JP2000025685A - Inflatable boat, and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inflatable boat and its manufacturing method which can largely reduce labor of buff covering work in relation to the inflatable boat. SOLUTION: A tube-shaped air body a1 is formed by covering a buff over the whole rubber surface exposed on the surface side of a rubber drawing cloth, cutting partial clothes constituting each portion 1'... of the air body a1 of a boat body (a) from the rubber drawing cloth, and overlapping and adhering overlap widths provided at peripheral edges of these partial clothes. Labor of buff covering work is reduced by covering the buff over the whole surface of the partial clothes.

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 a method of manufacturing the same, and more particularly, to an inflatable boat and a method of manufacturing the same, which can reduce the time and labor required for buffing a boat body. About.

[0002]

2. Description of the Related Art A conventional inflatable boat 100 shown in FIGS. 9 to 12 is a relatively large one used for going down a river or the like. The above-mentioned inflatable boat 1
00 cuts the partial distribution 101 of the predetermined shape from the rubberized cloth, and superposes and bonds the bonding margins 102 of a predetermined width provided along the peripheral edge of the partial distribution 101 of the predetermined shape, so that the boat body A tube-shaped cylinder 100a constituting 100 ′ is constituted (FIGS. 9 and 11). Further, along the bonding margin 102 portion of the cylinder 100a,
By bonding the decorative tape 103, each part distribution 10
The airtightness of the bonding margin portion, which is the joint of No. 1, is maintained.

[0003]

Conventionally, when an inflatable boat 100 as described above is actually manufactured,
First, the body 100 'of the boat 100'
a of a predetermined shape constituting each part of FIG. Each of the above-mentioned distributions 101 is cut into a developed outer shape of each part of the cylinder 100a that expands in a tubular shape, and the bonding allowances 102 provided at the edges on both sides of these distributions 101. By bonding and bonding, the distributions 101 of the respective parts in the developed state are joined in a ring shape (FIG. 1).
1). In the above state, the decorative tape 103 is adhered along the adhesion margin between the distributions 101 to maintain the airtightness of the joint.

[0004] Then, each of the distributions 101 ... annularly connected as described above is folded into a substantially C-shaped section from the inside to the outside, and the upper and lower edges of each of the folded distributions 101 are sequentially joined and adhered. By this, the rubber boat body 10
An annular cylinder 100a of 0 'is formed (FIGS. 10 and 12). Next, along the bonding margin 102 portion of each portion distribution 101 in the cylinder 100a configured as described above,
A band-shaped decorative tape 103 made of a rubberized cloth is covered and adhered to cover the step of the edge exposed at the joint of the above-mentioned bonding margin 102, and air in the air cylinder 100a leaks from the above-mentioned bonding margin 102. It is more reliably prevented from being issued.
Further, an airtight tape 105 is adhered along the edge of each of the bonding margins 102 placed on the air chamber surface side of the air cylinder 100a, and the airtight tape 105 maintains the airtightness of each of the bonding margins 102.

[0005] By the way, the surface of the rubber layer adhered to the surface of the rubberized cloth cannot obtain a sufficient adhesive force while the gloss layer remains. Therefore, as described above, in bonding the bonding margins 102 of the respective distributions 101... Made of a rubberized cloth, in order to strongly bond the respective distributions 101. By buffing the surface of the rubber layer serving as the bonding surface of the bonding margin 102 provided on the periphery of the rubber layer, the surface layer of the rubber is ground to expose the rubber ground so that a sufficient bonding force can be secured. The buffing is performed on the surface that becomes the bonding surface between the bonding margins 102 to be overlapped.
There is a portion that becomes a rubber layer on the back side of the above.

[0006] The buffing described above is performed with a decorative tape 1
03 and the protective tape 104 are adhered to each other at a predetermined width along the edge of the portion of the bonding margin 102, and a fixing cloth 106 for fixing a non-slip cloth or a fixing bracket 106a of a rope, and a model number of an emblem or a boat Buffing is similarly performed on a portion where the mounting position of the plate is bonded, so that a sufficient bonding force can be obtained at each bonding portion. further,
The above-mentioned buffing is performed by the airtight tape 105 applied along the air chamber side edge in the bonding margin portion of the partial distribution 101.
Will also be performed on the adhesive surface of.

However, conventionally, the buffing operation performed as described above is performed by a worker using a hand grinder or the like to cut off the rubber distribution cloth and cut off the bonding portion 102 of the outer peripheral portion of each portion 101. The bonding portion of the fixing cloth 106 of the fixing member 106a to be bonded to the surface of the rubber layer 100a, the bonding portion of the emblem (not shown), and the like (within the buffing area marked on the surface of the rubber layer) are carefully ground. This was a very time-consuming operation because it was necessary to buff carefully so as not to protrude from within the specified range. Incidentally, the work for buffing a relatively large inflatable boat as described above is a very time-consuming step in the process of manufacturing an inflatable boat, and there has been a demand for an improvement in work efficiency. .

Further, as described above, the inflatable boat in which the area of the adhesive margin 102 between the decorative tape 103 and the protective tape 104 is buffed is a decorative tape 103.
In order to ensure that the entire surface of the protective tape 104 is adhered, the buffing range of the rubber surface to which these are adhered is set to slightly protrude (about 3 to 5 mm) from the width of the tape 103, 104. As a result, the end of the buffing was exposed on the glossy boat surface, resulting in a lower appearance.

An object of the present invention is to provide an inflation system as described above.
An object of the present invention is to provide an inflatable boat capable of greatly reducing the labor for buffing work, and a method for manufacturing the same.

[0010]

In order to solve the above-mentioned problems, a method of manufacturing an inflatable boat according to the present invention comprises buffing the entire surface of a rubber surface exposed on the surface side of a rubberized cloth, and removing the rubber. Cut the distribution of parts of a predetermined shape constituting each part of the cylinder of the boat main body from the drawing cloth, overlap and bond the bonding margins provided on the periphery of these parts distribution, and configure the tubular cylinder It consists of

According to the above-described means, the distribution of each portion cut from the rubberized cloth in which the rubber layer on the front side is entirely buffed is in a state where the entire rubber surface exposed on the front side is ground by buffing. Becomes In the distribution of each part, the bonding margins at the peripheral edges are overlapped and bonded, and since the bonding margin is ground by buffing as described above, a good bonding strength can be obtained. In addition, as described above, the tubular air cylinder formed by bonding the bonding margins of the respective distributions is often covered with a decorative tape along the bonding margins of the respective distributions and bonded. However, even in such a case, the part to be the adhesive surface of the decorative tape has already been ground since the rubber surface of the partial distribution is completely buffed as described above. As a result, the decorative tape can be securely bonded. That is,
In the above-mentioned inflatable boat, since the surface of the part distribution having many buffing portions is already completely buffed, the buffing work conventionally performed after cutting each part distribution from the rubberized cloth is performed. Everything becomes unnecessary. still,
Also in the above-mentioned inflatable boat, it is necessary to buff at least the bonding margin and the bonding area of the airtight tape provided on the back side of the partial distribution.

According to a second aspect of the present invention, there is provided a method for manufacturing an inflatable boat, wherein the entire rubber surface exposed on both front and back surfaces of the rubberized cloth is buffed, and each part of the cylinder of the boat body is formed from the rubberized cloth. The part distributions of the predetermined shape to be cut are cut, and the bonding margins provided on the periphery of these part distributions are overlapped and bonded to form a tubular cylinder, and the edge of the bonding margin part of each part distribution on the inner surface of the cylinder. Along with an airtight tape and adhered.

According to the above-mentioned means, the distribution of the parts constituting each part of the cylinder cut from the rubberized cloth buffed on the front and back surfaces is such that the entire rubber surface exposed on the front and back surfaces is ground by buffing. State. Each part distribution is bonded by overlapping the bonding margins of the peripheral portion with each other, but since this bonding margin is ground by buffing the entire front and back surfaces, it is in a state where a good adhesive force can be obtained. .
In addition, as described above, the tubular air cylinder formed by bonding the bonding margins of the respective distributions is often covered with a decorative tape along the bonding margins of the respective distributions and bonded. However, even in such a case, the part to be the adhesive surface of the decorative tape has already been ground since the rubber surface of the partial distribution is completely buffed as described above. As a result, the decorative tape can be securely bonded.

Further, in the inflatable boat, it is necessary to buff the bonding margin provided on the back side of the partial distribution and the bonding range of the airtight tape, as described above. The surface is completely buffed and already ground, so that the airtight tape that adheres along the edge of the adhesive allowance exposed on the inner surface side of the cylinder in each part can also be securely adhered. . That is, in the inflation-type inflatable boat, not only the front surface of the partial distribution having many buffing portions, but also the back surface of the same distribution is completely buffed. All of the buffing work that you have done after doing so is no longer necessary.

According to a third aspect of the present invention, there is provided an inflatable boat, wherein the entire surface of the rubber surface exposed on the back side of the rubberized cloth is buffed, and the rubberized cloth constitutes each part of the cylinder of the boat body. The part distribution of the part distribution is cut, and the bonding margins provided around the periphery of these part distributions are overlapped and adhered to each other to form a tube-shaped cylinder, and at the edge of the bonding margin part of each part distribution on the inner surface of the cylinder. It is formed by covering and adhering an airtight tape along.

According to the above-described means, the distribution of the parts constituting each part of the cylinder cut from the rubberized cloth is ground by buffing the entire surface of the rubber surface exposed on the back side. In the distribution of each part, the bonding margins at the peripheral edges are overlapped with each other and bonded, and since the bonding margin is ground by buffing the entire back surface side, a good bonding force can be obtained. In addition, in a normal case, the tubular cylinder formed by bonding the bonding allowances of the respective portions as described above is coated with an airtight tape along the back surface (the inner surface of the cylinder) of the bonding allowance portion of the respective portions. And glue. However, the part to be the adhesive surface of the airtight tape has already been ground by buffing the entire rubber surface on the partial distribution back side as described above, so that the airtight tape can be securely bonded. That is, in the inflation-flat boat, since the rear surface of the partial distribution is already completely buffed, conventionally, after cutting each partial distribution from a rubberized cloth, the adhesive surface of the rear surface side of the partial distribution is cut. All of the buffing work done on the area is no longer necessary. In the above-mentioned inflatable boat, it is necessary to buff at least the bonding area of the bonding margin provided on the surface side of the partial distribution.

[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, and can carry 5 to 7 passengers. The inflatable boat has an environment-like cylinder a that expands in a substantially elliptical shape in plan view, and an air-mat-like bottom a2 is laid on the bottom inside the cylinder a1, and the outer peripheral edge of the bottom is ablated. The boat body a is configured by being fixed to the inner peripheral portion of the bottom surface of the trunk a1. In addition, the boat a is provided between the left and right sides of the cylinder a1 in the boat a.
The lateral air chamber a3 of the book is mounted so as to fit 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 a predetermined number of partial distributions 1... Constituting the individual parts 1 ′. The above distributions 1... Are obtained by cutting a rubberized cloth formed by covering the front and back surfaces of a base cloth with rubber layers into a shape in which the respective parts 1 ′. That is, the above-mentioned partial distributions 1... Have different sizes and outer shapes corresponding to the respective portions 1 ′ of the cylinder a 1, and these partial distributions 1. By joining them sequentially, an annular cylinder is formed. A partition 16 is provided at each of the front and rear ends and the left and right sides of the inside of the cylinder a1 to divide the cylinder a1 into four air chambers.
A supply / exhaust valve 15 is provided for each air chamber.

Along the joints of the distributions 1... Of the cylinders a1 joined as described above, a decorative tape 13 covering the steps of the rubber cloth generated at the joints is applied. Also,
A decorative tape 14 is applied along the joint of the distributions 1... Along the outer periphery of the cylinder a1. The cylinder a
The decorative tape 14 adhered along the outer periphery of 1 also functions as a protective tape. A rubber substrate 17b of a mounting bracket 17a for mounting and supporting a rope (not shown) is adhered to the outer periphery of the cylinder a1 at predetermined intervals along the outer periphery of the cylinder a1. Furthermore, a protective rubberized cloth 18 (a rubber sheet may be used) is adhered to the bottom surface of the cylinder a1, and comes into contact with rocks or the like during the descent to the cylinder a1.
To prevent the bottom surface from being damaged. In addition, the said cylinder a1
The detailed manufacturing method will be described later.

The bottom of the air cylinder a1, which is formed in a substantially elliptical shape in a plan view as described above, is fitted with a bottom a2 formed in the form of an air mat with a large number of hanging cloths, and the outer peripheral edge of the bottom a2 is fitted. Attachment edge 1 bonded along bottom surface of cylinder a1
It is fastened along 1. The bottom a2 in the ship
Along the left and right sides of the boat
A large number of drain holes 12 for draining water are provided at regular intervals. Each of the air chambers of the inflatable boat, that is, the rubberized cloth constituting the air cylinder a1, the boat bottom a2, and the lateral air chamber a3, is entirely buffed with rubber layers on both front and rear surfaces. Accordingly, the surface of the air cylinder a1, the bottom a2, and the side air chamber a3 of the inflation-type boat becomes calm and matte due to the buffing.

Next, a method of manufacturing the above-mentioned inflatable boat will be described. The air cylinder a1 and the boat bottom a2, which constitute the boat body a of the above-mentioned inflatable boat,
Is constructed using a rubberized cloth b in which rubber layers are applied to both front and back surfaces of a base cloth. The above-mentioned rubberized cloth b is manufactured as a raw material b ′, and then the rubber layers b1 and b2 on both the front and back sides.
Is buffed (FIG. 8). As a result, the surfaces of the rubber layers b1 and b2 on both the front and back surfaces of the rubberized cloth b are ground, and a state is obtained in which good adhesion can be performed. The buffing operation described above can be performed extremely efficiently by performing the raw material b ′ of the rubberized cloth b using the dedicated device for buffing c. It can be said that hassle is nothing. The buffing device c feeds the rubberized cloth b pulled out from the raw material b ′ of the rolled rubberized cloth b at a constant speed by the feed roller c1. It is buffed by c2 '. The rubberized cloth b which has been buffed as described above is wound in a roll shape in the same manner as the raw material b '(FIG. 8).

As described above, the rubberized cloth b in which the entire surfaces of the rubber layers on both the front and back sides are buffed is spread on a flat work surface, and is formed into a shape in which each part 1 'of the cylinder a1 is spread. Then, the partial distributions 1... Corresponding to the respective portions 1 ′ are formed (FIG. 4). As described above, the rubberized cloth b
Are individually different in size and outer shape. Each of the cut distributions 1... Is in a state where the entire surface of the rubber layers b1 and b2 on the front and back surfaces is buffed. That is, each of the above distributions 1 ...
Has already been buffed on the part to be the bonding surface, and all the bonding surfaces are ready for bonding. Therefore, as in the conventional case, each part distribution 1 ·
······················································································································································································ Buffing work can be omitted at all.

The distributions 1... Corresponding to the respective portions 1 ′... Of the air cylinder a 1 cut as described above are sequentially superimposed on the adhesive margin 1 a having a predetermined width provided on both side edges of adjacent ones. By bonding them together, they are joined in an annular shape in plan view (not shown) in a developed state. .. Joined in a substantially annular shape in plan view as described above are in a state in which the joint on the outer peripheral side of the cylinder a1 is opened. When the bonding margins 1a are bonded to each other as described above, both bonding margins 1a are bonded.
After the adhesive is applied to a and left for a predetermined time to evaporate the solvent of the adhesive, the bonding margins 1a are overlapped and bonded. After the bonding margins 1a are overlapped and bonded as described above, the overlapping bonding margins 1a are repeatedly pressed by using a hand roller to remove air bubbles remaining between the bonding surfaces of the bonding margins 1a and remove the bonding margins 1a. 1a is securely bonded to each other. Further, in this state, the airtight tape 19 having a required width is covered and adhered along the joining edge of each of the bonding margins 1a exposed on the inner surface side of the cylinder a1, thereby maintaining the airtightness of the joining edge portion.

Next, the bonding margins 1a 'provided on both outer peripheral edges corresponding to the joints on the outer peripheral side of the cylinders a1 of the respective distributions 1... Joined annularly in plan view as described above are overlapped and adhered. . At this time, before bonding the bonding margins 1a 'at the outer peripheral edges, one half of the airtight tape 19 having a required width is bonded along the bonding edge on the back surface of the bonding margin 1a' located inside the cylinder a1. Then, the other half of the airtight tape 19 has
It extends from the end of a '(FIG. 5). Then, as described above, the respective distributions 1... Are sequentially folded from the inner peripheral portion of the cylinder a1 toward the outer peripheral side to bend into a substantially C-shaped cross section, and the above-mentioned outer margins 1a 'are overlapped and adhered. I do. Also in this case, as in the case described above, the hand roller is repeatedly pressed on the overlapped bonding margin 1a 'to securely bond the bonding surfaces of the bonding margins 1a' to each other (FIGS. 5 and 6). .

At the same time as the above-mentioned bonding margins 1a 'are bonded to each other, the bonding margin 1a located inside the cylinder a1 as described above.
The other half of the airtight tape 19 adhered along the joining edge on the back surface of a 'is pressed against and adhered to the back surface of the distribution 1... along the joining edge, and repeatedly pressed using the hand roller as described above. Thus, the other half of the airtight tape 19 is simultaneously bonded together with the bonding margin 1a '(FIG. 6). The bonding margins 1a and 1a 'provided on the back side (inner side of the cylinder) of each of the above-mentioned distributions 1...
... is in a state where the back side is completely buffed. Therefore, unlike the related art, there is no need to use a hand grinder or the like to buff the range of the bonding margins 1a and 1a 'on the back surface of the cylinder a1 and the range where the other half of the airtight tape 19 is bonded.

The bonding between the outer peripheral side bonding margins 1a 'of the respective distributions 1... Performed as described above sequentially proceeds along the outer circumference of the cylinder a1 while bending the cross section substantially to the C side for each distribution 1. And all the partial distributions 1 joined annularly as described above.
Are bonded to the outer periphery. When all of the bonding margins 1a 'on the outer peripheral side of each portion distribution 1... Are bonded, a tubular a1 having a tubular shape and a substantially elliptical shape in plan view is formed.
(Fig. 2). Note that, as described above, the cylinder a1
Are joined and adhered to each other to form the cylinder a1 in the process of forming the cylinder a1 by providing the partition walls 16 inside the front, rear, left and right portions inside the cylinder a1, respectively. The interior is divided into four air chambers, and a supply / exhaust valve 15 is provided for each air chamber.

The cylinder a formed in a tubular shape as described above
1 is covered with a decorative tape 13 made of the same rubberized cloth b as the respective distributions 1... Constituting the cylinder a1 along the joining edges of the side edges of the distributions 1. I do. The decorative tape 13 is also buffed over the entire surface of the rubber layers on both the front and back surfaces in the same manner as in the partial distribution 1. The decorative tape 14 is covered and adhered along the joining edge of the outer periphery of the cylinder a1. The decorative tape 14
Is a tape which is thicker than the decorative tape 13 described above, and a large number of small protection projections are formed on the surface thereof.

A protective rubber cloth 18 is coated and adhered to the bottom surfaces of the left and right sides of the cylinder a1. still,
The protective tape 14 and the protective rubber cloth 18 are adhered to the surface of the cylinder a1 after buffing the entire back surface serving as an adhesive surface. Further, a rubber substrate 17 of a mounting bracket 17a for mounting and supporting the rope 16 is provided at a predetermined position on the surface of the cylinder a1.
b, the emblem 32 and the like are bonded in the same manner. When the decorative tapes 13 and 14, the protective rubber cloth 18, the rubber substrate 17b, the emblem 32, and the like are adhered to the surface of the cylinder a1 as described above, the adhesive that has protruded around these is impregnated with an appropriate amount of solvent. Wipe with a waste cloth.

In the manufacturing method of the present invention as described above, when the decorative tapes 13 and 14, the protective rubber cloth 18, the rubber substrate 17b, the emblem 32 and the like are adhered to the surface of the cylinder a1, Since the rubber layer on the surface of a1 has already been completely buffed, the cylinder a1
There is no need to use a hand grinder or the like to buff the area on the surface where the respective adhesive members are to be bonded.
The bonding members 13, 14, 1 are placed at predetermined bonding positions on one surface.
7b, 18, 32, etc. can be directly bonded. The inflatable boat configured as described above,
Since the surface of the cylinder a1 is completely ground by buffing and becomes a uniform matte state without leaving, the appearance is very good. The inflatable boat according to the above-described embodiment has a distribution 1 in each part in a tubular cylinder a1.
The decorative tape 13 was covered and adhered along the joining edge portion between the side edge portions of. However, the present invention can be similarly applied to an inflatable boat that is configured such that a decorative tape is not adhered to a joining edge between side edges of each distribution.

An air mat-shaped boat bottom a2 configured to fit the opening of the bottom of the cylinder a1 configured as described above is fitted to the inside of the boat, and a peripheral portion provided along the outer periphery of the boat bottom a2. 21 is fixed along the mounting edge 11 provided along the inner periphery of the bottom surface of the cylinder a1 so that the cylinder a1 and the ship bottom a
2 is constituted. The boat body a
Are mounted in such a manner that three lateral air chambers a3 each having a substantially columnar shape are fitted therein, and each lateral air chamber a3 is mounted in a state of being bridged between the left and right sides of the cylinder a1. Each side air chamber a mentioned above
3 are detachably connected to the left and right sides of the cylinder a1 via a connecting member (not shown) provided with a connecting cord, a hook-and-loop fastener or the like. The ship bottom a2 and the lateral air chambers a3 are also formed of a rubberized cloth b in which rubber layers on both front and back surfaces are completely buffed, similarly to the above-described cylinder a1. In addition, the above-mentioned ship bottom a2 and each lateral air chamber a3
May be configured by buffing only those parts that need to be bonded, as in a conventional manufacturing method. Further, the configuration of the ship bottom a2 and the number and shape of the lateral air chambers may be arbitrarily changed. For example, the boat bottom a2 of the boat body may be formed of one piece of rubber cloth, and a foldable bottom plate may be laid on the boat bottom a2.

The above-mentioned inflatable boat was constructed by using a rubberized cloth b in which rubber layers b1 and b2 on both front and back surfaces were entirely buffed. However, according to the gist of the present invention, only the rubber layer b1 on the front side of the rubberized cloth b is completely buffed, and the partial distribution 1... May be cut from the rubberized cloth b and the distributions 1... May be joined to produce an inflatable boat in which the entire surface of the cylinder a1 is buffed (not shown). .

As described above, in the method for manufacturing an inflatable boat in which only the rubber layer b1 on the surface side of the rubberized cloth b is entirely buffed, the bonding allowances 1a and 1a ', the decorative tapes 13, 14, and the like. Protective rubber cloth 18, rubber substrate 1
7b, the surfaces of the distributions 1... Where there are many buffing points, such as the bonding points of the emblem 32, are already completely buffed. Thus, after cutting each distribution 1... From the rubberized cloth b, all the buffing work conventionally performed on the surface of the distribution becomes unnecessary. In the inflatable boat, it is necessary to buff the area of the bonding margins 1a, 1a 'and the hermetic tape 19 provided on the back side of the partial distribution 1.

Further, in the inflatable boat according to the present invention, only the rubber layer b2 on the back side of the rubberized cloth b is completely buffed, and the distribution of parts 1 constituting each part of the cylinder a1.
Are cut from the above-mentioned rubberized cloth b, and these parts distribution 1.
May be manufactured to produce an inflatable boat in which the back surface (inner surface) of the cylinder a1 is entirely buffed (not shown).

As described above, in the method of manufacturing an inflatable boat in which only the rubber layer b2 on the back surface side of the rubberized cloth b is entirely buffed, the bonding margins 1a and 1a ', the airtight tape 19, and the partition wall 31 are removed. The back surface of each of the distributions 1... Requiring buffing, such as a bonding portion, is already completely buffed. This eliminates the need for all the buffing work conventionally performed on the back surface of each distribution 1 after cutting each distribution 1... From the rubberized cloth b. still,
In the above-mentioned inflatable boat, partial distribution 1 ...
It is necessary to buff the bonding margins 1a and 1a 'and the bonding areas of the decorative tapes 13 and 14 provided on the surface side of the buffer as in the conventional case.

[0035]

As described above, in the method for manufacturing an inflatable boat according to the present invention, the entire surface of the rubber surface exposed on the front side of the rubberized cloth is buffed, and the boat body is compressed by the rubberized cloth. A distribution of parts having a predetermined shape constituting each part of the body is cut, and bonding margins provided on the periphery of these parts are overlapped and adhered to form a tubular cylinder. Therefore, as in the buffing work in the conventional manufacturing method, the range of the adhesion allowance of the surface side rubber layer of each part distribution, that is, carefully and carefully so as not to protrude within the range of the buffing scribed on the rubber layer surface. It is not necessary to perform a grinding operation, and a simple operation of simply buffing the entire surface of the rubber surface on the front side of the rubberized cloth can be completed.
In addition, since the buffing can be performed extremely efficiently using a dedicated machine for buffing a rubberized cloth, it can be said that the labor required for the buffing work is negligible. Therefore, according to the manufacturing method of the present invention, it is possible to greatly reduce the work of buffing the surface of the part distribution, which has conventionally required a great deal of trouble, and to significantly improve the manufacturing efficiency of the inflatable port.

As described above, the tubular air cylinder formed by bonding the bonding margins of the respective portions is often covered with a decorative tape along the surface of the bonding margin of the respective portions and bonded. , The part that becomes the adhesive surface of the decorative tape,
Since the rubber surface of the partial distribution surface is already ground by buffing, the decorative tape can be securely bonded. Further, outfitting materials (protective rubber cloth, rubber substrate, emblem, etc.) that adhere to the surface of the cylinder can be easily and reliably adhered similarly to the decorative tape. The inflatable boat manufactured by the above-described manufacturing method is unified to a state in which the surface of the cylinder is entirely buffed and ground (matte state). Therefore, like a conventional inflatable boat, a buffed ground surface may be exposed on the surface of the glossy boat (on both sides of the decorative tape of the cylinder) to cause a deterioration in appearance. Can be avoided.

According to a second aspect of the present invention, there is provided a method for manufacturing an inflatable boat, wherein the entire rubber surface exposed on both the front and back surfaces of the rubberized cloth is buffed, and each part of the cylinder of the boat body is formed from the rubberized cloth. The part distributions of the predetermined shape to be cut are cut, and the bonding margins provided on the periphery of these part distributions are overlapped and bonded to form a tubular cylinder, and the edge of the bonding margin part of each part distribution on the inner surface of the cylinder. Is covered with an airtight tape and adhered. Therefore, as in the buffing work in the conventional manufacturing method, the range of the adhesion allowance of the rubber layers on both the front and back surfaces of each part distribution, that is, so as not to protrude within the range of the buffing scribed on the rubber layers on the front and back surfaces. It is not necessary to perform the work of grinding carefully and carefully, and it is possible to perform a simple work of merely buffing the rubber surfaces on both sides of the rubberized cloth. In addition, since the buffing can be performed very efficiently using a dedicated machine for buffing a rubberized cloth, it can be said that the labor required for the buffing operation is negligible. Therefore, according to the manufacturing method of the present invention, buffing work, which has conventionally required a great deal of time in the process of manufacturing an inflatable boat, is greatly reduced, and the manufacturing efficiency of an inflatable port is significantly improved. Can be.

Further, as described above, the tubular air cylinder formed by bonding the bonding allowances of the respective distributions is often bonded by covering a decorative tape along the surface of the bonding allowances of the respective distributions. , The part that becomes the adhesive surface of the decorative tape,
As described above, since the rubber surface of the partial distribution surface is completely buffed, it is already in a ground state, whereby the decorative tape can be securely bonded. further,
Outfitting materials (rubber cloth for protection, rubber substrate, emblem, etc.) that adhere to the surface of the cylinder can be easily and reliably adhered similarly to the decorative tape. Furthermore, as described above, the tube-shaped cylinder formed by bonding the bonding margins of the respective distributions to each other is covered with an airtight tape along the edges of the bonding margins of the respective distributions on the inner surface side of the cylinder and bonded. It is normal to maintain airtightness, but the part to be the adhesive surface of the decorative tape is also in a state where the entire rubber surface on the back surface side of the partial distribution is ground by the buffing, thereby The adhered airtight tape can be reliably performed. The inflatable boat manufactured by the above-described manufacturing method is unified to a state in which the surface of the cylinder is entirely buffed and ground (matte state). Therefore, like a conventional inflatable boat, a buffed ground surface may be exposed on the surface of the glossy boat (on both sides of the decorative tape of the cylinder) to cause a deterioration in appearance. Can be avoided.

According to a third aspect of the present invention, there is provided a method for manufacturing an inflatable boat, wherein the entire rubber surface exposed on the back side of the rubberized cloth is buffed, and each part of the cylinder of the boat body is formed from the rubberized cloth. The part distributions of a predetermined shape to be cut are cut, and the bonding margins provided around the periphery of these part distributions are overlapped and adhered to each other to form a tubular cylinder and a bonding margin part of each part distribution on the inner surface of the cylinder. Is covered with an airtight tape along the edge of the tape. Therefore, as in the case of the buffing work performed in the conventional manufacturing method, the range of the bonding allowance on the back side of each part distribution, that is, careful not to protrude within the range of the buffing scribed on the back of the rubber layer. In addition, as compared with the operation of carefully grinding, it is possible to complete a simple operation of buffing the entire rubber surface on the back side of the rubberized cloth. In addition, since the buffing can be performed very efficiently using a dedicated machine for buffing a rubberized cloth, it can be said that the labor required for the buffing operation is negligible. As a result, according to the manufacturing method of the present invention, the labor of the buffing work, which has been extremely troublesome, is greatly reduced,
The production efficiency of the inflatable port can be effectively improved.

Further, as described above, the tubular cylinder formed by bonding the bonding allowances of the respective parts to each other is covered with an airtight tape along the back surface (the inner surface of the cylinder) of the bonding allowance part of the respective parts. It is normal to adhere, but the part to be the adhesive surface of the airtight tape is also already ground because the rubber surface on the back side of the partial distribution is buffed as described above. Thus, the hermetic tape can be securely bonded.

Since the inflatable boat according to the fourth aspect is manufactured by the manufacturing method according to the first aspect, the same effect as the above-described first aspect is obtained.

Since the inflatable boat according to the fifth aspect is manufactured by the manufacturing method according to the second aspect, the same effect as the above-described second aspect is obtained.

Since the inflatable boat according to the sixth aspect is manufactured by the manufacturing method according to the third aspect, the same effect as the above-described third aspect is achieved.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the inflatable boat.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a plan view showing a developed state of distribution of each part cut from a rubberized cloth.

FIG. 5 is a perspective view showing a state in which the distribution of each part joined in an annular shape is bent into a substantially C-shaped cross section, and a bonding margin on the outer peripheral side of the cylinder is bonded.

FIG. 6 is a vertical cross-sectional view of the cylinder in a state where an adhesion margin on the outer peripheral side of the cylinder is bonded.

FIG. 7 is a longitudinal sectional view of a completed cylinder.

FIG. 8 is a front view showing a state in which buffing is performed on both the front and back surfaces of the raw material of the rubberized cloth using the buffing device.

FIG. 9 is a perspective view showing a conventional inflatable boat.

FIG. 10 is a perspective view showing a state in which each bonding surface on the surface of a cylinder of a conventional inflation-type boat is buffed.

FIG. 11 is a perspective view showing a state in which the distribution of each portion joined in an annular shape is bent into a substantially C-shaped cross section in the manufacturing process of the inflatable boat, and a bonding margin on the outer peripheral side of the cylinder is bonded.

FIG. 12 is a longitudinal sectional view showing a bonded portion of the cylinder.

[Explanation of symbols]

 a: Boat body a1: Cylinder b: Rubberized cloth b ': Raw material 1: Distribution of parts 1': Each part (cylinder) 1a, 1a '... Adhesion allowance 13, 14: decorative tape 19: airtight tape

Claims (6)

[Claims] 1. A buffing is applied to the entire surface of a rubber surface exposed on the surface side of a rubberized cloth, and a distribution of parts having a predetermined shape constituting each part of a cylinder of a boat body is cut from the rubberized cloth. A method for manufacturing an inflatable boat comprising a tube-shaped air cylinder, wherein bonding margins provided on the periphery of the distribution are overlapped and bonded. 2. A buffing is applied to the entire surface of the rubber surface exposed on both the front and back surfaces of the rubberized cloth, and the distribution of parts having a predetermined shape constituting each part of the cylinder of the boat body is cut from the rubberized cloth. Adhesive margins provided on the periphery of the distribution are overlapped and adhered to form a tubular cylinder, and the airtight tape is coated and adhered along the edge of the adhesive margin portion of each distribution on the inner surface of the cylinder. A method for manufacturing an inflatable boat. 3. A buffing is applied to the entire surface of the rubber surface exposed on the back side of the rubberized cloth, and a distribution of parts having a predetermined shape constituting each part of the cylinder of the boat body is cut from the rubberized cloth. Adhesive margins provided around the periphery of the distribution are overlapped and adhered to each other to form a tubular cylinder, and to adhere by covering with an airtight tape along an edge of an adhesive margin portion of each distribution on the inner surface of the cylinder. A method for manufacturing an inflatable boat comprising: 4. An inflatable boat manufactured by the method according to claim 1. 5. An inflatable boat manufactured by the method according to claim 2. 6. An inflatable boat manufactured by the method according to claim 3.