JP2001120157A - Device for drawing out bird-preventing string or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which is used for drawing out a bird-preventing string or the like, can improve an effect for a string-stretching work, has a small size and is convenient for carrying the device and from which the bird- preventing string or the like can smoothly and stably be unwound. SOLUTION: This device for drawing out a bird-preventing string or the like is provided with a core pipe 2 on whose outer circumferential surface the linear material 1 is wound, and with friction shaft bearings 3.3 for supporting both the end portions of the core pipe in a rubbing state. The device adopts a technical means that the frictional forces of the friction shaft bearings 3.3 for supporting both the end portions of the core pipe stably brake the rotation of the core pipe 2, when the linear material 1 is drawn out and unwound. Thereby, the bird-preventing string for protecting agricultural crops from harmful birds in a paddy field, an upland field, a fruit garden, or the like can simply and smoothly be unwound from the core rod. When the linear material is especially stretched over a long distance, it can be easily carried out to set the device to a tractor or the like and then draw out and unwind the linear material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention particularly relates to a method for smoothly unwinding a string such as a bird-proof thread (for example, Utility Model Registration No. 3060742) or a long object (hereinafter simply referred to as a bird-proof thread). The present invention relates to a yarn unwinder suitable for use in a yarn feeder.

[0002]

2. Description of the Related Art Conventional bird-proof yarns and the like are commercially available in a form wound around a core rod or the like by a fixed reference length. For this reason, when constructing a bird protection facility by spreading it over fields, etc., hold the core rod wound with bird protection thread, etc., or move it in a support case etc. and move it in accordance with the moving speed. It was necessary to unwind the bird thread and the like. However, it is not easy to quickly build a bird-proofing facility by moving around the fields while paying attention to the feet, and it is difficult to work smoothly, such as entanglement of bird-proofing threads or dropping the bobbin core. Met.

[0003] What is important is that when trying to spread such a bird-proof thread or the like over a long distance in a large site such as a field or an orchard, if the unwinding operation is to be performed quickly, the rotation of the core rod and the The tension balance of bird-proof thread etc. is broken and the behavior is out of order, it gets caught in the nearby plants and facilities, the snare is made on the bird-proof thread etc., it is complicatedly entangled and it can not be unraveled, making work difficult Because.

[0004] Further, when a bird-proofing facility is constructed by unwinding bird-proof thread from a core rod, it is difficult for an operator to move at the same speed because fields, orchards and the like are not flat. . However, when a worker who moves fast is distracted by his feet or has an obstacle, he or she naturally stops or moves slowly. Then, since the winding core rod that has been towed and rotated at the moving speed up to that time is governed by the law of inertia, the conventional rotating speed is maintained and the birdproof thread is continuously unwound. Nevertheless, since the movement of the worker suddenly slows down, the amount of unwound yarn becomes excessive, and the accumulated unwound yarn becomes entangled and cannot be unwound. In that case, the bird's thread in the entangled portion will be cut off and discarded, but at this time, the thread end of the bird's thread etc. that has been stretched normally will be temporarily tied somewhere, It must be joined with the new bird thread end on the core rod that has been cut off.
The cutting and discarding of such entangled threads and the splicing of bird-proof threads after temporarily tying the bird-proof thread ends significantly delay the construction work of bird-proof facilities, and are extremely inconvenient. .

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks.
An object of the present invention is to provide a feeder for bird-proof thread or the like which can smoothly and stably unwind a bird-proof thread or the like, thereby improving the spanning work efficiency, and which is compact and portable.

[0006]

Means adopted by the present inventor to solve the above problems will be described below with reference to the accompanying drawings.

That is, the present invention comprises a core tube 2 having a wire 1 wound around the outer peripheral surface thereof; and friction bearing portions 3.3 for supporting both ends of the core tube 2 in a frictional state. When the linear material 1 is pulled out and unwound, the frictional force of the friction bearings 3 supporting both ends of the core tube 2 is reduced by the friction force of the core tube 2.
The technical means of stably braking the rotation of the motor was adopted.

Further, in order to solve the above-mentioned problems, the present invention provides, in addition to the above-mentioned means, as necessary, a cylindrical core tube 2 having a wire material 1 wound on an outer peripheral surface; Friction bearings 3 rotatably supporting both ends; a plate body disposed on one side of the winding surface of the core tube 2, the friction bearing portion being guided along the winding surface of the core tube 2; A technical means is adopted in which the string long hole 41 is provided with a cover plate portion 4 in which a hole is formed by molding or an oval perforation 41a.

At this time, the cover plate portion 4 is formed integrally with the package P which covers the core tube 2 and the friction bearing portions 3 and 3, and the cover plate portion 4 is provided with a lead wire slot 41 or an oval shape. Perforations 41a may be formed.

In the present invention, a braking force is applied to the core tube 2 due to frictional resistance between the outer peripheral surface of the core tube 2 and the friction bearing portions 3, and the tension of the linear material 1 when unwound is reduced. Become moderate. Also, with a width slightly smaller than the winding width of the linear material 1,
The elongated lead hole 41 formed along the winding surface of the core tube 2 has a payout hole since the contact portion of the linear material 1 does not change constantly and unbalanced to one place during unwinding. Is formed in an oval shape so as to prevent breakage due to local abrasion of the wire and catching of the linear material. Furthermore, the rotation of the core tube 2 causes the linear material 1 to be unwound so as to be always laterally protruded (meaning that the yarn is drawn out in a direction perpendicular to the core tube 2), so that the linear material 1 is not twisted and is smoothly linear. The material 1 can be unwound.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings.

First Embodiment First, an example in which the present invention is applied to a feeder such as a bird-proof thread is shown in FIG. 1, and this will be described as a first embodiment. In the drawing, what is indicated by reference numeral 1 is a linear material, and in this embodiment, a bird-proof thread. As the linear material 1, a multifilament yarn in which a large number of bright (or semi-dull) synthetic fibers are assembled is employed. Reference numeral 2 denotes a cardboard cylindrical core tube. Reference numeral 3 denotes a friction bearing portion, which is made of square cardboard, and has a support hole 31 having a diameter substantially equal to the outer diameter of the core tube 2 in the center thereof.
Both ends of the core tube 2 are slidably supported. Reference numeral 4 denotes a covered plate portion. The covered plate portion 4 has a width slightly smaller than the winding width of the linear material 1 and extends along the thread winding surface of the core tube 2 in a long slot 41 of a lead. Has been established. Reference numeral 4P denotes a cover plate portion opened in the package P, and the cover plate portion 4P
An elongated hole 42 formed in a shape similar to that of the elongated hole 41 is opened. Reference numeral 5 denotes an insertion hole through which a support member A described later is inserted. The insertion hole 5 has a diameter smaller than the inner diameter of the core tube 2. The cover plate portion 4P and the insertion hole 5 are integrally formed with the package P that covers the core tube 2 and the friction bearing portions 3.3.

That is, in the core rod formed by winding the linear material 1 around the core tube 2, both ends of the core tube 2 are supported in a frictional state by the friction bearings 3. At this time, in order to make the tension of the unwound linear material 1 appropriate, the contact area between the core tube 2 and the friction bearing portions 3 is increased to increase the frictional resistance. In the form, the friction bearing portions 3 at both ends are formed by bonding three thick papers.
3 is configured. Further, a cover plate portion 4 is disposed facing one side of the winding surface of the core tube 2, and the cover plate portion 4 is provided with a long lead wire along the winding surface of the core tube 2. 41 is formed by molding.

Then, the part where they are integrally formed is packaged with a package P. The package P is further provided with a covered plate portion 4P that is covered and insertion holes 5 on both side surfaces. The linear material 1 is unwound by being inserted into the elongated wire hole 41 formed in the cover plate portion 4 and the elongated wire hole 42 formed in the cover plate portion 4P and unwound, thereby being laterally projected and twisted. It is sent out sequentially without being performed. In addition, since the elongated lead hole 41 is formed in an oval shape with a width slightly smaller than the winding width of the linear material 1, a portion where the linear material 1 comes into contact constantly changes during unwinding. Since there is no deviation in the location, it is possible to prevent breakage due to local abrasion of the feeding hole and to prevent the linear material from being caught.

[Second Embodiment] The following example in which the present invention is applied to a feeder such as a bird-proof thread is shown in FIG. 2 and will be described as a second embodiment. Guide string slot according to the first embodiment described above
An oval perforation 41a and a perforation 42a of the same shape are engraved in place of the perforation 41 and the elongated lead hole 42.
The same effect is obtained by breaking the "a" and the perforations 42a. The lead wire slot 42a is connected to the lead wire slot.
Since the elongated wire of the covered plate portion 4 is formed in a shape similar to that of the elongated wire 41a, the elongated wire 41 formed by hollowing out the elongated wire 41 allows the linear material 1 to be unwound. In this case, it is possible to prevent a piece remaining on the outer edge after the perforation is broken from interfering with smooth unwinding. When only one side of the linear material 1 is broken in the cover plate portion 4, it can be sealed when not in use, thereby preventing unintentional unwinding. Further, the insertion hole 5 is also cut in a perforated shape so that it can be broken, so that it is completely packaged at the time of sale or storage, so that the contents are not affected.

Further, the linear member 1 can be unwound by inserting the package P through the support member A through the insertion hole 5 (see FIG. 3). Since it is formed with a diameter smaller than the inner peripheral diameter, if the support member A is inserted into the insertion hole 5 and unwound, there is no frictional resistance between the support member A and the core tube 2. It has no effect on the rotation of the pipe 2 and can prevent co-rotation. It is also very effective as a support means when unwinding by fixing at a certain place, or when installing on a tractor and towing tow. It is.

The present invention is generally configured as described above.
The present invention is by no means limited to the embodiment shown in the drawings, and various modifications are possible within the scope of the claims. Etc., and the cover plate portion 4 is
And the insertion hole 5 only needs to be opened at a position that does not affect the rotation of the core rod. Further, the thread unwinder of the present invention is used for a strip-shaped wire such as a tape. In order to prevent the outer edge from being twisted,
May be set to a width equal to or greater than the winding width of the strip-shaped wire, and any of them is within the technical scope of the present invention.

[0018]

As described above with reference to the embodiments,
In the present invention, in a field or orchard, etc., a bird's-eye thread or the like in which a large number of synthetic fibers of bright or semi-dal for protecting agricultural crops from harmful birds such as crows and sparrows is easily and easily drawn from a core rod. It can be unwound smoothly, and especially when it is intended to stretch over a long distance, it can be installed on a tractor or the like, and can be unwound by pulling.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a structure of a first embodiment of the present invention.

FIG. 2 is a perspective view illustrating a structure of a second embodiment of the present invention.

FIG. 3 is a perspective view illustrating an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Linear material 2 Core tube 3 Friction bearing part 31 Bearing hole 4 Covering plate part 41 Lead wire slot 41a Perforated lead wire hole P Package 4P Covered plate part in P 42 Lead wire slot 42a Perforation letter Lead wire slot 5 Insertion hole A Supporting member

Claims (4)

[Claims] 1. A linear tube comprising: a core tube 2 having a linear material 1 wound around an outer peripheral surface thereof; and friction bearing portions 3.3 supporting both ends of the core tube 2 in a frictional state. The feeding of bird-proof thread or the like, characterized in that the frictional force of the friction bearings (3, 3) supporting both ends of the core tube (2) when the material (1) is pulled out and unwound stably brakes the rotation of the core tube (2). vessel. 2. A cylindrical core tube 2 having a wire material 1 wound around an outer peripheral surface thereof; friction bearing portions 3.3 for supporting both ends of the core tube 2 in a frictional state; A plate body disposed to face one side of the winding surface of
2. A feeder for bird-proof thread or the like according to claim 1, further comprising: a cover plate portion 4 in which a lead wire long hole 41 is hollowed out along the winding surface of the cover. 3. A cylindrical core tube 2 having a wire 1 wound around an outer peripheral surface thereof; friction bearing portions 3 for supporting both ends of the core tube 2 in a frictional state; A plate body disposed to face one side of the winding surface of
2. A feeder for bird-proof thread or the like according to claim 1, further comprising: a cover plate portion 4 having an elliptical perforation 41a engraved on the thread winding surface thereof. 4. A cover plate portion 4 is integrally formed with a package P which covers the core tube 2 and the friction bearing portions 3.3, and the cover plate portion 4 is provided with a lead wire slot 41 or an oval sewing machine. 4. The dispenser according to claim 1, wherein the eye 41a is formed.