Removal device for railway electric heaters and frame for the removal device

Abstract

Traditionally, removing electric heaters for railways has been difficult. [Solution] The removal device for the railway electric heater of the present invention comprises a frame consisting of one and the other leg rods, which are spaced apart from each other in the direction of the railway rail and extend in a direction perpendicular to the rail, and each having a rail side contact portion at its other end that contacts the side surface of the rail, and a connecting rod that connects one end of the one leg rod and the other leg rod, A height adjustment section is provided on the frame portion for adjusting the height of the frame portion from the ground, The device is characterized by comprising an electric heater having a linear heating rod, which is inserted into a hole in an electric heater mounting bracket fixed to a member provided on the rail, and a heater tensioning means for pulling the electric heater, which is interposed between the electric heater and the connecting rod, on the side of the connecting rod.

Description

Technical Field

[0001] The present invention relates to a removal tool for removing an electric heater for preventing freezing, snow accumulation, etc. of a switch such as a railroad turnout machine, and a frame of the removal tool.

Background Art

[0002] In railways in regions where the temperature is below zero or where there is a lot of snow, switches such as turnouts may become inoperable due to freezing or snow accumulation. To prevent this, an electric heater (SA heater) for heating the switch, rail, floorboard, etc. may be installed.

[0003] As the above electric heater, for example, there is one described in Patent Document 1.

[0004] The above electric heater 1 is, for example, as shown in FIGS. 4 and 5, for example, a cylindrical terminal box 2 having a heating portion inside with a diameter of 20 mm, a linear heating rod 3 extending from one end surface 2a of the terminal box 2 and heated by the heating portion, and a power supply line 4 of the heating portion extending from the other end surface 2b of the terminal box 2.

[0005] Then, the linear heating rod 3 is inserted through a through hole 7a formed in a heater mounting fitting 7 welded to the side surface of a member such as a rectangular floorboard 6 fixed perpendicular to the rail 5 under a railway line (railway rail) 5, and installed so that when the heating rod 3 is heated, the surrounding switch, etc. is heated from the side surface of the floorboard 6, etc.

[0006] Note that 8 is ballast and 9 is a sleeper arranged on the ballast 8.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

[0008] However, after some time had passed since the electric heater was installed, when removing the heating rod 3 of the electric heater 1 from the heater mounting bracket 7, the heating rod 3 of the electric heater 1 would become stuck to the installation site due to oil, sand, rust, etc. from the branching connector, requiring a great deal of force to pull it out.

[0009] Furthermore, there were instances where the electric heater 1 was damaged during the removal process.

[0010] Furthermore, it was necessary to pull it out perpendicular to rail 5, which made the removal process difficult.

[0011] The present invention provides a removal tool for an electric heater that eliminates the above-mentioned drawbacks. [Means for solving the problem]

[0012] The present invention provides a removal device for a railway electric heater, comprising: a frame portion comprising: one and the other leg rods, which are spaced apart from each other in the direction of the railway rail and extend in a direction perpendicular to the rail, and each having a rail side contact portion at its other end for contacting the side surface of the rail; a connecting rod connecting one end of the one leg rod and the other leg rod; a height adjustment portion provided on the frame portion for adjusting the height of the frame portion from the ground; and a heater pulling means for pulling the electric heater, which is interposed between the electric heater having a linear heating rod inserted into a hole in an electric heater mounting bracket fixed to a member provided on the rail and the connecting rod, on the side of the connecting rod.

[0013] Furthermore, the rail side contact portion is characterized by being made of rubber.

[0014] Furthermore, each of the above-mentioned leg rods is provided with a rail upper surface mounting portion at its other end, which is placed on the upper surface of the rail.

[0015] Furthermore, the height adjustment section is characterized by comprising a rod that is inserted through a through hole formed in the frame so as to be able to slide up and down, with its lower end in contact with the ground, and a fixing section that fixes the frame and the rod together.

[0016] Furthermore, the heater tensioning means is characterized by comprising an electric heater fixing part for fixing the electric heater, a wire with one end fixed to the electric heater fixing part, a wire winding part for winding the wire, and a connecting rod fixing part for fixing the wire winding part to the connecting rod.

[0017] Furthermore, the wire winding section is a clamper, and the electric heater fixing section is a cam.

[0018] Furthermore, the frame for the removal device of the railway electric heater of the present invention is formed to be spaced apart from each other in the direction of the railway rail and extending in a direction perpendicular to the rail, and each leg rod has a rail side contact portion at the other end that abuts against the side surface of the rail, and a connecting rod connecting one end of the one leg rod and the other leg rod, and a height adjustment portion provided on the frame for adjusting the height of the U-shaped frame from the ground, and a heater pulling means for pulling the electric heater is provided on the connecting rod side between the electric heater having a linear heating rod inserted into a hole in an electric heater mounting bracket fixed to a member provided on the rail and the connecting rod. [Effects of the Invention]

[0019] According to the present invention, even in locations where the height of the ballast on which the electric heater removal device is installed is not constant, the electric heater removal device can be installed at a predetermined height, such as horizontally. This allows the heating rod of the electric heater to be pulled out almost vertically, maximizing the force required to pull out the electric heater, and making it easy to remove the heating rod of the electric heater from the heater mounting bracket.

[0020] In addition, it becomes possible to prevent damage to the electric heater device and the like.

[0021] In addition, since the removal tool can be configured by using the simeller and camler used in railway work, the cost can be reduced.

Brief Description of the Drawings

[0022] [Figure 1] It is a plan view for explaining the removal tool of the electric heater device for railways of the present invention. [Figure 2] It is a side view for explaining the removal tool of the electric heater device for railways of the present invention. [Figure 3] It is a perspective view of the removal tool of the electric heater device for railways of the present invention. [Figure 4] It is an explanatory view of the electric heater device. [Figure 5] It is a plan view showing the attachment state of the electric heater device to the rail.

Mode for Carrying Out the Invention

[0023] Examples of embodiments for carrying out the present invention are shown below.

Example

[0024] The embodiments of the present invention will be described below with reference to the drawings.

[0025] In addition, the same parts as in the conventional example are denoted by the same reference numerals, and the description thereof is omitted. In FIGS. 1 and 2, the description of the sleeper 9 is omitted.

[0026] (1. Explanation of the overall structure)

[0027] As shown in Figures 1 to 3, the present invention comprises a U-shaped frame section 10 consisting of two elongated leg rods 10a and 10b, and a connecting rod 10c connecting one end of the leg rod 10a and one end of the leg rod 10b; a height adjustment section 11 provided on the U-shaped frame section 10, such as the connecting rod 10c, for adjusting the height of the connecting rod 10c from the ground such as ballast; and a heater tensioning means 12 interposed between the electric heater 1 and the connecting rod 10c, on the side of the connecting rod 10c, for pulling the electric heater 1.

[0028] (1.1. Explanation of the U-shaped frame section 10)

[0029] Furthermore, the leg rods 10a and 10b of the U-shaped frame portion 10 are spaced apart from each other in the direction in which the rail extends and are formed to extend in a direction perpendicular to the rail 5, and each of the other ends of the leg rods 10a and 10b has a rail side contact portion 13 that abuts against the side surface of the rail 5.

[0030] Furthermore, it is preferable that the contact portion 13 on the side of each rail be made of an insulating and non-slip material, such as hard rubber.

[0031] Furthermore, as shown in Figure 3, a rail top surface mounting portion 14 may be provided at the other end of each of the leg rods 10a and 10b, and the other ends of each of the leg rods 10a and 10b may be brought into contact with the side surface of the rail 5, and the rail top surface mounting portion 14 may be placed on the upper surface of the rail 5, thereby allowing the other ends of the leg rods 10a and 10b to be positioned in the height direction.

[0032] The rail upper surface mounting portion 14 is formed from an L-shaped metal fitting, for example, consisting of an upwardly extending vertical plate portion 14a with its base fixed to the other end of each of the leg rods 10a and 10b, and a horizontal plate portion 14b that bends at a right angle from the upper end of the vertical plate portion 14a and extends horizontally. By placing the horizontal plate portion 14b of the rail upper surface mounting portion 14 on the upper surface of the rail 5, the other ends of the leg rods 10a and 10b can be positioned in the height direction.

[0033] For example, the lengths of the leg rods 10a and 10b are approximately 1 m, and the length of the connecting rod 10c is approximately 0.5 m.

[0034] (1.2. Explanation of the height adjustment section 11)

[0035] Furthermore, the height adjustment section 11 consists of, for example, a rod 11a that is inserted through the through hole 15 in the central part of the longitudinal direction of the connecting rod 10c so as to be able to slide up and down, and whose lower end is fixed in contact with the ground such as ballast 8, and a fixing section 11b that fixes the U-shaped frame section 10 and the rod 11a.

[0036] The fixing part 11b can, for example, fix the rod body 11a by clamping or the like, and is fixed to the connecting rod 10c.

[0037] Then, the fixing part 11b releases the clamping or other fixing of the connecting rod 10c, allowing the connecting rod 10c to move up and down relative to the rod body 11a. For example, when the U-shaped frame part 10 is approximately horizontal, the fixing part 11b fixes the connecting rod 10c.

[0038] The connecting rod 10c may also be set to the same height as the fixing position (for example, terminal box 2) of the removal device for the electric heater 1.

[0039] Furthermore, an operating part 16, such as a handle, may be provided at the upper end of the rod 11a to facilitate its operation.

[0040] Furthermore, a receiving portion 11c, such as a plate, may be provided at the lower end of the rod 11a to prevent it from being buried in the ballast and to fix it to the ground such as ballast.

[0041] (1.3. Description of the heater tensioning means 12)

[0042] The heater tensioning means 12 comprises, for example, an electric heater fixing part 12a such as a cam that clamps the terminal box 2 of the electric heater 1, a wire 12b with one end fixed to the electric heater fixing part 12a, a wire winding part 12c such as a shimmer that winds the wire 12b, and a connecting rod fixing part 12d that fixes the wire winding part 12c to the connecting rod 10c.

[0043] The connecting fixing portion 12d consists of, for example, a metal fitting such as a shackle that is inserted into or fixed through a through hole 17 provided in the connecting rod 10c, and this fitting is fixed by hooking it onto the hook portion 18 of the wire winding portion 12c.

[0044] Then, by winding the wire 12b with the wire winding section 12c of the heater tensioning means 12, which is interposed between the electric heater 1 and the connecting rod 10c, the electric heater 1 is pulled towards the connecting rod.

[0045] (2. Description of how to use the present invention)

[0046] Because the present invention has the above configuration, in order to remove the heating rod 3 of the electric heater 1, first, the rail side contact portions 13 of each leg rod 10a, 10b of the U-shaped frame 10 are brought into contact with the side of the rail 5, and the rail upper surface mounting portion 14 is positioned on the upper surface of the rail 5, so that the other ends of the leg rods 10a, 10b of the U-shaped frame 10 are positioned in predetermined locations.

[0047] Furthermore, the lower end of the rod 11a, which is inserted through the through hole 15 of the connecting rod 10c, is brought into contact with (or pierced with) the ground such as ballast 8, thereby fixing the rod 11a in a predetermined position.

[0048] Next, the fixing part 11b releases the fixing of the connecting rod 10c, allowing the connecting rod 10c to move up and down relative to the rod body 11a. For example, when the U-shaped frame 10 is at a predetermined height, such as approximately horizontal, the fixing part 11b fixes the connecting rod 10c.

[0049] The height of the connecting rod 10c may be set to be the same as the height of the heating rod 3.

[0050] Next, the heater tensioning means 12 is attached to the U-shaped frame portion 10 and the electric heater 1.

[0051] Specifically, the terminal box 2 of the electric heater 1 is clamped and fixed by the electric heater fixing part 12a such as a cam of the heater tensioning means 12, and the connecting rod fixing part 12d such as a shackle is fixed to the wire winding part 12c such as a tightener.

[0052] Then, in this state, by winding the wire 12b with the wire winding part 12c of a clamper, the terminal 2 is pulled toward the connecting rod 10c that is in contact with the rail 5, so that the heating rod 3 can be pulled out from the through hole 7a of the heater mounting bracket 7. (3. Explanation of the effects of the present invention)

[0053] According to the present invention, even in locations where the height of the ballast on which the electric heater removal device is installed is not constant, the electric heater removal device can be installed at a predetermined height, such as horizontally. This allows the heating rod of the electric heater to be pulled out almost vertically, maximizing the force required to pull out the electric heater, and making it easy to remove the heating rod of the electric heater from the heater mounting bracket.

[0054] Furthermore, it will help prevent damage to electric heaters and other appliances.

[0055] Furthermore, the height adjustment section allows for a gap to be created between the ballast and the U-shaped frame, thereby preventing the winding section of the damper or similar device from coming into contact with the ground.

[0056] Furthermore, since the removal equipment can be constructed using the same clamps and cams used in railway construction, costs can be reduced. [Explanation of Symbols]

[0057] 1. Electric heater 2 Terminal box 2a One end face 2b Other end surface 3 heating rod 4 Power line 5 rails 6 floorboards 7. Heater mounting bracket 7a Through hole 8 ballast 9 Railway sleepers 10 U-shaped frame section 10a leg rod 10b leg rod 10c connecting rod 11 Height adjustment section 11a Rod 11b Fixed part 11c receiving part 12. Tensile means 12a Electric heater mounting part 12b Wire 12c Wire winding section 12d Connecting rod fixing part 13 Rail side contact area 14 Rail upper mounting section 14a Vertical plate part 14b Horizontal plate section 15 Through holes 16 Control section 17 Through hole 18. Hook part

Claims

1. A frame comprising one and the other leg rods, which are spaced apart from each other in the direction of the railway rails and extend in a direction perpendicular to the rails, and each having a rail side contact portion at its other end that abuts against the side surface of the rail, and a connecting rod that connects one end of the one leg rod to the other leg rod, A height adjustment section is provided on the frame portion for adjusting the height of the frame portion from the ground, A removal tool for a railway electric heater, characterized by comprising an electric heater having a linear heating rod inserted into a hole in an electric heater mounting bracket fixed to a member provided on the rail, and a heater pulling means for pulling the electric heater, which is interposed between the electric heater and the connecting rod, on the side of the connecting rod.

2. The removal device for a railway electric heater according to claim 1, characterized in that the rail side contact portion is made of rubber.

3. The removal device for a railway electric heater according to claim 1 or 2, characterized in that each of the above-mentioned leg rods is provided with a rail surface mounting portion that is placed on the upper surface of the rail.

4. The removal device for a railway electric heater according to claim 1, characterized in that the height adjustment part comprises a rod that is inserted through a through hole formed in the frame so as to be able to slide up and down, with its lower end in contact with the ground, and a fixing part that fixes the frame and the rod.

5. The removal device for a railway electric heater according to claim 1, characterized in that the heater tensioning means comprises an electric heater fixing part for fixing the electric heater, a wire with one end fixed to the electric heater fixing part, a wire winding part for winding the wire, and a connecting rod fixing part for fixing the wire winding part to the connecting rod.

6. The removal device for a railway electric heater according to claim 5, characterized in that the wire winding part is a clamper and the electric heater fixing part is a cam.

7. A frame comprising one and the other leg rods, which are spaced apart from each other in the direction of the railway rails and extend in a direction perpendicular to the rails, and each having a rail side contact portion at its other end that abuts against the side surface of the rail, and a connecting rod that connects one end of the one leg rod to the other leg rod, The above-mentioned frame section is provided with a height adjustment section for adjusting the height of the U-shaped frame from the ground, A frame for removing a railway electric heater, characterized in that an electric heater having a linear heating rod is inserted into a hole in an electric heater mounting bracket fixed to a member provided on the rail, and a heater pulling means for pulling the electric heater is provided on the connecting rod side between the electric heater and the connecting rod.

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