JP3926899B2 - Rail heating device fixture - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fitting for a rail heating device that is attached to a rail in order to prevent the rail, particularly a branched portion of the rail, from being frozen by snow or the like.
[0002]
[Prior art]
Conventionally, a fixture having a structure as shown in FIG. 7 is used as a fixture for attaching a rail heating device to a rail.
As shown in FIG. 6, the rail 50 to which the rail heating device (not shown) is attached is a long iron object in which the cross-sectional shape of the bottom portion 52 is substantially inverted T-shaped and the rail portion 54 is formed on the upper portion. is there. The rail 50 is placed on a sleeper (not shown) arranged in parallel on the paving stone at a predetermined interval, and there is a gap between the lower surface other than the portion contacting the sleeper and the paving stone (not shown). Has occurred.
[0003]
The attachment 56 is for attaching the rail heating device 60 to the side surface 58 of the rail 50. In addition, the external shape of the heating apparatus 60 for rails attached is formed in the elongate shape so that it can arrange | position along the longitudinal direction of the rail 50 on the substantially vertical side surface 58 of the rail 50. As shown in FIG. In addition, a specific example of the heating mechanism of the heating device 60 may be a mechanism that heats by a heating wire, or an electromagnetic coil is arranged inside to generate an alternating magnetic field toward the iron rail 50, and the inside of the rail 50 It is good also as a mechanism which induces an eddy current and heats.
[0004]
The fixture 56 is slidably inserted into a U-shaped portion 62 that can be fitted to one side surface 52 a of the bottom portion 52 of the rail 50 and a lower piece portion 62 a of the U-shaped portion 62. A hook 64 a is formed at one end extending to the other side surface 52 b, and a rod-like hook member 64 having a male threaded portion 64 b with a nut 66 screwed at the other end is provided at the upper end of the U-shaped portion 62. The upper piece 62b is screwed toward the side surface 58 of the rail 50, and a U-shaped holding metal fitting 68 for holding the rail heating device 60 is attached to the tip in the direction of the side surface 58. The pressing screw 70 is arranged on the upper end of the U-shaped portion 62 by being screwed to both sides thereof with the upper piece 62b as the center, and on the side surface 52a side of the bottom 52 to which the U-shaped portion 62 is fitted. A pair of fastening screws 72 capable of pressing the upper surface downward. There.
[0005]
Next, a procedure for attaching the rail heating device 60 to the rail 50 using the fixture 56 will be described.
First, the nut 66 on the other end side of the hook member 64 is loosened so that the hook 64a side extends beyond the width of the bottom portion 52 of the rail 50. Also, the fastening screw 72 and the pressing screw 70 are also loosened.
The hook 64 a side of the extended hook member 64 is inserted into the gap between the rail 50 and the paving stone, the hook 64 a is engaged with the other side surface 52 b of the rail 50, and the U-shaped portion 62 is connected to the bottom portion 52. It is made to fit in one side 52a.
[0006]
Thereafter, the nut 66 is turned to draw the hook member 64 toward the U-shaped portion 62, and the bottom portion 52 of the rail 50 is tightened between the hook 64 a and the U-shaped portion 62. Further, the pair of tightening screws 72 are rotated to project the tip downward, the one side surface 52a side of the bottom portion 52 is sandwiched between the lower piece portion 62a of the U-shaped portion 62, and the fixture 56 is attached to the rail 50. Fix to the bottom 52.
Finally, the rail heating device 60 is disposed between the presser fitting 68 and the side surface 58 of the rail 50 and the pressing screw 70 is rotated to press and hold the rail heating device 60 against the side surface 58.
[0007]
[Problems to be solved by the invention]
However, the fixture 56 of the conventional rail heating device has the following problems.
When attaching the rail heating device 60 to the rail 50 using the fixture 56, it is necessary to temporarily loosen and retighten the four screws, which takes time. Further, since the male threaded portion 64b of the hook member 64 into which the nut 66 is screwed protrudes to the side of the rail 50, when the rail 50 is inspected, an operator may trip on the protruding portion, which is dangerous. There are also challenges.
Furthermore, since the rail 50 bends up and down every time the train passes, each screw that fastens the fixture 56 to the rail 50 is loosened, and a gap is formed between the heating device 60 and the side surface 58 of the rail 50. It produces and the efficiency which heats the rail 50 falls. There is also a problem that the screws 50 may fall off from the rail 50 due to further loosening.
[0008]
Accordingly, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a rail heating device that can be easily attached, is safe for a rail inspection worker, and does not easily fall off the rail. An object of the present invention is to provide a mounting tool for a heating device.
[0009]
[Means for Solving the Problems]
To achieve the above object, the present onset Ming, bottom a substantially inverted T-shaped, in fitting the rail heating apparatus for attaching a rail heating device rail side rail portion to the upper is formed, A U-shaped portion that can be fitted to one side surface of the bottom portion of the rail, and extends from the U-shaped portion to the other side surface of the bottom portion along the bottom surface of the bottom portion and is engaged with the other side surface at the tip portion. A lower piece provided with an engaging piece to be engaged, and an upper piece extending from the U-shaped portion in the lateral direction of the rail, and a locking metal fitting integrally formed by bending a single metal plate A holding fixture that is attached to the tip of the upper piece portion, holds the rail heating device, and presses the rail heating device against the side surface of the rail by the elastic force of the upper piece portion , The lower piece is bent in a U-shape toward the upper piece at the portion closer to the engagement piece, and the The thickness of the shaped portion is characterized in that it is formed to be thicker than the plate thickness of the upper piece and the lower piece portion.
[0010]
According to this, since the latch fitting fitted to the rail is manufactured by bending a single metal plate, it is pushed and spread from one side of the bottom of the rail against the elastic force of the latch bracket. It is possible to attach to the rail with one touch by fitting and engaging the engagement piece at the tip of the lower piece with the other side surface of the bottom of the rail. In addition, the locking metal fitting is formed in a shape that bends a single metal plate and attaches along the side of the rail when it is attached to the rail, so that the amount protruding to the side of the rail is the conventional example The number of rail inspection workers is less likely to trip on the fixture itself. In addition, the fixture is attached to the rail by its own elastic force, and the heating device is pressed against the side of the rail, so even if the rail is bent up and down during the passage of the train, it does not drop out due to elastic deformation. The heating device can be pressed on. Further, the lower piece is bent in a U -shape toward the upper piece at a portion closer to the engagement piece, and the thickness of the U -shaped portion is set to be equal to that of the upper piece and the lower piece. By forming the U-shaped portion to be thicker than the plate thickness , the U-shaped portion is deformed even if the U-shaped portion is subjected to external pressure. This makes it difficult to remove the fixture from the rail. In addition, the upper piece and the lower piece are bent with respect to both ends of the U-shaped portion, and in particular, the tip of the lower piece bent in a U-shape is always urged upward. Will be. Therefore, even if a downward force is temporarily applied to the engagement piece, it easily returns to the original engagement state and is not easily disengaged.
[0011]
Also, the shaped portion of the U, by mounting the U-shaped reinforcing brackets with a rigid, may be enhanced rigidity.
[0012]
In addition, if the presser fitting is attached to the upper piece so as to be rotatable about an axis parallel to the longitudinal direction of the rail, the rail heating device can be attached in close contact with the side surface of the rail. It becomes.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a fixture for a rail heating device according to the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected about the same component as a prior art example.
First, the structure of the fixture 10 of the rail heating device will be described with reference to FIGS. 1 and 4. This fixture 10 is for attaching the rail heating device 60 to the side surface 58 of the rail 50 having the cross-sectional shape shown in FIG. 6 as described in the conventional example. The rail 50 has a bottom portion 52 that is substantially inverted T-shaped, and a rail portion 54 formed at the top.
The fixture 10 includes a locking metal 12 and a pressing metal 14 that is attached to the upper end portion of the locking metal 12 and holds the rail heating device 60 and presses it against the side surface 58 of the rail 50.
[0014]
In more detail, each component will be described.
The locking metal fitting 12 includes a U-shaped portion 16 that can be fitted to one side surface 52 a of the bottom portion 52 of the rail 50, and the U-shaped portion 16 along the lower surface 52 c of the bottom portion 52 to the other side surface 52 b of the bottom portion 52. A lower piece 20 that extends and has an engagement piece 18 that engages with the other side surface 52b at the tip, and an upper piece that extends from the U-shaped portion 16 toward the side surface 58 of the rail 50. 22, and these components are integrally formed by bending a single metal plate material (a rectangular metal plate as an example).
Further, a cylindrical portion 24 is formed at the distal end portion of the upper piece portion 22 by bending the distal end portion as shown in FIG.
Further, the lower piece portion 20 is a portion closer to the engagement piece 18 (as an example, in this embodiment, a portion on the inner side by a distance of about one quarter of the length of the lower surface of the rail 50 from the engagement piece 18). It is bent in a U shape in the direction of the portion 22 (upward). In this embodiment, it is bent about 5 to 6 degrees as an example.
[0015]
Further, when the upper end portion 16a of the U-shaped portion 16 is fitted to the rail 50, the slope near the one side surface 52a as shown in FIG. The lower end portion 16b reaches a substantially central portion of the lower surface 52c of the rail 50. The distance A between the bent portions of the U-shaped portion 16 is set to be longer than the thickness of the side surfaces 52a and 52b of the bottom portion 52 of the rail 50, and the opening width B gradually increases from the bent portion toward the opening end. It is formed to be narrow. The opening width B at the opening end is set to be shorter than the thickness of the side surfaces 52a and 52b of the bottom 52 of the rail 50.
Thus, the fixture 10 is attached to the rail 50 by setting the contact position between the upper end portion 16a of the U-shaped portion 16 and the upper surface of the bottom portion 52 of the rail 50 as a slope closer to one side surface 52a having a gentle angle. It is made difficult to come off the rail 50 when fitted. Furthermore, by setting the distance A between the bent portions of the U-shaped portion 16 and the opening width B as described above, the force with which the U-shaped portion 16 clamps the bottom 52 of the rail 50 is increased, and the rail 50 is somewhat Even if the inclination of the upper surface of the bottom portion 52 is somewhat increased due to product variations, the upper end of the U-shaped portion 16 always contacts the upper surface of the bottom portion 52 at a point, so that the bottom portion 52 is always held at the deepest position. it can. Therefore, there is an effect that it becomes more difficult to come off.
[0016]
Further, the U-shaped portion 16 is formed so that the rigidity thereof is higher than the rigidity of the upper piece portion 22 and the lower piece portion 20. In the present embodiment, the specific structure for increasing the rigidity is formed in a U shape using a metal material that is more rigid than the metal plate material that forms the locking metal fitting 12 as shown in FIG. The auxiliary metal fitting 26 is attached to the outer surface of the U-shaped portion 16. The auxiliary metal fitting 26 is fixed to the U-shaped portion 16 using a rivet 27 as an example. There is welding as another fixing method, but the elasticity of the fixture 10 is lowered by heat during welding, which is not preferable. In addition to this structure, for example, the U-shaped portion 16 may be formed so that the plate thickness of the U-shaped portion 16 is thicker than the plate thickness of the upper piece portion 22 and the lower piece portion 20, and the rigidity may be increased. (Not shown) may be provided to increase the rigidity.
[0017]
Further, as shown in FIG. 1 and the like, the presser fitting 14 is formed by bending a cross-section in a U-shape using a single metal plate material. A pair of standing pieces 30 each having a through hole 28 are provided in parallel with each other on the back surface at an interval slightly wider than the width of the cylindrical portion 24 formed on the upper piece portion 22. It is installed.
In the holding metal fitting 14, the cylindrical portion 24 of the upper piece portion 22 is disposed between the pair of standing pieces 30 so as to correspond to the respective through holes 28, and the through hole 28 and the cylindrical portion 24 of each upper piece portion 22 are arranged. By attaching the split pins 34 as an example to both ends of the shaft 32 protruding as shown in FIG. 4 through the shaft 32, the mounting tool 10 is mounted on the upper piece portion 22, that is, the mounting tool 10. The rail 50 is attached so as to be rotatable and undetachable about an axis parallel to the longitudinal direction of the rail 50.
[0018]
Next, a procedure for mounting the rail heating device 60 on the rail 50 using the fixture 10 will be described.
As shown in FIG. 2, the fixture 10 is applied to the side surface 52 a side of the bottom 52 of the rail 50 in a state where the rail heating device 60 is arranged on the presser fitting 14. In this state, the one side surface 52a is in a position to be in contact with the upper open end of the U-shaped portion 16.
From this state, the fixture 10 is pushed in the direction of the rail 50. As an example, if the outer surface of the U-shaped portion 16 is hit with a hammer or the like, it can be pushed in with one touch.
As a result, the opening end of the U-shaped portion 16 is pushed and widened, the fixture 10 moves in the direction of the rail 50, and the rail heating device 60 held by the presser fitting 14 is pressed against the side surface 58 of the rail 50. The fixture 10 moves in the direction of the rail 50, and the engagement piece 18 at the tip of the lower piece 20 is engaged with the other side surface 52b of the bottom 52, and is completely fitted to the bottom 52 of the rail 50 as shown in FIG. Get stuck. FIG. 5 is a perspective view showing a state in which the rail 50 is fitted (the split pin 34 is omitted).
[0019]
Thus, when fitting the fixture 10 to the bottom 52 of the rail 50 from the one side surface 52a, the rail heating device 60 first comes into contact with the side surface 58 of the rail 50, and then the top of the locking metal 12 Since the fixture 10 further moves in the direction of the rail 50 while the piece portion 22 is elastically deformed, the presser fitting 14 is always urged in the lateral direction of the rail 50 by the elastic force of the upper piece portion 22 of the locking fitting 12. . Since the presser bracket 14 is rotatable about the shaft 32 as described above, the presser bracket 14 is rotated in accordance with the inclination of the side surface 58 of the rail 50 so that the rail heating device 60 is moved to the side surface of the rail 50. It can be pressed in a state of being in close contact with 58.
Further, even when the rail 50 is bent when the train passes, the fixture 10 itself can be elastically deformed in accordance with the deformation of the rail 50, so that it does not loosen like the conventional fixture 56, and the rail heating device. 60 can always be brought into close contact with the side surface 58 of the rail 50 and does not fall off from the rail 50.
[0020]
Also, the lower piece 20 of the fixture 10 bent in advance in a U-shape is also the lower end of the U-shaped portion 16 when the fixture 10 is completely fitted to the rail 50. The center of the rail 50 is elastically deformed downward and extends along the lower surface 52c of the rail 50.
Accordingly, since the engagement piece 18 at the tip of the lower piece 20 is always urged upward by the elastic force of the lower piece 20, even if some external force is applied to the engagement piece 18 from above, the engagement piece 18 is engaged. The combined piece 18 is less likely to be disengaged from the other side surface 52b of the bottom 52 of the rail 50. Thus, the rail heating device 60 can be securely attached.
[0021]
As an example, when the locking metal fitting 12 is formed using stainless steel having a thickness of 1.5 mm and the stainless steel of 2.0 mm is used for the auxiliary metal fitting, the elastic force of each component of the fixture 10 is the upper piece 22. The pressing force due to the elastic force of the upper piece 22 is about 5 to 10 kilograms. Similarly, the clamping force of the U-shaped portion 16 is about 150 to 250 kilograms. The pressing force of the lower piece 20 is about 5 to 10 kilograms, and a sufficient pressing force of the heating device 60 and a fitting force to the rail 50 can be secured.
Moreover, since the rail heating device 60 is usually long, it is generally held by using two or more fixtures 10 as shown in FIG.
[0022]
Further, when removing, between the engagement piece 18 and the other side surface 52b, while inserting and screwing a screwdriver into the gap between the one side surface 52a of the bottom portion 52 of the rail 50 and the U-shaped portion 16. By simply inserting a screwdriver and moving the engagement piece 18 downward to release the engagement with the other side surface 52b, the opening width B of the U-shaped portion 16 is increased by the elastic force of the fixture 10 thereafter. It narrows and automatically moves to the position shown in FIG. Therefore, it can be removed with a single touch. Further, since the lower surface 52 of the rail 50 and the rivet 27 abut, a gap is generated between the lower surface 52 of the rail 50 and the lower piece portion 20. Therefore, when the driver is inserted into the gap between the one side surface 52 a of the bottom portion 52 of the rail 50 and the U-shaped portion 16, the driver is inserted into the gap between the lower surface 52 and the lower piece portion 20. Even if the lower piece 20 is pushed down, it can be removed in a similar manner.
[0023]
The preferred embodiments of the present invention have been described above in various ways. However, the present invention is not limited to the above-described embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.
[0024]
【The invention's effect】
When the fixture of the heating apparatus for rails according to the present invention is used, the locking metal fitting to be fitted to the rail is manufactured by bending a single metal plate, so that it is locked from one side of the bottom of the rail. It is possible to attach to the rail with one touch by fitting it while pushing it against the elastic force of the metal fitting and engaging the engagement piece at the tip of the lower piece with the other side surface of the bottom of the rail. It will be possible in a short time. In addition, the locking bracket is formed in a shape that bends a single metal plate and attaches along the side of the rail when it is attached to the rail. There is no portion protruding from the rail, and the rail inspection worker is less likely to trip on the fixture itself, which is safe. In addition, since the fixture is attached to the rail by its own elastic force and presses the heating device against the side of the rail, even if the rail is bent up and down during the passage of the train, it is elastically deformed to ensure that the heating device is There is an effect that it can be pressed.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a fixture for a rail heating device according to the present invention.
FIG. 2 is a front view when the fixture of FIG. 1 is applied to one side of the bottom of the rail.
FIG. 3 is a front view showing a state in which a rail heating device is attached to the rail using the fixture of FIG. 1;
4 is a side view showing a state in which a rail heating device is attached to a rail using the fixture of FIG. 1; FIG.
5 is a perspective view showing a state in which a rail heating device is attached to a rail using the fixture of FIG. 1. FIG.
FIG. 6 is a cross-sectional view showing a general structure of a rail.
FIG. 7 is a front view showing an example of a fixture of a conventional rail heating device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Fixing tool 12 Locking metal fitting 14 Holding metal fitting 16 U-shaped part 18 Engagement piece 20 Lower piece part 22 Upper piece part 50 Rail 52 Bottom part 52a One side surface 52b The other side surface 54 Rail part 60 Rail heating device

Claims (3)

In the attachment of the heating device for a rail which attaches the heating device for a rail to the side of the rail in which the bottom portion has a substantially inverted T shape and the rail portion is formed on the top, the fitting can be fitted to one side surface of the bottom portion of the rail A U-shaped portion, a lower piece portion extending from the U-shaped portion to the other side surface of the bottom portion along the bottom surface of the bottom portion, and provided with an engagement piece engaging with the other side surface at the tip portion; A locking bracket integrally formed by bending an upper piece from the U-shaped portion in the direction of the side surface of the rail and bending a single metal plate,
It is attached to the tip of the upper piece portion, and holds the rail heating device, and includes a pressing metal fitting that presses the rail heating device against the side surface of the rail by the elastic force of the upper piece portion ,
The lower piece is bent in a U-shape toward the upper piece at a portion closer to the engagement piece, and the plate thickness of the U-shaped portion is the same as that of the upper piece and the lower piece. An attachment for a rail heating device, wherein the fixture is formed so as to be thicker than a plate thickness . In the attachment of the heating device for a rail which attaches the heating device for a rail to the side of the rail in which the bottom portion has a substantially inverted T shape and the rail portion is formed on the top, the fitting can be fitted to one side surface of the bottom portion of the rail A U-shaped portion, a lower piece portion extending from the U-shaped portion to the other side surface of the bottom portion along the bottom surface of the bottom portion, and provided with an engagement piece engaging with the other side surface at the tip portion; A locking bracket integrally formed by bending an upper piece from the U-shaped portion in the direction of the side surface of the rail and bending a single metal plate,
It is attached to the tip of the upper piece portion, and holds the rail heating device, and includes a pressing metal fitting that presses the rail heating device against the side surface of the rail by the elastic force of the upper piece portion,
The lower piece is bent in a U-shape toward the upper piece at a portion closer to the engagement piece, and a U-shaped auxiliary metal fitting having rigidity is attached to the U-shaped portion. Have
A fitting for a rail heating device. The rail heating device according to claim 1 or 2, wherein the pressing metal fitting is rotatably attached to the upper piece portion about an axis parallel to the longitudinal direction of the rail. Ingredients.

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