JPS5833132Y2 - road safety fence - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a road safety fence that is foldable for transportation and storage, and that can maintain a constant X-shaped configuration at all times during use.

In conventional road safety fences, for example, A-shaped fences consisting of a pair of opposing pedestals connected by horizontal connecting pieces were installed at work sites on roads to ensure work safety. ,
If workers, passersby, or cars passing near the work site come into contact with a part of the road safety fence, they may tip or fall, damaging the safety fence or causing unexpected damage to people. He was used to causing injuries.

Therefore, in order to avoid such unexpected injuries, a road safety fence expanded in an X-shape was proposed, and it was possible to install it more stably than the A-shape mentioned above. Since the model has a one-piece structure made entirely of steel plates, there are no particular problems when using it at a work site, but after the work is completed, it may be transported to another location, stored in a warehouse, or temporarily stored by the road. Road safety fences require unnecessary space, are inconvenient to handle, and are sometimes damaged due to the degree of damage, even when other parts are usable. When the product loses its function, it is forced to be disposed of, resulting in unnecessary expense for the consumer and a significant loss in terms of materials.

Therefore, this invention rectified the above-mentioned drawbacks, and was designed to be foldable for transportation and storage, making it easy to handle.In addition, when in use, the abutting part of the restraining piece is rotatably supported by the rotating frame. The present invention aims to provide a road safety fence in which the holding frame and rotating frame can be kept in a constant X-shape at all times by bringing the holding frame into contact with the upper surface of the holding frame.

An embodiment of this invention in use will be described below with reference to the drawings. An appropriate number (three in this case) of long holding frames A having an L-shaped cross section are arranged in parallel at a predetermined interval, and the front end (the 1
In FIG. 2, the right side is the front, and the left side is the rear.

) are welded with plate-shaped connecting pieces 1, while holding frames A on both sides,
Both ends of a hollow support shaft 3 are fixed to each of the bent portions 2, 2 of A by welding or other appropriate means, and the central holding frame A is fixed.
The holding frame A
, the connecting piece 1 and the support shaft 3 are integrally constructed.

On the other hand, long rotating frames R having a rectangular cross section similar to the holding frame A are arranged in parallel with each other with a small gap C between them, and the rotating frames R and R on both sides are A cover 5 is positioned inside each of the holding frames A and A on both sides, and a support shaft 3 is placed on the upper surface of the center of each of these rotating frames R, and the cover 5 fits and covers the upper part of this support shaft 3. is attached to the rotating frame R with fasteners i such as bolts and nuts, and a connecting piece 6 having a substantially V-shaped cross section is attached to the rotating frame R, R, and the front end and upper surface of the rotating frame R with bolts or nuts. It is attached with a fastener i like a nut, and the sign plate P can be attached and detached together with the connecting piece 1 on the holding frame A side, and a plate-shaped connecting plate 7 is attached to the upper surface near the rear end of the rotating frame R. It is attached to fasteners such as bolts and nuts.

Furthermore, the bent portions 8.
Suspension pieces 9 and 10 are fixed and suspended below 8 at a predetermined interval, a support rod d such as a bolt is inserted and placed in each of these suspension pieces 9 and 10, and a cotter pin e is inserted behind the suspension pieces 9 and 10. is inserted to prevent the support rod d from detaching from the suspension pieces 9, 10, and a small gap f, f is provided between the suspension pieces 9, 10 to form an abutment portion 11 having a triangular cross section. The restraining piece S having the holding frame A is rotatably suspended from the support rod d, and the abutment part 11 is rotated during work to close the holding frame A as shown in FIGS. 2 and 4.
It can be brought into contact with and held on the top surface of the holder.

Also, holding frames A on both sides. A ring-shaped body 12.12 is planted and fixed on the outside of each bent part 2, 2 of A, and these ring-shaped bodies 12.1
Chains 13 and 13 are hung from each of 2, so that several road safety fences of the present invention can be connected, and the rear ends of the holding frames A and A on both sides and the rotating frame R9R are each equipped with a free wheel with a brake. 1
4 and 15 are attached, and it is time to move to another location = flight.

However, when the present product is not in use or stored, the free wheels 14 and 15 may be placed downward and in contact with the ground, floorboard, etc.

Since this device has the above-mentioned configuration, when not in use, the free wheels 14 and 15 are placed downward and in contact with the ground, floorboard, etc., but when in use, these free wheels 14 and 15
With the rotating frame R on the ground, grip the rotating frame R, rotate it in an X shape, expand it until it stops, then rotate it at a right angle, and attach it to each of the rotating frames R and H on both sides. The restraining pieces S, S,
When rotating around the support rod d and coming into contact with and stopping the upper surface of the holding frame A as shown in FIGS. 2 and 4, the holding frame A and the fixed frame R are integrally connected. Therefore, as shown in Figure 1, it is always held in an X-shape during work, so it can be used in a predetermined position without moving unnecessarily, not only on flat ground but also on slopes, undulating terrain, etc. Work safety can be well maintained.

Moreover, after the work is completed, if the stopper piece S is grasped and the abutment part 11 is removed from the upper surface of the holding frame A, the rotating frame R can freely rotate relative to the holding frame A. It can be rotated about the shaft 3 and placed in parallel with the holding frame A, making it easy to handle during transportation, storage, etc.

Note that transportation can be carried out quickly by placing the free wheels 14 and 15 on the ground.

According to this invention, the restraining piece with the abutting part is rotatably attached to the rotating frame which is rotatably attached to the holding frame, so when used at a work site, it is possible to After being held in an X-shape with the rotating frame, when the abutting part is brought into contact with the holding frame by rotating the stopper piece, the holding frame and the rotating frame are integrally connected, and the brake is applied as a whole. Since the machine will be in a state where it appears to be under the action of the robot, there is no danger of it moving accidentally even on slopes or undulating terrain, so the position of the work site can be accurately confirmed at all times, and the safety function can be fully demonstrated. In addition, since the rotating frame is parallel to the holding frame with a small gap and can be rotated around the support shaft, it is difficult to hold the restraining piece during transportation, storage, or storage on the road side. By releasing the contact with the frame, both the rotating frame and the holding frame can be folded into a rectangular shape, and the storage space can be expanded into an X-shape without unnecessary expansion. Opening and folding operations are extremely easy, and the stopper piece is rotatably fitted into a support rod that can be inserted into a pair of suspension pieces fixed to the rotating frame.
Moreover, since it is interposed between the hanging pieces, there is no risk of the stopping piece falling off unexpectedly, and there is no complication in rotating the stopping piece, and the overall structure is similar to that of the conventional one. Since it does not cause particularly significant complications compared to
It has practical benefits such as being robust, inexpensively manufactured, and able to be supplied in large quantities to customers.

Although the contact portion 11 of the restraining piece S has a triangular cross section, it is not limited to this, and may have a flat plate shape or any other suitable cross-sectional shape.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Figure 1 is a partially cutaway vertical front view of the device in use, Figure 2 is a partially cutaway plan view of the same, and Figure 3 is an enlarged view of the L portion of Figure 1. 4 is an enlarged sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is an enlarged sectional view taken along line IV--
It is a v-line enlarged sectional view. A... Holding frame, R... Rotating frame, S...
...Blocking piece, C...Gap, d...
Support rod, 3... Support shaft, 5... Cover 9
．． 10... Suspension piece, 11... Contact part.

Claims (1)

[Scope of utility model registration request] A cover is attached to the upper surface of the rotating frame, which is arranged parallel to the holding frame with the supporting shaft fixed thereto with a small gap, and the rotating frame and the holding frame form an X-shape by the loose engagement of the cover with the supporting shaft. In road safety fences that can be expanded into
A support rod is inserted into the pair of suspended suspension pieces, and the abutting portion of a restraining piece rotatably fitted to the support rod and interposed between the suspension pieces is brought into contact with the upper surface of the holding frame. Road safety fence.