JP6174772B1 - A safe three-wheeled bicycle that has a structure that allows the baby stroller to be removed. - Google Patents

Abstract

[Problem] At present, there are mostly two-wheeled bicycles in the market, and only a part of the three-wheeled bicycles are equipped with luggage compartments. Most users know that two-wheeled bicycles can fall over in the unlikely event. A stroller based on a tricycle that prevents accidents and is difficult to tip over is proposed. Normally, it is used as a three-wheeled bicycle. When used as a stroller, the bicycle stand 1 is first set up and unlocked with a one-touch lever handle, and the bicycle driving wheel gear 2 and the rear wheel driving axle coupling gear 3 are released. [Selection] Figure 1

Description

(Preliminary explanation)
Currently, many housewives are using two-wheeled bicycles in their daily lives to bring their young children on two-wheeled bicycles, pick them up at a nursery school, or shop at a supermarket. In the unlikely event of an unforeseen accident, a two-wheeled bicycle is in danger of falling. It is a vehicle focused on making it easier to use a tricycle that is more difficult to fall than a two-wheel bicycle.
Therefore, according to the purpose of use, the three-wheeled bicycle and the rear-wheeled four-wheel baby stroller can be used separately.
(1) A three-wheeled bicycle that is hard to tip over with a new mechanism type stroller.
(2) A type that connects a special stroller specification product to the existing three-wheeled bicycle.
(3) A type that attaches the stroller currently in use to a tricycle that is difficult to tip over with a dedicated mounting bracket.
Specifically, it is necessary to use a three-wheeled bicycle and a four-wheeled baby stroller separately according to the purpose of use, and it is necessary to attach and remove the three-wheeled bicycle and the four-wheeled baby stroller with one touch easily. It is a safe vehicle for a three-wheeled bicycle that can be used as a seat for infants, a three-wheeled bicycle with a luggage compartment, and a foldable four-wheeled baby stroller when removed. . It is also a multi-purpose bicycle that allows you to put your shopping baggage in the space for children in a four-wheel stroller. If the child grows up and no longer needs it, it can be turned into a luggage bag on the rear wheel.

The existing two-wheeled bicycle easily falls down in the event of an accident, and in the event of an emergency, it focuses on improving helmets that protect the heads of children and infants in case of a fall.
In this case, the basic idea is that there is a fall, and even if you have children or toddlers on the ground first, you should think based on a safe bicycle that is difficult to fall. First, release the lock with safety device and attach / detach with the one-touch lever handle.If necessary, it can be used as a three-wheeled bicycle or a foldable four-wheeled baby stroller. is there.
The problem is how the present invention makes it easy for women to easily and easily and easily attach and detach the structure.

Even if you know that it is always dangerous to attach a child seat to a two-wheeled bicycle and drive an infant, etc., you are always careful, so if you are overconfident that you are okay It is almost. Although it is not on the surface in reality, there is a considerable fall accident. In recent years, more and more people are walking while looking at smartphone images and riding on bicycles while looking at smartphone images.
Traditional products include two-wheeled bicycles with luggage compartments, three-wheeled bicycles with luggage compartments, and products with seats that can be used for infants on the front wheels. Separately, strollers have their own products with single-seat and double-seat baby seats. Therefore, taking advantage of each feature, a product that has been developed to make it easy to use a folding baby stroller as a separate product, based on a completely different three-wheeled bicycle that is difficult to fall, and a structure that can be attached and detached with a new type of safety device It is.

JP-A-11-180369

At present, there are many other cases of multifunctional bicycles in published patent publications, such as the concept of connecting a wheelchair to the front wheels as in JP-A-11-180369, and a structure for connecting a baby stroller or luggage basket. The origin of the present invention, which is structured from a completely different idea, is completely different from the original case.
The basis of the present invention is a structure based on a tricycle that is difficult to fall down to prevent the danger of unforeseen circumstances.

Bicycles have one and two front wheels, one and two rear wheels, and a stroller-type front-wheel two-wheeler is not a little stable. Therefore, considering the safest bicycle that is hard to fall down, it was appropriate to use one front wheel and two rear wheels.
Basically, if a vehicle stops with only two wheels, it will fall over immediately. The four-wheeled vehicle is most difficult to tip over, but it is often unusable. Therefore, the present invention is a development of a three-wheeled bicycle adapted to various actual circumstances, and is a safe vehicle for users of ordinary bicycles and strollers.
If you try to lower the stroller seat between the rear wheels, the width will increase accordingly, so the stroller seat was raised on the wheel to make the rear wheel width the same as the seat width.
In order to make it easy to use the bicycle for multiple purposes, the rear wheel axle must be separated and independent, so the structure is equipped with a rear wheel two-wheel support stabilizer with strength to support the weight on the axle.
(1) First of all, a bicycle with the highest priority on safety is used as a base so that it doesn't fall as much as possible when a child is put on it, and a lock function is adopted so that the rear wheels never come off while driving the bicycle. . To make it easier to use the stroller, the folding stroller can be easily attached and detached with a one-touch attachment lever handle with a safety device.
(2) When using the rear wheel as two wheels and when using it as a normal one, it is necessary to separate the axle structurally, so a structure with a support stabilizer that supports the weight of the rear wheel and the loading platform is adopted. .
(3) Since it is necessary to separate the axles of the stroller's two wheels and the rear wheels of the unicycle that transmit the bicycle pedal rotation to the rear wheels for driving, it is surely transmitted even if the drive rotation is replaced with each other. The shape and function of the gears and axles are made to be similar to the driving gears for driving the rear wheels.

(1) The conventional two-wheeled bicycle cannot avoid the risk of falling to an unexpected situation when an infant or child is on it, and is basically not a safe vehicle. The present invention is a safe and secure vehicle with the highest stability that can avoid a fall because it is a three-wheeled bicycle even if an unexpected situation occurs.
(2) Next, when using a foldable stroller-specific vehicle as a stroller, use the rotation of the roller above the detachable slide guide by lowering the two diagonal pipes on the left and right sides of the bicycle housing. If the rear part of the bicycle is shifted, the stroller can be easily detached. This enables even a weak woman to easily release the lock mechanism and place the rear part of the bicycle on the detachable slide guide under the stroller seat. It has a structure that is surely easy to detach. By making it possible to attach and detach and unite with a one-touch lever handle with a safety device, shopping, nursery school and kindergarten children can be safely picked up.
(3) Compared to having two two-wheeled bicycles and two strollers separately, the cost is lower, and the stroller is foldable so there is no problem when using public vehicles such as trains. It can be put on and it is saved even if the storage space is small.
(4) Suspension with shock absorber is adopted to prevent the accidental fall to the maximum extent and to improve the comfort of infants, etc., and the rear wheels of the two wheels are made 16 to 14 inches in size. This product has a total length of 1600 mm and a width of 600 mm, which is a size that conforms to the Road Traffic Law.

Front view and side view of a three-wheeled bicycle with a folding stroller. A top view of a three-wheeled bicycle with a folding stroller. The top view and front view of a folding baby stroller. The front view of the state only of the front wheel which removed the folding stroller. The front view and perspective view of the state which removes a folding stroller. With the stroller on the rear wheel removed and the luggage basket attached. This type connects a stroller to an existing three-wheeled bicycle. The mechanism of the detachable lever handle on the rear wheel and the detachment of the axle connecting gear. The perspective view which attaches one wheel to a rear wheel and makes it an ordinary bicycle. The figure of the attachment / detachment slide guide for attaching / detaching the bicycle and the stroller. The perspective view of the function which folds a baby stroller.

The basics of the present invention are based on a three-wheeled bicycle that can carry a child, such as an infant, with a high level of safety, so that it can be replaced with a shopping bag, or it can be used as a stroller by removing the rear wheels. In addition, women can easily remove and assemble, make the material as light and cost as possible, and make it the safest vehicle.
(1) When using the baby stroller separately from the bicycle, the screws that fix the two diagonal pipes on the left and right sides that support the drive wheel gear under the saddle of the bicycle shown in FIG. Loosen and slide the pipe down to disengage the 12 stroller fixing hooks. Remove the 20 safety cover and turn the 15 detachable lever handle counterclockwise. Is pulled up by the force of the spring, and the two drive wheel gears on the left and right are moved inward by the 22 drive wheel gear connection bar guides, and separated from the three rear wheel drive axle connection gears.
(2) To fold the stroller, turn the stroller folding lever handle of FIG. 11 to the left, shift the reinforcement cover of 24 to the left, and lift the folding lever handle to fold the stroller.

1, stand.
2. Drive wheel gear with lock and brake (two on the left and right).
3. Axle connecting gear for driving rear wheels.
4, slide guide to remove baby stroller.
5. Rear wheel 2 wheel support stabilizer.
6, stroller seat.
7. Detachable roller.
8, stroller folding lever handle.
9, handle down button
10. Bar for preventing dropout.
11, seat belt.
12, stroller fixing hook.
13. Folding front wheel.
14, brake lever.
15. Detachable lever handle.
16, Support base with shock absorber.
17, rear wheel of stroller.
18. Luggage basket fixing bracket.
19, connecting bar.
20, safety cover.
21, rotating top.
22. Drive wheel gear coupling bar guide.
23.Two diagonal pipes.
24, reinforcement cover.

Claims (2)

        A three-wheeled bicycle for carrying infants or luggage, where the front wheel is a single wheel and the rear wheel is a folding four-wheel baby stroller. A three-wheeled bicycle characterized in that the rear wheel drive axle coupling gear for the stroller is separated from the gear to become a baby stroller, and as an option, the rear wheel part can be replaced with a single wheel to make a normal two-wheeled bicycle. When the rear wheel drive gear is connected to a connecting bar provided with a detachable lever handle and a stroller is used, the safety cover is removed and the detachable lever handle is turned counterclockwise. Remove the wheel from the rear wheel drive axle connecting gear and disconnect it from the bicycle. Conversely, when connecting the stroller, drop and fit the roller at the rear of the bicycle along the detachable slide guide into the rear wheel drive axle connecting gear. 2. The first three-wheel bicycle according to claim 1, further comprising a detachable coupling system that connects the stroller to a rear wheel portion of the bicycle and locks the driving wheel gear to the driving axle coupling gear with a detachable lever handle.

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