CN202572417U - Automatic spring-back knife - Google Patents
Automatic spring-back knife Download PDFInfo
- Publication number
- CN202572417U CN202572417U CN 201220136036 CN201220136036U CN202572417U CN 202572417 U CN202572417 U CN 202572417U CN 201220136036 CN201220136036 CN 201220136036 CN 201220136036 U CN201220136036 U CN 201220136036U CN 202572417 U CN202572417 U CN 202572417U
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- CN
- China
- Prior art keywords
- blade
- push button
- grip part
- elastomeric element
- blade bearing
- 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 an automatic spring-back knife, comprising a holding part, a sliding assembly and a first elastic component, wherein the sliding assembly further comprises a blade base, a sliding push button, and a blade locking device; the elastic component is connected with the sliding assembly and the holding part; the blade locking device is arranged at the front end of the holding part, and is used for locking a blade when the blade entirely extends out from the holding part; when the blade entirely extends out from the holding part, the blade locking device is in a blade locking state; and when the blade cuts an object downwards, the blade locking device is in a blade unlocking state. Compared with the prior art, the automatic spring-back knife can be used for automatically locking the blade before cutting, and performing the automatic reset of the blade after cutting, so that the automatic spring-back knife is simple structure, convenient to use and high in security property.
Description
Technical field
The utility model relates to a kind of cutter, particularly a kind of automatic resilience cutter.
Background technology
Cutter is a kind of hand tools commonly used, can be used for cut ratio like wood, paper, leather, plastic sheet, electric wire or cardboard.Cutter generally all has the shell that is assembled by two and half shells, and shell both simultaneously also was used for holding blade as handle of a knife.Offer a slit on the shell, through the slit push button is installed, push button is used for moving blade.
The Chinese patent grant number is that the utility model patent of CN201271892Y discloses a kind of cutter with automatic contraction blade; It includes a shell; A blade that slidably is contained within the shell; One along the shell push button that stretches out of control blade that can reciprocatingly slide; One is contained within the shell near the first upper casing inner surface and is fixed in the slide plate that push button can slide in the enclosure, and one one end is fixed on the slide plate and the other end is fixed in the slide plate pulling spring on the inner surface of outer cover, and one is contained in the blade bearing that between the slide plate and second upper casing, is used to install blade within the shell; A blade bearing pulling spring, and a blade exchange device.
Above-mentioned utility model realize blade leave cut workpiece after and in the function among the shell of before the user discharges the push broach push button, just can withdrawing automatically, blade can not move forward and backward in cutting process unexpectedly.But also there are some shortcomings in it:
The first, when above-mentioned utility model realized that blade stretches out maximum length, the blocked structure of blade was too complicated, and will realize by means of other complicated structure.
The second, it is poor to make push button get back to the stability of structure of stand-by state automatically.It is through a plurality of ribs are set on slide plate, and corresponding is having the stability of a plurality of chutes when guaranteeing that slide plate slides in housing on the housing, thereby guarantees the stability of push button slip through the stability that slide plate slides.Be equivalent to directly not go the stable of push button slip is provided, but realize that through the third party's slide plate nature can reduce the effect of stability.
The 3rd, the structure that makes push button get back to stand-by state automatically is too complicated.Above-mentioned utility model has increased slide plate, drives push button through slide plate and gets back to stand-by state.But be equivalent to quote new element on the basis of former cutter, push button and cutter shell structure also will and then change, and such way makes this utility model complex structure, and has increased cost.
The 4th, increased the structure that there is no need.Above-mentioned utility model for realize blade and leave after the cut workpiece and the shell of before the user discharges the push broach push button, just can withdrawing automatically among; Increased the blade bearing extension spring, and on cutter shell and blade bearing, made the corresponding structure change in order to dispose this spring.And push button discharges, and it is to accomplish in a step that blade rebounds, and the user's that is more convenient for use.Increased the blade bearing extension spring, unnecessary function promptly is provided, and made and increased cost by this utility model complex structure.
The utility model content
In order to overcome the prior art defective, the utility model provides and a kind ofly spring back to automatically, it can carry out automatically locking blade before cutting fixed, cuts back blade self-return, simple in structure, easy to use, and security performance is high.
The technical scheme of the utility model is following:
A kind of automatic resilience cutter comprises grip part, slide assemblies and first elastomeric element.
Said slide assemblies further comprises blade bearing and slip push button;
Elastomeric element is connected in slide assemblies and grip part;
The blade locking device is arranged on the front end of grip part, is used for when clamping part stretches out fully, locking blade at blade;
Blade is when clamping part stretches out fully, and the blade locking device is in lock knife sheet state; Blade cuts object downwards, and the blade locking device is in release blade state.
Preferably, said grip part is provided with chute, and said slip push button can slide on chute.
Preferably, said blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the front end on blade bearing top, and said blade bearing bottom is provided with at least one projections/grooves;
Holding firmware, it is arranged at the grip part front end, and at least one and aforementioned projections/grooves corresponding groove/convexity is set, and its correspondence is arranged on the blade position that the projections/grooves of blade bearing bottom arrives when stretch out the grip part fully.
Preferably, said blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the downside of clamping part front top, its to should blade blade bearing top front end arrives when clamping part stretches out fully position, said blade bearing bottom is provided with at least one projections/grooves;
Holding firmware, it is arranged at the grip part front end, and at least one and aforementioned projections/grooves corresponding groove/convexity is set, and its correspondence is arranged on the blade position that the projections/grooves of blade bearing bottom arrives when stretch out the grip part fully.
Preferably, said slip push button is provided with the mechanism that snaps in of the said chute that is used to be slidingly connected.
Preferably, said slip push button is fixed on the blade bearing, and snaps in chute through snapping in mechanism; The two ends of said elastomeric element connect slip push button/blade bearing and grip part respectively.
Preferably, said slip push button comprises end face and connected three supporting surfaces: first supporting surface, second supporting surface, the 3rd supporting surface;
First supporting surface and second supporting surface are arranged on the blade bearing, make the same moved further of slip push button and blade bearing; Said the 3rd supporting surface bottom is provided with and snaps in mechanism, and the said mechanism that snaps in snaps in the chute.
Preferably, the said mechanism that snaps in is the Ka Tai that is the L shape.
Preferably, the bottom of said second supporting surface is provided with bearing pin, and an end of said elastomeric element is fixed on the above-mentioned bearing pin, and its other end is fixed on the said grip part.
Preferably, the end face of said slip push button is provided with anti-skidding convexity or lines.
Compared with prior art, the beneficial effect of the utility model is following:
The utility model realized through the blade locking device, and blade can automatically lock when degree of stretching out fully.When cutting object, automatic unlocking, and when blade left object fully, blade bounced back automatically.
The utility model moves forward along the chute drive blade bearing and first elastomeric element through the slip push button, and blade stretches out the grip part, at this moment; Because the effect of second elastomeric element; The blade bearing position is downward, and the convexity of its bottom is stuck on the holding firmware, and blade bearing is locked.
When the needs blade cut thing, some distances were upwards lifted and are moved backward on the blade bearing top, and at this moment the convexity of blade bearing bottom breaks away from the holding firmware on the cutter shell, blade bearing release.After using blade, promptly blade breaks away from cutting object, and push button the blade bearing return along the chute band under the drive of first elastomeric element.In sum, the utility model is simple in structure, and is easy to use, and security performance is high.
Description of drawings
Fig. 1 is the explosive view of the automatic resilience cutter of the utility model specific embodiment;
Fig. 2 is the side view of the utility model specific embodiment slip push button;
Fig. 3 is the sketch map of the automatic resilience cutter of the utility model specific embodiment open mode;
Fig. 4 is the sketch map of the automatic resilience cutter of the utility model specific embodiment closure state.
The specific embodiment
Like Fig. 1 to Fig. 2, a kind of automatic resilience cutter 100 comprises grip part, slide assemblies, first elastomeric element and blade locking device.Said slide assemblies further comprises blade bearing 10 and slip push button 50.Blade bearing 10 is used for ccontaining blade 40.
Said grip part is provided with chute, and said slip push button 50 can slide on chute; Elastomeric element is connected in slide assemblies and grip part.
Said blade locking device is arranged on the front end of grip part, is used for when clamping part stretches out fully, locking blade at blade 40;
Blade is when clamping part stretches out fully, and the blade locking device is in lock knife sheet state; Blade cuts object downwards, and the blade locking device is in release blade state.
In the present embodiment, the blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the front end on blade bearing 10 tops, and blade bearing 10 bottoms are provided with at least one projections/grooves.In the present embodiment, blade bearing 10 bottoms are provided with one protruding 101.
In the present embodiment, first elastomeric element is first spring 70.Second elastomeric element is second spring 80.
In the present embodiment, the grip part comprises upper slitter shell 20 and following cutter shell 30, and upper slitter shell 20 is fixing through lock screw 60 with following cutter shell 30.Upper slitter shell 20 set inside are useful on the bar shaped storage tank 201 of putting spring 70; And the top of upper slitter shell 20 is provided with chute 202 along slip push button 50 directions of motion.During practical implementation, chute 202 also can be arranged on down on the cutter shell, and the utility model is not made qualification to it.
In the present embodiment, slip push button 50 comprises end face 51 and connected three supporting surfaces: first supporting surface 52, second supporting surface 53, the 3rd supporting surface 54.Three supporting surfaces are parallel to each other, together support end face 51.
The upper surface of end face 51 is provided with anti-skidding convexity, is used to increase the frictional force of hand.Its end face 51 also can be provided with anti-skidding lines, and the utility model is not made qualification to it.
Introduce the use of the specific embodiment of the utility model below in detail:
Like Fig. 3, finger according to slip push button 50 along chute 202 to the grip part anterior movements, first spring 70 that is connected with the bearing pin 531 of slip push button 50 is stretched, the release forward of the blade bearing that is fixedly connected with slip push button 50 10 quilts, blade 40 stretches out from the grip part.At this moment, because the effect of second spring 80, blade bearing 10 positions are downward, and the convexity 101 of its bottom is stuck in 231 li of grooves on the holding firmware 23, and blade bearing 10 is locked.
Like Fig. 4, when needs blade 40 cut thing, some distances were upwards lifted and are moved backward on blade bearing 10 tops, the holding firmware 23 that breaks away from the upper slitter shells 20 of the convexity 101 of blade bearing 10 bottoms at this moment, blade bearing 10 releases.After using blade, when promptly blade broke away from cutting object, slip push button 50 had been with blade bearing 10 returns along chute 202 under the drive of first spring 70.Simultaneously, after blade cut completion, the inner power of protruding tool setting shell that being used to of blade bearing 10 sides fixes blade also can make blade bearing that small movements is backward arranged, and the retraction that this power also can blade plays a booster action.
The blade locking device also can adopt following structure except the structure that present embodiment adopted:
The blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the downside of clamping part front top, its to should blade blade bearing top front end arrives when clamping part stretches out fully position, said blade bearing bottom is provided with at least one projections/grooves;
Holding firmware, it is arranged at the grip part front end, and at least one and aforementioned projections/grooves corresponding groove/convexity is set, and its correspondence is arranged on the blade position that the projections/grooves of blade bearing bottom arrives when stretch out the grip part fully.
So the utility model not concrete structure of blade locking device is made qualification.
The utility model preferred embodiment just is used for helping to set forth the utility model.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this utility model yet and is merely the described specific embodiment.Obviously, according to the content of this specification, can do a lot of modifications and variation.These embodiment are chosen and specifically described to this specification, is principle and practical application in order to explain the utility model better, thereby person skilled can be utilized the utility model well under making.The utility model only receives the restriction of claims and four corner and equivalent.More than the disclosed several specific embodiments that are merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (10)
1. an automatic resilience cutter comprises grip part, slide assemblies and first elastomeric element, it is characterized in that,
Said slide assemblies further comprises blade bearing and slip push button;
Elastomeric element is connected in slide assemblies and grip part;
The blade locking device is arranged on the front end of grip part, is used for when clamping part stretches out fully, locking blade at blade;
Blade is when clamping part stretches out fully, and the blade locking device is in lock knife sheet state; Blade cuts object downwards, and the blade locking device is in release blade state.
2. automatic resilience cutter according to claim 1 is characterized in that said grip part is provided with chute, and said slip push button can slide on chute.
3. automatic resilience cutter according to claim 2 is characterized in that said blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the front end on blade bearing top, and said blade bearing bottom is provided with at least one projections/grooves;
Holding firmware, it is arranged at the grip part front end, and at least one and aforementioned projections/grooves corresponding groove/convexity is set, and its correspondence is arranged on the blade position that the projections/grooves of blade bearing bottom arrives when stretch out the grip part fully.
4. automatic resilience cutter according to claim 2 is characterized in that said blade locking device further comprises: second elastomeric element and holding firmware;
Second elastomeric element, it is arranged at the downside of clamping part front top, its to should blade blade bearing top front end arrives when clamping part stretches out fully position, said blade bearing bottom is provided with at least one projections/grooves;
Holding firmware, it is arranged at the grip part front end, and at least one and aforementioned projections/grooves corresponding groove/convexity is set, and its correspondence is arranged on the blade position that the projections/grooves of blade bearing bottom arrives when stretch out the grip part fully.
5. according to claim 3 or 4 described automatic resilience cuttves, it is characterized in that said slip push button is provided with the mechanism that snaps in of the said chute that is used to be slidingly connected.
6. automatic resilience cutter according to claim 5 is characterized in that said slip push button is fixed on the blade bearing, and snaps in chute through snapping in mechanism; The two ends of said elastomeric element connect slip push button/blade bearing and grip part respectively.
7. automatic resilience cutter according to claim 6 is characterized in that, said slip push button comprises end face and connected three supporting surfaces: first supporting surface, second supporting surface, the 3rd supporting surface;
First supporting surface and second supporting surface are arranged on the blade bearing, make the same moved further of slip push button and blade bearing; Said the 3rd supporting surface bottom is provided with and snaps in mechanism, and the said mechanism that snaps in snaps in the chute.
8. automatic resilience cutter according to claim 7 is characterized in that, the said mechanism that snaps in is the Ka Tai that is the L shape.
9. automatic resilience cutter according to claim 7 is characterized in that the bottom of said second supporting surface is provided with bearing pin, and an end of said elastomeric element is fixed on the above-mentioned bearing pin, and its other end is fixed on the said grip part.
10. automatic resilience cutter according to claim 7 is characterized in that the end face of said slip push button is provided with anti-skidding convexity or lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136036 CN202572417U (en) | 2012-03-31 | 2012-03-31 | Automatic spring-back knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136036 CN202572417U (en) | 2012-03-31 | 2012-03-31 | Automatic spring-back knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202572417U true CN202572417U (en) | 2012-12-05 |
Family
ID=47241868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220136036 Expired - Fee Related CN202572417U (en) | 2012-03-31 | 2012-03-31 | Automatic spring-back knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202572417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498595A (en) * | 2017-10-12 | 2017-12-22 | 苏州毕方鸟服饰有限公司 | Scissors tweezer |
-
2012
- 2012-03-31 CN CN 201220136036 patent/CN202572417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498595A (en) * | 2017-10-12 | 2017-12-22 | 苏州毕方鸟服饰有限公司 | Scissors tweezer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20180331 |