JPH0533539Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to barricades used at various construction sites such as construction work and road work.

(Prior Art) Conventionally, as shown in FIG. 8, this type of barricade consists of two sets of square frames 23 and 24 in which two leg rods 21 are fixedly connected by a horizontal rod 22, and a horizontal rod at the top. 25
A structure that folds or expands by rotating around its axis is generally used.

(Problem to be solved by the invention) However, even in the folded state, the barricade 26 has a shape in which two sets of square frames 23 and 24 are overlapped, so it is large and bulky, and is inconvenient to handle. However, the barricade requires a large amount of space to transport and store, which is not desirable.

This invention solves the above-mentioned conventional problems, and aims to provide a barricade that is compact when folded, easy to handle, and requires less space during transportation and storage.

(Means for Solving the Problems) In order to achieve the above object, the construction barricade of this invention has a support having a pair of sloping side parts at both ends of a horizontal bar that widen downward in a V-shape. The upper end portions of the leg rods are rotatably supported on the respective inclined sides of the supports by support shafts, and the leg rods are rotatably supported on the support shafts. A spring member for suppressing movement is attached, and the support is provided with a stopper that engages with the legs in the expanded state.

(Function) In the construction barricade of this invention, the four leg rods are rotatable around an axis perpendicular to the inclined side of the support, and this rotation allows the construction to be in the folded or expanded state. be able to. In the folded state, each leg rod can be rotated near the horizontal bar until it becomes substantially parallel to the horizontal bar, resulting in a small and compact folded state in which the entire leg has the shape of one bar. In addition, when used at a construction site, if the leg rods are rotated in the direction away from the horizontal bar, the four leg rods will be in an expanded state extending along the sloped side of the support, and the stoppers will be in the expanded state. It engages with the rod to prevent the leg rods from opening too much and maintain the expanded state. The spring member attached to the support shaft prevents the leg rod from freely rotating when the leg rod is rotated, and also prevents the leg rod from opening by itself in the folded state.

(Embodiment) An embodiment of this invention will be described below with reference to FIGS. 1 to 5.

In the figure, reference numeral 1 denotes a horizontal bar made of steel pipe, and supports 2, 2 are attached to opposite ends of the horizontal bar 1 by mounting screws 3. The support 2 has a triangular front shape, and a support tube 4 at the top that fits into the horizontal bar 1 is welded with inclined plates 5, 5 forming a pair of inclined sides that spread downward in a V-shape. The lower portions of each of these inclined plates 5 are connected and fixed by reinforcing plates 6 and 7. Reference numeral 8 denotes a supporting shaft fixedly protruding outward from this inclined plate 5, and 9 is a stopper fixedly fixed to the outer reinforcing plate 6, which is made of a steel strip with both ends curved. Reference numeral 10 denotes a leg rod made of steel pipe, and the upper end thereof is compression-molded into a flat shape together with a reinforcing tube 11 fitted into the upper part to form a flat part 10a. By inserting the support shaft 8 into the hole 12 drilled in the flat portion 10a and tightening it with the nut 15 and lock nut 16 screwed into the support shaft 8 through the washer 13 and spring washer 14, the leg rod 10 is tightened.
is attached to the support 2 so as to be rotatable around an axis 8a perpendicular to the inclined plate 5. 17 is a display board used as necessary.

When using the barricade 18 having the above configuration at a construction site or the like, each leg rod 10 is rotated around the support shaft 8 as shown by the arrow Y in FIG. Expand to the engaging position. In this state, the leg rod 10 is opened outward by a small angle α from the perpendicular line 19 to the horizontal bar 1, as shown in FIG. 4, and is maintained in the expanded position by the frictional force of the stopper 9 and the spring washer 14. It can be placed in a stable state on the ground, etc.

Also, when folding the barricade 18, use the leg 1
0 around the support shaft 8 in the direction of arrow It is.

FIG. 6 shows another embodiment of this invention, in which the leg rod 1
A support shaft 8 is protruded and fixed to a flat part 10a of the support 2, the flat part 10a is positioned inside the inclined plate 5 of the support 2, and the support shaft 8 is inserted into a hole 12 drilled in the inclined plate 5. The reinforcing plate 7 of the previous embodiment is omitted so that the leg rod 10 can be rotated in the folding direction, and the reinforcing plate 6 is used as a stopper.Other points are the same as in the previous embodiment. has. This barricade 2
0 also provides the same effects as in the above embodiment.

This invention is not limited to the above-mentioned embodiments; for example, the support 2 may be a block-like solid body, and the shapes, materials, etc. of each part may be other than those described above. Further, in the above embodiment, the spring washer 14 is used as a spring member to suppress free rotation of the leg rod 10, but other spring members such as a compression spring may be used instead. Further, as shown in FIG. 7, the stopper 9 is made of an elastic material such as a spring steel strip, and a part of the stopper 9 is formed with a removable portion 9a that elastically deforms and holds the leg rod 10 when the stopper 9 is expanded. You can also do this.

(Effects of the invention) As explained above, according to this invention, a useful barricade is provided which is compact when folded, is easy to handle, and requires less space during transportation and storage. Furthermore, the leg rods can be folded and expanded quickly and easily by rotating them around the support shaft. Furthermore, the spring member attached to the support shaft prevents the leg rod from accidentally rotating freely during rotation operation, and also prevents the leg rod from opening automatically even in the folded state. , convenient for transportation and storage. In addition, the leg rod only needs to be supported by a single support shaft on the inclined side of the support, and the rotation support structure of the leg rod is simple and the manufacturing cost is low.
It is highly durable and has few breakdowns.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a barricade in an expanded state showing an embodiment of this invention, Fig. 2 is a cross-sectional (partially cut away) view taken along line A-A of Fig. 1, and Fig. 3 is a B-B of Fig. 2. -B sectional view, FIG. 4 is a side view taken along arrow C-C in FIG. 2, FIG. 5 is a perspective view of the barricade in a folded state, and FIG. 2 is a view corresponding to FIG. 2, FIG. 7 is a view corresponding to FIG. 3 showing another embodiment of the stopper shown in FIG. 1, and FIG. 8 is a perspective view of a conventional barricade in an expanded state. 1...Horizontal bar, 2...Support, 5...Slanted plate, 8
... Support shaft, 9 ... Stopper, 10 ... Leg rod, 12
... Hole, 14 ... Spring washer, 15 ... Nut, 1
6... Locknut, 18... Barricade, 20
……barricade.

Claims (1)

[Scope of utility model registration request] Supports having a pair of inclined sides that extend downward in a V-shape are fixed to opposite ends of the horizontal bar, and the upper ends of the leg rods are attached to each of the inclined sides of this support. are rotatably supported by support shafts, and a spring member for suppressing free rotation of the leg rod is attached to the support shaft, and a stopper that engages with the leg in the expanded state is supported by the support shaft. A construction barricade made of equipment.