EP3848104B1 - Lift/rotate steering gear for a toy vehicle - Google Patents

Description

The invention relates to a rotating/lifting deflection gear for a toy vehicle. Furthermore, the invention relates to a toy vehicle with such a rotating/lifting deflection gear.

Rotary/lifting deflection gears are already known in many designs in various branches of mechanical engineering for the transmission of a rotary movement into a lifting movement.

Toy vehicles made of plastic are known for example from EP 2 476 469 A and the EP 3 195 913 A .

It is an object of the present invention to develop a rotating/lifting deflection gear in such a way that a single actuating element can be used to move a number of functional components that are spaced apart and can be attached to the lifting component, with the deflection gear being easy to manufacture.

This object is achieved according to the invention by a rotating/lifting deflection gear with the features specified in claim 1.

According to the invention, it was recognized that it is advantageous to first convert a rotary movement into a lateral movement, which can then be converted into a lifting movement via a connecting link. The guide stability of the transmission components involved is achieved by the connecting link. The result is a gear mechanism that is robust despite the moving parts and that, in particular, is designed exclusively with plastic components can be. The laterally displaceable gear component can be a component of the deflection gear that is present in addition to the lifting component. Alternatively, it is possible for the lifting component to be designed so that it can be displaced both laterally and up and down, ie it is displaced obliquely via the rotary gear component. In this case, the lifting component itself represents the laterally displaceable transmission component.

A connecting link transmission component, which carries out a lateral movement, and a lifting component according to claim 2 that can only be displaced parallel to the lifting direction result in transmission components that can be stored easily. The connecting link transmission component can only be displaceable laterally in the plane of movement, on which the lifting direction is perpendicular.

A toothed gear according to claim 3 enables a simple transmission of the rotary movement of the rotary gear component into the lateral movement. The toothed gear can be designed with straight teeth.

A backdrop design according to claim 4 has proven itself. The link can have more than one link bolt and correspondingly more than one link guide. The link can have exactly two link bolts and two associated link guides. A larger number of link bolts and associated link guides, for example four link bolts and four associated link guides, is also possible.

An assignment of the backdrop component according to claim 5 has proven itself. If the link has more than one link bolt and correspondingly more than one associated link guide, a mixed version can also be used in which the associated link components each have at least one link pin and at the same time each have at least one link guide, which are then assigned to the respective counterparts (link guide/link pin) of a further link component.

The advantages of a toy vehicle according to claim 6 correspond to those which have already been explained above with reference to the rotating/lifting deflection gear. The functional component can be a sweeping brush. The toy vehicle can have a number of functional components and in particular a number of different functional components.

The advantages mentioned come into play in the toy vehicle according to claim 7 in particular.

All components of the rotating/lifting deflection gear and also all components of a toy vehicle equipped with them can be made of plastic.

Fig. 1

eine perspektivische und teilweise innere Details preisgebende Ansicht eines Spielfahrzeugs, ausgeführt als Straßenkehrmaschine;

Fig. 2

vergrößert und in einem Axialschnitt ein Dreh-/Hub-Umlenkgetriebe, ausgeführt aus Kunststoff-Komponenten, für das Spielfahrzeug nach Fig. 1, dargestellt in einer maximal angehobenen Hubstellung einer Hubkomponente, die als Trägerkomponente für Kehr-Funktionskomponenten des Spielfahrzeugs dient;

Fig. 3

in einer zu Fig. 2 ähnlichen Darstellung das Umlenkgetriebe mit der Hubkomponente in einer Zwischen-Hubstellung;

Fig. 4

in einer zu Fig. 2 ähnlichen Darstellung das Umlenkgetriebe mit der Hubkomponente in einer maximal abgesenkten Hubstellung; und

Fig. 5

perspektivisch und vergrößert eine Kulissen-Übertragungskomponente des Umlenkgetriebes.

An embodiment of the invention is explained in more detail below with reference to the drawing. In this show:

1

a perspective view, revealing partial interior details, of a toy vehicle, designed as a street sweeper;

2

Enlarged and in an axial section a rotating/lifting deflection gear, made of plastic components, for the toy vehicle 1 , shown in a maximum raised lifting position of a lifting component, which serves as a support component for sweeping functional components of the toy vehicle;

3

in one to 2 Similar representation, the deflection gear with the lifting component in an intermediate lifting position;

4

in one to 2 similar representation, the deflection gear with the lifting component in a maximum lowered lifting position; and

figure 5

in perspective and enlarged a link transmission component of the deflection gear.

A toy vehicle 1 is designed as a street sweeper and has a plurality of functional components, which include sweeping brushes, of which in FIG 1 a sweeping brush 2 is shown. The functional components are supported by a two-part lifting component 3, both parts of which are in the 1 are denoted by 3a and 3b.

For stroke displacement of the lifting component 3 is a rotary / lifting deflection gear 4, the main components in the Figures 2 to 4 are shown.

2 shows the deflection gear with the lifting component 3 or 3a in the maximum raised lifting position.

The deflection gear 4 has a rotary gear component 5 for actuation, one end of which acts as an actuating knob 6 and the opposite end End is designed as teeth 7. The rotary gear component 5 is designed overall in the form of a bolt with a longitudinal axis that coincides with an axis of rotation 8 of the rotary gear component 6 .

The rotating gear component 5 is mounted axially on a frame 9 of the toy vehicle 1 .

To mediate the rotary movement of the rotary gear component 5 in a stroke displacement of the lifting component 3 along a lifting direction 10, which is in the Figures 2 to 4 runs vertically, a scenery transmission component 11 is used, as a whole in the figure 5 is shown. The lifting component 3 can only be displaced in the lifting direction 10 . This displacement along the lifting direction 10 is guided on the frame 9 .

The backdrop transmission component 11 includes a total of four oblique link guides 12, two of which link guides in the figure 5 are denoted by 12a, the lifting component part 3a and two other link guides 12, which are in the figure 5 denoted by 12b, are associated with the other lifting component part 12b. A movement path of the link guides 12 therefore runs obliquely to the lifting direction 10.

The scenery transmission component 11 is laterally in one in the Figures 2 to 4 horizontal direction of movement 13 in a plane of movement on which the lifting direction 10 is perpendicular, guided to the frame 9 displaceable. This displacement is driven via a toothed gear 14 which has teeth 15 in a slot 16 of the transmission components 11 on the side of the link transmission component 11 . With the toothing 15 meshes with the toothing 7 of the rotary gear component 5. The toothed gear 14 has straight teeth.

The toothing 15 is executed on one side in an inner wall of the slot 16, namely on the inner wall that the viewer of figure 5 is facing. The opposite inner wall of the slot 16 has no teeth, but is smooth.

With the link guides 12 (12a, 12b) respectively associated link bolts 17 interact, which are each firmly connected to a part 3a, 3b of the lifting component 3. The two in the Figures 2 to 4 shown link pin 17 are firmly connected to the lifting component part 3a.

To move the functional components of the toy vehicle 1, ie in particular the sweeping brushes, for example to lower the sweeping brushes from the in the figure 1 illustrated, raised position, the actuating knob 6 is rotated about the axis of rotation 8. About the toothed gear 14, this rotational movement is in a lateral movement of the backdrop transmission component 11 along the direction of movement 13 in the 2 transferred to the right. This lateral movement of the link transmission component 11 is converted into a lifting movement of the lifting component 3 along the lifting direction 10 in the linkage with the link guides 12 and the link pin 17 2 transferred down. A path of movement of the link 12, 17 runs obliquely to the lifting direction 10.

3 shows an intermediate position with partially lowered lifting component 3 (3a).

4 shows the situation with the lifting component 3, 3a lowered to the maximum, in which the functional components 2 are lowered so far that they come into contact with the road surface of the toy vehicle 1. About a friction mechanism that corresponds to that which is described for a hay tedder assembly in which EP 2 476 469 B1 , in the lowered position of the lifting component 3 4 the sweeping brushes 2 are driven to rotate about their vertical axes.

The components of the rotating/lifting deflection gear 4 are designed as plastic components. This also applies in particular to the link bolts 17.

The rotating/lifting deflection gear 4 has a total of three components, namely the rotating gear component 5, the connecting link transmission component 11 and the lifting component 3.

The components of toy vehicle 1 are designed as plastic components that can be produced, in particular, by means of injection molding.

Claims (7)

1. A rotary/lifting deflection gear (4), formed from plastic components, for a toy vehicle (1)

   - having a rotary gear component (5) which can be mounted so as to be axially fixed to a frame and can be rotated about an axis of rotation (8),

   characterised by

   - a lifting component (3, 3a, 3b) which can be displaced relative to the rotary gear component (5) via a slotted link (12, 17), the movement path of which runs obliquely to a lifting direction (10),

   - having a toothed gear (14) for transmitting a rotary movement of the rotary gear component (5) into a lateral movement of a gear component (11) in a direction of movement (13) in a movement plane to which the lifting direction (10) is perpendicular, wherein the lateral movement of the gear component (11) is converted via the slotted link (12, 17) into a lifting movement of the lifting component (3, 3a, 3b).
2. A deflection gear according to claim 1, characterised in that the lifting component (3, 3a, 3b) is displaceable exclusively parallel to the lifting direction (10), wherein the rotary/lifting deflection gear (4) has a slotted link transmission component (11) which is displaceable laterally in the direction of movement (13) in the movement plane to which the lifting direction (10) is perpendicular.
3. A deflection gear according to claim 1 or 2, characterised in that the toothed gear (14) has a toothed elongated hole (16) in the lifting component (3) and/or in the slotted link transmission component (11).
4. A deflection gear according to any one of claims 1 to 3, characterised in that the slotted link (12, 17) has at least one slotted link pin (17) and an obliquely extending slotted link guide (12) for guiding the slotted link pin (17).
5. A deflection gear according to claim 4, characterised in that the at least one slotted link pin (17) is part of the lifting component (3), wherein the associated slotted link guide (2) is part of the slotted link transmission component (11).
6. A toy vehicle having a rotary/lifting deflection gear (4) according to any one of claims 1 to 5 and having at least one functional component (2) which can be displaced in a lifting manner via the rotary/lifting deflection gear (4) and is connected to the lifting component (3).
7. A toy vehicle according to claim 6, embodied as a road sweeper.

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