JPH0870700A - Hedge trimming device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a hedge cutting device that cuts the outline of a hedge in a flat shape with a long cutter, the burden on the operator when the hedge extends over a long distance or is installed at a high place While mitigating
The purpose is to improve the finished state. [Structure] A post portion 2 is erected on a loading platform 1 of a vehicle such as a truck, and a boom portion 3 is provided on an upper portion of the post portion 2 with a locking pin 28.
Is attached so that it can rotate on a horizontal plane. The handle 33 of the trimmer 5 having the cutter 4 is inserted between the two flanges 32, 32 provided at the other end of the boom portion 3, and the fasteners 36,
Fix at 36. In this case, the cutter 4 is projected horizontally on the side of the luggage carrier 1, and the upper blade 34 and the lower blade 35 of the cutter 4 face the traveling direction of the vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hedge cutting device having a long cutter for cutting a hedge into a flat plane.

[0002]

2. Description of the Related Art Some hedges in parks and golf courses have a flat outer shape. To trim such hedges, a cutting device equipped with a long cutter is used.
As such a trimming device, for example, a cutter having a fixed blade and a movable blade that slides and vibrates at a predetermined stroke with respect to the fixed blade is provided to a trimmer main body provided with a long extension, and a rotational driving force generated by a prime mover is applied to the main body. It is known that a wire for transmission is connected, and the transmitted rotational movement is converted into reciprocating movement by a gear device built in the main body to drive the movable blade. Then, at the time of use, a worker holds the mower body while carrying the prime mover on his back, and walks while applying the cutter in parallel along the cut surface of the hedge to flatten the hedge. It is customary to cut it into a shape. However, when mowing hedges that have been installed over a long distance, the walking distance of the worker becomes long and not only the labor burden increases, but also the finishing state of cutting is deteriorated due to excessive labor burden. There is also a fear. Also, when cutting high parts of hedges,
I cannot do smooth work.

Therefore, in such a case, an operator may ride on a loading platform such as a truck and hold the trimmer main body with the cutter protruding to the side of the vehicle so that the vehicle runs along the hedge. Has been done. This eliminates the need for the worker to walk and allows the prime mover to be placed on the bed, eliminating the need to carry it, and as a result, the cutter can be applied to the cut surface of the hedge to trim the crop. The work can be performed, the labor load on the worker can be reduced, and the work can be performed smoothly even when cutting a high part of the hedge.

[0004]

However, in the method of using a vehicle as described above, an operator resists the swaying of a traveling vehicle and keeps the cutter at a certain height while protruding horizontally, for example. Since it must be maintained, the method does not necessarily reduce the labor burden on workers. In particular, when pruning a higher part of the hedge, the worker may get on the pallet stacked on the bed, but in this case, the degree of shaking increases and there is a problem in terms of work safety. Occurs.

The present invention addresses the above problems when cutting hedges that are installed over long distances in a planar manner or when cutting high parts of hedges, thus reducing the labor burden on workers. An object of the present invention is to provide a hedge cutting device that can surely reduce the amount of cut and can smoothly cut a high part of a hedge.

[0006]

That is, the invention according to claim 1 of the present application (hereinafter referred to as the "first invention") includes a post member standing on a bed of a vehicle and an upper portion of the post member. A boom member that extends in the horizontal direction, a cutting member that is attached to the boom member and moves along the cut surface of the hedge as the vehicle travels, and a boom member that is placed on the vehicle and that has a transmission member interposed therebetween. A hedge trimming device comprising: a prime mover for operating a trimming member.

According to a second aspect of the invention (hereinafter referred to as the "second invention"), in the first aspect of the invention, the cutting member extends in the horizontal direction, and the boom member is attached to the post member so as to be pivotable in a horizontal plane. It is characterized by being.

The invention according to claim 3 (hereinafter referred to as "the third
Invention. ) In the above-mentioned first invention, the cutting member extends in the vertical direction.

Further, in the invention described in claim 4 (hereinafter referred to as "the fourth invention"), in any one of the above-mentioned first invention, second invention or third invention, the boom member is extendable / contractible in the horizontal direction. The post member is characterized by being extendable and contractible in the vertical direction.

[0010]

According to the above construction, the following operation can be obtained.

That is, according to the first aspect of the present invention, the cutting member is attached to the boom member that extends horizontally from the upper portion of the post member that is erected on the bed of the vehicle, and the hedge is covered with the traveling of the vehicle. As it moves along the cutting surface,
By simply running the vehicle along the hedge, the hedge can be uniformly cut into a planar shape by the cutting member.

As a result, not only the worker does not have to walk, but also the worker does not have to keep holding the cutter against the sway of the traveling vehicle, and the labor burden is surely reduced, and the finished state of cutting is achieved. Can be prevented. Further, since the prime mover for operating the trimming member is mounted on the vehicle, it is not necessary for the operator to carry the prime mover, and the labor burden is further reduced. Furthermore, since the body of the conventional cutting device can be used as the cutting member, it is not necessary to newly manufacture the entire device of the present invention.

According to the second aspect of the invention, since the cutting member extends in the horizontal direction, the hedge can be cut in a horizontal plane, while the boom member is attached to the post member so as to be pivotable in a horizontal plane. Since the cutting member swings along the cut surface, it is possible to cut a hedge having a width equal to or larger than the blade width of the cutting member into a horizontal plane. In this case, the operator can cut the hedge having a width equal to or larger than the blade width by simply swinging the grip without holding the cutting member or the boom member.

Further, when the cutting member is a double-edged blade, the hedge can be cut at any time by reciprocating movement during rocking, so that uncut residue can be prevented and the working accuracy is further improved.

On the other hand, according to the third invention, since the cutting member extends in the vertical direction, the hedge can be cut into a vertical plane. Also, the operator holds the cutting member,
There is no need to rock it.

Further, according to the fourth aspect of the invention, since the boom member is extendable / contractible in the horizontal direction and the post member is extendable / contractible in the vertical direction, the cutting member is arranged at desired positions in the vertical and horizontal directions. As a result, it is possible to cope with various installation modes of the hedge, and it is possible to smoothly trim the high part of the hedge.

If the post member is not fixed to the bed of the vehicle to stand upright, but a rail extending in the vehicle width direction is provided on the bed, and the substrate of the post member can be moved along the rail. The mowing work can be performed regardless of which side of the vehicle has hedges to be mowed.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

The hedge trimming device in this embodiment is shown in FIG.
As shown in FIG. 2, a post portion 2 provided upright on a bed 1 of a vehicle such as a truck, a boom portion 3 having one end attached to an upper portion of the post portion 2 and extending in a horizontal direction, and a long cutter. The cutter 4 is mounted on the other end of the boom part 3 so that the cutter 4 horizontally projects to the side of the vehicle, and is mounted on the base plate 6 of the post part 2. It has a prime mover 7 for driving the cutter 4, and a transmission wire 9 arranged between the prime mover 7 and the main body 8 of the trimmer 5 for transmitting the driving force of the prime mover 7 to the trimmer 5.

The post 2 is provided with a hollow fixed column 10 having a quadrangular cross section on the substrate 6 extending in the vertical direction, and inside the column 10, a movable column having a quadrangular cross section is also provided. 11 is fitted so as to be able to move up and down, and an elevating device 12 for elevating the movable column 11 up and down and holding it at a predetermined height position is provided. On the other hand, two rails 13, 13 having a U-shaped cross section are arranged on the loading platform 1 of the vehicle so as to face each other and extend in the vehicle width direction in parallel at predetermined intervals.
3a is inserted so that both side portions of the substrate 6 are grasped, and the substrate 6 or the post portion 2 as a whole is provided with the rails 13,
It is configured to be slidable in the vehicle width direction along the line 13. A screw hole 13b and a lock bolt 14 screwed into the screw hole 13b are provided at a predetermined position of the upper flange of the rail 13, so that the board 6 can be tightened and fixed to the rail 13. Has been done.

As shown in the enlarged view of FIG. 3, the lifting device 12 is a first locking plate which is mounted on the upper end of the hollow movable column 11 and locks the outer cylinder 15 of the boom section 3 described later. Hook 17 fixed to the lower surface of 16 and the movable support 1
1, a pulley 18 provided on the bottom of the movable support 11
The guide bar 20 provided on the inner surface of the fixed strut 10 in the vicinity of the opening 19 formed at a predetermined height on the side wall of the fixed strut 10 that internally houses It has a pulley 21 provided on the outer surface of the side wall of the fixed column 10 with the pinch 19 in between, and a winch 22 attached to the outer surface of the side wall of the fixed column 10 below the pulley 21. The vertically elongated slit 23 is formed so that the guide bar 20 disposed in the above does not contact the side wall of the movable support column 11, and the wire 24 hung from the hook 17 is attached to the bottom pulley 1
The movable column 11 is lifted by winding the winding shaft 22a of the winch 22 through the guide bar 20, the slit 23, the opening 19, and the external pulley 21. In that case, a ratchet 25 and a ratchet claw 26 that rotate integrally with the winding shaft 22a are provided, thereby preventing the winding shaft 22a from rewinding and holding the movable support column 11 at a predetermined height position. It is designed to be done.

On the other hand, the boom portion 3 includes the first locking plate 16 described above.
One end is locked by a locking pin 28 between the second locking plate 27 and the second locking plate 27 attached to the movable column 11 below the locking plate 16, and the locking pin 28 can be pivoted in the horizontal plane. It has a hollow outer cylinder 15 having a quadrangular cross section that extends in the horizontal direction, and an inner cylinder 29 having the same quadrangular cross section is fitted inside the outer cylinder 15 so as to be slidable in the horizontal direction. ing. In that case, a screw hole 15a and a lock bolt 30 screwed into the screw hole 15a are provided at a predetermined position on the side surface of the outer cylinder 15, whereby the inner cylinder 29 is tightened and the outer cylinder 15 is secured to the outer cylinder 15. It is designed to be fixed. Further, a vertical plate-shaped mounting plate 31 is provided at the projecting end of the inner cylinder 29.
Is fixed to the outer surface of the mounting plate 31,
Two arc-shaped flanges 32, 32 are vertically provided so as to face each other and project in the horizontal direction.
A handle 33 provided on the main body 8 of the trimmer 5 is inserted and supported therebetween.

In this trimmer 5, a cutter 4 including an upper blade 34 that is a fixed blade and a lower blade 35 that is a movable blade that slides and vibrates at a predetermined stroke with respect to the upper blade 34 is provided so as to project from the main body 8 for a long time. The handle 33 is integrally provided with the main body 8 on the side opposite to the position where the cutter 4 is disposed. Then, the handle 33 is inserted between the two flanges 32, 32 and is tightened by the two fasteners 36, 36, whereby the mower 5 is attached to the boom 3. In that case,
The cutter 4 is attached so as to project in the horizontal direction and project to the side of the luggage carrier 1, and the blade thereof faces the traveling direction of the vehicle.

A prime mover 7 for generating a driving force for slidingly vibrating the lower blade 35 of the cutter 4 is mounted on the substrate 6, and a bendable transmission wire for transmitting the rotational driving force to the outside. 9 is the prime mover 7 and the trimmer 5
The gear device (not shown) is disposed between the handle 33 and the handle 33, and further passes through the handle 33 and is built in the trimmer body 8. The transmission wire 9 rotates about its axis to allow the rotational driving force of the prime mover 7 to be removed.
The transmitted rotary motion is converted into reciprocating motion by the gear device, whereby the lower blade 35 is slid and vibrated.

Further, both sides of the first locking plate 16 and the second locking plate 27 on which the locking pin 28 is provided are bulged portions 16a and 27a, respectively.
Two safety bars 37, 37 are provided between a and 27a perpendicularly to the vehicle front direction and the vehicle rear direction, respectively. This allows
As shown by the chain line in FIG. 1, the boom portion 3 is within a range in which it abuts the two front and rear safety bars 37, 37 (in this embodiment, within a range of 45 degrees forward and 45 degrees rearward of the vehicle). Only the locking pin 28 can be swung.

Next, the operation of the hedge cutting device in this embodiment will be described.

First, the trimmer 5 has an arc-shaped flange 3
2, 32, the mounting plate 31, the inner cylinder 29, the outer cylinder 15, the first locking plate 16 and the second locking plate 27 are connected to the movable column 11 of the post portion 2, so that the movable column 11 The height position of the cutter 4 of the trimmer 5 can be changed up and down by raising and lowering the cutter by the lifting device 12, and by sliding the inner cylinder 29 in the outer cylinder 15, the cutter 4 of the cutter 4 can be moved. The position in the lateral direction can be changed (see FIG. 2).

Then, as shown in FIG. 4, the base plate 6 of the post portion 2 is fixed to the right of the rails 13 and 13 in the vehicle traveling direction, and the height of the post portion 2 and the length of the boom portion 3 are adjusted. When the cutter 4 is brought into contact with the upper surface of the hedge X to be trimmed and the trimmer 5 is operated in this state to cause the vehicle to travel forward along the hedge X, the cutter 4 causes the upper surface of the hedge X to be horizontal. It will be cut. At this time, since the vertical position and the lateral position of the cutter 4 are constantly fixed by the lifting device 12 and the lock bolt 30, the cut surface of the hedge X is uniformly cut into a horizontal plane, As a result, it is not necessary for the worker to walk while carrying the trimming device or to keep the trimming machine against the sway of the traveling vehicle, and the labor load on the worker is surely reduced and the work is performed. The accuracy will be improved.

Further, as shown by the chain line in the drawing, the trimmer 5 swings on the horizontal plane within the range of 45 degrees in the front direction and 45 degrees in the rear direction of the vehicle about the locking pin 28 via the boom portion 3. Therefore, the operator swings the boom part 3 to swing the cutter 4 on the cut surface of the hedge X, thereby cutting the hedge X having a width Wx not less than the blade width Wo of the cutter 4. It becomes possible to do. In that case, since the swing of the cutter 4 is limited by the two safety bars 37, 37 between 45 degrees in the front direction and 45 degrees in the rear direction of the vehicle, the cutter 4 does not come into contact with other devices. In addition, work safety will be improved.

On the other hand, the boom portion 3 to which the trimming machine 5 is attached has its length adjusted in the horizontal direction by sliding the inner cylinder 29 thereof, and the post portion 2 to which the boom portion 3 is attached has its movable support post. Since the vertical length is adjusted by raising and lowering 11, the trimmer 5 and the cutter 4 thereof can be adjusted.
As a result of being able to appropriately adjust the vertical and lateral positions of the hedge, when the high part of the hedge is trimmed or the vehicle cannot approach the hedge, the hedge can be trimmed smoothly. It becomes possible.

Further, since the conventional trimming device can be used for the trimmer 5, the prime mover 7, and the transmission wire 9, it is not necessary to newly manufacture the hedge trimming device.

Further, as shown in FIG. 5, the direction of the post portion 2 is reversed right and left, and then the substrate 6 is mounted on the rails 13, 1.
3 is fixed to the left side in the vehicle traveling direction, and when the trimmer 5 is mounted upside down on the boom part 3, the same side to the hedge X is moved in the opposite direction and the hedge X is trimmed again. be able to.

Next, another embodiment of the present invention will be described with reference to FIGS. 6 and 7.
It will be described based on. The same reference numerals are used for the same components.

Movable column 11 of the hedge trimming device shown in FIG.
An inner shaft 38 having a quadrangular cross section that extends horizontally toward the side of the vehicle is projected from the upper part of the vehicle, and a hollow outer shaft 39 having a quadrangular cross section is also slidably mounted on the inner shaft 38. ing. A lock bolt 30 for fixing the outer shaft 39 at a predetermined slide position is provided on the side surface of the outer shaft 39.

On the other hand, an L-shaped mower mounting plate 40 is provided at the projecting end of the outer shaft 39, and a projecting shaft 41 having a quadrangular cross section provided on the vertical wall is inserted into the outer shaft 39. The fixing bolts 42 are tightened and attached. Two arcuate flanges 32, 32 are provided on the lateral wall of the mounting plate 40 so as to face each other downward, and the handle 33 of the trimmer body 8 is inserted between the flanges 32, 32. And is fastened by the two fasteners 36, 36. This allows the mower 5 to
The cutter 4 juts out downward on the side of the loading platform 1,
Moreover, the blade of the cutter 4 is attached to the boom portion 3 so as to face the traveling direction of the vehicle.

In the hedge cutting device of this embodiment, since the cutter 4 is arranged so as to extend vertically downward, the side surface of the hedge X to be cut is cut into a vertical plane. In that case, since the outer shaft 39 is fixed to the movable support column 11, the cutter 4 always runs parallel to the cut surface of the hedge X, and the operator shakes the boom portion 3 or the trimmer 5. The side surface of the hedge X can be uniformly cut into a vertical surface without moving. Further, as shown by the chain line in the figure, when the attachment direction of the attachment plate 40 to the outer shaft 39 is reversed so that the cutter 4 extends upward, the side face of the hedge provided at a high place is trimmed. Is possible.

On the other hand, in the embodiment shown in FIG. 7, two pairs of rails 13 and 13 are installed on the loading platform 1 of the vehicle and provided with a mowing device for mowing the upper surface of the hedge X and a mowing device for mowing the side surface thereof. Therefore, the top and side surfaces of the hedge X can be cut into a planar shape at the same time.

Further, in this embodiment, since the trimmer 5 having the double-edged cutter 4 is attached to the mounting plate 31 or 40, in the upper surface trimming device, it is necessary to swing the cutter 4 forward. Not only that, the hedge can be cut even when it is swung rearward, avoiding uncut residue and improving the finished state, and at the same time, the direction of the post portion 2 is reversed left and right, and the substrate 6 Rail 13,
When fixed to the left of the vehicle traveling direction of 13, the trimmer 5
It is possible to trim the upper surface of the hedge X again by traveling forward on the same side with respect to the hedge X in the opposite direction without turning upside down. And in the side trimming device,
When the direction of the post portion 2 is reversed right and left and the board 6 is fixed to the left of the rails 13 and 13 in the vehicle traveling direction, the hedges X can be cut without reversing the front and rear directions of the trimmer 5.
To the hedge X
When the mounting plate 40 is attached to the outer shaft 39 with the mounting plate 40 facing upward in order to trim the side face of the hedge provided at a high place as well as the side face of the trimmer can be trimmed again, the front and rear directions of the trimmer 5 are reversed. There is no need to do it.

[0039]

As described above, according to the present invention,
Since it is possible to cut the outer shape of the hedge into a flat plane simply by running the vehicle along the hedge to be trimmed using a vehicle, it is necessary for an operator to walk while carrying the prime mover or the trimming apparatus main body. Not only is it eliminated, but it is no longer necessary to keep holding the cutter against the sway of the traveling vehicle, the labor load is certainly reduced, and the cutting work accuracy is improved.

When the trimmer is made swivel, an operator can cut a hedge having a width equal to or larger than the blade width of the cutter only by swinging the trimmer without holding the trimmer. On the other hand, when it is not necessary to swing the trimmer, the labor load on the worker is further reduced.

Further, since the vertical and lateral positions of the trimmer or the cutter can be adjusted as appropriate, even when the surface to be trimmed is at a high place or the vehicle cannot run close to the hedge, It is possible to work smoothly on the hedge.

Further, since the conventional pruning device can be used, it is not necessary to manufacture the entire new device, which is rational.

On the other hand, when a double-edged cutter is used, the hedge can be cut at any time by reciprocating movement during rocking, so that not only the working accuracy can be improved but also the direction of installation of the cutting device can be improved. This is preferable because it is not necessary to change the mounting direction of the trimmer accordingly.

Furthermore, since the mowing device is not fixed to the bed of the vehicle but is movable along the rail extending in the vehicle width direction, the hedge to be trimmed is located on either side of the vehicle. Even if it is installed in the area, the work can be done.

[Brief description of drawings]

FIG. 1 is a plan view of a hedge trimming device according to a first embodiment of the present invention.

FIG. 2 is a side view of the hedge trimming device.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is an explanatory diagram of an operation in the above embodiment.

FIG. 5 is likewise an explanatory view of the operation in the above embodiment.

FIG. 6 is a side view of the hedge cutting device in the second embodiment of the present invention.

FIG. 7 is an explanatory diagram of an operation in the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Loading platform 2 Post part 3 Boom part 4 Cutter 5 Mower 6 Board 7 Motor 9 Transmission wire 10 Fixed prop 11 Movable prop 12 Lifting device 13 Rail 15 Outer cylinder 28 Locking pin 29 Inner cylinder 37 Safety bar

Claims (4)

[Claims] 1. A post member provided upright on a carrier of a vehicle,
A boom member that extends horizontally from the upper portion of the post member, a trimming member that is attached to the boom member and moves along the trimmed surface of the hedge as the vehicle travels, and is mounted on the vehicle. A hedge cutting device, comprising: a prime mover for operating the cutting member via a transmission member. 2. The hedge cutting device according to claim 1, wherein the cutting member extends in a horizontal direction, and the boom member is attached to the post member so as to be rotatable in a horizontal plane. 3. The hedge cutting device according to claim 1, wherein the cutting member extends in a vertical direction. 4. The hedge trimmer according to claim 1, wherein the boom member is extendable / contractible in a horizontal direction, and the post member is extendable / contractible in a vertical direction. apparatus.