JP4030811B2 - Road surface cutting machine for building pillars - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building pillar road surface cutting machine capable of cutting a road surface into a circular shape, and more specifically, by rotating the airframe around a rotation support portion provided at a substantially central portion of the airframe, The present invention relates to a building column road surface cutting machine capable of cutting into a circular shape having a relatively small diameter.
[0002]
[Prior art]
Conventionally, as shown in FIG. 4, as a road surface cutting machine for cutting this type of road surface into a circular shape, a base c having a front wheel a and a rear wheel b at the lower part is connected to one end of the base c by a hinge d. Frame e, a circular arc-shaped rotating body f provided at the other end of the frame e, and an axle of a front wheel a that pivots and tilts the frame e to move the circular arc-shaped rotating body f up and down. The tilting rotation means g and an anchor h provided on the hinge d side of one side end of the base c are provided, and the base c is rotated around the anchor h provided on one side end of the base c. By doing so, it is known that the road surface is cut into a circular shape with a circular arc-shaped rotating body f provided at the other end of the frame e where the other end of the base c is a trap (Japanese Patent Laid-Open No. 2001). No. -295216).
[0003]
[Problems to be solved by the invention]
However, in the conventional road surface cutting machine, the anchor h, which is the center of rotation of the base c, is provided at one end of the base c, whereas the arcuate rotating body f has a cross section of the base c. Since it is provided at the other end of the frame e that is the other end, the distance between the anchor h that is the center of rotation of the base c and the cross-section arcuate rotating body f is wide via the width of the base c. In other words, the circular shape that cuts the road surface with the circular-arc-shaped rotating body f has a large diameter, and cannot be cut into a relatively small circular shape for a building pillar. Therefore, a large load is applied to the anchor h, and the rotation support of the base c by the anchor h becomes unstable.
[0004]
In addition, the circular-arc-shaped rotating body f is provided at the other end portion of the frame e connected to one end portion of the base c by a hinge d, and the frame e is tilted provided on the axle of the front wheel a. Since the rotating body f is rotated and inclined by the rotating means g, the circular section-shaped rotating body f rotates and tilts the frame e supported by the hinge d and the tiltable rotating means g provided on the axle of the front wheel a. As a result, the cross-section arcuate rotating body f easily swings around the hinge d when the road surface is cut, and the road surface cutting by the cross-section arcuate rotating body f is unstable. There was an inconvenience.
[0005]
The present invention solves the above-described problems in the prior art, and the road surface is cut into a relatively small-diameter circular shape by rotating the airframe around a rotation support portion provided at a substantially central portion of the airframe. An object of the present invention is to provide a road surface cutting machine for building pillars.
[0006]
[Means for Solving the Problems]
To achieve the above object, the present invention is, bearing of the rotation support portion provided at a substantially central portion of the body formed in a frame of substantially square to the fixed base of the support shaft fixed to a road surface according to claim 1 and rotating means for rotating said body about said rotary support unit by being mounted on the machine body, and a cutting means you cut the road surface in a circular shape by the rotation of the machine body, the pivot The means is attached to the vicinity of the one side frame in the front frame of the airframe and has a hand handle inclined to the rear side of the airframe, and the cutting means includes an elevating device mounted on the one side frame. A rotary blade that is lifted and lowered by the lifting device, the lifting device has a plate shape, and a convex surface is located outward with respect to the machine body. And so that the lower half of the longitudinal cross-sectional shape is substantially vertical A it shall be attached to the inclined mount.
[0007]
According to the invention of claim 1, moves the airframe Press hand wheel, lowering the rotary blade although to cut by the rotary blade of the road surface, the rotation support provided on the substantially central portion of the body Since the part is supported by a fixed base that is fixed to the road surface, in the construction work that cuts the road surface, the rotational support part of the airframe is fixed to the road surface by a fixed base having a support shaft that supports the rotational support part of the airframe. Since the aircraft can be rotated around the rotation support portion, the road surface can be cut into a circular shape, and the rotation support portion is provided at the substantially central portion of the aircraft, Since the distance between the rotation support portion and the cutting blade can be reduced, the road surface can be cut into a relatively small-diameter circular shape, and the aircraft rotates around the rotation support portion at the substantially central portion. Stable rotation support of the aircraft It can be.
[0008]
Moreover, times Utateha, together are disposed outside of the lifting device main body of the onboard lifting device on one side frame of the machine body, it is formed on the inclined surface mounting surface inclined downward outward, the lifting device because it is mounted et the inclined mount for the lifting is guided in the body can be firmly supported on the one side frame on the side of the aircraft rotating blade of the rotary blade is disposed, moreover, the rotation of the body Combined with the support part being positioned at the substantially central part of the fuselage, the movement locus circle of the rotary blade arranged on the side frame of the fuselage can be made relatively small in diameter, and the movement of the rotary blade The trajectory circle can be set to approximately the same extent as the movement trajectory circle of the outer part of the fuselage, so even in places where there are obstacles such as curbs, the road surface approaching the obstacle can be made relatively without disturbing the aircraft. It can be cut into a circular shape with a small diameter.
Further, the rotary blade formed in a dish shape is attached so that the convex surface is located outward with respect to the airframe and the lower half of the longitudinal cross-sectional shape is substantially vertical. The road surface can be cut in a substantially vertical shape, and the rotary blade receives sliding contact resistance due to the convex surface formed in the shape of a dish. The sliding contact resistance of the rotary blade rotates the machine body to the side opposite to the convex surface of the rotary blade. The road surface can be cut into an arc shape while moving in a moving direction.
[0009]
The invention according to claim 2, in the invention described in claim 1, in the longitudinal direction of the installation has been reinforced frame at a substantially central portion of the machine body, the rotation support part is fixed slidably that the long hole is shall have been drilled.
[0010]
According to the second aspect of the present invention, the rotation support portion provided on the airframe is slidably fixed to a long hole drilled along the longitudinal direction of the reinforcing frame provided in the substantially central portion of the airframe. Therefore, the airframe is reinforced by the reinforcing frame, and the rotary blade can be firmly supported by the rotation support portion. Therefore, the road surface can be stably cut by the rotary blade, and the rotation support of the airframe is also provided. Since the distance between the rotary support part and the cutting blade can be reduced or expanded by displacing the part with respect to the rotary blade, the road surface is made into a circular shape with a different diameter according to the diameter of the pillar to be built. Can be cut.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the present invention, a rotating support portion provided at a substantially central portion of the airframe is supported on a support shaft of a fixed base fixed to a road surface. A building column road surface cutting machine comprising: a rotating means for rotating around a fixed base; and a cutting means for cutting the road surface while rotating the machine body around the fixed base by the rotating means. A road surface cutting machine for pillars cuts the road surface into a relatively small-diameter circular shape to perform building pillar work, and FIG. 1 is a rear view showing a part of the road surface cutting machine for building pillars in a longitudinal section. FIG. 2 is a plan view of the building pole road cutting machine, and FIG. 3 is a side view of the building pole road cutting machine.
[0012]
First, the rotation means for rotating the machine body of the building pillar road surface cutting machine around the fixed base will be described with reference to FIGS. 1 is a machine body of a road cutting machine for building pillars, and the machine body 1 is formed in a substantially rectangular frame, and one side frame forms a machine body main body 11 and the other side facing from a substantially central portion of the machine body main body 11. Reinforcing frames 12 are installed over substantially the center of the frame, and casters 13 are disposed at the bottom of the four corners of the machine body 1. A hand handle 14 is attached to the front frame of the body 1 in the vicinity of the body 11, and the hand handle 14 is inclined toward the rear side of the body 1. A pedal 15 is fixed in the vicinity of the body body 11.
[0013]
A long hole 16 is formed in the upper surface of the substantially central portion of the reinforcing frame 12 along the longitudinal direction of the reinforcing frame 12, and a bearing 17 that is a rotation support portion of the airframe 1 is provided in the long hole 16. By being slidably fixed, the position of the bearing 17 is displaced with respect to the rotary blade 3 which will be described later, and the support shaft is established at the center of the fixed base 18 formed in a cross shape on the bearing 17. 19 is inserted, and the body 1 is rotated around a bearing 17 supported by a support shaft 19 of a fixed base 18. The displacement of the bearing 17 relative to the rotary blade 3 has been described as being due to the long hole 16 drilled along the longitudinal direction of the reinforcing frame 12 and the bearing 17 slidably fixed to the long hole 16. The displacement of the bearing 17 with respect to the rotary blade 3 may be achieved by arranging a plurality of bearings in the longitudinal direction of the reinforcing frame 12 and fitting the support shaft 19 of the fixed base 18 into any of the bearings. Reference numeral 18 'denotes a fixing nail for fixing the fixing base 18 to the road surface.
[0014]
The pivoting means for pivoting the machine body 1 of the road surface cutting machine for building pillars around the fixed base 18 is configured as described above, and the operator operates the machine body 1 from the rear side of the machine body 1 with the hand handle 14. The pedal 15 can be pushed with the foot while the body 1 can be rotated by the caster 13 around the bearing 17 supported by the support shaft 19 of the fixed base 18.
[0015]
Next, a cutting means for cutting the road surface while rotating the body 1 around the fixed base 18 by the above-described rotating means will be described with reference to FIGS. The cutting means is composed of a lifting device 2 mounted at a substantially central portion in the front-rear direction of the body body 11 of the body 1 and a rotary blade 3 that is lifted and lowered by the lifting device 2. The lifting device 2 is a lifting device body 21. A rotating screw 23 having an elevating handle 22 which is erected in a freely rotating manner, and an inclined mounting base 25 which is screwed to the rotating screw 23 by an elevating screw 24 and is guided up and down by the elevating device body 21. The rotary blade 3 is formed in a dish shape and is driven by a motor 31 as a drive source. The motor 31 is attached to the inclined mounting base 25 by a mounting bracket 32 and a mounting band 33. In addition, the inclined mounting base 25 is disposed on the outer side of the lifting device main body 21 mounted on the airframe body 11, and the mounting surface of the inclined mounting base 25 is formed as an inclined surface that is inclined downward. ing. Further, when the motor 31 is attached to the inclined mounting base 25, the convex surface of the rotary blade 3 formed in a dish shape is located outward with respect to the machine body 1, and the lower half of the vertical cross-sectional shape of the rotary blade 3 Are attached so as to have a substantially vertical shape. Reference numeral 34 denotes a dust-proof cover surrounding the periphery of the rotary blade 3, and reference numeral 35 denotes a dust collector. By connecting the dust-proof cover 34 and the dust collector 35 with a flexible hose (not shown), the dust cut by the rotary blade 3 is obtained. Is to prevent the scattering of.
[0016]
The cutting means for cutting the road surface around the fixed base 18 while moving the machine body 1 of the road surface cutting machine for building pillars is configured as described above, and the operator drives the rotary blade 3 by the motor 31. Then, the rotary blade 3 is lowered by turning the lifting handle 22 to cut the road surface. The rotating blade 3 formed in a dish shape is attached so that the convex surface is located outward with respect to the machine body 1 and the lower half of the longitudinal sectional shape of the rotating blade 3 is substantially vertical. The rotary blade 3 can cut the road surface in a substantially vertical shape, and the rotary blade 3 receives sliding contact resistance by the convex surface formed in a dish shape, and the machine body 1 is rotated by the sliding contact resistance of the rotary blade 3. Finger turning to the opposite side of the convex surface of blade 3 While it is possible to cut the road surface in a circular arc shape.
[0017]
The road surface cutting machine for building pillars according to the present invention rotates the rotary blade 3 in the cutting means described above around the fixed base 18 together with the machine body 1 around the bearing 17 as the rotation support portion of the machine body 1 by the rotating means described above. Since it can be moved, the road surface can be cut into a circular shape with the support shaft 19 of the fixed base 18 as the center, and the bearing 17 is provided at a substantially central portion of the airframe 1. Since the distance from the cutting blade 3 can be reduced, the road surface can be cut into a circular shape having a relatively small diameter, and the airframe 1 rotates about the bearing 17 at the substantially central portion. It can be stably rotated and supported. In addition, since the machine body 1 is reinforced by the reinforcing frame 12 and the rotary blade 3 can be firmly supported by the bearing 17, the road surface can be stably cut by the rotary blade 3, and the bearing 17 of the machine body 1 can be removed. By displacing with respect to the rotary blade 3, the distance between the bearing 17 and the cutting blade 3 can be reduced / expanded, so the road surface is cut into circular shapes with different diameters according to the diameter of the pillar to be built. can do.
[0018]
Further, in the present invention, the rotary blade 3 that is moved up and down by the lifting device 2 mounted on the machine body 1 is arranged on the outer side of the lifting device 2 mounted on one side of the machine body 1 along the rotation direction of the machine body 1. Accordingly, the rotary blade 3 can be firmly supported on one side of the machine body 1 on the side where the rotary blade 3 is provided, and the bearing 17 of the machine body 1 can be supported by the machine body 1. The movement locus circle of the rotary blade 3 disposed on the side portion of the machine body 1 can be made relatively small in diameter, and the movement locus of the rotary blade 3 is coupled with the positioning of the rotary blade 3. Since the circle can be set to be approximately the same as the movement trajectory circle of the outer shell of the airframe 1, even when there is an obstacle such as a curbstone, the road surface approaching the obstacle is relatively easy without the airframe 1 getting in the way. Can be cut into circular shapes with a small diameter.
[0019]
【The invention's effect】
According to the invention according to claim 1 configured as described above, in the construction work for cutting the road surface, the rotation support portion of the fuselage is fixed to the road surface by the fixing base that supports the rotation support portion of the aircraft with the support shaft. Since the airframe can be rotated around the rotation support portion, the road surface can be cut into a circular shape, and the rotation support portion is provided at the substantially central portion of the airframe. Since the distance between the blade and the cutting blade can be reduced, the road surface can be cut into a relatively small circular shape, and the aircraft rotates around the rotation support portion at the center, which stabilizes the aircraft. Can be pivotally supported.
[0020]
Moreover, times Utateha, together are disposed outside of the lifting device main body of the onboard lifting device on one side frame of the machine body, it is formed on the inclined surface mounting surface inclined downward outward, the lifting device because it is mounted et the inclined mount for the lifting is guided in the body can be firmly supported on the one side frame on the side of the aircraft rotating blade of the rotary blade is disposed, moreover, the rotation of the body Combined with the support part being positioned at the substantially central part of the fuselage, the movement locus circle of the rotary blade arranged on the side frame of the fuselage can be made relatively small in diameter, and the movement of the rotary blade The trajectory circle can be set to approximately the same extent as the movement trajectory circle of the outer part of the fuselage, so even in places where there are obstacles such as curbs, the road surface approaching the obstacle can be made relatively without disturbing the aircraft. It can be cut into a circular shape with a small diameter.
Further, the rotary blade formed in a dish shape is attached so that the convex surface is located outward with respect to the airframe and the lower half of the longitudinal cross-sectional shape is substantially vertical. The road surface can be cut in a substantially vertical shape, and the rotary blade receives sliding contact resistance due to the convex surface formed in the shape of a dish. The sliding contact resistance of the rotary blade rotates the machine body to the side opposite to the convex surface of the rotary blade. The road surface can be cut into an arc shape while moving in a moving direction.
Further, according to the invention according to claim 2 configured as described above, the airframe is reinforced by the reinforcing frame, and the rotary blade can be firmly supported by the rotary support portion, so that the road surface can be stably cut by the rotary blade. The distance between the rotation support part and the cutting blade can be reduced or expanded by displacing the rotation support part of the machine body with respect to the rotation blade. Accordingly, the road surface can be cut into circular shapes having different diameters.
[Brief description of the drawings]
FIG. 1 is a rear view showing a part of a road surface cutting machine for a building pillar according to the present invention in a longitudinal section.
FIG. 2 is a plan view of a building column road surface cutting machine according to the present invention.
FIG. 3 is a side view of a building column road surface cutting machine according to the present invention.
FIG. 4 is an explanatory diagram of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Airframe 12 ... Reinforcement frame 13 ... Caster 14 ... Hand push handle 17 ... Bearing 18 which is a rotation support part ... Fixed stand 19 ... Support shaft 2 ... Lifting device 3 ... Rotary blade

Claims (2)

The rotation support portion provided at a substantially central portion of the body which is formed in a frame substantially rectangular so supported on the fixing base of the support shaft fixed to the road surface times rotating the body about said rotary support unit and motion means, mounted on the machine body, and a cutting means you cut the road surface in a circular shape by the rotation of the machine body,
The rotating means is attached to the vicinity of one side frame in the front frame of the machine body, and has a hand handle inclined to the rear side of the machine body,
The cutting means has a lifting device mounted on the one side frame, and a rotary blade that is lifted and lowered by the lifting device,
The lifting device is disposed on the outer side of the lifting device main body, and has an inclined mounting base that is formed on an inclined surface whose mounting surface is inclined downward and is guided up and down by the lifting device body. ,
The rotary blade is formed in a dish shape, and is attached to the inclined mounting base so that the convex surface is located outward with respect to the machine body, and the lower half of the vertical cross-sectional shape is substantially vertical. Tei Kenbashira for road cutting machine, characterized in that the Ru. Along a longitudinal direction of the reinforcing frame which is bridged substantially at the center of the machine body, to claim 1 where the long hole in which the rotation support portion is fixed slidably, characterized in that the that is bored The road surface cutting machine for building pillars described.

Images