TWI579197B - Can be stepped on the control of electric lift the big fly wheel reversing the device - Google Patents

Description

A device that can reverse the control of the large flywheel reversing of the electric bicycle

The invention relates to a device for reversing the large flywheel reversing of an electric bicycle, especially an innovative stepping device and a large flywheel for reversing the electric vehicle and maintaining the electric energy and manpower conversion. Inverted device.

Electric bicycles and walking vehicles have been derived from the relationship between urbanization and the change in traffic patterns.

Referring to the fourth figure, the conventional electric bicycle has the following two driving modes:

[a] Power drive mode: When a motor 81 is driven, power is transmitted from the motor 81 to a first 11-toothed gear 81A, and the first 11-toothed gear 81A drives a 43-toothed gear 81B, which is driven by a 43-toothed gear 81B. The second 11-tooth gear 81C drives a 61-tooth gear 81D that drives a large flywheel disk 93.

[b]Human drive mode: When the foot is stepped on a pedal 82, the power is driven by the pedal 82 to drive a 42-toothed ring gear 82A, and the 42-toothed ring gear 82A drives a 9-toothed gear 82B, which is driven by a 9-toothed gear 82B. The 24-tooth gear 82C is further driven by the 24-tooth gear 82C.

However, as technology changes with each passing day, and as the market and living environment change, in Europe, users are accustomed to using the inverted brake system as the main brake braking method. The important point is that in the electric bicycles currently on the market, the toothed disc cannot drive the large flywheel to reverse the rotation when it is reversed (the brake drum can be reversed to generate the brake function).

In addition, the aforementioned European bicycle users are accustomed to using a reverse brake system (not shown), also known as a "coaster brake", that is, controlled by the bicycle user's foot. The brakes produce the function of a brake. It is a well-known technique and its structure is not described here.

The control of the inverted brake system is divided into electronic control and mechanical control. Most of the patent documents are electronically controlled. The reason is that the electronic control is more difficult to design than the mechanical control, and it is not easy to break through.

In view of this, it is necessary to develop a technique that can solve the above disadvantages.

The object of the present invention is to provide a device for reversing the large flywheel reversing of an electric bicycle, which has the advantages of an innovative stepping device and maintaining electric energy and manpower conversion. In particular, the problem to be solved by the present invention is that the conventional electric bicycle cannot control the design of the large flywheel following the reverse rotation by stepping on the pedal.

The technical means for solving the above problem is to provide a device for reversing the large flywheel reversing of the electric bicycle, comprising: a casing for being disposed on an electric bicycle, the electric bicycle comprising a front wheel, a rear wheel, a large flywheel disk and a chain; the chain is coupled between the rear wheel and the large flywheel disk, wherein the large flywheel disk drives the rear wheel, the large flywheel disk has a drive shaft housing having a transmission engaging portion; an electric power transmission portion is disposed on the electric bicycle, and includes: a gear set disposed inside the casing, and between a transmission engagement state and a transmission separation state Transform, and separately drive and retreat from the large flywheel; a motor coupled to drive the gear set; a first clutch device disposed between the gear set and the large flywheel for controlling the gear set between the transmission engaged state and the transmission separated state a human power transmission unit is disposed on the electric bicycle, and includes: a pedal, which is disposed in the transmission shaft shell and can be changed between the stepping and the stepping; a second clutch device, Between the foot and the large flywheel, and between the combination and the separation, whereby when the pedal is stepping, the combination can drive the large flywheel, and then through the chain Driving the rear wheel to drive the electric bicycle to travel; and when the pedal is stepped down, the separation is unable to drive the large flywheel, the pedal is idling; a reverse step is provided The electric walker includes: a carrier set coupled between the pedal and the electric walker, and switchable between an idle state and a transmission state; a first reverse clutch device is disposed at the Between the planet carrier group and the electric bicycle, when the pedal is stepped on The carrier group is relatively fixed to the electric driving workshop to change the carrier group from the idling state to the transmission state; a second reverse clutch device is disposed between the carrier group and the large flywheel disk The second reverse clutch device includes: a clutch member coupled to and coupled by the carrier group; a clutch portion having a movable clutch member and a transmission tooth member; when the first reverse clutch device is When the idling state is changed between the idling state and the transmission state, the movable clutch member and the clutch member are changed between the relative engagement state and the relative retreat state; In the retracted state, the movable clutch member is in mesh with the transmission engaging portion of the transmission shaft housing through the transmission tooth portion, and the large flywheel is reversely coupled.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein.

The invention will be described in detail in the following examples in conjunction with the drawings:

10‧‧‧shell

20‧‧‧Power Transmission Department

21‧‧‧ Gear Set

211‧‧‧First bevel gear

212‧‧‧Second bevel gear

213‧‧‧First gear

214‧‧‧second gear

22, 81‧‧ ‧ motor

23‧‧‧First clutch device

30‧‧‧Human Transmission Department

31, 82‧‧‧ pedal

32‧‧‧Second clutch device

40‧‧‧Inverted and reversed

41‧‧‧ planet carrier

411‧‧‧ring gear

412‧‧‧ planet arm

413‧‧‧ planetary gear

414‧‧‧Sun Gear

42‧‧‧First reverse clutch device

43‧‧‧Second reverse clutch device

431‧‧‧ clutches

432‧‧‧Clutch Department

43A‧‧‧ Activity clutch

43B‧‧‧Transmission gear

43C‧‧‧Reset elastic parts

81A‧‧‧First 11 tooth gear

81B‧‧‧43 tooth gear

81C‧‧‧Second 11-tooth gear

81D‧‧61 gear gear

82A‧‧‧42 toothed ring gear

82B‧‧9 gears

82C‧‧‧24 tooth gear

90‧‧‧Electric bicycle

91‧‧‧ front wheel

92‧‧‧ Rear wheel

93‧‧‧Great flywheel

931‧‧‧Drive shaft housing

93A‧‧‧Drive Engagement Department

94‧‧‧Chain

D1‧‧‧first distance

D2‧‧‧Second distance

D3‧‧‧ third distance

W1‧‧‧ initial entry distance

W2‧‧‧Complete card distance

The first figure is a schematic diagram of the power transmission mode of the present invention.

The second figure is a schematic diagram of the human power transmission mode of the present invention.

The third figure is a schematic diagram of the pedaling reverse rotation mode of the present invention.

The fourth picture is a schematic diagram of a conventional device

The fifth picture is a schematic diagram of the application of this creation to an electric bicycle.

The sixth figure is a schematic diagram of other angles of the fifth figure.

The seventh picture is a schematic diagram of the main structure of the creation.

The eighth figure is a partial cross-sectional view of the seventh figure

The ninth figure is a schematic diagram of the second reverse clutch device of the eighth figure

The tenth figure is a schematic diagram of the components corresponding to the main structure of the ninth figure.

The eleventh A, the eleventh B and the eleventh C are respectively a schematic diagram of the relative engagement state, the relative retreat, and the relative retreat state of the second reverse clutch device.

Referring to the first figure, the present invention is a device for reversing the large flywheel reversing of an electric bicycle, comprising: A housing 10 (see seventh, eighth, ninth and tenth views) is provided on an electric bicycle 90 (see fifth and sixth figures), the electric bicycle 90 including a front wheel 91 a rear wheel 92, a large flywheel disk 93 and a chain 94; the chain 94 is coupled between the rear wheel 92 and the large flywheel disk 93, and the large flywheel disk 93 drives the rear wheel 92, the large flywheel The disk 93 has a transmission shaft housing 931 having a transmission engaging portion 93A (having a plurality of groove portions formed on the inner surface); an electric power transmission portion 20 for being disposed on the electric bicycle 90 And including: a gear set 21, is disposed inside the casing 10, and can be changed between a transmission engagement state and a transmission separation state, and can respectively drive and retreat from the large flywheel disk 93; a motor 22, Is coupled to drive the gear set 21; a first clutch device 23 is disposed between the gear set 21 and the large flywheel disk 93 for controlling the gear assembly 21 in the transmission engagement state and the transmission separation state A human power transmission unit 30 is disposed on the electric bicycle 90 and includes: a pedal 31 that is worn through The drive shaft housing 931 can be changed between the front step and the reverse step; a second clutch device 32 is disposed between the pedal 31 and the large flywheel disc 93, and is transformed between the combination and the separation. Thereby, when the pedal 31 is stepping on, the large flywheel disk 93 can be driven to transmit the rear wheel 92 through the chain 94 to drive the electric walker 90 to travel; and when the pedal 31 is When the vehicle is stepped on, the large flywheel disk 93 is disengaged, and the pedal 31 is idly rotated; a reverse stepping portion 40 is disposed on the electric bicycle 90, and includes: a planet carrier group 41, Connected between the pedal 31 and the electric walker 90, and can be switched between an idle state and a transmission state; A first reverse clutch device 42 is disposed between the carrier group 41 and the electric bicycle 90. When the pedal 31 is stepped on, the carrier group 41 is interlocked with the electric bicycle 90. Fixed to change the carrier group 41 from the idling state to the transmission state; a second reverse clutch device 43 is disposed between the carrier group 41 and the large flywheel disk 93; the second reverse clutch device 43 The system includes (see the tenth figure): a clutch member 431 is coupled and coupled by the carrier group 41; a clutch portion 432 has a movable clutch member 43A and a transmission tooth member 43B; When the clutch device 42 is changed between the idling state and the transmission state, the movable clutch member 43A and the clutch member 431 are in a relative engagement state (as shown in FIG. 11A) and a relative retreat state ( As shown in FIG. 11C, the movable clutch member 43A is in mesh with the transmission engaging portion 93A of the transmission shaft housing 931 through the transmission tooth portion 43B when in the relatively retracted state. The large flywheel disk 93 is reversed.

In practice, the gear set 21 includes a first bevel gear 211, a second bevel gear 212, a first gear 213, and a second gear 214; the gears are sequentially meshed with each other.

The first bevel gear 211 can be an 11-toothed bevel gear; the second bevel gear 212 can be a 43-toothed bevel gear; the first gear 213 can be an 11-tooth gear; the second gear 214 can be 61 teeth gear.

The first clutch device 23 can be a one-way bearing structure.

The second clutch device 32 can be a one-way bearing structure.

The carrier set 41 includes a ring gear (72 teeth) 411 and a planet arm (18). a tooth 412, a plurality of planet gears 413 and a sun gear (36 teeth) 414: the first reverse clutch device 42 is interposed between the planet arm 412 and the electric bicycle 90; the second reverse clutch device 43 is interposed between the sun gear 414 and the large flywheel disk 93; the plurality of planetary gears 413 are meshed between the ring gear 411 and the sun gear 414, respectively.

The first reverse clutch device 42 can be a one-way bearing structure.

The clutch member 431 is coaxially coupled to the sun gear 414.

The clutch portion 432 has the movable clutch member 43A, the transmission tooth member 43B and a return elastic member 43C. The return elastic member 43C is interposed between the transmission tooth member 43B and the transmission engagement portion 93A for topping. Pushing the transmission gear member 43 normally away from the transmission engaging portion 93A, and when the movable clutch member 43A and the transmission tooth portion 43B start to retreat relatively, the transmission tooth portion 43B compresses the elastic return member 43C. Further, the drive engagement portion 93A of the drive shaft housing 931 is in mesh with each other.

The invention has the following three modes of use:

[a] Power transmission mode: Referring to the first figure, the motor 22 is activated, and the first clutch device 23 is changed from the original transmission separation state to the transmission engagement state, and the motor 22 can drive the large flywheel disk 93 to rotate and then transmit The chain 94 drives the rear wheel 92; the electric bicycle 90 is driven to advance by the output of the motor 22.

At this time, the first reverse clutch device 42 is not in contact with the electric walker 90, and the carrier group 41 is substantially idling, so that the second reverse clutch device 43 cannot push the combination, and the reverse step reverse portion 40 is caused. It is not possible to push the pedal 31 to reverse the push of the large flywheel 93, so that the motor 22 is not driven to drive the electric walker 90 forward.

[b]Human power transmission mode: Referring to the second figure, when the pedal 31 is stepped on, the second clutch device 32 is changed from the original pedal transmission separation state to the pedal transmission engagement state. The pedal 31 can drive the large flywheel disk 93 to rotate, thereby driving the chain 94 to drive the rear wheel 92 to drive the electric bicycle 90 to be driven by the pedal 31.

At this time, the first clutch device 23 is shifted to the transmission disengaged state, so the motor 22 is idling, and the first reverse clutch device 42 controls the carrier group 41 to be in an idling state.

What is particularly pointed out here is that, basically speaking, when the power transmission mode is performed, the manual transmission mode can still be performed, but the human power transmission is basically not faster than the power transmission mode, so the power transmission mode is still the main transmission. And when the pedal is stepped on 31, it is idling. This is a well-known technique, which is not the focus of this case.

[c] Footstep reverse rotation mode: Referring to the third, eighth and ninth figures, when the pedal 31 is stepped on, the pedal 31 pushes the ring gear 411 → the first reverse clutch device 42 reverses The planetary arm 412 and the electric walker 90 are fixed to each other without being rotated. The first reverse clutch device 42 controls the planetary carrier group 41 to change from the idling state to the transmission state. The ring gear 411 is stepped on with the pedal. The reverse rotation pushes the plurality of planetary gears 413 in reverse → the plurality of planetary gears 413 reversely pushes the sun gear 414 to rotate forward → the sun gear 414 interlocks the clutch member 431 (as shown in FIG. 11A, the clutch The piece 431 is in a relative engagement with the movable clutch member 43A with a first distance d1 therebetween, which is 0) → the clutch member 431 pushes the movable clutch member 43A (as shown in FIG. 11B, the clutch member 431) Between the movable clutch member 43A and the movable clutch member 43A is increased to a second distance d2, which is greater than the first distance d1)→ the transmission gear member 43B (synchronously compressing the return elastic member 43C) is initially engaged to engage the transmission engagement portion. 93A - initial entry distance W1 → continue to step on the pedal 31 → the clutch member 431 continues to push open The movable clutch member 43A (as shown in FIG. 11C, the clutch member 431 and the movable clutch member 43A are in a relatively retracted state, and are increased to a third distance d3, which is greater than the second distance d2) → The transmission tooth member 43B is completely engaged with the drive engagement portion 93A and fully engaged by the distance W2 → The pedal 31 is reversed to drive the large flywheel 93 to reverse.

As for the stepping of the pedal 31, the large flywheel 93 is reversed, and the rear wheel 92 is further braked by a conventional carrier brake (not shown) mounted on the rear axle.

The part to be specially explained here is that the device for starting the brake by stepping on the pedal 31 is a technical device known to the relevant industry. The key non-brake device in this case is a mechanical, electromagnetic or mechanical combined electromagnetic device. It is to be noted that the focus of this case is how to enable the pedal 31 to reverse the large flywheel 93 when the pedal 31 is stepped on, and then brake the rear wheel 92 by reversing the large flywheel 93 ( For example, the brake of the rear wheel 92 is driven by the stringer 94 as an example.

The advantages and functions of the present invention are as follows:

[1] Innovative reverse step control large flywheel reversing device. The invention is provided with a reverse step reversing portion. When the pedal is reversely stepped on, the ingenious design of the planetary carrier group, the first reverse clutch device and the second reverse clutch device can be reversely driven, and the large flywheel disk is quite innovative.

[2] Maintain electrical energy and manpower transformation. The invention provides a design of a first clutch device and a second clutch device. The transformation of the electric energy transmission and the human power transmission can be separately controlled. Therefore, to maintain the conversion of electrical energy and manpower.

The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.

10‧‧‧shell

20‧‧‧Power Transmission Department

21‧‧‧ Gear Set

211‧‧‧First bevel gear

212‧‧‧Second bevel gear

213‧‧‧First gear

214‧‧‧second gear

22‧‧‧Motor

23‧‧‧First clutch device

30‧‧‧Human Transmission Department

31‧‧‧ pedal

32‧‧‧Second clutch device

40‧‧‧Inverted and reversed

41‧‧‧ planet carrier

411‧‧‧ring gear

412‧‧‧ planet arm

413‧‧‧ planetary gear

414‧‧‧Sun Gear

42‧‧‧First reverse clutch device

43‧‧‧Second reverse clutch device

90‧‧‧Electric bicycle

93‧‧‧Great flywheel

94‧‧‧Chain

Claims (9)

The utility model relates to a device for reversing the control of a large flywheel reversing of an electric bicycle, comprising: a casing for being arranged on an electric bicycle, the electric bicycle comprising a front wheel, a rear wheel and a large flywheel And a chain coupled between the rear wheel and the large flywheel disk, wherein the large flywheel disk drives the rear wheel, the large flywheel disk has a drive shaft housing having a drive engagement portion; The transmission part is configured to be disposed on the electric bicycle, and includes: a gear set, which is disposed inside the casing and can be changed between a transmission engagement state and a transmission separation state, and can be respectively driven and retracted a large flywheel disk; a motor coupled to drive the gear set; a first clutch device disposed between the gear set and the large flywheel disk for controlling the gear set in the transmission engagement state The transmission is separated from the state of separation; a human power transmission unit is disposed on the electric bicycle, and includes: a pedal, which is disposed in the transmission shaft shell and can be changed between the stepping and the stepping; a second clutch device is provided on the pedal and Between the large flywheels and between the combination and the separation, whereby when the pedal is stepping on, the large flywheel is coupled to drive the rear wheel through the chain to drive the The electric bicycle travels; and when the foot is stepped on, the motor is separated and cannot drive the large flywheel, and the pedal is idling; a reverse step is provided on the electric bicycle, and includes: a planet carrier group is coupled between the pedal and the electric bicycle, and is switchable between an idle state and a transmission state; a first reverse clutch device is disposed on the planet carrier group and the electric bicycle between, When the pedal is stepped on, the carrier group is relatively fixed to the electric driving workshop, so that the carrier group is changed from the idling state to the transmission state; and a second reverse clutch device is disposed on the carrier. The second reverse clutch device includes: a clutch member coupled to and coupled by the carrier group; a clutch portion having a movable clutch member and a transmission tooth member; When the first reverse clutch device changes between the idling state and the transmission state, the movable clutch member and the clutch member are changed between the relative engagement state and the relative retreat state; When the state is off, the movable clutch is engaged with the transmission engaging portion of the transmission shaft shell through the transmission tooth portion, and the large flywheel is reversely coupled. The device for reversing the large flywheel reversing of the electric walker according to the first aspect of the invention, wherein the gear set comprises a first bevel gear, a second bevel gear, and a first gear And a second gear; the foregoing gears are meshed with each other in sequence. The device for reversing the large flywheel of the electric bicycle according to the second aspect of the patent application, wherein: the first bevel gear is an 11-toothed bevel gear; and the second bevel gear is 43 a bevel gear; the first gear train is an 11-tooth gear; the second gear train is a 61-tooth gear. The device for reversing the large flywheel of the electric bicycle according to the first aspect of the invention, wherein the first clutch device is a one-way bearing structure. The large flywheel reversal of the electric bicycle can be reversed as described in the first paragraph of the patent application. The device, wherein the second clutch device is a one-way bearing structure. The device for reversing the large flywheel of the electric bicycle according to the first aspect of the invention, wherein the first reverse clutch device is a one-way bearing structure. The device for reversing the large flywheel reversing of the electric walker according to the first aspect of the invention, wherein: the carrier assembly comprises a ring gear, a planetary arm, a plurality of planetary gears and a sun gear; a first reverse clutch device is interposed between the planetary arm and the electric bicycle; the second reverse clutch device is interposed between the sun gear and the large flywheel; the plurality of planetary gears are respectively meshed with Between the ring gear and the sun gear. The apparatus for reversing the large flywheel of the electric walker according to the seventh aspect of the invention, wherein the clutch is coaxially coupled to the sun gear. The apparatus for reversing the large flywheel of the electric bicycle according to the first aspect of the invention, wherein the clutch has the movable clutch, the gear member and a return elastic member, the reset elasticity a member is interposed between the transmission tooth member and the transmission engaging portion for pushing up to keep the transmission tooth member normally retracted from the transmission engagement portion, and when the movable clutch member and the transmission tooth portion start to be opposite Retracting, the drive tooth portion compresses the elastic return member to intermesh with the drive engagement portion of the drive shaft housing.