JP2009234577A - Tricycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tricycle of which the loading space units with functions in different categories can be detachably replaced in accordance with an intended use. <P>SOLUTION: In the tricycle, the loading space units with functions in different categories can be detachably replaced in accordance with the intended use. The loading space unit adopts a means for detachably replacing the loading space units with a plurality of connecting devices disposed at optional points of a chassis frame between two axles of rear wheels, and a plurality of connecting mechanisms disposed under the loading unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

 The present invention relates to a three-wheeled bicycle capable of detachably changing a loading platform unit having functions according to categories according to the purpose of use.

In February 2008, the National Police Agency clearly stated the prohibition of dangerous driving of bicycles for children's bicycles, which are now in widespread use, and there are regulations and penalties for three-seater bicycles that use auxiliary chairs. The private bicycle industry promotion association in the form of reflecting the demand for regulatory approval from housewives who are raising children, etc. A company announced a prototype. Based on this, if the road traffic law is to be revised by clearing the following items, including the safety of a two-child bicycle, it will become a legal three-seater bicycle after March 2009. The use is expected to be permitted.
(1) Sufficient strength to carry two infants.
(2) Sufficient braking performance even when two infants are on board.
(3) Operability and stability to prevent overturning when parking.
(4) The parts to which the bicycle frame and infant seat are attached (handles, rear carriers, etc.) must have sufficient rigidity.
(5) There should be no vibrations that affect the steering wheel operation while driving.
(6) Maneuverability, operability and safety are ensured when starting, running, pushing and walking.

 As a two-child bicycle with a specific structure that satisfies the above items, for example, an infant seat has a low mounting position, is located in the tread of the front and rear wheels, and is not located in front of the handle. In addition, if the structure is designed to pursue traveling performance, the size of the rear wheel must be large and the pedal rotation must be transmitted efficiently. In addition, if the structure pursues stability, the body frame should be designed with a low center of gravity and the front or rear wheels should be two. Further, when a structure that pursues operability (steerability) is used, there is a structure in which the front wheel is one wheel and there is no load on the handle.

 Currently, legal three-seater bicycles that satisfy all the above-mentioned structures have not been announced by each manufacturer, and many of them were not used for bicycles other than children's bicycles. In addition, many existing bicycles are used as a means of picking up nurseries and kindergartens, used as a means of shopping, used as a means of commuting and moving, and used for exercise and leisure. Once the target equipment was installed, it was practically unsuitable for other uses, and the bicycle had to be driven with useless equipment.

 Of course, as a child-rearing housewife who uses children's bicycles on a daily basis for a variety of purposes, it also suits other uses for convenience and a variety of different uses according to the child's growth and lifestyle. I was looking forward to the appearance of a bicycle for children that had an exterior design.

 On the other hand, in a bicycle for carrying a child, a “bicycle infant seat” (refer to Patent Document 1) in which an infant seat is provided on the handle portion of the bicycle, or an “electric 3” seat provided on the front and rear wheels. A “seater three-wheeled bicycle” (see Patent Document 2) has been proposed.

However, the above-described known technology is merely a bicycle for riding on a child by providing a child riding seat on the front and rear wheels, and is not a bicycle having a function used for other purposes.

 Also, a “three-wheeled bicycle for the disabled” (see Patent Document 3) in which a chair for the disabled is provided on the front wheel, and a baby carriage or wheelchair provided on the front wheel to separate it from the rear wheel, and the separated baby carriage Techniques such as “electric nursing bicycle” (see Patent Document 4) that can be used alone or in a wheelchair have been proposed.

However, the above-mentioned known technology merely transports a baby carriage or wheelchair provided detachably by a bicycle function, and the bicycle with the front wheel part removed is used for other purposes as described above. It was not a bicycle with a structure.

Japanese Patent Publication No. 2007-203874 Registered Utility Model No. 3142736 Japanese Patent Publication No. 2001-71972 Japanese Patent Publication No. 2000-355293

 In view of the above-described problems, the present invention aims to provide a three-wheeled bicycle capable of detachably replacing a loading platform unit having a function according to category in accordance with the purpose of use.

 The present invention is a three-wheeled bicycle in which a loading platform unit having a function according to category can be detachably exchanged according to the purpose of use, and the loading platform unit is placed at an arbitrary position of the chassis frame between two rear wheels. A means for detachably exchanging is provided by the plurality of connecting devices provided and the plurality of connecting mechanisms provided below the loading platform unit.

 In addition, the present invention employs a means for a three-wheeled bicycle to be driven by electric power.

 In addition, the present invention employs means for a three-wheeled bicycle to be driven by a prime mover.

 Moreover, this invention takes the means by which a loading platform unit is a child seat.

 Further, the present invention adopts a means in which the cargo bed unit is a stroller.

 In addition, the present invention adopts a means in which the cargo bed unit is a hood cover.

 Moreover, this invention takes the means by which a loading platform unit is a care chair.

 In addition, the present invention adopts means in which the loading platform unit is a shopping cart and a cart.

 In addition, the present invention adopts means in which the cargo bed unit is a showcase.

 According to the structure of the three-wheeled bicycle according to claim 1, wherein the bicycle is a two-child bicycle according to the present invention, the three-wheeled bicycle has a low center of gravity and satisfies the safety standards for the legal three-seater bicycle described above. And a 20-inch wheel that supports the load with a low center of gravity to ensure visibility, and the handle forms a U-shape that allows the shopping cart and child seat to be mounted on the rotating shaft of the handle. ) In addition, the rear wheels are 24 inch large wheels to improve running efficiency, and by using two wheels, stability is ensured. In addition, the loading platform unit is detachably loaded on a chassis frame provided with a plurality of connecting devices at arbitrary positions between the two axes of the rear wheel, and has a structure that can be replaced with one touch according to the purpose of use. An excellent effect of efficiently embodying the safety structure of a legal three-seater bicycle is obtained.

 In addition, by using a structure that allows the pallet unit with category-specific functions to be detachably replaced according to the purpose of use, the specifications of the tricycle can be freely adjusted according to the growth of children and changes in the user's usage environment. For example, in the case of a user who selects a bicycle for two children mainly for child-rearing, a child seat, a hood cover, a stroller, and a shopping cart can be arbitrarily selected and mounted. In addition, in the case of a user who selects a care bicycle mainly for a physically handicapped person or elderly care, a care chair and a hood cover can be arbitrarily selected and attached. Further, in the case of a user who selects both childcare and work, excellent effects such as child seats, hood covers, strollers, shopping carts, and carts can be arbitrarily selected and mounted.

  In addition, according to the present invention, it is possible to easily drive a housewife or an elderly person who does not have physical strength or a person who cannot ride a bicycle by using an electric tricycle. It is obtained. In the future, it will be possible to develop battery-powered tricycles that use battery batteries.

  Further, according to the present invention as set forth in claim 3, the three-wheeled bicycle with a motor is a three-wheeled bicycle with a motor as a current motorcycle with a motor. It is possible to obtain an excellent effect that can be achieved.

  Further, according to the present invention as set forth in claim 4, by making the carrier unit a child seat specification as shown in FIG. 3, it is possible to make a three-wheeled bicycle with two infants, and further, a child seat and a shopping cart are attached to the handle portion. Can also be installed. Also, as shown in FIG. 4, by mounting a child seat and a stroller, an excellent effect can be obtained in which an infant and an infant can be driven at a time.

  Further, according to the present invention described in claim 5, by making the carrier unit a stroller specification as shown in FIG. 4, it is possible to move an infant with a relatively long distance, and at the destination, An excellent effect that can be used by separating the stroller is obtained.

  Further, according to the present invention described in claim 6, by making the loading platform unit a hood cover specification as shown in FIG. 5, it can be used as a bicycle for children on rainy weather, and a tent or outdoor life. It can be used individually as a luggage compartment trunk for cycling trips with equipment, etc. or as a tool compartment trunk for boy sports activities such as baseball and soccer, and it is sporty according to the purpose for which the appearance is used It is possible to obtain an excellent effect that can be decorated with various shapes and colorful colors and designs.

  Further, according to the present invention as set forth in claim 7, it is possible to use the load carrier unit as a care chair specification as shown in FIG. From the situation of having only relied on the means of transportation by the car, it is possible to obtain an excellent effect of being able to help pick up and go out even to a care assistant who does not have a driver's license or car.

  Further, according to the present invention as set forth in claim 8, by making the cargo bed unit into a shopping cart specification as shown in FIG. 7, it is possible to carry out child pick-up and shopping at the same time in combination with the child seat specification according to claim 1. In addition, it can be used for transporting and delivering milk, newspapers, and sales products, and for harvesting and shipping crops. As a substitute for market-related turret trucks, excellent effects of transporting vegetables and fish can be obtained.

  In addition, by making the carrier unit a carry cage specification for pets, it is possible to obtain an excellent effect that can be used as a moving means when moving a large dog over a long distance or moving a multi-headed pet to a distant park. .

  Further, according to the present invention described in claim 9, by making the cargo bed unit into a showcase specification as shown in FIG. 8, it can be used as a display / storage / transport case in mobile sales. This is an excellent effect that allows ordinary people such as handmade bakery, cake shop, jewelry shop, fish and vegetable shop to start private mobile sales with small capital.

FIG. 1 is an explanatory view showing an embodiment of a tricycle according to the present invention. FIG. A is an enlarged perspective view of a main part of a three-wheeled bicycle. (Embodiment 1) FIG. B is an explanatory view showing the overall configuration of a three-wheeled bicycle. (Example 2) FIG. 2 is an explanatory view showing a connecting device for a three-wheeled bicycle according to the present invention. FIG. A is an explanatory view showing an embodiment in which the coupling device is a latch lock. (Embodiment 3) FIG. B is an explanatory view showing an embodiment in which the coupling device is a loading band. (Embodiment 4) FIG. C is an explanatory view showing an embodiment in which the connecting device is a hinge plate stopper. (Example 5) FIG. 3 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a child seat. (Example 6) FIG. 4 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a stroller. (Example 7) FIG. 5 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a hood cover. (Example 8) FIG. 6 is an explanatory diagram showing an embodiment in which the cargo bed unit in the present invention is a nursing chair. Example 9 FIG. 7 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a shopping cart and a cart. (Example 10) FIG. 8 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a showcase. (Example 11)

  The present invention is a three-wheeled bicycle in which a loading platform unit having a function according to category can be detachably exchanged according to the purpose of use, and the specification of the three-wheeled bicycle is adapted to the growth of children and changes in the user's usage environment. The most characteristic feature is that the structure can be freely changed. Hereinafter, embodiments will be described with reference to the drawings.

 FIG. 1 is an explanatory view showing an embodiment of a tricycle according to the present invention.

 FIG. A is an enlarged perspective view of a main part of a three-wheeled bicycle.

FIG. B is an explanatory diagram showing the overall configuration of the three-wheeled bicycle.
The three-wheeled bicycle 10 is detachably replaced by providing a chassis frame 11 having a plurality of connecting devices 30 between two axes of the rear wheel 41 and a plurality of connecting mechanisms 20 below the loading platform unit 12. It has a structure that can be operated by using the platform unit 12 for multiple purposes.

The chassis frame 11 connects a rear body frame 42 that connects a loading space 44 between the two axles of the front wheel frame 42 and the rear wheel 41 of the three-wheel bicycle 10, and is provided in parallel with the traveling direction. A wheel or the like that protrudes from the coupling mechanism 20 provided below the cargo bed unit by being provided with a square metal frame having a plurality of coupling devices 30 at arbitrary positions and having a floor surface assembled in a lattice shape. It has a structure to be mounted avoiding the floor chassis frame.

The carrier unit 12 is a replaceable carrier unit having functions according to categories. For example, a child seat C, a stroller B, a hood cover H, a nursing chair K, a shopping cart G, a cart D, a showcase box S, etc. The bicycle 10 is loaded on a loading space 44 between two axes of the rear wheel 41 of the bicycle 10.

FIG. 2 is an explanatory view showing a connecting device for a three-wheeled bicycle according to the present invention.
The connecting device 30 is provided with concave portions 36 at arbitrary locations on the chassis frame 11 so as to orthogonally cross the plurality of connecting mechanisms 20 of the loading platform unit 12 and further serve for positioning.

FIG. A is an explanatory view showing an embodiment in which the coupling device 30 is a latch lock 31.
The U-shaped pipe 21 covered with the cushioning material 22 provided at the lower part of the loading platform unit 12 was pushed into the connecting device 30 having the recesses 36 at any plurality of locations on the chassis frame 11, and locked with the latch lock 31. Indicates the state. By using the latch 31, the loading unit 12 can be exchanged with a single touch, and the cushion material 22 prevents the backlash and metal contact noise.

FIG. B is an explanatory view showing an embodiment in which the coupling device 30 is a loading band 32.
A U-shaped pipe 21 covered with a cushioning material 22 provided at the lower part of the cargo bed unit 12 is pushed into a connecting device 30 having recesses 36 at a plurality of arbitrary positions on the chassis frame 11, and an attachment band is attached to the chassis frame 11. The state fastened with the load-clamping band 32 fixed by is shown. By using the loading band 32, the loading unit 12 can be exchanged with one touch, and the cushion material 22 prevents the backlash and metal contact noise.

FIG. C is an explanatory view showing an embodiment in which the connecting device 30 is a hinge plate stopper 35.
The U-shaped pipe 21 covered with the cushion material 22 provided at the lower part of the cargo bed unit 12 is pushed into the connecting device 30 having the recesses 36 at arbitrary plural positions of the chassis frame 11, and is engaged with the hinge plate stopper 35. Indicates stopped state. The hinge plate stopper 35 is formed with a hinge at the base and can be opened and closed. The tip of the hinge plate stopper 35 is set in a bifurcated shape by escaping the diameter of the bolt 34, and is fixed with a wing nut 33. Can be performed with one touch, and the cushion material 22 can prevent backlash and metal contact noise.

 Although not illustrated, the connection auxiliary frame 13 has a special shape such as a child seat C, a stroller B, and a nursing chair K, and a shape when the load carrier unit 12 provided as a ready-made product is attached to the chassis frame 11 as an auxiliary shape. It is manufactured and used according to.

 The connecting device 30 and the connecting mechanism 20 according to the present invention depart from the gist of the present invention as long as the loading unit 12 can be detachably replaced with the chassis frame 11 and the positioning and connecting and fixing can be performed reliably. The means and shape are not particularly limited within the range not to be used.

 The connection mechanism 20 has a structure in which a plurality of U-shaped pipes 21 covered with a cushioning material 22 are provided below the bed unit 12 and are connected orthogonally to a plurality of connection devices 30 of the chassis frame 11.

FIG. 3 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a child seat.
The child seat C is installed in the luggage space 44 of the rear wheel 41 so as to avoid the chain transmission part, and by installing another child seat C on the rear side, it is possible to carry two infants. Further, by adopting a specification in which the handle 43 is provided with a shopping basket G, it has a structure that allows children to pick up and shop at the same time.

FIG. 4 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a stroller.
The stroller B can be installed alone in the luggage space 44 of the rear wheel 41. From the situation of driving with a conventional baby on the back, it can be driven directly on the rear loading space 44, so that not only can it run safely, but the behavior after getting off the bicycle can also be used independently as before. It has a structure that can be done.

FIG. 5 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a hood cover.
The hood cover H can be installed in the loading space 44 of the rear wheel 41 at the same time as the child seat C, the stroller B, the care chair K, etc., without having to worry about the weather. It has a structure that eliminates dangerous acts that have been used to drive unstablely (traffic violation of the Road Traffic Law).

 It can also be used as a three-wheeled bicycle for bicycle trips. It can be used as a luggage trunk for cycling trips with tents and outdoor life equipment in the hood cover H, and as a trunk for equipment for boy sports activities such as baseball and soccer. It can be used as an individual and has a structure that can be decorated with a sporty shape and colorful colors and designs according to the purpose of use.

FIG. 6 is an explanatory diagram showing an embodiment in which the cargo bed unit in the present invention is a nursing chair.
The care chair K is installed in the loading space 44 of the rear wheel 41 with a seat belt facing backward. It is used for the care of elderly caregivers and the physically handicapped, and since it can be moved by bicycle, the means of transportation that had not been forced to move by car in the past, subsidy care assistance for minors who do not own a driver's license or car Can be used easily by a person. Moreover, since it is the three-wheeled bicycle 10, it can be used easily even by a caregiver who cannot ride a bicycle, and has a structure that can be used as an environment-friendly nursing bicycle that does not emit exhaust gas.

 Further, since the care chair K is located behind the three-wheeled bicycle 10, it has a structure that minimizes injury to the driver and passengers due to a collision accident during traveling.

FIG. 7 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a shopping cart and a cart.
The shopping basket G has a structure that can be installed in the upper portion of the handle 43 and the loading space 44 of the rear wheel 41 in combination with other purposes of use.

 The cart D can be used as a shopping cart for shopping or as a cart D for business use. For example, it has a structure that can be used as a shopping cart, as a substitute for a turret truck in the fish and vegetable market, as a crop harvester, or as a delivery bicycle for milk shop or tofu shop .

 Furthermore, by making the carriage D into a carry cage specification for pets, it has a structure that can be used as a means for moving large dogs over long distances or moving multi-headed pets to distant parks.

FIG. 8 is an explanatory view showing an embodiment in which the cargo bed unit in the present invention is a showcase.
Showcase S can be used as a display case in mobile sales or as a storage / transportation case. For example, handmade bakery, cake shop, wharf shop, crepe shop, jewelry shop In addition, it has a structure that can provide a three-wheeled bicycle 10 that can be opened by an ordinary person such as a recycling shop with a small capital for personal mobile sales.

DESCRIPTION OF SYMBOLS 10 Three-wheeled bicycle 11 Chassis frame 12 Carrier unit 13 Connection auxiliary frame 20 Connection mechanism 21 U-shaped pipe 22 Cushion material 30 Connection device 31 Latch lock 32 Luggage band 33 Hinge plate stopper 34 Folding bolt 35 Wing nut 36 Recess 40 Front wheel 41 Rear wheel 42 Body frame 43 Handle 44 Car bed space C Child seat B Stroller H Top cover K Care chair G Shopping cart D Cart S Showcase

Claims (9)

A three-wheeled bicycle that can be detachably replaced with a loading platform unit having a function according to category according to the purpose of use, and the loading platform unit is provided at a plurality of locations on a chassis frame between two axles of a rear wheel. The three-wheeled bicycle can be detachably exchanged by the connecting device and a plurality of connecting mechanisms provided below the loading platform unit. 2. The electric three-wheel bicycle according to claim 1, wherein the three-wheel bicycle is driven by an electric force. The three-wheel bicycle with a prime mover according to claim 1, wherein the three-wheel bicycle is driven by a prime mover. 4. The three-wheeled bicycle for two infants according to claim 1, wherein the carrier unit is a child seat. 4. The three-wheeled bicycle for two infants according to claim 1, wherein the carrier unit is a stroller. The three-wheeled bicycle with a hood cover according to claim 1, wherein the cargo bed unit is a hood cover. The three-wheeled bicycle for nursing care according to claim 1, wherein the loading platform unit is a nursing chair. 4. The three-wheeled bicycle for carrying luggage according to claim 1, wherein the cargo bed unit is a shopping cart and a cart for loading luggage. The three-wheeled bicycle for mobile sales according to claim 1, wherein the cargo bed unit is a showcase.

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