JP2964076B2 - Safety net extension bracket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety net extending fitting.

[0002]

2. Description of the Related Art Conventionally, when a worker working at a high place falls down by stepping on the foot, the worker is prevented from hitting the ground or the like by mistake, 2. Description of the Related Art Safety nets are frequently used to prevent workers from being injured by hitting lower workers when objects are dropped.

[0003] To extend the safety net, a number of extension ropes are attached to the periphery of the safety net in advance, and these extension ropes are fixed to the extension fittings and pulled to secure the fixing portion on the building side. The fastening metal fittings are fastened.

[0004] However, when the opening on the building side on which the safety net is installed is increased, the area of the safety net is also increased and the force required for installation of the safety net is increased accordingly.

[0005] Further, there is a problem that the safety net is lifted by a strong wind such as a typhoon and the tension rope is detached from the tension fitting.

[0006] For this reason, the extension metal fitting used for fixing the tension rope and fixing it to the fixed portion on the building side can securely fix the tension rope and securely fix it to the fixed portion on the building side. High-quality, high-precision, and highly reliable products that can be fixed to a vehicle are required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has high quality, high accuracy, and high reliability in which a safety net can be securely fixed to a fixed portion on a building side. The purpose is to provide high safety net tensioning hardware.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

[0009] One end of the safety net 1 having a stretched rope 2 attached to the periphery thereof is fixed to the stretched rope 2, and the other end is fixed to the fixing portion 4 of a column 3 such as a building so that the safety net 1 is stretched. A metal fitting main body 5 is formed in a substantially U-shape, and a rope fastening for fastening the tension rope 2 to a back surface 6 which is one end of the metal fitting main body 5. The part 7 is provided integrally with the metal fitting body 5, and a clamping surface 9 for clamping the fixing part 4 of the support 3 from one side is provided at one end of an opening of the front surface 8 which is the other end of the metal fitting body 5. The holding surface 9 is provided with a holding groove 10 having a predetermined width for vertically extending a substantially central portion of the holding surface 9 from the front surface 8 side to the back surface 6 side of the metal fitting body 5, and is provided on the holding surface 9.
The holding groove 10 is moved from the front surface 8 side of the metal fitting body 5 to the back surface 6 side.
To form the clamping groove 10, and when machining the clamping groove 10
The inner surface of the metal fitting body 5 in which the generated burrs 11 are formed in a substantially U-shape.
And a bolt 13 for screwing the fixing portion 4 of the support column 3 from the other end to the other end of the opening of the front surface 8 which is the other end of the fitting body 5. For securing the safety net, wherein a tip portion 14 of a bolt 13 screwed to the screw portion 12 is provided at a position corresponding to the holding groove 10. It relates to metal fittings.

Further, the rope fixing portion 7 is formed in a substantially L-shape.
And provided at the upper and lower ends of the rear surface 6 of the metal fitting body 5, respectively.
Keep the tip of the loop fastening part 7 away from the rear surface 6 of the metal fitting body 5
The safety net tensioning fitting according to claim 1, characterized in that it is inclined as described above.

Further, one end of the safety net 1 having a stretched rope 2 attached to the periphery thereof is fixed to the stretched rope 2, and the safety net 1 is fixed to the fixing portion 4 of a column 3 such as a building so that the safety net 1 is stretched. A safety net tensioning fitting for fixing the other end, wherein the fitting main body 5
Is formed in a substantially U-shape, and a back surface 6 which is one end of the bracket main body 5 is formed.
A rope fastening portion 7 for fastening the tension rope 2 is integrally provided with the metal fitting body 5, and a front surface 8, which is the other end of the metal fitting body 5.
At one end of the opening, a clamping surface 9 for clamping the fixing portion 4 of the support column 3 from one side is provided, and at the other end of the opening of the front surface 8 which is the other end of the metal fitting main body 5. A screwing portion 12 for screwing and fixing a bolt 13 for holding the fixing portion 4 of the support 3 from the other side is provided, and a tip portion 14 of the bolt 13 for screwing and fixing to the screwing portion 12 is held. The rope fastening portion 7 is formed at a position corresponding to the surface 9, and the rope fastening portion 7 is formed in a substantially L-shape and provided at the upper and lower ends of the back surface 6 of the metal fitting body 5, respectively.
The safety net tension fitting is characterized in that its tip is inclined away from the back face 6 of the fitting body 5.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

The metal fitting body 5 is formed in a substantially U-shape, and a rope fastening portion 7 for fastening the tension rope 2 is integrally provided on the back surface 6 which is one end of the metal fitting body 5. treasure,
Even if the tensioned rope 2 fastened by the rope fastening portion 7 is pulled by a large force, the rope fastening portion 7 does not separate from the metal fitting main body 5, and the other end of the metal fitting main body 5 is a front surface. At one end of the opening 8, a clamping surface 9 for clamping the fixing portion 4 of the support 3 from one side is provided, and the clamping surface 9 is provided on the clamping surface 9.
Of the metal body 5 from the front surface 8 side to the rear surface 6 side is provided with a clamping groove 10 having a predetermined width, and the other end of the opening of the front surface 8 which is the other end of the metal body 5 Fixed part 4 of column 3
A screw 13 for screwing and fixing a bolt 13 for pinching the screw 13 from the other side, and a bolt 13 for screwing and fixing to the screwed portion 12
Of the supporting column 3 is fixed to the clamping surface 9 and the bolt 13.
Of the bolt 13 presses the fixing portion 4 at a position corresponding to the holding groove 10 provided substantially at the center of the holding surface 9. Can be clamped between the left and right clamping surfaces 9 separated by the clamping groove 10 and the tip portion 14 of the bolt 13 in a very stable state.
Even if a large force is required to stretch the cable, the safety net 1 can be securely fastened by the rope fastening portion 7, and the fastening surface 9 and the bolt 13 are securely attached to the fixed portion 4 on the building side. A high-quality, high-precision and highly reliable safety net tension fitting that can be fixed can be obtained.

Further, since the holding groove 10 provided on the holding surface 9 is formed by processing the holding groove 10 from the front surface 8 side to the back surface 6 side of the metal fitting body 5, the holding groove 10 is formed when the holding groove 10 is processed. The burrs 11 to be formed can be formed on the inner surface side of the bracket main body 5 formed in a substantially U-shape, and since the burrs 11 do not occur on the outer surface of the bracket main body 5, the generated burrs 11 may be in the way. Therefore, there is no need to perform the operation of removing the burrs 11 as in the related art, and it is possible to easily manufacture an extremely high-quality, high-precision, and highly reliable safety net installation metal fitting.

Further, a rope fixing portion 7 is formed in a substantially L-shape and provided at the upper and lower ends of the rear surface 6 of the metal fitting main body 5, respectively. Since the ropes 2 are inclined so as to move away from the ropes, even if the tension ropes 2 surrounded by the respective rope fixing parts 7 move up and down, right and left, and back and forth due to strong winds or the like, the tensioning ropes 2 are contacted by the rope fixing parts 7. Since the rubbing force is reduced, it is possible to eliminate the possibility that the tension rope 2 is broken, and it is difficult for the tension rope 2 to come out of the rope fixing portion 7. For example, the safety net 1 may be damaged by a strong wind such as a typhoon. Even if it is raised, the tension rope 2 does not come off from the rope fixing portion 7.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a safety net extension according to an embodiment of the invention.

In this embodiment, as shown in FIGS. 1 to 4, one end of a safety net 1 having a stretched rope 2 attached thereto is fixed to the stretched rope 2 and the safety net 1 is stretched. A safety net tensioning fitting for fixing the other end to a fixing portion 4 of a column 3 such as a building, wherein a fitting main body 5 is formed in a substantially U-shape, and a back surface which is one end of the fitting main body 5 6, a rope fixing portion 7 for fixing the tension rope 2 is provided integrally with the metal fitting main body 5, and the column 3 is fixed to one end of an opening of the front surface 8, which is the other end of the metal fitting main body 5. A clamping surface 9 for clamping the portion 4 from one side is provided, and the clamping surface 9 has a predetermined width for vertically cutting a substantially central portion of the clamping surface 9 from the front surface 8 side to the back surface 6 side of the fitting body 5. A front surface 8 which is the other end of the metal fitting body 5.
At the other end of the opening, a screwing portion 12 for screwing and fixing a bolt 13 for holding the fixing portion 4 of the column 3 from the other side is provided.
And a tip portion 14 of a bolt 13 to be screwed and fixed to the screw portion 12.
Are arranged at positions corresponding to the clamping grooves 10.

The clamping groove 10 provided on the clamping surface 9 is formed from the front surface 8 side to the rear surface 6 side of the metal fitting body 5 to form the clamping groove 10, which is generated when the clamping groove 10 is processed. Bali
11 is formed on the inner surface side of the bracket main body 5 formed in a substantially U-shape. An inner concave portion in which the rope fixing portion 7 is provided integrally with the metal fitting main body 5, the metal fitting main body 5 is formed in a substantially U-shape, and the metal fitting main body 5 is formed on the inner surface side below the holding surface 9 and lower than the holding surface 9. The method of forming the metal fitting body 5 provided with 16 is performed by die molding.
In view of the above shape, it is necessary to set the mold dividing direction to the left and right direction of the metal fitting body 5.

By appropriately providing the recess 15 in the metal fitting body 5,
The molding conditions can be improved by reducing the weight of the metal fitting body 5 and reducing the thickness of the thick metal part of the metal fitting body 5. A screwing portion 12 for screwing a bolt 13 is formed on a metal fitting body 5 provided with a rope fixing portion 7 formed by die molding, and a substantially central portion of the clamping surface 9 is formed on the clamping surface 9. Bracket body 5
The holding groove 10 having a predetermined width vertically extending from the front surface 8 side to the back surface 6 is formed by cutting or the like from the front surface 8 side to the back surface 6 side.

Since the clamping groove 10 is machined from the front surface 8 side to the back surface 6 side, the burrs 11 generated at the time of machining are formed in the inner concave portion 16 on the inner surface side of the substantially U-shaped fitting body 5. Can be generated.

Further, a rope fixing portion 7 for fixing the tension rope 2 to the back surface 6 which is one end of the metal fitting main body 5 is provided integrally with the metal fitting main body 5, and this rope fixing portion 7 is appropriately provided. Although it can be formed in a shape, in particular, as shown in FIG.
At the upper and lower ends of the rear surface 6 of the bracket, the tip end of the rope fixing portion 7 is appropriately inclined so as to be away from the rear surface 6 side of the metal fitting main body 5, so that the tension surrounded by each rope fixing portion 7 is provided. Even if the installed rope 2 moves up and down, left and right, and back and forth due to strong wind, etc., the force of rubbing the installed rope 2 at the contact portion of the rope fixing portion 7 is reduced, so that the installed rope 2 may break. At the same time, the tension rope 2 does not easily come off from the rope fixing part 7, and the tension rope 2 does not come off from the rope fixing part 7 even if the safety net 1 is lifted by strong wind or the like.

[0022]

As described above, according to the present invention, the metal fitting body is formed in a substantially U-shape, and a rope fastening portion for fastening the tensioned rope is provided on the back surface at one end of the metal fitting body. Since it is provided integrally with the main body, even if the tensioned rope fixed at the rope fixing part is pulled with great force, the rope fixing part does not separate from the metal fitting main body, and the other end of the metal fitting main body At one end of the opening on the front surface, a clamping surface for clamping the fixing portion of the column from one side is provided, and the substantially central portion of the clamping surface is arranged on the clamping surface from the front side to the rear side of the bracket body. To provide a holding groove having a predetermined width to be longitudinally cut, and to screw-fix a bolt for holding the fixing portion of the column from the other end to the other end of the front opening which is the other end of the metal fitting body. And the tip of a bolt to be screwed and fixed to the screwed portion is located at a position corresponding to the clamping groove. As a result, the fixing portion of the support pillar can be securely clamped between the clamping surface and the tip of the bolt, and the bolt tip is fixed at the position corresponding to the clamping groove provided at substantially the center of the clamping surface. Since it is pressed, the fixing part can be clamped in a very stable state between the left and right clamping surfaces separated by the clamping groove and the tip of the bolt, and a large force is required to stretch the safety net. Even if necessary, the safety net can be securely fastened with the rope fastening part, and can be securely fastened to the fixed part on the building side with the clamping surface and bolts. It can be a metal fitting.

Further, since the holding groove provided on the holding surface is formed from the front side to the back side of the metal fitting body to form the holding groove, burrs generated at the time of forming the holding groove are substantially U-shaped. The burr can be formed on the inner surface side of the bracket body, and the burr does not form on the outer surface of the bracket body. It is not necessary to carry out, and it is possible to easily manufacture a very high-quality, high-precision, and highly reliable safety net tension fitting.

Also, the rope fastening portions are formed in a substantially L-shape and are respectively provided at the upper and lower ends of the rear surface of the metal fitting body, and the tip end of the rope fastening portion is inclined toward the rear surface of the metal fitting body. Even if the tensioned rope surrounded by the rope fixing part moves back and forth, up and down, left and right due to strong wind, etc., the tension of the tensioning rope at the contact part of the rope fixing part is eased, so the tensioning rope breaks It is difficult for the tension rope to escape from the rope fastening part, and even if the safety net is raised by a strong wind such as a typhoon, the tension rope may come off from the rope fastening part There is nothing.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a safety net tension fitting according to an embodiment of the present invention.

FIG. 2 is an enlarged explanatory view of a main part of FIG. 1;

FIG. 3 is an explanatory view showing a use state of the safety net extending fitting according to one embodiment of the present invention.

FIG. 4 is a perspective view showing a use state of the safety net tension fitting according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Safety net 2 Tension rope 3 Prop 4 Fixing part 5 Bracket body 6 Back 7 Rope fixing part 8 Front 9 Nipping surface 10 Nipping groove 11 Burr 12 Threaded part 13 Bolt 14 Tip

Claims (3)

(57) [Claims] 1. An end of a safety net having a tension rope attached to the periphery thereof is fixed to one end of the tension rope, and the other end is fixed to a fixing portion of a pillar such as a building so as to stretch the safety net. A safety net tensioning metal fitting, wherein a metal fitting body is formed in a substantially U-shape, and a rope fastening portion for fastening a tensioning rope is provided integrally with the metal fitting body on the back surface, which is one end of the metal fitting body. A clamping surface for clamping the fixing portion of the support from one side is provided at one end of the front opening, which is the other end of the fitting body, and the clamping surface has a substantially central portion of the clamping surface. A clamping groove having a predetermined width is provided to extend longitudinally from the front side to the rear side of the bracket main body, and the clamping surface is formed on the clamping groove.
Provide the holding groove from the front side to the back side of the bracket main body.
Forming a clamping groove by processing
Burrs are formed on the inner surface of the bracket body
The other end of the front opening, which is the other end of the metal fitting body, is provided with a screwing portion for screwing and fixing a bolt for clamping the fixing portion of the support from the other side, A safety net tensioning fitting, wherein a tip end of a bolt screwed and fixed to the screwed portion is located at a position corresponding to the holding groove. 2. The rope fixing part is formed in a substantially L-shape.
The rope fixing portion is provided at each of the upper and lower ends of the rear surface of the bracket main body.
Tip of the bracket away from the rear of the bracket body.
2. The safety net tensioning fitting according to claim 1, wherein 3. One end of the safety net having a tension rope attached to the periphery thereof is fixed to the tension rope, and the other end is fixed to a fixing portion of a column such as a building so as to stretch the safety net. A safety net tensioning metal fitting, wherein a metal fitting body is formed in a substantially U-shape, and a rope fastening portion for fastening a tensioning rope is provided integrally with the metal fitting body on the back surface, which is one end of the metal fitting body. The other end of the front opening, which is the other end of the fitting body, is provided with a clamping surface for clamping the fixing portion of the support from one side, and the other end of the front opening, which is the other end of the fitting body, is provided. The part is provided with a screwing part for screwing and fixing a bolt for holding the fixing part of the column from the other side, and the tip of the bolt for screwing and fixing to the screwing part corresponds to the holding surface. To the position where
The rope fastening portion is formed in a substantially L-shape and provided at the upper and lower ends of the rear surface of the metal fitting body, and the tip end of the rope fastening portion is inclined so as to be away from the rear surface of the metal fitting body. And safety net tension fittings.