JP3255401B2 - Construction moving fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a construction movable fence which is temporarily installed in a section boundary area to divide an off-limits area at the site of road construction or construction work. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction movable fence capable of reliably and easily performing an operation of inserting and removing a blockade plate mounted on a supporting column member, and effectively suppressing rattling at the time of insertion.

[0002]

2. Description of the Related Art As is well known, at a road construction site or a construction site, a moving fence capable of blocking entrance traffic is temporarily installed in order to prevent danger and prevent entry of unrelated persons who may hinder construction. And take measures to specify the restricted areas.

[0003] By the way, since it is difficult for this type of moving fence to fall down due to the wind or a small impact, a hurdle-shaped frame formed by welding steel is generally used. therefore,
Conventional construction fences are very inconvenient to transport, store and store because they are heavy and bulky.

[0004] Under such circumstances, as a field-assembly-type moving fence, a connecting member such as a blockade plate or a pole can be assembled and disassembled by being engaged with an engaging portion on a pair of columns from above. A moving fence for construction has been proposed as described in Japanese Patent Application Laid-Open No. 7-173807.

[0005] However, in the moving fence as described above,
Although it is convenient for transportation and storage, and the installation work is also easy, since the coupling structure is such that the engaging concave portion of the upper part of the support and the engaging convex portion of the connecting member are simply engaged with the concave and convex, the connecting member When the size of the engaging projection is equal to or larger than the size of the engaging recess, the entire engaging surfaces are in surface contact with each other, and the frictional resistance becomes extremely large, so that the connecting member can be pulled out and inserted. On the other hand, if the size of the engaging projection is smaller than the size of the engaging recess, on the other hand, the two engagement surfaces are hardly in contact with each other. In addition, the rattling at the engaging portion is large, and the sense of stability of the moving fence is deteriorated. In order to achieve the optimum fitting state in such a surface contact type connection structure, the engaging concave portion and the engaging convex portion must be processed with high precision, and there is a problem that the processing cost increases.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the conventional moving fence for construction, and has been made in view of the fact that a blockade plate mounted on a support member is inserted and removed. An object of the present invention is to provide a construction movable fence capable of reliably and easily performing an operation and effectively suppressing rattling at the time of insertion.

[0007]

Means adopted by the present inventor for solving the above technical problem will be described below with reference to the accompanying drawings.

Namely, the present invention, the recess 11, 11 on the upper front and rear surfaces
A synthetic resin support column 1 with; recess 11, of the support column 1
11 is fixed to itself in a locking fitting 2 having an insertion freely落Komi slits 21 from the top; this locking fitting 2
Required width to be detachably fitted and connected to the recessed slit 21
And a blockade plate body 3 having a plurality of projections 32 on the protruding end surface and / or the thickness side surface of the thick-tapered mortise-shaped fitting portion 31 formed at both ends thereof. The blockade plate 3 has a thick tenon shape.
The fitting portion 31 of which is fixed to the recess 11, 11 of the strut 1
By inserting it into the drop slit 21 of the latch 2,
Wherein the plurality of protrusions 32 formed in the fitting portion 31 is in point contact,
It is characterized in that the above-mentioned problem has been solved by adopting a means capable of providing an appropriate friction resistance when the fitting portion 31 is inserted and removed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings. FIG. 1 is an overall perspective view showing a state in which a moving fence for construction according to a first embodiment of the present invention is assembled, and FIG. 2 is a partially enlarged perspective view showing an upper portion of a support of the moving fence in the first embodiment. , FIG. 3 is a partially enlarged perspective view showing a configuration of a lock fitting fixed to an upper portion of the moving fence,
FIG. 4 is a front view of the moving fence with a portion of the blockade plate omitted, FIG. 5 is a partially omitted plan view of the blockade plate seen from above, and FIG. 6 is an end of the blockade plate. FIG. 7 is an overall perspective view showing a state in which a moving fence for construction according to a second embodiment of the present invention is assembled.

First, a construction fence according to a first embodiment of the present invention will be described with reference to FIGS. In the figure, what is designated by reference numeral 1 is a skirt-spreading frame-shaped hollow support made by blow molding ultra-high-molecular-weight polyethylene resin, which is lightweight and rich in weather resistance and impact resistance. Two recesses 11 are formed on both sides of the upper portion of the support body 1 in a back-to-back state (see FIG. 3), and the bottoms of the recesses 11 communicate with the recesses 11. Insertion holes 11a
・ ・ 6 are established in total. All these insertion holes 11a
By passing bolts 12, 12 ... through the bolts 11a ..., respectively, and screwing nuts (not shown) from the opposite side, the later-described locking fittings are fixed (see Fig. 2).

A projection 13 and a recess 14 capable of receiving the projection 13 are formed in pairs on the lower side of the recess 11 of the support 1 and on both side surfaces of the leg, respectively.
By overlapping and fitting the support members 1 with each other in the recess 13 and the recesses 14, a plurality of support members 1, 1,...

What is indicated by reference numeral 2 is a lock fitting fixed to the recesses 11 of the support body 1. This latch 2
A vertically long recessed slit 21 is formed at the top of
A wide portion with a wide slit width is provided at a predetermined position of the slit 21.
22 ・ 22 are formed. Further, bolt holes 23, 23,... Then, as described above, the locking fitting 2 is bolted to the concave portion 11 of the column body 1 so as to open upward between the upper portion of the locking fitting 2 and the bottom surface of the concave portion 11. A space is created, and a later-described blockade plate is removably fitted in the fitting space.

In FIGS. 4 to 6, what is indicated by reference numeral 3 is a blockade which is removably fitted to the above-mentioned locking metal fitting 2 and serves as a transverse member suspended over a pair of columns 1.1. It is a plate body and is made hollow by blow molding an ultrahigh molecular weight polyethylene resin. At both ends of the blockade plate 3, fitting portions 31 to be fitted into the upper portions of the support members 1 from above are formed.
33 are formed to form a sickle tenon (see FIG. 5). The protruding end surface 31a of the fitting portion 31 has a blockade plate 3
Are projecting at equal intervals in the longitudinal direction of the fitting portion 31.
In the thickness direction of the blockade plate 3, five protrusions 32, 32,... Of the same size are protruded from the side surfaces 31b, 31b alternately at equal intervals.

The fitting portion 31 of the blockade plate 3 having the plurality of projections 32 projecting from the support 1
When the fittings 32 are fitted into the recessed slits 21 of the upper fitting 2 in a sickle-joint manner, the projections 32, 32,.
The bottom surface and the inner surface of the locking fitting 2 are in point contact with each other in a scattered manner, so that the frictional resistance when the fitting portion 31 is inserted and removed can be appropriately adjusted, and the operation of removing and inserting the blockade plate 3 can be performed reliably and easily. Becomes possible. Thus, the fitting portion 31
By making the outer convex portions 32, 32,... In point contact in a scattered manner, fine adjustment of the frictional resistance of the fitting portion 31 becomes easier as compared with the conventional surface contact type fitting connection structure. . That is, in the conventional surface contact type fitting structure, although it is necessary to increase the dimensional accuracy of a portion where both fitting members are in surface contact in order to make the fitting members optimally fit together, In the point contact type fitting structure of the present embodiment, it is not necessary to increase the dimensional accuracy of the fitting portion 31 itself of the blockade plate body 3, and the convex portions 32, 32. .. Can be optimized by simply adjusting the number, size, forming position, and the like of.

Also, convex portions 32, 32,... Of the outer surface of the fitting portion 31.
Since the gap at the fitting portion is filled, the rattling at the time of fitting the blockade plate 3 can be effectively suppressed, and the sense of stability of the moving fence can be improved. Further, in the present embodiment, since a plurality of protrusions 32 of the same size are arranged at equal intervals, uniform frictional resistance is provided at the contact portion of each protrusion 32 at the fitting portion. 31 can be given to the whole, and the operation of removing and inserting the blockade plate 3 can be performed smoothly.

The constricted portion 33 of the blockade plate 3 is
Are formed on both sides at predetermined positions, respectively, and each of the projecting ribs 33a, 33a is elastically sandwiched between the widened portions 22, 22 of the slit 21 of the locking metal fitting 2. .
Further, as shown in FIG. 4, below the constricted portion 33 of the blockade plate 3, a reinforcing plate 34 capable of preventing the movable fence from rolling is provided.
Are provided at the lower part of the blockade plate body 3 with hook holes 35 capable of suspending and supporting various components such as a display board. Further, on both sides of the body of the blockade plate 3, a black surface portion formed by applying a black paint and a yellow surface portion formed by attaching a high-brightness yellow reflection sheet are alternately repeated in an oblique state. Display surface is formed.

Next, a construction moving fence according to a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment in that a pole 5 is added in addition to the blockade plate 3 as a horizontal member that is laid on the upper portions of the columns 1,. In the support 1 of the second embodiment, the clamp 4 is located near the locking fitting 2 fixed to the concave portion 11 on the upper part thereof.
A pole 5 (in the present embodiment, a steel pipe called a single pipe) can be attached by the clamp 4. A clamp 4 is also provided on the upper surface of the leg of the support 1, and a pole 5 can be attached in the same manner.

As described above, the blockade plate 3 and the pole 5
Since these can be used together, these horizontal members can be selectively used according to the situation of the construction site, and a movable fence for construction that is wide and easy to use can be obtained.

Although the embodiments of the present invention are generally as described above, the present invention is by no means limited to the above-described embodiments, and various modifications are possible within the scope of the claims. For example, in the present embodiment,
A plurality of protrusions 32 are provided on the protruding end surface 31a of the fitting portion 31 of the blockade plate body 3 and on all outer surfaces of both the thick side surfaces 31b.
.. Are formed, but it is also possible to form a required number of convex portions 32, 32,... Only on any of the outer surfaces, if necessary. Although the support body 1 and the blockade plate 3 use a synthetic resin molded body having a hollow structure, a synthetic resin molded body having a hollow structure or a molded body made of a material other than synthetic resin can also be used. Of course, it goes without saying that any of these modifications belong to the technical scope of the present invention.

[0020]

As described above with reference to the embodiments,
According to the present invention, a plurality of projections are protruded at a predetermined interval from a fitting portion of a blockade plate that is laid horizontally on an upper portion of a support that constitutes a movable fence, and a latch for the support is provided. Pickpocket
Before being formed in the fitting part 31 by being inserted into the
When the plurality of protrusions come into point contact with each other,
Means that can provide moderate frictional resistance to
Thus, the operation of inserting and removing the blockade plate can be performed reliably and easily. Moreover, since the buried gap of the fitting portion by a plurality of protrusions projecting from the fitting portion outer surface of the blockade plate member, and can be effectively suppressed backlash when fitting the blockade plate member movement It can improve the sense of stability of the fence and has a vertical width
Prompt the pedestrian on the display surface of the blockade board
It is also possible .

Further, according to the present invention, a blockade plate and a pole can be used together as a transverse member suspended over an upper part of a support, so that these transverse members can be used according to the situation of a construction site. Can be used selectively, and a movable fence for construction that is versatile and easy to use can be obtained. Therefore, the practical value at the site of road construction and construction work is extremely large.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which a moving fence for construction according to a first embodiment of the present invention is assembled.

FIG. 2 is a partially enlarged perspective view illustrating an upper portion of a support body of the movable fence according to the first embodiment.

FIG. 3 is a partially enlarged perspective view showing a configuration of a locking fitting fixed to an upper portion of the moving fence.

FIG. 4 is a front view in which a part of a blockade plate of the moving fence is omitted.

FIG. 5 is a partially omitted plan view of the blockade plate viewed from above.

FIG. 6 is an end view showing a fitting portion at an end of the blockade plate.

FIG. 7 is an overall perspective view showing a state in which a moving fence for construction according to a second embodiment of the present invention is assembled.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support body 11 Concave part 11a Insertion hole 12 Bolt 13 Protrusion 14 Depression 2 Locking fitting 21 Drop-in slit 22 Widening part 23 Bolt hole 3 Blockade plate 31 Fitting part 31a Protruding end face 31b Thick side 32 Convex part 33 Constricted part 33a Projection Rib 34 Reinforcement plate 35 Hook hole 4 Clamp 5 Pole

Claims (3)

(57) [Claims] 1. Synthetic tree having concave portions 11 on the front and rear surfaces
Fat pillar body 1; this is fixed in the recess 11, 11 of the support column 1 is, insertion freely落Komi slit from the top to itself 21
Anchor fitting 2 with; with a display surface of a required width to be freely fitted and connected detachably to the depressed slits 21 of the anchor fitting 2
And a blockade plate body 3 having a plurality of projections 32 on the protruding end face and / or the thickness side face of the thickened tenon-shaped fitting part 31 formed at both ends thereof. is composed of the blockade plate body fitting portion 31 of the flared tenon type 3, the hooking bracket 2 fixed to the recess 11, 11 of the strut body 1 落込
By inserting it into the slit 21,
Said plurality of protrusions 32 are in point contact which, for construction moving fences, characterized in that imparting suitable frictional resistance during insertion and removal of the fitting portion 31. 2. A predetermined position of the recessed slit 21 of the latch 2
While the widened portion 22 with a wide slit width is formed in the
At the bottom of the thickened tenon-shaped fitting part 31 to be inserted there
Is formed with a protruding rib 33a.
When the fitting part 31 is inserted into the
The moving fence for construction according to claim 1, wherein a is elastically clamped . 3. A blockade plate 3 is provided on the support 1
Clamp 4 is juxtaposed to laterally placed the pole 5 in parallel to the
Has been has claim 1 or 2 for construction moving fence according.