SE123781C1

SE123781C1 -

Info

Publication number: SE123781C1
Authority: SE
Publication date: 1948-01-01

Description

KLASS 63 c:54/03 BESKRIVNING OFFENTLIGGJORD AV KUNGL. PATENT- OCH REGISTRERINGSVERKET BEVIDAT DEN 11 NOVEMBER 1948 PATENTTID FRAN DEN 28 JUNI 1946 PUBLICERAT DEN 11 JANUAR! 1949 Ans. den "/, 1946, ni. 5813/1946. Mein en ritning. CLASS 63 c: 54/03 DESCRIPTION PUBLISHED BY KUNGL. PATENT AND REGISTRATION AGENCY GRANTED ON NOVEMBER 11, 1948 PATENT PERIOD FROM JUNE 28, 1946 PUBLISHED ON JANUARY 11! 1949 Ans. den "/, 1946, ni. 5813/1946. Mein en ritning.

AKTIEBOLAGET ROBO, STOCKHOLM. AKTIEBOLAGET ROBO, STOCKHOLM.

Anordning for att hindra eller hejda spinnande av Over differential- vaxlar drivna hjul pa motorfordon. tippfinnare: 0. E. Bohr. Device for preventing or stopping the spinning of wheels driven by motors over differential gears. tipper: 0. E. Bohr.

Man kan forhindra, all ett motorfordons over en differentialvaxel drivna hjul spinner genom aft bromsa detsamma. Sker bromsningen individuellt for .det spinnande hjulet, d. v. s. utan att de ovriga hjulbromsarna samtidigt paverkas, erhalles okad dragkraft pa det joke spinnande drivhjulet (eller driyhjulen). It is possible to prevent all the wheels of a motor vehicle driven by a differential shaft from spinning by braking the same. If the braking is done individually for the spinning wheel, i.e. without the other wheel brakes being affected at the same time, increased traction is obtained on the joke spinning drive wheel (or drive wheels).

I enlighet med foreliggande uppfinning kan en dylik individuell inbromsning av ett spinnande drivhjul pa ett enkelt satt ske genom att i bromsledningen till vardera drivlijulet saval som i bromsledningarna till de joke drivna hjulen — for de sistnamnda eventuellt i en for hjulen gemensam bromsledning — är anordnad en avsparrningsventil, vars avsparrningskropp är i avstangningsriktningen paverkbar av en medelst en yid forareplatsen anbringad strOmbrytare kontrollerad solenoid och i oppningsriktningen av en aterforingsfjader samt anordnad att kvarhallas i stangt lage ,ay det fluidumtryek, som uppkommer genom efter avstangningen foretagen bromsning med fordonets ordinarie manoverorgan, oberoende av solenoidens verkan. In accordance with the present invention, such individual braking of a spinning drive wheel can be effected in a simple manner by arranging in the brake line to each drive wheel as well as in the brake lines of the joke driven wheels - for the latter possibly in a brake line common to the wheels - a shut-off valve, the shut-off body of which is actuated in the direction of shut-off by a solenoid controlled by a switch arranged by means of a driver 's seat and in the opening direction of a return spring and arranged to be retained in a closed position. the effect of the solenoid.

. I det foljande beskrives lampliga utforingsformer vid elektromagnetisk ventilmanovrering, varigenom anordningen blir enkel samt toga kostsam i tillverkning och inmontering, varjamte vidstrackta variationsmojligheter med hansyn till forekommande motorfordonstyper erhallas. Beskrivning och ritning ansluta sig narmast till hydrauliska bromsar, men principiellt blir utforandet detsamma f8r pneumatiska bromsar. . In the following, suitable embodiments for electromagnetic valve maneuvering are described, whereby the device becomes simple and expensive in manufacture and installation, and extensive possibilities for variation with regard to existing motor vehicle types are obtained. Description and drawing are closest to hydraulic brakes, but in principle the design is the same for pneumatic brakes.

A bifogade ritning visar fig. 1 ett for andamalet lamplig avspdrrningsventil. Fig. 2-4 visa olika strombrytareanordningar, och fig. 5 askadliggor schematiskt hela bromssystemet. Fig. 1 visar en ventil, aysedd att inskruvas i en hjulbromsledning, lampligen vid hjulets bromsskold i intaget till hjulbromscylindern. Om, .som ofta är fallet, tryckfluidet till bromscylindrarna for en icke drivande axels hjulpar, t. ex. de styrande framhjulen pa en ordiniir bil, forst framgar i en gemensam led-fling Iran Iran huvudeylindern och sedan grenar sig till de bada hjulen, kan ventilen vara gemensam fOr hada hjulbromsarna och anbringas lampligen i grenrorsforskruyningen. Drivande hjul fordra daremot alltid var sin ventil. In the accompanying drawing, Fig. 1 shows a shut-off valve suitable for the second. Figs. 2-4 show different circuit breaker devices, and Fig. 5 schematically illustrates the entire brake system. Fig. 1 shows a valve, intended to be screwed into a wheel brake line, suitably at the wheel brake shield in the inlet to the wheel brake cylinder. If, as is often the case, the pressure fluid to the brake cylinders for a pair of non-driving axle wheels, e.g. the steering front wheels of an ordinary car, first appear in a common joint-fling Iran Iran master cylinder and then branch to the two wheels, the valve may be common for the wheel brakes and be fitted appropriately in the manifold fitting. Driving wheels, on the other hand, always require their own valve.

Ventilen bestar av ett omagnetiskt holje 1 av massing eller dylikt, som tjanstgor som ledning for det i pilens riktning inkomman.de fluidet, en i delta hOlj e axiellt mot en Aterforingsfjader 2 fOrskjutbar jarnkarna 3, ett ventilsate 4, mot vilket jd.rnkarnans som avsparrningskropp utbilda.de ena ande 5 trycker i avsparrningslage, samt en utanfor holjet 1 anbragt magn.etspole 6, som sattes i och ur funktion genom in- och urkoppling av fordonets .elektriska stromkrets. Jarnkarnan 3 ar forsedd med axiella spar 7 for bromsfluidet. The valve consists of a non-magnetic casing 1 of massing or the like, which serves as a conduit for the fluid coming in the direction of the arrow, an iron shaft 3 displaceable axially towards a return spring 2, a valve seat 4, against which the iron core which recess body is formed. One end 5 presses in the recess position, as well as a magnetic coil 6 arranged outside the housing 1, which is put into and out of operation by switching the electrical circuit of the vehicle on and off. The iron core 3 is provided with axial grooves 7 for the brake fluid.

Genom en .elektrisk strombrytare, lampligen anbringad intill forarens ratt, och forsedd med egen aterforingsfjader, kan fOraren avsparra ventilen. Vid pafOljande bromsning med pedalen trycker bromsfluid.et pa avsparrningskroppen, i detta fall jarnkdrnan 3, varfor foraren kan slappa strombrytaren, som da automatiskt atergar till sitt normallage, medan ventilen pa grund av bromstrycket alltjamt forblir avsparrad. Sa snarl bromsningen upphort, atergar ventilens avsparrningskropp under inverkan av fjadern 2 omedelhart till sitt normala, icke avsparrande lage. By means of an electric switch, suitably mounted next to the driver's steering wheel, and equipped with its own feedback spring, the driver can cut off the valve. During subsequent braking with the pedal, the brake fluid presses on the cut-off body, in this case the iron core 3, so that the driver can release the switch, which then automatically returns to its normal position, while the valve still remains shut off due to the brake pressure. As soon as braking has ceased, the valve recess body, under the action of the spring 2, immediately returns to its normal, non-recessing position.

Har nu vane hjulbromsledning en ventil med motsvarande strombrytare yid forareplatsen, kan genom paverkan ,av tva eller flera strombrytare ett spinnande hjul eller event. flera spinnbenagna hjul inbromsas individuellt. Strombrytarna maste darvid kvarhallas manuellt pa grund ay aterforingsfjadrarna, tills bromsen ansattes. If the wheel brake line is now accustomed to a valve with a corresponding circuit breaker yid the driver's seat, a spinning wheel or event can be affected by two or more circuit breakers. several spinning wheels are braked individually. The circuit breakers must be retained manually due to the return springs until the brake is applied.

Enklare och mera .effektivt är vid dylik reglering, att de i enlighet med fig. 2 individuellt yerkande strombrytarna 8, 9, 10 °A 2— — 11 icke aro fjfiderbelastade, men aft de kombineras med en gemensam fjaderbelastad huvudstrOmbrytare 12. De form tjanstgora darvid sum en variationsrik forvaljareanordning, vilket sarskilt for motorfordon med flera drivande axlar och motsvarande antal differentinier (dels mellan drivhjulen pa varje axel och dels mellan varje drivaxel) Sr ay. fOrdel. Ledningarna 13, 14, 15, 16 aro anslutna till var sin magnetspole for respektive ventiler i de olika bromsledningarna. Batteriet betecknas med 17, och de elektriska ledningarna aro anslutna till massan vid 18 och 19. Om t. ex, det mot ledningen 13 svarande hjulet shall individuellt hromsas, tillslar man forst strombrytarna 8, 10 och 11 och darefter huvudstrombrytaren 12. Darigenom stangas de mot ledningarna 14, 15 och 16 svarande ventilerna. Sedan bromspedalen nedtryckts, banes namnda ventiler i stangt lage under inverkan -av bromsfluidets tryck, och huvudstrornhrytaren 12 kan slappas, varefter den under inverkan av fjadern 20 atergar till det a ritningen visade laget. Nar sedan brom,spedalen slappes, aterfOras de tre ventilerna av sina aterforingsfjadrar 2 till oppet lage. It is simpler and more efficient in such a regulation that the individually switching switches 8, 9, 10 ° A 2 - - 11, which are individually acting in accordance with Fig. 2, are not spring-loaded, but are combined with a common spring-loaded main switch 12. They are useful. in this case a variable preselector device, which in particular for motor vehicles with several driving axles and the corresponding number of differentials (partly between the drive wheels on each axle and partly between each driving axle) Sr ay. Advantage. The lines 13, 14, 15, 16 are each connected to a magnetic coil for the respective valves in the different brake lines. The battery is denoted by 17, and the electrical wires are connected to the ground at 18 and 19. If, for example, the wheel corresponding to the wire 13 is to be individually chromed, the circuit breakers 8, 10 and 11 are first switched on and then the main circuit breaker 12. against the lines 14, 15 and 16 corresponding to the valves. After the brake pedal has been depressed, said valves are trained in a closed position under the influence of the pressure of the brake fluid, and the main throttle switch 12 can be relaxed, after which it returns to the position shown in the drawing under the influence of the spring 20. When the brake is released, the pedal is released, the three valves are returned by their return springs 2 to the open position.

For ordinara tvaaxliga bilar med drivning pa en axel Sr anordningen enligt fig. 3 lamp-hg, alltsa en av en fjader 21 piiverkad vridstrombrytare 22, sum fran eft icke stromledande normaIlage Sr installbar i tvS avsparrningslagen for bromsventilerna, namligen det ena hakhjulets och framhjulens respektive det ,andra bakhjulets och framhjulens bromsar avsparrade for bromsfluidum. I det ena fallet gar strommen genom kontakterna B och A orb i det andra fallet ganom kontakterna B och C. Den elektriska ledningen 23 tankes liar direkt ansluten till magnetspolen for venfilen B' i den for framhjulen gemensanuna delen 26 av bromsledningen 26, 27, 23 (fig. 5), medan ledningarna 24 och 25 aro direkt anslutna till ventilerna C' resp. A' i bakhjulsbromsledningarna 29 resp. 30. Bromsledningarna utga pa kant satt frau huvudcylindern 31. Strombrytaren 22 Sr lampligen anordnad under retell 32. For ordinary two-axle cars with drive on one axle, the device according to Fig. 3 is lamp-high, i.e. a rotary circuit breaker 22 actuated by a spring 21, which can be installed under the non-current-conducting standard layer in the shut-off act for the brake valves, namely one front wheel and one front wheel. that, the brakes of the other rear wheel and front wheels are blocked for brake fluid. In one case the current passes through the contacts B and A orb in the other case through the contacts B and C. The electrical line 23 is thought to be connected directly to the magnetic coil of the vein file B 'in the front wheel common part 26 of the brake line 26, 27, 23. (Fig. 5), while the lines 24 and 25 are directly connected to the valves C 'and A 'in the rear wheel brake lines 29 resp. 30. The brake lines extend on the edge set from the master cylinder 31. The circuit breaker 22 is suitably arranged under the brake 32.

Fig. 4 visar en liknande strombrytare for en 4-hjulsdriven bil. Fig. 4 shows a similar circuit breaker for a 4-wheel drive car.

VridstrOmbrytaren kan givetvis ersattas med en axiellt forskjutbar manoverarm, tryckknappar eller dylikt. The rotary switch can of course be replaced with an axially displaceable control arm, pushbuttons or the like.

Claims

Patent claim:

A device for preventing or stopping the spinning of wheels driven over differential shafts on motor vehicles, provided with wheel brakes which can be actuated by a pressure fluid, can be characterized in that in the brake line (29, 30) each drive wheel is in the brake lines of the non-driven wheels - for the latter possibly in a brake line common to the wheels (26) - Sr arranged a shut-off valve (C ', A' or B '), the cut-off body (3, 5) Sr in the closing direction is actuated by a switch controlled by means of a switch mounted at the driver's seat solenoid (6) and in the opening direction of an interlocking spring (2) and arranged ail is retained in a rigid layer by the fluid pressure which arises by braking after the shutdown with the ordinary actuating means of the vehicle, independent of the action of the solenoid.

Device according to claim 1, characterized in that circuit breakers (8, 9, 10, 11) for the various shut-off valves are connected to a common main circuit breaker (12) loaded by a spring (20), which is suitably mounted next to the steering wheel of the vehicle. (32), sA that this and the main switch can be held simultaneously with one hand.

Device according to claim 1, characterized in that all the valves included in the device (A ', B', C ') are manoeuvrable by means of one. common switch (22), which from a non-current-carrying nor-manage under the counteracting of a resilient return device (21) is installable for simultaneous contact with two or more of the solenoids (6) in the different valves. Stoelnholm 1948. Hung]. Boktr. A. Norstedt & SUrier 480089