CN2130151Y

CN2130151Y - Direction changeable and foldable baby cart

Info

Publication number: CN2130151Y
Application number: CN 92229926
Authority: CN
Inventors: 刘坤海
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-10
Filing date: 1992-08-10
Publication date: 1993-04-21
Anticipated expiration: 2002-08-10

Abstract

The utility model relates to a direction changeable and foldable baby cart, comprising a hand rod, a holding sleeve gasket at the upper part of the hand rod, which is integrally molded with spring clamp blocks at two sides of the lower part of the hand rod in plastic injection, an upper rack respectively integrally molded with the lower backrest sectioning device of the upper rack, a support chip and an upper direction changing position seat in plastic injection, a front leg integrally molded with the upper seat of a lower front leg running wheel and a middle seat of the lower front leg running wheel in plastic injection and a back leg integrally molded with an upper joint fastener of the front and the back legs, a back leg positioning clamping block of the joint fastener and the lower seat of a back leg running wheel in plastic injection. The structure can achieve the purposes of assembling working hours saving, component processing programs reducing, defective products rate decreasing, cost reducing and production efficiency increasing.

Description

Direction changeable and foldable baby cart

The utility model relates to a kind of capable of reversing, perambulator of folding.

Commonly use at present capable of reversing, fold perambulator 1(as shown in Figure 1), include:

Leader's bar 11, its top be arranged with grip sleeve gasket 111 and after the both sides riveting is established two steady rings (figure does not show) and is worn for Jiong shape commutation pull bar (figure does not show) again in the both sides, bottom of this Jiong shape commutation pull bar respectively with the commutation fixed plate top riveted of (figure does not show), two of this handlebar stem 11 inboards also respectively are provided with two locating dowel pins that pass commutation spacer two chutes respectively in addition, this handlebar stem 11 two in side-lowers then respectively by cushion cover 115 respectively with on put frame 14 two outsides, bottom articulate, and be respectively equipped with spring fixture block 116 is established spring with card a end;

One commutation pull bar (figure does not show) is Jiong shape, and the steady ring of handlebar stem 11 both sides is passed at its two ends, and both sides, its underpart are located at two inboards of handlebar stem 11 respectively with the top riveting of commutation spacer;

Two commutation spacers (figure does not show) are located at handlebar stem 11 both sides by the top riveting respectively, and its underpart is arranged with spring one end of (figure does not show) respectively, and the end by spring is fastened on the spring fixture block 116 of 11 liang of inboards of handlebar stem again;

Put frame 14 on two, its bottom difference mat cushion cover 115 articulates with two inboards, bottom of handlebar stem 11, and on put the bottom of frame 14 two inboards have riveting to establish a locking respectively leaning against sectionaliser 141 and folding the foot-driven lever both sides fixed plate of (figure does not show) (figure does not show) of supporting blade 16 arranged, in addition, on put the inboard appropriate location of frame 14 and be arranged with pad 142 and articulate with the two side lower part riveteds that lean against auxiliary side lever (figure does not show) with rear foot auxiliary rod (figure do not show) two upper lateral parts and two respectively, this outer upper of putting frame 14 on two is fixed with commutation positioning seat (icon) respectively, and be coated with sinciput tarpaulin rod (figure does not show) in last both sides, upper end of putting frame 14, in addition, this puts the inboard desired location of frame 14 on two and the rear end of both sides grab rail (figure does not show) articulates fixing;

Both sides grab rail (figure do not show), rear end respectively with on put frame 14 two inboard pivot joints, its front end then articulates with the inboard of the rear foot 17 respectively;

Two supporting blades 16, locking is respectively leaning against on the sectionaliser 141;

One rear foot 17, its two inboard near above the front end pivot joint of position and both sides grab rail, and pin joint fastener 171 before and after riveting is provided with respectively in its appropriate location, both sides in addition, and wherein this front and back pin joint fastener 171 and be provided with one the commutation positioning wedged block 179, and in two inboards of this rear foot also respectively two outsides of mat body (figure does not show) and rear foot auxiliary rod articulate, the down either side of this rear foot pin 17 also respectively riveting establish and be fixed with the movable wheel seat 19 of the rear foot;

The movable wheel seat 19 of two rear feet, riveted is fixed on two side lower parts of the rear foot 17 respectively, runs through for trailing wheel axostylus axostyle 32 two ends respectively, and is pivoted with trailing wheel 31 respectively and respectively is provided with back foot brake (figure does not show) respectively;

Two forward foot in a step 23 are articulated by its upper outside and front and back pin joint fastener 171 respectively, and a slide block (figure does not show) is fixed and be with in the bottom of this two forward foot in a step 23 then with the forward foot in a step activity wheel seat of honour 231 riveteds respectively;

Two forward foot in a step activities wheels seat of honour 231 is fixed with the forward foot in a step 23 bottom riveteds respectively, and this forward foot in a step activity wheel seat of honour 231 inboard and articulate with forward foot in a step auxiliary rod two forequarters by pad (figure does not show);

Seat 232 in two forward foot in a step activities wheel, fixing with the forward foot in a step activity wheel seat of honour 231 respectively;

Following 233 on two forward foot in a step activities wheel, seat 232 is fixing in taking turns with forward foot in a step activity respectively, and be provided with rubber arm shock resistance block (figure does not show) between the seat 232 in its top and the forward foot in a step activity wheel, supply front truckle axostylus axostyle 234 to run through respectively in the bottom of following 233 on this two forward foot in a step activity wheel in addition and at left and right two front-wheels 25 that are pivoted with respectively;

One forward foot in a step auxiliary rod (figure do not show), its anterior mat pad (figure does not show) articulate with the inboard of two forward foot in a step 23 respectively, and its two ends afterbody then articulates with the both sides, the place ahead of rear foot auxiliary rod (figure does not show);

One rear foot auxiliary rod (figure does not show), the two ends afterbody of its both sides, the place ahead and forward foot in a step auxiliary rod articulates, its nearly central part in two outsides is two inboard pivot joints of mat pad (figure do not show) and the rear foot 17 then, two outsides of this rear foot auxiliary rod and being provided with fold location trip (figure does not show) in addition, for the fixing that folds foot-driven lever (figure does not show) both sides fixed plate, in addition, two outer upper of this rear foot auxiliary rod then respectively mat pad and both sides on put frame 14 and articulate;

One folds foot-driven lever (figure do not show), and its both sides have fixed plate, and by the both sides fixed plate respectively riveting be located at both sides on put frame 14 bottoms, and wherein the fixed plate top of these both sides has Ka Gou, the bottom of both sides fixed plate then respectively hook establish an end of spring;

One leans against segmentation pull bar (figure does not show), the slotted eye (figure does not show) and the top slotted eye that leans against sectionaliser 141 of both sides, rod below run through at its cross bar two ends, below respectively, and hook is being established the spring other end of (figure does not show) respectively, and its cross bar two ends, top then wear and lean against bar two inboards of (figure does not show) in addition;

One leans against bar (figure does not show), and its down either side is riveted on leaning against on the sectionaliser 141 of both sides respectively, and its two inboards, top then articulate with the both sides, bottom that lean against auxiliary rod (figure does not show);

One leans against auxiliary rod (figure do not show), and both sides, its underpart articulate with the both sides, top that lean against bar, and its both sides, top respectively with lean against the secondary side bar pivot and connect;

Two lean against auxiliary side lever (figure do not show), and its top articulates with the both sides, top that lean against auxiliary rod respectively, its underpart then respectively the mat pad with on put frame 14 two inboard pivot joints;

One rides net (figure does not show), is plugged on the medial surface of two forward foot in a step 23 respectively by the cross bar two ends of its top;

One foot-operated net auxiliary rod (figure does not show) is plugged on two forward foot in a step, 23 medial surface desired locations respectively by the two ends of cross bar above it;

Some rivets 95;

By the combination of above-mentioned member, the pull bar that then will commutate when user's desire is changed the direction of handlebar stem 11 upwards draws and can commutate, and then tramps with one's feet when desiring to fold and fold foot-driven lever (scheming not show) and can fold.The above-mentioned product of commonly using has following shortcoming:

1, handlebar stem, on put frame, the forward foot in a step, the rear foot and all need through work programmes such as Pipe Cutting, bending, shaping, baking vanish, unusual trouble, and adopt its intensity difference of hollow iron pipe, safety is low.

2, too many place must use rivet to rivet, and it as long as everyone knows a position defective to staking is arranged, is easy to cause defective products except member is numerous and diverse.

3, numerous and diverse because member is many, increase machining period and cost relatively, and very inconvenient on the part management.

4, the member of too many iron material, scratch child's chance can increase relatively.

5, required labourer is many.At present labourer's management, cost cause the very big difficulty of manufacturer, and this kind commonly used product structure and increased demand to the labour virtually, reduced the competitiveness of dealer for international export markets relatively.

6, handlebar stem, on put region of interest such as frame, the forward foot in a step, the rear foot plastic material be easy to generate friction with mutual the engaging of iron material and form the gap and produce and shake tolerance and damage even can't use.

Therefore, the purpose of this utility model promptly is to provide a kind of capable of reversing, perambulator of folding, its partial component adopts the integral structure of one ejection formation, when saving the assembler with reduce member and work programme and reduce defective products, cost-cutting is enhanced productivity and safety relatively, and makes this product have the competitiveness of the export trade striven for.

Capable of reversing, the perambulator that folds of the present utility model comprises:

Leader's bar, its top is arranged with to grip sleeve gasket and establish two steady rings in the both sides riveting and wears for Jiong shape commutation pull bar, the both sides, bottom of this Jiong shape commutation pull bar respectively with the top riveted of commutation fixed plate, two of this handlebar stem inboards also respectively are provided with two locating dowel pins that pass commutation spacer two chutes respectively in addition, two lower inside of this handlebar stem then respectively the mat cushion cover respectively with two on put frame two outsides, bottom articulate, and be respectively equipped with the spring fixture block is established spring with card a end;

One commutation pull bar is Jiong shape, and the steady ring of handlebar stem both sides is passed at its two ends, and both sides, its underpart are located at handlebar stem two inboards with the top riveting of commutation spacer respectively;

Two commutation spacers are located at the handlebar stem both sides by the top riveting respectively, and its below is arranged with an end of spring respectively, and the end by spring is fastened on the spring fixture block of handlebar stem two inboards again;

Put frame on two, bottom two inboard pivot joints of bottom difference mat cushion cover and handlebar stem, and this put on two frame lower portion two inboards respectively riveting be provided with the sectionaliser that leans against that locking has supporting blade, and riveting is provided with the both sides fixed plate that folds foot-driven lever, this is put the inboard appropriate location of frame on two and is arranged with pad and articulates with the two side lower part riveteds that lean against auxiliary side lever with two upper lateral parts and two of rear foot auxiliary rod respectively in addition, in addition, this outer upper of putting frame on two is respectively equipped with the commutation positioning seat, and have a top seat in upper end of this two commutations positioning seat and articulate with the top angular adjustment seat both sides of the bottom of sinciput tarpaulin rod, and be provided with the hole seat on this commutation positioning seat top and plant for two bottoms of back top bar, in addition, this puts the inboard desired location of frame on two and the rear end of both sides grab rail articulates fixing;

Both sides grab rail, rear end respectively with two on put frame two inboard pivot joints, its front end then articulates with the inboard of the rear foot respectively;

One rear foot engaging lever is Jiong shape, and its two ends engage the front opening of the rear foot respectively;

Two rear feet, engage with rear foot engaging lever respectively by front opening, and its two inboard near above the front end pivot joint of position and two grab rails, in addition its appropriate location, both sides be respectively equipped with a lateral surface near above the position be provided with a front and back pin joint fastener of a rear foot positioning wedged block, and in also two outsides of mat pad and the rear foot auxiliary rod pivot joint respectively of two inboards of this rear foot, in addition, two side lower parts of this rear foot also are respectively equipped with the movable wheel seat of the rear foot and are pivoted with trailing wheel and are provided with the back foot brake to cooperate trailing wheel axostylus axostyle two ends more respectively;

Two forward foot in a step, articulate by its upper outer and front and back pin joint fastener respectively, cover for seat was provided with a slide block during then took turns with activity with the forward foot in a step activity wheel seat of honour respectively the below of this two forward foot in a step, in addition, mat should activity seat and the mat two ends of should activity taking turns following cooperation front-wheel axostylus axostyle two front-wheels that are pivoted respectively again after following of movable wheel combines in the wheel;

One forward foot in a step auxiliary rod, its anterior mat pad articulate with the inboard of two forward foot in a step respectively, and its two ends afterbody then articulates with the front part sides of rear foot auxiliary rod;

One rear foot auxiliary rod, the two ends afterbody of its both sides, the place ahead and forward foot in a step auxiliary rod articulates, its nearly central part in two outsides is two inboard pivot joints of mat pad and the rear foot then, two outsides of this rear foot auxiliary rod and being provided with fold the location trip and fix for folding foot-driven lever both sides fixed plate in addition, two outer upper of this rear foot auxiliary rod then respectively mat pad and both sides on put the frame pivot joint;

One folds foot-driven lever, and its both sides have fixed plate, and by the both sides fixed plate respectively riveting be located at both sides on put the frame bottom, and wherein the fixed plate top of these both sides has Ka Gou, the below of both sides fixed plate then respectively hook establish an end of spring;

One leans against the segmentation pull bar, and its cross bar two ends, below are run through slotted eye that leans against both sides, bar bottom and the top slotted eye that leans against sectionaliser respectively, and hook is being established the other end of spring respectively, and its cross bar two ends, top then are to be set on to lean against bar two inboards in addition;

One leans against bar, and its bottom, both sides is riveted on leaning against on the sectionaliser of both sides respectively, and its two inboards, top then articulate with the both sides, bottom that lean against auxiliary rod;

One leans against auxiliary rod, and its both sides, below articulate with the both sides, top that lean against bar, its both sides, top then respectively with lean against the secondary side bar pivot and connect;

Two lean against auxiliary side lever, and its top articulates with the both sides, top that lean against auxiliary rod respectively, the two inboard pivot joints that frame is then put on the mat pad and two respectively in its underpart;

One rides net, is plugged on the medial surface of two forward foot in a step respectively by the cross bar two ends of its top;

One rides the net auxiliary rod, is plugged on the medial surface desired location of two forward foot in a step respectively by its both upper ends thereof;

Described handlebar stem, itself and the gripping sleeve gasket of top and the spring fixture block of both sides, below are the global facility of plastics one ejection formation;

The commutation positioning seat that leans against sectionaliser, supporting blade and top of putting frame and its below on described is the global facility of plastic shaping;

Seat is the global facility of plastics one ejection formation in the forward foot in a step activity wheel seat of honour of described two forward foot in a step and below, the forward foot in a step activity wheel;

The movable wheel seat of the rear foot of the front and back pin joint fastener of described two rear feet and top and the rear foot positioning wedged block of this joint fastener and below is the global facility of plastics one ejection formation.

Following of the forward foot in a step activity wheel of wherein forward foot in a step below, its axle hole seat is long ellipticity, for the front-wheel axostylus axostyle wear and the spring setting thereon.

The movable wheel of the integrated rear foot of wherein rear foot below institute, its axle hole seat is long ellipticity, for the trailing wheel axostylus axostyle wear and the spring setting thereon.

Handlebar stem wherein, on put frame, the forward foot in a step, the rear foot plastic material be nylon plastic(s) or PP impact resistant plastics or rigidity plastics.

Now conjunction with figs. describes in detail as the back:

Description of drawings:

Fig. 1 is a three-dimensional exploded view of commonly using product.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is a block diagram of the present utility model.

Fig. 4 A is the following generalized section of forward foot in a step activity wheel of the utility model forward foot in a step below.

Fig. 4 B is that the utility model rear foot engaging lever engages with the rear foot and the side schematic view of the movable wheel seat of the trailing wheel of below.

Shown in Fig. 2～Fig. 4 A, 4B, capable of reversing, the perambulator that folds of the present utility model includes:

Leader's bar 5, its top are arranged with and grip sleeve gasket 52 and establish two steady rings 53 wearing for Jiong shape commutation pull bar 12 respectively in the both sides riveting, the both sides, bottom of this Jiong shape commutation pull bar 12 respectively with the top riveted of commutation spacer 13.Two of this handlebar stem 5 inboards also respectively are provided with two locating dowel pins (figure does not show) that pass 13 liang of chutes of commutation spacer respectively in addition, two lower inside of this handlebar stem 5 then respectively mat cushion cover (figure does not show) respectively with two on put frame 61 two outsides, bottom articulate, and be respectively equipped with spring fixture block 516 and establish spring one end of (figure does not show) with card;

One commutation pull bar 12 is Jiong shape, and the steady ring 53 of handlebar stem 5 both sides is passed at its two ends, and its both sides, below are located at 5 liang of inboards of handlebar stem with the 13 top rivetings of commutation bit slice respectively;

Two commutation spacers 13 are located at handlebar stem 5 both sides by the top riveting respectively, and its underpart is arranged with spring one end of (figure does not show) respectively, and the other end by spring is fastened on the spring fixture block 516 of 5 liang of inboards of handlebar stem again; Put frame 61 on two, bottom difference mat cushion cover (figure does not show) articulates with two inboards, bottom of handlebar stem 5, and these two inboards of putting the lower portion of frame 61 on two be respectively equipped with locking have supporting blade 613 lean against sectionaliser 612 and riveting is provided with the both sides fixed plate 281 that folds foot-driven lever 28, this is put the inboard appropriate location of frame 61 on two and is arranged with pad (figure does not show) and articulates with two side lower parts that lean against auxiliary side lever 35 with two upper lateral parts and two of rear foot auxiliary rod 27 respectively in addition, in addition, top angular adjustment seat 381 both sides that this outer upper of putting frame 61 on two is respectively equipped with commutation positioning seat 611 and has a top seat 64 and the bottom of sinciput tarpaulin rod 38 in upper end of this two commutations positioning seat 611 articulate, and these two commutations positioning seat, 611 tops are provided with hole seat 6141 and plant for one one 391 of the both sides of back top bar 39, in addition, this puts the inboard desired location of frame 61 on two and the rear end of side handrail bar 15 articulates fixing;

Both sides grab rail 15, rear end respectively with two on put frame 61 the inboard articulate, its front end then articulates with the inboard of the rear foot 8 respectively;

One rear foot engaging lever 9 be Jiong shape, and its two ends engages the front opening 819 of the rear foot 8 respectively;

Two rear feet 8, system is engaged with rear foot engaging lever 9 respectively by front opening 819, and its two inboard near above the front end pivot joint of position and two grab rails 15, and in addition its both sides be respectively equipped with a lateral surface near above the position be provided with the front and back pin joint fastener of a rear foot positioning wedged block 85, and articulate in two inboard mat pads 84 respectively of this rear foot 8 two outsides, and the down either side of this rear foot 8 also is respectively equipped with rear foot sliding seat 82 and is pivoted with trailing wheel 31 and is provided with back foot brake (figure does not show) to cooperate trailing wheel axostylus axostyle 32 two ends more respectively with rear foot auxiliary rod 27;

Two forward foot in a step 7, it is articulated by its upper outside and front and back pin joint fastener 81 respectively, seat 72 was arranged with a slide block 74 during then took turns with forward foot in a step activity with the preceding movable wheel seat of honour 71 respectively the bottom of this two forward foot in a step 7, in addition the forward foot in a step 7 and mat should the activity wheel in seat 72 articulate this two front-wheel 25 respectively with the two ends that mat should following 73 cooperation of activity wheel front-wheel axostylus axostyle 234 again after movable wheel combine for following 73, also the seat of honour 71

cooperation pads

715 and 26 liang of forequarters pivot joints of forward foot in a step auxiliary rod are taken turns in mat forward foot in a step activity in addition;

One forward foot in a step auxiliary rod 26, its anterior mat pad 715 articulate with the inboard of two forward foot in a step respectively, and its two ends afterbody then articulates with the front part sides of rear foot auxiliary rod 27;

One rear foot auxiliary rod 27, the two ends afterbody of its both sides, the place ahead and forward foot in a step auxiliary rod 26 articulates, its its nearly central part in two outsides is two inboard pivot joints of mat pad 84 and the rear foot 8 then, two outsides of this rear foot auxiliary rod 27 and being provided with fold location trip 271 and fix for folding foot-driven lever 28 both sides fixed plates 281 in addition, in addition, two outer upper of this rear foot auxiliary rod 27 are then respectively put frame 61 on mat pad (figure does not show) and the both sides and are articulated;

One folds foot-driven lever 28, its both sides have fixed plate 281, and by both sides fixed plate 281 respectively riveting be located at both sides on put frame 61 belows, and wherein fixed plate 281 tops of these both sides have card ditch 2811, the below of both sides fixed plate 281 then respectively hook establish spring one end of (figure does not show);

One leans against segmentation pull bar 30, its cross bar 301 two ends, below are run through slotted eye (figure does not show) that leans against both sides, bar 33 bottom and the top slotted eye that leans against sectionaliser 612 (figure does not show) respectively, and hook is being established the spring other end of (figure does not show) respectively, and its cross bar 303 two ends, top then are set on and lean against 33 liang of inboards of bar in addition;

One leans against bar 33, and its down either side is riveted on leaning against on the sectionaliser 612 of both sides respectively, and its two inboards, top articulate with the both sides, bottom that lean against auxiliary rod 34;

One leans against auxiliary rod 34, and its both sides, below articulate with the both sides, top that lean against bar 33, its both sides, top then respectively with lean against auxiliary side lever 35 and articulate; Two lean against auxiliary side lever 35, and its top articulates with the both sides, top that lean against auxiliary rod 34 respectively, the two inboard pivot joints that frame 61 is then put on the mat pad 614 and two respectively in its below;

One rides net 36, is plugged on the medial surface of two forward foot in a step 7 respectively by cross bar 361 two ends of its top;

One rides net auxiliary rod 37, is plugged on the inboard desired location of two forward foot in a step 7 respectively by the two ends on its top;

By the combination of above-mentioned member, the pull bar 12 that then will commutate when user's desire is changed the direction of handlebar stem 5 upwards draws and can commutate; When desiring to fold, then tramp with one's feet and fold foot-driven lever 28 and can fold.

Characteristic of the present utility model is:

This handlebar stem 5, the gripping sleeve gasket 52 of itself and top and the spring fixture block 516 of both sides, below are all by plastics one ejection formation;

Should on put frame 61, with its below the commutation positioning seat 611 that leans against sectionaliser 612, supporting blade 613 and top be all plastics one ejection formation;

This two forward foot in a step 7 is all plastics one ejection formation with seat 72 in the forward foot in a step activity of the below wheel seat of honour 71, the forward foot in a step activity wheel;

This two rear foot 8 is all plastics one ejection formation with the rear foot positioning wedged block 85 of the front and back pin joint fastener 81 of top and this joint fastener and the movable wheel seat 82 of the rear foot of below.

In addition, following 73 on the forward foot in a step activity of the forward foot in a step 7 belows in the utility model member wheel, its axle hole seat 739 are that long ellipticity wears for front-wheel axostylus axostyle 234 and little spring 738 settings have the shock-absorbing buffering effect thereon; Similarly, the movable wheel seat 82 of the integrated rear foot of wherein the rear foot 8 belows institute, its axle hole seat 821 are that long ellipticity wears for trailing wheel axostylus axostyle 32 and spring 828 is provided with and has the shock-absorbing buffering effect thereon.

In addition, most of members adopt plastics in the utility model member, and handlebar stem wherein 5, on put the plastics of most of members such as frame 61, the forward foot in a step 7, the rear foot 8 for adopting nylon or PP impact resistant plastics or toughened plastic.

The utility model is concluded has following advantages:

1, save the procedures such as Pipe Cutting, bending shaping, baking vanish, processing assembly facility relatively also reduces cost.

2, the member that adopts the plastics solid design and hollow iron pipe and the intensity of commonly using member that need possess punching are compared, and the steadiness height improves security relatively.

3, reduce at the closing-up position, and fraction defective reduces relatively.

4, saving member, buying or management are upper convenient.

5, do not have situation because of too many iron material member scratch child.

6, required labourer reduces, and is also very convenient in the management except reducing cost, and virtually improved competitiveness and helped to strive for export markets.

7, can cooperate the consistent color of plastic injection, unify and the tool aesthetic feeling on its overall appearance.

8, to produce the tolerance chance little in the junction of each member because plastics and plastic material engage or combination is difficult for having tolerance clearance to produce and the formation tolerance causes defective products.

Claims

1, a kind of capable of reversing, perambulator of folding comprises:

Leader's bar, its top is arranged with to grip sleeve gasket and establish two steady rings in the both sides riveting and wears for ㄇ shape commutation pull bar, the both sides, bottom of this ㄇ shape commutation pull bar respectively with the top riveted of commutation fixed plate, two of this handlebar stem inboards also respectively are provided with two locating dowel pins that pass commutation spacer two chutes respectively in addition, two lower inside of this handlebar stem then respectively the mat cushion cover respectively with two on put frame two outsides, bottom articulate, and be respectively equipped with the spring fixture block is established spring with card a end;

One commutation pull bar is ㄇ shape, and the steady ring of handlebar stem both sides is passed at its two ends, and both sides, its underpart are located at handlebar stem two inboards with the top riveting of commutation spacer respectively;

One rear foot engaging lever is ㄇ shape, and its two ends engage the front opening of the rear foot respectively;

It is characterized in that:

2, capable of reversing, the perambulator that folds as claimed in claim 1 is characterized in that, following of the forward foot in a step activity wheel of forward foot in a step below wherein, its axle hole seat is long ellipticity, for the front-wheel axostylus axostyle wear and the spring setting thereon.

3, capable of reversing, the perambulator that folds as claimed in claim 1 is characterized in that, the movable wheel seat of the integrated rear foot of rear foot below institute wherein, its axle hole seat is long ellipticity, for the trailing wheel axostylus axostyle wear and the spring setting thereon.

4, capable of reversing, the perambulator that folds as claimed in claim 1 is characterized in that, handlebar stem wherein, on put frame, the forward foot in a step, the rear foot plastic material be nylon plastic(s) or PP impact resistant plastics or rigidity plastics.