JPH0544068Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a device used for driving upward using a power tool an anchor metal fitting to be fixed to a wall of a concrete building, especially a ceiling wall slab. .

(Prior art) The ceiling wall slab located at the upper part of the concrete indoor space is constructed in line with the ceiling wall slab, and this is done at intervals of, for example, 1 m from the above wall slab. An anchor hardware is driven into the ceiling, and a hanging bracket with an expansion joint that can be adjusted up and down is attached to this.The ceiling aggregate and ceiling board are installed using this hanging bracket.

By the way, as the anchor hardware, a drive-in type is often used, and as shown in FIG. The metal fitting main body 22 is provided with vertically divided slits 21, and a diameter expanding taper plug 23 whose lower half is fitted into the cylindrical portion 20 of the metal fitting main body 22. In order to fix this to the floor slab, an insertion hole of a predetermined depth is provided in the floor slab in advance, and the diameter is expanded and fixed within the hole.

(Problem to be solved by the invention) An electric hammer is used to drive the above-mentioned anchor hardware, but in order to perform this work from the floor to the ceiling, a long driving rod must be attached to the electric hammer. Methods such as supporting an anchor hardware at the tip or setting up a work scaffold at the required height on the floor have been adopted, but the former method makes the work unstable and requires a lot of effort. Furthermore, the latter method has disadvantages such as the need for temporary construction costs for scaffolding. A drill stand has been proposed as a means to solve this problem. This device is equipped with a holding member that is guided by a pillar that stands upright on the floor, and an electric hammer equipped with a long driving rod is attached to this holding member, so that it can be raised and lowered by a link mechanism installed in the middle of the pillar. Although this method significantly reduces the labor of the operator, the work efficiency is extremely low because the anchor hardware must be attached to the tip of the driving rod one by one.

The present invention has been made to solve this problem, and aims to provide a device that can continuously perform work while automatically supplying anchor hardware.

(Means for Solving the Problems) In order to achieve the above object, the anchor hardware driving device of the present invention has a guide cylinder which is fitted onto a driving rod connected to an electric hammer and is elastically supported via a spring. and an anchor hardware container for sequentially and continuously supplying anchor hardware to the guide cylinder.

(Function) In the device configured as described above, when the tip opening of the guide cylinder is aligned with the driving hole in the ceiling wall and the driving rod is raised together with the electric hammer, one anchor metal piece supplied inside the guide cylinder can be removed. is pushed out and inserted into the driving hole, and then fixed by impact expansion.

Note that after the lifting operation of the driving rod is canceled, the guide cylinder is moved (raised) by the spring pressure and the anchor hardware is automatically supplied.

(Embodiment) An embodiment of the present invention will be described below based on the drawings. That is, in FIG. 1, 1 is a driving rod, the base end of which is connected to the output side of an electric hammer A, and forms a corresponding shank.
Reference numeral 2 denotes a striking part 2 attached to the tip of the driving rod 1, and a striking surface 2a adapted to an anchor metal fitting 22 is formed on the end face thereof. In other words, the diameter is determined to be equal to or slightly larger than the outer diameter of the hardware main body 22 of the anchor hardware 22, so that the hammer can be driven without damaging the threaded portion 19 of the anchor hardware 22 by the striking action of the electric hammer A. is taken into consideration. Note that 3 is a spring receiver provided at a proper position on the driving rod 1. Note that if the diameter of the driving rod 1 is equal to or slightly larger than the outer diameter of the anchor hardware, the striking part 2
There is no need to provide a special setting.

4 is a guide cylinder, which is the anchor hardware 22
The inner diameter is determined according to the outer diameter of the driving rod 1, and the spring receiver 5 and the spring receiver 3 of the driving rod 1 are fitted externally on the tip of the driving rod 1 described above and provided at the lower end thereof. It is elastically supported by a spring 6 interposed therebetween, and a seat plate 7 that comes into contact with the ceiling wall is attached to the upper end. Reference numeral 8 denotes an anchor hardware storage body, which is fixed to the middle side of the guide cylinder 4 and communicates with the inside of the guide cylinder 4 through an opening 9, and has a space therein in which a large number of anchor hardware 22 can be stored in tandem. , and in the rear part there is an anchor hardware 2.
A pressing means 10 is provided which serves to feed the 2 into the guide cylinder 4 one after another. The purpose of the pressing means 10 is achieved by employing a combination structure of a pressing plate 11 shown in the figure and a spring 12 that presses it evenly. Note that 13 is a guide rod that regulates the posture of the push plate 11. Further, the anchor hardware storage body 8 maintains an internal space for stabilizing the anchor hardware 22, and has a window hole 1 in which the anchor hardware 22 is loaded in a proper place, that is, a part of the side plate or top plate.
4 have been established.

The anchor hardware container 8 shown in the embodiment is a box that is perpendicular to the guide tube 4, but it can be modified such that it is gently curved around the guide tube 4, or it is placed opposite to the left and right. The point is that it is sufficient as long as one anchor hardware 22 can be sequentially fed into the guide cylinder 4. Before starting the driving operation, that is, when the spring 6 is fully extended, the striking surface 2a exists below the opening 9, that is, on an extension of the inner bottom surface of the anchor hardware container 8, and the anchor hardware 22 to be driven out is placed on the striking surface 2a. It is supported by.

In addition, part 15 indicated by a phantom line in the figure is the drill stand described earlier, and this is the support post 1.
Holding member 17 of electric hammer A using 6 as a guide
The driving rod 1 is moved up and down together with the electric hammer A by operating a link mechanism 18. Note that the present invention can also be used without being combined with the drill stand 15.

(Effects of the invention) Since the present invention is configured as described above, it produces the following effects.

A guide cylinder is fitted onto the tip of a driving rod connected to an electric hammer, elastically supporting the guide cylinder, and an anchor hardware container communicating with the guide cylinder is provided to automatically drive the anchor hardware in sequence. Since it is configured to be fed onto the striking surface of the rod, it is possible to drive continuously, which can be expected to reduce work effort and improve efficiency. Furthermore, by using it in combination with a drill stand, work efficiency is further improved and there is no need to erect any scaffolding.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of an embodiment of the present invention, and FIG. 2 shows an example of an anchor hardware. 1 is a driving rod, 2a is a striking surface, 3 is a spring holder, 4
5 is a guide cylinder, 5 is a spring receiver, 6 is a spring, 7 is a seat plate, 8 is an anchor hardware container, 9 is an opening, 10 is a pressing means, and A is an electric hammer.

Claims (1)

[Scope of utility model registration request] A driving rod whose lower end is formed to be connected to an electric hammer and a striking surface is provided at the upper end, a guide cylinder fitted onto the driving rod and elastically supported via a spring, and an intermediate portion of the guide cylinder. and an anchor hardware storage body having an opening that is attached to the side and communicates with the guide cylinder, and a pressing means that acts to sequentially supply the loaded anchor hardware into the guide cylinder. Characteristic anchor hardware driving device.