Braking resistance when moving backwards

DE202013011032U1 - Inertia power brake with automatic reversing for passenger car trailers - Google Patents

Inertia power brake with automatic reversing for passenger car trailers Download PDF

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Publication number
DE202013011032U1
DE202013011032U1DE201320011032DE202013011032UDE202013011032U1DE 202013011032 U1DE202013011032 U1DE 202013011032U1DE 201320011032 DE201320011032 DE 201320011032DE 202013011032 UDE202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 UDE 20201301DE 202013011032 U1DE202013011032
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Germany
Prior art keywords
brake
trailer
lever
braking
passenger car
Prior art date
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Expired - Lifetime
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DE201320011032
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English (en)
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Josef Heindl
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Application filed by Josef HeindlfiledCriticalJosef Heindl
Priority to DE201320011032priorityCriticalpatent / DE202013011032U1 / de
Publication of DE202013011032U1publicationCriticalpatent / DE202013011032U1 / de
Expired - Lifetimelegal-statusCriticalCurrent
Anticipated expirationlegal-statusCritical

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  • 239000012530fluidSubstances0.000claimsabstract3
  • 239000002965ropeSubstances0.000claimsdescription7
  • 239000000428dustSubstances0.000claimsdescription5
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  • 238000005096 rolling processMethods0.000description2
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Classifications

    • B — PERFORMING OPERATIONS; TRANSPORTING
    • B60 — VEHICLES IN GENERAL
    • B60T — VEHICLE 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
    • B60T7 / 00 — Brake-action initiating means
    • B60T7 / 12 — Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7 / 20 — Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
    • B — PERFORMING OPERATIONS; TRANSPORTING
    • B60 — VEHICLES IN GENERAL
    • B60T — VEHICLE 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 / 00 — Transmitting 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 / 02 — Transmitting 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 mechanical assistance or drive
    • B60T13 / 06 — Transmitting 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 mechanical assistance or drive by inertia, e.g. flywheel
    • B60T13 / 08 — Overrun brakes

Abstract

Description

  • The present invention relates to an inertial power brake for passenger car trailers which does not transmit the overrun thrust force directly to the brake via linkage, cables or hydraulic equipment, but converts the inertial force into braking force when braking. The principle of inertia is not activated when reversing slowly, so that conventional mechanical automatic reversing can be dispensed with.
  • There are numerous patents of conventional mechanical and hydraulic trailer overrun brakes such as: B.,, etc., most of which have also been equipped with a so-called automatic reverse function () in the last 25 years or so.
  • In general, when reversing with a mechanical automatic reversing system, a braking process with a braking resistance of up to twenty percent occurs, which is, however, caused by the corresponding technical characteristics of the brake, i.e. H. is weakened or largely canceled by an automatic reverse function, provided the braking system is correctly adjusted.
  • Overrun brakes on passenger car trailers with conventional automatic reversing, which has been mandatory since 01.01.1991, should be improved because
    • • When reversing, you always initiate braking first, which may lead to the drive wheels of the towing vehicle slipping,
    • • When a trailer is rolling backwards, releasing the handbrake requires a lot of effort due to the automatic reversing and does not always work reliably because your brake shoes are not automatically adjusted,
    • • the brakes, ropes and rods have to be readjusted frequently by hand and require constant maintenance,
    • • They are generally out of the question for the use of disc brakes.
  • If one follows the numerous complaints and inquiries on the Internet about the problems raised by caravan owners on this subject, one comes to the conclusion that they are cumbersome and should therefore be technically improved.
  • This is where the inertia power brake according to the invention comes into play, which is equally suitable for hydraulic as well as mechanical and for drum and disc brakes. Known trailer brakes are optimally improved and, above all, made even more roadworthy, because trailers rolling backwards can be braked just as easily and reliably with the handbrake as those moving forward can be braked with the handbrake or inertia brakes.
  • The present invention is a dust- and splash-proof housing between the drawbar or under the trailer floor, matched to the trailer load weights on at least two levers that cooperate in their forward rotational movement, which when braked by the inertial force in a horizontal position Swing the direction of travel and transfer the pressure generated by this to the hydraulic or mechanical trailer brake via a hydraulic master brake cylinder or a lever transmission or via rods / cables. No braking is initiated during slow, jerk-free reverse travel because the inertial force does not come into play. The weights on the left and right in the direction of travel on appropriately long levers act through mechanical devices such B. synchronously via gears and rack so that they not only initiate a braking process through their overrun thrust, but also compensate for their own weights, which are different due to this up / down position, when braking when the trailer is tilted sideways. The fulcrum of the two levers is equipped with a worm-like bearing or a device with the same effect, which lifts the two levers vertically in the direction of travel when they turn due to the braking, so that the two levers with the weights after the vehicle has come to a standstill by their own weight and thereby to independently rotate backwards return to their original position provided for lever mounting, d. This means that the brake is released again when the vehicle comes to a standstill. For intended extreme gradients when reversing, you can also support or accelerate the return of the two levers to their starting position by means of a return device reinforced by the trailer electrics. Since January 1, 1987, passenger cars must be equipped with at least one reversing light, the power supply of which can be used to control the return device.
  • Further details, advantages and features emerge from the following description of an exemplary embodiment shown schematically in the drawing, as well as from the subsequent claims.
  • the top view of a hydraulic inertia brake
  • the top view of a mechanical inertia power brake
  • shows the dust- and splash-proof inertial force control housing between the drawbar of the chassis of a passenger car trailer. In this housing there are two pendulum levers with weights matched to the trailer load at their outer end, the push rod of the lever transmission parts, which together transmit the inertial force movement that occurs during braking to the master brake cylinder and via the brake lines in or on the respective brake (drum or disc brake) convert into braking force. A lifting device causes the levers and their flyweights to be simultaneously lifted when the pendulum turns forwards, which, due to their own weight, fall back into the rest position after the end of the braking process when the vehicle is stationary, even on a slope.
  • The handbrake operates the brake via a spring-loaded linkage and via the push rod of the lever transmission parts and the master brake cylinder. If the trailer is lost, the tear-off safety cable triggers emergency braking via the handbrake, the spring-loaded linkage, the push rod of the lever transmission parts, the master brake cylinder, the brake lines and the respective brake.
  • shows the dust- and splash-proof inertial force control housing between the drawbar of the chassis of a passenger car trailer. In the housing are the two pendulum levers with weights matched to the trailer load at their outer end, the push rod of the lever transmission parts, which together transmit the inertial force movement generated during braking via the reversing lever to the usual brake cables / linkage and initiate braking.
  • The breakaway safety rope and the handbrake trigger braking via the spring-loaded linkage, the push rod of the lever transmission parts () and the reversing lever, which is connected to the brake cables / linkages.
  • QUOTES INCLUDED IN THE DESCRIPTION
  • This list of the documents listed 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.
    • DE 0002413131 C2 [0002]
    • DE 0008905939 U1 [0002]
    • DE 0009217449 U1 [0002]
    • DE 0068908387 T2 [0002]

Claims (7)

  1. Inertial power brake for passenger car trailers, characterized, that at least two pendulum levers () housed in a dust- and splash-proof housing () on, in or between the trailer chassis () with weights matched to the trailer load at their outer end when the trailer is braked by the force of inertia and by means of the Swing the lever transmission parts () synchronously and horizontally in the direction of travel and the pressure generated via the rod of the lever transmission parts () acts on a hydraulic master brake cylinder (), which guides the brake fluid through the brake lines () to the wheel brake cylinders and initiates braking.
  2. Inertial power brake for passenger car trailers, characterized, that at least two pendulum levers () housed in a dust- and splash-proof housing () on, in or between the trailer chassis () with weights matched to the trailer load at their outer end when the trailer is braked by the force of inertia and by means of the Swing the lever transmission parts () synchronously and horizontally in the direction of travel and transfer the pressure generated via the rod of the lever transmission parts (), the reversing lever () and the brake cables / linkage () to a mechanical trailer brake and initiate braking.
  3. Inertia power brake for passenger car trailers according to claim 1, characterized, that the master brake cylinder () can also be two cylinders for a dual-circuit brake.
  4. Inertia power brake for passenger car trailers according to claim 1, characterized, that if a trailer is lost, the breakaway safety cable () via the handbrake (), the spring-loaded linkage () and the lever transmission parts () actuates the hydraulic master brake cylinder (), which guides the brake fluid via the brake lines () to the wheel brake cylinders and initiates emergency braking.
  5. Inertia power brake for passenger car trailers according to claim 2, characterized, that if a trailer is lost, the tear-off safety rope () initiates emergency braking via the handbrake (), the spring-loaded linkage (), the lever transmission parts (), the reversing lever () and the brake cables / linkage ().
  6. Inertia power brake for passenger car trailers according to claims 1 and 2, characterized, that a lifting device () by its nature lifts the pendulum lever with its weights () vertically when it rotates in the direction of travel due to the braking, returns it to the starting position after braking and thus releases the brake again and that it also moves it into up to a slope determined by its construction in the starting position.
  7. Inertia power brake for passenger car trailers according to claims 1 and 2, characterized, that the pendulum levers with their weights () are returned to their starting position via the lever transmission parts () by an electrically generated force (), which is preferably automatically controlled via the power supply to the reversing lights, if this is due to the too steep incline when reversing by the lifting device () can no longer take place because the slope determined by its construction is exceeded.
DE2013200110322013-12-102013-12-10 Inertia power brake with automatic reversing for passenger car trailers Expired - LifetimeDE202013011032U1 (de)

Priority Applications (1)

Application NumberPriority DateFiling dateTitle
DE201320011032DE202013011032U1 (de) 2013-12-102013-12-10Inertia power brake with automatic reversing for passenger car trailers

Applications Claiming Priority (1)

Application NumberPriority DateFiling dateTitle
DE201320011032DE202013011032U1 (de) 2013-12-102013-12-10Inertia power brake with automatic reversing for passenger car trailers

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ID = 50153747

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DE201320011032Expired - LifetimeDE202013011032U1 (de) 2013-12-102013-12-10Inertia power brake with automatic reversing for passenger car trailers

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Citations (2)

Publication numberPriority datePublication dateAssigneeTitle
DE2413131C2 (de) 1973-03-201991-03-07F.T.F. S.A., Louhans, Saone Et Loire, Fr
DE68908387T2 (de) 1989-01-271994-03-10Thibault Essieux RtnOverrun brake for a towed vehicle, for example a trailer with automatic braking suppression when reversing.

Patent Citations (2)

Publication numberPriority datePublication dateAssigneeTitle
DE2413131C2 (de) 1973-03-201991-03-07F.T.F. S.A., Louhans, Saone Et Loire, Fr
DE68908387T2 (de) 1989-01-271994-03-10Thibault Essieux RtnOverrun brake for a towed vehicle, for example a trailer with automatic suppression of braking when reversing.

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