JPS6346499Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for security fence posts used for security fences, etc. at construction sites.

The lining board placed over the excavation work area for conduit burying etc. may be removed for a period of time depending on the circumstances of the construction work, and security fences should be installed at the opening to prevent people and vehicles from entering. It will be done. Since such security fences are generally installed for a short period of time, it is desirable that the support posts of the security fence be able to be easily attached and removed, and that they be firmly attached. FIG. 1 is an explanatory view showing an example of a security fence post used for lifting a lining board, which is attached using a through hole formed in a corner of the post.

In Fig. 1, 3a is the main body of the security fence post, and a groove is provided at the tip of a screw 11a carved in the lower part, and a rod-shaped hook 12a is rotatably attached to this groove by a shaft 13a. It is pivoted.

The fastening fitting 2a screwed onto the screw 11a is provided with a flange 20a on the hook 12a side.

21a is a tightening handle.

When attaching this security fence post to the lining plate C, rotate the hook 12a and attach the longitudinal direction to the screw 11.
After inserting the hook 12a into the through hole of the lining plate C, that is, the mounting hole _C1 of the security fence post, turn the hook 12a so that its longitudinal direction is aligned with the axial direction of the screw 11a. Position them so that they are substantially orthogonal. Next, turn the handle 21a to tighten the tightening fitting 2.
a and tighten it so that the lining plate C is pinched between the hook 12a and the flange 20a.

By the way, this security fence post is different from the clamping bracket 2a by holding the handle 21 of the clamping bracket 2a while holding the hook 12a on the back side of the lining plate C in a predetermined position.
The work of rotating a is quite troublesome, and the tightening metal fitting 2
There is a risk that the screws may come loose due to insufficient tightening of (a) or vibrations from nearby traffic, and if you lean on the security fence post in such an unstable condition,
There is a risk of falling through the opening where the lining board has been removed, which is extremely dangerous.

In view of the above, the mounting structure of the security fence post of the present invention is
It can be easily attached to and removed from the lining board, and it is designed to prevent screws from loosening easily due to vibrations, etc. It has a rod-shaped connecting rod at the tip of the connecting rod, which has screws along almost the entire length. comprising a base body to which a hook is fixed, a support body having a female thread at one end that is screwed to the connecting rod, and a tightening member screwed to the connecting rod between the body and the hook,
The rod-shaped hooks are fixed to the connecting rod at right angles and with different protruding lengths, from the joint between the connecting rod and the hook on the long protruding side of the hook to the tip on the short protruding side of the hook. The dimensions of the hook are selected to be smaller than the diameter of the circular mounting hole drilled in the plate for mounting the security fence, and a locking pin is provided on the upper surface of the long protrusion side of the hook. The dimension from the joint between the connecting rod and the hook on the side of the short protrusion of the lock pin to the tip of the long protrusion of the hook is approximately equal to the diameter of the mounting hole, and the total length of the hook is longer than the diameter of the mounting hole. The lock pin is housed in the mounting hole, and the mounting plate is sandwiched between the hook and the tightening member.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Fig. 2 is a partially cutaway perspective view of an embodiment of the present invention, and Figs. 3 and 4 are longitudinal cross-sections for explaining attachment of an embodiment of the security fence post of the present invention to a lining board, respectively. FIG. 3 shows the state during installation, and FIG. 4 shows the state after installation.

Identical symbols are the same.

In FIG. 2, reference numeral 1 denotes a base body, on which a rod-shaped hook 12 is fixed by welding or screwing in a substantially T-shape to the lower end of a connecting rod 11 which is threaded along its entire length. A tightening handle 21 is attached to the connecting rod 11.
A disk-shaped tightening plate 2 to which is fixed is screwed together, and a pillar body 3 made of a metal tube to which a nut 31 is fixed to the lower end is also screwed. The entire length of the hook 12 is longer than the security fence mounting hole D of the lining plate C (the third
(see figure), and is fixed to the connecting rod 11 with an offset in the longitudinal direction, and a short protrusion 121 and a long protrusion 123 are formed.

A lock pin 124 is fixed to the upper surface of the hook length protrusion 123 near the connecting portion of the connecting rod 11.
The length l ₂ between the end surface 125 of the lock pin 124 and the side peripheral surface 112 on the short protrusion side of the connecting rod 11 is the third
As shown in the figure, it is slightly smaller than the diameter D of the security fence mounting hole _C0 . The end surface 125 of the lock pin 124 and the side circumferential surface on the short protrusion 121 side of the connecting rod 11 are arranged so as to face the peripheral wall surface of the mounting hole C ₀ , that is, the center of the mounting hole C ₀ and the center of the connecting rod 11 is eccentric, so that even if the clamping plate 2 is rotated when mounting the base 1 on the lining plate C, the base 1 is prevented from rotating together with the clamping plate 2, and the clamping plate 2 is not rotated. Even if the support body 3 is turned after the attached plate 2 is tightened, the base body 1 is prevented from turning. Therefore, the base body 1 can be easily attached to the lining plate C. The short protrusion 121 is attached to the hook 1 as shown in FIG.
2 to pass through the mounting hole _C0 , short protrusion 1
The dimension l ₁ (Fig. 2) from the end surface 122 of the connecting rod 11 to the side peripheral surface 111 on the long protrusion side of the connecting rod 11 is the lining plate C.
The diameter of the mounting hole _C0 (Fig. 3) is made slightly shorter than the diameter of the mounting hole C0 (Fig. 3). A stopper 113 fixed to the tip of the connecting rod 11 is used to prevent the column main body 3 from coming off.

To attach the above-mentioned security fence support to the lining plate C, first move the tightening plate 2 toward the support main body 3,
As shown in FIG. 3, the long protrusion 123 of the hook 12 is introduced into the mounting hole C ₀ while being tilted, and the short protrusion 121 is inserted into the mounting hole C ₀ while the base 1 is vertically erected. Then, pull up the base body 1 so that the lock pin 124 fits into the mounting hole _C0 , rotate the tightening plate 2, and tighten the lining plate into the hook 1.
2 and the clamping plate 2 to fix the base 1 to the lining plate C.

As described above, in the security fence post mounting structure of the present invention, the hook 12 provided with the lock pin 124 is fixed to the base body 1 in a right angle direction with an offset in the longitudinal direction. Therefore, when installing a security fence post, all you need to do is tilt the post, insert the hook 12 into the mounting hole _C0 , stand the post up, and turn the clamping plate 2. When clamping C, the mounting hole
Since the base 1 does not rotate within C ₀ , the lining plate C
Easy to install and remove. Further, since the support main body 3 is further screwed onto the base body 1 which is fixed by the screwing of the tightening plate 2, the screws will not easily loosen even after installation due to vibrations or the like. In addition, by providing a through hole 32 in the upper part of the support main body 3, a metal rod can be passed through the through hole 32 and the support main body 3 can be inserted.
It is easy to fix the support main body 3 by turning the
Another advantage is that the rope can be stretched using the through hole 32.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional example of a security fence post;
FIG. 2 is a partially cutaway perspective view of an embodiment of the security fence post of the present invention, and FIGS. 3 and 4 are longitudinal cross-sectional views for explaining the mounting of the embodiment of the present invention, respectively. In the figure, 1 is a base, 11 is a connecting rod, 12 is a hook, 2 is a tightening plate, 3 is a support body, 31 is a nut, and 124 is a lock pin.

Claims (1)

[Scope of utility model registration request] A base body having a rod-shaped hook fixed to the tip of a connecting rod having a thread along substantially the entire length, a support main body having a female thread at one end to be screwed to the connecting rod, and the above-mentioned hook between the main body and the hook. and a tightening member screwed onto the connecting rod, the rod-shaped hooks are fixed to the connecting rod in a direction perpendicular to the connecting rod and have different protruding lengths, and the connecting rod on the long protruding side of the hook The dimension from the joint with the hook to the tip of the short protruding part of the hook is selected so that it is smaller than the diameter of the circular mounting hole drilled in the plate for mounting the security fence, and the long protruding part of the hook is A lock pin is provided on the upper surface of the side, and the dimension from the joint between the connecting rod and the hook on the side of the short protrusion of the hook to the tip of the lock pin on the side of the long protrusion of the hook is approximately equal to the diameter of the mounting hole. , and the entire length of the hook is selected to be longer than the diameter of the mounting hole, and the locking pin is housed in the mounting hole, and the mounting plate is sandwiched between the hook and the tightening member to be mounted. Strut mounting structure.