JP3014220B2 - Protective net and sheet connecting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective net and a connector used for connecting protective sheets for security management at a construction site such as a building.

[0002]

2. Description of the Related Art In the construction of houses and buildings, many materials are brought in, and these materials are handled at high places, so that the danger of falling objects around the work site is extremely high. . For this reason, in general, a construction site or the like utilizes a scaffold surrounding the site and stretches a protective net or a protective sheet around the site to prevent materials and work tools from falling out. The protective net and the protective sheet are formed in a predetermined size in advance, and are configured in a curtain shape by connecting the nets or sheets together in accordance with the size of the construction site so as to surround the entire periphery of the workplace. Conventionally, in this case, the connection of the net or the sheet is usually performed by using a wire. The wire is connected to an eyelet-shaped metal ring which is attached to an edge of the net or the sheet in advance, and the wire is tied. The end of the wire is wound around a support and fixed, and stretched along the outside of the scaffold. The connection by the wire can be easily used even when the condition changes because the wire can be freely bent and the length can be freely selected, and can be used conveniently.
When connecting at a large number of places, it has to be bent and twisted each time, so that it is extremely troublesome work. In particular, when a large area such as a building construction site is covered, a large number of nets and sheets are used, so that thousands or tens of thousands of connections are required, and the labor required for the work is extremely large. Become. In addition, in the case of using a wire, the twisting must be returned when the connection between the net and the sheet is released, so that the work is more difficult than mounting.

[0003]

SUMMARY OF THE INVENTION The present invention has been developed in view of such a conventional problem, and its object is to provide a protective net or a sheet along the edge of a sheet. It is an object of the present invention to provide a protective net and a connecting member for a sheet in which a net or a sheet can be joined by simply inserting the through hole into the through hole, and the joining can be released by pulling out the insertion. Things. Further, the present invention provides a protection net and a scaffold for attaching these nets and sheets together with the work of joining the nets and the sheets together, that is, the protection nets and the metal pipes are fastened and integrally fixed. It is intended to provide a connecting device for nets and seats.

[0004]

The connector according to the present invention has a base plate in the form of a strip, and has a pair of engaging portions provided on one or both sides thereof. When the edges of the protective net or the protective sheet are brought into contact with each other at the abutting portions, the engaging portions forming a pair have an interval corresponding to the distance between the through holes formed in the edges of the net and the sheet. And is erected. Each engaging portion is formed to have a shaft diameter that can be inserted into the through hole, and a leading end portion is provided with a locking portion that can be reduced in diameter. When the protective net or the like is connected, the locking portion cannot be inserted into the through hole. To allow the nets to be connected to each other,
When the connection is released, the locking portion is narrowed and pulled out of the through hole to release the connection. By the way, the shape of the engaging portion is not limited to one, but as an example, the engaging portion is formed in a short columnar shape, and a tapered conical or truncated conical portion having a tapered tip is formed at the tip. The engaging portion is formed and used as a locking portion, while a vertical slit is provided from the tip of the engaging portion and divided into two to obtain an engaging portion whose diameter can be reduced. The engaging portion has the vertical slit having a reduced diameter width, and when inserted into the through hole, the two divided pieces are brought together to reduce the diameter of the locking portion so that the locking portion is easily locked. Can be pulled out. Next, an embodiment illustrating the present invention will be described in detail, and its features will be clarified.

[0005]

Embodiment 1 FIGS. 1 to 6 show a first embodiment of a coupler according to the present invention. 1 is a front view of the coupler, FIG. 2 is a plan view, FIG. 3 is a right side view, and FIG. The connector 1 in this embodiment is integrally formed of a thermoplastic synthetic resin having a required rigidity and elasticity, for example, polyethylene or the like, and the base substrate 2 is formed into a strip having a required thickness. A pair of engaging portions 3 and 3 are erected from one side of the lever.

The engaging portions 3, 3 are connected to the protective net 4,
When the edges of 4 are aligned in abutment, they are erected with a wider interval than the distance between the through holes 5 and 5 provided along this edge. Of course, the interval between the engaging portions can be freely set within a range in which the edges of the net are not excessively opened or overlapped when connecting the nets, and are not strictly limited. This engaging portion is a through hole 5
Is formed in a short columnar shape that can pass through.
A vertical slit 7 is provided from the distal end of the locking portion 6 toward the base end of the shaft, and is divided into two pieces.

[0007] The slit 7 is for reducing the enlarged locking portion 6 when the engaging portion 3 is passed through the through-hole 5 and when the engaging portion 3 is pulled out from the through-hole. A cut is formed at a position eccentrically located outward from the center position in each of the engagement portions, and the inner piece 3a is made thicker, and the outer piece 3b is made thinner so that one has rigidity and the other has flexibility. An operation piece 8 for swinging operation is provided at the tip of the piece 3b provided with flexibility.

In the figure, reference numeral 9 denotes a fixing tool for fixing the connecting tool 1 according to the above structure to a metal pipe material 10 constituting a scaffold at a construction site, and reference numeral 11 denotes a fixing portion provided integrally with the fixing tool. is there. The fixing member 9 is formed in a bay shape from a synthetic resin material, and is elastically pinched and fixed to the pipe material 10 by opening an end portion thereof. The T-shaped fixing portion 11 is formed by this fixing member. Is provided so as to stand on the outer side surface of the substantially central portion of the main body. The fastening portion 11 is a through hole 1 formed as a single slit in the center of the substrate 2 of the connecting tool 1.
The upper end locking piece 11a is formed in a horizontally long rod shape that can gradually pass through the through hole 12, and is turned 90 degrees after passing so that it cannot be pulled out and locked. .

The connector 1 constructed as described above is engaged with one of the engaging portions 3 by pressing the one engaging portion 3 into the through-hole 5 of the protective net 4 whose edges are aligned with each other, and locking the other. The engaging portion 3 is also pushed into a through hole 5 provided in the other protective net 4 to lock and connect both the protective nets.

FIG. 4 shows a state in which the protective nets aligned in abutment are connected to each other by the engagement of the engaging portions 3 and 3. The engaging portions 3, which are engaged with the through holes 5, 5, respectively.
3 is to secure the locked state by expanding the locked portion 6 once narrowed using the slit 7 on the side opposite to the through hole. The engaging portion divided by the slit 7 is hooked on the edge of the through hole on the edge side of the net with the piece 3a having increased thickness and increased rigidity to exert sufficient locking force when the net is pulled. I can do it. By the way, as shown in the figure, a metal eyelet ring 13 for securing a hole diameter is attached to the through hole 5 provided in the protection net 4 so that the engagement state of the engaging portion is stabilized.

In this connecting tool, the engaging portions 3 are successively engaged with the through holes 5 provided in the protective net by the above-described method to connect the nets together. When fixing to the pipe member 10 at an appropriate position, the fastening portion 1 of the fixing tool 9 is inserted into the through hole 12 of the connecting tool 1 used for the connection.
1 and hook it, and pipe material 1
It will be stopped by fitting to zero.

On the other hand, the protective nets are connected to each other by using a plurality of connecting members in this manner, and a fixing member 9 is attached to an appropriate one of the connecting members.
When the connection is released, the end of the engaging portion inserted into the through hole 5 is disengaged by loosening the tip of the engaging portion and disengaging the engaging portion 6. it can.

The operation piece 8 is used to release the engagement, and the operation piece is tilted toward the slit 7 to bring the flexible piece 3b closer to the other piece 3a so that the locking portion 6 is engaged. It will be reduced and it will help pulling out from the through hole 5. Of course, since the above-mentioned connecting member is not damaged by the disconnection, it is needless to say that it can be reused as it is.

In this embodiment, the case where the engaging portion 3 is provided upright on one surface of the substrate 2 has been described. Even, one of the pair of engaging portions is one side,
It goes without saying that the present invention can be effectively implemented even if the other is provided on the other surface.

[0015]

Embodiment 2 FIGS. 7 and 8 show a second embodiment of the present invention in which a metal plate is formed from a raw material. Reference numerals 14 and 15 shown in the drawings are a pair of connecting pieces constituting a connecting tool. The connecting pieces 14 and 15 are formed of band-shaped metal plates, and both of them are bent in a semicircular shape in the middle of the length to hold the holding portion 1.
6, 17 are formed. Tongue-shaped engaging pieces 19, 19 are provided at both end portions 18, 18 of one connecting piece 14,
The engagement pieces 19 are attached to the ends 20 of the other connection piece 15.
The slit-shaped engagement holes 21 and 21 are provided in correspondence with.

The holding portions 16 and 17 are connected to both connecting pieces 14 and 1.
5 are formed in such a size as to be able to embrace the pipe material 10 of the scaffold by being combined in a circle when they face each other.
The end portions 18 and the end portions 20 extending from the holding portion are formed so as to reach the through holes 5 provided in the protective net 4 from the edge side thereof. An engagement hole 21 formed in the end portion 20 is opened at a position corresponding to the edge of the end portion 18 so that it can be inserted up to the base end of the tongue-shaped engagement piece 19.

The connecting member consisting of the two connecting pieces 14 and 15 has one connecting piece 14 attached from one surface side between the protective nets 4 and 4 whose edges are in contact with each other. , 19 are inserted into the through holes 5, 5 of the net, and then the other connecting piece 15 is attached from the other side, and the engaging piece 19 passed through the through hole is inserted into the engaging hole 21 and bent. It is a thing that can connect internet comrades.

In this operation, one of the connecting pieces 14 is formed by bending the engaging pieces 19 at both ends at right angles at the base end and keeping the engaging pieces 19 upright toward the other connecting piece 15 in this state. The connecting work can be easily performed by inserting the piece 19 into the through hole 5 and then inserting the piece 19 into the engaging hole 21 of the connecting piece 15 to be attached from the opposite side. At this time, the pipe member 10 may be sandwiched between the holding portions 16 and 17 of both connecting pieces and held.
The engaging piece 19 passed through the engaging hole 21 is bent at the base end, and the fastening is completed along the end 20.

FIG. 8 shows a state in which the connection is completed by the connecting tool. The two nets 4 whose edges are brought into contact with each other with the pipe material 10 interposed therebetween are fixed by engaging pieces 19 passed through the through holes 5. Further, since the pipe members 10 are held by the holding portions 16 and 17, they are integrally fixed to the pipe members 10.

In the illustrated embodiment, the engaging pieces 19 are formed at both ends of one connecting piece 14 and the engaging holes 21 are formed at both ends of the other connecting piece 15. An engagement piece 19 may be provided at one end and an engagement hole 21 may be provided at the other end, whereby two connecting pieces 14 and 15 are provided.
Can be made identical, which is advantageous in terms of manufacturing and management.

[0021]

Third Embodiment Next, FIGS. 9 and 10 show a third embodiment of the present invention. The connector shown in this embodiment is shown as binding the edge of the protective net 4 to the pipe member 10. The connecting piece 22 is formed by cutting a metal plate into a band shape, bending the whole into an annular shape, extending a tongue-shaped engaging piece 24 at the end of one end 23, and connecting the other end 25 to the above-mentioned engaging piece 24. An engagement hole 26 for receiving the piece 24 is opened.

The connecting member is first wound around the pipe member 10, and then the engaging piece 24 provided at one end 23 is bent at a base end at a right angle to be inserted into the through hole 5 of the protective net 4. Then, the fastening is completed by passing through the engagement hole 26 provided at the other end and then bending it again at a right angle and aligning it with the surface of the other end.

Since the connecting member is made of a metal plate, the engaging piece 24 can be inserted into the engaging hole 26 and then simply bent to maintain the stopped state. In addition to being fixed to the material, there is an advantage that the engagement piece 24 can be easily removed by returning the bending of the engagement piece 24, and the work can be performed easily and quickly.
Of course, there is an advantage that reusability is possible and economic efficiency is excellent.

[0024]

As described above, the present invention has been described in detail based on the embodiments. However, according to the connector of the present invention, the engaging portion is formed in the through hole provided along the edge of the protective net or the protective sheet. The connection can be made very easily because it can be easily locked simply by piercing, and by simply bending the engaging piece through and bending, and by narrowing the tip of the engaging portion, or by bending By returning it, the connection can be easily removed, and there is an advantage that the workability is excellent. In addition, since it can be reused, there is an advantage that the economy is excellent.

[Brief description of the drawings]

FIG. 1 is a front view of a connector according to a first embodiment.

FIG. 2 is a plan view of a coupling tool.

FIG. 3 is a right side view of the coupler.

FIG. 4 is a front view in central section showing a state in which protective nets whose edges are joined together are connected.

FIG. 5 is a perspective view illustrating a relationship between a connecting tool and a fixing tool.

FIG. 6 is a front view illustrating a connection relationship between the coupling tool and the fixing tool and a state in which the fixing tool is attached to the pipe member.

FIG. 7 is an exploded perspective view of the second embodiment.

FIG. 8 is a partial cross-sectional plan view illustrating a state of use in the second embodiment.

FIG. 9 is a perspective view illustrating a state of use in a third embodiment.

FIG. 10 is a plan view showing a partial cross section of a use state in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connecting tool 2 Substrate 3 Engagement part 3a, 3b Piece which comprises an engagement part 4 Protective net 5 Through-hole 6 Locking part 7 Slit 8 Operation piece 10 Pipe material

Claims (5)

(57) [Claims] 1. A pair of engaging portions is provided upright on one or both surfaces of a band-shaped substrate at a predetermined interval, and a tip portion of the engaging portion is expanded to provide a locking portion. A connecting member for a protective net and a seat, characterized in that a vertical slit is provided from the portion so that the locking portion can be reduced in diameter. 2. An engaging part according to claim 1, wherein the engaging part is formed in a short shaft shape, the outer peripheral surface of the tip part is expanded to form a locking part, and a vertical slit is provided from the tip part. A protective net / sheet connecting device characterized in that the locking portion is divided so that the diameter of the locking portion can be reduced. 3. The protective net according to claim 2, wherein the engagement portion is formed by extending an operation piece for releasing the engagement from a tip of one of the pieces divided by the vertical slit. Seat coupling. 4. The fixing device according to claim 2, wherein a through hole is formed in a central portion of the strip-shaped substrate, and a fixing tool which is fastened to a pipe material constituting the scaffold so as to be wound around the pipe material from the outer peripheral surface. A protection net / sheet connector comprising a letter-shaped fastening portion standing upright, the fastening portion being engaged with the through hole, and the substrate being fastened to the fixture. 5. A connecting piece made of a pair of metal strips facing each other in the same longitudinal direction, wherein the connecting piece is bent in a semicircular shape in the middle of each length of the connecting piece to form a holding portion. A protective net characterized in that an engaging piece is formed on one of the short portions of both connecting pieces and an engaging hole is formed on the other, and
Seat coupling.