JP4967300B2 - container - Google Patents

Description

  According to the present invention, on the outer periphery of the cylindrical portion that forms the spout, a screw thread that engages with the cap, a cap tightening screw formed below the screw thread, and a neck ring formed below the turnip The present invention relates to a container such as a PET bottle, and more particularly to a container that is delivered by a gripper in a filling and sealing line.

  A container such as a plastic bottle filled with a beverage product or the like is obtained by heating a preformed body called a preform and biaxially stretching in a mold. Since this type of biaxially stretched blow-molded container has various shapes by changing the shape of the mold, it can meet a wide range of customer demands.

  By the way, filling of the contents into the container and sealing with a cap are performed by a filling / sealing line equipped with a processing machine such as a filling machine (filler) and a sealing machine (capper). Belt conveyors are used to transport containers in the filling / sealing line, but individual containers are in a free state in conveyor transport, so containers may collide with each other due to vibrations and cause deformation such as dents. There is sex.

  In addition, in order to prevent collision between containers, a transport device that grips the body of the container is also known, but in this type of transport device, a gripping jig corresponding to the shape of the body of the container is required. Therefore, not only is the cost high, but there is a problem that it is necessary to renew the transport device every time the body shape of the container changes, which is troublesome.

  In view of this, it has been proposed to use a neck ring (support ring) formed on the neck portion of the container or a cap winding cap to carry and deliver the container (see, for example, Patent Document 1). That is, a container such as a PET bottle is usually formed on the outer periphery of a cylindrical portion 101 that forms the spout 100 and a screw thread 103 that is screwed with the cap 102 and below the screw thread 103, as shown in FIG. 5 and a neck ring 105 formed below the cabra 104, two grip portions are secured above and below the neck ring 105, and a gripper 106 as shown in FIG. , 107 enables delivery of containers.

Usually, in many containers such as PET bottles, the cylindrical portion 101 has a common shape and diameter, so according to the above transport / delivery method, without updating the gripper each time the barrel shape of the container changes, A common gripper can be used, and as a result, an increase in cost and labor associated with the renewal of the holding jig can be avoided.
JP-A-11-236123

  However, there is a problem that the above-mentioned transport / delivery method becomes difficult to apply after the cap 102 is tightened. That is, as shown in FIG. 4, when the cap 102 is screwed into the cylindrical portion 101 of the container and the unopened ring 102a of the skirt portion is wound around the turnip 104, the turnip 104 and the lower side thereof are the unopened ring of the cap 102. Since it is covered with 102a, it becomes difficult to grip the upper part of the neck ring 105 with the gripper 106 (107).

  The present invention has been considered in view of the above circumstances, and provides a container that can be gripped with a gripper above and below the neck ring and can be transported and delivered by the gripper even after the cap is tightened. With the goal.

In order to achieve the above object, the container of the present invention includes a screw thread that engages with a cap on the outer periphery of a cylindrical portion that forms a spout, a cap-tightening cap formed below the screw thread, and a lower portion of the capra. The neck ring is formed in a shape that can be gripped by a gripper, and the cap is interposed between the turnip and the neck ring even after the cap is tightened. A portion that is not covered is formed, and a protrusion that can be gripped by a gripper is formed on this portion, and after the cap is tightened, the neck ring and the protrusion can be gripped simultaneously by the respective grippers .
In this way, even after the cap has been tightened, portions that can be gripped by the gripper are secured above and below the neck ring, so that conveyance and delivery by the gripper are possible.

Moreover, the container of this invention is made into the ring shape in which the said protrusion continues in the circumferential direction.
In this way, since the protrusion has a ring shape similar to that of the turnip or neck ring, the container can be transported and delivered using an existing gripper.

Moreover, the container of this invention is set as the structure by which the said protrusion is provided with the outer peripheral surface which stands | starts up vertically from a horizontal lower surface.
In this case, since the inclination of the container during the transportation can be suppressed by supporting the lower surface and the outer peripheral surface of the protrusion with the gripper, the influence of the centrifugal force during the transportation can be reduced and the stable transportation can be performed. .

In the container of the present invention, the protrusion has an outer peripheral surface that rises in an inclined manner from a horizontal lower surface, and the rising angle is 35 ° to 85 °.
In this case, since the inclination of the container during the transportation can be suppressed by supporting the lower surface and the outer peripheral surface of the protrusion with the gripper, the influence of the centrifugal force during the transportation can be reduced and the stable transportation can be performed. . Moreover, since the rising angle of the outer peripheral surface is set to 35 ° to 85 °, the outer peripheral surface of the protrusion can be pressed from above with the gripper, and the protrusion of the protrusion on the gripper can be reliably prevented.

  As described above, according to the present invention, since the protrusion that can be gripped by the gripper is provided between the turnip and the neck ring even after the cap is tightened, even in the state after the cap is tightened. It is possible to secure locations where the gripper can be gripped above and below the neck ring, and to carry and transfer the gripper.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a front view showing a cylindrical portion of a container according to an embodiment of the present invention, FIG. 2 is an explanatory view showing delivery by a gripper of the container according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. It is explanatory drawing which shows the protrusion shape of the container which concerns on.
As shown in FIG. 1, a container according to an embodiment of the present invention is similar to a conventional container in that a thread 4 that is screwed with a cap 3 and a thread 4 on the outer periphery of a cylindrical portion 2 that forms a spout 1. The cap 5 for tightening the cap is formed below, and the neck ring 6 is formed below the turn 5.

The cap 3 is provided with a thread groove (not shown) that can be screwed with the screw thread 4 on the inner peripheral surface, and an unopened ring 3a that can be separated into the skirt portion. A large number of pleats (not shown) are formed on the inner peripheral surface of the unopened ring 3a, which are collapsed at the time of winding and are opened at the time of opening.
The turntable 5 is a ring-shaped protrusion (flange) whose lower surface is horizontal and whose upper surface is inclined, and allows the unopened ring 3a to be moved over when the cap 3 is tightened, while the cap 3 is not opened. By restricting the opening of the opening ring 3a, the unopened ring 3a is separated from the cap 3 when the cap is opened.
The neck ring 6 is a ring-shaped protrusion (flange) that is continuous in the circumferential direction, and can be gripped by the gripper 7 when the container is transported or delivered.

  The container according to the embodiment of the present invention is different from the conventional container in that a protrusion 9 that can be gripped by the gripper 8 is provided between the turnip 5 and the neck ring 6 even after the cap 3 is tightened. Yes. Specifically, a portion that is not covered with the cap 3 is secured between the turnip 5 and the neck ring 6, and a protrusion 9 is formed in this portion. In this way, as shown in FIG. 2, even after the cap 3 is tightened, portions that can be gripped by the grippers 7 and 8 are secured above and below the neck ring 6. Can be transported and delivered.

  The shape of the protrusion 9 is not limited as long as it can be gripped by the gripper 8, but a ring shape (flange shape) continuous in the circumferential direction is preferable. In this way, since the protrusion 9 has a ring shape similar to that of the turnip 5 and the neck ring 6, the existing grippers 7 and 8 can be used to carry and transfer the container.

  The gripper 8 that grips the protrusion 9 preferably has a shape that can support not only the horizontal lower surface 9 a of the protrusion 9 but also the outer peripheral surface 9 b of the protrusion 9. That is, the cylindrical portion 2 where the protrusions 9 are formed is a portion having a small diameter in the container, and requires a larger gripping force compared to the case of gripping the trunk portion, particularly after the contents are filled. If so, the centrifugal force works strongly, and the container being transported may be inclined. Therefore, it is preferable to support the lower surface 9a and the outer peripheral surface 9b of the protrusion 9 with the gripper 8 to suppress the inclination of the container during conveyance.

  When the outer peripheral surface 9b of the protrusion 9 is supported by the gripper 8, it is preferable that the rising angle of the outer peripheral surface 9b with respect to the lower surface 9a of the protrusion 9 does not exceed 90 °. This is because if the rising angle exceeds 90 °, the protrusion 9 can easily ride on the gripper 8 by the inclined guide on the outer peripheral surface 9b when centrifugal force is applied to the container.

  That is, as shown in FIG. 3A, when the outer peripheral surface 9b of the protrusion 9 is a vertical surface, the inclination of the container during conveyance can be suppressed while avoiding the disadvantage that the protrusion 9 rides on the gripper 8. Thus, it is possible to reduce the influence of centrifugal force during the conveyance and to carry out the stable conveyance.

As shown in FIG. 3B, when the outer peripheral surface 9b of the protrusion 9 is an inclined surface having a rising angle of 35 ° to 85 °, the outer peripheral surface 9b of the protrusion 9 is pressed from above by the gripper 8. Therefore, even if the centrifugal force works, it is possible to reliably restrict the protrusion 9 from climbing on the gripper 8.
In addition, the outer peripheral surface of the protrusion 9 can be partly vertical, and the other part can be an inclined surface having a rising angle of 35 ° to 85 °. In this case as well, the embodiment shown in FIG. The same effect as the case is produced.

  The container of the present embodiment configured as described above includes a thread 4 that is screwed with the cap 3 on the outer periphery of the cylindrical portion 2 that forms the spout 1, and a cap winding that is formed below the thread 4. A gripper 8 and a neck ring 6 formed below the turnip 5 are gripped by the gripper 8 between the turnip 5 and the neck ring 6 even after the cap 3 is wound. Since the projections 9 are provided, even after the cap 3 is tightened, the grippers 7 and 8 can be secured on the top and bottom of the neck ring 6 so that the grippers 7 and 8 can be conveyed and delivered. .

  Further, when the protrusion 9 is formed in a ring shape that is continuous in the circumferential direction, the protrusion 9 has the same shape as the turnip 5 and the neck ring 6, so the existing grippers 7 and 8 are used to transport and transfer the container. It can be carried out.

  By the way, the protrusion 9 can be increased in outer diameter as long as it does not interfere with gripping by the gripper 8 and when the contents are poured out. Is possible. When the outer diameter of the protrusion 9 is increased in this way, the container can be stably transported only by supporting the lower surface of the protrusion 9 with the gripper 8. Therefore, in such a case, the importance of the shape of the outer peripheral surface 9b of the protrusion 9 decreases.

  Further, the protrusion 9 does not necessarily have a continuous ring shape as long as there is no hindrance to gripping by the gripper 8, and may be a protrusion intermittent in the circumferential direction.

  According to the present invention, on the outer periphery of the cylindrical portion that forms the spout, a screw thread that engages with the cap, a cap tightening screw formed below the screw thread, and a neck ring formed below the turnip It can be applied to containers such as provided PET bottles, and is particularly suitable for containers that are delivered by a gripper in a filling / sealing line or the like.

It is a front view which shows the cylindrical part of the container which concerns on embodiment of this invention. It is explanatory drawing which shows delivery by the gripper of the container which concerns on embodiment of this invention. It is explanatory drawing which shows the protrusion shape of the container which concerns on embodiment of this invention. It is a front view which shows the cylindrical part of the container which concerns on a prior art example. It is explanatory drawing which shows delivery by the gripper of the container which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spout 2 Cylindrical part 3 Cap 3a Unopened ring 4 Thread 5 Cabra 6 Neck ring 7 Gripper 8 Gripper 9 Protrusion 9a Lower surface 9 Outer surface 100 Spout 101 Cylindrical part 102 Cap 102a Unopened ring 103 Thread 104 Cabra 105 Neck Ring 106 Gripper

Claims (4)

It is a container provided on the outer periphery of a cylindrical part forming a spout with a screw thread that is screwed with a cap, a cap winding cap formed below the screw thread, and a neck ring formed below the turnip. And
The neck ring has a shape that can be gripped by a gripper,
Forming a portion that is not covered with the cap even after the cap is tightened between the turnip and the neck ring, and forming a protrusion that can be gripped with a gripper in this portion,
A container characterized in that the neck ring and the protrusion can be gripped simultaneously by respective grippers after the cap is tightened.   The container according to claim 1, wherein the protrusion has a ring shape continuous in the circumferential direction.   The container according to claim 1, wherein the protrusion includes an outer peripheral surface that rises vertically from a horizontal lower surface.   The container according to claim 1, wherein the protrusion has an outer peripheral surface that rises in an inclined manner from a horizontal lower surface, and the rising angle is 35 ° to 85 °.

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