FR2489215A1 - Pivoting support for push-chair wheels - temporarily holds wheels in straight ahead position by locking hook engaging axle - Google Patents
Pivoting support for push-chair wheels - temporarily holds wheels in straight ahead position by locking hook engaging axle Download PDFInfo
- Publication number
- FR2489215A1 FR2489215A1 FR8019164A FR8019164A FR2489215A1 FR 2489215 A1 FR2489215 A1 FR 2489215A1 FR 8019164 A FR8019164 A FR 8019164A FR 8019164 A FR8019164 A FR 8019164A FR 2489215 A1 FR2489215 A1 FR 2489215A1
- Authority
- FR
- France
- Prior art keywords
- wheels
- wheel
- push
- lever
- straight ahead
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/04—Braking mechanisms; Locking devices against movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
- B62B2301/046—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
- B62B2301/0463—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by blocking the rotation at a position
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
Description
La présente invention concerne un agencement de roue pivotante, notamment de roue pivotante simple ou double pour poussettes ou similaires. The present invention relates to a swivel wheel arrangement, in particular a single or double swivel wheel for strollers or the like.
Il est fréquent d'équiper les poussettes d'enfants & quatre roues, généralement doubles, de deux roues avant pivotantes qui en facilitent la conduite. It is common to fit children's pushchairs & four wheels, usually double, with two swivel front wheels which make it easier to drive.
Si, d'une façon générale, de telles roues avant pivotantes permettent de diriger plus facilement la poussette, la présence de ces - roues pivotantes s'avère plutôt nuisible qu'utile lorsque la poussette est déplacée sur un sol sablonneux ou gravillonneux. En effet, sur ce genre de terrains, les deux roues avant sont pivotées de manière incontrôlée, et l'une indépendamment de l'autre, par les irrégularités du sol, et non pas commandées de manière simultanée et en fonction précise des impulsions directionnelles données a la poussette par la personne qui la conduit. If, in general, such swivel front wheels make it easier to steer the stroller, the presence of these swivel wheels proves to be more harmful than useful when the stroller is moved on sandy or gritty soil. Indeed, on this kind of terrain, the two front wheels are pivoted in an uncontrolled manner, and one independently of the other, by the irregularities of the ground, and not controlled simultaneously and according to precise directional impulses given to the stroller by the person who drives it.
La présente invention vise à pallier cet inconvénient. The present invention aims to overcome this drawback.
A cet effet, dans l'agencement de roue pivotante sinple ou double faisant l'objet de l'invention, sont prévus des moyens de blocage non permanent du support d'axe de la roue pivotante, en une position non braquée
Ces moyens sont mis en action pour empêcher le pivotement des roues avant de la poussette ou similaire, lorsque celle-ci doit être déplacée sur un sol irrégulier.To this end, in the arrangement of a single or double swivel wheel forming the subject of the invention, means are provided for non-permanent locking of the axle support of the swivel wheel, in a non-steered position.
These means are put into action to prevent the pivoting of the front wheels of the stroller or the like, when the latter has to be moved on uneven ground.
Quand la poussette est utilisée sur un sol suffisamment régulier et ferme, les moyens de blocage sont mis hors service, pour permettre le libre pivotement des roues avant.When the stroller is used on sufficiently regular and firm ground, the locking means are disabled, to allow the front wheels to pivot freely.
Suivant une forme de réalisation préférée de l'invention, lesdits moyens de blocage sont constitués par un levier monté pivotant autour d'un axe horizontal sur l'ar- mature de la poussette ou similaire, une extrémité de ce levier étant repliée e de manière à former un "U" dont la largeur est sensiblement égale à l'épaisseur du support d'axe de la roue, mesurée dans la direction de l'axe de rotation de la roue simple ou double Dans une position du levier, l'extrémité en "U'l de celui-ci vient coiffer le support d'axe de la roue, pour empêcher le pivotement de cette dernière, en la maintenant dans une position non braquée ; dans une autre position du levier, son extrémité en "U" est éloignée du support d'axe, ce qui autorise le libre pivotement de la roue. According to a preferred embodiment of the invention, said blocking means are constituted by a lever mounted pivoting about a horizontal axis on the frame of the stroller or the like, one end of this lever being folded e so to form a "U" whose width is substantially equal to the thickness of the wheel axle support, measured in the direction of the axis of rotation of the single or double wheel In a position of the lever, the end in "U'l thereof covers the axle support of the wheel, to prevent pivoting of the latter, keeping it in a non-turned position; in another position of the lever, its end in" U " is distant from the axle support, which allows the free pivoting of the wheel.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif une forme de réalisation de cet agencement de roue pivotante, appliqué à une poussette d'enfant
Figure 1 représente, en perspective, une poussette dont les roues avant pivotantes doubles sont équipées de moyens de blocage conformes à l'invention
Figure 2 est une vue de face de l'une des deux roues avant doubles de cette poussette, les moyens de blocage étant représentés mis en action
Figure 3 est une vue de côté correspondant à figure 2, et avec indication desdits moyens en cours de déblocage
Figure 4 est une vue en plan par dessus, correspondant a la figure 3.Anyway, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of nonlimiting example, an embodiment of this arrangement of a swivel wheel, applied to a stroller. childish
Figure 1 shows, in perspective, a stroller whose double swivel front wheels are equipped with locking means according to the invention
Figure 2 is a front view of one of the two double front wheels of this stroller, the locking means being shown put into action
Figure 3 is a side view corresponding to Figure 2, and with an indication of said means being unlocked
Figure 4 is a plan view from above, corresponding to Figure 3.
La figure 1 représente une poussette pliable d'un type connu sous l'appellation "poussette-canne", avec une armature tubulaire 1, une nacelle 2, deux roues arrière doubles 2 non pivotantes, et deux roues avant doubles 4 pivotantes. FIG. 1 represents a foldable stroller of a type known under the name "stroller-cane", with a tubular frame 1, a nacelle 2, two double rear wheels 2 which are not swiveling, and two double swiveling front wheels 4.
D'une manière connue, et comme le montrent plus en détail les figures 2 à 4, chaque roue avant double 4 est formée par deux roues unitaires 4a et 4b, montées tournantes sur un même axe de rotation 2, lequel traverse un support d'axe 6. Ce dernier est monté pivotant, autour d'un axe sensiblement vertical 7, à l'extrémité avant coude d'un tube principal 8 de l'armature 1 de la poussette. L'axe de rotation 5 de la roue double 4 se trouve, de façon habituelle, en arrière de l'axe de pivotement 7. In a known manner, and as shown in more detail in FIGS. 2 to 4, each double front wheel 4 is formed by two unitary wheels 4a and 4b, mounted to rotate on the same axis of rotation 2, which passes through a support of axis 6. The latter is pivotally mounted, about a substantially vertical axis 7, at the bend front end of a main tube 8 of the frame 1 of the stroller. The axis of rotation 5 of the double wheel 4 is usually located behind the pivot axis 7.
Les moyens de blocage sont ici constitués par un levier 9, monté pivotant autour d'un axe horizontal 10 sur le tube 8 de l'armature 1, légérement au-dessus du coude de ce tube 8. Une branche du levier 9 est également coudée, comme le montre la figure 3, et son extrémité libre 11 est repliée latéralement de manière à former un "U", le profil de cette extrémité 11 étant bien visible sur la figure 2. The locking means here consist of a lever 9, pivotally mounted about a horizontal axis 10 on the tube 8 of the frame 1, slightly above the elbow of this tube 8. A branch of the lever 9 is also bent , as shown in FIG. 3, and its free end 11 is folded laterally so as to form a "U", the profile of this end 11 being clearly visible in FIG. 2.
L'autre branche du levier 9 est repliée, par exemple en triangle comme le montrent les figures 2 et 4, de façon â former une sorte de petite poignée 12 facilitant la manoeuvre du levier 9.The other branch of the lever 9 is folded back, for example in a triangle as shown in FIGS. 2 and 4, so as to form a sort of small handle 12 facilitating the operation of the lever 9.
La figure 2, ainsi que les tracés en traits continus des figures 3 et 4, montrent les moyens de blocage mis en service pour empêcher le pivotement de la roue double 4 autour de l'axe 7 ; le blocage est obtenu en amenant le levier 9 dans une position angulaire telle que son extrémité en "U" il vient coiffer le support d'axe 6, par dessous.Il est prévu que la largeur de cette-extrémité il est sensiblement égale à l'épaisseur du support d'axe 6, mesurée dans la direction de ltaxe de rotation 5 de la roue double 4 : le support d'axe 6 est ainsi totalement bloqué dans une position non braquée de la roue 4t qui est donc transformée temporairement en une roue non pivotante, telle que chaque roue arrière 3 de la poussette. Si le support d'axe 6 est réalisé sous la forme d'un bloc amortis- seur en caoutchouc, on cherchera à obtenir une certaine friction entre l'extrémité en "U" 11 et le support d'axe 6, pour arrêter le levier 9 en position de blocage. On notera encore que ce levier 9 coopère seulement avec la partie du support 6 située en avant de l'axe de rotation 5 de la roue 4, et n'empoche nullement la libre rotation de cette roue 4 autour de l'axe 5. FIG. 2, as well as the solid lines in FIGS. 3 and 4, show the locking means used to prevent the pivoting of the double wheel 4 around the axis 7; the blocking is obtained by bringing the lever 9 in an angular position such that its "U" end it covers the axis support 6, from below. It is expected that the width of this end is substantially equal to l thickness of the axle support 6, measured in the direction of the axis of rotation 5 of the double wheel 4: the axle support 6 is thus completely locked in an unstuck position of the wheel 4t which is therefore temporarily transformed into a non-swivel wheel, such as each rear wheel 3 of the stroller. If the axle support 6 is made in the form of a rubber damping block, we will try to obtain a certain friction between the "U" end 11 and the axle support 6, to stop the lever 9 in blocking position. It will also be noted that this lever 9 cooperates only with the part of the support 6 situated in front of the axis of rotation 5 of the wheel 4, and does not in any way prevent the free rotation of this wheel 4 around the axis 5.
Pour débloquer la roue 4, il suffit de manoeuvrer le levier 9 par sa poignée 12, en le faisant pivoter autour de l'axe 10 dans le -sens de la flèche li (figure 3). Des que le levier 9 se trouve dans une position pour laquelle son extrémité Il est éloignée du support d'axe 6-une telle position étant indiquée en traits mixtes sur les figures 3 et 4 - le pivotement de la roue 4 autour de l'axe 7 est autorisé, ceci dans les deux sens comme le symbolisent les flèches 14 et li de la figure 4. To unlock the wheel 4, it suffices to operate the lever 9 by its handle 12, by pivoting it around the axis 10 in the direction of the arrow li (FIG. 3). As soon as the lever 9 is in a position for which its end It is distant from the axis support 6-such a position being indicated in phantom in Figures 3 and 4 - the pivoting of the wheel 4 around the axis 7 is authorized, this in both directions as symbolized by the arrows 14 and li in FIG. 4.
Comme il va de soi, l'invention ne se limite pas à la seule forme de réalisation décrite ci-dessus, a' titre d'exemple ; elle en embrasse, au contraire, toutes les variantes comportant des moyens de blocage équivalents, quelle quten soit l'application. C'est ainsi, notamment, que l'agencement de roue pivotante selon l'invention est applicable à des poussettes d'enfants de tous types, des landaus, des poussettes de marché, des chariots de magasins en libre-service, des chariots de manutention, etc..., a roues pivotantes doubles ou simples (avec, dans ce dernier cas, un support d'axe de roue constitué par une chape). It goes without saying that the invention is not limited to the single embodiment described above, by way of example; on the contrary, it embraces all the variants comprising equivalent blocking means, whatever the application. Thus, in particular, the swivel wheel arrangement according to the invention is applicable to children's strollers of all types, baby carriages, market strollers, self-service shopping trolleys, shopping trolleys handling, etc ..., with double or single swivel wheels (with, in the latter case, a wheel axle support consisting of a yoke).
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8019164A FR2489215A1 (en) | 1980-09-02 | 1980-09-02 | Pivoting support for push-chair wheels - temporarily holds wheels in straight ahead position by locking hook engaging axle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8019164A FR2489215A1 (en) | 1980-09-02 | 1980-09-02 | Pivoting support for push-chair wheels - temporarily holds wheels in straight ahead position by locking hook engaging axle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2489215A1 true FR2489215A1 (en) | 1982-03-05 |
Family
ID=9245669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8019164A Withdrawn FR2489215A1 (en) | 1980-09-02 | 1980-09-02 | Pivoting support for push-chair wheels - temporarily holds wheels in straight ahead position by locking hook engaging axle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2489215A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260056A2 (en) * | 1986-09-02 | 1988-03-16 | Aprica Kassai Kabushikikaisha | Baby carriage |
EP0263596A2 (en) * | 1986-10-06 | 1988-04-13 | Aprica Kassai Kabushikikaisha | Caster |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2803003A1 (en) * | 1978-01-20 | 1979-07-26 | Reichelt Gmbh Otto | Supermarket transporter trolley with lockable wheels - locks one pair of wheels and then releases them for easy manoeuvring of stack |
-
1980
- 1980-09-02 FR FR8019164A patent/FR2489215A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2803003A1 (en) * | 1978-01-20 | 1979-07-26 | Reichelt Gmbh Otto | Supermarket transporter trolley with lockable wheels - locks one pair of wheels and then releases them for easy manoeuvring of stack |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260056A2 (en) * | 1986-09-02 | 1988-03-16 | Aprica Kassai Kabushikikaisha | Baby carriage |
EP0260056A3 (en) * | 1986-09-02 | 1989-06-07 | Aprica Kassai Kabushikikaisha | Baby carriage |
EP0263596A2 (en) * | 1986-10-06 | 1988-04-13 | Aprica Kassai Kabushikikaisha | Caster |
EP0263596A3 (en) * | 1986-10-06 | 1988-12-07 | Aprica Kassai Kabushikikaisha | Caster |
US4845805A (en) * | 1986-10-06 | 1989-07-11 | Aprica Kassai Kabushikikaisha | Caster |
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ST | Notification of lapse |