KR20070036986A - Jumping bicycle - Google Patents

Abstract

The present invention is configured to minimize the size of the front wheel and rear wheel coupled to the frame portion and maximize the shock absorber to increase the elasticity, so that when the user applies the weight using the weight of the jumping bike to maximize the jumping jump And a plurality of ratchet wheels interlocked by a pinion action key configured between the rear frame and the front frame to drive the driving sprocket, so that the bicycle can be driven by the rotation of the rear wheel even if the user does not apply the driving force. .

The present invention is divided into a frame part constituting the body of the bicycle divided into a front frame and a rear frame, and at the same time one side of the rear frame is hinged to the lower side of the front frame and the other side is rotated within a certain range in a fan shape. By forming a plurality of shock absorber between the rear frame and the front frame, and between the front fork and the front wheel of the steering unit for steering the movement direction of the bicycle,

As the user who rides the bicycle exerts a force on the front frame by using the weight, the front frame is contracted closer to the ground and the rear frame is always reciprocated by the force that is to be restored to the elastic force. It is to provide a jumping bike that allows.

Jumping, Shock Absorber, Frame, Ratchet Drive, Ratchet Wheel, Pole

Description

Jumping bicycle {Jumping bicycle}

1 is a perspective view of a jumping bicycle according to the present invention.

2a and 2b is an operating state of the jumping bike according to the invention.

Figure 3 is an enlarged exploded perspective view of the main portion showing a coupling relationship of the drive means and the ratchet drive portion of the present invention.

Figure 4 is an exploded perspective view showing a coupling relationship of the ratchet drive unit according to the present invention.

Figure 5 is a side view of the ratchet drive unit according to the present invention.

Fig. 6 is a plan sectional view of the ratchet drive section for part A (of Fig. 5) of the present invention.

7a and 7b is an operating state of the ratchet drive unit according to the present invention.

8 is a side view showing a state of use of the present invention.

Figure 9 is a side view showing another embodiment of the pinion action key in the jumping bicycle according to the present invention.

Figure 10 is an operating state according to another embodiment of a jumping bike according to the present invention.

Figures 11a and 11b is an operating state diagram showing a ratchet drive unit of another embodiment in the present invention.

*** Explanation of symbols for the main parts of the drawing ***

1: jumping bike, 10: frame part, 11: front frame

11a: through hole, 11b: upper link, 12: rear frame

20: steering part, 21: steering wheel, 22: front fork

23: shock absorber, 30a: front wheel, 30b: rear wheel

40: drive means, 41: drive sprocket, 42: chain

43: driven sprocket, 44: pedal, 45: crankshaft

50: ratchet drive unit, 51, 51 ': pinion operating key, 51a: first rack

51b: second rack, 51c: outer rib, 51c-1: insertion space

51c-2: Locking ball, 51d: Center bar, 51d-1: Locking groove

52: first auxiliary gear, 52a: first ratchet wheel, 53: second auxiliary gear

53a: second ratchet wheel, 52b, 53b: pole, 54: interlocking gear

55: locking means, 55a: locking projection, 60, 70: control lever

61,71: cable, 111: headpipe, 112: saddle

113: height adjustment shoba, 121: hinge portion, 122 lower link

123: driven shaft

The present invention relates to a bicycle, and more particularly, the front wheel and the rear wheel are coupled to the frame to minimize the size and maximize the shock absorber to increase the elasticity when the user applies weight using the weight of the bicycle In addition to providing a jumping bike that maximizes the jumping jump, a plurality of ratchet wheels linked by pinion action keys configured between the rear frame and the front frame rotate the driving sprocket so that the bicycle can be driven by the rotation of the rear wheel without applying the driving force. It's about a jumping bike.

In general, a bicycle is a two-wheeled vehicle (wheelbarrow) that is driven by rotating wheels by a person's power. The foot is driven by a pedal, a driving sprocket, a chain, and a driven sprocket. It is configured to transmit to the rear wheel, and to adjust the speed by changing the speed ratio (變速 比) according to the driving conditions. Therefore, the above-mentioned bicycles are used to achieve the purpose of short-distance transportation or to enjoy sports effects and leisure activities.

In Korean Patent Application No. 20-318647, the front frame is connected to the front wheels and the saddle is installed, the rear frame is installed and the rear frame is coupled through the hinge portion connected to the front frame, and one side is fastened to the front frame and the other side Bicycles have been developed and used to mitigate the shock transmitted to the frame when traveling on an unpaved road or uneven road formed with a shock-absorbing shock absorber connected to one side of the rear frame.

The above-mentioned conventional invention merely solves the problem of shock mitigation transmitted to the frame part by the uneven road or ground condition, and no effect can be expected for the user for the purpose of exercise effect and leisure activity.

Users who enjoy the above-mentioned sports and leisure can experience leisure activities and exercise effects only by hiking for the purpose of travel using a conventional bicycle, racing games that can experience a sense of speed, or competitions that require high difficulty as possible on special sculptures. There is no choice but to expect.

In addition, hiking or racing can be done only in a place far from a residential environment or in a large space, and can be performed through special sculptures. Due to the lack of environment and conditions, only a limited number of enthusiasts are creating a leisure culture.

An object of the present invention was devised in view of the above-mentioned problems, the frame portion constituting the body of the bicycle is divided into a front frame and a rear frame, and at the same time one side of the rear frame is hinged with the lower side of the front frame Combination allows the other side to rotate within a certain range in a fan shape, and by configuring a plurality of shock absorbers between the rear frame and the front frame, and between the front fork and the front wheel of the steering unit for steering the movement direction of the bicycle,

As the user who rides the bicycle exerts a force on the front frame by using the weight, the front frame is contracted closer to the ground and the rear frame is always reciprocated by the force that is to be restored to the elastic force. It is to provide a jumping bike that allows.

Another object of the present invention, in the jumping bicycle jumped through the operation as described above, the ratchet driving unit including a linkage gear for rotating the drive sprocket in engagement with a drive sprocket connected to the pedal the front frame It is configured in the hinge part between the rear frame and the rear frame is operated together when the fan is rotated in a fan shape to drive the drive sprocket by rotating the jump so that the user can continue to run without stopping the bicycle even if the pedal is not powered In providing bicycles.

In order to achieve the above object, the present invention, the steering portion for steering the movement direction, the frame portion consisting of a front frame and a rear frame constituting the body, the front wheel and the rear wheel for driving coupled to the lower front and rear of the frame portion, In the normal bicycle comprising a drive means consisting of a pedal and a drive sprocket and a crankshaft coupled to the frame portion and the rear wheel to rotate the rear wheel,

And a plurality of shock absorbers configured at both ends of the steering unit at a predetermined position, at both ends of the rear side of the front frame, and at an upper side of the rear frame to enable buffering and jumping jump.

A drive gear integrally coupled to one side of the drive sprocket on the same axis and having a diameter somewhat smaller than the diameter thereof; The bicycle is configured to move forward by interlocking the driving means by interlocking with the latch driving unit when the weight of the user is raised and lowered by the ratchet driving unit of the driving unit coupled to the driving gear to continuously rotate the driving sprocket.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1 is a perspective view of a jumping bicycle according to the present invention, Figures 2a and 2b is an operating state diagram of a jumping bicycle according to the present invention, Figure 3 is a main portion showing a coupling relationship of the drive means and the ratchet drive unit of the present invention 4 is an exploded perspective view illustrating a coupling relationship of a ratchet driving unit according to the present invention, FIG. 5 is a side view of the ratchet driving unit according to the present invention, and FIG. 6 is a portion A of FIG. Figure 7a and Figure 7b is a plan view of the ratchet drive unit for the operation state diagram of the ratchet drive unit according to the present invention, Figure 8 is a side view showing a use state of the present invention, Figure 9 is a jumping bicycle according to the invention, Figure 10 is a side view showing another embodiment of the pinion operating key, Figure 10 is an operating state according to another embodiment of a jumping bicycle according to the invention, Figures 11a and 11b is a ratchet driving unit of another embodiment in the present invention Tanaen the operation phase diagram.

As shown in Figures 1 and 2a, 2b, the jumping bicycle according to the present invention (1), the frame portion constituting the body 10, the steering portion 20 for steering the movement direction, and the frame portion The driving means 40 coupled to the front and rear lower ends of the 10 and the front wheel 30a and the rear wheel 30b for driving, and coupled to the frame portion 10 to rotate the rear wheel 30b, and the driving means 40. It is configured with a ratchet drive unit 50 coupled to the rear wheel 30b to be rotated even if the user does not control the drive means 40 through the pedal 44.

The frame part 10 includes a front frame 11 constituting the body and a rear frame 12 which is hinged at the lower end of the front frame 11 so that the other side can be rotated in a fan shape in a certain range.

A head pipe 111 is provided at the front end of the front frame 11, and a steering part 20 for steering the moving direction is coupled to the head pipe 111. And, one side of the upper side, the saddle 112 is coupled to the height control shobu 113 is connected to the operation lever 60 and the cable 61 is further configured to easily adjust the height.

The steering unit 20 is provided with a handle 21 at the upper end of the user grips with both hands to steer the driving direction, the front fork 22 of a predetermined length from the lower end is configured in the vertical direction, the front fork (22) is combined with a shock absorber 23 for the buffer effect and jumping jump. At the bottom thereof, the front wheel 30a is rotatably coupled.

As shown in FIG. 3, the rear frame 12 is provided with a hinge portion 121 that is hinged and fitted with a through hole 11a formed at the center lower end of the front frame 11, so that the pedals 44 together. The crank shaft 45 is provided through the through hole (11a) and the hinge portion 121 to be integrally coupled, the rear wheel 30b is coupled to the end rotatably by a separate driven shaft 123 do.

In addition, other shock absorbers 114 which are fastened at both ends by the upper link 11b formed at the rear of the front frame 11 and the lower link 122 formed at the upper side of the rear frame 12 are installed in the vertical direction. do.

Accordingly, the rear frame 12 is configured such that the opposite side of the rear frame 12 can be rotated in a fan shape around the hinge portion 121 hinged together with the through hole 11a of the front frame 11, so that the rear wheel can rotate. 30b may be closely contracted to the frame portion 10 or may be spaced apart from the initial position by the shock absorber 114.

The shock absorber 114 has the same elastic force as the shock absorber 23 configured in the front fork 22 of the steering unit 20.

The drive means 40 includes a drive sprocket 41 which is driven by a crankshaft 45 which is operated by operating the pedal 44 and a driven sprocket coupled to the driven shaft 123 of the rear wheel 30b. 43 and a chain 42 surrounding the drive sprocket 41 and the driven sprocket 43 to transmit the driving force of the pedal 44 to the rear wheel 30b.

And, one side of the drive sprocket 41 is further coupled to a separate drive gear (41a) somewhat smaller in diameter.

The ratchet driving unit 50 is a means for continuously rotating the driving means 40 engaged with the driving sprocket 41, and the user is lowered by the pressing force using weight and the shock absorbers 23 and 114 of the shock absorber 23 and 114 are lowered. When lifted up and down elastically, the pinion button operating key 51 coupled to the front end of the front frame 11 is raised and lowered integrally, and a plurality of pinion button operating keys 51 are provided in the lower through space portion. A first auxiliary gear 52 and a second auxiliary gear 53 and a first auxiliary gear 52 or a second auxiliary gear 53 which are provided and rotated according to the shanghai movement of the pinion operating key 51; It consists of an interlocking gear 54 for continuous rotation in one direction on the same axis by the rotational drive of.

As shown in FIG. 5, the pinion operating key 51 has an inverted Y " shape, the upper end of which is hinged to a small key link 11c protruding from the front frame 11, and can rotate within a predetermined range. After that, a predetermined space portion is formed through the lower end, and a plurality of first racks 51a and second racks 51b are formed at both inner ends thereof.

As illustrated in FIG. 6, the plurality of first racks 51a and the second racks 51b are formed at staggered positions by being divided at both ends with respect to the front and rear width thicknesses of the pinion operating keys 51.

The plurality of first auxiliary gears 52 and the second auxiliary gears 53 are internal space portions of the pinion mechanism operating key 51, and a plurality of the first auxiliary gears 52 and the second auxiliary gears 53 are positioned on the same axis, and a part of the outer peripheral surface thereof is respectively disposed on the first rack. It is fastened and structured by being bitten by the 51a and the 2nd rack 51b.

In addition, the first ratchet wheel 52a and the second ratchet wheel 53a which rotate in one direction therein according to the up and down operation of the pinion operating key 51 and the plurality of poles 52b and 53b controlling the pinion operating key 51 are controlled. It is configured to include.

The first auxiliary gear 52 is engaged with the first rack 51a of the pinion mechanism operating key 51, and the second auxiliary gear 53 is engaged with the second rack 51b.

Therefore, as shown in Figs. 7A and 7B, when the pinion operating key 51 is driven downward, the first ratchet wheel 52a configured inside the first auxiliary gear 52 is located on the outer circumferential surface thereof. It is fixed to a plurality of poles (52b) to rotate together, when the pinion operating key 51 is driven in the upward direction, the second ratchet wheel (53a) formed inside the second auxiliary gear (53) on its outer peripheral surface Rotating together by the plurality of poles 53b positioned to continuously rotate the interlocking gear 54 will be able to constantly drive the drive means (40).

Referring to the effect of the jumping bike of the present invention by the above configuration in more detail as follows.

First, as shown in FIG. 8, the user sits on the saddle 112 and grips the handle 21 with both hands. Then, the pedal 44 is brightened with both feet to drive the driving means 40. By continuously rotating the rear wheel 30b, the jumping bicycle 1 starts to run.

As shown in Figure 2a and 2b, a user riding while driving the jumping bike 1 through the process as described above using the body on the saddle 112 or pedal 44 as needed to instantaneously lose weight When lowered, the front frame 11 is lowered closer to the ground by its load,

At this time, the shock absorber 23 provided in the front fork 22 is contracted to bring the front wheel 30a closer to the handle 21, and the other side of the rear frame 12 hinged to the front frame 11 is The rear wheel 30b is close to the front frame 11 by rotating in a fan shape, and the shock absorber 114 installed vertically between the front frame 11 and the rear frame 12 contracts.

Then, when the force applied by the user is extinguished, each of the shock absorber 23, 114 that has been contracted to generate a force to be restored by the elastic force to make the jumping bike 1 ascends to the top to make a jump jump. .

Meanwhile, as shown in FIGS. 5, 7A, and 7B, in the process of contracting or restoring the frame portion 10 of the jumping bicycle 1, the front frame 11 and the rear frame 12 The pinion button operating keys 51 arranged in the vertical direction have an effect of narrowing or widening the distance between the front frame 11 and the rear frame 12, and are thus coupled to the lower side of the pinion button operating keys 51. The first auxiliary gear 52 and the second auxiliary gear 53 are rotated in different directions by the first rack 51a and the second rack 51b of the pinion operating key 51, respectively. 54 is rotated counterclockwise.

In more detail, by the first rack 51a and the second rack 51b staggered with respect to both ends of the inner surface thereof when the pinion button operating key 51 is operated downward,

As shown in FIG. 7A, the first auxiliary gear 52 engaged with the first rack 51a is rotated clockwise, and the second auxiliary gear 53 engaged with the second rack 51b is rotated. Rotate counterclockwise. At this time, the first ratchet wheel 52a configured inside the first auxiliary gear 52 is engaged in the direction in which the pole 52b is formed on the outer circumferential surface thereof to rotate simultaneously with the second auxiliary gear 53. The second ratchet wheel (53a) configured in the interior of the pawl (53b) configured on the outer circumferential direction is not caught in the direction is not rotated.

On the contrary, as shown in FIGS. 2A and 2B, the jumping frame 1 jumps by the elastic force of the plurality of shock absorbers 23 and 114 and the rear frame 12 is the front frame. The gap is opened from (11).

Therefore, as shown in FIG. 7B, the pinion button operation key 51 is moved upward, and thus performs the same function as described above, and the first auxiliary gear 52 engaged with the first rack 51a is It rotates counterclockwise, and the second auxiliary gear 53 meshed with the second rack 51b rotates clockwise.

At this time, the second ratchet wheel (53a) configured inside the second auxiliary gear 53 is engaged in the direction of the direction of the pole (53b) configured on the outer circumferential surface to rotate simultaneously, the first auxiliary gear (52) The first ratchet wheel (52a) configured in the interior of the pawl 52 configured on the outer circumferential surface of the locking is not made and is not rotated.

The interlocking gear 54 is continuously rotated counterclockwise through the first and second auxiliary gears 52 and 53 alternately rotating through the above-described action, and the driving gear 41a engaged therewith corresponds. By rotating, the driving device 40 rotates to continuously rotate the rear wheel 30b without stopping.

The present invention is the drive means through the ratchet drive unit 50 when the front frame 11 is contracted close to the ground by the user's force or elastically restored upward by the shock absorber (23) 114, By being able to drive 40, even if the user does not apply power to the pedal 44, the rear wheel 30b is generated to generate the driving of the jumping bicycle 1.

9 to 11B show another embodiment of the pinion mechanism operating key 51 'in the ratchet driving section 50 according to the present invention.

As shown in Figs. 11A and 11B, the pinion operating key 51 'has an insertion space 51c-1 and a plurality of locking holes 51c-2 penetrating through both lower ends thereof. An outer rib 51c having a pipe shape having a predetermined length, a center bar 51d formed with a plurality of locking grooves 51d-1, which may be positioned in the same manner as the locking hole 51c-2, and the outer rib It consists of a plurality of locking means 55 which prevents the flow of the center stand 51d inserted into the both ends of 51c, and fixes it.

That is, the upper end of the center bar 51d is inserted into the insertion space 51c-1 of the outer rib 51c.

The locking means 55, one side of the center is hinged to both ends of the outer position 51c at a predetermined position, the lower end is formed with a locking projection (55a) protruding inward.

9, an operating lever 70 for controlling the locking means 55 is provided at a predetermined position of the handle 21, and the cable 71 connected thereto is front at every predetermined portion. The other end is further combined with the upper end of the locking means 55 while being fixed to the frame 11.

The operation relationship by the above-mentioned pinion operating key 51 'is explained more clearly, when the handle 21 is lowered by the pressing force using the user's weight or lifted by the elasticity of the shock absorber 23, 114. A plurality of locking means 55 hinged to both ends of the outer rib 51c of the pinion mechanism operating key 51 'by operating the operation lever 70 configured to ) So as to open outward, the locking projection (51c-2) of the outer rib (51c) and the locking projection (55a) that was locked in the locking groove (51d-1) of the center bar (51d) is released together.

For this reason, the center stage 51d is not fixed and is inserted deeper into the inner insertion space 51c-1 of the outer rib 51c.

That is, the pinion button operating key 51 'that is vertically flowed in the state of losing the supporting force as described above is, as shown in Figs. 10 to 11B, the ratchet driving unit 50 and the driving means that are geared in series. It is impossible to transmit the rotational driving force to 40 so that the rotation of the rear wheel 30b is impossible.

As described above, when the jumping bike 1 jumps, the user interrupts the forward driving phenomenon by blocking the transmission of the rotational driving force of the rear wheel 30b or breaks the ratchet driving unit 50 due to the pressing force and the elastic force. This is to solve the problem.

Jumping bicycle according to the present invention, unlike the conventional bicycle that was used only as a means of transportation for a short-distance movement, the effect that can exhibit exercise, leisure activities through jumping, a plurality of auxiliary gear and a plurality of ratchets configured therein Wheel and a plurality of poles, a plurality of racks for driving the ratchet wheel, the pinion operating key configured at both ends, and the interlocking gear rotated together by the ratchet wheel, the drive gear integrally coupled with the drive sprocket, As the meshing gear is engaged with the interlocking gear of the ratchet driving unit, even if the user does not directly transmit power to the pedal, the rear wheel is rotated through the driving means, thereby enabling the bicycle to jump and move simultaneously.

In addition, the diameter of the front wheel and the rear wheel is formed in half or less than the general diameter to provide a larger flow space between the front frame, the rear frame, and the front fork of the steering portion, thereby maximizing the operation process for jumping It has the effect of making it possible.

In addition, the effect of allowing the user to enjoy the best exercise effect and leisure activity in any space and place through the jumping bike that can continue running with the above-mentioned jumping even if the separate equipment and space for sports and leisure are omitted. There is.

As described above, although the present invention has been described with reference to the above embodiments, it is not necessarily limited thereto, and various modifications may be made without departing from the scope and spirit of the present invention.

Claims (3)

A steering unit for steering a moving direction, a frame unit consisting of a front frame and a rear frame constituting a body, a front wheel and a rear wheel coupled to front and rear lower ends of the frame unit, and coupled to the frame unit and the rear wheel to rotate a rear wheel In a typical bicycle comprising a drive means consisting of a pedal and a drive sprocket and a crankshaft to, A drive gear integrally coupled to one side of the drive sprocket on the same axis and having a diameter somewhat smaller than the diameter thereof; A ratchet driving part of the driving means engaged with the driving gear to continuously rotate the driving gear; And, Jumping bicycle, characterized in that the front fork of the steering unit, the rear end of the front frame and the rear end of the rear frame is coupled to the upper end of the plurality of the shock absorbing jump jump jumper configured to further provide a buffer and jumping jump. The method of claim 1, The ratchet drive unit has an inverted Y " shape, the upper end of which is hinged to the rear of the front frame, and the rack formed through the inner and outer ends of the rack together with the space portion penetrated into the lower end is divided by the center of the front and rear widths. Driving operation key, A plurality of first and second ratchet wheels for one-way rotation and a plurality of pawls for controlling them, and a plurality of first circumferential surfaces are engaged with the first rack and the second rack of the pinion operating key, respectively. With 2 auxiliary gears, Jumping bicycle is rotated by the rotation of the first and second ratchet wheel, characterized in that it further comprises an interlocking gear for driving the drive sprocket by engaging coupling to the drive gear. The method of claim 1, Jumping bicycles, characterized in that the front wheel and the rear wheel is formed to a smaller size than the front, rear wheels of the ordinary bicycle to be made larger the flow space of the frame portion.

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