FR2589095A1 - Electrical or stationary drill, which automatically dispenses drill bits, and indicates the cross-section of the drill bits - Google Patents

Abstract

The invention relates to an electric drill device which automatically dispenses drill bits, making it possible to know the cross-section of the loaded drill. It consists of an offset of the chuck 1, of a gear 3, of a semi-circular sheath 4 containing the drill bits, the jaws of the chuck each having a variable graduation allowing reading. The device according to the invention is generally intended to facilitate the use of the drill, with different drill bits without having to have a separate case containing the drill bits, therefore saving time with this type of use.

Description

 The invention relates to an electric hand or stationary drill, having an automatic distribution of forests, and a graduation on the jaws of the mandrel, making it possible to know the section of the stored forest.

 To date, there is no electric drill, hand or stationary which distributes the forests and indicates their section.

It is given by way of example, a embodiment referring to the data appended hereto
Fig. 1: electric drill, hand or stationary, equipped with an automatic forest distribution device; this device is engaged using an orientable or pivoting sheath, on its seat (in the shape of a half-moon) which hugs the body of the drill at the rear of the chuck. This scabbard which stores forests is made of flexible material such as resistant rubber. In this scabbard in the shape of a sawtooth and in the side part is hollowed out a cylinder which will serve as a garage for the drill. Between the front of the sheath and the rear of the mandrel, a casing is also placed in the form of a half-moon, but fixed to the body of the drill, and having only one orifice in communication with the axis of the mandrel, this casing will serve to prevent the forests placed around the barrel from ejecting. By simple rotation, to the left or to the right perpendicular to the drill, we will solicit a forest. Placed in front of the axis of the manarin, and tilting the drill down, with a movement of the wrist immediately, the forest will come to take place between the jaws of the mandrel. There is a plastic capsule at the back of each forest, with a collar that will prevent the forest from falling.

 Fig. 2: we can see in section, the scabbard in the shape of a sawtooth; the elevation of the mandrel relative to the axis of the motor which is driven by an additional pinion.

 Fig 3: we see the ejection of the forest which goes to the jaws of the mandrel with its flange at the back, which abuts the gold behind.

 The invention therefore relates to an electric drill with forest distribution and section indication, characterized in that it consists of an offset of the axis of the mandrel relative to the plied (I) (2) to the '' using a gear (3) in the rear extension of the mandrel and on the body is placed a sleeve (4) in tiltable half-moon, which contains the drills (#) and allows placed in front of the axis of the mandrel (b) to store the forest in the latter.

The passage section of the forest (y) in the rear part of the manarin bit is not less than the most important forest
Each forest is provided at the rear with a capsule with collar (9) preventing the loss of the forest.

Just rotate the sheath (4i where the forests are stored (5) facing the axis of the mandrel (I) and tilting the drill down, the forest is placed directly between the jaws of the mandrel (8)
In front of the scabbard is placed a half-moon (io) having an orifice opposite the mandrel (11) in order to prevent the forests stored in the scabbard from being ejected.

 The jaws of the mandrel, whether on a stationary drill or by hand, each have a variable grain (i2) starting from the most flared part, to the narrowest part: from> to IL for example.

 This visual graduation is readable by the orifices of the three holes (13) serving as a seat for the tightening key.

 Such a system can also be read by digital cipher.

Claims (6)

 I) Electric hand or fixed drill, equipped with an automatic forest distribution device, comprising an adjustable sheath (4) for storing forests. 2) Electric hand or fixed drill, equipped with an automatic forest distribution device, according to claim 1, characterized in that the sheath contains 6 forests of different section (5) 3) Electric drill, hand or stationary, equipped with an automatic forest distribution device, according to claim 1, characterized in that the forest provided with a capsule at the rear (9) cannot be ejected from the mechanism.  4) Electric hand or fixed drill, equipped with an automatic forest distribution device, according to claim I, characterized by an additional gear (3) to offset the mandrel, relative to the motor. 5) Electric hand or fixed drill, equipped with an automatic forest distribution device, according to claim 1, characterized in that the jaws of the mandrel (I2) each have a visual graduation from section 2 to I2, readable by the holes of the 3 holes (13) or by digital number.  6) Electric hand or stationary drill, equipped with a  automatic forest distribution according to claim 1, characterized  in that, behind the sheath and in the extension of each  location for forests, a hole with a plug will allow  to store them, or possibly to change them after wear.