DE529513C - Braking device - Google Patents

Braking device

Info

Publication number
DE529513C
DE529513C DEB142972D DEB0142972D DE529513C DE 529513 C DE529513 C DE 529513C DE B142972 D DEB142972 D DE B142972D DE B0142972 D DEB0142972 D DE B0142972D DE 529513 C DE529513 C DE 529513C
Authority
DE
Germany
Prior art keywords
valve
braking device
brake
stroke
short
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEB142972D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DEB139259D external-priority patent/DE540378C/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DEB142972D priority Critical patent/DE529513C/en
Priority to AT127142D priority patent/AT127142B/en
Application granted granted Critical
Publication of DE529513C publication Critical patent/DE529513C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/241Differential pressure systems
    • B60T13/246The control valve is provided apart from the servomotor cylinder
    • B60T13/247Mechanical command of the control valve, mechanical transmission to the brakes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/241Differential pressure systems
    • B60T13/242The control valve is provided as one unit with the servomotor cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/241Differential pressure systems
    • B60T13/246The control valve is provided apart from the servomotor cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66Electrical control in fluid-pressure brake systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

Bremseinrichtung nach Patent 527302 Das Hauptpatent 527 3o2 betrifft eine durch einen Über- oder Unterdruck bewegte Bremse mit elektromagnetisch .angetriebenem Steuerglied, das seinen AntrIebsstrom gesteuert erhält durch ein Kontaktpaar, dessen. .einer Kontakt an einem mit dem Bremskolben gekuppelten Bremshebel befestigt ist und dessen anderer Kontakt vom Fahrer gegen den mit dem Bremshebel wandernden ersten Kontakt gedrückt werden -mußy wenn die Bremse eingeschaltet bleiben soll. Als Steuerventil ist bei dieser Bremse ein sich aufsetzendes Ventil verwendet, dessen Schaft in einem Gleitlager gelagert ist. Dieses Ventil muß rasch zwischen seinen Endstellungen für Abschluß der Außenluft bzw. des Druckmittels hin und her schwingen können, damit das Arbeiten des Ventils nur als leichtes Vibrieren am Bremshebel bemerkbar ist und der Bremsdruck -ohne nennenswerte Schwankungen auf jeden beliebigen Wert eingestellt werden kann. Es müssen deshalb alle Widerstände, die der leichten Beweglichkeit des Ventils hinderlich sind, beseitigt werden. Braking device according to patent 527302 The main patent 527302 relates to a brake that is moved by overpressure or underpressure and has an electromagnetically driven control element that receives its drive current controlled by a pair of contacts. .one contact is attached to a brake lever coupled to the brake piston and the other contact is pressed by the driver against the first contact moving with the brake lever -musty if the brake is to remain switched on. In this brake, the control valve used is a seated valve, the shaft of which is mounted in a plain bearing. This valve must be able to swing back and forth quickly between its end positions to close off the outside air or the pressure medium so that the valve's operation is only noticeable as a slight vibration on the brake lever and the brake pressure can be set to any value without significant fluctuations. It is therefore necessary to remove all resistances that prevent the valve from moving easily.

Erfindungsgemäß wird deshalb das kurzhubige, rasch schwingende Ventil dieser Bremse in bekannter Weise in einer :oder mehreren dünnen, federnd nachgiebigen Scheiben aufgehängt, so daß bei dem geringen Hub des Ventilkörpers fast keine mechanischen Bewegungswiderstände auftreten. Derartige Scheiben sind zwar schon z. B. bei elektrischen Relais bekannt, um schwingende Kontakte zu lagern, und sie sind auch bei andersartigen Ventilen zur Steuerung gebräuchlich. Die Erfindung wird jedoch in der Verwendung derartiger Scheiben zur Führung des kurzhubigen, rasch schwingenden Ventils für die Bremse nach dem Hauptpatent 527 302 erblickt, weil dadurch die Wirkungsweise und Betriebssicherheit dieser Bremse wesentlich verbessert wird.According to the invention, therefore, the short-stroke, rapidly oscillating valve this brake in a known manner in one: or more thin, resiliently flexible Discs suspended, so that with the small stroke of the valve body almost no mechanical Resistance to movement occurs. Such discs are already z. B. in electrical Relays are known to support oscillating contacts, and they are also with different types Valves commonly used for control. However, the invention is in use such discs to guide the short-stroke, rapidly oscillating valve for the brake according to the main patent 527 302 sees, because thereby the mode of operation and operational safety of this brake is significantly improved.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung skizziert, und zwar zeigt Abb. z einen Längsschnitt eines an den Bremszylinder angebauten Ventilsatzes und Abb. 2 einen Schnitt nach der Linie A-A der Abb. z.An embodiment of the invention is outlined in the drawing, namely Fig. z shows a longitudinal section of a valve set attached to the brake cylinder and Fig. 2 is a section along the line A-A of Fig.

a ist der Zylinder einer Bremse nach Patent 527 302. Von dem Bremszylinder aus führt ein Kanal b in die Kammer eines Ventilgehäuses c, das durch einen Kanal d mit der Saugleitung des Antriebsmotors und durch einen d gegenüberliegenden Kanal c mit der Außenluft verbunden ist. In dem Gehäuse c ist außerdem ein Topfmagnet f mit Wicklung g untergebracht. Die Wicklung ist durch die Leitung h mit dem nicht gezeichneten Schalter am Bremshebel und über diesen mit der Batterie verbunden, während die Leitung i zur Masse geführt ist, an der auch die andere Klemme der Batterie liegt.a is the cylinder of a brake according to Patent 527 302. From the brake cylinder from a channel leading b into the chamber of a valve housing c, which is connected to the outside air through a conduit d to the suction line of the drive motor, and c by a d opposite channel. A pot magnet f with winding g is also accommodated in the housing c. The winding is connected by line h to the switch (not shown) on the brake lever and via this to the battery, while line i is routed to ground, which is also connected to the other terminal of the battery.

In der Ventilkammer ist ein Tellerventil, zwischen dessen- beide Teile k, m eine dünne Scheibe eingeklemmt ist. Längs ihres Umfangs ist die dünne Scheibe n am Ventilgehäuse C befestigt. Sie hat Schlitze t oder Aussparungen, derart, daß die eingespannte Mitte sich parallel zum Umfang verschieben und der Druck in der Ventilkammer sich ausgleichen kann. Zu beiden Seiten des Ventilkörpers k, m sind Gummidichtungen o und p angebracht. Der Schaft g des Ventils ist nicht so stark wie die Bohrung e, so daß die Ventilkammer über den Kanal c und Schlitze r im Ventilgehäuse mit der Außenluft in Verbindung gebracht werden kann. Das Ende des Schaftes g des kurzhubigen Ventils k, m ist meinem Gleitlager s gelagert.In the valve chamber is a poppet valve, between the two parts k, m of which a thin disk is clamped. The thin disk n is attached to the valve housing C along its circumference. It has slots t or recesses such that the clamped center can move parallel to the circumference and the pressure in the valve chamber can equalize. Rubber seals o and p are attached to both sides of the valve body k, m. The stem g of the valve is not as strong as the bore e, so that the valve chamber can be brought into communication with the outside air via the channel c and slots r in the valve housing. The end of the shaft g of the short-stroke valve k, m is supported by my plain bearing s.

Beim Schließen des Stromkreises vom Bremshebel aus zieht der Magnet das gleichzeitig als Anker dienende Ventil k, m an, welches durch die Unterdruckseite-d öffnet und den Außenluftkanal e schließt. Beim Unterbrechen des Stromkreises bewegt sich das Ventil infolge des überdrucks der Außenluft wieder in seine Anfangslage zurück und unterbricht die Bremsung. Wenn der Bremsdruck auf einer bestimmten Höhe gehalten werden soll, muß das Ventil h, m bei dieser Bremse rasch zwischen seinen Endstellungen hin und her schwingen. Deshalb müssen die mechanischen Bewegungswiderstände möglichst gering gehalten werden. Durch die Er-Endung ist dies erreicht, denn die geschlitzte dünne Scheibe bietet dem schwingenden Ventil bei seinem kurzen Hub fast keinen Widerstand, und auch die Reibung in dem von Seitendrücken kaum belasteten Lager s ist praktisch unbedeutend. Das Lager s wird zweckmäßig aus einem Stoff, der praktisch keiner Schmierung bedarf, oder aus einer elastischen Masse hergestellt. Auch kann an Stelle des Gleitlagers eine zweite dünne Scheibe verwendet werden.When the circuit is closed from the brake lever, the magnet attracts the valve k, m , which also serves as an armature, which opens through the negative pressure side-d and closes the outside air duct e. When the circuit is interrupted, the valve moves back to its starting position due to the excess pressure of the outside air and interrupts the braking. If the brake pressure is to be kept at a certain level, the valve h, m must quickly swing back and forth between its end positions in this brake. Therefore, the mechanical resistance to movement must be kept as low as possible. This is achieved by the Er-ending, because the slotted thin disc offers the oscillating valve almost no resistance during its short stroke, and the friction in the bearing s, which is hardly loaded by side pressures, is practically insignificant. The bearing s is expediently made of a material that practically requires no lubrication, or of an elastic mass. A second thin disk can also be used instead of the plain bearing.

Claims (1)

PATENTANSPRÜCHE: i.. Bremseinrichtung nach Patent 527 3o2, dadurch gekennzeichnet, daß das kurzhubige, rasch schwingende Ventil (o, p) in bekannter Weise meiner oder mehreren dünnen, federnd nachgiebigen Scheiben aufgehängt ist, um seinen Bewegungswiderstand zu verkleinern. z. Bremseinrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Scheiben dünne Metallblätter (h) sind, die für den Druckausgleich in der Ventilkammer durchbohrt sind. 3. Bremseinrichtung nach den Ansprüchen i und z, dadurch gekennzeichnet, daß bei einem Ventil mit Schaft (g) an einer wenig belasteten Stelle ein Gleitlager (s) angeordnet ist, das. aus einen* Stoff, der praktisch keiner Schmierung bedarf, oder aus einer elastischen Masse besteht. 'PATENT CLAIMS: i .. Braking device according to patent 527 3o2, characterized in that the short-stroke, rapidly oscillating valve (o, p) is suspended in a known manner from my or several thin, resilient discs in order to reduce its resistance to movement. z. Braking device according to claim i, characterized in that the disks are thin metal sheets (h) which are drilled through for pressure equalization in the valve chamber. 3. Braking device according to claims i and z, characterized in that a slide bearing (s) is arranged in a valve with a shaft (g) at a lightly loaded point, which. Made of a * substance that requires practically no lubrication, or from consists of an elastic mass. '
DEB142972D 1927-10-03 1929-04-08 Braking device Expired DE529513C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEB142972D DE529513C (en) 1927-10-03 1929-04-08 Braking device
AT127142D AT127142B (en) 1928-09-07 1930-03-27 Braking device with auxiliary drive.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE298130X 1927-10-03
DEB139259D DE540378C (en) 1928-09-07 1928-09-07 Control valve for a pressure medium brake of motor vehicles
DEB142972D DE529513C (en) 1927-10-03 1929-04-08 Braking device

Publications (1)

Publication Number Publication Date
DE529513C true DE529513C (en) 1931-07-14

Family

ID=27188407

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB142972D Expired DE529513C (en) 1927-10-03 1929-04-08 Braking device

Country Status (1)

Country Link
DE (1) DE529513C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945900C (en) * 1952-12-05 1956-07-19 Herbert Rauch Pressure regulator for air brakes of motor vehicles and. like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945900C (en) * 1952-12-05 1956-07-19 Herbert Rauch Pressure regulator for air brakes of motor vehicles and. like

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