Tuning kit for a Simson clutch and clutch with such a tuning kit

Abstract

The present invention relates to a tuning kit for a Simson clutch comprising a clutch pack with several friction discs and several clutch discs arranged alternately between a drive plate and a spring plate, and pressed together by a restoring force of at least one clutch spring between the drive plate and the spring plate; wherein the clutch pack is designed to be received in an original clutch basket of a Simson engine of type M500 or M700, in order to interact with it; wherein the clutch discs are designed to be applicable to an original clutch hub of a Simson engine of type M500 or M700; wherein a hydraulically actuated pressure mushroom is arranged on a side of the clutch pack opposite the clutch basket, by actuation of which the drive plate and the spring plate move apart.

Description

[0001] The present invention relates to a tuning kit for a Simson clutch for Simson engines of type M500 and M700 and to a clutch with such a tuning kit.

[0002] The M500 engine was introduced in the Simson series from 1980 onwards for the vehicles S51, SR50, S70 and KR51 / 2 Schwalbe and has a displacement of 50 cm³. 3 or 70 cm 3 .

[0003] The M700 engine was developed as a more powerful and robust engine for vehicles with higher demands. Its displacement is typically 70 cc. 3 or larger.

[0004] Both engine types are very popular with motorcycle enthusiasts and still exist in large numbers today.

[0005] The clutch used in the Simson M500 or M700 engines is a multi-disc wet clutch immersed in the engine oil, which is operated via a Bowden cable to interrupt the power transmission between the engine and the gearbox.

[0006] The clutch comprises a clutch pack with several friction discs and several clutch discs arranged alternately on a clutch hub.

[0007] The clutch pack is housed in a clutch basket, which is firmly connected to the crankshaft and transmits power from the engine.

[0008] The clutch discs are mounted on the clutch hub and rotate with it. There are usually three to five discs, depending on the design. The friction discs are arranged alternately with the clutch discs in the clutch assembly. The friction discs follow the rotational movement of the clutch basket into which they are inserted.

[0009] Clutch springs press the discs in the clutch pack together when the clutch is engaged.

[0010] The clutch basket surrounds the entire clutch assembly and rotates with the friction discs.

[0011] The clutch basket is directly connected to the gear attached to the crankshaft via external teeth and is permanently engaged, transmitting the engine rotation.

[0012] The clutch hub is centrally located within the clutch assembly and connected to the clutch discs. The clutch hub is mounted on the transmission input shaft and transmits the rotational movement from the clutch assembly to the transmission.

[0013] When engaged, the clutch springs press a plate against the discs of the clutch pack. This firmly compresses the friction discs and clutch plates together. The engine rotation is transmitted from the clutch basket, via the friction discs, to the clutch plates and the clutch hub. Power transmission occurs through friction.

[0014] The coupling hub is positioned perpendicular to the direction of travel and runs horizontally to the ground. The coupling assembly is inserted into the coupling basket from the left when viewed from the direction of travel.

[0015] When the clutch lever is pulled, the Bowden cable actuates a rocker or lever mechanism inside the engine. This pushes on the clutch pushrod, which moves the friction plate outwards. The clutch pushrod is actuated by the Bowden cable from the right side of the clutch assembly (in the direction of travel). As the Bowden cable is pulled, the clutch pushrod moves to the left (in the direction of travel). The friction plates separate from the clutch plates, and power transmission is interrupted.

[0016] When the clutch lever is released, the clutch springs push the discs back together, and power transmission is restored.

[0017] Common clutch problems include the clutch not disengaging properly due to an incorrectly adjusted Bowden cable, or the Bowden cable being stiff, making precise clutch operation difficult. The Bowden cable can also easily break, and the lever mechanism moved by the Bowden cable can become jammed.

[0018] The object of the present invention is to remedy at least one of the above-mentioned disadvantages of the clutch of an M500 or M700 engine.

[0019] The problem is solved by a tuning kit according to claim 1.

[0020] According to the invention, a tuning kit for a Simson clutch is provided, wherein the tuning kit has a clutch pack with several friction discs and several clutch discs that are arranged alternately between a drive plate and a spring plate and are pressed together by a restoring force of at least one clutch spring between the drive plate and the spring plate.

[0021] The drive plate is connected to the clutch discs by a force-conducting mechanism. For example, a drive plate protrudes from the drive plate, onto which the clutch discs are mounted. The clutch discs are, for example, simply placed onto the drive plate. The drive plate transmits movement between a clutch hub and the clutch discs. The clutch hub, for example, is guided centrally through the drive plate and runs axially through the drive plate.

[0022] The friction discs are not connected to the drive plate; they are driven by a rotating clutch basket.

[0023] For frictional power transmission between the clutch discs connected to the drive plate and the friction discs driven by the clutch basket, these are pressed together by the restoring force of the clutch spring between the drive plate and the spring plate. The spring plate and drive plate thus interact in such a way that, when the clutch is engaged, they move towards each other under spring force, thereby pressing the friction discs and the clutch discs together.

[0024] For example, at least one clutch spring is arranged between a pressure plate connected to the pressure plate and the driven plate or the spring plate. The pressure plate is either rigidly connected to the driven plate or the spring plate. For example, the pressure plate is rigidly connected to the spring plate, and the at least one clutch spring pushes from the pressure plate onto the driven plate, so that the friction discs and the clutch discs are pressed together between the driven plate and the spring plate. Likewise, the driven plate and the spring plate can be reversed, so that the pressure plate is rigidly connected to the driven plate, and the at least one clutch spring pushes from the pressure plate onto the spring plate against the clutch discs and friction discs.

[0025] The clutch assembly is designed to fit inside and operate within the original clutch basket of a Simson M500 or M700 engine. The original clutch basket resembles a cup with slotted recesses in its outer surface, running parallel to the clutch hub. The friction discs have projections around their circumference that engage in the slotted recesses of the clutch basket. When the clutch basket rotates, the friction discs, with their circumferential projections inserted into the slotted recesses of the clutch basket, are driven.

[0026] The clutch pack of the tuning kit according to the invention replaces the original clutch pack of a Simson engine of type M500 or M700.

[0027] The clutch discs are designed to be applicable to an original clutch hub of a Simson engine of type M500 or M700.

[0028] On one side of the clutch assembly opposite the clutch basket, a hydraulically actuated pressure mushroom is arranged, the actuation of which moves the driven plate and the spring plate apart. This means that in a clutch designed with the tuning kit according to the invention, the clutch is not actuated by a Bowden cable that, viewed in the direction of travel, moves a clutch pushrod from right to left, but rather the clutch is actuated from the left (viewed in the direction of travel) by applying hydraulic pressure to the pressure mushroom located to the left of the clutch assembly.

[0029] The terms "left" and "right" should also apply when looking in the direction of travel.

[0030] In one embodiment of the invention, the pressure mushroom is hydraulically actuated through a clutch cover arranged on the left side in the direction of travel. The clutch assembly according to the invention is designed such that a clutch slave cylinder mounted on the clutch cover actuates the clutch assembly not indirectly via clutch pushrods, but directly via the pressure mushroom, thereby disengaging the clutch.

[0031] The clutch master cylinder is attached to the handlebars of the motorcycle and connected to the clutch slave cylinder via a hydraulic line.

[0032] A hydraulically actuated clutch from the left side of the engine has increased wear resistance compared to a failure-prone Bowden cable.

[0033] The direct hydraulic actuation of the clutch pack allows for particularly sensitive clutch engagement. Furthermore, components present in the original clutch pack, such as clutch pushrods and the associated lever, are eliminated. This results in fewer parts, reduced weight, decreased rotating mass, and eliminated wear on the clutch pushrods.

[0034] Furthermore, a hydraulically actuated clutch automatically readjusts itself when the clutch pack wears, resulting in a consistent friction point whether the engine is cold or warm.

[0035] The problem is further solved by a clutch for a Simson engine of type M500 or M700, wherein a tuning kit according to the invention is incorporated into the original clutch basket.

[0036] An embodiment of the invention will be described below with reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. 4 will be explained in more detail. They show: Fig. 1 schematically an exploded view of an embodiment of the tuning kit according to the invention; Fig. 2 schematically a perspective view of the assembled tuning kit made of Fig. 1; Fig. 3 schematically a side view of the left side of the vehicle in the direction of travel Fig. 1 of the tuning kit shown; and Fig. 4 schematically a cross-section through the tuning kit made of Fig. 1 along the in Fig. 3 shown cross-section AA.

[0037] The in the Fig. 1, Fig. 2, Fig. 3 to Fig. 4 The embodiment of the tuning kit 10 shown in the invention comprises a clutch package 1 with several friction discs 2 and several clutch discs 3, which are arranged alternately between a drive plate 4 and a spring plate 5.

[0038] The spring plate 5 is connected to the pressure plate 9 by countersunk screws 11. Each countersunk screw 11 is screwed into a threaded stud 13 projecting from the spring plate 5. The distance between the pressure plate 9 and the spring plate 5 is therefore fixed. The countersunk screws 11 are guided by clutch springs 6, which are arranged between the pressure plate 9 and the drive plate 4. The clutch springs 6 are held in spring cups 12 for precise guidance. Each spring cup 12 forms a guide sleeve for the clutch spring 6 through the clutch assembly 1. The spring cups 12 have a collar that transmits the force exerted by the clutch springs 6 on the base of the spring cup 12 to a surface of the drive plate 4 facing the pressure plate 9.

[0039] A clutch spring 6 is thus repelled from the pressure plate 9 and presses against the base of a spring cup 12 in which the clutch spring 6 is housed. The restoring force of the clutch spring 6 is then transmitted via the collar of the spring cup 12 to the driven plate 4. This pushes the driven plate 4 away from the pressure plate 9 and towards the spring plate 5. In doing so, the friction discs 2 and clutch discs 3 of the clutch assembly 1 are pressed together.

[0040] The clutch discs 3 are mounted on a drive attachment 41, which protrudes centrally from the drive plate 4. When the drive plate 4 rotates, the clutch discs 3 mounted on the drive attachment 41 rotate with it.

[0041] The pressure plate 9 is force-conductingly connected to the pressure lever 8. This means that when the pressure lever 8 is hydraulically actuated, it drives the pressure plate 9. As a result, the pressure plate 9 and the drive plate 4 move towards each other, the clutch springs 6 are compressed, and the spring plate 5 and the drive plate 4 move apart. When the spring plate 5 and the drive plate 4 move apart, the friction discs 2 and the clutch discs 3 are relieved of the pressure that presses them together in the engaged state.

[0042] The clutch pack 1 is designed to be accommodated in an original clutch basket 7 of a Simson engine of type M500 or M700, and to work in place of the original clutch pack.

[0043] Likewise, the clutch discs 3 are designed to be applicable to an original clutch hub of a Simson engine of type M500 or M700.

[0044] The pressure mushroom 8 is located on a side of the clutch pack 1 opposite the clutch basket 7. This allows hydraulic actuation of the clutch from the left side of the engine.

[0045] A clutch equipped with the tuning kit 10 according to the invention can thus be actuated via a clutch slave cylinder arranged on the clutch cover of an M500 or M700 engine, which actuates the pressure mushroom 8 through the clutch cover. The clutch slave cylinder is connected via a hydraulic line to a clutch master cylinder, which is located on the handlebars of the motorcycle and can be operated manually via a clutch lever.

[0046] Instead of a failure-prone Bowden cable and indirect actuation of the clutch from the right side of the engine, the tuning kit according to the invention allows direct and very sensitive hydraulic actuation of the clutch via the left side of the engine. Reference symbol list 1 clutch kit 2 friction discs 3 clutch discs 4 drive plates 41 Drive attachment 5 spring plate 6 clutch springs 7 Clutch basket 8 Pressure mushroom 9 Printing plate 10 Tuning kit 11 countersunk screws 12 pencil cups 13 threaded studs

Claims

Tuning kit (10) for a Simson clutch comprising a clutch pack (1) with several friction discs (2) and several clutch discs (3) arranged alternately between a drive plate (4) and a spring plate (5) and pressed together by a restoring force of at least one clutch spring (6) between the drive plate (4) and the spring plate (5); wherein the clutch pack (1) is designed to be received in an original clutch basket (7) of a Simson engine of type M500 or M700 in order to interact with it; wherein the clutch discs (3) are designed to be applicable on an original clutch hub of a Simson engine of type M500 or M700; wherein a hydraulically actuated pressure mushroom (8) is arranged on a side of the clutch pack (1) opposite the clutch basket (7), by actuation of which the drive plate (4) and the spring plate (5) move apart. Tuning kit according to claim 1, characterized in that a drive attachment (41) protrudes from the drive plate (4), onto which the clutch discs (3) are mounted. Tuning kit according to claim 1 or 2, characterized in that the pressure mushroom (8) is hydraulically actuated through a clutch cover arranged on the left in the direction of travel. Tuning kit according to one of the preceding claims, characterized in that the at least one clutch spring (7) is arranged between a pressure plate (9) connected to the pressure mushroom (8) and the drive plate (4) or the spring plate (5). Clutch for a Simson engine of type M500 or M700, characterized in that a tuning kit (10) according to one of claims 1 to 4 is incorporated into the original clutch basket.

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