JPH0620376Y2 - High branch cutting machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a high-branch cutting machine used for pruning branches of tall trees and fruit-picking work.

[Prior art]

As a tool used for pruning tall tree branches and collecting fruits, one with a saw installed at the tip of a long handle, or scissors at the tip of a long handle, with movable scissors blades. A body is provided with a drawstring or the like, and the one that opens and closes the blade of the scissors by operating this is used, and moreover, these articles have a means for grasping an object to be cut. In general, there is a device for cutting fruits such as the device of Japanese Utility Model Publication No. 54-123365, which holds the fruit with scissors and cuts the branch at the edge of the fruit.

[Problems to be solved by the device]

Conventional saws and scissors for cutting cuts in high places of trees often do not have a device for gripping cuts as described above, so branches and fruits cut off from the trunk of the tree. When the cut object such as cut off falls on the ground at the same time and collides with a person engaged in the work of pruning and fruit harvesting, which may cause harm, and when the fruit falls on the ground damages such as cracking and reduces the commercial value Is.

In addition, the above-mentioned cut object may be cut off from the trunk and caught on other branches during the fall and may not reach the ground, so if it is left unattended, it will become a nest of pests and damage the ventilation between the branches and the sunlight and cause disease. As the pruning work of the corners becomes useless, it is not allowed to leave the cut object and it is required to be surely removed. The actual development 54-1 devised for this requirement
The invention of 23365 is a cooperating device in which the alligator movable piece for gripping the cut object and the cutting blade piece are integrally configured. Therefore, when the cut object has a small diameter, the cut object is cut while gripping the cut object. Although the purpose can be achieved, conversely, if the cut object becomes thick, the gripping of the cut object at the crocodile part will be limited and operation will be restricted, and as a result, the cutting blade piece can cut into the cut object. Disappear.

According to the invention, before the branches and fruits are separated from the tree, the grips provided in the cutting parts strongly hold the shafts of the branches and fruits in advance and then separate the branches and fruits from the trunk at the cutting parts. It is an object of the present invention to provide a safe and reliable material that does not leave a residue on a tree because the material to be cut may harm or damage the worker.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, this invention has a blade (2 ₁ ) provided on the side of the base body (1) alongside the base body (1) at the tip of the base body ( ₁ ).
When, the receiving blade (2 ₁₎ cutting edge to edge line of the (2 ₂₎ cutting the cutting edge (2 ₂₎ to the edge line is facing in receiving shaft (9) in the receiving blades (2 ₁₎ of the (2 ₂ ) is the base of the receiving shaft (receiving blades engaged to be rotated with respect to 9) (2 ₁₎ and cutting edge (2 ₂₎ and the de-cutting portion constituting the cutting portion (2) (2) (1 ) The long handle (3)
The blade of the cutting part (2) above installed on the rod tip of
On either the front side or the back side of (2 ₁ ), the blade (2
₍₁ ) Blade line and the receiving surface (4 ₁ ) of the pedestal (4 ₁ ) that supports the cutting object.
Secure the pedestal (4 ₁ ) so that ( ₁₁ ) is flush with the cutting edge.
(2 ₂₎ supporting surface on the same side as the support surface of the receiving blades cradle provided on the (2 ₁₎ (4 ₁₎ of the foot stock by the opening and closing operation for receiving blade (2 ₁₎ of the cutting edge (2 ₂₎ Interlocking body that opens and closes (4 ₂ ) to the pedestal (4 ₁ )
(6) One end of the interlocking body (6) is engaged with the receiving shaft (9) so that the interlocking body (6) can rotate with respect to the receiving shaft (9).
Insert the drive part (6 ₁ ) on the side opposite to the part that engages with (9) to the cutting edge (2 ₂ ).
The interlocking body (6) is connected to the support shaft (10) on the support shaft (10) provided on the driving body (2 ₃ ).
Rotatably engaged with the cutting edge (2
_On the surface of the interlocking body (6) that overlaps the supporting surface of (2), the receiving surface (4 ₁₁ ) of the receiving base (4 ₁ ) of the blade (2 ₁ ) and the pressing surface (4 ₂₁ ) of the press base (4 ₂ ). ) are facing, and the receiving surface (4 ₁₁₎ on pushing surface (4 ₂₁₎ to the bearing shaft (9) and tailstock (4 ₂₎ capable of separating and approaching the foot stock (4 ₂₎ is close to the the separating foot stock (4 ₂₎ tail stock (4 ₂₎ in the bearing shaft (9) that can engage so that it can rotate relative to bearing shaft (9), the receiving blade receiving shaft (2 ₁₎ (9) Supports the cutting edge (2 ₂ ), the interlocking body (6) and the press base (4 ₂ ).
(4 ₂ ) and the driving part (6 ₁ ) of the interlocking body (6), the pressing surface of the presser base (4 ₂ )
(4 ₂₁ ) is provided with a spring (5) for urging the pedestal (4 ₁ ) toward the receiving surface (4 ₁₁ ).

[Action]

This invention is a pocket (1 ₂ ) of a base body (1) provided at the tip of a long handle rod (3) grasped by a worker standing on the ground at the cutting point of a tall tree branch to be cut. Hook the branch and support the branch between the pedestal (4 ₁ ) and the blade (2 ₁ ) of the gripper (4) and operate the driver (2 ₃ ) to move the cutting edge (2 ₂ ). When it is cut into the branch, the cutting starts and at the same time, the pusher (4 ₂ ) of the gripping body (4) contacts the branch and the pusher (4 ₂ ) transmits through the interlocking body (6) as the cutting progresses. The gripping body (4) strongly grips the branch by being driven by the driving force of the cutting blade (2 ₂ ) and the elastic force of the spring (5). During this time, the cutting operation continues to proceed and the cutting edge (2 ₂ )
Cuts off the branch, but the pusher (4 ₂ ) of the gripping body (4) that holds the branch cannot move any further, and keeps compressing the spring (5) to continue to compress the spring (5). The branch is cut while strengthening the resilience and gripping the branch even more powerfully. In the above cutting operation, the pulling cord (7) is connected to the driving body (2 ₃ ) of the cutting blade (2 ₂ ), and the pulling cord (7) is operated from the ground so that the cutting portion (2) performs the cutting action. Then the branches are cut. If the pulling string (7) is continued to be pulled even after the branch is cut in this way, the gripping body (4) will continue to hold the branch that has been cut off from the trunk, so the branch will not drop to the ground at the end of cutting. , After pulling down the handle rod (3) to the ground and loosening the pull of the drawstring (7), the cutting blade (2 ₂ ) and the base
(1) Contraction of the return spring (8) between the tip and the cutting edge (2
₂ ) moves away from the receiving blade (2 ₁ ) and the gripper (4) also moves from the receiving base (4 ₁ ) to the holding base (4) in conjunction with the operation of the cutting blade (2 ₂ ) of the cutting part (2).
(4 ₂ ) releases the grip of the cut off branch and the pruning work of the branch ends and the pruning of the next branch is completed. Regarding the gripping of a branch by the gripping body (4), this gripping body (4) can correspond to the size of the branch that is the cut object, and if it is a thick branch, it is a platform.
(4 ₂ ) moves away from the pedestal (4 ₁ ) to grab an object to be cut, and conversely, if a thin branch is to be grabbed, the pusher (4 ₂ ) approaches the pedestal (4 ₁ ) side to cut the object. It grasps an object, and since the force of grasping is obtained from the constant elastic force of the spring (5), it exerts a strong grasping force regardless of the thickness of the cut object. Therefore, the cutting portion (2) can keep cutting regardless of the thickness of the object to be cut, and does not leave uncut.

〔Example〕

 An embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 3 are views showing a main part of a high branch cutting machine of the present invention, FIG. 4 is a view for explaining an operation procedure of the present invention, and FIG. 5 is a cutting portion and an interlocking body. FIG. 3 is a view for explaining a relation state between the gripping body and a holding body, wherein (1) is a base body and has a long handle rod (3) at its base, and the length of the handle rod (3) is a target. Depending on the height of the tree to be used, there are those made of rods and pipes with a length of about 2 to 3 meters, and those that can be expanded and contracted.

The base body (1) is the blade (2 ₁ ) of the cutting part (2) that has a pocket (1 ₂ ) inside the tip of which bends like a hook and the inside accommodates the object to be cut, and the blade (2 ₁ ) part Is cut in two in the vertical direction
The cutting edge (2 ₂ ) of ( ₂ ) is intended to be clamped, (2 ₂ ) is the cutting edge of the cutting part (2) which has the long driving body (2 ₃ ) in the rear.
In (2 ₂ ), the cutting edge (2 ₂₁ ) faces and crosses the receiving edge (2 ₁ ).
(2) receiving blade (2 ₁₎ to rotatably those axes stopped at halved portion of the gap of the substrate (1) so as to constitute the (1 ₁₎ into the engaged locking shaft (9). (1 ₂₎ is received blade Hisetsubutsu the cutlery branches like pocket (2 ₁₎ and (A) at the time of cutting causes precisely localized at the receiving blade (2 ₁₎ (A)
Is to support the blade (2 ₁ ) so that it does not escape. The embodiment of this cutting part (2) is a push-cut type in which an object to be cut is supported by a receiving blade and cut by the cutting blade, but in addition to this, a scissor type or a circular saw blade rotated by power is provided in the driving body. However, the present invention is not limited to the embodiment as long as it is a blade including a fixed blade and a movable blade capable of cutting an object to be cut. (4) is a grasping body for grasping branches and fruits, which is composed of a receiving stand (4 ₁ ) and a pushing stand (4 ₂ ). Specifically, the body part of the interlocking body (6) is attached to the base body (1). And push surface
(4 ₂₁ ) is a cam-shaped presser base (4 ₂ ) with a protruding arc shape, and the interlocking body (6) and presser base (4 ₂ ) receive the base body (1) with the receiving shaft (9). The shaft (9) can be rotated and supported, and the interlocking body (6) is a support shaft (10) provided on the drive unit (2 ₃ ) of the cutting blade (2 ₂ ) with the drive unit (6 ₁ ). What is supported, and the above-mentioned bearing shaft between the interlocking body (6) and the press base (4 ₂ ).
Engage the spiral spring (5) with (9) and press one end of the spring (5)
(4 ₂ ), the other end on the opposite side is also locked to the press base (4 ₂ ) while the spring (5) is compressed by the interlocking body (6), and the base (1) is received. pushing surface of the blade (2 ₁₎ in the receiving surface (4 ₁₁₎ cradles becomes concave arc surface accompany the concave arc-shaped edges of the pocket (1 ₂₎ (4 ₁₎ the tail stock (4 ₂₎ (4
₂₁ ) which is locked with a stop pin to face it, (11) is an arc-shaped guide elongated hole (11 ₁ ) centered on the receiving shaft (9) in the interlocking body (6)
Leading elongate protrusions that slides (11 ₂₎ the leading elongate hole (11 ₁₎ in the leading elongate hole (11 ₁₎ into engagement with the facing surfaces of the interlocking member (6) of the tail stock (4 ₂₎ and Hole
A spring restricting portion that restricts the excessive release of the elastic force of the compressed spring (5) that is slidably engaged with (11 ₁ ).

In the gripping body (4) of the embodiment, the press base (4 ₂ ) supported by the base body (1) rotates with respect to the receiving base (4 ₁ ) in conjunction with the cutting operation of the cutting blade (2 ₂ ). Both of them move toward and away from each other to grasp and release the object to be cut (A) between the pedestal (4 ₁ ) and the pusher (4 ₂ ). examples of the cutting edge by other other interlocking member (2 ₂₎ the switching thereof between conjunction with tail stock (4 ₂₎ is actuated cradle (4 ₁₎ to the cutting operation of the
It is not limited to the embodiment as long as (A) can grasp and release the grasp. Further, the spring (5) of the embodiment is a spiral spring, but other springs may be used.
_The present invention is not limited to the embodiment as long as ₂ ) can be biased toward the pedestal (4 ₁ ). (8) is a cutting portion due to a contracting force provided between the base body (1) and the driving body (2 ₃ ) of the cutting blade (2 ₂ ).
In (2), the cutting blade (2 ₂ ) is a coil-shaped return spring designed to keep the blade open with respect to the receiving blade (2 ₁ ), but this spring is not limited to the above, but the cutting portion (2) In the above, it is sufficient that the cutting blade (2 ₂ ) can maintain the opened state of the cutting blade (2 ₂ ) with respect to the receiving blade (2 ₁ ). Driving bodies fixed pulley on the base (1) in the embodiment as operating the (2 _3), pull the movable pulley is provided thereto or the like to the driver ₍₂₃₎ cord (7)
There is a device that tries to exert a strong pulling force by engaging with, but if the pulling string (7) is directly connected to the driving body (2 ₃ ) if a strong pulling force is generated. good short driver ₍₂₃₎ is not intended to be limited to the embodiments as long as a strong tensile force is applied to.

[Effect of device]

According to this invention, the cut object such as a branch or a fruit to be cut off from the tree starts to be cut at the cutting portion, and at the same time, the gripping body (4) provided in the cutting portion continues to grip the cut object to perform the cutting work. Even if it ends, unless the tension of the drawstring (7) is loosened and the cutting part (2) is released, the grasping of the cut object (A) continues, there is no drop of the cut object due to separation from the trunk, It eliminates the damage caused by falling of the cut object and the fact that the fruits etc. fall to the ground and self-damage those who are engaged in the work under the tree, and also when the separated cut object is pulled down to the ground If the high-branch cutting machine is held on the ground while holding the object to be cut by the holding body (4), the separated branches will not get caught on other branches on the tree and remain accurately and reliably. Can remove branches. Leaving the separated branches on the tree hinders the sunlight and ventilation and hinders the growth of the tree, and if the separated branches die, it causes pests and diseases.Therefore, try to keep the branches on the tree. Must be avoided. Therefore, in the present plan, as described above, there are no branches left on the tree, ventilation is good and sunlight is good, the occurrence of pests and diseases is prevented, and the growth of trees is greatly promoted.

Moreover, the branches of the tree to be pruned have different thicknesses. Therefore, the gripping body (4) for gripping the cut object such as this branch also corresponds to the thickness of the receiving base (4 ₁ ) and the pushing base. The interval of (4 ₂ ) must change without reducing the gripping force. This device uses the interlocking body (6) and the spring (5) provided between the press base (4 ₂ ) and the cutting blade (2 ₂ ) to cut the blade.
Since the object (A) is grasped between the pedestal (4 ₁ ) and the movement of (2 ₂ ), when the cutting of the object (A) starts, the pusher (4 ₂ )
Touches the object to be cut (A) and strengthens the grip as the cutting progresses, but even if the cutting progresses further, the spring (5) contracts and the press base (4 ₂ ) does not move, only cutting. Although the object to be cut is cut off by this, the grasping body (4) strongly holds the object to be cut, so that the object to be cut does not fall off deliberately. In this way,
The gripping interval of the gripping body (4) can be changed according to the thickness of the object to be cut, and the object to be cut can be gripped in the best state. Further, as described above, in the gripping body (4), when the object to be cut is to be gripped, the pressing force is exerted by the elastic force of the spring (5) between the cutting blade (2 ₂ ) and the pressing force (4 ₂ ). (4 ₂ ) The cutting part (2) starts to cut the object to be cut (A) and at the same time strongly presses it against the object to be cut (A) and holds the object to be cut (A) with the pedestal (4 ₁ ). However, since the spring force of the spring (5) that presses this press base (4 ₂ ) cannot be grasped strongly if the force is weak, a spring with a considerably powerful elastic force is necessary for a strong grasp. (5) is required. However, if the spring (5) has a strong resilience,
It is necessary to increase the force applied to the driving body (2 ₃ ) when strongly contacting (4 ₂ ) with the cut object.

Therefore, fatigue is great during long-term pruning and fruit collection work, so in order to reduce the force that actuates the cutting edge (2 ₂ ), the force between the press base (4 ₂ ) and the cutting edge (2 ₂ ) must be reduced. A lever type interlocking body (6) in which one end of the body part is axially fixed to the base body (1) and the other end is engaged with the cutting blade (2 ₂ ) is provided, and the interlocking body (6) and the press base ( 4 ₂₎ Contact with urge toward the spring (5) is provided a spring (5) foot stock (4 ₂₎ by the elastic force in the direction of the cradle (4 ₁₎ having a strong resilient force between The force to move the cutting blade (2 ₂ ) is greatly increased by the lever type interlocking body (6), and the spring (5) that produces a strong elastic force is compressed lightly and the spring (5) generated by compression is the switching was (a) positive確且reliably pressed toward the tail stock (4 ₂₎ with a strong elastic force to the cutlery (a) having the features of the can grip.

[Brief description of drawings]

Drawing is a figure which shows the Example of this invention, FIG. 1 is the front view which omitted the handle rod of the high branch cutting machine, FIG. 2 is the side view which omits the handle rod of the high branch cutting machine, and FIG. 3 is III-III. A line sectional view, FIG. 4 is a view for explaining separation of an object to be cut, and FIG. 5 is a view for explaining a related state of a cutting portion, an interlocking body, and a holding body. 1: substrate, _{1 1:} gap _{1 2:} Pocket 2: cutting section, _{2 1:} receiving blade, _{2 2:} cutting edge 2 _{3: driver,} 2 _{11, 2 21:} blade portion, 3: Esao 4: gripping member, _{4 1:} cradle, _{4 2:} tail stock 4 _{11: abutment, 4 21:} pressing surface, 5: spring 6: interlocking member, _{6 1:} driver, 7: drawstring 8: return spring, 9: Receiving shaft, 10: Support shaft 11: Spring restricting part, 11 ₁ : Guide long hole 11 ₂ : Protrusion

Claims (1)

[Scope of utility model registration request] 1. A substrate arranged side by side with the substrate (1) at the tip of the substrate (1).
A cutting edge is provided on the blade (2 ₁ ) provided on the side of ( ₁ ) and the blade line of the blade (2 ₁ ).
Place the cutting edge (2 ₂ ) on the receiving blade (2 ₁ ) so that the blade lines of (2 ₂ ) face each other.
The cutting edge (2 ₂ ) is locked by the (9) so as to be rotatable with respect to the receiving shaft (9), and the cutting edge (2 ₁ ) and the cutting edge (2 ₂ ) form the cutting portion (2). Cutting part
In the case where the base body (1) of (2) is installed on the rod tip of a long handle rod (3), either one of the front side or the back side of the receiving blade (2 ₁ ) of the cutting section (2) The blade of the receiving blade (2 ₁ ) and the receiving surface (4 ₁₁ ) of the cutting object of the pedestal (4 ₁ ) of the gripping body (4) that supports the cutting object so that they are flush with each other. Secure the pedestal (4 ₁ ) and remove the cutting edge (2 ₂ )
_With the supporting surface on the same side as the supporting surface of the pedestal (4 ₁ ) provided in ( ₁ ),
(2 ₂ ) opens and closes the presser base (4 ₂ ) with respect to the receiving base (4 ₁ ) by opening and closing the receiving blade (2 ₁ ). ), The interlocking body (6) is rotatably engaged with the receiving shaft (9), and the engaging portion of the interlocking body (6) with the receiving shaft (9) and the drive section ( 6 ₁ ) to the cutting blade (2 ₂ ) driver (2 ₃ )
The interlocking body (6) is rotatably engaged with the support shaft (10) provided on the support shaft (10), and further, the interlocking body (6) that overlaps with the supporting surface of the cutting edge (2 ₂ ) described above. ) on the surface in the, pushing surface (4 ₂₁ receiving blades (receiving surface of the cradle (4 ₁₎ 2 ₁₎ (4 ₁₁₎ and the foot stock (4 ₂₎₎ and it is facing, and the receiving surface
Gripping body (4) whose push surface (4 ₂₁ ) can approach and separate from (4 ₁₁ )
Foot stock (4 ₂₎ tail stock (4 ₂₎ in the bearing shaft (9) of engaged so as to be rotated with respect to bearing shaft (9), receiving shaft of receiving blades (2 ₁₎ (9) Shall support the cutting edge (2 ₂ ), the interlocking body (6) and the press base (4 ₂ ), and furthermore, the presser foot (4 ₂ ) and the drive section (6 ₁ ) of the interlocking body (6) A spring (5) for urging the pressing surface (4 ₂₁ ) of the pressing base (4 ₂ ) toward the receiving surface (4 ₁₁ ) of the receiving base (4 ₁ ) is provided between them. A high branch cutting machine.