CN203619856U

CN203619856U - Foldable rollator

Info

Publication number: CN203619856U
Application number: CN201190000966.5U
Authority: CN
Inventors: 乌多·贝格尔
Original assignee: Zhongshan Longcheng Daily Products Co Ltd
Current assignee: SHANGHAI LERADO DAILY ARTICLE CO., LTD.
Priority date: 2010-12-29
Filing date: 2011-12-23
Publication date: 2014-06-04
Anticipated expiration: 2021-12-23
Also published as: EP2658501A1; EP2658501B1; WO2012089694A1

Abstract

Disclosed is a foldable rollator. The rollator comprises two side surface parts (1a and 1b). The side surface parts comprise lower longitudinal beams (2a and 2b) and holding members (3a, 3b, 5a and 5b) disposed on the lower longitudinal beams. The holding members are provided with bearings (4a, 4b, 6a and 6b). The bearings are used for at least one of front wheel devices (7a and 7b) and back wheel devices (8a and 8b). The longitudinal beams (2a, 2b, and 32) are provided with height adjusting section bars (19a and 19b) with inserted support rods (9a and 9b) or single support rods (9a and 9b). The upper end parts of the support rods are provided with backward extending handles (10a and 10b). The two side surface parts (1a and 1b) are connected with each other through a foldable fork connecting rod (11). The height adjusting section bars (19a and 19b) or the single support rods (9a and 9b) are disposed on the lower longitudinal beams (2a and 2b) along the longitudinal direction in a foldable manner, and can be generally disposed in the stacking position parallel to the extension direction of the longitudinal beams (2a and 2b) from a position in the upward extension direction. The lower end parts of the single support rods (9a and 9b) or the height adjusting section bars (19a and 19b) are lifted upward from the longitudinal beams (2a and 2b).

Description

Folding travelling aided bicycle

Technical field

This utility model relates to a kind of travelling aided bicycle.

Background technology

By the travelling aided bicycle (walking aid of belt wheel) of the known same of DE202006006621U1.Each steady arm leads and can carry out height adjustment in this form of implementation in each sleeve.Each sleeve fixedly secures on each longeron of main car frame and stretches out vertically upward.In addition support each sleeve by a vertical beam extending in parallel.Each steady arm has into the handrail of P formation type, connects arm and is designed to, and makes the backrest of a flexible material can be fixed thereon.Arm empty after each handrail forms one handle.Fix a brake handle thereon, it via Bowden cable with configuration wheel on brake unit be connected.These two lateral parts interconnect via a cross link.Cross link comprises two bars, these two bars be below hinged on longeron via the pipe of a horizontal expansion and top via each connecting rod, the longitudinal axis that they can be parallel to travelling aided bicycle yaw motion be hinged on each sleeve and each top of each arm of cross link on, thereby by the lifting of cross link, automatically move toward one another of two lateral parts.Cross link also has the holding element of transverse pipe form below.The seat of can tensioning between each keeper being made by flexible material.Although known travelling aided bicycle can fold side by the lifting of cross link.In the situation that not using, in the time stacking, do not there is the folding probability for dwindling of proceeding.

By the travelling aided bicycle of the known a kind of three-wheel of DE9400356U1, this travelling aided bicycle has two vertical supports, and they are rotatably supported on another vertical support via each connection check rod, thereby they can flock together.Under the state opening at travelling aided bicycle in the spacing between two vertical supports, keep via a lockable connection.In the time throwing off this connection, two supports of travelling aided bicycle can flock together.

Utility model document DE201103163U1 describes a kind of travelling aided bicycle of four-wheel, and wherein two trailing wheels are fixed on long folding bar.

Utility model document DE202007010598U1 describes a kind of rolling assistant of three leg support forms, and it comprises three lower limbs that can open, and fixes each roller thereon.

All going wrong in these devices, even if they are also that relatively therefore the side of occupation of land also can be difficult to transportation or adversely stack in the time not using under folding state.

Utility model content

Set out by described prior art, the purpose of this utility model is, a kind of travelling aided bicycle of design like this, with regard to its height adjustment pipe and steady arm, also form in addition folding, thereby especially little stacking unit is provided in the time not using, by its can arbitrary automobile, also carry and also can simply and save local being stacked in the region of family in the luggage case in kart in the time not using.

This utility model is by reaching this object to the design of travelling aided bicycle, be arranged on collapsibly on the longeron of bottom along the longitudinal direction of each longeron and can be placed into from upwardly extending erection position with the height adjustment section bar of steady arm inserting or independent steady arm accordingly and be arranged essentially parallel to the stowed location that longeron extends, and with the height adjustment section bar of steady arm inserting or each independent steady arm respectively by means of at least one thereon and the rear diagonal brace that can support around horizontal axis on longeron or the front diagonal brace that can support in front area in lower end region and on longeron thereon yaw motion yaw motion be directed to and keep during in deflection, each independent steady arm or each height adjustment section bar lift from longeron with bottom when insert the stowed location that is arranged essentially parallel to longeron extension from upwardly extending erection position.

Height adjustment section bar can be pipe certainly, by conglobate, polygonal its structure or oval-shaped.But height adjustment section bar can be also to have the pipe profile of freely definite transverse section or other solid profile, and the steady arm that is configured to hollow stem can maybe can be inserted in described section bar by sleeve.The co-operating in a known way of height adjustment section bar and steady arm, that is each steady arm can upwards be drawn high and decline and be brought to thus different height and position fixing therein by relative altitude adjustment section bar.One round is set in the simplest embodiment for this reason in steady arm and/or in height adjustment section bar, when wherein the congruence at least one hole in height adjustment section bar and in steady arm arranges, can implements highly to fix by means of spring-loaded pin.This pin can for example be arranged on the armed levers such as spring-loaded conversion, hand steerable it, to can implement height adjustment in the mode requiring.

In a scheme, also can that is there is no using steady arm as independent steady arm height adjustability is arranged on the longeron of lateral parts.For the longitudinal direction along longeron can fold with the height adjustment section bar of the steady arm inserting or independent steady arm, necessary, they can be arranged on longeron yaw motion.Because because static reason steady arm must be arranged in the first half of longeron, so make steady arm stretch out in significantly in the back longeron downwards in the time that single-revolution hinge normally overturns in length, although thereby provide additional folding probability, but still do not obtain compact folding unit in the mode requiring.Because this reason at least arranges each diagonal brace after each steady arm, they are not only hinged on each steady arm or on height adjustment section bar but also are hinged in the Background Region of each longeron, thereby on the one hand in order to use travelling aided bicycle can realize the almost vertical or vertical setting of each steady arm, and on the other hand in the time of deflection steady arm or the height adjustment section bar with steady arm can move forward around the moving radius of diagonal brace.In this corresponding selection by the length of diagonal brace likely, steady arm not only stretches out longeron minutely in front side but also at rear side, such shortening of generator under folding state thus, and the stacking space needing in the mode requiring reduces to very little.In the prior art the bottom of each steady arm is arranged on respectively on longeron vertically rigidly on the contrary, therefore upset is folding is impossible.

As for intersecting the swing hinge of each lower rod end of hinge, consider for example keeper on the bottom of height adjustment section bar or steady arm, it has the supporting-point for pipe that each interval is arranged, the bottom of welding each bar of cross link on pipe.It is evident that, in the time that each steady arm is toppled over backward, each lower support point is automatically lifted on longeron and each steady arm can move forward together with height adjustment section bar.Under state for the setting at travelling aided bicycle, fix this associating, each strap can be for example set, they arrange one and are connected between the free end of steady arm or height adjustment section bar and diagonal brace.

But also likely, can below steady arm or keeper, protrude a pin, this pin be embedded in longeron above on latch recess in and be fixed therein by single-revolution clip or flashboard, it,, via lever deflection or movement like this, makes to make pin deflection out downwards in the time that steady arm overturns.For example become likely by these measures, in the time erectting, can again get loose and deflect in the latch recess on each longeron with bottom with height adjustment section bar or each independent steady arm of the steady arm of each insertion.But interlock also can be set at least one diagonal brace, and it stops the deflection unintentionally under the state of the setting of travelling aided bicycle.In addition at the diagonal brace of front side setting, one additional guiding and locking also can be set via being additional to existing rear diagonal brace, the diagonal brace that should arrange in front side is determined size and molding like this, allows to realize steady arm parallel supporting of having a mind on longeron in the situation that being with or without height adjustment section bar.

Also can hinged lever on the keeper of the bearing for front wheel device, it has L shaped shape and is connected at the lower fixing point intersecting on the steady arm of hinge with free lower limb.It is evident that, in the time that steady arm folds back the bottom of steady arm can be automatically upwards and also deflection forward, thereby produce respectively a guiding in each steady arm deflection with while erectting.In the further form of implementation of this utility model, can also set, this additional diagonal brace is hinged on the front end of longeron and is configured to the lever of both sides, thereby can fixing vehicle wheel bearing keeper at the external part of lever.It is evident that, in this arranges, each front-wheel also can downwards and upward deflect, thereby further shortens folding travelling aided bicycle above thus.

The cross link being made up of each longer bar also has advantages of such, and the maintenance bar extending along the longitudinal direction of travelling aided bicycle can be installed on the upper end of each bar, can fix in known manner a seat thereon.Also can be in front side on the cramp bar arranging as holding element at these or rear side do not go up a backrest.To keep in order providing on each holding element more reliably, supporting member can be configured to polygonal pipe, thereby backrest can insert and for example can fix reliably by means of the spring steady pin in embedding one hole with polygonal pin.Can take at any time such backrest away, it can be configured to the backrest of rigidity or can be made up of a flexible material.In the situation that backrest is made up of flexible material, even if backrest also can retain when folding.This is equally also applicable to seat face.Seat face also can be formed or be utilized each locking device to lock as the seat of shelf shape by flexible material.

In further form of implementation, set, two lateral parts are formed parallel and the symmetrical extension of mirror image, fork connecting rod is a cross link, it by least two intersections and around the longitudinal axis of travelling aided bicycle, hingedly in cross point, interconnective bar forms, the bottom of these bars can be bearing on the bottom of each height adjustment section bar or on each independent steady arm yaw motion, and their upper end via each hinged fixing compensation bar and each bottom part at interval, can be fixed on each height adjustment section bar or each steady arm yaw motion.

But this utility model also can be used in a form of implementation, wherein each longeron front side wall around vertical axis can forming V-shape ground mutually connect to fork or connector in front side on around the connection that is hinged of at least one vertical axis, wherein on the connector of front side, can fix at least one front wheel device.To this self-evidently, the each longeron of molding like this, provides the foot of requirement freely.

Set in a further form of implementation, comprise with height adjustment section bar or the independent steady arm of the steady arm inserting that respectively insertion apparatus is in order to insert folding shelf.Insertion apparatus can mate like this,, on the height adjustment section bar of the steady arm with inserting or multiple positions of independent steady arm, can insert folding shelf that is.

Folding shelf can be fixed in a side on the handle being arranged on steady arm via band or another suspension arrangement, this steady arm can insert in height adjustment section bar or individually and arrange, and the other end is fixed on on the height adjustment section bar of the steady arm inserting or on independent steady arm.To this self-evidently, on two handles, band is set.

In order to increase operation rate, also on the longeron on each front diagonal brace, in each bottom, before accommodation section and/or at the height adjustment section bar of the steady arm with inserting or on independent steady arm, support that protrude upward or that can upwards erect is set, for pallet, basket or seat plate that can not go up or can be attached.

Accompanying drawing explanation

Below by the each embodiment shown in each accompanying drawing, this utility model being addedly described.Wherein:

The axonometric drawing such as grade of the travelling aided bicycle that Fig. 1 erects according to this utility model,

The travelling aided bicycle that what Fig. 2 side was folding be drawn in Fig. 1 wait axonometric drawing;

The axonometric drawing such as grade of the travelling aided bicycle of pressing Fig. 1 and 2 that Fig. 3 also partly vertically folds,

The axonometric drawing such as grade of the travelling aided bicycle of pressing Fig. 1 to 3 that Fig. 4 folds completely,

Fig. 5 another according to travelling aided bicycle of the present utility model erect state under perspective view,

Fig. 6 is according to the folding state in the side of the travelling aided bicycle of pressing Fig. 5 of the present utility model,

Fig. 7 is according to the partly folding state of the travelling aided bicycle of pressing Fig. 5 of the present utility model, comprises the height adjustment section bar with the steady arm inserting that unclamps or independent steady arm; With

Fig. 8 is according to the completely folding state of the travelling aided bicycle of pressing Fig. 5 of the present utility model.

The specific embodiment

Travelling aided bicycle shown in each accompanying drawing consists essentially of symmetrical lateral parts 1a and the 1b forming of two mirror images.

Lateral parts

1a, 1b comprise respectively longeron 2a or a 2b, and on this longeron, at installed in

front keeper

3a and 3b, keeper has again bearing 4a and 4b and front wheel device 7a and 7b.

Front wheel device

7a, 7b can be single-wheels, as indicated in example.But also can relate to known two-wheel device itself at this.The pillar of one-sided jaw or each jaw of crossing over or each centre can be set as the Connection Element to keeper 3a and 3b.In the region at rear portion, the two ends of

longeron

2a, 2b be bending and be tilted to after and to downward-extension.On each end of

keeper

5a and 5b, be provided with bearing 6a and 6b for trailing wheel 8a and 8b.Relate in this embodiment the trailing wheel 8a and the 8b that put in outside one-sided.

In order, using travelling aided bicycle as supporting car have impedient people for walking, to be arranged on now vertical upwardly extending height

adjustment section bar

19a and 19b under the state of setting, at least one

hole

26a, 26b are set on upper end in height adjustment section bar.In tubular height

adjustment section bar

19a, 19b, insert respectively a steady arm 9a, 9b.The hole of multiple settings that are arranged above and below is in

steady arm

9a, 9b, so that one of them hole overlaps with

hole

26a or 26b in height adjustment section bar in the time drawing high.For example, likely,

steady arm

9a, 9b are fixed on to different height and positions by a unillustrated steady pin, a spring-loaded pin.Before deflection, should occupy nethermost position, so that handle 10a and not obvious trailing wheel 8a and the 8b of protruding from of 10b shaping and that be provided with jacket layer.By height adjustability, the coupling of the body sizes to walking people with disability of travelling aided bicycle is possible in a simple manner.

Set now fixed axis bearing

sleeve

25a and 25b on the bottom of height

adjustment section bar

19a and 19b according to this utility model.These bearing holder (housing, cover)s 25a, 25b are formed, make circular bottom side to be arranged on longeron and support thereon thus planarly and not only along the longitudinal direction and also along side surface direction a support is provided.Fixture here can be set equally.The bearing block that is shaped in inner side on these

bearings

25a, 25b, it can yaw motion ground containing pipe 24a and 24b.At the bar engaging between two

lateral parts

1a and

1b

13 and 14 of pipe 24a He24bShang center welding cross link 11.These two bars 13 be hinged on cross point 12 with 14 be connected and on each upper end, have be parallel to travelling aided bicycle longitudinal direction extend holding element 17a and 17b.These

holding elements

17a, 17b are pipe equally, and they are in front side but also stretch out in each bar at rear side.It is evident that, on these

holding elements

17a and 17b, for example can put a seat shelf and maybe seat shelf can be pushed open to horizontal expansion under the upright state of crossbar 11.But also can fix a seat part being formed by a flexible material equally here, it in the time that cross link 11 is folding automatically along with folding.

The fixing of the upper end of

bar

13 and 14 do not realized via holding

element

17a and 17b, and arranges via the

compensation bar

15 and 16 connecting, and their upper end directly or be supported on via a transverse tube in the bearing holder (housing, cover) of a keeper 20a, 20b.Two upper segment via these

compensation bars

15,16

bar

13 and 14 of cross link in the time that two

lateral parts

1a, 1b of travelling aided bicycle fold upward deflect, thereby can make holding element 17a and the mutual move toward one another of 17b.Each lower rod end immovably can be fixed on height

adjustment section bar

19a and 19b on the contrary yaw motion.

In the time of mutual setting two

lateral parts

1a, 1b, so can be by height adjustment section bar 19a, the such deflection of 19b, they stop on longeron 2a and 2b.

Diagonal brace

18a and 18b are set respectively for this reason in pairs in the back, and it is upper and be hinged on height

adjustment section bar

19a and 19b by means of floating bearing 21a and the 21b of setting on the other hand that their are on the one hand hinged on

longeron

2a, 2b by means of floating bearing 22a or 22b.

Diagonal brace

18a and 18b bearing height in the time of height

adjustment section bar

19a, 19b deflection is adjusted section bar.Also be arranged on side simultaneously and be hinged on front diagonal brace 23a and the 23b on bearing holder (housing, cover) 25a and 25b, they cause height adjustment section bar also directed in front area when making in height

adjustment section bar

19a and 19b deflection and moving.Therefore when folding, this is apparent by Fig. 3 and 4, can not occur faulty operation, because the so mutual coupling of length of a forced guiding and

diagonal brace

18a, 18b and 23a and 23b is provided, makes their radius motion not hinder turning course.

Apparent by Fig. 3, dwindle spatial volume in the obliquity of height

adjustment section bar

19a and 19b, travelling aided bicycle occupies this spatial volume under folding state.By the final position of Fig. 4, it forms a little device, now handle 10a and 10b only stretch out trailing

wheel

8a and 8b slightly, manage equally 24a and 24b and only stretch out slightly front-wheel 7a, 7b.Therefore travelling aided bicycle is by being folded into little stacking bag according to each measure of the present utility model, and it can find position in any luggage case.

Fig. 5 illustrates the walking aid (Rollator) 31 of a travelling aided bicycle or belt wheel, and it is used as the assistant of wheeled.Travelling aided bicycle 31 has impedient people or weak people to be used as the pillar in when walking to walking and can equip other adnexa, as transports basket or transport bag, umbrella or its tool the fixture that turns battle for a walking.Not shown brake unit for the sake of simplicity, it at least acts on each trailing wheel.But for being provided, safety travelling aided bicycle can equip fixable brake.In a further form of implementation, travelling aided bicycle 31 comprises that a motor is in order to support walking movement and to drive travelling aided bicycle 31.On each handle, sensor can be set, it detects a people will drive travelling aided bicycle to which direction for this reason.Travelling aided bicycle 31 is conventionally made up of metal tube and can be generally used.Travelling aided bicycle also can be made up of plastics.

Travelling aided bicycle 31 comprises a metal framework or metal rack by this embodiment, and it has three

wheels

38 and 39 and inserting the steady arm in height adjustment section bar 35 or have two handles 44 on the upper end of independent steady arm in each underframe part.The ground contact point of

wheel

38,39 is arranged to the form of triangle.Be different from walking and turn battle or be different from each underarm mobile roof support, these assistants needn't lift from ground in any moment.Can use wire basket, seat face, pallet, beverage support, turn battle fixture and backrest as adnexa.Travelling aided bicycle 31 can easily fold with in order to transport in automobile or in public transport.

Travelling aided bicycle 31 has the longeron 32 of two bottoms in lower area.The longeron 32 of each bottom can be formed or is made up of the stable plastics that being applicable to by the metal tube of the bending or straight cross-sectional profiles with regulation.Particularly advantageously use aluminum pipe, because it has little weight also therefore than can more easily move travelling aided bicycle by people in the time using steel pipe.The pipe of the longeron 32 of each bottom can be configured to hollow pipe equally, and it has circular or other cross section.But generally speaking the longeron 32 of each bottom also can have another shape of cross section and by one arbitrarily material form, as long as the longeron 32 of each bottom has enough intensity, to can bear by height adjustment section bar 35 together with the steady arm inserting or the power being applied by independent steady arm.

On the front side of travelling aided bicycle 31, the longeron 32 of each bottom interconnects via a connection piece and hinge 34, the longeron 32 of each bottom can be folded and substantially parallel under folding state.Can for example be made for profiled member or flat part by plastics or metal with connector hinge 34 like this.Hinge 34 can be for example by forming with a flap below above, the one end of supporting respectively rotationally the longeron 32 of these two bottoms between them in a vertical rotating shaft.Can for example form such rotating shaft by metallic pin, between the superincumbent and flap below of metallic pin, extend.The end of the longeron 32 of each bottom is for example provided with swivel bearing, and this swivel bearing has an opening, and the rotating shaft of hinge 34 extends through this opening.

Alternatively, the longeron 32 of each bottom also can be connected in a unique axle via a hinge 34, and the longeron 32 of two bottoms rotates about the axle.The longeron 32 of each bottom has the shape of a bending in this case, and it can make the longeron 32 of each bottom substantially parallel under folding state.But generally speaking consider any such device as hinge 34, it is suitable for setting up and being movably rotatably connected between the longeron 32 of two bottoms, thereby they can be gathered.

In addition travelling aided bicycle 31 comprises two rear-wheel devices 38 and a front wheel device 39.Can form

wheel assembly

38 and 39 by the independent wheel with being bearing on a trunnion axis free to rotate respectively to this, as for example wheel flange wheel comprises a plastics wheel rim.Two trailing wheels are fixed on like this on the longeron 32 of each bottom, even if they are can not be counterrotating and keep their orientation around vertical axis.Particularly select like this orientation of each trailing wheel 38, make they under the state that opens of travelling aided bicycle 31 in parallel direction.Therefore stop travelling aided bicycle 31 side roll from and improve travelling aided bicycle 31 in supporting stability when people.By selecting,

roller devices

38 and 39 can be provided with idle running wheel hub, thereby travelling aided bicycle 31 moves to forward direction only.Further improve in use thus the stability of travelling aided bicycle 31 and can stop the motion backward of travelling aided bicycle, thus it for example can park on the slope, and do not roll downwards.

On the other hand, front wheel device 39(is a single-wheel for example) can rotate around its vertical axis so that improve travelling aided bicycle 31 can be handling so that travelling aided bicycle 31 can turn to different directions.Shown in form of implementation in front wheel device 39 can be rotatably fixed on hinge 34 around vertical axis.The wheel shaft of front wheel device 39 is fixed by the jaw of a leap wheel on two sides of wheel.In order to ensure good rolling characteristic, each wheel can comprise tire or the pneumatic tire of solid rubber.

But also can use two-wheel as

wheel assembly

38,39, it is made up of two parallel single-wheels that are arranged side by side.It is favourable in this front wheel device 39, using a two-wheel that can support rotationally around vertical axis especially, because improve thus rolling characteristic and the stability of travelling aided bicycle.Such two-wheel can for example can be made up of around the wheel of same vertical axis rotating support two spacing with about 20cm.Alternatively, these two single-wheels or two-wheel device can spaced apartly be arranged on a bridgeware, and it replaces an independent wheel apparatus anti-ly to reverse being plugged on connector.To this EP2030864A2 example shown in Figure 12.By such two-wheel device that comprises bridgeware in front side as the anti-tip safety of identical side that travelling aided bicycle is provided at rear side.Center between two single-wheels, two-wheel device can be rotationally connected with travelling aided bicycle 31 around a vertical axis.In the time that travelling aided bicycle 31 is folding, can make two-wheel turn to the direction of the longeron 32 of each folding bottom, thereby provide compact especially travelling aided bicycle 31 to stack unit.

In order to keep the spacing of longeron 32 of two bottoms under the state not folding, a folding fork connecting rod 46 is set between the longeron 32 of two bottoms.Fork connecting rod 46 comprises the element of two rotatable support on the longeron 32 of each bottom, they can lock via a locking device or accommodation section 33 at center, and they are rigidly connected and using when travelling aided bicycle 31 spacing each other of longeron 32 that keeps each bottom by distance bar setting up one between the longeron 32 of two bottoms.In the time that travelling aided bicycle 31 is folding, unclamp the locking device of fork connecting rod 46, thereby two arms of fork connecting rod 46 can rotate on its junction point and the longeron 32 that can change two bottoms spacing each other.

But alternatively also can use other device here, as the fork connecting rod 46 of for example single-piece, it can be inserted in the each corresponding opening or hole on the longeron 32 of each bottom.Such fork connecting rod can for example be made up of aluminum, comprises each end of vertical curve, and these ends can be inserted in the corresponding hole in the longeron 32 of each bottom.But generally speaking can use any such device, under its state that is adapted at not folding, keep the spacing between the longeron 32 of two bottoms and however still can realize the gathering of longeron 32 of each bottom.

In other form of implementation of travelling aided bicycle 31, also fork connecting rod 46 can be arranged on to other position, for example between two front-axle beams 36 and/or two with the height adjustment section bar 35 of the steady arm inserting between or between each independent steady arm 35.

These two front-axle beams 36 be in travelling aided bicycle 31 above on.Each of these two beams 36 can be rotatably fixed on the longeron 32 of a bottom or on connector around a horizontal axis and vertical axis on its front end.Each of two front-axle beams 36 is connected in rotationally a height adjustment section bar 35 with the steady arm inserting or is connected in an independent steady arm 35 on bottom.On after travelling aided bicycle 31, each back rest 37 is set.Each back rest 37 is connected in the rear end of the longeron 32 of bottom rotationally in its one end.On the other end of each back rest 37 they be connected in rotationally with insert steady arm height adjustment section bar 35 or be connected in an independent steady arm.Can for example form each front-axle beam and the

back rest

36 and 37 by metal tube.The

beam

36 and 37 of rotatable support can make to transfer to a folded state with the height adjustment section bar 35 of the steady arm inserting or independent steady arm 35 from a state (being substantially perpendicular to the longeron 32 of bottom with the height adjustment section bar 35 of the steady arm inserting or independent steady arm 35 upright under this state), and the longeron 32 that is parallel to bottom with the height adjustment section bar 35 of the steady arm inserting or independent steady arm under a rear state keeps flat.

Can be for example via each collar be based upon each

beam

36 and 37, with being rotatably connected accordingly between the height adjustment section bar 35 of the steady arm inserting or independent steady arm and the longeron 32 of each bottom, collar becomes U-shaped on the one hand and surrounds a tube portion of interlocking (utilizing this tube portion should set up is rotatably connected) and in U-shaped shape, have on the other hand a rotating shaft, and another pipe can be rotatably supported in this rotating shaft.Rotating shaft here can be for example consists of a screw, and this screw is put into collar fixing on a pipe therein for U-shaped simultaneously.

Locking device or accommodation section 33 are installed on the longeron 32 of this external each bottom, under upright state, are embedded into respectively in this locking device or accommodation section with the height adjustment section bar 35 of the steady arm inserting or one end of independent steady arm.Locking device or accommodation section 33 can for example be fixed on the longeron 32 of each bottom via each screw.According to form of implementation of the present utility model, locking device 33 comprises two sidewalls, the height adjustment section bar 35 of the conglobate steady arm with inserting of cross section or independent steady arm guiding in the time embedding between them.

In addition locking device or accommodation section 33 comprise a rear wall, and it is with the height adjustment section bar 35 of the steady arm inserting or is that independent steady arm forms a baffle plate in the time embedding.Prevent with the height adjustment section bar of the steady arm inserting or skidding off forward of independent steady arm by a locking mechanism.This locking mechanism can for example be made up of the lock dog that is provided with spring, in the time that the height adjustment section bar 35 of the steady arm with inserting or independent steady arm are inserted to locking device or accommodation section 33, as long as with the height adjustment section bar of the steady arm inserting or independent steady arm not yet in its final position, just extruding lock dog downwards.In the time of final position in its setting of the height adjustment section bar 35 of the steady arm with inserting or independent steady arm, lock dog mechanism can prevent from skidding off forward from locking device or accommodation section 33 with the height adjustment section bar of the steady arm inserting or independent steady arm.In order to discharge with the height adjustment section bar 35 of the steady arm inserting or independent steady arm, on each locking device or accommodation section 33, a relieving mechanism is set respectively, this relieving mechanism can be used manual operating.If user is handled relieving mechanism, lock dog moves down and can from locking device or accommodation section 33, produce forward with the height adjustment section bar 35 of the steady arm inserting or independent steady arm.But generally speaking also can consider other device as embedding mechanism, can lock therein respectively the end with the height adjustment section bar of the steady arm inserting or independent steady arm.

In the particularly advantageous form of implementation of locking device or accommodation section 33, it comprises two sidewalls and two directrix guiders, the pin 45 that slides on edge thereon, this pin is from the height adjustment section bar with the steady arm inserting or stretch out from two sides of independent steady arm.Form like this two walls of locking device or accommodation section 33, it has along embed gradually large height and sliding in the U-shaped groove in each sidewall from the height adjustment section bar 35 with the steady arm inserting or the pin 45 that stretches out of direction in the time that travelling aided bicycle 31 is not folding from independent steady arm for this reason.The advantage reaching is thus, the height adjustment section bar 35 of the steady arm with inserting or independent steady arm can easily be inserted in locking device or accommodation section 33 on the one hand, and the gradually large height by two sidewalls applies a pressure vertically to two height adjustment section bars or to each independent steady arm in the time embedding on the other hand.Under the state of the setting of each height adjustment section bar 35 or each independent steady arm, improve thus the intensity of travelling aided bicycle 31.

In addition travelling aided bicycle 31 comprises that two with height adjustment section bar 35 or the each independent steady arms of steady arm that insert, and they can be for example form by hollow pipe, as for example metal tube.They,, respectively in its end bending, make can fix one handle 44 thereon.Use the people of travelling aided bicycle 31 at these handle 44 upper supports one.Be used herein to the supporting force being applied to travelling aided bicycle 31 by people is delivered on the longeron 32 and each

wheel assembly

38 and 39 of each bottom with each height adjustment section bar 35 of the steady arm of each insertion or each independent steady arm.But alternatively, also can be formed by straight tube with each height adjustment section bar or each independent steady arm of each steady arm, on its each upper end, via ell or corresponding fixture, the effective in each handle 44 to be set of other can be installed.

On this external each height adjustment section bar 35 or the one-sided insertion of insertion apparatus 42 for folding shelf be set on each steady arm.Each insertion apparatus 42 can for example be made up of working of plastics, and it fixes and have with uniform spacing the projection of multiple annulars around height adjustment section bar or independent steady arm 35.Folding shelf 40 can insert between each projection on multiple different height.The projection of each annular stops the folding shelf 40 inserting to move along height adjustment section bar 35 or independent steady arm.Multiple recesses can be set especially on folding shelf 40, and itself and the shape of insertion apparatus 42 between each projection are corresponding.

Folding shelf 40 can fold at center and for example in the basket of travelling aided bicycle 31, be carried by travelling aided bicycle 31 user.Therefore travelling aided bicycle 31 not only can be used as help at large when walking, and for example tired when standby at user, can be equally as seat unit.

But replace the protruding working of plastics with multiple annulars as insertion apparatus, also can use other device.For example each height adjustment section bar 35 or steady arm can be provided with multiple holes, can insert therein the corresponding pin of folding shelf 40.Particularly draw thus advantage, folding shelf 40 can be arranged at various height with on steady arm on the height adjustment section bar 35 of the steady arm inserting or independently, thereby sitting position can be adapted to the needs of user well.

For the another side upper branching holder plane at folding shelf 40, each belt suspension ring 41 are set on folding shelf 40.Each belt suspension ring 41 are being inserted in the hanging of its suspension ring end in each curved end of steady arm in height adjustment section bar 35 or independent steady arm, thereby draw the seat face of a level, seat face is supported and is supported via the belt suspension ring 41 of hanging on each steady arm in the back by the flush mounting 40 arranging on each height adjustment section bar or each independent steady arm above.The curved end of each steady arm has a region before handle 44 for this reason, and it installs corresponding belt suspension ring 41.For fear of the landing of belt suspension ring 41.On each end of the handle portion of each support plate, annular flange is set.In order to mate sitting position, each belt suspension ring 41 can be provided with a device, and it allows to change the length of belt suspension ring 41.This can for example realize via correspondingly movably shaking hands on each belt suspension ring 41.Replace belt suspension ring 41 also can use other suspension arrangement, for example chain.

Folding shelf 40 has a hinge at center, seat, thereby folding shelf 40 is folding.Hinge connects two planes of folding shelf 40 movably on a seamed edge.Hinge bears the load of each movably part and the power rotatablely moving and is used as the bearing with one degree of freedom.Draw thus advantage, can reduce the side of occupation of land folding shelf 40 size and can easily be carried by the user of travelling aided bicycle.Especially should be by light-weighted material manufacture folding shelf, but however it still have high intensity, for example form by plastics or with the material that carbon fiber or glass fibre strengthen.

In addition in order to improve seat quality, two with the height adjustment section bar 35 of the steady arm inserting between or between each independent steady arm, a backrest 43 can be installed.Between the height adjustment section bar 35 that backrest 43 arranges two sides or extend forward between each steady arm and contribute to the people who is seated on folding shelf as back support.Can be made up of elastomeric material, for example flexible plastic band this backrest 43, its two ends are fixed on each height adjustment section bar 35 or each steady arm.Also can use leather band or webbing.Draw thus advantage, although use backrest 43, travelling aided bicycle 31 still can fold.

In another form of implementation of backrest 43, backrest is made up of firm material, as for example plastics or aluminum, and can be to be set to highly when needed accordingly or to be clamped on two height adjustment section bars 35 or each steady arm.Backrest 43 comprises clamping device on two ends for this reason, and they are adapted to the shape of each height adjustment section bar or each steady arm and they can make backrest 43 not on each support beam.Produce thus advantage, backrest 43 adds the stability for improving travelling aided bicycle 31.

Fig. 6 illustrates the state of gathering according to the longeron of the bottom of travelling aided bicycle 31 of the present utility model 32.Unclamp the locking device of distance bar or fork connecting rod 46 for this reason and mutually move in opposite directions two arms.By folding, cancel being arranged in parallel of under the not folding state of travelling aided bicycle 31 each trailing wheel 38.Under this state, each height adjustment section bar or each steady arm can fold by the manipulation of tripper and lift from each longeron 32.

Fig. 7 illustrates a state according to travelling aided bicycle 31 of the present utility model, and under this state, each height adjustment section bar 35 or each steady arm are from each locking device 33 deflections out.In the time of folding travelling aided bicycle 31, guide and be placed into a position that is parallel to the longeron 32 of each bottom with each height adjustment section bar 35 of the steady arm of each insertion or each independent steady arm by each front-axle beam 36 and each back rest 37.The point of rotation of each back rest 37 on corresponding height adjustment section bar 35 or corresponding steady arm be in the point of rotation of each front-axle beam 36 on height adjustment section bar 35 or steady arm below, thereby can height adjustment section bar 35 or independent steady arm to the direction upset of each trailing wheel 38.

In another form of implementation the point of rotation of each back rest 37 on height adjustment section bar 35 or steady arm be in the point of rotation of each front-axle beam 36 on height adjustment section bar 35 or steady arm above, thereby can adjust section bar 35 or steady arm to the direction turning height of front-wheel 39.Locking device or accommodation section 33 are set in this case on the contrary.

Fig. 8 illustrates the completely folding state according to travelling aided bicycle 31 of the present utility model.The longeron 32 that each front-axle beam 36, each height adjustment section bar 35 or each independent steady arm and each back rest 37 are arranged essentially parallel to each bottom under this state keeps flat.At this state travelling aided bicycle 31 in the compactest shape and can easily transport.

The form of implementation all illustrating and feature can combine mutually in the mode being applicable to, to realize favourable effect of the present utility model.

List of numerals

1a, 1b lateral parts

2a, 2b longeron

3a, 3b keeper

4a, 4b bearing

5a, 5b keeper

6a, 6b bearing

7a, 7b front wheel device

8a, 8b rear-wheel device

9a, 9b steady arm

10a, 10b handle

11 cross link

12 cross points

13 bars

14 bars

15 compensation bars

16 compensation bars

17a, 17b holding element

18a, 18b diagonal brace

19a, 19b height adjustment section bar

20a, 20b keeper

21a, 21b floating bearing

22a, 22b floating bearing

Diagonal brace before 23a, 23b

24a, 24b pipe

25a, 25b bearing holder (housing, cover)

26a, 26b hole

31 travelling aided bicycles

The longeron of 32 bottoms

33 accommodation sections

34 hinges

35 height adjustment section bar/steady arms

36 front-axle beams

37 back rest

38 rear-wheel devices

39 front wheel devices

40 folding shelfs

41 band/belt suspension ring

42 insertion apparatus

43 backrests

44 handles

45 pins

46 fork connecting rods

Claims

1. a travelling aided bicycle, it comprises two lateral parts (1a, 1b, 35), and these lateral parts comprise respectively: longeron (2a, the 2b of a bottom; 32) and the keeper (3a, the 3b that on the longeron of this bottom, install; 5a, 5b), these keepers have bearing (4a, 4b; 6a, 6b) at least one front wheel device (7a, 7b; 39) and rear-wheel device (8a, 8b; 38); And one at longeron (2a, 2b; 32) upper height adjustment section bar (19a, the 19b with the steady arm (9a, 9b) inserting installing; 35) or independent steady arm (9a, 9b), steady arm on upper end with the handle extending back (10a, 10b; 44), these two lateral parts (1a, 1b) are via folding fork connecting rod (11; 46) interconnect, and with height adjustment section bar (19a, the 19b of steady arm (9a, 9b) inserting; 35) or each independent steady arm (9a, 9b) along each longeron (2a, 2b; 32) longitudinal direction is arranged on longeron (2a, the 2b of bottom collapsibly; 32) upper and can be placed into from upwardly extending erection position and be arranged essentially parallel to longeron (2a, 2b; 32) stowed location extending, and

With height adjustment section bar (19a, the 19b of the steady arm (9a, 9b) inserting; 35) or each independent steady arm (9a, 9b) respectively by means of at least one thereon and at longeron (2a, 2b; 32) upper rear diagonal brace (18a, the 18b that can support around horizontal axis yaw motion; 37) or thereon in lower end region and at longeron (2a, 2b; 32) upper front diagonal brace (23a, the 23b that can support in front area yaw motion; 36) in the time of deflection, be directed to and keep, the bottom of each independent steady arm (9a, 9b) or each height adjustment section bar (19a, 19b, 32) is arranged essentially parallel to longeron (2a, 2b inserting from upwardly extending erection position; 32) extend stowed location time with bottom from longeron (2a, 2b; 32) on, lift,

Rear diagonal brace (18a, 18b are set; 37) and front diagonal brace (23a, 23b; 36), and front diagonal brace (23a, 23b; 36) be the lever of bilateral, the free front end of front diagonal brace with have for front wheel device (7a, 7b; 39) keeper (3a, the 3b) synergism of bearing (4a, 4b) and front diagonal brace are at each height adjustment section bar (19a, 19b; 35) or each independent steady arm (9a, 9b) transfer to from upwardly extending erection position and be arranged essentially parallel to each longeron (2a, 2b; 32) extend stowed location time backward with to each longeron (2a, 2b; 32) direction deflection.

2. according to travelling aided bicycle claimed in claim 1, it is characterized in that, at height adjustment section bar (19a, the 19b of the steady arm with inserting; 35) multiple bearing each intervals upper or on independent steady arm are arranged.

3. according to travelling aided bicycle claimed in claim 1, it is characterized in that, with height adjustment section bar (19a, the 19b of the steady arm (9a, 9b) inserting; 35) or each independent steady arm (9a, 9b) with bottom erect time again releasably deflect at each longeron (2a, 2b; 32) in the accommodation section (33) on, and/or at least one diagonal brace (18a, 18b; 23a, 23b; 36,37) interlock is set on, and this interlock stops the deflection unintentionally under the upright state of travelling aided bicycle.

4. according to travelling aided bicycle claimed in claim 1, it is characterized in that, two lateral parts (1a, 1b) are designed to abreast and mirror image extends symmetrically and can move relative to each other by fork connecting rod (11), each longeron (32) front side can around vertical axis forming V-shape diverge be connected to each other or connector in front side on be articulated and connected around at least one vertical axis, wherein on the connector of front side, can fix at least one front wheel device (39).

5. according to travelling aided bicycle claimed in claim 4, it is characterized in that, fork connecting rod (11) is cross link, this cross link by least two intersections and around the longitudinal axis of travelling aided bicycle in cross point (12) locate hingedly interconnective bar (13, 14) form, the bottom of these bars can be bearing in height adjustment section bar (19a yaw motion, on bottom 19b) or each independent steady arm (9a, 9b), and the upper end of these bars is via hinged fixing compensation bar (15, 16) turn up the soil and can be fixed on height adjustment section bar (19a yaw motion with bottom portion spacer segment, 19b) or steady arm (9a, 9b).

6. according to travelling aided bicycle claimed in claim 5, it is characterized in that, the upper end of each bar (13,14) of cross link (11) have extend along the longitudinal direction of travelling aided bicycle in order to the holding element (17a, 17b) of seat inserts to be installed, or seat inserts can be taken ground away or be fixedly mounted in height adjustment section bar (19a, 19b; 35) on upper or independent steady arm (9a, 9b).

7. according to travelling aided bicycle claimed in claim 6, it is characterized in that, travelling aided bicycle comprise can be upwards folding folding shelf (40) as seat inserts, it may be locked in holding element (17a, 17b) upper or can be fixed on holding element yaw motion.

8. according to travelling aided bicycle claimed in claim 6, it is characterized in that, between holding element (17a, 17b), tensioning seat fabric or other the seat being made up of flexible material are as seat.

9. according to travelling aided bicycle claimed in claim 6, it is characterized in that, on holding element (17a, 19b) or at height adjustment section bar (19a, 19b; 35) above or at steady arm (9a, 9b) above can not go up a backrest in front side and/or at rear side.

10. according to travelling aided bicycle claimed in claim 4, it is characterized in that, comprise respectively inserting the insertion apparatus (42) of folding shelf (40) with height adjustment section bar (35) or each independent steady arm of the steady arm of each insertion.

11. according to travelling aided bicycle claimed in claim 10, it is characterized in that, mates like this insertion apparatus (42), makes can insert folding shelf (40) on the height adjustment section bar (35) of the steady arm with inserting or multiple positions of independent steady arm.

12. according to the travelling aided bicycle described in claim 5,10 or 11, it is characterized in that, folding shelf (40) is fixed on the handle on steady arm in a side via band (41) or another suspension arrangement, and the another side of folding shelf (40) is fixed on on the height adjustment section bar (35) of the steady arm inserting or on independent steady arm.

13. according to the travelling aided bicycle described in claim 1,2 or 3, it is characterized in that, upper at front diagonal brace (36), at longeron (2a, the 2b of bottom; 32) upper in accommodation section (33) before and/or at height adjustment section bar (19a, the 19b of the steady arm with inserting; 35) above or at independent steady arm (9a, 9b) support that protrude upward or that can upwards erect is above set for pallet, basket or seat plate that can not go up or can be attached.

14. according to travelling aided bicycle claimed in claim 1, it is characterized in that, at longeron (2a, the 2b of bottom; 32) upper in accommodation section, (33) before can an attached platform, and this platform can be used as load platform or foot supporting.

15. according to the travelling aided bicycle described in claim 13, it is characterized in that, at longeron (2a, the 2b of bottom; 32) upper in accommodation section, (33) before can an attached platform, and this platform can be used as load platform or foot supporting.