CN106985888A

CN106985888A - Perambulator

Info

Publication number: CN106985888A
Application number: CN201610812421.3A
Authority: CN
Inventors: 浅野顺; 浅野顺一; 山口勲
Original assignee: Combi Corp
Current assignee: Combi Corp
Priority date: 2015-09-11
Filing date: 2016-09-09
Publication date: 2017-07-28
Anticipated expiration: 2036-09-09
Also published as: TW201710127A; JP6639165B2; CN106985888B; KR20170031625A; JP2017052479A; TWI691422B

Abstract

Present invention offer is a kind of can be according to intended operation and by the perambulator of driving source driving moment.Perambulator (1) possesses：Baby's vehicle main body (2)；With driving source (5), supported by baby's vehicle main body (2), and at least one wheel into multiple wheels (4) provides driving force.Wherein, baby's vehicle main body (2), with the base frame (11) for supporting multiple wheels (4) and are linked to base frame (11) and support seat part (8a, 8b) upper box (12).Base frame (11) has the tilting bar (11c) more prominent than the rotation axis Ar2 of the wheel (42) positioned at rearmost.

Description

Perambulator

Technical field

The present invention relates to a kind of perambulator of the driving moment by driving source.

Background technology

For example Patent Document 1 discloses a kind of perambulator with motor.In the perambulator described in patent document 1 In, when pressing handle, meeting drive connection is in the motor of wheel.Especially, the perambulator described in patent document 1 passes through even The motor for being connected to power supply is voluntarily advanced.Even if that is, the perambulator operator described in patent document 1 does not push away, also can It is enough only independently to be travelled by the driving force of motor.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2011-68336 publications

The content of the invention

Technical problem

However, in the perambulator described in patent document 1, due to utilizing for a long time, also it is contemplated that power supply fills Electricity situation about running out.When the electricity that power supply fills runs out, when making the wheel rotation that should promote perambulator, motor can be made Acted on for load, therefore be not easy to promote perambulator.Especially, it is necessary to make front-wheel during difference of height on tread is crossed Float and travel perambulator with trailing wheel, when motor as load effect in trailing wheel when, cause perambulator operability significantly Reduction.

The present invention allows for problem above point and completed, its object is to improve by driving source driving moment when baby The operability of youngster's car.

Technical scheme

The perambulator of the present invention possesses：Wheel, is present multiple；

Seat part；

Baby's vehicle main body, with the base frame for supporting multiple above-mentioned wheels and is linked to above-mentioned base frame and supports above-mentioned seat portion The upper box of part；And

Driving source, is supported by above-mentioned baby's vehicle main body, and at least one wheel into multiple above-mentioned wheels provides drive Power,

Wherein, above-mentioned base frame has the tilting bar more prominent than the rotation axis of the wheel positioned at rearmost.

In the perambulator of the present invention, can also possess：Detecting element, detection input to above-mentioned perambulator main body and row Sail the related information of operation；And control device, the information that is detected based on above-mentioned detecting element controls above-mentioned driving source, with This adjusts the driving force that the driving source is supplied to above-mentioned wheel.

In the perambulator of the present invention, above-mentioned baby's vehicle main body can also have the handle for being connected to above-mentioned upper box, on Above-mentioned handle, and the information that heavy burden of the detection to putting on the handle is related can be arranged at by stating detecting element.

In the perambulator of the present invention, the wheel for providing driving force by above-mentioned driving source in multiple above-mentioned wheels can be Front-wheel in trailing wheel, multiple above-mentioned wheels can be supported via castor by above-mentioned base frame.

In the perambulator of the present invention, above-mentioned driving source can have the first driving element and the second driving element, wherein, At least one wheel into multiple above-mentioned wheels of first driving element provides driving force, and the second driving element is to multiple above-mentioned cars Wheel in wheel, different from providing the wheel of driving force by above-mentioned first driving element provides driving force, and independently of above-mentioned First driving element and set.

In the perambulator of the present invention, above-mentioned first driving element and above-mentioned second driving element can be only fitted to than above-mentioned The position in tilting bar more front.

In the perambulator of the present invention, above-mentioned base frame can have a pair of the side bases configured separated by a distance in the lateral direction The respective rear end of above-mentioned a pair of side bases frame can be interconnected by frame, above-mentioned tilting bar.

In the perambulator of the present invention, above-mentioned upper box is connected to above-mentioned base frame via linkage component, and by relative to Above-mentioned linkage component rotates and can folded relative to the base frame, is in what is folded relative to above-mentioned base frame in above-mentioned upper box Under state, the handle for being connected to above-mentioned baby's vehicle main body of above-mentioned upper box may be inserted into by above-mentioned a pair of side bases frame and above-mentioned In the space that tilting bar is surrounded.

Invention effect

According to the present invention, by using rearward prominent tilting bar, the operability of perambulator can be improved.

Brief description of the drawings

Fig. 1 is the figure for the perambulator for showing an embodiment with deployed condition from front.

Fig. 2 is to show to remove perambulator under seat part state, in the deployed condition shown in Fig. 1 from side Figure.

Fig. 3 is the figure that folded state is in from the perambulator shown in shown in side, Fig. 2.

Fig. 4 is the block diagram for the structure for schematically showing the perambulator shown in Fig. 1.

Fig. 5 is the driving element and the stereogram of wheel that the perambulator shown in Fig. 1 is shown from rear.

Fig. 6 is the circuit diagram for showing to constitute the annexation of the dc motor of driving element.

Fig. 7 is the stereogram for showing to be connected to the power supply of driving element and control device.

Fig. 8 shows the top view of the handle of the perambulator shown in Fig. 1 for expansion.

The figure that Fig. 9 illustrates for the structure of the detecting element of the handle for the perambulator to being arranged at shown in Fig. 1.

Figure 10 is the circuit diagram of the detecting element shown in Fig. 9.

Figure 11 is the figure of example for showing to be adjusted the driving force of driving element based on the information from detecting element Table

Figure 12 is for being illustrated to the effect for promoting the detecting element during handle of the perambulator shown in Fig. 1 forwards Figure.

The effect of detecting element when Figure 13 is for handle to pressing the perambulator shown in Fig. 1 downwards is illustrated Figure.

The work of detecting element when Figure 14 is for handle to rearward drawing the perambulator shown in Fig. 1 and during gug With the figure illustrated.

Figure 15 is for the stereogram to illustrating the state during perambulator steering shown in Fig. 1.

Figure 16 is the stereogram for showing to be operated the appearance of tilting bar with pin.

Figure 17 shows the side view of the rear portion of base frame for expansion.

Figure 18 shows the rearview of the rear portion of base frame for schematically expansion.

Symbol description

1 perambulator

2 baby's vehicle main bodies

10 frame main bodys

11 base frames

11a, 11b side base frame

11c tilting bars

12 upper box

13 front linkage components

14 intermediate connecting rod parts

20 handles

21 functional units

21a, 21b shank part

22 handle bodies

3 castors

4 wheels

41 front-wheels

42 trailing wheels

5 driving sources

51 first driving elements

52 second driving elements

51a, 52a drive shaft

51b, 52b dc motor

6 detecting elements

61 deformeters

7 control devices

70 containing cases

75 power supplys

76 battery trays

76e battery tray terminals

D1 fore-and-aft directions

D2 left and right directions

D3 above-below directions

C1 junctions

Embodiment

Hereinafter, refer to the attached drawing is illustrated to embodiments of the present invention.Fig. 1 to Figure 18 is for the baby to embodiment The figure that youngster's car 1 is illustrated.Wherein, Fig. 1 is the stereogram for the perambulator 1 that an embodiment is shown from positive direction.In Fig. 1 In shown perambulator 1, the first seat part 8a and second seat part 8b are supported by baby's vehicle main body 2.First seat Part 8a and second seat part 8b are the positions that infant takes one's seat, and are the parts that left and right is arranged side-by-side.Taken one's seat to protect Avoided in seat part 8a, 8b infant by sunshine and/or wind, each seat part 8a, 8b are provided with hood 9a, 9b.

It should illustrate, in this manual, "front", "rear" relative to perambulator 1 and its composed component, " on ", " under ", " fore-and-aft direction ", " above-below direction " and " left and right directions " term when there is no special instructions, refer to hold and grasp "front", "rear", " on ", " under " on the basis of the operator for the handle 20 for making the perambulator 1 in deployed condition, " front and back To ", " above-below direction " and " left and right directions ".Further specifically, " papers of the fore-and-aft direction d1 " equivalent to relative Fig. 1 For table in direction.Also, if without special instructions, " preceding " refers to the side of operator's direction of push handle, Fig. 1's Before face side on paper is.On the other hand, " above-below direction d3 " refers to the side orthogonal and orthogonal with ground plane with fore-and-aft direction To.Therefore, when ground plane is horizontal plane, " above-below direction d3 " refers to vertical direction.In addition, " left and right directions d2 " is finger widths Direction, be and " fore-and-aft direction d1 " and " above-below direction d3 " all orthogonal directions.

Fig. 2 shows the perambulator 1 removed in the state of seat part 8a, 8b from side.Baby's vehicle main body shown in Fig. 2 2 handles 20 being connected by frame body 10 and with frame body 10 are constituted.

Two seat parts 8a, 8b of support top are connected with frame body 10, the base frame 11 for supporting multiple wheels 4 Frame 12.Upper box 12 is supported in a slanted state relative to base frame 11.The forward portion of upper box 12 and the front of base frame 11 Part is connected via front linkage component 13, and the center section of upper box 12 is with the rear portion of base frame 11 via intermediate connecting rod Part 14 and connect.Front linkage component 13 and intermediate connecting rod part 14 play a part of connecting rod, so as to make upper box 12 rotate relative to base frame 11.

Especially, side base frame 11a, 11b of the left and right configured separated by a distance on left and right directions d2 are provided with base frame 11. D1 extends side base frame 11a, 11b of left and right along the longitudinal direction, and tilting bar is linked with side base frame 11a, 11b of the left and right rear end (tipping bar)11c。

Front-wheel 41 and trailing wheel 42 are installed in each side base frame 11a, 11b.In the present embodiment, each front-wheel 41 is via pin Wheel 3 is supported in the way of it can rotate and can turn to by side base frame 11a, 11b.Castor 3 can be with rotary shaft with front-wheel 41 The mode rotated centered on line Ar1 supports front-wheel 41, and castor 3 can with rotation axis Ar1 it is nonparallel, in this implementation It is to be turned to centered on the steer axis As1 parallel with the direction that rotation axis Ar1 is orthogonal in mode.That is, preceding Wheel 41 is supported freely and by castor 3 by rotation in the way of can changing sense of rotation.

On the other hand, each trailing wheel 42 positioned at the rear of front-wheel 41 is not by caster support in the way of turning to freely.At this In embodiment, each trailing wheel 42 is in the way of it can rotate freely but can not turn to freely by the drive shaft of driving source 5 described later 51a, 52a (referring to Fig. 5) are supported.

Tilting bar 11c is also known as rear and links frame.Tilting bar 11c be operator with pin assisted control perambulator 1 when made Part.In addition, the tilting bar 11c of present embodiment constitutes a part for the skeleton of base frame 11, so as to improve base frame 11 rigidity.As shown in Fig. 2 as the element for constituting tilting bar 11c, being connected with side base frame 11a, 11b of left and right rear end Bending section 11d, 11e of left and right, are linked between bending section 11d, 11e of left and right by pars intermedia 11f.

Bending section 11d, 11e constitute connection along the longitudinal direction d1 and side base frame 11a, 11b for setting and in left-right direction d2 and If pars intermedia 11f part.Each bending section 11d, 11e shown in Fig. 2 be more close to the rear of d1 along the longitudinal direction closer to Left and right directions d2 central mode is bent.

Pars intermedia 11f constitutes part in tilting bar 11c, that pin is placed for operator.Pars intermedia 11f shown in Fig. 2 exists Than the more rear of trailing wheel 42 position in left-right direction d2 linearly to extend.

Bending section 11d, the 11e and pars intermedia 11f for constituting tilting bar 11c left and right are one of the forming.Further, Tilting bar 11c and side base frame 11a, 11b of left and right are also one of the forming, so as to constitute base frame 11.The situation is for maintaining base frame 11 intensity is simultaneously cut down and makes very big contribution in terms of number of components.Certainly, tilting bar 11c can also link the pipe being formed separately Part and constitute, its concrete mode is not specially limited.

Upper box 12 is provided with upper lateral part frame 12a, 12b of the left and right configured separated by a distance on left and right directions d2. Between upper lateral part frame 12a, 12b of left and right, middle boxes 12c is configured with.In the present embodiment, in the upper lateral part frame 12a in left side The first seat part 8a is configured between middle boxes 12c, is configured between the upper lateral part frame 12b and middle boxes 12c on right side Second seat part 8b.

Upper lateral part frame 12a, 12b and middle boxes 12c of left and right rear end are linked by rear upper box 12d.At rear Upper box 12d is provided with handle 20.Handle 20 is to supply the manual part of operator.For handle 20, with reference to Fig. 8 to Figure 15 Illustrate below.

It should illustrate, in the example of diagram, upper lateral part frame 12a, 12b and rear upper box 12d of left and right are that bending is single Pipe fitting and shape, so as to form as one.But, upper lateral part frame 12a, 12b and rear upper box 12d of left and right can also make Formed for independent part.

Upper lateral part frame 12a, 12b of left and right front end are linked by horizontal connecting rod 12e and upper side connecting rod frame 13a.Its In, d2 is formed as linear to horizontal connecting rod 12e in left-right direction, and middle boxes 12c is connected with horizontal connecting rod 12e center section Forward portion.

Upper side connecting rod frame 13a plays a part of connecting rod, with what is protruded towards the region than horizontal connecting rod 12e more fronts The shape of bending.Also, being set up in upper side connecting rod frame 13a forward portion with side base frame 11a, 11b of left and right front end has Base side connecting rod frame 13b.Base side connecting rod frame 13b front end is fixedly connected on upper side connecting rod frame 13a, a base side connecting rod frame 13b left side Right rear end is connected to side base frame 11a, 11b of left and right via horizontal link connecting rod 13c in the way of it can rotate.Horizontal link connecting rod D2 is formed as linear to 13c in left-right direction, and is connected in the way of it can rotate before side base frame 11a, 11b of left and right End.It is made up of upper side connecting rod frame 13a, base side connecting rod frame 13b and horizontal link connecting rod 13c and plays the front connecting rod that connecting rod is acted on Part 13.

Should illustrate, the intermediate connecting rod part 14 of left and right be erected at upper lateral part frame 12a, 12b of left and right center section and Side base frame 11a, 11b of left and right rear portion.Each intermediate connecting rod part 14 plays a part of connecting rod, relative to upper lateral part frame 12a, 12b and side base frame 11a, 11b can be rotated.

Perambulator 1 with above mount structure can be folded into the folding shown in Fig. 3 from the deployed condition shown in Fig. 1 and Fig. 2 Overlapping state.Fig. 3 is the figure that folded state is in from the perambulator 1 shown in shown in side, Fig. 2.

First, upper lateral part frame 12a, 12b and upper side connecting rod frame 13a locking is released, handle is put down downwards using deadweight Hand 20.By the action, upper side connecting rod frame 13a, base side connecting rod frame 13b and intermediate connecting rod part 14 are counterclockwise into Fig. 2 Direction is rotated so that upper box 12 is gradually folded until overlapping with base frame 11.

The result of action folding as above is, as shown in figure 3, base frame 11 and upper box 12 when from the side of perambulator 1 It is close and almost parallel.In the condition shown in figure 3, handle 20 is accommodated in by a pair of side base frame 11a, 11b and tilting bar 11c bags (Fig. 2 is referred in the space S enclosed).That is, by jackknife action, handle 20 is inserted into by a pair of side base frames 11a, 11b In the space S surrounded with tilting bar 11c.

It should illustrate, perambulator 1 is reverted into deployed condition shown in Fig. 2 from the folded state shown in Fig. 3, as long as according to The order operation opposite with above-mentioned folding operation.

It should be noted that in the perambulator 1 of present embodiment, in order to mitigate the burden of operator, being connected in wheel 4 There is driving source 5.But, as illustrated by background section, existing perambulator is configured to so-called from travelling Perambulator, so as to be difficult to the intended operation perambulator by operator.Therefore, the perambulator 1 of present embodiment is configured to root The pushchair of the process auxiliary drive formula of driving force is provided according to the mobility operation of operator to wheel 4.

Fig. 4 is the block diagram of the structure for the driving for schematically showing auxiliary wheel 4.As shown in figure 4, in multiple wheels 4 Several wheels are connected with driving element 51,52.Driving element 51,52 is the composed component of driving moment 4, in other words, is to car Wheel 4 provides the composed component of driving force.In the present embodiment, provided with two driving elements, i.e. the first driving element 51 and Two driving elements 52, the trailing wheel 42 that the first driving element 51 is used on the left of driving, the second driving element 52 is used on the right side of driving Trailing wheel 42.

Figure 5 illustrates an example of the structure of driving element 51,52.As shown in figure 5, driving element 51 is by connecting In the drive shaft 51a of the trailing wheel 42 of corresponding side and for driving drive shaft 51a dc motor 51b to constitute, drive The drive shaft 52a of the trailing wheel 42 of dynamic element 52 side corresponding by being connected to and the direct current for driving drive shaft 52a Motivation 52b is constituted.One end of drive shaft 51a, 52a is connected with the trailing wheel 42 of each self-corresponding side, and supports the trailing wheel 42 to make It can freely be rotated centered on rotation axis Ar2 but can not turned to freely.The other end of drive shaft 51a, 52a via Power transmission element (such as gear) (not shown) and dc motor 51b, 52b main shaft link.It should illustrate, drive shaft 51a, 52a can be constituted with dc motor 51b, 52b integrated spindle axis, can also be constituted as independent part.

Dc motor 51b, 52b configuration are being set up in a pair of side base frames 11a, 11b containing case 70, in the containing case Bar 11c is inclined by 70 to be supported.Dc motor 51b, 52b annexation are illustrated with circuit in Fig. 6.As shown in fig. 6, Dc motor 51b, 52b of two driving elements 51,52 are connected in series in the power supply 75 as battery.Pass through two direct currents Motivation 51b, 52b is connected in series, and helps, according to driving force is adjusted from the load of ground plane, to carry out after on this point Description.

Fig. 4 is back to, each driving element 51,52 is connected to the control device 7 for being housed in containing case 70, and is filled by the control Put 7 controls.The control device 7 is also connected with detecting element 6, and the information of Autonomous test element in future 6 is received as input information Take.Also, control device 7 controls each driving element 51,52 based on the information from detecting element 6, adjusted and driven from each with this Dynamic element 51,52 provides the driving force to wheel 4.Such control device 7 can for example possess central processing unit (CPU) With the microcontroller of register (REGISTER), or programmable controller (PLC).

Control device 7 is electrically connected with power supply 75.Power supply 75 is the portion for supplying electric current to control device 7 and driving source 5 Part.Typically, power supply 75 can charge, further, it is possible to be charged in the state of baby's vehicle main body 2 is departed from.

Expand in Fig. 7 and power supply 75 is shown.As shown in fig. 7, power supply 75 is pluggable to be installed on battery tray 76 freely.Battery tray 76 are installed on containing case 70, and are supported by base frame 11 via containing case 70 and (referred to Fig. 5).Battery tray 76, which has, houses power supply 75 Receiving space 76a, power supply 75 can enter (access) receiving space 76a by d3 along the vertical direction.

In the bottom of battery tray 76 provided with battery tray terminal 76e, battery tray terminal 76e via wiring 77 and control device 7 Connected with driving source 5.In the state of power supply 75 is contained in battery tray 76, battery tray terminal 76e and the electricity for being arranged on power supply 75 Pond terminal 75e is electrically connected.Therefore, in the state of power supply 75 is contained in battery tray 76, the electric current from power supply 75 is via battery Seat terminal 76e is transported to control device 7 and driving source 5.

Detecting element 6 is for detecting input to the element of baby's vehicle main body 2, related to mobility operation information.Inspection As long as the information related to mobility operation that survey element 6 is detected is inputted to the information of baby's vehicle main body 2 by operator, It is not specially limited.Can be the hand with coming from operating handle 20 as an example of the information related to mobility operation The related information of heavy burden, or rotation velocity correlation, being related to wheel 4 when operating the perambulator 1 to travel with operator Several information.

Fig. 2 is returned to, the detecting element 6 of present embodiment is arranged on handle 20, and can detect on being applied to the handle The information of 20 heavy burden, in other words, detecting element 6, which can be detected, specifically to be believed the heavy burden for being applied to handle 20 Breath.Below, the structure first to handle 20 is illustrated, and the detecting element 6 for being arranged at handle 20 is illustrated afterwards.

Expand in Fig. 8 and show handle 20.As shown in figure 8, being configured with the operating portion that hand is placed for operator in handle 20 Part 21, handle body 22 links functional unit 21 with baby's vehicle main body 2.Handle body 22 is in the linking part c1 with upper box 12 It is anchored on the upper box 12.

Particularly as the element for constituting handle body 22, there is the cylinder (column) extended from rear upper box 12d 22a, is configured at side lever 22b, 22c of cylinder 22a both sides.Functional unit 21 (for example, lever (grip)) is configured in left and right Interval is arranged on the d2 of direction two shank parts 21a, 21b, the shank part 21a in left side be erected at left side side lever 22b and Between cylinder 22a, the shank part 21b on right side is erected between the side lever 22c on right side and cylinder 22a.

Fig. 9 expands the detecting element 6 for showing and being arranged at cylinder 22a, and Figure 10 shows the circuit diagram of detecting element 6.Such as Shown in Fig. 9 and Figure 10, the inside in cylinder 22a is pasted onto as multiple deformeters (strain gauge) 61 of detecting element 6 Square bar 22d.Multiple deformeters 61 constitute bridgt circuit to measure the deformation of handle body 22.In the example shown in Fig. 9, in side The face of the inside square bar 22d of shape upside is configured with two deformeters 61, and internally the face of square bar 22d downside is configured with two Deformeter 61, the structure of this four deformeters 61 is identical.Should illustrate, it is illustrated that inside square bar 22d be hollow part, but It can be solid part.

The deformation detected according to deformeter 61 is shown in graphical form in Figure 11 to determine to be carried by driving element 51,52 One example of the control of the driving force of confession.In Figure 11 chart, transverse axis represents the deformation that deformeter 61 is detected, and will paste Situation that internally deformeter 61 in the face of square bar 22d upside extends or be pasted onto internal square bar 22d downside face The situation that deformeter 61 shortens is set on the occasion of will be pasted onto the situation that the deformeter 61 in the face of internal square bar 22d upside shortens Or be pasted onto internal square bar 22d downside face deformeter 61 extend situation be set to negative value.The longitudinal axis represents driving moment 4 Driving force, wheel 4 being made to march forward, driving force that direction rotates is set on the occasion of the drive that wheel 4 will be made to rotate in the reverse direction Power is set to negative value.

As shown in figure 11, the size of the deformation detected when deformeter 61 be less than lower limit α 1 when, control device 7 with not to The mode that wheel 4 provides the driving force of driving element 51,52 is controlled.Thus, even if applying interference or non-pre- to perambulator 1 The operation of phase, can also prevent perambulator 1 not by the phenomenon for being intended to movement.

When the size for the deformation that deformeter 61 is detected is more than lower limit α 1, control device 7 with deformeter 61 to detect To size the mode of driving force from driving element 51,52 to wheel 4 that proportionally provide of deformation be controlled.Figure 11's In chart, in the case where the deformeter 61 as object extends there is provided make wheel 4 march forward driving force that direction rotates, There is provided the driving force for making wheel 4 rotate in the reverse direction in the case that deformeter 61 as object shortens.

On the other hand, when putting on the size of deformation of handle 20 more than higher limit α 2, control device 7 is first that will drive The driving force of part 51,52 is supplied to the mode of wheel 4 to be controlled as upper limit driving force F.

Next, the effect to the present embodiment with above structure is illustrated.

Especially, recognize from Fig. 2, four deformeters 61 for constituting detecting element 6 are located at than behaviour on above-below direction d3 Make the position of the more top of part 21, functional unit 21 is located at than linking part c1 more rears and position further below.By such Set, deformeter 61 is acted in the way of shown in following Figure 12 to Figure 15.Figure 12 to Figure 15 is to be used to illustrate to handle 20 The figure of the effect of deformeter 61 when being operated.It should illustrate, in the following description, internal square bar 22d is grown with it When the parallel plane area of edge direction the is divided into two parts, part as upside is set to upper region A1, and the part as downside is set For lower region A2 (referring to Fig. 9).

As shown in figure 12, hold what functional unit 21 promoted the front on perambulator 1 in front-rear direction d1 in operator In the case of, internal square bar 22d upper region A1 elongations, lower region A2 shortens.The letter that upper region A1 elongations and lower region A2 shorten Breath is measured by four deformeters 61.The information measured by deformeter 61 is transferred into control part device 7.Receive the control of information Device 7 identifies that functional unit 21 is promoted or pressed downwards forwards, and to be connected in series two driving elements 51, 52 dc motor 51b, 52b circuit provide the electric current corresponding with the value measured by deformeter 61.Thus, direct current drive Machine 51b, 52b rotate, and being connected to dc motor 51b, 52b drive shaft 51a, 52a rotates the direction of marching forward of trailing wheel 42.By This, is aided in the rotation of trailing wheel 42 by drive shaft 51a, 52a, alleviates bearing when operator pushes away perambulator 1 forwards Load.

In the case where tread has difference of height, operator can vertically d3 lower section push part 21, with Float front-wheel 41.As shown in figure 13, in the case of operator downwards push part 21, the situation phase with Figure 12 Together, internal square bar 22d upper region A1 elongations, lower region A2 shortens.The information quilt that upper region A1 elongations and lower region A2 shorten Four deformeters 61 measure and are transferred into control device 7.Receive information control device 7 identify functional unit 21 by Front promotes or pressed downwards, and is provided and deformeter to the circuit for being connected in series two dc motors 51b, 52b The corresponding electric current of value detected by 61.Thus, dc motor 51b, 52b rotates, and is connected with dc motor 51b, 52b Drive shaft 51a, 52a rotate the direction of marching forward of trailing wheel 42.That is, the situation about being pressed downwards of functional unit 21 with The situation that functional unit 21 is promoted forwards is identical, rotates the direction of marching forward of trailing wheel 42.As a result, even in being crossed During the action of difference of height, it can also receive the auxiliary of the driving force of driving source 5, and baby can be promoted without undue burden Youngster's car 1.

On the other hand, in the case where gug promotes perambulator 1, as shown in figure 14, operator holds functional unit 21 Perambulator 1 is drawn at d1 rear in front-rear direction.At this moment, the situation with Figure 12 and Figure 13 is on the contrary, internal square bar 22d upper region A1 Shorten, lower region A2 elongations.Upper region A1 shortens and the information of lower region A2 elongations is measured by four deformeters 61, and is transmitted To control device 7.The control device 7 for receiving information identifies that functional unit 21 is pulled to rear, and to being connected in series two Individual dc motor 51b, 52b circuit are with measured by the direction offer opposite with Figure 12 and Figure 13 situation and deformeter 61 The corresponding electric current of value.Thus, dc motor 51b, 52b rotates, the drive shaft being connected with dc motor 51b, 52b 51a, 52a make trailing wheel 42 rotate in the reverse direction.Thus, the rotation of trailing wheel 42 is aided in by drive shaft 51a, 52a, subtracted Light operator rearward draws burden during perambulator 1.

Next, when turning to perambulator 1, as shown in figure 15, by making to push away two shank parts 21a, 21b forwards Power produces difference, can turn to perambulator 1.In the example of fig. 15, the power of the shank part 21b by making to put on right side is big In the power for the shank part 21a for putting on left side, perambulator 1 can be made to turn to the left.Even if applying to two shank parts 21a, 21b Different power, also identical with Figure 12 situation, internal square bar 22d upper region A1 elongations, lower region A2 shortens.Upper region A1 stretches The information that long and lower region A2 shortens is measured by four deformeters 61, and is transferred into control device 7.Deformeter 61 is received to examine The control device 7 of the information measured identifies that functional unit 21 is promoted or pressed downwards forwards, and connects to series connection The circuit for having met two dc motors 51b, 52b provides the electric current corresponding with the value measured by deformeter 61.In Fig. 6 institutes In the series circuit shown, when two dc motors 51b, 52b are identical composition, two dc motors 51b, 52b are flowed through Electric current size it is also equal, it is taken as that the driving force that two dc motors 51b, 52b are provided to wheel 4 is also equal.

But, when making perambulator 1 turn to the left, compared with the wheel 4 on the right side as foreign steamer, the left side as lubrication groove Wheel 4 by the bigger resistance from ground plane so that be connected to the dc motor of the wheel 4 in the left side as lubrication groove 51b is difficult to rotate.It is straight at this when being connected to the dc motor 51b of wheel 4 in the left side as lubrication groove rotation number reduction The counter electromotive force reduction that motor 51b is produced is flowed, so as to easily flow through more electric currents in series circuit.As a result, in connection The relative change of electric current flowed through in the dc motor 52b of the wheel 4 on the right side as foreign steamer is more, can be to the right side as foreign steamer The wheel 4 of side provides bigger driving force.Thus, the wheel 4 for easily becoming the right side of foreign steamer rotates, enabling successfully Carry out go to action.

As described above, the perambulator 1 of present embodiment possesses：Baby's vehicle main body 2；Multiple wheels 4, by baby's vehicle main body 2 Support；Driving source 5, is supported by baby's vehicle main body 2, and at least one wheel into multiple wheels 4 provides driving force；Detection member Part 6, the information related to mobility operation of detection input to baby's vehicle main body 2；And control device 7, based on the institute of detecting element 6 The information of detection controls driving source 5, with this is supplied to the driving force of wheel 4 to be adjusted driving source 5.According to such Mode, can coordinate the mobility operation of perambulator 1 to be supplied to the driving force of wheel 4 to be adjusted driving source 5, therefore, it is possible to by According to intended operation perambulator 1.

In addition, according to present embodiment, among multiple wheels 4, the wheel for providing driving force by driving source 5 is trailing wheel 42, the front-wheel 41 in multiple wheels 4 is supported via castor 3 by base frame 11.By supporting front-wheel 41 by base frame 11 via castor 3, The steering operation of perambulator 1 can successfully be carried out.Furthermore, it is contemplated that the handle 20 of operator's operation is located behind and/or multiplied The center of gravity of the infant of perambulator 1 is sat, trailing wheel 42 easily bears a heavy burden, so as to stably be grounded on ground plane.By to stably The trailing wheel 42 of ground ground connection provides the driving force from driving source 5, can stably realize the driving auxiliary carried out by driving source 5.

In addition, according to present embodiment, driving source 5 has the first driving element 51 and the second driving element 52, wherein, the At least one wheel into multiple wheels 4 of one driving element 51 provides driving force, the second driving element 52 to multiple wheels 4 In, the wheel 4 that the wheel 4 that provides driving force by the first driving element 51 is different driving force is provided, the second driving element 52 with First driving element 51 is independently arranged., can by providing different driving forces to different wheels 4 according to such mode Help to realize the appropriate distribution for the driving force that the transport condition of correspondence perambulator 1 is carried out.

In addition, according to present embodiment, the wheel 4 of driving force is provided and by the second driving element by the first driving element 51 52 provide position difference of the wheel 4 of driving force on left and right directions d2, the first driving element 51 and the second driving element 52 The dc motor of dc motor, the dc motor 51b of the first driving element 51 and the second driving element 52 is included respectively 52b is relative to being to be connected in series as the power supply 75 of battery.In the case where turning to perambulator 1, with the wheel 4 as foreign steamer Compare, the wheel 4 as lubrication groove is by the bigger resistance from ground plane.Therefore, by the straight of two driving elements 51,52 In the case that stream motor 51b, 52b are connected in series, the dc motor 51b for being connected to the wheel 4 as lubrication groove is difficult to rotate. When being connected to the reduction of the dc motor 51b rotation number of the wheel 4 as lubrication groove, in the anti-of dc motor 51b generations Electromotive force is reduced, and more electric currents are easily flowed through in series circuit.As a result, being connected to the direct current of the wheel 4 as foreign steamer The relative change of electric current flowed through in motivation 52b is more, can provide bigger driving force for the wheel 4 as foreign steamer.According to above feelings Condition, when dc motor 51b, 52b of two driving elements 51,52 are connected in series, easily becomes in go to action The wheel 4 of foreign steamer rotates, and can successfully carry out go to action.

In addition, according to present embodiment, baby's vehicle main body 2 has the frame body 10 for supporting multiple wheels 4 and is connected to frame The handle 20 of body 10, detecting element 6 is arranged at handle 20, and the detectable heavy burden with putting on the handle 20 of detecting element 6 has The information of pass.As the information relevant with mobility operation of input to baby's vehicle main body 2, it may be selected with putting on the negative of handle 20 The relevant information of weight, thus, it is possible to the intention on mobility operation according to operator, driving is provided from driving source 5 to wheel 4 Power.

In addition, according to present embodiment, handle 20, which has, to be placed the functional unit 21 of hand for operator and links operating portion The handle body 22 of part 21 and baby's vehicle main body 2, when detecting element 6 detect functional unit 21 be pushed to front information or During by by information downwards, control device 7 makes driving source 5 provide the driving force for making wheel 4 advance, when detecting element 6 is detected When being pulled to the information at rear to functional unit 21, control device 7 makes driving source 5 provide the driving force for making wheel 4 draw back.It is logical Cross this mode, can operation of the compounding practice person to functional unit 21 adjust direction during 5 driving moment 4 of driving source.It is special Not, even in difference of height in order to cross ground plane etc., push part 21 is so that the situation that front-wheel 41 floats downwards Under, driving source 5 also can driving moment 4 it is advanced.Therefore, even in cross in the action process of difference of height, also can Enough auxiliary for receiving the driving force from driving source 5, while perambulator 1 can be promoted without undue burden.

In addition, according to present embodiment, detecting element 6 includes the multiple deformeters for being installed on the handle body 22 of handle 20 61, at least one deformeter 61, its functional unit 21 be pushed to front or by by downwards when elongation and operation Part 21 shortens when being pulled to rear, or, its functional unit 21 be pushed to front or by by downwards when shorten and behaviour Make to extend when part 21 is pulled to rear.According to this mode, the function of detecting element 6 can be realized by deformeter 61, because This can be avoided the structure of complexity, and the detection that the information of functional unit 21 is stablized can be operated to operator.From further From the viewpoint of ground is detected while the information stability of functional unit 21 is operated to operator, preferred operations part 21 is located at than handle Hand main body 22 and the linking part c1 more rears of frame main body 10 and position further below or more front and the position of more top.

Especially, according to present embodiment, functional unit 21 is located at than junction portion c1 more rears and position further below, Deformeter 61 is installed on position in handle body 22, that it is between the junction of functional unit 21 and linking part c1.At this In the case of, the part for having pasted deformeter 61 in handle body 22 and operator put on the heavy burden linkage of functional unit 21 and Delicately stretch.Therefore, the information of functional unit 21 can be operated to carry out high-precision detection to operator by deformeter 61.

In addition, present embodiment provides a kind of perambulator 1, possess：Multiple wheels 4；Seat part 8a, 8b；Perambulator Main body 2, the base frame 11 with the multiple wheels 4 of support, and be linked to base frame 11 and support seat part 8a, 8b upper box 12； Driving source 5, is supported by baby's vehicle main body 2, and at least one wheel into multiple wheels 4 provides driving force；Power supply 75, to drive The dynamic supply electric current of source 5 can simultaneously be charged；And battery tray 76, supported by base frame 11, and power supply 75 can be made to plug freely It is mounted, wherein, the electric current from power supply 75 is transported to driving source 5 via the battery tray terminal 76e for being arranged on battery tray 76. In this way, as long as removing power supply 75 from battery tray 76 and charging, power supply 75 is inserted into battery tray 76 again afterwards, it becomes possible to Electric current is supplied from power supply 75 to driving source 5.That is, the perambulator 1 of present embodiment can easily carry out power supply 75 Charging and installation.

Then, due to utilizing for a long time, also it is contemplated that the situation that the electricity that power supply fills runs out.Filled when power supply 75 When electricity runs out, when making to promote the wheel 4 of perambulator 1 rotate, due to driving element 51,52 dc motor 51b, 52b is acted on as load, therefore, compared with not possessing the perambulator of dc motor, it is not easy to promote perambulator 1.Especially , it is necessary to make front-wheel 41 float and travel perambulator 1 with trailing wheel 42 when ground, difference of height on tread is crossed.In this feelings Under condition, as shown in figure 16, it is very easily to float front-wheel 41 using tilting bar 11c.Figure 16 is to show to operate tilting bar with pin The overall perspective view of 11c state.

In the case of shown in Figure 16, operator presses downwards the functional unit 21 of handle 20 with hand, while being stepped on pin Live in tilting bar 11c.By the operation, a pair of mutually opposing in the horizontal direction power can be loaded at two on perambulator 1. The even power that a pair of mutually opposing power are constituted, can produce makes the integrally rotated torque of perambulator 1.As a result, can be with trailing wheel On the basis of 42, make perambulator 1 overall to the back sweep relative to vertical direction, front-wheel 41 is easily floated.

After front-wheel 41 is floated, operator is next with the functional unit 21 of hand push handle 20 forwards, while using pin Tilting bar 11c is pushed away forwards.Thus, additionally it is possible to while using the strength of pin, making perambulator 1 relatively easily promote forwards.

Especially, handle 20 is held in operator, while when promoting perambulator 1, being slightly located at front than pin in tilting bar 11c In the case of, easily push away tilting bar 11c forwards with pin.In consideration of it, under the deployed condition of perambulator 1, tilting bar Position of the 11c rear end 11g configurations in the more front of the rear end 20a than handle 20.

Further, tilting bar 11c configuration is illustrated with reference to Figure 17.Figure 17 is to expand the rear for showing base frame 11 Partial side view.

As shown in figure 17, tilting bar 11c than trailing wheel 42 rotation axis Ar2, or even than trailing wheel 42 rear end 42a more backward Side is prominent.That is, tilting bar 11c at least a portion is located at the position at the rear end 42a more rears than trailing wheel 42.In the feelings Under condition, in the state of operator holds handle 20 and promotes perambulator 1, contribute to operator without with inadequate posture by pin It is positioned over tilting bar 11c.But, tilting bar 11c can also more rearward be protruded unlike the rotation axis Ar2 of trailing wheel 42.

In addition, in fig. 17, tilting bar 11c is located at the rotation axis Ar2 and trailing wheel in trailing wheel 42 on above-below direction d3 The corresponding position of height between 42 upper end 42b.That is, tilting bar 11c configurations are on the rotation axis Ar2 of trailing wheel 42 Position below the upper end 42b of side and trailing wheel 42.By making tilting bar 11c be located at the rotation axis Ar2 more top than trailing wheel 42 Position, perambulator 1 traveling during, be difficult to touch tilting bar 11c using height official post tiptoe.On the other hand, pass through Make the positions of tilting bar 11c positioned at the upper end 42b than trailing wheel 42 further below, during the traveling of perambulator 1, utilize height official post Shank is difficult to touch tilting bar 11c.

In this way, present embodiment provides a kind of perambulator 1, possess：Multiple wheels 4；Seat part 8a, 8b；Perambulator Main body 2, the base frame 11 with the multiple wheels 4 of support, and link and support seat part 8a, 8b upper box 12 with base frame 11； And driving source 5, supported by baby's vehicle main body 2, and at least one wheel into multiple wheels 4 provides driving force, wherein, Base frame 11 has the tilting bar 11c more prominent than the rotation axis Ar2 of the wheel 42 positioned at rearmost.Pass through this side Formula, in the state of driving source 5 stopped, also can operate tilting bar 11c easily to float front-wheel 41 by using pin Rise, so as to easily pass over the difference of height on tread.As a result, can improve with perambulator during 5 driving moment 4 of driving source 1 operability.

In addition, according to present embodiment, base frame 11 also has a pair of the side bases configured separated by a distance on left and right directions d2 A pair of side base frames 11a, 11b respective rear end are interconnected by frame 11a, 11b, tilting bar 11c.In this case, tilting bar 11c Also serve as the skeleton structure extended on left and right directions d2 in base frame 11 and work, therefore help to effectively improve base frame 11 rigidity.

In addition, according to present embodiment, upper box 12 is connected to base frame 11 via linkage component 13,14, and by relative Rotate, can be folded relative to the base frame 11 in linkage component 13,14, be in and fold relative to base frame 11 in upper box 12 In the state of, the handle 20 for being connected to baby's vehicle main body 2 of upper box 12 is inserted in by a pair of side base frame 11a, 11b and tilting bar In the space S that 11c is surrounded.In this way, in the state of perambulator 1 is folded, handle 20 is housed in by an offside In the space S that base frame 11a, 11b and tilting bar 11c are surrounded, therefore, it is possible to pass through a pair of side base frame 11a, 11b and tilting bar 11c Protect handle 20.Especially, when being configured with detecting element 6 in handle 20, by protecting handle 20, detecting element can be suppressed 6 by physical impact, so as to avoid detecting element 6 from being damaged.

Next, being illustrated to tilting bar 11c and other composed components configuration relation.As shown in figure 5, two drives Dynamic element 51,52, control device 7 and power supply 75 configure position on fore-and-aft direction d1, than tilting bar 11c more fronts. Specifically, two driving elements 51,52, control device 7 and power supply 75 are configured in by a pair of side base frame 11a, 11b and inclined In the space S that brace 11c is surrounded.In this case, by a pair of side base frame 11a, 11b and tilting bar 11c, two can be protected Driving element 51,52, control device 7 and power supply 75.

Here, with two driving elements 51,52, control device 7 and representated by power supply 75, it is for driving moment 4 Part has constant weight, easily upsets the balance of the weight of perambulator 1.Therefore, in the perambulator 1 of present embodiment, in order to The balance of the weight of perambulator 1 is kept, measure as described below has been carried out.Base frame 11 is schematically shown with rearview in Figure 18 Rear portion.

As shown in figure 18, have constant weight two driving elements 51,52, control device 7 and power supply 75 be configured in Between the trailing wheel 42 of left and right.By the configuration, these parts, i.e. driving element 51,52, the height of control device 7 and power supply 75 Spend the height of the trailing wheel 42 equivalent to left and right.Therefore, it is possible to will have constant weight these parts 51,52,7,75 configure in phase To relatively low position, so that the steadily of centre of gravity of perambulator 1.Further, by the configuration, these parts 51,52,7,75 exist Position of the position equivalent to trailing wheel 42 on fore-and-aft direction d1 on fore-and-aft direction d1.In this case, have constant weight this The deadweight of a little parts 51,52,7,75 is mainly born by the trailing wheel 42 of left and right.Its result is that can make the stabilization of trailing wheel 42 of left and right Ground is pressed on tread, so as in the case where driving trailing wheel 42 by driving source 5, help to be stably driven with trailing wheel 42.

Especially, the first driving element 51, the second driving element 52 and control device 7 are configured in the upper end than trailing wheel 42 Position lower 42b.In this case, the weight of perambulator 1 can be made by the configuration of these parts 51,52,7 in lower position The heart is further stablized.

Further, control device 7 is configured between the first driving element 51 and the second driving element 52.In the situation Under, two driving elements 51,52 and control device 7 can be more evenly configured on left and right directions d2, is favorably improved The balance of the weight of perambulator 1.

In this way, present embodiment provides a kind of perambulator 1, possess：Multiple wheels 4, include front-wheel 41 and trailing wheel 42； Seat part 8a, 8b；Baby's vehicle main body 2, links with the base frame 11 for supporting multiple wheels 4 and with base frame 11 and supports seat Part 8a, 8b upper box 12；And driving source 5, supported by baby's vehicle main body 2, and at least one into multiple wheels 4 Wheel provides driving force, wherein, driving source 5 is configured between the trailing wheel 42 of left and right.In this way, the height of driving source 5 Equivalent to the height of the trailing wheel 42 of left and right, therefore, it is possible to which the driving source 5 for having constant weight is configured relative to relatively low position. Its result is that can make the steadily of centre of gravity of perambulator 1, improve by 5 driving moment 4 of driving source when perambulator 1 operability.Remove Beyond this, position of position of the driving source 5 on fore-and-aft direction d1 equivalent to trailing wheel 42 on fore-and-aft direction d1, therefore have certain The deadweight of the driving source 5 of weight is mainly born by the trailing wheel 42 of left and right.Its result is that left and right can be stably pushed away on tread Trailing wheel 42, by driving source 5 drive trailing wheel 42 in the case of, help to be stably driven with trailing wheel 42.

In addition, according to present embodiment, not only driving source 5, control device 7 and power supply 75 are also disposed in the trailing wheel of left and right Between 42.In this case, the control device 7 and power supply 75 that have constant weight can be also disposed in relatively low position Put, therefore the center of gravity of perambulator 1 is further stablized.In addition, by concentrating and matching somebody with somebody driving source 5, control device 7 and power supply 75 Put between the trailing wheel 42 of left and right, the length for linking their distribution can be shortened, help to reduce cost.

In addition, according to present embodiment, base frame 11 has a pair of the side base frames configured separated by a distance on left and right directions d2 11a, 11b, and the tilting bar 11c for linking frame as rear that a pair of side base frames 11a, 11b respective rear end are interconnected, drive Dynamic source 5 and control device 7 are housed in and are erected in a pair of side base frames 11a, 11b containing case 70.In this case, it will can drive Dynamic source 5 and the centralized configuration of control device 7 can efficiently carry out assembly working in containing case 70.

It should illustrate, various changes can be carried out to above-mentioned embodiment.Hereinafter, a variation is illustrated.

For example, in the above-described embodiment, showing two seat parts 8a, 8b of the spread configuration in the way of left and right Example, but seat part 8a, 8b quantity are not limited to the example.For example, single seat part can be set, it can set More than two seat parts, can also be arranged more than two seat parts in front and rear mode.

In addition, in the above-described embodiment, showing that dc motor 51b, 52b of two driving elements 51,52 are relative The example being connected in series in the power supply 75 as power supply, but be not limited on dc motor 51b, 52b circuit design Above-mentioned example.Dc motor 51b, 52b of two driving elements 51,52 can also be connected in parallel relative to power supply 75.

In addition, in the above-described embodiment, showing the example that detecting element 6 is made up of deformeter 61, but detecting element 6 The form of the composition be not limited to above-mentioned example.As long as detecting element 6 can detect that input to baby's vehicle main body 2 is grasped with traveling Make related information, it is possible to any to select, as other examples, can also be passed as the moment of torsion for being installed on handle body 22 Sensor, pressure sensor or magneto strictive sensor etc. and constitute.For example, as pressure sensor or will put on The heavy burden of handle 20 is caught as the change of the pressure of action fluid, then measures the pressure via barrier film with pressure element Change, afterwards with the type of electric signal output.

In addition, in the above-described embodiment, showing that the cylinder 22a being made up of single pillar links rear upper box 12d and functional unit 21 example, but the cylinder 22a form of the composition is not limited to above-mentioned example.Cylinder 22a can also be by multiple Pillar is constituted, and links rear upper box 12d and functional unit 21.

In addition, in the above-described embodiment, showing that functional unit 21 is located at than linking part c1 more rears and further below The example of position, but the configuration of functional unit 21 is not limited to above-mentioned example.As long as at least one deformeter 61 is met in operation Part 21 be pushed to front or by by downwards when extend, and shorten when functional unit 21 is pulled to rear, or, in operation Part 21 be pushed to front or by by downwards when shorten, and the condition extended when functional unit 21 is pulled to rear is then grasped The configuration for making part 21 is arbitrary.For example, it is also possible to make functional unit 21 be located at than linking part c1 more front and more top Position, can make deformeter 61 be installed on handle body 22 in the position than the more rear of functional unit 21.

It should illustrate, several variations of above-mentioned embodiment are illustrated the above, but it is also possible to which application is multiple Variation it is appropriately combined.

Claims

1. a kind of perambulator, it is characterised in that possess：

Wheel, is present multiple；

Seat part；

Baby's vehicle main body, with the base frame for supporting multiple wheels and is linked to the base frame and supports the seat part Upper box；And

Driving source, is supported by baby's vehicle main body, and at least one wheel into multiple wheels provides driving force,

Wherein, the base frame has the tilting bar more prominent than the rotation axis of the wheel positioned at rearmost.

2. perambulator according to claim 1, it is characterised in that be also equipped with：

Detecting element, detection input to baby's vehicle main body, related to mobility operation information；And

Control device, the information detected based on the detecting element controls the driving source, and to adjust the driving source with this carry Supply the driving force of the wheel.

3. perambulator according to claim 2, it is characterised in that

Baby's vehicle main body also has the handle for being connected to the upper box,

The detecting element is arranged at the handle, and the information that heavy burden of the detection to putting on the handle is related.

4. perambulator according to claim 1, it is characterised in that

Wheel in multiple wheels, that driving force is provided by the driving source is trailing wheel,

Front-wheel in multiple wheels is supported via castor by the base frame.

5. perambulator according to claim 1, it is characterised in that

The driving source has the first driving element and the second driving element, wherein,

At least one wheel of first driving element into multiple wheels provides driving force,

Second driving element is into multiple wheels, different from providing the wheel of driving force by first driving element Wheel provides driving force, and is set independently of first driving element.

6. perambulator according to claim 5, it is characterised in that first driving element and second driving element Configure in the position than the tilting bar more front.

7. perambulator according to claim 1, it is characterised in that

The base frame has a pair of the side base frames configured separated by a distance in the lateral direction,

The respective rear end of the pair of side base frame is interconnected by the tilting bar.

8. perambulator according to claim 7, it is characterised in that

The upper box is connected to the base frame via linkage component, and by rotated relative to the linkage component and relative to The base frame can be folded,

In the state of the upper box is in relative to the base frame and folded, the baby car owner of the upper box is connected to The handle of body is inserted in the space of the pair of side base frame and tilting bar encirclement.