JPH0711037Y2 - Human power promotion boat - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a human-powered propulsion boat in which a screw is rotated by human power to obtain propulsion.

[0002]

2. Description of the Related Art Conventionally, a pedal type boat is known as a boat that rotates on a screw and moves on the water surface by human power. In this pedal-type human power propulsion boat, a pedal similar to a pedal of a bicycle is provided in a seat portion of the boat, and a pedal shaft is rotated by an occupant rowing the pedal. The rotation of the pedal shaft is transmitted to the shaft of the screw mounted on the lower surface of the rear portion of the boat by the gear, and the screw rotates to generate the propulsive force. Such a pedal-type human-powered boat is easier to operate than an oar-type human-powered boat, and unlike the oar that is rowed by hand, the pedals are rotated by the foot, so it is possible to row with greater power. There is.

[0003]

However, in this pedal-type human power propulsion boat, since the pedal is rotated 360 degrees about the pedal shaft, a dead point occurs at a point farthest from the occupant. A large force is required to pass this dead point, and it becomes difficult to rotate the pedal smoothly. Furthermore, since the length of the pedal arm cannot be made too long for pedaling with the foot, the force of the foot cannot be mechanically converted into propulsion force. For this reason, there is a problem that the foot becomes tired in a short time. Therefore, in the present invention, it is possible to provide a human-powered boat that eliminates the need to pass a dead point and lengthens the length of the arm so that the occupant does not easily get tired and can easily row with a small force. To aim.

[0004]

In order to solve the above problems, the human-powered boat of the present invention is constructed as follows. That is, a boat that obtains propulsion force by rotating an outboard propulsion device such as a screw by human power, wherein the boat is rotatably supported at an intermediate portion of the boat, and an input arm that is reciprocally rotated by human power and the input A reciprocating rotary gear that reciprocally rotates by reciprocating rotation of the arm, and a first gear and a second gear that are arranged so as to rotate in mesh with each other on respective axes parallel to the rotational axis of the reciprocating rotary gear. A first ratchet mechanism for transmitting a rotational force of the reciprocating rotary gear in one direction to the first gear, and a second ratchet for transmitting a rotational force of the reciprocating rotary gear in the other direction to the second gear A mechanism and an output shaft that is connected to rotate by receiving the rotational force of either the first gear or the second gear and has the outboard propulsion device fixed to the shaft thereof.

[0005]

In the manpower-propelled boat of the present invention having the above-mentioned structure, the motive force by manpower is transmitted as follows to move the boat forward and backward. First, the input arm is reciprocally rotated by human power, and thereby the reciprocating rotation gear is also reciprocally rotated. During this reciprocating rotation, when the reciprocating rotating gear rotates in one direction, the rotational force of the reciprocating rotating gear is transmitted to the first gear by the first ratchet mechanism, and the reciprocating rotating gear rotates in the other direction. When moving, it is transmitted to the second gear by the second ratchet mechanism. Here, since the first gear and the second gear are meshed with each other, when one rotates, the other rotates in the opposite direction. In this way, the reciprocating rotation of the reciprocating rotation gear causes the first gear to continuously rotate in one direction and the second gear to continuously rotate in the other direction.

The rotational force of either the first gear or the second gear is transmitted to the output shaft, and the output shaft continuously rotates in the same direction. This allows the outboard propulsion device such as the screw to rotate continuously to propel the boat. Thus, by rotating the input arm in a reciprocating manner instead of rotating like a pedal, the outboard propulsion device such as a screw can be continuously rotated in the same direction to propel the boat. Therefore, it is not necessary to pass through the dead point as in the rotational movement of the pedal, and the length of the input arm can be made sufficiently long. Further, since the rotation force in one direction is taken out by both the reciprocating rotation, the human power is effectively converted into the propulsion force. With the above action, the boat can be easily propelled with a small force.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment embodying the present invention will be described with reference to FIGS. 1 and 2 are views showing a main part of an embodiment of the human power propulsion boat according to the present invention, and FIG. 3 is a view showing an operating portion of the human power propulsion boat. First, with reference to FIG. 3, the overall configuration of the human power propulsion boat 2 of the present embodiment will be described. FIG. 3A is a view of the operating portion of the human-powered boat 2 as seen from the left side of the boat.
FIG. 3B is a view seen from the seat of the human-powered boat 2 toward the front end. In FIG. 3B, reference numeral 6 is a main body of the human power propulsion boat 2, a support base 8 is fixed on the boat main body 6, and the gearbox 1 is mounted on the support base 8.
0 is fixed. As will be described below, the gear box 10 accommodates a gear mechanism that transmits a propulsive force by human power. From the gearbox 10, FIG.
As shown in (B), a pair of left and right handle shafts 16 and 26 are exposed to the outside. A pair of left and right handle pedal arms 12 and 2 are connected to the handle shafts 16 and 26 via connecting members 14 and 24, respectively.
2 is fixed.

The handle pedal arms 12 and 22 are
It is a long arm that extends up and down about the handle shafts 16 and 26 by substantially the same length. The handle portions 12A and 22A are fixed to the upper ends of the handle pedal arms 12 and 22, respectively, and the pedal portions 12B and 22B are fixed to the lower ends thereof. In order to row the human power propulsion boat 2, an occupant seated in a seat (not shown) holds the left handle portion 12A with his left hand, puts his left foot on the left pedal portion 12B, and uses his right hand to handle the right handle portion 22.
Hold A and put your right foot on the right pedal section 22B. Then, while pulling the handle portions 12A and 22A with the hands, the pedal portions 12B and 22B are pushed with the feet, and the handle portion 1 is pushed with the hands.
While pressing 2A and 22A, use your foot to pedal 12B and 22B.
Repeat the action of pulling. In this way, the left and right handle pedal arms 12 and 22 are alternately reciprocally rotated to propel the human-powered boat 2 by a mechanism described later.

Next, a gear mechanism housed in the gear box 10 for transmitting a propulsive force by human power will be described with reference to FIGS. 1 and 2. In the following explanation, the rotation direction (clockwise, counterclockwise) is
From the left side of FIGS. 1 and 3B (that is, FIG. 3A)
2), or the direction of rotation when viewed from below in FIGS. 1 and 2B. As shown in FIG. 1, the inner tip of each of the handle shafts 16 and 26 rotatably attached to the gear box 10 is
A pair of left and right bevel gears 18 and 28 are fixed. The bevel gears 18 and 28 both mesh with the reciprocating rotary bevel gear 20. This reciprocating bevel gear 2
0 is fixed to the tip of the reciprocating rotary shaft 30,
The reciprocating rotary shaft 30 is rotatably attached to the gear box 10.

A reciprocating rotating gear 40 is fixed to the other end (lower end in FIG. 1) of the reciprocating rotating shaft 30. The reciprocating rotary gear 40 is located outside (downward) of the gear box 10 and supports the support base 8 shown in FIG.
It is stored inside. The same applies to other gear mechanisms described below. As shown in FIG. 1, the reciprocating rotary gear 40 includes a pair of left and right pinion gears 3 with a ratchet.
4 and 44 are in mesh. The ratchet pinion gears 34 and 44 are fixed to the pair of left and right shafts 38 and 58, respectively. Both ends of these shafts 38 and 58 are rotatably supported by the gear box 10 and a support plate 64 shown at the bottom of FIG. The support plate 64 is fixed to the inner wall of the support base 8 shown in FIG.

The pinion gears 34, 4 with the ratchet
Ratchet teeth 34a and 44a are provided on the lower surface of No. 4, and a pair of left and right output transmission gears 36 and 4 with ratchets are provided below the ratchet pinion gears 34 and 44.
6 are arranged. Ratchet teeth 36a, 46a are provided on the upper surfaces of the output transmission gears 36, 46 with ratchets.
Is provided and meshed with the ratchet teeth 34a, 44a. These output transmission gears with ratchet 3
Reference numerals 6 and 46 are fixed to the shafts 38 and 58, respectively, and rotate integrally with the shafts 38 and 58. The ratchet pinion gears 34, 44 are respectively attached to the ratchet output transmission gears 36, 46 by the push-in springs 32, 42 fitted between the ratchet pinion gears 34, 44 and the gear box 10. Being pressed against.

An output transmission gear 60 is fixed below the left shaft 38, while a right shaft 58 is provided.
An output transmission gear 48 is fixed to. An output shaft 66 is arranged at an intermediate position between the left and right shafts 38 and 58 and is rotatably attached to the support plate 64. The output receiving gears 50, 62 and 52, 54 with ratchets are rotatably inserted in the output shaft 66. The ratchet-equipped output receiving gear 50 is rotatably inserted in the output shaft 66 and meshed with the output transmission gear 48. Similarly, the ratchet-equipped output receiving gear 62 is also rotatably inserted in the output shaft 66 and meshed with the output transmission gear 60.

The lateral arrangement of the above gears is shown in FIG.
This will be described with reference to (A). FIG. 2A is a schematic diagram of FIG.
It is a figure which shows arrangement | positioning of each gear seen from the lower part of (B). In addition, in the figure, the black-painted portions indicate the meshing of the gears. As shown in FIG. 2 (A),
The reciprocating rotary bevel gear 20 and the reciprocating rotary gear 40
Is concentrically fixed to the reciprocating rotary shaft 30,
The reciprocating rotary gear 40 includes a pinion gear 3 with a ratchet.
4 is meshed. An output transmission gear 36 with a ratchet is fixed to the upper side and an output transmission gear 60 to the lower side is fixed to a left shaft 38 to which the pinion gear 34 with the ratchet is rotatably fitted (in the drawing, the output transmission gear 36 with the ratchet, the output). The transmission gear 60 overlaps).

Similarly, a pinion gear 44 with a ratchet is also meshed with the reciprocating rotary gear 40, and a right shaft 58 on which the pinion gear 44 with a ratchet is rotatably fitted.
An output transmission gear 46 with a ratchet and an output transmission gear 48 are fixed to the. Further, the ratchet output transmission gear 36 and the ratchet output transmission gear 46 are meshed with each other. The output transmission gear 60 is in mesh with the output reception gear 62 with ratchet, and the output transmission gear 48 is in mesh with the output reception gear 50 with ratchet. The ratchet output receiving gear 50 and the ratchet output receiving gear 62 are provided with the output shaft 66 together with the one-way clutch built-in ratchets 52 and 54.
Mounted concentrically to.

As shown in FIG. 2B, the one-way clutch built-in ratchet 52 has a built-in one-way clutch that locks the output shaft 66 and rotates it clockwise. Then, the output receiving gear 50 with a ratchet and the ratchet 52 with a built-in one-way clutch are coupled to each other, so that the output shaft 6 is integrated with them.
6 rotates clockwise. Similarly, the one-way clutch built-in ratchet 54 has a built-in one-way clutch that locks the output shaft 66 and rotates it counterclockwise. And the output receiving gear with ratchet 6
By coupling 2 and the ratchet 54 with a built-in one-way clutch, the output shaft 66 rotates counterclockwise. Further, a flywheel 68 is fixed in the middle of the output shaft 66. The flywheel 68 is a flywheel for rotating the output shaft 66 by inertia. A screw 70 as an outboard propulsion device is fixed to the tip of the output shaft 66.

Further, the side faces of the ratchets 52, 54 with built-in one-way clutches are fitted to the ratchets 52, 54 with built-in one-way clutches to provide a forward / reverse switching member 56.
Is provided so as to be slidable in the vertical direction. The forward / reverse switching member 56 can be slid from the outside by a transmission mechanism (not shown). This forward / reverse switching member 5
By sliding 6 up and down, it is possible to select which one of the ratchets 52 and 54 with a built-in one-way clutch is connected to the output receiving gears 50 and 62 with a ratchet. When the forward / reverse switching member 56 is slid upward, the one-way clutch built-in ratchet 52 is connected to the ratchet-equipped output receiving gear 50, and the output shaft 66 rotates in the clockwise direction. On the other hand, when the forward / reverse switching member 56 is slid downward, the one-way clutch built-in ratchet 54 is coupled to the ratchet-equipped output receiving gear 62 and the output shaft 66 can be rotated counterclockwise. In this way, by operating the forward / reverse switching member 56, the output shaft 6
The forward rotation and the reverse rotation of 6 can be switched.

Now, a method of operating the human power propulsion boat 2 having the above structure and a mechanism for propelling the human power propulsion boat 2 will be described with reference to FIGS. A seat (not shown) (see FIG.
(A) is on the right side, and in FIG. 3 (B) is on the front side)
An occupant seated in the vehicle grips the left handle portion 12A shown in FIG. 3 with his left hand and puts his left foot on the left pedal portion 12B,
Further, the right handle portion 22A is gripped with the right hand and the right foot is placed on the right pedal portion 22B. Then, the handle portion 12 by hand
While pulling A, 22A, use your foot to pedal 12B, 22
The operation of pushing B and pulling the pedal portions 12B and 22B with the foot while pushing the handle portions 12A and 22A with the hand is repeated. In this way, the pair of left and right handle pedal arms 12 and 22 are alternately reciprocally rotated to propel the human-powered boat 2 as follows.

First, when the handle portion 12A of the left handle pedal arm 12 is rotated toward the front and the pedal portion 12B is rotated toward the front, the left handle pedal arm 12 rotates in the clockwise direction when viewed from the left in FIG. As a result, the left bevel gear 18, which is fixed to the left handle pedal arm 12 via the left connecting member 14 and the left handle shaft 16, also rotates in the clockwise direction. As a result, the reciprocating rotary bevel gear 20 that meshes with the left bevel gear 18 rotates counterclockwise as viewed from below in FIG. 1. As a result, the right bevel gear 28 that meshes with the reciprocating rotary bevel gear 20 rotates counterclockwise, and the right handle pedal arm fixed to the right bevel gear 28 via the right handle shaft 26 and the right connecting member 24. 22 also rotates counterclockwise. That is, the right handle pedal arm 22 has the handle portion 22.
In the direction in which A moves forward and the pedal portion 22B moves forward,
It rotates automatically.

On the other hand, when the handle portion 22A of the right handle pedal arm 22 is turned to the front and the pedal portion 22B is turned to the front, the right handle pedal arm 22 turns clockwise when viewed from the left in FIG. As a result, the right bevel gear 28 also rotates clockwise, and the reciprocating bevel gear 2 is rotated.
0 rotates counterclockwise when viewed from below in FIG. As a result, the left bevel gear 18 rotates counterclockwise,
The left handle pedal arm 12 also rotates counterclockwise. That is, the left handle pedal arm 12 automatically rotates in the direction in which the handle portion 12A moves forward and the pedal portion 12B moves forward. In this way, by repeatedly pulling the handle portions 12A and 22A with both hands and alternately pushing the pedal portions 12B and 22B with both feet, the reciprocating bevel gear 20 is rotated clockwise and counterclockwise. Rotate back and forth.

As the reciprocating bevel gear 20 reciprocally rotates in this manner, the rotational force is transmitted by the gear mechanism in the gear box 10 as follows. First, when the reciprocating rotary bevel gear 20 rotates in the clockwise direction, the reciprocating rotating gear 40 fixed by the reciprocating rotary shaft 30 also integrally rotates in the clockwise direction. As a result, the ratchet pinion gear 34 and the ratchet pinion gear 4 that mesh with the reciprocating rotary gear 40.
4 rotates counterclockwise. The ratchet output transmission gear 36, which is connected by the ratchet pinion gear 34 and the ratchets 34a and 36a, rotates idly because the ratchets 34a and 36a rotate in the sliding directions. On the other hand, the ratchet pinion gear 44 and the ratchet output transmission gear 46 connected by the ratchets 44a and 46a rotate counterclockwise because the ratchets 44a and 46a rotate in the direction in which they mesh with each other. At this time, the ratchet output transmission gear 36 that meshes with the ratchet output transmission gear 46 also rotates clockwise, but the ratchet does not mesh with the ratchet pinion gear 34 that rotates counterclockwise because the ratchet slides.

On the other hand, when the reciprocating bevel gear 20 rotates counterclockwise, both the ratchet pinion gear 34 and the ratchet pinion gear 44 with which the reciprocating rotating gear 40 meshes rotate clockwise. In this case, since the ratchet pinion gear 34 and the ratchets 34a, 36a of the ratchet output transmission gear 36 mesh with each other, the ratchet output transmission gear 36 rotates in the clockwise direction. On the other hand, pinion gear 44 with ratchet
And ratchet output transmission gear 46 is ratchet 44
Output transmission gear 4 with ratchet because a and 46a slide
6 runs idle. However, the output transmission gear 3 with ratchet
6, the ratchet output transmission gear 46 also rotates in the counterclockwise direction. At this time, the ratchet-equipped output transmission gear 46 and the ratchet-equipped pinion gear 44 that rotates clockwise are the ratchet 44a,
There is no problem because 46a slips and spins idle. As described above, the reciprocating bevel gear 20 reciprocally rotates, whereby the ratchet output transmission gear 36 and the ratchet output transmission gear 46 continuously rotate in the clockwise direction and the counterclockwise direction, respectively. Will be done.

As a result, the output transmission gear 60 fixed to the left shaft 38 together with the ratchet output transmission gear 36 continuously rotates in the clockwise direction like the ratchet output transmission gear 36. Further, the output transmission gear 48 fixed to the right shaft 58 together with the ratchet output transmission gear 46 is also the ratchet output transmission gear 46.
Rotates counterclockwise continuously as in. Therefore,
The output receiving gear 50 with a ratchet that meshes with the output transmission gear 48 continuously rotates clockwise, and the output transmission gear 60
The output receiving gear 62 with a ratchet that meshes with continuously rotates counterclockwise. Either of the ratchet-equipped output receiving gears 50 and 62 is connected to the output shaft 66 by the one-way clutch built-in ratchets 52 and 54 according to the slide position of the forward / reverse switching member 56. As a result, the output receiving gear 5 with a ratchet
Either continuous rotation of 0 and 62 is transmitted to the output shaft 66, causing the screw 70 to rotate continuously in one direction.

That is, as shown in FIG. 2B, when the forward / reverse switching member 56 is in the upper slide position, the ratchet teeth 50a and 52a mesh with each other, so that the ratchet output receiving gear 50 and the one-way clutch are built-in. The ratchet 52 is connected. On the other hand, the ratchet teeth 54a and 62a are separated from each other, and the ratchet output receiving gear 62 and the one-way clutch built-in ratchet 54 are separated.
Has been separated. As a result, the one-way clutch built-in ratchet 52 continuously rotates clockwise together with the ratchet output receiving gear 50, and the built-in one-way clutch causes the one-way clutch built-in ratchet 52 to lock the output shaft 66 and rotate clockwise. Rotate in the direction. Therefore, if the occupant moves the left and right handle pedal arms 12 and 22 in this state, the output shaft 66 rotates in the clockwise direction and the screw 70 rotates in the normal direction, so that the human-powered boat 2 moves forward.

On the other hand, when the forward / reverse switching member 56 slides downward, the ratchet output receiving gear 50 and the one-way clutch built-in ratchet 52 are separated, and the ratchet output receiving gear 62 and the one-way clutch built-in ratchet 54 are connected. ing. As a result, the one-way clutch built-in ratchet 54 continuously rotates counterclockwise integrally with the ratchet-equipped output receiving gear 62,
The built-in one-way clutch locks the output shaft 66 and rotates it in the counterclockwise direction. Therefore, when the handle pedal arms 12 and 22 are operated in this state, the output shaft 66 rotates counterclockwise, the screw 70 is reversed, and the human-powered boat 2 moves backward. As described above, the forward / backward switching of the human power propulsion boat 2, that is, the forward / reverse switching of the screw 70 is performed by an occupant sliding the forward / reverse switching member 56 up and down by a transmission mechanism (not shown).

As described above, by alternately reciprocally rotating the pair of left and right handle pedal arms 12 and 22, the screw is rotated by the gear mechanism in the gear box 10 to propel the human-powered boat 2. It is. As a result, it is not necessary to pass the dead point like the conventional pedals, and the handle pedal arms 12, 22
Since the length can be made sufficiently long, it can be more easily propelled with a small force.

Further, when the rotation speed of the output shaft 66 exceeds the rotation speed of the ratchet 52 with a built-in one-way clutch, the one-way clutch slips, whereby the inertial force stored in the flywheel 68 is taken out, and the output shaft 66 of the output shaft 66 is extracted. The rotation continues. Similarly, even when the rotation speed of the output shaft 66 exceeds the rotation speed of the ratchet 54 with a built-in one-way clutch, the one-way clutch can slip to obtain a coasting force. As a result, the propulsive force input from the handle pedal arms 12 and 22 can be effectively used, and the occupant's burden is reduced.

In the present embodiment, the handle pedal arms 12 and 22 as input arms are operated by using both hands and feet at the same time, but the input arms may be reciprocally rotated by only hands or feet. Good. Even in this case, since it is not necessary to pass the dead point and the arm length can be made long, it is possible to easily row with a force smaller than that of the conventional pedal type. Further, although a pair of left and right handle pedal arms 12 and 22 is provided to alternately reciprocally rotate the left and right limbs, only one input arm may be provided, or three or more input arms may be provided to provide a plurality of input and output arms. It may be operated by a passenger. Furthermore, the pinion gears 34 and 44 with a ratchet, the output transmission gear 3 with a ratchet
6,46, Ratchet 52,5 with built-in one-way clutch
The structure such as 4 may be a structure other than that of this embodiment. The structure, material, arrangement, quantity, size, etc. of other parts of the human-powered boat are not limited to those in this embodiment.

Further, as an effect peculiar to this embodiment, since the handle pedal arms 12 and 22 as the input arms are simultaneously operated by the hands and feet, it is possible to easily row with a smaller force. Further, by providing the pair of left and right handle pedal arms 12 and 22, the left and right limbs can be alternately reciprocally rotated, and the operability is further improved.

[0029]

EFFECTS OF THE INVENTION The present invention allows the outboard propulsion device such as a screw to be continuously rotated in the same direction by reciprocally rotating the input arm, and passes through the dead point like the conventional pedal operation. The input arm can be made sufficiently long. From these things, human power is efficiently converted into propulsive force, and a boat can be easily rowed with a small force.

[Brief description of drawings]

FIG. 1 is a view showing a main part of an embodiment of a human power propulsion boat according to the present invention.

FIG. 2 is a diagram showing a main part of an embodiment of the human power propulsion boat.

FIG. 3 is a view showing an operation unit of an embodiment of the human power propulsion boat.

[Explanation of symbols]

 2 Human power propulsion boat 12,22 Input arm 32,34,36,38 First ratchet mechanism 40 Reciprocating rotary gear 42,44,46,58 Second ratchet mechanism 48 Second gear 50,52,54,62 Switching connection mechanism 60 1st gear 66 Output shaft 70 Outboard propulsion device

Claims (1)

[Scope of utility model registration request] 1. A boat for obtaining propulsion force by rotating an outboard propulsion device such as a screw by human power, the input arm being rotatably supported by the boat at an intermediate portion and reciprocally rotated by human power. When the reciprocating rotation gear reciprocally rotated by reciprocating rotation of the input arm of the reciprocating rotation gear
A first gear and a second gear arranged to rotate I bite <br/> if one another in the rotation axis parallel to respective axis lines, the rotational force in one direction of the reciprocating rotating gear the first A first ratchet mechanism for transmitting to one gear, and the reciprocating rotary gear
The other direction to a rotational force and a second ratchet mechanism for transmitting to the second gear, is connected to rotate by receiving one of the rotational force of the first gear or second gear, and that the
An output shaft, wherein the outboard propeller is fixed on the shaft, the
A human-powered boat equipped .