Safety arrangement and vehicle with a safety arrangement
The inflatable safety wall with air chambers and sound-absorbing materials addresses the issue of noise and discomfort in vehicles by providing acoustic and thermal isolation between cargo and passenger compartments, improving comfort through automated noise reduction.
Patent Information
- Application Number
- DE102024124407
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2026-03-05
AI Technical Summary
Existing vehicles face issues with uncontrolled cargo movement causing noise and discomfort due to rattling or squeaking during transport, and there is a need for effective acoustic isolation between the cargo and passenger compartments.
A safety device with an inflatable safety wall having air chambers that can be filled with air to separate the compartments, featuring sound-absorbing materials and automated noise detection and control for acoustic and thermal decoupling.
The solution effectively reduces noise transmission between compartments, enhancing passenger comfort by isolating the cargo area acoustically and thermally, with automated noise-responsive operation.
Smart Images

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Abstract
Description
[0001] The invention relates to a safety device for at least temporarily separating two spaces, comprising a safety wall which can be moved into a mounted state and a stowed state. The invention further relates to a vehicle with a safety device.
[0002] Cargo nets are used in various vehicles to separate the cargo area from the passenger compartment. In a fully loaded vehicle, these nets are designed to protect the front of the vehicle and the passenger compartment during braking maneuvers. In particular, the cargo net can prevent uncontrolled acceleration of the transported goods in the cargo area or trunk.
[0003] If the vehicle is loaded with various items as cargo, rattling or squeaking noises may occur during the journey, which can impair the comfort of the driver and passengers.
[0004] US 5,833,413 A describes an inflatable cargo closure for a truck or trailer to secure the cargo in place.
[0005] DE 10 2021 001 087 A1 discloses a securing device for securing cargo on a vehicle. An air bag is used to raise and lower the securing device.
[0006] German patent application DE 197 04268 A1 discloses a vehicle with a rear trunk. The trunk is separated from the passenger compartment by a partition. For acoustic insulation, the partition is connected to the trunk lining via bellows.
[0007] The object of the present invention is to provide a safety arrangement and a vehicle by which a cargo space can be acoustically isolated from a passenger compartment of a vehicle.
[0008] According to the invention, this problem is solved by a safety device having the features of claim 1 and a vehicle having the features of claim 10. Advantageous embodiments and further developments are described in the dependent claims.
[0009] According to one aspect of the invention, a safety arrangement is provided for at least temporarily separating two rooms. The safety arrangement comprises a safety wall which can be moved into a mounted state and a stowed state, wherein the safety wall in the mounted state is configured to separate the rooms.
[0010] The safety wall has at least one air chamber which can be filled with air at least temporarily via a valve connection.
[0011] When the safety barrier is stowed, the compartments are connected. Moving the barrier into its installed position divides the space into two separate compartments. These compartments could, for example, be a cargo area and a passenger compartment of a vehicle. However, the safety arrangement is not limited to vehicles and can be used in various other scenarios.
[0012] According to another aspect of the invention, a vehicle is provided which has at least one safety arrangement according to the invention.
[0013] The at least one air chamber of the safety wall, filled with air or another gas, enables acoustic and thermal decoupling of the rooms. The safety wall can therefore be designed as an inflatable safety net, which can be constructed in one or more sections. In a multi-section design, the safety wall can have several air chambers and / or be divided into several sections or segments.
[0014] In one embodiment, the safety wall is at least partially double-walled, with the at least one air chamber formed between two walls of the double-walled safety wall. This allows the at least one air chamber to be manufactured in a particularly simple manner.
[0015] When installed, the barrier wall can be fully extended or unrolled, for example, in height. This allows the air chamber to be filled after the installation is complete, providing thermal and acoustic protection for at least one room.
[0016] In another embodiment, the barrier wall is provided with a sound-absorbing material on at least one side or consists of a sound-absorbing material. The sound-absorbing material can be, for example, a foam, acoustic foam, acoustic fleece, or the like. This can improve the sound insulation effect of the barrier wall.
[0017] According to a further embodiment, the sound-absorbing material and / or a wall of the barrier wall has a surface structure in the form of bumps, pyramids, or inclined planes. This measure enables the disruption and interference of sound wave propagation, thereby improving the sound insulation provided by the barrier wall.
[0018] According to a further embodiment, the at least one air chamber in the assembled state of the safety wall can be filled by a manually operated air pump, an electric air pump, or via a vehicle-side pneumatic connection. The at least one air chamber can thus be flexibly filled with gas from different sources.
[0019] Once the safety barrier is unrolled or extended and thus in a mounted position, the at least one air chamber can be inflated using a compressor located in the vehicle. This method is particularly easy to implement in vehicles with air suspension or in commercial vehicles with an existing pneumatic system.
[0020] In an alternative design, an electric air pump can be activated to fill the air chamber.
[0021] In an alternative or additional design, the air chamber can be manually filled with air using a hand pump. This makes filling and emptying the air chamber particularly easy, especially in emergencies or in case of a defect.
[0022] According to a further embodiment, the at least one air chamber can be automatically emptied by moving the safety wall into a stowed state. This measure enables automatic emptying of the air chamber when the safety wall is moved into the stowed state. This minimizes the storage space required for the stowed safety wall.
[0023] According to another embodiment, the at least one air chamber can be filled with air after the safety wall has been moved into a mounted position. In an automatic version, the safety wall can fill itself and thus dampen disturbing noises from the rear passenger area.
[0024] According to a further embodiment, the safety device comprises at least one microphone and at least one control unit. The control unit is configured to receive and evaluate measurement data from the at least one microphone. If a threshold value of the received measurement data is exceeded, the control unit can generate control commands to fill the at least one air chamber of the safety device. This measure enables automated filling of the safety device when disruptive noises occur. Depending on the design, filling can also occur automatically after the safety device has been installed.
[0025] The control unit can send control commands to an air pump or compressor, which is then operated. When an operating pressure is reached in at least one air chamber, the control unit can issue commands to switch off the air pump or compressor. For this purpose, the air pressure in the air chamber can be measured and evaluated by the control unit.
[0026] A control and display unit can be used to make settings for filling the air chamber and to display the status of the air chamber.
[0027] In another embodiment, the partition wall is designed to physically and acoustically separate a cargo area from a passenger compartment. This suppresses noise generated in the cargo area of a vehicle and improves passenger comfort. In addition to securing the cargo area, the partition can also provide an increased level of comfort as an additional function.
[0028] The invention is schematically illustrated with reference to embodiments in the drawings and is further described with reference to the drawings. It shows: Fig. 1 a vehicle according to an embodiment of the invention. Fig. 2 a safety arrangement in an assembled state according to an embodiment according to the invention. Fig. 3 a safety arrangement in an assembled state according to a further embodiment according to the invention.
[0029] Elements and components with identical or similar constructive or functional characteristics are provided with the same reference symbols across all figures.
[0030] Fig. Figure 1 shows a vehicle 100 according to an embodiment of the invention. The vehicle 100 is designed as a passenger car and has a vehicle interior 110. A safety device 10 is arranged in the vehicle interior 110, which can separate or divide the vehicle interior 110.
[0031] The safety arrangement 10 serves to at least temporarily separate two rooms 111, 112, which in the illustrated embodiment are designed as a passenger compartment 111 and as a cargo compartment 112.
[0032] The securing arrangement 10 has a securing wall 11 which can be moved into a mounted and a stowed state. In the mounted state, the securing wall 11 is designed to divide the vehicle interior 110 into a passenger compartment 111 and a cargo compartment 112. In the illustrations shown Fig. Figures 1 to 3 show the safety walls 11 in a mounted or extended state.
[0033] The safety wall 11 has at least one air chamber 12 which can be filled with air at least temporarily via a valve connection 13.
[0034] When the safety wall 11 is unrolled or extended and thus in a mounted state, the at least one air chamber 12 can be inflated by a compressor 20 located in the vehicle 100. The compressor 20 is connected to the valve connection 13 and can be controlled by a control unit 30.
[0035] The control unit 30 is connected to sensors 31 and 32 via data transmission to control the compressor 20. A first sensor 31 can, for example, be a microphone, and a second sensor 32 can be a pressure sensor. If the noise level in the passenger compartment 111 increases, the control unit 30 can activate the compressor 20 to fill the air chamber 12 and reduce the noise level in the passenger compartment 111.
[0036] The second sensor 32, designed as a pressure sensor, can initiate an automatic shutdown of the compressor 20 when a pressure limit is reached in the air chamber 12.
[0037] Fig. Figure 2 shows a locking arrangement 10 in an assembled state according to an embodiment of the invention. In the illustrated embodiment, the locking wall 11 is at least partially double-walled, with at least one air chamber 12 formed between two walls 14, 15 of the double-walled locking wall 11.
[0038] In its assembled state, the safety wall 11 is fully extended in the vertical direction H. In its stowed state, the safety wall 11 is rolled onto a roller 16, with the valve connection 13 being opened and the air chamber 12 being emptied during the rolling process.
[0039] Fig. Figure 3 shows a safety arrangement 10 in an assembled state according to a further embodiment of the invention. By way of example, the safety wall 11 is provided on one side with a sound-absorbing material 17.
[0040] In the illustrated embodiment, the sound-absorbing material 17 is designed as a foam and has a surface structure in the form of bumps or pyramids. This allows sound waves generated in the cargo space 112 to be broken up and prevented from propagating to the passenger compartment 112. REFERENCE MARK LIST: 100 vehicles 110 Vehicle interior 111 Passenger compartment 112 cargo space 10 Security arrangement 11 Security wall 12 air chambers 13 Valve connection 14 first wall of the safety wall 15 second wall of the safety wall 16 rolls 17 sound-absorbing material 20 Compressor 30 Control unit 31 first sensor 32 second sensor QUOTES INCLUDED IN THE DESCRIPTION
[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0000] US 5,833,413 A
[0004] DE 10 2021 001 087 A1
[0005] DE 197 04268 A1
[0006]
Claims
[1] A safety arrangement (10) for at least temporarily separating two rooms (111, 112), comprising a safety wall (11) which can be moved into a mounted state and into a stowed state, wherein the safety wall (11) in the mounted state is designed to separate the rooms (111, 112) from each other, wherein the safety wall (11) has at least one air chamber (12) which can be filled with air at least temporarily via a valve connection (13). [2] Safety arrangement according to claim 1, wherein the safety wall (11) is at least partially double-walled, wherein the at least one air chamber (11) is formed between two walls (14, 15) of the double-walled safety wall (11). [3] Security arrangement according to claim 1 or 2, wherein the security wall (11) is provided on at least one side with a sound-absorbing material (17) or consists of a sound-absorbing material (17). [4] Security arrangement according to claim 3, wherein the sound-absorbing material (17) and / or a wall (14, 15) of the security wall (11) has a surface structure in the form of bumps, pyramids or inclined planes. [5] Safety arrangement according to one of claims 1 to 4, wherein the at least one air chamber (12) in a mounted state of the safety wall (11) can be filled by a manually operated air pump or an electric air pump or via a vehicle-side pneumatic connection. [6] Safety arrangement according to one of claims 1 to 5, wherein the at least one air chamber (12) can be automatically emptied by moving the safety wall (11) into a stowed state. [7] Safety arrangement according to one of claims 1 to 6, wherein the at least one air chamber (12) can be filled with air after the safety wall (11) has been moved into a mounted state. [8] Security arrangement according to claim 7, wherein the security arrangement (10) comprises at least one microphone (31) and at least one control unit (30), wherein the control unit (30) is configured to receive and evaluate measurement data from the at least one microphone (31), wherein, if a limit value of the received measurement data is exceeded, control commands for filling the at least one air chamber (12) of the security wall (11) can be generated by the control unit (30). [9] Security arrangement according to one of claims 1 to 8, wherein the security wall (11) is configured to separate a space designed as a cargo space (112) from a space designed as a passenger space (111) both locally and acoustically. [10] Vehicle (100) comprising at least one safety arrangement (10) according to any one of the preceding claims.
Citation Information
Patent Citations
Securing device for securing cargo in a passenger car
DE102021001087A1
passenger cars with a rear trunk
DE19704268A1
load securing system
DE29505630U1
Inflatable cargo load lock
US5833413A
Cited By
Partition curtain for the vehicle interior and procedures
DE102025140887A1