CN1050108C

CN1050108C - Can opener

Info

Publication number: CN1050108C
Application number: CN93106776A
Authority: CN
Inventors: 古康华
Original assignee: WANJIN FOREIGN FIRM
Current assignee: WANJIN FOREIGN FIRM
Priority date: 1992-06-09
Filing date: 1993-06-05
Publication date: 2000-03-08
Anticipated expiration: 2013-06-05
Also published as: DE69302436D1; EP0574214A1; AU670277B2; CN1081996A; GB9212170D0; EP0574214B1; HK1008007A1; AU3989293A; CA2097893A1; DE69302436T2

Abstract

The invention relates to a hand operated can opener of the type in which a can is opened by cutting through an outer part of the rim joining the lid with the main body of the can, the opener having support means to which a cutter wheel engageable with the rim of the can and a drive wheel arranged to grip the rim on an opposed side to said cutter wheel are rotatably mounted, the drive wheel being connected to a handle for manual rotation to drive the drive wheel and cutter wheel around the can rim and wherein the drive wheel is rotatably mounted on the support means by means of at least one rolling bearing, preferably a needle roller bearing.

Description

Handheld tin-opener

The present invention relates to a kind of handheld tin-opener.

US4734986, US4782594, US2255641, US4251917, US3094776, US2196182, the US5121546 and the inventor by Patent publish one class tin-openers such as PCT publication number WO90,05108 derivative US5181322, it can be along the link external opening can at edge, place of can body and can ends.

This tin-opener, its drive wheel and slitter wheel are stuck on the can edge, and drive wheel connects with the rotation of user's operating handle.The rotation of drive wheel is directed at this and takes turns along the can edge and move, and slitter wheel cuts the can outer rim simultaneously, and makes can ends with the other parts of can separately.

The weak point of US518132 and disclosed this class tin-opener of other documents is to guarantee to open and make bottle opener non-slip when blocking the can edge, need apply sizable power between slitter wheel and drive wheel.This means and to be difficult to use this class bottle opener those old men or strength deficiency person such as weak.In US5181322, the inventor proposes drive wheel and metal axle sleeve S. A. knot, this axle sleeve is supported by the tin-opener body, its outside cooperates at the place, two ends of closing on axle sleeve with the inner face of axle sleeve, purpose is to make described axle and those middle parts produce swivel bearing, between the inner face of the outside of axle and axle sleeve, produce a gap,, make when spool rotating to reduce friction with respect to axle sleeve with contacting of axle and axle sleeve.Yet the contriver finds that this design do not deal with problems, and this tin-opener is still not handy.

The objective of the invention is to overcome the deficiencies in the prior art, a kind of manual tin-opener is provided, this bottle opener has the bearing set that is fastened on the drive wheel rotation connection at can edge, described slitter wheel opposite with the slitter wheel of can edge junction and, described drive wheel connects with the drive wheel that centers on the can edge and the manual rotary handle of slitter wheel, and wherein at least one antifriction-bearing box of beam warp rotatably connects with respect to described bearing set.

In other words, the present invention relates to a kind of manually operated tin-opener, the described can of external opening at edge through cutting the lid that links with the can main body, described bottle opener has with the slitter wheel and of can edge junction together and is fastened on the bearing set that the rotation of the drive wheel at can edge, described slitter wheel opposite connects, described drive wheel connects around the drive wheel of can edge walking and the manual rotary handle of slitter wheel with driving, and wherein drive wheel connects with described bearing set rotation through at least one antifriction-bearing box.

Described bearing set comprises the integrated handle of body a pair of and mutual pivot joint around the socket, drive wheel with the axle that passes socket, and the bearing between socket and axle, and the socket with coupling part that bearing is housed, to body wide connection part and the bearing that is contained in this cavity to the definite cavity that prolongs.

The inventor finds to adopt antifriction-bearing box can reduce the difficulty of using tin-opener widely.

Preferred antifriction-bearing box is the needle bearing that its length equals its label at least, maybe can comprise two antifriction-bearing boxs in an intrinsic axle sleeve placed apart.

That is to say, the present invention proposes a kind of handheld tin-opener, wherein, open a tin by means of cutting the outside, edge, this edge is that flange is connected with the main body of can, it is body that this bottle opener has bearing set, slitter wheel on bearing set can with the edge bridle joint of can and the drive wheel that is arranged to clamped edge at described slitter wheel opposite side, this drive wheel is rotatably mounted, and drive wheel is connected with turning handle, and this turning handle is used for rotating and the driving drive wheel with hand, and make slitter wheel around the can edge, it is characterized in that by means of at least one needle bearing, drive wheel is installed in rotation on the bearing set.

Wherein, by means of the first and second described needle bearings, drive wheel is installed with respect to bearing set.

Wherein, first and second needle bearings are to be encapsulated in the single axle sleeve.

Wherein, separator, promptly sealing member is arranged between first and second needle bearings.

Wherein, the axial length of bearing equals its diameter at least.

Wherein, bearing set comprises a pair of integrally formed with body part, center on the handle that socket pivots mutually, drive wheel has the axle that passes socket, bearing is arranged between socket and the axle, socket has installation portion, and bearing promptly is arranged in the installation portion, and the depression that installation portion defines extends into the width and the bearing that are roughly body part and is arranged in the described depression.

Wherein, break bar is installed on the axle, and axle is connected on one of body part, and axle has end cap and the spring washer between end cap and slitter wheel.

Below with reference to the nearly step explanation of accompanying drawing technical solution of the present invention, wherein,

Fig. 1 is an embodiment of the invention sectility structure side-looking cut-away view.

Fig. 2 is the partial enlarged drawing of Fig. 1, the state of visible cutting knife and drive wheel and can interlock.

Fig. 3 a is the drive wheel of Fig. 1 and the cutaway view of axle, and

Fig. 3 b is along the cut-away view of a-a line among Fig. 3 a.

Fig. 4 is the cutaway view of Fig. 3 a, and it shows the second embodiment of the present invention.

Fig. 1 is the view of Figure 12 in the US5181322, but embodiments of the invention are shown.

Detailed using method about tin-opener embodiment of the present invention is open in US5181322, and the present invention can be with reference to this patent.

As shown in Figure 1, tin-opener 10 comprises a bearing set that is formed by a pair of handle, and this handle and body part 12 and 14 difference are integrally formed.Body part 12,14 articulates mutually around socket 13, and socket 13 becomes an integral body with body part 12, and extends to the corresponding perforate 15 of body 14 parts.

Axle 16 passes socket 13, one end of described drive wheel 18 forms axle, and this takes turns 18 has analogues such as sawtooth in its outside, when rotation, make it catch the inner face at can 22 (see figure 2) edges 20 firmly, drive wheel 18 will make tin-opener round can 22 walkings of desiring to open.

At the relative other end of the axle 16 of drive wheel 18, turning handle 19 can manually rotate drive wheel 18.Packing ring 21 is between turning handle 19 and body 12.

Upright turning cylinder 29 links to each other with body part 14, and slitter wheel 30 rotatably connects with turning cylinder 29.Slitter wheel 30 comprises an annular cutting blade 32 and an integral ring-shaped bead 34.The outer cylinder 36 of bead is bigger slightly than the diameter of cutting blade 32, and cylinder 36 can bear against on the upright sidewall 38 of can 22 like this.

Slitter wheel 30 is fixed on the axle 29 through adding an end cap 40 rivetings or screwing tight.Be provided with the packing ring 42 that an elastomeric material is made between end cap 40 and the wheel 30, packing ring 41 is contained in the another side of slitter wheel 30.

The axis 42 of the axis 40 skew sockets 13 of axle 16.Like this, body part 12 around the socket pivot joint, handle separates during 14 pivots, and drive wheel 18 is removed slitter wheel 30, thereby drive wheel can be stuck on the edge of the can of desiring to open, on the contrary, when handle is incorporated into a time-out, the user firmly holds with hand, and drive wheel 18 shifts near slitter wheel 30, bead 34 be stuck on the can edge the position as shown in Figure 2, wherein cutoff edge is stuck on the edge of can once folder through slitter wheel 30 and drive wheel 18.Rotation turning handle 19 makes the promptly inner face at can edge of drive wheel 18, therefore, forces described slitter wheel around the can limit, can cut the can edge by the method for operation described in the US5181322 (WO90,05108).

For make slitter wheel 30 and drive wheel 18 mutually with the can edge keep in touch firmly essential, thereby between axle 16 and socket basic friction of generation.The embodiment of the invention shown in Fig. 1 and Fig. 3 a, at axle 16 and 12 of body parts an antifriction-bearing box 50 is installed, so that a friction-free in fact bearing arrangement to be provided, its centre bearer 50 has the needle roller of many axial array of an axle sleeve 52 (housing) and axle sleeve (casing) 52 length, so that friction-free in fact bearing arrangement to be provided.Preferably, the axial length of antifriction-bearing box equals its radial width at least, and therefore the width of as many as body 12 parts of the axial length of bearing 50 provides a kind of comprehensive supporting.

As shown in Figure 3, according to second embodiment of the invention, axle sleeve 52 (housing) cooperates with first and second antifriction-bearing boxs 56,58 of the opposite end that is positioned at axle sleeve 52 (casing), and is furnished with a sealing member 60 that is contained between the bearing 56,58.

The inventor finds to adopt antifriction-bearing box, can improve the operability of this device widely as needle bearing 50, and to the greatest extent known to the contriver manually cooking utensils yet there are no the people in the past and adopted bearing arrangement.

Needn't adopt further feature to improve, change and replacement some feature of the present invention and disclosed technology, but with spirit of the present invention and scope, the claim below widely explaining.

Claims

1, a kind of handheld tin-opener (10), wherein, open a tin by means of cutting the outside, edge, this edge is that flange is connected with the main body of can, it is body (12 that this bottle opener has bearing set, 14), slitter wheel on bearing set (30) can with the edge bridle joint of can and the drive wheel (18) that is arranged to clamped edge at described slitter wheel (30) opposite side, this drive wheel (18) is rotatably mounted, drive wheel (18) is connected with turning handle (19), this turning handle is used for rotating and driving drive wheel (18) with hand, and make slitter wheel (30) around the can edge, it is characterized in that, be installed in rotation on the bearing set by means of at least one needle bearing (50) drive wheel (18).

2, tin-opener according to claim 1 is characterized in that by means of first (56) and second (58) the described needle bearing, drive wheel (18) is installed with respect to bearing set.

3, as tin-opener as described in the claim 2, it is characterized in that first and second needle bearings (56,58) are to be encapsulated in the single axle sleeve (52).

4, as tin-opener as described in claim 2 or 3, it is characterized in that, separator, promptly sealing member (60) is arranged between first and second needle bearings (56,58).

5, as tin-opener as described in claim 1 or 2 or 3, it is characterized in that the axial length of bearing (50) equals its nominal diameter at least.

6, as tin-opener as described in the claim 4, it is characterized in that the axial length of bearing (50) equals its nominal diameter at least.

7, as tin-opener as described in claim 1 or 2 or 3 or 6, it is characterized in that, bearing set (12,14) comprises a pair of integrally formed with body part, center on the handle that socket (13) pivots mutually, drive wheel (18) has the axle (16) that passes socket (13), bearing (50) is arranged between socket (13) and the axle (16), socket (13) has installation portion, bearing (50) promptly is arranged in the installation portion, and the depression that installation portion defines extends into the width and the bearing that are roughly body part and is arranged in the described depression.

8, as tin-opener as described in the claim 4, it is characterized in that, bearing set (12,14) comprises a pair of integrally formed with body part, center on the handle that socket (13) pivots mutually, drive wheel (18) has the axle (16) that passes socket (13), bearing (50) is arranged between socket (13) and the axle (16), socket (13) has installation portion, bearing (50) promptly is arranged in the installation portion, and the depression that installation portion defines extends into the width and the bearing that are roughly body part and is arranged in the described depression.

9, as tin-opener as described in the claim 5, it is characterized in that, bearing set (12,14) comprises a pair of integrally formed with body part, center on the handle that socket (13) pivots mutually, drive wheel (18) has the axle (16) that passes socket (13), bearing (50) is arranged between socket (13) and the axle (16), socket (13) has installation portion, bearing (50) promptly is arranged in the installation portion, and the depression that installation portion defines extends into the width and the bearing that are roughly body part and is arranged in the described depression.

As tin-opener as described in the claim 7, it is characterized in that 10, slitter wheel (30) is installed on the axle (29), axle is connected on one of body part (14), and axle (29) has end cap (40) and the spring washer (42) between end cap and slitter wheel (30).

As tin-opener as described in claim 8 or 9, it is characterized in that 11, slitter wheel (30) is installed on the axle (29), axle is connected on one of body part (14), and axle (29) has end cap (40) and the spring washer (42) between end cap and slitter wheel (30).