CN103707325B - A kind of folding cutter - Google Patents
A kind of folding cutter Download PDFInfo
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- CN103707325B CN103707325B CN201210374256.XA CN201210374256A CN103707325B CN 103707325 B CN103707325 B CN 103707325B CN 201210374256 A CN201210374256 A CN 201210374256A CN 103707325 B CN103707325 B CN 103707325B
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- lock dog
- knife rest
- button
- upper cover
- groove
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Abstract
A kind of folding cutter, comprise housing, it is characterized in that comprising: the afterbody of knife rest to be connected rotationally with housing by a rotary locking mechanism and to realize locking, described rotary locking mechanism comprises a lock dog and a button, described lock dog is connected with the inwall of housing respectively with the outside of button, the projection that described lock dog and the inner side of button are provided with grafting of working in coordination be connected draw-in groove, the afterbody of described knife rest is provided with can for projection and the axis hole being connected draw-in groove and placing, described lock dog and button place to connect from the both sides of axis hole is respectively located at the both sides of knife rest afterbody, projection be connected that formed after draw-in groove grafting can for the pivot of blade holder turns, the afterbody of knife rest and lock dog interface are provided with a locking muscle, described lock dog is provided with the draw-in groove corresponding with locking muscle, spring is provided with between lock dog and inner walls, structure of the present invention is simple, volume is little collapsible, not only can also be able to lock folding for knife rest, portably use all very convenient.
Description
Technical field
The present invention relates to a kind of technical field of cutter, specifically a kind of folding cutter.
Background technology
Cutter is a kind of common hand tools, is commonly used to cutting paper, leather, plastic sheet or hardboard etc.Most cutter is all not folding, and often volume is comparatively large, and therefore also occurred many jackknifes in the market, jackknife is more and more subject to liking of people because volume is little, safe to carry.As the Chinese patent " a kind of foldable knife " that the patent No. is CN200520017346.9, the blade that this foldable knife comprises handle of a knife and can be placed in handle of a knife cavity, and comprise: the first buckling device, is positioned on handle of a knife; Second buckling device, is positioned on blade, and the second buckling device can match with the first buckling device, the relative position when opening with fixing handle of a knife and blade.Preferably, this first buckling device is approximate U-shaped parts, and is fixed on handle of a knife by elastic device, and the second buckling device is the groove of the approximate V-type of blade end side.This jackknife relative to the position of handle of a knife, can use just safer by fixed blade when opening.But this jackknife is not cutter, only has a kind of using function of blade, can not more allowing blade replacement.
Have again the patent No. to be the Chinese patent " a kind of jackknife " of CN200720141452.7, described jackknife comprises: handle of a knife, has the first pivot and the first groove; Cutter head assembly, is connected with handle of a knife pivotable by the first pivot; Wherein, be provided with dismountable blade and locking mechanism in cutter head assembly, blade utilizes locking mechanism to fix.This jackknife can more allowing blade replacement easily and quickly, but its complex structure, assemble cumbersome.
Summary of the invention
Technical problem to be solved by this invention is the folding cutter providing a kind of structure simple, easy to use for the above-mentioned state of the art, and it can lock by cutter setting frame, safety easy to use.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of folding cutter, comprise housing, the storage tank can inserted for knife rest is provided with in housing, it is characterized in that comprising: the afterbody of described knife rest to be connected rotationally with housing by a rotary locking mechanism and to realize locking, described rotary locking mechanism comprises a lock dog and a button, described lock dog is connected with the inwall of housing respectively with the outside of button, the projection that described lock dog and the inner side of button are provided with grafting of working in coordination be connected draw-in groove, the afterbody of described knife rest is provided with can for projection and the axis hole being connected draw-in groove and placing, described lock dog and button place to connect from the both sides of axis hole is respectively located at the both sides of knife rest afterbody, projection be connected that formed after draw-in groove grafting can for the pivot of blade holder turns, the afterbody of knife rest and lock dog interface are provided with a locking muscle, described lock dog is provided with the draw-in groove corresponding with locking muscle, spring is provided with between lock dog and inner walls, lock dog is made to have the trend locked with knife rest all the time.
As improvement, described housing is involuted by upper cover and base, the front inner wall of described base is provided with the mount pad that can snap in for lock dog, the front inner wall of described upper cover is provided with the installing hole can fixed for button, described mount pad is a circular groove, newel is provided with in circular groove, the outside of newel is distributed with several bumping square, described lock dog is the disc matched with circular groove, lock dog is provided with the square opening corresponding with described bumping square, the center that described projection is located at lock dog is corresponding with newel, and the endoporus that can place for newel is provided with at the back side of projection.
As improvement, described spring is nested with and offsets with the outside of lock dog on the newel of mount pad, described locking muscle is the convex tendon communicated with the round diameter length of lock dog, axis hole corresponding to knife rest is 180 degree and is symmetrical arranged, draw-in groove on described lock dog is 3 ~ 4 groups and forms locking gear, and described draw-in groove is the peripheral position being symmetrically distributed in lock dog centered by projection.
As improvement, described button is in step-like convex cap, described connection draw-in groove is a circular projection, be located at the medial center position of button, the end face connecting draw-in groove is provided with the draw-in groove hole can fixed for described projection grafting, the step surface of described button has a breach, the inwall of the installing hole of described upper cover is provided with corresponding flange, described button is embedded in the installing hole of upper cover from the inner side of upper cover, the inwall of its step surface and upper cover offsets, and is fixed with coordinating of flange by the breach on button.
Improve again, it is characterized in that described knife rest is involuted by knife rest upper cover and tool rest bracket, knife rest upper cover and tool rest bracket involutory after again front end form the opening that can stretch out for blade, a switch hole is provided with in the lower end of tool rest bracket, a tool changing switch is provided with in switch hole, the inner side of tool changing switch is provided with the flange fixing with the bayonet fittings on blade, the cutter head of described blade stretches out outside knife rest, by knife rest upper cover and the involutory clamping of tool rest bracket, and fixed by tool changing switch, a back-moving spring is provided with between the inner side of described tool changing switch and knife rest upper cover, tool changing switch is had and outwards ejects the trend with insert retention all the time.
Improve, described lock dog is placed in the side of tool rest bracket again, and described locking muscle is located at the outside of tool rest bracket, and the side of knife rest upper cover is located at by described button, and the position corresponding to button in the outside of knife rest upper cover forms a circular shallow slot.
Further improvement, the middle part inwall of described base is provided with the standby cutter holder that can be used for folding up spare blade, and described standby cutter holder is a stainless steel elastic clip, is connected and fixed by connector with base inner wall.
Further improvement, described base and upper cover involutory after its upper edge form the opening be convenient to spare blade and taken, be connected with one rotationally for cutter lid at opening part.
Improve further again, the sidepiece lower end of described standby cutter lid is provided with the card base with the clamping of described opening phase, the front part sides inwall of described opening is provided with symmetrical convex axle, the end of described standby cutter lid is provided with corresponding runs through axis hole, described standby cutter lid by run through axis hole and convex axle coordinate rotationally involutory on housing along opening part, and to be connected and fixed by card base and housing.
Finally, the inwall of described base is provided with one and is threaded post, covers and is provided with corresponding counterbore, be connected by screw fixing on described, described base and upper cover involutory after form a hanging hole that can be used for hanging at upper rear.
Compared with prior art, the invention has the advantages that: knife rest and housing are connected rotationally by rotary locking mechanism and lock, during use, only need press the button just can rotating turret, and release button will automatically lock, very easy to use and safety; Be provided with spare blade simultaneously, can rapid changing knife be realized.Structure of the present invention is simple, volume is little collapsible, not only can also lock folding for knife rest, portably use all very convenient.
Accompanying drawing explanation
Fig. 1 ~ 2 are the STRUCTURE DECOMPOSITION figure of the embodiment of the present invention;
Fig. 3 is the structural representation of the embodiment of the present invention under knife rest stretches out state;
Fig. 4 is the structural representation of the embodiment of the present invention under knife rest folded state.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in the figure, a kind of cutter, comprise the critical pieces such as housing 18, knife rest 3, blade 4, lock dog 6, button 7 and standby cutter lid 5, housing is involuted with base 2 by the upper cover 1 of aluminium die casting, the storage tank 17 of inserting for knife rest 3 is formed in lower end after upper cover 2 is involutory with base 1, upper along forming an opening 19, standby cutter lid 5 is located at opening part rotationally and housing 18 connects and fixes, lock dog 6 and button 7 are separately positioned on the both sides of knife rest 3 afterbody, form a rotary locking mechanism, the inwall of base 2 is provided with the mount pad 2.1 that can snap in for lock dog 6, the inwall of upper cover 1 is provided with the installing hole 1.1 can fixed for button 7, lock dog 6 is connected with upper cover 1 with base 2 respectively with the outside of button 7, the projection 6.1 being provided with grafting of working in coordination in lock dog 6 and the inner side of button 7 be connected draw-in groove 7.1, the afterbody of knife rest 3 is provided with can for projection 6.1 and the axis hole 3.3 being connected draw-in groove 7.1 and placing, lock dog 6 and button 7 place to connect from the both sides of axis hole 3.3 is respectively located at the both sides of knife rest 3 afterbody, projection 6.1 be connected the pivot being formed after draw-in groove 7.1 grafting and can rotate for knife rest 3, afterbody and lock dog 6 interface of knife rest 3 are provided with a locking muscle 3.23, lock dog 6 is provided with the draw-in groove 6.3 corresponding with locking muscle 3.23, spring 8 is provided with between lock dog 6 and mount pad 2.1 inwall, lock dog 6 is made to have the trend locked with knife rest 3 all the time,
Mount pad 2.1 is a circular groove, newel 2.11 is provided with in circular groove, the outside of newel 2.11 is distributed with 4 bumping squares 2.12, lock dog 6 is the disc matched with circular groove, lock dog 6 is provided with the square opening 6.2 corresponding with bumping square 2.12 with 4, the center that projection 6.1 is located at lock dog 6 is corresponding with newel 2.11, and the endoporus 6.11 that can place for newel 2.11 is provided with at the back side of projection 6.1, such lock dog 6 is just by square opening 6.2 and bumping square 2.12, endoporus 6.11 coordinates and the clamping of mount pad 2.1 phase with newel 2.11, spring 8 is placed on newel 2.11 and offsets with the outside of lock dog 6, locking muscle 3.23 is a convex tendon equal with the round diameter length of lock dog 6, axis hole 3.3 corresponding to knife rest 3 is symmetrical arranged in 180 degree, draw-in groove 6.3 on lock dog 6 is 3 groups symmetrical centered by projection 6.1, is symmetrically distributed in the peripheral position of lock dog 6 respectively, forms three locking gear levels, button 7 is in step-like convex cap, connecting draw-in groove 7.1 is a circular projection, be located at the medial center position of button 7, the end face connecting draw-in groove 7.1 is provided with the draw-in groove hole 7.11 can fixed for projection 6.1 grafting, the step surface of button 7 has a breach 7.2, the inwall of the installing hole 1.1 of upper cover 1 is provided with corresponding flange 1.5, button 7 is embedded in the installing hole of upper cover 1 from the inner side of upper cover 1, the inwall of its step surface and upper cover 1 offsets, the head of button stretches out outside installing hole 1.1, and fixed with coordinating of flange 1.5 by the breach 7.2 on button 7, when needing to rotate, press the button, the elastic force making lock dog 6 overcome spring 8 moves inward and departs from locking muscle 3.23, such knife rest 3 just can rotate, release button 7 after rotateing in place, lock dog 6 outwards ejects under the effect of spring 8, its draw-in groove 6.3 and the locking muscle 3.23 phase clamping on knife rest 3, knife rest 3 is locked,
Knife rest 3 is involuted by knife rest upper cover 3.1 and tool rest bracket 3.2, and the upper and lower both sides, front end of knife rest upper cover 3.1 form one
type projection, the upper and lower both sides, front end of tool rest bracket 3.2 form and coordinate with it
not only type groove, make involutory rear attractive in appearance but also firm like this, the inwall of knife rest upper cover 3.1 is provided with internal thread joint pin 3.12, tool rest bracket 3.2 is provided with corresponding connection counterbore 3.22, be connected and fixed by a self-tapping screw 16, after knife rest upper cover 3.1 is involutory with tool rest bracket 3.2, front end forms the openend can stretched out for blade 4 again, a switch hole 3.21 is provided with in the lower end of tool rest bracket 3.2, a tool changing switch 11 is provided with in switch hole 3.21, the inner side of tool changing switch 11 is provided with and coordinates fixing flange 11.1 with the bayonet socket 4.1 on blade 4, the cutter head of blade 4 stretches out outside knife rest 3, by knife rest upper cover 3.1 and the involutory clamping of tool rest bracket 3.2, and fixed by tool changing switch 11, the transparent blade sleeve 10 that plastics make is equipped with at the head of blade 4, a back-moving spring 12 is provided with between the inner side of tool changing switch 11 and knife rest upper cover 31, tool changing switch 11 is made to have the trend outwards ejecting all the time and lock with blade 4, locking muscle 3.23 is located at the outside of tool rest bracket 3.2, and lock dog 6 is placed in the side of tool rest bracket 3.2, and the outside of knife rest upper cover 3.1 is located at by button, and the position corresponding to button 7 in the outside of knife rest upper cover 3.1 forms a circular shallow slot 3.11,
The middle part inwall of base 2 is provided with the standby cutter holder 9 that can be used for placing spare blade 13, standby cutter holder 9 is a stainless steel elastic clip, its lower end has an aperture 9.1, the inwall of base 2 is provided with corresponding screw 2.3, be connected and fixed by screw 14 and base 2 inwall, such spare blade 13 just folds up standby between cutter holder 9 and the inwall of base 2, and needing takes is, just can take out like a cork as long as take down standby cutter lid 5; The sidepiece lower end of standby cutter lid 5 be provided with housing on along the card base 5.1 of opening phase clamping, the anterior base 2 of opening is provided with symmetrical convex axle 2.4 and 1.4 with the inwall of upper cover 1, the end of standby cutter lid 5 is provided with corresponding runs through axis hole 5.2, standby cutter lid 5 by run through axis hole 5.2 and convex axle 2.4 and 1.4 coordinate rotationally involutory on housing along opening 19 place, and to be connected and fixed by card base 5.1 and housing 18;
The inwall of base 2 is provided with one and is threaded post 2.2, above covers 1 and is provided with corresponding counterbore 1.2, be connected and fixed by screw 15, form a hanging hole that can be used for hanging 1.3 after base 2 is involutory with upper cover 1 at upper rear.
During work, only need press the button 7 knife rests 3 and just can rotate, after rotateing in place, release button 7 just can lock, and after using, presses the button 7 and to be proceeded in housing by knife rest 3 and fold, volume is greatly reduced, and very easy to use; When needing tool changing, as long as press tool changing switch 11, just the opening of blade 4 from knife rest 3 can be taken off, then open standby cutter lid 5, take out spare blade 13, pin tool changing switch 11, spare blade 13 is inserted can realize rapid changing knife from the openend of knife rest.
Claims (8)
1. a folding cutter, comprise housing, the storage tank can inserted for knife rest is provided with in housing, it is characterized in that comprising: the afterbody of described knife rest to be connected rotationally with housing by a rotary locking mechanism and to realize locking, described rotary locking mechanism comprises a lock dog and a button, described lock dog is connected with the inwall of housing respectively with the outside of button, the projection that described lock dog and the inner side of button are provided with grafting of working in coordination be connected draw-in groove, the afterbody of described knife rest is provided with can for projection and the axis hole being connected draw-in groove and placing, described lock dog and button place to connect from the both sides of axis hole is respectively located at the both sides of knife rest afterbody, projection be connected that formed after draw-in groove grafting can for the pivot of blade holder turns, the afterbody of knife rest and lock dog interface are provided with a locking muscle, described lock dog is provided with the draw-in groove corresponding with locking muscle, spring is provided with between lock dog and inner walls, lock dog is made to have the trend locked with knife rest all the time,
Described housing is involuted by the upper cover of aluminium die casting and base, the front inner wall of described base is provided with the mount pad that can snap in for lock dog, the front inner wall of described upper cover is provided with the installing hole can fixed for button, described mount pad is a circular groove, newel is provided with in circular groove, the outside of newel is distributed with several bumping square, described lock dog is the disc matched with circular groove, lock dog is provided with the square opening corresponding with described bumping square, the center that described projection is located at lock dog is corresponding with newel, and the endoporus that can place for newel is provided with at the back side of projection,
Described spring is nested with and offsets with the outside of lock dog on the newel of mount pad, described locking muscle is the convex tendon communicated with the round diameter length of lock dog, axis hole corresponding to knife rest is 180 degree and is symmetrical arranged, draw-in groove on described lock dog is 3 ~ 4 groups and forms locking gear, and described draw-in groove is the peripheral position being symmetrically distributed in lock dog centered by projection.
2. cutter according to claim 1, it is characterized in that described button is in step-like convex cap, described connection draw-in groove is a circular projection, be located at the medial center position of button, the end face connecting draw-in groove is provided with the draw-in groove hole can fixed for described projection grafting, the step surface of described button has a breach, the inwall of the installing hole of described upper cover is provided with corresponding flange, described button is embedded in the installing hole of upper cover from the inner side of upper cover, the inwall of its step surface and upper cover offsets, and is fixed with coordinating of flange by the breach on button.
3. cutter according to claim 1, it is characterized in that described knife rest is involuted by knife rest upper cover and tool rest bracket, knife rest upper cover and tool rest bracket involutory after again front end form the opening that can stretch out for blade, a switch hole is provided with in the lower end of tool rest bracket, a tool changing switch is provided with in switch hole, the inner side of tool changing switch is provided with the flange fixing with the bayonet fittings on blade, the cutter head of described blade stretches out outside knife rest, by knife rest upper cover and the involutory clamping of tool rest bracket, and fixed by tool changing switch, a back-moving spring is provided with between the inner side of described tool changing switch and knife rest upper cover, tool changing switch is had and outwards ejects the trend with insert retention all the time.
4. cutter according to claim 3, it is characterized in that described lock dog is placed in the side of tool rest bracket, described locking muscle is located at the outside of tool rest bracket, and the side of knife rest upper cover is located at by described button, and the position corresponding to button in the outside of knife rest upper cover forms a circular shallow slot.
5. cutter according to claim 1, the middle part inwall that it is characterized in that described base is provided with the standby cutter holder that can be used for folding up spare blade, and described standby cutter holder is a stainless steel elastic clip, is connected and fixed by connector with base inner wall.
6. cutter according to claim 5, it is characterized in that described base and upper cover involutory after its upper edge form the opening be convenient to spare blade and taken, be connected with one rotationally for cutter lid at opening part.
7. cutter according to claim 6, it is characterized in that the sidepiece lower end of described standby cutter lid is provided with the card base with the clamping of described opening phase, the front part sides inwall of described opening is provided with symmetrical convex axle, the end of described standby cutter lid is provided with corresponding runs through axis hole, described standby cutter lid by run through axis hole and convex axle coordinate rotationally involutory on housing along opening part, and to be connected and fixed by card base and housing.
8. the cutter according to the arbitrary claim of claim 1 to 7, it is characterized in that the inwall of described base is provided with one and is threaded post, cover on described and be provided with corresponding counterbore, be connected by screw fixing, described base and upper cover involutory after form a hanging hole that can be used for hanging at upper rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374256.XA CN103707325B (en) | 2012-09-29 | 2012-09-29 | A kind of folding cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374256.XA CN103707325B (en) | 2012-09-29 | 2012-09-29 | A kind of folding cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103707325A CN103707325A (en) | 2014-04-09 |
| CN103707325B true CN103707325B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210374256.XA Active CN103707325B (en) | 2012-09-29 | 2012-09-29 | A kind of folding cutter |
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| CN (1) | CN103707325B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115658A1 (en) * | 2015-01-19 | 2016-07-28 | 杭州巨星工具有限公司 | Power-assisted folding knife |
| CN106472653A (en) * | 2016-11-08 | 2017-03-08 | 梁雪静 | One kind takes Solen strictuss meat special cutter |
| CN108125519A (en) * | 2018-01-31 | 2018-06-08 | 郑红燕 | Foldable townhouse clothes hanger |
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|---|---|---|---|---|
| US4893409A (en) * | 1987-10-06 | 1990-01-16 | Poehlmann Paul W | Folding personal knife |
| US5361497A (en) * | 1993-05-12 | 1994-11-08 | Crawford Kenneth R | Folding knife holder and method for one-handed opening of a folding knife |
| US5502895A (en) * | 1994-12-27 | 1996-04-02 | Lemaire; Denis | Folding blade pocket knife |
| US5964035A (en) * | 1995-01-13 | 1999-10-12 | Poehlmann; Paul W. | Folding knife |
| CN2405720Y (en) * | 1999-07-08 | 2000-11-15 | 谭攸强 | Folding knife using rotation mechanism to close bit thereof |
| CN201432308Y (en) * | 2009-07-09 | 2010-03-31 | 徐卫锋 | Folding knife with easy-to-replace blade |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060272157A1 (en) * | 2005-06-07 | 2006-12-07 | Zeng Min Z | Foldable knife |
| CN202846540U (en) * | 2012-09-29 | 2013-04-03 | 王爱国 | Foldable art knife |
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2012
- 2012-09-29 CN CN201210374256.XA patent/CN103707325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4893409A (en) * | 1987-10-06 | 1990-01-16 | Poehlmann Paul W | Folding personal knife |
| US5361497A (en) * | 1993-05-12 | 1994-11-08 | Crawford Kenneth R | Folding knife holder and method for one-handed opening of a folding knife |
| US5502895A (en) * | 1994-12-27 | 1996-04-02 | Lemaire; Denis | Folding blade pocket knife |
| US5964035A (en) * | 1995-01-13 | 1999-10-12 | Poehlmann; Paul W. | Folding knife |
| CN2405720Y (en) * | 1999-07-08 | 2000-11-15 | 谭攸强 | Folding knife using rotation mechanism to close bit thereof |
| CN201432308Y (en) * | 2009-07-09 | 2010-03-31 | 徐卫锋 | Folding knife with easy-to-replace blade |
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| CN103707325A (en) | 2014-04-09 |
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