JP2000016376A - Inflatable boat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a function capable of easily and surely attaching/detaching both end parts of a horizontal air chamber to/from an air body. SOLUTION: A connection body 1 to fit and support both end faces of a horizontal air chamber a3 to right and left side parts of an air body is provided, the connection body 1 comprises a horizontal air chamber side connection piece 1b and an air body side connection piece 1a, the air body side connection piece 1a comprises a fitting piece to be attached to the air body a1 and a connection piece, and the horizontal air chamber side connection piece 1b comprises a fitting piece to be attached to an end face of the horizontal air chamber a3 and a connection piece. A snap is attached along an outer circumferential part of the connection piece of the air body side connection piece 1a, a snap to be engaged with each snap is attached along an outer circumferential part of the connection piece of the horizontal air chamber side connection piece 1b, the connection pieces are lapped on each other, and these connection pieces are joined with each other in an attachable/detachable manner through the engagement of the snaps.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inflatable boat, and more particularly, to an inflatable boat having a side air chamber detachably mounted between left and right sides of a cylinder constituting a boat body. .

[0002]

2. Description of the Related Art As shown in FIGS. 6 and 7, a conventional inflatable boat includes a lateral air chamber 10 extending between left and right sides of a cylinder 101 constituting a boat body 100. As shown in FIG.
2 which is detachably mounted (see 52-11)
No. 5096). In the inflatable boat described above, a lateral air chamber 102 in which a passenger sits is provided between right and left sides of a cylinder 101 having a substantially O-shape in a plan view, and both ends of the lateral air chamber 102 are connected to the air space. It is detachably attached to and supported by the body 101.

[0003] The inflatable boat is provided with a cylinder 10
1 is provided with a connection structure 103 for detachably connecting the left and right side portions and both end portions of the lateral air chamber 102. Connection structure 10
Reference numeral 3 denotes a substantially cylindrical fixed cylinder 104 attached to and fixed to the left and right sides of the cylinder 101 and an attachment cylinder 105 fixed to the outer periphery of the lateral air chamber 102 in a state of being fitted to the outer periphery thereof. The fixed cylinder 10
Reference numeral 4 denotes a state in which the opening of the cylinder 104 is brought into contact with and adhered to the outer peripheral surface of the inside of the cylinder 101 so that the shape of the opening coincides with the outer peripheral surface of the same cylinder 101. Are bored at regular intervals in the circumferential direction.

A mounting cylinder 105 of the lateral air chamber 102 is fitted around the end of the lateral air chamber 102, and an opening opposite to the cylinder 101 is bonded to the outer peripheral surface of the lateral air chamber 102. At the same time, an insertion hole 107 similar to the above-described insertion hole 106 of the fixed cylinder 104 is formed along the outer periphery of the opening on the side of the cylinder 101. The insertion hole 106 of the fixed cylinder 104
And the insertion hole 107 of the mounting cylinder 105 are formed at equal intervals in the circumferential direction.

[0005] The inflatable boat having the connection structure 103 constructed as described above has an end portion of the lateral air chamber 102 inserted into a fixed cylinder 104 fixed to the cylinder 101 and fixed to the same. The mounting cylinder 105 provided on the outer periphery of the end of
The insertion holes 106 and 107 formed in the holes 5 and 104 are aligned and overlapped. Then, while sequentially passing the cords 108 through the insertion holes 106 and 107 which are superimposed as described above, the cord 108 is made to make a round along the outer periphery of the end of the lateral air chamber 102,
After suitably tightening the string 108, the ends of the string 108 are tied together. As a result, the air cylinder 101 and the side air chamber 102
Means the fixed cylinder 104 connected by the string 108
And are connected integrally via a mounting cylinder 105.

The connection structure 103 for an inflatable boat constructed as described above is such that both ends of the lateral air chamber 102 are fitted into a fixed cylinder 104 fixed to the cylinder 101, and the fixed cylinder 104 and the mounting cylinder are connected to each other. 105 are overlapped and fitted to each other, and the cords 108 are inserted into the insertion holes 106 and 107 formed in the cylinders 104 and 105, respectively. Can be integrally and firmly connected to the cylinder 101. Therefore, the connection structure 1 of the lateral air chamber 102
03 is particularly suitable for a large inflatable boat for river going down where a large load is applied to the connecting portion of the lateral air chamber 102.

[0007]

However, the air cylinder 101 and the side air chamber 10 used in the inflatable boat described above are used.
2 requires a fixed tube 104 and a mounting tube 105 which are troublesome to manufacture, and these tubes 10
The work of bonding 4,105 to the outer periphery of the cylinder 101 and the outer periphery of the end of the lateral air chamber 102 was very difficult, and was disadvantageous also in cost. Also, when the lateral air chamber 102 is mounted, the fixed cylinder 104 and the mounting cylinder 105 are overlapped with each other in a state where the end of the lateral air chamber 102 is inserted into the inside of the fixed cylinder 104, and each insertion hole is The work of inserting the string 108 into the 106 and 107 is troublesome, and improvement has been demanded.

In view of the above, an inflatable boat shown in FIG. 8 has been developed as an inflatable boat for reducing the labor for manufacturing the connecting structure of the lateral air chamber as described above and the labor for mounting the same (Japanese Utility Model Laid-Open No. 7-8190). ). This inflatable boat is provided with a connecting body 203 for detachably connecting both left and right sides of a cylinder 201 and both ends of a lateral air chamber 202. The connecting body 203 includes a connecting piece 204 fixed to both end faces of the lateral air chamber 202 and a connecting piece 205 fixed to the left and right peripheral portions of the cylinder 201.

The connecting piece 205 on the side of the cylinder 201 is
A bonding piece 205a bonded to the peripheral surface of
a of a horizontally long joining piece 205b fixed to the front surface side of FIG. On the other hand, the connecting piece 204 on the side of the lateral air chamber is composed of an adhesive piece 204a that adheres to both end faces of the lateral air chamber 202 and the adhesive piece 204a.
And a substantially square joint piece 204b fixed to the surface side of the first member. Through holes 206 are formed at four corners of the connecting piece 204 on the side of the lateral air chamber 202, and the connecting piece 205 on the side of the cylinder 201 is provided.
The insertion hole 2 is formed along the upper side and the lower side of the joining piece 205b.
07 are provided at appropriate intervals.

Then, the joining pieces 204b at both ends of the lateral air chamber 202 are overlapped with the joining pieces 205b on the side of the cylinder 201, and the positioning of the insertion holes 206 and 207 of both pieces 204b and 205b is performed. The string 208 is inserted into the insertion holes 206 and 207 to join the joining pieces 204b and 205b to each other, so that both ends of the lateral air chamber 202 are
1 is mounted and supported. In the connection body 203, the joining piece 2 on the side of the cylinder 201 through which the cord 208 is inserted.
By changing the insertion hole 207 of the cylinder 05b, the mounting position of the lateral air chamber 202 can be moved and adjusted in the length direction of the cylinder 201.

However, the cylinder 201 constructed as described above is used.
Even in the connection structure of the side air chamber 202 and the connecting structure of the side air chamber 202,
Since the work of inserting the side air chamber 202 into the through holes 206 and 207 of 4b cannot be effectively reduced, there is room for further improvement.

An object of the present invention is to provide an inflation system as described above.
It is an object of the present invention to provide a double boat with a function of easily and reliably attaching and detaching both ends of a lateral air chamber to and from a cylinder.

[0013]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to an inflatable boat having a lateral air chamber extending between left and right sides of a cylinder constituting a boat body. A connector is provided for detachably attaching and supporting the left and right end surfaces of the lateral air chamber to the left and right peripheral portions of the cylinder, respectively, and the connection member is fixedly attached to the left and right peripheral portions of the cylinder. A cylinder-side connection piece, and a lateral-air-chamber-side connection piece attached and fixed to both left and right end surfaces of the lateral air chamber, and the cylinder-side connection piece is attached to a peripheral surface of the cylinder, A connecting piece that is overlapped on the surface side of the mounting piece and fastens the substantially central portions together, and the side air chamber side connecting piece is a mounting piece that adheres to both left and right end surfaces of the horizontal air chamber; A joining piece that is overlapped on the surface side of the mounting piece and fastens the substantially central portions together, The snaps are fixed at appropriate intervals along the outer peripheral portion of the joining piece, and along the outer peripheral portion of the joining piece of the lateral air chamber side connecting piece, each of the snap pieces is provided on the joining piece of the cylinder side connecting piece. The snaps engaged with the snaps are fixed at predetermined intervals, and the joining pieces are overlapped with each other, and these two joining pieces are detachably joined via the engagement of the snaps provided on the outer peripheral portion thereof. It consists of

In the above-mentioned inflatable boat, lateral air chambers are provided between the left and right sides of the cylinder constituting the boat body, and the left and right ends of the lateral air chamber are provided on the left and right sides of the cylinder. It has a connecting body that is detachably attached to and supported by. The connection body includes a cylinder-side connection piece and a lateral air chamber-side connection piece. The cylinder-side connecting piece has a mounting piece adhered to the peripheral surface of both sides of the cylinder, a joining piece is overlapped on the surface side of the mounting piece, and a central portion of both pieces is fixed to each other. It is.
On the other hand, the side air chamber side connection piece has a mounting piece adhered to both end faces of the side air chamber, and a joining piece is superimposed on the surface side of the mounting piece,
It consists of fastening the central parts of both pieces together.

Snaps are fixed at appropriate intervals along the outer peripheral portion of the joining piece of the cylinder side connecting piece. Further, snaps are provided along the outer peripheral portion of the joint piece of the side air chamber side connection piece to engage with each snap provided on the joint piece of the cylinder side connection piece. Therefore, by joining the joining piece of the cylinder-side connecting piece and the joining piece of the lateral air chamber-side connecting piece and engaging the snaps corresponding to each other, the outer peripheral portions of the two joining pieces are snapped to each other. Are connected through the engaging force. In addition, by disengaging all of the above-mentioned snaps, both joint pieces are separated from each other, and both ends of the lateral air chamber can be removed from the left and right sides of the cylinder.

According to a second aspect of the present invention, the inflatable boat is detachably engaged with the center of the surface of the joining piece of the cylinder-side connecting piece and the center of the surface of the joining piece of the lateral air chamber-side connecting piece. The hook-and-loop fasteners are fastened to each other. In this case, in a state where the joining piece of the cylinder-side connecting piece and the joining piece of the lateral air chamber-side connecting piece are put together and the snaps are engaged with each other, the cylinder-side connecting piece and the lateral air chamber-side connecting piece are engaged. The hook-and-loop fasteners provided at the center of the two joint pieces are engaged with each other. Thus, in addition to the engaging force of the snaps, the engaging force of the hook-and-loop fastener acts as a connecting force for connecting the two joining pieces, and the two joining pieces can be more firmly connected.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The inflatable boat shown in FIG. 1 to FIG. 3 is a relatively large one used for going down a river or the like, and can accommodate 5 to 7 passengers. The inflatable boat comprises an environment-like cylinder a1 which expands in a substantially elliptical shape in plan view, and an air-mat-like bottom a2 is fitted and mounted on the bottom surface inside the cylinder a1. Is fixed to the inner peripheral portion of the bottom surface of the cylinder a1 to constitute the boat body a. In the boat main body a, three lateral air chambers a3 spanning the left and right sides of the cylinder a1 are detachably mounted so as to be fitted between the left and right sides of the cylinder. .

As described above, the cylinder a1 constituting the boat main body a has the same cylinder a because it has a substantially elliptical planar shape.
1 is divided into many parts, and individual portions a of the cylinder a1
A predetermined number of rubberized cloths cut in such a manner as to expand 1 '... Are sequentially joined to form an annular tube having an oval shape in plan view (FIG. 1). Then, three lateral air chambers a3 are installed between the left and right sides of the cylinder a1 of the boat body a configured as described above, and are mounted so as to cross the inside of the boat. The above-mentioned lateral air chambers a3 support the left and right sides of the cylinder a1 of the boat body a from the inside to prevent the deformation of the cylinder a1, and also serve as a seat for crew members boarding the boat body a. Function.

Each of the lateral air chambers a3 is formed as a substantially cylindrical air chamber having a diameter slightly smaller than that of the cylinder a1 by using a rubberized cloth, and a supply / exhaust valve 31 is provided at a substantially central portion of the outer peripheral surface. . The length of the lateral air chamber a3 is set to be slightly longer than the interval between the left and right sides of the cylinder a1 of the boat body a, so that the space between the left and right sides of the cylinder a1 is slightly expanded. Installing. The left and right ends of each lateral air chamber a3 are detachably connected to the left and right sides of the cylinder a1 via the connector 1 (FIGS. 1 and 3).

The connecting body 1 includes a cylinder-side connecting piece 1a attached to and fixed to the inner peripheral surfaces of the left and right sides of the cylinder a1, and a lateral air chamber-side connecting piece 1b attached and fixed to both the left and right end faces of the lateral air chamber a3. It is comprised by these. The cylinder-side connecting piece 1a is a circular mounting piece 11 adhered to the inner peripheral surface of the ship on both the left and right sides of the cylinder a1.
And a joining piece 12 to be superimposed on the surface side of the mounting piece 11. The mounting piece 11 and the joining piece 12 are cut as a circular cloth having a diameter slightly smaller than the diameter of the lateral air chamber a3 using a rubberized cloth. The mounting piece 11 and the joining piece 12 described above are accurately overlapped, and the periphery of the central portion thereof is sewn to join the two pieces 11 and 12 together in an overlapping state. In this state, the portion on the outer peripheral side of the centrally sewn portion of the two pieces 11 and 12 can be bent freely.
In addition, the above-mentioned connection of the central part of the attachment piece 11 and the joining piece 12 may be performed together with the sewing together with the adhesion.

On the other hand, the side air chamber side connection piece 1b is configured in the same manner as the cylinder side connection piece 1a. That is, the side air chamber side connection piece 1b is attached to the left and right end faces of the side air chamber a3 by the mounting pieces 13
And a joining piece 14 to be superimposed on the surface side of the mounting piece 13. The mounting piece 13 and the joining piece 14 are cut into a circular cloth having the same size as the mounting piece 11 and the joining piece 12 by using a rubberized cloth. The area around the center is sewn. That is,
The joint piece 14 of the side air chamber side connection piece and the joint piece 12 of the cylinder side connection piece 1a are configured to overlap with each other in a state where their outer shapes match.

A snap female body 2a is fixed at appropriate intervals along the outer periphery of the joint piece 12 of the cylinder-side connecting piece 1a. In the case of the present embodiment, six snap female bodies 2a are fixed at regular intervals along the outer peripheral portion of the joining piece 12 (FIGS. 2B and 4B). In addition, in the central portion on the surface side of the joining piece 12 of the cylinder side connecting piece 1a,
The female body 3a of the hook-and-loop fastener is sewn and fixed. still,
The female body 3a of the hook-and-loop fastener may be sewn together with the attachment pieces 11 and the joining pieces 12 together with the pieces 11 and 12 when sewing.

On the other hand, along the outer peripheral portion of the joint piece 14 of the side air chamber side connection piece 1b, the joint piece 12 of the cylinder side connection piece 1a is formed.
The snap male body 2b fitted and engaged with the snap female body 2a is fastened to each position corresponding to each snap female body 2a provided in FIG. As a result, the two joint pieces 12, 14 are formed.
When they are superimposed, the snap female bodies 2a and the snap male bodies 2b are aligned with each other, and can be engaged (FIGS. 2A and 2B). At the center on the surface side of the joint piece 14 of the lateral air chamber side connection piece 1b, the cylinder side connection piece 1a is provided.
The male body 3b of the hook-and-loop fastener engaging with the female body 3a of the hook-and-loop fastener provided on the joint piece 12 is sewn and fixed. Further, the male body 3b of the hook-and-loop fastener is provided with the two joining pieces 12, 1
4 are mounted and fixed so as to be completely joined to the female body 3a of the hook-and-loop fastener in a state where the four are superposed.
Note that the number of the snap female bodies 2a and the snap male bodies 2b is not limited to six as in the above-described embodiment.
It may be arbitrarily increased or decreased. In addition, the snap is a female body 2
a to the joining piece 12 of the cylinder-side connecting piece 1a, and the male body 2b
Is fixed to the joint piece 14 of the lateral air chamber side connection piece 1b, but the manner of attaching the female body 2a and the male body 2b of the snap may be reverse to the above embodiment. In addition, the female body 3 of the hook-and-loop fastener
The external shape and the mounting method of the male body 3a and the male body 3b may be arbitrarily changed.

The pair of left and right cylinder-side connecting pieces 1a configured as described above is mounted and fixed by bonding mounting pieces 11 to the inner peripheral surfaces of the left and right sides of the cylinder a1 (FIGS. 1 and 3). ). That is, the position where the cylinder-side connecting piece 1a is mounted and fixed is a position where both ends of the lateral air chamber a3 are mounted and supported. On the other hand, the side air chamber side connection piece 1b is mounted and fixed by bonding the mounting pieces 13 to the center portions of the left and right end faces of the side air chamber a3 (FIG. 2A). Further, as described above, the lateral air chamber a
2 side air chamber side connection piece 1b attached and fixed to both left and right end faces
Is attached to the outer peripheral portions of the two joint pieces 12 and 14 in a state where each of the joint pieces 14 is overlapped with the joint piece 12 of the cylinder-side connecting piece 1a attached and fixed to the right and left sides of the cylinder a1. The lateral air chamber a3 is positioned in such a manner that the snap female bodies 2a and the snap male bodies 2b are aligned so as to be fitted and engaged with each other.
(FIG. 3).

When the lateral air chamber a3 is connected to the left and right sides of the cylinder a1 via the connector 1 constructed as described above, the air supply / exhaust valve 31 of the lateral air chamber a3 is opened to open the lateral air chamber a3. The inside air is exhausted (FIG. 3). Then, the joint piece 14 of the lateral air chamber side connection piece 1b in which the joint piece 14 of the cylinder side connection piece 1a at one end of the contracted lateral air cylinder a3 is attached and fixed to one side of the cylinder a1.
Overlay on 2. Next, the female bodies 2a of the snaps fixed along the outer peripheral portions of the two pieces 12, 14 and the corresponding male bodies 2b are aligned, and the female bodies 2a and the male bodies 2b of the snaps are mutually moved. They are pressed and engaged sequentially (FIG. 4-a).

When the female body 2a and the male body 2b of the snaps fixed along the outer peripheral portions of the two joint pieces 12 are all fitted and engaged, the outer peripheral portions of the two joint pieces 12, 14 become The female body 2a and the male body 2b are coupled via an engaging force. Also,
At the same time, the female body 3a and the male body 3b of the hook-and-loop fastener provided at the center of both the joint pieces 12, 14 are mutually joined to be in an engaged state. That is, the two joining pieces 12 and 14 are strongly connected via the engaging force between the female body 2a and the male body 2b of each snap and the engaging force between the female body 3a and the male body 3b of the hook-and-loop fastener. .

The connection operation described above is similarly performed for the side air chamber side connection piece 1b and the cylinder side connection piece 1a at the other end of the side air chamber a3. Make a connection. Next, air is supplied from the air supply / exhaust valve 31 of the lateral air chamber a3 to expand the lateral air chamber a3 appropriately. This allows
The expanded lateral air chamber a3 is attached to and supported on both left and right side surfaces of the lateral air cylinder a3 via the connector 1, respectively.
3 is mounted in a state of being erected between the left and right sides (FIG. 1). In addition, the horizontal aerial cylinder a3 is a ship bottom a
3 is mounted.

As described above, when removing the lateral air chamber a3 which is installed between the left and right sides of the cylinder a1, the snap female bodies 2a and the male members along the outer peripheral portions of the joint pieces 12 and 14 in the connected state are removed. The body 2b is pulled apart to disengage. And
When all the snap female bodies 2a and the male bodies 2b are disengaged, the female body 3a and the male body 3b of the hook-and-loop fastener to be engaged with each other at the center of both the joint pieces 12 and 14 are separated and peeled off. Thereby, the end of the lateral air chamber a3 can be removed from the cylinder a1. The above-mentioned attachment / detachment work of the lateral air chamber a3 may be performed in a state where the air in the lateral air chamber a3 is exhausted, or may be performed in a state where the lateral air chamber a3 is expanded.

In the inflatable port of the above-described embodiment, snap female bodies 2a, 2a and 2b are connected to both connecting pieces 12, 14 of the connecting piece 1a of the connecting body 1 and the connecting piece 1b of the lateral air chamber side.
A female body 3a and a male body 3b of hook-and-loop fastener were provided together with the male body 2b. However, according to the gist of the present invention, the hook-and-loop fastener does not always need to be provided, and the joining of the two joining pieces 12 and 14 is performed by connecting the two joining pieces 12 and 14 as in a connection body 1 ′ shown in FIG. It may be performed only by engagement of the female body 2a and the male body 2b of the snap.

The connecting pieces 12 and 14 of the cylinder side connecting piece 1a and the lateral air chamber side connecting piece 1b are provided with ear pieces 15 as shown in FIG. Piece 1
You may make it easy to separate 2 and 14. The ear piece 15 projects in an outer peripheral portion where the snap female body 2a and the male body 2b fastened to appropriate positions of the joining pieces 12 and 14 are fastened, for example, an uppermost portion of the joining pieces 12 and 14. Form. Then, holding the above-mentioned ear piece 15, the two joint pieces 12,
The first snap can be easily removed by opening the outer periphery of the 14. If the first snap is removed as described above, there is a gap between the joint pieces 12 and 14 where a hand can be put in, so that the remaining snap and hook-and-loop fastener can be easily removed.

[0031]

As described above, the inflatable boat according to the present invention comprises the cylinder-side connecting pieces attached to the left and right sides of the cylinder and the lateral air chamber-side connecting pieces attached to the left and right ends of the lateral air chamber. A connecting body configured to support the left and right ends of a lateral air chamber erected between the left and right sides of the cylinder of the rubber boat main body detachably with respect to the left and right sides of the cylinder. The cylinder-side connection piece is configured by overlapping and fastening a mounting piece and a bonding piece that are adhered to the peripheral surface of both sides of the cylinder, and the lateral-chamber-side connection piece is formed on both end faces of the lateral air chamber. The attachment piece and the joining piece that are bonded to each other are overlapped and fastened, and snaps engaged with each other along the outer peripheral portions of both the joining pieces provided in the cylinder-side connecting piece and the lateral air chamber-side connecting piece. Are fixed at predetermined intervals. Therefore, by joining the joining piece of the cylinder-side connecting piece and the joining piece of the lateral air chamber-side connecting piece and sequentially engaging the snaps corresponding to each other, the outer peripheral portions of the two joining pieces are each The right and left ends of the lateral air chamber can be securely connected to the left and right sides of the cylinder, by being connected via the engagement force of the snap. The operation of connecting the two ends of the lateral air chamber to the two sides of the cylinder is a simple operation in which snaps provided along the outer peripheries of the two joint pieces are pressed and engaged sequentially. Compared with a connection structure of a type in which a string is inserted between the insertion holes and connected like a conventional one, connection work of both ends of the lateral air chamber can be performed extremely easily. In addition, when removing the lateral air chamber in the connected state, the two joint pieces are separated by snapping apart and disengaging each of the above-mentioned joint pieces, and both ends of the lateral air chamber are separated from the left and right sides of the cylinder. Can be easily removed from the part.

The inflatable boat according to the second aspect of the present invention removably engages with the center of the surface of the connecting piece of the cylinder side connecting piece and the center of the surface of the connecting piece of the lateral air chamber side connecting piece. Since the hook and loop fasteners are fastened to each other, the joining piece of the cylinder-side connecting piece and the joining piece of the lateral air chamber-side connecting piece are brought together to engage the snaps at the same time. The hook-and-loop fasteners provided at the central portions of the two joining pieces of the cylinder-side connecting piece and the lateral air chamber-side connecting piece are brought into pressure contact with each other and engaged. Thereby, in addition to the engaging force of the snaps, the engaging force of the hook-and-loop fastener acts as a connecting force for connecting the two joining pieces, and the joining force of the two joining pieces,
That is, the connection between both ends of the lateral air chamber can be further strengthened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inflatable boat embodying the present invention.

2A is a perspective view showing a side air chamber side connection piece attached to an end face of a side air chamber, and FIG. 2B is a perspective view showing a side air chamber side connection piece and a cylinder side connection piece.

FIG. 3 is a longitudinal sectional view showing a connection portion between a cylinder of the inflatable boat and an end face of a lateral air chamber.

4A is a longitudinal sectional view showing a state in which a male body and a female body of the snap are engaged, and FIG. 4B is a longitudinal sectional view showing a state in which the male body and the female body of the snap are separated.

FIG. 5 (a) is a perspective view showing a connecting body in which joining pieces are joined only by a male body and a female body of a snap, and FIG. 5 (b) is a side air chamber side connection piece in which ear pieces are provided on an outer peripheral portion of the joining piece. The perspective view which shows the edge part of the horizontal air chamber provided with.

FIG. 6 is a partially cutaway plan view of a conventional inflatable boat having a detachable lateral air chamber.

FIG. 7 is a side view of the inflatable boat in which a connection portion between a trunk and a lateral air chamber is partially cut away.

FIG. 8 is a perspective view showing an inflatable boat that connects the end of a cylinder and a lateral cylinder via a connector having a connection piece in a flat cloth shape.

[Explanation of symbols]

 a ・ ・ ・ Boat body a1 ・ ・ ・ Cylinder a3 ・ ・ ・ Side air chamber 1,1 '・ ・ ・ Connecting body 1a ・ ・ ・ Cylinder side connection piece 1b ・ ・ ・ Side air chamber side connection piece 11,13 ... Mounting pieces 12, 14 ... Joining piece 2a ... Snap female body 2b ... Snap male body 3a ... Hook fastener female body 3b ... Hook fastener male body

Claims (2)

[Claims] 1. An inflatable boat comprising a lateral air chamber extending between left and right sides of a cylinder constituting a boat body, wherein the left and right end faces of the lateral air chamber are formed on peripheral surfaces of left and right sides of the cylinder. A connection body that is detachably attached to and supported by the cylinder, the connection body includes a cylinder-side connection piece that is fixedly attached to the peripheral surfaces of the left and right side portions of the cylinder, and a left and right end surface of the lateral air chamber. A side air chamber side connection piece to be mounted and fixed, the cylinder side connection piece being attached to a peripheral surface of the cylinder and a substantially central portion thereof being overlapped on the surface side of the mounting piece to fasten the substantially central portions together. The lateral air chamber side connecting piece is attached to the left and right end surfaces of the lateral air chamber, and the substantially central portions thereof are fastened to each other by being superimposed on the surface side of the attaching piece. The snap is fixed at appropriate intervals along the outer periphery of the joint piece of the cylinder-side connecting piece. Along with the outer peripheral portion of the joining piece of the lateral air chamber side connection piece, snaps engaging with the snaps provided on the joining piece of the cylinder side connection piece are fixed at predetermined intervals, and An inflatable boat in which joining pieces are overlapped with each other, and these joining pieces are detachably joined through engagement of snaps provided on the outer periphery thereof. 2. A surface fastener which detachably engages with a central portion of the surface of the joining piece of the cylinder side connecting piece and a central portion of the surface of the joining piece of the lateral air chamber side connecting piece. 2. The inflatable boat according to claim 1, wherein the boat is an inflatable boat.