FR2646763A1 - Device for rocking small children - Google Patents

Device for rocking small children Download PDF

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Publication number
FR2646763A1
FR2646763A1 FR8906452A FR8906452A FR2646763A1 FR 2646763 A1 FR2646763 A1 FR 2646763A1 FR 8906452 A FR8906452 A FR 8906452A FR 8906452 A FR8906452 A FR 8906452A FR 2646763 A1 FR2646763 A1 FR 2646763A1
Authority
FR
France
Prior art keywords
magnets
flange
plate
childcare
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8906452A
Other languages
French (fr)
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FR2646763B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR8906452A priority Critical patent/FR2646763A1/en
Priority to FR898907037A priority patent/FR2647325B2/en
Priority to FR898909959A priority patent/FR2649872B1/en
Publication of FR2646763A1 publication Critical patent/FR2646763A1/en
Application granted granted Critical
Publication of FR2646763B1 publication Critical patent/FR2646763B1/fr
Granted legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D9/00Cradles ; Bassinets
    • A47D9/02Cradles ; Bassinets with rocking mechanisms
    • A47D9/04Cradles ; Bassinets with rocking mechanisms with disconnectable rockers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D9/00Cradles ; Bassinets
    • A47D9/02Cradles ; Bassinets with rocking mechanisms
    • A47D9/057Cradles ; Bassinets with rocking mechanisms driven by electric motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/22Devices for rocking or oscillating

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

The invention relates to a motorised device for causing various kinds of childcare accessories in which small children sleep and are carried about to move in a horizontal or vertical reciprocating rocking manner. The device consists of a base 1 with an electric motor 4 driving a disc 11, via a speed reducing mechanism 9, which with the aid of its two magnets 10 and 12 generates a to-and-fro rocking movement in a plate 15 provided with two magnets 16 and 17 for this purpose. When the disc is in motion, the magnets 10 and 16 attract each other whereas magnets 12 and 17 repel each other; then, when said disc has rotated through a half revolution, the magnets 10 and 17 attract each other while the magnets 12 and 16 repel each other. This has the effect of moving the plate 15 in a regular to-and-fro motion with each revolution of the disc 11. The device also comprises a coupling 19 with a multiposition joint 20 which enables it to be fixed to various kinds of childcare equipment, and also with rod and spring assemblies 13 to give the plate 15 a mobile mounting on the base 1.

Description

La présente invention concerne un dispositif destiné à transmettre un mouvement de va-et-vient berceur aux différents accessoires de puériculture sur lesquels sont placés les jeunes enfants
Le but de la présente invention est de proposer un dispo sites électro-mécanique qui remplace le mouvement manuel berceur traditionnel par un mouvement berceur mécanique
A cet effet l'invention concerne un dispositif motorisé doté d'une platine lui permettant la mise en mouvement alternatif ,horizontal ou vertical ,des différents accessoires de puériculture destinés au sommeil pu transport et au repos des jeunes enfants
Dispositif caractérisé
-en ce qu'il comporte =
-une platine vibratile .
The present invention relates to a device intended to transmit a rocking movement back and forth to the various childcare accessories on which young children are placed.
The aim of the present invention is to provide an electro-mechanical site which replaces the traditional manual rocker movement with a mechanical rocker movement
To this end, the invention relates to a motorized device provided with a plate enabling it to set in alternative movement, horizontal or vertical, the various childcare accessories intended for sleep, transport and rest of young children
Device characterized
-in what it contains =
-a vibrating plate.

-une flasque entrainée dans un mouvement rotatif,par un
moteur électrique à laide d'un réducteur de vitesse ,qui
imprime à la platine un mouvement de va-et-vient régulier.
-a flange driven in a rotary movement, by a
electric motor using a speed reducer, which
prints a steady back and forth motion on the turntable.

-des tiges-ressorts (du genre silentbloc )assurant un as
semblage mobile entre la platine et le support de la flasque.
-Spring rods (silentbloc type) ensuring an ace
mobile appearance between the plate and the flange support.

-un boitier électronique permettant le réglage de son
fonctionnement ainsi que sa mise en marche et son arrêt
à l'aide de commandes vocale,à distance et manuelle
-un attelage avec une articulation multi-position permet
tant son assemblage aux accessoires de puériculture
-et en ce que r
-la flasque ,la platine et les tiges-ressorts sont d'une
matière insensible au magnétismedes aimants
-le mouvement alternatif de la platine est réalisé à l'aide
d'un ou de deux aimants courbes ou droits situés sur la
platine et d'un ou de deux autres aimants courbes ou droits
situés sur la flasque
Pour obtenir un mouvement berceur normal
-le dispositif est doté d'une platine d'un poids adéquat
obtenu soit par une platine d'un poids suffisant soit par
l'association des piles-batteries à une platine d'un poids
permettant cette association ce qui permet de réduire
avantageusement le volume du dispositif
-la rotation de la flasque est augmentée lorsque la platine
et la flasque sont dotées d'un seul aimant
Selon un mode de réalisation préférentiel le dispositif est réalisé avec une platine et une flasque ayant chacune deux aimants d'une forme courbe et est logé dans un jouet ou une peluche représentant soit un animal soit un personnage familiers aux Jeunes enfants
D'autres caractéristiques de l'invention apparaîtront à la lecture de la description qui suit et se réfère aux dessins l'accompagnant ,donnés à titre d'exemple non-limitatif et sur lesquels
Les figures I et 2 illustrent schématiquement une ~mp'an- station des différents éléments du dispositif
les figures 3,4 et 5 illustrent schématiquement le déplacement des aimants de la platine vibreuse ,non représentée, lorsque la flasque accomplit un demi-tour
les figures 6,7 et 8 illustrent schématiquement l'amplitude du déplacement de la platine vibreuse à chaque demi-tour.de de la flasque
La figure 9 illustre l'utilisation du dispositif pour un mouvement berceur horizontal
La figure fO illustre l'utilisation du dispositif pour un mouvement berceur vertical
Sur la figure I sont représentés ::en I l'embase du dispositif formant le support sur lequel sont implantés certains éléments dudit dispositif avec ,en 2 bolier électronique permettant le réglage du temps de fonctionnement dudit dispositif ainsi que sa mise en marche et son arrêt à l'aide de commandes vocale 8,à distance 7 et manuelle 3 ,en 6 pilesbatteries rechargeables ou non assurant l'alimentation d'unepart du moteur électrique 4 et d'autre part du bottier électronique 2,en 5 poulie du moteur 4 entrainant la flasque II par l'intermédiaire du réducteur de vitesse 9 ,en 10 et en I2 aimants courbes ,en I7 tiges-ressorts limitent la course de la platine(I5),non représentée,afin que les aimants de la fIascue(II)ne collent pas à ceux de la platine (I5)
Sur la figure 2 sont représentés en I5 la platine vibratile avec ,en I6 et I7 ses aimants courbes ,en I4 points d'assemblage des tiges-ressorts 13 entre la platine et le support I.
-an electronic box for sound adjustment
operation as well as starting and stopping
using voice, remote and manual commands
-a hitch with a multi-position articulation allows
both its assembly with childcare accessories
-and in that r
-the flange, the plate and the spring rods are of one
material insensitive to magnetism of magnets
- the reciprocating movement of the plate is carried out using
one or two curved or straight magnets located on the
platinum and one or two other curved or straight magnets
located on the flange
To obtain a normal rocking movement
-the device has a plate of an adequate weight
obtained either by a plate of sufficient weight or by
the association of battery cells with a weight plate
allowing this association which reduces
advantageously the volume of the device
-the rotation of the flange is increased when the plate
and the flange have only one magnet
According to a preferred embodiment the device is made with a plate and a flange each having two magnets of a curved shape and is housed in a toy or a soft toy representing either an animal or a character familiar to young children
Other characteristics of the invention will appear on reading the description which follows and refers to the accompanying drawings, given by way of non-limiting example and in which
Figures I and 2 schematically illustrate a ~ mp'an- station of the various elements of the device
Figures 3,4 and 5 schematically illustrate the movement of the magnets of the vibrating stage, not shown, when the flange makes a U-turn
Figures 6,7 and 8 schematically illustrate the amplitude of the movement of the vibrating plate at each half-turn. of the flange
Figure 9 illustrates the use of the device for a horizontal rocking movement
Figure fO illustrates the use of the device for a vertical rocking movement
In Figure I are shown: at I the base of the device forming the support on which certain elements of said device are installed with, in 2 electronic bolier allowing the adjustment of the operating time of said device as well as its starting and stopping using voice commands 8, remote 7 and manual 3, in 6 rechargeable or non-rechargeable batteries ensuring power from one part of the electric motor 4 and on the other hand from the electronic shoemaker 2, in 5 pulley of the motor 4 driving the flange II by means of the speed reducer 9, in 10 and in I2 curved magnets, in I7 spring rods limit the stroke of the plate (I5), not shown, so that the magnets of the fIascue (II) not stick to those of the plate (I5)
In FIG. 2 are shown in I5 the vibrating plate with, in I6 and I7 its curved magnets, in I4 points of assembly of the spring rods 13 between the plate and the support I.

Les figures 3 ,4 et 5 représentent l'amplitude du déplacement que la flasque II ,à l'aide de ses aimants I0 et I2 imprime ,à chacun de ses demi-tours ,aux aimants I6 et 17 de la platine I5 non représentée
La figure 3 illustre l'une des positions de départ possible du dispositif .Dans cette position les aimants 10 et I6 s'attirent alors que les aimants I2 et I7 se repoussent
La figure 4illustre la position des aimants I6 et I7 de la platine 15,non représentée,par rapport à celle des aimants 10 et I2 de la flasque II lorsque ladite flasque a été entrainée en rotation d'un quart de tour par le moteur 4 .A ce stade de la rotation de la flasque II ses aimants 10 et I2 n'agissent plus sur les aimants I6 et I7 de la platine I5, non représentée,ce qui permet à ces derniers de se déplacer, sous l'action es tiges-ressorts I3 de rappel ,pour prendre une position intermédiaire momentanée située à-la verticale de la flasque II
La figure 5 illustre la position suivante des aimants I6 et 17 par rapport à celle des aimants 10 et I2 lorsque la flasque Il a progressée à nouveau d'un quart de tour .A ce stade de la progression de la flasque II d'une part les aimants.r2 et I6 se repoussent et d'autre part les aimants 10 et I7 s'attirent
Les figures 6,7 e.t 8 représentent l'amplitude du déplacement engendrant le mouvement alternatif berceur du dispositif que la flasque Il imprime à chacun de ses demi-tours à ladite platine associée aux aimants I6 et I7 ladite platine étant déplacée à droite ,figure 6 ,par les aimants 10 et I2 de la flasque IT puis ramenée à la verticale de ladite flasque figure 7 ,par les tiges-ressorts 13 et enfin déplacée à gauche,figure 8,par les aimants I0 et I2 de la flasque II.
Figures 3, 4 and 5 show the amplitude of the displacement that the flange II, using its magnets I0 and I2 prints, at each of its half-turns, to the magnets I6 and 17 of the plate I5 not shown
Figure 3 illustrates one of the possible starting positions of the device. In this position the magnets 10 and I6 attract while the magnets I2 and I7 repel each other.
FIG. 4 illustrates the position of the magnets I6 and I7 of the plate 15, not shown, relative to that of the magnets 10 and I2 of the flange II when said flange has been driven in rotation by a quarter of a turn by the motor 4. At this stage of the rotation of the flange II, its magnets 10 and I2 no longer act on the magnets I6 and I7 of the plate I5, not shown, which allows the latter to move, under the action of the rods- return springs I3, to take a momentary intermediate position located vertical to the flange II
FIG. 5 illustrates the following position of the magnets I6 and 17 relative to that of the magnets 10 and I2 when the flange II has progressed again by a quarter turn. At this stage of the progression of the flange II on the one hand magnets.r2 and I6 repel each other and magnets 10 and I7 attract each other
Figures 6,7 and 8 show the amplitude of the movement generating the rocking reciprocating movement of the device that the flange It prints at each of its U-turns to said plate associated with magnets I6 and I7 said plate being moved to the right, Figure 6 , by the magnets 10 and I2 of the flange IT then brought back to the vertical of said flange in FIG. 7, by the spring rods 13 and finally moved to the left, FIG. 8, by the magnets I0 and I2 of the flange II.

La figure 8représente également d'une part l'attelage articulé I9 du dispositif permettant ,grâce à sa molette crantée 20 ,l'assemblage dans de multiples positions dudit dis positif aux différents accessoires de puériculture et d'autre part la paroi I8 de la flasque II limitant le champ des aimants
La figure 9 représente un dispositif assemblé ,à l'aide de son attelage r9 ,à un accessoire de puériculture 21 auquel il imprime un mouvement berceur horizontal
La figure 10 représente un dispositif assemblé ,à ltaide de son attelage I9 ,à un accessoire de puériculture 22,du type poussette ou similaire ,auquel il imprime un mouvement berceur vertical
Dispositif particulièrement bien adapté pour réaliser un mouvement berceur vertical.
FIG. 8 also represents on the one hand the articulated coupling I9 of the device allowing, thanks to its notched wheel 20, the assembly in multiple positions of said positive device to the various childcare accessories and on the other hand the wall I8 of the flange II limiting the field of magnets
FIG. 9 represents a device assembled, using its hitch r9, to a childcare accessory 21 to which it prints a horizontal rocking movement
FIG. 10 represents a device assembled, using its coupling I9, to a childcare accessory 22, of the stroller type or the like, to which it prints a vertical rocking movement
Device particularly well suited for performing a vertical rocking movement.

La présente invention n'est pas limitée aux descriptions qui viennent d'en être données mais couvre au contraire toutes les variantes qui pourraient lui être apportées sans sortir de son cadre et de son esprit  The present invention is not limited to the descriptions which have just been given, but on the contrary covers all the variants which could be made to it without departing from its scope and its spirit.

Claims (1)

REVENDICÂTI ONS  CLAIMS ONS I)Dispositif motorisé rour imprimer un mouvement berceur horizontal ou vertical aux différents accessoires de puériculture destinés au sommeil au repos et au transport des jeunes enfants ,caractérisé- en ce qu'il comprendI) motorized device rour to print a horizontal or vertical rocking movement to the various childcare accessories intended for sleep at rest and for the transport of young children, characterized in that it comprises une platine vibratile (15) engendrant un mouvement alternatif berceur a vibrating plate (15) generating an alternative rocking movement une flasque (II) ,mise en mouvement par un moteur électrique (4) par l'intermédiaire d'un réducteur de vitesse (9) imprimant un mouvement de va-et-vient à la ratine (I5) a flange (II), set in motion by an electric motor (4) via a speed reducer (9) imparting a back and forth movement to the terry cloth (I5) des tiges-ressorts(I3) assurant un assemblage mobile entre la platine (I5) et le support(I)de la flasque(II)tout en interdisant aux aimants (I6) et (I7) de se coller aux aimants (I0) et (I2) de la flasque (II),en limitent la course de la platine (15),et en ramenant automatiquement 1? platine (I5) à la verticale de la flasque (II)dès lors que ses aimants (I6) et (I7) ne sont plus sous l'effet du champ magnétique des aimants (I0) et (I2) de la flasque (iî)  spring rods (I3) ensuring a movable assembly between the plate (I5) and the support (I) of the flange (II) while preventing the magnets (I6) and (I7) from sticking to the magnets (I0) and (I2) of the flange (II), limit the stroke of the plate (15), and by automatically bringing back 1? plate (I5) vertical to the flange (II) as soon as its magnets (I6) and (I7) are no longer under the effect of the magnetic field of the magnets (I0) and (I2) of the flange (iî) un bottier électronique (2) ,alimenté par des piles-batteries (6)rechargeables ou non ,permettant le réglage du temps de fonctionnement ainsi que la mise en marche et l'arrêt du dispositif à l'aide de commandes vocale (85 ,à distance (7) et manuelle (3) an electronic boot (2), powered by rechargeable or non-rechargeable batteries (6), allowing the adjustment of the operating time as well as the starting and stopping of the device using voice commands (85, to distance (7) and manual (3) un attelage (I9) doté d'une articulation (20) permettant un assemblage multi-positions du dispositif aux différents accessoires de puériculture 2) Dispositif selon la revendication I,caractériss par le fait que la platine (I5) ,la flasque (II) et les tiges-ressorts (IT) sont d'une matière insensible ou magnétisme des aimants , 3) Dispositif selon les revendications I et 2 ,caractérisé par le fait que la platine vibratile (I5) est dotée de deux aimants (16) et (I7) 4) Dispositif selon les revendications I,2 et 3 ,caractérisé parle fait que la platine vibratile (I5) est dotée d'un seul rimant (16) ou (I7) 5) Dispositif selon les revendications 1,2,3 et 4,caractérisé par le fait que la flasque (II) est pourvue de deux aimants (I0) et (I2) 6) Dispositif selon les revendications I,2,3,4 et 5,caractérisé par le fait que la flasque (II) est dotée d'un seul aimant (I0) ou (I2) 7) Dispositif selon les revendications r ,3 ,4 ,5 ,et 6 , caractérisé par le-fait que la flasque (II) comporte une paroi (I8),insensible au magnétisme,Iimitant le champ magnétique des aimants (10) et (I2) 8) Dispositif selon les revendications I,3,4,5 et 6,caractérisé par le fait que les aimants (I0)-(I2) et (I6)-(I7) ont une forme courbe 9) Dispositif selon les revendictions 1,3,4,5,6 et 7,caractérisé par le fait que les aimants (I0)-(I2) et (I6)-(I7)ont une forme droite a hitch (I9) provided with a joint (20) allowing a multi-position assembly of the device with the different childcare accessories 2) Device according to claim I, characterized in that the plate (I5), the flange (II) and the spring rods (IT) are of an insensitive material or magnetism of the magnets, 3) Device according to claims I and 2, characterized in that the vibrating plate (I5) is provided with two magnets (16) and ( I7) 4) Device according to claims I, 2 and 3, characterized by the fact that the vibrating plate (I5) is provided with a single rhyme (16) or (I7) 5) Device according to claims 1,2,3 and 4, characterized in that the flange (II) is provided with two magnets (I0) and (I2) 6) Device according to claims I, 2,3,4 and 5, characterized in that the flange (II) is equipped with a single magnet (I0) or (I2) 7) Device according to claims r, 3, 4, 5, and 6, characterized in that the flange (II) has a wall (I8), insensitive to magnetism, Iimiting the magnetic field of the magnets (10) and (I2) 8) Device according to claims I, 3,4,5 and 6, characterized in that the magnets (I0) - (I2) and (I6) - (I7) have a curved shape 9) Device according to claims 1,3,4,5,6 and 7, characterized in that the magnets (I0) - (I2 ) and (I6) - (I7) have a straight shape I0) Dispositif selon la revendication I, caractérisé par le fait que les éléments le composant sont réalisés sols une forme réduite permettant de le loger dans un jouet ou une peluche représentant nn animal ou un personnage familier aux jeunes enfants I0) Device according to claim I, characterized in that the elements composing it are made of soil in a reduced form allowing it to be housed in a toy or a plush representing an animal or a character familiar to young children.
FR8906452A 1989-05-11 1989-05-11 Device for rocking small children Granted FR2646763A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8906452A FR2646763A1 (en) 1989-05-11 1989-05-11 Device for rocking small children
FR898907037A FR2647325B2 (en) 1989-05-11 1989-05-24 DEVICE FOR Cradling YOUNG CHILDREN
FR898909959A FR2649872B1 (en) 1989-05-11 1989-07-19 DEVICE FOR Cradling YOUNG CHILDREN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8906452A FR2646763A1 (en) 1989-05-11 1989-05-11 Device for rocking small children

Publications (2)

Publication Number Publication Date
FR2646763A1 true FR2646763A1 (en) 1990-11-16
FR2646763B1 FR2646763B1 (en) 1991-11-29

Family

ID=9381734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8906452A Granted FR2646763A1 (en) 1989-05-11 1989-05-11 Device for rocking small children

Country Status (1)

Country Link
FR (1) FR2646763A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307531A (en) * 1992-09-23 1994-05-03 Kao Yao Tzung Rocking cradle aided by magnets
EP1902924A1 (en) * 2006-09-21 2008-03-26 Spirit2go GmbH Device for generating a motion of a stroller
USD772625S1 (en) 2014-11-26 2016-11-29 Mattel, Inc. Infant support structure with a rocking device
CN108082251A (en) * 2017-12-11 2018-05-29 郑州天舜电子技术有限公司 A kind of multistage rocking type perambulator of double grooved pulley mechanism driving
CN108100017A (en) * 2017-12-11 2018-06-01 郑州天舜电子技术有限公司 A kind of walking rocking perambulator based on magnet characteristic

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR465576A (en) * 1913-12-01 1914-04-20 Jan Wozniak Baby carriage
FR1260520A (en) * 1960-06-24 1961-05-05 Electrical or mechanical device producing oscillations intended for cradles or baby carriages
DE2122450A1 (en) * 1971-05-06 1972-11-16
US3952343A (en) * 1974-07-29 1976-04-27 Gim Wong Automatic baby crib rocker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR465576A (en) * 1913-12-01 1914-04-20 Jan Wozniak Baby carriage
FR1260520A (en) * 1960-06-24 1961-05-05 Electrical or mechanical device producing oscillations intended for cradles or baby carriages
DE2122450A1 (en) * 1971-05-06 1972-11-16
US3952343A (en) * 1974-07-29 1976-04-27 Gim Wong Automatic baby crib rocker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307531A (en) * 1992-09-23 1994-05-03 Kao Yao Tzung Rocking cradle aided by magnets
EP1902924A1 (en) * 2006-09-21 2008-03-26 Spirit2go GmbH Device for generating a motion of a stroller
USD772625S1 (en) 2014-11-26 2016-11-29 Mattel, Inc. Infant support structure with a rocking device
CN108082251A (en) * 2017-12-11 2018-05-29 郑州天舜电子技术有限公司 A kind of multistage rocking type perambulator of double grooved pulley mechanism driving
CN108100017A (en) * 2017-12-11 2018-06-01 郑州天舜电子技术有限公司 A kind of walking rocking perambulator based on magnet characteristic
CN108100017B (en) * 2017-12-11 2020-03-10 吉林大学第一医院 Walking and shaking type baby carriage based on magnet characteristics
CN108082251B (en) * 2017-12-11 2020-04-24 上海垚帆数码科技有限公司 Multi-stage shaking type baby carriage driven by double-sheave mechanism

Also Published As

Publication number Publication date
FR2646763B1 (en) 1991-11-29

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