JP3135530U - Plastic bottle cap opener - Google Patents

Abstract

A cap opener for a plastic bottle that does not slip when opened and is easy to use.
A plastic bottle cap opener is provided with a plurality of openings on the side inserted into a plastic bottle cap, and a plurality of holes on the inner periphery of the hole. The fitting part 9 is provided with a concavo-convex part 8 having a pitch different from the concavo-convex pitch on the side surface of the cap, and the grip part 6 is formed in the shape of a mascot surrounding the fitting part and extending in one direction.
[Selection] Figure 1

Description

  The present invention relates to a cap opener, and more particularly, to a cap opener that can easily open a cap of a plastic bottle and does not slip even when force is applied.

  In general, as shown in FIG. 8, the cap of a plastic bottle is provided with unevenness 10 by vertical lines on the side surface. For example, the cap 1 of the PET bottle 3 having a capacity of 345 ml has a diameter of the upper part (indicated by a) of 29.5 mm, a central part (indicated by b) of 30.1 mm, and a lower part (indicated by c). The diameter is 29.8 mm, the ridge portion (indicated by d) is 30.5 mm, the height is 14.5 mm, and the total number of vertical lines of the irregularities 10 is 120. In some cases, the number of vertical lines is 60 caps. Accordingly, the pitch of the vertical lines of the unevenness 10 is 3 degrees / line for 120 lines and 6 degrees / line for 60 lines. The ring part 2 of the cap 1 can rotate but does not move upward. Therefore, when the cap 1 is opened, when the cap 1 is turned counterclockwise, the cap 1 is torn off from the ring part 2 connected in a spot manner. . Therefore, considerable force is required to turn the cap 1. In other cap examples, a is 29.4 mm, b is 30.0 mm, c is 29.4 mm, d is 30.8 mm, and the outer dimensions of the cap are not necessarily unified.

PET bottle cap openers that can be opened easily with a small force have been proposed. The cap opener of Patent Document 1 is a round lid type whose outer shape is enlarged to the body diameter of a PET bottle, and the inner fitting hole is provided with vertical unevenness over the entire circumference. In the cap opener of Patent Document 2, a rotation handle (handle) is provided in the hole, and vertical line irregularities are provided on the entire inner periphery of the hole.
Registered Utility Model No. 3119832 JP 2004-203478 A

  FIG. 9 is an explanatory diagram showing a relationship between a general cap and a cap opener. The cap 1 and the cap opener 20 in FIG. 8 are actually arc-shaped, but are drawn horizontally here. Since the cap opener 20 in FIG. 9A has no irregularities on the inner peripheral surface of the hole, even if it is tightly pressed, if it is turned in the direction indicated by the arrow for opening, it tends to slip. The cap opener 20 in FIG. 9 (B) is provided with unevenness that matches the uneven pitch of the cap 1 on the inner periphery of the hole, so that the fitting is more reliable, but the height of the unevenness is still about 0.2 mm. If it rotates with force, it will slip. The cap opener 20 in FIG. 9C increases the height of the unevenness to reduce the inner diameter of the cap 1 to be fitted to the cap 1, thereby increasing the adhesion. However, since the cap 1 has 120 unevenness, It becomes difficult to attach the opener 20 to the cap 1 itself. Since the pitch of the unevenness is small, there is a problem that accuracy cannot be ensured when manufacturing with a mold using resin.

  An object of the present invention is to provide a cap opener for a plastic bottle that does not slip when opened and is easy to use. The target is a cap having an outer diameter of about 30 mm and having 50 to 130 side surface irregularities.

  In order to achieve the above object, a cap opener for a plastic bottle according to claim 1 according to the present invention is characterized in that the opening on the side inserted into the cap of the plastic bottle has a hole that is inclined and spreads outward. A fitting portion provided at a plurality of locations on the inner periphery of the hole and having a concave and convex portion having a pitch different from the concave and convex pitch on the side surface of the cap, and a mascot extending in one direction provided so as to surround the fitting portion And a grip portion taken off.

  The invention of claim 2 is characterized in that the grip portion is provided with protrusions on the left and right.

  The invention of claim 3 is characterized in that a plate body on which the fitting portion is formed and a plate body on which the grip portion is formed are combined.

  According to the cap opener for a PET bottle according to the first aspect of the present invention, since the opening portion extends outward, the first insertion into the cap of the PET bottle is easy. When the concave and convex portions on the inner periphery of the hole come into contact with the concave and convex portions on the side surface of the cap, the cap opener is inserted, but the pitch of the concave and convex portions is different from the pitch of the concave and convex portions of the cap. Rather, moderate adhesion can be obtained by pushing. There is no slipping when turning with moderate adhesion. Since the concavo-convex portions are arranged at a plurality of locations on the inner periphery of the hole, it is possible to apply force evenly in the tangential direction. The mascot-shaped grip is excellent in design.

  According to the second aspect, when the grip portion is gripped with the right hand, a finger can be put on the protruding portion. You can also put your finger on the grip when you hold it with your left hand. The left and right protrusions correspond to both right-handed and left-handed.

  According to the third aspect, since the plate body of the fitting portion can be made common even if the plate body of the grip portion formed of the mascot is changed, it is suitable for small-quantity multi-product production. Further, the mascot can be printed on the entire front surface of the grip portion and is not lost in the hole.

  Hereinafter, a PET bottle cap opener according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a cap opener for a plastic bottle according to the present invention. The cap opener 20 is a single plate, and has a fitting portion 9 including a hole 5 to be fitted into a cap of a plastic bottle on the lower side. The hole 5 is a through hole. A mascot grip portion 6 shaped like a small animal or doll is provided so as to surround the fitting portion 9. The grip portion 6 can express corporate characters and the like, and can increase the advertising effect. On the lower side of the hole 5, the direction of turning when the cap is opened is marked with an arrow. The concavo-convex portion 8 is provided on the inner periphery of the hole 5, and a plurality of concavo-convex portions are formed. A pair of protrusions 7a to 7d is provided on the left and right. However, it is not limited to a pair. The protrusions 7a and 7b can be expressed by mascot feet or shoes. The protrusions 7c and 7d can be expressed by mascot ears or hands. The ball chain 13 is attached to the upper part of the cap opener 20 so that it can be carried.

  When the grip part 6 is gripped with the right hand, the thumb can be put on the protruding part 7b. For example, the index finger, the middle finger, and the ring finger are sandwiched between the protruding part 7a and the protruding part 7c. When the grip part 6 is gripped with the left hand, the projecting parts 7a, 7b, 7d can be used in reverse. Therefore, the cap opener 20 can be easily grasped by adding the thumb and can be easily rotated. In addition, the dimension and shape of a protrusion part can be arbitrarily changed according to a mascot. In the present embodiment, as an example, the dimensions of the cap opener are 80 mm for the vertically long (up and down), 61 mm for the horizontal (left and right), and 4 mm for the thickness.

  FIG. 2 is a plan view of the hole portion of FIG. In the hole 5, three uneven portions 8 are arranged at equal intervals on the inner periphery. In this example, the uneven portion 8 occupies a region of 70 degrees in terms of angle. In addition, the uneven | corrugated | grooved part 8 is good also as not only three places but two places or four places. Here, the uneven portion 8 is provided with 14 tooth-shaped uneven portions 10. One unevenness 10 occupies an area of 5 degrees. D <b> 1 indicates the diameter at the valley of the unevenness of the opening 4 at the back (back surface) of the hole 5. D2 indicates the diameter of the crest of the opening 4 at the back (back surface) of the hole 5 at the unevenness. D <b> 3 indicates the diameter of the uneven peak in front (surface) of the hole 5. D4 indicates the diameter of the concave and convex valleys in front of the hole 5 (surface). D1 was 30.8 mm, D2 was 29.6 mm, D3 was 29.0 mm, and D4 was 29.6 mm. If the diameter a of the cap 1 of the PET bottle 3 is 29.5 mm, D2 is 29.6 mm, which is 0.1 mm larger than this, so that the hole 5 can be easily inserted into the cap 1. If the diameter b of the cap 1 is 30.1 mm, there is an overlap of 0.5 mm with D2. Therefore, it becomes so tight that the cache opener 20 is inserted into the cap 1.

  FIG. 3 is a cross-sectional view taken along the line AA of FIG. The hole 5 of the fitting portion 9 can be manufactured by drilling or molding a plate. The opening 4 was formed so as to be inclined and spread outward on the rear side.

  FIG. 4 is an explanatory view showing a fitting relationship between a cap opener and a cap according to the present invention. The cap 1 in FIG. 4A is a case where the pitch of the unevenness is 3 degrees (about 0.79 mm) in terms of angle. The cap 1 in FIG. 4B is a case where the pitch of the unevenness is 6 degrees (about 1.57 mm) in terms of angle. On the other hand, the uneven pitch of the cap opener 20 is 5 degrees (about 0.97 mm). That is, it was set to 5 degrees different from 3 degrees and 6 degrees. For this reason, when the cap opener 20 is fitted to the cap 1, there is a place where one projection and the other projection collide with each other. The mating location varies depending on the pitch. Therefore, since the convex part of the unevenness 10 of the cap opener 20 is pushed outward, the cap opener 20 and the cap 1 are reliably fitted by the reaction force. Therefore, for example, even if the cap opener 20 is opened in the direction indicated by the arrow, the cap opener 20 does not slip.

  5 to 7 show other configuration examples according to the present invention. FIG. 5 is a perspective view seen from the front. FIG. 6 is a perspective view seen from the back side. FIG. 7 is a side view. The cap opener 20 of this configuration example includes a plate body 14 serving as a fitting portion and a plate body 14 serving as a grip portion. As shown in FIG. 7, the cap opener 20 here is configured by combining a plate body 14 serving as a fitting portion and a plate body 15 serving as a grip portion. The plate 15 serving as the grip portion can be manufactured with a metal of 2 mm, and with an acrylic decorative plate of 3 mm or more. The thickness of the plate 14 serving as the fitting portion is about 4 mm. Therefore, the total thickness is 6 to 7 mm, which is thicker than in the case of FIG. However, the strength is increased accordingly and the whole can be reduced. The plate 14 and the plate 15 can be joined with an adhesive. Alternatively, the plate member 14 may be incorporated into the acrylic plate member 15 and integrally formed with a mold. Since the plate 15 does not require holes, the mascot can be printed over the entire front surface.

  The present invention is suitable as a cap opener for a plastic bottle that can be carried in a pocket.

1 is a perspective view of a cap opener according to the present invention. Example 1 It is a top view of the hole part of FIG. Example 1 It is AA sectional drawing of FIG. Example 1 It is explanatory drawing which shows the fitting relationship of the cap opener and cap by this invention. (A) is a figure which shows the fitting relationship of a cap with 120 unevenness / circumference, and a cap opener, (B) is a figure which shows the fitting relationship between a cap with 60 unevenness / circumference, and a cap opener. It is the perspective view seen from the front with the cap opener which consists of the board body of a fitting part, and the board body of a grip part by the other structural example by this invention. Example 1 It is the perspective view seen from the back surface of FIG. Example 1 FIG. 6 is a side view of FIG. 5. Example 1 It is a front view of a general plastic bottle. It is explanatory drawing which shows the fitting relation of a general cap opener and a cap. (A) is the case of a cap opener without unevenness, (B) is the case of a cap opener in which the shape of the unevenness is matched with the unevenness of the cap, and (C) is the case of a cap opener with the protruding portion of (B) being elongated. Show.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap 2 Ring part 3 PET bottle 4 Opening part 5 Hole 6 Grip part 7a, 7b, 7c, 7d Protrusion part 8 Concave part 9 Fitting part 10 Convex part 13 Ball chain 14 Plate body used as a fitting part 15 Grip part Plate 20 Cap opener

Claims (3)

Openings on the side to be inserted into the cap of the PET bottle are provided at a plurality of holes on the inner periphery of the hole inclined and widened toward the outside, and unevenness with a pitch different from the uneven pitch on the side of the cap A fitting portion comprising a portion,
A cap opener for a PET bottle, comprising: a grip portion formed in a unidirectionally extending mascot provided so as to surround the fitting portion.   The cap opener for a plastic bottle according to claim 1, wherein the grip portion has left and right protrusions.   The plastic bottle cap opener according to claim 1, wherein the plate body on which the fitting portion is formed and the plate body on which the grip portion is formed are combined.

Images