EP3597379B1 - Couteau - Google Patents

Couteau Download PDF

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Publication number
EP3597379B1
EP3597379B1 EP19020253.1A EP19020253A EP3597379B1 EP 3597379 B1 EP3597379 B1 EP 3597379B1 EP 19020253 A EP19020253 A EP 19020253A EP 3597379 B1 EP3597379 B1 EP 3597379B1
Authority
EP
European Patent Office
Prior art keywords
blade
end position
links
knife according
knife
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
EP19020253.1A
Other languages
German (de)
English (en)
Other versions
EP3597379A1 (fr
Inventor
Martin Rohrbach
Kerry Henn
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 EP3597379A1 publication Critical patent/EP3597379A1/fr
Application granted granted Critical
Publication of EP3597379B1 publication Critical patent/EP3597379B1/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
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/08—Hand knives with adjustable blade; Pocket knives with sliding blade
    • 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
    • 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

Definitions

  • the invention relates to a knife.
  • Such a knife is known from US 9,370,869 B2 . It has a blade carrier with a blade held therein, which is mounted with two links on a housing, so that the blade carrier between a safety position in which the blade is protected in the housing and a cutting position in which the blade protrudes with respect to the housing , is movable.
  • the housing, the handlebars and the blade carrier form a four-bar linkage.
  • the links are arranged parallel to each other, so that the knife forms a four-bar parallelogram.
  • the DE 202 10 670 U1 relates to a knife with a housing and a blade carrier mounted displaceably in the housing.
  • the blade carrier can be moved between a safety position and a cutting position with a linkage comprising two levers which is supported on the housing, in that the linkage is moved between an angled and a straight position.
  • the US 6,898,858 B1 relates to a saw that is adjustable between a folded position and a use position.
  • the saw blade 22 is mounted on two struts 18, 20, which in turn are mounted in an articulated manner on a housing 12.
  • the saw blade, the struts and the housing form a four-bar linkage.
  • the four-bar linkage can be operated with an operating device.
  • the actuating device comprises the handle 10, the strut 36 and the strut 32.
  • the four-bar linkage is moved via a lever arm 46 of the lever 18. There is no mention of spring loading in the safety position.
  • the bolts 28 and 30 are provided for locking the position of use and the safety position.
  • the knife comprises a first part and a second part which is mounted so as to be movable relative to the first part. Due to a relative movement between the first part and the second part, the blade unit can, for example, be moved between the rear end position and the front end position. Alternatively, due to the relative movement of the first part to the second part, the blade unit can be moved between the rear end position and a position between the rear end position and the front end position.
  • the knife further includes a blade unit.
  • the blade unit includes, for example, a blade support and a blade held on the blade support. Alternatively, the blade unit can also have only one blade.
  • the knife comprises an adjustment device.
  • the blade With the adjustment device, the blade can be moved between at least one rear end position and at least one front end position.
  • the rear end position is, for example, a safety position and the front end position is, for example, a cutting position or, for example, a blade change position.
  • the safety position the blade is accommodated in a housing in such a way that the user cannot injure himself.
  • the cutting position the blade protrudes from the housing in such a way that a cutting process can be carried out.
  • the adjusting device comprises at least a first link and a second link, each link forming a joint with the blade unit and with the first part or with the second part, so that a coupling gear is formed.
  • the blade is directly or indirectly connected to the handlebars. E.g. the blade is held firmly in a blade holder.
  • the handlebars each form a joint with the blade holder, for example.
  • each link forms a joint directly with the blade.
  • the blade unit and the handlebars are, for example, only guided by means of the joints.
  • the blade unit and the handlebars are guided only by means of the joints on the first part and with a joint of a support element which connects a handlebar to the housing.
  • the joints are designed as hinge joints, for example. In this way, the blade unit is guided in relation to all spatial directions during the movement between the rear position and the front position.
  • the blade carrier can be moved in an imaginary casing tunnel with a small cross-sectional area between the rear end position and the cutting position. This allows a small housing to be constructed, which at the same time forms a handle.
  • the adjustment device forms a four-bar linkage.
  • the first part and the blade unit are e.g. part of the four-bar linkage.
  • Two handlebars connect e.g. the first part and the blade unit.
  • the coupling mechanism can have further links.
  • the second part is also part of the linkage.
  • the second part can e.g. also form a handlebar.
  • the second part is, for example, directly or indirectly connected to movement with the four-bar linkage.
  • At least one pair of four-bar linkage arms are parallel to each other.
  • two links connecting the first part and the blade unit are parallel.
  • a four-bar parallelogram can be formed.
  • the links of the linkage are not arranged in parallel.
  • the coupling mechanism can have an asymmetrical four-bar linkage. With an asymmetrical four-bar linkage, the blade's trajectory can be changed when moving between the rear position and the front position. With these features it is possible that the blade is in a flat one Moving tunnel moved between the safety position and the cutting position.
  • At least two links of the linkage have different lengths.
  • two handlebars which connect the first part and the blade to one another have different lengths.
  • Each link of the adjusting device has, for example, only one direction of rotation when moving between the safety position and the cutting position. In other words, when moving between the safety position and the cutting position, each link retains its direction of rotation and does not change its direction of rotation.
  • At least two links of the adjusting device have the same direction of rotation when moving between the safety position and the cutting position. This means that the direction of rotation of a link has the same direction of rotation at least in relation to the direction of rotation of a second link.
  • One embodiment is characterized in that the blade unit only performs a slight pivoting movement of ⁇ 45 ° or of ⁇ 30 ° or of ⁇ 10 ° or of ⁇ 5 ° when moving between the rear end position and the front end position.
  • This feature ensures that the housing can be designed to be narrow.
  • the blade leads a large one after exiting the housing Rotary movement of, for example, ⁇ 50 °. With these knives there was a relatively high risk of injury.
  • the second part is displaceable relative to the first part.
  • the first part or the second part forms, for example, at least one slide which can be moved relative to the other part, i.e. the second part or the first part.
  • the slide is movably connected to the blade carrier.
  • the slide is connected, for example, to the blade unit or to at least one handlebar, or can be brought into contact with the blade in such a way that the blade can be moved between the safety position and the cutting position.
  • a slide for operating the blade is provided on opposite sides of the knife.
  • a slide can be provided on three sides of the knife, e.g. on the back of the knife and on opposite flanks of the knife.
  • the slide can also be molded onto the blade carrier or connected to it in one piece. The user can move the blade carrier by means of the slide.
  • the second part is formed by a lever which forms a pivot joint with the first part.
  • the lever acts, for example, on the blade unit or on at least one link of the adjustment device.
  • the first part and the second part can, for example, form a pincer-like actuation in this way.
  • the first part and the second part can be formed, for example, by two articulated handle parts which can be moved like tongs.
  • the first part and / or the second part forms a housing in which the blade is protected in the safety position in such a way that a user does not come into contact with the cutting edge can guess. It is important here that the housing prevents damage to the blade. Impairment of the functional parts can also be prevented by means of the housing.
  • the housing therefore does not have to be completely closed. It just has to fulfill the functions mentioned above.
  • a wire frame can fulfill the function.
  • the housing should, for example, be designed in such a way that it can serve as a handle for the knife.
  • the housing should be designed in such a way that the user can hold the handle firmly and, if necessary, enclose it while the blade is moving between the rear end position and the front end position without reaching around.
  • the blade emerges from the housing only in a small area of the housing so that the blade can move out of the housing in this area without affecting the user when holding the knife by the handle.
  • the second part is directly or indirectly connected to movement with the coupling mechanism.
  • two handlebars are each connected to the first part and to the blade unit by means of a swivel joint.
  • a support element is, for example, connected to one of the links of the linkage and to the second part in such a way that when there is a relative movement between the first part and the second part, a moment is generated around one of the joints of the linkage, which moves the linkage. In this way, the blade can be moved between the end positions, for example.
  • the first part can be pivoted relative to the second part from a basic position in a first direction into an actuated position in order to move the blade carrier into the cutting position.
  • the first part can be pivotable relative to the second part from the basic position in a second direction into an open position in order to move the blade carrier into a blade changing position. In the blade changing position, the blade is accessible and can be changed.
  • the first part can be pivoted relative to the second part from a basic position in a first direction beyond an actuated position in order to move the blade carrier into the blade changing position.
  • a detachable stop can be provided which limits the movement of the blade carrier or the relative movement of the first part to the second part and thus possibly defines the foremost cutting position. When the stop is released, the first part can be moved relative to the second part beyond the actuated position.
  • the knife 10 comprises according to Fig. 1 a first part 11 and a second part 12, which with the first part 11 forms a swivel joint G1 with the swivel axis a1.
  • the second part 12 can be pivoted in the direction u2 towards the first part 11 or in the direction u1 away from it.
  • the relative movement used between the first part 11 and the second part 12 to operate the knife is not limited to a first part 11 and a second part 12, which with the first part 11 forms a swivel joint G1 with the swivel axis a1.
  • the second part 12 is designed as a housing and has a receiving space 13.
  • the housing protects the user from being injured on a cutting edge 39 of the knife 10 when the cutting edge 39 is arranged within the receiving space 13, and from being injured on functional parts.
  • the knife is protected against impairment of the mechanics, so that a safe function is guaranteed.
  • the second part 12 has a front end region 35 and a rear end region 36.
  • the knife also forms a knife back 37 and an underside 38.
  • the second part 12 is provided with an opening 33 and an opening 34.
  • the opening 33 is located at the front end region 35 and is provided for a blade 16 to exit.
  • the opening 34 is formed on the underside 38 and enables handlebars 17 and 18 to reach through the wall of the second part 12.
  • the knife 10 is provided with a blade unit which comprises the blade 16 and a blade carrier 15.
  • the blade 16 is, for example, held on the blade carrier 15 in a fixed manner, i.e. immovable in relation to the blade carrier 15.
  • the blade 16 can be detached from the blade carrier 15 and exchanged for another blade.
  • the knife 10 has an adjusting device with which the blade unit can be moved between a rear end position and a front end position relative to the first part 11 and the second part 12.
  • the adjustment device comprises the links 17 and 18.
  • the link 17 forms a joint G2 with the pivot axis a2 with the first part 11 and a joint G3 with the pivot axis a3 with the Blade carrier 15 off.
  • the link 18 forms with the first part 11 a joint G4 with a pivot axis a4 and with the blade carrier 15 forms a joint G5 with the pivot axis a5.
  • the links 17 and 18 could also form joints 16 directly with the blade.
  • a blade carrier 15 is provided, which makes it easier to change the blade 16.
  • a support 14 (see Fig. 2a ) forms with the link 18 a joint G6 with the pivot axis a6 and with the second part 12 a joint G7 with the pivot axis a7.
  • the support 14 limits the degree of freedom of the linkage.
  • the geometric pivot axes a1 to a7 of the pivot joints G1 to G7 are oriented essentially at right angles to a longitudinal axis m1 of the second part 12.
  • the swivel joint G1 (see Fig. 1 ) is formed by an axle element 20 which extends through a through opening 42 in the first part 11 and is fastened with both end regions 43 and 44 in recesses 45 and 46 on opposite walls of the second part 12.
  • the pivot joint G2 is formed by a journal 21 of the first part 11, which engages in a recess 22 in the link 17 and the pivot joint G3 is formed by a journal 23 of the blade carrier 15, which engages in a recess 24 in the link 17.
  • the pivot joint G4 is formed by a journal 25 of the first part 11, which engages in a recess 26 in the link 18, and the pivot joint G5 is formed by a journal 27 of the blade carrier 15, which engages in a recess 28 in the link 18.
  • the support 14 has an axle journal 29 which engages and engages in a recess 30 of the link 18 to form the joint G6 Axle element 31, which is fastened with both end regions on opposite walls of the second part 12, reaches through a recess 32 of the support 14 and forms the pivot joint G7.
  • the distance I1 between the joints G3 and G5 does not correspond to the distance I2 between the joints G2 and G4.
  • a connecting line S1 between the joints G2 and G3 is not parallel to a connecting line S2 between the joints G4 and G5, ie the four-bar link formed by the first part 11, the links 17 and 18 and the second part 12 is an asymmetrical one Four-bar. In this way, an advantageous path of movement of the blade carrier 15 can be achieved, which enables a relatively narrow housing.
  • a spring 19 is supported by a spring end 40 (see Fig. 2a ) on the first part 11 and with another spring end 41 on the handlebar 18.
  • the link 18 is loaded by the spring 19 in the direction of rotation v1.
  • the blade unit comprising the blade carrier 15 and the blade 16 with the adjusting device can be moved between the front end position and the rear end position relative to the first part 11.
  • the first part 11, the blade carrier 15 and the links 17 and 18 form a coupling gear.
  • the blade carrier 15 is movable relative to the first part 11 on a coupling curve between a rear end position and a front end position.
  • the blade carrier 15 is mounted exclusively on the links 17 and 18, i.e. it has no direct contact with the second part 12 during the movement between the rear and the front end position.
  • the front end position is a cutting position in which the blade 16 protrudes from the second part 12, so that a Cutting operation can be carried out and the rear end position is a safety position in which the cutting edge 39 of the blade 16 is protected inaccessible to a user by the second part 12.
  • the security position is in the Fig. 2 , 4 and 5 shown, the cutting position is in the Fig. 3 , 6th and 7th shown.
  • the support 14 introduces a force into the link 18, which pivots the link 18 about the pivot axis a4 in the direction v2 relative to the second part 12. Due to the movement coupling of the coupling gear, the link 17 is also pivoted about the pivot axis G2 in the direction w2 relative to the second part 12. With the two links 17 and 18, the blade unit is also moved on the coupling curve.
  • the blade 16 protrudes with the cutting edge 39 out of the opening 33 of the second part 12.
  • the blade 16 With a force F on the cutting edge 39 of the blade 16, the blade 16 can be supported on a support surface 48 of the reveal of the opening 33.
  • the force F then generates a moment in the link 17 in the direction w2 about the pivot axis a2 and in the link 18 a moment in the direction v2 about the pivot axis a4. These moments reduce the holding force for holding the blade carrier 15 in the front end position or in another cutting position.
  • the housing can be designed to be relatively narrow.
  • an advantage with regard to the safety of the knife is achieved because the blade emerges from the first part only in a narrow exit area, namely the knife opening 33. After the blade 16 has emerged from the housing-like second part 12, the blade 16 only performs a slight rotational movement.
  • the blade carrier 15 is moved against the restoring force of the spring 19 on a movement path (or coupling curve), which is caused by the four-bar linkage, in the direction x1 into the cutting position, the link 17 rotating about the pivot axis a3 in the direction p2 and the Handlebar 18 rotates relative to blade carrier 15 about pivot axis a5 in direction q2.
  • the spring 19 relaxes, so that the link 18 swivels about the pivot axis a4 in the direction v1 and the link 17 swivels about the pivot axis a2 in the direction w1.
  • the link 17 pivots relative to the blade carrier in the direction p1 about the pivot axis a3 and the link 18 pivots relative to the blade carrier 15 in the direction q1 about the pivot axis a5.
  • the second part 12 is in Direction u1 moved relative to the first part 11.
  • the blade carrier 15 moves back into the safety position in the direction x2.
  • a second embodiment of the knife according to the invention is in Figures 10 to 15 and designated as a whole by the reference symbol 100.
  • the knife 100 comprises a housing 111, which forms the first part within the meaning of the invention, and an actuating device with actuating lugs 112a and 112b.
  • the actuating device forms the second part within the meaning of the invention.
  • the housing 111 comprises a receiving space 113 in which a blade carrier 115 with a blade 116 held thereon is movably received.
  • the housing 111 has a front end region 135 and a rear end region 136.
  • the knife forms a knife back 137 and an underside 138.
  • the blade carrier 115 is between a rear end position (see FIG Fig. 10 and 13th ), and a front end position (see the Fig. 11 and 15th ) movable.
  • the rear end position is a safety position in which the blade 116 is inaccessible to the user in the receiving space 113
  • the front end position is a cutting position in which the blade 116 protrudes from an opening 133 of the housing 112. Apart from the rear end position and the front end position, there are further safety positions of the blade unit as well as further cutting positions.
  • the opening 133 is provided at the front end portion 135 of the housing 111.
  • the reveal of the opening 133 has a support surface 148 for supporting the blade 116.
  • the actuation lugs 112a and 112b are actuated via recesses 147a and 147b in the housing 111.
  • the blade unit comprising the blade carrier 115 and the blade 116 is removed from the position shown in FIG Fig. 10 safety position shown in Fig. 11 Relocated cutting position shown.
  • the front end position is defined by the stop of the actuating lugs 112a and 112b at a front end of the recesses 147a and 147b.
  • the blade carrier 115 is moved back into the safety position by a reset device.
  • the blade unit can be moved between the rear end position and the front end position by means of an adjustment device.
  • the adjusting device comprises links 117 and 118.
  • the link 117 forms a joint G2 with the pivot axis a2 with the housing 112 and a joint G3 with the pivot axis a3 with the blade unit, in this embodiment with the blade carrier 115.
  • the handlebar 118 forms a joint G4 with the pivot axis a4 with the housing 112 and a joint G5 with the pivot axis a5 with the blade unit.
  • the blade carrier 115 could be omitted and the links 117 and 118 would in this case each form a joint directly with the blade 116.
  • the pivot joint G2 is formed by a journal 121 of the housing 112, which engages in a recess 122 in the handlebar 117
  • the pivot joint G3 is formed by a journal 123 of the blade carrier 115, which engages in a recess 124 in the arm 117
  • the pivot joint G4 is formed by a journal 125 of the first part 111, which engages in a recess 126 in the link 118
  • the pivot joint G5 is formed by a journal 127 of the blade carrier 115, which engages in a recess 128 in the link 118.
  • Between joints G3 and G5 are formed a smaller distance than between the joints G2 and G4.
  • the knife 100 thus forms a coupling gear (see Fig. 13 ), which comprises the housing 111, the blade carrier 115 and the links 117 and 118.
  • a coupling gear see Fig. 13
  • the blade carrier 115 moves on one of the actuating lugs 112a or 112b, all parts of the linkage that are connected to movement are moved. Due to a relative movement between the actuating attachment 112a or 112b and the housing 111, the blade carrier 115 can be moved between the rear end position and the front end position.
  • the blade carrier 115 is guided on a coupling curve by means of the coupling gear, the blade carrier assuming a defined position at each point of the coupling curve. During the movement between the rear end position and the front end position, the blade carrier does not require any guidance on the first part 111. In the present exemplary embodiment, the blade carrier 115 is guided exclusively by the links 117 and 118. Support of the blade carrier 115 on the inner wall of the housing of the first part 111 is only possible in the case of elastic deformation of the links 117 and 118 due to a high load on the blade 116.
  • the coupling curve is designed in such a way that a straight line m2 through the joints G3 and G5 does not pivot by more than 45 degrees during the movement between the rear end position and the front end position. This feature ensures that the housing 112 is relatively narrow, so that the housing 112 can be easily held with one hand and that the blade 116, after it emerges from the opening 133, only performs a slight pivoting movement, thus increasing safety is achieved.
  • a spring 119 is supported with a spring end 140 on the housing 111 and with a spring end 141 on the handlebar 118.
  • the link 118 is loaded by the spring 119 in the direction v2, the entire coupling mechanism including the blade carrier 115 being loaded into the rear end position.
  • the mode of operation of the knife 100 will be described below.
  • the link 117 pivots about a pivot axis a2 in the direction w2 and the link 118 pivots about a pivot axis a4 in the direction v2 relative to the housing 111.
  • the blade carrier 115 pivots about the pivot axis a3 relative to the handlebar 117 and about the pivot axis a5 relative to the handlebar 118.
  • the blade carrier 115 and the blade 116 fastened therein are counter to the restoring force of the spring 119 along the Coupling cam moved into the cutting position.

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

Claims (12)

  1. Couteau avec une première partie (11) et avec une deuxième partie (12) qui est agencée de façon mobile par rapport à la première partie (11), ainsi qu'avec une unité de lame avec une lame (16) et avec un dispositif de réglage avec au moins deux articulations (17, 18) qui relient de façon articulée entre elles la lame (16) et la première partie (11) de sorte à former une transmission de couplage qui peut être déplacée, du fait d'un mouvement relatif entre la première partie (11) et la deuxième partie (12), entre au moins une position d'extrémité arrière et au moins une position d'extrémité avant, dans lequel la deuxième partie (12), pour déplacer la transmission de couplage directement ou indirectement, est reliée en mouvement avec une des articulations (18) ou avec l'unité de lame, et dans lequel l'unité de lame est maintenue par au moins un élément de rappel (19, 119) dans la position de sécurité, caractérisé en ce que la transmission de couplage forme un quadrilatère articulé.
  2. Couteau selon une des revendications précédentes, caractérisé en ce qu'au moins une paire d'articulations (17, 18) du quadrilatère articulé sont parallèles entre elles.
  3. Couteau selon une des revendications précédentes, caractérisé en ce qu'au moins une paire d'articulations (17, 18) du quadrilatère articulé ne sont pas parallèles entre elles.
  4. Couteau selon une des revendications précédentes, caractérisé en ce que les articulations (17, 18) de la transmission de couplage présentent des longueurs égales ou différentes.
  5. Couteau selon une des revendications précédentes, caractérisé en ce que chaque articulation (17, 18) de la transmission de couplage présente une seule direction de rotation lors du déplacement entre la position d'extrémité arrière et la position d'extrémité avant.
  6. Couteau selon une des revendications précédentes, caractérisé en ce que les articulations (17, 18) de la transmission de couplage présentent la même direction de rotation lors du déplacement entre la position d'extrémité arrière et la position d'extrémité avant.
  7. Couteau selon une des revendications précédentes, caractérisé en ce que la deuxième partie est constituée par un coulisseau qui peut se déplacer en translation par rapport à la première partie.
  8. Couteau selon une des revendications 1 à 6, caractérisé en ce que la deuxième partie (12) est constituée par un levier qui forme avec la première partie (11) une articulation rotative.
  9. Couteau selon une des revendications précédentes, caractérisé en ce que la première partie (11) et/ou la deuxième partie (12) forment un boîtier dans lequel la lame (16) est protégée, au moins dans la position de sécurité, contre tout contact.
  10. Couteau selon une des revendications 8 ou 9, caractérisé en ce qu'un élément d'appui (14) est relié de façon articulée avec une des articulations (18) ainsi qu'avec la deuxième partie (12) de telle sorte que l'unité de lame est déplacée, lors d'un mouvement relatif entre la première partie (11) et la deuxième partie (12), de la position arrière dans la position d'extrémité avant ou dans une position intermédiaire entre la position d'extrémité arrière et la position d'extrémité avant.
  11. Couteau selon une des revendications 8 à 10, caractérisé en ce que la première partie (11) peut pivoter, à partir d'une position de base, dans une première direction (u2) dans une position d'utilisation afin de placer l'unité de lame dans une position de coupe, et dans une deuxième direction (u1) dans une position d'ouverture afin de placer l'unité de lame dans une position de changement de lame.
  12. Couteau selon une des revendications précédentes, caractérisé en ce que l'unité de lame, lors du déplacement entre la position d'extrémité arrière et la position d'extrémité avant, n'effectue qu'un faible mouvement de rotation de α ≤ 45° ou de α ≤ 30° ou de α ≤ 10° ou de α ≤ 5°.
EP19020253.1A 2018-07-17 2019-04-03 Couteau Active EP3597379B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018117203.6A DE102018117203B4 (de) 2018-07-17 2018-07-17 Messer

Publications (2)

Publication Number Publication Date
EP3597379A1 EP3597379A1 (fr) 2020-01-22
EP3597379B1 true EP3597379B1 (fr) 2021-11-03

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EP19020253.1A Active EP3597379B1 (fr) 2018-07-17 2019-04-03 Couteau

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US (1) US11565432B2 (fr)
EP (1) EP3597379B1 (fr)
CN (1) CN110722606B (fr)
DE (1) DE102018117203B4 (fr)
ES (1) ES2901730T3 (fr)

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DE102013014684A1 (de) * 2013-09-05 2015-03-05 Martor Kg Messer
US11097434B2 (en) * 2017-12-21 2021-08-24 Mark Gordon Hooper Utility knife
DE102019001280A1 (de) * 2019-02-23 2020-08-27 Martor Kg Messer
US11084178B2 (en) * 2019-10-03 2021-08-10 Industro International Co., Ltd. Box cutter
US11254020B2 (en) * 2019-12-11 2022-02-22 Tsang Wing WONG Safety cutter

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US11565432B2 (en) 2023-01-31
CN110722606B (zh) 2021-12-31
EP3597379A1 (fr) 2020-01-22
DE102018117203A1 (de) 2020-01-23
DE102018117203B4 (de) 2024-02-01
CN110722606A (zh) 2020-01-24
ES2901730T3 (es) 2022-03-23
US20200023528A1 (en) 2020-01-23

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