CN2094497U

CN2094497U - Folding chair for bicycle

Info

Publication number: CN2094497U
Application number: CN 90223223
Authority: CN
Inventors: 赵幼仪; 黄玮
Original assignee: Individual
Current assignee: Zhao Youyi
Priority date: 1990-11-09
Filing date: 1990-11-09
Publication date: 1992-01-29

Abstract

The utility model relates to a pedaling chair type bicycle device whose chair can be folded automatically. The structure of the utility model is that a steering apparatus and a driving wheel with a flywheel are arranged on the driving frame formed on the lower side of the foldable chair; a wheel disc pedal is fixed in the front of the driving wheel through the fixed frame of the foldable distance adjusting wheel disc; the guide bar of the steering apparatus is omitted and the travelling direction is controlled in the way of pedaling the pedals with feet; the both sides of the lower end of a back supporting frame are respectively provided with a small rotating wheel. A trailer can be fastened to the back supporting frame by a retaining ring. Because users lean and sit on the chair, the users can be in the resting state all the time in the riding process. The utility model which has the advantages of low seat, stable performance and safety is suitable for the old, weak, sick and disable people and the numerous tourists to use.

Description

Folding chair for bicycle

The present invention relates to the folding voluntarily seat of a kind of foot-operated chair type bicycle device.

In the ordinary course of things, bicycle is as perfect bicycle, the vehicle that provide a convenient.But in many cases, bicycle can not satisfy the old,weak,sick and disabled and traveller's requirement.At first, the bicycle seat is higher, and balance is difficult for, and is difficult to lentamente, hugs the road; Secondly, bicycle can not be with the people, and loading is limited, for the old,weak,sick and disabled person, even if be not with people's loading to ride, and also can be because of the not nimble tumble injury of getting on or off the bus; And car body is big and benzene heavy voluntarily, except loading fortune with car, carries travelling and hardly may.

In order to solve above-mentioned variety of problems, people design various bicycles such as having invented tricycle, folding bicycle, bicycle wheelchair.But because some technology barriers that are difficult to overcome, these bicycles are all difficult as people's will.Tricycle produces for manned loading, because the excellent stability of riding, and can be with the people, and being subjected to the elderly's welcome, development in recent years is swift and violent, and sell well in various tricycle market.But must see that the huge and benzene of tricycle is heavy.General weight is at 50 kilograms-100 kilograms, about 2 meters of vehicle commanders, and two people are difficult to move.If do not go upstairs, also can look for the place to deposit reluctantly, so the tricycle person great majority residents for living one-storey house that fall over each other in eagerness to buy, the elderly who much lives the building height of floor (no matter) suffers from and can't upstairs deposit, and wants to buy and can not buy.If weigh from the angle of reduced volume, expendable weight, the Foldable light tricycle ride that China's patent of invention 87101843 is provided has been done very big effort in this respect.This single three-wheel vehicle of riding has solved the problem of cycling shakiness, and can fold, still, main parts size such as the wheel of this three-wheel vehicle, vehicle frame, ratchet-gear combination are new profile, new construction, it is big to produce investment, the cost height, and key issue is that the bicyclist remains the crossbeam that jumps and gets on the bus, straighten oneself and sit up straight firmly, this is to the old,weak,sick and disabled person's difficulty too, simultaneously more can not manned loading, still can not solve the elderly's difficulty.In recent years, folding bicycle is world research one big hot topic, and new invention, new patent emerge in an endless stream, only the folding bicycle of China's application in 87 years, just have 87100217,87101807, the polite Hull of 87106328(applicant Stam, Swede), 87215464 etc. nearly 20 multinomial.In the middle of these new inventions, what have typical meaning is 87101807 patent of invention Foldable fravelling bicycles, and the volume in light weight, folding of this car is little, can be contained in the suitcase and carry, concerning the traveller of great use.But this car at first is a single bicycle of riding, and can not solve that the elderly is stable by bike, ride comfort, numerous requirements that can manned loading.On the other hand, three-wheel (or four-wheel) the bicycle wheelchair as medical care is used generally all designs roomyly, walking makes every effort to stable, but because this wheelchair all is the manufacturing of residual patients design, thus mostly with hand be power, weight is more than 50 kilograms, and can not fold, and obviously relatively benzene is heavy.

More than the analysis showed that, improve the structure of bicycle, make it to be more suitable for the old,weak,sick and disabled and traveller's requirement, wherein the major technology obstacle has eight aspects, promptly (1) is because stopping of handlebar and crossbeam needs leap to get on or off the bus, (2) seat is higher, and (3) volume is big, and (4) weight is big, (5) be difficult for balance, (6) can not go slowly, (7) can not be with the people, and (8) loading hinders gets on or off the bus etc.And no matter be tricycle, folding bicycle, or bicycle wheelchair, all can not solve eight difficult problems simultaneously, although people have done all effort, up to the present, also do not have a kind of design can accomplish ride stable, can manned loading in, make bicycle simple in structure, lightly comfortable, harvesting is easy to carry.

The objective of the invention is to provide a kind of folding voluntarily seat, it is expendable weight to greatest extent, reduced volume, and can manned loading, it is comfortable, stable to ride, and it is very convenient to carry.

The object of the present invention is achieved like this: on the bogie that forms steering hardware is installed below the front frame of folded seat, the drive wheel that has flywheel is installed on the drive wheel crotch below steering hardware; Wheel disc is fixed on the place ahead of drive wheel with the wheel disc fixed mount of collapsible roll adjustment, wheel disc and flywheel is coupled together with roller chain; The pilot bar of steering hardware does not save not, and the axle core on steering shaft top can insert the top stay bearing plate, links to each other with the drive wheel crotch below it; Support stabilizer rod two ends are separately fixed on the front and back support of folded seat, and the support stabilizer rod is divided into two sections from the centre, can fold; In both sides, after poppet lower end a little runner is installed respectively, and is had the clasp of connection to link to each other with the trailer of seat back.

The present invention is wheel disc fixed mount and the wheel disc pedal device that increases drive wheel, collapsible roll adjustment on folding seat, two little runners, a towing dolly, so structure is very simple, has reduced the weight of motorized cart to greatest extent, and.This folding voluntarily seat at first is a seat, and cosily by being sitting on the seat, whole body loosens the bicyclist, and the light naturally tap pedal of bipod can be walked and can stop, and but is in resting state all the time.Because center of gravity is low, bipod lands easily, the stability and safety of riding again can manned loading, and the time spent is not collapsible, volume is little, only have 80 centimeters * 40 centimeters * 60 centimeters, 10 kilograms of weight can be carried, it is all not difficult by bus, upstairs to enter the room, and more existing various bicycles have tangible advantage.

Concrete structure of the present invention is provided by scheme proposed below and accompanying drawing thereof.

Fig. 1 is the scheme drawing that the folding voluntarily seat structure of single driven wheel formula that proposes according to the present invention is formed, this voluntarily seat form by folded seat (1), front-wheel (2), actuating device (3), steering hardware (4), trailing wheel (5) and trailer several sections such as (6).

Fig. 2 is the concrete device detail scheme drawing that the present invention proposes.Below in conjunction with Fig. 2 its structure and service condition are illustrated in detail.Folded seat (1) is made up of bogie (13) and bracket with foldable stabilizer rod parts such as (31) that front frame (7), backrest (8), the folding hinge (9) of backrest, after poppet (10), support folding shaft (11), seat (12), front frame form below.Front-wheel (2) is a single driven wheel, comprises drive wheel (14) and live axle component parts such as (15).Actuating device (3) comprises the wheel disc fixed mount (22) and the expansion link folding shaft component parts such as (23) of flywheel (16), wheel disc (17), roller chain (18), wheel disc axle (19), thigh (20), pedal (21), collapsible roll adjustment.Steering hardware (4) comprises that the crotch vertical pipe sleeve claims threeway (24), drive wheel crotch (25), crotch standpipe (26), threeway fixed card (27), steering shaft core (28), steering shaft core jack (29) and top stay bearing plate component parts such as (30) again.Trailing wheel (5) comprises hind axle (32) and component parts such as trailing wheel (33), (34).Trailer (6) comprises connection clasp (35), underframe (36), stand (37), bracing frame (38), cardan wheel component parts such as (39).The two ends of support stabilizer rod (31) are separately fixed on the front and back support (7), (10) of folded seat, because tension, the subtended angle between the seat front and back support of support stabilizer rod can keep stable, can on seat, bear bigger pressure like this, also can bear the resistance that trailer is given after poppet simultaneously.Threeway (24) is fixed on the method on the bogie (13), is by the fixed card bolt up, and the folding dress is convenient.Drive wheel crotch (25) is kicked out of to oblique the place ahead along the direction of bogie (13).The wheel disc pedal of actuating device (3) is fixed on the place ahead of drive wheel (14) by the wheel disc fixed mount (22) of collapsible roll adjustment.The pilot bar of steering hardware (4) saves, and can grasp direct of travel with the power of foot-operated pedal.The steering shaft core (28) on steering hardware top can insert in the steering shaft core jack (29) on the top stay bearing plate (30), is inserted in below in the crotch standpipe (26), joins with drive wheel crotch (25).Can keep the stable of whole threeway, drive wheel crotch angle like this, also keep the stable of seat front frame (7) simultaneously.Trailer (6) is connected with seat after poppet (10) by connecting clasp (35), and the time spent can not take off.

Fig. 3 is the organigram of the wheel disc fixed mount (22) of collapsible roll adjustment.Wheel disc fixed mount (22) is divided into (41) two groups of wheel disc fixed mount moving part (40) and wheel disc fixed mount deck parts.Its moving part (40) claims four-way (42) again by the wheel disc axle sleeve, and expansion link (43) two parts are formed, and wheel disc axle (19) passes four-way (42) and the position of definite wheel disc pedal.Have the roll adjustment hole (44) of elongate in shape on expansion link (43), the roll adjustment hole is provided with 2-5 roll adjustment fixed teeth (45).Different roll adjustment fixed teeth is stuck on the expansion link folding shaft (23), can change the length of whole wheel disc fixed mount (22), thereby has also just changed the distance between wheel disc pedal and drive wheel, to adapt to the occupant at different height age.Folding (47) two holes of axis hole of drive wheel axis hole (46) and expansion link are arranged on deck part (41), be provided with deck positioning (48) in the rear end, front end is provided with expansion link locating clip (49).Allow live axle (15) penetrate in the drive wheel axis hole (46), because the effect of deck positioning (48), the deck position that partly is fixed can not rotated.Expansion link folding shaft (23) is passed folding axis hole (47) of expansion link and roll adjustment fixed teeth (45), just moving part (40) and deck part (41) are coupled together.Because the effect of expansion link locating clip (49), expansion link are also no longer rotated, thereby the position of having stablized the wheel disc pedal.

Fig. 4 is wheel disc fixed mount (22) the folded situation scheme drawing of collapsible roll adjustment.Do not riding or carrying when depositing, wheel disc fixed mount (22) can fold, method is to be the axle center with expansion link folding shaft (23), expansion link (43) is pulled upwardly, shown in the direction of arrow among the figure, turn over 90 ° of angles to foldable position shown in the solid line from expanded position shown in the dotted line, the wheel disc pedal just moves on to the top of drive wheel (14) like this, deducted drive wheel fwd length, center of gravity is moved backward.

Because backrest of the present invention recedes, the user can stretch out the light tap pedal of bipod naturally cosily by being sitting on the seat, seat just can walk reposefully or about turn to flexibly.Its gait of march is generally 150 meters/minute.Because the position of seat is extremely low, the slow again bipod of gait of march is easy to land, and particularly because saved the pilot bar that turns to usefulness, grasps direct of travel with the power of foot-operated pedal.Without any crossbeam or vertical beam, need not to lift the leg leap and get on the bus, and bipod lands before the seat, raising oneself slightly forward to stand gets off, so safe especially.Be suitable for very much the old,weak,sick and disabled's outdoor exercises of taking action not too nimble or the use of going sightseeing.And trailer can manned loading, can satisfy many elderly's requirement.

Fig. 5 is a folded state diagram of the present invention, and after finishing using, seat can fold and carry or deposit voluntarily.Folding method is very easy to, and at first expansion link (43) is pulled upwardly, and shortens the length of seat, catch backrest (8) again, with upwards upset of seat (12), after poppet (10) is that rotate forward in the axle center with support folding shaft (11) just, fits together with front frame (7).Then, with 90 ° of angles of front-wheel (2) lateral rotation, then front-wheel and actuating device just with folded seat in same plane, make the folded seat lateral length foldable for sheet.Backrest (8) also can shorten the longitudinal length of folded seat by folding hinge (9) the 180 ° of angles that turn down.Trailer (6) folding more simple as long as stand (37) is pushed over forward on underframe (36) plane, is pulled upwardly underframe again, leans against on the after poppet of seat just passable.Like this, whole seat voluntarily just becomes a thin cuboid shape, can put the boot of automobile into, is placed on the back clothes hanger of bicycle to take away, even can carrying by bus, opens to the park and rides, and is light small and exquisite because of it, and it is also very convenient to put harvesting at home.

A kind of embodiment of the present invention: the seat part is reference with common folded seat, and chair is wide 40 centimeters, and chair is high 78 centimeters, back leg can add hind axle, foreleg bends inwards 90 ° and forms bogie, and drive wheel adopts the trailing wheel of 16 inch portable bicycles, and flywheel uses bicycle 16 tooth small flywheels.Because most parts are existing product, so the production investment is very few, with increasing new installation, production method is simple hardly, and technical requirements is general, and it is also fast to take effect.

Claims

1, a kind of folding voluntarily seat partly is made up of folded seat, front-wheel, actuating device, steering hardware, trailing wheel and trailer etc., it is characterized in that:

(A) bogie that forms below the front frame of folded seat (1) (13) is gone up steering hardware (4) is installed, and the drive wheel crotch (25) below steering hardware (4) is gone up the drive wheel (14) that has flywheel (16) is installed;

(B) the wheel disc pedal is fixed on the place ahead of drive wheel with the wheel disc fixed mount (22) of collapsible roll adjustment, wheel disc and flywheel is coupled together with roller chain (18);

(C) the steering shaft core (28) of steering hardware (4) can insert in the steering shaft core jack (29) on the top stay bearing plate (30), in the following insertion crotch standpipe (26) of steering shaft core, links to each other with drive wheel crotch (25);

(D) support stabilizer rod (31) two ends are separately fixed on folded seat front frame (7) and the after poppet (10), the support stabilizer rod is divided into two sections from the centre, can fold;

(E) in the both sides, after poppet lower end of folded seat a little runner (33), (34) are installed respectively;

(F) in the bottom of after poppet (10) connection clasp (35) is arranged, trailer (6) can snap onto on this clasp when using.

2, folding voluntarily seat according to claim 1 is characterized in that threeway (24) is fixed on the bogie (13), by threeway fixed card (27) bolt up.

3, folding voluntarily seat according to claim 1, the wheel disc fixed mount (22) that it is characterized in that collapsible roll adjustment is divided into (41) two groups of moving part (40) and deck parts, and its moving part (40) is made up of four-way (42) and expansion link (43) two parts.On expansion link (43), have the roll adjustment hole (44) of elongate in shape, the roll adjustment hole is provided with 2-5 roll adjustment fixed teeth (45), drive wheel axis hole (46), folding (47) two holes of axis hole of expansion link are arranged on deck part (41), be provided with deck positioning (48) in the rear end, be provided with expansion link locating clip (49) at front end.