JPH089354B2 - Two-wheeled vehicles that can change the riding posture - Google Patents

Description

TECHNICAL FIELD The present invention provides a two-wheeled vehicle in which the riding posture can be changed, and significantly increases the added value of use of the two-wheeled vehicle.

2. Description of the Related Art In a conventional two-wheeled vehicle, in order to change the riding posture, it was necessary to adjust the saddle or the handle vertically or forward or backward, or to replace the saddle, handle or frame parts separately prepared. Moreover, the main purpose of this adjustment is to match the physique of the person who rides the position of the saddle and the handle, that is, the inseam size and arm length.
Also, regarding parts replacement, the meaning of changing the vehicle type is stronger than changing the riding posture, and it is not easy for the user to carry out on a daily basis due to the large number of steps. In addition, even in the case of adjustment and replacement of parts, as a result, it is only a weird thing that changes the mutual intervals of the saddle, the handle, the petal, etc., and the riding posture according to the present invention can be said to be changeable. There was no. That is, like the present invention, the saddle,
By attaching the handle, pedal, etc. to the swing frame and rotating it, the riding posture can be changed in a wide range and in a stepless manner, with the spacing between the saddle, handle, pedal, etc. maintained or hardly changed. Above all, a motorcycle that can be easily performed at any time is a new one that has never existed before.

Problems to be Solved by the Invention In a conventional two-wheeled vehicle, the optimum saddle position and steering wheel position are determined in consideration of the output performance and maneuverability corresponding to the purpose of use, especially the commonly used running speed, and the riding posture is determined by this. It is decided that the car model will be born. Therefore, the riding posture is fixed for each type of vehicle and cannot be changed, and there is no need for change, but the following problems have been pointed out.

(1) I am forced to run in the same riding posture for a long time, and I am tired of being monotonous.

(2) In the same riding posture, it is impossible to enjoy the entire traveling area freely because of the overloading during either low speed traveling or high speed traveling, or during climbing or descending.

Especially, bicycles are general practical town vehicles,
There are many types of vehicles such as cycling vehicles, sports vehicles, etc., and it is very convenient for the user to always obtain the vehicle type that suits the purpose of use, but on the other hand, the following problems have been raised.

(1) It is troublesome and inconvenient to select a vehicle type and change trains each time the purpose of use or driving mood changes.

(2) It is uneconomical to prepare a number of bicycles according to the purpose of use, and it is not possible in reality from the point of view of holding space.

Means for Solving the Problems This invention is to solve the many problems mentioned in the preceding paragraph and to manufacture a number of vehicle models in which the riding posture is determined in advance, in accordance with the conventional purpose of use and the traveling speed that is normally used. Abandoning the idea of letting the user select and use what is needed, we added a new unique function that allows you to change the riding posture each time to an optimal posture that suits your purpose and running speed. This was done with the intention of providing users with a motorcycle.

For this purpose, each time you change the purpose of use, traveling speed,
The saddle position L and the steering wheel position H, which determine the riding posture, are the saddle 1, the steering wheel 3, and the crank 2
It is necessary to change each while maintaining or almost maintaining the mutual interval. As a means for achieving the function simply and surely, the present invention provides a frame structure of a two-wheeled vehicle with a swing frame 5 for supporting a saddle 1, a handle 3, a crank 2, etc. ′ Is an assembly structure composed of two frames, a wheel frame 6 for supporting front wheels and rear wheels, which is supported in a swingable manner in the longitudinal direction of the vehicle body using the shaft 4, and the swing frame 5 is operated. This is made possible by rotating the saddle 1, the handle 3, the crank 2, etc. around the rotation center 4 '.

Action The structure and function of the "two-wheeled vehicle whose riding posture can be changed" according to the present invention will be described with reference to FIG. FIG. 1 is a side view showing an embodiment of a bicycle of a two-wheeled vehicle and also an explanatory view of a riding posture changing means, in which a turning center 4'is set approximately at an intermediate position between a saddle 1 and a steering wheel 3 for riding. The posture becomes the forward leaning posture X. The state in which the swing frame 5 is set at the saddle position = L and the handle position = H is shown.

The chain line shows the riding posture and the changing state of the saddle 1, the handle 3, and the crank 2 when the swing frame 5 is rotated backward around the rotation center 4 ', and X is the front. The leaning posture, Y represents the upright posture, and Z represents the backward leaning posture.

The structure will be described first. In the case of the present embodiment, the swing frame 5 supports the saddle 1, the handle 3 and the crank 2, and is supported by the wheel frame 6 on the shaft 4 at the center of rotation 4 '. Actuating lever 7'provided at the rear of the handle
The operation holding mechanism 8 (a disc brake mechanism is shown in the drawing, but a ratchet gear mechanism or the like is also conceivable, which is installed at the center of rotation 4'between the swing frame 5 and the wheel frame 6 by the operation of. ), The swing frame 5 can swing in the front-rear direction of the vehicle body about the rotation center 4'and can be held at any position.

Next, the function of changing the riding posture will be described. First, the operating lever 7'is manually moved to move the operating holding mechanism 8
When the swing frame 5 is moved rearward by using its own weight, the saddle 1, which is attached to it,
The handle 3 and the crank 2 are also centered on the rotation center 4 ',
Since they can be rotated in the same direction while maintaining the mutual interval, the saddle position L and the handle position H also change (in this case increase) in proportion to the swing angle of the swing frame 5. As a result, the riding posture is smoothly and steplessly changed from the forward leaning posture X to the upright leaning posture Y and the backward leaning posture Z. Therefore, when the actuating and holding mechanism is actuated again by using the actuating lever 7'and the swing frame 5 is held in the desired posture position, the vehicle can travel in a changed posture.

The present invention makes it possible to change the riding posture by such means. Also, how the riding posture changes and the amount of displacement are
By selecting the setting position of the rotation center 4 ', it is possible to make various changes as shown in FIGS. The steering wheel 3 is steered by the steering transmission mechanism 9 (a universal joint mechanism is used in this embodiment), and the petaling torque is transmitted by an idle chain wheel 10 provided at the center of rotation 4 '. , Using the chain 11, it was shown to the rear wheel.

Embodiment FIG. 2 is an embodiment of a motorcycle of a two-wheeled vehicle, in which the center of rotation 4'is set to the side of the step bar 15, and the swing frame 5 is a wheel fill frame 6 The operation holding mechanism 8 (a ratchet mechanism is shown in the drawing) installed between the vehicle and the
The case where it is set to the position is shown.

The chain lines show the positions of the saddle 1 and the handle 3 when the swing frame 5 is set in the rearwardly tilted posture Z. The swing frame 5 supports the saddle 1 and the handle 3, and is supported by the wheel frame 6 by the shaft 4 at a rotation center 4 '. When changing the riding posture, the operation holding mechanism 8
Using the operating lever 7'of (in this embodiment, lowering the operating lever 7'to disengage the ratchet from the wheel frame 6), the holding function is released, and the swing frame 5 is moved rearward using its own weight. Then, the saddle 1 and the handle 3 attached to this also rotate rearward about the rotation center 4 ', the riding posture changes to the rearward leaning posture, and it can be set to that position by returning the operating lever 7 to the original position. .

The steering wheel 3 is used to steer the front wheels via a steering transmission mechanism (a universal joint mechanism is shown in the drawing). The engine 12 is attached to the wheel frame 6 and the fuel tank 13 is attached to the swing frame 5, respectively. The wheel is shown attached to the wheel frame 6 via the cushion cylinder 14 and the arm 16.

FIG. 3 is a side view of an embodiment of the scooter of the two-wheeled vehicle, in which the rotation center 4'is set above the step 15 ', and the swing frame 5 is placed between the wheel frame 6 and the swing frame 5. The case where the operation holding mechanism 8 (a screw mechanism is shown in the drawing) that has been set is set to the position of the backward tilt posture Z is shown. The chain line shows the positions of the saddle 1 and the handle 3 when the swing frame 5 is set to the forward tilt posture X. The swing frame 5 supports the saddle 1 and the handle 3, and the wheel frame 6 is supported at the rotation center 4 '.
It is supported by the shaft 4. When changing the riding posture, the actuation handle 7 of the actuation holding mechanism 8 is turned and the swing frame 5 is moved forward, so that the saddle 1 and the handle 3 attached to this also move forward around the rotation center 4 '. By turning, the riding posture changes to the forward leaning posture, and it can be set at the desired position.

The steering wheel 3 is steered by a steering transmission mechanism (a universal joint mechanism is shown in the drawing). The engine 12 is attached to the wheel frame 6 and the fuel tank 13 is attached to the swing frame 5, respectively. The wheel is a wheel frame 6 via a cushion cylinder 14 and an arm 16.
The case where it is attached to is shown.

FIG. 4 is the same as in FIG. 1, in the case of a bicycle, the center of rotation 4'is set approximately at the center of the saddle 1, handle 3 and crank 2, and the displacements of the saddle, handle and crank are made approximately equal. It is a side view of the embodiment. The position of the rocking frame 5 is shown in a state where the riding posture is set to the backward tilting posture Z. The chain lines show the positions of the saddle 1 and the handle 3 and the crank 2 when the swing frame 5 is set in the forward tilted position.

The swing frame 5 includes a saddle 1, a handle 3, and a crank 2.
And is supported on the wheel frame 6 by a shaft 4 at a rotation center 4 '. Also, you can easily operate while running,
The actuating handle 7 provided near the handle 3 is turned, and the actuating and holding mechanism 8 (a worm mechanism is shown in the drawing) installed between the swing frame 5 and the wheel frame 6 is actuated to move the swing frame 5 to the front and rear of the vehicle body. By swinging the saddle 1, the handle 3, and the crank 2 in the direction of rotation 4 '.
By turning it around, the riding posture can be changed and the posture can be set to suit the purpose of use. The steering wheel 3 is steered by a steering transmission mechanism 9 (a wire cable mechanism is shown in the drawing), and the petaling torque is transmitted by an idle chain wheel 10 and a chain 11 provided at a rotation center 4 '. Shown is the case of telling the rear wheels.

FIG. 5 also shows the case of a bicycle, in which the center of rotation 4'is set at a substantially intermediate position between the saddle 1 and the crank 2, and the handle 3
FIG. 6 is a side view of an embodiment intended to relatively increase the displacement amount of FIG. The position of the swing frame 5 is shown in a state where the riding posture is set to the forward leaning posture X. The chain lines show the positions of the saddle 1, the handle 3, and the crank 2 when the swing frame 5 is moved backward and set in the backward tilted position. The swing frame 5 supports the saddle 1, the handle 3 and the crank 2, and is supported by the wheel frame 6 at a shaft 4 at a rotation center 4 '. Further, the operation handle 7 provided on the rear portion of the saddle 1 is rotated and installed between the swing frame 5 and the wheel frame 6 so as to be easily operated even while traveling. The operation holding mechanism 8 (a screw mechanism is shown in the drawing is shown, but a pressure cylinder mechanism or the like may be used) to swing the swing frame in the vehicle front-rear direction to rotate the saddle 1, the handle 3, and the crank 2. Moving center 4 '
Change the riding posture by rotating it around
It can be set in a posture that suits the purpose of use.

The steering wheel 3 is steered by the steering transmission mechanism 9
The universal joint mechanism is shown in the drawing, and the petaling torque is transmitted to the rear wheels via the idle chain wheel 10 and the chain 11 provided at the rotation center 4 '.

FIG. 6 is also a case of a bicycle, but is a side view of an embodiment in which the rotation center 4 ′ and the crank center 2 ′ are aligned. The position of the swing frame 5 is shown in a state where the riding posture is set to the upright posture Y. The chain lines show the positions of the saddle 1 and the handle 3 when the swing frame 5 is swung back and forth and the riding posture is changed to the forward leaning posture X or the backward leaning posture Z. In the case of the present embodiment, the swing frame 5 supports the saddle 1 and the handle 3, and is supported by the wheel frame 6 by the shaft 4 at the rotation center 4 '. The shaft 4 also functions as a crank shaft.

When the riding posture is changed, the operation holding mechanism 8 (shown in the drawing is a telescopic cylinder mechanism) installed between the wheel frames 6 of the swing frame 5 is controlled using the operation lever 7 ', and the swing frame is moved to the vehicle body. By swinging it back and forth, the saddle 1 and the handle 3 are rotated around the rotation center 4'to change the riding posture, and the desired posture can be set.

The steering wheel 3 is steered by the steering transmission mechanism 9
(In the drawing, a universal joint is shown), and the petaling torque is transmitted to the rear wheel through the chain 11.

FIG. 7 is also a side view of an embodiment in which the rotation center 4'is set near the pedal center 2'and the petal 2 is attached to the wheel frame 6 side and is not rotated in the case of a bicycle. The position of the rocking frame 5 is shown in a state where the riding posture is set to the backward tilting posture Z. The chain line shows the positions of the saddle 1 and the handle 3 when the swing frame 5 is moved forward and the riding posture is changed to the forward leaning posture X. Further, in the case of the present embodiment, the swing frame 5 is mounted with the saddle 1 and the handle 2 distant from the rotation center 4 ', and is supported by the shaft 4 on the wheel frame 6 at the rotation center 4'. An operation holding mechanism 8 (shown as a friction lock mechanism in the drawing) installed between 6 allows self-locking at a desired position. When the riding posture is changed, the holding force of the operating and holding mechanism 8 is weakened by using the operating lever 7 ', and the swing frame 5 is moved by utilizing one's own weight, so that the saddle 1 and the handle 3 are rotated at the center of rotation 4. ′
You can rotate it around to set it in the desired riding position.

In addition, steering of the front wheels by the steering wheel 3 is performed by the steering transmission mechanism 9
The universal joint mechanism is shown in the drawing, and the petaling torque is transmitted to the rear wheels via the chain 11.

This embodiment is an embodiment in which only two of the three elements of the saddle 1, the handle 3 and the crank 2 are attached to the swing frame 5 for rotation, and the rotation center 4'is the same as in this example.
When set near any of the saddle 1, handle 3, and crank 2, even if only two of the three elements are rotated,
Since the saddle position and the handle position can be changed in a state where the mutual distance between the three elements is hardly changed and there is no practical problem, the structure can be simplified by using such a means structure. effective.

FIG. 8 is also a side view of an embodiment in which the rotation center 4'is set near the saddle 1 in the case of a bicycle, and the saddle 1 is attached to the wheel frame 6 side and is not rotated. The position of the swing frame 5 is shown in a state where the riding posture is set to the upright posture Y. The chain line shows a state in which the swing frame 5 is moved forward and the riding posture is set to the rearward leaning posture Z. Further, in the case of the present embodiment, the swing frame 5 is far from the rotation center 4 ', two elements of the crank 2 and the handle 3 are attached, and the swing frame 5 is supported by the shaft 4 on the wheel frame 6 at the rotation center 4'. An operation holding mechanism 8 installed between the wheel frames 6 of 5 (the friction lock mechanism is shown in the drawing)
Allows you to self-lock in the desired position. When changing the riding posture, the operating lever 7 '
To weaken the holding force of the operation holding mechanism 8 and to use the weight of oneself to move the swing frame 5 so that the crank 2 and the handle 3 are turned around the turning center 4 ', and the desired ride is obtained. It can be self-locked to the posture position. The steering wheel 3 is used to steer the front wheels via the steering transmission mechanism 9 (a spline joint mechanism is shown in the drawing), and the petaling torque is transmitted to the rear wheels via the chain 11.

EFFECTS OF THE INVENTION As the effects of the present invention, the following points can be mentioned.

1) It is possible to provide a motorcycle that allows the user to change the riding posture at any time, without any adjustment or replacement of the saddle 1 and handle 3.

2) It is possible to provide a two-wheeled vehicle that can change the riding posture from a forward leaning posture X to an upright leaning posture Y and a backward leaning posture Z in a wide range without any step.

3) It has become possible to provide a two-wheeled vehicle in which the operating posture provided near the saddle 1 or the steering wheel 3 can be operated to easily change the riding posture while traveling.

4) Since the riding posture can be changed over a wide range, it has the functions of a cycling car and a sports car or a cycling car and a town car. We can provide high-performance bicycles with high added value.

5) Depending on the set position of the center of rotation 4, the variation of the riding posture and the range of variation are all different and diverse, so it is possible to provide a "two-wheeled vehicle in which the riding posture can be changed", each of which has its own characteristics and characteristics. became.

As described above, the two-wheeled vehicle in which the riding posture according to the present invention can be changed uses the unique and simple riding posture changing means. Therefore, as is clear in each embodiment, the two-wheeled vehicle has a simple structure and is excellent in function. In addition, you can enjoy a variety of running forms such as feeling the feeling of a cycling car with one bicycle, trying high speed driving like a sports car, and enjoying a relaxed running with a tilted posture that you could not expect before. It is a very unique invention with great effects, and it also increases the added value of the entire motorcycle.

[Brief description of drawings]

FIG. 1 shows a "two-wheeled vehicle whose riding posture can be changed" according to the present invention.
FIG. 7 is a side view of the embodiment of the bicycle of FIG. 6 and also serves as an explanatory view of the riding posture changing means. FIG. 2 is a side view of an embodiment of a motorcycle, FIG. 3 is a side view of an embodiment of a scooter, and FIGS. 4 to 8 are embodiments of a bicycle, in which the turning center 4'is set at a different position. The side view of each Example which was done. H …… Distance between the saddle and the steering wheel in the vertical direction (abbreviation: handle position) L …… Distance between the saddle and crank in the longitudinal direction of the vehicle (abbreviation: saddle position) X …… Forward leaning posture, Y …… Upright posture, Z …… Backward tilt posture, 1 ... saddle, 2 ... crank, 2 '... crank center, 3 ... handle, 4 ... axis, 4' ... rotation center, 5
...... Rotating frame, 6 ...... Wheel frame, 7 ...... Operating handle, 7 '... Operating lever, 8 ...... Operating holding mechanism,
9: Steering transmission mechanism, 10: Idle chain wheel,
11 …… Chain, 12 …… Engine, 13 …… Fuel tank, 14
…… Cushion cylinder, 15 …… Step bar, 15 ′…
… Step, 16 …… arm

Claims (1)

[Claims] 1. A motorcycle frame structure comprising a handle 3 and
Saddle 1, crank 2, or handle 3 and saddle 1
Or the handle 3 and the crank 2 are attached to the swing frame 5 and the same in the same direction as the shaft supporting the crank 2 at the crank center 2'and the shaft supporting the rear wheel, that is, in a parallel state. With the shaft 4 provided, the wheel frame 6 supporting the front and rear wheels is supported in a swingable state with the center 4'of the shaft 4 as the center of rotation in the same direction as when the crank 2 is swung. The assembly structure will consist of individual frames. In this case, the handle shaft of the handle 3 attached to the swing frame 5 and the fork shaft of the front wheel supported by the wheel frame 6 are connected by the steering transmission mechanism 9 so that even if the handle 3 swings, the front wheel is manipulated. Make sure that the orientation is correct. Further, in order to set the position of the swing frame 5 and regulate the movement, the operation handle 7,
Alternatively, the operation holding mechanism 8 provided with the operation lever 7'is installed, and the operation handle 7 or the operation lever 7'is operated to freely and steplessly swing forward or backward depending on how the weight is applied. , The structure can be set at any position. A two-wheeled vehicle that can change its riding posture and is characterized by such a structure and function.