EP2314430B1 - Couteau - Google Patents

Couteau Download PDF

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Publication number
EP2314430B1
EP2314430B1 EP10007563.9A EP10007563A EP2314430B1 EP 2314430 B1 EP2314430 B1 EP 2314430B1 EP 10007563 A EP10007563 A EP 10007563A EP 2314430 B1 EP2314430 B1 EP 2314430B1
Authority
EP
European Patent Office
Prior art keywords
blade holder
housing
handle
blade
cutting
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.)
Active
Application number
EP10007563.9A
Other languages
German (de)
English (en)
Other versions
EP2314430A1 (fr
Inventor
Martin Rohrbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Martor KG
Original Assignee
Martor KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Martor KG filed Critical Martor KG
Publication of EP2314430A1 publication Critical patent/EP2314430A1/fr
Application granted granted Critical
Publication of EP2314430B1 publication Critical patent/EP2314430B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/003—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use comprising retraction means for the blade or the blade holder

Definitions

  • the invention relates to a knife according to the preamble of claim 1.
  • Such a knife is known from the DE 197 23 279 ,
  • the knife has a blade holder mounted so as to be translationally displaceable in the knife housing and which can be moved by means of a handle between a rear position and a front position.
  • a knife is known in which the blade holder is movable by an actuating element from a safety position to a first cutting position.
  • a support member secured to the actuator is in engagement with the housing.
  • a cutting force of the blade holder is movable to a second cutting position. The movement into the second cutting position of the engagement of the support member is released.
  • the blade carrier performs a complex movement when moving to the first cutting position.
  • a knife in which the blade holder is movable by a cutting force from a first cutting position to a second cutting position.
  • a support member secured to the blade carrier engages the housing by movement from the first cutting position to the second cutting position.
  • the object of the invention is to provide a knife that in terms of its safety, as well as the manufacturability and its Functionality represents another advantageous alternative. Furthermore, it is an object of the invention to provide a knife that allows a compact design.
  • the principle of the invention is that the blade holder is movable with an actuator from a safety position, in which the blade is retracted into the housing inaccessible to the user, to a cutting position in which the blade protrudes from the blade housing.
  • the blade holder is translationally movable and rotatably mounted. Due to the rotatable mounting of the region of the actuator, which cooperates with the blade holder, perform a complex movement, for example, has movement components in two spatial directions. It can be, for example, a composite movement of a pivoting movement and a translational movement act.
  • the area of the operating member which cooperates with the blade holder is thus not limited to a straight-line movement, as was the case in the prior art.
  • the actuator may, for example, perform a pivotal movement, wherein the cooperating with the actuator blade holder performs a pivoting movement and a linear movement.
  • the actuating device comprises at least one handle.
  • the actuator comprises e.g. at least one actuating element for actuating the blade holder.
  • the actuator is e.g. movable with the handle from a basic position to a first pivot position.
  • the handle is e.g. moved from an unactuated to an actuated position to move the actuator from the home position to the first pivot position.
  • the actuator may e.g. be formed by an actuating lever, which cooperates with the blade holder.
  • the blade holder is e.g. pivotable relative to the actuating lever.
  • the operating lever when moving between the home position and a first pivoting position, pivots at a predetermined pivoting angle, thereby moving the blade holder from the safety position to the first cutting position.
  • the actuating element is mounted for example on the housing. It may be mounted directly or indirectly in the housing.
  • the actuating element may be mounted, for example, on the handle.
  • the actuator can be actuated, for example, directly or indirectly.
  • the handle and the actuator can eg be formed of separate parts. Alternatively, for example, the handle and the actuating element may be formed by a component.
  • the handle can form, for example, a region of the actuating element.
  • the handle can, for example, form part of the housing.
  • the actuating element may be mounted, for example, on the handle.
  • the actuator forms in the context of the invention with the blade holder a pivot joint.
  • the actuating element can be connected to the blade holder by means of a pivot joint.
  • the actuator may e.g. firmly connected to the blade holder.
  • the actuator may be e.g. releasably connectable to the blade holder. In the connected state, blade holder and actuating element are then pivotable relative to each other.
  • the blade holder is translationally movable and / or rotatably mounted on the housing.
  • "Translationally movable” in the sense of the invention means that the blade holder is movable along a path.
  • the web can e.g. be straight or curved or have straight and curved portions.
  • the advantage of the invention is that the knife comprises only a few parts and a simple construction is possible.
  • the knife is easy to produce in this way and causes low production costs.
  • the knife according to the invention has a high reliability.
  • the knife components knife housing, handle, actuator, blade holder with blade and possibly support element can form elements of a transmission.
  • the actuator can eg form a four-bar linkage with the handle and the blade holder.
  • the actuator may, for example, comprise two handlebars which are articulated on the one hand and on the other hand on the blade holder.
  • the blade holder By having the blade holder e.g. during the movement from the second cutting position to the safety position performs a pivoting movement in the direction of the cutting material, the resulting frictional force between blade and cutting material increases during cutting. In this way it is e.g. possible very thin materials, e.g. To cut foil.
  • the design of the transmission elements may include e.g. the extension movement of the blade carrier when operating the handle are determined.
  • a support element is provided by means of which the blade holder can be detachably supported on the housing.
  • the support element may for example be assigned to the blade holder or the housing.
  • the support member of the blade holder can be releasably supported on the housing.
  • the support element limits, for example, the degree of freedom of the blade holder, so that the blade holder is forced into the first pivot position.
  • the support element may for example form a support.
  • Supporting element according to the invention may be a pressure-resistant or tensile-stressed element.
  • the support member can thereby be disengaged.
  • the blade holder then has an additional degree of freedom, which allows it to move back into the housing, although the handle is actuated.
  • the blade holder By means of the support member, the blade holder a certain movement can be specified. By means of the support member, a distance between the blade holder and the housing can be bridged. In addition, a safety function can be ensured by means of the support element, wherein the blade moves back into the safety position when the handle is actuated into the housing when the cutting reaction force on the blade falls below a certain value. This is e.g. possible because the engagement of the support element is releasable. The release of the engagement of the support element may e.g. by the cutting reaction force, also called cutting force done.
  • the actuating device comprises a lever designed as an actuating element which is pivotally connected to a part of the housing.
  • the actuator may be attached to a moving part of the knife be stored.
  • the actuator may be mounted on the handle. The actuator can be pivoted from a home position to a first pivotal position when the handle is moved from the unactuated position to an actuated position.
  • the actuating element is connected by means of a pivot joint fixed to the blade holder.
  • the blade holder is movably connected to the actuator.
  • the blade holder and the actuator can take different angular positions to each other.
  • the actuating element is associated with the handle.
  • the handle can be formed integrally with the second end region.
  • the handle can e.g. be formed by a portion of the actuating lever.
  • the handle may be e.g. be designed as a separate component and interact with the actuator.
  • the handle can e.g. releasably cooperate with the actuator.
  • a first end portion of the actuator may e.g. be connected to the blade holder and a second end portion of the actuating element may be connected to the handle.
  • the actuating element is firmly connected to the handle.
  • the actuator may be firmly connected to the handle, for example by means of a hinge.
  • the actuating element may, for example, be pivoted to the handle. Upon movement of the handle from the unactuated position to the actuated position, the actuator, which is movably connected to the handle, is moved along this path of movement.
  • the handle is formed by a lever which is pivotally hinged to the housing, wherein the handle is pivotable at least between an actuated position and an unactuated position.
  • the handle can be pivoted in this manner in a plier-like manner relative to the housing, the actuating element being e.g. is moved from a home position to a first pivot position.
  • the handle is loaded by a spring element in the unactuated position.
  • the handle is then automatically moved to the unactuated position as soon as the user no longer exerts any force on the handle.
  • a support element is provided, which is assigned to the blade holder or the housing, by means of which the blade holder is detachably supported on the housing at least in the first cutting position.
  • the support member may limit the degree of freedom of the blade holder. It can form a support around which the actuating element is rocker-like pivotable.
  • the support element may e.g. be attached to the actuator and be at least indirectly engageable with the housing.
  • the support element may e.g. cooperate with a stop member which is fixed to the housing.
  • the support member may be e.g. be attached to the housing and be engageable with the blade holder.
  • a stop element may be provided which cooperates with the support element.
  • a fixed housing stop is provided, on which the blade holder is supported. With the stop can be imposed on the blade holder a certain trajectory. By the stop of the blade holder can be moved in the actuation of the handle from an unactuated position to an actuated position from a safety position to a first cutting position in which it protrudes from the housing.
  • the stop may be formed, for example, on the housing. The stop can interact, for example, with the support element, which is attached to the blade holder, for example.
  • the support member is releasably engageable with the housing or the blade holder.
  • the degree of freedom of the blade holder when engaging the support member can be limited in a certain way and released by loosening the support member.
  • the blade holder may be e.g. move back from the second cutting position towards the safety position when the engagement of the support member is released, regardless of whether the handle is in the actuated position.
  • the actuator associated with the blade holder may move to the home position upon movement of the blade holder to the safety position.
  • the support element can only be brought into pressure-tight engagement with the housing or the blade holder.
  • the engagement of the support member with the housing or the blade holder can be easily solved in this embodiment again.
  • the release of the support element from the engagement can be done for example by a rotary movement or a translational movement of the blade holder.
  • the support element is designed approximately rod-shaped.
  • the rod shape e.g. a distance between the actuator and the housing are bridged.
  • the support member is pivotally attached to the blade holder. Due to the pivotal mounting of the support lever to the blade holder, the blade holder may be in different positions in engagement with the housing. If the support member is moved out of engagement with the housing, it can be pivoted to a position in which undesirable re-engagement with the housing is prevented as long as the handle is in the actuated position.
  • a bearing seat is formed on the housing or on the blade holder, with which the support element is releasably engageable.
  • the bearing seat may e.g. from a recess, e.g. be formed by a notch, by which an unintentional release of the support member is prevented from engaging.
  • the mating surface is formed adjacently at least one guide surface which guides the support element into engagement with the mating surface, in particular the bearing seat.
  • two guide surfaces may be provided, wherein a first guide surface guides the support element into the recess during the movement of the blade holder into the first cutting position. After the support element has come out of engagement with the recess, the blade holder, for example, can move back in the direction of home position when operated handle. In this case, the support element can be applied, for example, to the second guide surface, which guides the support element to the first guide surface.
  • the support element is loaded by at least one spring element in a neutral position. Upon pivoting of the support element in at least one direction of rotation, the support element is then loaded back into the neutral position. If the blade holder is moved after the engagement of the support element with the stop element in the first cutting position, while the support member can pivot relative to the actuating element and tension the spring element.
  • the spring element may e.g. be formed by a tension spring or by a compression spring or by another suitable spring element.
  • the spring element may e.g. formed on the blade holder and integrally formed therewith.
  • the blade holder is translationally movable and / or rotatably mounted indirectly or directly on the housing.
  • the blade holder may e.g. be provided with at least one guide element which corresponds to a guide structure of the housing or the handle.
  • the guide element may e.g. be formed by a cylinder stub which is received in a formed in the housing guide groove or a backdrop.
  • the blade holder is movable from the safety position to a first cutting position, in which the blade protrudes from the housing, and by a additional movement of the first cutting position in at least one second cutting position movable. From the second cutting position of the blade holder is moved back to the safety position.
  • the different positions of the blade holder can be assigned positions of the actuating element and the support element. For example, by the movement from the first cutting position to the second cutting position, a movement of the actuating element and / or the support element can be controlled. Movement of the blade holder from the first to the second cutting position may be accomplished, for example, by the cutting force acting on the blade when cutting when the blade is moved into the cutting material.
  • the blade holder e.g. be supported by the support member on the housing.
  • the support member may be e.g. move out of engagement with the housing or the blade holder.
  • the support member is engaged when the blade holder is moved to the first cutting position and the support member is disengaged when the blade holder is moved to the second cutting position with movement moved to the actuated position the blade holder is prevented in the safety position when the support member is engaged and a movement of the blade holder is possible in the safety position when the support member is disengaged.
  • the actuating element can be moved from a first pivot position to a second pivot position.
  • the Support element to be moved out of engagement with the housing or with the actuating element.
  • the blade holder is mounted such that a cutting force acting on the blade causes a translational movement and / or a pivoting movement of the blade holder, wherein the blade holder is moved from the first cutting position to the second cutting position.
  • the actuating element is e.g. moved from the first pivot position to a second pivot position.
  • the receiving space is formed jointly by a housing shell of the knife and the handle.
  • the receiving space of the housing and the receiving space of the handle are connected to each other.
  • the housing shell and the handle form e.g. the case of the knife.
  • the actuating element can be arranged at least partially in the receiving space of the handle.
  • a spring element loading the actuating element into the basic position can e.g. be arranged in the receiving space of the handle.
  • the design of the knife can be made flexible in this way, since an additional receiving space is available in which functional parts of the knife can be added.
  • a further embodiment is characterized in that the actuating device comprises at least one transmission device and a handle.
  • a further embodiment is characterized in that the transmission device is connected to the handle and to the blade holder.
  • the transmission device comprises an actuating element designed in particular as a lever.
  • a further embodiment is characterized in that the transmission device, in particular the actuating element, is fixedly connected to the blade holder by means of a pivoting joint.
  • the transmission device designed in particular as an actuating element, in particular by means of a joint, is firmly connected to the handle.
  • a knife as a whole is denoted by the reference numeral 10 in the figures.
  • Like reference numerals in the various figures also indicate corresponding parts when letters are added.
  • the knife 10 essentially has a housing 11, a handle 12, a blade holder 13 and an actuating element 14.
  • the handle 12 and the actuator 14 are parts of an actuator V.
  • the handle 12 comprises a carrier 15 and an operating instruction 16 which is fixedly connected to the carrier 15.
  • the handle 12 is movably guided in a receiving space A of the housing 11 in the directions x1 and x2.
  • the handle 12 is made of the in Fig. 1 shown, unconfirmed position in the direction x1 in an example in Fig. 2 shown, actuated position movable. From the actuated position, the handle 12 is movable in the direction x2 in the unactuated position.
  • the handle 12 is loaded by a spring element 19 in the unactuated position.
  • the spring element 19 is fastened to a fastening means 21 integrally formed on the handle 12 as well as to a retaining bolt 23 integrally formed on the housing 11.
  • a cylinder stub 24 is formed, which is guided in a groove 12 formed in the handle 12.
  • the blade holder 13 forms with the groove 25 a joint G2.
  • the blade holder 13 is displaceable in this way parallel to a longitudinal center axis m of the groove 25 in the directions x1, x2 and about a pivot axis a2 of the cylinder stub 24 in the directions q1, q2 (see Fig. 1 ) pivotable.
  • the blade holder 13 can between a safety position (see Fig. 1 ), a first cutting position (see Fig. 2 ) and a second cutting position (see Fig. 3 ) are moved.
  • the blade holder 13 has a holder, not shown, for a blade 27.
  • the blade holder 13 In the safety position, the blade holder 13 is arranged such that the blade 27 is retracted into the housing 11 and inaccessible to a user. In the safety position, the blade 27 does not protrude out of the housing 11 (see Fig. 1 ). In the first cutting position and in the second cutting position, the blade 27 protrudes out of the housing 11 (see FIGS Fig. 2 and 3 ).
  • a rear extension 26 of the blade holder 13 is connected by means of a joint G3 with a pivot axis a3 fixed to a first end portion 49 of the actuating element 14.
  • Of the Blade holder 13 is pivotable relative to the actuating element 14 by means of the joint G3.
  • the actuator 14 and the blade holder 13 are movably connected to each other.
  • the actuating element 14 is pivotably mounted on the handle 12 at a second end region 50 with a joint G4, which has a pivot axis a4.
  • the actuating element 14 can be pivoted in this way with respect to the handle 14 in the directions p1, p2.
  • An elastically deformable element 28, for example a tension spring, loads the actuating element 14 into the, for example, in FIG Fig. 1 illustrated basic position in which the actuator 14 holds the blade holder 13 in the safety position.
  • the spring element 28 is fastened to a fastening means 30 of the actuating element 14 and to a fastening means 32 of the handle 12.
  • a support element 33 is pivotally mounted on the blade holder 14 with a pivot joint G5 having a pivot axis a5.
  • An end region 34 of the support element 33 lies in the in Fig. 1 illustrated basic position of the actuating element 14 on a surface 35 of a housing structure 31 in the form of a recess 36, wherein the housing structure 31 forms a bearing seat for the end portion 34.
  • the support member 33 is loaded by at least one spring element, not shown, in a neutral position.
  • the pivoting of the actuator 14 from the home position to the first pivotal position occurs against the spring force of the spring member 28.
  • the blade holder 13 rotates clockwise in the direction of FIG Fig. 1 pivoted about the pivot axis a2.
  • the blade holder 13 about the pivot axis a3 relative to the actuating element 14 according to the Fig. 1 and 2 pivoted clockwise.
  • the cylinder stump 24 fixedly connected to the blade holder 13 is moved in the direction of x1 in the groove 25 formed in the handle 12. While the cylinder stub 24 in the safety position of the blade holder 13 according to Fig. 1 is located at an end portion 52 of the groove 25, the cylinder stub 24 is in the first cutting position of the blade holder 13 according to Fig. 2 in the direction of an end portion 53 of the groove 25 moves.
  • a cutting reaction force F on the blade 27 Acts in the in Fig. 2 shown position of the knife 10 a cutting reaction force F on the blade 27, the blade holder 13 pivots from the first cutting position about the pivot axis a2 in the clockwise direction q1 in the in Fig. 3 illustrated second cutting position. It should be noted that the cutting reaction force on the blade 27 may also act on the blade 27 in a direction other than the indicated direction. In Fig. 2 the force F acts at right angles to the cutting edge S.
  • the cutting reaction force F can have portions which act in parallel to a blade S of the blade 27 as well as other portions which act at right angles to the blade S.
  • the actuating element 14 Since the blade holder 13 is movably connected via the joint G3 with the actuating element 14, the actuating element 14 is thereby in the in Fig. 3 shown second pivot position moves.
  • the support member 33 moves due to the pivotal movement of the actuating element 14 in the second pivot position out of engagement with the recess 36 and is of the spring element, not shown, relative to the actuating element 14 in the direction u2 in the in Fig. 3 shown neutral position moves.
  • the actuating element 14 of the spring element 28 from the second pivot position about the pivot axis a4 clockwise in Direction p2 into the in Fig. 4 shown basic position moves, although the handle 12 is in the actuated position.
  • the blade holder 13 is moved in the direction x2 in the safety position, in which the blade 27 fixed to the blade holder 13 is retracted into the accommodating space A of the housing 11.
  • the blade holder 13 is further pivoted about the pivot axis a2 in the direction q2.
  • the handle 12 is moved by the spring element 19 in the direction x2 in the unactuated position.
  • the end region 34 of the support element 33 slides along the inner surface 48 and is guided from the inner surface 48 to the outer surface 35.
  • Fig. 1 The unactuated position of the handle is in Fig. 1 shown.
  • Fig. 1 is the support member 33 again with the end portion 34 on the outer surface 35 at.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (5)

  1. Couteau avec un support de lame (13) pour loger une lame (27) et avec un dispositif d'actionnement (12, 14) pour actionner le support de lame (13), lequel présente au moins une prise (12) et au moins un élément d'actionnement (14), le support de lame (13) étant monté mobile dans un boîtier (11) entre au moins une position de sécurité et au moins une position de coupe, la lame (27) étant disposée dans le boîtier (11) inaccessible à l'utilisateur en position de sécurité et la lame (27) dépassant d'une ouverture (47) du boîtier (11) en position de coupe, le dispositif d'actionnement (12, 14) étant mobile entre une position non actionnée et une position actionnée, le support de lame (13) étant mobile de la position de sécurité dans une première position de coupe dans laquelle le support de lame (13) ne peut pas revenir en position de sécurité lors de la prise (12) déplacée en position actionnée, et le support de lame (13) pouvant se déplacer grâce à un effort de coupe de la première position de coupe dans une deuxième position de coupe dans laquelle le support de lame (13) peut revenir en position de sécurité lors de la prise (12) en position actionnée, caractérisé en ce que le support de lame est muni d'un élément de soutien qui est mobile librement en prise avec une contre-surface au niveau du boîtier, ou en ce que l'élément de soutien est fixé au niveau du boîtier et peut être mis en prise librement avec le support de lame, le support de lame (13) pouvant être soutenu librement avec l'élément de soutien (33) au niveau du boîtier (11) et la prise de l'élément de soutien (33) est libérée par un mouvement du support de lame (13) de la première position de coupe dans la deuxième position de coupe.
  2. Couteau selon l'une des précédentes revendications, caractérisé en ce que la prise (12) est formée d'un levier, qui est articulé pivotant au niveau du boîtier (11) ou est formée par un coulisseau qui est mobile en translation dans un espace de logement (A) du boîtier (11) entre au moins deux positions.
  3. Couteau selon l'une des précédentes revendications, caractérisé en ce que l'élément de soutien (33) est réalisé sensiblement en forme de barre.
  4. Couteau selon l'une des précédentes revendications, caractérisé en ce que l'élément de soutien (33) est fixé pivotant au niveau du support de lame (13).
  5. Couteau selon l'une des précédentes revendications, caractérisé en ce que la contre-surface (35), en particulier un siège de palier (36, 37), est réalisée au niveau du boîtier (11) ou au niveau du support de lame (13), avec laquelle contre-surface (35) l'élément de soutien (33) peut être mis en prise librement.
EP10007563.9A 2009-10-22 2010-07-21 Couteau Active EP2314430B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009050380A DE102009050380A1 (de) 2009-10-22 2009-10-22 Messer

Publications (2)

Publication Number Publication Date
EP2314430A1 EP2314430A1 (fr) 2011-04-27
EP2314430B1 true EP2314430B1 (fr) 2017-05-24

Family

ID=43447848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10007563.9A Active EP2314430B1 (fr) 2009-10-22 2010-07-21 Couteau

Country Status (3)

Country Link
EP (1) EP2314430B1 (fr)
DE (1) DE102009050380A1 (fr)
ES (1) ES2638313T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200023528A1 (en) * 2018-07-17 2020-01-23 Martor Kg Utility knife

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011007234B3 (de) 2011-04-12 2012-09-20 Martor Kg Sicherheits-Messer
CN105538346B (zh) * 2016-01-22 2017-08-29 方应伟 一种新型百格刀

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723279C1 (de) 1997-06-04 1998-04-23 Beermann Kg Martor Argentax Messer
FR2911532B1 (fr) * 2007-01-19 2009-12-11 Mure & Peyrot Couteau a lame retractable automatiquement
FR2915416B1 (fr) * 2007-04-27 2010-01-22 Mure & Peyrot Couteau de securite a dispositif de retraction automatique de lame en fin de coupe
DE102007052060A1 (de) * 2007-10-30 2009-05-07 Martor Kg Messer
DE102008019441A1 (de) * 2008-04-17 2009-10-22 Martor Kg Messer
DE202008005369U1 (de) * 2008-04-17 2009-08-27 Martor Kg Messer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200023528A1 (en) * 2018-07-17 2020-01-23 Martor Kg Utility knife
US11565432B2 (en) * 2018-07-17 2023-01-31 Martor Kg Utility knife

Also Published As

Publication number Publication date
ES2638313T3 (es) 2017-10-19
DE102009050380A1 (de) 2011-04-28
EP2314430A1 (fr) 2011-04-27

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