CN100333880C - Utility knife blade securing device - Google Patents
Utility knife blade securing device Download PDFInfo
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- CN100333880C CN100333880C CNB031424902A CN03142490A CN100333880C CN 100333880 C CN100333880 C CN 100333880C CN B031424902 A CNB031424902 A CN B031424902A CN 03142490 A CN03142490 A CN 03142490A CN 100333880 C CN100333880 C CN 100333880C
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- locking mechanism
- cutting edge
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Abstract
A utility knife include a handle, a neck pivotally mounted on the handle, and a blade mounted in the neck. The neck can be folded into the handle to transport the utility knife. The blade is slidably removably inserted into and out of the handle without requiring disassembly of the handle. The blade is secured to the neck of the knife by a pivotally mounted arm.
Description
Related application
The United States serial that the application requires on February 7th, 2003 to submit to is No.10/360,243, the priority of the application of " multi-functional knife blade fixture (UTILITY KNIFE BLADE SECURING DEVICE) " by name.
Technical field
The present invention relates generally to a kind of multi-functional knife, more particularly, the present invention relates to the multi-functional knife that a kind of use has trapezoidal cutting tip.In addition, the invention still further relates to a blade is fixed on system and method in the multi-functional knife of the present invention.
Background technology
Traditional multi-functional knife is well-known, generally comprises about 6 inches long elongated handles, and blade is generally trapezoidal and is installed on the handle of a knife.When installing to a new blade on the handle of a knife, normally blade is pushed along a groove that is formed on the handle of a knife front portion, perhaps whole handle of a knife is taken apart so that near the blade maintaining body with various tool.In standard operation, blade moves between second use location outside handle of a knife at first stored position in handle of a knife and blade section usually.In order to make blade can move to a certain operating position, can slide along a groove in the handle of a knife at the protruding button of the side or the top of cutter (for example) on the handle of a knife and to pass.When protruding button is pushed into an end of groove, trapezoidal blade is in first stored position.When protruding button is pushed into the other end of groove, trapezoidal blade just is in second use location, when this position, cuts desired object with regard to the blade of available multi-functional knife.
After a shortcoming of tradition multi-functional knife was to use a period of time, protruding button can fluff, and blade can by mistake slide into its second use location from first stored position.When the user wished to hold the blade in a fixed position, this was quite dangerous, especially in the local time that multi-functional knife is placed in the carry-on pocket or children access.Another shortcoming of tradition multi-functional knife is that handle of a knife is oversize, and inconvenience is placed in the pocket and carries.The 3rd shortcoming is when a new blade is inserted multi-functional knife, whole handle of a knife will be taken apart usually.
Thereby wishing very much can provide a kind of improved multi-functional knife and be convenient to the method that this pocket knife was carried and used to safety.A further object of the invention provides a kind of improved apparatus and method, for using the multi-functional knife that comprises a trapezoidal blade.Another object of the present invention provides a kind of improved method and apparatus and fixes a trapezoidal blade in multi-functional knife or pull down from it.Another object of the present invention provides a kind of method and apparatus of improved use one multi-functional knife, can significantly reduce the danger that the multi-functional knife blade by mistake was free to slide and hurt the user.A further object of the invention provides a kind of multi-functional knife, and what it had an improvement is fixed on blade system and method in the tip holder.
Summary of the invention
The invention provides a kind of multi-functional knife, comprise:
(a) handle of a knife with one first end and one second end;
(b) neck with a terminal and near-end;
(c) blade of depositing on the described end is installed, described blade comprises:
(i) bottom,
(ii) relative and a separate top with described bottom,
A (iii) cutting edge that extends along described bottom, and
(d) described near-end is pivoted be connected to a fixture of described first end, so that described neck can move between the two positions,
(i) one first open expanded position, described cutting edge exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade in the described neck, and
(ii) one second operating position, described locking mechanism unclamps to allow described blade to shift out from described neck, and wherein, described locking mechanism also comprises a button, described locking mechanism is remained on described first operating position.
The present invention also provides a kind of multi-functional knife, comprises:
(a) handle of a knife with one first end and one second end;
(b) neck with a terminal and near-end;
(c) be installed in a blade on the described end, described blade comprises:
(i) bottom,
(ii) relative and a separate top with described bottom,
A (iii) cutting edge that extends along described bottom, and
(d) described near-end is pivoted be connected to a fixture of described first end, so that described neck can move between the two positions,
(i) one first open expanded position, described cutting edge exposes with usefulness cutting object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade in the described neck, and
(ii) one second operating position, described locking mechanism unclamps to allow described blade to shift out from described neck, wherein, described locking mechanism also comprises a lever arm, described lever arm has a hub switch side and an end, the end of described lever arm comprises a spring, and described spring applies power against the described end of described lever arm.
The present invention also provides a kind of multi-functional knife, comprises:
(a) handle of a knife with one first end and one second end;
(b) neck with a terminal and near-end;
(c) be installed in a blade on the described end, described blade comprises:
(i) bottom,
(ii) relative and a separate top with described bottom,
A (iii) cutting edge that extends along described bottom, and
(d) described near-end is pivoted be connected to a fixture of described first end, so that described neck can move between the two positions,
(i) one first open expanded position, described cutting edge exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade in the described neck, and
Unclamp allowing described blade to shift out from described neck (ii) one second operating position, described locking mechanism,
Wherein, described locking mechanism comprises a projection that stretches into the fixing hole in the described blade, and described projection described blade of restriction and described neck are thrown off.
The present invention also provides a kind of multi-functional knife, comprises:
(a) handle of a knife with one first end and one second end;
(b) neck with a terminal and near-end;
(c) be installed in a blade on the described end, described blade comprises:
(i) bottom,
(ii) relative and a separate top with described bottom,
A (iii) cutting edge that extends along described bottom, and described blade also comprises a fixing hole that passes described blade formation, the part of described cutting edge extends into the described end of described neck, and the part of described cutting edge stretches out from the described end of described neck
(d) described near-end is pivoted be connected to a fixture of described first end, so that described neck can move between the two positions,
(i) one first open expanded position, described cutting edge exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge is stored, and
(e) locking mechanism that when neck is in the unlatching expanded position, can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade in the described neck, and
(ii) one second operating position, described locking mechanism unclamps to allow described blade to shift out from the described portion of holding back.
The accompanying drawing summary
The present invention above-mentioned and other further and more specifically purpose and advantage by below in conjunction with accompanying drawing
Detailed description will be more readily apparent from, and label identical among the figure is represented components identical, and:
Fig. 1 is the stereogram of an exemplary multi-functional knife of constructed in accordance with the principles;
Fig. 2 is the upward view of the exemplary multi-functional knife of Fig. 1, shows the situation of cutter after neck is pivoted to closing position from the open position of Fig. 1;
Fig. 3 is the side view of the exemplary multi-functional knife of Fig. 2, and its further structure detail is shown;
Fig. 4 is the vertical view of the exemplary multi-functional knife of Fig. 1, shows cutter and is rotating situation after about 180 ° around X-axis;
Fig. 5 is the side view of the exemplary multi-functional knife of Fig. 4, shows additional CONSTRUCTED SPECIFICATION;
Fig. 6 is the duplicate of the figure of the exemplary multi-functional knife of Fig. 2, adds that dotted line further specifies CONSTRUCTED SPECIFICATION of the present invention;
Fig. 7 is the duplicate of the figure of the exemplary multi-functional knife of Fig. 3, adds that dotted line further specifies CONSTRUCTED SPECIFICATION of the present invention;
Fig. 8 is the front view of the exemplary trapezoidal blade of the used another kind of multi-functional knife of the present invention;
Fig. 9 is the front view of the exemplary trapezoidal blade of the used another kind of multi-functional knife of the present invention;
Figure 10 is the front view that a trapezoidal blade with a fresh cutting edge exemplarily inserts multi-functional knife of the present invention;
Figure 11 illustrates the front view that the present invention one replaces embodiment;
Figure 12 is the sectional view of the exemplary multi-functional knife of Figure 11;
Figure 13 is the side view that the multi-functional knife with an exemplary neck of constructing according to another embodiment of the present invention is shown;
Figure 14 is a side view, and the further exemplary configurations details of pocket knife of Figure 13 is shown;
Figure 14 A illustrates the stereogram that is used for a blade is fixed on an example fixation screw of Figure 14 multi-functional knife neck;
Figure 15 is the vertical view of Figure 13 and Figure 14 pocket knife neck, and its exemplary mode of operation is shown;
Figure 16 is the side view of Figure 15 pocket knife neck, and its further exemplary configurations details is shown;
Figure 17 is the vertical view of Figure 13 and 14 pocket knife neck, and its further exemplary operation mode is shown;
Figure 18 is the side view of Figure 17 pocket knife neck, and its exemplary operation mode is shown;
Figure 19 is the side view according to an exemplary multi-functional knife neck of another embodiment of the present invention structure;
Figure 20 is the side view of the exemplary multi-functional knife neck of Figure 19, and its mode of operation is shown;
Figure 21 is the side view of constructing an exemplary multi-functional knife neck according to further embodiment of this invention;
Figure 22 is the side view of the exemplary multi-functional knife neck of Figure 21, and its mode of operation is shown;
Figure 23 is the side view of the exemplary multi-functional knife neck of constructing according to yet another embodiment of the invention; And
Figure 24 is the side view of the exemplary multi-functional knife neck of Figure 23, and its exemplary mode of operation is shown.
The specific embodiment
In general, multi-functional knife comprises a handle of a knife with one first end, one second end and an elongate grooves; One has the neck of an end and a near-end; And one be installed in terminal trapezoidal blade.Blade comprises a bottom; One and the top that separates relative with the bottom; One cutting edge of stretching along the edge, bottom; And one pass the fixing hole that blade forms.Cutting edge has in half end that stretches into neck approximately, and second half then stretches out outwardly from neck finish approximately.Multi-functional knife also comprises and is used for the near-end pivot is connected to first end, so that neck can move between two operating positions, one first opens expanded position, and cutting edge exposes and can be used for cutting object at this moment, with one second closed folded position, this moment, cutting edge was arranged in groove.Multi-functional knife also comprises and passes neck and fixing hole blade is fixed on the device in the neck.
In another embodiment of the present invention, provide a kind of multi-functional knife.It comprises the handle of a knife with one first end, one second end and an elongate grooves; Neck with an end, a near-end and a hole; One is formed on the slit of neck finish; And one slidably insert the trapezoidal blade in described slit.Blade comprises a bottom; Relative with the bottom and a separate top; A cutting edge that extends along the bottom; And one pass the fixing hole that blade forms.Blade can move between two operating positions relative to described slit, and when one first operating position, blade can slide from the slit and shift out, when second operating position, blade slidably insert the slit and make fixing hole and neck in the hole align.Multi-functional knife also comprises and is used for the near-end pivot is connected to first end so that the device that neck can move between two operating positions, wherein, when first opened expanded position, cutting edge exposed and can be used for cutting object, and when one second closed folded position, cutting edge is arranged in groove.Multi-functional knife also comprises the hole that extends through neck and the device of fixing hole, blade is fixed in the neck when being in second insertion position at blade.
In another embodiment of the present invention, provide a kind of improved multi-functional knife.It comprises a handle of a knife with one first end, one second end and an elongate grooves; One neck that has an end, a near-end and be formed on the slit in the end; And one slidably insert the trapezoidal blade in described slit, and blade comprises a bottom, and the top, the cutting edge that along bottom extend that separate relative with the bottom and passes the fixing hole that blade forms.Blade can be moving between two operating positions in described slit, and when first operating position, blade can slide from the slit and shift out, and when second inserted the operating position, blade slidably inserted in the slit.This multi-functional knife also comprises the device that is used for the near-end pivot is connected to first end, so that neck can move between two operating positions: when first opens expanded position, expose cutting edge and can be used for cutting object, when second closed folded position, cutting edge is arranged in groove.This multi-functional knife also comprises the device that extends through fixing hole, in order to be in second at blade when inserting the operating position, described blade is fixed on neck.This multi-functional knife also comprises a groove that is formed in the neck, is used for blade is shifted out from the slit.
In another embodiment of the present invention, a kind of multi-functional knife is provided, it comprises the handle of a knife with one first end, one second end and an elongate grooves; Neck with an end and a near-end; And a trapezoidal blade that is installed on the end, blade comprises a bottom, and top, the cutting edge and that along bottom extend that separate relative with the bottom passes the fixing hole that blade forms.This multi-functional knife also comprises the device that is used for the near-end pivot is connected to first end, so that neck can move between two operating positions.When first opens expanded position, expose cutting edge and can be used for cutting object, when second closed folded position, cutting edge is arranged in groove.This multi-functional knife also comprises the fixture of passing neck and fixing hole, so that blade is fixed on neck.Though the shape and size of described blade, neck and fixture to satisfy when neck be during in first or second operating position, fixture is all in handle of a knife inside.
Also have among the embodiment in the present invention, a kind of improving one's methods of multi-functional knife of using is provided.Multi-functional knife comprises a handle of a knife, a neck and is installed in the trapezoidal blade in the handle of a knife.Described improving one's methods comprises the following step: neck is pivoted to be connected on the handle of a knife, so that neck can fold between an enable possition and a closing position; Neck is switched to closing position; Multi-functional knife is carried into the job site; And, neck is switched to an enable possition.
In another embodiment of the present invention, provide a kind of improved multi-functional knife.This pocket knife comprises the handle of a knife with one first end and one second end; One has the neck of an end and a near-end; An and trapezoidal blade that is installed on the end.Blade comprises a bottom; One and the top that separates relative with the bottom; And one along cutting limit that bottom at least a portion is extended.The part of blade extends into end, and another part then extends outwardly from the end of neck.This multi-functional knife also comprises the device that the near-end pivot is connected to first end, so that neck can move between the two positions, one first opens expanded position, exposes cutting edge for being used to cut an object, one second closed folded position, the contiguous handle of a knife of cutting edge.This pocket knife also comprises a fixture, in order to releasedly blade is fixed in the neck.
In another embodiment of the present invention, a kind of improved multi-functional knife is provided, it comprises the handle of a knife with one first end and one second end; One has the neck of an end, a near-end and a longitudinal axis; One is formed on the slit of neck finish; And one insert the trapezoidal blade in this slit slidably.Blade comprises a bottom, and the top and at least one the cutting edge on bottom at least a portion that separate relative with the bottom.Blade can move between the two positions relative to the slit; In primary importance, blade can slide from the slit and shift out; In second insertion position, the part of blade is inserted the slit slidably, and blade is basically parallel to the longitudinal axis.This pocket knife also comprises the device that near-end is connected to first end; And the device that releasedly blade is fixed on the second place in the slit.
In another embodiment of the present invention, improved multi-functional knife is provided, it comprises the handle of a knife with one first end and one second end; Neck with an end, a near-end, a top and a bottom; And be installed in trapezoidal blade on the end.Blade comprises a bottom; One and the top that separates relative with the bottom; And at least one cutting edge that extends along bottom at least a portion.The part of blade extends into the end of neck, and blade another part extends outwardly from neck finish.This multi-functional knife also comprises the device that the near-end pivot is connected to first end, so that neck can move between the two positions, one first opens expanded position, exposes cutting edge and can be used for cutting object, and one second closed folded position, the contiguous handle of a knife of cutting edge.This multi-functional knife also comprises one blade is fixed on fixture in the neck releasedly; And on the bottom, point block piece near one of blade.
In another embodiment of the present invention, a kind of improved multi-functional knife is provided, it comprises the handle of a knife with one first end, one second end and a clip; Neck with an end and a near-end; An and trapezoidal blade that is installed on the end.Blade comprises a bottom; One and the top that separates relative with the bottom; And at least one cutting edge that extends along bottom at least a portion.The part of blade extends into the end of neck, and another one then extends outwardly from this end.This multi-functional knife also comprises the device that the near-end pivot is connected to first end, so that neck can move between the two positions; One first opens expanded position, exposes cutting edge and can be used for cutting object; And one second closed folded position, the contiguous handle of a knife of cutting edge.This multi-functional knife also comprises the fixture that blade is fixed on releasedly neck.
In another embodiment of the present invention, provide improving one's methods of a kind of cutting one object.The step that a multi-functional knife is provided that this method comprises, this multi-functional knife comprise the handle of a knife with one first end and one second end; Neck with an end and a near-end; An and trapezoidal blade that is installed on the end.Cutter comprises a bottom; One and the top that separates relative with the bottom; One cutting edge that extends along at least a portion of bottom; And the device that is used for the near-end pivot of neck is connected to handle of a knife first end, so that neck can move between the two positions, one first opens expanded position, exposes cutting edge and can be used for cutting object; And one second closed folded position, the contiguous handle of a knife of cutting edge.Neck is in the second place.This pocket knife also comprises the device that blade is fixed on releasedly neck.This method also comprises and neck is moved to first opens expanded position; And with the step of the cutting edge cutting material of trapezoidal blade.
In an embodiment more of the present invention, provide a kind of improved method of cutting the fresh cutting edge of object that is used to obtain.This method comprises the step that a multi-functional knife is provided.This multi-functional knife comprises the handle of a knife with one first end and one second end; One has an end, a near-end, and the neck of a longitudinal axis; One slit in neck finish formation; And one insert the trapezoidal blade in this slit slidably.Blade comprises a bottom; One and the top that separates relative with the bottom; And at least one cutting edge of using on the bottom.Blade can move between the two positions relative to this slit, in primary importance, blade can slide from the slit along the direction that is basically parallel to longitudinal axis and shift out, and in second insertion position, the part of blade can be slided along the direction of substantially parallel longitudinal axis and be inserted in the slit, and blade is basically parallel to longitudinal axis.This multi-functional knife also comprises the device that near-end is connected to first end, so that neck can move between the two positions, one first opens expanded position, and expose cutting edge and can be used for cutting an object, and one second closed folded position, the contiguous handle of a knife of cutting edge; And a fixture that is used for blade is fixed on movably the slit second place, when neck during in the second place this fixture in the handle of a knife outside.This method also is included in neck and is in during second closed folded position, operates this fixture and discharge blade so that the step that blade can slide and shift out from the slit; The step of blade being slided and shifting out from the slit along the direction that is basically parallel to longitudinal axis; And the step that will have the blade slip insertion slit of a fresh cutting edge along the direction that is basically parallel to longitudinal axis.
In another embodiment of the present invention, provide an improved multi-functional knife.It comprises the handle of a knife with one first end and one second end; One has the neck of an end and a near-end; An and trapezoidal blade that is installed on the end.Blade comprises a bottom, and the top that separate relative with the bottom; And at least one cutting edge that extends along bottom at least a portion.The part of blade extends into end, and another part of blade is not held from neck and stretched out.This multi-functional knife also comprises the device that is used for the near-end pivot is connected to first end, so that neck can move between two operating positions; One first opens the exhibition position puts and exposes cutting edge and can be used for cutting object; And one second closed folded position, cutting edge is arranged in groove.This multi-functional knife also comprises blade is fixed on fixture in the neck releasedly; And a spring, the removable part of neck that is support on of spring is to remain in neck first enable possition when neck is in first enable possition.
In another embodiment of the present invention, a kind of improved multi-functional knife is provided, it comprises the handle of a knife with one first end and one second end; One has the neck of an end and a near-end; And be installed in trapezoidal blade on the end.Blade comprises a bottom; One and the top that separates relative with the bottom; One cutting edge that extends along the bottom; And one pass the fixing hole that blade forms.The part of cutting edge extends into end, and a part extends outwardly from neck finish.This pocket knife also comprises the fixture that the near-end pivot is connected to first end, so that neck can move between the two positions, one first opens expanded position, and expose cutting edge and can be used for cutting object, and one second closed folded position, cutting edge is stored; An and locking mechanism, can between at least two operating positions, move, one first operating position, the part of locking mechanism extends into fixing hole blade is fixed in neck, and one second operating position, locking mechanism is thrown off from fixing hole can shift out blade from neck.
Another embodiment of the present invention provides a kind of improved multi-functional knife, and it comprises the handle of a knife with one first end and one second end; Neck with an end and a near-end and the cutting edge between near-end and end; And be installed in a trapezoidal blade on the end.Blade comprises a bottom; One and the top that is separated by relative with the bottom; One cutting edge that extends along the bottom; An and fixing hole that passes blade formation.The part of cutting edge extends into end, and a part stretches out from neck finish.This pocket knife also comprises near-end pivoted and is connected to a fixture of first end, thereby neck is moved between the two positions; One first opens expanded position, exposes cutting edge, can be used for cutting object; And one second closed folded position, cutting edge is stored; And comprise a locking mechanism that is used for blade is fixed on neck.
Now please referring to accompanying drawing, accompanying drawing has been described some exemplary embodiments that is now of the present invention, in order to practical application of the present invention to be described, rather than limits the scope of the invention, so in the accompanying drawing, identical label is represented corresponding element.Fig. 1 to 7 illustrates a multi-functional knife, and it comprises a handle of a knife 10 and neck 11.Handle of a knife 10 comprises first end 50, second end 51 and groove 54.Neck 11 comprises end 52, near-end 53, pointed edge or front 38 and top 29.Neck 11 is passed in hole 15.Article two, separate each other and relative slit 14 (Fig. 1) and 30 (Fig. 5) can be used for assisting that the moving direction along arrow Z shifts out from neck 11 with blade 12.Blade 12 comprises front 28 and back 62.Neck 11 has a slit 39, and its shape and size are admitted trapezoidal blade 12 slidably, aligns so that a fixing hole 31 that forms in the blade 12 can be moved to hole 15.When hole 15 and 31 alignment, bolt/nut 18 is passed hole 15 and 31, blade 12 removably is fixed in the slit 39, thereby also is fixed in the neck 11.Slit 39 limits boundary in a side by limit 40 (Fig. 1), is then limited by limit 41 (Fig. 5) at opposite side.The fixture of an available pin or other hope replaces bolt/nut 18.As an example rather than restriction, if blade 12 about 0.038 inch wide, then the width in slit 39 is from 0.039 to 0.048 inch usually.
The near-end 53 of neck 11 can be pivotally connected to first end 50 of handle 10 by pin apparatuses 16, perhaps also can connect by any other desirable fixture, as long as can allow neck 11 relative handles 10 pivots.The axis that is vertically oriented extends through pin apparatuses 16.
Handle of a knife 10 comprises sidepiece 20 and 21, and sidepiece 20 comprises top 35, and sidepiece 21 comprises top 36.Clip 17 (Fig. 2 and 3) is linked sidepiece 21.Clip 17 make multi-functional knife of the present invention can be fixed on the shirt pocket, on the belt or the like.Sidepiece 20 is in the same place by a plurality of bolting with 21, and each bolt is all attacked female hollow support shelves by a hole in sidepiece 20 or 21 and screw-in.For example in Fig. 1 to 3, have externally threaded bolt 26 and screw in the support shelves 25 hollow, that have internal thread.
In use, neck 11 usefulness pin apparatuses 16 pivot and are connected on the handle of a knife 10, and bolt/nut 18 is removed from hole 15.Trapezoidal blade 12 slided along the moving direction of arrow Y among Fig. 1 inserts in the slit 39, until hole 15 with till aliging in hole 31.Slit 39 is best with the shape and size of blade 12, but not necessarily, is when blade 12 is arranged in slit 39, aligns with hole 31 in hole 15.Bolt/nut 18 is inserted by the hole 15 and 31 of alignment, and blade 12 removably is fixed in slit 39 and the neck 11.Neck 11 is pivoted to the folding position shown in Fig. 2,3,6,7 along the moving direction of arrow A.In the folding position, sword 13 is contained in the groove 54.Groove 54 extends between the sidepiece 20 and 21 of handle of a knife 10.The function of spring 60 is the same with spring function in traditional pocket knife, is used for neck 11 is remained on unlatching or the use location shown in the folding position shown in Fig. 2 and 3 or Fig. 1,4 and 5.
Be in the folding position of Fig. 2 at multi-functional knife after, it is carried to a desired place, that part from handle of a knife 10 outward extending necks 11 in the Fig. 3 of this place is caught by two fingers of hand, and is pulled outwardly along the moving direction of arrow B, and moves enable possition shown in Figure 1 to.Catch handle of a knife 10 to handle multi-functional knife then, with the desired object of sword 13 cuttings.In the time will removing blade 12, earlier bolt/nut assemblies 18 is unloaded, then the front end of screwdriver or other object are inserted slit 14 and 30 and prop up the limit 62 (Fig. 5) of blade 12.The front end of screwdriver pushes away or draws along slit 14 and 30 by the moving direction of arrow C, so that blade 12 is ejected slit 39.Then, a new blade 12 is inserted slit 39 by previous said method; Perhaps, old blade is changeed 180 °, expose sword 13 unworn parts and insert slit 39 again.When neck 11 was in the closing position of Fig. 3, it is inner or outside that assembly 18 can be arranged on groove 54.
Fig. 8 shows another kind and can be used for trapezoidal blade 12A in the present invention practice, and it comprises bottom 27A and cutting edge 13A and 67.Hook-shaped cutting edge 67 extends along the part of bottom 27A, and straight cutting edge 13A extends along the part of bottom 27A.
Fig. 9 shows another the trapezoidal blade 12B that can be used for the present invention's practice, and it comprises bottom 27B and cutting edge 68 and 69.Hook-type cutting edge 68 extends along the part of bottom 27B, and hook-type cutting edge 69 extends along the part of bottom 27B.The trapezoidal shape that should be understood that, blade 12,12A, 12B can change on demand, as long as the cutting edge that blade can provide at least one to use by the mode shown in Fig. 1 to 10.For example, if among the blade 12A in Fig. 8 the right-hand gable of dotted line 70 cut, it is trapezoidal that the remainder of blade 12A still is.Perhaps, if among blade 1 2A in Fig. 8 the right-hand gable of dotted line 71 cut, it is trapezoidal that the remainder of blade 12 still is considered to.
Figure 10 illustrates blade 12 and how to remove from multi-functional knife of the present invention and how to insert wherein.When multi-functional knife is in orientation among Fig. 3, can unload bolt 18 with square hole spanner, vice or user's finger.This point is particularly advantageous, because bolt 18 is positioned at outside the handle of a knife 10, thereby will neck 11 move to the enable possition that cutting edge 13 is come out and it can be unloaded.Bolt 18 passes hole 15 and the 15A in the neck 11, and passes the hole 31 (Fig. 5) in the blade 12.In case remove bolt 18, to catch blade 12 and draw outwardly along the moving direction of arrow F indication, the moving direction of arrow F is parallel to the longitudinal axis L (Fig. 4,5) of neck 11., blade 12 to be taken out usually during impaired or cutting edge 13 rusts when blade 12.
Before can taking out blade, by mode shown in Figure 10 neck 11 is opened slightly, so that slot milling supplies blade 12 is freely pulled out from neck 11, and do not make blade 12 touch handle of a knife 10.It is by neck 11 is realized from the angle of the pivot of the closing position shown in Fig. 2,3,6,7 less than 90 ° that neck 11 is opened slightly.
Can buy replacement blade with fresh cutting edge.Obtain fresh cutting edge and can buy brand-new blade, perhaps, having only half at the cutting edge 13 of blade 12 is under the situation about using, and blade 12 is rotated 180 °, so that not the using partly of sword 13 that is contained in the neck 11 when the expose portion of the sword 13 that uses blade 12 come out.
One when obtaining the replacement blade with fresh cutting edge 13, just it can be slipped in the slit 39 along the moving direction shown in the arrow G, before blade 12 is removed by blade 12 position occupied.The moving direction of arrow G indication is basically parallel to the longitudinal axis L of neck 11.If the angle between axis L and the moving direction is 10 ° or littler, we can say that then moving direction is basically parallel to longitudinal axis L.
Example hereto supposes that the shape and size of replacing sheet equal blade 12.Yet replacing blade also can be some other trapezoidal blade, for example blade among Fig. 8 and 9.
Slide when inserting neck 11 and arriving position shown in Figure 10 replacing blade, bolt 18 is installed by hole 15,15A and by the hole 31 of replacing blade, be fixed on the neck 11 will replace blade releasedly.
The program of blade 12 is safe especially in the above-mentioned replacing neck 11, because during blade 12 is released and pulls out slidably from neck 11, and cutting edge 13 or be contained in the handle of a knife 10, or be closed in the handle of a knife 10 (as shown in figure 10).
In Fig. 1 to 7 and Figure 10, when blade 12 was installed on the neck 11, the part of blade 12 in slit 39 surrounded in both sides by neck 11 fully.Yet, if desired, also blade 12 can be contained on the neck 11 like this, blade 12 is not exclusively surrounded by neck 11 in both sides.For example, in Figure 11 and 12, neck 11A is arranged to make blade 12 only to be surrounded by neck 11A in a side.In neck 11A, form an opening or slit 73, a side of blade 12 or one side 74 are exposed fully.Opening 73 comprises limit 72,70 and 71, and they surround that part of of the blade 12 that is installed on the neck 11A and contact with it.Though blade 12 can be slipped into opening 73, but also blade 12 1 ends can be alignd with opening 73, that end with blade 12 puts down or pushes opening 73 simply then, releasedly blade 12 is fixed on the neck 11A with a bolt or other device afterwards, thereby blade 12 is installed on the neck 11A.
Be formed with a finger block piece 66 in neck 11 bottoms near cutting edge 13 and blade 12 places, the forefinger that it helps to prevent the user slides into cutting edge 13 along the bottom of neck 11 and gets on.
As long as the present invention also comprises minimum instrument or do not need instrument and blade 12 removably or for good and all is fixed to a kind of system and method in the neck.This system and method that is used for fixing blade can comprise neck is shifted out in any suitable setting with restriction blade 12 part.One embodiment of the present of invention are shown in Figure 13 to 18 and comprise neck 11A and handle of a knife 10A.Blade 12 is slipped into and skids off the identical mode of neck 11 blade 12 is slipped into and skid off neck 11A with described above.Neck 11A comprises a slit similar to slit 39 in the neck 11, and its shape and size are slidably accepted trapezoidal blade 12.Figure 13 to 18 illustrates blade 12 and inserts behind the neck 11A therein position.
The bottom of neck 11A is provided with zigzag cutting edge 78.The cutting edge that also can form straight cutting edge or any other desired shape and size in neck 11A bottom replaces jagged cutting edge 78.Sword 78 can use separately, also can be used with the sword 13 that is inserted in blade 12A among the neck 11A.
Blade 12 is fixed among the neck 11A by lever arm 84.At Figure 14, in 17,18, arm 84 is in the close position, and projection 86 stretches into fixing hole 31 and skids off from neck 11A along the direction of arrow N (Figure 16) to prevent blade.Arm 84 remains on Figure 14,17,18 closing position by cylindrical button 80.Button 80 can direction shown in the arrow H rotate in steady pin 81 upper edge Figure 15.Pass button 80 and be formed with a groove 89, as hereinafter introducing, the shape and size of groove 89 allow the end of arm 84 by groove 89.Arm 84 is pivotally fixed in neck 11A by pin 85.Spring part 87 is in order to the top margin 19 of ejection blade 12, and in order to produce one along the move up active force of arm 84 of arrow J.For arm 84 is moved to the enable possition shown in Figure 15 and 16, button 80 can be rotated to the position shown in Figure 15 and 16 from the position shown in Figure 14,17,18.In Figure 15 and 16, groove 89 has moved to the end 88 of arm 84 and has aimed at, thereby spring part 87 upwards moves to the position shown in Figure 15 and 16 with the end 88 of arm 84 by groove 89.When arm 84 was in position shown in Figure 15 and 16, projection 86 moved to the outer position of breach 31, thereby projection 86 no longer is fixed on blade 12 among the neck 11A.If desired, the direction of blade 12 along arrow N can be shifted out from neck 11A slip.
Can connect a small embossment or handle 139 (Figure 16) on arm 84, the user can catch handle 139 and upwards draw along the direction of arrow J, and arm 84 is pulled out neck 11A along the direction of arrow J.Similarly, also can pass neck 11A and form a U-shaped opening 82 (Figure 14) so that the user catches the part of arm 84 and along the direction of the arrow J lifting arm 84 that makes progress,---just look like catch the part of pocket knife blade tip to draw outwardly to open pocket knife such.
Among Figure 16, just can make it to get back to the position shown in Figure 13,14,17,18 along be directed downwards by pressure arm 84 opposite with direction shown in the arrow J.When arm 84 presses to position shown in Figure 13,14,17,18, by direction ratchet knob 80 groove 89 is staggered with terminal 88 along arrow H, so that end 88 upwards compresses the bottom of button 80 and can not move along the direction of arrow J, just arm 84 can be remained on this position.
Embodiments of the invention shown in Figure 13 to 18 have adopted one can discharge the pivotal arm 84 that moves between the operating position (Figure 16) in one first locking operating position (Figure 14) and one second.And shown in Figure 19 to 24, other embodiment of the present invention that will describe have also used some to lock a relieving mechanism, can discharge between the operating position in one first locking operating position and one second and move.Also can use a kind of or sell 151 (Figure 23), between (1) one first latched position and (2) one second off-positions, slide simply in the opening 150 that it can form in neck 11A (rather than pivot), wherein, in (1) first latched position, the breach 31A of the part of travelling arm and blade 12 or another part cooperate blade 12 are locked in position among the neck 11A; And in (2) second off-positions, arm does not cooperate with breach 31A and locks blade 12 not on the throne.
Embodiments of the invention shown in Figure 19 and 20 comprise moveable arm 90 and 95 and spring 92.Arm 90 pivots on steady pin 93, and pin 93 is fixedly connected on neck 11.The end 97 of arm 95 pivots around steady pin 98.Pin 98 stretches in the groove 94.Groove 94 extends through arm 95.Figure 19 illustrates arm 90 and 95 and is in closed locked position.Among Figure 19, along the direction torque arm 95 of arrow R, so that nose 96 wedges that increase support the top margin 19 of inclined-plane 99 and blade 12.When end 96 wedges supported inclined-plane 99 and top margin 19, end 96 just stoped blade 12 to move.92 on spring resists moving part 100 and assists arm 90 is remained on position shown in Figure 19.
Figure 20 be illustrated in arm 90 along the direction of arrow K move, correspondingly arm 90 and 95 latched positions from closure move to the arm 90 and 95 after the off-position of unlatching.When move and during around pin 93 pivotal arms 90, arm 95 moves along the direction of arrow N, discharges blade 12 along the direction (Figure 19) of arrow K arm 90 ends 91, so that blade 12 can be when needed shifted out from neck 11A along the direction of arrow N.When arm 90 was in closing position shown in Figure 19, arm 90 was arranged in groove 106.
Embodiments of the invention comprise moveable arm 102 shown in Figure 21 and 22.The protruding near-end 105 of arm 102 can pivot around pin 103, and pin 103 is fixedly mounted among the neck 11A.Arm 102 is arranged in slit 104.Figure 21 illustrates arm 102 and is in closed locked position, and in Figure 21, protruding end 105 stretches into breach 31 and stops blade 12 to move.
Figure 22 illustrates the situation after arm 102 moves up along the direction of arrow P.Among Figure 22, protruding end 105 shifts out from breach 31, thereby blade 12 can shift out from neck 11A slip along the direction of arrow N.
Embodiments of the invention shown in Figure 23 and 24 comprise moveable arm 133 and 134 and spring 137.The end of arm 133 is fixedly connected on a pin 142, and pin 142 can slide in the groove 136 that passes arm 134 formation and pivot.The near-end of arm 133 is fixedly connected on a pin 132, and pin 132 can slide in breach 31 and groove 141 and pivot.Groove 141 is formed among the neck 11A, and when the position shown in the blade 12 insertion neck 11A to Figure 23 and 24, groove 141 aligns with breach 31.Arm 134 pivots on pin 138, and pin 138 is fixed in and is connected in end 11A.
When arm 133 and 134 was in closed locked position shown in Figure 23, pin 132 cooperated with breach 31, and prevention blade 12 shifts out from neck 11A slip along the direction of arrow N.When arm 134 was in closing position shown in Figure 23, spring 137 compressed the protruding finger 135 of arm 134, and produces the power along the direction transfer arm 134 of arrow Q.The power deficiency that spring 137 produces is so that arm 134 leaves the position of arm 134 among Figure 23.But spring 134 has made things convenient for the direction hand transfer arm 134 along arrow Q.
In Figure 13 to 24, each all moves arm 84,90,95,102,133,134,151 in the plane of the sidepiece of the blade in being parallel to neck 11A 12 or side 74.Arm 84,90,95,102,133,134,151 each be preferably all be parallel to side 74 or opposite flank 74 tilt at 45 or littler, be preferably in 20 ° or the plane littler, preferably 10 ° or littler angle and move.
Each all can match arm 84,90,95,102,133,134,151 with breach 31, a 31A being formed on blade 12 tops or be convenient to this cooperation.The breach that is cooperated by described arm can be formed in the part of blade 12 if necessary.
Each is installed in arm 84,90,95,102,133,134,151 among the neck 11A.Also can adopt a kind of arm-push and pull system, wherein, the part of system is included among the handle of a knife 10A, but a kind of like this system it seems it is unpractical now, is unworthy promoting.Arm 84,90,95,102,133,134,151 refers now to and is preferably, but not necessarily, is substantially disposed in blade 12 tops, on top or the top of neck 11A, so that the operation of described all arm lockings and release blade 12.
In Figure 13 to 24, arm 84,90,95,102,133,134,151 is arranged in the neck 11A of blade 12 tops substantially.These arms and be used for blade 12 be fixed on neck 11A locking mechanism other parts if desired, also can be positioned among the neck 11A near blade 12 any needed positions, comprise sidepiece, back or the bottom of blade 12.
In Figure 13, a side of passing neck 11A forms the hole 160 that has internal thread, and a side of passing neck 11A in the same way forms opening 14A.Hold-down screw 161 (Figure 14) is screwed in the hole 160.The inner 162 of hold-down screw 161 props up the side 74A of blade 12, so that blade 12 is remained among the neck 11A.Make end 162 no longer prop up side 74A in case hold-down screw 161 unclamps, shift out so blade 12 just can slide from neck 11A.
The structure of neck 11A can change on demand, as long as blade 12 energy are mounted thereto and neck 11A can be folding between enable possition and closing position with respect to handle of a knife 10A.
In the above description, describe the present invention with reference to specific embodiment.It should be understood that various modifications and changes may be made and do not depart from the scope of the present invention.Specification and accompanying drawing should be treated become be the demonstration mode, rather than the restriction, all such modifications all will be by inference for falling within the scope of protection of the present invention.Above relatively some specific embodiments some advantages, other benefit have been described and to the solution of problem.Element as described herein is optional to the invention process, is " necessary " or " crucial " unless specialize.
Claims (8)
1. multi-functional knife comprises:
(a) handle of a knife (10) with one first end (50) and one second end (51);
(b) neck (11) with an end (52) and near-end (53);
(c) be installed in a blade (12) on the described end (52), described blade (12) comprises:
(i) bottom (27),
(ii) relative and a separate top (19) with described bottom (27),
A (iii) cutting edge (13) that extends along described bottom (27), and
(d) described near-end (53) is pivoted be connected to a fixture (16) of described first end (50), so that described neck (11) can move between the two positions,
(i) one first open expanded position, described cutting edge (13) exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge (13) (10) is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade (12) in the described neck (11), and
(ii) one second operating position, described locking mechanism unclamps to allow described blade (12) to shift out from described neck (11), and wherein, described locking mechanism also comprises a button (80), described locking mechanism is remained on described first operating position.
2. multi-functional knife as claimed in claim 1 is characterized in that, described button (80) is rotatable described locking mechanism is discharged into described second operating position.
3. multi-functional knife as claimed in claim 1, it is characterized in that, described locking mechanism also comprises a lever arm (84), and described button comprises a groove (89), and described groove is configured to make described lever arm to discharge so that described locking mechanism is in described second operating position.
4. multi-functional knife as claimed in claim 1, it is characterized in that, described locking mechanism also comprises a lever arm (84), described button comprises a groove (89), described button structure is rotatable and described groove is moved into aligns with described lever arm and shift out and the aliging of described lever arm, so that described locking mechanism can move between described two operating positions at least.
5. multi-functional knife as claimed in claim 1, it is characterized in that, described locking mechanism also comprises a lever arm, described lever arm has a projection that stretches into the fixing hole in the described blade (12), described button can discharge described lever arm and from the described fixing hole of described blade (12), shift out described projection.
6. multi-functional knife comprises:
(a) handle of a knife (10) with one first end (50) and one second end (51);
(b) neck (11) with an end (52) and near-end (53);
(c) be installed in a blade (12) on the described end (52), described blade comprises:
(i) bottom (27),
(ii) relative and a separate top (19) with described bottom (27),
A (iii) cutting edge (13) that extends along described bottom (27), and
(d) described near-end (53) is pivoted be connected to a fixture (16) of described first end (50), so that described neck (11) can move between the two positions,
(i) one first open expanded position, described cutting edge (13) exposes with usefulness cutting object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge (13) (10) is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade (12) in the described neck (11), and
(ii) one second operating position, described locking mechanism unclamps to allow described blade (12) to shift out from described neck (11), wherein, described locking mechanism also comprises a lever arm, described lever arm has a hub switch side and an end, the end of described lever arm comprises a spring, and described spring applies power against the described end of described lever arm.
7. multi-functional knife comprises:
(a) handle of a knife (10) with one first end (50) and one second end (51);
(b) neck (11) with an end (52) and near-end (53);
(c) be installed in a blade (12) on the described end (52), described blade comprises:
(i) bottom (27),
(ii) relative and a separate top (19) with described bottom (27),
A (iii) cutting edge (13) that extends along described bottom (27), and
(d) described near-end (53) is pivoted be connected to a fixture (16) of described first end (50), so that described neck (11) can move between the two positions,
(i) one first open expanded position, described cutting edge (13) exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge (13) (10) is stored, and
(e) locking mechanism that can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade (12) in the described neck (11), and
Unclamp allowing described blade (12) to shift out from described neck (11) (ii) one second operating position, described locking mechanism,
Wherein, described locking mechanism comprises a projection that stretches into the fixing hole in the described blade (12), and the described projection described blade of restriction (12) is thrown off with described neck (11).
8. multi-functional knife comprises:
(a) handle of a knife (10) with one first end (50) and one second end (51);
(b) neck (11) with an end (52) and near-end (53);
(c) be installed in a blade (12) on the described end (52), described blade comprises:
(i) bottom (27),
(ii) relative and a separate top (19) with described bottom (27),
A (iii) cutting edge (13) that extends along described bottom (27), and described blade (12) also comprises a fixing hole that passes described blade formation, the part of described cutting edge (13) extends into the described end (52) of described neck (11), the part of described cutting edge (13) stretches out from the described end (52) of described neck (11)
(d) described near-end (53) is pivoted be connected to a fixture (16) of described first end (50), so that described neck (11) can move between the two positions,
(i) one first open expanded position, described cutting edge (13) exposes being used to cut object, and
(ii) one second closed folded position, the contiguous described handle of a knife of described cutting edge (13) (10) is stored, and
(e) locking mechanism that when neck (11) is in the unlatching expanded position, can between at least two operating positions, move,
(i) one first operating position, the part of described locking mechanism is fixed on described blade (12) in the described neck (11), and
(ii) one second operating position, described locking mechanism unclamps to allow described blade (12) to shift out from described neck.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/360,243 US6915577B2 (en) | 2000-09-29 | 2003-02-07 | Utility knife blade securing device |
| US10/360,243 | 2003-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1572440A CN1572440A (en) | 2005-02-02 |
| CN100333880C true CN100333880C (en) | 2007-08-29 |
Family
ID=34519847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031424902A Expired - Lifetime CN100333880C (en) | 2003-02-07 | 2003-06-12 | Utility knife blade securing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100333880C (en) |
| HK (1) | HK1071712A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416587A (en) * | 2013-09-11 | 2015-03-18 | 王爱国 | Utility knife |
| CN105479493A (en) * | 2016-01-26 | 2016-04-13 | 刘青建 | Inserting casing for butterfly knife |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095624A (en) * | 1990-12-07 | 1992-03-17 | Ennis Raynold W | Lock system for a folding knife |
| US5303469A (en) * | 1993-04-15 | 1994-04-19 | Yin Han Huang | Cutter knife |
| US5909930A (en) * | 1997-08-05 | 1999-06-08 | Millers Falls Tool Company | Retractable blade utility knife having quick change feature |
| US5966816A (en) * | 1998-11-20 | 1999-10-19 | Roberson; Robbie E. | Straight knife with interchangeable pivoting blade |
| CN2391752Y (en) * | 1999-10-28 | 2000-08-16 | 宁波兴伟塑料制品有限公司 | Artist's knife for carving or the like |
-
2003
- 2003-06-12 CN CNB031424902A patent/CN100333880C/en not_active Expired - Lifetime
-
2005
- 2005-05-27 HK HK05104447A patent/HK1071712A1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095624A (en) * | 1990-12-07 | 1992-03-17 | Ennis Raynold W | Lock system for a folding knife |
| US5303469A (en) * | 1993-04-15 | 1994-04-19 | Yin Han Huang | Cutter knife |
| US5909930A (en) * | 1997-08-05 | 1999-06-08 | Millers Falls Tool Company | Retractable blade utility knife having quick change feature |
| US5966816A (en) * | 1998-11-20 | 1999-10-19 | Roberson; Robbie E. | Straight knife with interchangeable pivoting blade |
| CN2391752Y (en) * | 1999-10-28 | 2000-08-16 | 宁波兴伟塑料制品有限公司 | Artist's knife for carving or the like |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1071712A1 (en) | 2005-07-29 |
| CN1572440A (en) | 2005-02-02 |
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