Connection bridge device

Abstract

The present invention proposes a connecting bridge device for connecting a multi-point link (2a; 2b) particularly to a multi-member type axle (3a; 3b), the connecting bridge device comprising: at least one main body (4a; 4b) for receiving and inducing force and / or torque transmitted between the axle (3a; 3b) and the multi-point link (2a; 2b); at least one axle fixing unit (5a; 5b, 6a; 6b) for fixing the main body (4a; 4b) to the axle (3a; 3b); and at least one link connecting unit (8a; 8b, 9a) intersecting the main extension surface (7a; 7b) of the main body (4a; 4b) to connect the main body (4a; 4b) to the multi-point link (2a; 2b).

Description

Technology Field

[0001] The present invention relates to a connecting bridge device for connecting a multi-point link, in particular, to a multi-member type axle. Furthermore, the present invention relates to a connecting system and a vehicle, in particular a commercial vehicle. Additionally, the present invention relates to a method for manufacturing a connecting bridge device. Background Technology

[0002] Multipoint links and multi-member axles are known from the prior art. For example, German patent application DE 199 62 406 A1 shows a four-point link, and U.S. patent application US 2019 / 0135101 A1 shows an axle assembly equipped with an electric motor.

[0003] The present invention proposes a connecting bridge device for connecting a multi-point link, particularly to a multi-member type axle. The connecting bridge device comprises at least one main body for receiving and inducing force and / or torque transmitted between the axle and the multi-point link. The connecting bridge device comprises at least one axle fixing unit for fixing the main body to the axle. The connecting bridge device comprises at least one link coupling unit intersecting the main extension surface of the main body to connect the main body to the multi-point link.

[0004] The connecting bridge device is preferably formed at least partially as a connecting bridge, particularly as an axle bridge. The multi-point link is formed particularly as a three-point link or a four-point link, and the four-point link is provided particularly for the stabilization of commercial vehicles. Alternatively, it is conceivable to form the multi-point link as a disassembled triangular link. The disassembled triangular link may, in particular, have two struts arranged in a V-shape similar to a three-point link having a virtual intersection. The disassembled triangular link is formed particularly without a central housing. Preferably, the same axle may be used depending on the configuration of the connecting bridge device having different chassis geometry, particularly different multi-point links. The axle is preferably configured as an electric axle comprising at least one drive unit. The axle has particularly at least two, preferably at least three, axle bodies particularly coupled to each other. Alternatively, the axle may have a single axle body. The "main extension plane" of an object specifically refers to a plane parallel to the largest side of the smallest imaginary cuboid that almost completely encloses the object, and specifically passes through the center point of the cuboid.

[0005] Multipoint links are preferably provided to connect an axle to the body frame of a vehicle, particularly a commercial vehicle. In particular, multipoint links are provided to transmit forces acting on the vehicle, particularly the vehicle axle, during driving to the body frame for axle guidance. Multipoint links, particularly four-point links, are provided specifically to stabilize the vehicle, for example, to absorb at least partially torque resulting from rolling motion. Forces and / or torques can be transmitted at least partially from the axle to the body frame, particularly by the multipoint links. If the multipoint links are attached directly to the axle, particularly the center of the axle, forces and / or torques can damage the axle, particularly the center of the axle. The center may be configured to be particularly less robust, and particularly weaker, than other axle body parts, for example, due to its configuration for accommodating a drive unit.

[0006] A connecting bridge device is preferably provided to indirectly connect a multipoint link to an axle. In particular, the connecting bridge device serves as a connecting piece between the multipoint link and the axle. Preferably, the connecting bridge device is provided to connect the multipoint link to at least one axle body configured differently from the central part. Preferably, the connecting bridge device is provided to connect the multipoint link to at least two axle bodies configured differently from the central part. Preferably, the connecting bridge device is provided to at least partially absorb the force and / or torque transmitted between the axle and the multipoint link and to at least partially direct it from the central part to, in particular, at least one axle body configured differently from the central part. The word “provided” means specifically, specifically programmed, specifically mounted, and / or specifically designed. The word “object provided for function” means specifically that the object performs that function in at least one operating state.

[0007] Preferably, the connecting bridge device comprises at least two axle fixing units for fixing the main body to the axle, particularly to at least two axle bodies configured differently from the central portion. Preferably, the connecting bridge device comprises at least one link connecting unit for connecting the main body to a multi-point link configured as a three-point link. The main body is preferably formed as a metal part, particularly a cast part. Alternatively, it is conceivable that the main body be formed as a composite material part, a forged part, or other part that appears useful to a person skilled in the art. In particular, the main body has a higher part rigidity than the central portion of the axle.

[0008] The axle fixing units and / or at least one link coupling unit are preferably formed integrally with the main body. The term "integrally" means that they are formed specifically as a single piece. Preferably, said single piece is manufactured from a single blank, a single mass, and / or a single mold. In particular, the connecting bridge unit is formed as an integral part, particularly to achieve high part rigidity. The axle fixing units and / or at least one link coupling unit include at least two fixing ducts, particularly for accommodating at least one fixing duct, preferably for accommodating a fixing means such as a screw, bolt, etc. In particular, the fixing duct extends at least partially, preferably completely, through the main body and is specifically defined by the main body. Preferably, at least one fixing duct of the link coupling unit provided for coupling with a three-point link extends perpendicularly to at least one fixing duct of the link coupling unit provided for coupling with a four-point link.

[0009] Preferably, at least one link coupling unit is disposed at least partially within the main extension plane of the main body, particularly for efficient force absorption and / or torque absorption by the main body. Preferably, at least one link coupling unit extends at least partially from two sides facing opposite each other on the main extension plane of the main body.

[0010] By the configuration of the connecting bridge device according to the present invention, efficient force absorption and / or torque absorption and force and / or torque induction by multi-point links are preferably made possible. Preferably, load reduction and wear may be reduced, particularly for multi-component axles. Preferably, the multi-point links may be used with multi-membered, particularly electric, axles. Preferably, a high level of vehicle occupant safety may be possible.

[0011] Additionally, a configuration is proposed in which the connecting bridge device comprises at least two link connecting units for connecting a main body to at least two connecting units of a multi-point link. Preferably, the connecting bridge device comprises at least two link connecting units for connecting a main body to a multi-point link formed as a four-point link or a divided triangular link. In particular, the connecting units of the multi-point link are formed as connecting claws, particularly as molecular joints. Preferably, the link connecting units for connecting to the four-point link or the divided triangular link are positioned in two particularly outer regions of the connecting bridge device, and in particular, at least one link connecting unit is positioned in each of the outer regions. The outer regions form poles facing opposite each other, particularly along the main extension direction of the connecting bridge device. The "main extension direction" of the object specifically refers to a direction parallel to the longest edge of the smallest imaginary rectangular prism that almost completely surrounds the object. Preferably, an axle fixing unit is positioned in the outer regions, and in particular, at least one axle fixing unit is positioned in each of the outer regions. Preferably, a secure connection with a 4-point link or a disassembled triangular link may be possible.

[0012] Additionally, a configuration is proposed in which the main body extends longer than at least one link coupling unit perpendicularly to the main extension plane in a central region facing away from at least one axle fixing unit. The central region is positioned particularly between the two outer regions along the main extension direction. In particular, in the central region, the main body extends longer than at least one link coupling unit perpendicularly to the main extension plane on at least one side of the main extension plane, preferably on both sides of the main extension plane. Preferably, a particularly robust connecting bridge device may be provided.

[0013] Additionally, a configuration is proposed in which the main body has a maximum transverse extension perpendicular to the main extension plane in a central region, particularly facing away from at least one axle fixing unit mentioned earlier. In particular, the main body has a larger transverse extension perpendicular to the main extension plane in the central region than in the outer region, particularly in terms of part thickness. In particular, the main body of a connecting bridge device provided to connect at least four-point links has a maximum transverse extension perpendicular to the main extension plane in the middle region. Preferably, the main body may have at least one recess, etc. parallel to the main extension plane in the central region so as to be mounted precisely to an axle, for example, equipped with a power electronic system. Preferably, efficient force absorption and / or torque absorption through the main body may be possible.

[0014] Additionally, it is proposed that the main body is formed as a hollow profile part at least partially. Preferably, the main body is formed as a hollow profile part with one or more sides open. In particular, the main body of a connecting bridge device provided for connecting a four-point link is formed as a hollow profile part with one side open. In particular, the main body of a connecting bridge device provided for connecting a three-point link is formed as a hollow profile part with multiple sides, particularly two sides open. Preferably, the main body of a connecting bridge device provided for connecting a four-point link is formed to be at least partially open on a side intersecting the main extension plane. In particular, the main body of a connecting bridge device provided for connecting a four-point link is formed to be at least partially open on a side opposite to the link coupling units. In particular, the main body of a connecting bridge device provided for connecting a three-point link is formed to be open on at least one, preferably two, side that does not intersect with the main extension plane. Preferably, the main body of a connecting bridge device provided for connecting a three-point link is formed to be open on two sides positioned on different sides of the main extension plane. Preferably, the main body is formed to be open at least in the central region. Preferably, a weight-optimized connecting bridge device may be provided.

[0015] Additionally, a configuration is proposed in which the main body has at least one reinforcing rib. In particular, the main body of a connecting bridge device provided to connect at least four-point links has at least one reinforcing rib. In particular, the main body has at least one reinforcing rib, preferably at least two reinforcing ribs, particularly preferably at least three reinforcing ribs, and very particularly preferably at least four reinforcing ribs. Preferably, the reinforcing rib has a plane intersecting with the main extension plane. In particular, the reinforcing rib extends perpendicularly and parallelly to the main extension plane. In particular, the reinforcing rib supports the outer surface regions of the main body that are spaced apart from each other transversely with respect to the main extension plane. The main body having the reinforcing rib is formed by a cast structure with one side open, particularly in the central region. Preferably, a connecting bridge device optimized in terms of weight and stiffness can be provided.

[0016] Additionally, a configuration is proposed in which the main body has at least two reinforcing ribs that together form a single undercut section. The two reinforcing ribs preferably define a central cavity located at least partially in the central region. When viewed from the main extension plane, the two reinforcing ribs particularly form an angle of at least 45°, preferably at least 65°, and particularly preferably at least 85°. When viewed from the main extension plane, the two reinforcing ribs particularly form an angle of up to 125°, preferably up to 105°, and particularly preferably up to 85°. Preferably, additional reinforcing ribs of the main body extend parallel to each other when viewed from the main extension plane. Preferably, a connecting bridge device having high bending rigidity may be provided.

[0017] Additionally, a connection system is proposed comprising at least one, particularly the aforementioned, particularly multi-membered axle and at least one connection bridge device according to the present invention, for connecting a multi-point link to a multi-membered axle in particular. The axle has at least one connection unit disposed separately from the central portion of the axle in particular to secure the connection bridge device. The at least one connection unit is disposed in at least one shaft body formed differently from the central portion. The axle preferably comprises at least two connection units, and at least one connection unit is disposed in each of the at least one shaft body formed differently from the central portion. Preferably, the shaft bodies formed differently from the central portion, in particular the connection units, are symmetrically disposed around the central portion along the axle. Preferably, the connection units are provided for coupling with the axle fixing unit of the connection bridge device. In particular, the connection unit forms a screw connection point for screw-fixing the connection bridge device to the shaft body formed differently from the central portion. Preferably, secure, low-wear fixing of the connection bridge device to the axle may be possible.

[0018] Additionally, a configuration is proposed in which the axle is formed as an electric axle and the central portion comprises at least one drive unit. In particular, the axle is provided to particularly rotate and drive vehicle wheels connected to the axle. The central portion forms at least partially a drive unit housing to accommodate at least one drive unit. The drive unit comprises, in particular, at least one electric motor, preferably at least two electric motors. Alternatively or additionally, a configuration may be conceived in which the drive unit comprises at least one hydraulic drive unit, at least one pneumatic drive unit, at least one internal combustion engine, or another drive unit that appears useful to a person skilled in the art. The drive unit may include additional components that appear useful to a person skilled in the art, such as, for example, a differential, a gearbox, a transmission, etc. The central portion is positioned along the axle in the center between at least two shaft bodies formed differently from this central portion, and is particularly coupled with the shaft bodies. The shaft bodies formed differently from the central portion particularly form at least partially a housing for a torque transmission unit. Preferably, the shaft bodies formed differently from the central portion are formed similarly to one another. Preferably, the power axle can be used reliably with minimal wear through a multi-point linkage.

[0019] Additionally, a configuration is proposed in which the connection system comprises at least one multi-point link, in particular a three-point link or a four-point link. As an alternative to the configuration as a three-point link or a four-point link, the multi-point link may also be formed as a disassembled triangular link. The multi-point link is preferably connected to the vehicle body frame at two points. The multi-point link formed as a three-point link is joined to a connecting bridge device in an articulated manner at one additional point, in particular. The multi-point link formed as a four-point link is joined to a connecting bridge device in an articulated manner at two additional points, in particular. Preferably, an efficient and operationally reliable connection system can be provided.

[0020] Additionally, a vehicle, particularly the aforementioned commercial vehicle, is proposed that includes at least one connecting bridge device according to the present invention and / or at least one connecting system according to the present invention. The vehicle is preferably configured as a land vehicle. The vehicle may be configured as a truck, a construction vehicle, a bus, or another vehicle that appears useful to a person of ordinary skill. Preferably, a vehicle safe for the occupants may be provided.

[0021] In addition, a method for manufacturing a connecting bridge device according to the present invention is proposed. In at least one method step, the connecting bridge device is cast. In at least one additional method step, particularly in an optional method step, at least one casting core is destroyed. Preferably, an efficient and resource-saving method for manufacturing the connecting bridge device can be provided.

[0022] The present invention is illustrated in two embodiments in the following drawings. Brief explanation of the drawing

[0023] FIG. 1 is a schematic diagram of a vehicle according to the present invention. FIG. 2 is a schematic perspective view of a connection system according to the present invention of a vehicle according to the present invention of FIG. 1. FIG. 3 is a schematic perspective view of a connection bridge device according to the present invention of the connection system according to the present invention of FIG. 2. FIG. 4 is a schematic flowchart of the manufacturing method according to the present invention of the connecting bridge device according to the present invention of FIG. 3. FIG. 5 is a schematic perspective view of an alternative connection system according to the present invention. FIG. 6 is a schematic perspective view of an alternative connection bridge device according to the present invention of the alternative connection system according to the present invention of FIG. 5. Specific details for implementing the invention

[0024] FIG. 1 is a schematic diagram of a vehicle (23a), particularly a commercial vehicle. The vehicle (23a) is configured as a land vehicle, for example, as a cargo vehicle. The vehicle (23a) includes a connection system (18a). The connection system (18a) includes a multi-point link (2a), particularly a four-point link, particularly a multi-membered axle (3a), and a connection bridge device (1a) (see FIG. 2).

[0025] FIG. 2 is a schematic perspective view of a connection system (18a) of a vehicle (23a) of FIG. 1. A connection bridge device (1a) is provided to connect a multi-point link (2a) to a multi-member type axle (3a). In this embodiment, the multi-point link (2a) is formed as a four-point link. The axle (3a) has two connection units (20a, 21a) disposed separately from the central portion (19a) of the axle (3a) to secure the connection bridge device (1a). Each connection unit (20a, 21a) is disposed on each axle body (24a, 25a) formed differently from the central portion (19a). The axle bodies (24a, 25a) formed differently from the central portion (19a), in particular the connection units (20a, 21a), are arranged symmetrically along the axle (3a) with respect to the central portion (19a). The connecting unit (20a, 21a) forms a screw connection point for screw-fixing the connecting bridge device (1a) to the shaft body (24a, 25a) which is formed differently from the central part.

[0026] The axle (3a) is configured as an electric axle. The central portion (19a) includes a drive unit (22a). The central portion (19a) forms a drive unit housing for accommodating the drive unit (22a) at least partially. The drive unit (22a) is positioned inside the drive unit housing. The drive unit (22a) includes, for example, one or more electric motors, a differential, and, in some cases, a gear stage (not shown herein). The central portion (19a) is positioned along the axle (3a) in the center between two shaft body (24a, 25a) formed differently from this central portion (19a) and is coupled with the shaft body (24a, 25a). The central portion (19a) is formed less robustly, particularly more weakly, than the shaft body (24a, 25a) formed differently from this central portion (19a).

[0027] The multi-point link (2a) is connected to the body frame (26a) of the vehicle (23a) at two points in an articulated manner. The multi-point link (2a) is joined to the connecting bridge device (1a) at two additional points in an articulated manner. The connecting bridge device (1a) is formed as a connecting bridge, specifically as an axle bridge. The connecting bridge device (1a) is provided to indirectly connect the multi-point link (2a) to the axle (3a). The connecting bridge device (1a) serves as a connecting piece between the multi-point link (2a) and the axle (3a). The connecting bridge device (1a) is provided to at least partially absorb the force and / or torque transmitted between the axle (3a) and the multi-point link (2a), and to direct at least partially from the central portion (19a) to at least one axle body (24a, 25a) configured particularly differently from said central portion (19a).

[0028] FIG. 3 is a schematic perspective view of a connecting bridge device (1a) of the connecting system (18a) of FIG. 2. This connecting bridge device (1a) includes at least one main body (4a) for receiving and inducing force and / or torque transmitted between an axle (3a) and a multi-point link (2a). The connecting bridge device (1a) includes two axle fixing units (5a, 6a) for fixing the main body (4a) to the axle (3a). The connecting bridge device (1a) includes two link connecting units (8a, 9a) that intersect the main extension surface (7a) of the main body (4a) to connect the main body (4a) to the multi-point link (2a).

[0029] The axle fixing unit (5a, 6a) is provided to fix the main body (4a) to two shaft bodies (24a, 25a) formed differently from the central part (19a), particularly to the connecting unit (20a, 21a). The main body is formed as a metal part, particularly as a cast part. The axle fixing unit (5a, 6a) and at least one link connecting unit (8a, 9a) are formed integrally with the main body (4a). The connecting bridge device (1a) is formed as an integral part. The axle fixing unit (5a, 6a) and the link connecting unit (8a, 9a) include a fixing duct (27a, 28a) for receiving a fixing means. The fixing duct (27a, 28a) extends through the main body (4a) and is particularly defined by the main body (4a). The link coupling unit (8a, 9a) is positioned at least partially within the main extension plane (7a) of the main body (4a) for efficient force absorption and / or torque absorption, particularly by the main body (4a). The link coupling unit (8a, 9a) extends at least partially from two faces (29a, 30a) facing opposite directions of the main extension plane (7a) of the main body (4a).

[0030] Link coupling units (8a, 9a) are provided to connect the main body (4a) to at least two coupling units (10a, 11a) of the multipoint link (2a). The coupling units (10a, 11a) of the multipoint link (2a) are formed as connecting claws, particularly as molecular joints (see FIG. 2). The link coupling units (8a, 9a) are positioned in two outer regions (31a, 32a) of the connecting bridge device (1a), and in particular, one link coupling unit (8a, 9a) is positioned in each outer region (31a, 32a). The outer regions (31a, 32a) form poles facing opposite each other along the main extension direction (33a) of the connecting bridge device (1a). The axle fixing units (5a, 6a) are positioned in the outer regions (31a, 32a), and in particular, one axle fixing unit (5a, 6a) is positioned in each outer region (31a, 32a).

[0031] The main body (4a) extends longer than the link coupling units (8a, 9a) perpendicular to the main extension plane (7a) in the central region (12a) facing away from the axle fixing units (5a, 6a). In the central region (12a), the main body (4a) extends longer than the link coupling units (8a, 9a) perpendicular to the main extension plane (7a) on both sides (29a, 30a) of the main extension plane (7a). The main body (4a) has a maximum transverse extension (13a) perpendicular to the main extension plane (7a) in the central region (12a). The main body (4a) has a larger transverse extension (13a), particularly a greater part thickness, perpendicular to the main extension plane (7a) in the central region (12a) than in the outer regions (31a, 32a).

[0032] The main body (4a) is formed as a hollow profile part at least partially. The main body (4a) is formed as a hollow profile part with one side open. The main body (4a) is formed to be at least partially open at the side (34a) intersecting the main extension surface (7a). The main body (4a) is formed to be at least partially open at the side (34a) opposite to the link coupling unit (8a, 9a). The main body (4a) is formed to be open at the central region (12a).

[0033] The main body (4a) has at least one reinforcing rib (14a, 15a, 16a, 17a). In this embodiment, the main body (4a) has, for example, four reinforcing ribs (14a, 15a, 16a, 17a). The reinforcing ribs (14a, 15a, 16a, 17a) have a plane that intersects with the main extension plane (7a). The reinforcing ribs (14a, 15a, 16a, 17a) extend perpendicularly and parallel to the main extension plane (7a). The reinforcing ribs (14a, 15a, 16a, 17a) support the outer surface regions (35a, 36a) of the main body (4a) that are spaced apart from each other laterally with respect to the main extension plane (7a). The main body (4a) having reinforcing ribs (14a, 15a, 16a, 17a) is formed by a cast structure with one side open, particularly in the central region (12a). The first reinforcing rib (14a) and the second reinforcing rib (15a) are arranged symmetrically with respect to each other along the main extension direction (33a). The third reinforcing rib (16a) and the fourth reinforcing rib (17a) are arranged symmetrically with respect to each other along the main extension direction (33a).

[0034] The main body (4a) has at least two reinforcing ribs (14a, 15a), for example, a first reinforcing rib (14a) and a second reinforcing rib (15a) that form an undercut together in this embodiment. The two reinforcing ribs (14a, 15a) define a central cavity in the central region (12a) at least partially. In this embodiment, the two reinforcing ribs (14a, 15a) form an angle of, for example, about 85° with respect to each other when viewed from the main extension plane (7a). The third reinforcing rib (16a) and the fourth reinforcing rib (17a) extend parallel to each other when viewed from the main extension plane (7a).

[0035] FIG. 4 is a schematic flowchart of a method for manufacturing a connecting bridge device (1a) of FIG. 3. In at least one method step (37a), the connecting bridge device (1a) is cast. In at least one additional method step (38a), at least one casting core is destroyed. In one alternative embodiment, the casting core may be omitted during casting.

[0036] Another embodiment of the present invention is illustrated in FIGS. 5 and 6. With respect to the configuration of components having the same name, particularly with respect to components having the same reference numeral, reference is made to the embodiments of FIGS. 1 through 4. To distinguish the embodiments, the letter 'a' is appended after the reference numeral of the embodiments of FIGS. 1 through 4, and the letter 'b' is appended after the reference numeral of the embodiments of FIGS. 5 and 6.

[0037] FIG. 5 is a schematic perspective view of an alternative connection system (18b). The connection system (18b) includes a multi-point link (2b), particularly a three-point link, particularly a multi-member type axle (3b), and a connecting bridge device (1b). The axle (3b) is substantially similar to the axle (3a) shown in the preceding embodiment. The multi-point link (2b) is formed as a three-point link, unlike the multi-point link (2a) of the preceding embodiment which is formed as a four-point link. To enable the three-point link to be connected to the axle (3b), the connecting bridge device (1b) is configured differently from the connecting bridge device (1a) of the preceding embodiment. The multi-point link (2b) is connected to the vehicle body frame (26b) in an articulated manner at two points. The multi-point link (2b) is joined to the connecting bridge device (1b) in an articulated manner at one additional point.

[0038] FIG. 6 is a schematic perspective view of a connection bridge device (1b) of an alternative connection system (18b) of FIG. 5. The connection bridge device (1b) includes a link coupling unit (8b) to connect the main body (4b) of the connection bridge device (1b) to a multi-point link (2b). The fixed duct (28b) of the link coupling unit (8b) is rotated 90° relative to the fixed duct (28a) of the link coupling unit (8a, 9a) of the prior embodiment.

[0039] The main body (4b) is formed as a hollow profile part at least partially. The main body (4b) is formed as a hollow profile part with several sides, particularly two sides, open. The main body (4b) is formed to be open on two sides (39b, 40b) that are positioned on different sides (29b, 30b) of the main extension surface (7b) and do not intersect with the main extension surface (7b) of the main body (4b). Explanation of the symbols

[0040] 1. Connecting bridge device 2 multi-point link 3 axles 4 main unit 5 axle fixing unit 6 axle fixing unit 7 weeks extension area 8-link coupling unit 9-link coupling unit 10 combined units 11 combined units 12 central area 13 Transverse extension 14 reinforcing ribs 15 reinforcing ribs 16 reinforcing ribs 17 reinforcing ribs 18 connection systems 19 Central 20 connection units 21 connection unit 22 drive units 23 vehicles 24 shaft body 25 Shaft body 26 chassis frame 27 Fixed duct 28 fixed ducts Page 29 Page 30 31 outer region 32 outer area 33-week extension direction Page 34 35 External area 36 External area 37 Method Steps 38 Method Steps Page 39 Page 40

Claims

Claim 1 At least one multi-membered axle (3a; 3b); A connection system (18) comprising at least one connection bridge device (1a; 1b) for connecting a multi-point link (2a; 2b) to a multi-member type axle (3a; 3b); wherein the connection bridge device (1a; 1b) comprises at least one main body (4a; 4b) for receiving and inducing a force or torque transmitted between the axle (3a; 3b) and the multi-point link (2a; 2b), at least one axle fixing unit (5a; 5b, 6a; 6b) for fixing the main body (4a; 4b) to the axle (3a; 3b), and at least one link coupling unit (8a; 8b, 9a) that intersects the main extension surface (7a; 7b) of the main body (4a; 4b) to connect the main body (4a; 4b) to the multi-point link (2a; 2b); and the axle (3a; 3b) is the connection bridge A connection system (18) having two connection units (20a; 20b, 21a; 21b) disposed separately from the central portion (19a; 19b) of the axle (3a; 3b) to fix the device (1a; 1b), wherein the central portion (19a; 19b) forms at least partially a drive unit housing to accommodate a drive unit (22a; 22b), and each connection unit (20a; 20b, 21a; 21b) is disposed on each shaft body (24a, 25a; 24b, 25b) formed differently from the central portion (19a; 19b). Claim 2 A connection system (18) comprising at least two link coupling units (8a, 9a) for coupling the main body (4a) to at least two coupling units (10a, 11a) of the multipoint link (2a) in claim 1. Claim 3 A connection system (18) according to claim 1 or 2, wherein the main body (4a; 4b) extends longer than at least one link coupling unit (8a; 8b, 9a) perpendicular to the main extension plane (7a; 7b) in a central region (12a; 12b) facing away from at least one axle fixing unit (5a; 5b, 6a; 6b). Claim 4 A connection system (18) according to claim 1 or 2, wherein the main body (4a; 4b) has a maximum transverse extension (13a; 13b) perpendicular to the main extension plane (7a; 7b) in a central region (12a; 12b) facing away from at least one axle fixing unit (5a; 5b, 6a; 6b). Claim 5 A connection system (18) according to claim 1 or 2, wherein the main body (4a; 4b) is formed at least partially as a hollow profile part. Claim 6 In claim 5, the main body (4a) is a connecting system (18) having at least one reinforcing rib (14a, 15a, 16a, 17a). Claim 7 In claim 6, the main body (4a) has at least two reinforcing ribs (14a, 15a) that together form one undercut portion, forming a connecting system (18). Claim 8 delete Claim 9 In claim 1, the axle (3a; 3b) is formed as an electric axle, and the central portion (19a; 19b) includes at least one drive unit (22a; 22b), the connection system (18). Claim 10 A connection system (18) comprising at least one multi-point link (2a; 2b) in claim 1. Claim 11 delete Claim 12 delete

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