Source: https://patents.google.com/patent/DE3834295C2/en
Timestamp: 2020-08-11 16:39:00
Document Index: 214927414

Matched Legal Cases: ['arts 13', 'arts 13', 'art 14', 'art 43', 'art 14', 'art 43', 'art 43']

DE3834295C2 - Folding knife - Google Patents
DE3834295C2
DE3834295C2 DE19883834295 DE3834295A DE3834295C2 DE 3834295 C2 DE3834295 C2 DE 3834295C2 DE 19883834295 DE19883834295 DE 19883834295 DE 3834295 A DE3834295 A DE 3834295A DE 3834295 C2 DE3834295 C2 DE 3834295C2
DE19883834295
DE3834295A1 (en
Louis S Glesser
1987-11-25 Priority to US07/125,149 priority Critical patent/US4776094A/en
1988-10-08 Application filed by Louis S Glesser filed Critical Louis S Glesser
1989-07-27 Publication of DE3834295A1 publication Critical patent/DE3834295A1/en
1996-12-12 Publication of DE3834295C2 publication Critical patent/DE3834295C2/en
2011-01-25 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22418406&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3834295(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
The invention relates to a folding knife according to the generic features of claim 1.
Such a folding knife is known from DE 32 17 529. Such folding knives are used particularly by hunters and fishermen or craftsmen and especially on belt loops carried with a shackle attached to the folding knife. On Knife of this type is known from DE 82 15 950 U1, the opposite to the blade a snap hook on the Has grip. Wearing it on a belt or on the Clothing primarily serves to attach the blade or the tools to make the knife more accessible without having to put it in one To have to grab a bag. Loosening the shackle and that Folding out the blade or the tools is very much time consuming, since the handle with a Hand is held while using the fingers of the other hand the tongue of the shackle is actuated or the blade is folded out becomes. This is especially true when used in winter time-consuming, since the generally worn Gloves must be removed and opened with clammy fingers is difficult. In addition, the force is on the blade limits when cutting.
Accordingly, the invention is based on the object Simplify handling and operation of the folding knife and Specify ways to apply pressure to the blade.
This task is solved by a folding knife with the Features of claim 1.
The rigid arrangement of the shackle as a continuation of the Handle allows the shackle to be released without counter support second hand, so that not only the shackle with the thumb one Can be operated by hand, but also by the blade One-handed operation from the folded position to the Working position can be brought. By deepening or The thumb of one hand can make openings on the blade on the blade attack and thus open it. Both the back of the Both the blade and the shackle have an adapted to the thumb Form on, so that the operation by the exertable pressure on the blade is further improved. Are in the working position the shape of the blade and the shackle matched so that a broad thumb support surface is created on the back. Also releasing the blade from the locked working position can be done even with gloves. Further advantageous configurations for use under rough Conditions with simple handling are the subject of Subclaims.
The invention is based on two exemplary embodiments explained and described below. In the drawings demonstrate:
Figure 1 is a side view of the folding knife with the blade in the working position.
FIG. 2 shows a side view of the folding knife according to FIG. 1 with the blade folded in; FIG.
Fig. 3 is a cross-section according to the arrows 3-3 in Fig. 2;
Fig. 4 is a side view of the opposite side of Fig. 2;
FIG. 5 shows a top view of the folding knife with the blade unfolded according to FIG. 1;
Fig. 6 is a side view of a second embodiment of the folding knife with tools provided on the handle.
In Fig. 1 and 2 is generally indicated by the arrow 10, a folding knife. The handle of the folding knife 10 is provided with the reference numeral 11 and carries a blade 12 which can be folded alternately from the open position in FIG. 1 to the rest or transport position according to FIG. 2. The blade 12 , in its closed position, is embedded in a slot between a pair of elongated side parts 13 and 14 . These are separated by an intermediate piece 15 and held together by a multiplicity of rivets, fastening screws or the like, as is shown by reference number 16 . The side parts 13 and 14 contain semicircular cutouts 17 , so that part of a locking lever 18 remains free. The locking lever 18 serves to hold the blade 12 securely in the open working position. The cutouts 17 are so large that a hand with gloves can engage in the cutouts 17 in order to be able to close the folding knife 10 by releasing the locking lever 18 .
As shown in Fig. 2, the blade 12 is pivotally mounted on the handle 11 by means of a pivot pin 23 . A leaf spring 24 is fixed at one end to the intermediate piece 15 in a slot so that its opposite end presses against the underside of the locking lever 18 . The leaf spring 24 is substantially arcuate, so that tension is exerted against the underside of the locking lever 18 , and thus the other end 25 of the locking lever 18 is pressed onto a smooth surface 26 on the underside of the blade 12 . In this way, the blade 12 is held securely in its closed position according to FIG. 2 by the tension of the leaf spring 24 .
Referring to FIG. 1, the blade 12 is pivoted against the tension of this leaf spring 24 during unfolding, wherein the hook-shaped locking lever 18 assumes the position shown in Fig. 2 in dashed lines. When the blade 12 is unfolded further, the front end 25 of the locking lever 18 is guided along the cam-shaped surface 27 . When the blade 12 is fully extended, the front end 25 of the locking lever 18 engages in a corresponding groove 28 on the blade 12 . Under the tension of the leaf spring 24 , the locking lever 18 pivots about its pivot point 30 , so that the end 25 is held securely in the groove 28 .
Contrary to the cutting edge 32 of the blade 12 , wire cutters or the like can be provided on the upper side thereof, as is indicated by the reference number 31 . Here, a sharpened edge 29 is provided in order to be able to cut off wires, cords or the like.
At the back of the blade 12 , a bulge 33 is provided, which receives a recess or an opening 34 . This bulge 33 of the blade 12 with the opening 34 provided therein serves to open the blade 12 with only one hand. For example, the thumb of one hand engages in the opening 34 , while the grip 11 lies in the area of its intermediate piece 15 in the palm of the hand. By pushing the thumb outwards, the folding knife 10 opens, and after overcoming the initial resistance of the leaf spring 24, the blade 12 can easily be moved into its fully extended position until the end 25 engages in the groove 28 .
Fig. 1 and 2 further show that the handle 11 is provided with elongated slots 40 in the side portions 13. Like the large semicircular cutouts 17, they serve to drain the folding knife 10 when it is used under moist or wet conditions. These openings thus serve to improve the drying of the interior of the handle 11 in order to reduce or prevent rust formation or accumulation of dirt. Of essential importance is the shackle 41 , which is formed in one piece with the side part 14 , which continues this. The shackle 41 extends in the extension of the handle 11 in the direction of the unfolded blade 12 and has a bow-shaped extension 42 which, in conjunction with a resilient part 43 , in particular a spring, closes the opening of the extension 42 . The end of the spring lies against a shoulder 49 , the interior of the shackle 41 being closed. The shackle 41 is used to hang the folding knife 10 on a belt or belt loop or other eyelets on the user's clothing.
A special feature is the formation of the shackle 41 with a slightly curved rear 44 , the trough-like curvature of which corresponds to the rear 45 of the blade 12 . The outer shape of the back 45 of the blade 12 and the back 44 of the shackle 41 are adapted to each other. This trough-like design allows the user's thumb to be pressed against the back of the blade 12 and the shackle 41 when the folding knife 10 is used, if additional pressure is to be exerted on the blade 12 . In addition, the hand of the user can attack further forward than is possible with conventional folding knives 10 by pressing the hand against the adjacent and interacting rear sides 44 and 45 . In addition, the use of the folding knife 10 is not impeded by the shackle 41 arranged closely next to the blade 12 . The opening 34 for the one-hand operation is arranged essentially coaxially with the opening of the shackle 41 , as is indicated in FIG. 1.
If desired, the folding knife 10 can be carried in addition to the shackle 41 by a cord or other fastening means on the user's equipment or clothing, for example a cord can be inserted into an opening 46 .
As shown in Fig. 4, a substantial portion of the surface of the handle 11 , e.g. B. the side part 14 can be used for display or labeling purposes. A scale 47 is shown here, which may be useful for the user to carry out measurements and the like. For other areas of application, tables or the like can be provided on the display area of the handle 11 .
From Fig. 5 it can be seen that the shackle 41 is located directly next to the blade 12 when it is in the open working position. There is no mutual interference. The resilient part 43 is held by a riveted or screwed plate 48 . The plate 48 can also be used to receive the pivot pin 23 . By removing the plate 48 , maintenance and repair work can be carried out on the folding knife 10 , for example for the part 43 or the pivot pin 23 .
In Fig. 6, another embodiment is shown, where the handle 52 opposite end 50 has at its shackle a crowbar. The blade is provided with the reference number 53 . Of course, the handle 50 can also be provided with further tools which, like the crowbar 51, are formed in one piece with the latter.
1. folding knife with an elongated handle and a foldable from a rest position in the handle into a working position about a pivot pin, on the back of which a bulge is provided with a thumb engagement recess or opening, characterized in that the handle ( 11 , 50 ) adjacent for the pivot pin ( 23 ) has a bracket-like extension ( 42 ) which is formed in one piece with the handle ( 11 , 50 ) or its side parts ( 13 , 14 ) and is designed as a shackle ( 41 , 52 ) and on its rear side ( 44 ) forms a rounded thumb contact surface.
2. Folding knife according to claim 1, characterized in that the back ( 45 ) of the blade ( 12 , 53 ) and the back ( 44 ) of the shackle ( 41 , 52 ) have a matching shape when the blade ( 12 , 53 ) is folded out and lying side by side are arranged.
3. Folding knife at least according to claim 1 or 2, characterized in that the handle ( 11 ) has semicircular cutouts ( 17 ) on its rear side, in which a spring-loaded locking lever ( 18 ) can be pivoted.
4. Folding knife according to claim 3, characterized in that the locking lever ( 18 ) on its front side with the folded-out blade ( 12 ) cooperating locking element ( 25 , 28 ).
DE19883834295 1987-11-25 1988-10-08 Folding knife Expired - Fee Related DE3834295C2 (en)
US07/125,149 US4776094A (en) 1987-11-25 1987-11-25 Snap shackle utility knife
DE3834295A1 DE3834295A1 (en) 1989-07-27
DE3834295C2 true DE3834295C2 (en) 1996-12-12
ID=22418406
DE19883834295 Expired - Fee Related DE3834295C2 (en) 1987-11-25 1988-10-08 Folding knife
US (1) US4776094A (en)
JP (1) JP2661729B2 (en)
DE (1) DE3834295C2 (en)
JPH0464361U (en) * 1990-10-12 1992-06-02
FR2732637A1 (en) * 1995-04-10 1996-10-11 Cellier Christophe Knife, with blade closed with a lockable catch,
FR2744663B1 (en) * 1996-02-13 1998-04-03 Cheron Henri Mobile blade knife
CN1159135C (en) * 1996-10-29 2004-07-28 维科托里诺克斯公司 Multifunctional tool
FR2759936B1 (en) * 1997-02-24 1999-05-14 Jean Claude Bibollet Multifunctional knife
FR2838368B1 (en) * 2002-04-15 2004-11-26 Celestino Esteves Tool-carabiner locking system
WO2006133049A1 (en) 2005-06-03 2006-12-14 Kai U.S.A. Ltd., Dba Kershaw Knives Closable knife with opening mechanism
USD746657S1 (en) * 2013-12-06 2016-01-05 Spyderco, Inc. Folding knife with multiple blades
USD739202S1 (en) 2014-02-10 2015-09-22 Spyderco, Inc. Dual blade folding knife
USD739698S1 (en) 2014-02-10 2015-09-29 Spyderco, Inc. Folding knife and multitool
USD739697S1 (en) 2014-02-10 2015-09-29 Spyderco, Inc. Folding knife and scissor tool
US20180154531A1 (en) 2016-08-29 2018-06-07 Gb Ii Corporation Dba Columbia River Knife & Tool Company Retractable knife for rapid manual deployment while fully grasped
US10434667B2 (en) 2017-08-30 2019-10-08 Jaguar Imports, LLC Double spring folding knife
US303855A (en) * 1884-08-19 Pocket knife
GB190317031A (en) * 1903-08-05 1903-09-17 Alfred Lines Improvements in Pocket Knives or Pen-knives, Intended to be Attached to the Watchchain, or to any Chain or Cord Attached to the Garments.
US1127609A (en) * 1912-04-13 1915-02-09 Frank Feyrer Combination-penknife.
US1645101A (en) * 1925-01-24 1927-10-11 John M Gibb Tire-repair tool
DE8215950U1 (en) * 1982-06-02 1982-09-23 Lombardi & Gruenbauer Gmbh, 7410 Reutlingen, De Carabine hook
1987-11-25 US US07/125,149 patent/US4776094A/en not_active Expired - Lifetime
1988-10-08 DE DE19883834295 patent/DE3834295C2/en not_active Expired - Fee Related
1988-11-22 JP JP63293747A patent/JP2661729B2/en not_active Expired - Lifetime
JPH01259890A (en) 1989-10-17
DE3834295A1 (en) 1989-07-27
JP2661729B2 (en) 1997-10-08
US4776094A (en) 1988-10-11
US8220160B2 (en) 2012-07-17 Box cutter with grip-actuated blade extension
DE69233729T2 (en) 2009-03-12 Shavers
CA2164085C (en) 1999-02-09 Knife with detachable support
US8117754B2 (en) 2012-02-21 Fixed-blade knife having a multi-purpose guard
WO2012069018A1 (en) 2012-05-31 Hand tool
1995-11-09 8110 Request for examination paragraph 44