CABIN STORAGE SYSTEM AND CABIN STORAGE
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-09-26
- Publication Date
- 2026-03-12
AI Technical Summary
Vehicles designed for off-road use face issues with dirt ingress leading to soiling, noise, and impaired suspension travel due to dirt accumulation in movable mountings, which can cause tipping or rollover, necessitating improved cabin mounting systems that prevent dirt accumulation and enhance operator safety.
A one-piece chassis mount with a corrugated design deflects dirt particles using a bevel angle and active cabin suspension, combined with a position sensor and hydraulic actuator for real-time adjustment, ensuring proper functioning and safety.
The solution effectively prevents dirt accumulation, reduces noise, and enhances operator safety by maintaining cabin stability and reducing maintenance needs, while ensuring smooth vehicle operation.
Description
[0001] The present invention relates to a cabin mounting system and a cabin mounting for vehicles, which enables the cabin of a vehicle to be attached to or on the chassis. Document DE19961670 A1 shows the preamble of the independent claim.
[0002] Vehicles specifically designed for off-road use are employed in demanding working environments. These vehicles can include construction vehicles, such as tracked vehicles, excavation vehicles, forestry vehicles for processing timber, or agricultural vehicles.
[0003] The operating location is usually undeveloped terrain with existing inclines. Especially on slopes and when operating on soil or scree, the vehicle can tilt sharply, potentially leading to tipping or rollover in the event of an accident. In this situation, the operator must be protected as much as possible from injuries, both from potential collisions within the cab and from being ejected. Additionally, it is necessary to secure the cab to the vehicle in such a way that it cannot break away if the vehicle tips over, thus maintaining a safety cell for the operator even in the event of a rollover.
[0004] Due to the vehicle's use in open terrain and the associated working environment, dirt ingress on and inside the vehicle is unavoidable. This leads to soiling beneath the vehicle cab, which can impair the suspension travel, especially in cabs with movable mountings. Additionally, the dirt ingress can cause noise, as existing gaps between moving components of the cab mounting can become filled with dirt particles. The object of the invention is to avoid these problems. This object is achieved by the invention according to the main claim. Further embodiments of the invention are described in the dependent claims.
[0005] The invention relates to a cabin mounting comprising a chassis bracket, comprising a chassis plate with a central area designed to be attached to a vehicle chassis, a lower end area designed to attach a suspension element, an upper end area with an opening designed to connect to an upper bearing plate, a cabin bracket comprising a cabin plate designed to be attached to a vehicle cabin, an upper bearing plate attached to the cabin plate with a U-shaped structure designed to be movably held in the opening of the chassis plate so that the chassis bracket and the cabin bracket are movable relative to each other, wherein the chassis bracket is formed in one piece in such a way that any dirt that comes into contact with it is wiped off.
[0006] The chassis mount features a corrugated shape or similar design to alter the transition angle between the middle and upper sections, creating a bevel that deflects dirt particles towards gravity. This prevents or reduces dirt accumulation. Simultaneously, it increases the degree of self-cleaning in the event of rain or during vehicle maintenance, thus reducing maintenance requirements. By preventing dirt accumulation, the proper functioning of the cabin mounting is ensured, as is the avoidance of noise caused by dirt particles adhering to the chassis. The one-piece construction of the chassis mount reduces the number of parts and manufacturing costs.
[0007] In further training, the development can be planned in an area between the middle range and the lower end range.
[0008] The greatest dirt accumulation occurs precisely in this transition between the middle and lower areas, as this is a horizontal surface in its installed position. This accumulation can be specifically prevented or reduced.
[0009] In one version, the shape can be provided on the top side of the chassis mount.
[0010] The bulge towards the top of the chassis mount in the installed position reduces the usual 90-degree transition angle in this region. This prevents the large-scale accumulation of dirt particles and improves cleaning by rain or during maintenance using a high-pressure cleaner or similar equipment.
[0011] In a further training program, a hydraulic actuator can be provided between the upper bearing plate and the chassis plate.
[0012] The hydraulic actuator enables active cabin suspension in the vehicle, as well as damping of vibrations from the vehicle chassis. Using data from a position or tilt sensor, the active cabin suspension can increase operator comfort and safety during vehicle control.
[0013] In a further design, a position sensor can be provided at the upper end of the chassis mount, which interacts with a linkage to guide the upper and lower bearing plates.
[0014] The position sensor, which interacts with the linkage that acts as a bearing between the lower and upper bearing plates, detects the vertical distance between these two plates. The position sensor can be either an angle sensor or a distance sensor, as long as a distance can be calculated from the measured data. This calculated distance enables active cabin suspension. This suspension actively controls existing hydraulic actuators, thus providing regulation. Furthermore, a safety-relevant condition can be detected, allowing the hydraulic actuators to be actively moved to a specific position that ensures maximum operator safety.
[0015] The invention also relates to a cabin mounting system comprising at least two cabin mountings according to the preceding embodiments, wherein a Panhard rod is movably held between the cabin plate of one cabin mounting and the chassis mount of the further cabin mounting.
[0016] The invention and its further developments are explained using the characters. This shows Figure 1 a detailed view of a design; Figure 2 a version in an installed state in a vehicle; Figure 3 another version in an installed state; Figure 4 a version on an axle module of a vehicle.
[0017] In Fig. 1The cabin mounting 10 is shown in an isometric view. The cabin mounting 10 has a two-part form. The lower part represents the chassis mount 20, and the upper part the cabin mount 30. The chassis mount 20 includes a chassis plate 21, which is designed to be attached to a part of the vehicle, preferably a component of the chassis, by means of screws or welding. The chassis plate 21 has a lower section for attachment to a vehicle, a middle section with a horizontal extension, and an upper section for movable attachment to the upper bearing plate 32 of the cabin mount 30.
[0018] The upper part of the chassis plate 21 has an opening 33 or recess in the center, which serves to receive part of the upper bearing plate 32. The opening 33 can be milled, drilled or punched.
[0019] The cabin mount 30 has a cabin plate 31 designed to be attached to a component of the cabin. For this purpose, the cabin plate 31 may have holes for screws, but it can also alternatively be welded. An upper bearing plate 32 is rigidly connected to the cabin plate 31 in a central area, predominantly vertically. The upper bearing plate 32 has two parallel webs attached to the cabin plate 31 at a fixed distance and has two free ends. At one end of the upper bearing plate 32, the free ends are connected to each other by a bolt, screw, or metal rod. The bolt sits within the opening 33 of the chassis plate 21 and ensures a movable connection between the upper bearing plate 32, and thus also between the chassis mount 20 and the cabin mount 30.The geometric height and width of the opening 33 determine the relative mobility of the cabin mount 30 and the chassis mount 20.
[0020] The chassis plate 21 has a projection 40 at the transition from the lower to the middle area in its installed position, which reduces the transition angle. The shape of the projection 40 is formed as a bead or bulge at the bending radius between the upper and middle areas. However, the projection 40 can also be a deformation across the entire width of the chassis plate 21, a 45-degree angle, or consist of several beads or bulges. This shape ensures that any dirt accumulating is channeled away from the chassis plate 21 and the transition radius by the force of gravity, preventing dirt accumulation. This prevents the accumulation of dirt particles and ensures that the movement of the chassis plate 21 and the upper bearing plate 32 is not impaired. The projection 40 can form an angle of 10 to 80 degrees with the horizontal plane.Furthermore, in conjunction with the action of water, for example through rain or active cleaning of the vehicle, the removal of dirt particles at the transition point can be simplified, thereby reducing maintenance effort.
[0021] The chassis and cabin mounts 20, 30 are movably connected to each other by the linkage 60. The linkage 60 primarily serves to detect the distance between the chassis and cabin mounts 20, 30. For this purpose, a position sensor 50 in the form of an angle sensor is attached to the chassis plate 21, which detects the angle of deflection of the linkage 60. The distance can be calculated or directly measured by means of an electrical signal output from the sensor 50, which can then be processed by a control unit. This distance can be used to control active cabin damping.
[0022] Fig. 2Figure 1 shows the cabin mount 10 in an installed position in the vehicle. The cabin mount 10 is attached to a chassis area of the vehicle by means of the chassis bracket 20. This can be done by means of screws, rivets, welding, or the like. The cabin mount 10 is attached to the underside of the cabin by means of the cabin bracket 30 and the cabin plate 31. This connection can also be made by means of screws, rivets, or welding. A hydraulic actuator 70 is attached to one side of the cabin mount 10. This actuator serves to actively adjust the cabin mount 10, so that the distance between the cabin and the chassis bracket 20 can be adjusted, or active damping of the cabin can be enabled. The hydraulic actuator is attached to the chassis bracket 20 and to the cabin bracket 30.
[0023] In this application, the cabin moves differently relative to the vehicle chassis. This movement results in a relative movement of the upper bearing plate 32 and the chassis plate 21. This movement can be detected by means of the linkage 60 and the position sensor 50, and the hydraulic actuator 70s can be actively controlled from this.
[0024] The upper bearing plate 32 is connected to the chassis plate 21 by a web located between both ends of the upper bearing plate 32. It is also possible for only the chassis plate 21 to have two free ends. In the event of a vehicle rollover or a strong impact on the cabin, the upper bearing plate 32 maintains the connection between the cabin and the vehicle, thus preventing it from being rolled over or becoming detached.
[0025] Fig. 3Figure 10 shows another view of the cabin mounting. The formwork 40 is shown here in a further side view. The height of the formwork 40 can be variably set, which can change the angle between the top of the formwork 40 and the horizontal in the installed position.
[0026] The position sensor 50, mounted on the chassis plate 21, is connected to a control unit (not shown). This control unit detects and calculates the cabin's movement, enabling active control of the hydraulic actuator 70. The sensor 50 can be mounted on the chassis plate 21. If the installation situation allows, it can also be mounted on the upper bearing plate 32. The sensor 50 can also be a linear position sensor. Alternatively, the hydraulic actuator 70 can have its own position measurement capability, thus eliminating the need for an additional position sensor 50.
[0027] Figure 4 Figure 1 shows the cabin mounting 10, which is attached to a section of the axle housing of a vehicle. In addition to the features described above, the cabin mounting 10 includes a Panhard rod 80, which connects one assembly of the cabin mounting 10 to another on the opposite side of the cabin. The Panhard rod 80 limits the degrees of freedom and prevents lateral movement of the cabin structure, which is attached to the cabin plate 31. This allows the cabin mounting 10 according to the invention to be integrated into a vehicle as a cabin mounting system. The system is adaptable to any cabin dimensions and enables its use in a wide range of vehicles for various work tasks.
[0028] The cabin mounting system can have at least one position sensor 50 on one side of the cabin mounting, however, it is also possible to mount the position sensor 50 on both sides, so that an unequal height on both sides of the cabin mounting 10 can be detected.
[0029] Particularly in the area of vehicle axles, significant dirt accumulation and build-up occur. The cabin mounting 10 prevents this dirt build-up in the critical area of the moving components. Typically, this dirt accumulation can lead to jamming of the moving parts, especially the cabin mounting 10, which then prevents or severely restricts its function. Furthermore, the movement produces noises that are perceived as disturbing. The cabin mounting 10 and the system according to the invention ensure proper functioning.
Claims
1. Cab mounting having a chassis holder (20) having a chassis plate (22) having a central region, designed to be fastened to a chassis of a vehicle, a lower end region, designed to fasten a suspension element, an upper end region having an opening (33), designed for connecting to an upper bearing plate (32), a cab holder (30) having a cab plate (31), designed for fastening to a vehicle cab, an upper bearing plate (32) which is fastened to the cab plate (31) and has a U-shaped structure, designed in order to be held movably in the opening (33) of the chassis plate (22), such that the chassis holder (20) and the cab holder (30) are movable relative to each other, characterized in that the chassis plate (22) has a moulding (40) in one piece at a transition from the central region to the upper end region in such a way that said moulding causes a reduction of the transition angle between the two regions, such that a ramp on which dirt particles are deflected in the direction of gravity is created.
2. Cab mounting according to Claim 1, characterized in that the moulding (40) is provided on an upper side of the chassis holder (20).
3. Cab mounting according to either of the preceding claims, characterized in that a hydraulic actuator (70) is provided between the upper bearing plate (32) and the chassis plate (22).
4. Cab mounting according to one of the preceding claims, characterized in that a position sensor (50) which interacts with a linkage (60) for guiding the upper and the lower bearing plate (32) is provided on the upper end region of the chassis holder (20).
5. Cab mounting system having at least two cab mountings (10) according to Claims 1 to 5, wherein a Panhard rod (80) is movably held between the cab plate (31) of one cab mounting (10) and the chassis holder (20) of the further cab mounting (10).