JPS5936421Y2 - Connection structure of two air inflatable bladders - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is suitable for use in gas-inflatable canopy supports, for example, for supporting the air chamber and the gas-inflatable seat of a gas-inflatable rubber boat, and the air sac and canopy of a gas-inflatable liferaft. The present invention relates to a connecting structure for connecting two gas-expandable air bladders.

Conventionally, in order to connect two air sacs as described above in terms of ventilation, one air sac is used as a connecting body and the other air sac is used as a body to be connected, and as shown in FIG. Cuts 2 are made in the wall, several sections 3 are made, each section is spread outward in the shape of a chrysanthemum, and is adhered to the wall of the object 4 to be joined, so-called picture-side pasting. Generally, the cloth 5 is further bonded and reinforced from above.

In addition, the reference numeral 61 in the figure indicates a ventilation hole that connects the combined body and the combined body 4 in a ventilation manner.

In this connection structure, the combined body 1 must have an open end surface that forms a section along the image side.

That is, the combined body 1 must be open at its ends without forming an air sac.

In order to connect the connected body 1 in the open state to the connected body 4, careful positioning and adhesive processing are required to prevent twisting or displacement due to air expansion after connection.
Since the combined body 1 cannot be inflated with air before the two are connected, this complicated work is unavoidable.

In addition, in the case where the bonded body and the bonded body in Fig. 1 are placed in parallel and the side walls are connected ±1,4, it is not possible to create a section, so the connection structure of the image side attachment is I can't hire you.

The present invention was devised in view of the defects in the conventional connecting structure of two air inflatable air sacs, and was devised for the purpose of solving this problem. The purpose of the present invention is to provide a connecting member that can easily connect a side wall or an end surface to an end surface, or a side wall and an end surface.

The present invention will be described below based on drawings showing embodiments.

First, FIGS. 2 and 3 show an embodiment of a connecting member for connecting a bonding body and a body to be bonded according to the present invention.

This connecting member 6 has a predetermined through hole 8 in the center of mounting pieces 6 and 7 made of flexible and airtight circular fiber-reinforced sheets.
A thread is then sewn concentrically to the through hole 8 at a predetermined distance from the through hole 8 to the outside, and an adhesive is applied between the through hole 8 and the sutured portion 90. It consists of a double part 11 which is glued together with 10.

The coupling member 12 configured in this manner has a through hole 8 in the center and a double portion 11 around the through hole 8. Furthermore, there is a seam 9 on the outside, and two free ends 13, 14 are located outside of this.

Next, what is shown in FIGS. 4 and 5 is a connecting member according to a second embodiment of the present invention. In this embodiment, as in the first embodiment, a flexible and airtight coupling member is used. A circular sheet (15.16) with a smaller diameter than the reinforcing cloths (15.16) is pasted with adhesive (17) on one side of the attachment piece (6.7) made of two circular fiber-reinforced sheets as reinforcing cloths (15.16). 16
The mounting pieces 6 and 7 are placed on top of each other with the front side facing up, and a through hole 8 of a predetermined diameter is bored in the center of both of them. A stitched portion 9 sewn together with a thread is provided at a position inside the periphery of the reinforcing cloths 15 and 16, and a quadruple portion 11 bonded with adhesive 10 is provided between the stitched portion 9 and the through hole 8. It is composed of

In this example, the button connecting member 12' also has a part of the mounting pieces outside the seam 9 which are doubled, but the mounting pieces 6 and 7 are free pieces 13 and 14 that are separated from each other. There is.

Next, what is shown in FIGS. 6 and 7 is a third embodiment of the present invention, in which the coupling member 12 in the first embodiment is
This provides a high degree of airtightness.

This connecting member 1p' has mounting pieces 6 and 7 made of two circular fiber-reinforced sheets placed one on top of the other, and a
A through hole 8 of a predetermined diameter is drilled, and a suture portion 9 is attached concentrically to the through hole 8 at a position spaced apart from the through hole 8 by a predetermined distance.
A mounting piece 6 is provided between the sutured portion 9 and the through hole 8,
7 is a hanging part bonded with adhesive 10, and two circular rubber membranes 18 and 19 are formed with a through hole 8' having a diameter smaller than that of the through hole 8, and the through hole 8' is It is attached to both sides of the mounting piece so that it is concentric with the through hole 8 bored in the mounting piece.

In the coupling member 1f configured in this way, the attachment pieces 6 and 7 outside the sutured part 9 have free ends 13 and 14, but the outermost side of the through hole 8' is surrounded by a rubber membrane 18 and 19. but,
A double portion 21 is formed by overlapping and bonding through an adhesive 20.

Next, what is shown in Figures 8 and 9 is similar to Figures 4 and 5.
The airtight performance of the connecting member 12' shown in the figure is greatly improved.

This connecting member 1' is made by concentrically pasting smaller-diameter circular fiber-reinforced sheets 15 and 16 as reinforcing cloth on one side of the mounting pieces 6 and 7 of two circular fiber-reinforced sheets. , these circular reinforcing cloths 15 and 16 are placed one on top of the other so that they are on the front side, and a through hole 8 is punched in the center of them.
A sutured portion 9 is provided at a predetermined distance outward from the through hole 8 and inside the periphery of the reinforcing cloths 15 and 16, and a mounting piece between the sutured portion 9 and the through hole 8 is provided. 6 and 7 are vertical parts bonded with adhesive 10, and two circular rubber membranes 18 and 19 with a through hole 8' smaller in diameter than the through hole 8 are inserted. It is attached to both sides of the fiber-reinforced sheet so that it is concentric with the through-hole 8 bored in the fiber-reinforced sheet.

The coupling member 1fh configured in this way, the attachment pieces 6 and 7 outside the seam part 9 have free ends 13 and 14 that are partially overlapped with the cloth 15 and 16, respectively. The outermost rubber membrane 18.1 surrounds the central through hole 8'.
9 is a double portion 21 which is overlapped and bonded via an adhesive 20.

The structure of the coupling member of the present invention has been explained above using four embodiments, and the manner of use and operation and effect of each of these coupling members will be described below based on FIGS. 10 to 13. .

First, when using the coupling member 12 of the first embodiment as shown in FIGS. 2 and 3, as shown in FIG. Adhering the side wall or end surface 22 of the body via an adhesive 23,
A side wall or end surface 24 of the object to be joined is adhered to the other attachment piece 7 of the joining member 12 via an adhesive 25.

At this time, the holes bored in the walls 22, 24 of the combined body and the combined body are aligned with the holes of the connecting member 12, so that the air sacs of the combined body and the combined body are in ventilation communication.

In addition, the joint body refers to the mounting pieces 6 and 7 on both sides of the joint member 120.
However, the outer side of the seam 9 of the connecting member 12 is mutually free along with the free ends 13 and 14 of the connecting member 12, so that even though the two are in communication, there is flexibility. have.

Therefore, the work of connecting them is easy.

Although the connecting member in this embodiment has a simple structure, it can connect two air bladders in an aerated manner, and the manufacturing and connection processing of the connecting member is easy, and especially high strength is applied to the connecting part. It is suitable for connecting things that are not required.

Next, the connecting member of the second embodiment as shown in FIGS. 4 and 5 is obtained by gluing the reinforcing cloth to the front side of the attachment piece of the connecting member of the first embodiment and sewing a part of it. , the durability is improved when a strong force is applied to the joint between the joined body and the joined body in the direction of separating the connection.

In the connecting member of this configuration, the attachment piece and the reinforcement fabric surround are glued together and the outsides are sewn together, so the fabric will not be cut by the thread at the stitched part.
It becomes strong.

As shown in FIG. 11, the method of use is to connect the cloth 15° 16 and the free end 13.14 to the layers 22.24 of the bonded body and the bonded body, respectively, via the adhesive layer 23.25. let

In addition, there is no significant difference in the operational effect whether the suture part is located inside or outside the outer circumference of the reinforcing cloth, and in this invention, the position of the suture part and the reinforcement cloth are This does not limit the relationship with the position of the outer periphery.

Next, the coupling member shown in the third embodiment as shown in FIGS. 6 and 7 is one in which the periphery of the through hole of the coupling member of the first embodiment is covered with two rubber films. As shown in FIG. 12, the manner of use is as shown in FIG.
The walls 22.24 of the bonded body and the bonded body are bonded to the free pieces 13.14 via adhesive layers 23.25, respectively.

Generally, fiber-reinforced sheets such as rubberized cloth are
Even if the surface of the temporary stand is an airtight surface with a rubber layer, there may be
Microscopic voids are created between the fibers and the outer rubber layer, and air tends to move inside the sheet through these voids.

This tendency may result in a clear air leakage phenomenon when the distance from the cut surface of the fiber reinforced/-t to the cut surface casing is small.

The mounting pieces of the coupling member of the present invention have a relatively small distance from the cut surface to the cut surface, so in order to prevent this air outflow phenomenon, the mounting pieces 6 and 70 face the through hole 8. The cut surface is covered from both sides with two sealing rubber membranes.

With the joining member covering the cut surface in this way, the joined body and the joined body are strongly and easily connected, and the thread of the sutured part there is transmitted from the branched parts of the free ends 13 and 14. Since air does not leak out through the holes in the thread or the holes in the thread, the connecting member of this embodiment is suitable for connecting air bags that require a high degree of airtightness.

Next, in the fourth embodiment as shown in FIGS. 8 and 9, the connecting member shown in the second embodiment is replaced with the periphery of the through hole in the third embodiment. It is sealed to prevent air from entering.

The connecting member in this example has sufficient strength as a connecting member, and also prevents air from leaking from the connecting portion.

This is used as shown in FIG.
4, the walls 22,24 of the bonding body and the body to be bonded are bonded via adhesive layers 23,25, respectively.

The coupling member of the present invention has been explained based on the first to fourth embodiments, but to summarize the above, the coupling member of the present invention has a simple structure as a whole and can perform the coupling work efficiently. With the features you get.

Further, in the coupling member of the present invention, the coupling body has a closed end surface 26 as shown in FIGS. In the case of connection, both 1 and 4 can be connected by adhering attachment pieces or attachment pieces on both sides of the connecting member to the closed end surface 26 and the side wall 4'.

Therefore, there is an advantage that the closed end surfaces of the air sac body can be joined together.

In Figures 14 and 15, 27 is the outer reinforcing piece, 28
29 and 30 indicate inner reinforcing pieces, and adhesive layers.

Furthermore, as shown in FIG. 16, the connecting member of the present invention is suitable for attaching a ventilation valve to its through holes 8, 8', and therefore can provide a check function for ventilation between two air bags. I can do it.

In Fig. 16, 12.12', 1', 1'U coupling members, 22.24 are the walls of the coupled body and the coupled body, respectively, 23, 2
5° 31 is an adhesive layer, 32.34 is a seat, and 33 is a housing.

As explained above, the present invention has a simple configuration,
The function is a connecting structure that connects two air inflatable bladders using an excellent connecting member, and the value of the present invention is great.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional connection structure, Fig. 2 shows a coupling member in the first embodiment of the present invention, and Fig. 3 shows a second embodiment.
It is a sectional view taken along the line AA in the figure. FIG. 4 shows a coupling member in a second embodiment of the present invention, and FIG. 5 is a sectional view taken along the line B--B in FIG. 4. FIG. 6 shows a coupling member according to a third embodiment of the present invention, and FIG. 7 is a sectional view taken along the line CC in FIG. 6. FIG. 8 shows a coupling member according to a fourth embodiment of the present invention, and FIG. 9 is a sectional view taken along the line D--D in FIG. 8. What is shown in FIGS. 10 to 13 is the 2° 4.6
FIG. 9 is a cross-sectional view showing how each of the coupling members shown in FIGS. FIG. 14 is a partially cutaway perspective view of an air bladder having a closed end surface, and FIG. 15 is a sectional view taken along the line E--E in FIG. 14. What is shown in FIG. 16 is the connecting member 12° 12' of the present invention.
, 1b' and 1f/ are a cross-sectional view showing a state in which the air bladders are connected to each other and the two are communicated through a valve. 6.7...Mounting piece, 8...Through hole, 9...Sewing portion, 12.12', 1p', 1f'...Connection member.

Claims (1)

[Scope of utility model registration request] Two mounting pieces made of flexible, airtight, and fiber-reinforced sheets are overlapped, a through hole is bored in the center, and a predetermined distance from the periphery of the through hole is placed. The two attachment pieces are sewn together so as to surround the through hole to provide a sutured portion, and the inner surfaces of the two attachment pieces between this sutured portion and the through hole are adhered to each other. 1. A structure for connecting two air-expandable air bladders, characterized in that a connecting member is bonded on one side to a bonding body and on the other side to a body to be bonded.