ES1063451U - Circular circular (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Grooving circular devised in order to practice a recessed channel in the periphery of the positioning hole flush boxes electrical mechanism tabiquería laminate and the like plaster, which have an external fixing its mounting position perimetrical flange characterized in that it is constituted by an annular part (1) whose base (2) is a circular bore crown fitted outside the bell drill (3) to which it is coupled and fixed by tightening radial screws (4 ) provided on its cylindrical periphery and uniformly distributed therein, being provided that at least one of its front faces or bases (2) count with a plurality of teeth (5) equidistant and adjacent to the inner periphery, projecting from the same annular base (2) which makes the drill bell (3), and the same overall dimensions in width and thickness, the tab section of the monoblock. (Machine-translation by Google Translate, not legally binding)

Description

Circular grooves

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a channel circular that allows to practice a groove in the periphery of the hole made for the placement of registration boxes electrical mechanisms in plasterboard partition walls and the like, so that these are perfectly flush.

Background of the invention

For the placement of electrical mechanisms such  as switches, sockets, etc., boxes are currently used of circular section that are housed in a hole previously made with a bell drill, replacing the boxes that are mounted in a wall recess and received with plaster paste or similar, being embedded in the partition and flush with it.

Said circular section boxes have a perimeter tab that marks the introduction stop in the assembly in the hole. When the electrical mechanism is placed, it remains separated from the wall and not properly seated by the relief that assumes the thickness of said tab. All the mechanisms current are designed to be placed in boxes received in the partition as we have said before.

There are currently several tools that They are used to solve the aesthetic and assembly problem raised, but these systems either do not give a satisfactory finish, or they are not operational when their use is required continued, as they are often pregnant (with the same sliced paper of the structure of the plasterboard) causing stops in the pace of work.

Description of the invention

In general, the circular groove object of the invention, is constituted by an annular piece metal defined by a circular crown-shaped base with a inner diameter slightly larger than the outside of the drill bell used to practice the hole, adjusting to it and being fixed with the tightening of lost head screws located in two radial holes provided for the effect on the surface side of the annular part 1 and uniformly distributed.

The countersink or ring groove so that it house the perimeter tab of the mounting box of the electrical mechanisms to be installed later, are performed by small teeth placed on the inner edge of the crown circular of the base of the annular piece, of the same dimensions totals, in width and thickness, that the aforementioned section has perimeter tab of the mechanism boxes. The number of teeth  it is preferably twelve and are uniformly distributed in annular direction and perpendicular to the crown plane. They can be formed by machining or milling the piece's own material and They can sharpen.

It is also planned that the teeth exist in both sides of the crown to double the life of the tool since when the teeth of a tooth are somewhat worn face, it turns around the ring piece and it looks like new.

The placement system of the annular piece in the  bell drill, allows adaptation to any model existing in the market to fit the head of a machine drill or manual drill.

The design and distribution of teeth prevents the remains of both the paper and the plaster powder remain adhered, allowing a clean and uninterrupted milling by having to clean the remains on the partition and / or the tool.

The milling that is done is just the desired size, not allowing due to carelessness or lack of operator practice, the reduction is excessive or even total the base hole made by the bell bit is enlarged, or unused and being necessary to cover it to return to open it, with the consequent economic upheaval and loss of time that supposes.

Another very advantageous feature is that the piece  ring or crown defines stop means for inserting the drill bit bell on the hollow partition, eliminating the risk of cutting some nearby tube that should not be closed, or get through the careless partition.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report is accompanied by a sheet of plans in whose figures, with an illustrative and non-limiting nature represented the following:

Brief description of the drawings

Figure 1.- It is a perspective view of the circular groove object of the invention, coupled to a drill conventional hood

Figure 2.- It is a plan view, with a part sectioned and an exploding detail of the same circular groove of the invention.

Figure 3.- It is a section along the cutting line A-B in figure 2.

Description of the preferred embodiment

Referring to the numbering adopted in the figures, we can see how the circular groove that the invention proposes is materialized by the metal ring piece designated in general with the number (1), whose base is a crown circular (2) whose inner diameter corresponds to that of the bell bit (3) which in a known way incorporates the means of connection to the drill or machine used by the operator and the mouth serrated to practice the hole in the laminated plasterboard, Guided by replaceable coaxial drill. The ring piece is fixed in the proper position with the tightening of the radial screws (4) Allen type.

Reference (5) designates teeth carved in the upper base, contiguous to the inner periphery and that are separated to avoid being separated.

The teeth (5) can be sharpened to lengthen The life of this useful. To this end, the lower base can also have another analogous teeth to be used when giving the back to the groove.

With this arrangement, the annular piece or groove serves as a stop when making the mounting hole itself the electrical mechanism box and in this operation the teeth (5) mill the desired annular recess so that it stays there the annular tab of said mechanism box, flush with the partition.

Claims (1)

1. Circular grooving machine, designed with the purpose of practicing a grooved recess in the periphery of the flush-fitting hole of the electrical mechanism boxes in laminated plaster partition walls and the like, which have an external perimeter flange that fixes their mounting position , characterized in that it is constituted by an annular piece (1) whose base (2) is a circular crown of internal diameter adjusted to the outside of the bell bit (3) to which it is attached and fixed by means of the tightening of radial screws ( 4) provided on its cylindrical periphery and uniformly distributed therein, it being provided that at least one of its front faces or bases (2), has a plurality of teeth (5) equidistant and contiguous to the inner periphery, protruding from the same ring base (2) as the bell drill (3), and of the same overall dimensions in width and thickness, as the tab section of the mechanism box.