RU2817365C1 - Road sign fixing device - Google Patents

Abstract

FIELD: road construction; installation of road signs.

SUBSTANCE: disclosed is a device for fixing a road sign by flanging, relates to devices intended for attachment to supports of road signs and other similar information surfaces. Road sign fastening device for its perimeter flanging, comprising a clamp, having in the middle a sign retention assembly, consisting of a clamping part — a platform, and a support part — an insert, in the L-shaped gap between which the fixed part of the sign is clamped, and the insert has its support base on the pillar in the form of paired bulges on it and side walls adjacent to the sides of the platform, having the same width with it, which above flanging have cut-off elements, which are bent with support against side walls of insert in their smaller in height stepped part for fastening on flanging of platform and insert. Assembly includes a platform with its lateral sides and an insert with its walls adjacent to these sides. Assembly is the middle part in two unified links of the clamp. Length of the platform is not less than 0.75 of the diameter of the pillar, and its clamping part is separated by bites from its lateral sides.

EFFECT: changing only the shape of parts of this type of attachment for signs, which are made from thin sheet steel with area of up to one square meter and wind load of up to 100 kg, provision of their reliable fixation on supports and simplification of their installation on the pillar due to preliminary fixation of the clamp on the sign flanging.

3 cl, 4 dwg

Description

A device for attaching a road sign to a flange refers to devices designed for attaching road signs and other similar information surfaces to supports. In practice, such devices usually consist of two units - a bracket attached to the plane of the sign, and a clamp, in its various versions, with which the bracket together with the sign is attached to the support (see patent RU, No. 103654, IPC G09F 7/00, publ. 04/20/2011). Options for attaching the bracket to the sign - spot welding, rivet connection or detachable threaded connection - require additional equipment, materials and are more expensive.

It is preferable to secure the signs to the edge of its perimeter. A device for attaching a road sign to a flange is known (see patent RU No. 113857, IPC G09F 7/18, publ. 02.27.2012), which includes a metal plate with an oval convexity in the central part and lateral L-shaped mustaches fixing it on the flange. With this plate, with the help of a bandage tape, the flanging of the sign is pressed against the post in a small area. This fastening is reliable, but due to the short length pressed against the flanging post and the point contact with it, it has insufficient wind resistance.

A device for reliable fastening of signs and information boards is known (see patent RU No. 147504, IPC G09F 7/18, published 11/10/2014). This mount contains a bracket, the end parts with holes have pressing parts highlighted by U-shaped bites, placed under the flange, and two L-shaped parts, which are used to clamp the flange using additional screws. The support base of the bracket on the pole is formed by a deflection in the middle of its surface. The sign is secured with a clamp passed through the holes along the edges of the bent part. Its disadvantage is the complexity of manufacturing and the difficulty of mounting on a pole.

A device for fastening road signs is known, which coincides with the proposed one in terms of the largest number of features (see patent RU No. 33452, IPC G09F 7/18, published 10/20/2003). It contains a clamp having a flat platform in the middle with a longitudinal protrusion for pressing the road sign bracket to the post and an insert between the post and the platform, which has two longitudinal bends towards the sign. The fixed part of the sign base is clamped in the L-shaped gap between the platform and the liner.

Its disadvantage is that the clamp cannot be secured to the sign before installing it on the pole; the device has a short length of holding the sign and its point contact with the pole. These properties are due to the design of the sign holding unit, which consists of a clamping and supporting part in the middle of the clamp - its platform, as well as an insert, which is why this type of simple fastening of signs to the perimeter flange is not used.

The problems solved by the proposed device are changing only the shape of the parts of this type of fastening for signs, which are made of thin sheet steel with an area of up to one square meter. meter and a wind load of up to 100 kg, ensure reliable fastening of them to the supports and simplify their installation on the pole by first fixing the clamp on the flanging of the sign.

The reliability of the sign fastening is increased by increasing the length of the sign flange fastening to 0.75 of the pole diameter, and the resistance to uneven wind loads is by shifting the place of application of the sign-holding forces to the edges of the clamping part of the platform, which ensures the rigidity of the supporting surface of the liner by forming a support base for the pole on it up to 60 degrees of its surface in the form of bulges on it.

The fixation of the clamp on the sign is carried out by the fact that the liner is made with side walls adjacent to the sides of the platform, on which there are cut-off elements that are bent into a part of the side walls of the liner that is stepped in height. With these bends, the platform and the liner are fastened to the flanging of the sign before installing it on the pole in an almost permanent connection with the flanging.

In private versions, the clamp can be made of two unified halves, in which the sign holding unit is their middle part or the sign holding unit in the sign fastening device and the clamp are separate parts in it.

The essence of the utility model of the device is illustrated by drawings, where:

- FIG. Figure 1 shows a side view of attaching a sign to a pole with a two-link clamp.

- FIG. 2, shown in FIG. 1 - top view.

- FIG. 3 shows the platform and the liner of the sign holding unit in a fastened position on the flanging of the sign.

- FIG. Figure 4 shows an option for attaching a sign using a holding unit and a bandage tape with a lock.

The proposed device for fastening a road sign by its flange 1 (see Fig. 1 and 2) on a pillar 2 includes a clamp of two links 3 and 4 and, located between the pillar and link 3, and an insert 5, which has two longitudinal bends towards the sign. The middle part of the link 3, its platform 6 with its side part, is placed under the flanging by biting out fragments from its sides 7 to form an installation gap 8 (see Fig. 1). The platform and the L-shaped part of the liner 5 above the flange clamp the flange of the sign 1 in the gap between them when tightening the clamp. The clamp links are unified by forming a deflection 9 on the platform in its middle part (see Fig. 2), which forms the support base of the second clamp link. The length of the platform and its bent part is, respectively, at least 0.75 and up to 0.5 of the diameter of the column.

The liner 5 is completely adjacent to the platform and its sides 7 by its walls 10 (see Fig. 3). The liner is in contact with the pillar by the convexities 11 formed on it. They are its supporting base up to 60 degrees of the surface of the pillar. The shape in the lateral projection of the surfaces of the liner in contact with the column and the deflection of the platform is preferably inclined to the platform at an angle of 30 degrees. This makes it possible to use fastening signs on two pole diameters under moderate wind loads.

The sides of the platform 7 above the flange have cut-off elements 12 (Figs. 1 and 2). In fig. Figure 3 shows the shape of the liner and its fastening to the platform by means of elements 12, which are bent against the stop of the side walls 11 into its stepped part, which is smaller in height. The bending of elements 12 fixes the fixed position of the two parts on the flange, and their clamping of the liner wall makes their connection inseparable.

In fig. 4, the sign on the pole is secured in a unit that holds it and is pressed against the pole with a bandage tape 13 with a lock 14.

Installation of signs on a pole is carried out with preliminary fastening of the mounting area on the sign (see Fig. 3) using pliers for bending elements 12 with emphasis on the side walls of the liner. Then, using a tie on the post of both links of the clamp, the flange of the sign is pressed against the post.

When the holding unit is installed on the flanging of the sign, it is pressed to the post using a bandage tape with a lock as shown in Fig. 4. Installation of signs and securing them to a pole with bandage tape is generally accepted and does not require explanation.

Installation of signs that do not have horizontal sides for fastening is carried out using molded profiles additionally installed on the plane of the sign. The shape of these profiles is a fragment of the side surface of the sign 60-80 mm wide. This method of securing signs can be used as an additional method in case of extreme wind loads and a large area of fixed surfaces. The use of molded profiles for attaching signs to them is often used in practice and is easy to implement.

A sample of the proposed device was manufactured and tested by the author. The clamp links were made of galvanized steel 1.5 mm thick, their width was 36 mm, the length of the platform was 60 mm, its deflection was 36 mm, the liner was made of galvanized steel 0.8 mm thick, the diameter of the post was 76 mm.

The application of 100 kilograms of tearing force to the flanging from the position fixed on the pole to one fastening did not lead to weakening of the sign. A wind load of 100 kg is the maximum for wind area 6 per square meter. meter, perceived by two sign attachment points.

Compared to the prototype, in which all its parts have a metal thickness of 3 mm, the weight of the proposed mount is almost three times less. The length of the sign fastening has been increased from 38 mm to 60 mm and the entire fixed flange has a rigid support on the liner, thanks to its support base on the pole, which provides sufficient wind resistance to the sign on the pole. The ability to secure the device to the sign before installing it on the pole by simply bending the fastening elements makes it easier to install the sign on the pole.

The sign holding unit can be rigidly attached to the flange and the same size as that installed on a standard pole, can be used to secure signs with bandage tape on large diameter poles.

Claims (3)

1. A device for fastening a road sign by its perimeter flange, containing a clamp having a sign holding unit in the middle, consisting of a clamping part - a platform and a supporting part - an insert, in the L-shaped gap between which the fixed part of the sign is clamped, characterized in that the insert has its own support base on the post in the form of paired convexities on it and side walls adjacent to the side sides of the platform, which have the same width as it, which above the flange have cut-off elements that are bent with emphasis on the side walls of the liner into their stepped part that is smaller in height for fastenings on the flange of the platform and the liner. 2. The device according to claim 1, characterized in that the clamp consists of two identical links having a surface enveloping the pillar of nine flat parts arranged in a zigzag manner, the middle three parts of them are the supporting trapezoidal base for the second link on the pillar, the next two pairs are this is, accordingly, the part of the first link area pressing the flange with a clamping length of at least 0.75 times the diameter of the post and its sides with cut-off fastening elements, the latter being the end bends with holes for bolting the clamp on the post with elastic clamping of the sign flanging to it. 3. The device according to claim 1, characterized in that the sign holding unit, consisting of a platform with sides having cut-off elements for fastening it to the flange and an insert, is a separate part of the fastening, pressed to the pole by its second part - a clamp, preferably bandage tape with a lock.

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