JPH0519085U - Rickshaw - Google Patents

Abstract

(57) [Summary] [Structure] A pair of left and right main hulls 1A and 1B are connected to each other by a connecting member 2, and a drive shaft body 8 is arranged on the connecting member 2 in a bow-stern direction. Four
From the connecting member 2 to the propeller shaft 12 of the propeller 16
Is a man-made ship in which a propeller-type propulsion device arranged in the bow-stern direction is provided so as to hang below the water surface, and the drive shaft body 8 and the propulsion shaft body 12 are interlockingly connected via sprockets 9 and 14 and a chain 15. Is. [Effect] Since the drive shaft that is directly rotated by the pedal and the propulsion shaft to which the propeller is attached are both arranged in the aft-stern direction, the rotational drive force of the drive shaft can be changed from that of a conventional bevel gear, for example. There is no need to change 90 degrees by using
Therefore, the transmission efficiency of the driving force can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a human-powered boat, and more particularly to a bicycle-type human-powered boat.

[0002]

[Prior Art]

 Some human-powered boats include bicycle-type drive systems, that is, pedal-type boats. Conventionally, the pedal-type human-powered boats have drive shafts and boats that are arranged in the width direction of the hull and are directly rotated by the pedals. A propulsion shaft arranged in the direction of success and connected to the propeller, and a driving force transmission mechanism (for example, one having a bevel gear, etc.) for interlocking and connecting these two shafts are provided, and a person sits forward and By pushing the pedal, the propeller is rotated and the hull is propelled.

[0003]

[Problems to be solved by the device]

 By the way, according to the above-mentioned conventional configuration, the driving force from the pedal is transmitted from the drive shaft in the ship width direction to the propulsion shaft in the aft direction through the drive force transmission mechanism. Inevitably, a mechanism for converting the driving force transmission direction, for example, a pair of bevel gears, is required, so that the driving force transmission efficiency is lowered.

Therefore, an object of the present invention is to provide a manpowered boat capable of solving the above problems.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the human-powered boat of the present invention connects a pair of left and right hulls with a connecting member, and a pedal type drive device in which the drive shaft is arranged in the bow-stern direction of the connecting member. A propeller type propulsion device, in which the propeller propeller shaft is arranged in the fore and aft direction from the connecting member, is provided so as to hang below the water surface, and the drive shaft body and propulsion shaft member are connected via a sprocket and a chain. Are linked together.

[0006]

[Action]

 According to the above configuration, since the drive shaft body directly rotated by the pedal and the propulsion shaft body to which the propeller is attached are both arranged in the aft-stern direction, the rotational driving force thereof is, for example, bevel gear. It is not necessary to change 90 degrees by using such as.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. The human-powered boat according to the present embodiment is a catamaran type and a two-seater bicycle type driving system. Further, the occupant rides sideways with respect to the traveling direction of the hull and pedals. It is a thing.

That is, a pair of slender left and right streamline main hulls 1A and 1B are connected to each other via a connecting member 2 with a predetermined distance therebetween, and on the connecting member 2, a bicycle frame is provided. A pedal type drive device 4 composed of two frame portions 3 corresponding to the above is provided on the connecting member 2, and each frame portion 3 is arranged forward and backward and in such a manner that an occupant faces in a lateral direction (a direction perpendicular to the bow-stern direction). Has been done.

Each of the frame portions 3 includes a frame body 5, a handle 6, a saddle 7, and a drive-side sprocket rotatably provided at a lower center of the frame body 5 via a drive shaft body 8. 9 and the pedal 10 connected to the drive shaft body 8. As described above, the arrangement is such that the drive shaft body 8 faces the bow-stern direction.

A slender streamlined auxiliary hull 11 provided with a propeller propeller described later is provided so as to be submerged from the central position of the connecting member 2. That is, in the auxiliary hull 11, a propulsion shaft body 12 in the bow-stern direction is rotatably provided via a pair of front and rear bearings 13, and the propulsion shaft body 12 is located at a position corresponding to the drive side sprocket 9. The driven side sprockets 14 are attached to the driven side sprockets 14, and a chain 15 is endlessly wound around the driven side sprockets 14 and the corresponding driving side sprockets 9. Further, the rear end portion of the propulsion shaft 12 is A propeller 16 is attached to the.

A rudder 17 is attached to the stern of each of the main hulls 1A and 1B, and each rudder 17 is mounted on the connecting member 2 via a mounting pin 18 in the vertical plane in the arrow B direction. , C are interlockingly connected to the upper and lower positions of a steering rod 19 which is swingably provided, respectively, through a pair of ropes (for example, wires) 20, so that either occupant can steer the vehicle. By tilting the rod 19, both rudders 17 can be simultaneously swung in the same direction.

The mounting phases of the pedal 10 with respect to the drive shaft body 8 in each of the above-mentioned frame portions are shifted by 90 degrees from each other, and it is taken into consideration that rotation unevenness does not occur when two people push the pedal 10. ing. Reference numeral 21 denotes a guide sprocket for the chain 15 provided on the upper portion of the auxiliary hull 11, and a protective bottom plate 22 for protecting the bottom surface of each frame body 5 is provided on the upper portion of the auxiliary hull 11. Further, thin aluminum plates, for example, are used as the outer plates of the hulls 1A and 1B to reduce the weight of the hull.

Therefore, in the above-described configuration, as shown in FIGS. 1 and 2, the occupant A rides sideways on the saddles 7 provided on the front and rear frame bodies 5, and each occupant A pedals the pedal 10. The drive shaft body 8 is rotated. Then, the propulsion shaft 12, that is, the propeller 16 is rotated via the drive side sprocket 9, the chain 15, and the driven side sprocket 14, and the hull runs on the water surface (sea surface).

As described above, since the mechanism for changing the transmission direction of the driving force by 90 degrees is not interposed between the driving shaft body 8 and the propulsion shaft body 12, the driving force is efficiently supplied. It is transmitted to the propeller side.

In the above embodiment, the number of occupants was two, but of course, the number of occupants may be one or three or more.

[0016]

[Effect of the device]

 As described above, according to the configuration of the present invention, since the drive shaft body that is directly rotated by the pedal and the propulsion shaft body to which the propeller is attached are arranged in the fore-and-aft direction, the rotational drive force is As described above, it is not necessary to change the angle by 90 degrees using, for example, a bevel gear, and therefore, the transmission efficiency of the driving force can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a human-powered boat according to an embodiment of the present invention.

FIG. 2 is a partially cutaway rear view of the human powered boat in the embodiment.

FIG. 3 is a plan view of the human-powered boat in the embodiment.

FIG. 4 is a side view of a main portion of a steering rod of the human powered boat in the embodiment.

[Explanation of symbols]

 1A, 1B Main hull 2 Connection member 3 Frame part 4 Pedal type drive device 5 Frame main body 8 Drive shaft body 9 Drive side sprocket 10 Pedal 11 Auxiliary hull 12 Propulsion shaft body 14 Driven side sprocket 15 Chain 16 Propeller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Kishimoto 5-3-8 Nishi-Kujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. 3-28 Hitachi Shipbuilding Co., Ltd. (72) Inventor Masashi Kuwana 5-3-8 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture 5th, 3rd, 28th, Kujo Inside Hitachi Zosen Corporation

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right hulls are connected by a connecting member, and a pedal type drive device having a drive shaft body arranged in the bow-stern direction is provided on the connecting member, and the propeller is propelled from the connecting member. A propeller-type propulsion device in which the shaft body is arranged in the bow-stern direction is provided so as to hang below the water surface, and the drive shaft body and the propulsion shaft body are interlockingly connected through a sprocket and a chain. ship.