JPH0148428B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a waterproof gasket inserted into a joint between two parts, particularly a waterproof gasket used in a container for storing life-saving equipment for accidents and disasters at sea. It is related to.

[Prior Art] Containers used to store inflatable liferafts that are stowed on ships, etc. as lifesaving equipment must be watertight under all conditions encountered at sea in order to maintain and preserve the liferafts in normal condition. Ru.
Fig. 1 is a front view of the container, Fig. 2 is a side view thereof, and Fig. 3 is A-A in Fig. 1 showing the conventional coupling part.
It is a sectional view of A, and in the figure, 1 is the lower container,
2 is the upper container that mates with this lower container,
A rubber gasket 4 is bonded to the lower container 1 in the mating portion 3. X indicates outside and Y indicates inside.

In the above configuration, when the upper container 2 is fitted to the lower container 1 and the lower container 1 and the upper container 2 are tied and tightened with a string or the like, the packing 4 is pushed and deformed, and the packing 4 is pressed and deformed.
There are no gaps between them, creating a watertight structure.

Since the conventional waterproof packing was constructed as described above, the end face of the upper container 2 did not completely contact the packing 4 due to variations in workmanship, and the container vibrated when loaded on a ship or the like. Upper container 2 and packing 4 will be loosened.
If a gap occurs between the container and the watertight structure becomes unmaintainable, especially if water pressure 5 is applied from the side of the packing 4 due to waves, etc., a large amount of seawater etc. will flood into the inside of the container, causing damage to the life raft stored inside. There were drawbacks such as significant negative effects.

[Summary of the invention]

This invention was made for the purpose of eliminating the above-mentioned drawbacks of the conventional one, and includes a waterproof packing inserted into a mating part of two parts, which includes a packing main body molded from an elastic material, and a packing main body formed inside the packing main body. an outer cover protruding from the packing body so that when the other part is crimped while attached to one part, the hollow part is deformed and crimped to the outside of the other part; By providing a protrusion that protrudes from the cover toward the component side, and an inner cover that protrudes from the packing body so as to be inserted between the two components, water pressure such as rainwater and waves from the mating portion is provided. To provide a waterproof packing which has a watertight structure by deforming the waterproof packing to a state that prevents water from seeping into the inside of a container, can follow changes in the amount of deformation, etc., and can maintain a watertight state for a long period of time.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. Figure 4 is A in Figure 1 showing the mating part of the tightening surface.
-A sectional view and FIG. 5 are AA sectional views showing the mating portion in a tightened state, and in the figures, 1 to 5 indicate the same or equivalent parts as in FIG. 1. Patsukin 4
These include a packing body 4a formed into an annular shape from an elastic material such as rubber, a hollow portion 4b formed inside the packing body, an outer cover 4c extending from the top of the packing body 4a to the outside of the upper container 2, and this outer cover. A protrusion 4 protruding from the side toward the upper container 2
d, and an inner cover 4e that protrudes from the upper part of the packing body 4a so as to be inserted between the lower container 1 and the upper container 2, and the bottom surface and inner surface are bonded to the lower container 1.

In the above configuration, as shown in FIG.
Insert between the protrusion 4d and the inner cover 4e. Then, as shown in Figure 5, lower container 1 and upper container 2
When tightened with a string or the like, the gasket 4 is easily deformed due to the crimping of the upper container 2 due to the hollow portion 4b, and this deformation deforms the outer cover 4c and the protrusion 4d moves toward the upper container 2. ,
At the same time that the protrusion 4d is pressed onto the upper container 2, the inner cover 4e is also deformed and pressed onto both sides of the lower container 1 and the upper container 2. For this reason, not only rainwater but also large water pressure due to waves etc.
Even if water is applied from any direction, the mating part can maintain a watertight state. Further, even if the tightening loosens due to variations in the end face of the upper container 2 or vibrations received when installed on a ship, and the amount of deformation of the packing 4 changes, the mating portion can maintain a watertight state for a long period of time.

In this way, the above-mentioned waterproof packing can maintain a watertight state for a long period of time even if slight variations or loosening occur, can withstand water pressure from waves, etc., is highly reliable, and has a fast mating time compared to conventional products. Is it similar?
It is less than that, and the force for releasing the engagement is not greater than that of conventional products.

Although the above embodiment has been described in the case of a container for life-saving equipment, it can also be applied to other boxes that require waterproofing, and the same effects as in the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, since the packing main body is provided with a hollow part, an outer cover, and an inner cover, even if the tightening force loosens due to variations in the end face of the container or vibration, the packing is deformed to ensure water tightness. A highly reliable waterproof gasket that can maintain its condition for a long period of time is obtained, and the mating operation time and uncoupling force are comparable to conventional products.

[Brief explanation of drawings]

Fig. 1 is a front view of the container, Fig. 2 is a side view thereof, and Fig. 3 is A-A in Fig. 1 showing the conventional coupling part.
A sectional view, FIGS. 4 and 5 are sectional views taken along the line AA in FIG. 1, showing a mating portion according to an embodiment of the present invention. In each figure, the same reference numerals indicate the same or equivalent parts, 1 is the lower container, 2 is the upper container, 3 is the fitting part, 4 is the packing, 4a is the packing main body, 4b
is the hollow part, 4c is the outer cover, 4d is the protrusion, 4e
is the inner cover.

Claims (1)

[Claims] 1. In a waterproof packing inserted into the mating part of two parts, there is a packing main body formed of an elastic material, a hollow part formed inside the packing main body, and a waterproof packing that is inserted into the mating part of two parts. an outer cover that protrudes from the packing body so that when the end portion is crimped, the hollow portion deforms and is crimped to the outside of the other component; a protrusion that protrudes from the outer cover toward the component; When the end of the other part is crimped while attached to the other part, the hollow part deforms and is inserted from the packing main body between the mating parts of the two parts, crimping the mating part of the two parts. A waterproof patch skin characterized by comprising an inner cover that protrudes in such a way as to