DE102020118362A1 - Brake transmitter arrangement for a braking system of a vehicle, link arrangement with the brake transmitter arrangement and vehicle with the link arrangement - Google Patents

Abstract

A brake transmitter arrangement 10 for a brake system of a vehicle 1 with a hydraulic cylinder device 68 for activating a brake receiver of the vehicle 1 and with a hand lever 18 which can be pivoted about a pivot axis and into which an actuating force F can be introduced is proposed. The brake transmitter assembly 10 includes a push rod 46 for transmitting the actuating force F to the hydraulic cylinder device 68. A force transmission device 38 for transmitting the actuating force F from the hand lever 18 to the push rod 46 is provided. The power transmission device 38 is largely integrated and the hydraulic cylinder device 68 is fully integrated in a cavity 13 of a handlebar 2 of the vehicle 1 .

Description

The invention relates to a brake transmitter arrangement for a braking system of a vehicle with the features of the preamble of claim 1, a link arrangement with a link and with the brake transmitter arrangement and a vehicle with the link arrangement.

Braking systems of small and/or very small vehicles often include brake transmitters with manually operable brake levers, which are arranged on a handlebar of the small and/or very small vehicle. An actuating force can be generated by means of the brake transmitter and introduced into a brake receiver of the brake system in order to brake a wheel of the vehicle. In addition to mechanical braking systems, hydraulic braking systems are already known, in which the actuating force is converted into a hydraulic pressure force for actuating the brake taker.

For example, the reference describes DE 20 2018 004 603 U1 an arrangement of a frame for a vehicle, a bicycle handlebar, a bicycle fork and a mechanically operating braking device. The braking device includes a brake lever which is arranged on the bicycle handlebar and which has a brake cable.

In the pamphlet DE 10 2017 106 353 A1 a brake transmitter for a hydraulic brake of a light vehicle is disclosed. The brake transmitter comprises a brake cylinder with a pressure chamber and a brake piston which is arranged in the brake cylinder and can be displaced along a longitudinal axis. For actuation, the brake piston is connected to a brake lever via a coupling rod.

It is the object of the present invention to provide a hydraulic brake transmitter for a brake system of a vehicle that is integrated in a space-saving manner and is protected against damage. This object is achieved by a brake transmitter arrangement for a braking system of a vehicle with the features of claim 1, by a link arrangement with the brake transmitter arrangement and with a link for a vehicle with the features of claim 8 and by a vehicle with the link arrangement according to claim 10. Preferred or advantageous embodiments of the invention result from the dependent claims, the following description and the attached figures.

The subject matter of the invention is a brake transmitter arrangement for a braking system of a vehicle. The vehicle has at least one wheel. For example, the vehicle is designed as a single-lane or multi-lane vehicle. The vehicle can preferably be driven by muscle power and/or electrically. In particular, the vehicle is embodied as a small and/or extremely small vehicle, meaning vehicles without a seat or self-balancing vehicles with or without a seat.

The vehicle is preferably designed as a small or very small electric vehicle or as an electric vehicle. With only one wheel, the vehicle can be designed as an electric unicycle, e.g. as a so-called monowheel or solowheel. With two or more wheels, the vehicle is preferably a scooter, in particular an electric motorcycle, an electric scooter, an electric scooter, electric kick scooter, electric scooter, e.g. e-scooter, a Segway, hoverboard, kickboard, skateboard, longboard or the like. educated. Alternatively, the vehicle can be designed as a bicycle, in particular as an electric bicycle, e.g. as a pedelec or as an e-bike. Alternatively, the vehicle can be designed as a multi-track bicycle, in particular with three or more wheels. For example, the vehicle can be a transport or cargo bike, in particular a motorized or electrically driven transport or cargo bike, in particular a three-wheel or four-wheel pedelec or a rickshaw, in particular with or without a roof, or a cabin scooter.

The vehicle has a link, by means of which the at least one wheel of the vehicle can be steered in one direction of travel. The link preferably has an axial longitudinal extent which runs transversely to the direction of travel of the vehicle.

In particular, the link has a first and a second outer axial end, with an edge area adjoining the first outer axial end. Starting from the respective end, the edge region preferably has a length of at least 30 millimeters, preferably at least 50 mm, in particular at least 70 mm and/or at most 110 mm. It is preferred within the scope of the invention that the vehicle has a closure cap for each outer axial end of the link, by means of which the ends can be closed and/or closed.

Preferably, the link has a cavity and an opening. The opening is preferably arranged in the edge area. In particular, the opening forms an access to the cavity.

The vehicle preferably has the braking system. In particular, the braking system is designed to brake the at least one wheel of the vehicle. In particular includes the brake system, the brake transmitter arrangement and a brake receiver, for example a brake shoe or brake disc, to form a frictional connection with a wheel-side friction partner of the vehicle.

The brake master assembly includes a hydraulic cylinder device. The hydraulic cylinder device is designed to activate the brake actuator of the vehicle, in particular by introducing a hydraulic pressure force. The hydraulic cylinder device includes a cylinder housing and a piston. The cylinder housing forms a pressure cylinder. A hydraulic fluid is preferably arranged in the pressure cylinder to form a fluid column. The piston is arranged to be axially movable in the pressure cylinder. Optionally, the hydraulic cylinder device includes a hydraulic line which is fluidically connected to the pressure cylinder. Preferably, during and/or during an axial movement of the piston in the pressure cylinder, the hydraulic pressure force is generated, which can be transmitted to the brake transmitter via the hydraulic line, so that the latter can be activated.

The hydraulic cylinder device is preferably arranged in the cavity of the handlebar when the brake transmitter arrangement is arranged on the handlebar. For the axial positioning of the cylinder housing in the cavity, the hydraulic cylinder device comprises, for example, at least one support rod. The support rod is preferably designed to support the cylinder housing in a positionally secure manner in the cavity.

The brake transmitter assembly includes a hand lever, which is designed in particular for manual operation. The hand lever can be pivoted about a pivot axis when an actuating force is introduced. The pivot axis is defined, for example, by an axle device of the brake transmitter assembly. The hand lever can preferably be pivoted about the pivot axis from a rest position into an actuated position. In the rest position, the braking system of the vehicle is preferably inactive, whereas it is active in the operating position of the hand lever, so that at least one wheel is braked. Optionally, the hand lever is arranged in the edge area of the handlebars of the vehicle when the brake transmitter arrangement is arranged on the handlebars.

The brake transmitter assembly includes a push rod. The push rod is designed to transfer the actuating force introduced in particular into the hand lever to the hydraulic cylinder device. For this purpose, the push rod is preferably operatively connected indirectly, in particular with the interposition of at least one further component, to the hand lever.

According to the invention, the brake transmitter assembly includes a power transmission device. The force transmission device is designed to transmit the actuating force from the hand lever to the push rod, preferably directly. In particular, the power transmission device forms the at least one component which is interposed between the push rod and the hand lever and/or via which both are operatively connected to one another. Preferably, the power transmission device is located largely within the cavity of the handlebar when the brake transmitter assembly is located on the handlebar.

In a preferred embodiment of the invention, the power transmission device comprises a cable pull. The cable pull preferably has a first cable end and a second cable end. The first rope end is preferably attached to the hand lever. For example, a first fastening section is arranged on the first cable end and/or formed by the first cable end. The first attachment portion is formed, for example, in a cylindrical shape. Optionally, the hand lever includes a fastening area that fits the first fastening section, with the first fastening section being arranged in the fastening area in a non-positive and/or positive manner. For example, the first fastening area is arranged on and/or formed by a hook device formed on the hand lever. In particular, the hook device encompasses the first fastening section in a form-fitting manner, so that the traction rope is fastened to the hand lever with the first rope end. It is possible for the first fastening section to be arranged in a rotationally fixed manner in the fastening area. Alternatively, the first attachment portion can be arranged rotatably and/or slidably in the attachment area.

In one possible embodiment of the invention, the force transmission device has a swivel joint device which is designed in particular to convert a pulling force of the traction cable generated by the actuating force into a compressive force for the push rod. The swivel joint device can preferably be swiveled about a joint swivel axis. The joint pivot axis preferably extends in the same direction and/or parallel to the pivot axis of the hand lever. The swivel joint device comprises, for example, two sheet metal parts. The sheet metal parts can be essentially triangular or circular, for example. In particular, they are oriented in the same direction, are arranged congruently in a plan view from above and/or are connected to one another at a distance at least in sections. Preferably, the pivot joint means includes a pivot pin. For example, the two sheet metal parts are connected to one another via the pivot pin, in particular at at least in sections at a distance, connected. In particular, each sheet metal part has a pivot pin bore through which the pivot pin extends. Preferably, the two sheet metal parts pivot about the pivot pin. It is particularly preferred within the scope of the invention that the swivel joint device is arranged in the hollow space of the handlebar when the brake transmitter arrangement is arranged on the handlebar.

In a possible structural implementation of the invention, the power transmission device has a swivel joint housing. The swivel joint housing is formed, for example, as a substantially cylindrical sheet metal part. Preferably, the swivel joint means is pivotally received in the swivel joint housing. Preferably, the pivot joint device comprises a sliding sleeve, with the pivot pin being arranged in the sliding sleeve to reduce friction. In particular, the pivot pin is mounted pivotably in the pivot joint housing via the sliding sleeve. Preferably, the pivot joint housing has a first through opening and a second through opening. The first through-opening is in particular arranged so that it overlaps or is congruent with the opening in the link of the vehicle when the swivel joint housing with the swivel joint device accommodated therein is arranged in the hollow space of the link. The second through-opening is directed, for example, in the axial direction, in particular away from the first outer axial end of the link and/or towards the second outer axial end of the link.

In a further preferred embodiment of the invention, the second cable end of the traction cable is attached to the swivel joint device. Preferably, the pull cable passes through the aperture in the handlebar and through the first through aperture in the pivot housing and extends from the hand lever to the pivot assembly. Preferably, the second cable end can be pivoted together with the pivot joint device about the joint pivot axis. In particular, by attaching the pull cable to the hand lever during and/or during its transfer from the rest position to the actuated position, the pull cable is pulled, with the result that the swivel joint device swivels about the joint swivel axis.

For example, the traction cable has a second attachment section on the second end of the rope and/or the second attachment section is formed by the second end of the rope. For example, the second attachment portion is cylindrical or substantially cylindrical. The swivel joint device preferably has bores in which the second fastening section is arranged. The bores preferably extend through the two sheet metal parts of the swivel joint device. Optionally, the holes are arranged in a first fastening position on the sheet metal parts. The two sheet metal parts are preferably connected to one another via the fastening section arranged in the bores, e.g. at least in sections at a distance. Within the scope of the invention, it is preferred that the second fastening section is arranged in the bores so that it can rotate and/or slide. In particular, the second rope end can thus be twisted in the bores relative to the swivel joint device.

In a possible constructive implementation of the invention, the second rope end has a weakened point. In particular, the weakened point forms a predetermined breaking point. The weakening point is preferably arranged on the second fastening section and/or integrated into it. For example, the weakened point is formed by a e.g. central indentation in the cylindrical fastening section. The indentation can, for example, form a passage area for the push rod during its axial displacement.

The second rope end, in particular the attachment section, preferably breaks or tears at the weakened point, e.g. in the event of excessive and/or sudden force being applied, such as in the event of a vehicle accident and/or if the hand lever is torn off the handlebar. In particular, the second end of the cable can become detached from the swivel joint device if the weakened point breaks or tears.

The advantage of this is that the swivel joint device and the hydraulic cylinder device, which is preferably connected via the push rod, are protected against damage in the event of excessive and/or jerky forces acting on the traction cable. For example, the hand lever can be torn off the handlebars in the event of an accident. The weakened point can largely or completely ensure that the traction cable tears at the second end and that the force is not transmitted to the swivel joint device and/or to the hydraulic cylinder device with a damaging effect. Alternatively, the weakening point can also be implemented in the pressure lever or in another suitable component of the brake transmitter arrangement.

In a preferred constructional embodiment of the invention, the swivel joint device has additional bores, which are made in particular in the two sheet metal parts. Optionally, the additional holes in the sheet metal parts are arranged in a second fastening position. Into the in particular, the first and second fastening positions and/or the position of the pivot axis or pivot pin are different and/or spaced apart positions.

Preferably, the swivel joint means comprises a threaded pin. The threaded pin preferably extends through the further bores, so that the sheet metal parts are connected to one another by means of the threaded pin, e.g. at least in sections at a distance. In particular, the threaded pin has a threaded hole. The threaded hole is preferably positioned in the area of the threaded pin that is arranged in the space between the two sheet metal parts.

In a preferred development of the invention, the push rod is connected to the swivel joint device. The push rod preferably has a threaded section for this purpose. For example, the threaded portion may be located at a first rod end or spaced from the first rod end. The push rod is preferably fastened to the swivel joint device by means of the threaded section. In particular, the push rod is screwed with the threaded section into the threaded bore of the threaded pin. Thus, the push rod preferably runs through between the two sheet metal parts of the swivel joint device. It is particularly preferred that the push rod connected to the swivel joint device is axially displaceable when the swivel joint device is swiveled about the joint swivel axis.

It is preferred within the scope of the invention that the push rod can be positioned axially relative to the swivel joint device by means of the threaded section. In particular, an axial position of the push rod relative to the swivel joint device can be adjusted and/or changed by screwing the push rod in or out in the threaded receptacle of the threaded pin. This allows, for example, wear adjustment to be carried out in the vehicle's brake system.

In a possible constructional embodiment of the invention, the push rod is connected to the piston at the end, in particular with a second rod end. Preferably, the push rod passes through the second through hole in the pivot housing and extends between the pivot means and the piston. Preferably, the push rod moves the piston axially in the pressure cylinder when the pivot joint means pivots about the joint pivot axis and the push rod is thereby displaced axially. In particular, the hydraulic pressure force is generated in the pressure cylinder by the axial movement of the piston, which can be transmitted to the brake actuator of the vehicle to activate it.

In summary, the actuating force introduced into the hand lever is preferably transmitted to the swivel joint device via the traction cable, as a result of which the latter swivels about the joint swivel axis. In particular, the push rod is axially displaced during and/or as a result of the pivoting of the swivel joint device, as a result of which the piston in the pressure cylinder is moved axially and the hydraulic pressure force is generated.

In a further possible structural implementation of the invention, the brake transmitter arrangement comprises a housing, with the hand lever being accommodated in sections in a receiving section of the housing. The hand lever is preferably fastened pivotably to the housing by means of the axle device. In particular, the hand lever has an axle seat and the housing has at least one hole, preferably two holes, for the axle device. In particular, the axle means is secured in the holes in the receiving portion and extends through the axle seat of the hand lever.

Optionally, the hand lever and the housing, in particular the receiving section, include corresponding and/or interacting upper stop elements, which form an upper end stop of the brake transmitter arrangement. It is also possible within the scope of the invention for the hand lever and the housing, in particular the receiving section, to have corresponding and/or interacting lower stop elements which form a lower end stop of the brake transmitter arrangement. The upper end stop preferably limits the pivoting of the hand lever from the actuated position into the rest position. In particular, the lower end stop limits the pivoting of the hand lever from the rest position to the operating position.

The housing and the hand lever, which is pivotably connected to the housing, can preferably be fastened to the handlebar. For this purpose, the brake transmitter arrangement preferably includes a fastening device which is designed, for example, as a half-shell that can partially, for example half, enclose the handlebar. The housing preferably has a gripping section which can partially, eg half, grip the handlebar. The fastening device and the wrap-around section can preferably be connected and/or connected to form a fastening clamp, by means of which the brake transmitter arrangement can be arranged, in particular fastened, on the handlebar. For example, can NEN the wraparound portion and the fastening device are positively and / or non-positively connected to each other, in particular screwed together to form the fastening clip. The fastening clip is preferably designed to be arranged in the edge area of the first outer axial end of the link and/or to fasten the brake transmitter arrangement in the edge area.

In one possible embodiment of the invention, the brake transmitter arrangement comprises at least one reset device, which is designed to reset the hand lever from the actuated position to the rest position, in particular when manual force is no longer applied to the hand lever. For example, the restoring device is designed as at least one elastic device, e.g. as at least one tension spring. The restoring device preferably stores the manual actuating force during and/or during the transfer of the hand lever from the rest position to the actuating position. In particular, the restoring device returns the hand lever to the rest position with the stored actuating force. Preferably, the reset means is fixed to the hand lever, e.g., to the hook means, and to the housing, e.g., to the wrap-around portion.

A further object of the invention is a link arrangement with the brake transmitter arrangement designed according to the previous description and/or according to one of claims 1 to 7. The link assembly also includes a link for a vehicle. The handlebar and/or the vehicle is/are preferably designed according to the previous description.

The brake transmitter assembly is arranged on the handlebar. The brake transmitter arrangement is preferably fastened in the edge area of the handlebar, with the edge area adjoining the first outer axial end of the handlebar.

In a preferred embodiment of the invention, the link has a cavity and an opening leading into the cavity. The opening is preferably arranged in the edge area. Preferably, the handlebar includes a tube surrounding the cavity. Preferably the tube has the opening.

In a possible development of the invention, the swivel joint housing and/or the swivel joint device is/are arranged in the cavity, in particular completely accommodated therein. Preferably, in a plan view of the link from above, the opening is arranged so that it overlaps or is congruent with the first through-opening in the swivel joint housing. In particular, the cable pull extends, starting from the hand lever, through the opening in the handlebar and through the first passage opening in the swivel joint housing to the swivel joint device. The push rod extends in particular starting from the swivel joint device through the second through-opening in the swivel joint housing to the hydraulic cylinder device. Preferably, the push rod and the hydraulic cylinder device are fully contained in the cavity.

It is advantageous that the swivel joint housing, the swivel joint device, the push rod and the hydraulic cylinder device are well protected against damage, e.g. in the event of the vehicle tipping over and/or a collision, by being completely accommodated in the cavity. Furthermore, they are integrated in the vehicle in a space-saving manner and are not visible from outside the vehicle, so that the vehicle has a simple appearance, which can offer optical advantages.

In a particularly preferred embodiment of the invention, the brake transmitter arrangement is fastened in the edge area of the handlebar in such a way that the hand lever, in particular an actuating section of the hand lever, extends to the second outer end of the handlebar. In particular, the actuating section of the hand lever runs in the same direction and/or parallel to the axial longitudinal extent of the handlebar, in particular transversely to the direction of travel of the vehicle, pointing towards the second outer end of the handlebar. The housing is preferably at a smaller distance from the first outer axial end than the hand lever. It is possible that the housing is arranged adjacent to the closure cap of the first outer axial end.

It is advantageous that this positioning of the brake transmitter arrangement, in particular the hand lever, allows the integration of the swivel joint device, the swivel joint housing, the push rod and the hydraulic cylinder device into the cavity and the insertion of the cable through the opening. A further advantage is that the hands of the driver of the vehicle are protected in the event of accidents or certain driving manoeuvres, since the housing is arranged in particular further out on the handlebars than the hand lever on whose actuating surface the driver's hand is arranged. If the vehicle tips over, it can thus advantageously be avoided that the hand is pinched and injured between the first outer axial end of the link and the ground. It is also possible to avoid injuries that occur as a result of driving the vehicle relatively close along a wall can kick. Also in this case, the hand lever directed towards the second outer axial end of the handlebar and/or the housing arranged outside at the first end can prevent the hand from being pinched between the first end and the wall.

A vehicle with the link arrangement according to the previous description and/or according to claim 8 or 9 forms a further subject of the invention. The vehicle is preferably designed according to the previous description.

• 1 eine perspektivische Vorderansicht eines als E-Scooter ausgebildeten Fahrzeugs mit einem Lenker und mit einer Bremsgeberanordnung;
• 2 eine perspektivische Draufsicht auf ein Rohr des Lenkers, wobei in das Rohr eine Öffnung eingebracht ist;
• 3 ein perspektivischer Längsschnitt durch eine Lenkeranordnung mit dem Lenker und mit der Bremsgeberanordnung, wobei ein Handhebel der Bremsgeberanordnung eine Ruhestellung aufweist;
• 4 die Lenkeranordnung aus der 3, wobei der Handhebel eine Betätigungsstellung aufweist;
• 5 eine perspektivische Draufsicht von oben auf den Handhebel;
• 6 eine perspektivische Draufsicht von unten auf den Handhebel;
• 7 eine perspektivische Innenansicht eines Gehäuses der Bremsgeberanordnung;
• 8 eine perspektivische Draufsicht von unten auf das Gehäuse aus der 7;
• 9 ein Ausschnitt des Gehäuses aus der 8;
• 10 eine perspektivische Draufsicht auf eine Befestigungseinrichtung zur Befestigung des Gehäuses an dem Lenker;
• 11 eine perspektivische Seitenansicht eines Schwenkgelenkgehäuses einer Kraftübertragungsvorrichtung der Bremsgeberanordnung;
• 12 ein perspektivischer Längsschnitt durch die Lenkeranordnung mit der Kraftübertragungsvorrichtung;
• 13 eine Draufsicht auf ein erstes äußeres axiales Ende des Lenkers mit Blick auf eine Schwenkgelenkeinrichtung und auf eine Druckstange einer Kraftübertragungsvorrichtung;
• 14 eine perspektivische Draufsicht auf ein zweites Seilende eines Zugseils der Kraftübertragungsvorrichtung;
• 15 ein axialer Längsschnitt durch den Lenker, wobei in einem Hohlraum des Rohrs eine Hydraulikzylindervorrichtung angeordnet ist;
• 16 ein Zylindergehäuse der Hydraulikzylindervorrichtung in einer perspektivischen Seitenansicht;
• 17 eine perspektivische Ansicht einer Drahtformfeder der Hydraulikzylindervorrichtung;
• 18 eine perspektivische Draufsicht auf eine Stützscheibe der Hydraulikzylindervorrichtung.

Further features, advantages and effects of the invention result from the following description of preferred exemplary embodiments of the invention. show:

• 1 a perspective front view of a designed as an e-scooter vehicle with a handlebar and a brake transmitter assembly;
• 2 a perspective plan view of a tube of the handlebar, wherein an opening is introduced into the tube;
• 3 a perspective longitudinal section through a link assembly with the handlebar and the brake transmitter assembly, wherein a hand lever of the brake transmitter assembly has a rest position;
• 4 the handlebar assembly from the 3 , wherein the hand lever has an operating position;
• 5 a perspective top view of the hand lever;
• 6 a perspective plan view from below of the hand lever;
• 7 a perspective interior view of a housing of the brake transmitter assembly;
• 8th a perspective plan view from below of the housing from FIG 7 ;
• 9 a section of the housing from the 8th ;
• 10 a perspective plan view of a fastening device for fastening the housing to the handlebar;
• 11 a perspective side view of a pivot joint housing of a power transmission device of the brake master assembly;
• 12 a perspective longitudinal section through the link assembly with the power transmission device;
• 13 a plan view of a first outer axial end of the link with a view of a swivel joint device and a push rod of a power transmission device;
• 14 a perspective plan view of a second cable end of a traction cable of the power transmission device;
• 15 an axial longitudinal section through the handlebar, wherein a hydraulic cylinder device is arranged in a cavity of the tube;
• 16 a cylinder housing of the hydraulic cylinder device in a perspective side view;
• 17 a perspective view of a wire form spring of the hydraulic cylinder device;
• 18 a perspective plan view of a support disc of the hydraulic cylinder device.

Corresponding or identical parts are each provided with the same reference symbols in the figures.

In the 1 A perspective front view of a vehicle 1 is shown. The vehicle 1 is designed as an electrically driven scooter, in particular as an e-scooter. The vehicle 1 has a handlebar 2 . The vehicle 1 has a first, steerable front wheel 4 and a second, steerable rear wheel 5, which are rotatably arranged on a frame 6 of the vehicle. The handlebar 2 is connected to a wheel fork 8 of the front wheel 4 via a frame rod 7 so that it can be steered by means of the handlebar 2 . The vehicle 1 includes a braking system 9 by means of which the first wheel 4 and/or the second wheel 5 can be braked. The brake system 9 comprises a brake transmitter arrangement 10 and a brake receiver which is operatively connected to the brake transmitter arrangement 10 in order to form a frictional connection with a friction partner on the wheel.

The link 2 has an axial longitudinal extent which runs transversely to a direction of travel F of the vehicle. The link 2 has two outer axial ends 3,24. A first axial outer end 3 is adjoined by an edge region 11 . Starting from the first end 3, the edge region 11 has a length of at least 30 mm, preferably at least 50 mm, in particular at least 70 mm and/or at most 110 mm. In the edge area 11, the brake transmitter assembly 10 is attached.

the 2 shows a perspective top view of a tube 12, which forms part of the handlebar 2. The tube 12 has a cavity 13 . In the edge region 11 of the tube 12 is an opening 14 is introduced, which forms an access to the cavity 13 .

the 3 and 4 show a longitudinal section through a link arrangement 50 which includes the link 2 and the brake transmitter arrangement 10 . Shown is a section of the handlebar 2 with the tube 12 which has the first axial outer end 3 . This is closed with a closure cap 15 which is inserted into the tube 12 . The handlebar 2 has a casing 16 which can be formed from a foam material or from rubber, for example. The casing 16 extends along the longitudinal extent of the link 2 and surrounds the tube 12, with the edge region 11 adjoining the first axial outer end 3 being recessed.

The brake transmitter arrangement 10 is fastened in the edge area 11 of the handlebar 2 . The brake master assembly 10 includes a housing 17, a hand lever 18, a power transmission device 38, a push rod 46 and a hydraulic cylinder device 67.

The hand lever 18 is pivotally connected to the housing 17 via an axle device 22 of the brake transmitter arrangement 10 . As a result, the hand lever 18 with manual introduction of an actuating force F, in particular via an actuating surface 23 of the hand lever 18, from one in the 3 shown rest position R in a 4 Actuation position B shown can be converted. The push rod 46 transmits the actuating force F indirectly from the hand lever 18 to the hydraulic cylinder device 67, which can generate a hydraulic pressure force for activating the brake calliper. The force transmission device 38 is interposed between the hand lever 18 and the push rod 46 and is intended to transmit the actuating force F from the hand lever 18 to the push rod 46 .

In the operating position B according to the 4 the brake receiver of vehicle 1 is active, so that its front wheel 4 and/or rear wheel 5 is braked. In the rest position R according to 3 the brake taker is inactive, so that the front wheel 4 and/or rear wheel 5 is not braked.

The brake transmitter arrangement 10 is arranged on the first end 3 in such a way that the hand lever 18 , in particular the actuating surface 23 , extends essentially in the same direction and/or parallel to the longitudinal extension of the handlebar 2 . In this arrangement, the hand lever 18 points away from the first axial outer end 3 . He is to a second outer axial end 24 of the handlebar 2 (see 1 ) directed. This has the advantage that injuries to a hand of the driver of the vehicle 1 in an accident, in particular if the vehicle 1 tips over and hits a surface, are better protected against injury, since the hand is avoided between the surface and the handlebars 2 is trapped. Even when driving too close to a wall, the described arrangement of the brake transmitter arrangement 10 and alignment of the hand lever 18 can help to ensure that the hand is not pinched between the wall and the handlebar 2 .

A further advantage of the described arrangement of the brake transmitter assembly 10 and the orientation of the hand lever 18 is that a large part of the power transmission device 38 and the hydraulic cylinder device 67 can be completely accommodated in the cavity 13 of the tube 12 . Thus, the majority of the power transmission device 38 and the hydraulic cylinder device 67 are integrated in the handlebar 2 in a space-saving manner, are invisible from the outside and are therefore optically advantageous. There, the power transmission device 38 and the hydraulic cylinder device 67 are well protected against damage that can occur, for example, as a result of an accident or as a result of the vehicle 1 tipping over.

In the 5 a perspective plan view from above of the hand lever 18, in particular of the actuating surface 23, is shown. the 6 shows a perspective top view of the hand lever 18 from below. The actuating surface 23 extends in a first longitudinal area of the hand lever 18. At the end, in a second longitudinal area of the hand lever 18, different functional devices of the hand lever 18 are arranged and/or formed.

The hand lever 18 has at the end in the second longitudinal region a hook device 25 with two opposite hook elements 26a, 26b directed in the same direction. A hole is made in each of the hook elements 26a, 26b, which provides an engagement interface 27 for two restoring devices 21 of the brake transducer arrangement 10 (see 3 and 4 ) forms. Each hook element 26a, 26b forms a lower stop element 28 of the hand lever 16 for a lower end stop 29 of the brake transmitter assembly 10 (see 4 ).

The hand lever 16 has an axle seat 30 for the axle device 22 (see 3 and 4 ) on. The axle seat 30 is formed by a bore which runs completely transversely through the second longitudinal area of the hand lever 18 .

The hand lever 18 also includes upper stop elements 31 for an upper end stop 32 (see FIG 4 ) of the brake transmitter arrangement 10. The upper stop elements 31 are in the form of lugs which protrude laterally from the hand lever 18 .

In the 7 and 8th different perspective views of the housing 17 are shown. The housing 17 has a receiving section 33 and an encompassing section 34 . The receiving section 33 comprises two side walls 35a, 35b and a top wall 41, which together delimit a receiving area. The receiving section 33 is intended to receive the hand lever 18 in sections in the receiving area and to arrange it pivotably on the housing 17 . For this purpose, a hole 39 is provided in each side wall 35a, 35b for the passage of the axle device 22 (see 3 and 4 ) is provided. The axle device 22 can be fixed in the two holes 39 . The axle assembly 22 extends through the axle seat 30 in the hand lever 18 (see FIG 5 and 6 ) and ends with both ends in the holes 39. As can be seen from the 3 and 4 As can be seen, the axle device 22 forms a pivot axis 67 about which the hand lever 18 can be pivoted from the rest position R into the actuating position B.

In the 9 a section of the receiving section 33 is shown with a view into the receiving space enclosed within the side walls 35a, 35b and the top wall 41. Further upper stop elements 40 are formed on each side wall 35a, 35b and extend from the respective side wall 35a, 35b into the receiving space. Together with the upper stop elements 31 of the hand lever 18 (see 5 and 6 ), the further upper stop elements 40 form the upper end stop 32 of the brake transmitter arrangement 10 (see 4 ).

Two further lower stop elements 42 are arranged on the top wall 41 of the receiving section 33 and protrude into the receiving space. Together with the lower stop elements 28 of the hand lever 18 (see 5 and 6 ), the further lower stop elements 42 form the lower end stop 29 of the brake transmitter arrangement 10 (see 4 ).

The wrap-around portion 34 of the housing 17 is designed to hold the tube 12 (see FIG 2 until 4 ) partially, especially half, to encompass. For this purpose, it has an essentially curved, in particular semi-annular shape, the radius of which is essentially the same as the radius of the tube 12 .

The wrap-around section 34 has two connection interfaces 36 for connection to mating connection interfaces 37 of a fastening device 19 of the brake transmitter arrangement 10, which is designed to fasten the brake transmitter arrangement 10 to the handlebar 2. The fastening device 19 is in the 9 shown in a top perspective view. The fastening device 19 is designed as a half-shell. The half-shell has a radius which essentially corresponds to the radius of the tube 12 . As a result, the fastening device 19 can be placed on the pipe 12 and partially encompass it, for example halfway.

How from the 3 and 4 As can be seen, the fastening device 19 together with the gripping section 34 of the housing 17 can form a fastening clamp 54 for fastening the brake transmitter arrangement 10 to the handlebar 2 . The fastening clip 54 completely surrounds the tube 12 of the handlebar 2 in the edge area 11 . To form the fastening clamp 54, the fastening device 19 is fastened, in particular screwed, to the wraparound section 34 in the connection interfaces 36 and connection counter-interfaces 37 provided for this purpose by means of fastening means, for example screws (see also 13 ).

According to the 7 and 8th the housing 17 has two attachment interfaces 43 which are designed as bores in the wraparound section 34 . The reset devices 21 can be fastened in the fastening interfaces 43 .

Thus, the restoring devices 21 extend as shown in FIGS 3 and 4 evident, between the engagement interfaces 27 of the hand lever 18 (see 5 and 6 ) and the fastening interfaces 43 of the housing 17. When the hand lever 18 is actuated and the rest position R is transferred into the actuated position B, the restoring devices 21, which are designed as tension springs, are tensioned. When the actuating force is no longer acting on the hand lever 18 and it is not actuated, the tension springs pull the hand lever 18 back into the rest position R.

How from the 3 and 4 can be seen, the power transmission device 38 has a cable 20, a swivel joint device 47 and a swivel joint housing 48.

The swivel joint housing 48 is in the 11 shown in a perspective side view. The swivel joint housing 48 is a sheet metal part which is essentially or largely in the form of a circular cylinder. It has an axial longitudinal extent and dimensions by means of which it can be inserted into the cavity 13 of the tube 12 (see 2 until 4 ) can be included.

At a front end, which in the installation situation 3 and 4 is directed towards the first outer axial end 3 of the link 2 , the swivel joint housing 48 has a circular bead 49 . The bead 49 surrounds the tube 12 at its first end 3 so that it is arranged between the tube 12 and the closure cap. As a result, the swivel joint housing 48 is positively secured in the cavity 13 against axial slipping in the cavity 13 .

The pivot joint housing 48 has a first through opening 51 and a second through opening 52 . The first through opening 51 is made in a jacket 55 of the swivel joint housing 48 which extends axially. The second through opening 52 is introduced at the rear axial end of the swivel joint housing 48, which in the installation situation according to 3 and 4 faces away from the first outer axial end 3 of the link 2 .

In the 12 a perspective longitudinal section through the link assembly 50 is shown. The handlebar assembly 50 comprises the handlebar 2 and the brake transmitter assembly 10 with the power transmission device 38, the push rod 46 and the hydraulic cylinder device 68. The brake transmitter assembly 10 is attached to the handlebar 2.

The swivel joint device 47 is accommodated in the swivel joint housing 48 and is arranged completely in the cavity 13 of the tube 12 together with this. The push rod 46 and the hydraulic cylinder device 67 are also completely accommodated in the cavity 13 . The cable 20 runs from the hand lever 18 (see 3 and 4 ) through the opening 14 in the housing 17 and through the first through opening 51 in the pivot joint housing 48 to the pivot joint device 47. For this purpose the first through opening 51 is arranged overlapping with the opening 14 12 . The cable 20 is attached to the hand lever 18 with a first cable end and to the swivel joint device 47 with a second cable end. The cable 20 runs through a free space 53 (see FIG 7 ) in the wraparound section 34 of the housing 17.

For attachment to the hand lever 18, the cable pull 20 has a cylindrical attachment section 44 on the first end of the cable (see FIG 3 and 4 ) on, which is formed in a fitting area 45 formed by the hook elements 26a, 26b of the hand lever 18 (see 5 ) rotatably or alternatively rotatably and/or slidably seated.

For attachment to the swivel joint device 47 according to the 3 , 4 and 12 the cable pull 20 has an engaging cylinder 63 on the second cable end. The engaging cylinder 63 is in the 14 shown in a top perspective view. The engagement cylinder 63 has a weakened point 69 designed as a predetermined breaking point.

In the 13 1 is a plan view of the first outer axial end 3 of the link 2 with a view of the pivot joint device 47 pivotably arranged in the pivot joint housing 48 and of the push rod 46 . The swivel joint device 47 can be swiveled about a joint swivel axis 64, which runs in the same direction and/or parallel to the swivel axis 67, about which the hand lever 18 can be swiveled (see FIG 3 and 4 ).

The swivel joint device 47 comprises a first sheet metal part 57 and a second sheet metal part 58, which are essentially triangular in a lateral plan view. The sheet metal parts 57, 58 are oriented in the same direction and are arranged at a distance from one another in sections. They are connected to one another via a pivot pin 59 of the pivot joint device 47 .

The pivot pin 59 is accommodated in a sliding sleeve 60 of the pivot joint device 47 . A pivot pin bore is introduced into each sheet metal part 57, 58 for connection via the pivot pin 59 arranged in the sliding sleeve 60. The pivot pin 59 is disposed in the pivot pin bores coaxially with the joint pivot axis 64 . The swivel joint housing 48 has according to the 11 as a sliding sleeve receptacle 61, which is integrated into the casing 55 in the form of a transverse bore in the casing 55. The two sheet metal parts 57, 58 can be pivoted about the joint pivot axis 64 in the sliding sleeve receptacle 61 by means of the pivot pin 59.

In each of the sheet metal parts 57, 58, a bore for the engagement cylinder 63 is introduced in a first fastening position 70, which is arranged on the second cable end of the cable 20. The engaging cylinder 63 is, as in the 3 , 4 and 12 shown, held rotatably and/or slidably in the bores. Thus, the cable 20, in particular the second cable end, can be pivoted together with the pivot joint device 47 about the joint pivot axis 64 and at the same time within the bores.

The weakened point 69 in the engagement cylinder 63 is intended to break in the event of a sudden strong tensile load on the traction cable 20, as can occur, for example, if the housing 17 and/or the hand lever 18 is torn off. The pull cable 20 detaches from the swivel joint direction 47 and can protect this and the hydraulic cylinder device 68 connected via the push rod 46 from damage.

How from the 3 , 4 and 12 it can be seen that the push rod 46 is fastened to the swivel joint device 47 in a second fastening position 71 . The push rod 46 can thus be pivoted together with the pivot joint device 47 about the joint pivot axis 64 . The push rod 46 extends through the second through opening 52 ( 11 ) in the swivel joint housing 48 to the hydraulic cylinder device 68.

The push rod 46 has a threaded portion 72 ( 12 ) which is arranged in an area adjacent to a first rod end of the push rod 46 . The first rod end is the in the installation situation 3 , 4 and 12 directed towards the first outer axial end 3 of the link 2 . In or on the first end of the rod, the push rod 46 has a gripping area 73 designed, for example, as a hexagon for a suitable tool, for example a hexagonal wrench.

The swivel joint device 47 has a threaded pin 65 which is arranged in further bores in the sheet metal parts 57, 58 in a rotationally fixed manner. The other holes are introduced in the area in which the sheet metal parts 57, 58 are arranged at a distance from one another (see 13 ) and define the second fastening position 71. The threaded pin 65 has a receiving thread 62 which is positioned in the space between the two sheet metal parts 57, 58. The threaded section 66 of the push rod 46 is screwed into the receiving thread 62 so that the push rod 46 extends axially between the two sheet metal parts 57 , 58 . The push rod 46 can be adjusted in an axial position relative to the swivel joint device 47 and/or relative to the hydraulic cylinder device 68 by means of the threaded section 66 by screwing it in or unscrewing it piece by piece. For this purpose, the closure cap 15 (see 3 and 4 ) are removed from the handlebar 2 and the push rod 46 is screwed in the engagement area 73 with the appropriate tool. Thus, an adjustment of the push rod 46 is possible, for example, to adjust for wear.

the 15 shows an axial longitudinal section through the link 2, in particular the area in which the hydraulic cylinder device 68 is arranged in the cavity 13. The hydraulic cylinder device 68 includes a cylinder housing 74 which forms a pressure cylinder 75 . A hydraulic fluid is arranged in the pressure cylinder 75 and forms a fluid column. The hydraulic cylinder device 68 includes a piston 76 which is mounted elastically in the pressure cylinder 75 on a spiral spring 77 . To generate a hydraulic pressure force, the piston 76 is arranged to be axially movable against a spring force of the spiral spring 77 .

The push rod 46 is positively and/or non-positively connected to a second rod end with the piston 76 . When operating the hand lever 18 (see 3 and 4 ) and/or when the swivel joint device 47 is pivoted, the push rod 46 is displaced axially. The push rod 46 presses on the piston 76 so that it is moved axially in the pressure cylinder 75 or engages in it and generates hydraulic pressure. The brake actuator of the vehicle can be activated by means of the hydraulic pressure force generated in this way.

To seal the pressure cylinder 75, a sealing ring 78 is arranged on the piston 76, which is held by a cap 79 placed on the piston 76. A scraper 80 is arranged on the piston 76 and is also provided for sealing the pressure cylinder 75 . The wiper 80 also serves as a backup for the piston 76. It can pull the piston 76 with it if sealing friction of the sealing ring 78 should prevent or impair the piston 76 from disengaging.

A piston stop 81 for the piston 76 is arranged at a front end of the pressure cylinder 75 which is arranged in relation to the swivel joint device 47 . The piston stop 81 also serves as a transport lock before the hydraulic cylinder device 68 is installed in the cavity 13. The transport lock is used to hold the piston 76 back in the pressure cylinder 75 before installation, despite the prestressed spiral spring 77.

The cylinder housing 74 is in the 16 shown in a perspective side view. It is made of a plastic material. Other materials are also possible within the scope of the invention. In the installation situation of the 15 the cylinder housing 74 points towards the second outer axial end 24 of the link 2 (see 1 ) directed rear end on which a terminal portion 88 is formed. A connector 82 of a hydraulic line 83 of the hydraulic cylinder device 68 is arranged in the connection section 88 . The seat of the connector 82 is in the connecting portion 88 via a in the 17 shown wire form spring 84 secured and fluidically sealed via an O-ring 85.

The connector 82 fluidically connects the hydraulic line 83 to the pressure cylinder 75, so that the hydraulic fluid can flow from the pressure cylinder 75 into the hydraulic line 83 during the axial movement of the piston 76 and can transmit the hydraulic pressure force. The hydraulic line 83 is fluidically connected directly or indirectly to the vehicle's brake actuator, so that it can be activated by introducing the hydraulic pressure force.

At the rear end, the cylinder housing 74 has a screw receptacle 89 in which a vent screw 86 is arranged, by means of which the pressure cylinder 75 and the hydraulic line 83 and/or a hydraulic circuit comprising both can be vented. A plurality of elevations 90 are provided on the screw receptacle 89 in order to ensure that the venting screw 86 is prestressed when the plastic material of the cylinder housing 74 creeps or flows. The venting takes place in particular immediately after the connector 82 has been inserted into the connection section 88 as part of the assembly of the linkage arrangement 50. The screw receptacle 89 is fluidically sealed with respect to the pressure cylinder 75 by a further O-ring 87 which sits on the venting screw 86.

According to the 15 the hydraulic cylinder device 68 comprises at least one, for example two, support rods 91 which are arranged to support the cylinder housing 74 axially and to secure its position in the cavity 13. At its rear end, the cylinder housing 74 has at least one, preferably two, support areas 92 (see FIG 16 ), in which the support rods 91 are supported, in particular positioned without slipping.

The hydraulic cylinder device 68 also includes a support disc 93, which in the 18 shown in a top perspective view. The support disc 93 is according to the 15 arranged in the cavity 13 of the tube 12 and is supported axially on a constriction 94 of the tube 12 from. The support disc 93 has a receiving bore 95 for each support rod 91. The support rods 91 are inserted in the receiving bores 95 and are securely held therein. The support rods 91 can be adjusted to an axial length of the handlebar 2 in order to securely position the hydraulic cylinder device 68 regardless of the length.

The support disc 93 has a passage 96 through which the hydraulic line 83 according to the 15 can be led. From there, the hydraulic line 83 extends through the constriction 94 to the brake receiver of the vehicle 1.

Reference List

1

vehicle

2

handlebars

3

first outer axial end

4

front wheel

5

rear wheel

6

framework

7

frame bar

8th

wheel fork

9

braking system

10

Brake master arrangement

11

edge area

12

pipe

13

cavity

14

opening

15

sealing cap

16

sheathing

17

casing

18

hand lever

19

fastening device

20

cable pull

21

resetting devices

22

axis device

23

operating surface

24

second outer axial end

25

hook device

26a, b

hook elements

27

attack interfaces

28

lower stop elements

29

lower limit stop

30

axle seat

31

upper stop elements

32

upper end stop

33

recording section

34

wraparound section

35a, b

side walls

36

connection interfaces

37

connection counter interfaces

38

power transmission device

39

holes

40

other upper stop elements

41

top wall

42

further lower stop elements

43

mounting interface

44

attachment section

45

mounting area

46

push rod

47

swivel joint device

48

swivel joint housing

49

bead

50

handlebar arrangement

51

first passage opening

52

second passage opening

53

blank

54

fastening clamp

55

coat

56

inner space

57

first sheet metal part

58

second sheet metal part

59

pivot pin

60

sliding sleeve

61

sliding sleeve mount

62

receiving thread

63

engagement cylinder

64

joint pivot axis

65

grub screw

66

threaded section

67

pivot axis

68

hydraulic cylinder device

69

weak point

70

first mounting position

71

second mounting position

72

threaded section

73

attack range

74

cylinder body

75

pressure cylinder

76

Pistons

77

spiral spring

78

sealing ring

79

cap

80

scraper

81

piston stop

82

connector

83

hydraulic line

84

wire form spring

85

o ring

86

bleed screw

87

another O-ring

88

connector section

89

screw mount

90

increases

91

support poles

92

support areas

93

support washer

94

constriction

95

locating holes

96

passage

B

operating position

f

driving direction

R

rest position

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202018004603 U1 [0003]
• DE 102017106353 A1 [0004]

Claims (10)

Brake transmitter arrangement (10) for a braking system of a vehicle (1), wherein the brake transmitter arrangement (10) can be arranged on a handlebar (2) of the vehicle (1), with a hydraulic cylinder device (68) for activating a brake calliper of the vehicle, the hydraulic cylinder device ( 68) comprises a cylinder housing (74) and a piston (76), the cylinder housing (74) forming a pressure cylinder (75), the piston (76) being arranged in the pressure cylinder (75) so that it can move axially, with a hand lever (18 ), wherein the hand lever (18) can be pivoted about a pivot axis (67) when an actuating force (F) is introduced, with a push rod (46) for transmitting the actuating force (F) to the hydraulic cylinder device (68), characterized by a force transmission device (38 ) to transmit the actuating force (F) from the hand lever (18) to the push rod (46). Brake transmitter assembly (10) after claim 1 , characterized in that the power transmission device (38) comprises a cable (20). Brake transmitter assembly (10) after claim 1 or 2 , characterized in that the power transmission device (38) comprises a swivel joint device (47) that can be swiveled about a joint swivel axis (64), the joint swivel axis (64) being oriented in the same direction and/or parallel to the swivel axis (67) of the hand lever (18). Brake transmitter assembly (10) after claim 3 , characterized in that the cable (20) has a first cable end and a second cable end, the first cable end being attached to the hand lever (18) and the second cable end being attached to the swivel joint device (47), the second cable end being jointly can be pivoted with the pivot joint device (47) about the joint pivot axis (64). Brake transmitter assembly (10) after claim 4 , characterized in that the second cable end has a weakened point (69) for breaking and for detaching from the swivel joint device (47) in the event of excessive and/or jerky application of force. Brake transmitter arrangement (10) according to one of claims 3 until 5 , characterized in that the push rod (46) is connected to the swivel joint device (47), the push rod (46) having a threaded section (72) by means of which an axial positioning of the push rod (46) relative to the swivel joint device (47) and / or is adjustable to the hydraulic cylinder device (68). Brake transmitter arrangement (10) according to one of claims 3 until 6 , characterized in that the push rod (46) is connected at the end to the piston (76), the push rod (46) being axially displaceable when the swivel joint device (47) is pivoted about the joint swivel axis (64) in order to move the piston (76) to move axially in the pressure cylinder (75). Link arrangement (50) with a brake transmitter arrangement (10) according to one of the preceding claims and with a link (2) for a vehicle (1), the brake transmitter arrangement (10) being fastened to the link (2). handlebar arrangement claim 8 , characterized in that the link (2) has a cavity (13) and an opening (14) leading into the cavity (13), wherein the swivel joint device (47), the push rod (46) and/or the hydraulic cylinder device (68) is/are arranged in the cavity (13) and/or wherein the cable pull (20) extends from the hand lever (18) through the opening (14) to the swivel joint device (47). Vehicle (1) with the link assembly (50). claim 9 .

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