JPH07203767A - Scissoring tool - Google Patents

Abstract

PURPOSE:To provide a scissoring tool in which the neck pole can be extended from or contracted easily to the base pole at the neck part of the main pole and the expansion and contraction can be performed easily at the extending and contracting part as well as bendable in both direction of the front and back faces the scissor, when a continuous driving pole for oprating the cutting work by this scissor tool extends or contracts, as the neck pole does. CONSTITUTION:This scissor is the one for cutting branches of high trees where the continuous driving pole 5 operating the cutting work of the scissor 2 at a neck 11 of the long main pole 1 and the neck part 11 of the main pole 1 are freely extended and contracted toward both directions of the front and back faces of the scissor 2. Under such a mechannism, the inclination angle between the main pole 1 and the shaft axis is made variable by fitting the joint 12 of the main pole 1 as well as a joint 6 which can extend and contract on both sides on the front and back faces of the scissor 2, to the extending and contracting part of the continuous driving pole 5 opposing to the joint 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scissors tool such as a high-branch cutting tool which allows the neck portion of a main rod to bend and stretch.

[0002]

2. Description of the Related Art There is an invention of Japanese Utility Model Publication 5-5869 in which the neck portion of a main rod bends and stretches.

In the above-mentioned prior art, since the scissors can be tilted only to one side with respect to the main rod, the cutting direction of the scissors into the object to be cut in pruning work such as trees. For example, when the one facing from the right side to the left side is directed from the left side to the right side, the scissors body may be rotated together with the main rod to change the direction of the blades of the scissors body. The hand holding the drive lever that opens and closes the blade of the scissors near the side of the rod has changed, and for example, the one that was operating the drive lever with the right hand, which is a hand, operates the drive lever with the left hand by changing the cutting direction of the scissors. It becomes necessary to reduce the gripping force of the drive lever, the cutting ability of the scissors, the hand fatigue, and the bending of the connecting rod that transmits the power of the drive lever to the scissors. The bent part of this connecting rod. Means for supporting at Jo of the scaffold,
Even if the contact area between the connecting rod and the bearing is large and the contact is strong and the resistance is increased, the power of the drive lever is lost, the operation of the drive lever becomes heavy and the hand fatigue becomes large. there were. In view of the above, the present invention makes it possible to always operate the drive lever with a hand without changing the hand holding the drive lever, and to reduce the resistance at the bent portion of the connecting rod so that the blade of the scissors can be opened and closed easily. This is to reduce the fatigue of the hand that operates the drive lever.

[0003]

SUMMARY OF THE INVENTION The present invention in order to solve the above problems, the driving connecting rod 5 and Shu杆1 for operating the opening and closing of鋏体2 in the neck portion 1 ₁ of the main lever 1 long in those neck portion 1 ₁ which freely bending and stretching, a joint section 1 ₂ that can bend and stretch toward both the front side of鋏体second main lever 1 back side of both or left side and right side, these joints 1 ₂ by dividing the bending portion of the driving connecting rod 5 facing the as鋏側continuous rod 5 ₁ and the driving lever side communicating rod 5 _2, above鋏側connecting rod 5 ₁ and the driving lever side communicating lever 5 ₂
The joint rod 6 is provided between the scissors body 2 and the scissors body 2 so that the joint rod 6 can be bent and extended in both the front side and the back side of the scissors body 2 or in both the left side surface side and the right side surface side. Toward the front side and the back side of the main body or toward the left side surface and the right side surface of the main rod 1
The angle of inclination with the axis of the can be changed.

[0004]

The scissors body 2 of the present invention has the neck portion ₁₁ of the main rod ₁ and the scissors body 2
Can be bent and stretched in both the front side and the back side, or in the left side and the right side, so that the pruning direction of the scissors body 2 is changed to cut a branch extending in the vertical direction and a branch extending in the horizontal direction. The drive connecting rod 5 for opening and closing the scissor body 2 as well as bending and extending the main rod 1 also connects the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 _2. The joint body 6 provided in the portion to be bent and extended in association with the bending and stretching movement of the main rod 1 can smoothly open and close the scissors body 2 without the movement of the drive connecting rod 5 being hindered by the bending and stretching of the main rod 1. .

In the joint device of the present invention, the joint body 6 provided on the drive connecting rod 5 has a joint portion 4 ₁ at the end of the base 4 on the scissor side connecting rod 5 ₁ side and at the end of the drive lever side connecting rod 5 ₂ respectively. When 4 ₂ has,鋏側continuous rod 5 ₁ this joint 4 _1, the joint 4 _{and second} driving lever side communicating lever
5 ₂ driven from those that bending drives continuous rod 5 bent portion of the driving connecting rod 5 at the two locations when the drive communicates rod 5 from where engaged as freely bending each bending gently bent The connecting rod 5 can be bent without difficulty. That is, a big bend is made.

Furthermore the joint body 6 is provided with a sliding member 7 ₁ and 7 ₂ consisting of a roller or the like on both sides of the base 4 respectively, derivatives facing the sliding member 7 ₁ and 7 ₂ in the main lever 1 of the joint portion 1 ₂ 8 _Since they come into contact with ₁ and 8 ₂ , when the drive connecting rod 5 operates, especially when the drive connecting rod 5 bends and operates, the slide body 7 ₁ or 7 _{2 on} the outside of the bend is the guide 8 ₁ or 8 in _{which 2} to be支受a smooth operation with less resistance.

[0007] The pedestal 4 joints member 6, bending it to loose its original radius than is bendable ones to and joints 4 ₁ when the seat 4 driving communicating rod 5 is bent with 4 _second bent Is what you do.

[0008] Derivatives 8 ₁ and 8 ₂ to induce sliding member 7 ₁ and 7 ₂ can be bent from a flexible material which is resilient, when the eliminated bending moment added thereto on their own original state Since the joints 1 ₂ of the main rod 1 return to the straight state from the bent state at the neck 1 ₁ of the main rod 1, the elastic forces of the derivatives 8 ₁ and 8 ₂ act, and the neck 1 ₁ becomes It returns straight without requiring the hands of workers.

[0009] Derivatives 8 ₁ provided in the joint section 1 ₂ of the main lever 1 and 8
₂ Shu杆1 each at one end 8 ₁₁ and 8 ₂₁ are fixed to Kubi杆1a or Moto杆1b, also ends 8 ₁₂ and 8 ₂₂ on the opposite side of the Moto杆1b or Kubi杆1a derivatives 8 ₁ and 8 ₂ in the Shu杆1 by being sealed movably engaged and bent at the joint portion 1 ₂ with respect to the longitudinal direction of the can, movably engaging to Moto杆1b or Kubi杆1a it is end 8 ₁₂ and 8 ₂₂ can be bent with the joint portion 1 ₂ while moving by being pulled to the side that is fixed derivative 8 ₁ and 8 ₂ in the longitudinal direction of the Shu杆1, also mainly in the opposite When the rod 1 is straightened, the guides 8 ₁ and 8 ₂ are straightened together with the main rod 1 by moving the ends 8 ₁₂ and 8 _{22 in the} opposite direction.

[0010]

EXAMPLE An example of the present invention is a high-branch cutting tool used for pruning tall tree branches, and 1 is a main rod made of a light metal tube such as aluminum having a length of about 2 meters. Although the main rod 1 does not expand and contract in the embodiment, other than that, the main rod 1 can be expanded and contracted, and the scissors body 2 for cutting an object to be cut may be a scissor tool by remote control. May hold something. Further Shu杆1 is separated into the neck rod 1a and Moto杆1b at its neck portion 1 _1, and Kubi杆1a
And the Moto杆1b have articulated section 1 ₂ neck rod 1a may be bent toward the front and back direction of鋏体2 provided on Kubi杆1a,
Moreover joint section 1 ₂ or tightening joint section 1 ₂ setscrew 3 ₁ According to the lock device constituted by the support shaft 3 and the screws 3 ₁ can open from the fixed joint 1 _2. Note Kubi杆Changing the installation position of the joint portion 1 ₂ 1a can also be bent toward the right and left both sides of鋏体2.

The scissors body ₂ is installed on the fixed blade body 2 _{2 so} that the movable blade body 2 ₁ can be freely opened and closed with respect to the fixed blade body 2 ₂ , and the fixed blade body 2 ₂ is fixed to the neck rod 1 a by a core 2 _21. , Movable blade 2 ₁ fixed blade 2 ₂
Is opened and closed by connecting the tip end of the scissors-side connecting rod 5 ₁ of the drive connecting rod 5 to the drive portion 2 ₁₁ by the link mechanism of the movable blade body 2 ₁ , and the drive connecting rod 5 is located inside the main rod 1. At the joint portion 1 ₂ of the main rod 1, the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 ₂ are separated from each other, and the base end portion of the scissor side connecting rod 5 ₁ is the front end portion of the strip-shaped base 4. the joints 4 _1, the driving lever side that each tip portion of the drive lever side communication lever 5 ₂ to the joint portion 4 ₂ of the rear end portion of the base 4 is engaged worn as freely bending and stretching to the pedestal 4 the rear end of the connecting rod 5 ₂ are those installed on the driving lever 9 provided on the rear end portion of the Moto杆1b of Shu杆1. Although the pedestal 4 is made of a thick plate in the embodiment, it may be bent by elastic leaf springs in addition to this. In short, the joints 4 are provided at both front and rear ends of the pedestal. It suffices that it has ₁ and 4 ₂ to which the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 ₂ can be connected. Also,
Of course that the鋏側communicating lever 5 and the driving lever side communicating lever 5 ₂ before and after both ends of the base 4 of the leaf springs may be directly connected so.

7 ₁ and 7 ₂ are sliding bodies 7 ₁ and 7 _{2 formed} of rollers or the like on the pedestal surfaces 4a and 4b corresponding to the front surface and the rear surface of the scissors 2, respectively. 8 ₁ and 8 ₂ are strip-shaped derivatives having elasticity,
It laid between the neck portion 1a and Moto杆1b at the joint portion 1 ₂ of the main lever 1, the end portion 8 of the Kubi杆1a side ₁₁ and 8 ₁₂ stop pin 10 to Kubi杆1a a
₁ and fastened, Moto杆1b side of the end portion 8 ₂₁ and 8 cut notches 8 ₃₁ on the end face at ₂₂ and those denoted by 8 ₃₂ erected to the induction pin 10 ₂ provided on Moto杆1b 8 ₃₁ And 8 ₃₂ engage the joint
Needless to say, it can be bent and stretched together with 1 and ₂ , and it may be a long hole other than the notch. Can travel towards the longitudinal direction moreover the plate surface of derivative 8 ₁ and 8 ₂ along the plate surface of the sliding member 7 ₁ and 7 ₂ pedestal 4 derivatives 8 ₁ abuts 8 ₂ of the pedestal 4 It is a good thing. In the examples, the sliding bodies 7 ₁ and 7 ₂ are rollers, but other sled bodies having a smaller friction coefficient may be used as long as they can smoothly run with respect to the derivatives 8 ₁ and 8 _2. Good. Also the derivative 8 ₁ ,
For 8 ₂ as well, the example is a strip spring made of steel,
In addition to this, a strong plastic plate with elasticity and a sliding body
It may be a steel rope or steel wire that engages with 7 ₁ and 7 ₂ to guide it, in short, as long as it can guide the sliding bodies 7 ₁ and 7 ₂ smoothly, accurately and surely, and further a derivative 8 _1, 8 ₂ derivative 8 ₁ not to fastening also limited to the embodiment of the main lever 1, 8 ₂ is as long as it can bend and stretch with bending joints 1 ₂ Shu杆1.

[0013]

According to a first aspect of the present invention according to the present invention, the joint section 1 ₂ of the main lever 1鋏具, both or left side of the back side鋏体2 and the front side of the鋏体2 and the right side Unlike the conventional one that can be bent in both directions and can only be tilted to one side with respect to the main rod 1, work without cutting the main rod 1 when cutting an object to be cut. There is an effect that the worker can cut the right branch and the left branch of the worker while standing in the same position, that is, the cutting range of the cutting tool can be expanded.

[0014] claims According to the present invention in claim 2, the main joint body 6 of the drive connecting rod 5 to the bending and stretching with bending and stretching of the rod 1 of the base 4 constituting this鋏側communicating rod 5 ₁ side end and the drive lever Side link
The joints 4 ₁ and 4 ₂ are respectively provided at the ends on the 5 ₂ side, and the joints 4 ₁ and 4 ₂ are connected to the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 ₂ at two places. Since it is a joint that bends and extends, the joint body 6 of the drive connecting rod 5 can be easily bent and extended with a large radius without difficulty. The pedestal 4 has sliding bodies 7 ₁ and 7 ₂ on both the front surface side and the back surface side, respectively, which are brought into contact with the guides 8 ₁ and 8 ₂ provided on the joint section 1 ₂ of the main rod 1 to drive them. Rod 5
An effect of reducing the fatigue of the derivative 8 ₁ and 8 operator's hands can be a smooth and fast operation since less induced by frictional resistance ₂ during the operation of.

According to the third aspect of the present invention, when the pedestal 4 is made of a flexible material having elasticity, the pedestal 4 has its articulated portion 4 when the joint body 6 of the drive connecting rod 5 formed by the pedestal 4 bends and extends. ₁ and 4 ₂
At the same time, bending and stretching can be performed without difficulty, and the drive connecting rod 5 can be operated lightly.
Even if the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 ₂ are directly connected, the function of the drive connecting rod 5 as the joint body 6 is not lost and the drive connecting rod 5 is bent with a relatively large radius. There is an effect that can be operated smoothly.

[0016] claims According to the present invention in claim 4, the main in rod 1 of the joint part 1 _2, flexible material and a derivative 8 ₁ and 8 ₂ provided between the neck 1a and the Moto杆1b resilient in the constitution, an effect that the operator can self-reset may not the return operation by the elastic force when the joint section 1 ₂ is returned straight from the bent state.

According to the invention of claim 5, the derivative 8 ₁
In providing the ₈₂ to the joint portion 1 ₂ of the main lever 1, derivative 8 ₁ and 8 ₂
The Although good that it is returned to the original straight state from the bend of the joint portion 1 ₂ as to constitute the above by the leaf spring or the like,
When this is fixedly provided on the neck rod 1a and the base rod 1b, the joint portion
When the 1 ₂ bends, the joints 1 ₂ cannot bend because the derivatives 8 ₁ and 8 ₂ cannot stretch, but in the present invention, one end 8 ₁₁ and 8 of the derivatives 8 ₁ and 8 ₂ cannot be bent. ₂₁ is the neck bar 1a
Alternatively, it is fixedly provided on the base rod 1b, but opposite end portions 8 ₁₂ and 8
₂₂ and the preferably provided movably relative Moto杆1b or Kubi杆1a, since play in this section can take, joint 1 ₂ derivative 8 ₁ be bent and 8 ₂ is floating in this portion bends without interfering with the bending and stretching operation of the joint portion 1 ₂ it can be an effect that the induction of the sliding member 7 ₁ and 7 ₂ as freely bending with the joint portion 1 ₂ can be easily.

[Brief description of drawings]

FIG. 1 is a front view of a scissors tool in which a neck portion of a main rod is broken and an intermediate portion is omitted.

FIG. 2 is an enlarged side view of the joint portion of the main rod.

FIG. 3 is an enlarged front view of the joint portion of the main rod.

FIG. 4 is an enlarged front view of a pedestal portion of the joint body of the drive connecting rod.

FIG. 5 is an enlarged front view of the derivative in the joint body of the drive connecting rod.

FIG. 6 is a view showing a state where the joint portion is bent in the joint portion of the main rod.

FIG. 7 is a schematic view showing a state where the joint portion of the main rod is not bent.

FIG. 8 is a schematic view showing a state where the joint portion of the main rod is bent upward.

FIG. 9 is a schematic view showing a state where the joint portion of the main rod is bent downward.

[Explanation of symbols]

₁ --Main rod 1 ₁ --Neck 1 ₂ --Joint 1a --Neck 1b --Base rod 2 --Scissors 2 ₁ --Movable blade 2 ₂ --Fixed blade 2 ₂₁ --Core 2 ₁₁ -Drive unit 3--Support shaft 4--Pedestals 4 ₁ , 4 ₂ -Joint parts 4a, 4b -Pedestal surface 5 --- Drive connecting rod 5 ₁ --- Scissor side connecting rod 5 ₂ --- Drive lever side connecting rod 6 ──Joint body of the driving rod 7 ₁ , 7 ₂ ─Sliding body 8 ₁ , 8 ₂ ─Derivatives 8 ₁₁ , 8 ₂₁ ─One end 8 ₁₂ , 8 ₂₂ ─Other end 8 ₃₁ , 8 ₃₂ ─Incision 9 ──Drive lever 10 ₁ ─Stop pin 10 ₂ ─Induction pin

Claims (5)

[Claims] 1. A one neck portion 1 ₁ of the driving connecting rod 5 and Shu杆1 for operating the opening and closing of鋏体2 in the neck portion 1 ₁ of the main lever 1 long is freely bending and stretching, the main lever 1 the front side of鋏体2 and the joint portion 1 ₂ that can bend and stretch towards the both of the rear side both directions or left side and right side of the bending and stretching of the drive connecting rod 5 facing these joints 1 ₂ by dividing the part and鋏側continuous rod 5 ₁ and the driving lever side communicating rod 5 _2, front Ren杆5 is鋏体2 between鋏側continuous rod 5 ₁ above and the driving lever side communicating lever 5 ₂ The joint body 6 which can be bent and extended in both directions of the side and the back side or in both the left side and the right side is provided, and the scissors body 2 is provided in both the front side and the back side of the scissors 2 or the left side and the right side. A scissors characterized in that the inclination angle with respect to the axis of the main rod 1 can be changed in both directions on the surface side. 2. The joint body 6 of the drive connecting rod 5 is a scissor side connecting rod of the pedestal 4.
The end on the 5 ₁ side and the end of the drive lever side connecting rod 5 ₂ have joints 4 ₁ and 4 ₂ respectively, and the joint 4 ₁ is provided with the base end of the scissor side connecting rod 5 _1. the joint 4 ₂ which was to be connected to the distal end portion of the drive lever side communication lever 5 ₂ respectively, yet the surface and the back side surface or the left鋏体2 on the front side of鋏体2 of the pedestal 4 surface and surface on the right side landing body each of the base face 4a and 4b of both the base 4 consists of a roller or the like of 7 ₁ and 7 ₂ becomes to protrude is disposed outwardly of the pedestal 4, further base 4 Is one joint 4 _{1 at} the end of the scissors-side connecting rod 5 ₁ and the other joint at the opposite side.
The ends of the drive lever side connecting rods 5 ₂ are connected to 4 ₂ respectively, and the sliding members 7 ₁ of the pedestal surface 4a of the joints 1 ₂ of the main rod 1 and the sliding members 7 ₂ of the pedestal surface 4b face each other. and derivatives 8 ₁ gliding body capable of bending and stretching by being driven by the bending of the joint portion 1 ₂ across Kubi杆1a and Moto杆1b of Shu杆1 to each facing portion
8 ₂ are provided respectively, and one slide body 7 ₁ of the pedestal 4 abuts on the dielectric body 8 ₁ facing it, and the slide body 7 ₂ on the opposite side of the slide body 7 _{1 of the} pedestal 4 faces the dielectric body 8 ₁ The scissors tool according to claim 1, which is in contact with the scissors. 3. The pedestal 4 is made of a flexible material having elasticity, and the pedestal 4 has a joint portion between the scissor side connecting rod 5 ₁ and the drive lever side connecting rod 5 _2.
4 ₁ and 4 or ₂ via the connecting or鋏具of claim 1 or 2, wherein the base 4 is obtained by directly connecting to. 4. The scissors according to claim ₁ , wherein the derivatives 8 ₁ and 8 ₂ are made of a flexible material having elasticity. 5. A derivative 8 ₁ provided in the joint section 1 ₂ of the main lever 1 and 8
_{The reference} numeral ₂ is between the neck rod 1a and the base rod 1b constituting the main rod 1, and one end portion 8 ₁₁ and 8 ₂₁ is fixedly installed on the neck rod 1a or the base rod 1b, and the other end on the opposite side. The portions 8 ₁₂ and 8 ₂₂ are movably installed in the longitudinal direction of the main rod 1 on the base rod 1b or the neck rod 1a.
Alternatively, the scissors according to 4.