CN1377801A

CN1377801A - Baby carriage

Info

Publication number: CN1377801A
Application number: CN02119003A
Authority: CN
Inventors: 铃木义行
Original assignee: MIYAHI CO Ltd
Current assignee: MIYAHI CO Ltd
Priority date: 2001-03-23
Filing date: 2002-03-23
Publication date: 2002-11-06
Anticipated expiration: 2022-03-23
Also published as: CN100445147C; HK1050661A1; SG100785A1; TW544417B; KR20020075298A; MY137447A; JP2002284015A; JP5100930B2; KR100923261B1

Abstract

Lock members 47a, 47b slidable vertically are provided in side parts of caster holders fixed to lower parts of a front leg 12 and a rear leg 14, respectively. Recessed parts 45a, 45b with which the lock members are selectively engaged when a front wheel 11 or a rear wheel 13 faces the direction of straight advance are provided in a caster shaft. Lead wires 50a, 50b whose both end parts are connected with the lock members on a front leg side and a rear leg side, respectively, and which are inserted into the front leg and the rear leg are engaged with the recessed parts 45a, 45b provided in the caster shaft selectively corresponding to the lock members 47a, 47b on the front wheel side or the rear wheel side by connecting the lead wires inserted into the front leg and the rear leg with a lock change-over operation member 54 mounted slidably on the front leg.

Description

Perambulator

Technical field

The present invention relates to perambulator, particularly the hand bar at opposite, the back side perambulator that can switch.

Background technology

The perambulator that uses when taking the baby to outdoor stroll or shopping etc., fitness for purpose folds easily as required, places and carries, simultaneously, the user can handle depression bar dorsad the baby be pressed into back side shape, or the handle depression bar has multiple in the face of the baby is pressed into to the planar type of application practicality that waits.

But, for perambulator, generally to make front-wheel just practical around rotatable its walking operability of vertical rotation axis, as mentioned above, the user the hand depression bar dorsad the baby be pressed into back side shape or handle depression bar and be pressed into when planar in the face of the baby, the problem that exists is that the wheel of working direction rear side directionality when vertical rotation axis is rotatable is poor, can not walk smoothly.For this reason, if allow front-wheel and trailing wheel both all can rotate around vertical rotation axis, being difficult to make perambulator directly to advance to wait this is again problem.

Summary of the invention

The present invention is in view of these problems, and purpose is that the perambulator that provides is in back side shape and working direction front side wheel is rotated during to planar any one state around vertical rotation axis at the hand bar.

Perambulator of the present invention is characterised in that, disposes perambulator body, hand bar, castor holding element, caster axle and locking blocked operation mechanism, and the perambulator body has a pair of forward foot in a step of adorning front-wheel respectively and a pair of rear foot of adorning trailing wheel respectively; Hand bar perambulator body is relatively swung and can be placed the baby opposite and the baby back side; The castor holding element is arranged on each forward foot in a step and each rear foot, and is built-in with locking piece; Caster axle is arranged on each front-wheel and each trailing wheel, and has the engagement section, and locking piece slides in the castor holding element and engages this engagement section; Locking blocked operation mechanism makes locking piece and the action of the locking piece in the rear foot castor holding element in the forward foot in a step castor holding element; This locking blocked operation mechanism and the action of hand lever linkage.

The feature of perambulator of the present invention also is, when hand bar during at the baby back side, make locking blocked operation mechanism action, the locking piece in each front-wheel castor holding element is thrown off from the caster axle engagement section, and, the locking piece in each trailing wheel castor holding element is engaged with the caster axle engagement section; When hand bar during on the baby opposite, make locking blocked operation mechanism action, the locking piece in each front-wheel castor holding element is engaged with the caster axle engagement section, the interior locking piece of each trailing wheel castor holding element is thrown off from the caster axle engagement section.

The feature of perambulator of the present invention also is, locking blocked operation mechanism has galvanized wire, article one, galvanized wire (lead lead wire) is arranged on to dispose on caster wheel holding element and the side's rear foot in side's forward foot in a step and disposes between the caster wheel holding element, and connects the locking piece in these castor holding elements; Another galvanized wire is arranged on to dispose on caster wheel holding element and the opposing party's rear foot in the opposing party's forward foot in a step and disposes between the caster wheel holding element, and connects the locking piece in these castor holding elements.

The feature of perambulator of the present invention also is, galvanized wire by the front wheel side galvanized wire be connected to by attaching parts that rear wheel-side galvanized wire on this front wheel side galvanized wire forms.

The feature of perambulator of the present invention also is, the blocked operation parts are connected on the attaching parts.

The feature of perambulator of the present invention is that also the blocked operation parts are by tab, and the hand bar has against the teat of this blocked operation parts tab.

The feature of perambulator of the present invention is that also galvanized wire utilizes the galvanized wire spring to give elastic force to a side.

The feature of perambulator of the present invention is that also the locking piece in the castor holding element utilizes the locking piece spring to give elastic force to the engagement section often.

The feature of perambulator of the present invention is that also the caster axle engagement section is to be made of the recess that locking piece engages.

The feature of perambulator of the present invention is that also caster axle is provided with the stationkeeping pin of freely advancing and retreat, and is formed with the groove of fixing front-wheel or trailing wheel in the castor holding element, and this groove is engaged by the stationkeeping pin in the caster axle back that descends.

Brief description of drawings

Fig. 1 is the oblique drawing that expression perambulator of the present invention constitutes substantially;

Fig. 2 is above-mentioned perambulator lateral plan;

Fig. 3 is the amplification profile of pipe and rear foot connecting portion;

Fig. 4 is the part oblique drawing of bar engaging of expression hand and latch-release spare structure;

Fig. 5 is a hand bar wobbling action instruction diagram;

Fig. 6 is the perambulator lateral plan of opposite swing hand bar;

Fig. 7 A is a front-wheel castor holding element amplification profile;

Fig. 7 B is a trailing wheel castor holding element amplification profile;

Diagrammatic sketch when Fig. 8 A is expression locking blocked operation mechanism back side pressure condition;

Diagrammatic sketch when Fig. 8 B is expression locking blocked operation mechanism opposite pressure condition;

Fig. 9 A is the diagrammatic sketch of front-wheel lock-out state in the pressure condition of expression opposite;

Fig. 9 B is the diagrammatic sketch of trailing wheel locking open mode in the pressure condition of expression opposite;

Figure 10 is expression another embodiment of the present invention caster wheel holding element section-drawing;

Figure 11 is castor holding element action specification figure shown in Figure 10.

Form of implementation of the present invention

Below, with reference to accompanying drawing the invention process form is described.

Fig. 1 is the oblique drawing that expression perambulator of the present invention constitutes substantially; Fig. 2 is its lateral plan.Perambulator 10 dispose a pair of left and right sides forward foot in a step 12 with front-wheel 11, with a pair of left and right sides rear foot 14 of trailing wheel 13, substantially for the hand bar 15 of U word sigmoid, pair of right and left jib 16, respectively be connected with jib 16 1 end pivotings and be parallel to each other stretch about two bodys 17.

The other end head lamp brush guard pivot of above-mentioned each jib 16 is connecting the forward foot in a step 12, and horizontal the extension can freely be installed and removed and the guid arm 18 of flexible one-tenth arcuation between the top ends of left and right sides jib 16.In addition, the upper end that is connecting the rear foot 14 at left and right sides jib 16 head lamp brush guard pivots.The preceding lateral connector bar 20 that the forward foot in a step 12 usefulness in the left and right sides have stretcher 19 connects, and the left and right sides rear foot 14 usefulness back lateral connector bar 21 connects.On the pars intermedia of each forward foot in a step 12, pivotal joint has the front end of pipe link 22 respectively again, and the rear end of each pipe link 22 is pivotally connected to respectively on the rear leg support support part of fixing aforementioned pipe fitting 17 lower ends 23.In addition, left and right sides pipe link 22 is being connected by last lateral connector bar 24.And, constituting perambulator body 10a by wherein the forward foot in a step 12, the rear foot 14, jib 16, pipe fitting 17 and the

pipe link

20,21,22,24 that connects them, can freely swing facing to the hand bar 15 of this perambulator body 10a.

Shown in the special part of amplifying of Fig. 3, the lower end of the support 25 of L word shape is pivotally connected to the intermediate portion on the rear leg support support part 23 on the rear foot 14 head lamp brush guard pivots connect.The free end of support 25 is provided with recess step 25a, and this recess step 25a ends step 26a with the card of locking piece 26 and engages, and this locking piece 26 is locked in the rear foot 14 on the pipe fitting 17.Above-mentioned locking piece 26 is slidably mounted on the pipe fitting 17, and can utilize the remote handling device that is arranged on the hand bar to slide up and down operation along pipe fitting 17.In addition, on rear leg support support part 23, with 14 opposed on the rear foot on be formed with step 23a, this step 23a leans against the rear foot 14 upon deployment, keeps it to launch shape.

In addition, as shown in Figure 3, when the recess step 25a that is fastened on support 25 when locking piece 26 goes up, the rear foot 14 and pipe fitting 17 are locked, make the perambulator body be held in the deployed condition that to use shape by this support 25.On the other hand, utilization is arranged on the remote handling device on the hand bar, when locking piece 26 is pressed the long and short dash line rising, the locking of locking piece 26 is thrown off, the top swing shown in can long and short dash line of jib 16, the forward foot in a step 12 (not shown), the rear foot 14 can become portable two rugosities.

At this, as shown in Figure 1, on fixing respectively rear leg support support part 23, pipe fitting 17 bottoms, the aforementioned left and right sides,, but be the lower end that the center swing is pivotally connected to U word shape hand bar 15 with axle 27 in its outside.And, on the lateral surface of jib 16, fixedly installing

locking protrusion

28,29, this

locking protrusion

28,29 is laterally projecting in the leading section and the rearward end of jib 16.On the one hand, on hand bar 15, adorning can be along the fastener 30 of hand bar 15 slips, and these fastener 30 cards end on aforementioned locking protrusion 28 or 29 (referring to Fig. 4, Fig. 5).This fastener 30 is applied elastic force downwards by spring 34.

On the other hand, on fastener 30, as shown in Figure 5, locating with 17 opposed of pipe fittings, be provided with first recess 31 that L word shape card ends usefulness, this first recess 31 has and can stretch the opening portion 31a that can rearward open in the bottom again along above-below direction, and is provided with second recess 32 below this first recess 31, and this second recess 32 can reach the below again forwardly along the above-below direction stretching, extension and open.

In addition, when utilization is arranged on that remote handling device on the hand bar rises to the top to fastener 30 and when making hand bar 15 swing to the rear, as shown in Figure 5, just can inject locking protrusion 29 in first recess 31 through opening portion 31a towards first recess, 31 rears, and rely on fastener 30 downward directions to move, above-mentioned locking protrusion 29 is fastened in first recess 31.Like this, as shown in Figure 2, the swing position place, rear that handle depression bar 15 is fixed promptly is fixed into back side pressed state.On the other hand, shown in Fig. 5 long and short dash line, when making hand bar 15 swing to the place ahead when fastener 30 being risen to the top, can end recess 32 to second card is fastened on the locking protrusion 28, as shown in Figure 6, rely on fastener 30 moving downwards, the swing position place, the place ahead that handle depression bar 15 is fixing promptly is fixed into the opposite pressed state.

In addition, as shown in Figure 4, on above-mentioned hand bar 15, locating below more than fastener 30, the latch-release spare 33 that can slide along hand bar 15 is installed, this latch-release spare 33 is operated by remote handling device.This latch-release spare 33 applies power downwards by the spring 34 that is arranged in the hand bar 15, and makes unlocking lever 35 outstanding outside.On the other hand, on locking piece 26, make action plate outstanding above above-mentioned unlocking lever 35 36 outstanding, in case along with latch-release spare 33 rises to the top to unlocking lever 35, just can rise to the top to locking piece 26 by action plate 36, make support 25 former latch-releases, just can be folding aforementioned perambulator.

Fig. 7 A, Fig. 7 B are the amplification profiles of perambulator front wheele part of the present invention and trailing wheel portion, and the bottom of the perambulator forward foot in a step 12 and the rear foot 14 is being fixed

castor holding element

40a, 40b respectively.Lower part place at above-mentioned

castor holding element

40a, 40b has been bent to form vertical component effect to vertical direction, and is formed with cylindrical cavity 41a, the 41b of underpart opening at the vertical component effect place of this castor holding element 40a, 40b.In above-mentioned cavity 41a, 41b,

adorning caster axle

43a, 43b, this

caster axle

43a, 43b are outstanding from

castor body

42a, 42b, and can rotate around the rotating shaft of

castor holding element

40a, 40b, this

castor body

42a, 42b are by the horizontal shaft 11a on the sidepiece, 13a axle bearing front-wheel 11 or trailing wheel 13.In above-mentioned

castor body

42a, 42b

caster wheel axle

43a, 43b bottom, be formed with the stage portion 44a, the 44b that lean against ora terminalis place under castor holding element 40a, the 40b, and on this stage portion 44a, 44b, be formed with

recess

45a, 45b, when directly advancing direction, this recess 45a, 45b engage with the aftermentioned fastener at front-wheel 11 or trailing wheel 13.

On the other hand, on front wheel side caster wheel holding element 40a and the mutual opposed side of rear wheel-side caster wheel holding element 40b, be formed with the locking piece resettlement section 46a, the 46b that stretch at above-below direction, in this locking piece resettlement section 46a, 46b, be provided with can slide up and down locking piece 47a, 47b.And, above-mentioned

locking piece

47a, 47b on spring 48a, the 48b (locking piece spring) that are connected to separately in, apply elastic force downwards by

spring

48a, 48b.

An end that is connecting galvanized

wire

50a, 50b on above-mentioned locking piece 47a, the 47b respectively is slotting the leading in the forward foot in a step 12 of galvanized wire 50a that is connected on the front wheel side locking piece 47a.Equally, slotting the leading in the rear foot 13 of galvanized wire 50b that is connected on the rear wheel-side locking piece 47b, as shown in Figure 2, the other end of this galvanized wire 50b is led in the forward foot in a step 12 through jib 16 interpolations, and interconnected with the forward foot in a step 12 interior front wheel side galvanized wire 50a by attaching parts 51 (referring to Fig. 8).

Fig. 8 A, Fig. 8 B are the details amplification profiles of the connecting portion of above-mentioned galvanized wire 50a of expression and galvanized wire 50b, in the forward foot in a step 12, the attaching parts 51 that can swing is being set along the forward foot in a step 12, this attaching parts 51 is installed in the end of above-mentioned galvanized wire 50a and galvanized wire 50b, promptly, shown in Fig. 8 A, on the pivot 52 that the forward foot in a step 12 top ends is pivotally connected on the jib 16, the attaching parts guiding part 53 that is disposed in the forward foot in a step 12 is installed, above-mentioned attaching parts 51 in the elongated slot 53a that forms on this attaching parts guiding part 53 can slide along this elongated slot 53a.In addition, locking blocked operation spare 54 on the plug-in mounting slidably in the forward foot in a step 12, and connecting above-mentioned attaching parts 51 and locking blocked operation spare 54 by inserting logical axle 55 among the elongated slot 12a of the forward foot in a step 12.In addition, above-mentioned attaching parts 51 applies elastic force upward by the spring that is arranged on 53 of this attaching parts 51 and attaching parts guiding parts (galvanized wire spring) 56.On above-mentioned locking blocked operation spare 54, be wholely set the outstanding tab 54a in side laterally, when making hand bar 15 swing to the place ahead, the tab 57 (referring to Fig. 8 B) that is provided with on this hand bar 15 leans against on the tab 54a, by locking blocked operation spare 54, can make above-mentioned attaching parts 51 resist spring 56 and move to the below.

In addition, when making hand bar 15 tilt to move to that rear shown in Figure 2 arrives baby's B dorsal part and when being in the back side and pushing shape, shown in Fig. 7 A, by galvanized wire 50a locking piece 47a is risen to the top by spring 56, caster wheel body 42a locking is freed.Therefore, the rotation around front-wheel 11 vertical axises becomes free.On the other hand, shown in Fig. 7 B, at this moment, rely on spring 48b to make the locking piece 47b of trailing wheel 13 sides move to the below, engage with recess 45b on the rear wheel-side castor body 42b caster wheel axle 43b.Therefore, make trailing wheel 13 batters wheel body 42b locking, just can stop rotation around trailing wheel 13 vertical axises.Like this, when pushing shape overleaf, have only front-wheel 11 rotatable, can freely carry out the orientation of perambulator.

In addition, swing to that the place ahead shown in Figure 6 arrives baby's B opposite side and when being in the opposite and pushing shape, the teat 57 that is provided with on this hand bar 15 leans against on the tab 54a of locking blocked operation spare 54, below locking blocked operation spare 54 is pressed into when handle depression bar 15.Therefore, can be pressed into the below to locking piece 47a by spring 48a, shown in Fig. 9 A, locking piece 47a is engaged among the recess 45a of castor body 42a, makes castor body 42a locking.On the other hand, rise to top to the locking piece 47b of trailing wheel 13 sides by galvanized wire 50b this moment, with the latch-release of recess 45b shown in Fig. 9 B.Therefore, the trailing wheel 13 caster wheel body 42b that become the working direction front side can rotate around vertical axis, make the front-wheel 11 caster wheel body 42a locking that becomes the working direction rear side.

Like this, push overleaf or opposite when pushing the arbitrary state of shape, have only the wheel of working direction front side rotatable, and the wheel revolutions of rear side is locked, push overleaf or opposite when pushing arbitrary state, can both have good directionality.

Figure 10 is the diagrammatic sketch of expression variant embodiment of the present invention, fixing on the forward foot in a step 12 bottoms on the caster wheel holding element 40a, be formed with the cylindrical cavity 60 of lower ending opening, in this cavity 60, assembling caster axle 43a, this caster axle 43a utilizes the horizontal shaft 11a axle bearing on the sidepiece front-wheel 11, can rotate around its axle, and can slide along these cavity 60 inner faces.

Above-mentioned caster axle 43a exterior upper portion is provided with the circumferential recess that is extending 61, be connected with limiting pin 62 in these recess 61 interpolations, this limiting pin 62 is arranged on the castor holding element 40a, and along continuous straight runs extends, by the up/down steps portion of above-mentioned recess and engaging of limiting pin 62, stipulating the sliding scale of above-mentioned caster axle 43a above-below direction.Above-mentioned caster axle 43a is provided with front-wheel straight moving condition stationkeeping pin 63, this front-wheel straight moving condition stationkeeping pin 63 can this caster axle 43a radially in advance and retreat, and compose elastic force by the spring installed in the above-mentioned caster axle 43a 64 and be projected into foreign side.

On the other hand, in cavity 60 lower inner face of castor holding element 40a, caster axle 43a is positioned at lower position with front-wheel 11, and, be provided with groove 65, when front-wheel 11 when directly advancing direction, above-mentioned front-wheel stationkeeping pin 63 these grooves 65 of engaging.This groove 65 extends along axis, and forms the inclination towards castor holding element 40a cavity 60 inner face side on the upper end of this groove 65.

But front-wheel 11 ground connection when using because of perambulator so the forward foot in a step 12 moves to the below, promptly are positioned at the top position facing to the relative caster wheel axle of castor holding element 40a 43a.Therefore, as shown in figure 10, front-wheel stationkeeping pin 63 leans against on the inner face of cavity 60, and can rotate along this inner face.

On the other hand, when perambulator folds, when by the hand bar front-wheel 11 being risen to the top, rely on the deadweight of front-wheel 11, front-wheel 11 descends with the relative together castor holding element of caster axle 43a 40a.Therefore, in this state, when front-wheel 11 is being swung when directly advancing direction, as shown in figure 11, front-wheel straight moving condition stationkeeping pin 63 utilizes spring 64 outstanding being engaged in the groove 65, and front-wheel 11 is fixed in the state of working direction.For this reason, when perambulator is folded, can prevent that axle bearing is unreasonable not folding directly advancing under the direction state at the front-wheel on the caster axle 43a.

The present invention is because of having said structure, by being slidably mounted on above or below locking blocked operation parts in the forward foot in a step move to, just can be combined in recess to the locking piece selection card through galvanized wire, this galvanized wire is inserted and is led in the forward foot in a step and the rear foot, this locking piece is arranged on the sidepiece of the forward foot in a step or the rear foot, and this recess is arranged on the caster axle.This perambulator is pushed shape or opposite when pushing the arbitrary state of shape being in the back side, can both only allow working direction front side wheel rotate around vertical axis.So, can maintain optimum regime to the directionality in the perambulator walking orientation often, can successfully walk.In addition, the forward foot in a step and the logical galvanized wire of rear foot interpolation are connected on the attaching parts that is provided with in the forward foot in a step, just can this attaching parts are moved by locking blocked operation portion.Like this, the connecting portion of galvanized wire and locking blocked operation portion is mounted to slidably shape to fixing switching part owing to be the relative forward foot in a step in the forward foot in a step, and its effect is that the U.S. maloperation of outward appearance is lacked etc.

Claims

1, a kind of perambulator is characterized in that, disposes perambulator body, hand bar, castor holding element, caster axle and locking blocked operation mechanism, and the perambulator body has a pair of forward foot in a step of adorning front-wheel respectively and a pair of rear foot of adorning trailing wheel respectively; Hand bar perambulator body is relatively swung and can be placed the baby opposite and the baby back side; The castor holding element is arranged on each forward foot in a step and each rear foot, and is built-in with locking piece; Caster axle is arranged on each front-wheel and each trailing wheel, and has the engagement section, and locking piece slides in the castor holding element and is engaged to this engagement section; Locking blocked operation mechanism makes locking piece and the action of the locking piece in the rear foot castor holding element in the forward foot in a step castor holding element; This locking blocked operation mechanism can move with the hand lever linkage.

2, perambulator according to claim 1, it is characterized in that, when hand bar during at the baby back side, make locking blocked operation mechanism action, locking piece in each front-wheel castor holding element is thrown off from the caster axle engagement section, and, the locking piece in each trailing wheel castor holding element is engaged with the caster axle engagement section; When hand bar during on the baby opposite, make locking blocked operation mechanism action, the locking piece in each front-wheel castor holding element is engaged with the caster axle engagement section, and, the interior locking piece of each trailing wheel castor holding element is thrown off from the caster axle engagement section.

3, perambulator according to claim 1, it is characterized in that, locking blocked operation mechanism has galvanized wire, and a galvanized wire is arranged on to dispose on caster wheel holding element and the side's rear foot in side's forward foot in a step and disposes between the caster wheel holding element, and connects the locking piece in these castor holding elements; Another galvanized wire is arranged on to dispose on caster wheel holding element and the opposing party's rear foot in the opposing party's forward foot in a step and disposes between the caster wheel holding element, and connects the locking piece in these castor holding elements.

4, perambulator according to claim 3 is characterized in that, galvanized wire by the front wheel side galvanized wire be connected to by attaching parts that rear wheel-side galvanized wire on this front wheel side galvanized wire forms.

5, perambulator according to claim 4 is characterized in that, the blocked operation parts are connected on the attaching parts.

6, perambulator according to claim 5 is characterized in that, the blocked operation parts are by tab, and the hand bar has against the teat of the tab of these blocked operation parts.

7, perambulator according to claim 6 is characterized in that, galvanized wire utilizes the galvanized wire spring to give elastic force to a side.

8, perambulator according to claim 1 is characterized in that, the locking piece in the castor holding element utilizes the locking piece spring to give elastic force to the engagement section often.

9, perambulator according to claim 1 is characterized in that, the caster axle engagement section is to be made of the recess that locking piece engages.

10, perambulator according to claim 1 is characterized in that, caster axle is provided with the stationkeeping pin of freely advancing and retreat; Be formed with the groove of fixing front-wheel or trailing wheel in the castor holding element, this groove is being engaged by the stationkeeping pin in the caster axle back that descends.