EP3685896A2 - Excavator bucket assembly - Google Patents

Abstract

An excavator bucket assembly (15) has an excavator bucket (2) and a bucket arm (3). A bucket swivel locking device (5) serves to lock the excavator bucket (2) relative to the bucket arm (3). The bucket swivel locking device (5) has a bucket connecting lever (6), a bucket arm connecting lever (9) and a rocker connecting lever (11). The bucket connecting lever (6) is connected to the excavator bucket (2) via a bucket connecting joint (7). The bucket arm connecting lever (9) is connected to the bucket arm (3) via a bucket arm connecting joint. The rocker connecting lever (11) is connected to the bucket connecting lever (6) via a bucket-rocker connecting joint (12) and to the bucket arm connecting lever (9) via a bucket arm-rocker connecting joint (13). The bucket connecting joint (7) and the rocker connecting joints (12, 13) are arranged such that the rocker connecting lever (11) has a dead center position, which is via the bucket connecting joint (7) and a rocker connecting joint (12). is predetermined between a blade raised position and a blade discharge position is displaceable. The result is an excavator shovel assembly in which different basic positions of the excavator shovel can be fixed securely, but at the same time are easily exchangeable.

Description

The present patent application takes the priority of the German patent application DE 10 2019 201 054.7 claim, the content of which is incorporated herein by reference.

The invention relates to an excavator bucket assembly with an excavator bucket and a bucket arm connected to it via a bucket swivel joint. Furthermore, the invention relates to an excavator structure for a toy with such an excavator bucket assembly and a toy with such an excavator structure.

Toys with excavator bodies are known for example from the EP 1 121 965 B1 , of the EP 1 693 093 B1 and EP 3 047 887 B1 .

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

This object is achieved by an excavator bucket assembly with the features specified in claim 1.

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

The delivery pivot position of the excavator shovel can be achieved after overcoming the dead center of the rocker connection lever under a weight of the excavator shovel.

An actuating handle according to claim 2 facilitates handling of the bucket swivel locking device. The actuating handle can in particular be integrally formed on the blade connecting lever. The operating handle can be arranged so that one-hand operation of the bucket swivel locking device is possible. The operating handle can be arranged so that it can be operated in the same way for right-handed and left-handed users.

A design of the actuating handle according to claim 3 further facilitates operation of the bucket swivel 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 bucket assembly. The bucket arm lowering position can be reached after changing the actuation component into the release position, under a weight of the bucket arm. The actuation component can be designed as an actuation button.

Biasing the actuating component according to claim 5 ensures safe and reproducible positioning of the actuating component. The prestressing can take place via a spring component which is fastened, for example, to the blade arm and which can in particular be an integral or integral part of the blade arm.

An articulated connection between the locking element and the frame component according to claim 6 leads to an approximation of a kinematics of the excavator structure during the movement of the bucket arm to a real excavator model.

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 bucket. 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 Schau-felarm 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 Schaufelarm-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 SchaufelAnhebestellung und dem Schaufelarm in einer SchaufelarmAbsenkstellung;

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 FahrzeugAbschnitt mit der Baggerschaufel weiterhin in der SchaufelAbgabestellung, 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 embodiment of the invention is explained below with reference to the drawings. In this show:

Fig. 1

a plan view of a front portion of an excavator toy vehicle with an excavator structure, comprising an excavator bucket assembly, wherein an excavator bucket of the assembly is in a bucket raised position and a bucket arm of the assembly is in a bucket arm raised position;

Fig. 2

a side view of the vehicle section after 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 out Figure 3 ;

Fig. 5

a section along line VV in Figure 1 ;

Fig. 6

a bottom view of a detail of the vehicle section along line VI in Figure 5 ;

Fig. 7

a detail VII from Figure 5 ;

Fig. 8

a detail VIII out Figure 3 ;

Fig. 9

in one too Figure 1 Similar view of the vehicle section, the excavator bucket in a bucket dead center position of a bucket swivel locking device and the bucket arm is still in the bucket arm lifting position;

Fig. 10

a section along line XX in Figure 9 ;

Fig. 11

a detail from XI Figure 10 ;

Fig. 12

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

Fig. 13

a section along line XIII-XIII in Figure 12 ;

Fig. 14

a detail from XIV Figure 13 ;

Fig. 15

in one too Figure 1 similar view of the vehicle section with the excavator bucket in the bucket lifting position and an operating handle in a release position in which the bucket arm can be moved into a bucket arm lowering position;

Fig. 16

a section along line XVI-XVI in Figure 15 ;

Fig. 17

a detail from 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 the vehicle section with the excavator bucket still in the bucket lifting position and the bucket arm in a bucket arm lowering position;

Fig. 21

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

Fig. 22

a section along line XXII-XXII in Figure 20 ;

Fig. 23

a detail from XXIII Figure 22 ;

Fig. 24

in one too Figure 1 similar view of the vehicle section with the bucket arm in the bucket arm lowering position and the bucket swivel locking device in the bucket 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 similar representation, the vehicle section with the excavator bucket still in the bucket delivery position, the bucket arm being lowered into a position near the bucket arm lowering position until the excavator bucket comes into contact with the ground;

Fig. 28

a section along line XXVIII-XXVIII in Figure 27 ;

Fig. 29

a detail from XXIX 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 the Figures 27 to 29 .

An excavator bucket assembly 1 is shown in FIGS Figures 1 to 8 with an excavator bucket 2 in a bucket lifting position and a bucket arm 3 in a bucket arm lifting position. The excavator bucket 2 is connected to the bucket arm 3 via a bucket swivel joint with a joint axis 4. The hinge axis 4 runs horizontally. The blade arm 3 is, for example, from the Figure 1 evident, executed with two arms with two arms, which in the Figure 1 are designated 3a, 3b.

A bucket swivel locking device 5 serves to lock or fix the excavator bucket 2 relative to the bucket arm 3. The latter has a bucket connecting lever 6 which is connected to the excavator bucket 2 via a bucket connecting joint with articulated axis 7. An actuating handle 8 for the excavator bucket assembly 1 is attached to the bucket connecting lever 6. The operating handle 8 is integrally formed on the blade connecting lever 6. The operating handle 8 is designed in such a way that both tensile and pressure forces can be exerted on the blade connecting lever 6.

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

A rocker link lever 11 also belongs to the bucket swivel locking device 5. The rocker link lever 11 is connected on the one hand to the bucket link lever 6 via a bucket-rocker link with articulated axis 12 and on the other hand to the bucket arm link lever 9 via a bucket arm. Rocker connection joint connected to joint axis 13.

The hinge axes 7, 12 and 13 run parallel and spaced apart.

The bucket connecting joint 7 and the two rocker connecting joints 12, 13 are arranged relative to one another such that the rocker connecting lever has a dead center position at which the bucket arm-rocker connecting joint 13 passes through a dead center joint plane 14 between the in the Figures 1 to 8 shown bucket lifting position and one in the Figures 12 to 14 and for example in the Figures 27 to 29 Shovel delivery position shown is shiftable.

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 connecting joint.

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

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

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

After the bucket dead center position has been overcome, the bucket release position can be reached under the dead weight of the excavator bucket 2, starting from the bucket lifting position. The dead center of the rocker connecting lever 11 is overcome, starting from the bucket lifting position, by pulling on the actuating handle 8, so that the bucket connecting lever 6 pivots about the bucket connecting joint 7, starting from the locking position of the bucket swivel 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 is determined, for example, according to Figures 12 to 14 reached.

A digger structure 15, of which the digger bucket assembly 1 is a part, also includes a frame component 16, which is a component a frame of the excavator body 15 is. The bucket arm 3 is connected to the frame component 16 via a bucket arm swivel joint with articulated axis 17.

An excavation component 15 also includes an actuation component 18, which is designed as an actuation button. The actuating component 18 can be displaced relative to the bucket arm 3 in a guided manner, for example in the Figure 7 locking position shown and one example in the Figure 17 shown trigger position. In the locked position, a locking element 19 interacts with a stop 20 of the bucket arm 3 for holding the bucket arm 3 in the bucket arm lifting 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 the joint axis 19a. As with the bucket arm 3, the locking element 19 is also double.

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

In the release position of the actuating component 18 (cf. Figure 19 ) is also the portion 21 of the actuating component 18 which rests on the locking element 19 and presses, as by comparison of the Figures 8 and 19th can be seen, the locking element 19 away from the stop 20, so that the locking element 19 is released from the blade arm 3.

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

Via 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.

The excavator bucket assembly 1, the excavator assembly 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 having the excavator structure 15, the operator can switch between the different bucket positions and the different bucket arm positions, which are shown in the figures, with the aid of the actuating handle 8 on the one hand and the actuating component 18 on the other hand. Because of the bucket swivel locking device 5, the excavator bucket 2 remains fixed in the bucket lifting position, regardless of the bucket arm position, provided that the operator does not actively change the bucket.

When the excavator bucket 2 is fixed in the bucket lifting position, the bucket arm connecting lever 9 functions as part of a parallelogram guide, which ensures that when the bucket arm 3 moves between the lifting and lowering positions, the bucket arm 3 remains in the bucket lifting position with the correct angle so it doesn't become an unwanted Emptying the excavator shovel 2 comes. Part of this parallelogram guide is a coupling rod 23. The coupling rod 23 is connected to the bucket arm connecting lever 9 via a connecting coupling joint with a joint axis 23a. The coupling rod 23 is connected to the frame component 16 of the excavator structure 15 via a further bucket arm coupling joint. This function of the parallelogram guide, which includes not only the bucket arm connecting lever 9 but also the other levers of the bucket swivel locking device, is obtained by comparing, for example, the Figures 3 and 22 .

In the same way, the bucket arm 3 remains, for example, in the bucket arm lifting position 3 when the excavator bucket 2 is changed. If the excavator bucket 2 is moved from the bucket lifting position to the bucket delivery position when the bucket arm 3 is lowered, this leads to the height of the ground, on which a lower edge 2a of the excavator shovel 2 comes to rest, possibly for lifting the shovel arm 3 from that in, for example, FIG Figure 22 Shovel arm lower position shown in an intermediate shovel arm position, ie in a pivoting position of the shovel arm 3 between the shovel arm lower position and the shovel arm raised position. Such an intermediate position is for example in the Figure 28 shown.

In the bucket delivery position, the rocker connection lever 11 is around the bucket-rocker connection joint 12 in comparison to the bucket 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 arranged 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 bucket arm-rocker connection joint 13. This large distance between the joints 7, 13 allows the excavator bucket 2 to pivot relative to the bucket arm 3 about the bucket swivel joint 4 downward, for example a comparison of the Figures 3 and 13 shows.

Claims (7)

Excavator Bucket Assembly (1) - with an excavator shovel (2), - With a bucket arm (3), with which the excavator bucket (2) is connected via a bucket swivel joint (4), - With a bucket swivel locking device (5) for locking the excavator bucket (2) relative to the bucket arm (3), - The blade swivel locking device (5) having: a bucket connecting lever (6) which is connected to the excavator bucket (2) via a bucket connecting joint (7), a bucket arm connecting lever (9) which is connected to the bucket arm (3) via a bucket arm connecting joint (10), - A rocker connecting lever (11), which on the one hand with the bucket connecting lever (6) via a bucket-rocker connecting joint (12) and on the other hand with the bucket arm connecting lever (9) via a bucket arm-rocker connecting joint (13) connected is, - The blade connecting joint (7) and the two rocker connecting joints (12, 13) are arranged such that the rocker connecting lever (11) has a dead center position at which one of the rocker connecting joints (13) is a dead center joint plane (14) passes through, which is predetermined via the blade connecting joint (7) and the other of the two rocker connecting joints (12), is displaceable between a bucket lifting position, in which the excavator bucket (2) lies in a raised, swiveled position relative to the bucket arm (3), - A bucket delivery position in which the excavator bucket (2) lies relative to the bucket arm (3) in a downward pivoting delivery position compared to the bucket lifting position. Excavator bucket assembly according to claim 1, characterized by an actuating handle (8) which is attached to the bucket connecting lever (6). Excavator bucket assembly according to claim 2, characterized by a design of the actuating handle (8) such that tensile and compressive forces can be exerted on the bucket connecting lever (6). Excavator body (15) for a toy, with an excavator bucket assembly according to one of claims 1 to 3, - With a frame component (16), - With an actuating component (18) which is guided between the blade arm (3) displaceable between - A locking position in which a locking element (19), which is connected to the frame component (16), cooperates with a stop (20) of the bucket arm (3) for holding the bucket arm (3) in a bucket arm lifting position, and - A release position in which the actuating component (18) displaces the locking element (19) so that it is disengaged comes with the stop (20) of the bucket arm (3), so that the bucket arm (3) can be moved into a bucket arm lowering position. Excavator structure according to claim 4, characterized in that the actuating component (18) is biased in the locking position. 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 link joint (19a). Toy with an excavator structure (15) according to one of claims 4 to 6.

Images