JPH0429715Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to long scissors for cutting branches, fruits, etc. at high places.

<Prior Art> The above-mentioned long scissors are of a well-known type in which the scissors are supported at the end of a long handle, and the scissors are opened and closed by operating a lever on the hand side. The handle is constructed so that it can be folded into two stages approximately at the center, making it possible to store it in a compact state.

<Problems to be solved by the invention> However, the bifold pattern described above is time-consuming to fold and stretch, the folding joint is easily damaged, and the length of the pattern cannot be adjusted in the unfolded state. It had some drawbacks.

Therefore, the object of the present invention is to provide long scissors with a handle that can be extended and retracted in a sliding manner.

<Means for solving the problem> A means for solving the above problem is to change the structure of the long scissors by supporting the scissors consisting of a fixed part and a movable part at the tip of a long cylindrical body. , the movable piece is actuated via a conductive member by opening and closing an operating lever on the side of a grip provided at the base of the cylinder, and the cylinder has an outer cylinder and an inner cylinder that is slidable inside the outer cylinder. and a fixing means for temporarily fixing the outer cylinder and the inner cylinder at appropriate positions, and the conductive member is connected to a wire A having one end connected to the operating lever and a wire B having one end connected to the movable part. and an interlocking piece that transmits the force applied to the wire A to the wire B, and the interlocking piece has a hole into which one of the wires A and B is slidably inserted. is rotatably locked in the vicinity of the other end of the wire rods A and B in the longitudinal direction, and by rotating the interlocking piece, the hole of the interlocking piece is inserted into the hole. Tighten the wires A and B.
The two are connected so that they are locked to each other.

<Function> Wire A with one end connected to the operating lever, wire B with one end connected to the movable part of the scissors, and one of the wires A and B is slidably inserted and the wires A and B are inserted. The transmission member, which is composed of an interlocking piece that is rotatably locked to the other, can expand and contract in response to the expansion and contraction of the cylindrical body that is composed of an outer cylinder and an inner cylinder.

Further, when the movable piece of the scissors is operated via the conduction member by opening and closing the operation lever, the outer cylinder and the inner cylinder are fixed at appropriate positions by the fixing means, and the interlocking piece of the transmission member is rotated. As a result, the hole of the interlocking piece tightens the wire rod inserted into the hole, so that the wire rods A and B are locked to each other. That is, 1
The cylindrical body shaped like a book barrel and the conductive member shaped like a single wire can operate the movable piece of the scissors by opening and closing the operating lever.

<Embodiments> Hereinafter, preferred embodiments of the invention will be described in detail by way of example with reference to the drawings. However, the dimensions, shapes, materials, and relative arrangements of the components described in this example are not intended to limit the scope of this invention, unless otherwise specified. It is just an illustrative example.

FIG. 1 is a side view showing an extended state of long scissors according to an embodiment of the present invention. Reference numeral 1 denotes a cylindrical body, which is composed of an outer cylinder 11 and an inner cylinder 12 that is slidable inside the outer cylinder 11. A joint 4 is provided at the joint between the two as a means for temporarily fixing the outer cylinder 11 and the inner cylinder 12. is provided. Further, a grip portion 2 is provided at the base end of the outer tube 11, and scissors 3 are provided at the tip of the inner tube 12, and both are connected by wires A and B.

The grip portion 2 is composed of a fixed lever 21 and a movable lever 22, as shown in FIG. The fixed lever 21 is attached to the proximal end of the outer cylinder 11 via a mounting portion 23 formed at its tip, and is attached to a wing nut 24.
It is provided so as to be rotatable relative to the outer cylinder 11 by loosening it. The base of the movable lever 22 is pivotally attached to the abdomen of the fixed lever 21 by a pin 25, and the base end 26 of the wire A is connected to the bent part.
Furthermore, the movable lever 22 is biased by a spring 27 against the fixed lever 21 to open freely.
Reference numeral 28 denotes a slide piece, and by adjusting the wing nut 28a and sliding it left and right in the figure, the bent piece 28b is brought into contact with the bent part of the movable lever 22, and the opening angle of the movable lever 22 is adjusted. Adjust. That is, by changing the opening angle of this movable lever 22, the opening angle of the above-mentioned scissors 3 can be adjusted. When storing the long scissors, etc., slide the slide piece 28 all the way to the right in the figure. By doing so, the scissors 3 can be closed and kept in a safe state.

The scissors 3 has an inner cylinder 12 with bolts 30, 30 at the base.
It consists of a fixed piece 31 fixed to the top of the tip, and a movable piece 32 pivotally attached to the fixed piece 31 so as to be openable and closable. Furthermore, on the same side surfaces of both the pieces 31 and 32 of the scissors 3, there are clamping bodies 31a and 3 that clamp these shafts when cutting fruits such as apples.
2a is detachably provided. The base end 32b of the movable piece 32 is connected to the tip of the wire B, and is strongly urged in the expansion direction by a coil spring 32c disposed near the base end 32b.

The wires A and B are arranged in parallel, and a connecting portion 5 is provided near the base end of the wire B to connect the wires A and B in a locked state or to allow them to be slidably released.

The connecting portion 5 includes holes 51a and 51b through which the wire rods A and B are inserted in parallel, a plug body 51 which is caulked near the base end of the inner cylinder, and a hole 52a through which the wire rods A and B are inserted in parallel, respectively. , 52b, and a sliding member 52 disposed within the inner cylinder and on the right side of the stopper 51 in the figure so as to be slidable with respect to the inner cylinder 12. Between the plug body 51 and the sliding body 52, there are hemispheres 53 and 54 fitted into the wire B and a coil spring 55.
and an interlocking piece 56 held between both hemispheres 53 and 54.
, located between the plug body 51 and the sliding body 52 and connected to the wire A
A coil spring 57 that is fitted into the coil spring 57 is provided. A spacer 58 and a nut 59 for supporting and fixing the sliding body 52 are provided at the base end of the wire B. The hemispheres 53 and 54 are each fitted into the wire B with their planes facing the slider 52, and are biased toward the slider 52 by a coil spring 55. On the other hand, as shown in FIG. 4, the interlocking piece 56 is entirely a disk with a diameter slightly smaller than the diameter of the inner cylinder 12, and has a notch 56a at one end into which the wire B is inserted, and a notch 56a that is approximately the same as the notch 56a. A hole 56b is provided at an opposing position and into which the wire A is inserted. That is, as shown in FIG. 3, the interlocking piece 56 is arranged so as to be perpendicular to the wires A and B between the hemispheres 53 and 54 with the wire B being sandwiched between the notches 56a and along the length of the wires A and B. The wire A is slidably inserted into the hole 56b. Note that the hole 56b may be a notch extending laterally, and the notch 56a may be replaced by a hole.

The coil spring 57 is fitted into the wire A so that one end is in contact with the stopper 51 and the other end is in contact with the interlocking piece 56 . The coil spring 57 exhibits stronger elasticity than the coil spring 55 described above, and when the long scissors are in the normal state as shown in FIG. 2, the interlocking piece 56 is slid as shown in the same figure. It is pressed in the direction of the moving body 52. (If the elasticity of the springs is arranged in order of strength, it becomes spring 32c → spring 57 → spring 55.) That is, the interlocking piece 56 is tilted in the direction of the sliding body 52 by the coil spring 57. 56 holes 56b tighten and lock the wire A inserted into the hole 56b.

Further, the coil spring 57 moves the movable piece 32a of the scissors 3 to the movable lever 2, as shown in FIG.
2, when the interlocking piece 5 is forcibly closed, the wire B is pushed down toward the proximal end, and the interlocking piece 5
6 moves down in the same direction, the interlocking piece 56 cannot be pressed. That is, the interlocking piece 56 is released from the pressing force of the spring 57, is elastically supported by the other coil spring 56 so as to be orthogonal to the wires A and B, and is inserted into the hole 56b. The wire rod A is made slidable.

The joint 4 includes a male threaded body 41 fixed to the tip of the outer cylinder 11 and a female threaded body 42 fitted into the inner cylinder 12. The male threaded body 41 has a threaded part 41a divided into a plurality of parts in the circumferential direction at the tip, and the threaded part 41a can be tightened with the female threaded body 42 to
The inner diameter of the inner cylinder 12 is compressed inward by being pressed against the inner wall of the female threaded body 42, thereby tightening the inner cylinder 12. That is, the inner cylinder, which slides freely within the outer cylinder 11, is fixed at an appropriate position by tightening the joint 4.

When the long scissors of this embodiment having the above-mentioned configuration are to be expanded or contracted, the joint 4 is loosened and the scissors 3 are forcibly closed by hand or the like. Then, the connecting part 5
is in the state shown in FIG. 3, and since the wire A is released from the fastening of the interlocking piece 56, the wires A and B, the outer tube 11, and the inner tube 12 can freely slide and expand and contract.

When in use, the inner tube 12 is positioned at an appropriate position on the outer tube 11, and the joint 4 is tightened to fix both. Then, the connecting portion 5 is in the state shown in FIG. 2, and the wire rod A is locked with the interlocking piece 56, thereby being connected to the wire rod B in a locked state. As a result, the movable lever 22 of the grip part 2
The movement of the wire A that is pulled in the direction of its proximal end is transmitted to the wire B, which is connected to the wire A in a locked state, and is also transmitted to the movable part 32 of the scissors 3, which is connected to the tip of the wire B. The scissors 3 can be closed by pulling the movable piece 32 in the same direction.

Note that the arrangement of the outer cylinder 11 and the inner cylinder 12 may be reversed, and the relative arrangement of each member in the connecting portion 5 is also the same.

<Effects of the invention> As described above, the long scissors of the present invention have the structure as described above, so when in use, the cylindrical body can be fixed to an appropriate length with a simple operation, and the height of the object to be cut can be adjusted. You can work in a natural posture depending on your needs. Furthermore, when stored, the inner cylinder is stored within the outer cylinder and is reduced in size, so it does not take up much space compared to conventional folding types. Furthermore, since the cylindrical body is expanded and contracted by an outer cylinder and an inner cylinder that slides inside the outer cylinder, the scissors do not break at the folding part unlike conventional products, making the long scissors strong and safe.

[Brief explanation of drawings]

Fig. 1 is a side view showing the long scissors of the present invention in an extended state, Fig. 2 is a cross-sectional view of essential parts showing the scissors and the connecting part in the normal state of the same embodiment, and Fig. 3 is a side view of the long scissors of the present invention showing the connecting part in the normal state. FIG. 4 is a perspective view of the interlocking piece of the same embodiment, and FIG. 5 is a side view of the gripping portion of the same embodiment. It is. 1... Cylindrical body, 2... Gripping part, 3... Scissors, 4...
Joint, 5... Connection portion, 11... Outer cylinder, 12
... Inner cylinder, 21 ... Fixed lever, 22 ... Movable lever, 28 ... Slide piece, 31 ... Fixed part piece,
32...Movable piece, 41...Male screw body, 42...
Female screw body, 51...Plug body, 52...Sliding body, 5
3, 54... Hemisphere, 56, 57... Coil spring, 56... Interlocking piece, 59... Nut, A,
B...Wire rod.

Claims (1)

[Scope of utility model registration request] A pair of scissors consisting of a fixed piece and a movable piece is supported at the tip of a long cylinder, and the movable piece is operated via a conductive member by opening and closing an operating lever on the grip part provided at the base of the cylinder. In the long scissors made as follows,
The cylindrical body is composed of an outer cylinder and an inner cylinder that is slidable inside the outer cylinder, and is provided with a fixing means for temporarily fixing the outer cylinder and the inner cylinder at appropriate positions. It consists of a wire rod A connected to the movable part, a wire rod B whose one end is connected to a movable part, and an interlocking piece that transmits the force applied to the wire rod A to the wire B, and the interlocking piece is either wire rod A or B. One of the wire rods has a hole into which it is slidably inserted, and the interlocking piece is rotatably locked in the vicinity of the other end of the wire rods A and B in the longitudinal direction of the wire rods A and B, and the interlocking piece is rotated. The long scissors are characterized in that the hole of the interlocking piece tightens the wire rod A or B inserted into the hole and connects the wire rods A and B in a mutually locked state.