JP3128380U - Roller swivel bicycle - Google Patents

Abstract

A roller-swivel bicycle with a roller like a roller skate is provided.
A main body frame 20 includes a seat pipe 21 and a seat post 23. A saddle 24 is placed on an upper portion of the seat post, and a horizontal handle 141 extends in front of the saddle 24. Further, a lower bracket 25 comprising a rear part extending obliquely and a front part extending horizontally is disposed at the lower part of the seat pipe 21, and a short pipe 26 having an internal pentagon is provided in the middle of the rear part. The pedal chain set 27 is incorporated in this short pipe. A rear fork 28 is connected to the back side of the lower bracket 25 and an intermediate portion of the seat pipe 21, and a rear end of the rear fork 28 is connected to a rear wheel 29. A guide plate 32 and a front wheel 33 are respectively provided at both ends of the lateral guide shaft 31 of the front wheel seat 30 and are coupled to each other by a parallel coupling portion.
[Selection] Figure 3

Description

  The present invention relates to a roller swivel bicycle, and more specifically, it is flexible whether a control post is attached or not so that various ways of riding can be enjoyed according to the preference of the rider. The present invention relates to a roller swivel bicycle that can be assembled with high performance.

FIG. 1 shows a conventional skate bike 10 in which a roller such as a roller skate is attached to a front wheel of a so-called skate bike.
This conventional motorcycle 10 has a vertically-long vertical V-shaped seat pipe 11 with a quick-release seat clamp 12 mounted on the upper portion thereof, and a seat post 13 with a saddle installed on the upper portion thereof is fitted and locked in a telescopic manner. It is like that.
A horizontal handle 141 extends in front of the saddle 14, and a pair of rear forks 15 are fixed to the back side of the intermediate portion of the seat pipe 11.
Each rear fork 15 is provided with a locking plate corresponding to the bottom thereof, and a rear wheel 16 is turnably connected to a terminal portion of the locking plate.
As a result, the upper portion of the seat pipe 11 is accurately positioned right above the front upper portion of the rear wheel 16. The lower part of the seat pipe 11 is bent forward and extends, and a short pipe having a pentagonal shape inside is attached to the front side of the middle point of the bent part, and the left and right pedals are attached to the short pipe. A chain set 18 that is attached and interlocked with the left and right pedals is assembled.
Further, the front wheel 19 is rotatably locked to the front end portion of the bent portion of the seat pipe 11.

  In order to change direction while driving on such a skate bike, the rider (user) leans his body while keeping his hand on the horizontal handle 141 disposed on the front side of the saddle 14. This is done by tilting one side with gravity and controlling the front wheel 19 to rotate left or right.

However, there are some deficiencies in the structure of such a conventional skate bike.
First of all, in order to turn to change direction, the rider's own body must be tilted to one side so as to control in the direction of the turn, which is quite cumbersome and inconvenient, Controlling the direction change function is quite difficult and inflexible.
Secondly, when the rider changes direction, the front wheel 19 is switched to rotate by a small angle, but this increases the turning radius considerably beyond the required turning radius. The skate bike 10 is awkward to ride, difficult to control, and riders can easily fall from the skate bike.
Third, riders change their skate bikes by simply shaking their bodies and changing their direction, just as they do with ordinary bicycles.
Fourth, since the upper portion of the seat pipe 11 is accurately positioned right above the front side of the rear wheel 16, the overall length of the skate / bike is considerably increased.
As shown by the dotted line in FIG. 1, even when the seat post 13 is lowered from a high position and packed together for packing or transportation, the height is still high in the conventional skate bike. Since the characteristics can be seen, extra packing material is required when packing, which increases the packing cost.
Fifth, because of this large volume, even if the bicycle is packed after being relatively small, it will occupy a large space for cargo when transporting skates and bikes, and transportation costs increase wastefully. Will be.

  Accordingly, the first object of the present invention is to enable a rider to change the direction of a roller swivel bicycle in a roller swivel bicycle comprising a main body frame, a front wheel seat, a connection pipe, and a control operation post. By simply swinging the control post to the left and right, you can control the turning direction of the main body frame without shaking the body, you can easily ride without effort, and you can also smoothly perform the direction change operation Another object of the present invention is to provide a roller turning type bicycle that can be controlled for multiple purposes.

  In the present invention, when the direction of the bicycle is changed, the other front wheel also moves in the same direction and at the same angle as one front wheel turns in one direction due to the parallel coupling action. A second object of the present invention is to provide a roller turning type bicycle that can be smoothly and flexibly and stably ridden because both wheels of the part are simultaneously switched in the same direction and turn with a considerably small turning radius.

  A third object of the present invention is to provide a roller turning type bicycle that can be assembled with or without a control operation post according to the rider's preference and riding conditions. When the post is not attached, the rider shakes his / her body to switch the direction of the bicycle. When the control operation post is attached, the rider holds the control operation post with one hand and shakes the grip. Because it becomes possible to control the turning direction, you can enjoy bicycle riding happily with various specifications.

  Furthermore, a fourth object of the present invention is to provide a roller swivel bicycle that can be easily folded to a small length, thereby saving the packing material and the packing cost very economically. .

  Further, the fifth object of the present invention is to make the entire package smaller in volume, thereby reducing the occupied area when packed and loaded and transported. It is to provide a roller swivel bike that can.

  A roller swivel bicycle according to claim 1 of the present invention is a roller swivel bicycle composed of a main body frame, a front wheel seat, a connecting short pipe, and a control operation post, and the main body frame includes a seat pipe, The seat post includes a quick release seat clamp fixed to an upper portion of the seat pipe, and a seat post. The seat post is elastically locked to the seat pipe by the quick release seat clamp, and a saddle is installed on the seat post. The lower part of the seat pipe is provided with a horizontal handle that extends forward, and the lower part of the seat pipe is composed of a rear part extending obliquely and a front part extending horizontally. The lower bracket portion is disposed, and a short pipe having an internal pentagon is disposed in the middle of the rear portion of the lower bracket. -The set is installed, the fork part of the rear fork part is fixed to the back side of the rear part of the lower bracket and the middle part of the seat pipe, and the rear wheel is pivotally attached to the rear end of the rear fork part. By doing so, the rear wheel and the pedal chain set are held at an appropriate distance from each other, and the seat pipe is accurately positioned between the rear wheel and the pedal chain set, A front wheel seat is welded to the front end of the lower bracket of the main body frame, and the front wheel seat is a pair of guide shafts that extend in the lateral direction and are symmetrically fixed to the left and right sides of the guide shaft via a turning axle. A horizontal U-shaped guide plate is provided, and a front wheel is pivotably attached to each of the left and right outer central portions, and is attached to both left and right ends of the upper rear portion of the guide plate. When the row connecting member is connected, both are connected to each other, and a connecting short pipe having a quick release clamp arranged on the upper part thereof is welded to the middle portion of the horizontal front portion of the lower bracket. The control operation post is detachably inserted into the pipe, and the control operation post is connected to the connection pipe having a quick release clamp disposed at the upper end and the connection pipe via the quick release clamp. And the grip part on the ball is attached to the upper part of the support rod 53. With the above configuration, the roller turning bicycle is equipped with a control operation post according to the user's preference. In either state or with the control operation post removed, it can be freely changed and used, allowing you to experience a variety of fun rides and changing the direction of the bicycle. It can be controlled smoothly, conveniently and easily, and both front wheels are turned together in the same direction at the same angle, so that the user can maintain a stable gravity without risk of falling off the bicycle And

The invention of claim 2 is characterized in that in the roller turning type bicycle according to claim 1, the guide shaft is formed so as to be inclined so that the front is low and the rear is high.
The invention of claim 3 is the roller turning type bicycle according to claim 1, wherein the connecting short tube is formed in a hollow cylindrical body having a short length.
According to a fourth aspect of the present invention, in the roller turning type bicycle according to the first aspect, the grip portion of the control operation post is formed in a ball shape.

  According to a fifth aspect of the present invention, in the roller turning type bicycle according to the first aspect, the control operation post is interlocked with a rear brake device attached to a rear wheel on one side of an upper portion of the support rod. The brake handle is installed, and the brake function can be applied by rotating the pedal in the reverse direction and the brake function can be applied. .

  The invention according to claim 6 is the roller swivel type bicycle according to claim 1, wherein the control operation post has a through-hole formed in each of the connecting pipe and the support rod to a predetermined position, and both ends of the brake cord. Are passed through each through hole, one end of the cord is connected to the rear brake device, the other end is connected to the brake handle, and the brake cord is hidden inside the control operation post. It is characterized by that.

  The invention of claim 7 is the roller turning type bicycle according to claim 1, wherein the lower bracket of the main body frame is curved upward in an arch shape.

  The invention according to claim 8 is the roller turning type bicycle according to claim 1, wherein a pair of support arms are symmetrically arranged on the outer periphery of the front surface of the guide shaft of the front wheel, and the support shaft is provided therebetween. An auxiliary wheel is installed in the turning recess, and the auxiliary wheel makes it easy to travel by a normal bicycle operation even on a bumpy road.

In the roller turning type bicycle of the present invention, the front wheel part is a roller skate-like roller, and the rollers of both wheels are connected by a parallel connecting member. By turning at the same angle at the same time, stable direction change is possible, and because the front wheels are two-wheeled rollers, there is a sense of stability when driving a bicycle, which is especially practiced for beginners of bicycles. When the control operation post is attached to the connecting short pipe, there is no need to tilt the user's own body and change the direction. Since it only needs to move in the direction you want to change, you can prevent accidents such as falling down from the bicycle by breaking the balance of the body, you can run safely.
In addition, when an auxiliary wheel is added between both wheels of the front wheel portion, the sense of stability is further increased, and it is possible to safely board the vehicle on a rough road by normal driving.

Hereinafter, the present invention will be described in detail with reference to the drawings and examples.
2 is an exploded perspective view showing a first embodiment of the roller turning type bicycle of the present invention, FIG. 3 is an assembled perspective view of the first embodiment of the present invention, and FIG. 4 is a second embodiment of the present invention. FIG. 5 is an assembled perspective view of the third embodiment of the present invention, FIG. 6 is an assembled perspective view of the fourth embodiment of the present invention, and FIG. 7 is a fifth perspective view of the present invention. It is an assembly completion perspective view of an embodiment of

(Embodiment 1)
With reference to the exploded perspective view of FIG. 2, a roller turning type bicycle according to a basic embodiment of the present invention will be described.
The roller turning type bicycle of the present invention includes a main body frame 20, a front wheel seat 30, a short connection tube 40, and a control operation post 50.

  The main body frame 20 includes a seat pipe 21, a quick-release seat clamp 22 attached and fixed to the upper portion of the seat pipe 21, and a seat post 23 that is fitted and retractable from an upper end opening of the seat pipe 21. The seat post 23 is locked and fixed at a desired position of the seat pipe 21 by a quick release seat clamp 22, and a saddle 24 is installed at an upper end portion thereof. The saddle 24 is provided with a horizontal handle 241 extending horizontally forward at the lower part thereof.

  A lower bracket 25 that is bent and extended toward the front of the seat pipe 21 is disposed at the lower portion of the seat pipe 21. The lower bracket 25 has a shape including a rear portion that extends and tilts, and a front portion that extends horizontally, and a short pipe 26 having a pentagonal shape inside is fixed to the middle of the rear section. A pedal chain set 27 comprising a left and right pedal 27a and a chain 27b interlocking with the rear wheel 29 is engaged and disposed on both sides of the pedal.

  Furthermore, one of the bifurcated portions of the rear fork 28 that pivotally supports the rear wheel is fixed to the rear side of the rear portion of the lower bracket 25, and the other is connected to the middle portion of the seat pipe 21. The rear wheel 29 is pivotally supported at the rear end portion so as to be able to turn. Thus, the rear wheel 29 and the pedal chain set 27 are held at an appropriate distance from each other so that the seat pipe 21 is accurately positioned between the rear wheel 29 and the pedal chain set 27. Become.

In the front wheel seat 30, a horizontal U-shaped guide plate 32 is fixed to both left and right sides of a guide shaft 31 that extends in the left and right lateral directions and has a front surface that is low in the front and high in the rear, via a turning axle 321. In addition, a front wheel 33 is turnably attached to each of the left and right side outer central portions.
And the parallel connection member 34 is connected to the right and left both ends of the upper surface rear part of the guide plate 32, and both will be in a connection state by this.

  Further, a short connecting tube 40 having a hollow short cylindrical body with a quick release clamp 41 disposed on the upper portion thereof is disposed in the middle of the horizontal front portion of the lower bracket 25, and the connecting short tube 40. The control operation post 50 is inserted and installed.

  The control operation post 50 includes a connection pipe 51 in which a quick release clamp 52 is disposed at an upper end portion, and a support rod 53 that is locked to the connection pipe 51 through the quick release clamp 52, and the support rod. A grip portion on the ball is attached to an upper portion of 53.

  To connect the front wheel seat 30 and the main body frame 20 as shown in the completed view of FIG. 3, the end of the horizontal front portion of the lower bracket 25 of the lower frame 25 of the main body frame 20 is connected to the rear center portion of the guide shaft 31 of the front wheel seat 30. The bottom surface of the connecting short tube 40 is welded to the center of the top surface of the horizontal front portion. When the connecting pipe 51 portion of the control operation post 50 is inserted into the connection short tube 40 and then locked to the connection short tube 40 by the quick release clamp 41, the control operation post 50 is assembled to the connection short tube 40. This completes the assembly of the roller swivel bicycle of the present invention which is easy to control and can be used in various ways.

  When riding the roller turning type bicycle of the present invention, the control operation post 50 may be mounted on the rider according to the rider's preference, or it may be used without being mounted.

  In the case of the specification in which the control operation post 50 is fitted in the short connecting tube 40, the rider holds the horizontal handle 241 installed on the front side of the bottom of the saddle 24 with one hand and the control operation post with the other hand. 50 grips 54 are gripped. To change the direction of a roller-swivel bicycle, if the control post 50 is shaken directly to the left or right with the hand holding the grip 54, gravity is applied to one side without moving the body. . The connecting short tube 40 to which the control operation post 50 is connected is welded integrally to the main body frame 20, and the guide shaft 31 of the front wheel seat 30 is coupled to the front end of the lower bracket 24 of the main body frame 20. For example, when the total weight is switched diagonally to the right, the guide shaft 31 is also tilted to the right at the same time, whereby the guide plates 32 on both sides of the guide shaft 31 are also turned to the right via the turning axle 321.

  At the same time, the parallel connecting member 34 is also energized synchronously, and the two front wheels 33 arranged symmetrically are pushed out to rotate to the right side at the same angle. A small turning radius is guaranteed.

  As described above, the roller swivel type bicycle of the present invention can be operated smoothly and freely, and is suitable for beginners to practice riding a bicycle.

  In another case, when the control operation post 50 is removed from the connecting short tube 40, the rider puts one hand on the horizontal handle 241 disposed on the front side of the saddle 24 and swings the body back and forth to move the front wheel seat. By controlling the 30 front wheels 33, the vehicle can be turned leftward or rightward. Therefore, the roller-swivel type bicycle having such a specification is suitable for a beginner rider who can experience riding freely.

  In order to make the assembled roller swivel bicycle into a small and compact state, loosen the quick release clamp 52 installed on the connecting pipe 51 of the control operation post 50, and the support rod 53 is lowered to the lowest position. Be able to. Further, when the quick release clamp 41 of the connection short tube 40 is also loosened, the control operation post 50 itself is detached from the connection short tube 40 and can be placed side by side on the main body frame 20. Then, when the quick-release seat clamp 22 of the seat pipe 21 is removed, the seat post 23 is adjusted to move downward. The seat pipe 21 is accurately positioned between the rear wheel 29 and the pedal chain set 27, and the rear wheel 29 and the pedal chain set 27 are appropriately separated from each other. When it is lowered and accommodated in the seat pipe 21, the lowermost end portion of the seat pipe 21 fits between the rear wheel 29 and the pedal chain set 27 when positioned at the lowest position.

If the roller-swivel type bicycle is packed in a small size for packing and transportation in this way, the overall height becomes very low, or the seat post 23 is removed as described above and placed next to the main body frame 20. Thus, the bulk of the roller turning type bicycle can be further reduced.
(Embodiment 2)
FIG. 4 shows a second embodiment of the roller turning type bicycle of the present invention. In this embodiment, a brake handle 531 is disposed on one side of the upper portion of the support rod 53 of the control operation post 50 of the roller turning type bicycle of the first embodiment, and the brake device is attached to the rear wheel 29. In cooperation with H.291, the bicycle is braked.
In addition to the function of stopping the pedal by pushing the pedal backwards, adding a brake handle 531 for beginners who are accustomed to handbrake when operating the brake can provide a double brake function. it can.
(Embodiment 3)
Furthermore, as shown in FIG. 5, in the third embodiment, through holes 511 and 532 are formed at predetermined positions of the connecting pipe 51 and the support rod 53, respectively, and both ends of the brake cord 292 are provided in these through holes, respectively. By connecting to the brake device 291 and the brake handle 531 of the rear wheel through the part, it can be hidden and installed inside the control operation post 50.
(Embodiment 4)
FIG. 6 shows Embodiment 4 of the roller turning type bicycle of the present invention. The lower bracket 25 ′ of this embodiment is formed in a shape that is curved upward in an arch shape, and its front end is directly welded to the center of the upper surface of the guide shaft 31 of the front wheel seat 30. The bottom end of the connection short tube 40 is welded to the front end surface of the lower bracket 25 ′, and the connection pipe 51 of the control operation post 50 is inserted into the connection short tube 40 and locked by the quick release clamp 41. This completes a roller-swivel bicycle that is easy to control and offers a variety of fun riding experiences.

Further, the guide shaft 31 of the front wheel seat 30 is provided with a pair of support arms 35 that are disposed symmetrically and spaced apart at the center portion of the front surface thereof, and the auxiliary wheel 352 is formed in a recess formed between these arms. Is installed. These auxiliary wheels 352 provide a further sense of stability and make it easy to move forward even if the roller-swivel bicycle is normally driven in a bumpy road condition.
(Embodiment 5)
FIG. 7 shows a fifth embodiment of the roller turning type bicycle of the present invention. In this embodiment, a brake handle 531 is installed on one side of the upper portion of the support rod 53 of the roller turning type bicycle according to the fourth embodiment, which cooperates with the rear brake device 21 installed on the rear wheel 29. In addition to the graying operation of stopping the bicycle by pedaling behind it, it is also possible to stop with the brake handle 531, thereby providing a double brake function.

  In the second to fifth embodiments described above, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

The perspective view which shows the state at the time of showing the conventional skate bike and a broken line part making a bicycle low and gathering it small. The exploded perspective view showing the example of the roller turning type bicycle of the present invention. The assembly completion perspective view of 1st Embodiment of the roller turning type bicycle of this invention. The assembly completion perspective view of 2nd Embodiment of the roller turning type bicycle of this invention. The assembly completion perspective view of 3rd Embodiment of the roller turning type bicycle of this invention. The assembly completion perspective view of 4th Embodiment of the roller turning type bicycle of this invention. The assembly completion perspective view of 5th Embodiment of the roller turning type bicycle of this invention.

Explanation of symbols

20 Body Frame 21 Seat Pipe 22 Quick Release Seat Clamp 23 Seat Post 24 Saddle 241 Horizontal Handle 25 Lower Bracket 27 Pedal Chain Set 28 Rear Fork 29 Rear Wheel 30 Front Wheel Seat 31 Guide Shaft 32 Guide Plate 321 Swivel Axle 33 Front Wheel 34 Parallel connecting member 40 Short connection pipe 41 Quick release clamp 50 Control post 51 Connection pipe 52 Quick release clamp 53 Support rod

Claims (8)

A roller swivel bicycle,
The roller turning type bicycle is composed of a main body frame, a front wheel seat, a connecting short pipe, and a control operation post.
The main body frame includes a seat pipe, a quick release seat clamp fixed to an upper portion of the seat pipe, and a seat post, and the seat post is elastically locked to the seat pipe by the quick release seat clamp. A saddle is installed in the upper part, and a horizontal handle that extends forward is arranged in the lower part of the saddle, and a lower part of the seat pipe extends rearward and extends obliquely toward the front. And a lower bracket portion formed from a horizontally extending front portion, and a short pipe having an internal pentagon is arranged in the middle of the rear portion of the lower bracket, and a pedal chain, The set is installed, and the fork part of the rear fork is fixed to the rear side of the rear part of the lower bracket and the middle part of the seat pipe. The rear wheel is pivotally attached to the rear end of the rear section so that the rear wheel and the pedal chain set are held at an appropriate distance from each other, and the rear wheel and the pedal chain set are The seat pipe is accurately positioned in the
A front wheel seat is welded to the front end of the lower bracket of the main body frame, and the front wheel seat is a pair of guide shafts that extend in the lateral direction and are symmetrically fixed to the left and right sides of the guide shaft via a turning axle. A horizontal U-shaped guide plate is provided, a front wheel is pivotably attached to each of the left and right outer central portions, and parallel connecting members are connected to both left and right ends of the upper rear portion of the guide plate. Is connected,
Furthermore, a connecting short pipe with a quick release clamp disposed on the upper part is welded and arranged in the middle of the horizontal front part of the lower bracket, and a control operation post is detachably inserted into the connecting short pipe. Become
The control operation post includes a connection pipe having a quick release clamp disposed at an upper end portion, and a support rod locked to the connection pipe via the quick release clamp. The upper grip is attached,
With the above-described configuration, the roller-swivel bicycle can be used by changing freely regardless of the user's preference, with the control operation post attached or with the control operation post removed. In addition to being able to experience a comfortable ride, the bicycle turning operation can be controlled smoothly, conveniently and easily, and both front wheels are turned together in the same direction at the same angle, so the user can A roller-swivel bicycle characterized by being able to maintain a stable gravity without the risk of falling off.   2. The roller turning bicycle according to claim 1, wherein the guide shaft is formed to be inclined such that the front is low and the rear is high.   2. The roller turning bicycle according to claim 1, wherein the connection short pipe is formed in a hollow cylindrical body having a short length.   The roller turning bicycle according to claim 1, wherein the grip portion of the control operation post is formed in a ball shape.   The control operation post has a brake handle installed on one side of the upper part of the support rod so as to be interlocked with the rear brake device mounted on the rear wheel. The roller turning type bicycle according to claim 1, wherein the roller turning bicycle according to claim 1 has a double brake function by being able to be braked by a handle together with a brake function to be performed.   The control operation post has through holes in the connection pipe and the support rod to the predetermined positions. Both ends of the brake cord are passed through the through holes, and one end of the cord is connected to the rear brake device. 2. The roller turning type bicycle according to claim 1, wherein the other end is connected to the brake handle, and the brake cord is concealed inside the control operation post.   The roller rotating bicycle according to claim 1, wherein the lower bracket of the main body frame is curved upward in an arch shape. The front wheel guide shaft has a pair of support arms arranged symmetrically outside the intermediate portion of the front surface of the front wheel, and an auxiliary wheel is installed in a turning recess provided between the arms. 2. The roller turning type bicycle according to claim 1, wherein the bicycle can be easily driven by a normal bicycle operation even in the state described above.