 20 and the inner bent part 21 connect the connecting part 9 of the lateral pressure receiving part 11 and the lateral pressure receiving part 11. It is formed in an arc shape corresponding to the arc shape of the lower hinge portion 16 of the transmission portion 18 .

Insert the head 5a of the fastening bolt 5 into the head insertion notch 6 of the clip holder 4, move the bolt 5 along the bolt insertion notch 8, and insert the head 5a of the bolt 5 into the head insertion notch 6. While engaging with the rotation stopper 7,
The shaft of the fastening bolt 5 is inserted into the elongated hole 15 of the clip 12, and the clip 12 is attached to the clip holder 4.

A flat washer 22, a flanged elastic insulating bushing 23, a flat washer 24, a spring washer 25, and a spring washer 26 are attached to the shaft of the fastening bolt 5 protruding from the upper surface of the clip 12.
The flat washers 26 are inserted in order, the nuts 27 are loosely screwed in, and the insulating plate 13 is sandwiched between the pressing portion 14 of the clip 12 and the upper surface 3b and side surface 3c of the lower flange 3a. A wedge 19 is inserted between the lateral pressure receiving portion 11 of the clip support 4 and the lateral pressure transmitting portion 18 of the clip 12. The clip 12 is moved perpendicular to the guide rail 3 so that the long hole 15 of the clip 12 is aligned with the fastening bolt 5, and the pressing portion 14 presses against the lower flange 3a.
The side surface 3c of the lower flange 3a is pressed to adjust the position of the guide rail 3, and the nut 27 is further screwed in and the pressing portion 14 presses the upper surface 3b of the lower flange 3a to fasten the guide rail 3.

As described above, the present invention uses a wedge to move the clip in a direction perpendicular to the guide rail, so the position of the guide rail can be easily adjusted using the pressing part of the clip, and the head of the fastening bolt can be moved in the direction perpendicular to the guide rail. Since the bolt is moved from the notch of the clip holder to the rotation stopper, it is easy to install the bolt, and since the bolt is prevented from turning, it is easy to screw the nut into place.Moreover, the lower surface of the clip is formed into an arc-shaped hinge. , because it comes into contact with the lateral pressure receiving part of the clip holder 4 via a wedge, it is easy to manufacture, and it follows sudden vertical vibrations well.
Many practical effects can be achieved, such as being able to minimize curling of the clip.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan view of the fastening device, Fig. 2 is a sectional front view, Fig. 3 is a perspective view of the clip holder, and Fig. 4 is a perspective view of the clip. It is. 1 is a steel base plate, 3 is a guide rail, 3a is a lower flange, 4 is a clip holder, 5 is a fastening bolt, 5a
1 is a head, 6 is a notch for inserting the head, 7 is a head rotation stopper, 8 is a cut groove, 9 is a connecting part, 11 is a lateral pressure receiving part, 1
2 is a clip, 14 is a pressing part, 15 is a long hole, 16
is a lower hinge part, 18 is a lateral pressure transmission part, 19 is a wedge,
20 and 21 are bent portions.

Claims (1)

[Scope of utility model registration request] A clip holder 4 is fixed on a steel support plate 1 on which a guide rail 3 of a three-wire rail is placed via an insulating pad 2, and a clip 12 is fastened with a fastening bolt 5 to the clip holder 4. upper surface 3b and side surface 3 of the lower flange 3a of the guide rail 3 via the insulating plate 13.
In the fastening device that presses and locks the clip holder 4, the clip holder 4 has a notch 6 for inserting the head of the fastening bolt 5 in the middle part, and a notch 6 for inserting the head of the fastening bolt 5 from the notch 6 toward the guide rail 3.
A head rotation stopper 7, a notch 8 having one end open in the notch 6 on the upper surface of the rotation stopper 7 is connected to the notch 6 on the side opposite to the guide rail 3, and this connecting part 9 is formed in an arc shape. The clip 12 has a lower flange pressing portion 14 of the guide rail 3 on the guide rail 3 side, and a fastening bolt 5 perpendicular to the guide rail 3 in the center. Guide slot 1
5 has a tapered lateral pressure transmitting portion 18 whose lower surface is formed in an arc shape and is inclined with respect to the guide rail 3 on the side opposite to the guide rail 3, and the lateral pressure receiving portion 11 and the lateral pressure transmitting portion The wedge 19 inserted between the wedge 18 and the wedge 18 has a substantially L-shaped cross section, and its bent portions 20 and 21 are formed in an arc shape corresponding to the shapes of the lateral pressure receiving portion 11 and the lateral pressure transmitting portion 18. A fastening device for guide rails.