WO2010056010A2

WO2010056010A2 - Double driving apparatus for a bicycle

Info

Publication number: WO2010056010A2
Application number: PCT/KR2009/006461
Authority: WO
Inventors: 박명호
Original assignee: Park Myung Ho
Priority date: 2008-11-14
Filing date: 2009-11-04
Publication date: 2010-05-20
Also published as: KR20100020407A; WO2010056010A3

Abstract

The present invention provides a double driving apparatus for a bicycle, with a simple configuration in which a wire connected to a drawable or rotatable handle bar is pulled to drive a driving shaft regardless of the pressure applied to a pedal in a pedal-driven bicycle driven by stepping on the pedal. The double driving apparatus (A) for a bicycle is configured such that a driving shaft (8) is coupled to a bottom bracket (7), a sprocket (13) which is connected, via a chain (12), to a sprocket (11) arranged on a rear wheel shaft (10) is installed on the driving shaft together with two crank arms (14) coupled to pedals (15), and power is transmitted to a driving shaft tube (23) when a wire (28) is drawn from a handle shaft (4) or a frame (2). The driving shaft (8) is secured inside the driving shaft tube (23) which is fitted into the bottom bracket (7) via a bearing (22) so that the driving shaft (8) is supported by a bearing (9) and a unidirectional bearing (24). A driving ring (25) is coupled, by a unidirectional bearing (26), to one end of the driving shaft tube (23) exposed outwardly from the bottom bracket (7), so that one end of the wire (28) connected to the handle shaft (4) or the frame (2) is fixed at the driving ring (25). The sprocket (13) is mounted to the other end of the driving shaft tube (23). The driving ring (25) has a side surface on which a spring groove (25a) is formed to accommodate a torsion spring (27) such that both ends of the torsion spring (27) are fixed at a stopper (2a) which is fixed at the driving ring (25) and the frame (2). Handles (20, 20’, 20”) which are coupled to the handle shaft (4) or the frame (2) can be operated to provide power to the double driving apparatus (A) and reduce the labor of the legs of a bicycle rider when the bicycle rider becomes fatigued due to a long period of riding a bicycle (1). The present invention enables bicycle riders to exercise the arms thereof during riding, and enables the rapid travel of the bicycle when the bicycle rider uses the arms and legs at the same time. The present invention also enables people with leg disabilities to ride bicycles by operating the handles (20, 20’, 20”) coupled to the handle shaft (4) or the frame (2) under the assumption that the people with leg disabilities can balance at a standstill state.

Description

Dual Drive for Bicycle

The present invention is a simple configuration that can drive the drive shaft irrespective of the pedal pressure by pulling the wire connected to the handle installed on the handle shaft or frame so as to pull or rotate the pedal in the configuration of the bicycle driven by stepping on the pedal It is to provide a dual drive device made of a bicycle.

Bicycles generally used are provided with a suspension and handle shaft at the front of the frame to combine the front wheel and the handle shaft, the rear wheel to the rear of the frame, and the drive shaft to the bottom bracket at the bottom of the frame. The drive shaft is equipped with two crank arms which are symmetrical to each other along with the sprockets connected to the rear wheel shaft and the sprockets connected to the chain, and the crank arms are coupled to the pedals respectively, and power is transmitted to the rear wheels of the bicycle when the pedals are pressed by foot. It is configured to move forward.

In recent years, the sprockets installed on the drive shaft and the rear wheel shaft are provided in multiple stages in order to efficiently provide power transmission of the bicycle, and the chain is moved by the front and rear derailleurs connected to the shift lever provided on the handle shaft. It is configured so that the speed of the bicycle can be increased or decreased.

However, in the case of the conventional bicycle as described above, in order to move forward, the step of continuously pedaling has to be preceded. There is a problem in that the leg muscles become tired when traveling long distances.

Korean Patent Application Publication No. 2006-0127588 (published Dec. 13, 2006; bicycles driven by the force of the limb) has been filed as a means for solving the above problems.

The above-described bicycle configuration allows the handle to be driven like a seesaw, and installs a crank interlocked with the handle to connect the rotating shaft installed inside the frame and the flexible joint (universal joint), and to connect the bevel gears to the rotating shaft and the driving shaft installed on the bottom bracket, respectively. It is a configuration that allows the drive shaft to rotate when the handle is moved by the seesaw.

In addition, Korean Patent Publication No. 2006-0104132 (published Oct. 9, 2006; bicycle power transmission device) has been filed.

It comprises a handle portion configured to be longer than the handle of the normal bicycle on the front frame of the bicycle; Power transmission unit consisting of large sprockets and pedals and a number of non-reversing clutches, bearings and gears at the bottom of the bicycle's lower frame: by constructing a shaft on the suspension frame of the bicycle frame and speaking the cable Saddle part that operates up and down: It is composed of a backrest that is flowed by the user pushing the support supported on the rear wheel frame of the bicycle.

In addition, the gear shaft composed of a pedal crank and a large sprocket on both sides of the drive shaft installed on the lower side of the bicycle frame, the gear portion engaged with the gear portion, and the bicycle frame, the fixed-speaking bearing and the non-reverse clutch, sequentially In addition, the lower frame, the fixed speech bearing and the non-reversing clutch is affixed, and the top has a power transmission unit with a roller installed.

In addition, it is possible to generate power by alternately operating the handle portion installed on the front end frame of the bicycle, or to alternately rotate the pedal cranks installed on the drive shaft in the reverse direction to generate the power, or to the support that is fixed to the rear frame of the bicycle. The backrest is configured to allow the user to push the back to generate power, and is to be separated and coupled by the buried key and the gear part engaged with the driving shaft.

The bicycle power transmission device of the Republic of Korea Patent Publication No. 2006-0104132 described above refers to the specification and the drawings, and when the power transmission unit is driven, the crank arms to which the pedals on both sides of the bicycle are coupled are driven together. It was difficult to expect the effect of rest, and the composition was very complicated, making it difficult.

Accordingly, the present inventors have studied and developed the present invention as described above. By pulling or connecting a wire connected to a handle installed on the handle shaft or the frame so as to pull or rotate, the drive shaft is driven regardless of the pedal pressing force. With the technical problem of the present invention to provide a dual drive device for a bicycle made of a simple configuration that can be completed the present invention.

Handle to the drive shaft is configured to transmit power in one direction inside the drive shaft tube supported by the bearing coupled to the bottom bracket as a means for solving the technical problem, the handle installed on the handle shaft or frame to be pulled or rotated to the outside of the drive shaft tube And a drive means connected to the wire and restored to the original position by a torsion spring, which is a restoring means, to be configured to transmit power in one direction so that power can be provided by a driving force obtained by pressurization of the pedal or operation of the drive means. And the sprocket is configured to select the power transmission direction by the ratchet device to enable the reverse of the bicycle.

When the dual drive device for a bicycle of the present invention is applied to a bicycle, it is possible to drive the bicycle for a long time to operate the handle coupled to the handle shaft when the legs are fatigued to provide power to the driving means to reduce the fatigue of the legs You can do it, and you can even do arm movements while riding a bicycle.

And the present invention is a person with a little uncomfortable feet can ride a bicycle by operating the handle installed on the handle shaft or frame if the balance can be balanced in a stationary state, it can be applied to three-wheeled and four-wheeled bicycles, etc. It is a useful invention.

If the present invention is installed and used in a variety of bicycles that can ride two people will be able to further improve the running speed of the bicycle.

1 is a schematic side view showing an embodiment of a bicycle to which the present invention is applied;

Figure 2 is a perspective view showing a handle assembly state of the dual drive device that can be applied to the present invention

Figure 3 is a perspective view showing a handle assembly state of the rotational configuration of the dual drive device that can be applied to the present invention

Figure 4 is an exploded perspective view showing a preferred embodiment of the present invention dual drive device

5 is a cross-sectional view of the assembled state of FIG.

6 is an assembled state sectional view showing an example in which a plurality of drive rings are installed in the present invention dual drive device.

Figure 7 is a side view showing a driving ring operating state of the present invention

Figure 8 is a cross-sectional view of the ratchet used in the rear wheel shaft when used to reverse the bicycle of the present invention

Figure 9 is a side cross-sectional view showing the configuration of the ratchet used when reversing the bike is installed the present invention

The present invention is coupled to the drive shaft to the bottom bracket (bottom bracket), the drive shaft is installed on the rear wheel shaft and the sprocket is connected to the chain with the sprocket is connected to the two crank arm combined with the pedal, pull the wire from the handle shaft or frame side In constructing a dual drive device for the bicycle so that power is transmitted to the drive shaft tube when;

The dual drive unit combines the drive shaft to be supported by the bearing and one-way bearing inside the drive shaft tube installed to be supported by the bearing on the bottom bracket; One or two driving rings coupled to one end of the drive shaft tube exposed to the bottom bracket and fixed to one end of a wire connected to the handle shaft or the frame side are installed, and a sprocket is installed at the other end of the drive shaft tube. But; Forming a spring groove on the side of the drive ring is characterized in that the built-in torsion spring is fixed to both ends to the locking ring fixed to the drive ring and the frame.

Combination of the drive shaft tube and the sprocket is configured to screw the extension tube by forming a screw portion on the other end of the drive shaft tube, and to install a ratchet outside the extension tube to switch the driving direction; The ratchet is a gear formed on the outside of the extension tube, a plate coupled to contact with both sides of the gear, the pin is coupled to the plate by the two stopper is formed toward the gear and the outer side is formed with a locking projection, the steel ball caught on the locking projection And a spring for urging it; The plate is characterized in that the sprocket is coupled.

Combining the extension tube to protrude toward the hub to the sprocket coupled to the rear wheel shaft as the one-way bearing, and configured to switch the drive direction by installing a ratchet outside the extension tube; The ratchet is a gear formed on the outside of the extension tube, a plate coupled to contact with both sides of the gear, the pin is coupled to the plate by the two stopper is formed toward the gear and the outer side is formed with a locking projection, the steel ball caught on the locking projection And it is a configuration including a spring for pressing it, characterized in that the hub is coupled to the one side plate.

Hereinafter, a configuration according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 1 is a schematic side view showing an embodiment of the bicycle to which the present invention is applied, Figure 2 is a perspective view showing a handle assembly state of the dual drive device that can be applied to the present invention, Figure 3 can be applied to the present invention Figure 4 is a perspective view showing the assembled state of the handle of the dual drive of the dual drive device, Figure 4 is an exploded perspective view showing a preferred embodiment of the present invention dual drive, Figure 5 is a cross-sectional view of the assembled state of FIG. will be.

The present invention installs a suspension (3) and a handle shaft (4) in front of the frame (2) to couple the front wheels (5), the rear wheels (6) to the rear of the frame (2), the frame The drive shaft 8 is coupled to the bottom bracket 7 at the bottom of the middle 2 so as to be supported by the bearing 9, and the drive shaft 8 is installed on the rear wheel shaft 10 and includes a one-way bearing. Two crank arms 14 which are symmetrical with each other together with the sprockets 11 and the sprockets 13 connected to the chains 12, and the pedals 15 are coupled to the crank arms 14, respectively. In the construction of a general bicycle (1) configured to move forward when the power is transmitted to the rear wheel (6) when stepping on the foot), additionally configured a dual drive (A) that is operated irrespective of the pressure of the pedal (15) will be.

The double drive device (A) is installed on the bottom bracket (7) formed below the frame (2) so as to freely rotate the drive shaft tube (23) supported by the bearing (22), and the inner side of the drive shaft tube (23). Thus, the drive shaft 8 to which the crank arm 14 is coupled to both ends is assembled so as to be supported by the bearing 9 and the one-way bearing (non-reversing clutch) 24. In this case, the one-way bearing 24 transmits power to the drive shaft tube 23 when the drive shaft 8 rotates forward, and provides the function of forward driving of the drive shaft tube 23 in the state in which the drive shaft 8 is stopped.

The drive shaft tube 23 is exposed to the outside of the bottom bracket (7), the exposed one side portion is provided with a drive ring 25 with a one-way bearing 26, the rear end of the drive shaft tube 23 (10) Sprockets (11) and sprockets (13) connected to the chain (12) are installed.

One or two driving rings 25 may be installed.

A spring groove 25a is formed in the driving ring 25, and a torsion spring, such as a spring, having both ends fixed to the latch 2a fixed to the driving ring 25 and the frame 2 in the spring groove 25a. The built-in (27) is configured to be able to restore the drive ring 25 to its original position.

One end of the wire 28 is fixed to the outside of the drive ring 25 so as to rotate the drive ring 25, and the other end of the wire 28 is connected to the handle shaft 4 or the frame through the guide tube 28a. It is connected to the

handles

20, 20 ', 20 "installed on the handle shaft 4 or the frame 2 in the guided state 2).

The

handles

20, 20 ', 20 "may be configured in various ways, preferably the configuration of directly fixing the handle 20 to the end of the wire 28, as shown in Figure 3 handle ( 20 ') and the wire 28 is fixed to the handle 20 ", which is rotatably installed with the pin in the frame 2, as shown in FIG. To configure.

When the end of the wire 28 is directly fixed to the handle 20 as shown in Figure 1 to 2, only one drive ring 25 is installed, so that the handle 20 is located in the middle of the handle shaft (4) When configuring, it can be provided in an ideal configuration.

1 and 3, when the wire 28 is fixed to the handle 20 'of the rotational configuration, two driving rings 25 are installed, and the handle 20' is attached to the handle shaft 4. When configured to be located on both sides can be provided in an ideal configuration, the combined configuration of the handle shaft (4) to install the handle (20 ') of the rotational configuration so that the middle can be rotated to the bearing 21 to pull the wire You can do it. In addition, as shown in Figure 1 when the handle (20 ") to the frame (2) when coupled to the pin through the hole in the frame to fix the wire 28 to the handle (20") while acting as a lever when pulling the handle The wire 28 can be pulled out.

On the other hand, when the sprocket 13 is directly installed on the drive shaft tube 23, the bicycle 1 does not have a big problem when moving forward, but when the bicycle 1 is reversed, it is simultaneously reversed by the drive shaft 8 and the drive ring 25. Since the rotating force is transmitted and the reverse is impossible, in the present invention, the bicycle 1 may be configured to be reversed.

That is, in the present invention, the screw portion 23a is formed at the other end of the drive shaft tube 23, and the extension tube 29 is screwed thereto.

The ratchet 30 is installed outside the extension tube 29 so as to switch the driving direction, and the ratchet 30 is formed of the gear 31 formed outside the extension tube 29 and the gear 31. It is coupled to contact with both sides and the operating lever 33 is coupled to the pin to the plate 32 to which the sprocket 13 is coupled to one side.

The actuating lever 33 has two stoppers 34 formed toward the gear 31, a locking protrusion 35 on the outside thereof, and a steel ball 37 supported by the spring 36 on the plate 32. The steel ball 37 is located on either side of the locking projection 35 when the operating lever 33 is rotated by being pressed toward the locking projection 35 so that the sprocket 13 controls the rotation direction. As a configuration, when the actuating lever 33 is switched in the reverse direction, only the plate 32 and the sprocket 13 coupled thereto are reversely rotated while the driving shaft tube 23 is stopped and the reverse of the bicycle 1 is achieved. You lose.

8 shows another configuration in which the bicycle 1 can be reversed in the present invention.

That is, it is coupled to the extension pipe 39 to protrude toward the hub 50 to the sprocket 11 coupled to the rear wheel shaft 10 as a one-way bearing 38, the ratchet 40 is installed on the outside of the extension pipe 39 As configured so as to switch the driving direction, the ratchet 40 is coupled to the gear 41 formed on the outside of the extension tube 39, in contact with both sides of the gear 41 and coupled to the hub 50 on one side An actuating lever 43 coupled with a pin to the plate 42.

The actuating lever 43 is formed with two stoppers 44 toward the gear 41, a locking protrusion 45 on the outside thereof, and a steel ball 47 supported by the spring 46 on the plate 42. When the operating lever 43 is rotated by pressing the side toward the locking projection 45, the steel ball 47 is positioned on either side of the locking projection 45 so that the hub 50 controls the rotation direction. As a configuration, when the operating lever 43 is switched in the reverse direction, the sprocket 11 is stopped and the plate 42, the hub 50 and the rear wheel 6 coupled thereto are reversely rotated, thereby Reverse is made.

Reference numeral 16 in the drawings shows a saddle coupled to the upper side of the frame (2).

When the present invention is applied and used as a dual drive device (A) of the bicycle (1), it is possible to move forward without moving the leg, especially when the leg muscles are tired when driving for a long time.

That is, in order to use the bicycle (1) to which the present invention dual drive device (A) is applied, the ratchet (30) installed outside the extension pipe (29) is set in the forward direction in a state of riding like a general bicycle (1). If you put your feet on the pedal 15 and step on the pedal 15, the bicycle 1 is advanced.

When the pedal 15 is pressed as described above, the drive shaft 8 connected to the crank arm 14 is rotated, and the driving force of the drive shaft 8 is transmitted to the drive shaft tube 23 through the one-way bearing 24, and the drive shaft tube ( Power is transmitted to the rear wheels 6 through the chain 12 coupled to the sprocket 13 on the extension pipe 29 coupled to one side of the 23. At this time, the driving ring 25 is configured to transmit power to the drive shaft tube 23 and the one-way bearing 26, and the drive ring 25 is driven when the handle 20 is pulled or the handle 20 'of the rotational configuration is moved back and forth. Since the ring 25 is rotated forward to transmit power, and the drive shaft tube 23 is rotated forward while the drive ring 25 is stopped, the drive ring 25 is maintained in a stopped state.

Accordingly, when the leg muscles are tired while driving as described above, in the present invention, the

handles

20 and 20 ″ installed on the handle shaft 4 or the frame 2 without pulling the legs are pulled or rotated. The bicycle 1 may be driven by rotating the 20 'in the front-rear direction.

In addition, when the pedal 15 and the

handles

20 and 20 "are pulled or the handle 20 'of the rotational configuration is simultaneously rotated in the front-rear direction, a strong driving force can be provided, thereby enabling a speedy driving.

That is, when the

handle

20, 20 "or the handle 20 'of the rotational configuration installed on the handle shaft 4 or the frame 2 as described above, the wire 28 is drawn out and the drive shaft tube 23 ) And the drive shaft tube 23 is also rotated forward to transmit the driving force, and interposed between the drive ring 25 and the frame 2. The drive ring 25 is restored to its original state by the restoring force of the torsion spring 27 that is being used.

At this time, the drive shaft tube 23 and the drive shaft 8 transmits power to the drive shaft tube 23 when the drive shaft 8 rotates forward, and the drive shaft tube 23 rotates forward while the drive shaft 8 is stopped. Since the drive shaft 8 is stopped when driving the sprocket 13 using the handle 20 as described above, the foot is lifted up on the pedal 15. Leave it to rest.

On the other hand, the present invention is provided with a ratchet 30 is installed in the extension pipe 29 coupled to the other end of the drive shaft tube 23 to control the power can be selectively transmitted in both directions by the operation of the operating

lever

33 or 8 and The ratchet 40 is installed between the hub 50 of the rear wheel 6 and the sprocket 11 as described above. When the bicycle 1 is driven as described above, the

ratchet

30 and 40 are driven backward. Reversal of the bicycle (1) can be made by the effort of rotating the operating lever (33) (43).

That is, in the case of the ratchet 30, as shown in FIG. 9, the

plates

31 and 41 formed on the outside of the

extension pipes

29 and 39 and the plates coupled to contact both sides of the

gears

31 and 41, respectively. (32) (42) and two stoppers (34) (44) are formed on the plates (32) and (42) with pins and gears (31) and (41) toward the outside and the locking projections (35) (45). ) Is formed of a configuration comprising a working lever (33) (43), and steel balls (37) (47) caught on the side of the engaging projection (35) (45) and springs (36) (46) for pressing them. When the operating levers 33 and 43 are switched in the reverse direction, the driving shaft tube 23 and the like are stopped, and only the plate 32 and the sprocket 13 coupled thereto are reversely rotated or the rear wheel of the bicycle ( 6) Only the reverse rotation is made because the reverse of the bicycle (1) is made naturally.

Although the technical spirit of the present invention has been described with reference to specific embodiments as described above, the protection scope of the present invention is not necessarily limited to these embodiments, and a simple design change within a range that does not change the technical gist of the present invention. In the case of substitution of common means, the scope of the present invention is clearly clarified.

When the dual drive device for a bicycle of the present invention is applied to a bicycle, the fatigue of the user's legs can be reduced, and the driving speed can be improved.

Claims

A drive shaft 8 is coupled to the bottom bracket 7, and a sprocket 13 connected to the sprocket 11 and the chain 12 installed on the rear wheel shaft 10 is connected to the drive shaft 8. 15, the two crank arm 14 is installed, the dual drive device for the bicycle to transmit power to the drive shaft tube 23 when pulling the wire 28 from the handle shaft (4) or frame (2) side In constructing (A),

The double drive device (A) is to support the drive shaft (8) to be supported by the bearing (9) and one-way bearing 24 in the inner side of the drive shaft tube 23 installed to be supported by the bearing (22) on the bottom bracket (7) Combine,

A drive in which one end of the wire 28 connected to the handle shaft 4 or the frame 2 is fixed by the one-way bearing 26 to one end of the drive shaft tube 23 exposed to the outside of the bottom bracket 7. Install the ring 25, the sprocket 13 is installed on the other end of the drive shaft tube 23,

A spring groove 25a is formed on the side of the driving ring 25 so that both ends of the torsion spring 27 are fixed to the locking ring 2a fixed to the driving ring 25 and the frame 2. Bicycle dual drive system.
The method of claim 1,

The coupling of the drive shaft tube 23 and the sprocket 13 is to form a screw portion (23a) on the other end of the drive shaft tube 23 to screw the extension tube 29, the ratchet (30) outside the extension tube 29 Install and configure to switch the driving direction,

The ratchet 30 is a gear 31 formed on the outside of the extension pipe 29, the plate 32 coupled to contact with both sides of the gear 31, the plate 32 is pinned to the gear 31 toward the gear 31 Two stoppers (34) are formed and the outer side includes a working lever (33) formed with a locking projection (35), a configuration including a steel ball (37) caught by the locking projection (35) and a spring 36 for pressing it Is,

The plate 32 is a dual drive device for a bicycle, characterized in that coupled to the sprocket (13).
The method of claim 1,

The extension pipe 39 is coupled to the sprocket 11 coupled to the rear wheel shaft 10 by the one-way bearing 38 so as to protrude toward the hub 50, and the ratchet 40 is installed outside the extension pipe 39. Configure it to switch directions,

The ratchet 40 is a gear 41 formed on the outside of the extension tube 39, a plate 42 coupled to contact with both sides of the gear 41, a pin is coupled to the plate 42 toward the gear 41 Two stoppers (44) are formed and the operating lever 43, the engaging projection 45 is formed on the outside, the configuration including a steel ball 47 and the spring 46 for pressing the locking projection 45 Is,

The one side plate 42, the dual drive device for a bicycle, characterized in that coupled to the hub (50).