JPH10147359A - Packing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing with high sealability through which liq. or gas does not penetrate even when external environment is severe. SOLUTION: This packing 3 is inserted into a sealed channel 2 formed approximately into a U-shape in its cross section with an outer edge part provided along the outer periphery of a lid 1 of a container, an inner edge part and a bottom part connecting the outer edge part and the inner edge part, and the cross section is formed approximately into a U-shape with the inner sealed part 8 being brought into contact with an inner edge part, the outer sealed part 7 being brought into contact with an outer edge part and a connecting part 9 being brought into contact with the bottom part and connecting the inner sealed part and the outer sealed part when it is inserted into a sealed channel. In this case, a projection 10 is formed inward on the outer sealed part 7 and an approximately central part is hung down and forms a circular-arc gap or recessed part between the bottom part and the connecting part and by pushing the connecting part 9 with the edge of a container, the projection is brought into press-contact with the container to improve sealability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a packing for preventing water from entering a container from the outside.

[0002]

2. Description of the Related Art Generally, in order to prevent water from entering a container from the outside, the container is sealed or hermetically sealed by some method. In many cases, a method of sandwiching a packing between a container and a lid is employed. Have been. There are various shapes, for example, a type in which a flat packing is simply attached to a lid, and a type in which a groove is formed in a packing to prevent liquid or gas from leaking.

[0003] As such a conventional packing, for example, there is one as shown in FIG. FIG. 4 is a cross-sectional view of a packing having a U-shaped cross-sectional structure in which a U-shaped groove is formed in a lid of a container and fitted into the groove as an example of a conventional packing. Hereinafter, the configuration of the conventional packing will be described with reference to FIG.

[0004] In Fig. 4, reference numeral 1 denotes a round lid of a container to be sealed over a container (Fig. 1), and 2 denotes a seal for inserting a packing 18 provided along the outer periphery of the lid 1 for sealing. The groove 4 is an outer edge constituting the outer edge of the sealing groove 2, the inner edge 5 constituting the inner edge of the sealing groove 2, and the outer groove 4 and the inner edge 5 are connected to form the sealing groove 2. A bottom portion formed in a U-shape, 12 is an edge of a container for accommodating a liquid or a gas which needs sealing, and 18 is a U-shape formed in a U-shape.
This is a packing that is inserted into the sealing groove 2 to seal the rim 12 of the container.

[0005] When the packing 18 having such a sectional structure is inserted into the sealing groove 2 provided along the outer periphery of the lid 1 and the container is closed with the lid 1, as shown in FIG. 18, each part of the U-shaped packing 18 is pressed against the outer edge 4, the inner edge 5, and the bottom 6 of the corresponding sealing groove 2 of the container,
The inside of the container is sealed from the outside.

[0006]

The conventional packing as shown in FIG. 4 as described above, while fulfilling a sufficiently excellent sealing function, is particularly severe in the external environment.
For example, when used for sealing boat lights and the like, there is a problem that seawater infiltrates into the boat lights.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a highly sealed packing in which a liquid or gas does not permeate through the packing even in a severe external environment. And

[0008]

The packing according to the present invention has a substantially U-shaped cross section by an outer edge, an inner edge, and a bottom connecting the outer edge and the inner edge provided along the outer periphery of the container lid. It is fitted in the formed sealing groove, and when fitted in the sealing groove, the inner sealing portion inscribed at one end with the inner edge portion and the outer sealing portion inscribed with the outer edge portion at the other end, and the inner sealing portion inscribed with the bottom portion. A packing having a substantially U-shaped cross section formed by a connecting portion connecting the inner sealing portion and the outer sealing portion, wherein the outer sealing portion has a projection directed toward the inside, and has a substantially central portion of the connecting portion. The portion is formed so as to hang down to provide an arc-shaped space between the bottom portion and the connecting portion.

According to the present invention, an inner projection is provided in the outer sealing portion of the packing, and a substantially arc-shaped gap is formed between the bottom of the sealing groove and the connecting portion of the packing by hanging the substantially central portion of the connecting portion. By providing a cover, when the lid is closed on the container, the connecting portion is pushed out by the edge of the container and the projection of the outer sealing portion is pressed against the edge of the container, so that even if the external environment is severe, the liquid Alternatively, it is possible to provide a highly sealed packing in which gas does not infiltrate through the packing.

In the packing according to the present invention, the inner sealing portion has a projection directed outward.

According to the present invention, by providing a projection toward the outside on the inner sealing portion and pressing the packing from both sides against the edge of the container, it is possible to provide a more highly sealed packing. Can be.

The packing according to the present invention is made of synthetic rubber having a hardness of about 50 to 70.

According to the present invention, the packing material is made of synthetic rubber having a hardness of about 50 to 70, thereby providing a packing having elasticity, restoring force and weather resistance and having an appropriate hardness. Can be.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A packing according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings and FIGS. FIG. 1 is a bottom view of the lid of the container in which the packing is inserted according to the embodiment of the present invention, and FIG. 2 is a cross-sectional structure of the sealing groove of the lid and the packing when the packing is inserted according to the first embodiment of the present invention. 1A is a cross-sectional view taken along the line AA in FIG. 1, wherein FIG. 1A is a cross-sectional view showing a state in which packing is inserted into a sealing groove of a lid, and FIG. Figure,
FIG. 3C is a cross-sectional view showing a state where the edge of the container is completely inserted into the packing. FIG. 3 is a cross-sectional structure of the sealing groove of the lid and the packing when the packing according to the second embodiment of the present invention is inserted. FIG. 2 is a sectional view taken along line AA of FIG.

First, with reference to FIG. 1 and FIG. 2, the structure of the packing according to the first embodiment of the present invention will be described. In FIGS. 1 and 2, reference numeral 1 denotes a round lid of a container to be sealed over a container, 2 denotes a sealing groove for inserting a packing 3 provided along the outer periphery of the lid 1 for sealing, and 4 denotes a sealing groove. An outer edge 5 constituting an outer edge of the sealing groove 2 is an inner edge constituting an inner edge of the sealing groove 2.

In FIG. 2, reference numeral 6 denotes an outer edge 4 of the lid 1.
The bottom portion 3 is formed into a U-shape by connecting the inner groove 5 to the inner edge portion 5, the packing 3 is formed into a U-shape, and is inserted into the sealing groove 2 of the lid 1 to seal the rim 12 of the container. Packing 3
The outer sealing portion of the packing 3 which constitutes one end of a U-shape and is set at a position inscribed in the outer edge 4 of the sealing groove 2 when the packing 3 is inserted into the sealing groove 2, 8 is a U-shape of the packing 3 And the inner sealing portion of the packing 3 set at a position in contact with the inner edge 5 of the sealing groove 2 when the packing 3 is inserted into the sealing groove 2.

Reference numeral 9 denotes an outer seal portion 7 and an inner seal portion 8 of the packing 3 which are connected to each other to form the packing 3 in a U-shape. When the packing 3 is inserted into the sealing groove 2, the bottom 6 of the sealing groove 2 is formed. Connecting portion of packing 3 set at a position inscribed in
Is provided at one end of the outer sealing portion 7 of the packing 3,
When the connecting portion 9 is pressed by 2, the protrusion is spread out and pressed against the side of the edge 12 of the container to seal the container.
Reference numeral 2 denotes an edge of a container for accommodating a liquid or a gas that requires sealing.

The connecting portion 9 of the packing 3 has a dish-shaped or arc-shaped cross section whose substantially central portion hangs down to form a concave portion. The shape is such that an arc-shaped gap is formed between the gap and the connecting portion 9 of the packing 3.

The packing 3 may be made of any material, such as synthetic rubber, natural rubber or plastic, as long as it is a material normally used as a packing, but it is desirable that the packing 3 has some elasticity, resilience and hardness. In addition, when used outdoors, particularly in harsh environments such as at sea, weather resistance is required. Therefore, it is appropriate to use a synthetic rubber having a hardness of about 50 to 70.

Next, with reference to FIG. 2, a description will be given of the packing operation according to the present embodiment configured as described above. First, as shown in FIG. 2A, when the packing 3 is inserted into the sealing groove 2 of the lid 1, the outside of the outer sealing portion 7, the inner sealing portion 8 and the connecting portion 9 of the packing 3 becomes the corresponding sealing portion. The outer edge 4, the inner edge 5, and the bottom 6 of the groove 2 are inscribed and fitted. At this time, an arc-shaped gap is formed between the bottom 6 of the sealing groove 2 and the connecting portion 9 of the packing 3 as described above.

As described above, in a state where the packing 3 is inserted into the sealing groove 2 of the lid 1, when the lid 1 is put on the container and pressed, as shown in FIG. The packing 3 is pushed into the U-shaped opening. When the lid 1 is further pushed down, the edge 12 of the container pushes up the connecting portion 9 of the packing 3 as shown in FIG. In this manner, when the connecting portion 9 of the packing 3 is pushed up by the edge 12 of the container, the arc-shaped gap between the bottom portion 6 of the sealing groove 2 and the connecting portion 9 of the packing 3 is crushed, flattened, and left and right. Spread out. The expanded portion of the packing 3 is transmitted from the connecting portion 9 to the outer sealing portion 7,
The projection 10 is pressed against the side of the edge 12 of the container and acts to strongly seal.

That is, the packing 3 seals the container even at the projections 10, so that a double sealing effect can be obtained. Therefore, even when used in a harsh environment such as the sea, the seal does not leak.

Hereinafter, with reference to FIG. 1 and FIG. 3, the structure of the packing according to the second embodiment of the present invention will be described. 1 and 3, reference numeral 1 denotes, for example, a round lid of a container to be sealed over a container, 2 denotes a sealing groove for inserting a packing 11 for sealing provided along the outer periphery of the lid 1, and 4 denotes a sealing groove. An outer edge forming an outer edge of the sealing groove 2;
Is an inner edge portion forming an inner edge of the sealing groove 2.

In FIG. 3, reference numeral 6 denotes an outer edge portion 4 of the lid 1.
And a bottom portion which connects the inner edge portion 5 and the sealing groove 2 to form a U-shape, 11 is a U-shaped packing inserted into the sealing groove 2 of the lid 1 to seal the rim 12 of the container, 13 is a packing An outer sealing portion of the packing 11 which constitutes one end of a U-shape of the packing 11 and is set at a position inscribed in the outer edge 4 of the sealing groove 2 when the packing 11 is inserted into the sealing groove 2, And the inner sealing portion of the packing 11 which is set at a position in contact with the inner edge 5 of the sealing groove 2 when the packing 11 is inserted into the sealing groove 2.

Reference numeral 15 denotes an outer sealing portion 13 of the packing 11.
And the inner sealing portion 14 are connected to form the packing 11 in a U-shape. When the packing 11 is inserted into the sealing groove 2, the packing 11 is set at a position inscribed in the bottom 6 of the sealing groove 2.
The connecting portion 16 is provided at one end of the outer sealing portion 13 of the packing 11 and is expanded when the connecting portion 15 is pressed by the rim 12 of the container, and is pressed against the rim 12 of the container from outside to seal the container, Reference numeral 17 denotes a projection provided at one end of the inner sealing portion 14 of the packing 11, which is expanded when the connecting portion 15 is pressed by the edge 12 of the container, and presses the edge 12 of the container from the inside to seal the container.

The connecting portion 15 of the packing 11 has a dish-shaped or arc-shaped cross section in which a substantially central portion hangs down to form a concave portion, and the bottom portion 6 of the sealing groove 2 when inserted into the sealing groove 2. The shape is such that an arc-shaped space is formed between the gap and the connecting portion 15 of the packing 11.

The material of the packing 11 is the first material.
Similar to those described in the embodiment, synthetic rubber,
Any material such as natural rubber or plastic may be used, but those having some elasticity, restoring force and hardness are desirable. Also, when used outdoors, especially in harsh environments such as at sea, light resistance is required. Therefore, the hardness is about 50 to 7
The use of a synthetic rubber of 0 is suitable.

Next, with reference to FIG. 3, a description will be given of the packing operation according to the present embodiment configured as described above. First, in FIG. 3, when the packing 11 is inserted into the sealing groove 2 of the lid 1 as shown in FIG.
Outer sealing portion 13, inner sealing portion 14, and connecting portion 1 of packing 11
The outside of 5 is fitted in the outer edge 4, inner edge 5 and bottom 6 of each corresponding sealing groove 2. At this time, as described above, the connecting portion 15 between the bottom 6 of the sealing groove 2 and the packing 11 is used.
Between them, an arc-shaped space is formed.

As described above, in a state where the packing 11 is inserted into the sealing groove 2 of the lid 1 and the lid 1 is put on the container and pressed, the edge 12 of the container is in the U-shaped opening of the packing 11. When the lid 1 is further pushed down, the edge 12 of the container pushes up the connecting portion 15 of the packing 11. In this manner, when the connecting portion 15 of the packing 11 is pushed up by the edge 12 of the container, the arc-shaped space between the bottom 6 of the sealing groove 2 and the connecting portion 15 of the packing 11 is crushed, flattened, and left and right. Spread out. The expanded portion of the packing 11 is transmitted from the connecting portion 15 to the outer sealing portion 13, and presses the protrusion 16 provided on the outer sealing portion 13 against the edge 12 of the container from the outside to act to strongly seal. Also, the expanded portion of the packing 11 is transmitted from the connecting portion 15 to the inner sealing portion 14 so that the projection 17 provided on the inner sealing portion 14 is pressed against the edge 12 of the container from the inside to strongly seal the container. Works.

That is, the packing 11 seals the container not only at the connecting portion 15 but also at the projections 17 as well as the projections 16, so that a triple sealing effect can be obtained. Therefore, even when used in any severe environment such as the sea, the hermetic seal is completely maintained.

[0031]

The packing according to the present invention is constructed as described above. In particular, the end of the U-shaped packing is provided with a projection toward the edge of the container, and the connection between the ends of the packing is substantially formed. By forming a concave part by hanging down the center part and providing an arc-shaped space between the bottom part of the sealing groove and the connecting part of the packing, when the container is closed, the connecting part is pushed out by the edge of the container. By making the protrusions at the end of the packing press against the edge of the container, a double or triple sealing effect is obtained in any severe external environment, so that liquid or gas does not permeate through the packing. A highly sealed packing can be provided.

[Brief description of the drawings]

FIG. 1 is a bottom view of a container lid in which a packing is inserted according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1 showing a sealing groove of the lid and a cross-sectional structure of the packing when the packing according to the first embodiment of the present invention is inserted; Sectional view showing the state where the packing is inserted into the groove (B) Sectional view showing the state where the edge of the container is inserted into the packing (C) Sectional view showing the state where the edge of the container is completely inserted into the packing Figure

FIG. 3 is a sectional view taken along the line AA of FIG. 1 showing a sealing groove of the lid and a sectional structure of the packing when the packing according to the second embodiment of the present invention is inserted.

FIG. 4 is a cross-sectional view of a packing having a U-shaped cross-sectional structure in which a cross-section of a U-shape is provided in a lid of a container as an example of a conventional packing and is fitted into the groove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover 2 Sealing groove 3 Packing 4 Outer edge 5 Inner edge 6 Bottom 7 Outer sealing part 8 Inner sealing part 9 Connecting part 10 Projection 11 Packing 12 Container rim 13 Outer sealing part 14 Inner sealing part 15 Connecting part 16 Projection 17 Projection 18 packing

Claims (3)

[Claims] An outer edge provided along the outer periphery of a lid of a container, and an inner edge and a bottom connecting the outer edge and the inner edge are fitted into a sealing groove having a substantially U-shaped cross section. When fitted into the sealing groove, one end connects the inner sealing portion and the outer sealing portion which are inscribed in the inner edge portion and the other end which is inscribed in the outer sealing portion which is inscribed in the outer edge portion and the bottom portion. A packing having a substantially U-shaped cross section formed by a connecting portion, wherein the outer sealing portion has a projection directed inward, and a substantially central portion of the connecting portion hangs down to form the bottom portion and the connecting portion. A packing in which an arc-shaped space is provided between the packing. 2. The packing according to claim 1, wherein the inner sealing portion has a projection directed outward. 3. The packing according to claim 1, wherein the packing is formed of a synthetic rubber having a hardness of about 50 to 70.