JP3044044B1 - can opener - Google Patents

Abstract

An object of the present invention is to reduce the risk of an operator or the like coming into contact with a sharp inner peripheral edge of a cut portion of a canopy to cause injury. [MEANS FOR SOLVING PROBLEMS] Handle 1; A blade body 2 is provided below the handle 1, has a substantially V-shape in front view, is inserted into the canopy 16 of the can 15, and cuts the canopy 16. Blade 2
Is provided at the rear of the canopy 16 with a rear-side pressing body 5 that bends an inner peripheral side 26 of the canopy 16 below the cut portion by the blade body 2, and the lower end of the rear-side pressing body 5 is higher than the lower end of the blade body 2. And at least the lower part is inclined backward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a can opener.

[0002]

2. Description of the Related Art When a content is allowed to flow out of a square can, such as a one-ton can filled with paint or the like, it is customary to remove a cap provided on a canopy of the can. However, when the contents of the can are discharged at a stretch in a short time, a part of the outer peripheral portion of the canopy is cut to form an opening. In this case, for example, a can opener shown in FIGS. 13 to 15 is used. This can opener has a handle 41 and a blade body 42 which is provided below the handle 41 and has a substantially V shape in a front view. , Blade 4
2 has a safety guard (not shown) disposed in front of and covering the front surface thereof.

[0003] When the opening 46 is formed in the canopy 45 of the can 44 by the above-mentioned can opener, after the can opener safety guard is removed, as shown in FIG. It is positioned above the corner of the outer periphery of the canopy 45 and, as shown in FIG. 15, is inserted through the corner and cut. Then, as shown by the imaginary line in FIG. 15, the handle 41 of the can opener is pushed out of the can 44, and the blade body 42 is brought into contact with the tightening portion 53, so that the inner periphery of the canopy 45 is more inward than the cut portion. The side 47 is bent upward to form a large opening 46 in the canopy 45.

[0004]

However, the conventional can opener has the following problems. A. That is, when the inner peripheral side 47 is bent upward from the cut portion of the canopy 45, the sharp inner peripheral edge 49 of the cut portion of the canopy 45 is located outside the can 44, so that the contents of the can 44 are In the case where the inner peripheral edge 49
Was in danger of being injured by contact with B. Further, the outer peripheral edge 51 of the cut portion of the canopy 45 is also sharp, but since the outer peripheral edge 51 is also in a substantially horizontal state, when the contents of the can 44 are allowed to flow out to the outside, an operator, etc. There was also a risk of injury due to contact with the outer peripheral edge 51. C. Furthermore, when cutting the canopy 45 of the can 44, it is preferable to cut a portion of the outer periphery of the canopy 45 as close as possible to the fastening portion 53. The reason is that the closer the cut portion is to the tightening portion 53, the smaller the size of the outer peripheral portion 54 of the canopy 45 than the cut portion in the canopy 45.
When the entire amount of the contents of the can 44 is discharged to the outside, the amount of the remaining contents is reduced by being prevented from flowing out by the outer peripheral side 54, and the environment can be made environmentally friendly even when the can 44 is discarded. Because. By the way, even if the conventional can opener is provided with a safety guard and the canopy 45 is cut with the blade body 42 in a state where the safety guard is opposed to or in contact with the outer peripheral surface 56 of the can 44, the winding in the canopy 45 is performed. The vicinity of the fastening portion 53 can be easily cut. However, in a state where the safety guard is provided, when the inner peripheral side 47 of the cut portion of the canopy 45 is bent upward after the canopy 45 is cut, the safety guard may
4 cannot be bent because it abuts the outer peripheral surface 56. Therefore, in the related art, after purchasing the can opener, the safety guard is removed from the can opener, and when the canopy 45 is cut, the canopy 45 is cut by the blade body 42 only by eye measurement. For this reason, at the time of the above-mentioned cutting, it is difficult to cut the portion near the winding portion 53 of the canopy 45, and in many cases, the portion of the canopy 45 largely separated from the winding portion 53 is cut. As a result, the size of the outer peripheral side 54 of the canopy 45 is larger than the cut portion, and the amount of the content remaining in the can 44 when the content is discharged from the can 44 to the outside increases. When throwing away 44, there was a problem that it was not environmentally friendly. D. After the can opener was purchased, the safety guard covering the front surface of the blade body 42 was removed as described above, so that the blade body 42 was exposed, which was also dangerous.

[0005] An object of the present invention is to provide a can opener that can solve the above problems.

[0006]

Means for Solving the Problems In order to achieve the above object, the features of the present invention are as follows. A handle; A can opener is provided below the handle, is substantially V-shaped when viewed from the front, is inserted into the can canopy, and has a blade that cuts the canopy. And a rear-side pressing body that bends at least a lower part of the rear cantilever, and that bends an inner peripheral side of the canopy below the cutting portion of the blade body, and includes at least a lower portion of the rear-side pressing body. Is formed in a curved convex shape obliquely upward and forward. The rear pressing body may be mainly composed of a pair of right and left bars. A. A handle; In a can opener having a blade body that is continuously provided below the handle and has a substantially V-shape in front view, is inserted through the canopy of the can, and cuts the canopy, the lower end is provided on both left and right sides of the front surface of the blade body. A pair of left and right front pressing members are provided which are positioned higher than the lower end of the blade body and press down and bend the outer peripheral side of the canopy with respect to the cutting portion by the blade body. There is also a case where it is inclined to move to the other side. Further, in front of the blade body, the lower end portion is positioned lower than the lower end of the blade body, and when the blade body is inserted into the canopy, it faces the outer peripheral surface of the can or comes into contact with the can body and moves downwardly. A guide that guides the movement of the blade and also serves as a safety guard for the front surface of the blade body may be provided.
The guide may be mainly composed of a bar.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a can opener for a square can such as a single can will be described below with reference to FIGS. 1 to 12. The can opener is composed of a handle 1 and a blade. Body 2
, A guide 3, a pair of left and right front pressing members 4, a rear pressing member 5, and the like.

The handle 1 includes a pair of left and right holding portions 7, an upper connecting portion 8 connecting upper portions of the both holding portions 7 and presenting a planar shape in the front-rear direction, and connecting lower end edges of both holding portions 7 and It has a lower connecting portion 9 having a planar shape in the direction, and is integrally formed. The two holding parts 7 are arranged in a substantially V shape in plan view,
Is an (approximately) right angle, and forms an (approximately) 45 ° angle in the front-back and left-right directions. An opening 10 is formed in each holding portion 7 so as to penetrate in the front-back (left-right) direction.
A portion above the opening 10 of each holding portion 7 is a cylindrical holding portion 11. The lower portion of each holding portion 7 below the opening 10 is a guide mounting portion 12, but the lower end is bent rearward and the rear end of the bent portion is further bent downward. Thus, the blade body mounting portion 13 is provided.

The blade body 2 is inserted into the canopy 16 of the can 15 to cut the canopy 16, and the upper end of each of the left and right sides thereof has a screw or the like on the front surface of each blade body mounting portion 13 of the handle 1. And is connected to the lower part of the handle 1. The blade body 2 is integrally formed in a substantially V-shape as viewed from the front, and the left and right edges from the lower end to the upper ends on both the right and left sides are sharp single-edged type cutting blades (blade portions) 18. Blade 2
Is substantially V-shaped in a plan view, and the angle formed by both sides of the blade body 2 is (substantially) a right angle.
(Abbreviated) forms an angle of 45 °. A central portion of the blade body 2 in the front-rear direction is curved and convex forward, and a V-shaped notch 19 is formed in an upper portion thereof.

The guide 3 is disposed on the front side of the blade body 2, and when the blade body 2 is inserted into the canopy 16, the outer peripheral surface 20 of the can 15 is provided.
And guides the downward movement of the blade body 2 in contact with or in contact with the blade body 2 and further serves as a safety guard for the blade body front surface. Is also located on the outside. The guide 3 has a pair of left and right mounting plates 22 detachably mounted on the front surface of each guide mounting portion 12 of the handle 1 by a fixing tool 21 such as a screw, and each end portion is mounted on an outer portion of each mounting plate 22. The outer frame 23 has a substantially V-shape when viewed from the front, and a pair of left and right connecting portions 24 for connecting the inside of each mounting plate 22 and the lower end of the outer frame 23. Outer frame 2
3 and each connecting portion 24 are made of a round bar, and the guide 3 (especially,
The front part of the blade body 2) is mainly made of a round bar. The lower end of the outer frame 23 has a (substantially) trough-like shape in a front view, and has a curved convex shape in a front view in a plan view. Each connecting portion 23 has a rearward inclined shape and an inclined shape that shifts outward as it goes toward the upper end.

Each front-side pressing body 4 is welded to each of the left and right sides of the front surface of the blade body 2 to bend the outer peripheral side 14 of the canopy 16 below the cut portion of the blade body 2 and has a lower end. It is higher than the lower end of the blade 2. Each front-side pressing body 4 is inclined so as to move outward as it goes toward the upper end. The inclination angle in the horizontal direction is the inclination of each side edge (cutting edge 18) of the blade body 2 in the horizontal direction. The distance from each side edge of the blade body 2 is set to be smaller than the corner and to be larger toward the lower end. The front surface of the outer side of each front-side pressing body 4 is formed as an inclined surface 25 which is inclined away from the blade body 2 toward the inner side. In addition, the inner ends of the front pressing members 4 may be integrated.

The rear-side pressing body 5 is disposed behind the center of the blade body 2 in the left-right direction, and moves the inner peripheral side 26 of the canopy 16 below the cut portion of the blade body 2 to the lower side (can 15). Is bent in a curved shape so as to be convex toward the opening 27 formed in the canopy 16. The rear-side pressing member 5 includes a pair of right and left pressing members 28 made of a round bar.
The upper end of each pressing member 28 is bent horizontally forward and is welded to the upper surface of the lower connecting portion 9 of the handle 1. The portion of each pressing member 28 other than the upper end portion has a rearward inclined shape, a curved convex shape obliquely forward and upward, and an inclined shape that shifts inward toward the lower end. . The lower ends of the pressing members 28 are welded to each other and also to the rear surface of the blade body 2, and the lower ends of the pressing members 28 are higher than the lower ends of the blade bodies 2.

According to the above configuration example, when forming the opening 27 in the canopy 16 of the square can 15 such as the one-tower can 15, the handle 1
After gripping both gripping portions 11 and bringing the can opener above the can 15, the lower end of the guide 3 is opposed to the outer peripheral surface 20 of an arbitrary corner of the can 15 via a small gap, or In this state, the lower end of the blade body 2 is brought into contact with the corner of the canopy 16. Next, while being guided by the guide 3 in the above state,
The can opener is pushed down, and the blade body 2 is inserted into the canopy 16 as shown in FIGS. 9 to 11, and the canopy 16 is moved from one corner to two adjacent corners by the cutting blade 18 of the blade body 2. Towards the end, they are cut one by one.

In this cutting process, as shown in FIGS. 9 and 11, each pressing member 28 of the rear pressing body 5 is
6, the inner peripheral side 26 abuts on the inner peripheral side 26 with respect to the cut portion by the blade body 2, and the inner peripheral side 26 is bent downward to form a large opening 27 in the canopy 16. At this time, the portion excluding the upper end of the rear pressing body 5 is inclined backward, and the inner peripheral side 26 is gradually bent as the cutting progresses, so that the bending can be smoothly performed with a small force. Further, since the portion excluding the upper end portion of the rear pressing body 5 has a curved convex shape obliquely upward and forward, the bent portion of the canopy 16 is bent when the canopy 16 is bent as described above. By abutting on the portion, it becomes smoothly curved and convex with respect to the opening 27 side, and the sharp inner peripheral edge 31 of the cut portion in the canopy 16 is hidden inside the can 15.

In the above cutting process, as shown in FIG. 12, each of the left and right front pressing members 4 is
The outer peripheral side 14 is bent downward from the cut portion. At this time, the outer peripheral side 14 of the canopy 16 on the outer peripheral side relative to the cutting part and the inner peripheral side 26 on the inner peripheral side relative to the winding part 29 are small in size, and a relatively large force is required to bend them. Each front-side pressing body 4 is inclined so as to move outward as it goes toward the upper end, and the bending is performed sequentially as the cutting progresses, so that a large force is not required for the bending. Furthermore, the front surface of the outer portion of each front-side pressing body 4 is formed as an inclined surface 25 which is inclined away from the blade body 2 toward the inner side, so that the bending can be further reduced with a small force. It can be done smoothly.

In the process of cutting the canopy 16, the blade 2
The pushing force required by itself becomes extremely large when the blade body 2 is inserted into the canopy 16. In consideration of this, the lower end of each of the front-side pressing body 4 and the rear-side pressing body 5 is
Of the front body 4 and the rear body 5 at the same time as the blade body 2 is inserted into the canopy 16.
When the blade body 2 is inserted into the canopy 16 without bending, the pressing force required for each of the front-side pressing members 4 and the rear-side pressing members 5 is reduced to zero. Despite having the rear-side pressing body 5, when the blade body 2 is inserted into the canopy 16, the required depressing force can be made substantially the same as in the related art, and is required in the cutting process of the canopy 16. The maximum pushing force can be substantially the same as the conventional one.

As described above, the inner peripheral side 26 and the outer peripheral side 14 are bent downward from the cut portion of the canopy 16 so that the sharp inner peripheral edge 31 and the outer peripheral edge 30 of the cut portion of the canopy 16 are bent.
Is positioned inside the can 15, so that when the contents of the can 15 are discharged to the outside, there is little possibility that an operator or the like comes into contact with the inner peripheral edge 31 or the outer peripheral edge 30 and is injured. In particular, as described above, the bent portion of the canopy 16 has a curved convex shape with respect to the opening 27 side.
Since the sharp inner peripheral edge 31 of the cut portion is hidden inside the can 15, an operator or the like comes into contact with the inner peripheral edge 31,
The risk of injury is extremely low.

In the above case, the lower end of the blade 3 is held in a state where the lower end of the guide 3 is opposed to or abuts the outer peripheral surface 20 at an arbitrary corner of the can 15 via a small gap. Canopy 16
After being brought into contact with the corner of the canopy 16, the canopy 16 is cut by the blade body 2 while being guided by the guide 3.
Can be cut off in the vicinity of the winding portion 29. Therefore, the size of the outer peripheral side 14 of the canopy 16 can be made smaller than that of the cut portion by the blade body 2, and when the contents of the can 15 are allowed to flow out after the canopy 16 is cut, the outer peripheral side 14 Accordingly, the amount of contents remaining in the can 15 due to the prevention of the outflow can be reduced, and the environment can be made environmentally friendly even when the can 15 is discarded.

Further, since the guide 3 serves as a blade body safety guard positioned in front of the blade body 2, the lower end and the outer side thereof are located outside the blade body 2 in front view. The risk of injury due to contact with the second cutting blade 18 can be reduced.

Further, since the guide 3 is composed of a bar and the rear pressing body 5 is mainly composed of a rod, the guide 3 and the rear pressing body 5 are used for positioning or cutting the can 15 with respect to the can 15. The above positioning and cutting can be easily performed with little fear of obstructing the field of view of the user. Further, since the portion of the blade body 2 concealed by the guide 3 and the rear-side pressing body 5 is small, even when the can opener cleaned with the contents of the can 15 is cut after the canopy 16 of the can 15 is cut, cleaning is also performed. Easy and good.

In the above embodiment, the present invention is applied to a can opener for a square can, but the present invention is also applicable to a round can such as a pail can. In this case, the guide has a curved shape along the outer peripheral surface of the round can in plan view, but the blade body may have a substantially V shape as in the above embodiment in plan view, or It may be curved along the outer peripheral surface of the can.

[0022]

As described in detail above, according to the present invention,
The following effects are obtained. A. Since the sharp inner peripheral edge of the cut portion of the canopy was positioned inside the can by bending the inner peripheral side downward from the cut portion of the canopy, such as when the contents of the can flow out, It is less likely that an operator or the like comes into contact with the inner peripheral edge and is injured. B. Since at least the lower portion of the rear pressing body is inclined rearward and the inner peripheral side of the canopy from the cut portion is gradually bent as the cutting progresses, the bending can be smoothly performed with a small force. C. In the process of cutting the canopy, the push-down force required for the blade itself jumps out and becomes large when the blade is inserted into the canopy. In consideration of this, the lower end of the rear pressing body is positioned higher than the lower end of the blade body, and simultaneously with the insertion of the blade body into the canopy, the canopy is not bent by the rear pressing body, and the blade body is closed. When the blade is inserted into the canopy, the pushing force required for the rear-side pressing body is set to zero, so that the blade is required to be inserted into the canopy despite the provision of the rear-side pressing body in the can opener. And the maximum pressing force required in the cutting process of the canopy can be made substantially the same as the conventional one. D. Since at least the lower portion of the rear-side pressing body is curved and convex forward and obliquely upward, at the time of bending the inner peripheral portion side than the cut portion of the canopy, at least the portion near the inner peripheral edge in the bent portion of the canopy, To the opening side of the canopy,
It becomes a curved convex shape smoothly, and the sharp inner periphery of the cut part in the canopy is hidden in the inner side of the can, so that the worker etc. is in contact with the inner periphery and there is less risk of injury. it can.

According to the second aspect of the present invention, since the rear pressing member is mainly composed of the bar, there is a fear that the rear pressing member may hinder the operator's field of view when positioning the can opener with respect to the can or cutting. The positioning and cutting can be easily performed with less. Also, since the portion of the blade body that is hidden by the rear-side pressing body is small,
After the can canopy is cut, the can opener can be easily and satisfactorily cleaned even when the can opener is soiled with the contents of the can.

Further, according to the third aspect, the following effects can be obtained. A. The sharp outer edge of the cut part of the canopy was positioned inside the can by bending the outer peripheral side downward from the cut part of the canopy. It is less likely that a person or the like comes into contact with the outer peripheral edge and is injured. B. As each front-side pressing body is inclined toward the outer side as it moves toward the upper end, the outer peripheral side of the canopy is bent more than the cut portion of the canopy, as the cutting of the canopy by the blade body proceeds sequentially, so that The bending does not require a large force. C. In the process of cutting the canopy, the push-down force required for the blade itself jumps out and becomes large when the blade is inserted into the canopy as described above. With this in mind,
The lower end of each front-side pressing body is higher than the lower end of the blade body, and at the same time as the insertion of the blade body into the canopy, so as not to bend the canopy by each front-side pressing body, when inserting the blade body into the canopy, Since the pressing force required for each front-side pressing body is set to zero, the required pressing-down force when inserting the blade body into the canopy is approximately the same as that of the conventional, even though the can opener has the front-side pressing body. In the process of cutting the canopy, the required maximum depressing force can be made substantially the same as before.

According to the fourth aspect, the following effects are obtained. A. When the blade body is inserted into the canopy, a guide that guides the downward movement of the blade body by being opposed to or in contact with the outer peripheral surface of the can is provided, so that a portion of the canopy near the outer peripheral edge can be cut. . Therefore, in the canopy, the size of the outer peripheral portion side can be made smaller than the cutting portion by the blade body, and after the canopy is cut, when the contents of the can flow out, the outflow is hindered by the outer peripheral portion side. The amount of contents remaining in the can can be reduced, and the environment can be made environmentally friendly when the can is discarded. B. Since the guide is a blade body safety guard positioned in front of the blade body, the risk of injury due to contact with the blade body can be reduced.

According to the fifth aspect of the present invention, since the guide is mainly composed of a bar, there is little fear that the guide will obstruct the operator's view at the time of positioning or cutting the can opener with respect to the can.
The above positioning and cutting can be easily performed. Further, since the portion of the blade body concealed by the guide is small, even when the can opener cleaned with the contents of the can is cleaned after the can canopy is cut, the cleaning can be performed easily and well.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a view taken in the direction of arrow A in FIG. 1;

FIG. 5 is a plan view of FIG. 1;

FIG. 6 is a bottom view of FIG. 1;

FIG. 7 is a vertical sectional view showing a use state of an example of an embodiment of the present invention.

FIG. 8 is a longitudinal sectional view showing a use state of an example of an embodiment of the present invention.

FIG. 9 is a vertical sectional view showing a use state of an example of an embodiment of the present invention.

FIG. 10 is a sectional view taken along line BB of FIG. 8;

11 is a sectional view taken along line CC of FIG. 9;

FIG. 12 is a sectional view taken along line DD in FIG. 11;

FIG. 13 is a perspective view showing a conventional example.

FIG. 14 is a vertical sectional view showing a use state of a conventional example.

FIG. 15 is a vertical sectional view showing a state of use of a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 handle 2 blade 3 guide 4, 5 front / rear pressing body 14 outer peripheral side 15 can 16 canopy 20 outer peripheral surface 26 inner peripheral side 27 opening

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-113293 (JP, A) JP-A 54-118366 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B67B 7/40

Claims (5)

(57) [Claims] 1. A. First Embodiment A handle; It is provided continuously below the handle and has a substantially V shape in front view,
In a can opener having a blade body that is inserted into a can canopy and cuts the canopy, at the back of the blade body, the lower end is higher than the lower end of the blade body, and at least the lower portion is inclined backward, and the canopy 2. A can opener, comprising: a rear pressing body that bends an inner peripheral side downward from a cutting portion formed by a blade body, wherein at least a lower portion of the rear pressing body is curved and convex forward and obliquely upward. 2. The can opener according to claim 1, wherein the rear pressing body is mainly constituted by a pair of right and left bars. 3. A. A handle; It is provided continuously below the handle and has a substantially V shape in front view,
In a can opener having a blade body that is inserted into a can canopy and cuts the canopy, on the left and right sides of the front surface of the blade body, a lower end is positioned higher than a lower end of the blade body, and a cutting portion of the canopy by the blade body An inclined can opener provided with a pair of left and right front pressing bodies that presses and bends the outer peripheral side downward, and each front pressing body shifts outward toward the upper end. 4. The front end of the blade body, the lower end portion is lower than the lower end of the blade body, and when the blade body is inserted into the canopy, it faces or contacts the outer peripheral surface of the can,
The can opener according to any one of claims 1 to 3, further comprising a guide that guides the downward movement of the blade body and also serves as a safety guard for the front surface of the blade body. 5. The can opener according to claim 4, wherein the guide mainly comprises a bar.