US2976020A - Collapsible barricade - Google Patents

Description

March 21, 1961 H. ANSTEY COLLAPSIBLEBARRICADE FiledFeb. 9, 1960 IN VENTOR. @Q/ Z latent/195 226 HARRIS ANSTEY United States Patent COLLAPSIBLE BARRICADE Harris Anstey, 33 Winchester Place, East Haven, Conn.

Filed Feb. 9, 1960, Ser. No. 7,594

2 Claims. (Cl. 256-64) My invention relates to barricades, such as employed for guarding excavations, marking the closing of a street for repairs, defining traflic lanes and work areas, etc. It has an additional utility of serving as a portable trestle for supporting temporary platforms and the like.

One of the important objects of my invention is to provide a collapsible barricade, which can be easily disassembled into a compact form, convenient to handle and to transport and requiring minimum space in storage.

Another important object of my invention is to provide a collapsible barricade, which can be easily assembled on the field into a securely joined sturdy structure possessing great stability and wind resistance combined with moderate weight.

Another important object of my invention is to provide a collapsible barricade, which can be assembled and disassembled without tools and without the need of extra parts, such as bolts, screws, pins, hinges, etc. which may be easily displaced causing delay in the setting up.

Another important object of my invention is to provide collapsible barricades, which can be conveniently interlocked with each other, offering thereby exceptionally great versatility in their application in the encircling of areas of greatly varying shapes and even infunctioning as swinging gates to admit working vehicles into the enclosed areas.

A further object of my invention is to provide a collapsible barricade which is simple in construction and economical in manufacturing.

Other objects and advantages of my invention will be apparent during the course of the following description.

In the accompanying drawing, forming a part of the present application, wherein for the purpose of illustration is shown -a preferred form of my invention,

Figure 1 is an end view of the preferred form of my collapsible barricade,

Figure 2 is a side view of the same,

Figure 3 is an end view of the collapsed leg assembly,

Figure 4 is a side view of preferred form of the cross bar,

Figure 5 is an enlarged view of the upper portion of the leg assembly,

Figure 6 is an end view of my collapsible barricade with an interlocking cross bar.

Referring to the drawing, the numeral 1 designates the completely assembled barricade illustrated in Figs. 1 and 2. This is composed of three easily detachable elements: the two leg assemblies, and the interconnecting cross bar, designated by 2 and 3, respectively. Each of these leg assemblies is composed of two tubular legs, a stationary leg 4 and a collapsible leg 11, which spread apart in the normal or open position, as shown in Fig. l. to give a secure footing to the barricade, but can be collapsed into a compact form, shown in Fig. 3, for convenient transportation and storing.

The construction of the leg assembly is more clearly shown in the enlarged view of Fig. 5. The stationary leg 4 is tubular with an open upper end forming the 'ice socket 7, which :has an important function in the practical use of my barricade.

In the preferred form of my'=barricade, illustrated, the

stationary leg 4 is angularly bent, consisting of a straight upper portion 5 and a straight lower portion 6, forming an angle. Secured to the upper portion 5 of the stationary leg 4 is the connecting plate 8, quadrangular in shape and being disposed substantially parallel to the axis of the upper portion 5 of the stationary leg. Secured to this connecting plate 8 is a tubular sleeve 9, disposed coaxially with the upper portion 5 of the stationary'leg. This sleeve 9 is provided at its lowerend with two notches 10 in diametrically opposing positions.

The collapsible leg 11 of the leg assembly 2 is tubular and angularly bent in the form illustrated, and is composed of a straight upper portion 12 and a straight lower portion 13, forming an angle. The upper end of the upper portion 12 is open, forming the socket 14. The

upper portion 12 is rotatably mounted within the sleeve- 9, permitting the turning of the collapsible leg 11 from the normal or open position, shown in Fig. 1, into the collapsed position, shown by the full lines in Fig. 3, for easier transportation and storage. Adjacent to the lower end of the sleeve 9 the collapsible leg 11 is provided with a locking pin 18, so disposed that it will engage the notches 10 of the sleeve 9 when the collapsible leg =11 is in the normal or open position and also when leg 11 is in the collapsed position, with the result, that the rotated leg 11 will "automatically snap into these positions and will tend to remain in these positions, resisting inadvertent turning of the collapsible leg 11. I

Firmly secured to the upper end of the collapsible leg 11 is a ring shaped collar 15 (see Fig. 5). Adjacent to this collar 15 is the rotary lock 16, rotatably mounted over the upper portion 1'2 of the collapsible leg 11. Mounted on this upper portion 12 and interposed between the sleeve 9 and the rotary lock 16 is the compression spring 17. This spring 17 has a double function; it presses the rotary lock 16 against the collar '15 causing thereby suflicient .friction between them to resist the inadvertent turning of this rotary lock 16. As a secondary function, the spring 17 presses the locking pin 18 against the lower end of the sleeve 9, thereby making the locking effect of the notches 10 more effective. I Fig. 4 shows the construction of the cross bar 3 which, in the preferred form illustrated consists of a wooden plank or board. The essential parts of this cross bar are the end hooks 19, usually made of steel and attached to the cross bar by means of the U-shaped fittings 20. In alternative forms of my invention this cross bar 3 may be made entirely of metal, such as structural steel or steel piping; the only essential feature being that the end book I19 must fit over the connecting plate 8 of the correspinding leg assembly, as shown in Fig. 5, and the end book 19 must be locked in position when the rotary lock 16 is turned over the connecting plate 8 and over the end hook 19. This convenient and secure locking of the end hook 19 in the assembled barricade is an important feature of my invention, which makes my barricade a sturdy construction standing even rough handling without the .danger of disconnection.

Fig. 6 illustrates another important feature of my collapsible barricade by showing the utilization of the socket 7 for the connection of an additional cross bar 3. By the insertion of an end hook 19 into the sockets 7 and 14 of each leg assembly each assembled barricade offers four connections for additional cross bars. This feature'enables the operator to interconnect and interbar may serve as a swinging gate, with the end hook 19 and the socket 7 or 14 functioning as a hinge.

In the preferred form of my invention illustrated the legs of the barricade are angularly bent; in alternative forms of my collapsible barricade the ,legs may be. bent in a curve, provided only that the two legs of a leg a sembly diverge downwardly in the normal position or" the collapsible leg, and the same legs converge or are substantially parallel when said collapsible leg is rtated into its collapsed position.

The operation of my invention is as follows: The leg assemblies 2 and cross bar 3 are transported to the place of work in the form shown in Figs. 3 and 4 respectively. The-leg assemblies are then changed from the collapsed position into the normal or open position by rotating the collapsible leg 11 until the locking pin 18 snaps into the corresponding groove 10. Then, the end hook 19 of the cross bar is placed over the connecting plate 8 of the corresponding leg assembly, and the rotary lock 16 is turned over the and hook 19, as shown in Figs. 1 and 5, completing the assembly of the barricade. Finally, the thus assembled barricades are interconnected by additional cross bars, in the manner shown in Fig. 6, to obtain the required enclosure.

I claim:

1. A barricade comprising a pair of leg assemblies, each leg assembly having an angularly bent, tubular, stationary leg, with a hollow upper portion forming a socket; a connecting plate secured to said upper portion of the stationary leg substantially parallel to the axis of said upper portion of the stationary leg; a tubular sleeve secured to said connecting plate coaxially with the said upper portion of the stationary leg, the 1ower end of said sleeve being provided with opposing notches; an angularly bent, tubular, collapsible leg, With hollow upper portion forming a socket, and passing through within said sleeve, permitting the rotation of said collapsible leg from the collapsed position into the open position; a collar secured to the upper end of said collapsible leg; a rotary lock rotatably mounted over the upper portion of said collapsible leg adjacent to said collar; a compression spring interposed between said rotary lock and said sleeve; a locking pin passing through and secured to said collapsible leg, and being so arranged as to engage said notches of the sleeve in said two positions of the collapsible leg, as a result of the action of said compression spring, thereby retaining said collapsible leg in said two positions; a cross bar having a pair of end hooks, each formed to engage the connecting plate of one of said leg assemblies, and being locked in the engaged position when said rotary lock is turned over said connecting plate.

2. A barricade comprising a pair of leg assemblies, each leg assembly being composed of a tubular stationary leg having an upper portion and a lower portion forming an angle; a connecting plate secured to said upper portion of the stationary leg parallel to its axis; a tubular sleeve secured to said connecting plate substantially coaxially with the upper portion of said stationary leg, the lower end of said sleeve being provided with opposing notches; a tubular collapsible leg having an upper portion and a lower portion forming an angle, said upper portion of the collapsible leg being rotatably mounted within said sleeve, permitting it to be rotated between the collapsed position and the open position; a collar secured to the upper end of said collapsible leg; a rotary lock, having an open and a closed position, being mounted over the upper portion of said collapsible leg adjacent to said collar; a compression spring, interposed between said rotary lock and said sleeve; a locking pin secured to said collapsible leg, adjacent to the lower end of said sleeve, engaging said notches in the collapsed and open positions of said collapsible leg; a crossbar having end hooks, each formed to engage the connecting plate of one of said leg assemblies, and being locked in this position when said rotary lock is turned into the closed position.

References Cited in the file of this patent UNITED STATES PATENTS

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