Mud removing tool for tread exchange

Abstract

To provide a mud removing tool for tread exchange which efficiently removes mud and rust fixed between a ground surface and a tread.SOLUTION: A mud removing tool 1000 for tread exchange includes a handle 100 extending in a first direction, a blade 200, a first surface 311 to be struck, and a second surface 321 to be struck. The blade 200 is structured to be connected to an end 130 in a first direction of the handle 100, and to extend in a second direction different from the first direction from the end 130. The first surface 311 to be struck is structured to be provided in a direction opposite to the second direction of the end 130 in the first direction of the handle 100, and to be struck in a direction opposite to the second direction. The second surface 321 to be struck is structured to be provided on the end in the first direction of the handle 100, to be provided in a third direction perpendicular to the second direction, and to be struck from the third direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mud removal tool for replacing treads. [Background technology]

[0002] There is a device that detects vehicles passing over a tread that is embedded in the ground, such as a roadway, and detects pressure from above. When removing the tread for replacement, it is necessary to remove the mud and rust that has adhered between the tread and the ground. It has been difficult to efficiently remove this mud using conventional tools.

[0003] Patent Document 1 discloses a technique in which a piston in a cylinder is reciprocated by air pressure to strike a blade. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-76173 Summary of the Invention [Problem to be solved by the invention]

[0005] The technology described in Patent Document 1 applies a strong force in the cutting direction of the blade by striking it in the direction of its extension, but it cannot efficiently remove mud and rust that has accumulated between the tread and the ground.

[0006] In view of the above circumstances, one object of the present invention is to provide a removal tool for replacing treads that can efficiently remove mud and rust that has adhered between the treads and the ground. Other objects can be understood from the following description and explanation of the embodiments. [Means for solving the problem]

[0007] The following describes the means for solving the problems using the numbers and symbols used in the description of the invention. These numbers and symbols are added in parentheses for reference purposes to show an example of the correspondence between the claims and the description of the invention. Therefore, the claims should not be interpreted as being limited by the parenthetical descriptions.

[0008] To achieve the above object, one embodiment of a mud removal tool (1000) for replacing treads comprises a handle (100) extending in a first direction, a blade (200), a first striking surface (311), and a second striking surface (321). The blade (200) is connected to an end (130) of the handle (100) in the first direction and configured to extend from the end (130) in a second direction different from the first direction. The first striking surface (311) is provided on the opposite side of the end (130) of the handle in the first direction, in the second direction, and is configured to be struck from the opposite direction of the second direction. The second striking surface (321) is provided at the end of the handle (100) in the first direction and is provided in a third direction perpendicular to the second direction, and is configured to be struck from the third direction. [Effects of the Invention]

[0009] According to the above-described embodiment, the mud removal tool for replacing a tread can efficiently remove mud and rust that has adhered between the ground and the tread. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a front view of a mud removal tool for replacing a tread in one embodiment. [Figure 2] FIG. 2 is a perspective cross-sectional view of an embodiment in which a footboard is installed. [Figure 3] FIG. 1 is a left side view of a mud removal tool for replacing a tread in one embodiment. [Figure 4] 10A to 10C are diagrams for explaining how to use the mud removal tool for replacing treads in one embodiment. [Figure 5] 10A to 10C are diagrams for explaining how to use the mud removal tool for replacing treads in one embodiment. [Figure 6] FIG. 1 is a plan view of a mud removal tool for replacing a tread in one embodiment. [Figure 7] FIG. 1 is a bottom view of a mud removal tool for replacing treads according to one embodiment. [Figure 8] FIG. 1 is a front view of a mud removal tool for replacing a tread in one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] (Embodiment 1) A mud removal tool 1000 for replacing tread boards according to this embodiment will be described with reference to the drawings. As shown in FIG. 1 , the mud removal tool 1000 for replacing tread boards comprises a handle 100 extending in a first direction, a blade 200, and a striking portion 300. The blade 200 is provided so as to extend in a second direction from an end 130 of the handle 100 in the first direction. The striking portion 300 is provided at the end 130 of the handle 100 in the first direction. The striking portion 300 comprises a first striking portion 310 and a second striking portion 320. The first striking portion 310 is provided on the opposite side of the end 130 from the second direction and is configured to receive a strike from the opposite direction of the second direction. The second striking portion 320 is provided on the end 130 in a third direction perpendicular to the second direction and is configured to receive a strike from the third direction.

[0012] The mud removal tool 1000 for replacing treads can efficiently remove mud and rust that has accumulated in the narrow gap 30 between the tread 10 and the ground 20 shown in Figure 2. The tread 10 is installed, for example, so as to be embedded in the ground 20, and is configured to sense pressure from above the tread 10 and detect a vehicle passing above the tread 10. For example, when a vehicle tire rests on the tread 10, the tread 10 senses the pressure from the tire placed above and detects that the vehicle tire has passed above.

[0013] When the tread 10 needs to be replaced due to deterioration over time, a tool for removing the tread 10 is inserted into the narrow gap 30 between the tread 10 and the ground 20 in order to remove the tread 10. At this time, mud and rust have accumulated between the tread 10 and the ground 20 due to years of use. Therefore, when replacing the tread 10, it is necessary to remove the mud and rust that has accumulated between the tread 10 and the ground 20.

[0014] As shown in Fig. 3, the worker inserts the blade 200 of the mud removal tool 1000 for replacing a tread board into the narrow gap 30 between the tread board 10 and the ground surface 20. At this time, the first striking surface 311 provided on the first striking portion 310 of the mud removal tool 1000 for replacing a tread board is struck in the fourth direction (second direction) with a striking object, such as a hammer. This allows the worker to insert the blade 200 into the narrow gap 30 between the tread board 10 and the ground surface 20 while pushing aside the adhering mud, rust, and the like.

[0015] Once the blade 200 is inserted into the isthmus 30, the worker moves the mud removal tool 1000 for replacing a tread board in the fifth direction (the opposite direction to the third direction) along the isthmus 30, as shown in Fig. 4. At this time, the second striking surface 321 provided on the second striking portion 320 of the mud removal tool 1000 for replacing a tread board is struck in the fifth direction with a striking object, such as a hammer. This allows the worker to move the blade 200 in the fifth direction along the isthmus 30 between the tread board 10 and the ground 20 while pushing aside the adhering mud, rust, and the like.

[0016] When the blade 200 reaches the end of the isthmus 30, the worker lifts the handle 100 of the mud removal tool 1000 for replacing treads in a sixth direction, as shown in Fig. 5, thereby rotating the blade 200 in a seventh direction around the fulcrum 360. This causes the blade 200 to remove mud, rust, etc. between the tread 10 and the ground 20 from the isthmus 30.

[0017] In this way, by using the mud removal tool 1000 for replacing a tread, the worker can efficiently remove mud, rust, and the like that have adhered to the narrow gap 30 between the tread 10 and the ground 20.

[0018] (Structure of mud removal tool for treadle replacement) The structure of the mud removal tool 1000 for replacing tread boards will now be described. As shown in Figure 3, the mud removal tool 1000 for replacing tread boards has a shape that is plane-symmetrical with respect to a plane of symmetry 400 that is parallel to the second direction and the third direction. As described above, the mud removal tool 1000 for replacing tread boards comprises the handle 100, the blade 200, and the striking part 300. For example, the handle 100, the blade 200, and the striking part 300 are formed from a material having high rigidity, such as metal.

[0019] As shown in FIG. 1 , handle 100 extends in a first direction and has, for example, a handle portion 110, a connecting portion 120, and an end portion 130, in that order from the opposite direction to the first direction. Handle portion 110 is formed so that an operator can easily grip it with his or her hand. For example, handle portion 110 may be formed in a cylindrical shape and have an insertion portion 111, which is a cylindrical hole, in the center. For example, a rod extending in the first direction is inserted into insertion portion 111. When an operator lifts handle portion 110 of handle 100 as shown in FIG. 6 to rotate blade 200, the operator may lift the rod inserted in handle portion 110, thereby rotating blade 200 with little force.

[0020] As shown in FIG. 1, end portion 130 is provided at the end of handle 100 in the first direction, and connects blade 200 and struck portion 300.

[0021] The connecting portion 120 is provided to connect the handle portion 110 and the end portion 130. As shown in FIG. 3, the connecting portion 120 and the end portion 130 are formed, for example, in a plate shape.

[0022] Here, to facilitate understanding of the mud removal tool 1000 for replacing treads, a Cartesian coordinate system will be used for explanation. Here, as shown in FIG. 1 , the second direction in which the blade 200 extends will be referred to as the X-axis. The third direction in which the second striking portion 320 is provided relative to the end 130 of the handle 100 will be referred to as the Y-axis. The direction perpendicular to the second and third directions will be referred to as the Z-axis. Furthermore, the second direction in which the blade 200 is provided relative to the end 130 of the handle 100 will be referred to as the +X-direction, and the opposite direction will be referred to as the -X-direction. The third direction in which the second striking portion 320 is provided relative to the handle portion 110 of the handle 100 will be referred to as the +Y-direction, and the opposite direction will be referred to as the -Y-direction. The first direction represents, for example, an in-plane direction included in the XY plane that includes the X-axis and the Y-axis.

[0023] For example, the connection portion 120 and the end portion 130 are formed in the shape of a plate extending in the XY plane.

[0024] The blade 200 is formed to extend in the +X direction from the end 130 of the handle 100 in the first direction. The blade 200 is formed so that the blade contour 210, which forms the end of the blade 200 in the -Y direction, is inclined in the -Y direction from the +X direction. For example, the +X direction and the direction in which the blade contour 210 extends intersect, forming an inclination angle 211 between the two directions. Therefore, the blade contour 210 is formed to move in the -Y direction as it moves in the +X direction. By inclining the blade contour 210 in the -Y direction from the X direction, as shown in FIG. 5, when the blade 200 rotates in the seventh direction, mud and rust in the narrow gap 30 between the tread 10 and the ground 20 can be easily scraped away. Furthermore, the tip 220 of the blade 200 may be configured to be located in the -Y direction from a straight line extending along the blade contour 210, as shown in FIG. 1. This also makes it easier for the worker to scrape out mud and rust from the narrow gap 30 between the tread 10 and the ground 20.

[0025] As shown in FIG. 1, the struck portion 300 has a first struck portion 310, a second struck portion 320, a stopper portion 330, a first folded portion 340, and a second folded portion 350. The first struck portion 310 has a first struck surface 311 at its end surface in the -X direction. The first struck surface 311 is configured to be able to receive a strike from an impact object from the -X direction. For example, at least a portion of the first struck surface 311 has a normal extending in the X-axis direction. The first struck surface 311 is formed, for example, in a planar shape. For example, the first struck portion 310 is formed in a plate shape.

[0026] As shown in FIG. 6 , the first struck surface 311 has widths in the Z direction and the X direction so as to be easily struck by a striking object. For example, the first struck surface 311 protrudes in the Z direction, e.g., in the +Z and −Z directions, from the Z-direction end of the blade 200. For example, the length of the first struck surface 311 in the Z direction is 20 mm or more. The length of the first struck surface 311 in the Z direction may be 30 mm or more. The length of the first struck surface 311 in the Z direction may be 40 mm or more. Similarly, the length of the first struck surface 311 in the X direction is 20 mm or more. The length of the first struck surface 311 in the X direction may be 30 mm or more. The length of the first struck surface 311 in the X direction may be 40 mm or more. The first struck surface 311 is formed in a rectangular shape when viewed, for example, from the −X direction.

[0027] A first folded portion 340 is formed at the -Y end of the first struck portion 310. As shown in Fig. 1, the first folded portion 340 is formed to extend in the +X direction from the first struck portion 310. The first folded portion 340 prevents the first struck portion 310 from being deformed by a strike applied to the first struck portion 310 in the +X direction.

[0028] The second struck portion 320 is provided at the end of the handle 100 in the first direction. The second struck portion 320 is formed at the end of the first struck portion 310 in the +Y direction, extending from the first struck portion 310 in the +X direction. The second struck portion 320 has a second struck surface 321 on its end face in the +Y direction. The second struck surface 321 is configured to be able to receive a strike from a striking object from the +Y direction. For example, at least a portion of the second struck surface 321 has a normal extending in the Y-axis direction. The second struck surface 321 is formed, for example, in a planar shape and is formed so as to be perpendicular to the first struck surface 311. For example, the second struck portion 320 is formed in a plate shape.

[0029] As shown in FIG. 3 , the second struck surface 321 has widths in the Z and Y directions so as to be easily struck by a striking object. For example, the second struck surface 321 protrudes in the Z direction, e.g., in the +Z and -Z directions, from the Z-direction end of the blade 200. For example, the length of the second struck surface 321 in the Z direction is 20 mm or more. The length of the second struck surface 321 in the Z direction may be 30 mm or more. The length of the second struck surface 321 in the Z direction may be 40 mm or more. Similarly, the length of the second struck surface 321 in the Y direction is 20 mm or more. The length of the second struck surface 321 in the Y direction may be 30 mm or more. The length of the second struck surface 321 in the Y direction may be 40 mm or more. The second struck surface 321 is formed in a rectangular shape when viewed, for example, from the +Y direction.

[0030] A stopper portion 330 is formed at the +X-direction end of the second struck portion 320. As shown in FIG. 1, the stopper portion 330 is formed to extend from the second struck portion 320 in the -Y direction. The stopper portion 330 protrudes in the Z direction, for example, in the +Z and -Z directions, from the Z-direction end of the blade 200, and has a stopper surface 331 on its end face in the +X direction. For example, the length of the stopper portion 330 in the Z direction is 20 mm or more. The length of the stopper portion 330 in the Z direction may also be 30 mm or more. The length of the stopper portion 330 in the Z direction may also be 40 mm or more.

[0031] The stopper portion 330 has a stopper surface 331 on its end surface in the +X direction. As shown in FIG. 4 , the stopper surface 331 is configured to come into contact with the ground 20 when the blade 200 is inserted into the isthmus 30 and reaches the bottom surface 31 of the isthmus 30. The stopper surface 331 coming into contact with the ground 20 prevents the tip 220 of the blade 200 from being distorted by a reaction force from the bottom surface 31 when the first struck surface 311 is struck. The stopper surface 331 may be configured to come into contact with the ground 20 before the blade 200 comes into contact with the bottom surface 31. For example, the stopper surface 331 is formed by a plane having a normal extending in the X direction. The stopper portion 330 is formed, for example, in a plate shape.

[0032] 7, for example, stopper surface 331 has widths in the Z direction and the Y direction. Stopper surface 331 is formed in a rectangular shape when viewed from the +X direction, for example. The end of stopper surface 331 in the -Y direction may form fulcrum 360 shown in FIG.

[0033] A second folded portion 350 is formed at the end of the stopper portion 330 in the -Y direction. As shown in Fig. 1, the second folded portion 350 is formed to extend in the -X direction from the stopper portion 330. The second folded portion 350 prevents the stopper portion 330 from deforming.

[0034] The struck portion 300 is formed, for example, by bending a single plate material. For example, one end of the single plate material forms a first folded portion 340, and the other end forms a second folded portion 350. Formed in this order from one end of the plate material are the first folded portion 340, the first struck portion 310, the second struck portion 320, the stopper portion 330, and the second folded portion 350. The plate material is bent 90 degrees at the boundaries between each portion to form the struck portion 300.

[0035] Each part of the struck portion 300 may be formed independently, in which case the first folded portion 340 and the second folded portion 350 may be omitted.

[0036] (Variation) The above-described embodiments and modifications are merely examples, and the configurations described in each embodiment and modification may be arbitrarily modified and / or combined as long as the functions are not impaired. Furthermore, some of the functions described in the embodiments and modifications may be omitted as long as the required functions can be realized.

[0037] For example, at least a portion of the handle 110 of the handle 100 may be formed of an elastic material. For example, the surface of the handle 110 may be covered with an elastic material. This reduces the transmission of vibrations caused by a strike applied to the struck portion 300 to the hand of the operator holding the handle 110.

[0038] Handle 110 may be formed in any shape as long as it is easy for the operator to grip. For example, the surface of handle 110 may be provided with projections and depressions according to the shape of the gripped hand. Furthermore, insertion portion 111 of handle 110 may be omitted.

[0039] The connecting portion 120 of the handle 100 may be omitted, and the handle portion 110 may extend to the end 130 where the struck portion 300 is provided. Furthermore, a reinforcing portion may be provided to increase the strength of the connecting portion 120 or the end 130. The reinforcing portion may be provided by any method to increase the strength of the connecting portion 120 or the end 130. For example, as shown in FIG. 8 , a plate-shaped reinforcing member 140 may be provided extending from the connecting portion 120 and the end 130 in the first direction and the Z direction. For example, the reinforcing member 140 may extend from the end of the handle portion 110 in the first direction to the second struck portion 320. The length of the reinforcing member 140 in the Z direction may be the same as the length of the struck portion 300 in the Z direction. Furthermore, the connecting portion 120 or the end 130 may have a step extending in the first direction as a reinforcing portion to increase its strength.

[0040] 1 may extend in the X direction. Furthermore, the tip 220 of the blade 200 may be provided on a straight line extending along the blade contour line 210. Furthermore, the tip 220 of the blade 200 may be configured to be located in the +Y direction from the straight line extending along the blade contour line 210.

[0041] The first struck surface 311 may be formed in any shape that can receive a strike from the -X direction. For example, the first struck surface 311 may be formed so that its center in the Z direction rises in the -X direction. In this case, for example, the first struck portion 310 may be formed in a semi-cylindrical shape. Furthermore, the first struck surface 311 may be formed so that its center in the Y direction rises in the -X direction.

[0042] Similarly, the second struck surface 321 may be formed in any shape that can receive a strike from the Y direction. For example, the second struck surface 321 may be formed so that its center in the Z direction rises in the +Y direction. In this case, for example, the second struck portion 320 may be formed in a semi-cylindrical shape. Furthermore, the second struck surface 321 may be formed so that its center in the X direction rises in the +Y direction.

[0043] The shape of the first struck surface 311 when viewed from the -X direction may also be formed into any shape. For example, the first struck surface 311 may be formed so as to be circular when viewed from the -X direction. The shape of the second struck surface 321 when viewed from the Y direction may also be formed into any shape.

[0044] In order to increase the strength of the first struck portion 310, a reinforcing portion may be provided on the first struck portion 310. For example, the reinforcing portion is formed in the shape of a plate extending from the first struck portion 310 in the +X direction, for example, in the ZX plane. For example, the reinforcing portion may be provided at any position on the first struck portion 310 in the Y direction, for example, at the center. Alternatively, the reinforcing portion may be formed as a step extending in the Y or Z direction of the first struck portion 310.

[0045] Similarly, a reinforcing portion for increasing strength may be provided in the second struck portion 320. For example, the reinforcing portion is formed in the shape of a plate extending from the second struck portion 320 in the +Y direction, for example, in the YZ plane. For example, the reinforcing portion may be provided at any position on the second struck portion 320 in the X direction, for example, at the center. Alternatively, the reinforcing portion may be formed as a step extending in the Z or X direction of the second struck portion 320.

[0046] Furthermore, the struck portion 300 may be formed in any shape. For example, the struck portion 300 may be formed in the shape of a rectangular parallelepiped. In this case, the first struck surface 311, the second struck surface 321, and the stopper surface 331 are formed by the surfaces of the rectangular parallelepiped.

[0047] The stopper portion 330 may be formed in any shape that restricts the insertion of the blade 200 into the isthmus 30 so that the blade 200 is not distorted by a reaction force from the bottom surface 31 of the isthmus 30. For example, the stopper portion 330 may have any shape that allows the stopper surface 331 to contact the ground 20 when the tip 220 of the blade 200 reaches the bottom surface 31 of the isthmus 30. For example, the stopper portion 330 may be formed in a columnar shape extending in the Z direction, such as a cylindrical shape. Alternatively, the stopper portion 330 may be formed so that multiple columns extending in the Z direction are lined up in the Y direction.

[0048] The stopper portion 330 may be formed by the end of the second struck portion 320 in the X direction, or may be omitted.

[0049] Furthermore, the first direction does not have to represent an in-plane direction of the XY plane. For example, the first direction may intersect with the XY plane at an angle of 45 degrees or less. Furthermore, the handle 100 may be formed so that the center of the handle portion 110, such as the center of gravity or geometric center, and the center of the end portion 130, such as the center of gravity or geometric center, are at different positions in the Z direction. In this case, the end portion 130 may be formed in a plate shape extending in the XY plane, and the extension direction of the handle portion 110 may represent an in-plane direction of the XY plane. In this case, for example, the connecting portion 120 may have a step that moves in the Z direction as it moves in the first direction.

[0050] Furthermore, the mud removal tool 1000 for replacing a tread board does not have to have a shape that is plane-symmetrical with respect to the plane of symmetry 400 shown in Figure 3. For example, the stopper portion 330 may be provided only on the -Z direction or the +Z direction of the end portion 130. [Explanation of symbols]

[0051] 10:Treadboard 20: Ground 30: Isthmus 31: Bottom 100: Pattern 110: Handle 111: Insertion section 120: Connection part 130: End 140: Reinforcement material 200: Blade 210:Blade outline 211: Inclination angle 220: Tip 300: Hit part 310: 1st hit part 311: 1st hit surface 320: 2nd hit part 321: 2nd hit surface 330: Stopper part 331: Stopper surface 340: First fold 350: Second fold 360:Fulcrum 400: Symmetry plane 1000: Mud removal tool for tread replacement

Claims

1. a handle extending in a first direction; a blade connected to an end of the handle in the first direction and extending from the end in a second direction different from the first direction; a first striking surface provided on the end of the handle in the first direction, in a direction opposite to the second direction, and struck from the direction opposite to the second direction; a second striking surface provided at an end of the handle in the first direction, provided in a third direction perpendicular to the second direction, and struck from the third direction; A mud removal tool for replacing treads.

2. The second striking surface is perpendicular to the first striking surface. The mud removal tool for replacing a tread according to claim 1.

3. the blade has a blade contour that forms an end in a direction opposite to the third direction; The direction in which the blade contour line extends is inclined in a direction opposite to the third direction from the second direction. The mud removal tool for replacing a tread according to claim 1 or 2.

4. a stopper portion provided at the end of the handle in the first direction and protruding from the blade in a direction perpendicular to the second direction and the third direction; The mud removal tool for replacing a tread board according to claim 1 or 2 further comprises:

5. The first direction is represents an in-plane direction of a plane including the second direction and the third direction, tilted in the second direction more than in the third direction The mud removal tool for replacing a tread according to claim 1 or 2.

6. the end of the handle in the first direction is formed in a plate shape extending in the second direction and the third direction, a reinforcing portion extending from the end portion in a direction perpendicular to the second direction and the third direction; The mud removal tool for replacing a tread board according to claim 5 further comprises:

Images