JP3052653U - Concrete cutter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An L-shaped gutter concrete provided on both sides of a paved road can be cut to a required length by a single cutting operation, and can be provided under a guardrail without removing the guardrail. The present invention provides a concrete cutter that can cut a pavement surface and the L-shaped side groove by using the same, and can also be used for cutting a normal pavement road cutter or concrete. SOLUTION: A cooling portion is provided at a rear portion of a frame, a rear wheel 1 is mounted at a lower portion, an engine 2 is mounted at an upper portion, and water is passed when the rotary blade 3 is driven to cool the rotary blade 3. An L-shaped concrete side groove block A to be cut at the front side of the frame F equipped with the water tank 4
The length of the frame is appropriately extended according to
At the front end of Fa, a rotary blade 3 for cutting concrete having a large diameter capable of cutting the side groove block A is attached, and the rotary blade 3 is driven by the engine 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention not only cuts an L-shaped gutter concrete block (hereinafter referred to as an L-shaped gutter) disposed on a side portion of a pavement road, etc., but also cuts or cuts a normal pavement road cutter or the like. The present invention relates to a concrete cutter which can also be used for cutting concrete.

[0002]

[Prior art]

 Generally, on a paved road, L-shaped gutters are provided on both sides to form a groove, and water collected in the groove from a road or the like is passed through a water collecting basin provided at appropriate intervals. It is designed to drain down the drain.

[0003] Thus, the above-mentioned L-shaped gutter is usually of a fixed length, and when deployed in the longitudinal direction of the road, the most advanced gutter is not necessary to match this to the road. Parts must be cut off. Conventionally, a conventional hand-held type concrete cutter was used to cut from the front and back. However, since the above-mentioned L-shaped side groove is heavy, the work of turning it over is not a heavy burden for the operator. Did not get.

Although it is conceivable to use a large cutter, it is difficult to perform a cutting operation because the side groove is L-shaped, and it is almost impossible to perform a satisfactory cutting operation. .

[0005]

[Problems to be solved by the invention]

 In view of the above-mentioned prior art, the present invention can cut the L-shaped gutter concrete provided on both sides of a pavement road to a required length by one cutting operation, and without removing a guard rail. It is also possible to provide a concrete cutter which can cut a pavement surface and the L-shaped gutter under the guardrail and can be used for cutting a normal pavement road and a concrete. , The subject.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the construction of the concrete cutter of the present invention is to provide a handle at the rear of the frame, mount the rear wheel at the bottom, mount the engine at the top, and drive the rotary blade. The front side of the frame provided with a cooling water tank for cooling the rotary blade by passing water sometimes is formed to have an appropriate length so as to correspond to the L-shaped concrete side groove block to be cut. A rotary blade for cutting concrete having a large diameter capable of coping with the cutting of the side groove block is attached to a tip end side of the frame extension portion, and the rotary blade is driven by the engine. That is.

Thus, in the cutter of the present invention, it is desirable that the engine for driving the rotary blade for cutting has a deceleration / enhancement function, and that the rotary blade uses a diamond cutter. Is desirable.

[0008]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the concrete cutter according to the present invention, FIG. 2 is a sectional view of an L-shaped groove concrete to be cut, and FIG. 3 is an L-shaped groove concrete using the cutter of the present invention. FIG. 4 is a cross-sectional view of a state where the gate is cut.

In the figure, F is a frame provided with a handle portion H for manual pushing at the rear, a rear wheel 1 mounted at a lower portion, and an engine 2 for driving a rotary blade described later mounted at an upper portion. An extension Fa corresponding to the size of the L-shaped side groove A to be cut is provided at the front portion of the frame F, and a large-diameter concrete cutting is provided at the tip end of the extension Fa. Is mounted. Reference numeral 4 denotes a cooling water tank mounted on the extension Fa of the frame F, and reference numeral 5 denotes a water guide pipe for conducting water for cooling the rotary blade 3 from the water tank 4 when the rotary blade 3 is driven.

Here, the length of the extension Fa of the frame F is such that when cutting the pavement surface under the guardrail or the L-shaped groove A laid on the road, the guardrail is provided on the road. However, it is desirable that the cutting blade 3 has a length that allows the cutting blade 3 to enter the lower part of the guard rail and cut the side groove A without removing the guard rail. As described above, it is preferable that the engine 2 be provided with a deceleration / enhancement mechanism, and that the rotary blade 3 be a diamond cutter.

The concrete cutter according to the present invention configured as described above is carried into the work place with the handle H being held by the hand, the rotary blade 3 being floated on the road, and the L-shaped side groove A being cut. The rotary blade 3 is arranged on the side groove A, the engine 2 is operated as it is to drive the rotary blade 3, and the cooling water is supplied from the water tank 4 via the water pipe 5 from above the rotary blade 3. For example, cutting can be performed once with the L-shaped side groove A shown in FIG. 2 being laid. Therefore, the work of turning the L-shaped side groove A upside down and cutting as in the related art is unnecessary.

[0012] The concrete cutter of the present invention can be used not only for cutting the L-shaped groove A described above but also as a normal concrete cutter. In addition, since the rotary blade 3 projects forward from the frame F via the extension frame Fa, even the pavement surface or the L-shaped side groove A located under the guardrail can be cut without removing the guardrail. It is. It should be noted that, if rotary blades having different diameters are prepared in advance and replaced as needed, the working efficiency can be significantly improved.

[0013]

[Effect of the invention]

 The present invention is as described above. The front side of the frame of the concrete cutter is formed to have an appropriate length to correspond to the L-shaped concrete side groove block to be cut, and the frame is extended. A rotary blade for concrete cutting having a large diameter capable of coping with the cutting of the side groove block is attached to the distal end side of the portion, and the rotary blade is driven by an engine mounted on the frame. The cutting of the L-type concrete-side groove block, which has conventionally been difficult to cut from either the front or back surface, can be performed by one cutting operation from either the front or back surface.

Further, even when cutting the pavement surface on which the guardrail is installed or the L-shaped concrete-side groove block at such a location, the cutting blade is provided at the end of the extension portion. Even if the guardrail is kept, the guardrail does not interfere with the cutter body side of the water tank or the like, so that the pavement surface or the block can be cut without removing the guardrail. Of course, the concrete cutter of the present invention can also be used as a normal concrete cutter, and is extremely useful for cutting concrete gutters on paved roads.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a concrete cutter of the present invention.

FIG. 2 is a sectional view of an L-shaped side groove concrete to be cut.

FIG. 3 is a side view showing a state in which the L-shaped side groove concrete is cut using the cutter according to the present invention;

[Explanation of symbols]

 F frame extension part of frame Fa frame H handle part 1 rear wheel 2 engine 3 rotary blade 4 water tank 5 water guide gutter

Claims (4)

[Utility model registration claims] 1. A handle portion is provided on a rear portion of a frame, a rear wheel is mounted on a lower portion, an engine is mounted on an upper portion, and
The front side of the frame equipped with a cooling water tank for cooling the rotary blade by driving water when the rotary blade is driven has an appropriate length corresponding to the L-shaped concrete side groove block to be cut. A rotary blade for cutting a concrete having a large diameter capable of coping with the cutting of the side groove block is attached to the tip side of the frame extension, and the rotary blade is driven by the engine. A concrete cutter characterized by the following. 2. An extension of a frame, when cutting a pavement surface near a guardrail or an L-shaped gutter laid there, enables the pavement surface or the gutter to be cut without removing the guardrail. Claim 1 formed in a length
Concrete cutter described in 1. 3. The concrete cutter according to claim 1, wherein the engine has a deceleration / enhancement function. 4. The concrete cutter according to claim 1, wherein the rotary blade is a diamond cutter.