JPS58171388A - Electric can opener - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a drive wheel capable of rotating a can and a cutter capable of cutting into the lid of the can, the cutter being capable of cutting into the lid of the can. The present invention relates to an electric can opener which opens a can lid by rotating the color with a drive wheel in the state of the can opener.

Conventionally, this type of electric can opener has a drive wheel rotatably supported at a predetermined position on the machine frame, and a cutter that is moved near and far relative to the drive wheel by operating a control lever. In this state, the operator operates the operating lever to cause the cutter to cut into the lid of the can. In such an electric can opener, for example, when attempting to open the lid of a large and heavy can, a person must lift the can with both hands and tighten the can onto the drive wheel. There are problems in that one person has to operate the operating lever to make the cutter cut into the lid of the can, and another person has to operate the operating lever to make the cutter cut into the lid of the can. The problem arose in that the hand holding up the color had to be released from the can at the right time when operating the control lever.

In order to eliminate the above-mentioned drawbacks, a rotary table for placing cans on a can opener mounting base equipped with an electric can opener is rotatably installed, and when opening can lids, the cans are placed on a rotary table and tightened. The can can be placed against the drive wheel and rotated together with the rotary table by the rotation of the drive wheel, and the lid of the can can be cut open with a cutter, or the can can be opened on the front of the electric can opener according to the height of the can. Attach a can bottom support frame that can be moved up and down,
The can bottom support frame is fixed at a position corresponding to the height of the can to be cut out, and then the can is mounted on the can bottom support frame through the hemispherical protrusion provided in the center. A device has been developed that uses a drive wheel to rotate the lid around a protrusion on a can bottom support frame to open the lid, but these machines all require an electric can opener with a rotary table and a can bottom support frame as accessories. Because the electric can opener is specially installed, the number of parts increases, the number of assembly steps increases, and the manufacturing cost increases.
The large size of the can opener itself poses a problem in packaging and transportation, and furthermore, it is difficult to store it at the place of use, for example in a small space such as a kitchen cupboard.

Therefore, the present invention aims to solve the above-mentioned problems.In addition to requiring the work of lifting cans, the can opener itself may be equipped with an attachment for supporting cans. To provide an electric can opener that allows one person to easily open the lid of a can without any hassle.

Embodiments of the present invention will be described in detail below with reference to the drawings. In the fang diagrams to fang diagrams, the housing l is composed of a housing-like front lid 2 with an open rear end and a housing-like rear lid 3 with an open front end. By fixing the two underframes with set screws a with their opening surfaces facing each other, and fixing the front cover and the upper part of the rear cover 3b to each other with screws llb, the housing 1 is inserted into the interior. hollow chamber/a
It has a housing shape and power. In the ceiling 3a of the rear lid 3, an insertion hole Jb75 (formed) that is long in the front-rear direction (left-right direction of the fang 2) on the side of the front lid 2 is formed. A circular hole 2 is drilled in the hole 2;
As shown in Figure q, in the upper part of the housing, there are two elongated holes 2c, 2 at positions on both sides of the through hole 2b.
d are perforated in the vertical direction parallel to each other. The center of the side end of the inner surface of the front wall 2a of the front cover is formed thickly, and engagement step portions 2g*2h are formed in the thick portions 20, 2f in the vertical direction facing each other. . Between the engagement step portions 2fXr and Jh, an elevating plate S shown in FIG. Covering the thick part 20,
The cover plate O fixed to 2F prevents it from moving backward. As shown in the fang 1 diagram and the off diagram, the elevating plate S has a long vertical hole ja vertically bored in the center at a position corresponding to the through hole 2b of the front lid 2, and both sides of this vertical hole Sa There is a through hole 3b, which is slightly smaller than the vertical hole 3a. c is vertically drilled, and screw holes 1 are drilled in the upper part of the lifting plate S in correspondence with the long holes 2a, 3d of the front wall ja, and the lower part of the side end of the lifting plate S Connection pieces 5e93f are cut and raised to face each other in the horizontal direction, and the connection pieces 5e93f are cut and raised at the lower end of the elevating plate 5. The tongue pieces 3b+3@'' are cut and raised in the horizontal direction at positions corresponding to e and 3f. Pin holes are formed in the connecting pieces so and st and the tongue pieces 'gsjh, respectively.

Next, a drive mechanism 7 is built into the hollow chamber /a in the housing l, and the drive mechanism 7 is composed of an electric motor and a gear device /l. As shown, the elevating plate S is attached to the inner surface of the front wall 2a with screws 2 in between. At this time, the bearing /3, which is provided in the upper part of the gear box and protrudes toward the front wall 2a side, passes through the vertical hole Sa of the elevating plate S and is inserted into the through hole jb of the front wall 2a. A rotary shaft /11, which is attached to the last gear of the reduction gear train IO, is rotatably inserted into the shaft hole of the bearing /3. The driving wheel ls is shown as a can feeding gear in the drawing, but it may also be a friction wheel or the like. Therefore, when the electric motor is energized, the rotation of the electric Ja is decelerated and transmitted to the rotating shaft llI,
As a result, the drive wheel /S is rotated at a low speed in the direction of arrow A.

Next, as shown in FIG. 5, above the drive wheel /S, a cutter base /4 is provided so as to be movable up and down along the front cover 2, and a vertically long cutter base /4 is formed integrally with the cutter base /A. A long hole 2a with a boss part L &, /Otsu bored in the front wall 2a,
2! L, and the above boss part /4a, /
&'bllC By screwing the engaged set screw /7 into the screw hole Sd of the lifting plate S, the cutter pace /
6 is the boss part / Otsu a, / Otosuyoshi long hole Jc,
The elongated hole 2 is integrated with the elevating plate S using 2d as a guide.
It is attached to the front lid so that it can move up and down within a range of 2d. On the front surface of the cutter base/6, between the two setscrews/7, a shaft support part/I is integrally formed to bulge diagonally downward in front of the cutter base/B. A shaft is fixed diagonally downward, and a cutter 20 is attached to the tip of the shaft.
It is rotatably mounted in a state where it is biased forward by a compression spring 21 interposed between the shaft support part /g,
This cutter 20 is prevented from being removed by the head of a set screw 22 screwed onto the tip of the shaft. The cutter 20 cuts the lower end of the cutting blade on the outer periphery into the edge of the lid 2jb of the can 23 with the seam 23a of the can 23 to be cut in contact with the drive wheel IS. The protrusion distance from the front wall 2a is set so that the front wall 2a can be extended. Although the cutter 20 is shown as a round cutter in the drawings, it may be a straight cutter such as a knife. When the cup coupe 2/B moves downward, the center of its lower end is cut into a hemispherical shape so as not to collide with the rotating shaft/l protruding from the front wall 2a. Can pressers 211, 211 are attached to the can pressers 211, 211.

Next, as shown in FIG. 4, support pieces 25° 2S are integrally provided on the upper part of the inner surface of the front wall 2a at intervals in the left-right direction, so that the operating lever 2B can be reciprocated in the front-rear direction. This operating lever 2, which is pivotably mounted, has leg pieces 2a and 26a divided into two forks at its lower part, and these leg pieces j
4a, a pivot 27 fixedly fixed through the straddles 4a and 24a.
is pivotally attached to the support piece 25.215. The upper part of the operation lever 2B projects upward through an insertion hole 3b provided in the ceiling 3a of the rear cover 3.Furthermore, the operation lever 2A (-26) has leg pieces 2A, 2A and the above. 5g of connecting pieces for the lifting plate S.

3f is the operation reno (-2
6. The cutter 20 moves downward when the lever is moved backward, and the cutter 20 moves upward when the operating lever 2 is moved forward, as shown in Figure 2. They are connected by pins by links 2g, 2g shown as mechanisms.

Next, a switch 30 is attached to the upper part of the gear box in correspondence with the pressing part formed at the lower part which is the branching point between the leg pieces 2Oa and 2Oa of the operation lever 2O. When the switch 30 moves the operating lever B forward, the suppressor 2
The motor is operated by the switch, thereby energizing the motor.

Next, a can opener-like tilting mechanism 3/a is provided on the lower side of the lifting plate S. To explain its structure in detail, rods 3/, 3/ whose upper portions have a constant length and a small diameter Insert the small diameter upper end into the pin hole provided on the tongue piece 'gp 3kJIC of the lifting plate S, and insert the lower end into the recess 32.32 recessed on the front cover side of the outer surface of the underframe 2A. As shown in Figure 1, the rods 3/ and 3/ are vertically movable in parallel to each other and stand upright on the inner surface of the lid, as shown in Figure 1.
Between Sh and the recesses 3 and 32, the fang l and the support metal fittings 33 and 3'l of the fang 2 are inserted and supported to maintain a vertical state.
As shown in the figure, the spears 3.3t are fixed to the inner surface of the front wall 2a of the front cover with a required distance from each other in the vertical direction. And the above rod 3/.

A leg portion 3S is fixed to the lower end of 31 and is loosely fitted into a recess 32.32 of the underframe 2A, projecting downward from the recess 32.32. In addition, when entering the inside of the lock 3a, the tongue piece 5g, 5. Lower surface force of h; rod 31.
3/'s large diameter part, ie, rod 3/.

Stepped part 36 that exists between the small diameter part of 3/ and the large diameter part
It is formed so as to come into contact with. Moreover, compression springs 37 and 37 are interposed between the tongue pieces 5g and 5h of the elevating plate S and the supporting metal fittings 33 and 33 of the fang/, surrounding the rods J/ and 3/, so that the elevating plate is always S is pushed upward to widen the gap between the cutter 20 and the drive wheel/S by a certain distance, making it easier for the can 23 to be tightened 2 Ja in between.
Further, on the lower side of the support fitting 33 of the fang l, the rod 3/,
A compression spring 3 of 82 and 39 is interposed between the upper ring 3g fixed to 3/ and the support fitting 311 of the fang 2, also surrounding the rod J/*J/. ,3
1 is constantly pushed upward. Then, the rods 3/, 3/ are pushed by the force of the compression springs 3, 3 of the teeth until the upper ring 3g comes into contact with the support A33, 33 of 8/. And the support metal fitting 33 for the upper wheel 3.
33, the upward movement of the rods 3/, 3/ is stopped and the tongues of the lifting plate S'
Distance 1 to go 5h is set. This distance 1 is set to a distance that allows the cutter 20 to descend from the uppermost position and enter the inside of the seam 23a of the can 23, as shown in Fig. Φ). Note that a leg part qO similar to the leg part 3S fixed to the rods 3/ and 3/ is attached to the rear lid 3 side of the underframe 2A, and a protrusion l is attached to the front wall 2a of the front lid 2.
/ is provided protrudingly, and this protrusion ql is connected to the body 23 of the can 23.
It is for receiving the body part 2Jct so that c is slightly slanted, and is located below the 15th drive wheel and protrudes slightly forward from it.

With the above configuration, when the /< -24 is swung toward the front lid λ side as shown in Fig.
is moved upward along the front cover 2a by the movement of the link 2g, and the cutter base/6, which is integrally connected to the elevating plate S by the set screw 17, is simultaneously moved upward and is pivotally supported by the cutter base/6. The distance between the cutter 20 and the driving wheel IS is greatly increased. In addition, in this state, as shown in the figure, the switch 3 is pressed by the suppressing portion 2 of the operating lever 2.
0 has been released, and the operation of electric motor g has stopped. In this state, slide or roll the can 23 to be cut open on the floor so that the body 230 of the fFr 23 comes into contact with the projection lI/, and push the can 23 with one hand. Tighten can 230 by tilting 2
The lower end of the outer side of the drive wheel lS is shown in the figure).
touch the top edge of the Next, use your other hand to operate the above operation (-
When 2≦ is swung toward the rear cover 3 side as shown by the solid line in Figure 3,
The elevating plate S is moved downward by the movement of one link 2g, and the cutter 20 is moved downward via the cutter base 6 by the operation of the elevating plate S, and the lower end force of the cutter 20 is
As shown in Figure (B), the 0
As a result, the lower end of the cutter 20 prevents the tightening 2 Ja from falling off the drive wheel 15, and therefore,
At this point, the user can completely release one hand that was pushing the can 23 and tilting the can 23. After that, when the above operation is performed and /<-26 is further successively swung toward the rear cover 3 as shown in Fig.
0 is further moved down, and as a result, the cutter 20 cuts into the lid 2Jb of the can 23 as shown in the tooth profile (0).

At this time, when the cutter 20 moves downward from the position shown by the solid line in FIG. 5 (03) to the position shown by the solid line in FIG. The lower end surface of the tongue piece 5g55h of the lifting plate S is the stepped portion 36 of the rod 31.
The rod 3/ is pressed down against the force of the compression spring 37, 39 of the fang 1 and the fang 2, and the leg 3S attached to the lower end of the rod 31 is moved against the fang 3. As shown in , it is pushed out from the recess 32 of the underframe 2A. For this reason, there is a level difference between the front leg 3S of the underframe 2A and the rear leg DAO, as shown in Fig. It will be tilted rearward in a state where it is slightly lifted from the surface t2. In this way, when the front lid 2 is slightly raised and slightly tilted backward, the can 23 is pushed up by the driving wheel/S, and the entire can 23 is moved as shown in FIG. 0), lift it up from the floor J2. Therefore, when the can 23 is prevented from falling off by the lower end of the cutter 20 and lifted up by the drive wheel/S as described above, the body 23a of the can 23 is lifted up by the protrusion ll of the front lid 2 as shown by the imaginary line in FIG. It is held in position by its own weight in a slightly tilted state. As described above, when the operating lever 26 is operated to the position where the cutter 20 cuts into the lid 23b, the suppressing portion 2 of the operating lever 2B
The driver operates the switch 30, which activates the stain motive mechanism and rotates the drive wheel/S in the direction of arrow A.

Therefore, by pressing the operating lever 26 backward, the can 23 is rotated by the drive wheel /S, and the cutter 20 sequentially cuts the edges of the lid 230 of the can 23 while rotating. In this case, the can 23 is lifted from the floor surface 172 by the driving wheel /S as the electric can opener tilts backward, and the can 23 is held in position by contacting the protrusion t/, so the can 23 is extremely Rotate smoothly and cover 2
jb is incised smoothly 0 In addition, in the above case, leg piece 2
When the pivot point of the link 2g relative to Aa is set to exceed the dead center, the relationship between the cutter 20 and the drive wheel/S is shown in Fig. 3, even if the operating lever 2B is not pressed. It is possible to maintain this condition.

After the opening of the lid 23t) of the can 23 is completed as described above, when the operating lever 2B is swung toward the front lid side again,
The elevating plate S is moved upward, and the cutter pace/O which is interlocked with the elevating plate S is also moved upward to return the cutter 20 to its original position.At the same time, the switch 3 is pressed by the pressing part 29 of the operating lever 2 O.
0 operation is released and the rotation of the drive wheel IS is stopped.

In this case, by the upward movement of the lifting plate S, the rod 3/ is moved upward by the compression spring 3 of the fang 2 until the upper wheel 3g comes into contact with the support fitting 33 of 8/. Therefore, this lot 3
As the / moves upward, the upper part of the leg 3S is accommodated in the recess 32 of the underframe 2A, and the electric can opener itself also moves from the tilted state shown in FIG. It returns to its original state standing upright on the surface 12. In this way, by returning the cutter 20 to its original position and releasing the tilt of the electric can opener, the can 23 is no longer lifted up by the drive wheels 3 and is placed on the floor 12.
It is placed back on top and the can 23 can be removed from the electric can opener.

Incidentally, the height of the drive wheel IS is designed to be such that, for example, a No. J Engineering S/ can can be cut open as described above.

Further, the present invention can be realized even if the operating lever 2B is of a reciprocating sliding type or a reciprocating rotating type instead of the one with the swinging mechanism as described above.

As described above, in this invention, the can 23 is placed on the floor surface 12.
2 Ja is placed on the drive wheel 15, and in this state lower the cutter 20 to cut the lid 2 Since the can 23 is tilted slightly to the side and lifted by the drive wheel/3 and separated from the floor surface 12, the lid 23b can be opened by rotating the drive wheel 15 as described above. be.

Moreover, before performing the above-mentioned incision operation, seaming 2 ja
When placing the can 23 on the drive wheel IS, simply operate the operating lever 2B to retract the cutter 20 upwards.
For example, it is possible to easily place the seaming 2 Ja on the drive wheel/S as described above by moving it laterally while leaving it on the table, and furthermore, after positioning the can 23 as described above, the cutter Cut 20 into the lid 2 Jb and attach the can 23.
When cutting the can opener, the cutter 20 descends and enters the inside of the seam 23a of the can 23, and then the elevating plate S that lowers the cutter 20 moves the iron 31 downward and projects it from the bottom of the electric can opener. By tilting the electric can opener itself a little rearward with one leg 3s, the can opener 23 is driven while being prevented by the cutter 20 from falling off the drive wheel/S. Since the can 23 to be opened can be lifted by the wheel S, there is no need to hold the can 23 to be cut open and place the seam 2 ja on the drive wheel IS, or to support the can 23 to be lifted by hand. This has the effect of lifting the can 23 off the table and allowing it to rotate easily. Furthermore, when the opening of the lid 23b is completed, as the operating lever 26 is returned to its original position, the electric can opener returns from the tilted state to the upright state on the floor surface #2, so that the can 23 has its bottom surface on the floor. After contacting surface 12, cutter 2
The can 23 can be removed from the electric can opener by moving the can 23 away from the inside of the seam tightening 2 Ja and above it, so after opening the lid 23, suddenly perform the return operation of the operating lever 2 O. The can 23 is released from the electric can opener and falls onto the floor 12, and there is no possibility that the contents of the can 23 will be scattered onto the floor 2 due to the shock. Furthermore,
According to the present invention, by simply tilting the electric can opener slightly to the rear, the can 23 can be automatically set in the can opener without having to be held by hand, and the can can be opened while being lifted from the floor. In addition to being able to quickly and easily cut open heavy cans, the mechanism for tilting the electric can opener is housed in a narrow space inside the can opener, and its structure allows for easy lifting and lowering of the cutter. Since only a portion of the legs are moved up and down in conjunction with each other, the structure is simple and makes effective use of empty space, and eliminates the need for a rotary table for placing cans and a can bottom support frame as in the past. Since there is no need to provide it on the front of the electric can opener, the electric can opener can be manufactured with a simple structure and beautiful appearance, and has many excellent effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and the fang 1 is a front view;
Figure 2 is a partially cutaway side view showing the inside, Figure 83 is a longitudinal sectional view showing the operating state, Figure 1 is a rear view with the back cover removed and a part of the interior is cut away, and Figure S Figure 86 is a cross-sectional view taken along line A-A of Figure 1, figure 87 is a perspective view of the elevating plate, figure g (A), CB), (a).
FIG. 2 is an explanatory diagram showing the operational relationship between the cutter and the drive wheel. 2. Front lid S. Elevating plate 7. Drive mechanism 2o. Cutter 2t. Operation lever 2g. Link (interlocking mechanism) 3 /
a・Can opener-like tilting mechanism

Claims (1)

[Scope of Claims] (1) A front cover, a drive wheel rotatably attached to the front cover and capable of carrying the seaming of the upper part of the can, and a drive wheel attached to the front cover and the drive a drive mechanism configured to rotate the wheel; a cutter mounted above the drive wheel so as to be movable up and down to cut into the lid of the can; and an operating lever mounted to the front lid so as to be movable reciprocally. , the cutter moves downward when the operating lever is moved forward, and the cutter moves upward when the operating lever is moved forward;
A linkage mechanism interposed between the operating lever and the cutter, and a leg part operably connected to the linkage mechanism and attached to the bottom surface of the front cover side, are extended and contracted to a required length to extend and contract the front cover. and a can opener tilting mechanism that tilts the can opener backward at a required angle, and the relationship between the operation of the can opener tilting mechanism and the downward movement of the cutter is such that the cutter does not fall off from the driving wheel for tightening the can. After moving down to the inside position of the seaming that can be prevented,
An electric can opener characterized in that the can opener tilting mechanism is set in an operating relationship. (2) The cutter is attached via a cutter plate to an elevating plate that is attached to the front cover so as to be able to move up and down, while the operating lever is pivotably attached to the front cover via a support piece. The electric can opener according to claim 1, wherein the linking mechanism is constituted by a link interposed between the operating lever and the elevating plate. (8) The driving mechanism is controlled by a switch. furthermore, the switch is attached to the drive mechanism at a position where it is closed by pressing EEs of the operating lever when the operating lever moves downward and the cutter cuts into the lid of the can. An electric can opener according to claim 0 (荀) The can opener tilting mechanism is provided with a rad from the bottom surface on the front lid side, and the rond and the elevating plate are normally provided surrounding the rad. The rod is pushed upward by a compression spring to maintain a predetermined distance between the cutter and the drive wheel, and when the can lid is cut, the leg of the rod tip is moved toward the front lid side in conjunction with the downward movement of the cutter. An electric can opener according to claim 1, wherein the electric can opener projects a required length from the bottom surface.