PROTECTIVE DEVICE FOR DRILL CHUCK HAVING A MIXED GASKET WITH INDEPENDENT MOVING FINS

Abstract

A protective device is provided that covers a drill chuck to protect it from dust or debris that may be released when a material is being drilled. The protective device has a mixed gasket comprising two sheets with fins that in their central part have independent movement where both are perforated (female type), while the other sheet contains caps (males) that are joined for better manufacturing, wherein said males are long so that they pierce the female holes and embed themselves in a base that is located directly in the protective device, allowing its adequate fastening.

Claims

1. A drill chuck protective device configured to protect a drill chuck of a drill, the drill chuck protective device comprising: an external casing installed on an outside surface surrounding a front part of the drill, wherein said external casing has an upper section and a lower section, where the upper section has a cover with holes arranged on the surface thereof, while the lower section has a larger diameter than the upper section and is divided into sections and has a pair of protruding elements; a clamp which fits inside the lower section of the external casing and wraps around the drill chuck; a mixed gasket composed of two sheets joined together by a joining element, wherein each of said sheets has at least two central cross-shaped cuts that create independently moving fins, wherein the first sheet has female holes around it, and the second sheet has male caps that match with the female holes; and a fastening strap that surrounds a back surface of the drill when the device is installed, wherein said fastening strap has a front end made up of two end portions having holes to receive the protruding elements of the external casing.

2. The protective device according to claim 1, wherein the external body or casing is cylindrically shaped.

3. The protective device according to claim 1, wherein the protruding elements of the lower section of the external casing are arranged in a diametrically opposed manner.

4. The protective device according to claim 1, wherein the number of holes of the cover in the external casing matches the number of female holes in the first sheet and the number of male caps in the second sheet.

5. The protective device according to claim 4, wherein the number of holes is 4 or more.

6. The protective device according to claim 1, wherein the central cross-shaped cuts that create the independently moving fins of the sheets, are offset from each other.

7. The protective device according to claim 6, wherein the offset of the central cross-shaped cuts is 45°.

8. The protective device according to claim 1, wherein the rear end of the fastening strap has a curvature that fits a predetermined shape of the drill.

9. The protective device according to claim 1, wherein the clamp is divided into two halves, wherein an upper half has a conical, truncated cone shape.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is understood more clearly from the following figures where the components associated with this device or apparatus are shown, as well as the novel elements with respect to the state of the art, where the figures are not intended to limit the scope of the invention, which is solely defined by the appended claims, wherein:

[0031] FIG. 1 corresponds to a perspective view of a commercially available drill, which has the protective device with mixed gasket of the present invention installed on its front part.

[0032] FIG. 2 corresponds to an exploded view of the drill of FIG. 1 including the protective device with mixed gasket of the present invention.

[0033] FIG. 3 corresponds to an enlarged view of the detail of the joint of the mixed gasket with the rest of the components of the protective device of the present invention, while it is installed in a hole.

[0034] FIGS. 4A-D correspond to different views of the mixed gasket with independent fins being part of the protective device of the present invention.

[0035] FIGS. 5A-C correspond to different views of the external casing of the protective device of the present invention.

[0036] FIGS. 6A-B correspond to different views of the clamp being installed in the lower part of the external casing and being part of the protective device of the present invention. Specifically, FIG. 6A shows a rubber clamp whose upper half is tapered to fit any tip of the chuck.

[0037] FIGS. 7A-C correspond to different views of the fastening strap that surrounds the rear part of the drill in operation, which is part of the protective device of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0038] The present invention is directed to a protective device to be installed on the front of a commercially available drill, wherein said protective device covers the drill chuck and protects said component from debris and/or dust that may be released when the drilling process is carried out by the user.

[0039] In this regard, FIGS. 1 to 7 show a protective device for the front part of a drill, as defined in the previous paragraph, wherein said protective device is installed in a simple and comfortable way, ensuring that it is not released from the drill during its operation and that the drill bit can pass therethrough and fulfill its drilling goal, wherein said protective device is generally composed of the following parts or components:

[0040] An external body or casing (1) installed on the outside surrounding the front part of the drill (5), specifically on the drill chuck of said apparatus, wherein the external body or casing (1) has a substantially cylindrical shape and has an upper section (11) and a lower section (12), where the upper section (11) has a cover (13) with a plurality of holes (14) arranged on the surface thereof, while the lower section (12) has a larger diameter than the upper section (11) and is divided into sections and has a pair of protruding elements (15) arranged diametrically opposite;

[0041] A clamp (2) which fits inside the lower section (12) of the external casing (1), wherein said clamp wraps around the drill chuck (5);

[0042] A mixed gasket (3) made up of two sheets (31, 32) joined together by a joining element (33), wherein each of said sheets (31, 32) has at least two central cross-shaped cuts that create a series of independently moving fins (34), wherein the first sheet (31) has a series of female holes (35) around it, and the second sheet (32) has a series of male caps (36) that match with the female holes (35) and are inserted therein when folding the second sheet (32) over the first sheet (31) at the joint (33); and

[0043] A fastening strap (4) that surrounds the back of the drill (5) when the device is installed, wherein said fastening strap (4) has a front end made up of two ends (41) that have a series of holes (42) in which the protruding elements (15) of the external casing (1) are inserted to fasten the protective device to the drill (5), while the opposite end, i.e., the rear end of the fastening strap (4), has a curvature that fits the shape of the drill (5).

[0044] Thus, FIGS. 5A-D specifically show the holes (14) of the cover (13) of the external casing (1), which are used to receive the male caps (36) of the second sheet (32) when the mixed gasket (3) is folded, in order to allow said gasket (3) to be installed on the external casing (1).

[0045] According to the above, the number of holes (14) on the cover (13) of the external casing (1), matches with the number of female holes (35) of the first sheet (31) and the male caps (36) of the second sheet (32). Although a predefined number of these elements is illustrated in the Figures, the present disclosure contemplates any number of these, such as, for example, at least 2, at least 4, at least 6, at least 8, or even, at least 10, without limitations, wherein said number depends directly on the size of the protector of the present invention and the hole in which it is going to be installed.

[0046] In a preferred embodiment, as illustrated in detail in FIG. 4, the central cross-shaped cuts that create a series of independently moving fins (34) of the sheets (31, 32), are offset from each other. Preferably, said offset is 45°, which creates eight independent fins (34) that do not match with each other, but are offset when locating the second sheet (32) on the first sheet (31).

[0047] This offset of the independently moving fins (34) allows the drill bit to pass through the protective device without any problem, that is, it can fulfill its objective, while preventing debris or dust from entering the protective device, since the crosses that create said fins (34) do not match and, therefore, the dust cannot pass. Likewise, the arrangement of fins (34) allows the material from which they are made to return to its original position, since there will always be resistance to the movement exerted by the drill bit when the protective device is installed in the drill (5).

[0048] In a preferred embodiment of the present invention, the clamp (2) has an (imaginary) division between its upper part and the lower part, wherein it is desirable that the upper half of said clamp (2) have a conical shape, similar to a truncated cone, in order to adapt to any chuck tip without limitations, that is, to adapt adequately to any type of drill.

[0049] For installing the protective device of the present invention, as illustrated in FIG. 2, it is first necessary to insert the drill bit into the drill chuck (5), then the clamp (2) is inserted by sliding it into the chuck surrounding it, to then be able to insert the outer casing (1) so that the clamp (2) is inside the lower section (12). Then, the flexible gasket (3) must be formed by folding the second section (32) over the first section (31) and thus the male caps (36) can be inserted into the holes (14) of the cover (13) of the outer casing (1), thus the flexible gasket (3) is fully secured in the casing (1).

[0050] Once the clamp (2), the external casing (1) and the mixed packing (3) have been installed, the protective device is secured to the drill (5) to prevent it from coming out or being separated and it can drill without any problems. Thus, the fastening strap (4) is directly attached to the external casing (1) by inserting the protruding elements (15) of the lower section (12) into the holes (42) found at the ends (41) of said fastening strap (4).

[0051] According to the above definition, it is important to bear in mind that one of the main advantages of the present invention is that it can be adapted to any type of drill, without limitations, a fact that was not possible to obtain with similar devices existing in the state of the art as mentioned above in the background section.

[0052] Although the previous description defines the preferred embodiments of the present invention, several modifications that may be evident to those skilled in the art are also contemplated within the scope of this document, wherein said scope is not in any way limited to the embodiments, but it is defined solely by the appended claims and the subject-matter therein.