CN1066125C - Can opener - Google Patents
Can opener Download PDFInfo
- Publication number
- CN1066125C CN1066125C CN 95197836 CN95197836A CN1066125C CN 1066125 C CN1066125 C CN 1066125C CN 95197836 CN95197836 CN 95197836 CN 95197836 A CN95197836 A CN 95197836A CN 1066125 C CN1066125 C CN 1066125C
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- China
- Prior art keywords
- jar
- edge
- wheel
- shearing
- drive wheel
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- 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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- Devices For Opening Bottles Or Cans (AREA)
Abstract
The present invention relates to a can opener which is provided with two body parts (1, 3) rotating correspondingly, wherein one body part is provided with a rotary shearing wheel (7), and the other body part is provided with a rotary driving wheel (12); the axial lines of the two wheels are parallel; the edge of a can (C) is arranged between the two wheels of the opener; when the driving wheel is rotated, the opener rotates along the can; at the time, the shearing wheel cuts a circumferential notch; during cutting, the shape of the driving wheel (12) can deform the edge of the can; the shearing wheel (7) is provided with parts (10c, 10d) with gradient in the position close to shearing edges (10a, 10b); the parts with gradient are in contact with the outside of the edge below the shearing points, and acting force exists in the direction opposite to that of the driving wheel (12).
Description
The present invention relates to a kind of Tin opener lid, it can from outside incision can one end form upright have jar end wall and sidewall circumference change the limit part edge and the end wall or the lid of jar cut off.
This tin opener disclosed in European patent bulletin EP-A-169224.Opener comprises that one is equipped with shearing wheel with two base portions of bearing pin bonded assembly, and another is equipped with drive wheel, when using opener the edge of can be opened is between the two-wheeled.Wheel axis is parallel to each other.Cut around the whole periphery of edge even a problem of this opener is an opener, the end wall of cut-out still is difficult to take off.In above-mentioned patent, propose to be provided with to be independent of the device of shearing wheel in order to take off the end wall of cutting.Opener has the hook that gets loose in one embodiment for this reason, has the lever that can make the distortion of can sidewall in another embodiment.
In our International Patent Application WO 92/02445, we point out can and it be taken off easily from jar with the end wall cut-out by the shape of the part of the edge of suitable selection supporting can.
Therefore, the opener that in WO92/02445, has proposed a kind of upright edge that can form at an end of jar from outside incision and end wall is cut off from tank body, edge comprises the repeatedly limit part of the end wall and the sidewall circumference of jar, tin opener comprises two base portions that can relatively rotate installation around an axle, one is equipped with rotating shearing wheel and another is equipped with rotating drive wheel, the axis of wheel is positioned at same vertical plane surface (also parallel with the main shaft of tank body when clipped position) parallel to each other, in use, the edge of jar is placed between the opener two-wheeled, opener rotated around jar when drive wheel rotated, meanwhile shearing wheel cuts out circumferential notch in the outside of jar edge, and the shape of drive wheel can make jar edge distortion and then make the repeatedly limit interlock between jar end wall and the sidewall loosening when shearing wheel is sheared the jar edge.
In order to make a jar edge distortion in use, the part surface of drive wheel preferably engages with the madial wall of edge, and this surface should be greater than the inclination angle of edge with respect to the inclination angle of the vertical axis of jar.
Therefore, the objective of the invention is to propose a kind of tin opener, the change separating effect on limit of end wall that can further improve whereby jar and sidewall interlock.
In order to achieve the above object, the tin opener that the present invention proposes a kind of upright edge that can form at an end of jar by outside incision and end wall and tank body are separated, the jar edge comprises the repeatedly limit part of the end wall and the sidewall circumference of jar, tin opener comprises two base portions that can relatively rotate installation around an axle, rotating shearing wheel is housed for base portion and another base portion is equipped with rotating drive wheel, the two-wheeled axis is positioned at same vertical plane surface (also parallel with the tank body main shaft when clipped position) parallel to each other, edge with jar places between the two-wheeled of opener in use, opener rotated around jar when drive wheel rotated, meanwhile shearing wheel cuts out circumferential notch in the outside of edge, the shape of drive wheel can make jar edge distortion and then make the repeatedly limit interlock between jar end wall and the sidewall loosening when shearing wheel is sheared the jar edge, opener also is provided with bearing set, when bearing set leans against the tank top between drive wheel and the shearing wheel with the edge of jar on 2 separated from one another contact, its improvement is, shearing wheel have be sheared the helix otch that cuts out of wheel below locate the part of the band gradient of bearing pot edge, thereby can keep jar stable, and can be with hand with cut lid by taking off on the tank body.
Advantageously, the cutting head of described shearing wheel be in the vertical plane surface with drive wheel and tank body axis at an angle.This angle is between 5 ° to 12 °.
In a preferred embodiment, described band gradient part is around the whole circumference of shearing wheel.
Preferably, the lower end of band gradient part is flange or the shoulder around wheel, vertical shaft parallel of the outside face of flange or shoulder and shearing wheel.
Advantageously, drive wheel has the part that its surface in use can be adjacent to jar edge inboard, this surface with respect to the inclination angle of the vertical axis of jar greater than the inclination angle of jar edge to this axis.
The rotation of described drive wheel can drive shearing wheel and do passive rotation.
Described shearing wheel can have the annular shear blade body of being made up of two chamfered portions, and intersection, two inclined-planes forms shear blade, and these two chamfered portions are asymmetrical shape.
In a preferred embodiment, the angle of cut of lower bevel part and horizontal surface is between 45 ° to 65 °, and the angle of cut of upper inclined surface part and horizontal surface is less than the angle of cut of lower bevel part with horizontal surface.
The part of band gradient can be connected with flange by one section less band gradient part of short gradient.
Described drive wheel can have and jar contacted frusto-conical portion of edge.
Tin opener according to the present invention's proposition, by changing the shape of shearing wheel, make its have be sheared the helix otch that cuts out of wheel below locate the part of the band gradient of bearing pot edge, thereby can keep the stable of jar, and can be with hand with cut lid by taking off on the tank body, the separating effect on limit thereby end wall that has further improved jar and sidewall interlock change.
By selecting suitable being positioned to shear the shape of locating shearing wheel under the circumference, jar more firmly can be remained on the desired position and undesirable rotation or rotation can not occur.Shearing wheel jar relatively is in offset position, leans against on the better rigidity edge, like this than good on the thin-walled that leans against tank body.
To and narrate embodiments of the invention in conjunction with the accompanying drawings by example below.Accompanying drawing comprises:
Fig. 1 is the backplan of an embodiment of tin opener of the present invention;
Fig. 2 is the section-drawing along X-X line among Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2, is depicted as the detailed structure of the jar edge and the shearing wheel of the present invention that are in clipped position;
Fig. 4 is a partial view embodiment illustrated in fig. 1;
Fig. 5 is the part sectional view along Y-Y line among Fig. 2;
Fig. 6 a is that Fig. 6 b is the part sectional view of jar edge after cutting not by the part sectional view of the jar edge of tin opener incision among Fig. 1-5.
Fig. 6 a is depicted as can C to be opened, and it has the upright edge R along circumference, and edge has towards the top T of top with towards the bottom of below U.Edge R be by the end wall E of jar and jar the circumferential edges of end of the sidewall S part that coincides constitute.
Tin opener shown in the figure can be gripped by hand of user, and it comprises relatively large first base portion 1 and relative less second base portion 3 that has clamping lever part 4 that has handle portion 2 of size.Two base portions 1,3 are respectively casting spares.In the U type dimple of the bottom surface of main body 1, be equipped with screw 6 and be fixed on die cast metal inserts 5 on the main body 1.Connector bushing 5A on the inserts 5 passes two base portions two base portions is linked together in rotating repeatedly dress mode.
Two base portions 1,3 of tin opener can be done between relative off position and open position and relatively rotate, abut against each other at the handle 4 of graphic off position main body 3 and the handle 2 of main body 1, do not having two handles of graphic open position to remove.
Do rotatable the installation on the axle sleeve 9 of shearing wheel 7 in the groove 9A of damascene part 5.Shearing wheel 7 comprises ring-type shear blade body 10 that protrudes groove 9A and the flange 11 that outwards extends bottom.Sword body 10 comprises two inclined-plane 10a and 10b, and as Fig. 3, intersection, two inclined-planes forms shear blade.These two parts are asymmetric, and promptly first half 10a inclination angle is less, and for example the angle with horizontal surface is 5 °, and lower part 10b is relative, and horizontal surface is steeper, and angle is preferably in about 55 ° between 45 °-65 °.It is good and shearing force is minimum that such configuration is proved the durability of shear blade.Also having its effect of inclined-plane 7a on shearing wheel 10a part is to produce a gap between shearing wheel and drive wheel, and this point back also can be described in detail.
Shearing wheel also has the 10c part below sword body portion 10, it to evagination, forms the inclined-plane on away from the direction of shear blade.This section band gradient part 10c is connected with foregoing flange 11 by the short less band gradient part 10d of gradient.
The leaning angle of chamfered portion 10c and shearing wheel longitudinal axis can be between 5 ° to 20 °, and the leaning angle of chamfered portion 10d can be between 25 ° to 35 °.
Flange 11 has the outer ring surface 11a parallel with the shearing wheel longitudinal axis.
Can a jar edge R all be arranged for most of can of consumption at present, about 8 ° to 10 ° of the vertical axis deflection of its medial surface and jar.We find suitably to select the shape of drive wheel frusto-conical portion 17, so that make the crooked or angle bigger than this angle of deflection laterally of jar edge R when shearing, frictional engagement power residual between the jar edge wall of otch both sides can be destroyed.This flecition also can be destroyed glue or similar sealer and jar interior plastics or the similar coating material in jar edge.Thereby the oblique angle of 17 parts should be chosen as at least greater than about 10 °.The maximum inclination angle should make under this angle a crooked jar edge should not cause drive wheel to rotate effort, and this point is even more important, because of tin opener is a type hand.
Frusto-conical portion 17 has rib line 18 makes it have Clamping force.
Consult Fig. 4 and Fig. 5, the bottom surface of base portion 1 be equipped with substantially be the back plate 20 of plane U type, the centre portion 21 of U template be recessed into and perforate is arranged so that foregoing bearing pin 13 therefrom passes.The center that drive wheel 12 is contained in the U type reaches than the more lower slightly position of U template lowest surfaces.
As shown in Figure 4, shearing wheel partly is between two opening arms of U type when base portion is in the closed position, forms a gap d-d to put a jar edge R between two-wheeled.
As shown in Figure 5, back plate 20 has two opposed ends 22 as U type two ends arm.Its edge R is between drive wheel 12 and the shearing wheel 7 when can is put into, and the top that end 22 leans against jar with contact point 23 and 24 is to guarantee lid or the end E of drive wheel axis perpendicular to jar.Contact point on the shearing point both sides has produced the downward pressure of crossing over drive wheel, and this power is illustrated as acting on the antagonistic force F/2 of the power F that makes progress that the balance shear history produces on each contact point in the drawings.
But be appreciated that curvature owing to jar, and the offset d-d between power F and the F/2, jar has the bevelled possibility, shown in arrow A among Fig. 4.The band gradient surface 10c of shearing wheel is close to the undesirable inclination rotation that jar edge can prevent that these factors from causing.Because be adjacent to a little is to lean against on jar edge rather than on the thin-walled of jar, jar can not be out of shape so can stop this inclination to be rotated.Owing to prevented the inclination of jar, jar edge can remain on stable position thereby shear blade can be sheared in correct position, distance edge top.
As shown in the figure, the axis vertical or rotation axis and drive wheel and tank body of shearing wheel is inclined to about 8 ° angle D mutually.
During use, the user at first rotates base portion to open position, and the edge R of jar C is placed gap between drive wheel and the shearing wheel, and promptly blade clearance d-d (Fig. 3) makes two base portions forward graphic closed condition to as using scissors then.
Forward closed condition fully to base portion, the top in shear blade contact and the incision jar edge R outside, frusto-conical portion 17 is supporting edge from the inside face of edge, and simultaneously the band gradient part 10c of shearing point below engages with the outside of edge R and it is applied to the inside power (Fig. 3).Two handle portions involutory plays locking action, and to prevent to act on power on the edge excessive and the horizontal clearance between drive wheel and the shearing wheel remained on fixing distance.
Drive passive shearing wheel when drive wheel 12 rotates, and owing to have the otch that shear blade 10 cuts out the spiral jar edge of incision vertically downward of existing of angle " D " the top margin T of edge upwards to be separated with the bottom of edge R until sword body portion 10a.Shearing wheel is proceeded to shear, and maintenance is parallel with the top of edge, and shear blade 10 can be separated end wall E and sidewall S notching edge in the mode of agricultural ploughshare.Frusto-conical portion 17 applies an outside downward component of force that makes edge R distortion or bending together with shear blade 10 to the jar edge, and the antagonistic force that surperficial 10c applied simultaneously also can strengthen being cut the separating effect of edge.Such power is synthetic can to remain on the jar edge settling position thereby shear blade 10 effectively and can cut off the outer of R and make and be cut part T and upwarp.Then can be with opener by taking off on the can, lid can be taken with hand and to stay bright and clean sheared edge.
Fig. 6 a and Fig. 6 b are depicted as before the unlatching and the contrast of the can after opening.Can know by Fig. 6 b and to see, shear trailing edge and produced appropriate distortion thereby only just end wall E can have been need not to use other accessories by taking off on the tank body with hand.
Claims (11)
1, a kind of upright edge (R) that can form at an end of jar by outside incision and tin opener that end wall and tank body are separated, jar edge (R) comprises the repeatedly limit part of the end wall and the sidewall circumference of jar (C), tin opener comprises two base portions (1 that can relatively rotate installation around an axle, 3), rotating shearing wheel (7) is housed for base portion and another base portion is equipped with rotating drive wheel (12), the two-wheeled axis is positioned at same vertical plane surface (also parallel with the tank body main shaft when clipped position) parallel to each other, in use the edge (R) of jar (C) is placed the two-wheeled (7 of opener, 12) between, opener rotated around jar when drive wheel (12) rotated, meanwhile shearing wheel (7) cuts out circumferential notch in the outside of edge (R), the shape of drive wheel (12) can make a jar edge (R) be out of shape and then make the repeatedly limit interlock between jar end wall and the sidewall loosening when shearing wheel (7) is sheared jar edge (R), opener also is provided with bearing set (20), when bearing set (20) when leaning against the tank top between drive wheel (12) and shearing wheel (7) with the edge (R) of jar (C) last separated from one another two point (23,24) contact, it is characterized in that, shearing wheel (7) have be sheared the helix otch that cuts out of wheel below locate the part (10C) of the band gradient of bearing pot edge, thereby can keep jar stable, and can be with hand with cut lid by taking off on the tank body.
2, tin opener according to claim 1 is characterized in that, the cutting head of shearing wheel (7) be in the vertical plane surface with drive wheel (12) and tank body (C) axis at an angle.
3, tin opener according to claim 2 is characterized in that, this angle is between 5 ° to 12 °.
According to the described tin opener of claim 1,2 or 3, it is characterized in that 4, band gradient part (10C) is around the whole circumference of shearing wheel (7).
5, tin opener according to claim 1 is characterized in that, the lower end of band gradient part (10C) is flange or the shoulder (11) around wheel (7), vertical shaft parallel of the outside face of flange or shoulder and shearing wheel (7).
6, tin opener according to claim 1 is characterized in that, drive wheel (12) has the part (17) that its surface in use can be adjacent to jar edge inboard, this surface with respect to the inclination angle of the vertical axis of jar greater than the inclination angle of jar edge to this axis.
7, tin opener according to claim 1 is characterized in that, the rotation of drive wheel (12) can drive shearing wheel (7) and do passive rotation.
8, tin opener according to claim 1 is characterized in that, shearing wheel (7) has that (intersection, two inclined-planes forms shear blade for 10a, 10b) the annular shear blade body of Zu Chenging, and these two chamfered portions are asymmetrical shape by two chamfered portions.
9, tin opener according to claim 8, it is characterized in that, the angle of cut of lower bevel part (10b) and horizontal surface is between 45 ° to 65 °, and the angle of cut of upper inclined surface part (10a) and horizontal surface is less than the angle of cut of lower bevel part (10b) with horizontal surface.
10, tin opener according to claim 5 is characterized in that, the part (10c) of band gradient is connected with flange (11) by one section less band gradient part (10d) of short gradient.
11, tin opener according to claim 1 is characterized in that, drive wheel (12) has and jar contacted frusto-conical portion of edge (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95197836 CN1066125C (en) | 1995-03-21 | 1995-03-21 | Can opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95197836 CN1066125C (en) | 1995-03-21 | 1995-03-21 | Can opener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1182405A CN1182405A (en) | 1998-05-20 |
| CN1066125C true CN1066125C (en) | 2001-05-23 |
Family
ID=5083382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95197836 Expired - Fee Related CN1066125C (en) | 1995-03-21 | 1995-03-21 | Can opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1066125C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7784190B2 (en) * | 2007-05-22 | 2010-08-31 | Union Lucky Industrial Limited | Can opener |
| CN107934882A (en) * | 2017-12-19 | 2018-04-20 | 湖北康源药业有限公司 | Hood-opening device and rubber ointment production system for rosin bucket |
-
1995
- 1995-03-21 CN CN 95197836 patent/CN1066125C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1182405A (en) | 1998-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |