KR20110030968A - Assembled disk gear and power transmission apparatus using the same - Google Patents

Abstract

PURPOSE: An assembled disk gear and a power transmission apparatus using the same are provided to prevent the generation of friction and noise or the loss of power and ensure low manufacturing cost because a plurality of disks and spacers of different thicknesses are integrated into a single gear. CONSTITUTION: An assembled disk gear comprises a plurality of disks and spacers. The disks are formed in different sizes with repetitive gear teeth on the perimeter thereof. The spacers fix the gaps between the disks. A power transmission apparatus comprises the assembled disk gear, a first gear(G1), and a second gear(G2). The first gear comprises a rotary shaft in which the disks and the spacers are fixed. The second gear engages with the gear teeth of the assembled disk gear to form a bevel gear.

Description

DISK GEAR AND POWER TRANSMISSION APPARATUS USING THE SAME

The present invention relates to a gear formed by combining a plurality of disks having a repetitive tooth on the rim,

More specifically, in order to allow the sprocket contacting the roller gear proposed for a conventional chainless bicycle to be interlocked at various angles according to the use environment, the contact surface curve has a three-dimensional shape instead of a standard shape. Since it has to be formed in a complicated way, it leads to an increase in production cost, which causes a fatal problem in commercialization.

The present invention is a combination of a plurality of disks having a gear, through a spacer having a variety of thicknesses to ensure a smooth rolling contact by combining so as to easily adjust the angle with the roller gear according to the situation,

Above all, the present invention relates to a disk combination gear and a power transmission device using the same, which can provide the advantage of securing a price competitiveness, which is a task of desperate saving, from the position of a late-road chainless bicycle company.

Efforts to implement a chainless bicycle have been made since the publication of Patent Publication No. 1995-0029129 (Nov. 22, 1995), `` Bebel Gear-Driven Sharfood Powered Bicycle, ''

Patent Registration No. 0217891 (1999.06.07) `` Automatic Gearless Bicycle ''

Patent Registration No. 0414889 (2003.12.29) 『Gainless power transmission gear member』,

Patent Registration No. 0491743 (2005.05.18) 『Power transmission device of bicycle』,

Patent registration No. 0527093 (2005.11.01), `` curve value forming device of sprocket gear for power transmission device of chainless bicycle ''.

The development direction of the power transmission device for the conventional artless bicycle is how reliable the power transmitted through the crank connected to the pedal is transmitted to the rear wheel.

How to guarantee the low manufacturing cost corresponding to the chain-type power train,

And it was how to implement the transmission gears commercialized in the chain-type power train.

The patent registration No. 0414889 proposes a power transmission member consisting of a crown gear mounted on the crankshaft side with a pedal and a roller gear to transfer the power of the crankshaft to the rear wheel side.

In the commercialized products, due to the large contact area between the crown gear and the roller gear, there were problems of increased friction, unnecessary power consumption, and loud noise.

In addition, the manufacture of the crown gear has to use a cutting process method, there is a problem in that the cost burden for cutting while ensuring the strength and wear resistance of the gear.

There is a patent registration No. 0581839 (2006.05.13) [power transmission device] to solve this problem,

In this patent, the spur gear and the chain gear are grafted and deformed to form a tooth such that the groove is an acute angle with an imaginary plane formed by the disk, and has a plurality of rotational values of a roller type engaged with the groove. By constructing the intermediary member, we tried to ensure the operation reliability of the gear and the intermediary member that make up the cross-axis gear while reducing the gear manufacturing cost.

In addition, Patent Registration No. 0842361 (2008.06.24) [Power transmission device] intersects with an intermediate member having roller-type rotating teeth radially arranged so as to engage with the groove of the sprocket and form a right angle with respect to the rotation axis. It is proposed a technology that can ensure rolling reliability by reducing the friction coefficient by configuring the shaft gear to prevent the loss of power, while ensuring the operation reliability and easy manufacturing.

Nevertheless, in the case of sprockets (usually provided on the crankshaft or the rear wheel hub) that come into contact with the roller gears forming the power transmission system proposed for such a conventional chainless bicycle.

Depending on the application, various contact angles are required, and the distance from rear crankshaft to crankshaft equipped with pedals is standardized in bicycles produced in the present.However, depending on the manufacturer, the distance varies from a few millimeters to several centimeters. for,

Rather than producing a separate bicycle frame for the power transmission system for realizing a chainless bicycle, the product is developed and produced and sold to equip the existing chain drive bicycle with a chainless power transmission device to produce a late-chainless power transmission device that can be competitive. From the point of view of the seller, it is inappropriate to produce separate chainless power trains according to the deviation of the frame dimensions of the existing bicycle manufacturers.

It is a task of desperate to develop a single chainless power train that can cover all the frame dimensional deviations ranging from several mm to several cm and can cope with various contact angle changes of the crank and the pivot shaft.

As such, the operating environment that must cover all the frame dimensional deviations ranging from several mm to several cm)

In order to be able to interlock at various angles depending on the curve, the contact surface must be complicatedly formed into a three-dimensional shape instead of a standard shape.

If not, the contact surface will not be formed accurately. Therefore, non-contact or interference will occur and power transmission or rolling contact will not be smooth.

The introduction of complex shapes has been recognized as inevitable,

Precision machining of such complex shapes will inevitably lead to an increase in manufacturing cost.

This cost escalation problem is still the most serious and top priority, given the situation of latecomer chainless bicycle manufacturers who must guarantee the same, similar or possibly lower supply prices to the overwhelming market-driven chaingear. to be.

On the other hand, in the past, it was common to install various types of locks on wheels (rims or spokes) of bicycles and motorcycles, and to open and lock them using manual or automatic (electronic) keys.

However, conventional locking devices have not been proposed to lock the rotation of the rotating shaft in consideration of the power transmission characteristics of the chainless bicycle.

In addition, the electric bicycle uses a battery that rotates the front or rear wheels with the power to rotate the electric motor. A bicycle with a chain mainly drives the rear wheel by installing an electric motor in a built-in hub of the rear wheel.

Such a chain bicycle is difficult to install a transmission device, in contrast, in the case of a chainless bicycle is suitable for attaching the electric motor to the relay member between the crank and the rear wheel hub.

In this regard, Patent No. 0769877 (October 18, 2007) [Electric motor with integrated power transmission shaft] proposes a power transmission device suitable for an electric bicycle.

However, the patent requires a lot of power to roll the pedal due to the electric unit similar to the motor in the relay member, if you want to move with only pedal effort,

Since rotor rotates together with relay member rotating shaft, power loss due to magnetic force of permanent magnet

There is a fatal problem of low commerciality due to the lack of a manual or electric movement combined function.

The present invention according to the power transmission mechanism meshing with the sprocket and the roller bearing, in particular, according to the alignment angle of the roller in the power transmission mechanism for a chainless bicycle or the angle of engagement with the sprocket shaft,

Also, according to the radius of curvature of the roller,

In order to make surface contact, the sprocket tooth shape should form a special three-dimensional tooth surface.

As the angle of contact changed, the interpretation of the contact surface became very complicated,

In addition, in order to process the three-dimensional tooth surface modeling process with a high-performance processing equipment, such as 5-axis machining machine is proposed to solve the problem that takes a lot of processing time, processing cost is expensive and the productivity is reduced.

To this end, the present invention forms a single gear by combining a plurality of disks with repetitive gears formed at the edges and spacers having various thicknesses,

When the disc combination gear is provided on the crankshaft, it is possible to make smooth contact with the roller forming the gear assembly provided on the input side of the relay member that transfers the power of the crankshaft to the rear wheels. In addition, it is possible to provide a disk combination gear and a power transmission device using the same, which are inexpensive and most of all, have low processing cost.

Furthermore, when the disks are different in size, the rollers forming the gear assembly of the relay member are inclined at an angle with respect to the axis.

Install each one for the big radius and the small radius and insert the spacer between the two discs.

Furthermore, by changing only the intermediate spacer length according to the change of the tooth angle, stable engagement between the roller gear and the disc combination gear is easily realized.

In addition, it is possible to easily cope with the deviation of the frame dimensions for each bicycle manufacturer, ensuring universality,

If necessary, some or all of the disks may be bent by the gear region,

Above all, since the disk is processed with a glass, the production speed is high and the processing cost is low, so that a disk combination gear suitable for mass production and a power transmission device using the same can be provided.

On the other hand, the present invention, for example, in the process of transmitting the pedal effort of the pedal to the rear wheel in a chainless bicycle by installing a locking device on the rotation shaft of the relay member interposed in the middle or locking by manual or automatic (wireless signal control) An object of the present invention is to provide a power transmission device having a rotation shaft locking means which is unlocked.

In the present invention, the locking means is in the locked position by a spring force, for example, when there is no electric signal, the magnetization by the solenoid coil when the electric signal is input to operate the locker does not interfere with the locking projection of the pivot shaft It is an object of the present invention to provide a power transmission device having a rotation shaft locking means which is moved to a position which is not released.

Furthermore, the present invention is to prevent the situation that the locking function is not performed when there is only one rocker and the locking projection of the pivot shaft descends to contact the rocker.

Since the lockers of the locking means are spaced apart from each other by two, the object of the present invention is to provide a power transmission device having a rotating shaft locking means so that one locker can be moved to the locked position even when the locking projection of the rotating shaft is in any position. It is done.

Another object of the present invention is to provide an electric and non-electric power transmission device that incorporates a clutch so as to obtain electric power by introducing an electric unit consisting of a rotor and a stator as in the conventional motor principle, and obtain manual power when necessary. It is done.

Furthermore, the present invention improves performance by introducing a deceleration means on the output side to achieve a low output problem at low speed rotation, which is a problem in general electric bicycles, to achieve high output and to improve the efficiency of the motor, thereby significantly reducing power consumption. An object of the present invention is to provide a power transmission device having excellent economic efficiency.

Disc combination gear according to the present invention to achieve the above object is

A plurality of disks having a repetitive tooth in the rim and between the disks

It comprises a spacer for spaced fixing.

In addition, the disk combination gear according to the invention the disk is different in size,

It is preferable that some or all of the disks have bent teeth.

Furthermore, the power transmission device using a disk combination gear according to the present invention

A disk combination first gear including a plurality of disks having a repetitive tooth formed on an edge thereof, a spacer for spaced separation between the disks, and a rotating shaft to which the disk and the spacer are fixed; And

A second gear meshing with the gear of the disk combination gear to form a cross shaft gear;

It is made, including.

On the other hand, the power transmission device having a rotating shaft locking means according to the present invention

coat;

A rotating shaft provided in the outer shell and supported by a bearing, the rotating shaft having a locking projection; And

A locking means coupled to the outer shell, the locking means including a locker that contacts the locking projections to prevent rotation of the rotation shaft when moving forward;

It is made, including.

In addition, the power transmission device having a rotating shaft locking means according to the present invention

The locking projection of the rotation shaft is one, the lockers of the locking means are spaced apart from each other by two,

The locking means includes a case and a solenoid provided in the case to advance and retract the locker,

The locker is supported by a spring, it is preferably located in the locked state or released state when the power is not applied.

Furthermore, the electric and non-electric combined power transmission device according to the present invention

coat;

A rotating shaft provided in the outer shell and supported by a bearing, and having an input gear and an output gear at both ends;

An electric unit including a rotor surrounding the rotating shaft with a bearing interposed therebetween, and a stator surrounding the rotor; And

A first clutch which transmits or blocks the power of the electric unit rotor to the output gear of the rotation shaft;

It is made, including.

In addition, the electric and non-electric power transmission device according to the present invention

The electric unit further includes a deceleration means, the power of the rotor is transmitted to the output gear via the deceleration means,

Furthermore, the deceleration means includes a rotating body connected to the rotor; And one or more planetary units comprising a plurality of planetary gears arranged in the rotating body, a sun gear meshing with the planetary gears, a ring gear externally connected to the planetary gears and connected to the shell.

When the power of the rotor is transmitted to the output gear by the first clutch, it is preferable to further include a second clutch for disconnecting the output gear and the rotation shaft.

Disc combination gear and a power transmission device using the same according to the present invention as described above

By forming a single gear by combining a plurality of disks having a repetitive tooth on the rim and a spacer having various thicknesses, when the disk combination gear is provided on the crankshaft, the relay member for transmitting the power of the crankshaft to the rear wheel It is possible to make smooth contact with the roller forming the gear assembly provided on the input side, so that there is no problem of friction, noise or power loss, and above all, the processing cost is low. If the rollers that make up the gear assembly are inclined at an angle with respect to the axis, they should be installed according to a large turning radius and a small turning radius, and the spacers should be sandwiched between the two discs. Inside the roller gear and disc combination gear It is possible to secure the universality because it can be easily implemented, and also it can easily cope with the frame dimensional deviation of each bicycle manufacturer, and if necessary, some or all of the disk can be bent in the gear portion, and above all, the disk Since it is processed with a glass, it has the advantage that it is suitable for mass production because of the fast production speed and low processing cost.

On the other hand, the power transmission device having a rotation shaft locking means according to the present invention, for example, in the chainless bicycle in the process of transmitting the pedal effort of the pedals to the rear wheel through the crank in the middle of the intermediate shaft in the rotation shaft of the relay member interposed Locking or unlocking by manual or automatic (wireless signal control) is installed, and the locking means is in the locked position by, for example, a spring force in the absence of an electrical signal. The locker can be moved to a position that does not interfere with the locking projection of the rotating shaft by being magnetized to operate the locker. Furthermore, when there is one locker and the locking projection of the rotating shaft descends to come into contact with the locker, the locking function can be performed. The lockers of the locking means are spaced apart from each other by two in order to prevent the occurrence of no situation. In any position, one locker can be moved to the locked position to help prevent theft or safety accidents.

Furthermore, the combined electric and non-electric power transmission device according to the present invention introduces an electric unit consisting of a rotor and a stator as in the conventional motor principle, obtains electric power, and introduces a clutch so as to obtain manual power when necessary, and further outputs. Introducing the speed reduction means, the low output problem at low speed rotation, which is a serious problem in general electric bicycles, is improved to achieve high output and the efficiency of the motor is improved, which can drastically reduce the power consumption. The device can be provided, making it suitable for application to superior electric bicycles and other similar power transmission mechanisms.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

The terms used in the present specification and the like are merely used to describe specific embodiments (a sun, an aspect) (or embodiments) and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification and the like, the terms “comprises” or “consists” are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described on the specification are present, and that one or more other features are present. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

The first to the second, the second to the third, and the fourth to the present specification are referred to to distinguish different components, and are not limited to the manufactured order, In the description and claims, the names may not coincide.

In the following description, the power transmission device P according to the present invention will be described mainly for the case of a chainless bicycle, but the present invention is not limited thereto.

1 to 3 and the disk combination gear and a power transmission device using the same,

4 and 5 associated with a power train having a rotational shaft locking means; and

The concept of FIG. 6 for the electric and non-electric power transmission device is not irrelevant and can be implemented in various forms.

First, as shown in FIG. 1, one gear G1 is configured by combining a plurality of disks.

Each disc has a repetitive tooth on its rim.

The gap between each disc is maintained by the spacer 15 shown in [C].

[A] in FIG. 1 is a relatively large first disk 11, and [B] is a relatively small second disk 13,

Tooth edges 11a and 13a are formed on the edges, and the toothed portions are bent to form bent portions 11b.

Hollows 11c and 13c are formed in which the idle prevention portions 11d and 13d serving as key grooves are formed for coupling with the rotating shaft 10S (see FIG. 2).

 The spacer 15 shown in [C] is a hollow 15a and an idle prevention portion 15b corresponding to the hollows 11c and 13c and the idle front portions 11d and 13d of the discs 11 and 13, respectively. ) Is formed.

One of the gears G1, which is formed by a combination of a plurality of disks and spacers, can be seen in FIG. 1D.

When the disc combination gear (G1) according to the invention is applied to the power transmission device (P) for the chainless bicycle

It is usually mounted on the rotating shaft (10S) forming a crank shaft connected to the pedal

It is engaged with the second gear (G2) forming a part of the relay member (G2R) for transmitting the power of the crank to the rear wheel.

Here, the term 'second' gear is a relative term for the disk combination gear, and the disk combination gear may be referred to as a 'first' gear.

The second gear G2 is composed of a plurality of rollers 25 fixed through shaft pins between the disc shaped first and second supports 21, 23,

As can be seen in Figure 4, the second gear (G2a) (G2b) corresponding to the roller gear assembly is provided on both ends of the rotating shaft (20S) to form an input gear and an output gear, respectively.

As described above, when the disc combination gear G1 according to the present invention is applied to a power transmission device P for a chainless bicycle,

For example, smoothly with the roller 25 which forms the 2nd gear G2 corresponding to the gear assembly provided in the input side of the relay member G2R which transmits the power of the rotating shaft 10S corresponding to a crankshaft to a rear wheel. Since it can be contacted, there is no problem of friction, noise or power loss, and above all, the processing cost is low, which can greatly contribute to solving the ground problem in the field of unchained bicycles.

Furthermore, the disks 11 and 13 may have different sizes.

When the roller 25 constituting the gear assembly of the relay member G2R is inclined at an angle with respect to the axis as shown in FIG. 2.

It can be installed for each large radius of rotation and small radius of rotation, and the spacers 15 can be inserted and fixed between the two disks 11 and 13.

Furthermore, by changing only the intermediate spacer length (or thickness) according to the change of the tooth angle, stable engagement of the roller gear G2 and the disc combination gear G1 can be easily implemented.

This function can also be enhanced by changing the bending angle of the bend portion 11b of the gear 11a.

In addition, this advantage of the present invention is also able to easily cope with the frame dimensional deviations for each bicycle manufacturer can contribute to ensuring the versatility.

3 shows a variation of various disk combination gears,

[A] is a form of applying a relatively short (or thin) spacer, [B] is a form of applying a relatively long (or thick) spacer ([A] and [B] are both large and small diameter discs Combined gears form a kind of similar crown gear).

[C] is an example in which one disc is composed of three discs combined.

[D] shows that the large diameter disc has a bend and the small diameter disc has no bend,

In [E], both large and small diameter discs have no bent portion.

Next, a power transmission device having a rotation shaft locking means according to the present invention shown in FIGS. 4 and 5 will be described.

The concept of the locking means (L) can be used in various ways for locking a two-wheeled vehicle, such as a motorcycle, motorcycles, or other power transmission rotating shaft,

Hereinafter, it will be described on the assumption that it is applied to the power transmission device (P) for the chainless bicycle for convenience.

In FIG. 4, the first gear G1 provided on the rotating shaft 10S corresponding to the crankshaft connected to the pedal in the power transmission device P for a chainless bicycle is not a disk combination gear of FIGS. 1 to 3 but a similar sprocket. Having a shape, it is optional to apply a disc combination gear as needed.

 Rotating shaft locking means (L) according to the present invention is coupled to the outer shell surrounding the rotating shaft (20S) in the state through the bearing,

By applying a lock using a common key or a known wireless signal lock that is used as a car or an expensive bicycle lock,

It includes a locker which is moved back and forth by manual operation by a key or automatic operation by an electronic key.

The locker is in contact with the engaging projection 20P (see Fig. 5E) formed in the corresponding portion of the rotating shaft 20S to prevent rotation of the rotating shaft 20S.

In Figure 4, the locking means (L) is shown in the form utilizing the solenoid 43 built in the case 47, the wireless receiving unit (or wired receiving unit, if necessary) to energize by applying an operation signal to the solenoid is omitted have.

Case 47 has a built-in each component constituting the electronic locking means (L), the locking means is mounted on the outer shell (27) constituting the relay member (G2R) through this case.

The solenoid 43 embedded in the case 47 becomes a magnetic material when power is applied by a wireless (or wired) signal (remote control by a remote controller will be common).

The magnetic force of this solenoid actuates the spool 45,

The spool operates in a direction opposite to the elasticity of the spring (conical spring in the figure) 43b in operation to advance and lock the locker 41.

In addition, the solenoid 43, the spool 45, and the spring 43B in the case 47 can be kept fixed in place by the cap 43a at the bottom thereof.

4 schematically shows that when the solenoid 43 is not operated in the locking means L, the locker 41 is advanced by the elasticity of the spring 43b, thereby constantly locking the rotation shaft 20S. While shown in contact with the 20P to stay in the locked state,

On the contrary, the elasticity of the spring may be configured such that the locker retracts and is always unlocked when the solenoid is not operated.

In addition, the locking projection (20P) formed at the corresponding position of the rotation shaft 20 is not protruding beyond the outer diameter of the portion of the other rotation shaft, but corresponds to the non-continuous portion of the annular groove (20p) or

(See side view Min "A-A '" in cross section in Fig. 5E),

If necessary, it may be deformed to protrude to the outer surface of the rotation shaft.

In addition, as shown in [A] to [D] of FIG. 5, the locking protrusion 20P of the pivot shaft 20S is one, and the lockers 41 of the locking means are spaced apart from each other by two. You can transform it,

This is to ensure that the locker 41 of one place can be moved to the locked position even if the locking projection 20P of the rotating shaft 20S is in any position.

Through this, when there is one locker and the locking projection of the pivot shaft descends to contact the locker, it is possible to prevent a situation in which the locking function cannot be performed.

In the drawings, the two lockers are provided with respective solenoids 43 and the like,

If necessary, two rockers may be deformed by one solenoid or the like.

As can be seen from [A] [B] [C] of Fig. 5, regardless of the position of the locking projection 20P, locking by at least one locker 41 is realized.

Functions such as prevention of theft and the prevention of safety accidents that may occur when a child rides a bicycle, etc. can be more fully achieved.

In addition, if the locker is locked by the forward movement of the locker,

When the rotating shaft 20S rotates

If there is only one locker and the projection is not in contact with the rocker, the rotation of the rotation shaft may cause the rocker or the rotation shaft to be damaged or worn out (it may lead to breakage due to repeated impact).

In the case of two lockers, the distance between the pivot shaft projection 20P and the rocker is short, so that the impact on the rocker or the pivot may be reduced even in intentional or unintentional operation, thereby preventing damage or wear.

In FIG. 4, reference numeral G3 corresponds to a third gear provided on the rear wheel hub rotation shaft 30S in the chainless bicycle, and is composed of a sprocket 31.

In addition, the second gear (G2a) (G2b) corresponding to the roller gear assembly on both ends of the rotating shaft (20S) of the relay member (G2R) is provided to form an input gear and an output gear, respectively,

Each second gear G2 is composed of a plurality of rollers 25 fixed through shaft pins between the disc shaped first and second supports 21, 23.

Next, as shown in Figure 6, will be described the electric and non-electric power transmission device (P) according to the present invention.

The concept of the electric power transmission device may be applied to a bicycle, in particular, a chainless bicycle or other similar power transmission mechanism, which will be described below in the case where it is also applied to a chainless bicycle.

The electric power transmission device P according to the present invention is basically adapted to be introduced into a relay member G2R as shown in FIG. 4, which is employed to transfer the force of the crank to the rear wheel in an autonomous bicycle.

In [A] and [B] of FIG. 6, such a power transmission device P has a outer pivot 27 as a basic configuration, and a central pivot 20S embedded in a state with a bearing B1 interposed therebetween,

And it is provided at both ends and includes a second gear (G2a) (G2b) corresponding to the roller gear assembly,

The second gear constitutes an input gear and an output gear, respectively.

In addition, as can be seen in Fig. 6C (an enlarged view of the main part of [B]), each of the second gears G2 has an axial pin 25a between the disc shaped first and second supports 21, 23. It consists of a plurality of rollers 25 fixed through.

Meanwhile, the electric unit M which forms the core of the electric and non-electric power transmission device P according to the present invention is made of a rotor 51 and a stator 53 like a normal motor, and the rotor rotates when power is applied. Done.

The rotor 51 surrounds the rotation shaft 20S, and a bearing B2 is interposed therebetween to prevent unnecessary rotation of the rotation shaft with the rotor.

With the input side bearing (B1) provided between the rotating shaft (20S) and the outer shell (27), unlike the normal relay chain power transmission relay member for bicycle power transmission to the bearing (B2) of the electric unit (M) without the output side bearing By this, sufficient support and cloudiness are guaranteed.

Next, the power of the rotor 51 is transmitted to the output gear (G2b) during the operation of the electric unit (M),

At this time, in consideration of the case of moving by pedal pedal on the chainless bicycle, the rotational force is not transmitted to the rotor unnecessarily.

Manual or automatic operation makes the output gear (G2b) pivot only when power is applied.

Optionally, the first clutch 55 to utilize the electric force was introduced.

Furthermore, in order to prevent the rotational force of the rotor from being transmitted when the electric unit (M) is unnecessary, the second clutch, in particular, is provided between the output gear (G2b) and the rotating shaft (20S) to prevent transmission to the rotating shaft (20S) or the pedal. It is preferable to introduce two clutches 57 further.

Such first and second clutches can be implemented by appropriately modifying various known manual or automatic and mechanical or electronic clutches,

The introduction position can be variously modified as necessary.

In the present invention, the electric unit further includes a deceleration means, the power of the rotor 51 is transmitted to the output gear (G2b) via the deceleration means

The problem of low power in the classic low-speed rotation of the general bicycle

It can deliver high power even at low rotation speed, making the motor more efficient and reducing power consumption. It is smaller than the same motor, economical and improves performance.

It is possible to implement an optimal electric bicycle or similar power transmission mechanism.

The deceleration means R shown in [B] and [C] of FIG. 6 includes a rotor R1 connected to the rotor 51 of the electric unit M.

When the planetary unit U is provided in plural, the rotating body R1 corresponds to the first rotating body.

Connection of the rotor and the rotor can be connected by a variety of fastening means, in some cases can be manufactured in one piece.

Planetary gear unit (U) is composed of a sun gear (Us), a planetary gear (Up), and a ring gear (Ur), which is shown in the form provided with two sets.

The sun gear Us is formed on the input side of the rotating body in which the planetary gear Up of the next planetary unit U is fixed by the shaft pin Up1.

Rotating body is provided with three, first to third rotating body (R1) (R2) (R3) in the drawing,

Among them, the second and third rotating bodies R2 and R3 form the planetary unit U.

The planetary gear (Up) of each planetary unit (U) may be provided with three or four usually,

The third rotating body R3 (or a rotating body after the fourth when three or more planetary units are introduced) is connected to the output gear G2b of the second gear G2 through the first clutch 55.

The output gear G2b is a block 20 for the first and second supports 21, 23.

(In consideration of forming a bundle by being integrated or assembled (welding, etc.))

It is connected or disconnected through the first clutch 55 at the connecting portion 20a of the.

Due to the precise engagement of the ring gear Ur and the planetary gear Up and the planetary gear Up and the sun gear Us connected to the shell 27

Each of the rotating bodies R1, R2, and R3 can maintain a constant distance from the center pivot 20S, so that friction is prevented.

Each planetary gear (Up) of the planetary unit (U) forming the deceleration means (R),

The third rotating body R3, the first and second clutches 55 and 57, and the second gear G2b block 20 are

It is enclosed by the first and second housings H1 and H2, which are interconnected, respectively, to facilitate assembly and maintenance.

A ring gear Ur is formed on an inner surface of the first housing H1, and the first housing H1 is connected to the outer shell 27.

In addition, in Fig. 6B, the inner space on the right side of the outer shell 27 is empty because it is inappropriate for the length of the electric unit M to be unnecessarily long.

If necessary, the electric unit (M) is extended and filled,

An oil-related configuration or a clutch configuration may be added to the empty space.

In the above description, the conventionally known techniques related to the chainless bicycle or the manual or automatic operation locking device, the planetary unit or the electric unit, the clutch, and the like are omitted, but those skilled in the art can easily infer, infer, and reproduce them.

In addition, in the above description of the present invention, the gear and power transmission device having a specific shape and structure has been described with reference to the accompanying drawings. However, the present invention can be variously modified, changed, and replaced by those skilled in the art, and such modifications and changes are possible. And substitutions should be interpreted as falling within the protection scope of the present invention.

1 is a part view and an assembly view associated with a disc combination gear according to the invention.

Figure 2 is a schematic diagram of a power transmission device using a disk combination gear according to the present invention.

3 is a schematic diagram of various variants of a disc combination gear according to the invention;

Figure 4 is a plan view of the coupled state of the power transmission device with a rotating shaft locking means according to the present invention.

5 is a main view of a power transmission device having a rotational shaft locking means according to the present invention.

Figure 6 is a view of the electric and non-electric combined power transmission device according to the present invention.

<Explanation Table of Symbols for Main Parts of Drawing>

Disk Combination Gear G1 First disc 11 Gear 11a bend 11b hollow 11c idle prevention 11d Second Disc 13 Gear 13a bend 13b hollow 13c idle prevention 13d Spacer 15 Rotating shaft 10S 2nd Gear G2 First support 21 Input gear G2a Second Support 23 Block 20 connection 20a  Output gear G2b Roller 25 Coaxial 20 S Obstruction 20P Round Groove 20p Jacket 27 Bearing B1 Third gear G3-driven Sprockets 31 Rotating shaft 30S Locking means L Rocker 41 Solenoid 43 Cap 43a Spool 45 Spring 43b Case 47 Electric Unit M Rotor 51 Bearing B2 Stator 53 First clutch 55 Reduction means R First rotating body R1 Planetary unit U Planetary Gear Up-Shaft Pin Up1 Solar Gear Us Ring Gear Ur 2nd rotating body R2 3rd rotating body R3 Second clutch 57

Claims (4)

A plurality of disks having a repetitive tooth in the rim and between the disks Disc assembly gear comprising a spacer for spaced fixing. The method of claim 1, The disk combination gear, characterized in that the disk is different in size. The method according to claim 1 or 2, Part or all of the disk is a disk combination gear, characterized in that the gear portion is bent. Interlocking with the gear of the disk combination first gear and the disk combination gear comprising a plurality of disks having a repetitive tooth on the rim, a spacer for spaced separation between the disks, and a disk and a rotating shaft on which the spacers are fixed; A power transmission device comprising a second gear forming a shaft gear.

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