Bogie frame

Abstract

To provide a bogie frame that enables a kick skater to run over a step when colliding with the step and can relax impact when the skater runs over the step, which can eliminate a risk that the kick skater may stumble on the step and fall because a diameter of a front wheel of the skater is small.SOLUTION: Arms are joined to a lower end of a handle shaft, shafts of bogie frames are provided on lower ends of the arms, and the bogie frames are joined to each other through the shafts. A front wheel is provided on front ends of the joined bogie frames. The shafts of the bogie frames are provided at a position lower than an axle of the front wheel, which can generate force for lifting up the front wheel, when the front wheel collides with a step. This enables the front wheel to run over the step, although a diameter of the front wheel is small. Further, up-and-down motion of the front wheel is reduced by half and transmitted to the arms, through the bogie frames. This can relax impact when a kick skater collides with the step.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention can be applied to any vehicle, such as a kick scooter, an electric kick scooter, a bicycle, a motorcycle, or a tricycle. [Background technology]

[0002] This invention uses a bogie suspension. There have been many examples of bogie mechanisms in the past. However, there have been no examples of using casters like in this invention. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special publication No. 57-501275 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention will be explained using an example of a kick scooter. The diameter of the front wheel of a kick scooter is small, so there is a risk of tripping over a step and falling. However, making the front wheel of a kick scooter larger would lose the appeal of the kick scooter as a small, lightweight vehicle.

[0005] Therefore, an object of the present invention is to enable a kick scooter to overcome a step when it hits it, and to reduce the impact when it overcomes the step, without increasing the size of the front wheel. [Means for solving the problem]

[0006] In the kick scooter of the present invention, the front wheel is not directly connected to the handle shaft. There is an arm connected to the lower end of the handle shaft, and the lower end of that arm is connected to the bogie frame via the bogie frame shaft. The front wheel is located at the front end of the bogie frame, and the caster is located at the rear end of the bogie frame.

[0007] The front wheel bearing is located higher than the bogie frame axle, so when the front wheel hits a step, a force is generated to lift the front wheel, allowing the front wheel to overcome the step even if its diameter is small.

[0008] Furthermore, the bogie frame halves the up and down movement of the front wheels and transmits it to the arms, which reduces the impact when hitting a bump.The casters also allow the front wheels to move freely by operating the handle. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a side view of an embodiment of the present invention. [Figure 2] FIG. 2 is an enlarged view of the bogie frame portion of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION [Example]

[0010] FIG. 1 is a side view of an example in which the present invention is applied to a kick scooter.

[0011] In the kick scooter of the present invention, the front wheel 10 is not directly connected to the handle shaft 2. There is an arm 12 connected to the lower end 11 of the handle shaft 2, and the lower end of the arm 12 is connected to the bogie frame 8 via a bogie frame bearing 14. The front wheel 10 is located at the front end of the bogie frame 8, and the caster wheels 9 are located at the rear end of the bogie frame 8.

[0012] The front wheel bearing 13 is located higher than the bogie frame bearing 14, so when the front wheel 10 hits a step, a force is generated to lift the front wheel 10. This allows the front wheel 10 to overcome the step even if its diameter is small.

[0013] Furthermore, the bogie frame 8 halves the up and down movement of the front wheels 10 and transmits it to the arms 12. This reduces the impact when hitting a step. Furthermore, the presence of the caster vertical bearings 15 allows the front wheels 10 to move freely by operating the handle.

[0014] Figure 2 is an enlarged view of the bogie frame. [Industrial Applicability]

[0015] The present invention can be applied to any vehicle, such as a kick scooter, an electric kick scooter, a bicycle, a motorcycle, or a tricycle. [Explanation of symbols]

[0016] 1. Handlebars 2.Handle shaft 3. Deck frame 4. Deck 5. Rear wheel fork 6. Rear wheel 7. Steering wheel bearing 8. Bogie Frame 9. Caster wheels 10. Front wheel 11. Connection between handle shaft and arm 12. Arm 13. Front wheel bearing 14.Bogie frame bearings 15. Caster vertical bearing 16. Caster fork

Claims

1. A vehicle characterized by a bogie frame with front wheels.

2. 2. The vehicle of claim 1, wherein the bogie frame has casters.

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