JP2009062937A - Electric generating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric generating system for efficiently generating an alternative energy with a low ecological load with a simple mechanism. <P>SOLUTION: The electric generating system 10 includes a plurality of stepping plate members 12 each disposed in each of stepped portions KP of a step, spring members 18 for biasing the stepping plate members 12 upwardly, hinge portions 16 for each rotatably securing an edge portion 12E1 of the stepping plate member 12 on the deeper side, and electric generating devices 28 for each generating electricity by receiving a driving force transmitted due to an up-and-down movement of the stepping plate member 12. The stepping plate members 12 are arrayed in a width direction of the step to form a stepped face 12S on the upper side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a power generation system provided on a staircase.

  In recent years, greenhouse gas (such as carbon dioxide) emission regulations have been strengthened to combat global warming. For this reason, the importance of using alternative energy with a low environmental load is increasing.

  At present, as alternative energy (new energy) having a low environmental load, energy using wind power, solar heat, geothermal power, hydropower, biomass and the like is known. However, energy is generated using a large-scale apparatus.

  A patent for generating this alternative energy using a small device is to install a plate using piezoelectric ceramic on the floor of the stairs and generate power using the weight of the person's weight when going up and down the stairs It is disclosed in Document 1.

However, the use of piezoelectric ceramic has limitations in terms of improving power generation efficiency and reducing equipment costs.
Japanese Patent Laid-Open No. 5-39661

  In view of the above facts, an object of the present invention is to provide a power generation system that efficiently generates alternative energy with a low environmental load with a simple mechanism.

  According to the first aspect of the present invention, there is provided a tread board, a supporting means for supporting the tread board so as to be movable in the vertical direction, a biasing means for returning the tread board moved downward to the original position, and a vertical movement of the tread board. And a power generation means for generating power.

  In the first aspect of the present invention, when a load is applied to the tread, the tread supported by the support means moves downward. When the load is removed or reduced, the tread is returned to the original position by the biasing means. The power generation means generates power by this vertical movement of the tread.

Therefore, it can be set as the electric power generation system which generates efficiently alternative energy with a low environmental load with a simple mechanism.
A spring member or a damper member may be provided as the urging means. Thereby, the tread member can be biased with a simple configuration.

The invention according to claim 2 is characterized in that the tread is composed of a plurality of tread members, and the supporting means, the urging means, and the power generating means are provided for each of the tread members.
Thereby, power generation efficiency can be raised.

The invention according to claim 3 is characterized in that the tread is provided as a member forming a tread surface of a staircase.
In a third aspect of the present invention, when a load is applied to the step board constituting the staircase due to a person's weight or the like, the tread board moves downward, and when the load is removed or reduced, the tread board returns to its original position. The power generation means generates power by this vertical movement of the tread.

The invention according to claim 4 is characterized in that a handrail is provided on the stairs provided with the tread.
Thereby, when a person steps on and goes up and down, it is easy to go up and down.

  The invention according to claim 5 is characterized in that the width of the tread plate member in the step width direction is shorter than the shoe width.

The shoe width refers to a shoe width based on a general human foot size.
In the invention according to claim 5, when a person steps on the tread member, two or more tread members are stepped on simultaneously. At this time, the tread member that is more than the shoe width from the edge of the shoe that has stepped on the tread member is not affected by the shoe that has stepped on the tread member. Therefore, when the other adjacent person steps on the step member, the position of the step member is similarly lowered. Thereby, the effect obtained by the invention of claim 2 can be made more remarkable.

The invention described in claim 6 is characterized in that the step board is provided as a member forming a road surface.
The road surface may be a sidewalk surface or a road surface. When the tread board forms a sidewalk surface, electricity is generated by the power generation means when a person passes along the sidewalk. When the tread board forms the road surface, power is generated by the power generation means when the vehicle passes.

The invention described in claim 7 is characterized in that the step board is arranged at a toll gate on a toll road.
The car stops temporarily at the toll booth. Therefore, it is possible to set the strength of the support means based on the load applied to the treadle when the vehicle is temporarily stopped.

The invention according to claim 8 is characterized by having a power storage device that stores the power generated by the power generation means.
This eliminates the need to immediately use the generated power.

  The invention according to claim 9 is characterized in that the power generation means includes at least two permanent magnets arranged so that the N pole and the S pole face each other, and a rotatable coil arranged between the two permanent magnets. And a rack gear that extends downward from the tread plate, and a speed increasing mechanism that has a pinion gear that meshes with the rack gear and rotates to increase the rotational speed and transmit the rotational force to the coil. Features.

  In the invention according to claim 9, the rack gear moves up and down as the treadle moves up and down, and the pinion gear rotates forward and reverse. The speed increasing mechanism rotates the coil by increasing the number of rotations. When the coil rotates, the coil crosses the magnetic field lines formed by the N pole and the S pole, and electric power is generated.

The invention described in claim 10 is characterized in that power is generated by the power generation means regardless of the downward or upward movement of the tread.
Thereby, electric power generation can be performed more effectively.

  Since the present invention is configured as described above, it is possible to provide a power generation system that efficiently generates alternative energy with a low environmental load with a simple mechanism.

  Hereinafter, embodiments will be described and embodiments of the present invention will be described. In the second and subsequent embodiments, the same components as those already described are denoted by the same reference numerals, and description thereof is omitted.

[First Embodiment]
First, the first embodiment will be described. FIG. 1 is a schematic side view illustrating a power generation system 10 according to the present embodiment. The power generation system 10 according to the present embodiment is a system provided on a staircase K in a building with a lot of traffic such as a station.

  As shown in FIGS. 1 to 3, the power generation system 10 includes a plurality of flat tread members 12. Like the piano keyboard, the tread member 12 is arranged in the step width direction (that is, side by side) on each step portion KP constituting the stair K, and the tread surface 12S is formed on the upper side. The width (width in the staircase width direction) W (see FIG. 3) of the tread board member 12 is shorter than a general person's shoe width B, so that two to three tread board members 12 can be stepped on simultaneously. The width is assumed. In this embodiment, the width W of the tread member 12 is about 10 to 20 cm.

  On the near side and the depth side of the tread member 12 viewed from the direction of ascending the stairs, the vertical wall portions 14 are positioned along the substantially vertical direction. Therefore, when viewed from the ascending side of the stairs, the tread surface 12S and the vertical surface 14V by the vertical wall portion 14 are alternately positioned.

  In addition, the power generation system 10 includes a hinge portion 16 that rotatably supports the edge portion 12E1 on the depth side of the tread member 12 as viewed from the direction of ascending the stairs, and an upper end attached to the lower surface side of the tread member 12 And a spring member 18 that biases the spring. The hinge portion 16 and the spring member 18 are provided for each tread board. With this configuration, when a load due to a person's weight or the like is not applied from the tread 12S, the position of the tread member 12 is the upper end position as shown in FIG. 1, and when a load is applied from the tread 12S, As shown in FIG. 2, the position of the tread member 12 is the lower end position. The spring constant of the spring member 18 is determined in consideration of a moment necessary for rotating the rack gear side pinion gear 24 described later so that a person can smoothly ascend and descend when stepping on the tread member 12. Has been. The lower end position of the tread member 12 is determined by the upper edge position of the vertical wall portion 14. Further, the power generation system 10 is provided with upper end position restricting means (not shown) such as a stopper for restricting the upper end position of the tread board member 12.

  Further, as shown in FIGS. 1, 2, and 4, the power generation system 10 includes an arc-shaped rack gear 22 that extends downward from the lower surface side of each tread member 12, and a rack gear side pinion gear that meshes with the rack gear 22. 24 are provided. The rack gear side pinion gear 24 includes a small-diameter gear portion 24S that meshes with the rack gear 22 and a large-diameter gear portion 24B that is integrally continuous with the small-diameter gear portion 24S.

  The power generation system 10 is provided with a power generation device 28. The power generator 28 is provided with a first rotating shaft 30 that penetrates the housing 29. An end gear 30G is formed at the end of the first rotating shaft 30, and this end gear 30G meshes with the large-diameter gear portion 24B.

  As shown in FIG. 5, in the power generation device 28, two permanent magnets 32 arranged so that the south pole and the north pole face each other, and a coil rotatably arranged between the two permanent magnets 32. 33 is provided.

Further, in the power generation device 28, as shown in FIG. 6, a first rotation shaft pinion gear 34 attached to the first rotation shaft 30 (see FIG. 4) and an intermediate gear meshing with the first rotation shaft pinion gear 34 are provided. (Play gear) 35, a gear 36 with a one-way clutch meshing with the intermediate gear 35, and a second rotating shaft 38 held by the gear 36 with a one-way clutch.
The coil 33 is formed with a coil end 33E (see FIG. 5) extending linearly. The second rotating shaft 38 is fixed to the coil end portion 33E so as to be coaxial with the coil end portion 33E. The second rotating shaft 38 is rotatably held by the one-way clutch-equipped gear 36. As shown in FIG. 6, the rotational force is transmitted only when the one-way clutch-equipped gear 36 rotates in the forward rotation direction R1. When the one-way clutch gear 36 rotates in the R1 direction and rotates in the reverse direction R2, no rotational force is transmitted to the second rotating shaft 38.
With this gear configuration, when the rack gear 22 moves up and down, the rotational speed is increased, the second rotating shaft 38 rotates, and power is generated by the power generator 28.

  Further, a cover plate 40 extending downward from the lower surface side of the tread member 12 is provided at the edge 12E2 on the near side of the tread member 12 when viewed from the ascending side. The rack gear 22 and the power generation device 28 are located inside the cover plate 40. With this configuration, for example, as shown in FIG. 1, even when the tread member 12 is not positioned at the lower end position, when a person climbs the stairs K, a toe is provided between the vertical wall portion 14 and the tread member 12. Intrusion is avoided.

  In addition, the power generation system 10 is provided with a storage battery 41 that stores the power generated by each power generation device 28.

(Function, effect)
Hereinafter, the operation and effect of the present embodiment will be described. When no load is applied from the tread 12S, the position of the tread member 12 is the upper end position as shown in FIG. In this state, the cover plate 40 blocks the tread plate member 12 and the vertical wall portion 14.

  When a load due to a person's weight or the like is applied to the tread 12S, as shown in FIGS. 2 and 3, the tread board member 12 is pressed by the shoe P worn by the person and moved downward, and the upper edge of the vertical wall portion 14 is moved. The movement is stopped at the lower end position by the portion 14U. At this time, since the rack gear 22 moves downward, the rack gear 22 rotates the rack gear side pinion gear 24 in the normal rotation direction R1, and the rotational force is transmitted from the large-diameter gear portion 24B to the end gear 30G, so that the first rotating shaft. 30 rotates in the forward rotation direction R1. At that time, the difference in the number of teeth between the rack gear 22 and the large diameter gear portion 24B, the difference in the number of teeth between the small diameter gear portion 24S and the large diameter gear portion 24B, and the large diameter gear portion 24B and the end gear 30G The rotation speed increases due to the difference in the number ratio of teeth.

  Further, as the first rotation shaft 30 rotates forward, as shown in FIG. 6, the first rotation shaft pinion gear 34 rotates in the forward rotation direction R1, and the intermediate gear 35 and the one-way clutch gear 36 move in the forward rotation direction R1. Rotate. At that time, the rotational speed is also increased by the difference in the gear ratio between the end gear 30G and the first rotation shaft pinion gear 34.

  When the shoe P moves upward from the tread 12S, that is, when the load is removed from the tread 12S, as shown in FIG. 1, the tread plate member 12 is pressed upward by the spring member 18 and moved upward, and the upper end position restricting means ( The movement stops at the upper end position. At this time, since the rack gear 22 moves upward, the rack gear 22 rotates (reverses) the rack gear side pinion gear 24. Here, since the second rotary shaft 38 is held by the gear 36 with the one-way clutch, even if the gear 36 with the one-way clutch is reversed, the second rotary shaft 38 has rotational energy in the forward rotation direction R1 remaining. As long as it continues, it continues to run forward and power is generated.

  As described above, in the present embodiment, when the stairs K are moved up and down, the position of the tread member 12 is lowered when a load is applied to the tread 12S by the weight of the person, and when the load is removed, the tread member 12 is moved. The position goes up. At this time, in the power generation device 28, the rack gear 22 rotates the rack gear side pinion gear 24 by the vertical movement of the tread member 12, and the power generation device 28 generates power. The generated electric power is stored in the storage battery 41 and used as electric power for illuminating a light bulb, a bulletin board, etc., and an energy saving effect is obtained. Therefore, with the power generation system 10 having a simple mechanism, it is possible to efficiently generate power by using the movement of human social activities as an energy source. Further, when the shoe P moves away from the tread 12S when going up the stairs K, the tread 12S is moved upward by the spring member 18. Therefore, when a person with weak leg strength such as an elderly person ascends the stairs K, an effect of acting as an assist mechanism can be obtained.

  In addition, the width W of the tread member 12 is shorter than a general person's shoe width B, and is a width that allows two or three tread members 12 to be stepped on simultaneously. Accordingly, when another person who is adjacent steps on the tread member 12, the position of the tread member 12 is similarly lowered. As a result, it is possible to avoid the influence on the stepping comfort of other people who are adjacent to each other and to increase the power generation efficiency.

  1 and 2, the spring member 18 is illustrated as a coil spring, but in the present invention, a spring member other than a coil spring such as a leaf spring may be used.

  Further, as shown in FIG. 7, instead of the rack gear side pinion gear 24, a small-diameter gear 43 with a one-way clutch having a spiral spring (spring spring) 42 inside, and a small-diameter gear 43 with a one-way clutch are held in the spiral spring 42. A large-diameter gear 44 that is biased in the rolling direction R1 may be provided. As a result, when the rack gear 22 moves downward, energy is stored in the spiral spring 42 and the spiral spring 42 returns to its original state, so that power can be generated efficiently.

  In the above description, as shown in FIG. 3, the width W of the tread member 12 is set to such a width that two to three tread members 12 can be stepped on by ordinary human shoes P. The dimensions of the tread are not particularly limited. For example, as shown in FIG. 8, you may provide the tread 38 of the width | variety comparable as the width | variety of the shoes of a general person.

  In the above description, the driving force for power generation is transmitted to the power generator 28 when the tread member 12 moves downward. However, when the tread member 12 moves upward, the driving force is It is good also as a structure transmitted to the electric power generating apparatus 28. FIG.

  In the above description, the example in which one power generation device 28 is provided in each step portion KP has been described. However, a plurality of power generation devices 28 may be provided in each step portion KP. In this case, if the number of the rack gears 22 and the rack gear side pinion gears 24 is increased in accordance with the number of the power generation devices 28, the driving force can be reliably transmitted to each power generation device 28.

[Second Embodiment]
Next, a second embodiment will be described. As shown in FIGS. 9 and 10, in the power generation system 46 according to the present embodiment, a damper member 48 is provided instead of the spring member 18 as compared with the first embodiment. The material of the damper member 48 is not particularly limited as long as there is no problem from the viewpoint of durability.

  According to the second embodiment, similar to the first embodiment, the tread board member 12 can be urged with a simple configuration.

[Third Embodiment]
Next, a third embodiment will be described. As shown in FIGS. 11 and 12, in the power generation system 50 according to the present embodiment, the arrangement position of the hinge portion 16 is different from that in the first embodiment. That is, the hinge portion 16 supports the edge portion 12E2 on the near side of the tread member 12 as viewed from the direction of ascending the stairs. Therefore, when the tread member 12 moves up and down, the edge 12E1 on the depth side moves up and down as viewed from the direction of rising stairs. In accordance with this, the arrangement positions of the rack gear 22 and the power generation device 28 are changed.

  In 3rd Embodiment, it is not necessary to provide the cover board 40 (refer FIG. 1, FIG. 2) like 1st Embodiment. Therefore, the number of parts can be reduced, and the moment of inertia when the tread member 12 moves up and down can be reduced.

[Fourth Embodiment]
Next, a fourth embodiment will be described. As shown in FIG. 13, the power generation system 60 according to the present embodiment is a power generation system that can be installed on a conventional staircase J.
The power generation system 60 is thinner than the third embodiment so that it can be installed on the tread JS of the stairs J. That is, this power generation system 60 is similar to the bottom plate 64 placed and fixed on the tread surface JS, the side plate 66 standing from the peripheral edge of the bottom plate 64, the tread plate 62 similar to the tread plate 12, and the spring member 18. The spring member 68 is provided. As for the tread board 62, the edge 62E2 on the near side as viewed from the direction of ascending the stairs is fixed to the side plate 66 by the hinge part 16. With this configuration, when the tread 62 moves up and down, the edge 62E1 on the depth side moves up and down when viewed from the direction of ascending the stairs.

  In the space Z formed by the bottom plate 64, the side plate 66, and the tread plate 62, the arm 70 is rotatably attached to the lower surface side of the tread plate 62, and is attached to the tip portion of the arm 70 so as to be rotatable. A rack gear 72 that is slidable along the upper surface of 64, and a rack gear side pinion gear 74 that meshes with the rack gear 72 are provided. The rack gear side pinion gear 74 includes a small-diameter gear portion 74S that meshes with the rack gear 72 and a large-diameter gear portion 74B that is integrally continuous with the small-diameter gear portion 74S.

  The power generation system 60 is provided with a power generation device 79. The basic configuration principle of the power generation device 79 is the same as that of the power generation device 28, and an end gear 30G that meshes with the large-diameter gear portion 74B is formed at the end of the first rotating shaft that passes through the housing.

  In the present embodiment, the height from the bottom plate 64 of the power generation device 79 and the rack gear side pinion gear 74 is greatly reduced compared to the first to third embodiments so that the height of the space Z is reduced. . Therefore, according to the present embodiment, a power generation system 60 that can be installed on the conventional staircase J can be obtained.

[Fifth Embodiment]
Next, a fifth embodiment will be described. As shown in FIG. 14, in the power generation system according to the present embodiment, a small-diameter gear 86 is provided instead of the one-way clutch-equipped gear 36 (see FIG. 6) as compared with the first embodiment. The small diameter gear 86 holds the second rotation shaft 38.
In the present embodiment, the second rotating shaft 38 is rotated forward and reverse by the normal rotation and reversal of the small-diameter gear 86. Accordingly, the power generation device 28 can generate power when the tread member 12 moves downward or upward.

[Sixth Embodiment]
Next, a sixth embodiment will be described. As shown in FIG. 15, in the power generation system 80 according to the present embodiment, a tread 92 is provided so as to form a sidewalk surface MS by a bridge, a sidewalk, or the like. In the present embodiment, at least four corners of the tread plate 92 are urged upward by a spring member 68 standing from the bottom plate 94. With this configuration, the tread 92 moves in a state where the tread surface 92S of the tread 92 is parallel to the sidewalk surface MS when moving in the vertical direction.

  Also, below the tread plate 92, as in the fourth embodiment, an arm 70, a rack gear 72, a rack gear side pinion gear 74, and a power generation device 79 are provided.

  According to this embodiment, a power generation system 80 that forms a flat surface such as the sidewalk surface MS and efficiently generates power can be obtained. In addition, it can also be set as the form which comprised not the sidewalk surface MS but the road surface.

[Seventh Embodiment]
Next, a seventh embodiment will be described. As shown in FIG. 16, the power generation system 100 according to the present embodiment includes a bottom plate 104 installed on the road surface NS, and right-angled triangles provided on both ends in the longitudinal direction of the bottom plate 104 to form slopes 106S. The slope members 106A and 106B having a shape and an intermediate member 108 that forms a road surface between the slope members 106A and 106B are provided. The slope members 106A and 106B are disposed so as to be located at both ends of the roadway in the direction of traffic.

  The intermediate member 108 includes two identically shaped treads 110A and 110B arranged along the roadway traveling direction. The footboards 110A and 110B are attached to a hinge portion 112 provided at the center in the passage direction of the roadway so as to be rotatable relative to each other. Further, both ends of the tread plates 110A and 110B in the passage direction are supported by the link mechanisms 114A and 114B. With this configuration, the hinge portion 112 can move up and down, that is, the treads 110A and 110B can move up and down.

  A spring member 118 is provided below the intermediate member 108. The spring constant and the number of the spring members 118 are set in accordance with the weight of the passing vehicle. Further, similarly to the fourth and sixth embodiments, an arm 120, a rack gear 122, a rack gear side pinion gear 124, and a power generator 129 are disposed below the intermediate member 108. Further, a support member 136 that supports the treads 110A and 110B from below when the intermediate member 108 moves downward due to a load from the vehicle (see FIG. 16B) is disposed below the intermediate member 108.

  The power generation system 100 according to the present embodiment is a power generation system installed at a toll gate on a toll road, for example. Accordingly, the strength, dimensions, etc. can be set in consideration of the state where the vehicle is temporarily stopped.

  The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to these embodiments.

It is a typical side view explaining the power generation system concerning a 1st embodiment (state where a load is not applied). It is a typical side view explaining the power generation system concerning a 1st embodiment (state where a load was applied). FIG. 3 is a schematic perspective view showing that a load is applied to the tread board and the tread board moves downward in the first embodiment. It is a top view which shows the mechanism in which motive power is transmitted from the rack gear to the electric power generating apparatus with the electric power generation system which concerns on 1st Embodiment. It is a typical perspective view which shows the principle produced | generated within the electric power generating apparatus of the electric power generation system which concerns on 1st Embodiment. It is explanatory drawing which shows the mechanism in which motive power is transmitted to the 2nd rotating shaft holding the coil within the electric power generating apparatus of the electric power generation system which concerns on 1st Embodiment. It is a partial side view which shows the modification of the electric power generation system which concerns on 1st Embodiment. It is a typical perspective view which shows the modification of the electric power generation system which concerns on 1st Embodiment. It is a typical side view explaining the power generation system concerning a 2nd embodiment (state where a load is not applied). It is a typical side view explaining the power generation system concerning a 2nd embodiment (state where a load was applied). It is a typical side view explaining the power generation system concerning a 3rd embodiment (state where a load is not applied). It is a typical side view explaining the power generation system concerning a 3rd embodiment (state where a load was applied). FIGS. 13A and 13B are side views illustrating a state in which no load is applied and a state in which a load is applied, respectively, in the power generation system according to the fourth embodiment. It is explanatory drawing which shows the mechanism in which motive power is transmitted to the 2nd rotating shaft holding the coil within the electric power generating apparatus of the electric power generation system which concerns on 5th Embodiment. FIGS. 15A and 15B are side views illustrating a state where no load is applied and a state where a load is applied, respectively, in the power generation system according to the sixth embodiment. FIGS. 16A and 16B are side views illustrating a state in which no load is applied and a state in which a load is applied in the power generation system according to the seventh embodiment, respectively.

Explanation of symbols

10 power generation system 12 tread member (tread, tread member)
12 Tread 16 Hinge (support means)
18 Spring member (biasing means)
22 rack gear 24 rack gear side pinion gear (pinion gear)
24B Large-diameter gear (speed increasing mechanism)
24S Small-diameter gear (speed increasing mechanism)
28 Power generation device (power generation means)
32 Permanent magnet 33 Coil 34 First rotating shaft pinion gear (speed increasing mechanism)
41 Storage battery (power storage device)
46 Power generation system 48 Damper member (biasing means)
50 Power generation system 60 Power generation system 68 Spring member 72 Rack gear 74 Rack gear side pinion gear 74S Small diameter gear portion (speed increasing mechanism)
74B Large-diameter gear (speed increasing mechanism)
79 Power generation device 80 Power generation system 92 Tread plate 100 Power generation system 110A, B Tread plate 112 Hinge part (support means)
114A, B Link mechanism (support means)
118 Spring member 122 Rack gear 124 Rack gear side pinion gear (pinion gear)
129 Power generation device (power generation means)
136 Support member (support means)
B Shoe width K Stairs MS Sidewalk (road surface)
NS Road surface (road surface)
W width

Claims (10)

Treads,
A support means for supporting the treadle so as to be movable in the vertical direction;
Urging means for returning the tread board moved downward to its original position;
Power generating means for generating power by moving the tread plate up and down;
A power generation system comprising: The tread is composed of a plurality of tread members,
The power generation system according to claim 1, wherein the support means, the urging means, and the power generation means are provided for each of the tread members.   The power generation system according to claim 1, wherein the tread plate is provided as a member that forms a tread surface of a staircase.   The power generation system according to claim 3, wherein a handrail is provided on the stairs provided with the tread.   The power generation system according to claim 4, wherein a width of the tread board member in a step width direction is shorter than a shoe width.   The power generation system according to claim 1, wherein the tread is provided as a member that forms a road surface.   The power generation system according to claim 6, wherein the tread is disposed at a toll gate on a toll road.   The power generation system according to any one of claims 1 to 7, further comprising a power storage device that stores electric power generated by the power generation means. The power generation means includes at least two permanent magnets arranged so that the north and south poles face each other;
A rotatable coil disposed between the two permanent magnets;
A rack gear extending downward from the tread;
A speed increasing mechanism that has a pinion gear that meshes with the rack gear and rotates the speed to transmit the rotational force to the coil;
The power generation system according to any one of claims 1 to 8, wherein the power generation system is provided.   The power generation system according to any one of claims 1 to 9, wherein the power generation unit generates power regardless of whether the treadle is moved downward or upward.

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