TWI806560B - A bicycle that can be pedaled forward and reverse - Google Patents

Abstract

This creation is a bicycle that can be pedaled forward and reverse, which includes a transmission group, a front derailleur device and a base plate; the transmission group includes forward gears, reverse gears, multiple steering gears, rear gears and chains; forward gears and The counter gears are arranged coaxially and can be driven by the pedal assembly to rotate; each steering gear meshes with the counter gears; the chain sleeve meshes with the rear gear and can be moved by the front derailleur to engage with the forward gear or sleeve mesh A plurality of steering gears, the base plate can be fixed on the car body, and a plurality of shafts are set upright, and the corresponding shafts are sleeved in the center of each steering gear; through the settings of forward gears, reverse gears and steering gears, The bicycle can be moved forward by pedaling in reverse, which can be used to train different muscle groups, activate the brain, and reduce the risk of dementia.

Description

A bicycle that can be pedaled forward and reverse

This invention relates to a bicycle, especially a bicycle that can be pedaled forward and backward.

Bicycle is a kind of common means of transportation. By stepping on the pedals, the user drives the wheels to rotate with a chain transmission, so that the bicycle can move forward.

In recent years, reverse activities have become more and more common. It is common to see people walking backwards on the sports field, or some medical professionals suggest that they can read and recite the text they see backwards. Behavior requires more concentration, activates the brain, and reduces the risk of dementia.

However, most of the existing bicycles can only step on the pedals in one direction to make the wheels turn forward. When exercising by cycling for a long time, because the pedals are always stepped on in the same direction, not only the muscles that can be trained are limited, but also boring. It is a pity that the effect of preventing dementia cannot be achieved by stepping on the pedals in the opposite direction and riding a bicycle forward.

In view of the fact that the existing bicycles can only step on the pedals in one direction to make the wheels turn forward, and the effect of preventing dementia cannot be achieved by stepping on the pedals in the opposite direction. The purpose of this invention is to provide a bicycle that can be stepped forward and backward.

The invention solves technical problems and proposes a bicycle that can be pedaled forwards and backwards, which includes: a transmission group, which includes a forward gear, which is used to be driven by two pedal assemblies to rotate; A reverse stepping gear, which is arranged coaxially with the forward stepping gear, and is used to be driven by the two pedal assemblies to rotate; a plurality of steering gears, each of which is meshed with the reverse stepping gear; a rear gear, which is used for A rear wheel rotates synchronously; and a chain, which is sheathed and meshed with the rear gear; a base plate, the base plate is used to be fixed on a vehicle body, and a plurality of shaft columns are vertically provided on one surface of the base plate, each of the The steering gear is axially provided with a through hole in the middle position, and the plurality of steering gears are respectively sleeved with a plurality of the shaft columns through the hole, so that each of the steering gears can rotate with the corresponding shaft column as the axis; And a front derailleur device, the front derailleur device can move the chain to engage with the stepping gear or sleeve to engage with the plurality of steering gears.

In the bicycle that can be pedaled in forward and reverse directions, the plurality of steering gears are three steering gears, and the circumscribed circles of the three base circles of the three steering gears overlap with the base circle of the forward pedaling gear.

The effect of the technical means of this creation can be improved: the bicycle that can be pedaled forward and reverse in this creation, through the forward gear, the reverse gear and the plurality of steering gears, allows the user to operate in the normal mode and the reverse direction. Switch between pedaling modes. In the normal mode, the front derailleur device moves the chain sleeve to engage the forward gear, and the user can step on the pedals in the forward direction as usual when riding a bicycle to move forward; in the reverse pedaling mode, the front derailleur The chain device moves the chain to engage the plurality of steering gears, and the user needs to step on the pedals in the opposite direction to make the bicycle that can be pedaled forward and reverse forward; when the creation is switched to the normal mode, it can be used as a general It can be used as a bicycle, and when switched to the reverse pedaling mode, it can be used as a special fitness equipment to train different muscle groups, activate the brain, and reduce the risk of dementia. Compared with existing bicycles, it is more flexible in use .

10: base plate

11: shaft column

20: stepping on the gear

30: step on the gear in reverse

40: Steering gear

50: rear gear

60: chain

7: Front derailleur device

8: Pedal assembly

9: Transmission group

100: binding column

Fig. 1 is the exterior view of the preferred embodiment of this creation.

Fig. 2 is the structural representation of the transmission group of the preferred embodiment of this creation.

Fig. 3 is the partial structural representation of the transmission group of the preferred embodiment of this creation.

Fig. 4 is the top view of the use state of the transmission group of the preferred embodiment of the present invention.

Fig. 5 is the top view of another use state of the transmission group of the preferred embodiment of the present invention.

Fig. 6 is the use status diagram of the preferred embodiment of this creation.

Fig. 7 is another usage status diagram of the preferred embodiment of the present invention.

In order to understand the technical characteristics and practical effects of this creation in detail, and to realize it according to the content of the creation, the preferred embodiment shown in the figure is further described in detail as follows: As shown in Figure 1, this creation is preferably The bicycle that can step forward and reversely in the embodiment includes a vehicle body, a front wheel, a rear wheel, a front derailleur device 7, two pedal assemblies 8 and a transmission group 9, as shown in Figures 1 and 2, The transmission group 9 includes a base plate 10 , a forward gear 20 , a reverse gear 30 , three steering gears 40 , a rear gear 50 , and a chain 60 .

As shown in Figure 1, the base plate 10 is disc-shaped and fixed on the vehicle body; as shown in Figure 2, the forward stepping gear 20 and the reverse stepping gear 30 are arranged coaxially, and can be supported by the two pedal assemblies. 8 is driven to rotate, as shown in Figure 4 and Figure 5 with Figure 2, in this preferred embodiment, a coupling column 100 is used to penetrate the center position of the forward stepping gear 20 and the reverse stepping gear 30, and make The forward stepping gear 20 and the reverse stepping gear 30 are combined with the coupling column 100 to rotate synchronously. The coupling column 100 is rotated to make the forward stepping gear 20 , the reverse stepping gear 30 and the coupling column 100 rotate synchronously. In addition, a through hole for the coupling column 100 is formed in the center of the base plate 10 .

As shown in Figures 2 to 5, each of the steering gears 40 meshes with the reverse stepping gear 30; Three shaft columns 11 are provided, and the three steering gears 40 are respectively provided with the three shaft columns 11 through holes, and each of the steering gears 40 can rotate with the shaft center 11; as shown in Figure 1, the rear gear 50 is coaxially connected with the rear wheel, and can rotate synchronously with the rear wheel; as shown in Figure 2, the chain 60 is sheathed and engaged with the rear gear 50, and as shown in Figure 4 and Figure 5, the chain 60 can Moved by the front derailleur device 7, the stepping gear 20 or the three steering gears 40 are sheathed and engaged.

In this preferred embodiment, the bicycle that can be pedaled forward and reverse includes three steering gears 40, but in fact, as long as the bicycle that can be pedaled forward and reverse includes a plurality of steering gears 40, each of the steering gears The gear 40 meshes with the reverse stepping gear 30, and the chain 60 can be moved by the front derailleur device 7 to sleeve and mesh with the plurality of steering gears 40, and the number of the steering gears 40 is not limited by this preferred embodiment In this preferred embodiment, as shown in Figure 2, the central points of the three steering gears 40 are distributed on the half side of the base plate 10 that is relatively far away from the rear gear 50, and the three base circles of the three steering gears 40 The circumscribed circle of and the base circle of the stepping gear 20 overlap.

In addition, other detailed structures of the bicycle that can be pedaled forward and reverse in this preferred embodiment are known technologies in the field of bicycles, and will not be repeated here.

The bicycle that can be pedaled forward and backward in this creation can be divided into a normal mode and a reverse pedaling mode for use; in the normal mode, as shown in Figure 4, the chain 60 is set and meshed with the forward gear 20, As shown in Figure 6 with Figure 4, when the bicycle rider steps on the two pedal assemblies 8 in the clockwise direction of Figure 6, that is, when riding a normal bicycle forward, it will drive the stepping gear 20 to rotate clockwise, and the chain 60 circles clockwise thereupon, and drives this rear gear 50 to make this rear gear 50 rotate clockwise synchronously with described rear wheel, and the bicycle that this can forward and reverse stepping forward just can move forward thereupon.

In the reverse pedaling mode, as shown in FIG. 5, the chain 60 is sheathed and engaged with the three steering gears 40. When the bicycle rider steps on the two pedal assemblies 8 in a clockwise direction as shown in FIG. The counter-stepping gear 30 rotates clockwise, and the three steering gears 40 meshed with the counter-stepping gear 30 will rotate in the opposite direction with the counter-stepping gear 30, that is, rotate counterclockwise as shown in Figure 7, causing the chain 60 to drive the rear The gear 50 rotates counterclockwise synchronously with the rear wheel, which instead causes the bicycle, which can be pedaled forward and backward, to go backward; therefore, in the reverse pedaling mode, the two pedal assemblies 8 need to be pedaled counterclockwise as shown in FIG. 7 , Drive this anti-stepping on gear 30 to rotate counterclockwise, at this moment, as shown in Figure 3, these three steering gears 40 that mesh with this anti-stepping on gear 30 can be driven by this anti-stepping on gear 30 and reverse with this anti-stepping on gear 30 Rotate, that is, rotate in the clockwise direction of Figure 7, the chain 60 will circle clockwise thereupon, and drive the rear gear 50 to make the rear gear 50 rotate clockwise synchronously with the rear wheel, so that the positive and negative Only when the bicycle is pedaling forward can it move forward as in normal mode.

Through the above-mentioned technical features, this creation has the following effect gains: the bicycle that can be pedaled forward and backward in this creation, through the forward gear 20, the reverse gear 30 and the plurality of steering gears 40, allows the user to move forward in the normal direction. In the normal mode, when the chain 60 is set to mesh with the forward gear 20, the user can move forward by stepping on the pedals in the forward direction as usual when riding a bicycle; in the reverse pedaling mode, the chain 60 sets If the plurality of steering gears 40 are engaged, the user will step on the pedals in the opposite direction to make the bicycle that can be stepped forward and reversely move forward; when the invention is switched to the normal mode, it can be used as a general bicycle. In reverse pedaling mode, it can be used as special fitness equipment to train different muscle groups, activate the brain, and reduce the risk of dementia.

The above is only a preferred embodiment of this creation, and does not limit this creation in any form. Anyone with ordinary knowledge in the technical field can use this creation without departing from the scope of the technical solutions proposed in this creation. Creation of equivalent embodiments with partial changes or modifications made to the disclosed technical content, and without departing from the content of the technical solution of the creation, all still fall within the scope of the technical solution of the creation.

11: shaft column

20: stepping on the gear

30: step on the gear in reverse

40: Steering gear

50: rear gear

60: chain

Claims (2)

A bicycle capable of forward and reverse pedaling, which includes: a transmission group, which includes a forward gear, which is used to be driven by two pedal assemblies to rotate; a reverse gear, which is arranged coaxially with the forward gear , and is used to be driven by two pedal assemblies to rotate; a plurality of steering gears, each of which is meshed with the reverse pedal gear; a rear gear, which is used to rotate synchronously with a rear wheel; and a chain, which is sheathed Mesh the rear gear; a base plate, the base plate is used to be fixed on a vehicle body, one of the surfaces of the base plate is vertically provided with a plurality of shaft columns, each of the steering gears is axially provided with a through hole in the middle position, and the plurality of The steering gear is respectively sleeved with a plurality of the shaft columns through the through holes, so that each of the steering gears can rotate with the corresponding shaft column as the axis; and a front derailleur device, the front derailleur device can dial The chain is moved to engage the stepping gear or the chain is engaged to engage the plurality of steering gears. The bicycle that can be pedaled forward and backward as described in claim 1, wherein the plurality of steering gears are three steering gears, the circumscribed circle of the three base circles of the three steering gears and the base circle of the forward gear overlapping.

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