EP0978356A2 - Bits-Magazin eines Handwerkzeugs - Google Patents
Bits-Magazin eines Handwerkzeugs Download PDFInfo
- Publication number
- EP0978356A2 EP0978356A2 EP99305452A EP99305452A EP0978356A2 EP 0978356 A2 EP0978356 A2 EP 0978356A2 EP 99305452 A EP99305452 A EP 99305452A EP 99305452 A EP99305452 A EP 99305452A EP 0978356 A2 EP0978356 A2 EP 0978356A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- sleeve
- shaft
- recesses
- bit
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
- B25B15/04—Screwdrivers operated by rotating the handle with ratchet action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/08—Handle constructions with provision for storing tool elements
- B25G1/085—Handle constructions with provision for storing tool elements for screwdrivers, wrenches or spanners
Definitions
- This invention relates to screwdrivers and other hand tools which may have replaceable tool-bits.
- the present invention provides a tool-bit magazine for a hand tool, having a body and a sleeve which are relatively rotatable to a position in which an aperture in the sleeve is in register with a recess in the body and thereby permits a tool-bit to be removed from or inserted into that recess.
- the screwdriver has a steel bar or shaft 1 which extends from one end of a composite plastics handle 2 having a hard polypropylene core.
- the bar is press formed with two longitudinal ribs (not visible) which retain the shaft 1 in the handle after the shaft has been pressed into the handle.
- the distal end of the shaft has a hexagonal recess 3 for receiving the hexagonal stub of a conventional tool-bit.
- a permanent magnet 4 is fixed in the base of the hexagonal recess 3 in order to retain the bit in use.
- a tool-bit magazine 6 is mounted on the proximal end of the shaft 1. It has a body 7 with peripheral elongate recesses 8 for accommodating tool bits 9, one of which is visible in Figure 1.
- the recesses 8 are spaced around the common axis 11 of the shaft 1 and the body 7 and they extend generally in the axial direction.
- the body 7 has an axial bore 12 which is a sliding fit on the shaft 1.
- a radially inwardly projecting portion 13 of the body 7 engages in a circumferential groove 14 machined in the shaft 1, in order to retain the body 7 on the shaft 1.
- a bevel 13a on the inside edge of the projecting portion 13 allows the body 7 to be pushed on to the shaft 1.
- the rear end surface 16 of the body abuts against the front end surface 17 of the handle.
- the front end of each recess 8 is defined by a wall surface 8a sloping outwards away from the other end, which is open and which is covered by the front end surface 17 of the handle.
- a sleeve 18 prevents escape of the bits 9 from the recesses 8.
- the sleeve 18 is mounted in a circumferential recess 19 in the body 7 so as to be rotatable to respective positions in which an aperture constituted by an open-ended slot 21 in the sleeve 18 is in register with a respective one of the recesses 8, thereby permitting a bit 9 to be inserted into that recess or removed from that recess (by allowing it to fall out under gravity). Since both the body 7 and the sleeve 18 are rotatable relative to the rest of the tool, it is necessary to hold one of them with one hand while the other hand rotates the other of them.
- the body 7 and the sleeve 18 are provided with external ribs 7a and 18a respectively. Since the whole magazine 6 is rotatable, the shaft 1 can be guided firmly by one hand while the other hand rotates the handle 2, without any risk of the sleeve 18 being turned independently of the body 7 and inadvertently freeing the bits during use of the screwdriver.
- the sleeve 18 only covers about half of the length of the recesses 8, with the result that the front ends of the bits 9 are visible so that they can be easily identified and selected.
- the rear end of the bit 9 rests against the front end surface 17 of the handle 2 and its tip rests against the sloping surface 8a. Rattling of the bits 9 in the recess 8 is prevented by flanges 22 which are formed integral with the body 7 and which are resiliently deformed by the bits 9 so that the bits are retained between the flanges 22 and the sleeve 18.
- the hexagonal stub of the bit 9 is able to adopt different angular positions, two of which are indicated in solid line and chain line respectively.
- a spring loaded ball 23 mounted in a radial bore in the body 7 cooperates with a circumferential series of part-spherical notches 24 in the sleeve 18.
- a reversible ratchet mechanism for transmitting rotation from the handle 2 to the shaft 1 may be interposed between the magazine 6 and the handle 2.
- FIGS 4 to 6 show a preferred embodiment of the screwdriver, in which parts similar to those described above are given the same reference numerals.
- the screwdriver has a tool-bit magazine 6 with a body 7 having recesses 8 accommodating tool bits 9.
- the body 7 has an axial bore which is a sliding fit on the shaft 1.
- a portion 13 of the body 7 engages in a circumferential groove 14 machined in the shaft 1.
- a sleeve 18 is mounted in a circumferential recess 19 in the body 7 so as to be rotatable to respective positions in which a slot 21 is in register with a respective recess 8, to permit insertion or removal of a bit 9.
- a spring loaded ball 23 mounted on the body 7 engages in a circumferential series of notches in the sleeve 18.
- the screwdriver shown in Figures 4 to 6 also has a ratchet mechanism 51 between the magazine 6 and the handle 2.
- the ratchet mechanism has a body 62 with a bore 56 receiving the shaft 1 which is formed with a spur gear 57 engageable by pawls 58a and 58b which are tiltable about axes parallel to the shaft axis 11.
- a control sleeve 64 is linked to a control member 66 carrying a leaf spring 76 with legs 76a and 76b which bear on the pawls 58a and 58b respectively.
- the control sleeve 64 is movable clockwise and anticlockwise from the intermediate position shown in Figure 6, in which both pawls 58a and 58b and engaged with the gear 57, to respective ratcheting positions in which only one or the other of the pawls is engaged with the gear 57.
- the rear end surface 16 of the magazine body 7 abuts against the front surface of the body 62, against which the rear ends of the bits 9 rest.
- the tips of the bits 9 rest against sloping front end surfaces 8a of the recesses 8.
- the ratchet mechanism 51 is described in more detail in our U.K. Patent Application No. 9816878.4 filed 3 August 1998.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/357,086 US6293173B1 (en) | 1998-08-03 | 1999-07-19 | Tool-bit magazine for hand tool |
CA002334439A CA2334439C (en) | 1999-07-08 | 2001-02-07 | Tool-bit magazine for hand tool |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9816876 | 1998-08-03 | ||
GB9816876A GB2340059A (en) | 1998-08-03 | 1998-08-03 | Tool bit magazine |
CA002334439A CA2334439C (en) | 1999-07-08 | 2001-02-07 | Tool-bit magazine for hand tool |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0978356A2 true EP0978356A2 (de) | 2000-02-09 |
EP0978356A3 EP0978356A3 (de) | 2001-01-31 |
EP0978356B1 EP0978356B1 (de) | 2005-09-21 |
Family
ID=25682383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99305452A Expired - Lifetime EP0978356B1 (de) | 1998-08-03 | 1999-07-08 | Bits-Magazin eines Handwerkzeugs |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0978356B1 (de) |
CN (1) | CN1251795A (de) |
GB (1) | GB2340059A (de) |
TW (1) | TW388733B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020060697A1 (en) * | 2018-09-18 | 2020-03-26 | Wheelfoat, Inc. | A storage device with cells for storing bits |
US11148276B2 (en) | 2015-04-21 | 2021-10-19 | Wheelfloat, Inc. | Multi-bit screwdriver |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108581911A (zh) * | 2018-05-23 | 2018-09-28 | 绍兴环洲工具制造有限公司 | 一种能内藏批头的手工具 |
CN112704046A (zh) * | 2019-10-25 | 2021-04-27 | 祖常亮 | 一种渔耕定制网 |
US11654534B2 (en) | 2019-12-05 | 2023-05-23 | Wheelfloat, Inc. | Locking mechanism and clocking cylinder |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4273173A (en) * | 1979-10-17 | 1981-06-16 | S/V Tool Company, Inc. | Device for transmitting torque |
US4278119A (en) * | 1980-01-07 | 1981-07-14 | Vermont American Corporation | Storage means for removable tips for hand tool |
FR2557489A1 (fr) * | 1984-01-03 | 1985-07-05 | Holland Letz Felo Werkzeug | Poignee de manoeuvre formant magasin pour outils de vissage rapportes |
EP0358884A1 (de) * | 1988-09-10 | 1990-03-21 | Wera-Werk Hermann Werner GmbH & Co. | Schraubendreher |
US5740706A (en) * | 1996-10-02 | 1998-04-21 | Tseng; Sen Piao | Tool handle with concealed storage means |
DE29902512U1 (de) * | 1998-03-03 | 1999-05-27 | Huang, Chin-Tan, Ta-Li, Taichung | Schraubendreher |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE407174B (sv) * | 1978-06-30 | 1979-03-19 | Bahco Verktyg Ab | Vridande handverktyg med skafthalrum for forvaring av verktygselement |
GB2219539B (en) * | 1988-06-10 | 1992-08-26 | Archibald Mervin Mckenzie | Multiple bit screwdriver |
US5174178A (en) * | 1991-08-26 | 1992-12-29 | Disston Jr Horace C | Selective tool handle |
-
1998
- 1998-08-03 GB GB9816876A patent/GB2340059A/en not_active Withdrawn
- 1998-12-28 TW TW087121730A patent/TW388733B/zh not_active IP Right Cessation
-
1999
- 1999-07-08 EP EP99305452A patent/EP0978356B1/de not_active Expired - Lifetime
- 1999-08-03 CN CN99111881.2A patent/CN1251795A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4273173A (en) * | 1979-10-17 | 1981-06-16 | S/V Tool Company, Inc. | Device for transmitting torque |
US4278119A (en) * | 1980-01-07 | 1981-07-14 | Vermont American Corporation | Storage means for removable tips for hand tool |
FR2557489A1 (fr) * | 1984-01-03 | 1985-07-05 | Holland Letz Felo Werkzeug | Poignee de manoeuvre formant magasin pour outils de vissage rapportes |
EP0358884A1 (de) * | 1988-09-10 | 1990-03-21 | Wera-Werk Hermann Werner GmbH & Co. | Schraubendreher |
US5740706A (en) * | 1996-10-02 | 1998-04-21 | Tseng; Sen Piao | Tool handle with concealed storage means |
DE29902512U1 (de) * | 1998-03-03 | 1999-05-27 | Huang, Chin-Tan, Ta-Li, Taichung | Schraubendreher |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11148276B2 (en) | 2015-04-21 | 2021-10-19 | Wheelfloat, Inc. | Multi-bit screwdriver |
WO2020060697A1 (en) * | 2018-09-18 | 2020-03-26 | Wheelfoat, Inc. | A storage device with cells for storing bits |
Also Published As
Publication number | Publication date |
---|---|
EP0978356A3 (de) | 2001-01-31 |
CN1251795A (zh) | 2000-05-03 |
GB9816876D0 (en) | 1998-09-30 |
GB2340059A (en) | 2000-02-16 |
TW388733B (en) | 2000-05-01 |
EP0978356B1 (de) | 2005-09-21 |
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