JP2004242527A - Scissors for high branch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide scissors for a high branch with which any branch can be cut and held regardless of the thickness of the branch even at the base side (the vicinity of a pivot shaft) of a scissors part increased in cutting power and holding power. <P>SOLUTION: The scissors for a high branch have the following parts: scissors parts each comprising a fixed blade and a movable blade body pivotally joined to the tip part of an expandable stick body; an operation part operating the movable blade body; a fixed branch bearing part 41 provided at the side face of a fixed blade body 21 along the curved blade edge of the fixed blade body; a movable branch nipping part 42 provided with a branch nipping face 43 to the fixed branch receiving part at the movable blade body 22 and turnably mounted on the movable blade body while pivotally joined 45 at the blade tip part; and a spring 44 resistively energizing against the circular movement of the branch nipping face going away from the fixed branch receiving part. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to high branch scissors provided with a branch holding mechanism for holding a cut branch.
[0002]
[Prior art]
As is well known, the Takae scissors are provided with a scissor portion formed of a fixed blade and a movable blade that are pivotally connected at the tip of the telescopic bar, and the scissor portion is connected to the base via the movable blade and a transmission rod to form the scissors. An operation unit for operating is provided.
[0003]
Further, as the high branch scissors, there is also known a device provided with a branch pinching mechanism for holding a cut branch as it is (Patent Documents 1 and 2).
[0004]
The Takae scissors disclosed in Patent Document 1 inserts two support shafts provided on the back surface of a branch sandwiching plate adjacent to a blade edge into and out of a base protruding and fixed to a side surface of a movable blade body, The compression spring is modified between the base and the branch sandwiching plate, and the cutting branch is clamped and held by the fixed branch receiving portion attached to the fixed blade.
[0005]
Further, in the Takashige scissors disclosed in Patent Document 2, the branch pinching portion is formed by a leaf spring having a guide portion at one end, and the leaf spring is attached at a position substantially on a pivot shaft of the scissor portion. From the front edge, then folded back near the edge of the blade edge and extended rearward again, and the other end is slidably inserted into the guide portion in a state of being overlapped with the one end, so that a substantially closed loop is formed. The fixed branch receiving portion and the branch sandwiching portion hold the cutting branch by pressing.
[0006]
[Patent Document 1]
Japanese Utility Model Publication No. 54-120452.
[Patent Document 2]
JP-A-9-9782.
[0007]
[Problems to be solved by the invention]
The above-described conventional branch pinching mechanism of the high branch scissors has a configuration in which a branch pinching surface of a movable branch pinching portion moves in parallel (Patent Document 1) or moves in a direction in which the distal end side opens (Patent Document 2).
[0008]
By the way, cutting a thin branch and holding a branch does not cause much problem, but when a thick branch is cut, when the branch pinching surface moves in parallel, the cut branch and the branch pinching surface are in point contact with each other, When an unexpected force acts on the cutting branch, such as when the cutting branch comes into contact with another branch or is blown by the wind, the holding of the branch may be easily released. Further, in the branch pinch where the distal end side moves open, when the cutting branch is cut and held at the distal end side, the shearing force and the retaining force are weak, and the shearing force and the retaining force increase toward the root side (the one closer to the pivot axis). Since the movement of the side branch sandwiching portion in the opening direction is restricted, the cutable thickness of the branch at the position is limited, and the thick branch is cut and held on the cutting edge side.
[0009]
Therefore, the present invention proposes a high branch scissors capable of cutting and holding a branch at the base side of the cutting blade even if the branch is thick.
[0010]
[Means to solve the problem]
The scissors scissors according to the present invention is a scissors scissor comprising a scissor portion formed of a fixed blade and a movable blade connected at the tip of a telescopic rod, and an operating portion for operating the movable blade at a base portion. A fixed branch receiving portion is provided on a side surface of the fixed blade along the receiving blade edge of the fixed blade body, a movable blade body side is provided with a branch pinching surface facing the fixed branch receiving portion, and a pivotal edge is provided at a cutting edge portion. A movable branch clip portion rotatably attached to the movable blade body, and a ridge for biasing the branch clip surface against rotation away from the fixed branch receiving portion. It is.
[0011]
Therefore, the branch is inserted as much as possible between the opened blade bodies, the branch is cut by the operation of the operating unit, and the movable branch pinch is rotated, so that the branch pinch does not interfere with the cutting. After the cutting, the pressure is held by the fixed branch receiving portion.
[0012]
Embodiment
Next, an embodiment of the present invention will be described. The overall basic configuration is the same as that of the conventional Takae scissors, which comprises a telescopic rod 1, a scissor portion 2 and an operation portion 3, and a scissor portion 2 provided with a branch holding mechanism 4.
[0013]
The telescopic rod 1 is a double cylindrical body composed of an inner cylindrical body 11 and an outer cylindrical body 12. The telescopic rod body 1 can be freely inserted and removed so that it can be expanded and contracted. , 12 are provided with an adjusting unit 14 for performing the telescopic fixing operation. Further, a fixed blade body 21 of the scissors portion 2 described later is connected to the distal end of the inner cylindrical body 11 and a saw mounting portion 15 is provided on a side surface of the distal end.
[0014]
The scissors portion 2 includes a fixed blade 21 and a movable blade 22. The fixed blade 21 includes a blade having a receiving curved shape, and a base thereof is connected and fixed to a distal end of the inner cylindrical body 11. Reference numeral 22 denotes a half-moon-shaped blade, which is pivotally connected to the fixed blade 21 (pivot shaft 23) and has a base end connected to the transmission rod 13.
[0015]
The operation unit 3 includes a fixed handle 31 and an operation handle 32. The fixed handle 31 is connected and fixed to the lower end of the outer cylinder 12, and the operation handle 32 is pivotally connected to the fixed handle 31 to be rotatable. The transmission rod 13 is connected to a predetermined position of the operating handle 32, and the opening and closing operation of the operating handle 32 opens and closes the scissor portion 2. Further, a lock portion 33 for holding the operation handle 32 and keeping the scissors portion 2 closed is provided.
[0016]
The branch holding mechanism 4, which is a feature of the present invention, includes a fixed branch receiving portion 41 and a movable branch holding portion 42, and the fixed branch receiving portion 41 receives the fixed blade 21 on a side surface of the fixed blade 21. It is provided along the curved blade edge, and the curved receiving surface is formed in fine irregularities perpendicular to the blade edge.
[0017]
The movable branch pinching portion 42 has a branch pinching surface 43 corresponding to the curved receiving surface of the fixed branch receiving portion 41 in a state where the scissors portion 2 is fully closed, and the peak surface opposite to the branch pinching surface 43 is the movable blade 22. The shape is almost the same as the peak. That is, the blade edge portion of the movable blade body 22 protrudes from the branch pinching surface 43 of the movable branch pinching portion 42.
[0018]
The movable branch sandwiching portion 42 has a leaf spring body 44 attached to the peak surface, pivots (pivot shaft 45) at the tip of the movable blade body 22, and attaches to the outer surface of the movable blade body 22. A fulcrum portion body 46 protruding like an eaves on the front upper surface of the leaf spring body 44 is fixed to the movable blade body 22.
[0019]
Further, a guide shaft 47 is inserted into the guide long groove 48 in parallel with the pivot shaft 45 on the base side (closer to the pivot shaft 23) of the movable branch pinching portion 42, and is protruded toward the movable blade body 22 to be movable. The blade body 22 is provided with an arc-shaped guide long groove 49 centered on the pivot shaft 45 in which the guide shaft 47 is accommodated.
[0020]
Thus, the lock portion 33 is released, the branch A to be cut is inserted as close as possible between the opened blade bodies 21 and 22, and the operating portions (the fixed handle 31 and the operating handle 32) are gripped by scissors. The branch A is cut by opening and closing the part 2. During the cutting, the branch A is pinched by the fixed branch receiving part 41 and the movable branch pinching part 42. At the end of the cutting, the movable branch pinching part 42 rotates and one end is suppressed by the fulcrum part body 46. When the leaf spring body 44 is bent, a clamping force is generated, and the branch A after cutting is firmly held. The movable range of the movable branch holding portion 42 is the total range of the lengths of the guide long grooves 48 and 49.
[0021]
【The invention's effect】
As described above, according to the present invention, the scissor portion of the high branch scissors is provided with a branch pinching mechanism. In particular, the mechanism is provided with a branch pinching surface facing the fixed branch receiving portion on the movable blade side, and pivoting at the cutting edge portion. In addition to providing a movable branch pinch portion attached to the movable blade body so as to be rotatable and rotatable, the branch pinch surface is provided with a spring that urges against rotation that moves away from the fixed branch receiving portion, Even if the branches are thick, it is possible to provide high branch scissors capable of cutting and holding the branches at the base side of the cutting blade and realizing effective holding of the cut branches.
[Brief description of the drawings]
FIG. 1 is an overall view of an embodiment of the present invention.
FIG. 2 is a perspective view of the main part.
FIG. 3 is an exploded view of the main part.
FIG. 4 is an explanatory diagram of the usage state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Telescopic rod body 11 Inner cylinder body 12 Outer cylinder body 13 Transmission rod 14 Adjustment part 15 Saw attaching part 2 Scissor part 21 Fixed blade body 22 Movable blade body 23 Axis 3 Operation part 31 Fixed handle 32 Operation handle 33 Lock part 4 Branch holding mechanism 41 Fixed branch receiving portion 42 Movable branch holding portion 43 Branch holding surface 44 Leaf spring body 45 pivot shaft 46 fulcrum unit 47 guide shaft 48, 49 guide long groove

Claims (2)

At the tip of the telescopic rod, a scissor portion comprising a pivotally connected fixed blade and a movable blade is provided, and at the base, an operating section for operating the movable blade is provided. A fixed branch receiving portion is provided along the curved blade edge of the receiving blade body, and a branch pinching surface is provided on the movable blade body facing the fixed branch receiving portion. A high branch scissors characterized by comprising a movable branch pinch portion mounted on a blade body and an ridge for biasing the branch pinch surface against rotation away from the fixed branch receiving portion. 2. The high branch scissors according to claim 1, wherein a leaf spring body is attached to a peak surface of the movable branch pinching portion, and a leading end of the leaf spring body is connected to the movable blade body.

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