JP3751374B2 - Connection structure of flexible strip and cylindrical hook in fence post - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting structure of a flexible belt-like body and a cylindrical hook body in a fence post.
[0002]
[Prior art]
A plurality of support columns made of hollow cylinders are set up at appropriate intervals, and a flexible belt-like body is stretched between the upper portions of the support columns so as to restrict the passage of pedestrians. A fence post that can accommodate a sexual belt in a hollow cylinder when not in use has been previously filed by the present applicant (Japanese Patent Application No. 7-224809).
[0003]
As shown in FIG. 7, the fence post a has a cylindrical hook body e fixed to the tip of a flexible strip d that is pulled out from a drawer c formed at the top of the hollow cylinder b. In addition, a locking rod f that can fit the cylindrical hook body e is provided in the vertical direction on the opposite side of the hollow cylinder b to the outlet c. Then, the two hook struts a adjacent to each other are secured by externally fitting and locking the cylindrical hook body e of the flexible belt-shaped body d drawn out from the other fence strut a to the retaining rod f. , A can be stretched with a flexible strip d.
[0004]
8 and 9 show a connecting structure of a flexible belt-like body d and a cylindrical hook body e in a conventional fence post. Here, the conventional cylindrical hook body e is formed by bending a thin metal plate to form a hook portion h having a substantially C-shaped cross section having an opening edge g in the vertical direction on the side peripheral surface, and the opening edge g. A pair of sandwiching plate portions i, i extending laterally from each other is integrally formed, and a plurality of insertion holes j are formed in the sandwiching plate portions i, i. In addition, a plurality of through holes k are formed at positions corresponding to the insertion holes j at the distal end portion of the flexible band d. Then, with the through hole k aligned with the insertion hole j, the distal end portion of the flexible belt-like body d is sandwiched between the clamping plate portions i and i of the cylindrical hook body e and is inserted into the insertion holes j. By crimping the rivet m, the flexible belt-like body d and the cylindrical hook body e are connected.
[0005]
[Problems to be solved by the invention]
In such a conventional configuration, since the cylindrical hook body e is formed by bending a single thin metal plate, there is a problem that the strength is low and the shape is easily deformed. There is a problem that processing becomes difficult. Further, since the flexible strip d is fixed by the rivet m inserted through the through hole k, the flexible strip d is broken from the through hole k when a strong tensile force is applied. There is.
[0006]
Further, when the flexible belt-like body d is housed, the sandwiching plate portions i and i of the cylindrical hook body e are housed in the pull-out port c of the hollow tubular body b, so that they protrude from both sides of the sandwiching plate portions i and i. It is necessary to use a small rivet m so that the head of the rivet m does not get caught on the periphery of the outlet c, and there is a problem that the technique of caulking the rivet m is difficult and workability is poor. Furthermore, since the head of the rivet m is exposed on the surface of the sandwiching plate portions i and i, there are problems such as poor design.
[0007]
An object of the present invention is to provide a connection structure of a flexible belt-like body and a cylindrical hook body that can solve the conventional problems.
[0008]
[Means for Solving the Problems]
The present invention is a cylinder in which at least two hollow cylinders are erected at appropriate intervals, and a flexible belt-like body housed in one hollow cylinder is pulled out from the upper part of the hollow cylinder and fixed to the tip thereof The flexible band-like body is stretched between the hollow cylindrical bodies by engaging the hook-like hook body with a locking rod disposed in the vertical direction on the upper outer periphery of the other hollow cylindrical body. In the fence post configured as follows,
A substantially C-shaped cross section having an inner cylindrical body having a fitting insertion hole that can be externally fitted to the locking rod, an opening edge in the vertical direction on the side circumferential surface, and disposed so as to surround the outer periphery of the inner cylindrical body A cylindrical hook body is formed by the cover body and the end caps respectively fitted to the upper and lower ends of the cover body. The tip of the flexible belt is wound around the inner cylinder of the body, the outer periphery thereof is surrounded by the cover body, the flexible belt is inserted through the opening edge of the cover body, and the upper and lower sides of the cover body are A flexible belt-like body and a cylindrical hook body are connected by fitting end caps to both ends.
[0009]
In this configuration, the distal end portion of the flexible strip is wound around the inner cylinder, the outer periphery thereof is surrounded by the cover, and the flexible strip is sandwiched between the cover and the inner cylinder. The flexible belt-like body is fixed by forcibly fitting the end caps that hold the sandwiched state to the upper and lower ends of the cover body. As a result, the design is improved because no rivets are used as in the prior art, and the flexible strips are connected even when a strong tensile force is applied because there are no through holes or the like for inserting the rivets into the flexible strips. Since it is not broken from the part and is fixed by fitting the end cap, a troublesome rivet caulking operation is unnecessary, and the connecting operation can be easily performed, so that workability can be improved. Furthermore, since it has a double structure consisting of an inner cylinder and a cover, it is strong and difficult to deform.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the present invention will be described with reference to FIGS.
[0011]
FIG. 1 shows a fence post 1 to which the present invention is applied. Reference numeral 2 denotes a hollow cylinder constituting the fence post 1, which is erected on the support substrate 3 and is movably provided.
[0012]
In the hollow cylinder 2, a flexible strip 4 made of natural fiber or chemical fiber having a predetermined length is housed. The flexible belt-like body 4 can be pulled out sideways from a drawer port 5 formed along the vertical direction on the upper outer peripheral surface of the hollow cylindrical body 2.
[0013]
In addition, a cylindrical hook body 6 is fixed to the distal end of the flexible band 4, and the cylindrical hook body is in a state where the flexible band 4 is completely accommodated in the hollow cylinder 2. 6 abuts on the periphery of the drawer opening 5 so that the tip of the flexible strip 4 is not drawn into the hollow cylinder 2.
[0014]
Further, on the upper outer peripheral surface of the hollow cylindrical body 2, a locking rod 7 capable of fitting the cylindrical hook body 6 on the opposite side of the drawer opening 5 is disposed in the vertical direction. The cylindrical hook body 6 of the flexible belt-like body 4 drawn out from the other fence post 1 can be externally fitted and locked.
[0015]
Next, the connection structure of the flexible strip 4 and the cylindrical hook body 6 according to the present invention will be described with reference to FIGS.
[0016]
The cylindrical hook body 6 includes an inner cylindrical body 9 having a fitting insertion hole 8 that can be externally fitted to the locking rod 7, and an opening edge 10 in the vertical direction on the side peripheral surface. A cover body 11 having a substantially C-shaped cross section disposed so as to surround and a fitting insertion opening 12 communicating with the fitting insertion hole 8 of the inner cylindrical body 9 are fitted into the upper and lower ends of the cover body 11 respectively. And end caps 13, 13.
[0017]
Here, the inner cylindrical body 9 is made of a thin metal pipe or the like, is formed to have a length that is substantially the same as the vertical width of the flexible belt-like body 4, and the inside of the inner cylindrical body 9 can be externally fitted to the locking rod 7. The insertion hole 8 is used.
[0018]
In addition, the cover body 11 is formed by bending a thin metal plate or the like, so that a hook portion 14 having a substantially C-shaped cross section provided with an opening edge 10 in the vertical direction on the side peripheral surface, and a side portion from the opening edge 10. A pair of sandwiching plate portions 15, 15 extending integrally with each other is integrally formed. The length of the cover body 11 is substantially the same as the length of the inner cylinder body 9. Further, the inner diameter of the hook portion 14 is slightly larger than the outer diameter of the inner cylindrical body 9, but when the hook portion 14 is externally fitted to the inner cylindrical body 9, as shown in FIG. A gap S ₁ generated between the outer peripheral surface of the cylindrical body 9 and the inner peripheral surface of the hook portion 14 is set to be slightly smaller than the thickness S ₂ of the flexible belt-like body 4.
[0019]
Further, the end caps 13, 13 are formed in a pair of upper and lower sides with the same shape. Each end cap 13 includes a short cylindrical portion 16 and a lid plate portion 17 coupled to one end thereof, and is formed using a metal as a material. The lid plate portion 17 is opened with a fitting insertion hole 12 that can communicate with the fitting insertion hole 8 of the inner cylindrical body 9, and the inner diameter of the fitting insertion hole 12 is that of the fitting insertion hole 8 of the inner cylindrical body 9. It is provided with substantially the same dimensions as the inner diameter. The inner diameter of the cylindrical portion 16 is set slightly smaller than the outer diameter of the hook portion 14 of the cover body 11.
[0020]
Furthermore, a guide inclined surface 18 for facilitating the external fitting of the cover body 11 to the hook portion 14 is formed on the end surface of the cylindrical portion 16. Further, a cutout groove 19 is formed on the side peripheral surface of the cylindrical portion 16 to allow the holding plate portions 15 and 15 of the cover body 11 to be inserted when the cover portion 11 is fitted.
[0021]
Next, the connection procedure and operation will be described.
First, the distal end portion of the flexible belt-like body 4 is folded and wound around the inner cylindrical body 9 of the cylindrical hook body 6 in a U shape. At this time, the end portion folded in a U-shape in advance is sewn to make the distal end portion of the flexible strip 4 cylindrical, and the inner cylindrical body 9 is inserted through the cylindrical portion. You may make it wind the front-end | tip part of the flexible strip | belt-shaped body 4 around the inner cylinder 9. As shown in FIG.
[0022]
Next, the hook portion 14 of the cover body 11 is fitted on the inner cylindrical body 9 around which the distal end portion of the flexible belt-like body 4 is wound as described above, and the opening edge 10 of the hook portion 14 can be fitted. The flexible strip 4 is inserted, and the outer periphery of the winding portion of the flexible strip 4 is surrounded by the cover body 11. Here, as described above, the gap S ₁ between the outer peripheral surface of the inner cylindrical body 9 and the inner peripheral surface of the hook portion 14 is set to be slightly smaller than the thickness S ₂ of the flexible belt-shaped body 4. When the flexible strip 4 is interposed between the cylindrical body 9 and the hook portion 14, the hook portion 14 is slightly expanded from its original outer diameter.
[0023]
In this state, the cylindrical portions 16 of the end caps 13 and 13 are fitted on the upper and lower ends of the hook portion 14 of the cover body 11 respectively. At this time, the positions of the sandwiching plate portions 15 and 15 of the cover body 11 and the notch groove 19 of the cylindrical portion 16 are aligned so that the sandwiching plate portions 15 and 15 are inserted into the notch groove 19 during fitting. Here, since the inner diameter of the cylindrical portion 16 is set to be slightly smaller than the outer diameter of the hook portion 14, the cylindrical portion 16 is forced to the upper and lower ends of the hook portion 14 slightly wider than the original outer diameter. By externally fitting, the hook portion 14 is reduced in diameter, and accordingly, the winding portion of the flexible belt-like body 4 is strongly sandwiched between the hook portion 14 and the inner cylindrical body 9. can get. Moreover, the end cap 13 is also in a fixed state that is not easily detached from the cover body 11 by this forced fitting. Thereby, the front-end | tip part of the flexible strip | belt-shaped body 4 and the cylindrical hook body 6 are connected.
[0024]
【The invention's effect】
In the present invention, as described above, the distal end portion of the flexible belt-like body 4 is wound around the inner cylinder body 9, and the outer periphery thereof is surrounded by the cover body 11, so that the cover body 11, the inner cylinder body 9, The flexible band 4 and the cylindrical hook body 6 are held by holding the end caps 13 and 13 that hold the clamped state on the upper and lower ends of the cover body 11. Since it is connected, the design is improved as compared with the conventional one using rivets, and a strong tensile force is applied because there are no through holes or the like through which the rivets are inserted in the flexible strip 4. However, the flexible strip 4 is not broken from the connecting portion, and is fixed by fitting the end cap 13, so that a troublesome rivet caulking operation is unnecessary and the connecting operation can be easily performed. Therefore, workability can be improved. Furthermore, since it has a double structure of the inner cylinder body 9 and the cover body 11, there are excellent effects such as high strength and resistance to deformation.
[Brief description of the drawings]
FIG. 1 is a front view of a fence post to which the present invention is applied.
FIG. 2 is an exploded perspective view of an embodiment of the present invention.
FIG. 3 is a plan view showing a state in which a cover body 11 is externally fitted to an inner cylinder body 9;
4 is a longitudinal sectional view of an end cap 13. FIG.
FIG. 5 is a partially cutaway front view showing a connection state between a flexible belt-like body 4 and a cylindrical hook body 6;
FIG. 6 is a cross-sectional view of the connected state of the above.
FIG. 7 is a front view of a fence post having a conventional configuration.
FIG. 8 is an exploded perspective view of a conventional configuration.
FIG. 9 is a cross-sectional view of the connected state of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bar post 2 Hollow cylinder 4 Flexible strip 6 Cylindrical hook 7 Locking hook 8 Insertion hole 9 Inner cylinder 10 Opening edge 11 Cover body 12 Insertion slot 13 End cap

Claims (1)

A cylindrical hook body in which at least two hollow cylindrical bodies are erected at an appropriate interval, and a flexible belt-like body housed in one hollow cylindrical body is pulled out from the upper portion of the hollow cylindrical body and fixed to the tip thereof. The flexible belt-like body is stretched between the hollow cylinders by engaging and engaging with a locking rod arranged in the vertical direction on the upper outer periphery of the other hollow cylinder. In the fence post,
A substantially C-shaped cross section having an inner cylindrical body having a fitting insertion hole that can be externally fitted to the locking rod, an opening edge in the vertical direction on the side circumferential surface, and disposed so as to surround the outer periphery of the inner cylindrical body A cylindrical hook body is formed by the cover body and the end caps respectively fitted to the upper and lower ends of the cover body. The tip of the flexible belt is wound around the inner cylinder of the body, the outer periphery thereof is surrounded by the cover body, the flexible belt is inserted through the opening edge of the cover body, and the upper and lower sides of the cover body are An end cap is fitted to both ends to connect the flexible belt and the cylindrical hook body. Linked structure.

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