CN201357417Y - Locking mechanism of clasp knife - Google Patents
Locking mechanism of clasp knife Download PDFInfo
- Publication number
- CN201357417Y CN201357417Y CNU2009200523032U CN200920052303U CN201357417Y CN 201357417 Y CN201357417 Y CN 201357417Y CN U2009200523032 U CNU2009200523032 U CN U2009200523032U CN 200920052303 U CN200920052303 U CN 200920052303U CN 201357417 Y CN201357417 Y CN 201357417Y
- Authority
- CN
- China
- Prior art keywords
- cutter head
- slide block
- knife
- locking mechanism
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a locking mechanism of a clasp knife, which comprises a knife handle, a knife head and a pin shaft for pivotally connecting the knife handle with the knife head. A slide block is arranged in the knife handle; the front end of the slide block is fixedly clamped with the tail part of the knife head; and an elastic reset element is arranged between the rear end of the slide block and the knife handle. When the locking mechanism is arranged on the knife head, the knife head can be unlocked by pushing the slide block backwards, thereby shutting the knife head; when the knife head is open, the slide block is pushed by means of the cambered surface at the tail end of the knife head; and when the knife head is opened to the right position, the slide block is reset under the action of a spring, thereby locking the knife head again. The knife head locking mechanism has the advantages of simple structure, safety, reliability and convenient use.
Description
Technical field
The utility model relates to a kind of locking mechanism of five metals cutter, particularly a kind of jackknife of daily life.
Technical background
Existing cutter generally has two kinds, and a kind of is that cutter head and handle of a knife are the integral structures that is fixed together, and another kind is that cutter head can fold the movable syndeton in handle of a knife.And movable syndeton has the folding structure that folds in handle of a knife (as present many jackknifes) of cutter head, also having a kind of is that cutter head integral body is retracted into the structure (as art designing's paper knife) in the handle of a knife backward, and therefore these folding retracting structures more complicated all needs a kind of simple in structure and safe and reliable locking mechanism that is used for jackknife.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of locking mechanism that is used for the jackknife cutter head simple in structure, safe and reliable, easy to use is provided.
Another technical problem to be solved in the utility model provides a kind of blade of can realizing changing easily, guarantees the connection reliability of blade again, and can prevent the unexpected blade latch-up structure of opening of blade lock.
The technical scheme of the locking mechanism of the utility model jackknife is: a kind of locking mechanism of jackknife, comprise handle of a knife, cutter head, articulate the bearing pin of handle of a knife and cutter head, it is characterized in that: be provided with slide block in the described handle of a knife, the front end of described slide block and the mutual fastening of the afterbody of cutter head are provided with elastic reset member between the rear end of slide block and the handle of a knife.
The both sides of described slide block are provided with lug, and the sidewall of described handle of a knife is provided with and matches with lug and hold the positioning and guiding groove that slides before and after the slide block.
The part of described cutter head afterbody and the mutual fastening of slide block is the boss that is located at cutter head afterbody the latter half, extends back, and the upper surface of boss is the plane, when cutter head opens and uses, and the mutual fastening in the lower surface of slide block and the upper surface of boss.
Described elastic reset member is a back-moving spring, and one of them on described slide block and the handle of a knife or both are provided with the spring eye of this spring of location.
The upper surface of described slide block exceeds the upper surface of handle of a knife, and the upper surface of slide block is provided with antislip cog.
The end face that constitutes the cutter head end on the described boss is a cambered surface.
As further improvement of the utility model, described cutter head is provided with blade and blade lock, and the front end of cutter head is provided with the slit of installing blade, and the back of cutter head is provided with the slit of installing blade lock, these two slits formation cavity that is interconnected in cutter head inside; Described blade is provided with bayonet socket, and the front end of blade lock is provided with the handle of trip and release, and blade lock hinge is contained in the slit, and under normal conditions, described trip fastening is on bayonet socket.
The middle part of described blade lock is provided with through hole, and position corresponding with this through hole on the described cutter head is provided with bearing pin, and the blade lock is contained on the cutter head by this bearing pin hinge.
Be provided with the elastomeric element of the usefulness that resets in the cavity of described cutter head, an end of this elastomeric element contacts with blade lock end.
In sum, the utility model promotes slide block backward and can remove locking to cutter head in use, folds cutter head.When opening cutter head, rely on the cambered surface of cutter head end to promote slide block, open when putting in place when cutter head, slide block resets under the effect of spring, locks cutter head again.This cutter head locking mechanism is simple in structure, safe and reliable, easy to use.Cutter in addition, flexure strip directly is made in wherein on a slice cutter head sheet, forms groove by punching press or cutting at the periphery of flexure strip, makes flexure strip can automatically reset after the distortion under the effect of external force.Projection is also made with the flexure strip integrated punching simultaneously.This integral structure has been simplified the structure of existing blade locking device greatly.And, the projection of locking blade is arranged to wedge shape, when blade is installed, the front end of blade can push wedge shaped projection, when the draw-in groove of blade is corresponding with wedge shaped projection, wedge shaped projection under the effect of flexure strip fastening in draw-in groove, and the state that locks mutually of maintenance and blade.Therefore when blade is installed, do not need manually to open in advance the blade lock, make the installation of blade simple, quick.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Fig. 1 is the front view of the utility model jackknife;
Fig. 2 removes the view of the centre cutter head sheet and the second cutter head sheet for Fig. 1;
Fig. 3 is the view of the first cutter head sheet;
Fig. 4 is the view of middle cutter head sheet;
Fig. 5 is the view of the second cutter head sheet;
Fig. 6 plants the right side view of slide block for Fig. 3.
The specific embodiment
Jackknife of the present utility model shown in accompanying drawing 1,2,6, comprise handle of a knife 1, be articulated in cutter head 2 on the handle of a knife 1 by handle of a knife axle 13, in handle of a knife 1, be provided with slide block 9, the both sides of slide block 9 are provided with lug 91, are provided with to match with lug 91 and hold the positioning and guiding groove 15 that slides in slide block 9 front and back on the sidewall of handle of a knife 1.The mutual fastening of the afterbody of the front end of slide block 9 and cutter head 2 is provided with elastic reset spring 72 between the rear end of slide block 9 and the handle of a knife 1, all is provided with the spring eye 92,16 of location this back-moving spring 9a on slide block 9 and the handle of a knife 1.In addition, also be provided with bearing pin 10 on handle of a knife 1, when cutter head 2 was opened, the mutual fastening in top of bearing pin 10 and cutter head 2 ends prevented that cutter head 2 from use reversing.
Wherein, be arranged on the boss 25 of part for extending back of cutter head 2 afterbodys and slide block 9 mutual fastenings, the mutual fastening in upper surface of the lower surface of slide block 9 and boss 25 from cutter head 2 afterbody the latter halfs.The end face that constitutes cutter head 1 end on the boss 25 is a cambered surface 26.
In addition, operation for convenience, the upper surface of slide block 9 exceeds the upper surface of handle of a knife 1, and the upper surface of slide block is provided with antislip cog 93.
When amounting to cutter head 2, promote slide block 9 backward and can remove locking cutter head 2, fold cutter head 2.When opening cutter head 2, rely on the cambered surface 26 of cutter head 2 ends to promote slide blocks 9, open when putting in place when cutter head 2, slide block 9 resets under the effect of back-moving spring 9a, locks cutter head 2 again.This cutter head locking mechanism is simple in structure, safe and reliable, easy to use.
Cutter head 2 comprises the cutter head of being made up of the first cutter head sheet 21, the second cutter head sheet 22, middle cutter head sheet 25 1, the blade 3 that is provided with draw-in groove 31 shown in accompanying drawing 1 to 5, be provided with consistent with blade 3 shapes, as to hold blade groove 51 with the corresponding position of blade 3 on the middle cutter head sheet 5, and the thickness of middle cutter head sheet 5 is slightly larger than the thickness of blade 3, so this groove 51 forms the insert groove that holds blade 3 on the cutter head 2 with the first cutter head sheet 21, the second cutter head sheet 22.
The first cutter head sheet 21 is provided with flexure strip 6, the flexure strip 6 and the first cutter head sheet 21 are in same plane, flexure strip 6 has link 61 and free end 62, its link 61 and the first cutter head sheet 21 link into an integrated entity, and are provided with groove 23 between the part between link 61 and the free end 62 and the first cutter head sheet 21; The position corresponding with the draw-in groove 31 of blade 3 is provided with the projection 63 suitable with draw-in groove 31 on the flexure strip 6, and under normal conditions, these projection 63 fastenings are in the draw-in groove 31 of blade 3.Wherein, these projection 63 direct wedge shaped projection that are stamped to form by the back side of flexure strip 6, and the bevel direction of this wedge shaped projection is protruding gradually in insert groove along the direction of insertion of blade 3.Therefore when blade 3 was installed, the front end of blade 3 can push the projection 63 of wedge shape, when the draw-in groove 31 of blade 3 and projection 63 are corresponding, the projection 63 of wedge shape automatically in fastening under the effect of flexure strip 6 in draw-in groove 31, and maintenance and the blade 3 mutual states that lock.Therefore when blade 3 is installed, do not need manually to open in advance the blade lock, make the installation of blade simple, quick.In addition, flanging 64, the second cutter head sheets 22 that are provided with towards the second cutter head sheet 22 of the free end 62 of flexure strip 6 are provided with the breach 24 that holds this flanging 64.When needs were opened the blade lock, the flanging 64 that promotes flexure strip 6 from this breach 24 got final product.
Because blade 3 is very sharp, for prevent blade 3 open and the withdrawal process in the user is caused unexpected injury, therefore the front end at blade 3 is connected with the blade cover 12 that entangles blade 3 exposed parts.The profile of this blade cover 12 is consistent with blade 3 exposed parts, makes with plastic material, be provided with in its side one with the suitable slit of blade 3 thickness, be used for directly entangling blade 3, and can be retracted in the handle of a knife 1 with cutter head 2 one.
Claims (10)
1. the locking mechanism of a jackknife, comprise handle of a knife (1), cutter head (2), articulate the bearing pin (14) of handle of a knife (1) and cutter head (2), it is characterized in that: be provided with slide block (9) in the described handle of a knife (1), the mutual fastening of afterbody of the front end of described slide block (9) and cutter head (2) is provided with elastic reset member between the rear end of slide block (9) and the handle of a knife (1).
2. according to the locking mechanism of the described jackknife of claim 1, it is characterized in that: the both sides of described slide block (9) are provided with lug (91), and the sidewall of described handle of a knife (1) is provided with and matches with lug (91) and hold the positioning and guiding groove (15) that slides before and after the slide block (9).
3. according to the locking mechanism of claim 1 or 2 described jackknifes, it is characterized in that: the part of described cutter head (2) afterbody and the mutual fastening of slide block is the boss (25) that is located at cutter head afterbody the latter half, extends back, the upper surface of boss (25) is the plane, when cutter head opens and uses, the mutual fastening in the lower surface of slide block and the upper surface of boss.
4. the locking mechanism of jackknife according to claim 3, it is characterized in that: described elastic reset member is back-moving spring (9a), one of them on described slide block and the handle of a knife or both are provided with the spring eye of this spring of location.
5. the locking mechanism of jackknife according to claim 3, it is characterized in that: the upper surface of described slide block (9) exceeds the upper surface of handle of a knife (1).
6. the locking mechanism of jackknife according to claim 5, it is characterized in that: the upper surface of described slide block is provided with antislip cog (93).
7. the locking mechanism of jackknife according to claim 3 is characterized in that: it is cambered surface (26) that described boss (25) is gone up the end face that constitutes the cutter head end.
8. the locking mechanism of jackknife according to claim 3, it is characterized in that: described cutter head (2) is provided with the blade (3) of band draw-in groove (31), described cutter head (2) comprises the first cutter head sheet (21) and the second cutter head sheet (22) at least, and be arranged on the insert groove that holds blade (3) between the two, the first cutter head sheet (21) is provided with flexure strip (6), the flexure strip (6) and the first cutter head sheet (21) are in same plane, flexure strip (6) has link (61) and free end (62), its link and the first cutter head sheet link into an integrated entity, and are provided with groove (23) between the part between link and the free end and the first cutter head sheet; The position corresponding with the draw-in groove of blade is provided with the projection suitable with draw-in groove (63) on the flexure strip, and under normal conditions, this projection (63) fastening is in the draw-in groove (31) of blade.
9. the locking mechanism of jackknife according to claim 8, it is characterized in that: the free end of described flexure strip (6) is provided with the flanging (64) towards the second cutter head sheet, and the second cutter head sheet (22) is provided with the breach (24) that holds this flanging.
10. the locking mechanism of jackknife according to claim 8 is characterized in that: described projection (63) is wedge shaped projection, and this wedge shaped projection direction is set for along the direction of insertion of blade (3) projection gradually in insert groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200523032U CN201357417Y (en) | 2009-03-10 | 2009-03-10 | Locking mechanism of clasp knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200523032U CN201357417Y (en) | 2009-03-10 | 2009-03-10 | Locking mechanism of clasp knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357417Y true CN201357417Y (en) | 2009-12-09 |
Family
ID=41423178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200523032U Expired - Fee Related CN201357417Y (en) | 2009-03-10 | 2009-03-10 | Locking mechanism of clasp knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357417Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756384A (en) * | 2012-06-28 | 2012-10-31 | 杭州巨星科技股份有限公司 | Practical knife with tool magazine |
| US8959779B2 (en) | 2010-05-10 | 2015-02-24 | Kunjek Handtools & Hardware Co., Ltd. | Multi-angle positioned foldable knife |
| CN107031815A (en) * | 2015-12-25 | 2017-08-11 | 北京臻迪机器人有限公司 | Unmanned plane horn locking tripper and unmanned plane |
| CN107479423A (en) * | 2017-09-14 | 2017-12-15 | 厦门曦然科技有限公司 | Engagement type tumbler folding control device and control method |
| US10179416B2 (en) | 2012-06-28 | 2019-01-15 | Hangzhou Great Star Tools Co., Ltd | Utility knife |
-
2009
- 2009-03-10 CN CNU2009200523032U patent/CN201357417Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8959779B2 (en) | 2010-05-10 | 2015-02-24 | Kunjek Handtools & Hardware Co., Ltd. | Multi-angle positioned foldable knife |
| CN102756384A (en) * | 2012-06-28 | 2012-10-31 | 杭州巨星科技股份有限公司 | Practical knife with tool magazine |
| CN102756384B (en) * | 2012-06-28 | 2015-07-08 | 杭州巨星科技股份有限公司 | Practical knife with tool magazine |
| US10179416B2 (en) | 2012-06-28 | 2019-01-15 | Hangzhou Great Star Tools Co., Ltd | Utility knife |
| CN107031815A (en) * | 2015-12-25 | 2017-08-11 | 北京臻迪机器人有限公司 | Unmanned plane horn locking tripper and unmanned plane |
| CN107479423A (en) * | 2017-09-14 | 2017-12-15 | 厦门曦然科技有限公司 | Engagement type tumbler folding control device and control method |
| CN107479423B (en) * | 2017-09-14 | 2019-08-23 | 厦门曦然科技有限公司 | Engagement type rotating member folding control device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20170310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |