WO2013044818A1

WO2013044818A1 - Handlebar-free steering mechanism for reversed three-wheel/four-wheel bicycle

Info

Publication number: WO2013044818A1
Application number: PCT/CN2012/082120
Authority: WO
Inventors: 贾鲁铭
Original assignee: Jia Luming
Priority date: 2011-09-28
Filing date: 2012-09-27
Publication date: 2013-04-04
Also published as: CN102285405A; CN102285405B

Abstract

Disclosed in the present invention is a handlebar-free steering mechanism for a reversed three-wheel/four-wheel bicycle comprises: a bearing base (3) which is arranged in the middle of a transverse shaft (4) of the bicycle; a bearing or bearing bush (3-1) which is located in the bearing base (3) and is matched with the front end of a longitudinal shaft (2) with a bicycle seat (1); a steering assembly which is connected to the longitudinal shaft (2) of the bicycle; a connecting cross rod (7) which is controlled by the steering assembly; two steering shaft bases (12) which are located at two ends of the transverse shaft (4) and are integrally connected with the transverse shaft (4); and two steering shafts (11) which are respectively located in the two steering shaft bases (12) and are integrally connected with two front wheel shafts (13) of the bicycle. Two steering shaft pins (11-1) are respectively inserted in the two steering shaft bases (12) and shaft holes of the two steering shafts (11) and are fixed on the two steering shaft bases (12) through connectors. The two steering shafts (11) rotate relative to the two steering shaft pins (11-1). One end of two steering arms (9) is respectively hinged with two ends of the connecting cross rod (7), while the other end of the two steering arms (9) is respectively integrally connected with the corresponding steering shafts (11). Steering is controlled without the need of the human hand during riding.

Description

Inverted three-wheeled, four-wheeled bicycle without handlebar steering mechanism

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a steering mechanism for a bicycle, and more particularly to a steering mechanism for a reverse three-wheel, four-wheel bicycle without a handlebar.

BACKGROUND OF THE INVENTION Existing three-wheeled bicycles, whether in the case of a positive three-wheel or a three-wheeled bicycle, are controlled by the hand holding the handlebar for steering control of the vehicle, pushing the bicycle with two feet to advance (forward or backward), or disabled A hand-operated tricycle for people. This three-wheeled bicycle is not suitable for people with disabilities. At present, the manpower driven vehicles used by disabled people have low walking efficiency and are not labor-saving.

Summary of the invention:

The object of the present invention is to provide a method for controlling the steering with two hands or one hand during riding, so that it is possible to perform work with both feet and hands at the same time, and it is also possible to perform alternate work of hands and feet, for bicycle riding. Fans can provide a new way of riding and can also be used for two-wheeled or four-wheeled bicycles with no handlebar steering mechanism for people with disabilities on both feet or hands.

The object of the invention is achieved in this way:

The inverted three-wheeled, four-wheeled bicycle without handlebar steering mechanism comprises a bearing seat mounted in the middle of the horizontal axis of the bicycle, a bearing or a bearing bush in the bearing seat matched with the front end of the longitudinal shaft of the bicycle seat seat, and a longitudinal axis of the bicycle The connected steering assembly, the connecting crossbar controlled by the steering component, and the two steering axle seats integrated at the two ends of the horizontal axis and the horizontal axis are respectively located in the two steering axle seats and are integrally connected with the two front wheel axles of the bicycle. Two steering shafts of the shaft hole, the two steering shaft pins are respectively inserted in the two steering shaft seats and the two steering shaft shaft holes and fixed on the two steering shaft seats through the connecting members, and the two steering shafts rotate relative to the two steering shaft pins, the two steering arms One end is hinged to both ends of the connecting crossbar and the other end is respectively corresponding to the steering The shaft is connected in one.

The steering assembly has a steering lever connected to the longitudinal shaft at one end, a sliding bracket with a strip-shaped sliding slot connected to the crossbar, and the other end of the steering lever has a sliding slot extending into the sliding seat and A sliding column that slidably engages with the chute.

The steering assembly described above has intermeshing sector-shaped teeth and racks respectively mounted on the longitudinal shaft and the connecting crossbar, mounted on the longitudinal shaft and the bracket on the connecting crossbar.

The above-mentioned handleless steering mechanism has a positioning device, which comprises an upper plate and a lower plate respectively mounted on the longitudinal axis and the horizontal axis of the bicycle, and a spring between the upper plate and the lower plate and connected to the upper and lower plates at both ends respectively, which can be maintained. The seat is parallel to the ground and safe.

The steering mechanism of the present invention is mounted on the horizontal axis and the longitudinal axis of the front end of the inverted three- or four-wheel bicycle. When riding, the longitudinal axis is axially rotated by the left and right offset of the center of gravity of the person in the seat, so that the steering assembly drives the connecting crossbar and the steering arm to move leftward or rightward, and the steering arm drives The integrated steering shaft and wheel axle rotate about the steering axle pin to steer the front wheel of the inverted three or four wheel bicycle.

The handleless steering mechanism of the invention is installed on the inverted three-wheel bicycle or the four-wheel bicycle, and can perform the work at the same time or alternately with the hands and feet to promote the driving of the vehicle. The simultaneous work of the hands and feet can improve the speed, and the hands and feet can work alternately to change the rest of the hands and feet, which is advantageous for long distance. Riding. It is also possible to provide a person with a hand or foot disability with a three- or four-wheeled bicycle that is much more efficient than a human-powered vehicle currently used by a disabled person, saving effort and safety.

BRIEF DESCRIPTION OF THE DRAWINGS:

Figure 1 is a schematic view of the structure of the present invention for use on a three-wheeled bicycle.

Figure 2 is a diagram showing the working state of the present invention on a three-wheeled bicycle.

Figure 3 is a diagram of the position of the steering assembly.

Fig. 4 is an enlarged view of a portion I in Fig. 3. Figure 5 is a cross-sectional view taken along line A - A of Figure 3;

Figure 6 is a cross-sectional view taken along line B-B of Figure 3.

Figure 7 is a schematic view showing the structure of the positioning device.

Figure 8 is a positional view of another structure of the steering assembly on the bicycle.

Figure 9 is a cross-sectional view taken along line C-C of Figure 8.

Fig. 10 is an enlarged view of a portion II in Fig. 8.

Figure 11 is a positional view of the present invention on a reverse three-wheeled bicycle having a frame.

Figure 12 is a plan view of Figure 11.

detailed description:

Referring to FIG. 1 to FIG. 6, the steering mechanism of the inverted three-wheel and four-wheel bicycle without the handlebar includes a bearing seat 3 installed in the middle of the horizontal axis 4 of the bicycle, and a longitudinal axis of the seat belt 1 in the bearing housing. 2 front-fitted bearing or bearing bush 1-3, steering assembly connected to the longitudinal axis of the bicycle, connecting rail 7 controlled by the steering assembly, and two steering axle seats 12 at both ends of the horizontal axis and the transverse shaft are respectively located, respectively Two steering shafts 11 having shaft holes in the two steering axle seats and integrated with the two front wheel axles 13 of the bicycle. The two steering pin 11-11 are respectively inserted into the two steering shaft seats and the two steering shaft shaft holes and are fixed to the two steering shaft seats by a connecting member and a nut. The two steering shafts rotate relative to the two steering axle pins. One ends of the two steering arms 9 are respectively hinged to the ends of the connecting rail by the pin 10 and the other ends are integrally connected to the corresponding steering shaft.

Referring to FIG. 3 to FIG. 6, the steering assembly has a steering lever 5 connected to the longitudinal shaft at one end, a sliding seat 8 having a strip-shaped sliding groove mounted on the connecting crossbar, and the other end of the steering lever has a sliding slip. a sliding column 6 in the sliding groove of the seat and slidingly engaged with the sliding groove.

As shown in FIG. 1 and FIG. 7, the positioning device includes an upper plate 14 and a lower plate 16 respectively mounted on the longitudinal axis and the horizontal axis of the bicycle, and is located between the upper plate 14 and the lower plate 16 and is respectively connected to the upper and lower plates. Spring 15.

When the person is riding, the center of gravity of the person on the seat 1 is shifted to the left and right, so that the longitudinal beam 2 is axially rotated, and the steering lever 5 below the longitudinal beam 2 is caused to swing leftward or rightward, and passes through the cylinder 6 Pushing the cylindrical slide hole seat 8 to the left or to the right and driving the connecting crossbar 7 and the steering arm 9 to move to the left or right at the same time, and the steering arm 9 and the wheel axle 13 are driven around the steering shaft pin 11-1 by the steering arm 9 Turning, the front wheel 17 mounted on the wheel axle 13 achieves steering. The offset angle of the center of gravity of the body is small, the axial rotation angle of the longitudinal beam 2 is small, the degree of rotation of the steering lever 5 is also small, and the movement of the connecting crossbar 7 and the steering arm 9 is also small, and the corresponding steering angle of the front wheel is also small. The center of gravity offset angle is large, the axial rotation angle of the longitudinal beam 2 is large, the degree of rotation of the steering lever 5 is also large, and the movement of the connecting crossbar 7 and the steering arm 9 is also large, and the corresponding front wheel steering angle is also It is big.

A steering assembly as shown in Figs. 8 to 10 can also be used. The steering assembly has an intermeshing sector tooth plate 5a and a rack 8a which are respectively mounted on the longitudinal shaft and the connecting crossbar, and are mounted on the longitudinal shaft and the bracket 6a on the connecting crossbar. When the left and right offsets cause the longitudinal beam 2 to rotate axially, the sector gear 5a rotates accordingly, causing the rack 8a and the connecting crossbar 7 to move left and right, thereby causing the steering arm 9 to move and drive the steering shaft 11 and the wheel axle 13 Steering with the front wheels.

Alternatively, as shown in Figs. 11 and 12, the present invention can be mounted on a reverse three-wheeled bicycle having a frame. The seat 1 is mounted on the longitudinal shaft 2a (a chute can be adjusted between the seat and the longitudinal axis to adjust the seat fore and aft). The longitudinal shaft 2a is mounted in the longitudinal axle seats 3a, 3b to cooperate with bearings or bushings in the longitudinal axle seats 3a, 3b. The longitudinal shaft seats 3a, 3b are mounted on the frame 4a. The advantage of this approach is that the strength of the frame is relatively high.

The handleless steering mechanism of the present invention can also be mounted on a four-wheeled bicycle.

The above-mentioned embodiments are further described in the above description of the present invention, but the scope of the above-mentioned subject matter of the present invention should not be construed as being limited to the above embodiments. Technology based on the above All are within the scope of the invention. Industrial applicability:

The invention no longer requires a person to control the steering with both hands or one hand during the riding process, and is particularly suitable for a bicycle riding enthusiast or a person with a disabled foot or hands, and has good industrial applicability.

Claims

1. A three-wheeled, four-wheeled bicycle without a handlebar steering mechanism, characterized in that: a bearing seat mounted in the middle of the horizontal axis of the bicycle, a bearing or a bearing bush in the bearing seat that cooperates with the front end of the longitudinal shaft of the bicycle seat seat, a steering assembly connected to the longitudinal shaft of the bicycle, a connecting crossbar controlled by the steering assembly, and two steering axle seats integrally connected to the horizontal shaft at both ends of the horizontal shaft, respectively located in the two steering axle seats and connected to the front axles of the bicycle The two steering shafts having the shaft holes are respectively inserted into the two steering shaft seats and the two steering shaft shaft holes and fixed on the two steering shaft seats through the connecting members, and the two steering shafts rotate relative to the two steering shaft pins. One ends of the two steering arms are respectively hinged with the two ends of the connecting crossbar and the other ends are respectively integrated with the corresponding steering shaft.

2. The reverse three-wheeled, four-wheeled bicycle without handlebar steering mechanism according to claim 1, wherein: the steering assembly has a steering lever connected at one end to the longitudinal shaft, and is mounted on the connecting rail. The sliding seat of the chute, the other end of the steering lever has a sliding column extending into the sliding slot on the sliding seat and slidingly engaging with the sliding slot.

3. The inverted three-wheel, four-wheel bicycle without handlebar steering mechanism according to claim 1, wherein: the steering assembly has intermeshing sector-shaped tooth plates and racks respectively mounted on the longitudinal shaft and the connecting crossbar , a bracket mounted on the longitudinal shaft and the connecting crossbar.

4. The inverted three-wheeled, four-wheeled bicycle without handlebar steering mechanism according to claim 1 or 2 or 3, wherein the handleless steering mechanism has positioning means, which are respectively mounted on the longitudinal axis of the bicycle, The upper plate and the lower plate on the horizontal axis are springs which are located between the upper plate and the lower plate and are respectively connected to the upper and lower plates at both ends.