IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0542536
(2009-08-17)
|
등록번호 |
US-8458912
(2013-06-11)
|
우선권정보 |
FI-20085779 (2008-08-19) |
발명자
/ 주소 |
- Lindén, Olavi
- Paloheimo, Markus
|
출원인 / 주소 |
- Fiskars Brands Finland Oy AB
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
76 |
초록
▼
A cutting tool includes a first lever having a first end and a second end, the first end being connected to a second elongated element in an articulated manner at a third pivot point and the second end being arranged to engage with a tongue in a metal plate to transmit force from the second elongate
A cutting tool includes a first lever having a first end and a second end, the first end being connected to a second elongated element in an articulated manner at a third pivot point and the second end being arranged to engage with a tongue in a metal plate to transmit force from the second elongated element to a first blade in the metal plate so as to perform a cutting movement with a cutting jaw when the first and the second elongated elements are shifted towards one another. The cutting tool also comprises an engagement device provided in the tongue and arranged to receive the second end of the lever optionally at two or more engagement points with respect to the first pivot point so as to perform stepwise cutting movements. The engagement points are placed in the tongue successively away from the third pivot point.
대표청구항
▼
1. A cutting tool comprising: a metal plate comprising a first pivot point and a first blade extending forwardly from the first pivot point and a tongue extending backwardly;a first elongated element comprising a first handle and comprising at its distal end an anvil or a second blade that is arrang
1. A cutting tool comprising: a metal plate comprising a first pivot point and a first blade extending forwardly from the first pivot point and a tongue extending backwardly;a first elongated element comprising a first handle and comprising at its distal end an anvil or a second blade that is arranged to form with the first blade a cutting jaw, and a second pivot point, the first elongated element being connected in an articulated manner to the metal plate at the first pivot point;a second elongated element comprising a second handle and a third pivot point, the second elongated element being connected in an articulated manner to the first elongated element at the second pivot point;a first lever comprising a first end and a second end, the first end being connected in an articulated manner to the second elongated element at the third pivot point and the second end being arranged to engage with the tongue of the metal plate so as to transmit force from the second elongated element to the first blade for performing a cutting movement with the cutting jaw when the first and the second elongated elements are shifted towards one another;an engagement device provided in the tongue, the engagement device being arranged to receive the second end of the first lever optionally at two or more engagement points in relation to the first pivot point in order to perform stepwise cutting movements, wherein the engagement points are placed in the tongue successively away from the third pivot point; anda control device for engaging the second end of the first lever with the engagement point that corresponds to a diameter or thickness of an object to be cut with each cutting movement at a particular time, wherein the control device comprises a second lever having a first end and a second end, the first end of the second lever being connected to the first elongated element in an articulated manner at the second pivot point and the second end of the second lever being connected to the metal plate. 2. The cutting tool of claim 1, wherein the engagement points are placed in the tongue successively on the line that extends substantially in parallel with the first lever at the end of each cutting movement, or that extends substantially radially in relation to the third pivot point at the end of the cutting movement, or that extends transversely in relation to the line extending radially from the first pivot point towards the engagement points. 3. The cutting tool of claim 1, wherein the engagement points are placed in the tongue successively on the line forming an arc that curves around the first pivot point. 4. The cutting tool of claim 1, wherein the engagement points are placed in the tongue such that an angle between the line extending through the closest engagement point to and the furthest engagement point from the third pivot point and the line extending through the first pivot point and the engagement point closest to the third pivot point is at most approximately 125 degrees at the end of each cutting movement. 5. The cutting tool of claim 1, wherein the engagement points are placed in the tongue such that an angle between the line extending through two adjacent or successive engagement points and the line extending through the first pivot point and the engagement point closest to the third pivot point of the successive engagement points is at most approximately 125 degrees at the end of each cutting movement. 6. The cutting tool of claim 1, wherein the engagement points are provided such that they are substantially at the same distance from the first pivot point at the end of each cutting movement. 7. The cutting tool of claim 1, wherein the engagement points are notches which are arranged to receive optionally a first pin at the second end of the first lever so as to engage the lever with the metal plate and to transmit force from the second elongated element to the first blade. 8. The cutting tool of claim 1, wherein the engagement points are provided on the edge of the tongue in the metal plate. 9. The cutting tool of claim 1, wherein in the tongue of the metal plate there is provided an aperture, through which the first pin at the second end of the first lever is inserted and on the edge of which aperture there are provided the engagement points. 10. The cutting tool of claim 1, wherein the control device is arranged to control the position of the metal plate such that a first pin at the second end of the lever engages with the engagement point that corresponds to the diameter or thickness of the object to be cut with each cutting movement at a particular time. 11. The cutting tool of claim 1, wherein the control device comprises a second pin at the second end of a second lever and that the metal plate comprises an aperture through which the second pin is inserted for controlling the position of the metal plate. 12. The cutting tool of claim 1, wherein the cutting tool further comprises a spring for pretensioning the first and the second handles and the cutting jaw to an open position. 13. The cutting tool of claim 12, wherein in the open position pretensioned with the spring of the first and the second handles, the second end of the lever engages with the engagement point closest to the third pivot point. 14. The cutting tool of claim 12, wherein the spring comprises a spiral spring, which is connected between the first lever and the second lever, or between the first lever and the second elongated element, or between the first lever and the first elongated element. 15. The cutting tool of claim 1, wherein the cutting tool is arranged to operate such that when an object having a first thickness or diameter is being cut, the second end of the lever engages with the engagement point closest to the third pivot point so as to perform a cutting movement that cuts off completely the object to be cut. 16. The cutting tool of claim 1, wherein the cutting tool is arranged to operate such that when an object having a second thickness or diameter, which is larger than a first thickness or diameter, is being cut, the second end of the lever engages with the engagement point second closest to the third pivot point so as to perform a first stepwise cutting movement that cuts a first portion of the thickness or diameter of the object to be cut, whereafter in a subsequent cutting movement the second end of the lever engages with the engagement point closest to the third pivot point in order to perform a second stepwise cutting movement that cuts a second portion of the thickness or diameter of the object to be cut finalizing the cutting of the object to be cut. 17. The cutting tool of claim 1, wherein the cutting tool is arranged to operate such that when an object having a third thickness or diameter, which is larger than a second thickness or diameter, is being cut, the second end of the lever engages with the engagement point third closest to the third pivot point so as to perform a first stepwise cutting movement, which cuts a first portion of the thickness or diameter of the object to be cut, whereafter in a subsequent cutting movement the second end of the lever engages with the engagement point second closest to the third pivot point so as to perform a second stepwise cutting movement, and whereafter in a subsequent cutting movement the second end of the lever engages with the engagement point closest to the third pivot point so as to perform a third stepwise cutting movement which cuts a third portion of the thickness or diameter of the object to be cut finalizing the cutting of the object to be cut. 18. The cutting tool of claim 1, wherein the cutting tool is arranged to operate such that when an object is being cut, the second end of the lever engages with the engagement point whose distance from the third pivot point corresponds to the thickness of the object to be cut for performing a stepwise cutting movement, whereafter in a subsequent cutting movement the second end of the lever engages with the engagement point next closest to the third pivot point so as to perform a next stepwise cutting movement. 19. A cutting tool comprising: a metal plate comprising a first pivot point and a first cutting element extending forwardly from the first pivot point and a tongue extending backwardly;a first elongated element comprising a first handle and comprising at its distal end a second cutting element that is arranged to form with the first cutting element a cutting jaw, and a second pivot point, the first elongated element coupled to the metal plate at the first pivot point;a second elongated element comprising a second handle and a third pivot point, the second elongated element coupled to the first elongated element at the second pivot point; anda first lever comprising a first end and a second end, the first end being coupled to the second elongated element at the third pivot point and the second end being arranged to engage with the tongue of the metal plate so as to transmit force from the second elongated element to the first blade;a plurality of spaced engagement points provided in the tongue, the engagement points being arranged to receive the second end of the first lever in order to perform stepwise cutting movements; anda control device for engaging the second end of the first lever with the engagement point that corresponds to a diameter or thickness of an object to be cut with each cutting movement at a particular time, wherein the control device comprises a second lever having a first end and a second end, the first end of the second lever being connected to the first elongated element in an articulated manner at the second pivot point and the second end of the second lever being connected to the metal plate. 20. A cutting tool comprising: a metal plate comprising a first pivot point and a first blade extending forwardly from the first pivot point and a tongue extending backwardly;a first elongated element comprising a first handle and comprising at its distal end an anvil or a second blade that is arranged to form with the first blade a cutting jaw, and a second pivot point, the first elongated element being connected in an articulated manner to the metal plate at the first pivot point;a second elongated element comprising a second handle and a third pivot point, the second elongated element being connected in an articulated manner to the first elongated element at the second pivot point;a first lever comprising a first end and a second end, the first end being connected in an articulated manner to the second elongated element at the third pivot point and the second end being arranged to engage with the tongue of the metal plate so as to transmit force from the second elongated element to the first blade for performing a cutting movement with the cutting jaw when the first and the second elongated elements are shifted towards one another;an engagement device provided in the tongue, the engagement device being arranged to receive the second end of the first lever optionally at two or more engagement points in relation to the first pivot point in order to perform stepwise cutting movements, wherein the engagement points are placed in the tongue successively away from the third pivot point; anda control device for engaging the second end of the first lever with the engagement point that corresponds to the diameter or thickness of the object to be cut with each cutting movement at a particular time, wherein the control device comprises a second pin at the second end of a second lever and that the metal plate comprises an aperture through which the second pin is inserted for controlling the position of the metal plate; andwherein the aperture comprises a rear surface which is spiral in relation to the first pivot point and with which the second pin engages for controlling the metal plate as the cutting jaw opens, and/or the aperture comprises a front surface which is spiral in relation to the first pivot point and with which the second pin engages for controlling the metal plate as the cutting jaw closes.
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