JPH05163707A - Cutting remover - Google Patents

Abstract

PURPOSE:To cut and remove a marking line or display tape with a specified depth with a high accuracy even when the road surface is uneven. CONSTITUTION:A working machine-elevating rail 20 is provided to one side 11a of the bear vehicular body 11 to enable a working machine elevator 21 to vertically move along the rail 20 by an elevating cylinder 23. A rotor case 27 is attached to the elevator 21 in a vertically and downwardly rocking manner by permitting the cylinder 23 to be expanded or contracted freely by external forces. A traverse floating mechanism 29 is provided between the rotor case 27 and the elevator 21 and a front caster mechanism 44 to vertically move a caster 42 is attached to the elevator 21. Also, a rear caster mechanism 50 to vertically move a caster 48 is attached to the rotor case 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting and removing device for easily and accurately cutting and removing display lines and display tapes installed on roads and floors.

[0002]

2. Description of the Related Art Display lines and display tapes conventionally installed on roads and floors are removed as follows. (1) Burn the display line and the display tape with a gas burner to remove them. (2) Apply paint of the same color as the surroundings to the display line and the display tape. (3) Remove the powered chiseling machine that cannot run the indicator wire and indicator tape manually by pulling it out manually.

[0003]

Therefore, the work is difficult and time consuming. In addition, there are problems such as damage to the road surface and floor surface after the removal, occurrence of roughness, and unsightly appearance.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a cutting and removing apparatus which enables easy and accurate cutting and removing work of the display line and the display tape.

[0005]

A working machine lifting body 21 is movably supported on a movable vehicle body 13, and a rotor case 27 is rocked vertically and downward on the working machine lifting body 21. The rotor case 27 is provided with a cutter drum 16 and a rotary drive source, and the working machine elevating body 21 and an elevating cylinder 23 that freely expands and contracts by an external force are connected between the working machine elevating body 21 and the vehicle body 13 to elevate the working machine. A transverse float mechanism 29 supporting the rotor case 27 is connected between the body 21 and the rotor case 27, a vertically movable front caster mechanism 44 is attached to the working machine lifting body 21, and the rotor case 27 is vertically moved. A cutting removal device with a free rear caster mechanism 50 attached.

[0006]

[Operation] The display line and the display tape can be cut and removed by the cutter drum 16 by rotating the cutter drum 16 while the vehicle body 13 is running. Not only moves up and down in accordance with the unevenness in the running direction of the vehicle, but also the rear caster mechanism 50 causes the rotor case 27 to swing up and down in accordance with the unevenness in the direction perpendicular to the running direction of the road surface. The cutter drum 16 can accurately cut to a predetermined depth.

[0007]

[Example] As shown in FIG. 1, a front vehicle body 10 and a rear vehicle body 11 are swingably connected with a vertical axis 12 to form a vehicle body 13, and the front vehicle body 10 serves as a driving wheel and a steering wheel. A pair of left and right front wheels 14, 14 are provided, and a pair of left and right rear wheels 15, 15 that are traveling wheels and a cutter drum 16 are provided on the rear vehicle body 11 so that the cutter drum 16 has substantially the same axis line.
Is on one side of the rear vehicle body 11, the other rear wheel 15 is in the middle, and the cutter drum 16 is provided on the other side.

As shown in FIGS. 2 to 5, a pair of front and rear working machine lifting rails 20, 20 are vertically mounted on one side surface 11a of the rear vehicle body 11 near the front part. Along with 20 working machine lifting body 21
The vertical plate 22 of is supported by the lifting cylinder 23 so as to be able to move up and down,
A cylinder 25 is attached to a lower portion between a pair of front and rear support ribs 24 provided on the vertical plate 22 of the working machine lifting body 21, and a support shaft 26 is rotatably supported in the cylinder 25 in the front-rear direction. At the rear end of the support shaft 26, one end of the rotor case 27 in the left-right direction is attached, and a cylinder or accumulator having a spring is provided between the rotor case 27 and the bracket 28 of the vertical plate 22. A transverse float mechanism 29 such as a hydraulic cylinder is connected. The cutter drum 16 is mounted on the outer peripheral surface of the drum 30 with a mounting body 31.
Are fixed at substantially equal intervals in the circumferential direction and sequentially displaced in the axial direction, and cutting blades 33 having a straight cutting surface 32 are attached to their respective attachment bodies 31 by bolts 34, respectively. A partition wall 35 is fixed to the peripheral surface as shown in FIG. 6, a drive wheel 36 connected to the partition wall 35 is rotatably supported by a drive case 37, and is connected to an output side of a motor 39 via a transmission mechanism 38. The cutter drum 16 is rotated by driving the motor 39.
A nut member 40 is provided near the front of the work machine mounting body 21, and casters 42 are attached to the lower portions of the vertical screw rods 41 screwed to the nut member 40, respectively. A handle 43 is attached to the front caster mechanism 44. A lower portion 41a of the vertical screw rod 41 is rotatably supported by a support piece 40a by a bush. A mounting vertical plate 45 is attached to the rear portion of the rotor case 27, and vertical screw rods 47 are respectively screwed into nut members 46, 46 provided on the left and right of the mounting vertical plate 45. Casters 48 are attached to the lower part of the
Are attached, which constitutes the rear caster mechanism 50. A lower portion 47a of the vertical screw rod 47 is rotatably supported by a support piece 46a by a bush. A hanging chain 52 can be attached to and detached from the hook 50 of the working machine lifting body 21 and the hook 51 of the rotor case 27, and the hanging case 52 is attached to the hook 50 and the hook 51 when the vehicle is self-propelled to lift and support the rotor case 27. You can
When cutting, remove the suspension chain 52 and remove the rotor case 27.
Can be swung downward.

Next, the cutting and removing operation of the display line and the display tape will be described. After the working machine lifting body 21 is lowered by the lifting cylinder 23, the lifting cylinder 23 is freely expanded and contracted by an external force, the hanging chain 52 is removed, and the rotor case 27 is balanced by the transverse float mechanism 29 to cut the cutting blade. Press 33 against the cut surface. Front and rear handles 43,
The front and rear vertical screw rods 41, 47 are rotated by 49 to move the front and rear casters 42, 48 up and down to adjust the height, thereby adjusting the cutting depth. In order to freely expand and contract the elevating cylinder 23 by an external force, an operation valve for supplying pressure oil to the elongating chamber and the reducing chamber of the elevating cylinder 23 is connected to the elongating chamber and the reducing chamber by connecting them to a hydraulic pump and a tank. It should be a floating position that communicates with. The motor 39 is driven to rotate the drum 30, and at the same time, the vehicle travels and cuts with the cutting blade 33. The working machine lifting body 21 moves up and down via the front casters 42 following the unevenness in the traveling direction of the road surface, and follows the unevenness in the direction perpendicular to the running direction of the road surface and through the casters 48 in the rear portion to the rotor case. Since 27 swings to the left and right, the cutting blade 33 can always cut with a high precision to a predetermined depth.

[0010]

The display line and the display tape can be cut and removed by the cutter drum 16 by rotating the cutter drum 16 while the vehicle body 13 is running, and the front caster mechanism 44 allows the working machine elevating body 21 to move. Not only does it follow the unevenness of the road surface in the running direction, but also the rear caster mechanism 50 causes the rotor case 27 to swing up and down following the unevenness in the direction perpendicular to the running direction of the road surface. Also, the cutter drum 16 can accurately cut to a predetermined depth.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a cutting and removing apparatus.

FIG. 2 is a front view of a cutter drum mounting portion.

FIG. 3 is a plan view of a cutter drum mounting portion.

FIG. 4 is a front view of a cutter drum mounting portion.

FIG. 5 is a rear view of the cutter drum mounting portion.

FIG. 6 is a sectional view of a cutter drum drive unit.

[Explanation of symbols]

13 ... Car body, 16 ... Cutter drum, 21 ... Working machine lifting body, 23 ... Lifting cylinder, 27 ... Rotor case, 29 ...
Transverse direction, float mechanism, 30 drums, 33 ... Cutting blade,
44 ... Front caster mechanism, 50 ... Rear caster mechanism.

Front page continuation (72) Inventor Masaaki Sakamoto 1-3 Takaracho, Kashiwazaki, Niigata Komatsu Est Head Office Factory (72) Inventor Eiki Nitta 1-3 Takaracho, Kashiwazaki, Niigata Komatsu Est Head Office Factory (72) Inventor Osamu Iwakata 1-3 Takara-cho, Kashiwazaki-shi, Niigata Komatsu Est Head Office Factory

Claims (1)

[Claims] 1. A work implement lifter 21 for a movable vehicle body 13.
Is supported so as to be able to move up and down, and a rotor case 27 is supported on the working machine lifting body 21 so as to swing vertically and downward, and the cutter drum 16 and a rotary drive source are provided on the rotor case 27 to perform the above-mentioned work. A transverse float mechanism 29 that connects the machine lifting body 21 and the vehicle body 13 to a lifting cylinder 23 that freely expands and contracts by external force and external force, and supports the rotor case 27 between the working machine lifting body 21 and the rotor case 27. And a rear caster mechanism 50 that is vertically movable is attached to the working machine lifting body 21, and a rear caster mechanism 50 that is vertically movable is attached to the rotor case 27.