JPS5921628Y2 - automatic pruning device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an automatic pruning device that mechanically trims the branches and leaves of shrubs planted mainly in highway separation zones.

Shrubs are generally planted in highway separation strips for greening and safety reasons, but if these are not regularly pruned, not only will they damage the aesthetics, but their branches and leaves will protrude into traffic lanes, creating a danger. It has always been the case that this is the case.

Conventionally, this pruning work was done manually using garden shears, etc., but this required a great deal of labor and time and tended to result in insufficient maintenance of the separation strip. Ta.

In view of these circumstances, the present invention aims to provide an automatic pruning device that can efficiently perform pruning mechanically instead of using manual labor.

Hereinafter, the configuration of the present invention will be described in detail based on one embodiment. In the figure, 1 is a loading platform of a small truck, 2 is a column that is erected in the center of the front of the loading platform and can be adjusted in height, and 3 is a column of the above-mentioned column 2. The pruning material 3 is a clipper-type pruning material attached to the upper end via an arm 4 that can freely rotate by 180 degrees.
A fixed blade a with a large number of protruding blades a' on both edges, two movable blades in the front and rear having corresponding protruding blades b', and a pusher that prevents both rotating blades b from above. Each of the movable blades S and B is configured to be able to reciprocate selectively by a certain amount in response to the rotation of a motor shaft built into the support post 2 via a crank rod D.

Reference numeral 7 denotes a U-shaped support frame which is pivotally mounted at the rear center of the loading platform 1 and can be elastically fixed via a spring 6. The iron frame 7 has an opening 9' in the axial direction on one side. A cylindrical cover 9 with a vertically elongated discharge groove 9'' formed on the opposite wall, a fixed blade 10 provided on both edges of the opening, and a rotating shaft 8 facing the fixed blade 10 (see Fig. 4). A rotary pruning machine 5 consisting of a vertically elongated rotary blade 8 driven by a motor (not shown) built into the pruning machine (see above) is fixedly supported on a shaft.

FIG. 4 shows an example of means for rotating and fixing the cover 9 to the support frame 7. On the top surface of the cover 9, which is pivotally supported at the ends of the upper and lower arms of the support frame, Many small holes 9a
The cover 9 can be rotated at an arbitrary angle by providing through-holes 7a in the upper arm 7' of the support frame that can communicate individually with the small holes 9a. A separate pin P is inserted into both the holes 7a and 9a that communicate with each other at the
The cover 9 can be fixed by inserting the
The range of design changes is not limited to the above-mentioned method, and various other rotation/fixing means may be employed.

In the figure, 11 is a generator installed on the truck bed 1, 12 is a conveyor for removing cut branches that is mounted on the clipper-type pruning material 3, and 13 is an auxiliary device attached to the lower surface of the support frame 7. Wheel 14 indicates a side wheel that adjusts the cutting width of the rotary pruning material 5.

The device of the present invention relating to the diagonal configuration usually has both of the above-mentioned pruning materials 3.
.
Similarly, the cover is rotated toward the planting side to determine the cutting width by operating the side wheels 14, and at the same time, the opening 9' of the cover is set so as to face the side of the shrub, and the above-mentioned pruning materials 3 and 5 are driven. The mortuary rack is gradually advanced with the side wheels 14 in contact with the shoulder stones 15.

By doing this, the upper surface of the shrubbery is trimmed to a certain height with the clipper type pruning material 3, and the cut branches are removed by the conveyor 12 onto the loading platform or the road surface, and at the same time, the side surface of the shrubbery is trimmed with the rotary pruning material 3. The cuttings are pruned to a constant cutting width using the wood 5, and the cut branches are discharged onto the road surface through the discharge groove 9''.

Incidentally, the branches and leaves thus released onto the road surface shall be separately collected by a vacuum car or the like.

On the other hand, the amount of mowing by the device of the present invention can be freely adjusted by expanding and contracting the second height of the support for the top surface of the shrubbery, and by adjusting the amount of protrusion of the side wheels 14 for the sides. Furthermore, if there are obstacles such as display boards or light poles in the separation zone, the guard on the loading platform rotates each pruning material each time to avoid them.

As described above, according to the present device, the top and side surfaces of the shrubbery can be mechanically and simultaneously pruned by both the pruning blades 3 and 5, so that the truck can be operated along the shoulder stones of the separation zone. By simply letting the hair dry, you can achieve beautiful pruning with a uniform finish in an extremely efficient manner.

In other words, the amount of work per day of the proposed device is approximately 4 to 6 km.
The amount of pruning achieved is more than 10 times that of conventional manual methods, so by using this device, the maintenance of plantings such as separation strips can be done well, especially for expressway management. It is an assessment of the outstanding benefits.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the pruning device according to the present invention in use, Fig. 2 is a longitudinal sectional view taken along the line A-A, Fig. 3 is a front view of the pruning device according to the present invention, and Fig. 4 is an enlarged view of a portion of the cover. FIG. In addition, in the diagram 1... Loading platform, 2... Support column,
3... Clipper type pruning material, 4... Arm, 5... Rotating pruning material, 6... Spring, 7... Support Frame, 8... Rotating blade, 9... Cover, 10... Fixed blade, 1
1... Generator, 12... Conveyor,
13... Auxiliary wheel, 14... Side wheel.

Claims (1)

[Scope of utility model registration request] A column is erected in the front center of the truck bed so that its height can be adjusted freely, and a clipper-type pruner consisting of a fixed blade and a movable blade is installed at the upper end of the column via an arm that can rotate 180 degrees. A support frame which can be rotated by a certain amount and can be fixed elastically by a spring or the like is pivoted at the center of the rear of the loading platform, and a cylindrical cover with one side opened in the axial direction is attached to the tip of the support frame. , fixed blades installed on both edges of the opening,
The automatic pruning device further comprises: a rotary pruning machine comprising a vertically elongated rotary blade that faces the fixed blade and is driven; the rotary pruning machine is fixedly supported, and at least a side wheel is provided on the lower surface of the support frame.