JP3196791U - Orbital pad stripping tool - Google Patents

Abstract

[PROBLEMS] To reduce the lifting height of rails when exchanging track pads, thereby shortening the track pad replacement time, and preventing rail overhang accidents and contact accidents with lifted rails. A track pad stripper is provided. The spatula portion is formed so as to be gradually thinner toward the tip, and a stay portion is raised at a right angle from the base end of the spatula portion. Further, the upper end of the stay portion 12 is connected to the proximal end portion of the grip portion 13 that extends at right angles to the rising direction of the stay portion 12. The grip portion 13 is a handle that extends in a direction opposite to the tip of the spatula portion 11. In this way, the track pad stripping tool 10 that peels the track pad from the lower surface of the bottom of the rail is manufactured. [Selection] Figure 1

Description

  The present invention relates to a track pad stripper, and more particularly to a track pad stripper that strips a track pad attached to the bottom surface of a rail.

A hard rubber track pad is inserted between the rail and the sleeper or between the rail and the tie plate as an underlay of the rail. The same applies to the articulated track crossing. Orbital pads are deteriorated by use, and their hardness and strength are reduced, so they are regularly replaced.
When replacing the pad at the articulated track crossing, the track pad is first peeled off. That is, the worker removes the rail fastening device from the articulated track and lifts the rail by 30 cm or more with the portal crane. At this time, since the track pad has been sandwiched between the rail and the sleeper for a long time, it is generally attached to the bottom surface of the rail (the bottom surface of the bottom portion of the rail). Therefore, conventionally, the track pad is peeled off manually by a worker or using a shovel, and peeled off by a “rail peeling device” described in Patent Document 1, for example.
The rail peeling device is detachably attached to the rail and moves along the rail, and the main body is provided on the main body and is slidably contacted with the lower surface of the bottom of the rail by moving the main body. And a sliding contact portion that peels off the track pad attached to the track.
At the time of pad replacement, the main body is first mounted on the rail, and then the main body is moved along the rail while the sliding contact portion is in sliding contact with the lower surface of the bottom portion of the rail. Thereby, the track pad adhering to the bottom is forcibly peeled off by the sliding contact portion colliding from the length direction of the rail.

JP 2008-231748 A

However, in the “rail peeling device” of Patent Document 1, when replacing the track pad at the connecting track crossing, the rail cannot be used unless the rail is lifted by 30 cm or more. Therefore, the following problems have occurred.
(1) In order to lift the rails high, all rail fastening devices arranged on the articulated track must be removed as a preliminary work. In addition to this, a large number of sleepers arranged in the vicinity of the articulated railroad crossing must also be removed from the rail fastening device, and the rail must be lifted by releasing the fastening device. It was. Therefore, it took a long time for the previous work. In particular, when the target rail of the stripping work is a long rail, the number of sleepers on which the rail fastening device is removed and the rail is lifted is larger than that of a general rail, and the track pad replacement time is further increased. It was.
(2) Further, in the conventional apparatus, since the rail is lifted high in this way, the rail is bent by its own weight, and rail wrinkles are easily generated. As a result, a rail overhang (buckling) accident may occur due to the rail flaw.
(3) Furthermore, there was a problem in the safety aspect of the track pad replacement work. That is, in order to lift the rail higher than the rail embedding groove of the connecting track crossing in this way, when an operator hits the rail or returns the rail to the rail embedding groove, a finger is accidentally placed between the rail and the connecting track. There was a risk of pinching.

  Therefore, as a result of diligent research, the inventor did not forcibly push the peeling body against the track pad from the rail length direction like the conventional rail peeling device. Gradually insert a thin spatula part into the track pad toward the tip, and then grip the grip part connected in a stepped manner via a stay part that rises at a right angle from the base end of the spatula part. Using this principle, I found out that all the problems mentioned above could be solved by pushing down the track pad from the bottom of the rail and stripping it off.

  This device makes it possible to reduce the lifting height of the rail when changing the track pad, thereby shortening the time for replacing the track pad. An object of the present invention is to provide a track pad stripping tool that can prevent injury due to contact with an operator.

  The invention according to claim 1 is a spatula portion formed gradually thinner toward the tip, a stay portion rising at a right angle from a base end of the spatula portion, a right angle from the upper end of the stay portion, and the spatula portion It is a track pad stripping tool provided with the grip part extended in the direction opposite to the front-end | tip.

  According to the first aspect of the present invention, the track pad peeling tool is used in which the spatula portion, the stay portion, and the grip portion are connected in a step shape (in a crank shape) at the time of pad stripping accompanying the track pad replacement. Specifically, between the rail bottom and the track pad, insert a spatula portion that becomes thinner toward the front from the rail width direction or an oblique direction with reference to this width direction, and then grip the grip portion. Using the lever principle where the position is the force point, the position of the spatula contacting the bottom surface of the rail as a fulcrum, and the position of the spatula contacting the track pad as the action point, the track pad is pushed down from the bottom of the rail and peeled off. take. Thereby, the lifting height of the rail at the time of track pad replacement | exchange (pad peeling) can be made low. As a result, the number of rail fastening devices that can be removed and raised on the track pad can be reduced, and as a result, the track pad replacement time can be shortened, and the rail Injuries caused by overhang accidents and contact between the lifted rails and workers can be prevented.

The track pad is an underlay of a hard rubber rail inserted between the rail and the sleeper or between the rail and the tie plate. At the time of pad replacement, the track pad is generally attached to the lower surface of the bottom of the rail due to a load from the rail.
The rail constitutes a part of the track and is a rail that the train travels. The bottom portion of the rail is a portion at the lower end portion of the abdominal portion of the rail, in which a flange is integrally formed in an inverted T shape when viewed from the front.
The effect of using the present invention is enhanced when the rail for the pad replacement is for the connecting track. In other words, in the case of rails for articulated tracks, the work space for stripping track pads is less than that of general rails, where the work space for pad stripping can be easily obtained on the side of the rail simply by removing the ballast (gravel). narrow. Therefore, this device is designed to insert a thin spatula between the bottom of the rail and the track pad from the rail width direction or an oblique direction based on the rail width direction, and peel off the track pad using the lever principle. The peeling tool which concerns on becomes further effective.

As the material for the spatula, for example, various steels can be employed.
The length of the spatula is 5 to 30 cm. If it is less than 5 cm, it is difficult to peel off the track pad, and if it exceeds 30 cm, it is too long and difficult to handle. The preferred length of the spatula is approximately the same length as the width of the track pad, for example, around 20 cm.
The thickness of the base end portion of the spatula portion is arbitrary. For example, it is 3 to 10 mm, preferably around 5 mm.
The thickness of the tip of the spatula is 0.5-3 mm. If it is less than 0.5 mm, the tip may be chipped or deformed during use, and if it exceeds 3 mm, it is difficult to insert the tip between the rail and the track pad.

The tip of the spatula portion may be rounded or flat cut. However, in view of ease of peeling of the track pad using the lever principle, it is preferable that the track pad is cut flat (linearly) along a virtual line orthogonal to the length direction of the spatula portion. That is, the front side of the spatula portion can be used as a fulcrum of the lever, and in this case, the rotation of the spatula portion is stabilized. Further, when the front side of the spatula portion is used as the lever action point, the force acting on the track pad can be dispersed to prevent partial breakage of the track pad (easy to peel off as a whole).
The width of the tip of the spatula is arbitrary. However, considering the ease of peeling of the track pad using the lever principle, it is 5 to 30 mm. If it is less than 5 mm, there is no great difference from the rounded tip of the spatula portion described above, and if it exceeds 30 mm, it is difficult to insert the tip portion of the spatula portion between the rail and the track pad.
The width of the base end portion of the spatula portion is arbitrary. However, considering the ease of inserting the spatula portion between the rail and the track pad, it is preferable to make the length shorter than the width of the tip of the spatula portion. Even if the length is shortened, the base end portion of the spatula portion is thicker than the tip end portion, so that it is not easily broken during use.

As a material of the stay part and the grip part, for example, a metal such as iron or steel can be employed. In addition, wood or synthetic resin may be used. The stay part and the grip part may be integrally formed of the same material or may be connected separately.
The length of the stay portion is arbitrary. However, in consideration of the case where the track pad is peeled off from the rail for the articulated track crossing that is lifted by about 3 cm in the rail embedding groove, 15-30 cm, particularly around 20 cm is preferable.
The length of the grip portion is arbitrary as long as it is easy for an adult male to grip. The grip portion may be provided with a grip cover made of synthetic resin, rubber, wood, ceramics, or the like in order to increase grip force.

  According to the first aspect of the present invention, as a tool for peeling off the track pad from the bottom surface of the rail, the track pad peeling tool for gradually connecting the thin spatula portion and the grip portion in a step shape toward the tip. Adopted. As a result, even if the lifting height of the rail when the pad is peeled off due to the replacement of the track pad is as low as 3 cm, for example, the bottom of the rail with respect to the lifted rail, particularly the rail lifted in the rail embedding groove of the connecting track crossing A spatula part is inserted between the lower surface of the rail and the track pad adhering to the lower surface, and then the gripping position of the grip portion is used as a power point, the position of the spatula part contacting the lower surface of the bottom of the rail as a fulcrum, and Using the lever principle with the position of the part as the action point, the track pad can be pushed down from the bottom surface of the rail and peeled off. As a result, it is possible to reduce the lifting height of the rail when changing the track pad (pad peeling), thereby shortening the replacement time of the track pad, as well as accidents of rail overhang caused by rail flaws and lifting. Accidents caused by contact between the rails and the workers can be prevented.

It is a perspective view of the track pad stripping tool concerning Example 1 of this device. It is a side view of the track pad stripping tool concerning Example 1 of this device. It is a top view of the track pad stripping tool concerning Example 1 of this device. It is a perspective view which shows the use condition of the track pad peeling tool which concerns on Example 1 of this invention. It is a principal part expanded vertical sectional view which shows the peeling work state of the track pad by the track pad peeling tool which concerns on Example 1 of this invention.

  Hereinafter, embodiments of the present invention will be specifically described. Here, the thing for the replacement | exchange of the track pad in the rail laid in the connection track crossing is made into an example.

1 to 4, reference numeral 10 denotes a track pad stripping tool (hereinafter, stripping tool) according to Embodiment 1 of the present invention. The peeling tool 10 includes a spatula portion 11 that is formed so as to be gradually thinned from the base end toward the tip end, a stay portion 12 that rises at a right angle from the base end of the spatula portion 11, and a right angle and spatula from the upper end of the stay portion 12. A grip portion 13 extending in a direction opposite to the tip of the portion 11 is provided.
The stripping tool 10 strips the track pad 16 attached to the lower surface of the bottom 15a of the rail 15 laid on the articulated track crossing 14.
The spatula portion 11 is a forged product made of steel, and the dimensions thereof are a base end width of 14 mm, a base end thickness of 5 mm, a tip end width of 18 mm, and a tip end thickness of 1 mm.
The stay portion 12 and the grip portion 13 are formed by bending one deformed reinforcing bar having a diameter of 9 mm into a substantially inverted L shape. The grip portion 13 is easily gripped by folding the tip of the deformed reinforcing bar, and is formed of a deformed reinforcing bar, so that the grip portion 13 is low in cost and has a high anti-slip effect when the grip portion 13 is gripped.

Next, with reference to FIG. 4 and FIG. 5, the operation | work which peels off the track pad 16 from the lower surface of the bottom part 15a of the rail 15 laid in the articulated track level crossing 14 using the peeling tool 10 of Example 1 is demonstrated. .
When the pads are peeled off when the track pad is replaced, the worker first removes the rubber chute and the cushioning material (not shown) in the rail embedding groove 18 formed in the connecting track 17 of the connecting track crossing 14, and then all the rail fastening devices Then, the rail fastening devices of the plurality of sleepers arranged in the vicinity of the articulated track crossing are loosened. In this state, the rail 15 is lifted by about 3 cm by the portal crane, and the rail is lifted up. Since the typical rail embedding groove 18 has a depth of several tens of centimeters, if the lifting width of the rail 15 is about 3 cm in this way, the bottom portion 15a to which the track pad 16 is attached is the inner space of the rail embedding groove 18. Stay on.

  After that, as shown in FIGS. 4 and 5, the worker grips the grip portion 13 of the peeling tool 10, and the width direction of the rail 15 or between the bottom surface 15 a of the rail 15 and the top surface of the track pad 16 The tip of the thin spatula portion 11 is inserted from an oblique direction with respect to the width direction. Then, using the lever principle, the grip position of the grip portion 13 is a force point, the position of the spatula portion 11 in contact with the lower surface of the bottom portion 15a of the rail 15 is a fulcrum, and the position of the spatula portion 11 in contact with the track pad 16 is an action point. Then, the track pad 16 is pushed down from the lower surface of the bottom portion 15a of the rail 15 and peeled off.

That is, as shown in FIG. 5, when the tip of the spatula part 11 is used as a fulcrum of the lever, the operator holds the grip part 13 and pushes it down, so that the spatula part 11 is centered on the side of the tip. The track pad 16 is pushed down by the portion of the spatula portion 11 inserted between the rail 15 and the track pad 16. In this way, the track pad 16 is peeled off. Moreover, when the position of the spatula part 11 which contacts the lower side of the peeling tool 10 side of the bottom part 15a of the rail 15 is used as a lever fulcrum, the operator pulls up the grip part 13 so that the tip of the spatula part 11 The part rotates downward (not shown) around the position where the part contacts the lower side of the peeling tool 10 side. As a result, the track pad 16 is pushed down from the lower surface of the bottom portion 15a of the rail 15, and the track pad 16 is peeled off.
After the track pad 16 is peeled off, the peeled track pad 16 is collected. Next, a new track pad 16 is disposed below the bottom 15a of the rail 15 in the rail embedding groove 18, and the gate crane is operated to lower the rail 15 to the original position. Thereafter, the rail fastening devices that have been in the released state are fastened, and the rubber chute and the cushioning material are assembled.

  In this way, as the tool for peeling the track pad 16 from the bottom surface of the rail 15, the peeling tool 10 in which the spatula portion 11 and the grip portion 13 that are gradually thinned toward the tip is used in a step shape. The lifting height of the rail 15 at the time of replacement (pad peeling) can be lowered. Therefore, the number of rail fastening devices that are removed and mounted on the rail can be reduced when the pad is replaced. As a result, the replacement time of the track pad 16 can be shortened, and the rail caused by the rail flaw is used. Thus, it is possible to prevent accidents caused by overhanging 15 and injury caused by contact with the lifted rail 15.

Further, since the tip of the spatula part 11 is cut flat along a virtual line orthogonal to the length direction, when the orbital pad 16 is peeled off using the lever principle, the spatula part 11 is rotated. Stabilize. Further, when the front side of the spatula part 11 is used as the lever action point, the peeling force acting on the track pad 16 is dispersed and the external force is smaller than that of the spatula part 11 having a rounded tip. The trajectory pad 16 can be prevented from being damaged by concentrating on a part.
Further, the lifting height of the rail 15 in the above-described state is set to a height at which the rail 15 does not protrude outside the rail embedding groove 18 (about 3 cm in this case), and the stripping tool 10 is used to connect the rail 15. Since the track pad 16 can be peeled off from the bottom 15a of the rail 15 in the rail embedded groove 18 of the track 17, the replacement work of the track pad 16 disposed on the rail 15 for the articulated track crossing 14 can be performed safely and in a short time. Can be done.

  The track pad stripping tool of the present invention is useful as a tool for stripping the track pad attached to the lower surface of the bottom of the rail.

10 Orbital pad stripping tool,
11 Spatula section,
12 Stay section,
13 Grip part.

Claims (1)

The spatula part gradually formed thinly toward the tip,
A stay portion that rises perpendicularly from the base end of the spatula portion;
A track pad stripping tool comprising a grip portion extending from the upper end of the stay portion at a right angle and in a direction opposite to the tip of the spatula portion.

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