AU2007100367A4

AU2007100367A4 - Drill Shroud

Info

Publication number: AU2007100367A4
Application number: AU2007100367A
Authority: AU
Inventors: Gregory John Radich
Original assignee: GREGORY RADICH
Current assignee: GREGORY RADICH
Priority date: 2006-05-04
Filing date: 2007-05-04
Publication date: 2007-06-07
Anticipated expiration: 2014-05-04

Description

4-MAY2007 15:34 WRAY AND ASSOCIATES NOo. 883 P. 0

AUSTRALIA

ORIGINAL

COMPLETE SPECIFICATION INNOVATION PATENT t-

O

Invention Title: Name of Applicant: Actual Inventor Address for service: Drill Shroud Gregory John Radich Gregory John Radich WRAY ASSOCIATES Level 4, The Quadrant 1 William Street Perth, WA 6000 Attorney code: WR The following statement is a full description of this invention, including the best method of performing it known to me:- 1 COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4, MAY. 2007 15:34 WRAY AND ASSOCIATES NO. 883 P. 6 -2ci Drill Shroud Field of the Invention o This invention relates to a drill shroud.

Background Art A difficulty that arises when utilising a drill relates to the swarf, dust and debris that is generated by the drilling action. In outdoor situations this usually does not Spresent a difficulty however, in indoor situations it creates the need to clean up

C

after the drilling operation has been completed. In addition the swarf and debris that can be created often comprises fine particles that can readily stain the surfaces with which it comes into contact which be undesirable. In addition when drilling upwardly swarf and debris resulting from the drilling action will fall and, unless the user and surrounding persons are wearing adequate protection, the resultant debris can enter the eyes and/or mouth and/or nostrils which can be uncomfortable if not hazardous.

Disclosure of the Invention Throughout the specification and claims, unless the context requires otherwise, the word "comprise" or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.

Throughout the specification and claims the term "hand drill" will be taken as powered hand drill or a like tool which has a housing which provides a handle for the operator and supports a drill chuck.

Accordingly, the invention resides in a drill shroud intended in use to be applied to a hand drill, wherein the shroud comprises a hollow generally cylindrical body having a mounting at one end and an open face at the other end, the mounting being adapted to be receivable over the portion of the hand drill inward of the drill COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4-MAY2007 15:35 WRAY AND ASSOCIATES NO. 833 1 P. 7 1-3- 0 o chuck such that the shroud will extend outwardly from the drill body to surround the drill chuck and drill bit accommodated thereby, the walls of the body being adapted to enable resilient relative movement of the open face towards and away from the mounting from an extended position, the body having a length such that when it is in its extended condition the drill chuck and drill bit supported thereby will be substantially fully accommodated by the shroud and wherein the mounting comprises a collar which is extends from the body and sealingly engagable with the portion of the hand drill.

According to a preferred feature of the invention the collar is formed with an S 10 annular axial flange which is sealingly engagable with the portion of the hand ci drill.

According to a preferred feature of the invention the shroud includes resilient and compressible band which is receivable between the collar and the portion of the hand drill.

According to a preferred feature of the invention the mounting further includes a clamping ring which is receivable over the portion of the hand drill and is adjustable to be able to be clampingly engaged thereon and wherein the collar is sealingly engagable onto the collar. According to a preferred feature of the invention the collar is formed with an annular axial flange which is sealingly engagable with the clamping ring. According to a preferred feature of the invention the shroud includes resilient and compressible band which is receivable between the collar and the portion of the hand drill.

According to a preferred feature of the invention the collar has the configuration of an annulus wherein the inner portion of the annulus is sealingly engagable with the portion of the hand drill and the outer edge of the annulus is removably engageable with the one end of the body.

According to a preferred feature of the invention the walls are formed to have a concertina-like configuration.

COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4, MAY 2007 15:35 WRAY AND ASSOCIATES NO.A88 P. 8 -4o According to a preferred feature of the invention the walls have are substantially transparent.

According to a preferred feature of the invention the perimeter of the open face is o defined by an inwardly directed radial flange. According to a preferred feature of the invention the flange is divergent axially outwardly from the open face.

VaO CC) According to a preferred feature of the invention the body is formed from a o resiliently flexible material o The invention will be more fully understood in light of the following description of Ci three specific embodiments.

Brief Description of the Drawings The description is made with reference to the accompanying drawings of which: Figure 1 is an exploded isometric view of a shroud according to the first embodiment; Figure 2 is a side elevation of a drill shroud mounted to a drill according to the second embodiment; Figure 3 is an exploded view of the second embodiment and power drill; Figure 4 is an exploded isometric view of a shroud according to the third embodiment; Figure 5 is an exploded isometric view of a shroud according to the fourth embodiment; and Figure 6 is an illustrative partial sectional side elevation of the fourth embodiment of the invention.

COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4.MAY.2007 15:35 WRAY AND ASSOCIATES NO. 883 P. 9 0 0 Detailed Description of Specific Embodiments Each of the embodiments are directed to a drill shroud which can be utilised with a power drill whereby the swarf and other debris created by the action of the drill Scan be collected by the drill shroud for disposal in order to minimise the amount of debris entering the surroundings.

IN The first embodiment as shown at Figure 1 comprises a drill shroud comprising a body (11) which is of a tapered configuration from inner end (35) and an outer end defining an open face The inner end (35) is engagable with a mounting Scomprising a clamping ring (13) and a collar The clamping ring (13) Ci 10 comprises an annulus (17) which is associated with a clamping bolt (19) and nut (21) where the annulus (17) is intended to be received over a fixed portion (23) of the body of a power drill (25) inward of the drill chuck Once the clamping ring (13) is positioned over the portion (23) of the body of the power drill, the nut (21) and bolt (19) can be tightened to ensure that the clamping ring (13) is clampingly retained on the drill The clamping ring (13) is associated with the collar (15) which has the configuration of an annulus and is formed at its inner edge with a first axial annular flange (29) which is dimensioned to be receivable over the exterior of the clamping ring (13) to be frictionally and sealingly engaged therewith. In addition, the outer radial edge of the collar (15) is formed with a second axial annular flange (33) which extends from the collar in opposed relation to the first axial annular flange The second axial annular flange (33) is formed with an arcuate outer radial face.

The one end of the body (35) is formed with a rim (35) which is complementary to the external configuration of the second axial annular flange (33) of the collar to enable it to be able to be snugly engaged with the second axial annular (33) flange and as result be retained on the collar. The other end of the body (11) is formed with an open face The perimeter of the open face (37) is defined by an inwardly directed radial flange (39) which is outwardly divergent from the diametric axes of the open face.

The walls of the body between the open face (37) and the one end (35) are COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4-MAY-2001 15:35 4. MY. 207 1:35WRAY AND ASSOCIATESNO83 P.1 NO, 883 P. o formed to have a concertina like configuration and are formed of a suitable resiliently flexible material which permits the resilient axial collapse of the walls such that the open face (37) can move towards and away from the one end As result the wall has an extended position (as shown) from which it can be o 5 resiliently retracted or extended as desired.r- In use the clamping ring (13) is applied to the portion (23) of the power drill VaO CC) inward of the drill chuck and is clampingly fixed to the portion. The first axial o annular flange (29) of the collar is then engaged over the clamping ring. An appropriate drill bit or hole saw is then mounted to the chuck (27) of the drill The body (11) is then fixed to the collar (15) by engaging the second axial Ci annular flange (33) of the collar with the rim at the one end (36) of the body. In order to initiate the drilling or cuffing action the body (11) is resiliently retracted axially such that the outer end of the drill bit or pilot bit of the hole saw is exposed and can be accurately located on the surface to be drilled. Once the drill bit has been located in position the shroud is allowed to relax towards its normal position such that the outer flange (39) will sealingly engage with the surface and surround the drill bit or hole saw.

On execution of the drilling action any swarf or like debris which is created by the drilling action will be deposited into the shroud. On completion of the drilling action the debris can then be deposited as desired by the user from the body (11).

The collar (15) can be replaced by collars of differing radius according to the nature of the implement being used and the dimensions of the portion of the drill (23) while the body (11) can be replaced by another body of corresponding dimensions.

The second embodiment as shown at Figures 2 and 3 comprises a shroud (111) having a tubular body incorporating a mounting at one end (135) and an open face (137) at the other end. The mounting at the one end is defined by a tubular extension (141) which extends axially from the one end (135) and which is dimensioned to be able to resiliently and sealingly engage the body portion (123) COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4-MAY-2007 15:36 4. MY. 2C? 1:36 WRAY AND ASSOCIATES N.8 .1 NO. 883 P. 11 -7o of a drill (125) inward of the drill chuck (127). The body (111) corresponds in configuration and properties to the body (111) of the first embodiment. The second embodiment differs from the first embodiment in that it can be applied to a drill having a keyless chuck in which the portion of the drill adjacent the chuck o 5 has a generally circular cross-section and one end of the body can be applied directly over that portion of the body. In addition the second embodiment is formed such that the mounting portion and the body are formed integrally with

IN

each other.

In the case of the third embodiment as shown at Figure 4 it is variation of the first embodiment and differs from the first embodiment in that a compressible resilient band (41) which can be formed of rubber or a like elasto-meric material, is applied over the clamping ring The band (41) serves to ensure that the first axial flange (29) is sealingly engaged With the clamping ring (13).

In the case of the fourth embodiment as shown at Figure 5 it is variation of the third embodiment in that it is applicable to a drill having a keyless chuck in which the portion body of the drill adjacent the chuck has a generally circular crosssection and the mounting at the one end can be applied directly onto that portion of the body. In the case of the fourth embodiment a compressible resilient band (41) which can be formed of rubber or a like elasto-meric material, is applied over the potion of the body The band (41) serves to ensure that the first axial flange (29) is seal ingly engaged with the portion of the body and the band is able to "fi in" the indentations that can be present on the portion of the drill body and pmovide a seal between collar and the portion of the hand drill in those regions.

It is feature of each of the embodiments and as shown at Figure 6 (which is illustrative of the fourth embodiment) that the shroud forms with the body a space which is rearward of the chuck of the drill which can receive the swarf and like debris resulting form the drilling action. This will serve to keep the swarf and like debris away from the chuck of the drill.

The present invention is not to be limited in scope by any of the specific embodiments described herein. These embodiments are intended for the COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4-MAY2007 15:36 WRAY AND ASSOCIATES NO, 883 P. 12 -8purpose of exemplification only. Functionally equivalent elements and methods are clearly within the scope of the invention as described herein.

0 COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04

Claims

4-MAY2007 15:36 WRAY AND ASSOCIATES NO. 883 P. 13 S--9- 0 cI Claims The Claims Defining the Invention are as Follows: o 1. A drill shroud intended in us to be applied to a hand drill, wherein the shroud comprises a hollow generally cylindrical body having a mounting at SN one end and an open face at the other end, the mounting being adapted Sto be receivable over the portion of the hand drill inward of the drill chuck 0 such that the shroud will extend outwardly from the drill body to surround the drill chuck and drill bit accommodated thereby, the walls of the body S0 being adapted to enable resilient relative movement of the open face towards and away from the mounting from an extended position, the body having a length such that when it is in its extended condition the drill chuck and drill bit supported thereby will be substantially fully accommodated by the shroud and wherein the mounting comprises a collar which is extends from the body and sealingly engagable with the portion of the hand drill 2. A drill shroud as claimed at claim I wherein the collar is formed with an annular axial flange which is sealingly engagable with the portion of the hand drill. 3. A drill shroud as claimed at claiml or 2 wherein the shroud includes resilient and compressible band which is receivable between the collar and the portion of the hand drill. 4. A drill shroud as claimed at claim I wherein the mounting further includes a clamping ring which is receivable over the portion of the hand drill and is adjustable to be able to be clampingly engaged thereon and wherein the collar is sealingly engagable onto the collar. A drill shroud as claimed at claim 4 wherein the collar is formed with an annular axial flange which is sealingly engagable with the clamping ring. COMS ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04 4-MAY-2007 15:36 4. MA. 15:36WRAY AND ASSOCIATESNO83 P.1 NO. 883 P. 14 o 6. A drill shroud as claimed at claim 4 or 5 wherein the shroud includes resilient and compressible band which is receivable between the collar and the portion of the hand drill. o7. A drill shroud as claimed at any one of the preceding claims wherein the collar has the configuration of an annulus wherein the inner portion of the annulus is sealingly engagable with the portion of the hand drill and the NO cc) outer edge of the annulus is removably engageable with the one end of o the body. o8. A drill shroud as claimed at any one of the preceding claims wherein the walls are formed to have a concertina-like configuration.
9. A drill shroud as claimed at any one of the preceding claims wherein the walls have are substantially transparent. A drill shroud as claimed at any one of the preceding claims wherein the perimeter of the open face is defined by an inwardly directed radial flange.
11. .A drill shroud as claimed at claim 10 wherein the flange is divergent axially outwardly from the open face.
12. A drill shroud as claimed at any one of the preceding claims wherein the body is formed from a resiliently flexible material
13.A drill shroud substantially as herein described with reference to the accompanying drawings. COMB ID No: SBMI-07255631 Received by IP Australia: Time 17:35 Date 2007-05-04