JP2000016377A - 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 an air body side connection piece 1a and a strip piece 1b, the air body side connection piece 1a is attached to a fitting piece 11 and a supporting piece 12, a folding piece 13 is projected along an outer circumferential part of the supporting piece 12, a snap 2b is attached to each folding piece 13, the snap 2b to be individually engaged with a snap 2a is attached along the strip piece 13, the supporting piece 12 is allowed to abut on an end face of the horizontal air chamber a3, each folding piece 13 is folded onto the strip pieces 13 provided on an outer circumference of the end part of the horizontal air chamber a3, the snap 2a is successively engaged with the snap 2b, and the air body side connection piece 1a is coupled with the strip piece 1b in an attachable/detachable manner.

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. 8 and 9, a conventional inflatable boat includes a lateral air chamber 10 extending between the 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 this, an inflatable boat shown in FIG. 10 has been developed as an inflatable boat for reducing the time and effort for manufacturing and installing the connection structure for the lateral air chamber as described above (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 connecting body is provided for detachably attaching and supporting the left and right ends of the lateral air chamber to the peripheral surfaces of the left and right sides of the cylinder, and the connecting body is fixedly attached to the peripheral surfaces of the left and right sides of the cylinder. A cylinder-side connecting piece, and a strip wound around the outer periphery of the end of the lateral air chamber and fixedly attached thereto. The cylinder-side connecting piece includes a mounting piece adhered to the peripheral surface of the cylinder, A substantially circular bearing piece to be brought into contact with the end face of the air chamber is superimposed, and the vicinity of the central portion is fastened to each other, and the folded pieces are projected at predetermined intervals along the outer peripheral portion of the bearing piece. A snap is fastened to each of the folds, and the folds are provided along the strip. The snaps individually engaged with the snaps are fixed at predetermined intervals, and the support pieces of the cylinder-side connection pieces are brought into contact with the end faces of the lateral air chambers, and are protruded from the outer periphery of the support pieces. Each folded piece is folded over a strip wound around the outer periphery of the end of the lateral air chamber, and snaps of the folded pieces are sequentially engaged with snaps provided on the strip, thereby connecting the cylinder side. The strip and the strip are detachably connected to each other.

In the inflatable boat, lateral air chambers are provided between the left and right sides of the cylinder constituting the boat main body, and the left and right ends of the lateral air chamber are connected to the left and right sides of the cylinder. And a connecting body that is detachably attached and supported. The connection body includes a cylinder-side mounting piece and a strip. The cylinder-side connection piece has a mounting piece adhered to the peripheral surface of both sides of the cylinder, and a substantially circular bearing piece is superimposed on the surface side of the mounting piece,
The vicinity of the center of both pieces is fixed to each other. In addition, along the outer peripheral portion of the bearing piece, the folded pieces are projected at predetermined intervals, and snaps are fixed to these folded pieces. On the other hand, on the strip wound around the outer periphery of the end of the lateral air chamber and attached and fixed, a snap that engages with a snap provided on each of the folded pieces protruding from the outer periphery of the support piece of the cylinder-side connection piece is provided. It is fixed at predetermined intervals along the piece.

That is, the support piece of the cylinder-side connecting piece and the end face of the lateral air chamber are brought into contact with each other and brought into contact with each other, and each folded piece provided on the outer peripheral part of the support piece is attached to the outer peripheral part of the lateral air chamber end. When the snap is fixed on the folded strip, the snap on the folded strip is aligned with the snap provided on the strip.
Then, by pressing the snap on the folded piece side against the snap on the strip piece side, these snaps are engaged with each other. When the remaining snaps are sequentially engaged with each other in the above-described manner, the respective folded pieces protruding from the outer peripheral portion of the support piece are coupled to the outer peripheral surface of the end of the lateral air chamber via the engaging force of the respective snaps. Further, by disengaging the engaged snaps from each other, 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 detachably engages with a substantially central portion of a surface of a support piece provided in the cylinder side connecting piece and a substantially central portion of an end surface of the lateral air chamber. It is formed by fitting a hook-and-loop fastener to each. In this case, in a state where the snap provided on each folded piece of the outer peripheral portion of the bearing piece of the cylinder side connecting piece and the snap provided on the strip wound around the outer circumference of the end surface of the lateral air chamber are engaged, The bearing pieces of the cylinder-side connecting pieces and the surface fasteners provided substantially at the center of the end surface of the lateral air chamber are engaged with each other. As a result, 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 both sides of the cylinder and both ends of the lateral air chamber.

[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 the diameter 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. It is. The length dimension of the lateral air chamber a3 is determined by the boat body a
The distance between the left and right sides of the cylinder a1 is set slightly longer than the distance between the left and right sides of the cylinder a1. The left and right ends of each 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 that is attached and fixed to the inner peripheral surfaces on both right and left sides of the cylinder a1 and the lateral air chamber a.
3. A strip 1 wound and fixed along the outer periphery of both ends of 3
b. The cylinder-side connecting piece 1a is composed of a circular mounting piece 11 adhered to the inner peripheral surfaces of the left and right sides of the cylinder a1 and a support piece 12 superposed on the surface side of the mounting piece 11 (FIG. 2, FIG. 3). The mounting piece 11 is cut as a circular cloth having a diameter slightly smaller than the diameter of the lateral air chamber a3 using a rubberized cloth. Further, the support piece 12 is cut as a circular cloth having a diameter substantially the same as the diameter of the lateral air chamber a3, and a substantially rectangular folded piece 13 is formed at a predetermined interval to protrude along an outer peripheral edge thereof. The folded piece 13 is configured to protrude radially from the outer peripheral edge of the support piece 12 (FIG. 2A). In the case of this embodiment, the folded piece 1
12 are provided along the outer periphery of the support piece 12. The folded piece 13 is not provided near the lower portion of the bearing piece 12 which comes into contact with the ship bottom a2.

Each of the folded pieces 13 projecting along the outer periphery of the bearing piece 12 as described above is fixed by caulking by attaching a snap female body 2a. At this time, the female body 2a of each snap is fixed so as to face the outer periphery of the end of the lateral cylinder a3 (FIGS. 3, 4B). Mounting piece 11 and bearing piece 12 described above
Means that they are exactly overlapped with their central parts aligned,
By sewn the circumference of the center in a circular shape,
The central portions 1 and 12 are connected to each other. When the mounting piece 11 and the support piece 12 are joined as described above, a reinforcing cloth 11a made of a rubberized cloth is applied to the back surface of the mounting piece 11 and sewn together with the two pieces 11, 12. ,
The sewn portion is reinforced. In addition, the above-mentioned reinforcing cloth 1
It is not always necessary to provide 1a, and the reinforcing cloth 11a may be omitted if the strength of the mounting piece 11 is sufficient.

The bearing piece 12 of the cylinder side connecting piece 1a is also provided.
A female body 3a of a hook-and-loop fastener cut into a circle is sewn and fixed to the central portion on the front surface side of. The female body 3a of the hook-and-loop fastener is used to sew the mounting piece 11, the reinforcing cloth 11a, and the support piece 12 together with these pieces 11, 11a, 1
2 may be sewn together. The attachment piece 11 and the support piece 12 of the cylinder-side connection piece 1a configured as described above are free to bend, with a portion on the outer peripheral side from the sewing position at the center part being separated. In addition, the above-described connection between the mounting piece 11 and the center portion of the support piece 12 may be performed by using both sewing and adhesion.

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 strip 1b wound around both ends of the lateral air chamber a3 is cut into a strip using a rubberized cloth (FIG. 2B). The strip 1b is formed to have substantially the same length as the outer peripheral length of the lateral air chamber a3.
The snap female body 2a of each of the folded pieces 13 and the snap male body 2b individually engaged with each other are fixed at predetermined intervals (FIG. 4B).

The strip 1b to which the male snap body 2b is fixed as described above is wound and adhered along the outer peripheral portions at the left and right ends of the lateral air chamber a3. Thereby, the male members 2b of the snaps fixed to the strip 1b protrude at predetermined intervals along the outer peripheral surfaces of the left and right ends of the lateral air chamber a3. still,
As described above, the strips 1b wound and adhered along the outer peripheral surfaces of the left and right ends of the lateral air chamber a3 are aligned with each other in the circumferential direction. The projecting position of the male body 2b of each snap projecting along
The left and right ends of the lateral air chamber a3 coincide with each other.

At the center of the left and right end surfaces of the lateral air chamber a3, a male body 3b of a hook-and-loop fastener which is engaged with a female body 3a of a hook-and-loop fastener provided on the bearing piece 12 of the cylinder side connecting piece 1a is attached. Fix it. The male body 3b of the hook-and-loop fastener is sewn to the surface of the mounting cloth 14 formed by cutting a rubberized cloth into a circle, and the back surface of the mounting cloth 14 is bonded to the center of the left and right end faces of the lateral air chamber a3. It is attached and fixed by doing. Therefore, the male body 3b of the hook-and-loop fastener attached to the end face of the lateral air chamber a3 is entirely joined to the female body 3a of the hook-and-loop fastener provided on the support piece 12 of the cylinder-side connecting piece 1a.

The number of female snap bodies 2a fixed to the folded pieces 13 as described above and the number of male snap bodies 2b provided along the strip 1b wound around the outer periphery of the end of the lateral air chamber a3. Is not limited to 12 as in the above embodiment,
The number may be arbitrarily increased or decreased according to the number of folded pieces. Further, in the above embodiment, the snap is a strip 1b in which the female body 2a is fixed to the folded piece 13 on the outer periphery of the support piece 12 of the cylinder side connecting piece 1a and wound around the outer periphery of the end of the lateral air chamber a3. The male body 2b is fixed to the snap, but the manner of attaching the female body 2a and the male body 2b of the snap may be reverse to that of the above embodiment. That is, the female snap body 2a may be attached to the strip 1b, and the male snap body 2b may be attached to the folded piece 13. The female body 3a of the hook-and-loop fastener
The external shape and mounting method of the male body 3b may be arbitrarily changed.

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 lateral air chamber a3 is inflated, and the lateral air chamber a3 is connected to one end of the lateral air chamber a3. The provided male body 3b of the hook-and-loop fastener is attached to the hook-and-loop fastener 3a provided at the center of the support piece 12 of the cylinder-side connecting piece 1a attached and fixed to one side surface of the cylinder a1. Are engaged (FIG. 5-a). On this occasion,
The positions of the female body 2a of the snap of each folded piece 13 protruding from the outer periphery of the support piece 12 and the male body 3b of each snap corresponding thereto are aligned.

The bearing piece 1 of the cylinder side connecting piece 1a
2 is attached to one end surface of the lateral air chamber a3, and the folded piece 13 provided on the outer peripheral portion of the support piece 12 is drawn toward the outer peripheral end of the lateral air chamber a3 and folded on the strip 1b. The snap female body 2a fixed to the folding piece 13 is aligned with the snap male body 2b provided on the strip 1b and pressed, whereby the corresponding snap female body 2a and snap male body 2b are pressed. (FIGS. 5B and 4B).
a, FIG. 4-b). Thereafter, similarly to the above, the remaining folded piece 13 is folded around the end of the lateral air chamber a3, and the folded piece 13 is folded.
The female female body 2a of the snap fastened to the male member 2b of each snap provided on the side of the strip 1b is engaged. That is, the female body 2a of each snap disposed along the outer periphery of the support piece 12
The distance between the circumferential direction and the distance between the male snap bodies 2b provided along the strip 1b are determined by directing the folded pieces 13 on the outer peripheral portion of the support piece 12 toward the outer circumference of the end of the lateral air chamber a3 as described above. The snaps 2a and 2b are set so as to overlap each other in a state where the snaps 2a and 2b are pulled in and folded on the strip 1b.

The snaps 2a, 2 remaining in the manner described above
b, the snaps 2a, 2b
The respective folded pieces 13 provided on the outer circumference of the support piece 12 are fixed to the strip 1b wound around the outer circumference of the end of the lateral air chamber a3 through the engagement force of the above. The end face of the lateral air chamber a3 in which the support piece 12 mounted and supported on the side of the cylinder a1 protrudes in a substantially spherical shape by the fastening force of each of the folded pieces 13 and the engaging force between the surface fasteners 3a and 3b. Thus, one end of the lateral air chamber a3 is mounted and supported on one side of the cylinder a1 while being held by the support piece 12 (FIGS. 1 and 3).

The above-mentioned connection work is similarly performed on the connecting body 1 of the lateral air chamber a3, and the other end of the lateral air chamber a3 is connected. As a result, the left and right ends of the lateral air chamber a3 are mounted and supported on the left and right sides of the lateral air cylinder a3 via the connector 1, respectively, and are mounted in a state of being bridged between the left and right sides of the lateral air cylinder a3. (FIG. 1). Further, in the above-mentioned mounted state, the lateral cylinder a3 is placed on the ship bottom a3 (FIG. 3).
Further, the lateral air chamber a3, which is mounted as described above, removes all the snap fasteners 2a, 2b from each other and then peels off the engaging surface fasteners 3a, 3b, thereby removing both ends of the lateral air chamber a3. It can be removed from the left and right sides of the trunk a1.

In the above embodiment, the mounting operation of the lateral air chamber a3 was performed in a state where the lateral air chamber a3 was inflated. It may be performed in an exhausted state. In this case, with the lateral air chamber a3 contracted, the hook-and-loop fasteners 3a and 3b and the snap 2
a, 2b are engaged to connect both ends of the lateral air chamber a3. After that, air is supplied from the air supply / exhaust port 31 to the side air chamber a.
3 is inflated to the mounted state shown in FIG.

In the inflatable port of the above embodiment, a folded piece 13 protruding from the outer periphery of the support piece 12 is provided with:
The female body 2a and the male body 2b of the snap are provided on the strip 1b on the side of the lateral air chamber a3, and the female body 3a and the male body 3b of the hook-and-loop fastener are provided on the support piece 12 and the end face of the lateral air chamber a3. . However, according to the gist of the present invention, the hook-and-loop fastener does not necessarily need to be provided, and the connection between the folded piece 13 and the strip 1b on the outer circumference of the support piece 12 is made like the connecting 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 number and position of the folded pieces 13 formed on the outer periphery of the support piece 12 and the shape of the folded pieces may be arbitrarily changed. For example, the cylinder-side connecting piece 1a 'shown in FIG. 7 has a circular arc-shaped cutout between the folded pieces 13' protruding from the outer periphery of the support piece 12 '. As in the above-described support piece 12 'of the cylinder-side connecting piece 1a', the notch between the fold pieces 13 'is notched in an arc shape, so that the root of each fold piece 13' is less likely to crack,
In addition, in the mounted state, it is possible to prevent wrinkles from being generated between the folded pieces 13 'on the outer periphery of the support piece 12'.

[0035]

As described above, the inflatable boat according to the present invention is provided with the connecting body for detachably attaching and supporting the left and right ends of the lateral air chamber to the peripheral surfaces of the left and right sides of the cylinder. The connection body includes a cylinder-side connection piece and a strip wound around the outer periphery of an end of the lateral air chamber, and the cylinder-side connection piece is a mounting piece that adheres to the cylinder, and a side air chamber. A bearing piece to be brought into contact with the end face is overlapped and fastened, and the folded pieces are projected along the outer peripheral portion of the bearing piece, snaps are fastened to each of the folded pieces, and along the strip. Since the snaps individually engaged with the snaps provided on the folded piece are fastened, the bearing piece is brought into contact with the end face of the lateral air chamber and is provided on the outer peripheral portion of the bearing piece. Each fold is folded over a strip wound around the outer periphery of the end surface of the lateral air chamber, and the snap secured to the fold is By sequentially engaging with the snaps provided on one of the pieces, the cylinder-side connecting piece and the strip are detachably connected to each other via the above-mentioned snap-in engagement force, and the left and right ends of the lateral air chamber are connected to the cylinder. Can be securely connected to both left and right sides of the camera. As described above, the work of connecting the both ends of the lateral air chamber to the both sides of the cylinder is performed by winding a snap of a folded piece provided along the outer periphery of both support pieces around the outer periphery of the end of the lateral air chamber. This is a simple operation that only presses against one snap and sequentially engages.Compared to a conventional connection structure in which a string is inserted between the insertion holes and connected sequentially, both ends of the lateral air chamber are connected. Can be connected extremely easily. Further, since the engagement force between the snaps acts on the outer peripheral portion of the end of the lateral air chamber, that is, on the maximum diameter portion of the lateral air chamber,
The engagement force between the snaps can be effectively exerted, and thereby the both ends of the lateral air chamber can be more firmly supported. Furthermore, when removing the lateral air chamber in the connected state, the snap ends of each of the folded pieces provided on the outer circumference of the above-mentioned support pieces are pulled apart to disengage, so that both ends of the lateral air chamber are 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 detachably engages a substantially central portion of the surface of the support piece provided in the cylinder side connecting piece and a substantially central portion of the end face of the lateral air chamber. Because it is made by fitting a hook-and-loop fastener to each,
In a state where the snap provided on each folded piece of the outer peripheral portion of the support piece of the cylinder side connection piece and each snap provided on the strip wound around the outer circumference of the end surface of the lateral air chamber are engaged with each other, The bearing pieces of the connecting pieces and the surface fasteners provided at substantially the center of the end surface of the lateral air chamber 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 force connecting between the both sides of the cylinder and both ends of the lateral air chamber, and the two sides of the cylinder are The connection force 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 plan view showing a developed cylinder-side connection piece, FIG. 2B is a plan view showing a developed strip, and a plan view showing a surface fastener attached and fixed to an end face of a lateral air chamber.

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.

5A is a perspective view showing a cylinder-side connection piece attached and fixed to a side surface of the cylinder, and FIG. 5B is a perspective view showing an end of a lateral air chamber around which a strip is wound.

FIG. 6 is a perspective view showing a connection body that connects the cylinder and the end of the lateral air chamber only by engagement of a snap.

FIG. 7 is a plan view showing a state in which a cylinder-side connecting piece in which a semicircular cutout is formed between the folded pieces on the outer periphery of the bearing piece is developed.

FIG. 8 is a partially cutaway plan view showing a conventional inflatable boat having a detachable lateral air chamber.

FIG. 9 is a side view of the inflatable boat, in which a connecting portion between a trunk and a lateral air chamber is partially cut away.

FIG. 10 is a perspective view showing an inflatable boat that connects an end of a cylinder and a lateral cylinder via a connection body having a connection piece in the form of a flat cloth.

[Explanation of symbols]

 a boat main body a1 air cylinder a3 lateral air chamber 1, 1 '... connecting body 1a, 1a' ... air cylinder side connecting piece 1b ... strip 11 ... Mounting pieces 12, 12 '... Support pieces 13, 13' ... Folded pieces 2a ... Female body of snap 2b ... Female body of snap 3a ... Female body of hook-and-loop fastener 3b ... Surface Male fastener

Claims (2)

[Claims] 1. An inflatable boat comprising a horizontal air chamber extending between left and right sides of a cylinder constituting a boat body, wherein the left and right ends of the horizontal air chamber are formed on the peripheral surfaces of the 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 attached and fixed to the peripheral surfaces of the left and right sides of the cylinder, and an outer periphery of an end of the lateral air chamber. The cylinder-side connecting piece is formed by laminating a mounting piece adhered to the peripheral surface of the cylinder and a substantially circular bearing piece abutting against the end face of the lateral air chamber. The center of the support piece is fastened to each other, and the fold pieces are projected at predetermined intervals along the outer circumference of the support piece. A snap is fastened to each of the fold pieces, and Along each piece, stop the snaps that engage with the snaps of each of the above folds at predetermined intervals. The supporting piece of the cylinder-side connecting piece is brought into contact with the end face of the lateral air chamber, and each of the folded pieces projecting from the outer peripheral portion of the supporting piece is wound around the outer periphery of the end of the lateral air chamber. An inflatable member which is folded over the turned strip, the snap of the folded strip is sequentially engaged with the snap provided on the strip, and the cylinder-side connecting piece and the strip are detachably connected. boat. 2. A hook-and-loop fastener which detachably engages with a substantially central portion of a surface of a bearing piece provided in a cylinder-side connecting piece and a substantially central portion of an end face of a lateral air chamber. Claim 1 comprising
Inflatable boat as described.