JP2587838Y2 - Concrete cutter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete cutter, and more particularly to a concrete cutter which can perform not only a straight cut but also a meandering cut accurately and easily.

[0002]

2. Description of the Related Art A concrete cutter for cutting concrete pavement is an important equipment which is indispensable for construction and civil engineering work. A cutter blade mounted on a trolley which can be moved up and down by mounting an engine on a trolley having wheels. Was rotated by the engine to form a groove in the concrete surface, and cutting was performed.

[0003]

[Problems to be Solved by the Invention] However, in the conventional concrete cutter, an employee is located behind the truck (rear side in the traveling direction), and cuts the concrete surface while pushing the truck forward with mechanical power or human power. It is difficult to hold the cutting line because it was to be cut, it is difficult to cut while meandering to the left and right, aside from straight cutting,
The current situation is that we always struggle with curved cutting. The purpose of the present invention is to solve the above-mentioned problems relating to the cutting of the concrete surface, and to provide a convenient concrete cutter that can perform not only a straight cutting but also a cutting meandering right and left easily and easily. It is something you want to do.

[0004]

SUMMARY OF THE INVENTION The present invention provides an engine mounted on a three-wheel-supporting movable carriage 3 having a single caster-type small wheel 1 in the forward direction and a pair of large-diameter wheels 2 and 2 on both rear sides. 4, and a cutter blade 5 is vertically suspended from the movable carriage 3 via a rotational force transmitting means 6 so that the cutter blade 5 rotates in the same direction as the traveling direction of the carriage 3. To transmit the rotational force from the engine 4 and to attach a tow pattern 7 to the front of the bogie 3 so that an operator can perform a cutting operation while pulling the tow pattern 7 from the front. Thus, the above problem is to be solved.

[0005]

The worker is located in front of the bogie 3 and performs the cutting operation while holding the towing handle 7 and pulling the bogie 3 forward by human power. Is attached, the bogie 3 can be easily turned in a desired direction by swinging the towing handle 7 to the left and right, and cutting while meandering to the left and right is possible. Cutting work can be easily performed.

[0006]

FIG. 1 is a side view of an embodiment of a concrete cutter according to the present invention, and FIG. 2 is a rear view of the cutter, partially omitted. In the drawing, reference numeral 3 denotes a three-wheel support type movable cart,
A single caster-type small wheel 1 is provided at the front, and large-diameter wheels 2 and 2 are provided at both rear sides, and the caster-type small wheel 1 is oriented in any direction by 360 ° with its support shaft 14 as an axis. You can do it. An engine 4 is mounted on the movable trolley 3.

Reference numeral 5 denotes a disk-shaped cutter blade which is pivotally supported in the same direction as the large-diameter wheels 2, that is, at right angles to the traveling direction. In addition, it can be moved up and down by the elevating mechanism 15 so that it can be lifted up during movement or standby for startup, and can be lowered down during cutting work. In the figure, reference numeral 16 denotes an operation lever for operating the elevating mechanism 15. The lifting mechanism 15 itself is also provided in the conventional concrete cutter, and the structure of the embodiment of the present invention is exactly the same as that of the conventional concrete cutter.

The rotational force is transmitted from the engine 4 to the cutter blade 5 by the rotational force transmitting means 6 so as to rotate in the same direction as the traveling direction of the carriage 3 (arrow A), that is, clockwise in FIG. It has become.

On the other hand, a bar-shaped towing pattern 7 is attached to the front of the bogie 3 so as to face obliquely upward, and a grip portion 8 is provided at the tip thereof. In the drawing, 9 is a cover for covering the upper part of the cutter blade 5 to prevent scattering of concrete fragments generated during cutting work, 10 is a throttle lever for adjusting the output of the engine, 11 is a battery, 1
2 is a concrete surface.

Next, the use of this embodiment will be described.
This concrete cutter 12 is opposite to the conventional device, and an operator 13 is located in front, and performs a cutting operation while pulling the device, and the operator 13 removes the grip portion 8 at the tip of the towing handle 7. The cutter blade 5 rotated by the engine 4 in the same direction as the advancing direction is pressed against the concrete surface 12 at the cutting start point, and the trajectory of the caster-type small wheel 1 and the planned cutting line displayed on the concrete surface 12 in advance. If the tow pattern 7 is pulled slowly while swinging the traction pattern 7 to the right and left appropriately so as to match, the cutting along the planned cutting line can be easily and accurately performed.

[0011]

[Effect of the Invention] The concrete cutter according to the present invention cuts while pulling in the opposite direction of the conventional concrete cutter, so that it has an excellent effect that it is easy to follow the scheduled cutting line and that the meandering cutting can be easily and accurately performed. Extremely practical.

[0012]

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a concrete cutter according to the present invention.

FIG. 2 is a back view of the concrete cutter according to the present invention, with a part of the concrete cutter omitted.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 caster-type small wheel 2 large-diameter wheel 3 moving carriage 4 engine 5 cutter blade 6 rotational force transmitting means 7 towing pattern 8 gripping part 9 cover 10 throttle lever 11 battery 12 concrete surface 13 worker 14 support shaft 15 lifting mechanism 16 operation lever

Claims (1)

(57) [Scope of request for utility model registration] An engine 4 is mounted on a three-wheel-supporting movable carriage 3 having a single caster-type small wheel 1 in the forward direction and a pair of large-diameter wheels 2 and 2 on both rear sides. A cutter blade 5 is vertically suspended from the carriage 3 so that the cutter blade 5 can rotate in the same direction as the carriage 3 in the same direction as the carriage 3 to transmit torque from the engine 4 through the torque transmitting means 6. A concrete cutter characterized in that transmission is possible and a towing pattern 7 is attached to the front of the bogie 3 so that an operator can perform a cutting operation while pulling the towing pattern 7 from the front.