JP2530795Y2 - Synthetic resin container handle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle for a synthetic resin container. More specifically, the present invention relates to a transfer rail for transporting a handle at a stage prior to combining the handle with the container body in a container forming process. The handle relates to a handle that prevents the handle from coming off.

[0002]

2. Description of the Related Art A hollow container formed by biaxial stretching blow molding of polyethylene terephthalate has a combination of transparency, gas barrier properties, light weight, impact resistance and moderate rigidity, and is capable of containing a liquid content. Widely used as packaging containers for In this large hollow container,
For ease of handling, a handle formed separately from the container body is provided.

[0003] In order to mold this synthetic resin container with a handle, a handle having an endless grip portion and a mounting portion is formed by injection molding of a synthetic resin, and the handle is inserted into a blow mold and the synthetic resin is molded. Is molded by placing the preform in a blow mold to form a container body and attaching a handle to the container body (Japanese Patent Publication No. 4-3693).
No. 9). In this way, the handles are transported sequentially to the mold in a state where the handle mounting portion is placed on the transport rail so that the handles are formed separately from the container body and then combined with the container body. Is done.

A handle attached to a synthetic resin container comprises an endless mounting portion and an endless grip portion integrally formed by injection molding of synthetic resin, and the grip portion has a vertical portion, an upper curvature portion and a lower curvature portion. Consists of Also, since the gripping portion needs to be adjusted to the shape of the upper surface of the concave portion of the container to be attached, the vertical portion on the upper curvature portion side has a tip portion projecting upward from a position continuous with the attaching portion. .

[0005]

As described above, the handle formed separately from the container main body has a grip portion placed on a transport rail, and is sequentially connected along the transport rail in a daisy chain. The handle is conveyed to the mold so that the handle pushes the front handle, but the tip formed on the grip is
It is easy to move upward along the lower curvature portion of the handle located in front of it, and easily move in a direction deviating from the transport direction. In addition, when the handle is pushed by the rear handle, the handle further deviates from the transport direction, and the pushed handle is not securely transported to the mold because the mounting part is detached from the rail. There was a problem such as stopping.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a handle that can be reliably transported without being detached from the transport rail even when transported in a daisy chain on the transport rail.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and has a structure in which a rear end of a handle and a front end of the handle are lightly engaged during transportation. It is characterized by the following. That is, according to the present invention, in a handle made of a synthetic resin container having an endless mounting portion and an endless grip portion and having a concave portion on a side wall, the mounting portion has a shape similar to a projection provided in the concave portion of the container body. The grip portion is composed of a vertical portion, an upper curvature portion, and a lower curvature portion, and a ring is formed as a whole continuously with the mounting portion via the curvature portion, and an end of the vertical portion on the upper curvature portion side The handle is provided with a tip that projects upward and a concave portion that conforms to the shape of the tip on the lower curvature side of the vertical portion.

[0008]

DETAILED DESCRIPTION OF THE INVENTION In the process of manufacturing a synthetic resin container with a handle, a handle made separately from the container body is shown in FIG.
In the state in which the mounting portion is placed on the rail of the transport portion as shown in (1), the handles sequentially sent out are pushed from behind by the handles located in front, and are transported in a daisy chain. However, since the shape of the lower curvature portion 2 of the handle 1 is upward from the direction of movement of the handle, the tip 3 formed on the grip portion as shown in FIG. When the handle moves along the lower curvature portion 2 and is pushed by the rear handle, the handle further moves in a direction deviating from the transport direction, and eventually comes off the transport portion 4.

In the handle of the present invention, the recess is formed in the lower curvature portion of the grip portion so as to match the tip shape of the vertical portion on the upper curvature portion side, so that the handle is continuous and the rear handle pushes the front handle. Also when moving along the transport rail, the concave portion and the rear end of the handle engage with each other, and the respective handles are connected to each other, so that the front end moves along the lower curvature portion. It is possible to prevent the handle from moving, prevent the propulsive force from the rear from being shifted from the transport direction, and effectively prevent the handle from coming off the transport rail.

[0010]

FIG. 2 is a plan view showing an example of the handle of the present invention.
In FIG. 3 shown in a side view, a handle 1 has a ring-shaped mounting portion 5 which fits into a projection provided in a concave portion which is a handle mounting portion of a container body (not shown), and a grip portion 6. And consists of The grip portion 6 includes a vertical portion 7, a lower curvature portion 2, and an upper curvature portion 8, and is continuous with the mounting portion 5 at the lower curvature portion 2 and the upper curvature portion 8, forming a ring shape. The tip 3 of the vertical portion 7 on the upper curvature portion 8 side has a shape in which the tip protrudes according to the shape of the upper surface of the concave portion of the container to which the handle is to be attached. Also the vertical part 7
The concave portion 9 corresponding to the tip portion 3 is provided on the lower curvature portion 2 side of
Is provided.

In FIG. 4 which is a plan view showing the state in which the handle of the present invention is carried by the carrier rail, and FIG. 5 which is a side view, the carrier rail 4 is mounted such that the grip 6 of the handle hangs downward. The ring of the part 5 is supported and conveyed by the rail 10. A cover 11 is provided above the rail 10 so that the ring of the mounting portion does not protrude. In FIG. 5, the handle 1 is conveyed in the direction of the arrow, but the tip 3A of the grip of the handle 1A fits into the recess 9B of the handle 1B in front of it, and the tip 3B of the handle 1B fits in front of the handle. These fit into the recesses 9C of 1C and are conveyed in a connected state. Therefore, the tip does not move along the lower curved surface, and the handle is reliably transported in the transport direction indicated by the arrow.

As the resin for forming the handle of the present invention, thermoplastic polyesters such as polyethylene terephthalate and polybutylene terephthalate used for forming the container body; polycarbonates; acrylic-butadiene-styrene copolymer; polyacetal resin; And the like. An acrylic resin or the like can be used. In addition to the resin for forming the container body, low-, medium-, high-density polyethylene, polyolefin such as ethylene-propylene copolymer, styrene-butadiene thermoplastic elastomer, etc. Can be used. In addition, various coloring agents, fillers, and the like can be added to the resin as needed.

The handle of the present invention can be formed by injection molding using the above resin. Further, ribs and the like may be provided on the grip portion and the attachment portion to improve strength, and it is of course possible to provide irregularities for preventing slippage. The shape and installation position of the tip and the concave portion can be appropriately changed according to the size and shape of the handle, which are determined by the shape of the container to which the handle of the present invention is applied.

[0014]

According to the present invention, a simple structure is adopted in which a concave portion is provided in the lower curvature portion of the gripping portion in accordance with the tip shape of the vertical portion on the upper curvature portion side, and the handle can be moved along the transport rail. Even when the rear handle is continuously moved so as to push the front handle, the handles are lightly engaged with each other and move, and the propulsive force from the rear moves forward without being shifted from the transport direction. Therefore, the handle does not come off the transfer rail, and problems such as a stop of the production line due to the stay of the handle in the transfer section can be effectively solved.

[Brief description of the drawings]

FIG. 1 is a view showing a conventional handle transport process.

FIG. 2 is a plan view showing an example of the handle of the present invention.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a plan view showing a process of transporting the handle of the present invention.

FIG. 5 is a side view of FIG. 4;

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Handle 2 Lower curvature part 3 Tip part 5 Attachment part 6 Grip part 7 Vertical part 8 Upper curvature part 9 Depression 10 Rail

Claims (1)

(57) [Scope of request for utility model registration] 1. A handle used for a synthetic resin container having an endless mounting portion and an endless grip portion and having a concave portion on a side wall, wherein the mounting portion has a shape similar to a projection provided in a concave portion of the container body. Forming a ring, the grip portion comprising a vertical portion, an upper curvature portion, and a lower curvature portion, forming a ring as a whole continuously with the mounting portion via the curvature portion, and an upper curvature portion side end of the vertical portion; A handle which is provided with a tip that protrudes upward, and a concave portion that conforms to the shape of the tip is provided on the lower curvature portion side of the vertical portion.