JPH0213640Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an auxiliary base for scaffolding, which allows scaffolding to be assembled by bringing adjacent scaffolding main frames close together.

Conventionally, when assembling metal scaffolding at construction sites, etc., a jack-based screw rod, in which a lifting piece with a handle is screwed to the screw rod of the base plate, is attached to the lower end of the main frame of the scaffold in the form of a ladder or a torii. The scaffold is assembled into a specified position by either inserting it loosely or by inserting a protruding shaft of a normal base whose height cannot be adjusted, and then stably seating the main scaffolding frame. As shown in Figure 7, the scaffolding, especially at the corners, is made by using the handles of the Jatsky base, or by butting the base plates against each other.
There was a considerable gap (approximately 20cm to 30cm) between the main scaffolding frames, and a gangplank was built over this gap to make it passable, but during the work, the plank was accidentally dropped. In some cases, this can cause serious accidents such as accidents where workers below are hit and injured, or workers who get stuck during work and fall down. However, there was a strong demand for improvements to the external scaffolding, etc., as it was extremely poor.

The present invention relates to an auxiliary base for scaffolding with the purpose of preventing the above-mentioned conventional disasters and greatly increasing the safety of externally assembled scaffolding, etc. It is as follows.

In the figure, 1 is the base plate, which is made of metal. 2
1 is a conventionally used base for scaffolding, and the illustrated example shows a jackie base, which has a protruding shaft 4 made of a screw rod protruding from the upper surface of the seat plate 3, and a lifting/lowering base with handles 5, 5 attached to the protruding shaft 4. Piece 6 is screwed together. In addition to the illustrated Jatsky base, a base with a protruding shaft protruding from the upper surface of the seat plate may also be used as the scaffold base. Reference numeral 7 denotes a cylindrical portion protruding from the lower surface of the base plate 1, and has a diameter that allows the protruding shaft 4 of the scaffolding base 2 to be loosely inserted therein. 8 is a through hole drilled in the base plate 1, and the cylindrical portion 7
The hole is made corresponding to the size of the hole and is large enough to allow the protruding shaft 4 of the scaffolding base 2 to be loosely inserted. Reference numeral 9 denotes a main scaffolding frame used for external scaffolding at construction sites, etc., which includes left and right leg sections 10, 10 made of pipe materials, and ladder sections 11, 11 attached to the leg sections 10, 10. It is composed of a connecting portion 12 that connects the left and right leg rod portions 10, 10. Reference numeral 13 denotes a protrusion for inserting the adjacent scaffold main frame 14 which protrudes near the through hole 8 in the base plate 1. A cylindrical body having approximately the same diameter as the protruding shaft 4 of the scaffold base 2 is used. It protrudes parallel to the protruding shaft 4 of the scaffolding base 2 inserted through the cylindrical part 7 and through hole 8 of 1. 15 is a base plate 1 whose end is welded to the lower surface of the base plate 1 and the cylindrical part 7;
Reinforcement support plate 16 is the main scaffolding frame 9, 1 installed in parallel.
4, a double cylindrical clamp connecting the leg rod portions 10 and 17; 18, a stopper pin provided on the leg rod portions 10, 17 of the scaffold main frames 9, 14; 19, a fitting for the scaffold base 1; A hole through which the stopper pin 18 is inserted is formed in the projection 13, 20 is a scaffold board installed between a pair of scaffold main frames 9 and 14 (the other is not shown), and 21 is a conventional external scaffold. 2. Loosely insert the screw rod of the jack key base 24 into the lower end of each scaffold main frame 22, 23, and attach the scaffold main frame 2.
2 and 23 are stably seated, the scaffold main frame 22 and the scaffold main frame 23 are connected by a connecting rod 25, and especially at the corner portions (Fig. 6 and 7), the scaffold main frame 22 and the scaffold main frame 23 are connected to A gap S is formed between them.

Since the auxiliary base for scaffold assembly according to the present invention has the above-mentioned configuration, when assembling the scaffold using this auxiliary base, the protruding shaft 4 of the scaffold base 2 placed in advance at the location where the scaffold is to be assembled is After inserting the cylindrical part 7 and the through hole 8 of the base plate 1 and supporting the cylindrical part 7 on a lifting piece 6 with handles 5 and 5 screwed onto the protruding shaft 4 and setting the auxiliary base, the auxiliary base is set. Board 1
Insert the leg rod part 10 of the scaffold main frame 9 into the protruding shaft 4 protruding from the through hole 8 of the scaffold main frame 9, and after fitting the scaffold main frame 9 on the other side into the scaffold base, both scaffold main frames Scaffold board 20 is bridged between 9 and 9, and the leg rod part 17 of the adjacent scaffold main frame 14 is inserted into the insertion protrusion 13 protruding from the base plate 1, and this is brought close to the scaffold main frame 9. After connecting in the state of
The other scaffold main frames are also fitted into the scaffold base, and the scaffold is assembled in a predetermined manner by spanning the scaffold board 20, thereby making it possible to assemble the scaffold with less clearance at the corners of the scaffold.

As mentioned above, the auxiliary base for scaffold assembly according to the present invention has a cylindrical part and a through hole in which the protruding shaft of the scaffold base is loosely inserted in the base plate, and a through hole is provided near the through hole for the auxiliary base for scaffold assembly installed next to it. Since it is equipped with a protrusion for insertion, when this auxiliary base is used at the corner of a scaffold that is assembled in a specified manner at a construction site, etc.
The main scaffolding frame of one scaffold is loosely inserted into the protruding shaft protruding from the through hole of the base plate, and the main scaffolding frame of the other scaffold is loosely inserted into the insertion protrusion located near the one scaffolding main frame. Since the scaffolds are assembled, the butt ends of the two scaffolds at the corners are close together, and there is no dangerous gap for traffic during work, so a gangplank is erected between the scaffolds as in the conventional method. This prevents unnecessary injuries to workers below due to the fall of the gangplank, or the most dangerous disasters in which workers on the scaffold get stuck and fall. It has a unique effect, and can respond quickly to the safety of externally assembled scaffolding, which has been strongly requested by site workers and others.

In addition, the present invention is extremely convenient for construction, as it can be used as is on existing scaffolding bases, and the existing scaffolding main frame can be used as is, and its configuration is simple. Therefore, it can be produced at a low cost, and since it does not take much time to use, the workability of scaffold assembly is also good, and it has a great practical effect as an auxiliary base for scaffold assembly that is convenient to use and improves safety. It is something that can be demonstrated.

[Brief explanation of the drawing]

Figure 1 is a front view of the device in use, Figure 2 is a top perspective view, Figure 3 is a partially vertical front view, Figures 4 and 5 are explanatory diagrams showing an example of the usage arrangement, and Figure 6 is a front view of the device in use. The figure is a front view showing a conventional scaffold assembly, FIG. 7 is a top plan view, and FIG. 8 is a perspective view showing an auxiliary base for scaffold assembly according to the present invention. In the figure, 1 is a base plate, 2 is a scaffold base, 7 is a cylinder, 8 is a through hole, 9 is a scaffold main frame, 13 is a projection for insertion, and 14 is a scaffold main frame.

Claims (1)

[Scope of utility model registration request] A scaffold assembly characterized in that the base plate is provided with a cylindrical portion and a through hole into which the protruding shaft of the scaffolding base is loosely inserted, and a protrusion for insertion of the adjacent scaffold main frame is provided near the through hole. Auxiliary base for.