JPH0731623U - Can lid - Google Patents

Abstract

(57) [Summary] [Purpose] The shape of the recessed portion of the lid panel is changed to correctly guide the finger-holding position to prevent defective operation of the opening of the can lid such as a broken tab. In a can lid arranged so that a finger hooking portion 9 of a pull tab 4 overlaps a recessed portion 12 formed in the center of a lid body panel 2, a finger hooking region 13 of the finger hooking portion 9 has a predetermined width by a peripheral edge of the recessed portion 12. It is characterized by being regulated. It is characterized in that the rear edge 14 of the recess 12 is extended rearward.
A dimple 15 that supports the lower surface of the finger hook 9 of the pull tab 4 is provided on the bottom surface of the recessed portion 12, and the dimple 15 has a shape protruding outward from the outer peripheral edge of the finger hook 9 by a predetermined width.
It is characterized in that the finger hooking area 13 of the finger hooking portion 9 is regulated by the protruding portion of the dimple 15 from the outer circumference of the finger hooking portion 9. It is characterized in that a mark 16 indicating the raising direction of the finger hook 9 is attached to the recess 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a can lid of an easily opened can that breaks the lid along a score line by a pull tab, and particularly to a technique for preventing oblique opening.

[0002]

[Prior art]

 As a conventional can lid of this kind of easy opening can, for example, there is one as shown in FIG.

That is, reference numeral 100 represents a lid panel of a full-face opening type, and an endless score line 101 is engraved along the entire periphery of the lid panel 100. A pull tab 102 for breaking the score line 101 and performing an opening operation is fixed to a portion surrounded by the score line 101 of the lid panel 100.

The pull tab 102 is a plate member having a substantially elliptical shape and is fixed to the lid panel 100 via a rivet portion 103. A tab nose 104 and a finger hook portion 105 are provided on opposite sides of the rivet portion 103. The tab nose 104 is arranged near the score line 101, and the finger hook 105 is arranged at the center of the panel.

Further, the finger-holding portion 105 is arranged so as to overlap the recessed portion 106 formed in the center of the lid body panel 100 so that the finger can be easily worn. Further, a dimple 107 is provided so as to project so that the finger hooking portion 105 does not come into close contact with the bottom surface of the recessed portion 106, and supports the lower surface of the finger hooking portion 105.

The opening operation is caused by placing a finger on the finger hook portion 105, and this force is boosted by a lever action with the rivet portion 103 as a fulcrum to be transmitted to the tab nose 104, and the tab needle 104 causes the lid body panel 100 to operate. The score line 101 was initially broken by pressing. In the initial breaking of the score line 101, the correct pulling direction of the pull tab is to raise the finger hook portion 105 in the straight line direction connecting the rivet portion 103 and the tab nose 104, as shown by an arrow A in the figure.

[0007]

[Problems to be solved by the device]

 However, in the above-described conventional can lid, since the recessed portion 106 under the pull tab 102 is circular and almost the entire finger-holding portion 105 overlaps, the finger-holding portion 105 has a correct opening direction in the A direction. On the other hand, it was easy for the fingers to enter a wide area in the diagonal direction. As shown by arrows B and C in the figure, when the angle with respect to the correct operation direction A becomes large, the force is not correctly concentrated on the tab nose 104, and the pull tab 102 is bent or the tab is removed, so that the pull tab 102 cannot be opened. There were cases.

[0008] Although there is no problem if the direction of the trigger is careful, general consumers who are not familiar with the method of opening are not aware of the direction of the trigger, and it is customary to perform the opening operation unconsciously. It is difficult to publicize the correct operation for.

The present invention has been made in order to solve the above-mentioned problems of the prior art. The purpose of the present invention is to change the shape of the concave portion of the lid panel so that the pull tab can be correctly guided. To provide a can lid.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, an endless score line is engraved along the entire circumference of the lid panel, and the score line is broken at a portion surrounded by the score line. Is provided with a pull tab for performing an opening operation, and the pull tab includes a fixing portion fixed to the lid panel via a rivet portion, a tab nose located near the score line, and the fixing portion. And a finger hook portion located on the opposite side of the tab nose, and the finger hook portion is arranged so that the finger hook portion overlaps the concave portion formed in the center of the lid panel, and the peripheral edge of the concave portion is hooked with the finger. It is characterized in that the region which intersects with the concave part is limited to a predetermined width in the middle part of the part.

It is characterized in that the rear edge of the recess is extended rearward.

A dimple for supporting the lower surface of the finger hook portion of the pull tab is provided on the bottom surface of the recessed portion, and the dimple has a shape protruding outward from the outer peripheral edge of the finger hook portion by a predetermined width. The feature is that the finger hanging area of the finger hanging part is limited by.

It is characterized in that a mark for instructing the raising direction of the finger hook is attached to the recess.

[0014]

[Action]

 According to the present invention, a finger tab is hung on the finger hook portion that overlaps the recessed portion to raise the pull tab, and the pulling force exerted on the finger hook portion by the lever action with the rivet portion as a fulcrum is doubled to be transmitted to the tab nose to cover the lid. Break the score line on the body panel.

Since the peripheral edge of the recessed portion is intersected at a midway position of the finger-holding portion to limit the overlapping area of the recessed portion to a predetermined width, the peripheral portion of the recessed portion interferes with the finger-covered area and the vicinity of the center of the finger-holding portion. Limited to.

If the rear edge of the recessed portion is extended rearward, it is easy for the finger to be caught, and the operability can be improved.

If the dimple is formed in a shape protruding from the outer circumference of the finger-holding portion, it is difficult for the finger to hit the dimple and the finger-hanging area can be limited to a more appropriate range.

Furthermore, by attaching a mark, attention is visually drawn to the lifting direction, and a psychological effect is also exerted to allow the opening from the correct direction.

[0019]

【Example】

 The present invention will be described below based on the illustrated embodiment.

In FIG. 1 showing a can lid according to an embodiment of the present invention, reference numeral 1 denotes a full open type can lid having an easy opening. The can lid 1 generally includes a lid panel 2, a winding flange 3 provided around the lid panel 2, and a pull tab 4 attached to the lid panel 2. The lid panel 2 has a circular shape, and an endless score line 5 is engraved on the outer peripheral edge of the lid panel 2, and the plu-tab 4 is provided in a portion surrounded by the score line 5.

The pull tab 4 includes a fixing portion 7 fixed to the lid panel 2 via a rivet portion 6, a tab nose 8 positioned near the score line 5, and a tab nose 8 opposite to the fixing portion 7. The finger hook portion 9 is provided. The pull tab 4 is basically integrally formed by a plate-like body having rigidity from the finger hook portion 9 to the tab nose 8. The pull tab 4 is formed on the finger hook portion 9 side of the rivet portion 6 in order to facilitate the raising operation. 0 is formed. The portion of the score line 5 that is close to the tab nose 8 is a straight portion 11 that is orthogonal to the central axis of the pull tab 4 so that the initial breakage is easy.

The finger hooking portion 9 is formed in an annular shape having a size such that a finger can be hooked on the inner peripheral edge thereof, and the end portion on the side of the fixed portion 7 is integrally connected to the fixed portion 7.

On the other hand, a concave portion 12 is formed in the center of the lid panel 2 in order to enhance the surface rigidity of the panel, and the finger hook portion 9 of the pull tab 4 is arranged so as to overlap with the concave portion 12. There is. The recess 12 is formed mainly to increase the surface rigidity of the can lid of the negative pressure can such that the inside of the can has a negative pressure.

In this embodiment, the concave portion 12 has an oval or track shape, and is arranged so that its major axis overlaps with the diameter line X of the lid panel 2 passing through the center of the straight portion of the score line 5. . The center point Or of the rivet portion 6 of the pull tab 4 is also located on this diameter line X, and the center On of the tab nose 8 and the center Of of the finger hook portion 9 are also arranged on this diameter line X.

The finger hook portion 9 of the pull tab 4 is arranged so as to overlap the recessed portion 12. The peripheral edge of the recessed portion 12 is intersected with the middle position of the finger hook portion 9, and the peripheral edge of the recessed portion 12 causes the finger hook portion 9 to finger. The range over is limited. That is, in this embodiment, by narrowing the width of the recessed portion 12, as shown in FIG. 2A, finger hooking from the B and C directions in the figure is restricted. This regulation range is appropriately set in consideration of the shapes and strengths of the pull tab 4 and the lid panel.

The width of the recess 12 in the minor axis direction is formed to be substantially the same as the width of the finger hook 9 of the pull tab 4, and the center Oc of the recess 12 is further extended along the diameter line X to cover the panel panel. If the end edge of the concave portion 12 on the side close to the rivet portion 6 is the front edge, the rear edge portion 14 on the opposite side is rearward. The distance between the trailing edge 14 and the finger hook 9 of the pull tab 4 is widened to improve the finger hook.

In addition, a pair of dimples 15 and 15 supporting the lower surface of the finger hook 9 are provided on the bottom surface of the recess 12 so that the finger hook 9 of the pull tab 4 does not come into close contact with the bottom surface of the recess 12. ing. A pair of left and right dimples 15 and 15 are provided in line-symmetrical positions with respect to the diameter line X. The dimples 15 and 15 are circular protrusions having a diameter larger than the width of the ring forming the finger hook 9, and the center positions Od and Od of the dimples 15 and 15 are displaced to the outer peripheral side of the ring. As a result, the dimples 15 and 15 protrude outward from the outer peripheral edge of the finger hook 9 by a predetermined width. The range of the dimples 15, 15 protruding from the outer circumference of the finger hooking portion 9 also limits the range of the finger hooking portion 9 on which the finger is hooked. Further, as shown in FIGS. 3 (a) and 3 (b), R on the projecting side of the dimples 15 and 15 is also made larger than R'of the conventional dimple 107, so that a voluminous feel is made to stand out.

Further, between the finger hook portion 9 on the bottom surface of the recessed portion 12 and the rear edge portion 14 of the recessed portion 12 and between the pair of left and right dimples 15, 15, a mark for indicating the pulling direction of the pull tab 4 is provided. 16 is attached. The mark 16 is an arrow in this embodiment, and is formed by unevenness on the bottom surface of the recess 12.

In the can lid having the above structure, the finger tab 9 that overlaps the recess 12 is put on a finger to raise the pull tab 4. This inducing force is boosted by the lever action using the rivet portion 6 as a fulcrum and transmitted as a pressing force for pressing the lid body panel 2 of the tab nose 8, and as shown in FIG. The initial cut is made from the straight line portion 11 of the score line 5. After the initial breakage, the pull tab 4 is pulled up to remove the lid panel 2 along the score line 5.

At the time of the initial opening operation, the finger hooking area 13 of the finger hooking portion 9 is regulated to have a predetermined width by the peripheral edge of the recessed portion 12, so that the finger hooks from the B and C directions as shown in FIG. 2A. Since it is difficult to lift, the lifting force of the pull tab 4 can be concentrated on the breaking force of the tab nose 8. However, since the rear edge portion 14 of the recessed portion 12 extends rearward, it is easy for a finger to hang on, and the operability is good.

Further, since there is the dimple 15, it is difficult for the finger to be hung from the intermediate B ′ and C ′ directions in FIG. 2A.

Further, by attaching the mark 16, it is possible to visually call attention to the lifting direction, and the user also has a psychological effect to open from the correct A direction.

[0033]

[Effect of device]

 The present invention has the above-described configuration and operation.Because the peripheral edge of the recessed portion is intersected at the middle position of the finger-holding portion and the range where the recessed portion overlaps is regulated to a predetermined width, the range where the finger is applied is limited. It is possible to prevent tab breakage or tab breakage due to the fact that the area around the center of the finger rest is obstructed by the peripheral edge of the recessed portion and the area over which the finger rests is wide as in the past.

Further, if the rear edge of the recessed portion is extended rearward, it is easy for a finger to be caught, and operability can be improved.

Furthermore, if the size of the dimples is set to extend beyond the outer circumference of the finger-holding portion, it is difficult for the dimples to catch the finger, and the range where the finger is applied to the finger-hooking portion can be limited to a more appropriate range.

Furthermore, by attaching a mark, it is possible to visually call attention to the finger hanging position.

[Brief description of drawings]

FIG. 1 shows a can lid according to an embodiment of the present invention. FIG. 1 (a) is a plan view and FIG. 1 (b) is a longitudinal sectional view.

2 (a) is an explanatory view of an opening operation direction of the can lid of FIG. 1, and FIG. 2 (b) is a longitudinal sectional view showing an opened state of the can lid at the time of initial opening.

3A and 3B show a comparison of the dimple shape of the present invention and the conventional can lid. FIG. 3A is a plan view showing the entire pull tab, and FIG. 3B is an enlarged sectional view of the dimple portion. Is.

FIG. 4 is a plan view of a conventional can lid.

[Explanation of symbols]

 1 can lid 2 lid panel 4 pull tab 5 score line 6 rivet part 8 tab nose 9 finger hanging part 12 concave part 14 trailing edge part 15 dimples 16 mark X diameter line 0f finger hanging part center Oc concave part center O lid panel center Od dimple center

Claims (4)

[Scope of utility model registration request] 1. An endless score line is engraved along the entire periphery of the lid panel, and a pull tab for breaking the score line to perform an opening operation is provided at a portion surrounded by the score line. The pull tab includes a fixing portion fixed to the lid panel via a rivet portion, a tab nose located near the score line, and a finger hooking portion located on the opposite side of the fixing portion from the tab nose. In the can lid in which the finger hooking portion is arranged so as to overlap with the recessed portion formed in the center of the lid body panel, a region where the peripheral edge of the recessed portion intersects with the middle portion of the finger hooking portion and overlaps with the recessed portion. A can lid characterized by limiting the width to a predetermined width. 2. The can lid according to claim 1, wherein a rear edge portion of the recess is extended rearward. 3. A dimple that supports the lower surface of the finger-holding portion of the pull tab is projected on the bottom surface of the recessed portion, and the dimple has a shape protruding outward from the outer peripheral edge of the finger-holding portion by a predetermined width. The can lid according to claim 1 or 2, wherein the finger-hooking range of the finger-hooking part is regulated by the part. 4. A can lid characterized in that a mark for indicating a correct raising direction of a finger hook portion is attached to the concave portion.