JPH036186Y2 - - Google Patents

Description

[Detailed explanation of the invention] (1) Industrial application field The present invention relates to the improvement of a pruning machine that can cut tree branches with a chainsaw while climbing along the tree trunk by itself. Specifically, the present invention relates to a pruning machine in which a cover is provided near the chain saw.

(2) Prior Art Usually, a branching machine has a plurality of wheels that hold the trunk of a tree, and a chainsaw that stands upward along the trunk of the tree. The chain saw rotates upward in a spiral pattern to cut branches.

However, lubricating oil is injected into the chain saw during operation, and the oil adheres to the wheels.
This causes the problem that the wheels slip, making it impossible to perform pruning work smoothly.

In addition, wood chips cut with a chainsaw fly toward the oil and adhere to it, causing various inconveniences in the operation and maintenance of the machine.

(3) Purpose The present invention was made in order to eliminate such adverse effects, and takes measures that can avoid as much as possible the lubricating oil of the chain saw and wood chips from adhering to other parts such as the wheels. This is what happens.

(4) Configuration It has a plurality of wheels that hold the tree trunk and a chain saw that stands upward along the tree trunk, and when the wheels are driven, the chain saw rotates and rises in a spiral shape. In a pruning machine designed to cut branches,
A cover plate is provided to surround the chain saw from below the driving sprocket of the chain saw to the point where the chain of the chain saw is making upward movement, and a vertical plate integrated with the cover plate is attached to the chain saw. A horizontal plate installed at the rear and integrated with the cover plate and the vertical plate is installed in a shape and size that covers a space surrounded by the wheels of the chain saw and the body frame of the pruning machine. The above pruning machine.

(5) Effects The present invention is provided with a cover plate 52 that surrounds the chain saw 28 from the vicinity of the location where lubricating oil is supplied to the chain saw 28 to the location where the chain saw 28 is making upward movement. Because it will be,
It is possible to suitably prevent drops or mist of the lubricating oil sprayed and supplied to the chain saw from adhering to the wheels 12 and the like.

Therefore, it is possible to prevent the wheels 12 from slipping and, for example, when the lifting height of a pruning machine is regulated by a timer, it is possible to prevent an error from occurring between the lifting height and the set time, and to prevent the wheels from slipping. Pruning can always be done.

The vertical plate 38 integrated with the cover plate 52 is installed at the rear of the chain saw, and the horizontal plate 40 integrated with the cover plate and the vertical plate is installed between the wheels 12 of the chain saw and the pruning machine. Airframe frame 1
Since it is installed in a shape and size that covers the space surrounded by 4, it becomes difficult for cutting waste, chips, etc. from the chain saw to scatter toward the oil. Therefore, machine malfunctions that were previously caused by a mixture of oil and chips, etc.
This can eliminate frequent cleaning.

Furthermore, the cover plate, vertical plate, and horizontal plate also function as a safety device to prevent the human body or tree trunk from touching the chainsaw, and also to prevent cut branches from becoming caught between the wheels. I can do it.

Furthermore, since the cover plate, vertical plate, and horizontal plate are three-dimensionally integrated, their mutual strength can be improved, and branches can be removed smoothly.

(6) Embodiments Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1, 2, and 3, the pruning machine according to the present invention has an arcuate main frame 14 equipped with a drive wheel 12 that extends around the outer periphery of a tree trunk 10, and an idler wheel. The frame 16 is connected to the sub-frame 18 with a pin 20, and the frames 14 and 18 are pulled together by a spring 22.

Further, this pruning machine is equipped with an engine 24, and this power is appropriately decelerated in a chain saw drive transmission case 26 and transmitted to a chain saw 28 attached to the case 26. The speed is reduced within the case 30 and transmitted to the drive wheels 12 as well.

When this pruning machine is attached to the trunk 10 and the prime mover 24 is started, the drive wheel 12 rotates and the trunk 10 is
While climbing in a spiral along the
This will cut off the branches that are on the way up.

In addition, cases 26 and 30 including chain saw 28
etc. can swing around a swinging fulcrum 32, and the fulcrum 32 is set forward in the direction of travel from the center of gravity of the case 26, etc., so when moving upward,
The chain saw 28 is attracted to the trunk 10 side by its inertial force and transmission reaction force, and the chain saw 28 is pulled toward the trunk 10 by the chain saw bar abutment 34 that guides the chain saw 28.
The interval from 0 is determined. Thereby, the amount of protrusion of the branch after cutting is kept constant.

Further, when the pruning machine climbs a certain distance, the vertical switching device is activated, and the vertical switching lever 36 is automatically switched to reverse the driving wheels 12 and the pruning machine descends.

Next, in the figure, 38 is a vertical plate provided at the rear of the chain saw 28, and 40 is a horizontal plate fixed to the lower part of the vertical plate.

The vertical plate 38 extends toward the engine 24 from around the part where the chain 42 of the chainsaw is performing upward movement, and is formed as a beveled edge 44 on the outside.

The horizontal plate 40 includes the chain saw 28 and the drive wheel 12.
and the main frame 14.

These plates 38 and 40 are fixed to the chain saw drive transmission case 26 via a fixing member 46.

When the pruning machine climbs up while turning, the plates 38 and 40 also climb up along with it. The branches 48 cut by the chainsaw 28 are then cut by the horizontal board 40.
and is prevented from penetrating towards the wheel 12. In addition, if the tip of the cut branch 48 gets caught and does not fall immediately, the pruning machine
Since it turns with the branch base placed on top of it, the branch base moves backward on the horizontal plate 40, and finally reaches the vertical plate 38 and is removed outward.

Here, during the above-mentioned pruning work, lubricating oil is automatically supplied to the chain saw 28 to make its movement smooth.

The lubricating oil is injected toward the ascending portion of the chain 42 from an injection hole (not shown) provided near the drive sprocket 50 of the chain saw 28. The injected lubricating oil becomes a mist and adheres to the chain 42, but some of it passes through the sprocket 50 and other parts and drips downward, while the other part is splashed off by the chain 42 and hits other parts. It travels and drips downward.

In this invention, we prevent this lubricating oil from dripping,
This prevents lubricating oil from adhering to the wheels 12 or the wooden surface.

That is, in the figure, 52 is a cover plate that surrounds the chain saw 28 and is provided to prevent lubricant from adhering.

The cover plate surrounds the chain saw 28 from below the drive sprocket 50 of the chain saw 28 to a location where the chain 42 of the chain saw 28 is making upward movement.

Further, the cover plate 52 includes the horizontal plate 40 and the vertical plate 3.
8 and is supported by these.

As a result, the lubricating oil injected toward the chain saw 28 becomes particles, collides with the inner surface of the cover plate 52, and rises with the upward movement of the chain 42, but is blocked by the cover plate 52 and adheres to outside members. It becomes difficult. Even if the lubricating oil adhering to the inner surface of the cover plate 52 drips, it is caught at the lowest part of the cover plate and does not reach the wheels 12.

Furthermore, it is possible to prevent inconveniences such as chips and the like being blocked by the vertical and horizontal plates 38 and 40, making it difficult for them to scatter toward the oil, and causing a disturbance in the equipment as a mixture of these chips. becomes.

[Brief explanation of drawings]

Fig. 1 is a front view of a pruning machine equipped with a cover according to the present invention, Fig. 2 is a plan view, and Fig. 3 is a partial side view of the pruning machine as seen from the ascending side of the chain. 10...Tree trunk, 12...Drive wheel, 28...Chain saw, 38...Vertical board, 40...Horizontal board, 42...
...Chain, 48... Branch, 50... Chain drive sprocket, 52... Cover plate.

Claims (1)

[Scope of utility model registration request] A plurality of wheels 12 and 16 that hold the tree trunk 10
and a chain saw 28 that stands upward along the tree trunk 10, and the chain saw 28 spirally rotates and rises to cut the branch 48 when the wheels 12 are driven. In this machine, a cover plate 52 is attached to surround the chain saw 28 from below the driving sprocket 50 of the chain saw 28 to a portion where the chain 42 of the chain saw 28 is making upward movement, and the cover plate 52 and The integrated vertical plate 38 is arranged at the rear of the chain saw 28, and the cover plate 52 and the horizontal plate 40 integrated with the vertical plate 38 are connected to the wheels 12 of the chain saw 28 and the body frame 14 of the pruning machine. The above pruning machine is characterized in that it is installed in a shape and size that covers a space surrounded by.