JPH045535Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sleeper fastening device for fastening sleepers supporting a rail onto a track girder.

[Conventional technology]

Conventionally, as shown in FIGS. 8 to 10, a mounting member d made of cast metal or the like having a machined engagement fitting part b and a support part c is welded to the tip of a sleeper a. At the same time, the overhanging part f from the floating rail e is fitted into the engagement fitting part b of the floating rail e.
supporting the levitation rail e and tightening it to the mounting member d with bolts g from an oblique direction, further fitting the levitation rail e into the lower flange portion of the sleeper a on which the levitation rail e is attached,
Two sets of tightening bolts j and nuts k are used to tighten the sleeper downwards using two sets of tightening bolts j and nuts k that fit into longitudinal holes i drilled in the track girder h, and a recess m provided on the upper surface of the track girder h. The two adjusting bolts n that catch it are screwed together,
A fastening device is known in which a support plate O that supports a sleeper a from below is tightened and fixed onto a track girder h.

[Problem that the invention attempts to solve]

In the conventional fastening device described above, a fitting part is constructed using a casting to attach the sleeper to the floating rail e, but the engaging fitting part b shown in FIG. 10 must be machined, and this part Because they are joined by welding, the height is high, and the tightening device fixes the tightening bolts in holes drilled in the track girder, or the adjustment bolts are also received in recesses at predetermined positions. It was difficult to position the sleepers on curved sections.

[Means for solving problems]

The present invention was devised in order to eliminate this problem in view of the above-mentioned circumstances, and eliminates the engagement with the floating rail attached to the tip of the sleeper, as shown in Figure 7. The projecting portions of the track girder are mounted to form a bolt connection 14, and the track girder is provided with upwardly projecting strips 6 in the longitudinal direction and plate-shaped projecting pieces 2a extending horizontally at both corners of the upper surface of the track girder. Two hook-shaped metal fittings 3 are disposed on the track girder so as to be movable on the left and right sides of the sleeper, and the hooks 3a provided at one end are hooked to the overhanging pieces, while the hooks 3a at the other end are symmetrically provided. The V-groove 3b provided in
The receiving recess 3c is provided with a bolt hole 3d for inserting a tightening bolt 9 on the hook side, so that the fastening position can be freely selected with the hook-shaped metal fitting, so that the sleeper can be fastened. It is simple and aims to improve workability.

〔Example〕

Next, an embodiment of a sleeper fastening device equipped with a magnetically levitated rail according to the present invention will be described with reference to the drawings.

Reference numeral 1 denotes sleepers, which have an I-shaped cross section and are arranged in large numbers on the track girder 2 at appropriate intervals, and are attached to the track girder 2 by hook-shaped metal fittings 3, tightening devices 4, and support devices 5. There is.

The track girder 2 is provided with a protruding strip 6 extending upward in the longitudinal direction at the corner of the upper surface, and a plate-shaped overhang piece 2a extending horizontally from the corner in a symmetrical manner.

The hook-shaped metal fitting 3 has a hook portion 3a that is hooked to the overhang piece 2a at one end, a V-groove 3b that fits into the protrusion 6 at the other end, and a support device 5 on the opposite side of the V-groove 3b. A spherical recess 3c that receives an adjustment bolt 8 screwed into the support plate 7, and a bolt hole 3 through which a tightening bolt 9 is inserted.
d is provided on the hook portion 3a side. (Second
, 5 and 6) The tightening device 4 is attached to the sleeper 1 as shown in FIGS. 2 and 4.
A fastening fitting 10 is provided with a fitting groove 11 into which the lower flange 1a is fitted, and a C-shaped fitting groove 11 is provided with bolt holes 10a, 10a through which the tightening bolt 9 is inserted.
When the upper surface of the lower flange 1a of the sleeper 1 that is fitted into the sleeper 1 is tightened with a nut 12 screwed onto a tightening bolt 9, the pressing pieces 11a, 11a protruding from the edge of the fitting groove 11 are pressed and tightened. .

The support device 5 consists of the above-mentioned support plate 7 as shown in FIGS. 2 and 3, and an adjustment bolt 8 screwed into this. 8 to adjust the supporting height.

A floating rail 13 is connected to the tip of the sleeper 1 with bolts 14. (Refer to FIG. 7) On the vehicle body side, an electromagnet 16 is arranged opposite to the levitation rail 13 and is attached to bogies 15, 15 whose front and rear parts are connected by a cross beam 17. Sliding platform 1 supported by air springs 18 at symmetrical positions on left and right carts 15, 15
A traveling vehicle body 21 is mounted on 9 and 19 via linear bearings 20. (Refer to Fig. 1) [Operation] In the present invention, the tightening fitting 10 is fitted to the lower flange 1a of the sleeper 1, and the tightening bolt 9 is further inserted into the bolt hole 3d of the hook-shaped fitting 3. hook part 3
a to the overhanging piece 2a of the track girder 2, and after positioning by fitting the V groove 3b of the hook-shaped metal fitting 3 into the protruding strip 6 on the track girder 2, the tightening metal fitting is fitted to the lower flange 1a of the sleeper 1. Bolt holes 10a, 1 provided in 10
While inserting the tightening bolt 9 into 0a, the lower end of the adjusting bolt 8 screwed into the support plate 7 placed on the lower surface of the sleeper 1 is received by the inner surface of the spherical recess 3c provided in the hook-shaped fitting 3, and the adjusting bolt 8 is inserted into the lower end of the adjusting bolt 8. After rotating and positioning the sleeper 1 horizontally and at a predetermined height using the support plate 7, the tightening fitting 10 is tightened with a nut 12 that is screwed onto the tightening bolt 9.
When tightened, the pressing pieces 11a, 1 of the fastening fitting 10
1a presses the upper surface of the lower flange 1a of the sleeper 1 and firmly fixes it by the clamping support plate 7 and the clamping metal fitting 10. In addition, if readjustment becomes necessary due to deformation such as ground subsidence after many years of use, it can be adjusted freely. Furthermore, the hook-shaped metal fitting 3 can be moved freely,
You can select and fix the sleeper tightening position.

〔effect〕

As mentioned above, the present invention includes a tightening fitting that fits into the lower flange of an I-shaped cross-section sleeper with a rail attached to the tip, and tightens the sleeper downward with two sets of tightening bolts and nuts, and two adjustment fittings. In a sleeper fastening device that tightens and fixes sleepers on a track girder by symmetrically arranging a support plate into which bolts are screwed together and supports the sleeper from below, hook-shaped metal fittings are arranged on the track girder side. Therefore, since all four bolts can be engaged with this hook-shaped metal fitting, unlike the conventional method in which a tightening bolt insertion hole is drilled at a predetermined position or a recess is provided to receive an adjustment bolt, the hook-shaped metal fitting can be engaged with all four bolts. Since the metal fittings can be moved freely and the sleepers can be tightened and fixed by placing them in selected positions, workability is good and there is no waste. Furthermore, the installation of the rails and sleepers as well as their shapes are simple, and no machining or welding processes are required, making them inexpensive.

[Brief explanation of the drawing]

The drawings show an embodiment of a sleeper fastening device equipped with a magnetically levitated rail according to the present invention.
The figure is a front view of the track girder and sleeper installation, and Figure 3 is the 2nd
Figure 4 is a cross-sectional view taken along the line X-X, Figure 4 is a side view of Figure 2,
Figure 5 is a plan view of the hook-shaped fitting, Figure 6 is a side view of Figure 5, Figure 7 is an installation diagram of the floating rail and sleepers, and Figures 8, 9, and 10 are of the conventional track. FIG. 8 is a front view, FIG. 9 is a side view of FIG. 8, and FIG. 10 is an installation diagram of the rail and sleepers. 1... Sleeper, 1a... Lower flange, 2... Track girder, 2a... Overhang piece, 3... Hook-shaped metal fitting, 3a...
...Hook part, 3b...V groove, 3c...Spherical recess, 3d
... Bolt hole, 4 ... Tightening device, 5 ... Support device, 6 ... Protruding strip, 7 ... Support plate, 8 ... Adjustment bolt, 9 ... Tightening bolt, 10 ... Tightening metal fitting, 1
0a... Bolt hole, 11... Fitting groove, 11a...
Pressing piece, 12...Nut, 13...Levitation rail, 14...Bolt, 15...Dolly, 16...Electromagnet, 17...Horizontal beam, 18...Air spring, 19...
...Sliding table, 20...Linear bearing, 21...
Running vehicle body.

Claims (1)

[Scope of utility model registration request] A tightening fitting that fits into the lower flange of an I-shaped sleeper with a rail attached to the tip and tightens the sleeper downwards with two sets of tightening bolts and nuts, and two adjustment bolts are screwed together to tighten the sleeper. In a sleeper fastening device that tightens and fixes sleepers on a track girder by symmetrically arranging a support plate that supports the sleeper from below, the track girder has an upwardly extending longitudinal direction at both corners of the upper surface. Protruding strips and horizontally extending plate-like projecting pieces are provided symmetrically, and two hook-shaped metal fittings are movably arranged on the left and right sides of the sleepers on this track girder, and The hook provided at one end is hooked to the overhang piece, while the V groove provided at the other end is fitted into the protrusion, and further a recess is provided on the opposite side of the V groove of the hook fitting.
A magnetic levitation device is provided with a bolt hole on the hook side, the lower end of the adjustment bolt screwed into the support plate is inserted into the recess, and the tightening bolt for tightening the fastening fitting is passed through the bolt hole to tighten the sleeper supported by the support plate. A sleeper fastening device that supports rails.