EP0100377B1 - Taschenwerkzeug, insbesondere Taschenmesser oder ähnliches zusammenklappbares Werkzeug - Google Patents
Taschenwerkzeug, insbesondere Taschenmesser oder ähnliches zusammenklappbares Werkzeug Download PDFInfo
- Publication number
- EP0100377B1 EP0100377B1 EP82200982A EP82200982A EP0100377B1 EP 0100377 B1 EP0100377 B1 EP 0100377B1 EP 82200982 A EP82200982 A EP 82200982A EP 82200982 A EP82200982 A EP 82200982A EP 0100377 B1 EP0100377 B1 EP 0100377B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- pivot
- cylinder
- elements
- 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.)
- Expired
Links
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 210000004905 finger nail Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 210000005224 forefinger Anatomy 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
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
- B25F1/00—Combination or multi-purpose hand tools
- B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
- B25F1/04—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements wherein the elements are brought into working positions by a pivoting or sliding movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B1/00—Hand knives with adjustable blade; Pocket knives
- B26B1/02—Hand knives with adjustable blade; Pocket knives with pivoted blade
- B26B1/04—Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position
Definitions
- the invention is concerned with a folding pocket tool including a set comprised of one or more tool elements, such as knife blades, said set being enclosed between two parallel cover-plates defining a handle of said pocket tool shaped to provide a firm grip for a user's hand, each tool element being individually pivotable relative to said handle about a pivot cylinder, whereby each tool element has a pivot end fully encircling a bore for close-fitting location around said pivot cylinder,
- a pocket tool of this type is known from the U.S. Patent Specification 4,124,939.
- both the tool elements and their pivot structure and locking arrangement should be of substantially equal strength to resist the prevailing different loadings exertable with the tool elements which may be fitted to the pocket tool.
- the pivot structure according to said U.S. Patent Specification is weak compared to the size of the tool and to the size of the grip.
- a sturdy latch and notch combination to lock the tool in the extended working position is present. It is surprising that even the sturdiest foldable pocket tools known from the prior art are weak with regard to the pivot structure and many of them also with regard to weak and/or unsafe latching mechanisms.
- the invention aims to provide a sturdy and reliable foldable pocket tool in which all parts are of substantially the same resistance to the maximum load exertable by a user's hand through the grip on each type of tool which is fitted or fittable to the tool.
- the above- described foldable pocket tool is characterised in that
- the sturdy pivot cylinder with its flanges provides a greatly increased width at the pivot end.
- the pivot cylinder may have a concentric bore sized to allow insertion of a finger for improved grip of the pocket tool.
- the overall width of the pocket tool may be substantially larger at its pivot end than over the central part of the pocket tool which serves as handle for the user. This provides for a still safer grip of the tool by the user's hand.
- pivot cylinder consists of two cylinders closely fitting one into the other, mutually fastened together by screw threads, is such that each cylinder carries one of said flanges, whereby the outer cylinder extends from the flange at one end to its other end over a distance which, when assembled, corresponds substantially to the combined width of the set of tool elements, of any separating plates present and of both cover plates.
- certain tool elements may easily be replaced by others or interchanged for other types. Without complicating the pocket tool by adding devices, it has become more effective since it can be adapted to all kinds of operations.
- a foldable pocket tool with one or more tool elements is preferably further characterised in that there is only one single latch extending over the combined width of the tool element, such as to be engageable with the notches of every tool element and/or retaining the hold positions at the end of the depression of every tool element, said latch extending parallel to the axis of the pivot cylinder, having a width at least equal to the width of the packaged set consisting of all tool elements and of any separating plates present. Since the position of the latch and cooperating notches is at the outer circumference of the pivot end of the pocket tool, greatly increased forces can be resisted, compared to all known structures where the latch-notch combination is located much nearer to the centerline of the pivot.
- the figures 1, 2 and 3 show a pocket-tool in closed position comprising essentially a tool element, a cylinder 2 around which the tool element 1 can rotate, a springloaded locking device 3 securing the tool element 1, coverplates 4, separating plates 5 and lifting handles 6, 7 and 8.
- the tool-element 1 is firmly placed with flat surfaces between flat mating surfaces of separating plates 5 or coverplates 4. Likewise the inner surfaces of the flanges 19 of cylinder 2 rest firmly and with flat surfaces against mating surfaces of the cover- plates 4.
- the springloaded locking device 3 keeps the tool-element 1 locked when latch 9 falls in recess or notch 10, which can be achieved by rotating tool-element 1 around cylinder 2.
- Lifting the locking device 3 can be accomplished in various ways, in figure 1 for instance a recess 12 is provided which can have various shapes and can also be a gap. By pulling disengagement of latch 9 is achieved. Latch 9 moves into depression 13 where tool-element 1 is nearing its rest position as is shown in figure 1 and 2. This retains the tool-element 1 in its folded or rest position.
- lifting levers 6 and 7 are shown as variations for lifting the spring-loaded locking device 3 when more force is required than can be reasonably expected from a thumbnail.
- Lever 6 pivots around pin 15 which runs through the separating plates 5 and coverplates 4. Separating plates 5 each have a recess 16 to accommodate lever 6.
- a stud 17 is provided resting with one side against the springloaded arm of locking device 3. When lifting and rotating lever 6, stud 17 rotates and lifts locking device 3 whereby face 18 becomes engaged.
- Lever 7 is pivotable around pin 15 in the same chamber that gives accommodation to the tool-element 1 thereby lifting locking device 3.
- a cross-section of the cylinder 2 is given in section B-B of figure 2 showing an alternative solution to the locking of the tool-elements 1 and plates 4 and 5; instead for instance of direct riveting, a ring 20 is slipped over the unfinished end of the cylinder till it meets a stepwise increase in the diameter at the location of end plate 4 so that ring 20 is locked in the right position when the cylinder extension is rolled into a flange.
- the advantage of this variation is that the contact force of ring 20 onto coverplate 4 by which the tool-elements 1 are locked can be well controlled.
- Ring 20 can have a circular shape or any other shape to improve its strength.
- Figure 3 shows a locking device whereby latch 9 extends over all tool-elements 1, serving all tool-elements 1 simultaneously.
- any lifting device can be used. Shown is a handle 8 rotating around cylinder 2. Rim 21 in contact with latch 9 is curved such that a larger radius lifts the locking device 3 when handle 8 is rotated.
- locking device 3 is provided with a window 22.
- the fixed end of locking device 3 for instance has recesses 23 for accommodating separating plates 5. Holes 24 for instance indicate a fastening means for cover- plates 4, separating plates 5 and the locking device(s) 3.
- a a double cylinder consisting of an inner cylinder 25 and an outer cylinder 26 are screwed in each other with matching thread so that the tool-elements 1, separating plates 5 and coverplates 4 are locked together as tight as required between the surfaces 27 and 28.
- the position of the two cylinders 25 and 26 can be secured for instance with a spring 29 provided in one of the coverplates with a butt 30 that fits into a recess in the flange of one of the cylinders 25 and 26 while the other cylinder flange is secured for instance with a fixed pin.
- Another method of securing the two cylinders together is by rolling the inner cylinder end into a flange 31 fitting a recess in the flange of the outer cylinder 26 for instance as shown in detail B.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Knives (AREA)
- Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
- Scissors And Nippers (AREA)
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82200982T ATE29978T1 (de) | 1982-07-30 | 1982-07-30 | Taschenwerkzeug, insbesondere taschenmesser oder aehnliches zusammenklappbares werkzeug. |
EP82200982A EP0100377B1 (de) | 1982-07-30 | 1982-07-30 | Taschenwerkzeug, insbesondere Taschenmesser oder ähnliches zusammenklappbares Werkzeug |
DE8282200982T DE3277404D1 (en) | 1982-07-30 | 1982-07-30 | A pocket-tool, pocket-knife or similarly retractable tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP82200982A EP0100377B1 (de) | 1982-07-30 | 1982-07-30 | Taschenwerkzeug, insbesondere Taschenmesser oder ähnliches zusammenklappbares Werkzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0100377A1 EP0100377A1 (de) | 1984-02-15 |
EP0100377B1 true EP0100377B1 (de) | 1987-09-30 |
Family
ID=8189508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82200982A Expired EP0100377B1 (de) | 1982-07-30 | 1982-07-30 | Taschenwerkzeug, insbesondere Taschenmesser oder ähnliches zusammenklappbares Werkzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0100377B1 (de) |
AT (1) | ATE29978T1 (de) |
DE (1) | DE3277404D1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7676931B2 (en) | 2005-06-14 | 2010-03-16 | Leatherman Tool Group, Inc. | Folding knife |
US11498199B2 (en) | 2018-07-09 | 2022-11-15 | Milwaukee Electric Tool Corporation | Utility knife with tape hook recess |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4660284A (en) * | 1985-07-17 | 1987-04-28 | The Stanley Works | Folding pocket saw |
US4673346A (en) * | 1985-10-31 | 1987-06-16 | John Anderson | Caulking forming tool |
US5765247A (en) * | 1996-01-11 | 1998-06-16 | Buck Knives, Inc. | Hand tool with multiple locking blades controlled by a single locking mechanism and release |
US5692304A (en) * | 1996-07-19 | 1997-12-02 | Cooper Industries, Inc. | Locking device for folding tool |
CA2217117C (en) * | 1996-10-07 | 2001-12-04 | David A. Swinden | Multi-purpose folding tool and locking mechanism therefor |
US5791002A (en) | 1996-10-07 | 1998-08-11 | Imperial Schrade Corp. | Multi-purpose folding tool |
WO1999058302A1 (en) * | 1998-05-08 | 1999-11-18 | Alterra Holdings Corporation | Folding knife |
EP1000713B1 (de) * | 1998-11-09 | 2006-08-02 | Victorinox Ag | Taschenwerkzeug |
FR2807689B1 (fr) * | 2000-04-12 | 2002-06-28 | Marc Gerard Seraphin | Couteau pliant |
US7634858B1 (en) | 2006-01-24 | 2009-12-22 | SOG Specialty Knives & Tools, Inc. | Folding knife with finger guard |
US8161653B2 (en) | 2007-11-12 | 2012-04-24 | Leatherman Tool Group, Inc. | Folding tool having a rotatable locking mechanism |
US8359753B1 (en) | 2008-01-30 | 2013-01-29 | SOG Specialty Knives and Tools | Actuating opening system for folding knife |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE23970C (de) * | Firma ROB. PAFFRATH WWE. in Solingen | Neuerung an federlosen Messern | ||
US1362143A (en) * | 1919-05-15 | 1920-12-14 | Rohrer Daniel | Pocket-knife |
US1439507A (en) * | 1919-11-22 | 1922-12-19 | Kwik Kut Knife Co | Knife |
US1337769A (en) * | 1919-12-27 | 1920-04-20 | Winchester Repeating Arms Co | Pocket-knife |
US2195846A (en) * | 1937-05-29 | 1940-04-02 | Remington Arms Co Inc | Cutlery |
FR1043285A (fr) * | 1951-09-25 | 1953-11-09 | Arthur Sauzedde & Cie Ets | Couteau à cran d'arrêt |
US2798290A (en) * | 1956-10-10 | 1957-07-09 | William E Bassett | Combined tool |
US4124939A (en) * | 1977-07-21 | 1978-11-14 | Takuo Onoue | Folding knives |
US4233737A (en) * | 1979-04-13 | 1980-11-18 | Poehlmann Paul W | Knife with removable blade |
US4312128A (en) * | 1980-06-27 | 1982-01-26 | Olsen Theodore A | Useful device such as a cutting implement for suspending from a key ring or the like |
-
1982
- 1982-07-30 DE DE8282200982T patent/DE3277404D1/de not_active Expired
- 1982-07-30 AT AT82200982T patent/ATE29978T1/de not_active IP Right Cessation
- 1982-07-30 EP EP82200982A patent/EP0100377B1/de not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7676931B2 (en) | 2005-06-14 | 2010-03-16 | Leatherman Tool Group, Inc. | Folding knife |
US11498199B2 (en) | 2018-07-09 | 2022-11-15 | Milwaukee Electric Tool Corporation | Utility knife with tape hook recess |
Also Published As
Publication number | Publication date |
---|---|
DE3277404D1 (en) | 1987-11-05 |
EP0100377A1 (de) | 1984-02-15 |
ATE29978T1 (de) | 1987-10-15 |
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