JP3107685U - A device that eliminates the difference between inner wheels when driving a front-wheel drive vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate an inner ring difference that can be said to be a fate when a vehicle is driven by mounting a caster auxiliary wheel with a lift according to the present invention.
The present invention is effective only when a four-wheeled vehicle produces an inner wheel difference when traveling, and makes use of the function of an electric hydraulic lift to land a caster auxiliary wheel while simultaneously driving a rear wheel. The vehicle balance due to three-point contact helps to replenish the fine balance after the surface rises, so safety is ensured during that time, and the traveling speed is within about 5 km . When the running is not concerned about the difference between the inner wheels, the auxiliary wheels are stored in the original state by the lift.
[Selection] Figure 3

Description

  The present invention is a device that uses the 360-degree rotation function of caster wheels to eliminate inner ring differences that occur at narrow intersections and in and out of garages.

  If it is a triangular figure, it is a decisive plane, and the rotational movement is based on the principle of possible, and is combined with the free characteristics of 360-degree rotational traveling movement of caster type wheels.

  The fatal inner wheel difference of four-wheeled vehicles has become a heavy burden for driving training on narrow roads and garage intersections, which also causes traffic accidents. Temporarily (when necessary) the four-point grounding of the car is turned into a three-point grounding to enable rotational movement, thereby eliminating the inner ring difference.

  The present invention creates a three-wheel running state by attaching a caster auxiliary wheel with a lift to the center of the rear wheel shaft of an automobile and lifting the rear wheel by a lift and landing a caster wheel at the same time only when necessary. At this time, lifts that control the sag by the rear wheel shock absorbers are mounted on both sides of the rear wheel.

  The braking device for caster type wheels was an external input. To support 360-degree rotation (referring to the braking system for small commercial caster wheels)

  The lift is operated at the electrohydraulic driver's seat. Switch on about 30m before entering the intersection.

  By eliminating the inner ring difference, it is expected that bending operation and garage operation in a narrow alley will be very smooth and secure, and demand for women and the elderly will be further expanded.

  A drastic improvement in safety is expected with promise of a reduction in personal injury and property damage accidents due to the inner ring difference.

  The equipment of the present invention can be easily and inexpensively installed on a precursor vehicle currently on the market.

  Ease of operation of the car due to the three-wheel grounding Safety is further enhanced. It is possible to park even where it was impossible until now, and the economic effect of expanding demand is expected.

  By using the caster type auxiliary wheel of the present invention, it is possible to tow in the event of an accident, and no request for a tow truck is required.

  In case of an accident such as puncture repair, this auxiliary wheel with lift is used.

A series of electric switches during driving allows the lift to be raised and lowered, but the operating status of the power switch for that purpose is clearly indicated to the driver (flashing, warning sound). Caster wheels ensure safe driving Select the material function type. The tires should be made of no puncture material.
The function action points of the main lift and the sub-lift (for both rear wheel control) are set in advance with sufficient margin. (To respond to changes)

  Since the present invention cannot be implemented with the actual product, it was implemented with a model. Using a commercially available plastic model, a prototype model car fitted with casters in a state where the lift was lowered was remodeled to try a theoretically possible driving situation with the model car. Although we could not experiment with the fine functions of the front wheel drive, we could achieve the expected results even with the prototype model car. The attached drawing FIG. 3 will be described below. P is the trajectory of the tangent line PQ1 on the circumference having the radius OP at the center of the front axle, and the traveling state of the vehicle body. It becomes Q1-Q2-Q3 as a run locus of a rear caster wheel.

Side view when running with the device Plan view of the car of the present invention It is the left turn driving situation of the car of the present invention. It shows the transition of the movement of the automobile when the automobile of the present invention is parked and started in a very narrow space.

Explanation of symbols

A Left front wheel B Right front wheel C Left rear wheel D Right rear wheel Q Caster wheel Q1, Q2, Q3 Caster wheel movement position O Center of rotation of the car P Center of front wheel axle L Caster lift SL Rear wheel auxiliary lift

Claims (1)

By attaching a caster auxiliary wheel with a lift to the center of the rear wheel axle of a front-wheel drive vehicle, the rear wheel is lifted, and at the same time, the auxiliary wheel is grounded. A device that removes the difference between the inner wheels while traveling by enabling movement.

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