• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cutting tool (1) with handle (12) and cutting means comprising an insertion slot (9) with a cutter (7) and a guide member (14) of discus-like shape formed by two opposite convex faces (15, 16) . The cutter (7) is arranged on one convex surface (15) which carries the material to be cut into the slot (9) for the cutter. The handle (2) of the tool extends substantially parallel to the plane (40) containing the at least one insert (6, 6 ', 7) to increase manual control of the tool by pulling or pushing.
    公开号:DK201570038A1
    申请号:DK201570038
    申请日:2015-01-21
    公开日:2015-07-27
    发明作者:Bernt Balle Ranfelt
    申请人:Bernt Ranfelt Aps；
    IPC主号:
    专利说明:

    Cutting Tool Field of the Invention
    The present invention relates to a cutting tool with a handle and with a cutting insert provided in an insertion slot in which material is cut when the tool is manually moved relative to the material so that the material is passed through the insertion slot. tool,
    BACKGROUND OF THE INVENTION The present invention has been made in connection with the branching of Christmas trees. That is, the process is done when a Christmas tree has been packaged in a net and after transport has to be unpacked. This unpacking or branching is done by cutting the net, which with an elastic force, holds the branches against the trunks of the tree.
    So far this has been done using scissors. Alternatively, there have also been attempts with knives of the type, such as hobby knives. However, disadvantages of both methods have been found. When using scissors, there is a risk that the scissors will stick to the tree's branches. Furthermore, there is a risk that the scissors will damage the branches of the tree as not only is the cutting of the net but also the risk of cutting branches. When using knives, there will also be a risk of damaging the tree and the user. Furthermore, the use of a knife can be difficult as the net is not kept tensioned with the same tension due to an irregular geometry in the tree. This means that in addition to the risk of damaging the tree with a knife, there is also the risk of simply 'pushing' the net with a knife.
    When transporting Christmas trees from forest to point of sale, it is common for the trees to be wrapped in nets. Therefore, in order to present the trees at the point of sale, it is necessary to make the Christmas trees tree-lined, so that the user has the opportunity to see and evaluate the individual trees. After a purchase, the tree will again be wrapped in a net for home transport to the user. With the user there will also be a need for extraction. In both situations of grouting, an effective tool is needed that addresses the disadvantages mentioned above. In the two use situations, the need can be defined as a need for a professional tool and the need for a do-it-yourself tool.
    In addition to Christmas tree extraction, cutting tools are also used in connection with other types of packaging of packaged products. Thus, there is also a need for tools where strips or the like must be removed from a packaged product and where one also wants protection from damaging the packaged product during cutting or clipping of strips or nets used for packaging product, In the prior art, various cutting tools exist in which the material to be cut is fed into a cutting slot in which there is a cutter. In this way, for example, fabric can be cut through without destroying the underlying material. Examples are described in patents FR2604650, GB369754, GB899488, US2764814, US3100935, US4198751, US6240645, US20090071Q12, US20110308093. None of the cutting tools in these writings is particularly suitable for cutting Christmas trees, as these cutting tools do not work much better than ordinary scissors and easily grasp the branches of the Christmas trees during cutting.
    Thus, it has been found that an improved tool is needed that can mitigate the risk of damage to the packaged product and at the same time ensure an efficient and close cutting of packaging, for example in the form of nets or ribbons. The design must also ensure that users cannot cut themselves on the knife.
    Improved cutting tools are also needed in the slaughterhouse sector, which on the one hand are effective in cutting animal skin and on the other minimize the risk of damage to the underlying tissue. In this case, too, the prior art tools described above do not seem advantageous.
    The object of the invention
    It is the object of the present invention to provide a cutting tool of the type mentioned in the introduction which alleviates these disadvantages. It is a specific purpose that the tool is simpler and has greater reliability than the known tools.
    Description of the Invention
    This is achieved according to the present invention with a cutting tool with a handle and cutting means as described below.
    The cutting means for cutting a material comprises an insertion slot with a cutter such that the material inserted into the insertion slot is cut by the insert. For example, the insertion slot is partially enclosed by the insert. Alternatively, the insert cooperates with a counter-insert or with a counter-attachment to the insert so that the material inserted into the insertion slot of the counter-insert is pressed against the insert. For example, two inserts are used which, by their cutting cooperation, are placed at a mutually pointed angle, which leads to cutting of the material from two sides as it is inserted into the feed slot.
    In addition, the cutting means comprises a guide means which, during the cutting process, guides the material into the feed slot. The guide means is provided with two opposite convex faces arranged on each side of a central plane through the guide member. The guide means will then have a disc-like shape formed by the two convex surfaces. By disco-like is meant a rather flat structure, for example oval structure. For such a flat structure, where length and width and thickness vary across the discus-like shape, the greatest width and greatest length is considerably greater than the greatest thickness of this discus, such as several times greater than the greatest thickness, e.g. two or three times the greatest thickness. Such a disco-like structure is formed with two convex surfaces which are evenly curved in the sense that they have no bounce or crack in the surface. The middle plane is perpendicular to the cutting plane so that a material, for example a net, is stretched during the cutting process on the convex surface and, while sliding on this convex surface, is led plane into the insertion slot and into the insert which is perpendicular to the material during the cutting process. the tool is moved relative to the material in a cutting direction.
    During the cutting process, where the tool moves in a cutting direction relative to the material, the guide means will be in front of the cutting. The median plane of the guide member is typically parallel to the cutting direction, although a small angle to the cutting direction is also possible, the convex surface in any case providing the material into the feed slot.
    The two convex faces need not be symmetrical around the center plane, but can be. The two convex surfaces which form the discus-like shape will generally not have a circular shape.
    The two convex faces are each bounded by a front curved edge as well as a rear edge which is optionally a curved edge or a straight edge. For example, the front curved edges are approximately semi-circular or semi-oval. Advantageously, if the trailing edge is curved, it is also semi-circular or semi-oval, at least the front curved edges are interconnected to form the discus-like flat structure.
    The cutter is disposed on one convex surface which carries the material to be cut into the insertion slot for the cutter. For example, in the upper side of a first of the convex surfaces, a recess is provided wherein the at least one insert is positioned so that it extends from the first convex surface, which at least one insert is oriented with its cutting edge oriented toward the guide member. front end. Thus, if the tool is oriented with the cutter above the guide member, the cutter extends over the convex surface. In addition, the tool is provided with a handle extending parallel or substantially parallel to the plane containing the at least one insert. This facilitates control of the tool in a pulling or pushing guide by hand. If the tool is oriented with the cutter above the guide member, the handle is positioned with an extension over the second convex surface. As used in the present application, '' front '' and '' rear 'will relate to the guide movement of the tool when used for cutting mesh or other sheet-shaped material using said at least one cutting insert. Thus, the front end of the guide means will be the point which is at the front during the cutting action. The term '' above 'or' 'above' is also used, which refers to the side where the cutter is 1 relative to the guide member when the middle plane of the guide member is horizontal. The term '' below 'then refers to the side of the guide member which is opposite the cut and thus on the opposite side of the middle plane.
    As the handle extends over the second convex surface and protrudes downward and out of the second convex surface, it is ensured that the handle will not caramelize with the product packaged when the package is cut. In this connection, it should be noted that the tool can not only be used for Christmas tree wrapping nets but can also find other uses, which include cutting ribbon, cardboard, paper, leather and textiles.
    It is further advantageous if the handle is also placed in a position above the first convex surface where the insert is placed. This provides a good balance in the tool. The handle may be positioned in the front, front or rear position of the at least one insert. It has been found advantageous in some cases that the handle is placed in a position substantially adjacent to at least one insert and thus in a position above the first convex surface.
    With such a tool, the convex faces of the guide member will provide product protection, and the sliding of the net over the convex surface will provide a secure insertion of a tightened mesh into the feed slot. The guide guide of the tool is inserted between product and packaging, such as between a tree and a net.
    The convexity of the first convex surface causes a web which is raised above the first surface to cause a tension of the web as it is displaced over the convex surface which has an increasing width. The curved front edge ensures that the tool does not stick to the meshes of the net.
    The convexity of the second surface provides protection for the packaged product. Furthermore, the convexity of the second surface will also prevent the tool from sticking to the product being packed and where the packaging is to be cut. This is particularly advantageous for trees that need to be netted out. In the case of a tree, due to the special curvilinear edge directed forward during use, there is no risk of the tool sticking to the branches. When mesh or tape is inserted over the curved front edge of the convex surface, a tightening occurs. When the net or band reaches the recess, which is typically located in a rear portion of the guide member, then the net or band will be inserted into the insertion gap between the cutter and the cutter / retainer or between two mutual cutters as the cutting egg extends over the first one. convex surface, that is, from the convex surface. Since the insert forms an acute angle, due to the tension of the mesh and the acute angle, a cutting will occur, without the risk that the mesh simply '' hangs' on the insert.
    The convex first surface will thus give rise to the tensioning of the net, and the cutting means will thus be placed in a position at the rear of the two convex surfaces. In some embodiments, at this rear portion there is a distance between the two convex surfaces which gives the guide member a certain height so that the handle may be positioned in a manner that it does not protrude below the guide member. Hereby, the insert alone may be protruding over the first convex surface, or the handle may be mounted such that it protrudes over the first convex surface in a position behind the insert. The cutter is oriented towards the front end of the guide member so that, when a guide movement of the tool, there will be a guide of the egg in the plane of the cutter and thus parallel to the length of the cutter. The handle of the tool is parallel to the plane of the cutter so that it also has an orientation parallel to the guide direction. In the case where the tool handle is at a rear end of the tool's convex surfaces, nets or the like will be cut into a position in front of the handle. Thus, there will also be no risk of nets, ribbons or the like sticking to the handle. Advantageously, the handle will be in a position not extending below the second convex surface facing the tree. Thus, no part of the tool handle will be at risk of interfering with branches or the like and preventing a free and unobstructed displacement of the tool. The handle of the tool will advantageously be positioned close to the cutters and the insertion slot in order to create the best balance in the tool and at least twist the user's wrist during the cutting operation. The height of the inlet opening in the feed slot will be determined for safety reasons so that no hand or finger gets into the feed slot. Therefore, the insertion slot will typically have a height at the entrance opening which is less than 18 mm. The tool according to the invention is suitable for use in unpacking packaged products, where packaging materials can be net, plastic, paper, cardboard, fabric, textiles, cords, ribbons, leather or other. The tool of the invention is also suitable for use in the slaughter of animals, preferably for use in cutting the animal's skin.
    According to a further embodiment, the tool according to the invention is characterized in that two inserts are retained at the mutual angle. Thus, inserts can be used where the cutting effect is achieved by the manual movement of the tool.
    According to a further embodiment, the tool according to the invention is characterized in that the two inserts are placed in a holder comprising a holder part and a handle part which act as the handle of the tool. Thus, these are inserts that can be replaced from the holder part, or alternatively, the holder part can be replaced when the inserts are worn. Thus, it is not necessary to discard the entire tool. Alternatively, the holder portion and the handle portion may also constitute a replaceable unit. This can be particularly advantageous in a structure in which the eggs are embedded in a workpiece constituting the handle portion and the holder portion.
    The holder for the blades can be replaced partly by loosening screws if the holder part is screwed to the handle part. Alternatively, the holder part can also be attached to the handle part by a so-called click action. An example of a click action is a holding of a workpiece by a chuck gripping behind an edge where either the chin or edge is provided flexibly displaceable laterally to the edge: typically the edge is pushed relative to the chin, resulting in a click sound, when these two interact, where the term click effect comes from. Thus, the holder part may be made of a plastic blank with embedded eggs which forms the insertion angle in the tool. In this way, a holder part for the inserts can be easily and easily replaced when the inserts are worn.
    According to a further embodiment, the tool according to the invention is characterized in that the two inserts are mutually movable. This provides greater security for cutting the web or band. The movement may be an inverted swing known from a pair of scissors, or a rotation.
    According to a further embodiment, the tool according to the invention is characterized in that one insert is rotatable relative to the other insert and that the insert is driven by an engine whose housing, for example, acts as the handle of the tool. This tool ensures efficient cutting and limits the guiding force that a user must use for the cutting. Therefore, this embodiment is particularly suitable for professional use, for example, where many Christmas trees have to be cut out.
    Alternatively, the handle may comprise a handle portion mounted above the housing of the motor, for example by means of two mounting pins. Placing the handle part above the housing provides a good balance in the tool. Thus, a twist in the user's hand can be reduced. The handle portion can be solid or hollow.
    According to a further embodiment, the tool according to the invention is characterized in that the rotating cutter has a polygonal shape and cooperates with a fixed rectilinear cutter. Hereby cutting can be effected by the fact that two rectilinear cutting parts cooperate and thus forming a pointed angle between these two cutting parts.
    According to a further embodiment, the tool according to the invention is characterized in that the convex surfaces have rounded corners between the front curved edges and the rear edges. This reduces the risk of the tool being stuck in the material to be cut or in the surrounding material.
    According to a further embodiment, the tool according to the invention is characterized in that the two convex surfaces have a greatest width between 20mm and 250mm, for example between 100mm and 250mm, and a maximum length between 30mm and 300mm, for example between 75 and 250mm, and a maximum height between the convex surfaces measured at the greatest distance between 1 On urs. and 50mm. It is a particularly advantageous size for tools to be used for Christmas tree trimming that the width is over 100 mm. If the tool is to be used for other packaging, it would be advantageous to have a narrower and shorter tool. In certain embodiments which are for other uses, for example in slaughterhouse shreds for cutting animal skins during slaughter, the convex surfaces have a width and length between 10 mm and 30 mm, for example between 10 mm and 20 mm. That is, the guide means is relatively small.
    According to a further embodiment, the tool according to the invention is characterized in that the handle does not extend below the second convex surface. This reduces the risk of sticking to the packaged product, as only the other convex surface of the tool will be in contact with the product.
    According to a further embodiment, the tool according to the invention is characterized in that the handle is positioned substantially or completely above the insertion slot. This provides a good balance so that wrists are twisted during the cutting operation. For example, the cutter is provided between the guide member and the handle.
    According to a further embodiment, the tool according to the invention is characterized in that it is provided with an additional knife means which is arranged without interaction with the cutting means. Such a knife means can be used to cut holes in the packaging, for example a net, after which the guide member can be placed in a position between the product and the packaging (the net). In the case where the tool is used for slaughter, the knife means can be used for the initial cutting. of the animal, for example at the abdomen, after which the cutting is used for further cutting of the skin without damaging the underlying parts of the animal. In particular, it is important that the intestines are not damaged during cutting of the animal by the abdomen. In some embodiments, the handle is elongated, and the additional knife means is an elongated knife blade in extension of the elongated handle. The knife blade is provided with a cutting edge and has a front end, for example with a tip, furthest from the handle and an opposite end attached to the handle. The guide means is provided on a side opposite to the cutting edge, for example at a blunt edge of the knife blade opposite the cutting edge. For example, the guide means is provided on a holder portion and a cutter is provided which extends at an acute angle from this side in an oblique direction away from the front end of the knife blade, for example at an oblique angle from the tip of the knife blade. For example, an insertion gap is thus formed between the guide member and the handle. If the tool has a rectilinear trailing edge, a recess at the center of the straight edges will extend only through the first convex surface. It is only necessary that the insert extends over the first convex surface and the second convex surface is advantageously unbroken, as this reduces the risk of sticking to the packaged product.
    Aspects The following describes aspects of the tool in short form.
    Aspect 1: Cutting tool, preferably for Christmas tree branching and of the type comprising a handle as well as a cutting means for cutting or cutting a mesh or band used to package a product, the cutting means comprising: - an insertion slot comprising: is enclosed by a curved insert or two inserts which, by their cutting action, are positioned at a mutually pointed angle, and - a guide member with two convex faces, each bounded by a curved edge and a generally rectilinear edge, curved edge is approximately semi-circular or semi-oval; the curved edges are interconnected so that at the center of the straight edges there is a recess where the inserts are arranged to extend over a first convex surface and with the inserts oriented substantially perpendicular to the right edges, and the tool handle extends substantially perpendicular to the right edges with an orientation away from the cow fresh surfaces.
    Aspect 2: Cutting tool, preferably for Christmas tree branching and of the type comprising a handle as well as a cutting means for cutting or cutting a mesh or band used to package a product, the cutting means comprising: - an insertion slot comprising: is enclosed by a cutter cooperating with a counter cutter or bracket or two cutters, which, by their cutting cooperation, are positioned at a mutually pointed angle, and - a guide member with two convex faces, each delimited by a front curved edge, and a trailing edge which is optionally a curvilinear or a rectilinear edge, the curvilinear edges being approximately semicircular or semi-oval; a recess in which the at least one insert is arranged such that it extends over the first convex surface, which is less one cutting insert is oriented with its cutting edge oriented toward the leading end of the guide member, and the tool handle extends substantially parallel to the at least one cutting insert and is spaced apart over the other convex surface.
    Aspect 3. Cutting tool according to aspect 1 or 2, wherein two inserts are retained at the mutual angle.
    Aspect 4. Cutting tool according to aspect 3, wherein the two inserts are located in a holder comprising a holder part and a handle part which act as the tool handle.
    Aspect 5. Cutting tool according to aspect 1 or 2, wherein the two inserts are mutually movable.
    Aspect 6. Cutting tool according to aspect 5, wherein one insert is rotatable relative to the other insert and that the insert is driven by a motor whose housing acts as the handle of the tool.
    Aspect 7. Cutting tool according to aspect 6, wherein the rotary cutting insert has a multilayered shape and cooperates with a fixed rectilinear cutting insert.
    Aspect 8. Cutting tool according to any of the preceding aspects, wherein the convex surfaces have rounded corners between the front curved edges and the rear edges.
    Aspect 9. Cutting tool according to any one of the preceding aspects, wherein the two convex faces have a greatest width between 20mm and 250mm, preferably between 100mm and 250mm, and a maximum length between 30mm and 300mm, preferably between 75 and 250 and that the maximum height between the convex surfaces measured at the greatest distance is between 10mm and 50mm.
    Aspect 10. Cutting tool according to any of the preceding aspects, wherein the handle is positioned substantially above the insertion slot.
    Aspect 11. Cutting tool according to any one of the preceding aspects, wherein it is provided with an additional knife means arranged without interaction with the cutting means.
    drawing Description
    The invention will then be explained in more detail with reference to the accompanying schematic drawing, wherein
    FIG. 1 shows a first embodiment of a tool according to the invention,
    FIG. 2 is a partial view of another embodiment of a tool according to the invention,
    FIG. 3 is a perspective view of a first embodiment of a guide member for use in the tool of the invention;
    FIG. 4 shows a view of another embodiment of a guide means for use in a tool according to the invention,
    FIG. 5-7 show pictures of further embodiments of a guide member for use in a tool according to the invention,
    FIG. 8 shows another embodiment of a tool according to the invention,
    FIG. 9 is a top view of a third embodiment of a guide member for use in a tool according to the invention,
    Figs. 10-13 show side views of further embodiments of inserts for use in a tool according to the invention,
    FIG. 14 is a schematic view of a further embodiment of a tool according to the invention,
    FIG. 15-18 show images of a further embodiment of a tool according to the invention,
    FIG. 19-21 show images of a further embodiment of a tool according to the invention, and
    FIG. 22 shows a sketch of a tool suitable for slaughter.
    DETAILED DESCRIPTION OF THE INVENTION In the various figures of the drawing, identical or similar elements will be designated by the same reference numerals. Therefore, no specific explanation will be given to each element in connection with each embodiment. 1, there is seen a cutting tool 1 comprising a handle 2 as well as a cutting means 3 for cutting mesh 4, which is used to package a Christmas tree 5 in such a way that the branches are held elastically serrated.
    The cutting member 3 comprises two cutters 6.7, which at its edge have a cutting egg 6 ", 7". Thus, an insertion slot 9 is formed with an insertion angle 8 between the two inserts 6.7, where the net or other material is introduced for cutting between the two inserts 6.7. The handle 2 comprises a holder part 10, where the inserts 6,7 are secured by means of screws 11. These screws 11 can be arranged so that the inserts 6.7 are interchangeable. Alternatively to the fastening by means of the screws 11, the holder part 10 can be mounted with means which, by clicking action, enters into corresponding holding means in the handle 2. Thus, a holder part in which the inserts 6,7 are embedded can simply be replaced by click action. An example of a click action is the retention of a workpiece by a chuck gripping behind an edge where either the chin or the edge is provided flexibly displaceable laterally to the edge. The handle 2 further comprises a handle portion 12 which allows the user to hold the tool. The handle portion 12 has an orientation according to the arrow 13 which is in a cutting direction, which is also the orientation of the cutters 6,7.
    The cutting member 3 further comprises a guide member 14. The guide member 14 comprises a first convex surface 15. As can be seen more clearly in FIG. 3, the first convex surface 15 has a recess 17. This serves to receive the inserts 6.7. As shown in FIG. 1, the surface 18 of the first convex surface 15 is positioned slightly higher than the upper side of the cutter 6. Hereby, the mesh 4 will move unobstructed into the insertion slot 9 as it slides over the convex first surface 15. Due to the convexity of the surface 15, a further stretch than that already occurring due to the network's compressive force around a tree. In this way, the net will be held very tight as it is inserted into the feed slot, thereby facilitating cutting. The guide means 14 has, as can be seen more clearly in FIG. 3, a curved front edge 19 and a generally rectilinear trailing edge 20, with the recess 17 located in the first convex surface 15. As seen from above, the guide member 14 will thus be approximately semicircular or shaped as part of an oval. This is particularly evident in FIG. 5-7 illustrating various possible waveforms for the guide member 14. In FIG. 2, a counter cut 21 is secured to a housing 22 by means of screws 23. Another cut is provided in the form of a rotating disc 24. The rotating disc interacts with the counter cut 21. The rotating disc 24 is multi-angled so that it has a series of rectangular inserts 25. Each of these inserts 25 together with the counter-cutter 21 will form a pointed angle 9 which ensures a cutting of the net not only at the acute angle but also at the rotation, so that the net is effectively cut by rotation of the knife 24 Activation is effected by means of a switch 27, which is located on the housing 22. The housing 22 contains motor and possibly batteries, in the case of a battery operated tool. The housing 22 thus acts as a handle for the tool. In FIG. 2, it is seen that the lower surface of the housing 22 can extend below the lower surface of the second convex surface 16. However, it is preferred that the lower surfaces are in the same plane as shown in FIG. First
    Fig. 4 shows an embodiment of the guide member which differs slightly from that of Figs. 3 as shown in FIG. 3, provided with rounded corners 26 at the transition between the curved edge 19 and the rectilinear edge 20. This ensures that there is no risk of a net sticking if it is necessary to retract the tool under brackets. Due to the curved front edge 19 of the tool, an insertion will automatically occur between the net 4 and the spruce tree 5. Because of the curve shape, the guide member 14 will ensure that the tool does not adhere to the net or the branches. At the same time, the convex shape will cause the net to be stretched out so that it is kept more secure in the cutting of the inserts.
    FIG. 5-7 illustrate various shapes of the guide member 14. Thus, Figures 5 and 7 show curvilinear edges 19. These are formed as part of an oval either at the tip end or at a long side. In FIG. 6 shows a waveform! edge 19, which has the shape of a semicircle.
    FIG. 8 shows an alternative embodiment of a cutting tool 1.1. This figure shows the cutting tool schematically. This figure serves to illustrate that the handle 2 may be located in a position immediately above the insertion slot 9. Furthermore, in this embodiment, a curved cutter 6 'extending in a soft arc is shown. The cut 6 'has a substantially parabola-like shape, partially enclosing the insertion slot 9. With this design, where the handle 2 is positioned over the insertion slot 9, less twist in the arm is obtained when the user uses the cutting tool 1.
    FIG. 9 shows a side view of a third embodiment. for the guide member 14. Unlike the one shown in FIG. 4, the rounds 26 connecting the curved front edge 19 to the rectilinear trailing edge 20 are retracted relative to the rectilinear edge 20. Thus, two rearwardly directed areas 26 'appear. These areas 26 'reduce the risk of tool attachment when retracted in connection with cutting a net. Rounding 26 with retracted edges 20 provides a form of '' protection '' which ensures that cut-off mesh parts located on each side of the tool are pushed out along the outside and will not stick, as opposed to the case where there is a more sharp transition between the rectilinear rear side 20 and the curved front edge 19.
    FIG. 10 shows a holder part 28 which, by means of holding means, for example click means (not shown), can be inserted, for example clicked, into a holder part in the handle part. In the holder part 28 two rectilinear eggs 6.7 are embedded, which. forming the insertion slot 9.
    FIG. 11 corresponds to FIG. 10, but here the holder portion 28 is provided with a curved egg 6 'which corresponds to that of FIG. 8 eggs. The egg 6 'partially encloses the insertion slot 9. The holder part 28 is also intended for attachment by holding means, for example by click action. 1 FIG. 12 and 13, the embodiments s are shown for Figs. 10 and 11. However, these embodiments are shown with eggs 6.7 and 6, respectively, having a substantially greater extent. In this way a longer egg can be obtained, with a cutting effect so that there is greater security for cutting the net. The length of the rectilinear eggs 6.7 in the feed slot and thus also on the two side portions of the curved egg 6 'may be from ea. 20 mm to approx. 70 mm. The distance at the entrance opening in the feed slot 9 will be determined for safety reasons, so that one does not get a hand into the feed slot. Therefore, the insertion slot 9 will typically have a height at the entrance opening which is less than 18 mm.
    FIG. 14 shows a tool 1 in which the handle part 12 is mounted above the housing 22 by means of two mounting pins 31. A positioning of the handle part 12 above the housing 22 provides a good balance in the tool. Thus, a twist in the user's hand can be reduced. Placement of a handle portion 12 which. shown in FIG. 14 can also be applied to the motorized embodiments shown in FIG. 1 and FIG. 2. In this embodiment, at the underside of the housing is mounted a knife 29 with a cutter 30 facing backward relative to the tool's use in cutting a net. The knife 29 is used to punch a net or other cut where it is not possible to establish a tension of the net over the guide member 14. This is particularly advantageous for being able to make a hole in a net in a situation where the net is constricted at the foot of a tree. Thereafter, the guide member 14 can be inserted into the hole and the cutting itself can begin. The cutter 30 faces backwards so that there is no risk of attachment during normal use of the cutting means 3.
    Figs. 15-18 show a view of a further tool 1 from different angles. 1 shows the tool according to FIG. 15-18, a recess 31 is provided in the first convex surface 15. The cutter 7 thus extends over the first convex surface 15, being positioned in the recess 31. At its upper side, the cutter 7 is connected to a holder 32 for handle 12. In this embodiment, the front curved edge 19 is seen with a transition in the form of striped corners 33 to a trailing edge 34. The trailing edge 34 is in this embodiment. shown curved. Alternatively, the rear edge 34 may be rectilinear. Furthermore, in FIG. 15 and 17, with the reference numeral 35 indicated the front end of the guide member 14. The point 35 thus represents the point which is the front during a cutting operation in which the tool is moved with the knife forward in the direction 13. In the embodiment shown in FIG. 15-18, there is provided a further knife means in the form of the knife 29. As mentioned above, the knife 29 will be used for hollowing in the power grid before cutting is started with the guide means 14 located between the product and the packaging.
    In this situation, the cutter 30 will also reverse when referring to the direction of direction of the normal cutting motion. Thereby, there is no risk of attachment during normal use of the cutting member 3.
    It is noted that the cutting directions for the knife 29 and for the cutting blade 7 are opposite.
    FIG. 19-21 illustrate a further embodiment of a cutting tool according to the invention. Here is shown a guide member 14 of substantially the same shape as illustrated in FIG. 15-18. That is, in this embodiment, the cutter 7 is also located in a recess in the first convex surface 15. The handle with the handle part 12 is located via a holder part 36 at the rear end of the guide member 14. The holder part 36 is placed upwards relative to the upper side. of the first convex surface 15. The handle portion 12 extends forwardly so that it is in a position above and in front of the cutter 7. The handle portion 12 extends further from the cutter 7 than the guide member 14, which facilitates the pulling motion upon cutting. Also in this embodiment, a single cutter 7 cooperates with a counterstop 31 provided at the underside of the handle portion 12. In this construction, the additional knife 29 is positioned above the cutting member 3 and the cutter 30 is directed forward in the same direction as the cutter 7.
    This tool will be used with a "pull" movement in the handle portion 12 in the direction of the guide direction 13, which also corresponds to the handle portion in the orientation of 2.
    The orientation of the handle portion 12 will in all embodiments correspond to the orientation of the arrow 13. The arrow 13 will also indicate the direction of movement of the tool in a normal cutting motion with the cutting member 3.
    It is preferred that any embodiment of the tool be provided with a knife 29 suitable for wrapping packaging, so as to form an initial cutting of the packaging.
    FIG. 22 shows a knife 39 intended for slaughter, comprising a handle 2 in extension of a knife blade 37, wherein the knife blade 37 is provided with a pointed front portion 38 and a cutting edge 37 'on one long side and a stub edge 37 "on the opposite long side of the knife blade 37. The knife blade 37 is suitable for touching the skin of an animal similar to the breaking done with the knife 29 in the above described embodiments. However, the knife blade 37 is also suitable for the other slaughter work. The handle 2 has a first end 2 'opposite the pointed front portion 38 and a second opposite end closer to the pointed front portion 38. On the side of the knife 39 opposite the cutting edge 37', there is provided a guide member 14 on a holder portion 36 'and a cutting insert 7 extending at an acute angle from this side towards the guide means 14 and in an oblique direction away from the pointed front portion 38. Thus, the handle 2 and cutting insert 7 form an insertion slot 9. which is open in the direction towards the first end 2 'of the handle 2, Also this tool will then be used with a' 'pulling' movement in the handle 2, i.e. in a direction with the first end 2 'of the handle 2 at the front below the movement,
    As shown in FIG. 22, a portion of the handle 2 extends beyond the blunt edge 37 "such that the distance Ira the handle 2 along the blunt edge 37" of the knife blade 37 to the pointed anterior portion 38 is coarser than the distance of the handle 2 to the pointed anterior portion. 38 along the cutting edge 37 ', for example at least 15% or at least 25% shorter than the cutting edge length 37'. However, there are also other options for providing the guide member 14 on the knife 39. For example, the guide member 14 may be attached to the blade blade 37 itself, for example secured to a holder portion 36 ', parts molded to the blade blade 37, to ensure that the holder portion 36' not slipping off the knife blade 37, the knife blade 37 may be provided with holes along the blunt edge 37 "through which the polymeric material of the holder portion 36 'is molded.
    Such a knife 39 is advantageous in the slaughterhouse, where the knife blade 37 is used to cut holes on an animal, especially the abdominal skin, and the guide member 14 is inserted under the abdominal skin to raise the abdominal skin by pulling the handle 2 and at the same time cutting it with the cutting 7. without risk of damage to the intestinal wall by the cutting during cutting.
    It is noted that the cutting edge 37 'of the blade blade 37' is opposite to the cutting direction 13 of the cutter 7 by the pull of the handle 2. The handle 2 extends further from the cutter 7 in the cutting direction 13 than the guide member 14, which makes the pulling motion at cutting easy and provides good control. over the tool upon use. In FIG. 22, the plane 40 of the cutter 7 is indicated as a dotted line 40, and the median plane of the guide member 14 is indicated as another dotted line 41, and it is noted that the two planes 40, 41 are perpendicular to each other.
    A typical greatest length and greatest width for guide member 14 is 10-30 mm, for example 10-20 mm. The greatest thickness is typically 3-5 mm. Also in this case the width and length are greater than the thickness, and advantageously greater than several times the thickness, for example at least twice the thickness.
    权利要求:
    Claims (12)
    [1]
    A cutting tool (1) comprising a handle (2) and a cutting means for cutting or cutting a material, the cutting means comprising: - an insertion slot (9) provided between a cutter (7) and a cooperating counter cutter (6) or retaining (31), or provided between two inserts (6 ') which, by their intersecting interaction, are positioned at a mutually pointed angle, as well as - a guide member (14) of di-shoe-like shape formed by two convex surfaces ( 15, 16) on each side of a center plane (41) through the guide means (14), the center plane (41) being perpendicular to the plane (40) containing the at least one insert (6, 6 ', 7); wherein the two convex faces (15, 16) are each bounded by a front curved edge (19, 35) as well as a rear edge (20, 34) which is optionally a curved edge (34) or a rectangular edge (20), the curvilinear edges (19, 34) being approximately semi-circular or semi-oval, at least the leading curvilinear edges (19) being interconnected where, in the upper face of a first (15) of the convex surfaces (15, 16) ) is provided with a recess (17) in which the at least one insert (6, 6 ', 7) is arranged so that it extends over the first convex surface (15), which at least one insert (6, 6', 7) ) is oriented with its cutting edge (6 ", 7") oriented towards the front end (35) of the guide member (14) and the handle (2) of the tool extending substantially parallel to the plane (40) containing the at least one cutting insert. (6, 6 ', 7) and is spaced apart over the second convex surface (16).
    [2]
    2, Cutting tool according to claim 1, wherein the handle (2) is positioned above the insertion slot (9).
    [3]
    A cutting tool according to any preceding claim, wherein the cutting edge of the at least one cutting (6, 6 ', 7) points in a cutting direction (13) and the handle (2) is provided in front of the cutting egg (6 ", 7") relative to this cutting direction (13) to facilitate use of the tool in a pulling motion.
    [4]
    The cutting tool according to claim 3, wherein the handle (2) extends further from the cutter (7) in the cutting direction (13) than the guide member (14).
    [5]
    A cutting tool according to any one of the preceding claims, wherein it is provided with a further knife means (29) arranged without interaction with the cutting means.
    [6]
    The cutting tool according to claim 5, wherein the handle (2) is elongated and the additional knife means (29) is an elongated knife blade (37) in extension of the elongated handle (2); wherein the blade (37) is defended with a cutting edge (37 ') and has a front end (38) furthest from the handle (2) and an opposite end attached to the handle (2); wherein the guide member (14) is provided on a side (37 ") opposite to the cutting edge (37 ').
    [7]
    A cutting tool according to claim 6, wherein the guide means (14) is provided on a holder part (36 ') and a cutting insert (7) extending at an acute angle from this side (37 ") in an inclined direction away from the front end (38) and forming an insertion gap (9) between the guide member (14) and the handle (2).
    [8]
    The cutting tool according to claim 6 or 7, wherein the two convex faces (15, 16) have a maximum width and length of between 10 and 30 mm.
    [9]
    A cutting tool according to any one of claims 1-5, wherein the two convex faces (15, 16) have a maximum width between 20 mm and 250 mm, a maximum length between 30 mm and 300 mm, and a maximum height between 10 mm and 50 mm measured at the greatest distance between the convex surfaces.
    [10]
    Cutting tool according to any of the preceding claims, wherein the convex surfaces (15, 16) have rounded corners (33) between the front curved edges (19) and the rear edges (20, 34).
    [11]
    A cutting tool according to any one of the preceding claims, wherein the guide means (14) has a maximum length and a maximum width which is several times the greatest thickness.
    [12]
    12, Use of a cutting tool according to any one of the preceding claims for the extraction of Christmas trees, the unpacking of packaged products or for the slaughter of animals.
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    同族专利:
    公开号 | 公开日
    EP2896488B1|2016-12-07|
    DK178514B1|2016-04-25|
    EP2896488A1|2015-07-22|
    US9821482B2|2017-11-21|
    US20150202784A1|2015-07-23|
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    法律状态:
    2020-08-14| PBP| Patent lapsed|Effective date: 20200121 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201470027|2014-01-21|
    DK201470027|2014-01-21|
    DK201470400|2014-06-27|
    DKPA201470400|2014-06-27|
    DKPA201570038A|DK178514B1|2014-01-21|2015-01-21|Cutting tool|
    DK201570038|2015-01-21|DKPA201570038A| DK178514B1|2014-01-21|2015-01-21|Cutting tool|
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