JP4667428B2 - Stopper bracket for rail removal work - Google Patents

Description

  To unload rail rails loaded on rail vehicles (generally, new rails for rail replacement) from the rail vehicles onto the roadbed, they were slid onto the ends of the transport rails loaded on the vehicles. The other end of the wire rope with one end locked to the hook of the moving bracket is locked to the anchor provided on the laid rail side, and the rail transporter moves along the laid rail in the direction separating from the anchor. Then, the transport rail on the rail transport vehicle connected by the anchor via the wire rope stays at the corresponding position, that is, from the rail terminal side where one end of the wire rope is locked with the movement of the rail transport vehicle on the roadbed. In other words, it is dragged and unloaded.

  The present invention relates to a stopper for rail unloading work that is used detachably fixed to the rail terminal in order to prevent the moving metal from being detached from the end of the transport rail due to the tension generated in the wire rope in this unloading work. It is.

  Although it is conceivable to omit the moving bracket and lock the wire rope directly to the stopper bracket here, the transport rail is connected continuously, that is, by connecting the preceding rail and the trailing rail. In most cases of continuous unloading, moving brackets are required to connect the front and rear rails for this continuous unloading (there is no direct relationship with the present invention, so a detailed description is omitted) The omission of the moving bracket is not generally performed. That is, for the unloading work, a moving metal fitting fitted to the rail is used, and the moving metal is generally prevented from being detached from the rail by a stopper metal fitting fixed to the rail terminal. .

  To fix the stopper bracket to the rail end, for example, a gap is provided between the stopper bracket and the rail tread, and a wedge body is inserted into the gap, and the insertion operation is forced and moved with a wire rope. The moving bracket is used, and the stopper bracket is fixed to the rail terminal to prevent the moving bracket from being detached from the rail (for example, Patent Document 1) or through the stopper bracket as shown in FIG. Some bolts are fastened to the rail treads so that they are fastened.

Japanese Utility Model Publication No. 6-79804

  When the wedge body is pressed and inserted into the gap by the moving metal fitting, the stopper metal fitting is pressed by the wedge body, that is, moved along the rail so that it comes off the rail and moves. There is a risk that it will not function as a stopper for the bracket.

  Further, in the latter case using bolts as fastening means, the bolts are merely brought into pressure contact with the rail tread at one point, so that they can be easily moved by an external force applied to the moving metal fittings. There is a problem with functionality.

  The present invention has been devised to provide a stopper fitting that has a structure unprecedented and can be securely fixed to the rail, paying attention to the drawbacks of such a conventional example.

  A pair of support substrates, each consisting of an upper piece and a pair of leg pieces provided on both sides of the upper piece, are connected by a sandwiching material that is placed between the upper pieces and placed on the rail head. A sandwiching piece that is configured to press between the lower end of the rail head that fits between the leg pieces between the support substrates facing each other of the metal fitting body, and sandwich the rail head with the sandwiching material. Is interposed by a swing piece projecting in the rail direction, and is pivotally supported by a leg piece of the support substrate. One upper end of the swing piece is first and second from the base end side. Are connected to the first connection piece of the operation piece projecting on one side in a sequential manner by a first connection pin, and the other upper end of the swing piece is The second connecting piece of the operation piece and one end thereof are connected to each other by the second connecting pin and the other end of the continuous connecting member, which is rotatably connected by the third connecting pin. And the third connection pin is positioned at a position crossing an imaginary line connecting the first and second connection pins as the operation piece rotates, and is connected to the second connection piece and one end of the connecting member. Are connected to each other.

  According to the present invention, when the operating piece is rotated by being slid onto the rail, the one swinging piece is rotated at the upper end portion because it is connected to the base portion of the operating piece by the first connection pin. At the same time, the operation piece presses down the third connection pin as it rotates, and at the same time, one end side of the connecting timber connected to the operation piece by the third connection pin At the same time as the lowering, the other oscillating piece connected to the other end side by the second connection pin is pressed at the upper end, and the oscillating piece thus pressed oscillates and Similarly, the sandwiching piece is pressed against the lower end surface of the rail head, and the rail head can be sandwiched between the pair of sandwiching pieces and the sandwiching material opposite to the pair of sandwiching pieces, and fixed to the rail head. In the fixed state, the operating piece, the connecting member and each swinging piece are connected because of the toggle mechanism, so they are securely held. Can be prevented from coming off the rail moving bracket can be provided a stopper bracket unprecedented structure.

  The drawings show an embodiment of a stopper metal fitting for rail unloading work according to the present invention, FIG. 1 is a partially cutaway front view, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 4 is a schematic explanatory diagram showing a state in use, and FIG. 5 is a schematic explanatory diagram of a conventional example.

  In the figure, A is a stopper metal fitting for rail unloading work according to the present invention, and the stopper metal A is detachably fixed to the end portion of the rail R placed on the loading platform b of the rail transporter. The movement of the movable metal fitting m assembled by sliding onto the rail R terminal is restricted. That is, one end is locked to the hook m ′ provided on the movable metal fitting m, and the other end is fixed to the wire rope W locked to the anchor F fixed to the laying rail R ′ from the anchor of the rail carriage (loading platform b). By receiving (load) the tension generated with the movement in the separating direction, the movement with the movement of the loading platform b of the rail R is regulated, and by the continued movement of the loading platform b (rail carriage), the rail R is It is dragged off (relatively) from the loading platform b, and the rail R is unloaded.

  The stopper metal A is configured by assembling the metal fitting body 1, a pair of swing pieces 2, 2 ′ having the same shape, a connecting member 3 and an operation piece 4.

  The metal fitting body 1 is configured by assembling a pair of support substrates 5 and 5, each of which is composed of an upper piece 5 a and a pair of leg pieces 5 b and 5 b provided on both sides of the upper piece 5 a, with a sandwiching material 6 therebetween. It is a thing.

  That is, a clamping material 6 is interposed between the upper pieces 5 a of the pair of support substrates 5, 5, and the clamping material 6 and the upper pieces 5, 5 are provided in the clamping material 6 through the upper piece 5. 7, a bolt 18 is screwed and tightened, and a pair of support substrates 5, 5 are assembled via a sandwiching material 6, and a rail R (load bed b) is provided between the leg pieces 5 b, 5 b of the support substrate 5. When the head portion Ra of the upper portion is fitted, the step (upper end) surface R′a of the head portion Ra is placed and brought into contact with the sandwiching material 6 so as to be in contact with the step surface R′a. An adjusting plate 8 is fitted in the contact portion so as to be freely disengaged. The adjusting plate 8 corresponds to the height width of the rail head portion Ra (the plate thickness changes corresponding to the height width). An appropriate plate thickness prepared in advance is used by engaging with the recess 9.

  The metal fitting body 1 is provided with a gap S between the leg pieces 5b and 5b for sliding and assembling to the rail head portion Ra so that the head portion Ra of the rail R is fitted therein. The engaged rail head portion Ra is disposed between the holding member 6 (the adjusting plate 8 portion thereof) and a position substantially opposite to the holding member 6. The holding piece pieces 10, 10 ′ of the swing pieces 2, 2 ′. (Nail material) and is fixed (fixed) to the rail head portion Ra.

  The oscillating pieces 2 and 2 have the lower part bent and projecting the clamping part pieces 10 and 10 'and projecting in a direction perpendicular to the projecting direction of the clamping part pieces 10 and 10' on both sides of the lower part. It is composed of a thick plate-like body having a slightly L-shaped cross section provided with short round bar-shaped support shafts 11, 11 ′. Then, a pair of the swing pieces 2, 2, the support shafts 11, 11 ′ and the lower part of the leg pieces 5 b, 5 b ′ of the support substrate 5, which are opposed to each other via the sandwiching material 6 of the metal fitting body 1. Receiving holes 12, 12 ′ (12 a, 12 ′ a in the figure are resin support tubes for smoothly rotating the support shaft 11) between the support substrates 5, 5. The sandwiching pieces 10, 10 ′ are arranged so as to be swingably supported by the support substrates 5, 5, arranged to face each other via the rail head portion Ra, and opposed to each other. The press contact portions 10a and 10'a provided on the upper surface are arranged so as to press contact with the lower end surface of the rail head portion Ra.

  A pair of connection piece 2a, 2a, 2'a, 2'a is provided at the upper end of each swing piece 2, 2 ', and the connection piece 2a of one swing piece 2 is connected to the operation piece 4. The pair of first connecting pieces 4a, 4a and the first connecting pin 13A provided, and the connecting piece 2'a of the other swing piece 2 'are respectively connected to one end of the connecting member 3 and the second connecting pin 13B. It is pivotably connected.

  The operation piece 4 is formed of a thick plate-like body interposed between the support substrates 5 and 5 facing each other, and the base of the piece (inner side) surface 4 ′ of the plate-like body has the first connection piece. 4a, 4a and a pair of second connection piece 4b, 4b arranged in the front end side from the first connection piece 4a, 4a and projecting in the same direction as the first connection piece 4a As described above, the first connection piece 4a on the base end 4 ″ side is connected to the one swing piece 2 by the first connection pin 13A, and the second connection piece 4b is connected to the first connection piece 4a. As described above, one end is connected to the other end of the connecting member 3 connected to the other one swing piece 2 ′ by a third connection pin 13 </ b> C so as to be rotatable. The moving piece 2 and the second connecting portion piece 4b are connected to the other swing piece 2 'via a connecting member 3.

  The first to third connection pins 13A, 13B, and 13C are connected to the first connection pin 13A and the second connection pin 13B when the third connection pin 13C moves as the operation piece 4 rotates. The second connection piece 13B is connected to one end of the connecting member 3 so as to cross the imaginary line a and move downward or above the connection pins 13A and 13B, and the third connection pin 13C is connected. When positioned below the imaginary line a from above the pins 13A and 13B, a reaction force (toggle mechanism) is activated, and the operation piece 4 is in the original position direction (not shown in FIGS. 1 and 3) unless artificially performed. For example, the stopper metal A is securely fixed to the rail R by preventing it from rotating counterclockwise.

  14A and 14B are assembly locking holes of the operating rod 15 for raising and lowering the operation piece 4, and the locking holes 14A on the distal end side of the operation piece 4 are used when the operation piece 4 is laid down, and are provided in the intermediate portion. The locking hole 14B is used when the operating rod 15 is locked and raised.

  The connecting timber 3 includes a female screw member 3a and male screw members 3b and 3b 'that are screwed into opposite screw holes provided at both ends of the female screw member 3a, respectively, and are provided with a turnbuckle mechanism. The male screw material portion 3b ′ protruding from the female screw material 3a of one of the male screw materials 3b is rotatably connected to the operation piece 4 (second connection piece 4b thereof) by the third connection pin 13C as described above. At the same time, the part 3b ′ of the male screw member 3b protruding from the female screw member 3a of the other male screw member 3b is connected to the swing piece 2 ′ (the connecting piece 2a ′ thereof) by the second connection pin 13B. As described above, the second connection pin 13B is pivotally connected.

  The reason why the connecting timber 3 has the turnbuckle configuration as described above is to adjust the separation distance between the second connection pin 13B and the third connection pin 13C as appropriate by the turning operation of the female screw material 3a. Corresponding to the size of Ra, the length of the connecting member 3 is adjusted so that the adjusting plate 8 (which is in pressure contact with the rail tread surface R′a) having an appropriate thickness is fitted to the recess 9 of the mediating member 6. Adjustment is performed, and by these adjustment operations, the rail head portion Ra is brought into pressure contact with the adjusting plate 8 (pressing against the rail tread surface) and the clamping piece 10 of the swinging pieces 2, 2 ′ (pressing against the lower end surface of the rail head portion). The stopper metal A is fixed to the head portion Ra of the rail A while being clamped in an optimum state.

  The connecting timber 3 does not need to have a turnbuckle configuration, but by using a turnbuckle configuration, the separation distance between the second connection pin 13B and the third connection pin 13C is adjusted, and the support shaft 11 is the center. A stopper fitting A that can cope with the size (height width) of the rail head portion Ra by changing the rotation angle of the sandwiching piece 10 and can handle a plurality of types of rails R can be provided.

  Then, the stopper bracket A is slid onto the rail head portion Ra, and the holding member 6 is placed on and supported by the tread surface R′a of the rail head portion Ra, and is operated in one locking hole 14B of the operation piece 4. When the operation piece 4 is rotated by engaging the tip of the rod 15 (clockwise in FIG. 1), one swing piece 2 is connected to the operation piece 4 at the first connection portion piece 4a. Since it is connected by the pin 13A, the swinging piece 2 rotates to the support shaft 11 (counterclockwise direction in FIG. 1), and the pressure contact portion 10a of the clamping piece 10 is at the lower end of the rail head portion Ra. Press contact. Further, since one end of the connecting member 3 is connected to the operation piece 4 at the second connecting portion piece 4b by the third connecting pin 13C, the connecting member 3 is pressed by the third connecting pin 13C and the other end side. Is pivoted about the second connection pin 13B connected to the other swing piece 2 '(counterclockwise direction in FIG. 1), and with this turn, the swing piece 2' is the second connection pin. Since it is pressed at 13B as described above, it rotates around the support shaft 11 '(clockwise in FIG. 1), and the pressure contact portion 10'a of the clamping piece 10' of the swing piece 2 'is the rail head. The rail head portion Ra is clamped between the sandwiching pieces 10 and 10 'that are pressed against the lower end of the portion Ra and pressed against the lower end side of the rail head portion Ra, and the clamping member 6, and the stopper metal A is fixed to the rail head portion Ra. Is done.

  In this fixed state, the third connection pin 13C is moved to the lower position of each pin 13A, 13B across the virtual line a connecting the first connection pin 13A and the second connection pin 13B by the rotation of the operation piece. As a result, a so-called toggle mechanism works and is reliably maintained.

  To release from the fixed state, the end of the operating rod 15 is engaged with the locking hole 14A and rotated in the opposite direction (counterclockwise direction in FIG. 3). ′ And 3 can move in the opposite direction to the above movement and can be removed from the rail head portion Ra.

Partially missing front view. The side view of FIG. FIG. Brief description explanatory drawing which shows the state at the time of use. BRIEF DESCRIPTION OF THE DRAWINGS FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal fittings body 2, 2 Oscillating piece 3 Connection member 4 Operation piece 4a First connection part piece 4b Second connection part piece 5 Support substrate 5a Upper piece 5b Leg piece 6 Clamping material 10, 10 'Clamping part piece 13A 1st Connection pin 13B Second connection pin 13C Third connection pin

Claims (2)

  A pair of support substrates, each consisting of an upper piece and a pair of leg pieces provided on both sides of the upper piece, are connected by a sandwiching material that is placed between the upper pieces and placed on the rail head. A sandwiching piece that is configured to press between the lower end of the rail head that fits between the leg pieces between the support substrates facing each other of the metal fitting body, and sandwich the rail head with the sandwiching material. Is interposed by a swing piece projecting in the rail direction, and is pivotally supported by a leg piece of the support substrate. One upper end of the swing piece is first and second from the base end side. Are connected to the first connection piece of the operation piece projecting on one side in a sequential manner by a first connection pin, and the other upper end of the swing piece is The second connecting piece of the operation piece and one end thereof are connected to each other by the second connecting pin and the other end of the continuous connecting member, which is rotatably connected by the third connecting pin. And the third connection pin is positioned at a position crossing an imaginary line connecting the first and second connection pins as the operation piece rotates, and is connected to the second connection piece and one end of the connecting member. Stopper bracket for rail removal work connected to   The stopper metal fitting for rail unloading work according to claim 1, wherein the continuous timber has a turnbuckle structure.

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