Brake-actuating device with electronic signal device and driving or pulling device having such a brake- actuating device and wheelchair having such a driving or pulling device

Abstract

The invention relates to a brake-actuating device (1) comprising a fastening device (3) which is designed to be able to be mounted at least in a rotationally fixed manner on a control device of the vehicle, in particular on a steering rod (20) , a switch device (5) comprising at least one controlling and transmitting element which is designed to control a brake system of the vehicle, and an in particular electrical signal device (31), wherein the switch device (5) is rotatably connected to the fastening device (3), and a rotation movement of the switch device (5) relative to the fastening device (3) controls the brake system and also the at least one electrical signal device (31). The invention also relates to a driving or pulling device having such a brake-actuating device (1) and to a wheelchair having such a driving or pulling device.

Description

[0001] Brake actuation device with electronic signaling device

[0002] Description

[0003] The present invention relates to a brake actuating device for a vehicle, comprising a fastening device designed to be mounted at least rotationally fixed to a control device of the vehicle, in particular to a handlebar, and a switching device comprising at least one control and transmission element designed to control a braking system of the vehicle. Furthermore, a drive or traction device with such a brake actuating device and a wheelchair with such a drive or traction device are provided.

[0004] In the state of the art, brake actuation devices are used on bicycles, scooters, wheelchairs, motorcycles, quads, electrically powered extensions of wheelchairs or other vehicles.

[0005] According to DE 10 2021 / 109 377 A1 or EP 3 326 600 B1, a manually controlled, in particular mechanical, braking system of a control device has, in particular, a device for actuating a braking device and comprises a connection between the braking device and the brake actuating device, so that when the braking device is actuated, the braking device is at least activated. Thus, the braking device has at least two states, in particular for activating and deactivating the braking function, wherein the change of states is achieved by different positions of a switching device of the braking device, which is why the switching device of the braking device typically has at least a first end state and a second end state.Braking systems often not only have the states of activation and deactivation of the braking device, but can also vary the strength of the braking function depending on the situation by adjusting the switching device's position. This is often achieved by manually changing the switching device's position.

[0006] The brake actuating device of a braking system according to DE 10 2021 / 109 377 A1 or EP 3 326 600 B1 is often attached to a control device, such as a handlebar, and comprises a fastening device for attaching the brake actuating device to a control device, and a switching device for actuating the brake actuating device. The switching device is often equipped with an automatic downshift function which, via a spring force, for example, causes the switching device to automatically move to a position in which the braking device is deactivated when the brake actuating device is not actuated. The braking device is usually attached to at least one wheel of the vehicle to be braked. The connection between the brake actuating device and the braking device can be implemented mechanically, for example via a cable, or hydraulically, electrically, or wirelessly.Manually operated brake actuation devices of braking systems are used, for example, on bicycles, scooters, wheelchairs, motorcycles and electrically powered extensions of wheelchairs.

[0007] DE 10 2021 / 109 377 A1 discloses a hydraulic device comprising a cylinder housing having a cylinder bore; and a reservoir configured to be in fluid communication with the cylinder bore, wherein the reservoir comprises a reservoir tank and a lid slidably mounted on the reservoir tank.

[0008] EP 3 326 600 B1 discloses a motorized wheelchair for disabled or elderly people, comprising a frame, a seat for the disabled driver, a handlebar, a motor with an accelerator, a group of wheels, and a wheel braking device, characterized in that it further comprises a bidirectional control device capable of connecting via interfaces to the motor accelerator and the wheel braking device, and a shell-shaped housing, the cylindrical inner chamber of which is closed by a lid, a handling lever pivotable from an idle position both clockwise and counterclockwise relative to the longitudinal axis of the cylindrical chamber, a first annular disc connected to the handling lever and having its center point on the axis, a second annular disc,which interacts with the first annular disc via an interface, is also housed in the chamber and whose center is located on the axis, a shaft on which the first and second annular discs are rotatably mounted and coupling means between the first and second annular discs, such that the second annular disc is rotated by the first annular disc only in one of the two directions of rotation of the handling lever.

[0009] For users who rely on such brake actuation devices, particularly people with physical or mental disabilities, it is of great importance that the braking device can be activated as quickly and easily as possible in emergency situations, regardless of the status of the drive control system or other controllable vehicle components. Rotating switching devices in opposite directions, for example to switch from drive to braking mode, is often too complex and requires excessive rotation distances. This results in valuable reaction time being lost. Actuating a braking device decoupled from a drive control system or other controllable vehicle components is also disadvantageous. The separate switching of vehicle components is particularly overwhelming for people with physical or mental disabilities, and not only in emergency situations, and thus represents a significant safety risk.Switching via a lever element is also often disadvantageous in such cases, namely when the functionality in terms of strength and control of the hand is impaired.

[0010] Therefore, the object of the present invention is to further develop the known brake actuation device in such a way that the disadvantages of the prior art are overcome. In particular, a simple, safe, and rapid activation of the braking function should be enabled independently of the drive control or other controllable vehicle components of a vehicle.

[0011] The object is achieved by at least one, in particular electrical, signaling device, wherein the switching device is rotatably connected to the fastening device and a rotational movement of the switching device relative to the fastening device controls the braking system and the at least one electrical signaling device.

[0012] Further preferred embodiments are described in the following examples.

[0013] In one example, the brake actuation device is characterized in that the at least one electrical signaling device is designed to be connectable to at least one controller of a drive unit of the vehicle via at least one cable or a radio connection and / or to transmit a signal upon actuation for switching off the drive function of the drive unit, wherein preferably the at least one electrical signaling device comprises a micro-switch.

[0014] Alternatively or additionally, the brake actuating device is characterized in that the fastening device has at least one space for the at least one electrical signaling device and / or at least one cable outlet for the at least one cable of the at least one electrical signaling device.

[0015] In a further embodiment, the brake actuation device is characterized in that the control and transmission element can be actuated mechanically, electrically, hydraulically, or pneumatically. The fastening device and the switching device can each have complementary recesses or elevations or guide elements for guiding the rotational movement of the switching device.

[0016] In a further example, the brake actuation device is characterized in that the control and transmission element comprises a Bowden cable, wherein the Bowden cable preferably cooperates with a Bowden cable receptacle and a Bowden cable guide.

[0017] Alternatively or additionally, the brake actuating device is characterized in that the fastening device comprises at least one Bowden cable input, and the switching device comprises the Bowden cable receptacle and the Bowden cable guide, wherein preferably the Bowden cable receptacle and / or the Bowden cable guide has at least one elevation which at least partially penetrates into a recess of the fastening device.

[0018] In a further embodiment, the brake actuating device is characterized in that the switching device has a stop, and the fastening device has a counterpart, in particular in the form of a stop, to the stop of the switching device, and / or an electronic rotation lock is provided, and / or the rotational movement of the switching device relative to the fastening device can be limited from a certain rotation.

[0019] In a further example, the brake actuating device is characterized by at least one feedback element for outputting at least one visual, acoustic and / or haptic signal, preferably comprising a haptic feedback element, in order to provide haptic feedback, in particular in the form of vibrations, on states of the brake actuating device.

[0020] Alternatively or additionally, the brake actuating device is characterized in that the switching device is connected to the fastening device via a sliding means, in particular a plain bearing bush, and / or at least one sleeve or sleeve and / or an adapter is arranged at least partially between the brake actuating device and the control device, and / or the fastening device can be fastened to the control device with a clamping connection, and / or the fastening device has two components or only one component and can be fastened via at least one connecting element, preferably in the form of a screw.

[0021] In a further embodiment, the brake actuating device is characterized in that the switching device can be rotated manually and / or via a servomotor, preferably including electronic control, by a user, and / or the switching device can be rotated via at least one button, a lever, a knob, a rotary handle, a pawl, a loop and / or a cable.

[0022] In a further example, the brake actuation device is characterized by a spring element which, when the switching device is not actuated, rotates the switching device into a neutral position in which the braking system does not perform any braking power, wherein preferably the at least one electrical signaling device is in a state which at least allows the actuation of the drive unit of the vehicle.

[0023] In a further embodiment, the brake actuating device is characterized by at least one sensor for sensing a rotation of the switching device, wherein preferably the at least one sensor is comprised by the at least one electrical signaling device.

[0024] In a further example, the brake actuating device is characterized in that the at least one electrical signaling device is actuated via the Bowden cable, a switch, a hydraulic device, the at least one sensor and / or the stop when the switching device rotates.

[0025] Alternatively or additionally, the brake actuating device is characterized in that upon rotation of the switching device, the at least one electrical signaling device emits a signal for a braking function and a switching to a recuperation mode and / or a lighting unit.

[0026] The invention also provides a drive or traction device comprising a control device, in particular in the form of a handlebar, a drive unit, a braking system and a brake actuating device according to the invention.

[0027] The drive or traction device can be characterized by at least one battery, preferably comprised by the drive unit, the braking system and / or the lighting unit, which can be at least partially charged in recuperation mode.

[0028] Finally, the invention also provides a wheelchair with a drive or traction device according to the invention.

[0029] Further features and advantages of the invention will become apparent from the following description of embodiments. The drawings show: Figure 1 is a perspective top view of an embodiment of a

[0030] fastening device;

[0031] Figure 2 is a perspective top view of an embodiment of a

[0032] switching device;

[0033] Figures 3a and 3b are a perspective exploded view and a plan view of an embodiment of an inventive

[0034] Brake actuating device comprising the

[0035] Fastening device of Figure 1 and the switching device of Figure 2;

[0036] Figures 4a to 4c show a schematic sequence of states of a further embodiment of a

[0037] brake operating device;

[0038] Figures 5a and 5b show the brake actuation device of Figures 4a and 4b in two

[0039] conditions;

[0040] Figures 6a and 6b show two perspective exploded views of the embodiment according to Figures 5a and 5b; and

[0041] Figure 7 shows a brake actuating device according to the invention on a

[0042] Pulling device for a wheelchair.

[0043] The following description of embodiments is intended only to illustrate the invention, but not for the purpose of limiting it as defined by the appended claims.

[0044] A brake actuation device according to the invention is intended for mounting on a control device, preferably a handlebar, of a vehicle and is preferably actuated manually by a user's rotational movement. However, the actuation of the control device can also be carried out in other ways familiar to a person skilled in the art.

[0045] Such a brake actuating device has two essential components, namely a fastening device 3, as shown, for example, in Figure 1, and a switching device 5, as shown, for example, in Figure 2. A brake actuating device 1 with the fastening device 3 of Figure 1 and the switching device 5 of Figure 2 is shown in Figures 3a and 3b.

[0046] A rotational movement of the switching device 5 actuates both the braking device 41 and an electrical signaling device 31, which is explained with reference to Figures 3a and 3b, for example, for deactivating a drive unit 42 of a wheelchair (not shown) or a traction part for a wheelchair. For this purpose, the fastening device 3 is attached to a handlebar 20.

[0047] Such handlebars 20 typically have a circular cross-section, thus forming a cylinder. In order to achieve the best possible clamping of the fastening device 3 to the handlebar 20, the inner shape 2' of the fastening device 3 is essentially complementary to the outer shape of the handlebar 20, i.e., cyclical, so that a positive connection can ensure a stable fastening, thus preventing translational movement orthogonal to the cylinder axis. In order to prevent translational movement along the cylinder axis and rotational movement about the cylinder axis, a frictional connection through the cylindrical parts of the sections of the fastening device 4' and 4" can also be used in the usual way, in that these components 4', 4" form the frictional connection with the handlebar 20 by means of the screws 6.

[0048] If there is no circular cross-section, at least in the area of ​​the mounting surface of the brake actuating device 1, an adapter can be interposed. The brake actuating device 1 can preferably also be fastened to the handlebar 20 via a sleeve or sleeve 15 of the fastening device 3. The sleeve or sleeve 15 can encompass the entire circumference of the handlebar 20 or only part of it. In addition, the sleeve or sleeve 15 can consist of several layers or elements and can be longer, shorter, or the same width as the mounting surface. Such a sleeve or sleeve 15 can also be formed as an additional component (see component 15 in Fig. 1) or integrated into another component of the brake actuating device 1 (see component 15 as part of the fastening device 3 in Fig. 3a) or be located directly on the handlebar 20.

[0049] The functions of the sleeve 15 are those of supporting and axially positioning the brake actuating device 1 on the fastening device 3. If the sleeve 15 is omitted, the fastening device itself must fulfill said functions.

[0050] Furthermore, the fastening device 3 according to Figure 1 has an upper section 4' and a lower section 4", which are clamped to the handlebar 20 by two connecting elements, e.g. comprising screws 6. The two sections 4', 4" enable direct mounting to the handlebar 20, without sliding over one end of the handlebar 20. Nevertheless, embodiments, as indicated in Figures 3a and 3b, are also according to the invention, in which the fastening device has only one component including a handlebar clamp 21 and accordingly has to be pushed over one end of the handlebar 20.

[0051] The switching device 5, which complements the fastening device 3, has, as shown in Figure 2, a cylindrical inner shape 2" which can be rotated relative to the fastening device 3 either directly on the handlebar 20 or via a plain bearing bushing 22 as shown in Figures 3a and 3b. The plain bearing bushing 22 can be part of the fastening device 3 or sleeve 15 or switching device 5; it can also be omitted. Particularly if no plain bearing bushing 22 is installed, a lubricant such as grease can be used.

[0052] The switching device 5 has a control and transmission element which, through the rotational movement of the switching device 5, controls at least one braking system (not shown) including at least one braking device 41. The braking system can be actuated mechanically, as described in Figures 4a to 5b using a Bowden cable 30. In other embodiments, the elements required for braking can comprise sensors and / or hydraulic devices. If the braking system is actuated via a Bowden cable 30, the fastening device 3 has a Bowden cable input 11, and the switching device 5, as a control and transmission element, has a Bowden cable receptacle 8 and a Bowden cable guide 9, e.g., in the form of a raised portion. The fastening device 3 has recesses 10 complementary to the raised portion of the Bowden cable guide 9 and the Bowden cable receptacle 8, in order to permit a guided rotational movement.

[0053] Furthermore, the fastening device 3 and switching device 5 have complementary stops 12' and 12", respectively, which limit the relative rotational movement of the switching device 5 relative to the fastening device 3. The stops can be designed to be electronically or pneumatically adjustable. Alternatively or in addition to the stops 12' and 12", surmountable resistances, for example of a mechanical or electronic nature, can be used to enable more targeted control through haptic feedback of the switching device. This haptic feedback can also be generated by separate feedback elements, such as vibration elements, controlled by sensors. Thus, the user is given certain states of the wheelchair or the traction part of the wheelchair or the brake actuation device 1 via haptic feedback, to which the user can react.In other embodiments, this feedback may also be provided by feedback elements that emit visual or acoustic signals.

[0054] The electrical signaling device 31 is actuated at least when the switching device 5 is actuated or can also be controlled according to the rotation of the switching device 5. The electrical signaling device 31 is connected, as shown in Figures 4a to 5b, to at least one controller (not shown) by a cable 32 or alternatively via a radio device. The controller can control a drive unit 42 (shown in Figure 7), preferably with one or more electric motors, receiving, for example, a signal from the electrical signaling device 31 that no further drive should take place from the drive unit 42. Alternatively or additionally, the controller can be connected to a lighting unit (not shown) in order to activate a warning light, such as a brake light, when the switching device 5 is actuated. There can also be several electrical signaling devices 31 connected to one or more controllers.In principle, such electrical signaling devices 31 can be connected to all switchable elements of the wheelchair or towing part of the wheelchair. In further embodiments, at least one electrical signaling device 31 can sense the rotation of the switching device 5 relative to the fastening device 3 using one or more sensors. This not only enables the drive unit 42 or a lighting unit to be switched on and off, for example, using an electrical signaling device 31, but also allows these elements to be controlled according to the sensed rotation. This could, for example, control the braking force of a drive unit 42 in recuperation mode or, once the switching device 5 is rotated a certain distance, cause a lighting unit to flash instead of illuminate continuously.

[0055] The electrical signaling device 31 can be a micro-switch that can send signals 0 or 1 and is connected to the controller of the drive unit 42 via a cable 32. The fastening device 3 can then have a space 13 for the micro-switch 31, which simultaneously serves as a holder and protection for the micro-switch 31. However, several electrical signaling devices 31 can also be accommodated in the space 13, and / or several spaces 13 can be provided for several electrical signaling devices 31.

[0056] Furthermore, the fastening device 3 has a cable outlet 14 for the cable 32 which connects the micro-switch 31 to the controller.

[0057] The exploded view and top view of Figures 3a and 3b show how the switching device 5 is rotatably connected to the fastening device 3 and the sleeve 15 via the plain bearing bushing 22. For this purpose, the switching device 5 is pushed onto the plain bearing bushing 22, which in turn is pushed onto the sleeve 15, so that the switching device 5 is brought closer to the fastening device 3 and the elevations of the Bowden cable receptacle 8 and Bowden cable guide 9 of the switching device 5 extend at least partially into the recess 10 of the fastening device 3. Thus, when the switching device 5 rotates relative to the fastening device 3, the stops 12' and 12" can also come into contact in order to limit the rotation.

[0058] Figures 4a, 4b, and 4c show a schematic sequence of states of an alternative brake actuation device 1, with Figure 4a representing the starting state, Figure 4b the state of starting brake actuation, and Figure 4c the state of the actuated brake. The switching device 5 rotates clockwise; the fastening device 3 has been omitted for clarity.

[0059] The rotation of the switching device 5 actuates the Bowden cable 30 via the Bowden cable receptacle 8, pulling the Bowden cable 30 along with the rotation and thus exerting a tensile force on the Bowden cable 30. At the same time, the rotation of the switching device 5 opens a switch 33 of the micro-switch 31, whereby, according to this embodiment, a defined signal is sent to the controller of the drive unit 42 in order to at least deactivate the drive function.

[0060] Depending on the embodiment, the electrical signaling device 31 is controlled by rotating the switching device 5 by means of the elevation, such as the Bowden cable receptacle 8 and / or the Bowden cable guide 9; or by means of the Bowden cable 30, a switch, a sensor, a hydraulic device or the stop 12", or by means of a combination thereof.

[0061] Figures 5a and 5b show the brake actuating device 1 of Figures 4a and 4b in two states, with the movement of the components being shown through the fastening device 3. Figure 5a represents the state in which the brake actuating device 1 is not actuated, and Figure 5b represents the state in which the brake actuating device 1 is actuated. During said actuation, the braking system is activated or the micro-switch 31 is switched, namely by opening the switch 33, so that the drive unit 42 at least no longer provides any drive. In the view through the fastening device 3, the clockwise rotational movement of the switching device 5 including the Bowden cable receptacle 8 and the resulting opening of the switch 33 can be seen in comparison of Figures 5a and 5b. It is also visible that the Bowden cable 30 is wound up by the rotational movement of the switching device 5 or Bowden cable holder 8.

[0062] Figures 6a and 6b each show a perspective top view of the embodiment according to Figures 5a and 5b. It can be seen that, according to this embodiment, the sleeve 15 is designed as a separate component, via which the brake actuation device is attached to the handlebar 20.

[0063] Furthermore, in this embodiment, the mounting of the switching device 5 consists of two plain bearing bushes 22, which corresponds to a preferred embodiment due to its ease of assembly. Both plain bearing bushes 22 each have a ring-like vertical protrusion at one of their ends, thus providing a sliding axial restriction on both sides of the switching device 5. A clamping ring 36 ensures that the connection between the plain bearing bushes 22 and the actuating device 5 cannot become loose along the longitudinal axis of the handlebar 20.

[0064] Furthermore, the lower portion of the fastening device 4" has a cover 34, which closes the space for the electrical signaling device 13 with screws 35. In other embodiments, the cover 34 is connected to the component 4" with fastening elements known to those skilled in the art, or is clamped, or is itself part of the lower portion of the fastening device 4".

[0065] Figure 7 shows an embodiment of the brake actuating device 1 according to the invention on a traction device 40 including a drive wheel 43 for a wheelchair 50. According to this exemplary embodiment, the brake actuating device 1 is attached to the left side (from the driver's perspective) of the steering device 20. The brake device 41, designed here as a disc brake, is actuated via a Bowden cable 30. An electric hub motor including a battery is installed as the drive unit 42. According to the explanations above, rotation of the switching device 5 activates the brake unit 41 and simultaneously deactivates the drive function of the drive unit 42. For the signal transmission from the brake actuating device 1 to the drive unit 42, a cable connection is provided between the brake actuating device 1 and the control of the drive unit 42.In a further embodiment, by switching the electrical signaling device 31, not only the drive function can be deactivated, but the drive unit 42 can be put into a braking mode for brake assistance or, particularly advantageously, into a recuperation mode in order to generate electrical energy through braking energy, which can be used, for example, to charge a battery or an accumulator of the drive unit 42 or another unit.

[0066] The features of the invention disclosed in the above description, the claims and the drawings may be essential both individually and in any combination for the realization of the invention in its various embodiments.

[0067] List of reference symbols

[0068] 1 brake actuation device

[0069] 2' Cylindrical inner shape of a switching device

[0070] 2" Cylindrical inner shape of a fastening device

[0071] 3 Fastening device

[0072] 4' Upper section of a fastening device

[0073] 4" Lower section of a fastening device

[0074] 5 Switching device

[0075] 6 screws

[0076] 7 Attachment to a control device

[0077] 8 Bowden cable holder

[0078] 9 Bowden cable guide

[0079] 10 recess

[0080] 11 Bowden cable input

[0081] 12' stop of a fastening device

[0082] 12" stop of a switching device

[0083] 13 Space for electrical signaling device

[0084] 14 Cable outlet

[0085] 15 sleeve

[0086] 20 Handlebar

[0087] 21 Handlebar clamp

[0088] 22 plain bearing bush

[0089] 30 Bowden cable

[0090] 31 Micro Switch

[0091] 32 cables

[0092] 33 switches

[0093] 34 lids

[0094] 35 fastening screws

[0095] 36 clamping ring

[0096] 40 traction device

[0097] 41 Braking device

[0098] 42 Drive unit 43 Drive wheel

[0099] 50 Roll Chair

Claims

Claims: Brake actuation device (1) for a vehicle, comprising a fastening device (3) designed to be mounted at least rotationally fixed on a control device of the vehicle, in particular on a steering rod (20), and a switching device (5) comprising at least one control and transmission element designed to control a braking system of the vehicle, characterized by at least one, in particular electrical, signaling device (31), wherein the switching device (5) is rotatably connected to the fastening device (3), and a rotational movement of the switching device (5) relative to the fastening device (3) controls the braking system and the at least one electrical signaling device (31).Brake actuation device according to claim 1, characterized in that the at least one electrical signaling device (31) is designed to be connectable to at least one controller of a drive unit of the vehicle via at least one cable (32) or a radio connection and / or to send a signal when actuated to switch off the drive function of the drive unit, wherein preferably the at least one electrical signaling device (31) comprises a micro-switch (31). Brake actuation device according to claim 2, characterized in that the mounting device (3) has at least one space (13) for the at least one electrical signaling device (31) and / or at least one cable outlet (14) for the at least one cable (32) of the at least one electrical signaling device (31). Brake actuation device according to any one of the preceding claims, characterized in that. The control and transmission element is mechanically, electrically, hydraulically, or pneumatically actuated, and / or the control and transmission element comprises a Bowden cable (30), wherein the Bowden cable (30) preferably interacts with a Bowden cable receptacle (8) and a Bowden cable guide (9). Brake actuation device according to claim 4, characterized in that the fastening device (3) and the switching device (5) each have complementary recesses (10) or projections or guide elements for guiding the rotational movement of the switching device (5).Brake actuation device according to claim 4 or 5, characterized in that the mounting device (3) comprises at least one Bowden cable entry (11), and the switching device (5) comprises the Bowden cable receptacle (8) and the Bowden cable guide (9), wherein preferably the Bowden cable receptacle (8) and / or the Bowden cable guide (9) has at least one projection that at least partially engages a recess (10) in the mounting device (3). Brake actuation device according to any one of the preceding claims, characterized in that the switching device (5) has a stop (12"), and the mounting device (3) has a counterpart, in particular in the form of a stop (12'), to the stop (12") of the switching device (5), and / or an electronic rotation lock is provided, and / or the rotational movement of the switching device (5) relative to the mounting device (3) can be limited from a certain rotation.Brake actuation device according to one of the preceding claims, characterized by. at least one feedback element for outputting at least one visual, acoustic and / or haptic signal, preferably comprising a haptic feedback element to provide haptic feedback, in particular in the form of vibrations, on states of the brake actuation device (1).Brake actuation device according to one of the preceding claims, characterized in that the switching device (5) is connected to the fastening device (3) via at least one sliding means, in particular a sliding bearing bushing (5), and / or at least one sleeve or sleeve (15) and / or an adapter is arranged at least partially between the brake actuation device (1) and the control device (20), and / or the fastening device (3) can be attached to the control device (20) with a clamping connection, and / or the fastening device (3) has two components (4', 4") or only one component and can be fastened via at least one connecting element, preferably in the form of a screw (6).A brake actuation device according to one of the preceding claims, characterized in that the switching device (5) can be rotated manually and / or via an actuator, preferably including electronic control, by a user, and / or the switching device (5) can be rotated via at least one button, lever, knob, rotary handle, pawl, loop and / or cable. A brake actuation device according to one of the preceding claims, characterized by a spring element which, when the switching device (5) is not actuated, rotates the switching device (5) into a neutral position in which the braking system does not provide any braking power, wherein preferably the at least one electrical signaling device (31) is in a state that at least permits the actuation of the vehicle's drive unit. A brake actuation device according to any of the preceding claims, characterized by at least one sensor for sensing a rotation of the switching device (5), wherein the at least one sensor is preferably encompassed by the at least one electrical signaling device (31). A brake actuation device according to any of the preceding claims, characterized in that the at least one electrical signaling device (31) is actuated via the Bowden cable (30), a switch, a hydraulic device, the at least one sensor and / or the stop (12', 12") when the switching device (5) rotates. A brake actuation device according to any of the preceding claims, characterized in that when the switching device (5) rotates, the at least one electrical signaling device (31) sends a signal for a braking function and a switch to a recuperation mode and / or a lighting unit.Drive or traction device comprising a control device (20), in particular in the form of a steering rod, a drive unit, a braking system, and a brake actuation device (1) according to any one of the preceding claims. Drive or traction device according to claim 15, characterized by at least one battery, preferably comprising the drive unit, the braking system, and / or the lighting unit, which is at least partially rechargeable in recuperation mode. Wheelchair with a drive or traction device according to claim 15 or 16.

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