DE1605870C

DE1605870C - Foldable chassis for prams or dolls' prams

Info

Publication number: DE1605870C
Authority: DE
Inventors: Eberhard; Fiedler Theodor; 8606 Hirschaid Sommer
Original assignee: Hourdeaux-Bergmann Ag, 8606 Hirschaid
Publication date: 1972-08-31

Description

Streben mittelbar über die Hülse fest verbunden sind, so daß sie in jedem Fall gleichzeitig betätigt werden. Ein Arretieren der einzelnen Streben ist nicht erforderlich. Es genügt, die sie verbindende Hülse in der jeweiligen Stellung zu arretieren, womit eine Verbesserung der Stabilität verbunden ist.Struts are indirectly firmly connected via the sleeve, so that they are operated simultaneously in each case. It is not necessary to lock the individual struts. It is sufficient to insert the connecting sleeve in the to lock the respective position, which is associated with an improvement in stability.

Werden beim Aufklappen des Fahrgestells die beiderseitigen Hülsen so weit verschoben, daß die Streben des Grundrahmens und/oder zumindest des Tragrahmens über ihren Totpunkt, d.h. über eine Stellung lotrecht zur Hülsenachse, hinwegschwenken, ist die erforderliche Stabilität des Fahrgestells bereits gewährleistet, insbesondere wenn man die Reibung der Hülsen gegenüber den Schieberschenkeln berücksichtigt. Die Erfindung sieht darüber hinaus vor, daß die Hülse in an sich bekannter Weise zumindest in dejr Gebrauchsstellung arretierbar ist.When opening the chassis, the sleeves on both sides are moved so far that the Striving of the base frame and / or at least the support frame over their dead center, i.e. over a Position perpendicular to the sleeve axis, swivel away, the necessary stability of the chassis is already guaranteed, especially if you take into account the friction of the sleeves against the slider legs. The invention also provides that the sleeve in a known manner at least in dejr position of use can be locked.

Als besonders vorteilhaft erweist es sich, den Schieber etwa im Bereich der Anlenkstelle des Tragrahmens in an sich bekannter Weise um ein Gelenk abknickbar auszubilden und semen oberen Teil über eine weitere Strebe mit der Hülse gelenkig zu verbinden. Diese Ausbildung hat den Vorteil, daß beim Abknicken des Schiebers die beiderseitigen Hülsen zwangläufig auf dem Unterteil des Schiebers gleiten, womit ebenso zwangläufig der Schieber und der Tragrahmen über den beiden Streben auf den Grundrahmen herabgeklappt werden.It proves to be particularly advantageous to place the slide approximately in the area of the articulation point of the support frame in a manner known per se to design a joint so that it can be bent and over its upper part to articulate another strut with the sleeve. This training has the advantage that when If the slide is bent, the sleeves on both sides will inevitably slide on the lower part of the slide, which inevitably means the slide and the support frame over the two struts on the base frame be folded down.

Erfindungsgemäß liegt die Angriffsstelle der mit dem Tragrahmen verbundenen Strebe an der Hülse zwischen den Angriffsstellen der mit dem Grundrahmen verbundenen Strebe und der mit dem oberen Teil des Schiebers verbundenen Strebe.According to the invention, the point of application of the strut connected to the support frame is on the sleeve between the points of attack of the strut connected to the base frame and that of the upper one Part of the slide connected strut.

Es liegt weiter im Rahmen der Erfindung, daß in an sich bekannter Weise der Grundrahmen ein geschlossenes Rechteck bildet, an dem vier Doppelarme angelenkt sind, die jeweils paarweise an ihrem einen Arm je eine Radachse tragen und an ihrem anderen Arm über eine Feder miteinander verbunden sind. Das Fahrgestell erhält auf diese Art angesichts des an sich starren Rahmens eine ausreichende Federung.It is also within the scope of the invention that the base frame is a closed one in a manner known per se Forms a rectangle on which four double arms are articulated, each in pairs at one of theirs Arm each carry a wheel axle and are connected to each other on the other arm via a spring. In this way, the chassis is given sufficient suspension in view of the inherently rigid frame.

Eine bevorzugte Ausführungsform der Erfindung wird im folgenden an Hand der vereinfachten Zeichnungen erläutert. Es zeigtA preferred embodiment of the invention is described below with reference to the simplified drawings explained. It shows

Fig. 1 eine Seitenansicht des Fahrgestells in Ge---45 brauchsstellung,Fig. 1 is a side view of the chassis in Ge --- 45 required position,

Fig. 2 eine Seitenansicht des teilweise zusammengeklappten Fahrgestells,Fig. 2 is a side view of the partially folded chassis,

Fi g. 3 eine Draufsicht auf den Grundrahmen etwa nach Linie ΙΙΙ-ΠΙ in Fig. 1 undFi g. 3 is a plan view of the base frame approximately along line ΙΙΙ-ΠΙ in Fig. 1 and

Fig.4 ein Detail von Fig. 1 in vergrößertem Maßstab.4 shows a detail of FIG. 1 on an enlarged scale.

Das Fahrgestell weist einen Grundrahmen 1 auf, der ein geschlossenes Rechteck bildet. An den Innenseiten von längs verlaufenden Rahmenschenkeln 2 sind je zwei Doppelarme 3 gelenkig befestigt, deren gegeneinander gerichtete Arme 4 durch eine Zugfeder 5 miteinander verbunden sind. Nach außen gerichtete Arme 6 dienen paarweise zur Lagerung je einer Radachse 7 für Laufräder 8.The chassis has a base frame 1 which forms a closed rectangle. On the inside of longitudinal frame legs 2 two double arms 3 are hingedly attached, their mutually directed arms 4 are connected to one another by a tension spring 5. Outward-facing Arms 6 are used in pairs to support one wheel axle 7 for running wheels 8.

An zwei an den Rahmenschenkeln 2 befestigten Laschen 9 ist je ein Schenkel 10 eines Schiebers 11 angelenkt, dessen freie Enden 12 hierzu leicht gegenüber dem Grundrahmen 1 abgebogen sind. Der Schieberll ist zweiteilig ausgebildet, und zwar ist ein oberes Teil 13 um ein Gelenk 14 an an einem Unterteil 15 befestigten Laschen 16 abknickbar, wie insbesondere Fig. 2 erkennen läßt. Die beiderseitigen Laschen 16 dienen außerdem der Anlenkung eines oberen Tragrahmens 17, der zur Aufnahme eines nicht dargestellten Einsatzbettes bzw. eines Sportwagen-Einsatzes od. dgl. dient.One leg 10 of a slide 11 is attached to each of the two tabs 9 attached to the frame legs 2 articulated, the free ends 12 of which are slightly bent with respect to the base frame 1 for this purpose. the Schieberll is designed in two parts, namely an upper part 13 is around a hinge 14 on one Lower part 15 fastened tabs 16 can be bent, as can be seen in particular in FIG. The mutual Tabs 16 are also used to articulate an upper support frame 17, which is used to hold a Not shown insert bed or a sports car insert or the like. Serves.

Auf den beiden Schenkeln 10 des Unterteils 15 des Schiebers 11 ist je eine Hülse 18 verschiebbar gelagert. An dieser greift eine Strebe 19 an, die außerdem in einer Anlenkstelle 20 an dem gegenüber einer Anlenkstelle21 am Schieberll freiragenden Teil des Grundrahmens 1 angelenkt ist. Eine andere Strebe 22 verbindet die Hülse 18 mit dem Tragrahmen^. Schließlich ist zwischen der Hülse 18 und dem abknickbaren oberen Teil 13 des Schiebers 11 eine weitere Strebe 23 vorgesehen.On each of the two legs 10 of the lower part 15 of the slide 11 a sleeve 18 is displaceable stored. At this engages a strut 19, which is also in a pivot point 20 on the opposite an articulation point21 is articulated on the part of the base frame 1 that is exposed on the slide. Another Strut 22 connects the sleeve 18 to the support frame ^. Finally, between the sleeve 18 and the bendable upper part 13 of the slide 11 is provided with a further strut 23.

Wird der Schieberll aus der Gebrauchsstellung nach Fig. 1 in die Stellung nach Fig. 2 um das Gelenk 14 abgeknickt, so wird über die Strebe 23 die Hülse 18 in Pfeilrichtung 24 auf dem Schenkel 10 des Unterteils 15 des Schiebers U verschoben. Dieser Bewegung folgen die beiden Streben 19 und 22, so daß das Unterteil 15 des Schiebers 11 undmit die- ■ sem der Tragrahmen 17 zunehmend an den Grundrahmen 1 des Fahrgestells angeklappt werden. In der Gebrauchsstellung werden das obere Teil 13 und das Unterteil 15 des Schiebers 11 durch mindestens ein Hakenglied 25 gegeneinander arretiert, das hierzu mit einem am Unterteil 15 angeordneten Anschlag 26 zusammenwirkt. If the Schieberll from the position of use of FIG. 1 in the position of FIG. 2 around the joint 14, the sleeve 18 is bent over the strut 23 in the direction of the arrow 24 on the leg 10 of the lower part 15 of the slide U moved. This movement is followed by the two struts 19 and 22, so that the lower part 15 of the slide 11 and with this ■ sem the support frame 17 increasingly to the base frame 1 of the chassis can be folded up. In the position of use, the upper part 13 and the Lower part 15 of the slide 11 locked against each other by at least one hook member 25, which for this purpose with a stop 26 arranged on the lower part 15 cooperates.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

steered strut towards both legs of the slide ■ Patent claims: are supported. .V ~ ', "'" 'Subject of a not pre-published older.

1. Collapsible chassis for Kin- German patent application (German Auslegeschrift The or doll's pram with a wheeled S 1580194) is a collapsible chassis axles-bearing lower base frame and for strollers of the type mentioned above an upper bendable strut between the legs that accommodates an insert bed Support frame and a slide, in which the slide and, the support frame and the Base frame and the support frame on the respective base frame, the chassis in its opposite of use Secure the front end to the lower part of the io position. These struts require an increased Slides are hinged, with this, from the care in handling them to jamming Seen from the side, form a Z-shaped frame · the fingers when folding the chassis and to avoid at their opposite the respective articulation. Eventually, these struts make up, though place exposed parts on the slide above each siez. B. not at least careful due to clumsy handling a hinged strut are locked in both directions, a "considerable safety factor Legs of the slide can be supported, a risk.

characterized in that on each of the US Pat. No. 2,616,718 there is a leg (10). of the slide (11) in a collapsible chassis for a stroller As is known, a sleeve (18) is displaceably overlaid with a base frame supporting the wheel axles is, on which the base frame (1) and ao Kanht, on which a telescope-like push together Support frame (17) hinged relative to the legs of ble handle bar and swiveled through (10) of the slide (11) supporting struts (19, a strut hinged to the base frame is supported 22), are articulated, which is between their articulation. A support frame hinged on one side of the handle bar on the "base frame (1) or support frame men is provided with a fabric seat and is through (17) and on the sleeve (18) are rigid, as the back part of this fabric seat, which for this purpose on a

2. Chassis according to claim 1, thereby arranged near the upper end of the handle bar indicates that the sleeve (18) is attached to a transverse rod that is approximately horizontal As is known, held at least in the use-use position. This arrangement lockable position, however, also excludes the use of an insert

3. Chassis according to claims 1 or 30 bed like a sports car seat.

1 "and 2, characterized in that the slide The French patent 1346197 discloses

About (11) approximately in the area of the articulation point (27) a similarly simply designed, collapsible

of the support frame (17) in a manner known per se. Chassis of a stroller with insertable

can be bent around a joint (14) and its upper fixed seat or basket. A separate wheel set that carries

Part (13) on another strut (23) with the 35 gender base frame is missing. The wheel axles are on

Sleeve (18) is articulated. the lower ends of the

4. Chassis according to at least one of the connected legs of an approximately A-shaped frame Proverbs 1 to 3, characterized in that the stored. The top of the front leg is The point of attack of the one connected to the support frame (17) and slidably bound on the rear leg Strut (22) hinged to the sleeve (18) between 40 mounted sleeves, which are supported by an eccentric the points of attack that can be locked with the base frame (1) when folding the chassis connected strut (19) and the one with the upper one becomes the front leg together with the front axle Part (13) of the slide (U) connected strut folded up to the rear leg

(23) lies ■ Furthermore is from the German utility model

5. Chassis according to at least one of the 45 1 709 577 a chassis for children and dolls sayings 1 to 4, characterized in that known in cars, the base frame of which is a closed As is known, the base frame (1) forms a rectangle on which four double arms are attached forms a closed rectangle on which four are steered, each in pairs at one of theirs Double arms are articulated, each pair of arms each carry a wheel axle and on their other on one of its arms (6) each wheel axle (7) is connected to one another via a spring, gene and on her other arm (4) via a This known stroller chassis is however Spring (tension spring 5) are interconnected. not collapsible.

The invention is based on the object of creating a chassis for prams or dolls' prams.

55 fen, which is particularly simple and safe to use

N o folded and unfolded in such a way

and with the least possible effort

The invention relates to a combined guarantee of the greatest possible security. This collapsible chassis for prams and dolls' prams object is achieved according to the invention, with a lower base bearing the wheel axles 60 that in a chassis of the aforementioned frame and a type of bed accommodating on each leg of the slide in per se upper support frame and a slide, in which a sleeve is slidably mounted in the known manner, the base frame and the support frame on each of the opposite one to the base frame and the support frame. Front ends are articulated on the lower part of the slide opposite the legs of the slide support bar, with this, from the side, the struts are articulated, which see between them, form a Z-shaped frame and at their articulation points on the base frame or support frame are rigid in relation to the respective articulation point on the slide and on the sleeve,
exposed parts over each at least one. In this way it is achieved that the two