JP5847479B2 - Fluid power generator - Google Patents

Description

The present invention includes a rotating member which is rotated by the fluid flow, relates to a fluid power equipment that converts the rotational energy of the rotating body into electrical energy.

  2. Description of the Related Art Conventionally, there is a fluid power generation apparatus that converts rotational energy of a rotating body that rotates by a fluid flow into electrical energy. In this fluid power generation device, when the fluid receiving port is at the upstream side in the flow of the fluid, the fluid receiving device is in a state where the fluid can be received, and when the fluid receiving port is at the downstream side, the fluid cannot be received inside. There has been proposed a fluid power generation apparatus in which a plurality of fluid receiving members that change to an impossible state are attached to a rotating body. As the rotating body rotates, the fluid receiving member alternately repeats the acceptable state and the unacceptable state. In this rotating body, a plurality of fluid receiving members are respectively arranged at predetermined positions of the rotating body so that at least one of the plurality of fluid receiving members is always in an acceptable state. In addition, the fluid receiving member that is in an unacceptable state contracts the fluid receiving member and reduces the fluid resistance, so that the fluid receiving member can be prevented from obstructing the rotation of the rotating body. On the other hand, a fluid flows into the fluid receiving member in the acceptable state and expands, and the fluid receiving member is pushed by the flow of the fluid, whereby a force for rotating the rotating body can be obtained. As what disclosed such a fluid electric power generating apparatus, what was described, for example in patent documents 1-3 is known.

  In addition, there are two floating bodies that have a fluid receiving member in the water that is in a receivable state that can receive a fluid when moved in the backward direction, and in a non-acceptable state that cannot receive a fluid when moved in the forward direction. Another water moving device is conceivable. According to this water moving tool, the fluid receiving member in the accepting state expands to receive water resistance, and the fluid receiving member in the unacceptable state contracts to reduce the water resistance. For example, by moving back and forth alternately, it is possible to move forward on the water. As what disclosed the water moving tool, what was described in patent document 4, for example is known.

JP 2002-310051 A JP 2008-255886 A Japanese Patent Laid-Open No. 61-244876 Japanese Patent Laid-Open No. 61-21888

  However, when the present inventor has researched, even when the fluid receiving member is ready to be received, when no fluid flows into the fluid receiving member or when it takes a considerable amount of time for the fluid to flow into the fluid receiving member. I found out that This is because the fluid receiving member that has become unacceptable is closed even if the fluid receiving port is closed, and once the fluid receiving port is closed, the rotating body rotates and the fluid receiving member becomes receivable. This is probably because the fluid is less likely to flow into the fluid receiving member from the fluid receiving port. If no fluid flows into the fluid receiving member, the fluid flow cannot contribute to the rotational motion of the rotating body. In addition, in the expansion process until the fluid flows into the fluid receiving member and the fluid receiving member completely expands, the fluid flowing into the fluid receiving member acts as a force to expand the fluid receiving member, and the rotating body rotates. It hardly acts as energy. If it takes time for the fluid to flow into the fluid receiving member, it takes time for the fluid flow to contribute to the rotational motion of the rotating body. As a result, there is a risk that the rotating body does not rotate or the rotational speed of the rotating body decreases.

  Also, in the case of the water moving tool, as in the case of the above-described rotating body, when no fluid flows into the fluid receiving member even when the floating body is moved backward, it takes time until the fluid flows into the fluid receiving member. It turns out that it may take. In these cases, there may be a problem that the floating body cannot move even if it is moved in the front-rear direction, or the amount of movement that moves on the water becomes small.

In view of the above circumstances, and an object thereof is to provide a fluid power equipment which contrivances have been made that can operate efficiently.

The fluid power generation apparatus of the present invention that achieves the above object has a rotating body that rotates by a fluid flow, and in the fluid power generation apparatus that converts the rotational energy of the rotating body into electric energy,
Provided in the rotating body and rotating the rotating body, the fluid receiving port is located on the upstream side of the fluid flow, and the fluid receiving port can receive the fluid therein, and the fluid receiving port on the downstream side of the flow. Two fluid receiving members that change state between an unacceptable state in which the inlet is located and the fluid cannot be received therein;
The rotating body generates rotational energy when fluid flows into the fluid receiving member in the acceptable state,
When the one fluid receiving member is in a receivable state, the other fluid receiving member is in a non-receivable state, and when the fluid receiving member is in the receivable state, the two fluid receiving members are der having a fluid inlet member for internally expanding the direct the fluid fluid receiving port of is,
The fluid receiving member is disposed so that a part of an edge that defines the fluid receiving port is movable in a direction in which the fluid receiving member comes in contact with and separates from the rotating body, and a distance between the part and the rotating body changes. The size of the fluid inlet also changes,
The fluid introducing member is characterized with spacing members to keep the distance more than a predetermined distance, the Der Rukoto having a rigid member of higher rigidity than the rigidity of the bag in said portion.

According to the fluid power generation device of the present invention, it is possible to quickly and surely expand the fluid reception port of the fluid receiving member that is in a receivable state, efficiently rotate the rotating body, and increase the electric energy generated by the power generation device. be able to. Moreover, since the opening according to a predetermined space | interval is maintained, a fluid can be rapidly flowed in into the fluid receiving port of the fluid receiving member in a receivable state.

The fluid receiving member is arranged to be movable in a direction in which a part of an edge that defines the fluid receiving port comes into contact with and separates from the rotating body, and the fluid receiving member is separated from the rotating body, The size of the entrance is enlarged,
The fluid introduction member has a protruding portion protruding from the part to the outside of the fluid receiving member,
It is preferable that the protruding portion is inclined in a direction in which the part is separated from the rotating body toward the protruding end.

  By having the said protrusion part, a fluid can be rapidly made to flow in into the fluid receiving port of the fluid receiving member in a receivable state.

  Further, the spacing member may be integrated with the rigid member.

According to the present invention, it is possible to provide a fluid power equipment which contrivances have been made that can operate efficiently.

1 is a plan view showing a fluid power generation apparatus according to a first embodiment of the present invention. It is a side view of the fluid power generation device of FIG. It is the perspective view which looked at the rotary body shown in FIG. 1 from the lower side. It is a perspective view which shows the state which the rotary body shown in FIG. 1 rotates with the flow of water. (A) is a figure which shows the state which the fluid receiving member shown in FIG. 4 swelled, (b) is a figure which shows the state which the fluid receiving member shown in FIG. 4 became flat shape. It is a side view which shows the installation state of the fluid electric power generating apparatus which concerns on 2nd Embodiment. It is a perspective view which shows the principal part of the fluid electric power generating apparatus shown in FIG. It is a side view which shows the fluid electric power generating apparatus which concerns on 3rd Embodiment. It is the perspective view which looked at the rotary body which concerns on 4th Embodiment from the lower surface (landing surface) side. 9A is a view showing a state where the fluid receiving member shown in FIG. 9 is swollen, FIG. 9B is a view taken along an arrow A in FIG. 9A, and FIG. 9C is a plan view of the fluid receiving member shown in FIG. The figure which shows a state, (d) is a B arrow directional view of (c). Fig.11 (a) is a side view which shows the water moving tool which concerns on 5th Embodiment, (b) is the bottom view which looked at Fig.11 (a) from the lower side. It is CC cross section of FIG.11 (b).

  A fluid power generation apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  First, a first embodiment will be described with reference to FIGS. FIG. 1 is a plan view showing a fluid power generation apparatus 1 according to the first embodiment of the present invention, and FIG. 2 is a side view of the fluid power generation apparatus 1 of FIG.

  As shown in FIGS. 1 and 2, the fluid power generation apparatus 1 according to the present embodiment includes a floating unit 4 that floats on the surface of the water or the sea, and mooring means 9 that anchors the floating unit 4 in a predetermined region. . The floating unit 4 includes a rotating body 3 that rotates by a fluid flow (water flow), and a generator 7 provided on the upper surface of the rotating body 3. In FIG. 1, the generator 7 is omitted. A plurality of fluid receiving members 5 are attached to the lower surface (landing surface) of the rotating body 3.

  The mooring means 9 includes a frame 18 formed of a rectangular frame to which a support arm 11 that supports the floating unit 4 is connected, a support 13 fixed to a fixed area such as a rocky place, and a frame 18 and a support 13. And a link member 15 that is rotatably connected to the link member 15. The link member 15 includes a main link 15a that is rotatably connected to the column 13, and a pair of connection links 15b that are rotatably connected to the main link 15a. The ends of the jacks 20 are connected to the support columns 13 and the main links 15a, respectively. When necessary, such as when a flood occurs, the floating unit 4 can be lifted from the water surface by lifting the main link 15a upward by the jack 20.

  A bearing 17 is fixed to the tip of the support arm 11, and the rotating shaft 7 a of the generator 7 is connected to the support arm 11 through the bearing 17. The main body 7b of the generator 7 is fixed to the frame 18 by a fixing mechanism (not shown).

  Rotational energy of the rotator 3 generated by the water flow is converted into electrical energy by the generator 7, and the obtained electric power is stored in a capacitor by a cable (not shown) or sent to an electric power consumer.

  FIG. 3 is a perspective view of the rotating body 3 floating on the water surface as viewed from the lower surface (landing surface) side.

  The rotating body 3 is formed in a disk shape from a material that can obtain buoyancy, such as polystyrene foam, and a plurality of fluid receiving members 5 are provided on the lower surface thereof at substantially equal intervals in the circumferential direction. In the present embodiment, the rotating body 3 is floated by the floatability of the material, but the inside may be hollowed to obtain buoyancy. In the present embodiment, an example in which eight fluid receiving members 5 are provided is shown, but two or more fluid receiving members 5 may be provided. A central portion of the rotating body 3 is a shaft base 19 that fixes the rotating shaft 7 a of the generator 7.

  The fluid receiving member 5 is formed in a pocket shape with a flexible material such as vinyl resin, and the fluid receiving port 21 into which the fluid (water) flows is arranged in the same direction with respect to the rotation direction of the rotating body 3. Has been. Fluid receiving member 5 Note that the fluid receiving member 5 may be formed in a bag shape, and a part of the bag shape may be attached to the rotating body 3. The fluid receiving member 5 is fixed to the rotating body 3 with screws or the like at several points so that water does not leak so much. Of course, all the portions in contact with the rotating body 3 may be fixed.

  A part of the edge portion 50 (hereinafter referred to as an opposite edge portion 501) that defines the fluid receiving port 21 of the fluid receiving member 5 is disposed so as to be able to contact with and separate from the rotating body 3. The size of the fluid receiving port 21 is increased when the facing edge portion 501 is separated from the rotating body 3.

The fluid receiving member 5 is provided with a fluid introducing member 16. The fluid introduction member 16 is a plate-like member that is higher in rigidity than the fluid receiving member 5 and does not deform even when it receives a water flow. As shown in FIGS. 5A and 5B, the fluid introducing member 5 There is a base portion 160 that is inside and attached to the opposing edge portion 501, and a protruding portion 161 that protrudes from the opposing edge portion 501 to the outside of the fluid receiving member 5. The protruding portion 161 is inclined in a direction in which the opposing edge portion 501 is separated from the rotating body 3 toward the protruding end.
For easy understanding, FIG. 3 shows a state in which each fluid receiving member 5 is completely swollen, in other words, a state in which the maximum resistance shape is given to the rotating body 3 with the largest rotational energy. In a state where it does not act, it does not have such shape retaining property, and is deformed and flattened by the above flexibility.

  4 is a perspective view showing a state in which the rotating body 3 shown in FIG. 1 is rotated by a water flow, FIG. 5A is a view showing a state in which the fluid receiving member 5 shown in FIG. 4 is inflated, and FIG. FIG. 5B is a diagram illustrating a state where the fluid receiving member 5 illustrated in FIG. 4 is flat.

  As shown in FIG. 4, the water flow indicated by the broken-line arrows flows in the same direction with respect to the entire rotating body 3. With respect to this flow, the fluid receiving member 5 on the near side in FIG. 4 is in a receivable state in which the fluid receiving port 21 is located on the upstream side of the water flow and can receive water. In this acceptable state, since the fluid receiving port 21 faces the water flow, water enters from the fluid receiving port 21 and the fluid receiving member 5 expands as shown in FIG. The swollen fluid receiving member 5 becomes a resistor against the water flow, and generates rotational energy for rotating the rotating body 3 in the direction of arrow R in FIG.

  The fluid receiving member 5 swelled by the water moves as the rotating body 3 rotates. When the fluid receiving member 5 has a fixed shape, the fluid receiving member 5 on the back side in FIG. 4 becomes a resistor that rotates the rotating body 3 in the direction opposite to the R direction, and the rotational energy is extremely weakened. Or it will antagonize and it will be in a state where it does not rotate.

  The fluid receiving member 5 in the present embodiment cannot receive a fluid when the fluid receiving member 5 is moved by the rotation of the rotating body 3 and the fluid receiving port 21 is located on the downstream side (back side in FIG. 4) of the flow. It becomes a state. Since the fluid receiving member 5 is formed of a flexible material, when the fluid receiving member 5 receives a water flow from the side opposite to the side where the fluid receiving port 21 exists in a state where the fluid receiving member 5 cannot receive the fluid, FIG. ), The water inside the fluid receiving member 5 is discharged, the fluid receiving member 5 becomes flat, and the fluid receiving port 21 is closed. Further, when the fluid receiving member 5 is flat, the fluid receiving member 5 has almost no influence as a resistor that weakens the rotation.

  With such a configuration, the water flow in any direction can be used in the same manner simply by floating the rotating body 3 on the water surface, and the power generation efficiency can be increased with a simple and low-cost configuration.

  In the present embodiment, the deformability (variability) of the fluid receiving member 5 is obtained by a flexible material. However, if a foldable fold is provided in advance by a hinge or the like, the fluid receiving member 5 is not a flexible material. However, the ease of deformation can be obtained.

  Further, since the fluid introduction member 16 is attached to the opposing edge portion 501, the fluid receiving member 5 becomes unacceptable as shown in FIG. When the state changes to the acceptable state, water quickly flows into the fluid receiving member 5. When the fluid introduction member 16 is not present, the closed fluid receiving port 21 is pressed against the rotating body 3 by the water flow even when the receiving state is enabled, and the fluid receiving port 21 remains closed. There is. In the present embodiment, when the fluid receiving port 21 of the fluid receiving member 5 is located on the upstream side, the water flowing toward the protruding portion 161 is directed into the mouth of the fluid receiving port 21 by the protruding portion 161. That is, the protrusion 161 can quickly and surely expand the fluid receiving port 21 by guiding water into the fluid receiving member 5. Further, the water flow toward the projecting portion 161 also acts as a force for separating the fluid introduction member 16 (opposing edge portion 501) from the rotating body side edge portion, so that the fluid receiving port 21 can be expanded more quickly and reliably.

  According to this embodiment, since the fluid receiving member 5 that has been in the acceptable state can be quickly and reliably inflated, the power generation efficiency of the fluid power generation apparatus 1 can be increased by efficiently rotating the rotating body 3.

  Next, a second embodiment will be described based on FIGS. Note that redundant descriptions of the configuration and functions described in the above embodiment will be omitted unless particularly necessary, and only the main part will be described (the same applies to other embodiments below).

  FIG. 6 is a side view showing an installation state of the fluid power generation apparatus according to the second embodiment, and FIG. 7 is a perspective view showing a main part of the rotating body shown in FIG.

  As shown in FIG. 6, the fluid power generation apparatus 1 according to the present embodiment is used by being installed on an inclined surface 41 where, for example, river water flows down.

  The fluid power generation device 1 includes a rotating body 32 and two legs 43 fixed to the inclined surface 41 with a space therebetween. The rotating body 32 includes two rollers 45 as support members that are rotatably supported by the legs 43, and a moving body that is looped around these rollers 45 so as to circulate and is endless as a main body of the rotating body. Belt 47 and a plurality of fluid receiving members 5 arranged on the surface of the belt 47 at substantially equal intervals. A fluid introducing member 16 is attached to the fluid receiving port 21 of the fluid receiving member 5. As shown in FIG. 7, the rotating shaft 7 a of the generator 7 is fixed to one roller 45. The rotating shaft 7 a is supported by the support arm 11 via a bearing 17. The main body 7b of the generator 7 is fixed so as not to rotate by a fixing mechanism (not shown). The belt 47 may be a toothed belt, and the roller 45 may be a toothed pulley provided with teeth that mesh with the toothed belt.

  The arrow shown with a wavy line in FIG. 6 shows the flow of the river. The fluid receiving member 21 is located on the upstream side of the river flow, and the fluid receiving member 5 that is in a receivable state receives a water flow, and the fluid receiving member 5 is swollen. Rotational energy for rotating the belt 47 is generated by the fluid receiving member 5 in the acceptable state receiving the water flow. The fluid receiving member 21 located on the downstream side of the river flow and being in an unacceptable state has a flat shape, and the influence as a resistor that weakens the rotation is almost eliminated.

  When the fluid receiving port 21 of the fluid receiving member 5 having a flat shape is positioned on the upstream side, the water flowing toward the protruding portion 161 is directed into the mouth of the fluid receiving port 21 by the protruding portion 161. That is, water can be guided into the fluid receiving member 5 by the protrusion 161. Moreover, the fluid receiving port 21 can be expanded quickly and reliably. According to this embodiment, since the fluid receiving member 5 that has been in the acceptable state can be quickly and reliably inflated, the power generation efficiency of the fluid power generation apparatus 1 can be increased by efficiently rotating the rotating body 3.

  Moreover, in this embodiment, since the fluid receiving member 5 that is in an acceptable state on the ground side (the lower side in FIG. 6) is provided, the fluid receiving member even when there is little river water and the water surface is low. 5 can receive the water flow and rotate the rotating body 3.

  Next, a third embodiment will be described based on FIG. The embodiment of FIG. 8 is a form in which the hydroelectric generator is installed in the waterfall portion of the river that flows down in the vertical direction.

  FIG. 8 is a side view showing a fluid power generation apparatus according to the third embodiment.

  In the embodiments so far, the rotational energy for rotating the rotating body is mainly obtained by receiving the force of the water flow. On the other hand, this embodiment is different in that rotational energy is obtained mainly by the weight of water flowing into the fluid receiving member 5.

  The rotating body 34 of the fluid power generation device 1 in the present embodiment includes a roller 45, an endless belt 47 wound around the roller 45, and a plurality of fluid receiving members disposed on the surface of the belt 47 at substantially equal intervals. 5. The roller 45 is provided inside the belt 47 and above the belt 47. A fluid introducing member 16 is attached to the fluid receiving port 21 of the fluid receiving member 5. In the acceptable state in which the fluid receiving port 21 is positioned above the fluid receiving member 5, the water of the falling waterfall portion is guided to the fluid introducing member 16 and flows into the fluid receiving member 5, and the fluid receiving member 5. Is inflated. Rotational energy for rotating the belt 47 counterclockwise in FIG. 8 is generated by the weight of the water flowing into the fluid receiving member 5 in the acceptable state. The fluid receiving member 21 is located on the lower side of the fluid receiving member 5, and the fluid receiving member 5, which is in an unacceptable state, is in a flat state, and water flowing down the waterfall portion flows into the fluid receiving member 5. Absent. In the non-acceptable state, the fluid receiving member 5 is located away from the water in the waterfall portion, so that the flow of water does not hinder the rotation of the belt 47. Furthermore, even when the water in the waterfall increases, the fluid receiving member 5 that is in an unacceptable state has a flat shape, so that there is almost no influence as a resistor that weakens the rotation of the rotating body 34.

  The generator 7 is fixed to a pedestal 61 provided above the waterfall. The roller 45 is rotatably held by an arm 62 fixed to the generator 7. A rotation transmission mechanism (not shown) such as a chain for transmitting the rotation of the roller 45 is provided inside the arm 62, and the rotation of the roller 45 is transmitted to the generator 7 through the drive chain. Note that by arranging a large number of fluid receiving members 5 on the belt 47, a rotational force with at least a large amount of water can be obtained.

  Also in this embodiment, the fluid receiving member 5 that is in the acceptable state can be quickly and reliably inflated, and the rotating body 34 can be efficiently rotated to increase the power generation efficiency of the fluid power generation apparatus 1.

  Next, the fourth embodiment will be described based on FIGS. 9 and 10.

  FIG. 9 is a perspective view of the rotating body 36 according to the fourth embodiment viewed from the lower surface (landing surface) side.

  In the present embodiment, a flexible thick opening maintaining member 51 is provided on the edge 50 that defines the fluid receiving port 21 of the fluid receiving member 5. The portion of the fluid receiving member 5 other than the edge portion 50 that defines the fluid receiving port 21 is formed of a flexible material such as a vinyl resin having a thickness of 1 mm, for example. The opening maintaining member 51 is formed of an elastic body (here, silicone rubber) having a thickness of 2 mm or more.

  As shown in FIG. 9, the fluid receiving member 5 on the near side in FIG. 9 is in a receivable state in which the fluid receiving port 21 is located on the upstream side of the water flow and can receive water. In this acceptable state, since the fluid receiving port 21 faces the water flow, water enters from the fluid receiving port 21 and the fluid receiving member 5 expands. The swollen fluid receiving member 5 becomes a resistor against the water flow and generates rotational energy for rotating the rotating body 36.

  The fluid receiving member 5 on the back side in FIG. 9 is in an unacceptable state in which the fluid receiving port 21 is located on the downstream side of the water flow and cannot receive water. In the unacceptable state, the fluid receiving member 5 receives a water flow from the side opposite to the side where the fluid receiving port 21 exists, and the water inside the fluid receiving member 5 is discharged and becomes flat. However, in this embodiment, since the fluid receiving member 5 includes the opening maintaining member 51 even in a state where the fluid cannot be received, the fluid receiving port 21 is not completely closed and a part of the opening is maintained.

  10A is a view showing a state in which the fluid receiving member 5 shown in FIG. 9 is swollen, FIG. 10B is a view taken along arrow A in FIG. 10A, and FIG. 10C is shown in FIG. FIG. 10D is a view showing a state in which the fluid receiving member 5 is flattened, and FIG. 10D is a view as seen from the direction of arrow B in FIG.

  In the acceptable state, since the fluid receiving port 21 faces the water flow, water enters from the fluid receiving port 21 and the fluid receiving member 5 expands as shown in FIG. As shown in FIG. 10B, the opening maintaining member 51 has an arc shape when the fluid receiving member 5 is expanded. Further, the opening maintaining member 51 has an arc shape in which the fluid receiving port 21 is expanded most by a restoring force due to its elasticity even when there is no water flow and no load is applied. As shown in FIG. 10C, the fluid receiving member 5 in the unacceptable state receives a water flow from the side opposite to the side where the fluid receiving port 21 exists. In this unacceptable state, the water inside the fluid receiving member 5 is discharged, and the portion of the fluid receiving member 5 opposite to the fluid receiving port 21 is flat. As shown in FIG. 10 (d), the fluid receiving port 21 in the unacceptable state is deformed to some extent by receiving a water flow, and the fluid receiving port 21 is smaller than that in the receivable state. Due to the elasticity of 51, the body receiving port 21 is not completely closed but maintains some opening. That is, the opening maintaining member 51 maintains the shape in which the fluid receiving port 21 in an unacceptable state is not sealed by its own elasticity. In the present embodiment, the opening maintaining member 51 is provided at the edge portion 50 that defines the fluid receiving port 21. However, if the fluid receiving port 21 is not sealed even in a state where the fluid receiving port 21 cannot be received, The opening maintaining member 51 may be provided at the position. Moreover, you may comprise the opening maintenance member 51 with metal springs.

  In the present embodiment, when the fluid receiving member 5 is in an acceptable state, the water flowing toward the opening maintained by the opening maintaining member 51 immediately flows into the fluid receiving member 5. In addition, since the opening maintaining member 51 expands the fluid receiving port 21 by its own elasticity, the fluid receiving member 5 that has become ready to swell quickly and reliably. Thereby, the rotary body 3 can be rotated efficiently and the power generation efficiency of the fluid power generation device 1 can be increased.

  The fluid power generation apparatus according to the present embodiment includes a rotating body that rotates by a fluid flow, and is provided in the rotating body in the fluid power generation apparatus that converts the rotational energy of the rotating body into electric energy. By rotating, the fluid receiving port is positioned upstream of the fluid flow and the fluid can be received inside, and the fluid receiving port is positioned downstream of the flow and cannot receive the fluid. Two fluid receiving members that change state between an unacceptable state and the rotating body generate rotational energy when fluid flows into the fluid receiving member in the acceptable state. The fluid receiving member is such that when one fluid receiving member is in the receivable state, the other fluid receiving member is in the unreceivable state, and when the fluid receiving member is in the unreceivable state, the fluid receiving port is reduced. , You can derive the invention idea, such as fluid power apparatus characterized in that with an opening maintaining member that prevents this fluid receiving opening is sealed. Further, in this fluid power generation device, the opening maintaining member is formed of an elastic body that is provided at an edge portion that defines the fluid receiving port and has a restoring force that expands the fluid receiving port in a receivable state. It may be a thing.

  Next, a fifth embodiment will be described based on FIG. 11A, FIG. 11B, and FIG. In the fifth embodiment, a description will be given of a water moving tool that moves on water by a propulsive force generated by operating two floating bodies in the front-rear direction.

  Fig.11 (a) is a side view which shows the water moving tool 60 which concerns on this embodiment, FIG.11 (b) is the bottom view which looked at Fig.11 (a) from the lower side. FIG. 12 is a CC cross section of FIG. FIGS. 11A and 11B show a state where the floating body 71 is shifted in the front-rear direction. 11A and 11B, the left side of the figure is the front side of the floating body 71, and the right side of the figure is the back side of the floating body 71. Further, the left direction in FIGS. 11A and 11B may be referred to as a front direction, and the right direction may be referred to as a rear direction.

  The water moving tool 60 according to the present embodiment includes two floating bodies 71 and a fluid receiving member 81 attached to the lower surface (landing surface) of each floating body 71. The floating body 71 is made of a material capable of obtaining buoyancy, such as foamed polystyrene, and is formed in a ship shape in which the lower surface of the front side portion is inclined. The material constituting the floating body 71 is not limited to foamed polystyrene, but may be floating, for example, may be made of resin having a cavity inside. A concave portion 73 having an upper opening is formed in a substantially central portion of the floating body 71 in the front-rear direction. This recessed part 73 is a part which forms the space where the person who uses the water moving tool 60 inserts a foot | leg.

  The fluid receiving member 81 is configured in a pocket shape with a flexible vinyl resin, and has a fluid receiving port 84 at the rear end portion. The upper surface of the fluid receiving member 81 is fixed to the lower surface of the floating body 71 with screws or the like. Fluid receiving member 81 Note that the fluid receiving member 81 may be formed in a complete bag shape, and a part of the bag shape may be attached to the floating body 71. As shown in FIG. 11 (a), in this embodiment, four fluid receiving members 81 are provided on each of the two floating bodies 71, but any number of fluid receiving members 81 may be provided on the floating bodies 71. For example, it may be one by one.

  As shown in FIG. 12, a part of the edge portion 82 (hereinafter, referred to as an opposite edge portion 821) that defines the fluid receiving port 84 of the fluid receiving member 81 is disposed so as to be able to contact with and separate from the floating body 71. ing. The size of the fluid receiving port 84 also changes as the distance between the facing edge 821 and the floating body 71 changes.

  As shown in FIG. 12, the fluid receiving member 81 is provided with a fluid introducing member 85. The fluid introduction member 85 includes a rigid member 83 and a spacing member 87. The rigid member 83 is welded to a portion of the fluid receiving member 81 that faces the floating body 71. The rigid member 83 may be attached to the fluid receiving member 81 with an adhesive or the like. The rigid member 83 is a resin plate-like member that is higher in rigidity than the fluid receiving member 5 and does not deform even when subjected to water resistance, and has a front end portion coupled to the floating body 71 by a hinge 86. Further, the rear end portion of the rigid member 83 extends to the opposite edge portion 821. The rigid member 83 may be a metal or wooden plate member. The rigid member 83 is rotatable around the hinge 86 in a direction toward and away from the floating body 71. Although the hinge 86 is not necessarily provided, the rotation operation of the rigid member 83 can be stabilized by providing the hinge 86.

  On the upper surface of the rigid member 83, an interval holding member 87 for restricting the rotation of the fluid introduction member 85 is provided. When the fluid introduction member 85 rotates in the direction approaching the floating body 71, the spacing member 87 contacts the floating body 71 before the opposing edge 821 contacts the floating body 71, and the rotation stops. Therefore, the fluid receiving port 84 is not completely closed, and the floating body 71 and the facing edge 821 are always kept at a predetermined distance or more. A two-dot chain line in FIG. 12 shows a state in which the rigid member 83 is closest to the floating body side. Note that the interval holding member 87 may be provided anywhere between the fluid receiving member 81 and the floating body 71, for example, may be provided on the facing edge portion 821, or may be provided on the floating body 71. Further, the spacing member 87 and the rigid member 83 may be integrally formed. Further, the rigid member 83 may have a short length in the front-rear direction.

  When the floating body 71 is moved forward, the fluid receiving port 84 of the fluid receiving member 81 is positioned at the end of the fluid receiving member 81 in the counter-movement direction, as shown in the floating body 71 on the left side of FIG. As a result, the fluid becomes unacceptable. This is the same state as the state in which the fluid receiving port is located on the downstream side in the water flow in the first embodiment. Further, when the floating body 71 is moved backward, as shown in the floating body 71 on the right side of FIG. 11A, the fluid receiving port 84 of the fluid receiving member 81 is located at the end of the fluid receiving member 81 in the moving direction. Positioned and ready to receive fluid. This is the same state as the state in which the fluid receiving port is located upstream in the flow of water in the first embodiment.

  In the unacceptable state, water in the fluid receiving member 81 is discharged, and the opposite edge portion 821 approaches the floating body side as shown in FIG. In this state, the fluid receiving member 81 is flat, and the fluid receiving member 81 hardly affects the movement resistance of the floating body 71. However, even in this state, the opposed edge portion 821 is maintained at a predetermined interval from the floating body 71, so that the fluid receiving port 84 is maintained at an opening corresponding to the predetermined interval. When the floating body 71 in which the fluid receiving member 81 is in an unacceptable state is moved backward, the fluid receiving member 81 is in an acceptable state, and water is guided to the upper surface of the fluid introduction member 85 and fluid flows from the fluid receiving port 84. The fluid receiving member 81 expands by flowing into the receiving member 81. The swollen fluid receiving member 81 becomes a large resistor against water. When one of the two floating bodies 71 is moved in the forward direction, the other floating body 71 tries to move backward due to the reaction force of the floating body 71 moved in the forward direction. Since the fluid receiving member 81 is subjected to water resistance, it hardly moves backward. Since the floating body 71 moving in the forward direction hardly receives the resistance of water, it can efficiently advance in the forward direction.

  In this embodiment, since the fluid introduction member 85 is provided, water quickly flows into the fluid receiving member 81 when the receiving state is changed from the unacceptable state. When the fluid introduction member 85 is not present, the closed fluid receiving port 84 is pressed against the floating body 71 by the relative flow of water even if the fluid introducing member 85 is in the acceptable state, and the fluid receiving port 84 remains closed. It may become. In the present embodiment, when the fluid receiving member 81 is in a receivable state, the water flowing toward the opening maintained by the fluid introducing member 85 is guided into the fluid receiving member 81. The water guided to the inside of the fluid receiving member 81 acts as a force for separating the fluid introducing member 85 from the floating body 71 and enlarges the fluid receiving port 84.

According to this embodiment, since the fluid receiving member 81 that has become in a state where it can be received can be quickly and surely inflated, the floating body 71 can be moved forward efficiently.
The water walking implement described above has two floating bodies floating on the water, and in the water moving implement that moves forward on the water by the propulsive force generated by operating the floating bodies in the front-rear direction,
Provided in each of the two floating bodies, and by moving the floating body backward,
It is in a state where it can accept fluid, and the floating body is moved forward to move fluid inside.
A fluid receiving member that is in an unacceptable state.
The floating body obtains a propulsive force when fluid flows into the fluid receiving member in the acceptable state.
And
The fluid receiving member guides fluid into the fluid receiving member when the fluid receiving member is in the acceptable state.
And having a fluid introduction member for enlarging the fluid receiving port.
According to this water-walking device, the fluid receiving port of the fluid receiving member that is ready to receive can be quickly opened.
It can be expanded reliably, and the movement efficiency by a water walk can be increased.
In this water-walking device, the fluid receiving member has an edge portion defining the fluid receiving port.
A part of the floating body is arranged so as to be movable in the direction of contact with and away from the floating body.
The size of the fluid inlet is increased by moving away from the
The fluid introduction member has a protruding portion protruding from the part to the outside of the fluid receiving member.
,
The protruding portion is inclined in a direction in which the part is separated from the floating body toward the protruding end.
It is preferable that
By having the projecting portion, the fluid is received in the fluid receiving port of the fluid receiving member that is in the acceptable state.
It can flow in quickly.
In this water-walking device, the fluid receiving member has an edge portion defining the fluid receiving port.
A part is arranged so as to be movable in the direction of contact with and away from the floating body, and between the part and the floating body
The size of the fluid inlet changes as the gap changes,
The fluid introduction member includes an interval holding member that maintains the interval at a predetermined interval or more, and the part of the fluid introduction member.
It is also preferable to have a rigid member having rigidity higher than the rigidity of the fluid receiving member.
one of.
According to this aspect, since the opening corresponding to the predetermined interval is maintained, the fluid in the acceptable state
The fluid can be quickly flowed into the fluid receiving port of the receiving member.
Further, the spacing member may be integrated with the rigid member.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included. Moreover, even if it is a structural requirement contained only in description of each embodiment and modification which were demonstrated above, you may apply the structural requirement to another embodiment and modification. For example, the fluid introduction member 85 used in the fifth embodiment may be applied to the first to third embodiments, and conversely, the fluid introduction member 16 used in the first to fourth embodiments may be applied to the fifth embodiment. You may apply to a form.

  In the said embodiment, although water was illustrated as a fluid, it can implement similarly in a wind, gas, a vapor | steam, a bubble rising in water, etc.

DESCRIPTION OF SYMBOLS 1 Fluid power generation device 3, 32, 34, 36 Rotating body 5, 81 Fluid receiving member 16, 85 Fluid introduction member 21, 84 Fluid receiving port 60 Water moving tool 71 Floating body

Claims (1)

In a fluid power generation apparatus that has a rotating body that rotates by a fluid flow and converts the rotational energy of the rotating body into electrical energy,
Provided in the rotating body and rotating the rotating body, the fluid receiving port is located on the upstream side of the fluid flow, and the fluid receiving port can receive the fluid therein, and the fluid receiving port on the downstream side of the flow. Two fluid receiving members that change state between an unacceptable state in which the inlet is located and the fluid cannot be received therein;
The rotating body generates rotational energy when fluid flows into the fluid receiving member in the acceptable state,
When the one fluid receiving member is in a receivable state, the other fluid receiving member is in a non-receivable state, and when the fluid receiving member is in the receivable state, the two fluid receiving members are der having a fluid inlet member for internally expanding the direct the fluid fluid receiving port of is,
The fluid receiving member is disposed so that a part of an edge that defines the fluid receiving port is movable in a direction in which the fluid receiving member comes in contact with and separates from the rotating body, and a distance between the part and the rotating body changes. The size of the fluid inlet also changes,
The fluid introducing member includes a spacing member to maintain the distance more than a predetermined distance, the fluid power device, characterized in der Rukoto having a rigid member of higher rigidity than the rigidity of the bag part .

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