DE1505924C

DE1505924C - Rim brakes for bicycles, motorcycles, etc.

Info

Publication number: DE1505924C
Authority: DE
Inventors: Der Anmelder Ist
Original assignee: Zapf, Adolf, 8990 Lindau
Publication date: 1972-08-31

Description

3 43 4

F i g. 1,2 und 3 zeigen in einer besonders einfachen Sinne eines verstärkenden Anziehens der Bremsen, und übersichtlichen Ausführungsform die Haupt- Es ist ohne weiteres möglich, diese blockierende Wirmerkmale der Erfindung. Die erfindungsgemäße kung der Bremse aufzuheben, nämlich dadurch, daß Bremse umfaßt zwei Bremssysteme 1' und 1", jeweils die Bremse auf der anderen Seite der Gabel eingebaut bestehend aus einer Bremsbacke 2, die in einem 5 wird.F i g. 1, 2 and 3 show, in a particularly simple sense, an intensifying application of the brakes, and clear embodiment the main It is easily possible to block these effective features the invention. The inventive kung of the brake cancel, namely that Brake comprises two brake systems 1 'and 1 ", each with the brake installed on the other side of the fork consisting of a brake shoe 2, which becomes a 5.

Bremsschuh 3 gehalten ist, wobei die Bremsbacke 2 Eine Weiterbildung der gemäß F i g. 1 bis 3 ge- bzw. der Bremsbelag im wesentlichen senkrecht an zeigten Ausführungsform der erfindungsgemäßen dem Profil der Felge 4 angreift. Dieses senkrechte Bremse ist in F i g. 4 gezeigt. In diesem Ausführungs-Angreifen der Bremsbacken 2 an der Felge 4 ver- beispiel sind die Bremssysteme jeweils individuell auf hindert ein ungleichmäßiges Abnutzen des Brems- io jede mögliche Felgenform derart abstimmbar, daß die belags bzw. der Bremsbacke 2, erhöht die Angriffs- Hauptwirkungskomponente der Bremsung stets im fläche sowie die übertragbare Bremsleistung. Jeder wesentlichen senkrecht zum Profil der Felge 4 steht. Bremsschuh 2 wird mittels eines Bremshebels 5 ge- Dies ist dadurch möglich, daß das Schwenklager 6 halten und geführt; beim Angreifen der Brems- mit dem Bremshebel 5 und dem Betätigungshebel 11 backen 2 an den Felgen 4 ist die Stellung des Brems- 15 um eine Achse 15, die senkrecht zur Lagerachse 7 hebeis 5 im wesentlichen tangential zur Felge 4. Durch steht und die in F i g. 4 nur als Punkt sichtbar ist, eine derartige Anordnung verursachen die im wesent- kontinuierlich oder schrittweise verschwenkbar und in liehen in Fahrtrichtung wirkenden Bremskräfte haupt- der gewünschten Schwenklage feststellbar ist. In sächlich Zug-bzw..Biegebeanspruchungen im Brems- Fig. 4 ist das Schwenklager 6 auf einer Platte 16 hebel 5. Dadurch ist es möglich, mit relativ einfach so starr befestigt, welche über einen Lagerzapfen mit ausgebildeten billigen Bremshebeln eine vollwertige einer Trägerscheibe 17 verbunden ist. Die Platte 16 und sichere Kraftübertragung zu erzielen. Der Brems- weist an einander diametral gegenüberliegenden Stelhebel 5 ist an seinem anderen Ende mit einem len zwei Teilkreisschlitze 18 auf; durch jeden Teil-Schwenklager 6 verbunden. Es ist ein wesentliches kreisschlitz 18 ist eine Schraube 19 in ein Gewinde-Merkmal der Erfindung, daß die Lagerachse 7, hier as loch 20, das hinter jedem Teilkreisschlitz 18 in der strichpunktiert gezeichnet, schräg zur Radebene 8 Trägerscheibe 17 angeordnet ist, einschraubbar. Die und schräg zur Radachse steht. Diese Maßnahme Platte 16 erhält also eine zweifache Führung, nämmacht es möglich, alle Organe des Bremssystems beim Hch einmal durch den Lagerzapfen zwischen der Lösen der Bremse über den Felgenrand 14 bzw. den Platte 16 und der Trägerscheibe 17 und zum anderen Reifenrand hinaus schräg nach außen, etwa in Rieh- 30 durch die beiden einander diametral gegenüberliegentung des Pfeils 9, zu verschwenken. Das Schwenk- den Schraubverbindungen 19, 20 durch die Teilkreislager 6 ist in dieser Ausführung starr an eine Halte- schlitze 18. Werden die beiden Schraubverbindungen rung, die das Bremssystem 1' bzw. 1" mit einer gelöst, so ist die Platte 16 mit dem Brems- und Be-Gabeiseite des Rades verbindet, angeschlossen. Ge- tätigungshebel um die. Achse 15 entsprechend der maß dieser Ausführungsform sind die Teile des er- 35 Länge des Schlitzes 18 verschwenkbar. Es bedarf also findungsgemäßen Bremssystems so dimensioniert jeweils nur des Anziehens der Schraubverbindungen, bzw. geformt, daß die Bremse für eine bestimmte um die Platte 16 und die an ihr angeschlossenen Teile Felgenform besonders geeignet ist. Die Halterung in einer bestimmten Stellung auf der Trägerscheibe 17 10 ist in bekannter Weise an einen Arm der Gabel zu fixieren. Es gibt mehrere weitere Möglichkeiten, mittels einer Schraubzwinge od. dgl. angeschlossen. 40 eine derartige Verschwenkbarkeit des Schwenk-Brake shoe 3 is held, with the brake shoe 2. 1 to 3 or the brake lining essentially perpendicular to showed embodiment of the invention the profile of the rim 4 engages. This vertical brake is shown in FIG. 4 shown. In this execution attack the brake shoes 2 on the rim 4, for example, the brake systems are each open individually prevents uneven wear of the brake io every possible rim shape can be tuned in such a way that the lining or the brake shoe 2, the main effective component of the attack always increases in the braking area as well as the transferable braking power. Each is essentially perpendicular to the profile of the rim 4. Brake shoe 2 is activated by means of a brake lever 5. This is possible because the pivot bearing 6 hold and run; when attacking the brake with the brake lever 5 and the actuating lever 11 jaws 2 on the rims 4 is the position of the brake 15 about an axis 15 which is perpendicular to the bearing axis 7 hebeis 5 is essentially tangential to the rim 4. Through stands and the in F i g. 4 is only visible as a point, such an arrangement cause the essentially continuously or step-wise pivotable and in borrowed braking forces acting in the direction of travel mainly the desired pivot position can be determined. In The swivel bearing 6 on a plate 16 is mainly tensile or bending stresses in the braking lever 5. This makes it possible with relatively simple so rigidly attached, which has a bearing pin with trained cheap brake levers a full-fledged carrier disk 17 is connected. The plate 16 and to achieve safe power transmission. The brake has actuating levers that are diametrically opposite one another 5 is at its other end with a len two pitch circle slots 18; through each part swivel bearing 6 connected. There is an essential circular slot 18 is a screw 19 in a thread feature the invention that the bearing axis 7, here as hole 20, behind each pitch circle slot 18 in the Drawn in dash-dotted lines, 8 carrier disk 17 is arranged obliquely to the wheel plane, can be screwed in. the and is inclined to the wheel axis. This measure plate 16 thus receives a double guide, naming it possible to all organs of the braking system at the Hch once through the bearing pin between the Release the brake over the rim edge 14 or the plate 16 and the carrier disk 17 and on the other Tire edge obliquely outwards, roughly in line with the two diametrically opposite each other of arrow 9 to pivot. The pivoting of the screw connections 19, 20 through the pitch circle bearings In this embodiment, 6 is rigidly attached to a retaining slot 18. The two screw connections tion that solved the braking system 1 'or 1 "with one, so is the plate 16 with the braking and loading side of the bike connects, connected. Operating lever around the. Axis 15 according to the According to this embodiment, the parts of the length of the slot 18 are pivotable. So it takes brake system according to the invention so dimensioned in each case only the tightening of the screw connections, or shaped that the brake for a certain around the plate 16 and the parts connected to it Rim shape is particularly suitable. The holder in a certain position on the carrier disk 17 10 is to be fixed in a known manner on an arm of the fork. There are several other ways by means of a screw clamp or the like. Connected. 40 such a pivotability of the pivot

Zur Betätigung, d. h., zum Verschwenken des lagers 6 gegenüber seiner Halterung zur AnpassungTo operate, d. h., To pivot the bearing 6 with respect to its holder for adjustment

Bremshebels 5 ist ein Betätigungshebel 11 über die der Bremssysteme an die Felgenform vorzunehmen.Brake lever 5, an actuating lever 11 is used to adjust the brake system to the rim shape.

Schwenklagerwelle starr mit dem Bremshebel 5 ver- Eine diskontinuierliche Art des Verschwenken istThe pivot bearing shaft is rigidly connected to the brake lever 5. A discontinuous type of pivoting is

bunden. Dieser Betätigungshebel 11 ist in bekannter beispielsweise mittels zweier miteinander kämmenderbound. This operating lever 11 is known for example by means of two intermeshing

Weise, beispielsweise mittels eines Bowdenzuges 12, 45 Zahnkränze möglich, wobei ein Innenzahnkranz, bei-Way, for example by means of a Bowden cable 12, 45 ring gears possible, with an inner ring gear, both

gegenüber dem starr an der Radgabel befestigten spielsweise einer Platte, in einen Außenzahnkranz,compared to the rigidly attached to the wheel fork, for example a plate, in an external ring gear,

Schwenklager 6 verschwenkbar. beispielsweise einer Scheibe, greift und mittels einerSwivel bearing 6 pivotable. for example a disc, engages and means of a

In der Ansicht gemäß Fig. 2 ist die im wesent- Schraubverbindung in der jeweiligen Lage feststell-In the view according to FIG. 2, the screw connection is essentially locking in the respective position.

lichen tangentiale Stellung des Bremshebels 5 gegen- bar ist.Lichen tangential position of the brake lever 5 is opposite.

über der Felge 4 besonders gut sichtbar. Die Stel- 50 Diese gegenüber der Ausführungsform gemäßparticularly clearly visible above the rim 4. The position 50 This compared to the embodiment according to

lung der Felge selbst ist hier gestrichelt und nur F i g. 1 bis 3 nur wenig aufwendigere Ausbildung derDevelopment of the rim itself is dashed here and only F i g. 1 to 3 only slightly more complex training of the

durch den Felgenrand 14 markiert. erfindungsgemäßen Einrichtung gestattet es, diemarked by the rim edge 14. The device according to the invention allows the

Eine Seitenansicht auf ein Bremssystem 1' bzw. Bremse jedem Profil der Felge anzupassen. Die An-1" ist in F i g. 3 gezeigt. Der Pfeil 13 zeigt die Fahrt- passung eines Bremssystems an die Felgenform errichtung an. Bei der hier dargestellten Anordnung 55 folgt so, daß zunächst die Höhenlage der Halterung der erfindungsgemäßen Bremse handelt es sich um 10 auf dem jeweiligen Arm 29 der Gabel 30 enteine Bremse mit Selbstverstärkung, d. h., während des sprechend der Stellung der Felge 4 und danach die Bremsvorgangs wirkt die durch die Drehung der gewünschte Verschwenklage der Lagerachse 7 einFelge auf die Bremsbacken 2 übertragene Kraft im gestellt wird.A side view of a brake system 1 'or brake to match each profile of the rim. The An-1 " is in Fig. 3 shown. The arrow 13 shows the driving fit of a braking system to the rim shape on. In the arrangement 55 shown here, it follows that first the height of the holder the brake according to the invention is 10 on the respective arm 29 of the fork 30 enteine Self-energizing brake, d. i.e., during the speaking of the position of the rim 4 and then the The braking process is effected by the rotation of the desired pivot position of the bearing axis 7 on a rim The force transmitted to the brake shoes 2 is provided.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 these known rim brakes adhere to the same claims: chen disadvantages, such as the aforementioned be known rim brake: In so-called flat bed

1. Rim brakes for bicycles, motorbikes fig, the brake shoes are also in the geu. Like. With two on the fork arms of the wheel fork 5 solved state so close to the spoke area of the separately attachable brake wheel that its removal without dismantling the. systems, each of which is not possible to swivel on the brake. Also stand by Fork arm mounted in a pivot bearing, one of this embodiment the brake lever in the essential brake shoe have supporting brake lever, which borrowed perpendicular to the rim plane, so that here too with the brake shoe resting on the rim, a relatively large one on the brake lever when braking essential tangential position to the rim bending and torsional loads and the other

. has scope and the rigid with a Betä'ti previously mentioned, from a vertical position of the

transmission lever is connected, thereby marked- brake lever to the rim resulting disadvantages

shows that the bearing axis (7) of the swivel pedal.

Iagers (6) is inclined to the wheel plane, so that after 15 Also in another known rim brake

when the brake is released, the distance between the two. for flat bed rims, in which the brake levers at

opposite brake shoes (2) is larger, braking action is essentially tangential to the rim

than the width of the rim (4). stand, it is disadvantageous that the brake shoes

2. Rim brake according to claim 1, characterized ge or the brake shoes not from the track area of the indicates that the pivot bearing (6) can pivot outwards with the ao wheel. Here brake lever (5) and the operating lever (11) is also in this known embodiment of the around an axis (15) which is perpendicular to the bearing axis. Removal of a wheel only after previous dismantling (7) of the swivel bearing (6) is, continuously the brake is possible.

(infinitely variable) or swiveling in steps and in The object of the invention is to provide a

the desired pivot position can be determined. 35 rim brake of the type mentioned above to create

fen, which the disadvantages of the known rim

braking avoids. The rim brake to be created

should be an easy, quick dismantling of the wheel

The invention relates to a rim brake for driving wheels without dismantling one or both brake systems, Motorcycles and the like with two on the fork arms 30 borrowed. Through appropriate training of the the wheel fork separately attachable brake shoes and brake pads is supposed to do this Brake systems, each of which can be swiveled at the can also be released when the rim, for example fork arm stored in a pivot bearing, one wise as a result of a fall, mechanically deformed Have brake shoe carrying brake lever, which is at. In addition, the rim brake to be created should the brake shoe lying on the rim can be used essentially universally for all types of rims, borrowed tangential position to the rim circumference This object is achieved according to the invention

and which is rigidly released with an actuating lever that the bearing axis of the swivel bearing is inclined is bound. to the wheel plane, so that after releasing the

A known rim brake of the brake described above, the distance between the two opposite Art has the disadvantage that an expansion of the wheel 40 brake shoes is greater than the width of the rim, not without dismantling the well-known rim brake The brake shoes can with such a solution

is possible. A repair of the wheel is therefore inclined on a circular path around the pivot axis due to the presence of the rim brake, it can be moved outwards so that it can be dismantled sword. of the wheel without dismantling the brakes at the same time

Another known rim brake has a 45 is possible.

angular brake and operating lever, wel- The adjustability and adaptability of the

rather in the area of its apex on a horizontal rim brake on each rim profile to the rim plane parallel shaft aims that according to the invention the pivot bearing with the is, the one leg of the brake and operating brake lever and the operating lever around one control lever is connected to a Bowden cable and 50 axis, which is perpendicular to the bearing axis of the Schwenkder other leg carries the brake shoe. Iagers stands, continuously (stepless) or step-

Since in this known embodiment the braking mode can be pivoted and in the desired pivot lever is always perpendicular to the rim or can be determined in this position. The braking force takes effect at one attacks, always step on the brake lever when braking, in such a design, always perpendicular to the rim profile relatively large bending and torsional loads; in this way it becomes an uneven cut off on. All irregularities in the use of the brake pads are avoided. Rim shape, but also an uneven camber, the invention is based on the

are transmitted directly to the brake lever, which is explained in more detail in the drawing. It shows with considerable shock and impact loads from Fig. 1 is a view of a particularly simple one

is set, causing dangerous vibrations of the 60 embodiment of the rim braking system according to the invention can lead. brake,

In another known rim brake, FIG. 2 shows a different view of the embodiment

which the brake shoes on a circular path vertically according to F i g. 1,

pivoted to the rim plane, so that depending on the Ein F i g. 3 is a side view of the embodiment

position and location of the pivot bearing with respect to 65 according to FIGS. 1 and 2 and

Rim and depending on the setting of the F i g. 4 another embodiment of the invention

The swiveling brake shoe is also a favorable manure, in which the swivel axis of the brake lever acts as a braking force can be done on the rim. The pivot bearing is adjustable or adjustable.