JP2013063708A - Boat with electric auxiliary power - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedal-driven boat which securely reduces a burden of pedaling of a passenger and relieves fatigue of a pedaler in travelling.SOLUTION: A rotating shaft 4 of a pedal, an output shaft 8a of an auxiliary motor 8, and a paddle rotating shaft 6 are connected by power transmission belts 5, 9, 10. Rotation of the pedal is transmitted to the paddle 7 and power of the auxiliary motor 8 is transmitted to the paddle 7 to assist force on pedal of the pedaler. The force on the pedal is securely alleviated by the power of the auxiliary motor, to securely prevent burden from being imposed on the pedaler even when a plurality of passengers board.

Description

  The present invention relates to a boat with electrically assisted power that is configured to include a mechanism for assisting human power in a boat that obtains propulsive force by human power.

  Conventionally, a rowing boat used for sightseeing in a park pond, lake, etc., transmits its power to a water wheel (paddle) by rowing a pedal for rowing, and uses the propulsive force of the paddle. A traveling structure is common. (See Patent Document 1).

Reality Sho 60-37917

  According to the rowing boat of the above structure, the passenger can move the boat forward by rotating the rowing pedal forward and reverse by rotating it backward, and the pedal is connected by a crank-shaped shaft. By doing so, it is structured such that a plurality of people can pedal simultaneously and rotate one paddle.

  However, these types of boats have recently become larger and three- or four-seaters have become commonplace, increasing the burden of pedal rowers. In order to solve such a problem, as in the above-mentioned Patent Document 1, it has been devised to enable pedaling by a plurality of passengers. The reduction in the pedaling force is offset by the increase in weight caused by the boarding of a plurality of people, and a dramatic reduction in the pedaling force cannot be obtained.

  Therefore, the present invention provides a rowing boat that can surely reduce the burden of the rowing of a passenger by the rowing boat and eliminate the fatigue of the rower during traveling.

  According to a first aspect of the present invention, in a rowing boat that floats by a float and determines a direction by a handle and rotates a paddle by a pedal to obtain a propulsive force, the pedal rotates and rotates in conjunction with the pedal rotating shaft. A paddle rotating shaft, and an auxiliary motor that reduces the burden of pedaling in conjunction with the pedal rotating shaft and the paddle rotating shaft.

  According to a second aspect of the present invention, in the first aspect of the invention, the auxiliary motor is provided in the upper part of the float, and is configured by connecting a rotating shaft of the pedal and a rotating shaft of the paddle with a power transmission belt. It is characterized by that.

  According to the first aspect of the present invention, the pedaling force is reliably reduced by the power of the auxiliary motor, so that it is possible to reliably prevent the rower from being burdened even when a plurality of people are on board. Can do.

  According to the second aspect of the present invention, the waterproof property is maintained by installing the auxiliary motor on the float, and the rotation of the pedal is detected by the transmission belt connected to the pedal rotating shaft, and this is used as a trigger for the auxiliary power. Can be transmitted to the paddle rotation shaft using a transmission belt connected to the paddle rotation shaft, and the structure can be simplified.

It is a figure which shows the boat with an electric auxiliary power of this invention. It is a rear view of the boat with electric auxiliary power.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 shows a boat A with electric auxiliary power according to the present invention. In FIG. 1, 1 is a hull, and 2 is a seat installed in the hull. 3 is a float that is attached to the lower part of the hull and obtains buoyancy on the surface of the water, and 4 is a pedal rotation axis that rotates forward or backward when a passenger sitting on the seat 2 runs a pedal (not shown). Yes.

  Reference numeral 5 denotes a power transmission belt that transmits the rotation of the pedal rotation shaft 4 to the paddle rotation shaft 6, and 7 denotes a paddle that rotates by the rotation of the paddle rotation shaft 6 and obtains a propulsive force to advance or reverse the boat A. Yes.

  An auxiliary motor 8 is provided at the upper part of the float 3, for example, at the lower rear part of the seat 2, and its output shaft 8 a is connected to the pedal rotating shaft 4 and the paddle rotating shaft 6 via the power transmission belts 9 and 10. Yes.

  The auxiliary motor 8 uses a separately-provided storage battery (battery pack) as a power source, and the battery pack is charged by an administrator of the boat A by connecting a predetermined charger to a commercial power source. It is intended to maintain a fully charged state when lending.

  FIG. 2 is a view of the boat A shown in FIG. 1 as viewed from the rear. The paddle 7 is disposed in the divided space 11 of the float 3, and a central shaft 12 is rotatably supported with respect to the float 3 by a bearing 13 having a watertight structure.

  The paddle rotating shaft 6 is fixed to the center shaft 12 extending into the float 3, and a power transmission belt 10 is hung between the paddle rotating shaft 6 and the output shaft 8 a of the auxiliary motor 8.

  That is, the power transmission belt 10 is connected to the output shaft 8a of the auxiliary motor 8 through the opening 14 shown in FIG. 1 of the float 3, but the inside of the float 3 is watertight by the bearing 13 (see FIG. 2) as described above. Since the state is secured, the auxiliary motor 8 does not come into contact with water through the opening 14. Even if water intrudes into the float 3 due to a malfunction such as a failure of the bearing 13, the auxiliary motor 8 is disposed at the upper part of the float 3 (for example, behind the seat 2), and the time until the water is submerged. Can be secured for a certain period of time.

  Next, the operation of the boat A with electric auxiliary power according to the present invention will be described. When the boat A is used, the manager of the boat A installs a charged battery pack (not shown) on the boat A to be rented, and then puts the user on the boat A.

  The user sits on the seat 2 of the boat A and turns the pedal rotating shaft 4 forward or backward by stroking a pedal (not shown). Thereby, the rotation of the pedal rotating shaft 4 is transmitted to the paddle rotating shaft 6 by the power transmission belt 5 and the paddle 7 rotates. As a result, the paddle 7 rotates forward or backward to move the boat A forward or backward.

  On the other hand, the rotation of the pedal rotation shaft 4 is also transmitted to the auxiliary motor 8 by the power transmission belt 9. The auxiliary motor 8 adjusts the assist amount by detecting a reaction force (torque) generated by the pedal depressing force with an attached torque sensor (not shown) and comparing it with the rotational speed of the paddle rotating shaft 6.

  As a result, the pedaling force of the user is reduced. For example, even when a plurality of people get on the boat A and the weight is increased, the burden on the rower can be surely eliminated, and the user can enjoy the sightseeing comfortably. Can enjoy. After the boat A is returned, the manager removes the battery pack (not shown) from the boat A and charges it to prepare for the next lending.

  As described above, the boat A with electric auxiliary power according to the present invention rotates the paddle 7 by using the assist of the auxiliary motor 8 even when a plurality of people get on the boat A and the weight increases. This reduces the pedal effort and reliably eliminates the burden.

  In addition, the pedal rotation shaft, the output shaft 8a of the auxiliary motor 8, and the paddle rotation shaft 6 are connected to each other by using the power transmission belts 5, 9, and 10, and the forward and reverse rotations of the pedal are ensured. In addition, it is possible to eliminate connecting gears as much as possible, and to increase the pedaling force of the rower even if the battery pack (not shown) runs out of battery. In addition, the paddle 7 can be rotated only by human power.

  In the above embodiment, the pedal rotation shaft 4, the output shaft 8a of the auxiliary motor 8 and the paddle rotation shaft 6 are connected by the power transmission belts 5, 9, and 10. However, the present invention is not limited to the belt. Of course, any means capable of transmitting power, such as a chain, may be used.

  In case of an emergency, the pedestal can be lowered by installing it on an operating mechanism capable of detaching the output shaft 8a of the auxiliary motor 8 from the power of the auxiliary motor 8, or on the pedestal where the auxiliary motor 8 can be lowered. It is also possible to remove the power transmission belts 9 and 10 by loosening the power transmission belts 9 and 10 so that the pedal effort can be reduced.

  It can be used as an assist mechanism for a rowing boat.

DESCRIPTION OF SYMBOLS 1 Hull 2 Seat 3 Float 4 Pedal rotation shaft 5, 9, 10 Power transmission belt 6 Paddle rotation shaft 7 Paddle 8 Auxiliary motor 8a Output shaft 11 Narrow space 12 Center shaft 13 Bearing A Boat with electric power assistance

Claims (2)

  In a rowing boat that floats by a float, determines a direction by a handle, rotates a paddle by a pedal, and obtains a propulsive force, it includes a rotating shaft of the pedal and a rotating shaft of the paddle that rotates in conjunction with the rotating shaft of the pedal, A boat with an electrically assisted power, comprising an auxiliary motor that reduces the burden of pedaling in conjunction with the rotating shaft of the pedal and the rotating shaft of the paddle.   2. The electrically powered auxiliary power boat according to claim 1, wherein the auxiliary motor is provided at an upper part of the float and is configured by connecting a rotating shaft of the pedal and a rotating shaft of the paddle with a power transmission belt. .

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