JPH0728607B2 - Extendable high branch scissors - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high branch scissors in which scissors supported at the tip of a tubular elongated handle are opened and closed by an operating lever at hand, the tubular elongated handle having the scissors at the tip. The front pipe body supported and the rear pipe body provided with the operation lever at the rear end are separately formed, and the front pipe body and the rear pipe body are connected to each other so that the distance between them can be adjusted. The present invention relates to a highly expandable and scissor scissors in which the length of a handle is adjustable.

[0002]

2. Description of the Related Art Conventionally, high branch scissors are operated by operating an operating lever provided on one end side of a tubular elongated handle so that scissors provided on the other end side of the tubular elongated handle can be attached to a rod, a wire or the like. It is possible to remotely cut the branches of fruits or the like at a high place or at a remote place by remotely controlling them through the driving force transmission member. It is well known that such high branch scissors are so-called expandable and highly expandable scissors that can be operated on the ground by adjusting the length of the tubular long handle according to the degree of distance to the object to be cut. There is.

By the way, in this type of conventional high branch scissors, both the tubular elongated handle and the driving force transmitting member are separately formed into two or more constituent members. It is usual to join and separate the respective components of the force transmission member.

[0004]

However, in the case where both the members of the tubular elongate handle of the high branch scissors and the driving force transmitting member are joined and detached from each other in this manner, the individual members of the both members are individually removed. It is complicated and troublesome to adjust the length and length of the high branch scissors because it has to be disassembled, adjusted for length, and then reassembled. There is a problem that it is difficult to freely adjust the length of the high branch scissors for the cut object according to the situation.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and at the time of adjusting the length suitable for the distance to the object to be cut, it is possible to provide a highly expandable and retractable scissor scissor capable of extremely easily and swiftly performing joint detachment and length adjustment operation. The purpose is to provide.

[0006]

An expandable and retractable high branch scissors according to the present invention comprises a front tube body 2 having scissors 1 supported at its tip, and a rear tube body 3 having an operation lever 4 attached at its rear end. To form a tubular elongated handle 5 that can be inserted and removed from each other, and connect the front tubular body 2 and the rear tubular body 3 to each other by a relay body 6 so that they can be detachably attached and inserted into the tubular elongated handle 5. The front portion of the front driving force transmitting member 7 is connected to the movable blade 8 of the scissors 1, and the rear end portion of the rear driving force transmitting member 9 is connected to the movable gripping portion 20 of the operating lever 4, respectively. The overlapping portion 13 formed by the partial driving force transmitting member 7 and the rear driving force transmitting member 9 is connected by a joint 27 fixed to this portion, the front pipe body 2 or At least one of the rear tube bodies 3 is provided with several through holes 11 at appropriate positions in the longitudinal direction at predetermined positions, and the relay body 6 is provided with the through holes 11. A pressure actuating portion 12 is mounted, and the pressing actuating portion 12 is penetrated through the through hole 11 to constrain the front tube body 2 and the rear tube body 3 at positions in the longitudinal direction corresponding to a desired expansion / contraction length and press the same. It is characterized in that the actuating portion 12 is opposed to the joint 27 so as to press-lock both the driving force transmitting members 7 and 9.

[0007]

When the length of the handle of the expandable scissors according to the present invention is adjusted, the front tube body 2 and the rear tube body 3 are longitudinally moved by the pressing operation portion 12 which is inserted into the through hole 11. The position of is constrained, and also
The front driving force transmission member 7 and the rear driving force transmission member 9 are in a state of being press-locked by the pressing operation portion 12 facing the joint 27 provided in these overlapping portions 13, but the pressing operation portion 12 is By performing the pressing operation, the pressing operation portion 12 is released from the through hole 11, and the restraint is released so that the front tube body 2 and the rear tube body 3 can freely move in the longitudinal direction.
Further, at the same time when the pressing operation portion 12 is released from the through hole 11, the pressing locks of the front driving force transmitting member 7 and the rear driving force transmitting member 9 are released, and the tubular elongated handle 5 and the driving force transmitting, respectively. The member is kept in a freely stretched state.

Next, the front pipe body 2, the rear pipe body 3 and the front drive body are mutually driven by an amount corresponding to the height and distance of the object to be cut in pruning and fruit collecting work of tall trees and fruit trees. The force transmission member 7 and the rear driving force transmission member 9 are pulled out or stored. When the length adjustment operation of the entire lengths of the tubular elongated handle 5 and the driving force transmitting member is completed, the pressure of the pressing operation portion 12 is released again to thereby cause the tubular elongated handle 5 to be the front tubular body 2 and the rear portion. The tube body 3 can be connected to the relay body 6 again. That is, the front tube body 2 and the rear tube body 3 have through holes 11
By inserting the pressure actuating portion 12 into the, the movement in the longitudinal direction is restricted, and the overall length of the tubular elongated handle 5 is restricted.

At the same time, the front driving force transmitting member 7 and the rear driving force transmitting member 9 are again pressed and locked by the pressing operation portion 12 facing the overlapping portion 13,
The length of the handle on the high branch scissors is maintained at a desired length, and a series of adjustment operations are completed. After that, like the usual high branch scissors, the stem of the fruit, which is the object to be cut, and the branch at a high place are inserted between the movable blade 8 and the fixed blade 14. Next, in this state, by closing the operation lever 4, it becomes possible to cut the object to be cut between the movable blade 8 and the fixed blade 14 of the scissors 1.

[0010]

As is apparent from the above description, the expandable high branch scissors according to the present invention includes the front tube body 2, the rear tube body 3, the front drive force transmitting member 7, and the rear drive force transmitting member 9. Since each of them is joined and detached by one-touch operation of the pressing operation portion 12 provided on the relay body 6, as in the conventional case, the joint and detachment of the tubular elongated handle 5 and the driving force transmitting member are individually performed. Because it can be expanded and contracted without performing
The length and length of the high branch scissors suitable for the distance to the object to be cut are remarkably shortened and reduced to reduce the time and labor required for the operations of joining and detaching the tubular long handle 5 and the driving force transmitting member and adjusting the length. Can be obtained very easily and quickly,
Furthermore, since it is possible to cut objects at high places from the ground without the need for foot joints such as ladders and steps, work is safe,
In addition to being easy to move, even when not in use, the tubular elongated handle 5 and the driving force transmitting member can be stored in any desired length by shortening them regardless of the length. It has the effect of being convenient for transportation.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show an embodiment of an expandable and retractable high branch scissors according to the present invention. FIG. 1 is a partially cutaway front view of the entire scissors, and FIG. 2 is a relay body and front and rear tubes. FIG. 3 is a perspective view showing a connection relationship with the body, FIG. 3 is a sectional view showing a state in which the overlapping portions of the front and rear tubular bodies and the front and rear driving force transmitting members are respectively restrained and press-locked by the relay body, and FIG. FIG. 5 is a sectional view of the joint in FIG. 3, and FIG. 5 is an exploded perspective view of FIG.

In these figures, 5 is a tubular long handle made of aluminum pipe material and having a length of about 170 to 190 cm. The tip end of the tubular long handle 5 has a keyhole in cross section. It has been deformed to a flat shape. Then, the base portion of the fixed blade 14 of the scissors 1 is attached to the flat portion 15 on one side by bolts, and the driving force for the front portion which is inserted into the tubular elongated handle 5 from the insertion portion 16 on the other side. The transmission member 7 can be taken out. The front end of the front driving force transmission member 7 is pivotally attached to the base of the fixed blade 14 so that it can be opened and closed.
It is connected 18 to the base end of the movable blade 8 thus formed.

A fixed grip portion 19 is provided at the base of the tubular elongated handle 5.
And an operating lever 4 composed of a movable grip 20 and
One of the fixed grips 19 has a mounting portion 21 formed at the tip.
It is fixed to the base end of the tubular elongated handle 5 via the, and the other movable gripping part 20 is pivotally attached 22 to the abdomen of the fixed gripping part 19 at the base part. A distal end of the front drive force transmitting member 7 is connected to a bent portion of the movable gripping portion 20, and the movable gripping portion 20 resists a spring 24 installed so as to bias the fixed gripping portion 19 freely. It is becoming more attractive.

The tubular elongated handle 5 is divided into a front tube body 2 having scissors 1 supported at its tip and a rear tube body 3 having an operation lever 4 attached to its rear end. The front pipe body 2 and the rear pipe body 3 are made of two-stage pipe materials having different diameters so that they can be inserted into and removed from each other. The front tube body 2 and the rear tube body 3 respectively have ridges 25 and 26 formed in the circumferential surface and extending in the longitudinal direction, and by engagement of these ridges 25 and 26, Although they are mutually restrained in the rotational direction, they can be moved only in the axial direction, that is, the entire length of the tubular elongated handle 5 can be expanded and contracted, and the front tubular body 2 and the rear tubular body are 3 is connected by a relay body 6 so as to be freely detachable.

On the one side of the front tube body 2, a plurality of circular through holes 11 are provided at appropriate positions in the longitudinal direction at equal intervals. The front driving force transmitting member 7 and the rear driving force transmitting member 9 are made of strip-shaped thin steel plates, respectively, and the front end portion of the front driving force transmitting member 7 and the tail end portion of the rear driving force transmitting member 9 are formed. Only, the rod and the wire are integrally fixed so that they can be easily connected to the scissors 1 and the operating lever 4, respectively. Further, the tail end portion of the front driving force transmission member 7 and the tip end portion of the rear driving force transmission member 9 are formed with overlapping portions 13 and are connected by a joint 27. ,
In other words, the joint 2 is attached to the tip of the rear driving force transmission member 9.
7 is fixed by rivets 38, 38.

As shown in FIGS. 2 and 3, the relay body 6 has a substantially pipe shape, and is fitted with the front pipe fitting portion 28 and the rear pipe body 3 into which the front pipe body 2 is fitted. A metal fitting 31 having a rear tubular body fitting insertion portion 29 for insertion, a through hole 30, and a recess 35, and a pressing operation portion 12 mounted in the recess 35 are provided. The pressing member 12 is housed in the recess 35 of the metal fitting 31 and is pivotally supported by the support shaft 32.
3, the lever 33 is integrally fixed to the distal end, and has a protruding rod 33a that can penetrate the through hole 30 and the through hole 11 of the front tube body 2, and a handle portion 33b at the base end. And the thrust bar 33a of the lever 33 is normally
The front drive force transmission member 7 and the rear drive force transmission via the joint 27 by the elastic force of the spring 37 interposed between the front end of 3 and the band 36 fixed to the metal fitting 31. The member 9 can be pressed and locked.

The joint 27 has front and rear insertion parts 34a, 3 for inserting the front driving force transmitting member 7 and the rear driving force transmitting member 9.
4b provided with a synthetic resin main body 34, a pressing plate 40 opposite to the front end of the rear driving force transmission member 9, and a leaf spring 3
9 and 39, and the front end portion of the rear driving force transmission member 9,
The pressing plate 40 and the plate spring 39 integrally fix the rivet 38 in a sandwich shape. The leaf spring 39 is
As shown in FIG. 4, the lower side has an arcuate curved shape so that the rear end of the front drive force transmitting member 7 inserted into the joint 27 can be sandwiched by contact pressure between the leaf spring 39 and the bottom of the main body 34. It is formed and faces the front driving force transmission member 7.

In the present embodiment, the lever 33 is provided on one side of the tubular elongated handle 5, but it is provided on both sides within the scope of the invention, such as being provided on both sides due to the balance of force or damage to parts. Of course, it can be changed within.

However, in the length adjusting operation of the handle of the high branch scissors, the displacement of the longitudinal position is restrained by the pressing actuating portion 12 in which the front tube body 2 and the rear tube body 3 are inserted into the through holes 11. The front driving force transmitting member 7 and the rear driving force transmitting member 9 face the joint 27 provided in the overlapping portion 13, and the spring force of the spring 37 is biased. The handle 33b of the lever 33 is in a state of being pressed and locked by the pressing operation unit 12.
Against the elastic force of the spring 37,
By pushing until it escapes from the front tube 2,
The restraint is released so that the rear tube body 3 can freely move in the longitudinal direction. Further, at the same time when the pressing actuating portion 12, that is, the protruding rod 33a escapes from the through hole 11, the pressing lock of both the front portion driving force transmitting member 7 and the rear portion driving force transmitting member 9 is released, and the tubular elongated handle is provided. 5 and the driving force transmission member are kept in a freely expanded and contracted state.

Next, the front tube 2, the rear tube 3, the front driving force transmitting member 7 and the rear driving force transmitting member 9 are pulled out or stored in an amount corresponding to the height and distance of the object to be cut. Done. When the length adjustment operation of the overall length of the tubular elongated handle 5 and the driving force transmission member is completed, the pressing operation unit 1 is again activated.
2. That is, by releasing the pressing of the handle portion 33b of the lever 33, the front tubular body 2 and the rear tubular body 3, which are the tubular elongated handles 5, can be connected to the relay body 6 again. That is, the front tube body 2 and the rear tube body 3 are pressed into the through hole 11 by the pressing operation part 1
When 2 is inserted, the movement in the longitudinal direction is restricted, and the overall length of the tubular elongated handle 5 is restricted. At the same time, the front end of the rear tube body 3 is in contact with the step portion 41 provided on the metal fitting 31 in advance, and at the same time, the joint 27 integrally fixed to the tip of the rear drive force transmitting member 9 is formed. Although it is in a state of just facing the lower position of the protruding rod 33a of the pressing operation portion 12, the joint 27 is pressed and locked by the lowering of the protruding rod 33a, and the entire length of the driving force transmitting member is restricted.
This completes a series of adjustment operations for the length and length of the Takaedashi scissors.

In the present embodiment, the front driving force transmitting member 7 is provided with several notches 7a at appropriate positions in the longitudinal direction at predetermined positions on its left and right sides, and when the high branch scissors are expanded and contracted. Protrusions 40a provided at the central portions on the left and right sides of the pressing plate 40 of the joint 27 face the notches 7a to allow the pressing plate 40 to descend and to prevent the front driving force transmitting member 7 from moving in the longitudinal direction. The gap is definitely zero. Further, as is clear from FIG. 4, the bottom surface of the main body 34 of the joint 27 is provided with a recess 43 between the projections 42, 42 arranged in the front and rear, and the front drive force transmitting member facing the recess 43 is formed. Since the portion 7 is kept in a state of being separated from the bottom surface of the main body 34 with a certain distance, the notch 7a of the front driving force transmission member 7 is erroneously not opposed to the protrusion 40a, That is, the front driving force transmission member 7 is
Even if it is pressed by a, it will be buffered by the recess 43, and the joint 27, the front drive force transmitting member 7, the pressing operation part 12
Care is taken not to damage each part such as. Further, the rear end portion of the front driving force transmission member 7 is bent into a hook shape 7b that can be locked to the main body 34, and the front driving force transmission member 7 is formed.
It is designed to function as a retainer.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of the entire expandable and retractable high branch scissors according to the present invention.

FIG. 2 is a perspective view showing a connection relationship between a relay body and front and rear tubular bodies.

FIG. 3 is a cross-sectional view showing a state in which the overlapping portions of the front and rear tubular bodies and the front and rear driving force transmitting members are respectively restrained and press-locked by the relay body.

4 is a cross-sectional view of the joint in FIG.

FIG. 5 is an exploded perspective view of FIG.

[Explanation of symbols]

1 Scissors 2 Front Tube Body 3 Rear Tube Body 4 Operating Lever 5 Cylindrical Long Handle 6 Relay 7 Front Driving Force Transmission Member 7a Notch 7b Hook 8 Movable Plate 9 Rear Driving Force Transmission Member 11 Through Hole 12 Pressing Working part 13 Overlapping part 14 Fixed blade 15 Flat part 16 Insertion part 17 Pivoting 18 Connection 19 Fixed blade holding part 20 Movable gripping part 21 Attachment part 22 Pivoting 23 Connection 24 Spring 25 Ridge 26 Ridge 27 Splice 28 Previous Part tube fitting insertion part 29 Rear part tube fitting insertion part 30 Through hole 31 Metal fitting 32 Support shaft 33 Lever 33a Push rod 33b Handle part 34 Main body 34a Insertion fitting part 34b Insertion fitting part 35 Recessed part 36 Band metal 37 Spring 38 Rivet 39 Plate Spring 40 pressing plate 40a protrusion 41 step 42 protrusion 43 recess

Claims (1)

[Claims] 1. A front tube body 2 having scissors 1 supported at its tip,
A tubular elongated handle 5 that can be inserted into and removed from the rear tubular body 3 with the operation lever 4 attached to the rear end is formed, and the front tubular body 2 and the rear tubular body 3 are joined by a relay body 6. The front drive force transmitting member 7 inserted into the tubular elongated handle 5 is detachably connected to the movable blade 8 of the scissors 1, and the rear drive force transmitting member 9 is attached to the rear end of the operating lever 4. The movable gripping portions 20 are respectively connected to each other, and the overlapping portion 13 formed by the front driving force transmitting member 7 and the rear driving force transmitting member 9 is fixed to this portion by a joint 27. The front pipe 2 and the rear pipe 3 are provided with several through holes 11 at predetermined positions in the longitudinal direction at predetermined positions, and the relay body 6 is pressed. The portion 12 is mounted, and the pressing operation portion 12 is penetrated through the through hole 11 to form the front pipe body 2.
Also, the rear tube body 3 is constrained to a position in the longitudinal direction corresponding to a desired expansion / contraction length, and the pressing operation portion 12 is connected to the joint piece 2.
Stretchable high-branch scissors characterized in that both driving force transmitting members 7 and 9 are pressed and locked so as to oppose to each other.