CA2559334A1 - Keyless drill chuck with magnetic screwdriver bit storage cavities - Google Patents
Keyless drill chuck with magnetic screwdriver bit storage cavities Download PDFInfo
- Publication number
- CA2559334A1 CA2559334A1 CA 2559334 CA2559334A CA2559334A1 CA 2559334 A1 CA2559334 A1 CA 2559334A1 CA 2559334 CA2559334 CA 2559334 CA 2559334 A CA2559334 A CA 2559334A CA 2559334 A1 CA2559334 A1 CA 2559334A1
- Authority
- CA
- Canada
- Prior art keywords
- bit
- screwdriver
- storage cavities
- bits
- bit storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
- B25F5/029—Construction of casings, bodies or handles with storage compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/38—Keyless chucks for hand tools
Description
~
KEYLESS DRILL CHUCK WITH MAGNETIC
SCREWDRIVER BIT STORAGE CAVITIES
FILING NOTE:
This incomplete patent application describes and elaborates on the novel screwdriver bit storage means partially disclosed in PCT application (#PCT/CA2006/00425) filed on March 23, 2006 (priority date to March 31, 2005 for Canadian filing #2505539).
That previous application was entitled: "Multi-bit, dual-mode screwdriver for either manual or powered actuation". I have subsequently devised a complementary embodiment of the invention's bit storage means that is further optimized for use with electric drills (described below). I anticipate that this innovation might be deemed an independent invention requiring a separate patent application so in anticipation of this possibility, the following layman's disclosure and figures is being filed. If completed, this application will be re-filed by a professional patent agent within the prescribed time limit.
BACKGROUND
To avoid the need for carrying a separate key for tightening its chuck electric drills are frequently equipped with chucks that can be tightened by hand. Many embodiments of this "keyless chuck" mechanism have been devised (examples: Barton US
7,018,146, Schroeder US 6,843,484, Huff US 5,452,906 and Huff 5,125,673). These typical keyless chuck mechanisms rely on two graspable rings which form the outer barrel of the chuck and which the user counter-rotates to tighten or loosen the internal chuck jaw mechanism.
When used to grip a variety of screwdriver bits, the keyless chuck requires a means for carrying the bits with the drill in a manner that renders them easy to swap into the drill's operative position. Kielland's multi-bit screwdriver (PCT ref. above) includes embodiments having open-sided bit storage cavities in which stored bits are held in place using magnetic means. The user removes stored bits by applying pressure onto the side of the bit's shank and then sliding it out the end of its storage cavity. This bit storage means provides excellent ergonomics when swapping bits from the screwdriver's handle into its drive socket. The present application simply utilizes the same bit storage means however instead of housing the bits in the screwdriver's handle; the magnetic storage cavities are housed directly within the structure of a keyless chuck.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG 1 illustrates a typical prior art drill and keyless chuck gripping a standard bit-holder together with 13 loose screwdriver bits.
FIG 2 illustrates the present invention storing and efficiently utilizing the loose screwdriver bits shown in FIG 1.
DETAILED DESCRIPTION
FIG 1 illustrates typical battery powered hand drill 1 mounting typical keyless chuck 2.
Keyless chuck 2 is comprised of rear graspable ring 3, front graspable ring 4 and jaw actuation mechanism 5 (the standard triad of gripping jaws are shown retracted inside the chuck). To tighten or loosen the keyless chuck's jaw mechanism, the user counter-rotates .
ring 4 with respect to ring 3. The graspable rings typically include some form of knurling or textured surface that facilitates this operation (not illustrated) When used to drive a plurality of standard screwdriver bits 8, typical bit-holder 6 is grasped by chuck 2. Typical bit-holder 6 is comprised of hex-rod I 1 joined to barrel 12, said barrel includes hexagonal bit-socket 13 for magnetic mating to typical screwdriver bit 7 (the magnet being affixed to the bottom of socket 13). To accomplish different torquing tasks, the user may extract bit 7 and exchange it for any of the group of standard screwdriver bits 8.
FIG 1 also illustrates two groups of non-standard screwdriver bits. Group 9 is a plurality of knurled bits as disclosed in PCT application (#PCT/CA2006/00425) filed on March 23, 2006 (priority date to March 31, 2005 for Canadian filing #2505539). The knurled sides of each bit facilitate extraction from its magnetic storage cavity as described therein. Group 10 is a plurality of double-ended bits as disclosed in Canadian application #2,548,963 (filed May 15 2006) thereby doubling the number of different screwdriver tips that can be stored within the apparatus.
It is obvious in FIG 1 that the prior art apparatus requires a means of organizing and carrying the plurality of alternate screwdriver bits such that they are readily available for use with the drill and bit-holder 6. FIG 2 illustrates the present invention efficiently fulfilling that requirement by storing the 12 extra bits directly within the keyless chuck.
Hand drill I mounts keyless chuck 12 comprised of rear graspable ring 3, front graspable ring 14 and jaw mechanism 5. Front graspable ring 14 includes a plurality of bit-storage cavities 13 (twelve storage cavities are shown in this example). Each bit-storage cavity is formed to freely receive a hexagonal screwdriver bit and its axis runs parallel to the axis of ring 14.
The length of each bit-storage cavity is sufficient to contain most of the hexagonal portion of each bit. In the example shown in FIG 2, the cavities formed in ring 14 are long enough to house the entire length of each stored bit (thereby permitting the bits to be stored with their screwdriver end facing either forward or rearward). Some keyless chucks have internal jaw actuation mechanisms that do not provide adequate space within their forward graspable rings to accommodate such long storage cavities. In such cases, shorter storage cavities that leave each stored bit's screwdriver tip exposed may be used.
Each bit-storage cavity 13 is formed far enough from the ring's axis that a side-slot 15 is created that exposes the side of its inserted screwdriver bit. Magnet 16 is affixed to the rear end of each cavity, thereby magnetically retaining the stored bit 17 until the user pushes it out with finger pressure (knurled bits being somewhat easier to dislodge from the magnet's grip). The width of each side-slot 15 is sufficient to permit user access to its respective stored bit yet narrow enough to form bit retention flanges 18 on each of its two edges that are large enough to prevent radial ejection of the stored bit. For further detail on the configuration of this bit-storage means, please refer to the PCT
application cited above.
KEYLESS DRILL CHUCK WITH MAGNETIC
SCREWDRIVER BIT STORAGE CAVITIES
FILING NOTE:
This incomplete patent application describes and elaborates on the novel screwdriver bit storage means partially disclosed in PCT application (#PCT/CA2006/00425) filed on March 23, 2006 (priority date to March 31, 2005 for Canadian filing #2505539).
That previous application was entitled: "Multi-bit, dual-mode screwdriver for either manual or powered actuation". I have subsequently devised a complementary embodiment of the invention's bit storage means that is further optimized for use with electric drills (described below). I anticipate that this innovation might be deemed an independent invention requiring a separate patent application so in anticipation of this possibility, the following layman's disclosure and figures is being filed. If completed, this application will be re-filed by a professional patent agent within the prescribed time limit.
BACKGROUND
To avoid the need for carrying a separate key for tightening its chuck electric drills are frequently equipped with chucks that can be tightened by hand. Many embodiments of this "keyless chuck" mechanism have been devised (examples: Barton US
7,018,146, Schroeder US 6,843,484, Huff US 5,452,906 and Huff 5,125,673). These typical keyless chuck mechanisms rely on two graspable rings which form the outer barrel of the chuck and which the user counter-rotates to tighten or loosen the internal chuck jaw mechanism.
When used to grip a variety of screwdriver bits, the keyless chuck requires a means for carrying the bits with the drill in a manner that renders them easy to swap into the drill's operative position. Kielland's multi-bit screwdriver (PCT ref. above) includes embodiments having open-sided bit storage cavities in which stored bits are held in place using magnetic means. The user removes stored bits by applying pressure onto the side of the bit's shank and then sliding it out the end of its storage cavity. This bit storage means provides excellent ergonomics when swapping bits from the screwdriver's handle into its drive socket. The present application simply utilizes the same bit storage means however instead of housing the bits in the screwdriver's handle; the magnetic storage cavities are housed directly within the structure of a keyless chuck.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG 1 illustrates a typical prior art drill and keyless chuck gripping a standard bit-holder together with 13 loose screwdriver bits.
FIG 2 illustrates the present invention storing and efficiently utilizing the loose screwdriver bits shown in FIG 1.
DETAILED DESCRIPTION
FIG 1 illustrates typical battery powered hand drill 1 mounting typical keyless chuck 2.
Keyless chuck 2 is comprised of rear graspable ring 3, front graspable ring 4 and jaw actuation mechanism 5 (the standard triad of gripping jaws are shown retracted inside the chuck). To tighten or loosen the keyless chuck's jaw mechanism, the user counter-rotates .
ring 4 with respect to ring 3. The graspable rings typically include some form of knurling or textured surface that facilitates this operation (not illustrated) When used to drive a plurality of standard screwdriver bits 8, typical bit-holder 6 is grasped by chuck 2. Typical bit-holder 6 is comprised of hex-rod I 1 joined to barrel 12, said barrel includes hexagonal bit-socket 13 for magnetic mating to typical screwdriver bit 7 (the magnet being affixed to the bottom of socket 13). To accomplish different torquing tasks, the user may extract bit 7 and exchange it for any of the group of standard screwdriver bits 8.
FIG 1 also illustrates two groups of non-standard screwdriver bits. Group 9 is a plurality of knurled bits as disclosed in PCT application (#PCT/CA2006/00425) filed on March 23, 2006 (priority date to March 31, 2005 for Canadian filing #2505539). The knurled sides of each bit facilitate extraction from its magnetic storage cavity as described therein. Group 10 is a plurality of double-ended bits as disclosed in Canadian application #2,548,963 (filed May 15 2006) thereby doubling the number of different screwdriver tips that can be stored within the apparatus.
It is obvious in FIG 1 that the prior art apparatus requires a means of organizing and carrying the plurality of alternate screwdriver bits such that they are readily available for use with the drill and bit-holder 6. FIG 2 illustrates the present invention efficiently fulfilling that requirement by storing the 12 extra bits directly within the keyless chuck.
Hand drill I mounts keyless chuck 12 comprised of rear graspable ring 3, front graspable ring 14 and jaw mechanism 5. Front graspable ring 14 includes a plurality of bit-storage cavities 13 (twelve storage cavities are shown in this example). Each bit-storage cavity is formed to freely receive a hexagonal screwdriver bit and its axis runs parallel to the axis of ring 14.
The length of each bit-storage cavity is sufficient to contain most of the hexagonal portion of each bit. In the example shown in FIG 2, the cavities formed in ring 14 are long enough to house the entire length of each stored bit (thereby permitting the bits to be stored with their screwdriver end facing either forward or rearward). Some keyless chucks have internal jaw actuation mechanisms that do not provide adequate space within their forward graspable rings to accommodate such long storage cavities. In such cases, shorter storage cavities that leave each stored bit's screwdriver tip exposed may be used.
Each bit-storage cavity 13 is formed far enough from the ring's axis that a side-slot 15 is created that exposes the side of its inserted screwdriver bit. Magnet 16 is affixed to the rear end of each cavity, thereby magnetically retaining the stored bit 17 until the user pushes it out with finger pressure (knurled bits being somewhat easier to dislodge from the magnet's grip). The width of each side-slot 15 is sufficient to permit user access to its respective stored bit yet narrow enough to form bit retention flanges 18 on each of its two edges that are large enough to prevent radial ejection of the stored bit. For further detail on the configuration of this bit-storage means, please refer to the PCT
application cited above.
2
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2559334 CA2559334A1 (en) | 2006-09-05 | 2006-09-05 | Keyless drill chuck with magnetic screwdriver bit storage cavities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2559334 CA2559334A1 (en) | 2006-09-05 | 2006-09-05 | Keyless drill chuck with magnetic screwdriver bit storage cavities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2559334A1 true CA2559334A1 (en) | 2008-03-05 |
Family
ID=39153680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2559334 Abandoned CA2559334A1 (en) | 2006-09-05 | 2006-09-05 | Keyless drill chuck with magnetic screwdriver bit storage cavities |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2559334A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213108A (en) * | 2012-01-21 | 2013-07-24 | 苏州宝时得电动工具有限公司 | Handheld tool |
| CN114192840A (en) * | 2022-02-18 | 2022-03-18 | 海门柏杰电动工具有限公司 | Handheld electric percussion drill with protection braking function |
-
2006
- 2006-09-05 CA CA 2559334 patent/CA2559334A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213108A (en) * | 2012-01-21 | 2013-07-24 | 苏州宝时得电动工具有限公司 | Handheld tool |
| CN114192840A (en) * | 2022-02-18 | 2022-03-18 | 海门柏杰电动工具有限公司 | Handheld electric percussion drill with protection braking function |
| CN114192840B (en) * | 2022-02-18 | 2022-05-06 | 海门柏杰电动工具有限公司 | Handheld electric percussion drill with protection braking function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2144733B1 (en) | Hand tool with multiple bit storage and a method for using the same | |
| US4235269A (en) | Turning tool with tip storage and retractable lever | |
| CA2505539A1 (en) | Multi-bit screwdriver, convertible for actuation by either manual or electric means | |
| US5346453A (en) | Multiple bit power drill | |
| US20050092144A1 (en) | Hand tool with a removable rotary bit receiving cassette | |
| EP2311608B1 (en) | Compact tool box with ratchet driving function | |
| US20040163501A1 (en) | Tool handle | |
| JP3164936U (en) | Tool box with through holes | |
| US20050076750A1 (en) | Interchangeable screwdriver for tool bits | |
| US20090298658A1 (en) | Power Tool Driver | |
| US6220129B1 (en) | Dual multi-bit screwdriver | |
| CA2559334A1 (en) | Keyless drill chuck with magnetic screwdriver bit storage cavities | |
| US20040094000A1 (en) | Screwdriver handle having a storage structure | |
| US20110005358A1 (en) | Screwdriver handle with storage compartment | |
| US20040231468A1 (en) | Hand or automatic driven tool for attaching screwed anchors | |
| JP2006528087A5 (en) | ||
| US20060043685A1 (en) | Universal bit and tool holder for a linear-to-rotational motion converting device | |
| US7114417B1 (en) | Adjustable spanner wrench for spanner heads having different size holes | |
| US5592862A (en) | Compact, high torque, multi-drive screwdriver | |
| CN214418658U (en) | Power maintenance tool | |
| US3862516A (en) | Pin vise | |
| US20170355068A1 (en) | Screw remover tool device and method | |
| JP2006051563A (en) | Bit holder and bit structure held by the bit | |
| CA2274503A1 (en) | Dual multi-bit screwdriver | |
| JP2003285276A (en) | Screwdriver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |