CN86206129U

CN86206129U - Portable double-foldable bicycle

Info

Publication number: CN86206129U
Application number: CN 86206129
Authority: CN
Inventors: 杨卫平
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-08-27
Filing date: 1986-08-27
Publication date: 1988-02-24

Abstract

The utility model relates to a portable double-foldable bicycle, which adopts the double-foldable method so that the bicycle body can be folded to the minimum size. The utility model has the advantages of convenience for carrying, a simple structure, and convenient operation; when the bicycle is ridden, the bicycle body realizes self-locking through a wedge locking device under the gravity and shock, which enhances the rigidity and stability of the bicycle body. When the bicycle body is half-folded, a wheelchair (a couch) can be provided. A separable foldable seat can be used alone as a box; when the bicycle body is unfolded, a wheelchair backrest is provided. The utility model can be widely used in traffic, tourism and the home.

Description

Portable double-foldable bicycle

The utility model belongs to a kind of portable twofold bicycle.

The subject matter of existing folded bicycle is: the folding aftercarriage size of single lap car is bigger, two-fold or roll over the car folding mode more, and the latching device complexity, poor reliability is given and is used generation to come difficulty, has also influenced the application and the development of folded bicycle.

The utility model purpose is to reach minimum size with car body is folding, and car body is light, simple in structure, is convenient to make and use.Car body half folding can constitute wheelchair (or chaise longue) through adjusting, and the folding vehicle seat of separation type can use separately as case and bag, launches to form wheel chair back and base, thereby realizes the multifunctional usage of folded bicycle.

Accompanying drawing 1 is a twofold car block diagram

Accompanying drawing 2-A is the folded bicycle front elevation, and 2-B is that car body half folding forms wheelchair figure, and 2-C is the folding fully figure of car body.

The utility model as shown in Figure 1,1 fixed cross beam, 2 bicycle driving chain wheels, 3 moved cross beams, 4 twin beams are hinged, 5 rear wheels, 6 contract sections, 7 trailing wheels supporting locking slot, 8 trailing wheel supporting sleeves, the supporting of 9 trailing wheels, 10 dashboards (wheelchair armrest), 11 fixed cross beam vertical shafts, 12 bilaterals (wheelchair backrest), the seat connecting rod, 14 seat fronts, 15 springs, 16 seat extremity piece connecting holes, the handing-over of 17 seat bilaterals, 18 seat locking holes, 19 seat coupling bars, the supporting of 20 seats, 21 wheelchair hooks, 22 seats connect jaw, 23 moveable cart handles, lock cam behind 24 handlebars, lock cam before 25 handlebars; 26 moveable cart are hinged, the supporting of 27 front-wheels, 28 front-wheels supporting locking slot, 29 front-wheel supporting sleeves, 30 front vehicle wheels, 31 fixed cross beam vertical shafts, 32 contract sections, the locking of 33 twin beams, 34 extension springs. Each parts label of Fig. 2 is consistent with Fig. 1.

Fixed cross beam 1, moved cross beam 3 connect 4 hinged by twin beams, front and back connect hinge and connect tension by extension spring and constitute vehicle frame.Vertical shaft 11 is connected with front-wheel supporting 27 by the front-wheel supporting sleeve before the fixed cross beam; Back vertical shaft 11 connects and composes the folded bicycle main body by trailing wheel supporting sleeve 8 and trailing wheel supporting 9.The box seat of folding bag that is made of seat bilateral 12, seat pipe link 13 seat fronts 14 connects jaw 22 by seat and is connected with fixed cross beam 1, moved cross beam 3 or is folded down.

When riding and use, the utility model (forwards parallel position by bolster 23 to around fixed cross beam vertical shaft 32 referring to the front-wheel supporting of Fig. 2-A) 27, trailing wheel supporting 9 forwards parallel position by supporting sleeve 8 to around vertical shaft 11, moved cross beam 3 around twin beams be hinged 4 forward to fully embed before and after in the supporting

locking slot

7,28, the locking of fastening twin beams colludes 33 makes car body be normal riding condition, moveable cart forwards certain position to 23 to and preceding locking cam 25 is close to around being hinged 26, depress back locking cam 24, it is completely fixed.Seat 12 is buckled on the

twin beams

1,3 by connecting jaw 21, and seat front 14 fastens pipe link 13 and presses down, and connects 19 with its locking by seat lock tieholen 17.

When car body was ridden, under gravity and shock effect, front and back supporting 9,27 was clipped between the twin shaft by the contract type mechanism that axle sleeve and locking slot constitute, and reaches nature locking by top offset, has strengthened the rigidity and the stability of car body.

When the utility model uses as wheelchair (chaise longue), (referring to Fig. 2-B) will fold seat earlier to take off, open padlock 33, draw back moved cross beam 3, forward front-wheel supporting 27 and trailing wheel supporting 9 to homonymy, perpendicular to crossbeam.Unfolded seat (referring to Fig. 2) connects with fixed cross beam by hook, makes seat positive 14 pass through both sides locking hole 18 respectively in two-wheeled axis extension connection and spacing by middle shaft end nut, constitutes the wheelchair seat.Moved cross beam 3 is adjusted to certain position and is contacted in ground, forms supporting, decontrols moveable cart and is merged together 23 along changeing under the cam 25 both sides skew back faces, forms wheelchair armrest around axis of orientation 180 degree again.

The utility model is folding when using: (take off seat referring to Fig. 2-C), decontrol moved cross beam 3 front-wheel supporting 27 is rotated to moved cross beam 3 one sides, trailing wheel supporting 9 is rotated to opposite side, form twofold, make car body be reduced to minimum, close again moved cross beam 3 put down moveable cart can be portable 23.

The utlity model has following advantage, by adopting the twofold principle, make the car body volume be reduced to minimum and provide basic structure for constituting wheelchair, adopt contract type self-locking device, can be when riding locking naturally under gravity and the shock effect, strengthened car body strength, with the stability of riding, be easy to make and use, split type folding seat can use separately as case and bag, launch the back and form wheelchair seat and backrest, moved cross beam 3 and moveable cart have realized the multi-functional use of parts to 23 Wheelchairs Available supporting simultaneously and handrails.Make it to compare in common car.Substantially do not increasing body part, do not change under the prerequisite of mechanism's complexity, provide normally and ride, wheelchair (chaise longue), multifunctional usages such as folding portable, and reducing car body weight as far as possible, under the prerequisite of reduced volume, guarantee its intensity rigidity, the widespread use of this machine will provide numerous convenience for traffic, tourism and family use to deposit.

Claims

1, a kind of portable twofold bicycle, it is characterized in that by fixed cross beam [1], moved cross beam [3] vertical shaft is connected with the front-wheel supporting of being made up of front-wheel [35], front-wheel supporting locking slot [28], front-wheel supporting sleeve [29] before the vehicle body main body that twin beams hinged [4] is formed; Back vertical shaft [11] is connected with the trailing wheel supporting of being made up of rear wheel [5], contract sections [6], trailing wheel supporting locking slot [7], trailing wheel supporting sleeve, wheelchair armrest; Folding seat such as the separation type of being made up of seat bilateral [12], seat pipe link [13], seat front [14] etc. connects jaw [22] by seat and is connected with fixed cross beam [1], moved cross beam [3] or is folded down; The moveable cart handle of being made up of locking [24], preceding locking [25] behind handlebar [23], the handlebar is connected with the front-wheel supporting;

Front and back wheel supporting [27], [9] are installed in rotation on the supporting sleeve of front and back;

Moved cross beam [3] connects hinge [4] rotation around twin beams and can clamp fully in front and back wheel supporting locking slot [28], [7], is connected with fixed cross beam by twin beams locking [33].Handlebar [23] can rotate around preceding locking cam two sided vertical line.

2, according to the portable twofold bicycle of claim 1, it is characterized in that supporting the contract type device of locking slot (28), contract sections (32), supporting sleeve (29) formation and the contract type device that trailing wheel supporting locking slot (7), contract sections (6), supporting sleeve (8) constitute, be clipped between fixed cross beam vertical shaft and the moved cross beam vertical shaft by front-wheel.

3, according to the portable twofold bicycle of claim 1, it is characterized in that front and back wheel supporting (27), (8) relatively rotate parallel position laterally around the fixed cross beam vertical shaft, be connected and fixed front and back wheel by launching seat front, back (14) by seat locking hole (18), seat side (12) are connected adjustment moved cross beam (3) by hook (21) and contact with ground with fixed beam.

4, according to the portable twofold bicycle of claim 1, it is characterized in that moveable cart (23) by afterwards locking cam (24), preceding locking cam (25), can be fixed on the certain position, with moveable cart (23) around moveable cart the hinged certain position that is pivotally lowered into, two handlebars merging reaches spacing.