CN115610563A - Easy-to-swing steering bicycle - Google Patents

Abstract

A bicycle that is easy to rock and turn, comprising: a left pedal and a right pedal are connected with a rear wheel of a bicycle frame, a longitudinal pipe and a transverse pipe extend from the position of the bicycle frame adjacent to the front wheel, a handle group comprises a central shaft rod, a left handle, a right handle, a left connecting rod and a right connecting rod, the central shaft rod penetrates through the transverse pipe, one end of the central shaft rod is sleeved with the left handle, the other end of the central shaft rod is sleeved with the right handle, the left handle and the left pedal are connected with the left connecting rod, the right handle and the right pedal are connected with the right connecting rod, a gear set is provided with a first bevel gear at the right handle, a second bevel gear at the right connecting rod, and a connecting gear is further provided with a connecting gear which penetrates through the central shaft through a fixing rod and is meshed with the first bevel gear and the second bevel gear at the same time, so that the operability and the stability of the turning action of the bicycle are improved.

Description

Easy-to-swing steering bicycle

Technical Field

The present invention relates to a bicycle structure, and more particularly to a bicycle capable of switching between synchronous operation and asynchronous operation of two hands and easy to swing and steer.

Background

A known bicycle structure, as shown in fig. 17, includes: a frame 50, a steering mechanism 60 and a handle group 70, a frame 50 is pivotally provided with a rear wheel 51, the rear wheel 51 is connected with a right pedal 53 and a left pedal 54 through a chain wheel mechanism 52, the steering mechanism 60 is connected with two front wheels 61, two swing arms 62 and two control rods 63 are connected between the two front wheels 61, the frame 50 extends a longitudinal pipe 55, one end of the longitudinal pipe 55 is connected with a transverse pipe 56, the other end of the longitudinal pipe 55 is connected with the two swing arms 62 and the two control rods 63, the frame 50 can swing by taking the swing arms 62 as axes, and the control rods 63 are pulled to control the steering of the front wheels 61, the handle group 70 is pivotally provided with the transverse pipe 56 at a central section, and a right handle 71 and a left handle 72 are formed at one end to provide a user's hand, and the other end is connected with the right pedal 53 and the left pedal 54, so that the left hand and the right hand can swing by matching two feet asynchronously, thereby achieving the purpose of walking, but the above-mentioned known design has not many disadvantages, which are due to the following reasons: when the left and right hands alternately (asynchronously) push and pull forward and backward, it is not easy for the user to control the right handle 71, the left handle 72 and the body to lean toward the side of the frame 50, which results in the disadvantage of imbalance and unsmooth in the turning motion of the bicycle, and even in the case of too fast speed, there is a risk of turning and tipping.

In view of the above, the present inventors have made various experiments on the manufacturing, development and design of related products for many years, and have made detailed design and careful evaluation to achieve the above objectives, and finally have obtained a practical invention.

Disclosure of Invention

The present invention is directed to a bicycle that is easy to swing and steer, which overcomes the above-mentioned drawbacks of the prior art.

The bicycle comprises a frame, a front wheel, a rear wheel, a left pedal, a right pedal, a longitudinal tube, a transverse tube, a handle set, a left connecting rod, a right connecting rod, a central shaft rod, a left handle, a right handle, a left connecting rod and a right connecting rod, wherein the longitudinal tube extends from the position of the frame, which is close to the front wheel, the transverse tube is formed at the top end of the longitudinal tube, the central shaft rod penetrates through the transverse tube, the left handle is sleeved at one end of the central shaft rod, the right handle is sleeved at the other end of the central shaft rod, the left handle is connected with the left pedal, the right handle is connected with the right pedal, a gear set is provided with a first bevel gear at the position of the right handle, a second bevel gear is arranged at the position of the right connecting rod, a connecting gear is further arranged at the gear set, the connecting gear is provided with a connecting gear, the connecting gear penetrates through the central shaft rod through a fixing rod, and the first bevel gear and the second bevel gear are meshed with the second bevel gear at the same time.

Wherein the gear set covers a gear box, the gear box is fixed by the fixing rod in a penetrating way, the gear box is provided with a positioning button, and the positioning button locks and presses the linkage gear downwards so as to ensure that the central shaft, the linkage gear, the first bevel gear and the second bevel gear form an integral linkage state.

Wherein, the central shaft rod is provided with a screw hole at one end sleeved with the right handle, and the screw hole is locked with a lock knob which is blocked outside the right handle.

Wherein this vertical pipe has a first axostylus axostyle with extending in the bottom, and this frame extends in this first axostylus axostyle department perpendicular has a round bar, and this round bar is connected with a second axostylus axostyle with the axial, and this second axostylus axostyle is used for erectting two these front wheels again, and this first axostylus axostyle is used for controlling two these front wheels and turns to the action.

Wherein the second shaft rod is sleeved with a sleeve body, the second shaft rod is convexly provided with an annular part, the sleeve body is blocked by the annular part and cannot be separated from the second shaft rod, the round rod is provided with a threaded section, and the sleeve body is locked with the threaded section, so that the round rod can rotate relative to the second shaft rod.

The steering mechanism comprises a connecting rod, a T-shaped arm, an inner rod and two steering arms, the first shaft rod is pivoted at the middle section of the connecting rod, the two ends of the connecting rod are provided with movable steering joints, one end of the T-shaped arm is pivoted on the second shaft rod, the inner rod is arranged at the other end of the T-shaped arm in a penetrating mode, the inner rod is parallel to the connecting rod, one end of each of the two steering arms is connected with the front wheel, the other end of the steering arm is connected with the movable steering joints, and the two ends of the inner rod are connected with the middle section of the steering arm through fixed steering joints.

The main objective of the present invention is to change the swing direction of the right handle by using the gear set, so that the left handle and the right handle can be synchronously pushed and pulled forward and backward regardless of the left pedal or the right pedal being depressed, thereby generating a fitness driving manner similar to rowing, and when the left and right handles are synchronously pushed and pulled forward, the user can more easily control the left handle, the right handle and the body weight to lean toward the side direction of the frame, thereby facilitating the improvement of the operability and stability of the bicycle in turning.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a perspective view of the present invention.

FIG. 2 is a side view of the left and right handles of the present invention in a synchronized position.

Fig. 3 is a partial cross-sectional view of the gear unit of the present invention.

Fig. 4 is a schematic diagram (one) illustrating the synchronous operation of the left and right handles according to the present invention.

Fig. 5 is a schematic diagram (two) illustrating the synchronous operation of the left and right handles according to the present invention.

FIG. 6 is a side view of the left and right handles of the present invention in an unsynchronized position.

FIG. 7 is a schematic diagram of the locking action of the gear assembly of the present invention.

FIG. 8 is a schematic diagram (I) illustrating asynchronous operation of the left and right handles according to the present invention.

Fig. 9 is a schematic diagram (two) of the asynchronous operation of the left and right handles of the present invention.

FIG. 10 is a schematic view of the present invention for adjusting the position of the right handle.

Fig. 11 is a perspective view of the steering mechanism of the present invention.

Fig. 12 is a schematic view of the connection of the frame and the steering mechanism of the present invention.

FIG. 13 is a front view of the present invention before a turning maneuver.

FIG. 14 is a side view of the present invention prior to a turning maneuver.

FIG. 15 is a front view of the present invention during a turning maneuver.

FIG. 16 is a side view of the present invention during a turning action.

FIG. 17 is a perspective view of the known bicycle.

Wherein, the reference numbers:

10 vehicle frame

11 front wheel

12 rear wheel

12a sprocket gear

121 left pedal

122 right pedal

13 longitudinal tube

131: transverse tube

132 first shaft

14 round bar

141 thread segment

15 second shaft rod

151 ring portion

16: sleeve body

20, handle group

21 central shaft

211 screw hole

22 left handle

23, right handle

24 left connecting rod

25 right connecting rod

26, lock knob

30 gear set

31 first bevel gear

32 second bevel gear

33 linkage gear

331: fixing rod

34 gear box

35 positioning button

40 steering mechanism

41 connecting rod

411 moving steering joint

42

43 inner pole

431 fixed steering joint

44 steering arm

[ known ]

50: vehicle frame

51 rear wheel

52 chain wheel mechanism

53 right pedal

54 left pedal

55 longitudinal pipe

56 transverse tube

60 steering mechanism

61 front wheel

62 swing arm

63 control rod

70, handle group

71 right handle

72 left handle

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

referring first to fig. 1 to 3, a bicycle easy to rock and turn comprises: a frame 10, a handle set 20, a gear set 30 and a steering mechanism 40, wherein the frame 10 is pivotally provided with at least a front wheel 11 and a rear wheel 12, the rear wheel 12 is connected with a left pedal 121 and a right pedal 122 through a chain wheel mechanism 12a, the frame 10 is extended with a longitudinal tube 13 adjacent to the front wheel 11, and a transverse tube 131 is formed at the top end of the longitudinal tube 13, and a first shaft 132 is extended from the bottom end of the longitudinal tube 13 coaxially, the frame 10 is extended with a round bar 14 perpendicular to the first shaft 132, and the round bar 14 is coaxially connected with a second shaft 15, and the second shaft 15 is used for erecting two front wheels 11, and the first shaft 132 is used for controlling the two front wheels 11 to steer, wherein the second shaft 15 is sleeved with a sleeve 16, and the second shaft 15 is convexly provided with a ring portion 151 (shown in fig. 12), the sleeve 16 is blocked by the ring 151 and cannot be separated from the second shaft 15, the circular rod 14 is formed with a threaded section 141 (shown in fig. 12), and the sleeve 16 is locked with the threaded section 141, so that the circular rod 14 can rotate relative to the second shaft 15, a handle set 20 includes a central shaft 21, a left handle 22, a right handle 23, a left connecting rod 24 and a right connecting rod 25, the central shaft 21 passes through the transverse tube 131, one end of the central shaft 21 is sleeved with the left handle 22, the other end of the central shaft 21 is sleeved with the right handle 23, the left handle 22 and the left pedal 121 are connected with the left connecting rod 24, the right handle 23 and the right pedal 122 are connected with the right connecting rod 25, a gear set 30 is provided with a first bevel gear 31 at the right handle 23, the gear set 30 is provided with a second bevel gear 32 at the right connecting rod 25, and the gear set 30 is further provided with a connecting gear 33, the linkage gear 33 is disposed through the central shaft 21 by a fixing rod 331, the linkage gear 33 is engaged with the first bevel gear 31 and the second bevel gear 32, the gear set 30 covers a gear box 34, the gear box 34 is fixed by the fixing rod 331, the gear box 34 is provided with a positioning button 35, a steering mechanism 40 includes a connecting rod 41, a T-shaped arm 42, an inner rod 43 and two steering arms 44, the middle section of the connecting rod 41 is pivotally disposed on the first shaft 132, two ends of the connecting rod 41 are both provided with a movable steering joint 411, one end of the T-shaped arm 42 is pivotally disposed on the second shaft 15, the other end of the T-shaped arm 42 is disposed through the inner rod 43, the inner rod 43 and the connecting rod 41 are parallel, one end of each of the two steering arms 44 is connected to the front wheel 11, the other end of each steering arm 44 is connected to the movable steering joint 411, and two ends of the inner rod 43 are both connected to the middle section of the steering arm 44 by a fixed steering joint 431.

In practical use, please refer to fig. 3, 4, and 5 with the view shown in fig. 1, a user steps on the left pedal 121 and the right pedal 122 with feet standing, and holds both hands at the left handle 22 and the right handle 23, when the feet step down the left pedal 121 and the right pedal 122 in sequence, the left pedal 121 and the right pedal 122 drive the chain wheel mechanism 12a, the chain wheel mechanism 12a drives the rear wheel 12 to rotate in the forward direction, the left pedal 121 links the left connecting rod 24, the left connecting rod 24 synchronously swings the left handle 22, the left connecting rod 24 and the left handle 22 rotate around the central shaft 21, so that the user pushes the left handle 22 to cooperate with the left pedal 121 to drive the rear wheel 12 with labor saving, on the other hand, the right pedal 122 links the right connecting rod 25, the right connecting rod 25 and the right handle 23 are both sleeved on the central shaft 21, the gear set 30 is used to link the right handle 23 and the right connecting rod 25, the first bevel gear 31 and the second bevel gear 32 of the gear set 30 are both sleeved on the central shaft 21, the first bevel gear 31 is fixed at the end of the right handle 23, the second bevel gear 32 is fixed at the end of the right connecting rod 25, the link gear 33 is connected to the central shaft 21 by the fixing rod 331, the link gear 33 is located between the first bevel gear 31 and the second bevel gear 32 and simultaneously engaged with the first bevel gear 31 and the second bevel gear 32, when a user pushes and pulls the right handle 23, the first bevel gear 31 at the end of the right handle 23 drives the link gear 33 to generate power transmission in a tangential direction, the link gear 33 further drives the second bevel gear 32 to form power transmission in a tangential direction again, the first bevel gear 31 and the second bevel gear 32 are also rotated in opposite directions, so that the right handle 23 and the right connecting rod 25 are rotated in opposite directions by the gear set 30, and when the user pushes the right handle 23, the right pedal 122 can be matched to drive the rear wheel 12 in a labor-saving manner, in conclusion, the present invention utilizes the gear set 30 to change the swing direction of the right handle 23, so that the left handle 22 and the right handle 23 can be synchronously pushed and pulled forward regardless of whether the left pedal 121 or the right pedal 122 is stepped down, so as to generate a fitness driving manner like rowing, and when the left and right hands synchronously push and pull forward, the user can more easily control the left handle 22, the right handle 23 and the body center to lean toward the lateral side of the frame 10, thereby facilitating the improvement of the operability and stability of the turning motion of the bicycle.

In another practical situation, as shown in fig. 6 to fig. 9, when the user wants to stop synchronizing the left and right handles 22, 23, the positioning button 35 tightly presses the linking gear 33 to make the central shaft 21, the linking gear 33, the first bevel gear 31 and the second bevel gear 32 form an integral linking state, at this time, the linking gear 33 cannot rotate, so as to form a direct transmission among the first bevel gear 31, the second bevel gear 32 and the linking gear 33, that is, the central shaft 21 and the right handle 23 rotate synchronously, in this state, the right connecting rod 25 and the right handle 23 rotate in the same direction, that is, the right connecting rod 25 and the right handle 23 are adjusted to be in a mutual state, and when the left and right pedals 121, 122 are alternatively pressed down, the left and right handles 22, 23 also generate a driving operation of alternately pushing forward and pulling backward, therefore, another using state of the driving bicycle is provided, and in addition, in accordance with the view shown in fig. 10, a screw hole 211 is formed at one end of the central shaft 21, which is sleeved with the right handle 23, and a lock knob 26 is locked at the screw hole 211, and the lock knob 26 is blocked at the outer side of the right handle 23, when the left and right handles 22, 23 are not at symmetrical positions, different handle operating modes are switched, the left and right handles 22, 23 do not swing in the same direction or in opposite directions at normal positions, at this time, the lock knob 26 at the outer side of the right handle 23 can be released, the right handle 23 can be properly pulled away from the central shaft 21, thereby separating the first bevel gear 31 and the linkage gear 33, the right handle 23 can be freely rotated and adjusted to a corresponding correct position, and then the lock knob 26 forms the engagement of the first bevel gear 31 and the linkage gear 33, thereby effectively adjusting the left bevel gear 31 and the linkage gear 33, the purpose of the relative position of the right handles 22, 23.

Further explaining the steering action of the bicycle, please continue from fig. 11 to fig. 16, the steering mechanism 40 is configured such that the inner rod 43 penetrates through the T-shaped arm 42, such that the inner rod 43 can rotate relative to the T-shaped arm 42 and cannot be pulled away, two ends of the inner rod 43 are respectively connected to the fixed steering joints 431 of the steering arm 44, one end of the steering arm 44 is connected to the front wheel 11, and the other ends of the two steering arms 44 are commonly connected to the movable steering joints 411 at two ends of the connecting rod 41, i.e. the steering mechanism 40 is configured in a four-bar state with the connecting rod 41, the steering arm 44 and the inner rod 43, one end of the steering mechanism 40 extending outward from the T-shaped arm 42 is connected to the second shaft rod 15, the sleeve 16 is sleeved on the second shaft rod 15 of the frame 10, and the ring portion 151 of the second shaft rod 15 can prevent the sleeve 16 from being disengaged, and the sleeve 16 is locked to the threaded portion 141 of the round rod 14, and the first shaft 132 is pivoted at the middle section of the connecting rod 41, when the user controls the left handle 22, the right handle 23 and the body weight to incline towards the side direction of the frame 10, the frame 10 will rotate a proper angle with the round rod 14 as the axis, so that the frame 10, the left handle 22, the right handle 23, the left pedal 121, the right pedal 122 and the rear wheel 12 incline together, meanwhile, the first shaft 132 pushes the connecting rod 41 to move transversely, so that the connecting rod 41 pulls the steering arm 44 at one end and pushes the other steering arm 44 at the other end, thereby the forward angle of the front wheel 11 can be changed by the steering arm 44, and the purpose of turning the bicycle is achieved, furthermore, because the length of the first shaft 132 is not changed, when the first shaft 132 rotates with the round rod 14 as the axis, the connecting rod 41 will generate a slight height rise, the inner rod 43 is rotated at the T-shaped arm 42, so as to provide a sufficient height of the connecting rod 41 to raise the space, and effectively achieve the purpose of turning the bicycle.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

1. A bicycle that is easy to rock and steer, comprising:

a frame, which is pivoted with two front wheels and a rear wheel, the rear wheel is connected with a left pedal and a right pedal, the frame extends to a position adjacent to the front wheels to form a longitudinal tube, and the top end of the longitudinal tube is connected with a transverse tube; a handle group, which comprises a central shaft rod, a left handle, a right handle, a left connecting rod and a right connecting rod, wherein the central shaft rod penetrates through the transverse pipe, one end of the central shaft rod is sleeved with the left handle, the other end of the central shaft rod is sleeved with the right handle, the left handle and the left pedal are connected with the left connecting rod, and the right handle and the right pedal are connected with the right connecting rod; and

a gear set, which is provided with a first bevel gear at the right handle, a second bevel gear at the right connecting rod, and a linkage gear, wherein the linkage gear is arranged through a fixed rod on the central shaft rod, and the linkage gear is engaged with the first bevel gear and the second bevel gear.

2. The bicycle with easy swinging and steering as claimed in claim 1, wherein the gear assembly houses a gear housing, the gear housing is fixed by the fixing rod, the gear housing is provided with a positioning button, and the positioning button locks and presses the linkage gear to form an integral linkage state of the central shaft, the linkage gear, the first bevel gear and the second bevel gear.

3. The bicycle easy to rock and turn as claimed in claim 1, wherein the central shaft has a screw hole at one end thereof where the right handle is sleeved, and a lock knob is locked at the screw hole and blocked at the outer side of the right handle.

4. The bicycle capable of steering in a rocking manner as claimed in claim 1, wherein the longitudinal tube has a first axle extending coaxially from a bottom end thereof, the frame has a circular rod extending perpendicularly to the first axle, the circular rod is coaxially connected to a second axle, the second axle is used for mounting two front wheels, and the first axle is used for operating the two front wheels to steer.

5. The bicycle capable of easily swinging and steering as claimed in claim 4, wherein a sleeve is sleeved on the second shaft rod, and the second shaft rod is protruded with an annular portion, the sleeve is blocked by the annular portion and cannot be separated from the second shaft rod, and the circular rod is formed with a threaded section, and the threaded section is locked on the sleeve, so that the circular rod can rotate relative to the second shaft rod.

6. The bicycle easy to swing and steer as claimed in claim 5, further comprising a steering mechanism, wherein the steering mechanism comprises a connecting rod, a T-shaped arm, an inner rod and two steering arms, the connecting rod is pivotally mounted on the first shaft at a middle portion, and both ends of the connecting rod are provided with a movable steering joint, one end of the T-shaped arm is pivotally mounted on the second shaft, the inner rod is mounted at the other end of the T-shaped arm, the inner rod and the connecting rod are parallel to each other, one end of each of the two steering arms is connected to the front wheel, the other end of the steering arm is connected to the movable steering joint, and both ends of the inner rod are connected to the middle portion of the steering arm by a fixed steering joint.

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