Nailer for electrical switch boxes in concrete construction

Abstract

nailer for nailing switch boxes or their covers to a concrete formwork by means of a hand hammer comprising: a nail rod (5) with a plastic handle (7) attached to the end of the nail rod (5) and a receiving piece (2) arranged at the other end of the nail rod (5) which is continuously movable on the nailer rod.

Description

[0001] The invention relates to a nailer.

[0002] Various nailers are known in the prior art. US Pat. No. 5,529,234 A describes a nailer designed to prevent injuries while nailing. This nailer has a guide tube for a rod with a magnetic tip for holding nails and a striking surface for a hammer. A handle is attached to this guide tube, above which is a disc with a larger diameter that protects the hand underneath from being hit by the hammer. However, these cannot hold the cover or the switch box. Furthermore, these nailers can only nail nails with very small heads and not the commercially available nails that are found in construction. The length of these nailers is also often not long enough to nail boxes between the structural steel reinforcement.

[0003] Therefore, this invention is based on the task of holding the cans or can lids, processing all nails commonly used in construction, and also guiding the fastening parts safely through the steel reinforcement even in the case of greater wall thicknesses and nailing them very precisely at the desired location on the formwork.

[0004] This object is achieved by a novel nailer 1 having the features of claim 1. Advantageous further developments are specified in the dependent claims. Fig. 1 and Fig. 2

[0005] Fig. 1 shows the nailer according to the invention in a sectional view and Fig. 2 shows the nailer according to the invention in a perspective view.

[0006] Accordingly, according to the invention, a nailer 1 is provided with a displaceable receiving piece 2, which has two steel pins 3 as a holder for the cans and lids, which are arranged at a distance of 60 mm in order to be able to accommodate all available cans and lids.

[0007] The movable support piece 2 consists of a tube and a rounded sheet metal part 4, into which the two steel pins 3 are installed, which hold the lids and cans. The movable support piece 2 can be removed without tools. The two steel pins 3 are mounted in the rounded sheet metal part 4 at a standardized distance of 60 mm in order to accommodate the plastic lids 13 and cans, all of which have screw bosses 11 spaced 60 mm apart. The tube is attached to the sheet metal part 4. This support piece 2 can be easily slid off if the nailer 1 is also used without it. The inner diameter of the tube is dimensioned such that it can be easily pushed onto the nailer 1.

[0008] The nail rod 5 is inserted into the holder 2. A replaceable pot magnet 6 is screwed into this nail rod 5. It is advantageous if this magnet 6 is a pot magnet 6, since simple neodymium magnets break very easily when struck, whereas the pot magnet 6 is enclosed in a steel body. The pot magnet 6 must be replaceable, since striking (nailing) causes the elementary particles of the magnet to lose their direction, causing the magnet to become weaker. When the magnetic force decreases, a new pot magnet 6 can be screwed into the nail rod 5 very easily and inexpensively. The pot magnet 6 has a diameter of approximately 10 mm so that all different lids and cans can be nailed, since the distance between the nail domes 12 is not exactly the same from one manufacturer to another.

[0009] The nail rod 5 is supplemented at the end with a plastic handle 7, which is secured against slipping with a locking pin 8. Otherwise, the plastic handle 7 would be repeatedly displaced by hammering (nailing).

[0010] It's advantageous if the nailer 1 and the receiving piece 2 are made of hard stainless steel. First, stainless steel doesn't rust when used on construction sites in the rain, and second, it has a certain hardness, which makes the steel less likely to deform under impact.

[0011] A particular advantage is that the nailer 1 can be used not only by electricians, but also by other tradespeople who need to attach nails in very inaccessible places. For this purpose, the holder 2 can simply be slid off the nail rod 5, allowing nailing to be carried out in hard-to-reach places even without the holder 2. List of reference symbols 1 nailer 2 mounting piece 3 steel pins 4 rounded sheet metal 5 nail rod 6 pot magnets 7 plastic handle 8 locking pin 9 nails 10 can lids of a concrete switch box 11 screw domes 12 nail dome 13 can lids

Claims

[1] Nailer for nailing switch boxes or their covers to a concrete formwork by means of a hand hammer, comprising: a nail rod (5) with a plastic handle (7) attached to the end of the nail rod (5) and a receiving piece (2) arranged on the other end of the nail rod (5) and continuously displaceable on the nailer rod. [2] Nailer according to claim 1, characterized by that the receiving piece 2 consists of a tube and a rounded sheet (4) in which two steel pins (3) are mounted at a standardized distance of 60 mm in order to be able to receive the plastic lids (13) and cans. [3] Nailer according to claim 1, characterized by that the movable receiving piece (2) can be removed without tools. [4] Nailer according to claim 1, characterized by that a replaceable magnet (6) is screwed into the nail rod (5) which holds a nail (9). [5] Nailer according to claim 4, characterized bythat the magnet (6) is a pot magnet that will not break or be destroyed by impact. [6] Nailer according to claim 2, characterized by that the steel pins (3) attached to the rounded sheet (4) are not easily bendable. [7] Nailer according to claim 1, characterized by that all materials except the plastic handle (7) are made of stainless steel. [8] Nailer according to claim 1, characterized by that the plastic handle (7) is designed as a plastic ring which is secured against slipping by a locking pin (8). [9] Nailer according to claim 1, characterized by that the sheet (4) is mounted off-center on the nail rod (5) in order to be able to drive the nail (9) into the nail dome (12) of the lids (13) and cans. [10] Nailer according to claim 4, characterized by that the pot magnet has a diameter of 10 mm. [11] Nailer according to claim 2, characterized bythat the sheet (4) is rotated by 180° to drive in a second nail (9), thereby establishing the correct nail position relative to the second nail dome (12). [12] Nailer according to claim 3, characterized by that nailing can be done in very inaccessible places even without the holder (2).

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