JPH0883A - Long shears for high branch - Google Patents

Abstract

PURPOSE:To enable safe performance of works by making it possible to handle by one hand and preventing the fingers from being nipped between a stationary grip piece and a mobile grip piece. CONSTITUTION:Guard units 9 and 10 for preventing the fingers 24 from slipping and coming off are attached to one 6 of mobile grip pieces of the handle lever 7 of long shears for high branch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has scissors attached to the tip of a cylindrical elongated handle, and an operating lever for the scissors is provided at the rear end of the cylindrical elongated handle, that is, on the hand side, and a shaft stem of fruit is provided. It relates to long scissors for high branches that cut off branches at high altitudes.

[0002]

2. Description of the Related Art In general, this type of cylindrical elongated scissors has a cylindrical elongated handle c which is operated by operating an operating lever provided at one end of the cylindrical elongated handle c as shown in FIG. The opening and closing of the scissors provided on the other end can be remotely controlled via a driving force transmission member d such as a rod or a wire, and cutting of a fruit branch or the like at a high place or at a distance can be performed.

By the way, a conventional operating lever at hand has a pair of a fixed gripping piece a and a movable gripping piece b provided at the rear end of a cylindrical elongated handle c.
Since it is necessary to rotate the movable gripping piece b with respect to the fixed gripping piece a, a gap f having a sufficient space is provided between the base e of the fixed gripping piece a and the movable gripping piece b. there were.
In other words, the movable gripping piece b is simply a bar that is appropriately curved so that it can be easily gripped with fingers, and if it is dare to say, the receiving part g is slightly ahead of the gripping portion of the movable gripping piece b. The degree of holding is Sekiyama, and there is no regulation part for preventing the fingers holding the movable gripping piece b from slipping off.

[0004]

However, in the case of operating with the rod-shaped movable gripping piece b having no such restricting portion, an operator who uses the long scissors for a high branch generally has a shaft of a fruit. It is usual to neglect the attention of the hand side because the scissors at the tip are obsessed with the scissors in order to cut off the handle and branches of the high places. Therefore, even if the receiving portion g is provided as described above, the fingers gripping the movable gripping piece b unintentionally slide forward and move to the base e of the fixed gripping piece a. A dangerous situation occurs in which a finger is caught in the space f between the gripping piece b, and the finger is injured or suffers significant pain, which reduces the work efficiency after that or becomes impossible. It is difficult to secure so-called safe work, on the other hand, on the other hand, if you focus on securing safe work and work while paying close attention to your work, the work efficiency will decrease, of course. In the case of children and women who are not accustomed to workers, problems such as further dangers have occurred.

Further, since the conventional movable gripping piece b has a single rod shape in which the fingers easily slip off the operating lever as described above, the fingers easily slip off and it is impossible to operate with one hand. In particular, when operating on trees at high altitudes, it is often desirable to be able to operate with one hand because there are many cases where the hand is closed due to physical safety or belongings, but there is a problem that this request cannot be met. .

An object of the present invention is to provide long scissors for a high branch, which solves the above problem by an extremely simple means.

[0007]

DISCLOSURE OF THE INVENTION Long scissors for a high branch according to the present invention have a scissors 4 composed of a fixed blade 2 and a movable blade 3 attached to the distal end of a cylindrical elongated handle 1, and An operating lever 7 including a fixed gripping piece 5 and movable gripping pieces 6, 26 is provided at the rear end of the handle 1, and the driving force for inserting the movable blade 3 and the operating lever 7 into the tubular elongated handle 1. In the long branch scissors for a high branch, which is connected via the transmission member 8 and operates the movable blade 3 by opening and closing the operation lever 7, at least the movable gripping piece 6, 26 of the operation lever 5 is movable. Control parts 9, 10, 11 for preventing slipping of fingers 24 gripping the gripping pieces 6, 26.
Is provided.

Incidentally, "at least the movable gripping piece 6, 26"
Means that the restriction portions 9, 10, 11 are provided on both the fixed gripping piece 5 and the movable gripping pieces 6, 26, and the restriction portions 9, 10, 11 are provided only on the movable gripping pieces 6, 26. In addition to the case of the annular shape 10, for example, the shape of the restricting portions 9, 10, 11 is, for example, a case where any one portion of the annular shape 10 is cut open to form a bifurcated shape 11.
Various changes can be made within the scope of the present invention.

[0009]

When the long scissors for a high branch according to the present invention are used, first, hold the operating lever 7 at hand, and in this state, open the scissors 4 including the fixed blade 2 and the movable blade 3 in advance. In between the fixed blade 2 and the movable blade 3, the stem of the fruit, which is the object to be cut, or the branch at a high place is inserted.

Next, with the object to be cut inserted,
When the operating lever 7 is closed, the driving force transmitting member 8 has its base portion connected to the movable gripping pieces 6, 26 moved rearward, and accordingly, is connected to the tip of the driving force transmitting member 8. The scissors 4 which close the fixed blade 2 and the movable blade 3 can fulfill the function of cutting an object to be cut inserted between the fixed blade 2 and the movable blade 3.

When the cutting action on the object to be cut by the scissors 4 is completed, the fixed gripping piece 5 and the movable gripping pieces 6, 26 are separated by opening the operation lever 7, and the tip end of the driving force transmitting member 8 is reached. The movable blade 3 connected to the section can be rotated to return the scissors 4 to the initial open state, one cycle of operation is completed, and the same operation is repeated thereafter.

In the long scissors for high branches according to the present invention described above, it should be noted that at least the movable gripping piece 6, 26 of the operating lever 7 has the restricting portion 9 for preventing slipping of the fingers to be gripped. , 10 and 11 are provided, the restricting portions 9, 10, 11 are not limited to the case where the operator operates with both hands, but also when the operator operates with one hand, even if an attempt is made to cause the fingers 24 to slip out. At this time, the slipping transition of the fingers 24 is restrained so as to be accommodated in the restricting portions 9, 10, 11 and the base portion 13 of the fixed gripping piece 5 and the movable gripping pieces 6, 2 are locked.
It is possible to prevent the situation in which the fingers 24 are sandwiched in the space 12 between the control unit 6 and the control unit 9,
The fingers 24 serve as a support by 10 and 11, and one-handed operation can be performed without difficulty, which is convenient for use, and the worker can perform safe and smooth work safely.

[0013]

As is apparent from the above description, the elongate scissors for a high branch according to the present invention is restrained and restricted by the restricting portion provided on the movable gripping piece so that the sliding movement of the fingers for gripping the operating lever can be prevented. Therefore, due to the extremely simple structure, the operator need only pay attention to the scissors at the tip without paying close attention to the operating lever at hand, and can operate with one hand. Therefore, especially when working on trees at high altitudes, even if there is a case where the hands are blocked due to personal safety or belongings, safe work can be secured without danger and work can be performed. This has the effect of significantly improving efficiency.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1 is a partially cutaway front view showing the entire long scissors for a high branch according to the present invention, and FIG. 2 is a part of an operating lever of FIG. FIG. 3 is a partial front view showing another mode of the operating lever, and FIG. 4 is a partial front view corresponding to FIG. 3 showing the mode of the conventional operating lever.

In these figures, reference numeral 1 designates a cylindrical long handle made of a pipe material (in FIG. 1, the middle portion is omitted near the tip, but it has a length of about 170 to 190 cm). The tip of the shank 1 is modified so that its cross section presents a keyhole. Then, on one flat portion 14, the base of the fixed blade 2 of the scissors 4 is attached by bolts, and from the other insertion portion, such as a wire or rod inserted into the tubular elongated handle 1 The driving force transmitting member 8 can be taken out, and the tip of the driving force transmitting member 8 has the fixed blade 2
Movable blade 3 pivotally attached 10 so that it can be opened and closed with respect to the base of
It is connected 11 to the base end of.

At the rear end of the cylindrical elongated handle 1, there is provided an operation lever 7 consisting of a fixed gripping piece 5 and a movable gripping piece 6, and one fixed gripping piece 5 has a base 13 formed at the tip. Is fixed to the rear end of the cylindrical elongated handle 1 with a screw 15, and the other movable gripping piece 6 is pivotally attached 16 to the abdomen of the fixed gripping piece 5 at the base.

As shown in FIG. 2, the movable gripping piece 6 is formed with an annular restriction portion 9 (10) having a finger hole 17 into which a finger 24 can be inserted. In other words, the restricting portion 10 has a shape such that the gripping portion 18 provided on the side facing the fixed gripping piece 5 is closed in a ring shape, and is inserted into the finger-holding hole 17 so that the movable gripping piece 6 is inserted. It has such a shape as to prevent the fingers 24 grasping the finger from slipping and shifting so as not to extend into the space 12 formed between the base portion 13 of the fixed gripping piece 5 and the movable gripping piece 6. .

The end of the driving force transmitting member 8 is connected 19 to the bent portion on one side of the movable gripping piece 6, so that the movable gripping piece 6 can be opened with respect to the fixed gripping piece 5. It is urged so as to be attracted against a spring 20 installed so that the movable gripper piece 6 has one side,
A stop piece 21 that adjusts the opening angle of the operation lever 7 is pivotally mounted so as to be rotatable.

The tip of the stop piece 21 is fixed to the fixed gripping piece 5.
Of the two step portions 22, 23 formed in two steps in front and rear, which are provided at opposite positions on the base portion 13 side of the
From 23, it can be used as a detached state. That is, when the movable gripping piece 6 is pulled toward the fixed gripping piece 5 and the stop piece 21 is locked to the front step 22 as shown in the drawing, the closed state of the scissors 4 can be maintained. Further, if the stop piece 21 is set to an angle at which the stop piece 21 can be locked to the front step portion 23, the opening angle of the movable gripping piece 6 with respect to the fixed gripping piece 5 is limited, and both the pieces 5, 6 of the scissors 4 are limited.
The opening angle of the scissors is made small, and the scissors 4 can be opened and closed within that range.

Further, when the stop piece 21 is pulled down from the state shown in the figure, it is not possible to engage with the step portions 22 and 23 and the above limitation is removed, so that the movable gripping piece 6 can be opened to the maximum extent. It will be. Then, in this way, the scissors 4 having the above-described structure are provided with the stop piece 21 and the step portion 2.
The movable gripping piece 6 in a state of being separated from the facing position of 2
When the gripping and releasing operation is repeatedly performed on the fixed gripping piece 5, the movable blade 3 performs a scissoring action in relation to the fixed blade 2 via the driving force transmission member 8, and therefore attempts to cut. By adjusting the position of the stop piece 21 according to the thickness of the branch, it is possible to prevent unnecessary fatigue in the operation of the operation lever 7.

In addition, on the upper surface near the rear end of the movable gripping piece 6, there are provided a protrusion 28 protruding from the upper surface and a striking portion 27 made of a spherical elastic body attached on the protrusion 28. Even if the movable gripping piece 6 is strongly hit against the fixed gripping piece 5 by the hitting portion 27, the impact generated thereby can be alleviated.

The fixed gripping piece 5 is clamped so that the operating lever 7 is sandwiched between the thumb and the four fingers of the right hand finger 24, and when the scissors 4 is lifted upward to perform a desired cutting action, the receiving portion is held. The center of gravity of the whole long scissors for high branches is received by the portion 25, and in the present embodiment, by the cooperation action of the receiving portion 25 of these fixed gripping piece 5 and the restricting portion 9 of the movable gripping piece 6, Further, the elongate scissors for high branches can be strongly received, and the situation in which the fingers 24 slide into the void 12 can be completely eliminated, and the operation by the right hand fingers 24 can be performed easily and easily.

Further, as shown in FIG. 3, the regulating portion 1 of another aspect is provided.
In the case of the movable gripping piece 26 with 1, namely,
Even in the case of the long scissors for a high branch in the case where a part of the restricting portion 11 is opened in a bifurcated shape and four fingers are inserted between the bifurcated shape and gripped, the same as in the case of the embodiment. The function of preventing slipping can be exhibited, and the same effect can be achieved with one-handed operation and safety.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing the entire elongate scissors for a high branch according to the present invention.

FIG. 2 is an enlarged perspective view showing a portion of an operation lever of FIG.

FIG. 3 is a partial front view showing another mode of the operating lever portion of the elongate scissors for high branches in FIG.

FIG. 4 is a partial front view corresponding to FIG. 3 showing a mode of a conventional operation lever.

[Explanation of symbols]

1; tubular long handle, 2; fixed blade, 3; movable blade, 4; scissors,
5: fixed gripping piece, 6, 26: movable gripping piece, 7: operating lever, 8: driving force transmitting member, 9, 10, 11 restricting portion,
12: void, 13: base, 14: flat, 15: screw,
16; Pivot attachment, 17; Finger hole, 18; Grip site, 19; Connection, 20; Spring, 21; Stop piece, 22, 23; Step, 24; Finger, 25; Receiving part, a; Fixation Gripping piece,
b: movable gripping piece, c: tubular elongated handle, d: driving force transmitting member, e: base of fixed gripping piece, f: void, g: receiving portion.

Claims (3)

[Claims] 1. A scissor 4 comprising a fixed blade 2 and a movable blade 3 is attached to the tip of a tubular elongated handle 1, and a fixed gripping piece 5 and a movable gripping part are attached to the rear end of the tubular elongated handle 1. An operation lever 7 composed of the pieces 6 and 26 is provided, and the movable blade 3 and the operation lever 7 are connected via a driving force transmission member 8 that is inserted into the tubular elongated handle 1, and the operation lever 7 is opened and closed. In the long branch scissors for activating the movable blade 3, at least the movable gripping pieces 6, 26 of the operating lever 5 are slidable by the fingers 24 gripping the movable gripping pieces 6, 26. Long branch scissors for high branches, which are provided with restricting portions 9, 10, 11 for blocking. 2. The long scissors for a high branch according to claim 1, wherein the restriction portion 10 has a closed annular shape. 3. The long scissors for a high branch according to claim 1, wherein the restriction portion 11 is open in a bifurcated shape.