JP2015229875A - Self-standing fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-standing fence that may be carried and transported easily, and is less likely to collapse when exposed to wind pressure.SOLUTION: A frame 10 is assembled to make a structure that may be disassembled, comprising: a pipe assembly 11 having two vertical pipes connected rotatably to each other with a hinge; two outside vertical pipes 12; four horizontal pipes 13 that connect the upper ends and the lower ends of the outside vertical pipe and the vertical pipe of the pipe assembly; and an L-shaped joint that detachably connects the upper and lower ends of the outside vertical pipe and the vertical pipe of the pipe assembly to both ends of the horizontal pipe. Fitting means is inserted into an insertion hole 20A at four corners of a net 20 and/or a sheet and into an insertion hole at four corners of the frame and is fastened or tied to each other, and then inserted into an insertion hole 20B along the edge of the four sides of the net and/or the sheet and wound around the vertical pipe or the horizontal pipe of the frame, and the two ends are fastened or tied to each other, thereby attaching the net and/or the sheet on the frame in a loosely stretched state.

Description

  The present invention relates to a self-supporting fence, and more particularly to a self-supporting fence that is easy to carry and carry and is less likely to fall down due to wind pressure.

  Brush cutters are often used to cut weeds along roads, parking lots, and parks. This brush cutter transmits the driving force of the engine or motor to the cutter blade and rotates the cutter blade at high speed to mow the weeds. There is a risk that passers-by will be injured and cars will be damaged.

  In addition, the direction in which the worker is facing varies depending on the situation at the work site, and the direction of the stepping stone is not constant, and the stepping stone is not only on the side of the worker but also on the cutting blade that rotates counterclockwise. Depending on how the cutting edge collides with the pebbles, the pebbles will also fly forward and diagonally to the left.

  On the other hand, suspend a belt-like net from a long bar and stand by the side where the mowing assistant is holding the bar and mowing, so that passers-by and cars are protected from stepping stones. A protective net is proposed (Patent Document 1), but requires an assistant for mowing work.

  Further, although a protection net has been proposed that uses a guardrail on the side of the road to stretch the net and protects passers-by and automobiles from stepping stones (Patent Document 2), it cannot be used where there is no guardrail.

  On the other hand, a net is stretched over a horizontally long rectangular frame, a rectangular frame is mounted on the carriage, and it is moved to the place where mowing work is carried out and stood to the side of the mowing work site to protect passers-by and automobiles from stepping stones. A protective net designed to do this has also been proposed (Patent Document 3).

  However, the above-mentioned protective net is intended to prevent stepping stones to the side of the worker, it cannot prevent stepping forward or diagonally forward to the right, and mowing work to avoid the risk of stepping stones The posture of the worker inside is restricted, and the safety of the worker may be impaired depending on the situation of the work site.

  Also, at work sites where dust is generated, such as demolition work and excavation work, the site is covered with a building, and a dust protection sheet is stretched inside the building to prevent the generated dust from scattering around. (Patent Document 4) requires construction of a building, is complicated, and is difficult to apply to a simple work site.

  In contrast, two rectangular frames can be folded and unfolded with hinges, and they can stand independently by being expanded at an angle, and a stepping stone protection net is stretched on the front side of the two rectangular frames. The stepping stones are dropped by colliding with each other, while dust protection sheets are stretched on the back side of the two rectangular frames, and the minute stepping stones and dust that have passed through the eyes of the stepping stone protection net are collided. A self-supporting fence in which dust is dropped has been proposed (Patent Document 5).

Utility Model Registration No. 3149175 JP 2007-37427 A Utility Model Registration No. 3107649 JP 2007-138487 A Utility Model Registration No. 3183984

  However, in the self-supporting fence described in Patent Document 5, if a lightweight pipe such as a vinyl chloride pipe is used to make it light and convenient for carrying and transporting, the self-supporting fence may easily fall down due to wind pressure, If it is made heavy using metal pipes, it is difficult for the freestanding fence to fall down even if it receives wind pressure, but it requires at least two workers to carry it at the work site, and when it is transported to a distant work site, the freestanding fence It is very cumbersome to mount the vehicle on the vehicle, take it off the vehicle after arrival at the work site and carry it to the site.

  In this situation, an object of the present invention is to provide a self-supporting fence that is easy to carry and carry and is less likely to fall down due to wind pressure.

  Therefore, the self-supporting fence according to the present invention prevents scattering of stepping stones, dust, or suspended pieces to the surroundings during mowing work with a brush cutter, concrete / asphalt hanging work, or working in a dust environment. In a self-supporting fence designed to be soundproofed in an environment, a pipe assembly in which two vertical pipes are connected to each other by a hinge, and two outer vertical pipes provided on both outer sides of the pipe assembly Four horizontal pipes connecting between the two outer vertical pipes and the upper ends and lower ends of the vertical pipes of the pipe assembly; and the upper and lower ends of the two outer vertical pipes and the vertical pipes of the pipe assembly; An L-shaped structure that can be assembled and disassembled by an L-shaped joint that is attached to either one of both ends of the horizontal pipe and the other is detachably inserted, and is attached to the outer vertical pipe. A fastener insertion hole is formed in the joint, and it can be self-supporting by being deployed at an angle to each other, while being manufactured using a metal pipe, it is set to a weight that can stand up against wind pressure. A frame that can be folded and unfolded; has a rectangular shape, fastener insertion holes are formed at the four corners, fastener insertion holes are formed at intervals around the four peripheral edges, and are loosely stretched over the wide surface of the frame, A net and / or sheet for dropping or soundproofing the impacted stepping stones and dusts; tape-like or string-like, inserted through the four corner insertion holes of the net and / or sheet and the four corner insertion holes of the frame Both ends are fastened or tied to each other, inserted into the insertion holes at the four peripheral edges of the net and / or sheet, and hung by the vertical pipe or the horizontal pipe of the frame. By being mutually fastened or tied, the net and / or sheets and mounting means mounting the YuruCho rack state to said frame; characterized by comprising a.

  One of the features of the present invention is that a metal pipe is used for the pipe of the frame so that it can be manufactured to a sufficient weight. As a result, there is little risk that the self-supporting fence will fall even if it is subjected to wind pressure while the self-supporting fence is in use, and the self-supporting fence will not fall and collide with a passerby or vehicle, thereby ensuring work safety.

  The second feature of the present invention resides in that the frame can be assembled and disassembled by the pipe assembly, the outer vertical pipe and the horizontal pipe. As a result, even if the self-supporting fence is heavy, the self-supporting fence can be disassembled into pieces and easily carried by a single operator, and can be easily mounted on the vehicle even when transported to a distant work site. Can do.

  In addition, since the self-supporting fence can be deployed at an angle, it is possible to reliably prevent flying stones and dust not only to the side of the worker but also to the front, reducing the risk of hitting a passerby or car. it can.

  In addition, since flying stones and dust can be avoided, the operator does not need to perform mowing work in a dangerous posture, and mowing work can be performed while maintaining a safe posture, ensuring the safety of the worker. be able to.

  Furthermore, since the self-supporting fence can secure a stable self-supporting posture due to its own weight, it can not only prevent flying stones and dust from scattering, but also prevents concrete and asphalt from being scattered, and soundproofing in a noisy environment, It can be used for protecting flowers and fruit trees, practicing golf approaches, protecting parked cars, blindfolding of dangerous materials, welding and fusing sparks, and protecting against sparks from cutting and cutting.

  The net only needs to be able to receive a falling stone and be dropped. For example, it is preferable to use a net having a mesh size of about 1.5 to 3.5 mesh. Moreover, the sheet | seat should just be what can implement | achieve the function which prevents scattering of dust, protects against the spark of welding or fusing, and the spark of grinding | polishing and cutting | disconnection, and sound-proofs. The net and the sheet may be used simultaneously, or only one of them may be used depending on the purpose.

It is a schematic perspective view which shows preferable embodiment of the self-supporting fence which concerns on this invention. It is a figure which shows the state before the assembly of the said embodiment. It is a figure which shows the assembly state of the said embodiment. It is a figure which shows the usage example of the said embodiment. It is a figure which shows the other usage example of the said embodiment. It is a figure which shows the further another usage example of the said embodiment. It is a figure which shows the further another usage example of the said embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 7 show a preferred embodiment of a self-supporting fence according to the present invention. In the figure, the self-supporting fence is composed of a frame 10, a net 20, a sheet 30 and male and female surface fasteners 40. The surface fastener 40 has female fastener portions and male fastener portions formed on both ends thereof, or on the front and back surfaces. A female fastener part and a male fastener part are formed.

  The frame 10 includes a pipe assembly 11 in which two vertical pipes 11A are rotatably connected by two hinges 11B, two outer vertical pipes 12 provided outside the pipe assembly 11, and an outer vertical pipe 12 Four horizontal pipes 13 connected between the upper and lower ends and the upper and lower ends of the vertical pipe 11A of the pipe assembly 11, the upper and lower ends of the outer vertical pipe 12, and the upper end of the vertical pipe 11A of the pipe assembly 11 The L-shaped joint 15 is inserted into the lower end and fixed with an adhesive, and the horizontal pipe 13 is removably inserted. The L-shaped joint 15 can be assembled and disassembled, and can be self-supported by being expanded at an angle. Yes.

  The L-shaped joint 15 attached to the outer vertical pipe 12 is formed with a fastener insertion hole 15A, and the vertical pipe 11A, the outer vertical pipe 12, the horizontal pipe 13 and the L-shaped joint 15 of the pipe assembly 11 are made of iron. A metal pipe in which the outer inner surface of the pipe is resin-coated is used, so that the frame 10 has a weight that can stand up against wind pressure.

  Further, insertion holes 13A and 15B are formed at both ends of the horizontal pipe 13 and the portion where the horizontal pipe 13 of the L-shaped joint 15 is inserted, so that the horizontal pipe 13 and the L-shaped joint 15 can be fastened by screws and nuts 16. It has become.

  Further, the net 20 and the sheet 30 are manufactured in a rectangular shape, fastener insertion holes 20A are formed at the four corners, fastener insertion holes 20B are formed at intervals around the four peripheral edges, and the hinge 11B has A hook 17 is attached to hook the fastener insertion hole 20B.

  For example, when weeding roadside weeds using the brush cutter 50, the self-supporting fence of this example is disassembled into pieces and mounted on a vehicle, transported to the work site, lowered, and taken down from the pipe assembly 11 by the horizontal pipe 13. After connecting the vertical pipes 12, the net 20 is placed along the wide surface of the frame 10, and the hook-and-loop fasteners 40 are inserted into the insertion holes 20A at the four corners of the net 20 and the insertion holes 15A at the four corners of the frame 10, respectively. Fastened and inserted into the insertion holes 20B on the four peripheral edges of the net 20 to hold the outer vertical pipe 12 and the horizontal pipe 13 together, and both ends thereof are fastened to each other. Finally, the insertion hole 20B is formed at the center of the net 20. By hooking on the hook 17, as shown in FIG. 3, the net 20 can be attached in a state where it is gently stretched on the frame 10 (slowly stretched state).

  Next, as shown in FIG. 4, the frame 10 of the self-standing fence is expanded at an appropriate angle, and this is raised so as to cover the front and side of the place where the mowing work is performed. What is necessary is just to cut a weed using the brush cutter 50. FIG.

  After mowing the planned location, carry the self-supporting fence, but gradually move the self-supporting fence when the next mowing location is near. When the place is a little away, the net 20 can be removed from the self-standing fence, the horizontal pipe 13 can be pulled out and disassembled, carried apart, assembled, and weeded to cut the weeds. Can be transported, carried and assembled.

  At this time, when the wind is strong, there is a risk that the freestanding fence will fall if it receives wind pressure, but the freestanding fence in this example is set to a sufficient weight by a metal pipe, so the freestanding fence will fall even if the wind is strong There is little fear.

  When the self-supporting fence is used in a fixed manner, as shown in FIG. 2, the horizontal pipe 13, the pipe assembly 11, and the outer vertical pipe 12 can be firmly connected by screws and nuts 16.

  In addition, as shown in FIG. 5, the self-standing fence of this example can protect the damage caused by scattering of the suspended pieces by surrounding the concrete and asphalt suspension work site.

  Furthermore, as shown in FIG. 6, in a noisy environment, sound can be prevented by making a self-supporting fence with a soundproof sheet 30 attached instead of the net 20 around the noise source.

  Also, when practicing approach with the golf club 70 in hand, as shown in FIG. 7, if the golf ball is applied toward the self-supporting fence of this example, the golf ball will fly away. There is nothing, and you can practice golf easily.

  Furthermore, the self-supporting fence of this example can be used for protection against welding and fusing sparks and polishing and cutting sparks.

DESCRIPTION OF SYMBOLS 10 Frame 11 Pipe assembly 11A Vertical pipe 11B Hinge 12 Outer vertical pipe 13 Horizontal pipe 20 Net 30 Sheet 50 Brush cutter 51 Worker

Claims (2)

A self-supporting fence that prevents the flying stones, dust, or suspended pieces from scattering around the grass during mowing with a brush cutter, concrete or asphalt, or in a dust environment, and is soundproof in a noisy environment. In
A pipe assembly in which two vertical pipes are rotatably connected to each other by a hinge, two outer vertical pipes provided on both outer sides of the pipe assembly, the two outer vertical pipes and the pipe assembly The four vertical pipes connecting the upper and lower ends of the vertical pipes, and the upper and lower ends of the vertical pipes of the two outer vertical pipes and the pipe assembly, and both ends of the horizontal pipes. The other is constructed in a structure that can be assembled and disassembled by an L-shaped joint that is removably inserted, and a fastener insertion hole is formed in the L-shaped joint that is attached to the outer vertical pipe, and is self-supporting by being deployed at an angle to each other. On the other hand, a foldable and unfoldable frame that is set to a weight that can stand against wind pressure by being manufactured using a metal pipe,
It has a rectangular shape, fastener insertion holes are formed at the four corners, fastener insertion holes are formed at the four peripheral edges, and are loosely stretched over the wide surface of the frame to drop the impacted stepping stones and dust. Or a soundproof net and / or sheet,
It has a tape shape or a string shape, and is inserted into the insertion holes at the four corners of the net and / or the sheet and the insertion holes at the four corners of the frame, and both ends thereof are fastened or tied together. The net and / or the seat is loosely attached to the frame by being inserted into the four peripheral insertion holes and hugging the vertical pipe or the horizontal pipe of the frame so that both ends thereof are fastened or tied together. Mounting means for mounting on;
A self-supporting fence characterized by comprising 2. The self-supporting fence according to claim 1, wherein the attaching means is a male or female hook-and-loop fastener or a string.

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