EP3685896B1 - Excavator bucket assembly - Google Patents

Description

The present patent application takes priority over the German patent application DE 10 2019 201 054.7 in claim.

The invention relates to an excavator shovel assembly for a toy with an excavator shovel and a shovel arm connected thereto via a shovel pivot joint. The invention also relates to an excavator structure for a toy with such an excavator shovel assembly and to a toy with such an excavator structure.

Toys with excavator superstructures are known, for example, from EP 1 121 965 B1 , of the EP 1 693 093 B1 and EP 3 047 887 B1 . The DE 298 00 336 U1 discloses a toy vehicle with a loading shovel DE 20 2005 001 824 U1 discloses a toy vehicle loading arm for a pivoting loading shovel.

It is an object of the present invention to fix various basic positions of the excavator shovel securely, but at the same time easily exchangeable, in order to increase the gaming experience.

This object is achieved according to the invention by an excavator shovel assembly with the features specified in claim 1.

A bucket swivel locking device with a rocker connecting lever that can overcome a dead center position represents a design that is sufficiently safe on the one hand and sufficiently easy to overcome on the other hand for specifying various basic positions of the excavator bucket relative to the bucket arm.

The discharge pivot position of the excavator shovel can be reached after overcoming the dead center of the rocker connecting lever under the weight of the excavator shovel.

An operating handle according to claim 2 facilitates handling of the shovel pivot locking device. The actuating handle can in particular be formed in one piece on the shovel connecting lever. The operating handle can be arranged in such a way that one-handed operation of the shovel pivot locking device is possible. The operating handle can be arranged in such a way that it can be operated in the same way for right-handers and for left-handers.

A design of the actuating handle according to claim 3 leads to a further facilitation of operation of the shovel pivot locking device.

The advantages of an excavator structure according to claim 4 correspond to those which have already been explained above with reference to the excavator shovel assembly. The lowering position of the shovel arm can be achieved after the actuation component has been switched to the release position under the weight of the shovel arm itself. The actuation component can be designed as an actuation button.

A pretensioning of the actuating component according to claim 5 ensures reliable and reproducible positioning of the actuating component. The preload can take place via a spring component which is attached to the blade arm, for example, and which in particular can be an integral or one-piece component of the blade arm.

An articulated connection between the locking element and the frame component leads to an approximation of the kinematics of the excavator structure during the movement of the shovel arm to a real excavator prototype.

The advantages of a toy according to claim 7 correspond to those which have already been explained above in connection with the excavator structure and the excavator shovel. The toy can be a toy vehicle. The toy can in particular be made entirely of plastic. Some or all of the components of the toy can be injection molded parts.

Fig. 1

eine Aufsicht auf einen vorderen Abschnitt eines Bagger-Spielfahrzeugs mit einem Bagger-Aufbau, aufweisend eine Baggerschaufel-Baugruppe, wobei eine Baggerschaufel der Baugruppe in einer Schaufel-Anhebestellung und ein Schaufelarm der Baugruppe in einer Schaufelarm-Anhebestellung vorliegt;

Fig. 2

eine Seitenansicht des Fahrzeug-Abschnitts nach Figur 1, gesehen aus Blickrichtung II in Figur 1;

Fig. 3

einen Schnitt gemäß Linie III-III in Figur 1;

Fig. 4

ein Detail IV aus Figur 3;

Fig. 5

einen Schnitt gemäß Linie V-V in Figur 1;

Fig. 6

eine Unteransicht eines Details des Fahrzeug-Abschnitts gemäß Linie VI in Figur 5;

Fig. 7

ein Detail VII aus Figur 5;

Fig. 8

ein Detail VIII aus Figur 3;

Fig. 9

in einer zu Figur 1 ähnlichen Ansicht den Fahrzeug-Abschnitt, wobei die Baggerschaufel in einer Schaufel-Totpunktstellung einer Schaufel-Schwenkarretierungs-Einrichtung und der Schaufelarm weiterhin in der Schaufel-arm-Anhebestellung vorliegt;

Fig. 10

einen Schnitt gemäß Linie X-X in Figur 9;

Fig. 11

ein Detail XI aus Figur 10;

Fig. 12

in einer zu Figur 1 ähnlichen Ansicht den Fahrzeug-Abschnitt mit der Baggerschaufel in einer Schaufel-Abgabestellung und dem Schaufelarm weiterhin in der Schaufelarm-Anhebestellung;

Fig. 13

einen Schnitt gemäß Linie XIII-XIII in Figur 12;

Fig. 14

ein Detail XIV aus Figur 13;

Fig. 15

in einer zu Figur 1 ähnlichen Ansicht den Fahrzeug-Abschnitt mit der Baggerschaufel in der Schaufel-Anhebestellung und einen Betätigungsgriff in einer Auslösestellung, in der der Schaufelarm in eine Schaufelarm-Absenkstellung verlagerbar ist;

Fig. 16

einen Schnitt gemäß Linie XVI-XVI in Figur 15;

Fig. 17

ein Detail XVII aus Figur 16;

Fig. 18

einen Schnitt XVIII-XVIII in Figur 15;

Fig. 19

ein Detail XIX aus Figur 18;

Fig. 20

in einer zu Figur 1 ähnlichen Ansicht den Fahrzeug-Abschnitt mit der Baggerschaufel weiterhin in der Schaufel-Anhebestellung und dem Schaufelarm in einer Schaufelarm-Absenkstellung;

Fig. 21

eine Seitenansicht des Fahrzeug-Abschnitts, gesehen aus Blickrichtung XXI in Figur 20;

Fig. 22

einen Schnitt gemäß Linie XXII-XXII in Figur 20;

Fig. 23

ein Detail XXIII aus Figur 22;

Fig. 24

in einer zu Figur 1 ähnlichen Ansicht den Fahrzeug-Abschnitt mit dem Schaufelarm in der Schaufelarm-Absenkstellung und der Schaufel-Schwenkarretierungs-Einrichtung in der Schaufel-Totpunkt-Stellung;

Fig. 25

einen Schnitt gemäß Linie XXV-XXV in Figur 24;

Fig. 26

ein Detail XXVI in Figur 25;

Fig. 27

in einer zu Figur 1 ähnlichen Darstellung den Fahrzeug-Abschnitt mit der Baggerschaufel weiterhin in der Schaufel-Abgabestellung, wobei der Schaufelarm in eine Stellung nahe der Schaufelarm-Absenkstellung bis zum Bodenkontakt der Baggerschaufel abgesenkt ist;

Fig. 28

ein Schnitt gemäß Linie XXVIII-XXVIII in Figur 27;

Fig. 29

ein Detail XXIX aus Figur 28; und

Fig. 30

eine perspektivische Darstellung des Fahrzeug-Abschnitts in der Stellung der Baggerschaufel und des Schaufelarms nach den Figuren 27 bis 29.

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

Fig. 1

Fig. 3 is a plan view of a front portion of an excavator toy vehicle having an excavator assembly, comprising an excavator bucket assembly, an excavator bucket of the assembly in a bucket lift position and a bucket arm of the assembly in a bucket arm lift position;

Fig. 2

a side view of the vehicle section according to Figure 1 , seen from viewing direction II in Figure 1 ;

Fig. 3

a section along line III-III in Figure 1 ;

Fig. 4

a detail IV Figure 3 ;

Fig. 5

a section along line VV in Figure 1 ;

Fig. 6

a bottom view of a detail of the vehicle section according to line VI in FIG Figure 5 ;

Fig. 7

a detail VII from Figure 5 ;

Fig. 8

a detail VIII Figure 3 ;

Fig. 9

in one too Figure 1 similar view of the vehicle section with the excavator shovel in a shovel dead center position of a shovel pivot locking device and the shovel arm still in the shovel arm lift position;

Fig. 10

a section along line XX in Figure 9 ;

Fig. 11

a detail XI from Figure 10 ;

Fig. 12

in one too Figure 1 similar view of the vehicle section with the excavator shovel in a shovel discharge position and the shovel arm still in the shovel arm lift position;

Fig. 13

a section along line XIII-XIII in Figure 12 ;

Fig. 14

a detail XIV from Figure 13 ;

Fig. 15

in one too Figure 1 similar view of the vehicle section with the excavator shovel in the shovel-lifting position and an actuating handle in a release position in which the shovel arm can be displaced into a shovel arm lowering position;

Fig. 16

a section along line XVI-XVI in Figure 15 ;

Fig. 17

a detail XVII Figure 16 ;

Fig. 18

a section XVIII-XVIII in Figure 15 ;

Fig. 19

a detail from XIX Figure 18 ;

Fig. 20

in one too Figure 1 similar view of the vehicle section with the excavator shovel still in the shovel-up position and the shovel arm in a shovel arm-lower position;

Fig. 21

a side view of the vehicle section, seen from viewing direction XXI in FIG Figure 20 ;

Fig. 22

a section along line XXII-XXII in Figure 20 ;

Fig. 23

a detail XXIII Figure 22 ;

Fig. 24

in one too Figure 1 similar view of the vehicle section with the shovel arm in the shovel arm lowered position and the shovel pivot locking device in the shovel dead center position;

Fig. 25

a section along line XXV-XXV in Figure 24 ;

Fig. 26

a detail XXVI in Figure 25 ;

Fig. 27

in one too Figure 1 a similar illustration shows the vehicle section with the excavator shovel still in the shovel discharge position, the shovel arm being lowered into a position close to the shovel arm lowered position until the excavator shovel touches the ground;

Fig. 28

a section along line XXVIII-XXVIII in Figure 27 ;

Fig. 29

a detail XXIX from Figure 28 ; and

Fig. 30

a perspective view of the vehicle section in the position of the excavator bucket and the bucket arm according to FIGS Figures 27 to 29 .

An excavator bucket assembly 1 is in the Figures 1 to 8 with an excavator shovel 2 in a shovel lifting position and a shovel arm 3 in a shovel arm lifting position. The excavator shovel 2 is connected to the shovel arm 3 via a shovel pivot joint with an articulated axis 4. The joint axis 4 runs horizontally. The shovel arm 3 is, for example, from FIG Figure 1 can be seen, double-armed with two partial arms, which are in the Figure 1 are designated by 3a, 3b.

A shovel pivot locking device 5 is used to lock or fix the position of the excavator shovel 2 relative to the shovel arm 3. The latter has a shovel connecting lever 6 which is connected to the excavator shovel 2 via a shovel connecting joint with a hinge axis 7. An operating handle 8 for the excavator shovel assembly 1 is attached to the shovel connecting lever 6. The actuating handle 8 is integrally formed on the shovel connecting lever 6. The operating handle 8 is designed so that both tensile and compressive forces can be exerted on the blade connecting lever 6 via this.

Furthermore, the shovel pivot locking device 5 has a shovel arm connecting lever 9. The latter is connected to the shovel arm 3 via a shovel arm connecting joint with a hinge axis 10 (cf. Fig. 7 ) connected.

The bucket swivel locking device 5 also includes a rocker connecting lever 11. The rocker connecting lever 11 is connected on the one hand to the bucket connecting lever 6 via a bucket rocker connecting joint with a hinge axis 12 and on the other hand to the bucket arm connecting lever 9 via a bucket arm Rocker joint with joint axis 13 connected.

The joint axes 7, 12 and 13 run parallel and at a distance from one another.

The shovel connection joint 7 and the two rocker connection joints 12, 13 are arranged in relation to one another in such a way that the rocker connection lever has a dead center position in which the shovel arm rocker connection joint 13 passes through a dead center joint plane 14, between which in the Figures 1 to 8 Shovel lifting position shown and one in the Figures 12 to 14 and for example also in the Figures 27 to 29 Shovel delivery position shown is displaceable.

The dead center joint plane 14 is indicated by the joint axes 7, 12, on the one hand, of the blade connecting joint and, on the other hand, the blade rocker joint.

In the position, for example, after the Figures 3 and 4th the hinge axis 13 of the shovel arm rocker connecting hinge lies at a distance from the dead center hinge plane 14.

The bucket dead center position is in the Figures 9 to 11 shown. In this dead center position, the joint axis of the shovel arm rocker connecting joint 13 lies in the dead center joint plane 14.

In the shovel lifting position, the excavator shovel 2 lies in a raised lifting / pivoting position relative to the shovel arm 3. In the shovel delivery position, the excavator shovel 2 lies relative to the shovel arm 3 in a delivery pivot position that is pivoted downward relative to the shovel lifting position.

After the bucket dead center position has been overcome, starting from the bucket lifting position, the bucket discharge position can be reached under the weight of the excavator bucket 2. The dead center of the rocker connection lever 11 is overcome, starting from the shovel lifting position, by pulling the operating handle 8 so that the shovel connection lever 6 pivots around the shovel connection joint 7, starting from the locking position of the shovel pivot locking device 5, for example after Figure 4 the dead center is reached, for example in the Figure 11 is reached. Then, under the weight of the excavator shovel 2, the shovel delivery position, for example, according to the Figures 12 to 14 reached.

An excavator structure 15, of which the excavator shovel assembly 1 is a part, also includes a frame component 16, which is a component of a frame of the excavator body 15. The shovel arm 3 is connected to the frame component 16 via a shovel arm pivot joint with the hinge axis 17.

The excavator structure 15 also includes an actuation component 18, which is designed as an actuation button. The actuating component 18 is guided relative to the shovel arm 3 and displaceable between, for example, in the Figure 7 shown locking position and one example in the Figure 17 shown release position. In the locking position, a locking element 19 interacts with a stop 20 of the shovel arm 3 to hold the shovel arm 3 in the shovel arm raised position (cf. Fig. 8 ).

The locking element 19 is designed in the form of a stylized piston. The locking element 19 is connected to the frame component 16 via a locking connecting joint with a hinge axis 19a. As with the shovel arm 3, the locking element 19 is also available in duplicate.

In the locking position, an end face of the locking element 19 interacts with the stop 20 of the shovel arm 3. In the locking position, a section 21 of the actuation component 18 rests against a jacket wall of the locking element 19 (cf. Fig. 8 ).

In the release position of the actuation component 18 (cf. Figure 19 ) the section 21 of the actuating component 18 resting on the locking element 19 is also displaced and pushes, as by comparing the Figures 8 and 19th It can be seen that the locking element 19 is away from the stop 20, so that the locking element 19 is released from the shovel arm 3.

In the release position, the locking element 19 is out of engagement with the stop 20 of the shovel arm 3, so that the shovel arm 3 can be displaced into the shovel arm lowered position.

A spring component 22 designed as a spring tongue (cf. Fig. 6 ) the actuating component 18 is biased in the locking position.

The excavator structure 15 is part of a toy, in particular a toy vehicle, which can be designed as an excavator overall.

The excavator shovel assembly 1, the excavator structure 15 and the entire toy can be made of plastic. The individual components can be manufactured as injection molded parts.

When playing with a toy which has the excavator structure 15, the operator can switch between the various shovel positions and the various shovel arm positions shown in the figures with the aid of the actuating handle 8 on the one hand and the actuating component 18 on the other. Due to the shovel pivot locking device 5, the excavator shovel 2 remains fixed in the shovel lifting position regardless of the shovel arm position, unless the operator actively changes the shovel.

When the excavator shovel 2 is fixed in the shovel lifting position, the shovel arm connecting lever 9 functions as part of a parallelogram guide, which ensures that the excavator shovel 2 remains at the correct angle in the shovel lifting position when the shovel arm 3 moves between the raising and lowering positions so that it doesn't become an undesirable one The excavator bucket 2 is emptied. A coupling rod 23 is part of this parallelogram guide. The coupling rod 23 is connected to the shovel arm connecting lever 9 via a connecting coupling joint with an articulated axis 23a. The coupling rod 23 is connected to the frame component 16 of the excavator body 15 via a further shovel arm coupling joint. This function of the parallelogram guide, to which in addition to the shovel arm connecting lever 9 and also the other levers of the shovel pivot locking device belong, is clearly shown by comparing, for example, FIG Figures 3 and 22nd .

In the same way, the shovel arm 3 remains, for example, in the shovel arm lifting position 3 when the excavator shovel 2 is changed over. on which a lower edge 2a of the excavator shovel 2 comes to rest, possibly for a lifting of the shovel arm 3 from, for example, in FIG Figure 22 Shovel arm lowering position shown in a shovel arm intermediate position, that is, in a pivoting position of the shovel arm 3 between the shovel arm lowering position and the shovel arm lifting position. Such an intermediate position is for example in the Figure 28 shown.

In the shovel delivery position, the rocker connecting lever 11 is behind the shovel rocker connecting joint 12 compared to the shovel lifting position, for example Figure 4 pivoted by about 180 °, so that the blade connecting lever 6 and the rocker connecting lever 11 are now in a relative position that is stretched relative to one another and between the blade connecting joint 7 on the one hand and the On the other hand, there is a large distance between the shovel arm-rocker connection joint 13. This large distance between the joints 7, 13 enables the excavator shovel 2 to pivot relative to the shovel arm 3 about the shovel pivot joint 4 downwards, for example a comparison of FIG Figures 3 and 13th shows.

Claims (7)

1. An excavator shovel assembly for a toy, comprising:

   - an excavator shovel (2),

   - a shovel arm (3) to which the excavator shovel (2) is connected via a shovel swivel joint (4),

   - a shovel swivel locking device (5) for locking the excavator shovel (2) relative to the shovel arm (3),

   - wherein the shovel swivel locking device (5) comprises

   -- a shovel connecting lever (6) that is connected to the excavator shovel (2) via a shovel connecting joint (7),

   -- a shovel arm connecting lever (9) that is connected to the shovel arm (3) via a shovel arm connecting joint (10), -- a rocker connecting lever (11) that is connected, at one end, to the shovel connecting lever (6) via a shovel rocker connecting joint (12) and, at an opposite end, to the shovel arm connecting lever (9) via a shovel arm rocker connecting joint (13),

   - wherein the shovel connecting joint (7) and the two rocker connecting joints (12, 13) are arranged in such a manner that the rocker connecting lever (11) is displaceable through a dead center position in which one of the shovel arm rocker connecting joints (13) passes through a dead center joint plane (14) which is defined by the shovel connecting joint (7) and the other of the two rocker connecting joints (12) between

   -- a shovel lifting position, in which the excavator shovel (2) is in a raised lifting swivel position relative to the shovel arm (3),

   -- a shovel delivery position, in which the excavator shovel (2) lies relative to the shovel arm (3) in a delivery swivel position pivoted downwards in comparison with the shovel lifting position.
2. The excavator shovel assembly according to claim 1, characterized by an operating handle (8) that is attached to the shovel connecting lever (6).
3. The excavator shovel assembly according to claim 2, characterized by a configuration of the operating handle (8) such that by it tensile and compressive forces are exertable on the shovel connecting lever (6).
4. An excavator structure (15) for a toy,

   - with an excavator shovel assembly according to claim 1,

   - a frame component (16),

   - an actuating component (18) that is guided in a displaceable manner relative to the shovel arm (3) between

   -- a locking position, in which a locking element (19) connected to the frame component (16) interacts with a stop (20) of the shovel arm (3) to hold the shovel arm (3) in a shovel arm lifting position, and

   -- a release position in which the actuating component (18) displaces the locking element (19) such that it comes out of engagement with the stop (20) of the shovel arm (3), such that the shovel arm (3) is displaceable into a shovel arm lowering position.
5. The excavator structure according to claim 4, characterized in that the actuating component (18) is pretensioned in the locking position.
6. The excavator structure according to claim 4 or 5, characterized in that the locking element (19) is connected to the frame component (16) via a locking connecting joint (19a).
7. A toy with the excavator structure (15) according to one of claims 4 to 6.

Images