CN201092052Y

CN201092052Y - Safe multi-purpose knife

Info

Publication number: CN201092052Y
Application number: CNU2007200575108U
Authority: CN
Inventors: 蒋明基
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2008-07-30
Anticipated expiration: 2017-09-26

Abstract

The utility model discloses a safety multifunctional cutter, comprising a tool shank which is formed by the connecting of tool shank pieces which are parallel to each other; two ends of the tool shank are respectively and pivotally connected with blades with the same or different types through a pin shaft; a cutter trough which can hold the blades is formed among the took shank pieces; the cutter groove is internally provided with a safety protection device by which the tool blade at one end of the tool shank is locked when the tool blade at the other end of the tool shank is opened. The safety protection device comprises a movable bolt arranged in the cutter trough; the back and the abdomen of cutter head of the blade are respectively provided with a notch; when the blades at two ends of the tool shank are folded in the blade trough, the distance between the notches at the back of the blades at two ends of the tool shank is more than the length of the movable bolt; when the blade at one end is opened and the blade at the other end is folded, the distance between the notch at the back of the opened blade and the notch at the abdomen of the folded blade is equivalent to the length of the movable bolt. When the blade at one end of the multifunctional cutter is used, the blade at the other end is in the locked safe state, thus avoiding the user from being damaged accidentally.

Description

A kind of safety multi-purpose cutter

Technical field

The utility model relates to a kind of improvement technology of five metals cutter, particularly a kind of multi-purpose cutter of daily life.

Technical background

Various multi-purpose cuttves are arranged at present on the market, and its structure normally realizes at the blade of the hinged multiple difference in functionality in the rear and front end of handle of a knife.This multi-purpose cutter is convenient and practical, still, because structural design is unreasonable, this multi-purpose cutter has produced a problem inevitably, promptly wherein the blade of an end is in the process of opening and using, and original obsolete other end blade may accident be opened, thereby stabs or hurt the user.

The utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of safety multi-purpose cutter is provided, and makes the blade that is hinged on the handle of a knife rear and front end in use realize interlocking.

The technical scheme that realizes the utility model technique effect is: a kind of safety multi-purpose cutter; comprise the handle of a knife that connects and composes by the handle of a knife sheet that is parallel to each other; the two ends of handle of a knife are hinged with the blade of identical or different kind respectively by bearing pin; form the cutter groove hold these blades between the handle of a knife sheet, be provided with in the described cutter groove when on the handle of a knife wherein during an end blades open, the blocked safety guard of other end blade.

Described safety guard comprises and is arranged on dividing plate and the movable bolt parallel with the handle of a knife sheet in the cutter groove, and the two ends of dividing plate are connected with the bearing pin of hinged blade, and what movable bolt was arranged on that the sidewall of dividing plate is provided with holds it along in the chute of handle of a knife fore-and-aft direction slip; The back and the belly of blade end are respectively equipped with bayonet socket, are respectively equipped with before rightabout flanging and back flanging at the two ends of movable bolt, and preceding flanging matches with bayonet socket on the front end blade; Back flanging matches with bayonet socket on the blade of rear end; When the blade at handle of a knife two ends all folded in the cutter groove, the distance between the bayonet socket at blade back, handle of a knife two ends was greater than the length of movable bolt; The blades open of handle of a knife one end, when other end blade folded, it was suitable with the length of movable bolt with the distance that folds between the bayonet socket of blade belly to open the bayonet socket at blade back.Therefore, when the blade Unscrew of an end wherein, the bayonet socket at this blade back is just in time corresponding to an end of movable bolt, and promotion activity bolt slides, make the other end of movable bolt engage with the bayonet socket of other end blade belly, in this case, the blade of the other end can not be from Unscrew in the cutter groove, thereby when realizing that an end blade uses, other end blade is locked.Have only after the blade of opening folds, the bayonet socket at this blade back has been removed the fastening to movable bolt, other end blade just can move by driving activity bolt, thereby realize this blade Unscrew in the cutter groove, after this blades open, the bayonet socket at back reconstitutes locking to the blade that folds with movable bolt, the bayonet socket that folds the blade belly.

As further improvement of the utility model: described blade end is respectively equipped with anti-folding part, and the two side of described dividing plate is respectively equipped with the shell fragment of perk laterally, and when blades open, the terminal overhead of corresponding shell fragment is on the anti-folding part of this blade.

Further improve as of the present utility model, the outside of described handle of a knife sheet is provided with and drives the handwheel that blade rotates around bearing pin, and this handwheel is connected with described bearing pin.

It is the waist shape groove in the center of circle that described handle of a knife sheet is provided with the bearing pin, and described blade is provided with alignment pin, and alignment pin is connected with handwheel after passing described waist shape groove.

Alignment pin extends to the dividing plate direction on the described blade, on the dividing plate position corresponding with alignment pin be provided with the handle of a knife bearing pin be the center of circle when blade when bearing pin rotates, the waist connected in star that slides within it of alignment pin.

Further improve as of the present utility model, the periphery of described handwheel is provided with anti-skidding gear ring.More than described anti-skidding gear ring comprises that two circles or two enclose, and the diameter difference of adjacent anti-skidding gear ring.Perhaps, be provided with the conical surface between the end face of described handwheel and the anti-skidding gear ring, the described conical surface is provided with some equally distributed teeth groove, and described teeth groove is connected with the teeth groove of anti-skidding gear ring.

Compared with prior art, the beneficial effects of the utility model are:

1,, makes that the blade of the other end was in the safe condition of locking, thereby avoids the user to be subjected to unexpected injury when wherein an end blade used by a safety guard that can make the blade interlocking of handle of a knife two ends is set;

2, in the cutter groove, dividing plate is set, and setting prevents the shell fragment that the blade accident is amounted on dividing plate, makes that the use of this multi-purpose cutter is safer;

3, the chute that holds movable bolt is set on dividing plate, movable bolt and dividing plate flexibly connect, and simple in structure, assurance activity bolt reliably slides, and prevents that movable bolt accident from dropping out, thereby has guaranteed the reliability of safety guard;

4, at the arranged outside rotation hand wheel of handle of a knife sheet, the handwheel periphery is provided with anti-skidding gear ring, makes things convenient for one-handed performance to open and fold blade.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model safety multi-purpose cutter is further described:

Fig. 1 is the front view that fruit knife folds, cutting knife is opened of the utility model multi-purpose cutter;

Fig. 2 is for removing the positive handle of a knife sheet and the front view of handwheel among Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is fruit knife is opened, cutting knife folds front view (not showing handle of a knife sheet and handwheel).

Fig. 5 is the front view of movable bolt;

Fig. 6 is the stereogram of movable bolt among Fig. 5;

Fig. 7 is the front view of handle of a knife sheet;

Fig. 8 is the rearview of handwheel;

Fig. 9 is the front view of dividing plate;

Figure 10 is the rearview of dividing plate

Figure 11 is the front view of cutting knife;

Figure 12 is the front view of fruit knife.

The specific embodiment

As accompanying drawing 1 to 4, Figure 11, safety multi-purpose cutter shown in Figure 12, comprise handle of a knife, handle of a knife is formed by connecting by two mutual parallel handle of a knife sheets 1, the front end of handle of a knife is hinged with cutting knife 2 by bearing pin 11, the rear end of handle of a knife is hinged with fruit knife 3 by bearing pin 12, simultaneously, form between the two handle of a knife sheets 1 hold cutting knife 2 and fruit knife 3 rotations amount in cutter groove 4.In cutter groove 4, be provided with when the cutting knife 2 of handle of a knife one end or fruit knife 3 are opened, the fruit knife 3 or cutting knife 2 blades of the other end can blocked safety guards.This safety guard comprises a movable bolt 6 that can slide between cutting knife 2 and fruit knife 3, back and the belly at cutting knife 2 ends is respectively equipped with

bayonet socket

21,24 in addition; Back and belly at fruit knife 3 ends are respectively equipped with bayonet socket 31,34.The size of these

bayonet sockets

21,24,31,34 and movable bolt 6 is provided with and must satisfies: when cutting knife 2 and fruit knife 3 all fold in cutter groove 4, distance between the

bayonet socket

21,31 at cutting knife 2 and fruit knife 3 backs must be greater than the length of movable bolt 6, otherwise cutting knife 2 and fruit knife 3 all can not be opened; Simultaneously, require cutting knife 2 to open, when fruit knife 3 folded, the distance between the bayonet socket 21 at the bayonet socket 34 of fruit knife 3 bellies and cutting knife 2 backs was suitable with the length of movable bolt 6; Cutting knife 2 folds, and when fruit knife 3 was opened, the distance between the bayonet socket 31 at the bayonet socket 24 of cutting knife 2 bellies and fruit knife 3 backs was suitable with the length of movable bolt 6.Shown in accompanying drawing 5,6, this activity bolt 6 is a laminated structure, is respectively equipped with before rightabout flanging 61 and back flanging 62 at the two ends of movable bolt, and preceding flanging 61 matches with

bayonet socket

21,24 on the cutting knife 2; Back flanging 62 matches with

bayonet socket

31,34 on the fruit knife 3.

As shown in Figure 2, when cutting knife 2 Unscrews, the bayonet socket 21 at cutting knife 2 backs is just in time corresponding to the preceding flanging 61 of movable bolt 6, and promotion activity bolt 6 moves to the back-end, make the back flanging 61 of movable bolt 6 engage with the bayonet socket 34 of fruit knife 3 bellies, in this case, fruit knife 3 can not be from Unscrew in the cutter groove 4, thereby when realizing that cutting knife 2 uses, fruit knife 3 is locked.Have only after the cutting knife of opening 2 folds, the bayonet socket 21 at cutting knife 2 backs has been removed the fastening to movable bolt 6, and fruit knife 3 just can move by driving activity bolt 6, thereby realizes that fruit knife 3 is from cutter groove 4 interior Unscrews; As shown in Figure 4, in fruit knife 3 opening procedures, the motion of promotion activity bolt 6 forward end, after fruit knife 3 is opened, the bayonet socket 31 at fruit knife 3 backs engages with the back tabs 62 of movable bolt 6, and the bayonet socket 24 of cutting knife 2 bellies engages with the preceding tabs 61 of movable bolt 6, constitutes the locking to cutting knife 2 together, when fruit knife 3 used, cutting knife 2 can not be opened.

Wherein, movable bolt 6 is installed in the cutter groove 4 on the dividing plate 5 parallel with handle of a knife sheet 1, and the two ends of this dividing plate 5 are connected with the bearing pin 11,12 of hinged cutting knife 2 and fruit knife 3, and cutter groove 4 is separated into two chambeies, hold cutting knife 2 and fruit knife 3 respectively.On the sidewall of dividing plate 5, be provided with and hold the chute 53 that slides in movable bolt 6 front and back, the opening 55 of flanging 62 after the position corresponding with the back flanging 62 of movable bolt 6 is provided with an empty avoiding simultaneously, be provided with screwed hole 63 at the middle part of movable bolt 6, on dividing plate 5, be provided with rectangular groove 56, screw is worn rectangular groove 56 screwed holes 63 back and on the movable bolt 6 and is connected, make being connected of maintenance activity between movable bolt 6 and the dividing plate 5, the length of wherein rectangular groove 56 is slightly larger than the stroke that movable bolt 6 slides along the handle of a knife fore-and-aft direction, under the effect of the cutting knife 2 at handle of a knife two ends or fruit knife 3, movable bolt 6 slides in the chute 54 of dividing plate 5.

In order to guarantee the serviceability of the utility model multi-purpose cutter better: the end at cutting knife 2 and fruit knife 3 is respectively equipped with anti-folding part 23,33, and the two side of dividing plate 5 is respectively equipped with laterally the

shell fragment

51,52 of (being handle of a knife sheet direction) perk, shown in accompanying drawing 2,4, when cutting knife 2 or fruit knife 3 are opened,

corresponding shell fragment

51,52 terminal overheads on the anti-folding part 23,33 of cutting knife 2 or fruit knife 3, prevent cutting knife 2 or fruit knife 3 in use accident turn back to cutter groove 1.When needs were regained cutting knife 2 or fruit knife 3, the overhead that 51 or 52 the lateral surface of pushing shrapnel is respectively removed cutting knife 2 or fruit knife 3 ends got final product.When this multi-purpose cutter folded, the compression of the side of cropped respectively cutter 2 of

shell fragment

51 or 52 or fruit knife 3 also relied on dividing plate 5.

In addition, for convenience in cutter groove 4, open cutting knife 2 or fruit knife 3, therefore be provided with in handle of a knife sheet 1 outside adjacent and drive its handwheels 8 around bearing pin 11 or 12 rotations with cutting knife 2 or fruit knife 3, as shown in Figure 7, be provided with on handle of a knife sheet 1 with bearing pin 11 is the waist shape groove 13 in the center of circle, as shown in Figure 8, the back side of handwheel 8 is provided with recess 84, cutting knife 2 or fruit knife 3 are provided with alignment pin 22, match with the recess 84 at handwheel 8 back sides in waist shape groove 13 backs that alignment pin 22 passes on the handle of a knife sheet 1, simultaneously, handwheel 8 is connected with respective hinge cutting knife 2 or fruit knife 3 bearing pins 11 or 12, when handwheel 8 rotation, alignment pin 22 slides in waist shape groove 13,4 opens or folds in the cutter groove thereby drive corresponding cutting knife 2 or fruit knife 3.The setting of this handwheel 8, replace prior art is provided with a miniature lever on blade structure, singlehanded this multi-purpose cutter that uses of special handled easily person, under the situation that the other hand of operator is inconvenient to operate (as work high above the ground), the operator can open cutting knife 2 or fruit knife 3 by the handwheel 8 of correspondence.

The other end of

alignment pin

22,32 extends to dividing plate 5 directions on cutting knife 2 or the fruit knife 3 simultaneously, and also to be provided with the handle of a knife bearing pin be the waist connected in

star

54,57 in the center of circle in the position corresponding with this

alignment pin

22,32 on dividing plate 5, cutting knife 2 or fruit knife 3 are when bearing pin rotates,

alignment pin

22 or 23 slides in this

groove

54,57, strengthens cutting knife 2 or the stationarity of moving in the process is opened or folded to fruit knife 3 with this.For convenient driving handwheel 8, as shown in Figure 3, be provided with anti-skidding gear ring 81, the friction when rotating handwheel 8 to strengthen at the periphery of handwheel 8.Certainly in order further to improve the anti-skid factor of operator when rotating handwheel, can be at the anti-skidding gear ring 81 that two circles or the different-diameter more than two circles are set on the handwheel 8, perhaps between the end face of handwheel 8 and anti-skidding gear ring 81, a conical surface 82 is set, on the conical surface 82, be provided with some equally distributed teeth groove 83, these teeth groove 83 are connected with the teeth groove of anti-skidding gear ring 81, the handwheel as shown in accompanying drawing 1.

Multi-purpose cutter of the present utility model also can be as required at the hinged side by side blade more than two or two of front end or rear end of handle of a knife, like this when handle of a knife one end wherein one in use blade, all blades of the handle of a knife other end all can not be opened, and prevent from user's hand is caused unexpected injury.

As shown in Figure 2, cutting knife 2 comprises blade 2a that is hinged on the handle of a knife and the blade 2b that flexibly connects with blade 2a, and the outside of blade 2b can be provided with a blade cover (not shown), prevents blade 2b incised wound user in the process of amounting to.The blade 2a back of cutting knife 2 is provided with movable locking plate 7, movable locking plate 7 is hinged by bearing pin 25 with blade 2a, the blade 2b of cutting knife 2 is provided with recess 9, the front end of movable locking plate 7 inserts in this recess 9, the rear end overhead is on the inner integrated shell fragment 26 of blade 2a (also can replace with torsionspring), and the front end of movable locking plate 7 also is provided with a handle 71 that stretches out blade 2a outside.When need changing blade 2b, that upwards carries movable locking plate 7 exposes handle 71, and its recess 9 that breaks away from blade 2b get final product, and after the release handle 71, these activity locking plate 7 dependence shell fragments 26 reset.

Claims

1. safety multi-purpose cutter; comprise handle of a knife; the two ends of handle of a knife are hinged with the blade (2,3) of identical or different kind respectively by bearing pin (11,12); handle of a knife is formed by connecting by the handle of a knife sheet that is parallel to each other (1,1a); form the cutter groove (4) that holds these blades between the handle of a knife sheet (1,1a), it is characterized in that: be provided with in the described cutter groove (4) when the wherein blade of an end (2 or 3) when opening, the blocked safety guard of other end blade (3 or 2) on the handle of a knife.

2. according to the described safety multi-purpose cutter of claim 1, it is characterized in that: described safety guard comprises and being arranged in the cutter groove (4) and parallel dividing plate (5) and the movable bolt (6) of handle of a knife sheet (1,1a), the two ends of dividing plate (5) are connected with the bearing pin of hinged blade (11,12), and movable bolt (6) is arranged on that the sidewall of dividing plate (5) is provided with holds in its chute (53) that slides along the handle of a knife fore-and-aft direction; Terminal back and the belly of blade (2,3) is respectively equipped with bayonet socket (21,24,31,34), be respectively equipped with flanging before rightabout (61) and back flanging (62) at the two ends of movable bolt (6), preceding flanging (61) matches with bayonet socket (21,24) on the front end blade (2); Back flanging (62) matches with card (31,34) on the rear end blade (3); When the blade at handle of a knife two ends (2,3) all folded in cutter groove (4), the distance between the bayonet socket (21,31) at handle of a knife two ends blade (2,3) back was greater than the length of movable bolt (6); The blade (2) of handle of a knife one end is opened, and other end blade (3) is when folding, and it is suitable with the length of movable bolt (6) with the distance that folds between the bayonet socket (34) of blade (3) belly to open the bayonet socket (21) at blade (2) back.

3. according to the described safety multi-purpose cutter of claim 2, it is characterized in that: described blade (2,3) end is respectively equipped with anti-folding part (23,33), the two side of described dividing plate (5) is respectively equipped with the shell fragment (51,52) of perk laterally, when opening, the corresponding terminal overhead of shell fragment (51 or 52) is on the anti-folding part (23 or 33) of this blade (2 or 3) at blade (2 or 3).

4. according to each described safety multi-purpose cutter of claim 1 to 3, it is characterized in that: the outside of described handle of a knife sheet (1) is provided with and drives the handwheel (8) of blade (2) around bearing pin (11) rotation, and this handwheel (8) is connected with bearing pin (11).

5. according to the described safety multi-purpose cutter of claim 4, it is characterized in that: it is the waist shape groove (13) in the center of circle that described handle of a knife sheet (1) is provided with bearing pin (11), described blade (2) side is provided with alignment pin (22), and alignment pin (22) passes described waist shape groove (13) back and is connected with handwheel (8).

6. according to the described safety multi-purpose cutter of claim 5, it is characterized in that: described blade (2) is gone up alignment pin (22) and is extended to dividing plate (5) direction, dividing plate (5) go up the position corresponding with alignment pin (22) be provided with handle of a knife bearing pin (11) be the center of circle when blade (2) when bearing pin (11) rotates, the waist connected in star (54) that slides within it of alignment pin (22).

7. according to the described safety multi-purpose cutter of claim 6, it is characterized in that: the periphery of described handwheel (8) is provided with anti-skidding gear ring (81).

8. according to the described safety multi-purpose cutter of claim 7, it is characterized in that: more than described anti-skidding gear ring (8) comprises that two circles or two enclose, and the diameter difference of adjacent anti-skidding gear ring.

9. according to the described safety multi-purpose cutter of claim 7, it is characterized in that: be provided with the conical surface (82) between the end face of described handwheel (8) and the anti-skidding gear ring (81), the described conical surface (82) is provided with some equally distributed teeth groove (83), and described teeth groove (83) is connected with the teeth groove of anti-skidding gear ring (81).