WO2010121547A1

WO2010121547A1 - Rowboat type bicycle

Info

Publication number: WO2010121547A1
Application number: PCT/CN2010/071979
Authority: WO
Inventors: 陈培基
Original assignee: Chan Pui Gay Gary
Priority date: 2009-04-22
Filing date: 2010-04-21
Publication date: 2010-10-28
Also published as: CN201424108Y

Abstract

A rowboat type bicycle includes a frame (1), a front fork (2), a front wheel (3) mounted on the front of the frame via the front fork and a rear wheel (4) mounted on the rear of the frame. The rowboat type bicycle also includes a handle strut (6) which is retractable and the lower part of which is mounted on the front fork. A handle (5) is arranged on the upper part of the handle strut for controlling the heading direction of the bicycle and driving the handle strut to stretch or retract. A force-returning device (8) is arranged on the frame in a reciprocating manner. A driving cable (9) has a part coiling on the force-returning device and both ends thereof are respectively fixed on the handle and the force-returning device. A first chain wheel (11) is mounted on the force-returning device. A first flywheel (13) is provided on one side of the rear wheel for driving it to rotate. A first driving chain (12) is connected to the first chain wheel and the first flywheel. Therefore, the user can drive the rowboat type bicycle by rowing so as to reduce the restriction of the place for the rowboat motion.

Description

Rowing boat technology

The present invention relates to a bicycle, and more particularly to a rowing bicycle that can be cycled in a rowing manner. Background technique

Rowing is an outdoor sport that most people love. However, since rowing is required to be carried out on the surface of the water and is restricted by the site, it is difficult for people to engage in the sport frequently. In order to solve the problem of site restrictions, a rowing exercise machine has been developed. This rowing machine can be placed indoors or indoors so that the user can row the boat without the restrictions of the venue. However, such a rowing exercise machine is usually fixed, so that the user inevitably feels that the fixed rowing machine is monotonous after repeated use.

Cycling is also an outdoor sport that many people like. People can enjoy the outdoor scenery while riding a bicycle. However, an ordinary bicycle can only be driven by the pedal pedal, so that only the lower limbs of the rider can usually be exercised, and the upper limb does not have the corresponding exercise at all.

In order to overcome the above problems, it is an object of the present invention to provide a machine that combines rowing and cycling, so that the user can perform a rowing exercise while enjoying the outdoor scenery. Summary of the invention

In view of the above problems, an object of the present invention is to provide a rowing boat including a bracket, a front fork, a front wheel mounted to the front of the bracket by the front fork, and a rear wheel mounted to the rear of the bracket, wherein The rowing bicycle may further include: a handle struts which are telescopic rods and a lower end fixed to the front fork; a handle fixed at an upper end of the handle struts to control the traveling direction of the rowing bicycle and drive the handle struts a stretching or contracting movement; a returning device, which is reciprocally rotatably disposed on the bracket; an actuating cable, a part of which is coiled on the returning device, and two ends of which are respectively fixed on the returning device and the handle; the first sprocket The first flywheel is disposed on one side of the rear wheel for driving the rear wheel to rotate; and the first transmission chain is connected to the first sprocket and the first flywheel.

Thus, the user can ride the rowing boat in a rowing manner, reducing the rowing motion pair Site requirements restrictions.

Preferably, the force-returning device may include: a support shaft fixedly disposed on the bracket; a hub rotatably disposed on the support shaft; and a coil spring fitted to the support shaft in a center hole of the hub Upper, and both ends thereof are respectively fixed to the hub and the support shaft.

In addition, the rowing boat may further include a support frame fixed to the bracket, and the support shaft is fixedly disposed on the support frame. The rowing boat can also include a seat that is secured to the hub end and that secures the first sprocket.

Preferably, the actuation cable is coupled to the pullback device and the handle via one or more positioning members secured to the bracket. For example, the positioning component can be a pulley.

In another aspect, the rowing boat further includes: a second sprocket rotatably disposed on the bracket; a second flywheel disposed on a side of the rear wheel opposite to the first flywheel; Connecting the second sprocket and the second flywheel; and a pedal for driving the rotation of the second sprocket.

In addition, the rowing boat may further include a brake device and a seat mounted on an upper side of the middle portion of the bracket.

An advantage of the present invention is that its rowing boat can simultaneously exercise the upper and lower limbs of the user and increase the enjoyment of cycling. DRAWINGS

The invention is described in detail below with reference to the accompanying drawings, in which

Figure 1 is a schematic view showing an embodiment of a rowing boat of the present invention;

Figure 2 is an enlarged plan view showing the power-return device of the present invention;

Fig. 3 is an exploded perspective view showing the power absorbing device of the present invention. detailed description

Figure 1 shows an embodiment of a rowing boat of the present invention. As shown in Fig. 1, the rowing boat of the present invention comprises: a bracket 1, a front wheel 3 mounted to the front of the bracket 1 by means of the front fork 2, and a rear wheel 4 mounted at the rear of the bracket 1. A handle 5 for controlling the advancing direction of the rowing boat is provided on the front fork 2 by means of a handle strut 6, wherein the lower end of the handle strut 6 is fixed to the front fork 2, and the upper end thereof is fixedly coupled to the handle 5. The handle strut 6 is a telescopic rod that can be extended and contracted by the handle 5. Similar to a conventional bicycle, the rowing boat of the present invention may also include a brake device and an The seat mounted on the upper side of the middle of the bracket is not mentioned here.

The force returning device 8 is reciprocally disposed in the middle of the bracket 1. Alternatively, the bracket 1 may be provided with a support frame 7, and the power return device 8 may also be disposed on the support frame 1 in a reciprocating manner. The rotation of the force-returning device 8 is actuated by the actuating cable 9, wherein a part of the actuating cable 9 is coiled on the force-returning device 8, and one end thereof is fixed to the force-returning device 8, and the other end is fixed to the handle 5. In order to prevent the actuation cable 9 from interfering with other components, the actuation cable 9 can be coupled to the handle 5 via one or more positioning members 10, such as pulleys, that are fixed to the bracket 1.

2 and 3 show an example of the power-return device of the present invention. The force-returning device 8 comprises: a support shaft 18 fixed to the bracket 1 or the support frame 7; a hub 19 rotatably disposed on the support shaft 18; and a coil spring 20, for example, a spring, which is at the hub 19 The center hole is fitted on the support shaft 18, and both ends thereof are fixed to the hub and the support shaft, respectively.

The first sprocket 11 is fixedly disposed on the urging device 8 to rotate with the urging device 8. For example, as shown in Fig. 3, the first sprocket 11 support 21 can be provided on the return force device 8, wherein the support 21 is fixed to the end of the hub 19 of the return force device 8. Alternatively, the first sprocket 11 may be directly connected; t is fixed to the end of the hub 19 of the return force device 8 early or by other connecting means such as rivets or screws. The first sprocket 11 is also coupled to the first flywheel 13 disposed on one side of the rear wheel 4 via a first chain 12. Similar to the flywheel of a conventional bicycle, the first flywheel 13 is a one-way clutch that drives the rear wheel to rotate in one direction.

During use, the user can pull the handle 5 upwards so that the hub 19 of the pullback device 8 can be rotated by the actuating cable 9. At this time, the hub 19 will drive the first sprocket 11 to rotate synchronously, and the first sprocket 11 drives the first flywheel 13 to rotate through the first transmission chain 12, thereby driving the rear wheel 4 of the rowing bicycle to rotate, so that the rowing bicycle go ahead.

When the user stops pulling the handle 5, the hub 19 is reversely rotated by the coil spring 20, so that a part of the actuating cable 9 is re-coiled on the surface of the hub 19. Further, the actuating cable 9 pulls the handle 5 to press the handle stay 6 to contract the handle stay 6.

Thus, the user of the rowing boat of the present invention can ride the bicycle on the land in a rowing manner, reducing the requirements of the rowing motion for the venue.

In addition to the above-described first drive system consisting of the return force device 8, the actuation cable 9, the first sprocket 11, the first drive chain 12 and the first flywheel 13, the rowing boat of the present invention may further comprise a second drive system . The second drive system includes a second sprocket 14 rotatably disposed on the bracket 1, for example, disposed on a lower side of the middle portion of the bracket 1; and disposed on the other side of the rear wheel 4 opposite to the first flywheel 13 First a second flywheel 15; and a second drive chain 16 connecting the second sprocket 14 and the second flywheel 15. Similar to the flywheel of a conventional bicycle, the second flywheel 15 is a one-way clutch that drives the rear wheel to rotate in one direction.

Similar to a normal bicycle, the second sprocket 14 is driven by a pedal 17. The user can drive the second sprocket 14 to rotate by the pedal pedal 17, thereby driving the second flywheel 15 to rotate through the second chain 16, thereby driving the rear wheel 4 of the rowing bicycle to rotate, thereby advancing the rowing bicycle.

By using the first drive system, the user can drive the rowing boat forward in a rowing manner; and by using the second drive system, the user can drive the rowing boat forward in a manner that rides a regular bicycle. The user can also alternate between the two drive systems without mutual interference. Thus, the rowing boat of the present invention can simultaneously exercise the upper and lower limbs of the user and increase the fun of riding a bicycle.

While the present invention has been described with respect to the preferred embodiments, the present invention is not limited thereto, and various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention.

Claims

Claim

A rowing boat comprising a bracket, a front fork, a front wheel mounted to the front of the bracket by the front fork, and a rear wheel mounted to the rear of the bracket, wherein the rowing bicycle further comprises: a handle a strut, which is a telescopic rod and has a lower end fixed to the front fork;

a handle fixed to the upper end of the handle strut to control the direction of travel of the rowing boat and to drive the 4 bar hand strut for stretching or contracting motion;

a returning device, which is reciprocally disposed on the bracket;

Actuating cable, a part of which is wound on the force-returning device, and two ends of which are respectively fixed on the force-returning device and the handle;

a first sprocket fixedly disposed on the power return device;

a first flywheel disposed on one side of the rear wheel for driving the rear wheel to rotate;

a first drive chain connecting the first sprocket and the first flywheel.

2. The rowing boat according to claim 1, wherein the force returning device comprises: a support shaft fixedly disposed on the bracket;

a hub rotatably disposed on the support shaft;

A coil spring is fitted to the support shaft in a center hole of the hub, and both end portions thereof are fixed to the hub and the support shaft, respectively.

The rowing boat according to claim 2, wherein the rowing bicycle further comprises a support frame fixed to the bracket, and the support shaft is fixedly disposed on the support frame.

4. The rowing boat of claim 2, wherein the rowing boat further comprises a seat fixed to the hub end and configured to secure the first sprocket.

The rowing boat of claim 1 wherein the actuation cable is coupled to the force return device and the handle via one or more positioning members secured to the bracket.

6. The rowing boat of claim 5, wherein the positioning member is a pulley.

The rowing bicycle according to claim 1, wherein the rowing bicycle further comprises: a second sprocket rotatably disposed on the bracket;

a second flywheel disposed on a side of the rear wheel opposite to the first flywheel;

a second drive chain connecting the second sprocket and the second flywheel;

a pedal for driving the rotation of the second sprocket.

8. The rowing boat of claim 1 wherein the rowing boat further comprises Brake device.

The rowing boat according to claim 1, wherein the rowing boat further comprises a seat mounted on an upper side of the middle portion of the bracket.