KR200469796Y1

KR200469796Y1 - Pruning shears

Info

Publication number: KR200469796Y1
Application number: KR2020120005117U
Authority: KR
Inventors: 전미진
Original assignee: 전미진
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-11-05

Abstract

The present invention relates to electric pruning shears that enable efficient pruning by allowing pruning shears to be operated electrically or manually.
A support blade body having a support blade on the side and a cutting blade body having a cutting blade so as to cut a branch in cooperation with the support blade by a hinge pin, and coupled to protrude rearward of the support blade body and the cutting blade body. A pair of handles to be installed at the rear end of the support body and the cutting blade body to restore the support blade and the cutting blade after cutting the branch, and generating power to be worn by the worker at the rear of the handle connected to the cutting blade body. A wire which mechanically moves the cutting blade body mechanically by receiving the power of the means, a guide roller which is held by a roller shaft inside the roller box formed at the rear of the handle connected to the supporting blade body to guide the wire, and the worker It is characterized by comprising a switch that can operate the power generating means worn by the electric pruning shears.

Description

Electric pruning shears {PRUNING SHEARS}

The present invention relates to electric pruning shears, and more particularly, to the provision of pruning shears that can be operated by electric power, as well as improved to be operable by hand to perform efficient work.

Generally, cuttings such as pruning shears or chainsaws for pruning of trees to help grow fruit trees, ornamental water or other trees while helping to grow fruitful, ornamental or other trees in fruit farming, landscaping or forestry. Tools are used.

The most widely used among the cutting tools as described above is pruning shears, and the configuration of the pruning shears will be described with reference to FIG. 5.

Generally used pruning shears (1), a support blade body (3) having an arc-shaped support blade (2) indented on the side and protruded so as to cut branches in cooperation with the support blade (2) A cutting blade body 5 having an arc-shaped cutting blade 4 is coupled to the hinge pin 6 to freely move.

Behind the support blade body 3 and the cutting blade body 5 is fixed to the handle (7) so that the operator can hold the hand by hand and apply the pressure required for cutting, between the handle (7) after the cutting blade (2) and the cutting blade (4) is configured by installing a restoring spring (8) to be restored to the open state.

Since the above-described conventional scissors are manually made by the operator's grip, fatigue occurs on the operator's hand, resulting in a problem that the efficiency of the battery operation is lowered.

In the case of general tree pruning, it is necessary to take time when it is time, but especially in the case of fruit tree work, it is concentrated in the winter, so it is not easy to open and close hands while using pruning shears. And blisters on the fingers.

In order to solve such a problem, various types of electric pruning shears have been developed and used in recent years. As a representative example, the utility model registration No. 20-0416812 is as follows.

Electric pruning shears to which the prior art is applied are connected to the rear of the pedestal and the motor is operated by an external power source, a fixed blade connected to the front of the pedestal via a fixing bracket, and a pin structure on the fixed blade side. A movable blade rotatably combined with a rotary blade, a rotating disc rotatably mounted on an upper portion of the pedestal, one end of which is connected to one side of an edge of the rotating disc, and another end of which is connected to a rear side of the movable blade, and the pedestal; Is connected to the rear of the gear transmission device for transmitting the power of the motor to the rotating disk.

Electric pruning shears of such a configuration are relatively large and heavy in weight compared to commonly used pruning shears, and are not suitable for battery work requiring long hours of work, but are not easy to handle and cause more worker fatigue. Becomes

In addition, since the cutting of the branch is performed solely by electric movement, when the branch is large, it is not possible to cut it frequently, and in this process, even if the worker tries to add power by hand, Since there is no handle at all, various problems occur such that the efficiency is significantly lower than that of the battery operation performed by hand.

In this invention, as designed to solve the above problems, the support blade body having a support blade on the side and the cutting blade body having a cutting blade to cooperate with the support blade to cut the branches by hinge pins And a pair of handles coupled to protrude to the rear of the support body and the cutting blade body, and installed at the rear of the support body and the cutting blade body to restore the support blade and the cutting blade after cutting the branches; Rollers are formed in the roller box formed at the rear of the handle connected to the cutting blade body and the wire to move the cutting blade body mechanically by receiving the power of the power generating means worn by the worker to the rear of the handle connected to the cutting blade body A guide roller which is held by the shaft and guides the wire, and a power generating means worn by the operator on the handle. A switch capable of moving and constituting electric pruning shears;

It is possible to achieve the purpose of enabling efficient pruning by allowing pruning shears to be operated electrically or manually.

The present invention not only makes it possible to cut branches by electric movement, but also can cut branches by manual operation, so it can be used for both electric and manual operation, so that efficient battery work is possible regardless of the thickness of the branches, and with ease of handling It is devised to have various effects such as to reduce the fatigue of the worker.

1 is a perspective view of an exploded state showing the electric pruning shears to which the technique of the present invention is applied.
Figure 2 is a cross-sectional configuration of the coupled state showing the electric pruning shears applied technology of the present invention.
3 is a configuration diagram of a switch operating state as a use state of the electric pruning shears to which the technique of the present invention is applied.
Figure 4 is a configuration of the switch non-operational state as a use state of the electric pruning shears to which the technique of the present invention is applied.
Figure 5 is a block diagram showing a general pruning shears to which the prior art is applied.

Hereinafter, with reference to the accompanying drawings, a preferred configuration of the present invention for achieving the above object is as follows.

1 is a perspective view of an exploded state showing the electric pruning shears to which the technique of the present invention is applied, FIG. 2 is a cross-sectional configuration diagram showing the electric pruning shears to which the technique of the present invention is applied, and FIG. 4 is a configuration diagram of a switch operating state as the use state of the electric pruning shears, and FIG.

The electric pruning shears 100 to which the technique of the present invention is applied include a bearing blade body 102 having an arc-shaped bearing blade 101 inserted into the ship side, and in cooperation with the bearing blade 101 to cut branches. The cutting blade body 104 having an arc-shaped cutting blade 103 protruded so as to be freely coupled to the hinge pin 105.

Rear of the support blade body 102 and the cutting blade body 104 by fixing a pair of handles (106, 107) so that the operator can hold the hand by hand and apply the pressure required for cutting, the support blade body 102 At the rear of the cutting blade body 104) and the cutting blade body 104, a restoring spring 109 is installed so that the supporting blade 101 and the cutting blade 103 can be restored to an open state.

Power cutting is connected to the rear end of the handle 107 connected to the cutting blade body 104 is connected to the wire 111 that receives the power of the power generating means 110 that can be worn on the worker's waist or shoulder Of course, the manual cutting by the operator can be performed in parallel.

The power generating means 110 may be operated by receiving battery power to be used in various types such as a motor or a small hydraulic generator or a small internal combustion engine.

The operation of the power generating means 110 is a mechanical scissors 100 or a switch or a sensor provided in the power generating means 110 to transfer the power of the power generating means 110 to the pruning shears 100 mechanical It will be natural to make the operation work.

The rear end of the handle 106 is connected to the support blade body 102 is further provided with a guide roller 112 so that the wire 111 does not interfere with giving the cutting force by pulling the handle 107.

The guide roller 112 is maintained by the roller shaft 114 in the roller box 113 formed integrally with the rear end of the handle 106, the roller box 113 containing the guide roller 112 is covered (115).

In addition, any one handle (106, 107) is provided with a switch (SW) for operating the power generating means 110 worn by the operator, by the power of the power generating means 110 by the selection of the switch (SW) This operation allows the pruning shears 100 to operate.

The switch W connects the negative contact 121 to one of the handles 106 and 107, and the positive contact 120 is mounted to the one of the handles 106 and 107 via the insulating material 125.

The positive contact point 120 has a predetermined length, and the contact bar 126 protrudes toward the restoring spring 109 to hold the handles 106 and 107 so that the restoring spring 109 and the contact bar 126 are in electrical contact with each other. When the handles 106 and 107 are released, the restoring spring 109 and the contact bar 126 are spaced apart, thereby electrically shorting and stopping the operation.

Looking at the process of performing a battery operation using the electric pruning shears 100 applied the technology of the present invention as described above are as follows.

With the power generating means 110 required to operate the pruning shears 100 on the worker's waist or shoulders, holding the pruning shears 100 with one hand and performing the pruning operation as usual. Just do it.

The cutting blade 104 performs a selection or periodic opening / closing operation with respect to the support blade body 102 constituting the pruning shears 100, thereby forming a branch located between the support blade 101 and the cutting blade 103. Will be cut.

In this case, the operator can operate the power generating means 110 by operating the switch SW provided in the handles 106 and 107 of the pruning shears 100.

Looking at the operation of the process of cutting the branch in detail as described above, when the power generating means 110 operates to pull the wire 111, the guide roller 112 installed in the roller box 113 provided at the rear of the handle 106 After the wire is wound around the wire groove 116 formed in a spiral shape, the wire 111 connected to the rear end of the other handle 107 is pulled and the handle 107 is brought into proximity with the other handle 106.

Then, the cutting blade body 104 connected to the handle 107 is rotated about the hinge pin 105 to move in the direction of the support blade body 102, located between the support blade 1010 and the cutting blade 103. Eggplant is cut.

Of course, after the branch is cut, the handle 107 and the cutting blade body 104 are returned to their original positions by the restoring spring 109 installed at the rear of the support and the cutting blades 102 and 104.

By repeating the operation as described above to cut the branches to perform the battery operation, in this process, if the size of the branches is too thick to cut only by the power of the power generating means 110, the operator by hand to handle the handle (106,107) By holding the grip force to generate a large force with the power generating means 110 is to be able to easily cut the branches.

Of course, in the controller including the power generating means 110, when the operation of the switch (SW) is applied to the original state by the restoring spring 109 after the support blade 101 and the cutting blade 103 is operated once It would be natural to have a built-in control program that stops after only one cycle of returning.

The present invention as described above, when the amount of battery operation is small, it is possible to perform the battery operation of the branch manually using only the pruning shears 100 without connecting the power generating means 110, the power generating means ( By connecting 110, it is possible to easily carry out a large amount of battery work, as well as the power generating means 110 and the operator's hand grip is devised to have various advantages such as efficient cutting of thick branches. .

100; Pruning shears
101; Standoff
102; Base Body
103; Cutting blade
104; Cutting blade body
106,107; handle
110; Power generating means
111; wire
112; Guide roller
113; Roller box
116; Wire groove
SW; switch

Claims

A support blade body 102 having a support blade 101 on the side;
Coupling the cutting blade body (104) having a cutting blade (103) with a hinge pin (105) so as to cooperate with the supporting blade (101) to cut a branch;
A pair of handles (106,107) for protrudingly coupled to the back of the support body (102) and the cutting blade (104);
A restoring spring 109 installed at the rear of the support blade body 102 and the cutting blade body 104 to restore the support blade 101 and the cutting blade 103 after the branch is cut;
A wire 111 mechanically moving the cutting blade body 104 by receiving power from the power generating means 110 worn by the worker at the rear of the handle 107 connected to the cutting blade body 104;
A guide roller 112 which is maintained by the roller shaft 114 inside the roller box 113 formed at the rear of the handle 106 connected to the support blade body 102 to guide the wire 111;
The handles 106 and 107 are provided with a switch (SW) for operating the power generating means (110) worn by the operator and constitutes electric pruning shears;
The switch (SW), the negative contact (121) for connecting to any one of the handle (106,107);
A positive contact point 120 having one of the handles 106 and 107 via an insulating material 125;
The contact bar 126 is connected to the positive contact point 120 and is drawn toward the restoring spring 109 to hold the handles 106 and 107. Electric pruning shears characterized in that.