CN2850854Y - Novel cutter capable of preventing blade free falling - Google Patents
Novel cutter capable of preventing blade free falling Download PDFInfo
- Publication number
- CN2850854Y CN2850854Y CN 200520066607 CN200520066607U CN2850854Y CN 2850854 Y CN2850854 Y CN 2850854Y CN 200520066607 CN200520066607 CN 200520066607 CN 200520066607 U CN200520066607 U CN 200520066607U CN 2850854 Y CN2850854 Y CN 2850854Y
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- blade
- cutter head
- cutter
- knife
- prevents
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- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims description 24
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a novel cutter capable of preventing blade free falling, particularly a protective cutter used for preventing blade slide and falling when a blade locking mechanism is opened, which comprises a knife handle and a knife head pivoted on the knife handle, wherein the knife head is provided with a slot used for installing a blade and a locking mechanism movably connected with the blade, and the inner part of the knife head is provided with a clamping device used for positioning the blade in an elastic mode. The utility model has the advantages that through the arranged elastic clamping device for the blade and the blade locking mechanism used for replacing the blade, the blade is prevented from sliding and falling in the course of replacing, thereby, users' safety is ensured, the blade is replaced conveniently, and the blade is prevented from swinging up and down or right and left during use. A convex block at the front end of the blade locking mechanism is pressed tightly by a user, the clamping device is used for supporting the blade tightly by elasticity, the blade can be taken out from the knife head conveniently, and practicability and convenience for replacing blades through a multi-purpose cutter are enhanced.
Description
Technical field
The utility model relates to a kind of hardware ﹠ tools of daily life, particularly a kind of new-type cutter that prevents that blade from freely dropping.
Technical background
The ZL.200520063202.7 of my application discloses and has prevented freely the drop multipurpose cutter of side chain of blade a kind of having, and a novel blade locking mechanism is set on cutter, when opening and closing locking mechanism, and just replaceable and positioning blade.But the cutter of this structure, when opening blade locking mechanism, owing to have certain clearance between blade and the cutter head, blade may skid off or drop out in cutter head, and the user is caused unexpected injury.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art; by the elasticity fastening device of a blade is set; provide prevent freely the drop cutter of protection of blade a kind of having when opening blade locking mechanism; thereby ensure user's safety; change blade more easily, and avoid in use blade up and down or double swerve.
The utility model prevents that the technical scheme of the new-type cutter that blade freely drops from being: a kind of new-type cutter that prevents that blade from freely dropping, comprise handle of a knife, be articulated in the cutter head on the handle of a knife, cutter head is provided with slit that holds blade and the locking mechanism that flexibly connects this blade, it is characterized in that: be provided with the elasticity fastening device that prevents that blade from freely dropping in the described cutter head.
Described elasticity fastening device comprises the groove that is arranged on the slit inwall and is arranged at the interior flexure strip of this groove that the warped surface and the blade face of described flexure strip fit.
Described cutter head comprises two cutter head assemblies, and slit is the groove that is made on two or one of them cutter head assembly, and groove is made at the inwall of groove, and flexure strip places in the groove, and two cutter head assemblies are solidly installed.
Connect for welding, riveted joint or securing member between the described cutter head assembly.
The location grab that described locking mechanism comprises flexible substrates and is connected this substrate front end, the flexible substrates rear end is connected on the cutter head; Described blade is provided with the draw-in groove that matches with this location grab.
Described flexible substrates is provided with the projection of being convenient to push.
Described flexible substrates is made with location grab one, or flexible substrates and location grab are made separately respectively again and being connected as one.
As further improvement of the utility model, described handle of a knife inboard is provided with the governor motion of regulating the cutter head use angle.
Described governor motion comprises some bayonet sockets that the elasticity engagement device that is located in the handle of a knife and cutter head rear end are provided with; Described engagement device front end is provided with the claw of fastening in bayonet socket, and the rear end is fixed on the handle of a knife; It is on the circumference at center with the bearing pin that described bayonet socket directly is made at cutter head, or with the gear teeth of claw fastening on, the described gear teeth are fixed on the cutter head.
Further improve as of the present utility model, adorn the cavity of some spare blades in described handle of a knife rear portion is provided with, the end face opening part of cavity is provided with the removable cover that is articulated on the handle of a knife, and the removable cover fastening is on the set elasticity fastening device of handle of a knife.
The beneficial effects of the utility model are, the elasticity fastening device by a blade when changing blade is set on cutter and the locking mechanism of fixed blade, prevent blade landing or drop out in the replacing process, thereby ensure user's safety, change blade more easily, and avoid in use blade up and down or double swerve.This structure makes the user pin the projection of locking mechanism front end, locking mechanism is opened the locking of blade, the elasticity fastening device relies on elastic force to withstand blade, can easily blade be taken out from cutter head, has strengthened the practicality and the convenience of this cutter changing blade greatly.And, in handle of a knife He on the cutter head, being equipped with bayonet socket and flexible engagement device, the user can regulate the use angle of cutter head easily, satisfies the needs of different situations.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is prevented that the new-type cutter that blade freely drops is further described:
Fig. 1 is the front view of the utility model cutter;
Fig. 2 removes the vertical view of blade cover for Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 removes the upward view of blade cover for Fig. 1;
Fig. 5 is the B-B cutaway view of Fig. 4;
Fig. 6 is the front view of different structure shape blade;
Fig. 7 is the front view of another embodiment of the utility model cutter;
Fig. 8 is the front view of another embodiment of the utility model cutter;
Fig. 9 is the C-C cutaway view of Fig. 8;
Figure 10 is a D place enlarged drawing among Fig. 4.
The specific embodiment
Embodiment 1:
Prevent the new-type cutter that blade freely drops as accompanying drawing 1 to the utility model shown in Figure 5, comprise handle of a knife 1, be articulated in cutter head 2 on the handle of a knife 1 by bearing pin 22, cutter head 2 front ends are provided with the slit 5 that blade 3 is installed, and cutter head 2 backs are provided with the locking mechanism 4 that flexibly connects this blade 3.Shown in accompanying drawing 4,5 and 10,, be provided with blade 3 resiliently mounted fastening devices at slit 5 inwalls of cutter head 2 for fear of blade 3 landing when opening locking mechanism 4.This fastening device comprises the groove 10 that is arranged on the slit inwall and places flexure strip 20 in this groove 10 that the working surface of flexure strip 20 also is that warped surface and blade 3 surfaces fit tightly, and sees the zoomed-in view of accompanying drawing 10.Described cutter head 2 comprises cutter head assembly 23 and cutter head assembly 24, slit 5 is for being made at the groove on cutter head assembly 23 and/or the cutter head assembly 24, groove 10 is made at the inwall of groove, flexure strip 20 places in the groove 1, is solidly installed by welding, riveted joint or securing member connection between cutter head assembly 23 and the cutter head assembly 24.Like this, by the combination of elasticity fastening device and blade locking mechanism 4, prevent blade 3 landing or drop out in the replacing process, thereby ensure user's safety, change blade 3 more easily, and avoid in use blade 3 up and down or double swerve.This structure makes the user pin the projection 6 of blade locking mechanism 4 front ends, locking mechanism 4 is opened the locking of blade 3, the flexure strip 20 of elasticity fastening device relies on elastic force to withstand blade 3, can easily blade 3 be taken out from cutter head 2, strengthen the practicality and the convenience of this new-type cutter replacing blade 3 greatly.
Locking mechanism 4 is by flexible substrate 42 and be located at these substrate 42 front ends, form with the location grab 41 of substrate 42 one, and flexible substrates 42 can be to make separately respectively with location grab 41, connection between them can be welding or riveted joint, or closely is connected by the cooperation of hole and pin.Flexible substrates 42 rear ends are fixed on the cutter head 2, and are same, it with cutter head 2 between to be connected can be welding or riveted joint or tight fit connection.Blade 3 is provided with the U-shaped draw-in groove 31 that matches with this location grab 41.After blade 3 inserts the slit 5 of cutter heads 2 front ends, draw-in groove 31 just fastening on the location grab 41 of substrate 42 front ends.And flexible substrates 42 is provided with the projection of being convenient to push 6, can be welding or riveted joint or tight fit being connected between this substrate 42 and the projection 6 and connects.Be provided with clearance position 7 with these projection 6 corresponding positions on the cutter head 2.A side relative with this clearance position 7 on cutter head 2 also is provided with the elongated slot 9 of being convenient to substrate 42 strains.Pin the projection 6 of blade locking mechanism 4 front ends, just blade 3 can be taken out from cutter head 2, strengthened the practicality and the convenience of this multipurpose cutter replacing blade 3 greatly, after the cutting edge wearing and tearing or destruction of blade 3, the blade 3 that can more renew easily and the blade 3 of different cutting edges.
In order to guarantee the security of cutter, be provided with the blade cover 12 that entangles blade 3 exposed parts at the front end of blade 3.Blade cover 12 adopts plastic cement to make, and directly is enclosed within on the blade 3, and can be retracted in the handle of a knife with cutter head 2 one.And as shown in Figure 6, blade 3 can be designed to different planforms, to realize different functions of use.
Shown in accompanying drawing 3,4, handle of a knife 1 belly is provided with and holds the handle of a knife groove 11 that cutter head 2 and blade 3 are turned back and regained, a side in the handle of a knife groove 11 fixedly installs resilient engagement device 15, cutter head 2 rear ends be provided with can with this engagement device 15 two bayonet sockets 16 of locking mutually, engagement device 15 front ends are provided with the claw 17 of fastening in bayonet socket 16, and the rear end is fixed on the handle of a knife 2.It is on the circumference at center that bayonet socket 16 is distributed in bearing pin 22, and in practical application, bayonet socket 16 also can be provided with more than three or three as required, so that realize multiple different angle between handle of a knife 1 and the cutter head 2.The locking of bayonet socket 16 and claw 17 just can be removed in the front portion of lateral press engagement device 15 like this, makes cutter head 2 and blade 3 can together amount in the income handle of a knife 1 or opens to a certain set angle.When cutter head 2 opened and used, just owing to the elastic reset of engagement device 15, overhead prevented that at the bayonet socket 16 of cutter head 2 rear ends cutter head 2 from use turning back to the claw 17 of engagement device 15 front ends.
Embodiment 2:
Embodiment 3:
Embodiment 3 is with the difference of embodiment 1, the structure difference of locking mechanism 4, and it is to utilize lever principle to realize, so the position difference at its projection 6 places, it is arranged on the rear portion of substrate 42.As shown in Figure 8, location grab 41 fastenings of substrate 42 front ends are at the U-shaped draw-in groove 31 of blade 3.Be provided with an elastic component in projection 6 bottoms, push projection 6 when downwards, thereby blade 3 is taken out in the locking that just can open blade 3, make that substrate 42 resets, fastening blade 3 after perhaps putting into blade 3.In this embodiment, slit 5 sides of cutter head 2 are provided with flexure strip 20 equally, so that when changing blade 3, and flexible fastening blade 3.
Shown in accompanying drawing 8 and 9, the rear portion of handle of a knife 1 is provided with shape, size and the corresponding cavity 13 of blade, is located at the left side or the right side of handle of a knife 1.These cavity 13 three side sealings close, an opening.1 to 3 spare blade 3 is housed in the cavity 13, and the end face opening part of cavity 13 is provided with closing device, and it comprises the removable cover 14 of opening and closing cavity 13, and this removable cover 14 is articulated on the handle of a knife 1, and the size of removable cover 14 and the opening size of cavity adapt.Be provided with the locating groove 18 of sphere in the side of removable cover 14, in cavity 13 sidewalls and draw-in groove 18 corresponding spring holes, be provided with active card pearl 19 with draw-in groove 18 mutual fastenings, the end of card pearl 19 is pressed on the spring 21, the other end cooperates with draw-in groove 18, under the squeezing action of removable cover 14, card pearl 19 can do the motion perpendicular to draw-in groove 18, realizes the opening and closing of removable cover 14, is used to deposit standby blade 3.
Claims (10)
1. new-type cutter that prevents that blade from freely dropping, comprise handle of a knife (1), be articulated in the cutter head (2) on the handle of a knife (1), cutter head (2) is provided with slit (5) that holds blade (3) and the locking mechanism (4) that flexibly connects blade (3), it is characterized in that: be provided with the elasticity fastening device that prevents that blade (3) from freely dropping in the described cutter head (2).
2. the new-type cutter that prevents that blade from freely dropping according to claim 1, it is characterized in that: described elasticity fastening device comprises the groove (10) that is arranged on slit (5) inwall and is arranged at the interior flexure strip (20) of this groove (10) that the warped surface of described flexure strip (20) and blade (3) surface fit.
3. the new-type cutter that prevents that blade from freely dropping according to claim 2, it is characterized in that: described cutter head (2) comprises cutter head assembly (23) and cutter head assembly (24), slit (5) is for being made at the cutter head assembly (23) of cutter head (2) and/or the groove on the cutter head assembly (24), groove (10) is made at the inwall of groove, flexure strip (20) places in the groove (10), and cutter head assembly (23) and cutter head assembly (24) are solidly installed.
4. the new-type cutter that prevents that blade from freely dropping according to claim 3 is characterized in that: connect for welding, riveted joint or securing member between described cutter head assembly (23) and the cutter head assembly (24).
5. the new-type cutter that prevents that blade from freely dropping according to claim 4, it is characterized in that: the location grab (41) that described locking mechanism (4) comprises flexible substrates (42) and is connected this substrate front end, flexible substrates (42) rear end is connected on the cutter head (2); Described blade (3) is provided with the draw-in groove (31) that matches with this location grab.
6. the new-type cutter that prevents that blade from freely dropping according to claim 5 is characterized in that: described flexible substrates (42) is provided with the projection of being convenient to push (6).
7. the new-type cutter that prevents that blade from freely dropping according to claim 6 is characterized in that: described flexible substrates (42) is made with location grab (41) one, or flexible substrates (42) is made separately respectively with location grab (41) again and being connected as one.
8. according to each described new-type cutter that prevents that blade from freely dropping of claim 1 to 7, it is characterized in that: described handle of a knife (1) inboard is provided with the governor motion of regulating cutter head (2) use angle.
9. the new-type cutter that prevents that blade from freely dropping according to claim 8 is characterized in that: described governor motion comprises some bayonet sockets (16) that the elasticity engagement device (15) that is located in the handle of a knife (1) and cutter head (2) rear end are provided with; Described engagement device (15) front end is provided with the claw (17) of fastening in bayonet socket (16), the rear end is fixed on the handle of a knife (1), it is on the circumference at center with bearing pin (14) that described bayonet socket (16) directly is made at cutter head (2), or with the gear teeth of claw (17) fastening on, the described gear teeth are fixed on the cutter head (2).。
10. the new-type cutter that prevents that blade from freely dropping according to claim 9, it is characterized in that: the cavity (13) of adorning some spare blades (3) in described handle of a knife (1) rear portion is provided with, the end face opening part of cavity (13) is provided with the removable cover (14) that is articulated on the handle of a knife (1), and removable cover (14) fastening is on the set elasticity fastening device of handle of a knife (1) (19,21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066607 CN2850854Y (en) | 2005-11-01 | 2005-11-01 | Novel cutter capable of preventing blade free falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066607 CN2850854Y (en) | 2005-11-01 | 2005-11-01 | Novel cutter capable of preventing blade free falling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850854Y true CN2850854Y (en) | 2006-12-27 |
Family
ID=37584821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066607 Expired - Fee Related CN2850854Y (en) | 2005-11-01 | 2005-11-01 | Novel cutter capable of preventing blade free falling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850854Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699933A (en) * | 2012-06-14 | 2012-10-03 | 青岛智多星工贸有限公司 | Multifunctional cutting tool |
| CN104139402A (en) * | 2014-07-23 | 2014-11-12 | 徐杰 | Folding knife capable of being dismounted and mounted rapidly |
| CN105082194A (en) * | 2012-03-31 | 2015-11-25 | 杭州巨星工具有限公司 | Telescopic knife tool with replaceable blade |
| US10046466B2 (en) | 2012-03-31 | 2018-08-14 | Hangzhou Great Star Tools Co., Ltd. | Utility knife with replaceable blade |
-
2005
- 2005-11-01 CN CN 200520066607 patent/CN2850854Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082194A (en) * | 2012-03-31 | 2015-11-25 | 杭州巨星工具有限公司 | Telescopic knife tool with replaceable blade |
| US10046466B2 (en) | 2012-03-31 | 2018-08-14 | Hangzhou Great Star Tools Co., Ltd. | Utility knife with replaceable blade |
| CN102699933A (en) * | 2012-06-14 | 2012-10-03 | 青岛智多星工贸有限公司 | Multifunctional cutting tool |
| CN104139402A (en) * | 2014-07-23 | 2014-11-12 | 徐杰 | Folding knife capable of being dismounted and mounted rapidly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |