JPH0225840B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a collapsible float used in small ships and the like.

(Prior Art) As conventional floats and hulls made of resin, for example, those shown in FIGS. 11 to 15 are known.

Conventional float A shown in Figures 11 and 12
is a boat-shaped one having a sealed hollow part 01 inside, and is made of FRP.

In addition, the conventional hull B shown in FIGS. 13 to 15
The bottom plate 02 and the side plates 03, 03 are integrally molded with synthetic resin, and the side plates 03, 03 are attached to the bottom plate 02.
3 was molded so that it could be folded.

Therefore, when used as a hull, the 13th
From the folded state shown in Figure 14, side plates 03, 03
After the vessel was raised until it became substantially perpendicular to the bottom plate 02, the attitude holding member 04 was placed between the side plates 03 and 03, and the vessel was used as a ship.

Further, when the hull B is used as a float, the lid member C must be placed over the top surface of the hull B to prevent water from penetrating inside.

Furthermore, another conventional example is described in Japanese Utility Model Publication No. 7624/1983. This bulletin includes
The four flat plates, the right upper plate, the right lower plate, the left upper plate, and the left lower plate, are connected so that they can be bent using rubber joints at the lower end, center, and left and right side bends. It shows a hollow hull that can be bent to change its shape between a folded state in which both upper plates are in contact with or close to each other and face each other, and a floating state in which both upper plates are open so that they are substantially horizontal.

(Problems to be Solved by the Invention) However, such conventional floats have had the following problems.

The float A has a structure that cannot be divided or folded, so it takes up space and is inconvenient to transport and store.Furthermore, it requires an expensive mold and is time-consuming to manufacture, resulting in high costs. disadvantageous to

In addition, the hull B requires a mold like the float A described above and is disadvantageous in terms of cost. Moreover, when used as a float, the hull B
There was a problem in that it was difficult to ensure airtightness between the two.

Furthermore, the device described in JP-A No. 47-26887 did not have a means to restrict the bending of each bent part when it was in a floating state, so it was easily exposed to water pressure from waves etc. during use. There was a problem that the shape was unstable due to deformation.

Furthermore, since the bending portion is constituted by a soft joint made of rubber that is separate from each plate, there is also the problem that it takes time and effort to manufacture.

(Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the present invention provides a center-bent structure in which a single approximately spindle-shaped resin plate capable of retaining its shape is formed along the longitudinal center line. A float main body is formed by folding the float at the center and providing a joint part where the outer edge parts are joined, and the float main body is provided with an opening and a lid body for closing the opening, and the float body is joined to the central bent part. A left side bending part and a right side bending part are provided in the longitudinal direction on both sides of the float body between the left side bending part and the right side bending part, and the left side bending part and the right side bending part are respectively connected to the left side upper plate part. , the right side upper plate part and the joint side part are respectively referred to as the left side lower plate part and the right side lower plate part, and the state in which the left upper and lower plate parts and the right upper and lower plate parts are in contact with or close to each other and face each other is a folded state. and a state in which air is introduced into the float main body from the opening and both upper plate parts are approximately horizontal is defined as a float state, and in the float state, there is a center between the left bent part and the right bent part. A highly rigid posture holding member is provided which can be fixed to the float body in a state extending horizontally along the left and right upper plate parts across the bending part, and can be removed from the float body.

Therefore, in manufacturing, a plurality of bent portions are formed on one substantially spindle-shaped resin plate by cutting or thermal deformation, and the outer edge portions are joined together.

The folding float formed in this way can be transported and stored in the folded state.

In addition, when using, remove the lid from the opening of the folded float body, then spread the left and right bent parts to the left and right, and open both upper plates with the center bent part as the center. In addition, both lower plate parts are expanded around the joint part to introduce air into the float body, and then the left and right bent parts straddle the center bent part and maintain a horizontal posture along the left and right upper plates. It is used by fixing the member and then attaching a lid to the opening.

When the float is in a floating state in this way, even if it is subjected to water pressure due to waves or the like, the posture holding member prevents the center bending portion from bending, and the float is maintained in a floating state and does not deform.

(Example) Examples of the present invention are shown in FIGS. 1 to 6 and will be described in detail below.

Reference numeral 1 denotes a float main body, which is made by folding a single spindle-shaped resin plate at a central bending part 2 formed along the longitudinal center line, and is provided with a joint part 3 where the outer edge parts are joined.

The resin plate is made of polypropylene, has a thickness of about 3 mm, and is hard enough to maintain its shape.

4 and 5 are a left side bending part and a right side bending part, and the center bending part 2 is between the center bending part 2 and the joining part 3.
The float main body 1 is formed by processing the float main body 1 into a thinner wall in the longitudinal direction on both sides at a position approximately 1/3 closer to the center.

The portions surrounded by the left and right bent portions 4 and 5 and the center bent portion 2 are respectively referred to as the left side upper plate portion 6 and the right side upper plate portion 7, and the left and right bent portions 4 and 5 and the joint portion 3 The portions surrounded by are defined as a left lower plate portion 8 and a right lower plate portion 9, respectively.

Reference numeral 10 denotes an opening, which communicates the inside and outside of the float main body 1, and is opened in the left upper plate portion 6.

Reference numeral 11 is a lid that closes the opening 10 and is detachably provided in the opening 10.

The lid 11 is made of rubber, and drop-off prevention parts 12 are formed on the top and bottom.

Reference numeral 13 denotes an attitude holding means for maintaining the attitude of the float main body 1 in the floating state shown in FIGS. 1 and 2. (posture holding member) and this support rod 15 into the float body 1.
U-bolt 18 and holding plate 1 for fixing to
9 and a fixing nut 20.

That is, the U bolt 18 is attached to the left and right upper plate portions 6, 7.
A mounting sheet 17 is welded and mounted opposite the positions close to the left and right bent portions 4 and 5, respectively,
Further, the holding plate 19 is inserted through the U-bolt 18, and presses and fixes the supporting rod 15. The fixing nut 20 is screwed onto the U-bolt 18 to tighten and fix the presser plate 19.

3 and 4 show the folded state, in which the left upper and lower plate portions 6, 8, the right upper and lower plate portions 7,
9 are in contact and facing each other.

1 and 2 show a floating state in which air is introduced into the float main body 1 through the opening 10, and the left upper plate portion 6 and the right upper plate portion 7 are approximately horizontal. state.

The bent portions 2, 4, and 5 are formed by being melted by heat at the same time as the resin plate is cut into a spindle shape.

Next, the operation of the embodiment will be explained.

When manufacturing the folding float of the example, a single resin plate is cut into a spindle shape, and after forming the center bending part 2, the left bending part 4, and the right bending part 5, the center bending part 2 is cut into a spindle shape. The joint part 3 is provided by bending and folding and welding the outer edges.

Next, the U-bolt 18 is attached to the float body 1 using the attachment sheet 17, and the manufacturing is completed.

Further, when transporting or storing the foldable float of this embodiment, it can be rolled or folded in the folded state or folded state shown in FIGS. 3 and 4.

In addition, when in use, first remove the lid 11 that closes the opening 10, then widen the left side bent part 4 and the right side bent part 5 to the left and right, and both upper plate parts 6, 7. The center bent portion 2 is expanded, and both lower plate portions 8 and 9 are expanded around the joint portion 3 to introduce air into the float body 1, and then both upper plate portions 6 and 7 are expanded. When the float is in a substantially horizontal floating state, the support rod 15 is bridged between the U bolts 18, 18 provided on the left and right sides of the float body 1, and then the presser plate 1 is attached to the U bolts 18, 18.
9, 19 are inserted, and then tightened with a fixing nut 20 to press and fix the support rod 15.

Then, the float body 1 is used by closing the opening 10 with a lid 11 to prevent the air inside the float body 1 from flowing out.

In addition, the folding float of the present invention can be used as a catamaran-type yacht by framing the floats placed on the left and right sides with pipes, as shown in Figure 5, or as a catamaran-type yacht, as shown in Figure 6. It can be used as an outrigger to suppress rolling of the boat 21.

Hereinafter, embodiments of the present invention have been described in detail with reference to the drawings, but the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, although the bent portions 2, 4, and 5 were formed by melting, they may be formed by cutting.

Alternatively, it may be formed as shown in FIG.

Further, although the joint portion 3 is joined by welding, it may be joined by adhesion.

Further, the support rod 15 may be one that can expand and contract by rotation as shown in FIGS. 8 and 9, and the member for fixing the support rod 15 is not limited to the U-bolt 18. The metal bracket 22 shown in FIG. 9 may be screwed or glued together, or it may be attached to both lower plate portions 8, 9 as long as the attachment position is near the left and right bent portions 4, 5.

Further, the posture holding member is not limited to the support rod 15, but may also include a rail portion 23 formed on the float body 1 shown in FIG. 10 and a support plate 24 inserted into the rail portion 23.

Furthermore, although a rubber stopper is used as the lid body 11, a lid plate may be used in which a screw thread is provided in the opening 10 and a screw is provided to engage with the screw thread.

(Effects of the Invention) As described above, according to the present invention, since it can be transported and stored in a folded state, it is possible to obtain the effect that it is easy to transport and store without taking up much space.

Furthermore, since the float body is molded from a single resin plate, it is lightweight and easy to carry, and does not require a mold when molding, saving cost and labor. Since the part is formed by directly processing this resin plate, it can be easily formed.

Furthermore, since the float body has a closed cross-sectional structure, the internal space can be reliably sealed.

Moreover, with the present invention, when changing from the folded state to the float state, air can be introduced into the float body through the openings by simply widening the left and right bent portions, thereby eliminating the hassle of inflating the float body. does not require.

In addition, the present invention has the effect that the floating state can be maintained by the posture holding member, and in addition, by providing a lid at the opening, the air inside the float main body does not flow out to the outside, and external forces This has the effect of being able to maintain the posture more reliably against this.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the folding float of the present invention, Fig. 2 is a sectional view showing the embodiment float in a floating state, Fig. 3 is a sectional view showing the embodiment float in a folded state, and Fig. 4 5 and 6 are side views showing the folded state of the embodiment float.
The figure is a perspective view showing an example of the use of the embodiment float.
The figure is a cross-sectional view showing another example of the main part of the embodiment float, FIG. 8 is a cross-sectional view showing another example of the main part of the embodiment float,
9 and 10 are perspective views showing main parts of the embodiment float, and FIG. 11 is a perspective view showing a conventional example.
FIG. 12 is a cross-sectional view of a conventional example, FIG. 13 is a perspective view of a conventional example, FIG. 14 is a cross-sectional view of a conventional example, and FIG. 15 is a perspective view of a conventional example. 1...Float body, 2...Central bent part, 3...
...Joint part, 4...Left side bent part, 5...Right side bent part, 6...Left side upper plate part, 7...Right side upper plate part, 8...
...Left side lower plate part, 9...Right side lower plate part, 10...Opening, 11...Lid body, 13...Position holding means.

Claims (1)

[Claims] 1. A float body is formed by folding a single approximately spindle-shaped resin plate capable of retaining its shape at a central bending portion formed along the longitudinal center line, and providing a joint portion where the outer edge portions are joined; The main body is provided with an opening and a lid that closes the opening, and a left bent part and a right bent part are provided in the longitudinal direction on both sides of the float body between the central bent part and the joint part, and The central bent portion side portions of the left bent portion and the right bent portion are respectively a left upper plate portion and a right upper plate portion, and the joint portion side portions are respectively a left lower plate portion and a right lower plate portion, and A state in which the left upper and lower plate portions and the right upper and lower plate portions are in contact with or close to each other and face each other is a folded state, and a state in which air is introduced from the opening into the inside of the float body and both upper plate portions are approximately horizontal. In the floating state, it can be fixed to the float main body in a state where it extends horizontally between the left bent part and the right bent part, straddles the central bent part and along the left and right upper plate parts. What is claimed is: 1. A folding float characterized by having a highly rigid posture holding member that is removable from the float body.