ES1201487U - Transversal clutch for vehicles of automatic change of two or more wheels (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Transverse clutch for vehicles of automatic change of two or more wheels of centrifugal nature and dry type comprising, among others and inside the body of the bell one or more friction discs, a pressure plate, a spring spring of diaphragm, a driven shaft, a thrust bearing and support rings characterized in that the body bell (10) comprises on its side surface (12), that of the segments (29), cooling means and, at its base (18), sliding masses (23) as means for transmitting the engine torque in the crankshaft to the rear wheel of the vehicle, said sliding masses (23) disposed transversely with respect to the inner side surface of the body (11) of the bell (10), with an inclination between 20º and 60º with respect to a horizontal plane and, a lid or record such as the spider (22) on the body (11). (Machine-translation by Google Translate, not legally binding)

Description

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TRANSVERSAL CLUTCH FOR TWO OR AUTOMATIC CHANGE VEHICLES

MORE WHEELS

Object of the invention

More specifically, the invention relates to improvements introduced in the hood of a transverse clutch, for a car with two or more wheels of automatic transmission, which allows in case of repair or variation of its technical characteristics, its execution and tuning in an easy and inexpensive way, as well as an increase in heat dissipation and greater performance in the transmission of the torque to the rear wheel of the same.

State of the art

There are two types of clutch known as wet multi-disc clutch, or dry multi-disc clutch, both types functionally speaking, that are responsible for separating or joining the rotation of the motor that equips as a state of the art. the vehicle with two or more wheels, to the transmission of the rear wheel of the same.

Basically, the clutch types for two or more-wheeled automobile vehicles conform in a generic way, types designed to control the transmission of power from the engine of said vehicle to the rear wheel thereof, which can be carried out with the help of a change of gears, or on motorcycles and cars automatically. In the case of automatic motorcycles, the centrifugal clutches are used which, due to their simplicity and in the case of vehicles for urban use, are the most used.

Conventionally speaking a clutch, either wet or dry, includes at least the parts listed below for illustrative purposes, but not limited to the following:

- Bell.

- Flywheel.

- Friction disk.

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- Pressure plate.

- Spring or diaphragm spring.

- Driven axle, understood as such, where the rotation of the engine directed to the rear wheel of the vehicle is transmitted.

- Thrust bearing.

- Support rings.

We consider that when the change of the vehicle is in neutral in the case of vehicles equipped with gearshift, there is currently no gear engaged and, the engine of said vehicle rotates freely, while when selected the gear by the user the Even if the clutch lever is released, the torque is transmitted through the clutch and shifting gears to the rear wheel axle. When the vehicle is an automatic gearbox, the gearshift with its gears is discarded and the centrifugal force is used to manage the engine torque that animates the crankshaft and rotate the rear wheel axle, with the help of sliding masses located in The only base of the bell.

The transmission management in the centrifugal clutches, corresponds in some cases to masses that, when turning, push the clutch linings on a bell that thanks to its connection by means of the corresponding belt, transmits the rotation to the axle of the rear wheel, there are many variants of centrifugal clutches, all of them with their corresponding advantages and disadvantages, however despite the large number of variants they all present when the sliding masses are worn out, or they want to vary in weight thereof, the disadvantage that their replacement requires the disassembly of almost all of its elements, since they are not accessible from the front, in addition to the oil pump in the case of wet clutches.

Purpose of the invention

One of the drawbacks of centrifugal clutches when they have to be repaired or their characteristics changed is that they can access the sliding masses inside the bell body, being forced to remove the bell assembly with the discs and other elements of its interior to reach said sliding masses and change them. Changing the sliding masses is mainly due to two causes, one is the wear of the same, basically the part of the sliding mass in contact with the clutch discs that is to say its upper end and, another one that the user wants to change the

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way of transmitting the vehicle's torque in a more or less progressive way, when starting the vehicle or later once the start-up phase is over, for this purpose it is played with the inclination of said sliding masses with respect to a horizontal plane, as ! as with the corresponding weight of the metal masses that are located inside the cavities.

Provide the clutch bell with additional cooling means and, avoid that when wear of the sliding masses occurs as indicated above, most of the parts of said clutch have to be disassembled, basically the so-called bell that With different geometries it houses the disks.

On the other hand, and in order to avoid all of the above, said bell is provided with a register or cover in its front part, which allows the spent doughs to be removed without having to remove it from the motor housing, all by means of the corresponding nut that is thread in the body of said bell.

Additionally, the structure and configuration of the bell body is modified in order to allow a better transverse thrust of sliding masses located at the base of said body, which are responsible for transmitting the torque to the clutch discs located inside said body

Description of the invention

The recommended invention focuses on what is one of the purposes of the invention, on the modification of the body of the centrifugal clutch bell, taking advantage of the lateral surface of said bell and, the so-called gutters in which friction disc flaps, to provide said lateral surface in the parts not occupied by said gutters, an alignment of small fins to dissipate heat, basically when it comes to wet clutches that require cooling for the oil they use and, in order to prevent the heating of said oil flowing through the inside of the clutch housing and the corresponding bell, thanks to said fins, the cooling of oil contained inside said clutch is improved.

According to another of the purposes of the invention, the front part of the bell will have a circular opening, covered in working position by a cover or circular register with a hole in its central part, said hole incorporating a crenellated inner surface, said

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When the cover is removed, it allows access to the inside of said hood without having to disassemble it from the recommended clutch housing and thus replace the sliding masses with others.

According to another of the purposes of the invention, the inner surface of the bell body is modified in the vicinity of its only base, to provide it with inclined holes forming open ducts in which the corresponding sliding masses that act with the rotation of the motor shaft and the centrifugal force generated by said rotation as a pressure plate, but nevertheless its inclination will vary between 20 and 60 ° degrees with respect to the horizontal axis, this fork of values of the inclination of the sliding masses is the consequence of the different requests entrusted to the clutch, depending on the characteristics of the vehicle and the power and torque thereof, in which it also plays with the magnitude by weight of said masses.

The sliding masses used will be of plastic or similar material and the corresponding weights will be placed inside, whose value corresponds to the effort assigned to the sliding masses, in their mission of contact with the clutch discs proper.

Additionally, the base of the bell body, to allow a good performance of the sliding masses driven by the centrifugal force generated by the rotation of the engine crankshaft, is machined to obtain a set of open ducts with the inclination between 20 and 60 ° , for the accommodation of said sliding masses. The configuration of the cross-section of said ducts will be elliptical or any other circular, always in correspondence with the cross-section of the body of said sliding masses, the inner surface of said ducts being grooved, if desired in collaboration with the grooved surface of the body of these masses.

Other details and characteristics will be shown by the description that follows, in which it is shown by way of illustration, but not limited to a graphic representation of the invention which may be carried out in different measures and materials. appropriate to the intended purposes.

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The following is a list of the different parts of the invention found in the figures and, helps the understanding of the invention; (10) bell, (11) bell body (10), (12) side surface of the body (11), (13) hole, (14) crenellated surface, (15) gutters, (16) fins, (17 ) slit strips, (18) bell base (10), (19) hole alignment, (20) drawing, (21) recess, (22) spider, (23) sliding masses, (24) housings for sliding masses (23), (25) flanges, (26) convex surface, (27) cavities, (28) metal masses, (29) segments.

Figure 1 is a perspective view of the bell (10), whose body (11) has a substantially cylindrical lateral surface (12), comprising channels (15) whose outer surface is affected by an alignment of fins (16 ) and between them some slit strips (17), while the base (18) of the bell (10) has an alignment of holes (19) and an inlay (20) with an inner neck formed by the crenellated surface (14) ).

Figure 2 is a top plan view of the body bell (10) (11) in which protecting the lower part of the sliding masses (23) and abutting them is a circular piece as of cover or register that we will call arana (22), whose central part of (22) is flat and on its perimeter there are provided tabs (25), as can also be seen in figure 3.

Figure 3 is a front elevational view diametrically sectioned in which the housings (24) of the sliding masses (23) can be seen, whose lower part in the resting position contact the flanges (25) of the spider (22) .

Description of a realization of the invention

Since the proposed invention is centered on the hood of a clutch, it has not been deemed convenient to draw all the elements of the clutch, nor the engine of the vehicle in which it is applied, pointing to facilitate the understanding of the invention with the letter " A ”the side of the hood (10) is limited to the engine and,“ B ”is the side of said hood (10) that looks to the right side of the motorcycle in the direction of its running.

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In one of the preferred embodiments of the invention and as can be seen in Figure 1, it focuses on the modification of the hood (10) of a wet transverse centrifugal clutch and, fundamentally on the novel body architecture (11) of (10), which allows thanks to the change of its structure and configuration, the addition to the bell (10) of different improvements both in what affects the general operation of said clutch, as in its repair, for the change of the worn slippery masses or, the replacement of the same with others of different characteristics both at the level of weight and their configuration.

The bell (10) has a substantially cylindrical body (11) lacking one of its bases, whose lateral surface (12) that of the body (11) is divided into segments (29) between which the channels (15) delimit, being the only base of the bell (10), (18), which in one of the possible embodiments is of a substantially conical configuration, partially covered by the internal volume of the body (11), by means of a circular plate that we will call arana (22) substantially parallel to the base (18), whose perimeter of (22) has, as can be seen in figure 3, a set of flanges (25) directed outwards, the set of flanges (25) being a radial alignment , which serve (25) as a lower stop than the sliding masses (23) that slide through the housings (24), the cross-section of said housings (24) can be elliptical and any other circular, in accordance with the configuration of said masses sliders (23), whose outer surface it can be, if necessary, striated to prevent the relative rotation of said masses (23), when they are moved by the action of the centrifugal force and consequently on the inner surface of said housings (24), so will be.

Unlike conventional and known clutches for what is the state of the art, it is incorporated according to one of the purposes of the invention the transversality in the use of sliding masses (23) that are usually perpendicular to the clutch discs, which adopt in the invention an inclination of their housings (24) between 20 and 60 ° with respect to a horizontal axis, thanks to the provision in the base (18) of the body (11) of the bell (10), of a circular arrangement of said housings (24), the metal masses (28) being located in the cavities (27) of said sliding masses (23).

According to another of the features of the invention in the segments (29) located between two gutters (15) as can be seen in Figures 1, and 3, on their outer surface thereof (29), they are provided a set of horizontal fins (16) and, between each two

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they (16) slits of cleft (17), guaranteeing an increase in heat dissipation of the body (11) by its lateral surface and, consequently of the oil contained inside it circulates driven by the corresponding pump not represented in the figures that They accompany you here.

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The sliding masses (23) used in the invention can be of any suitable material, including plastic materials, with a higher head than the sliding masses formed by a convex surface (26). Inside said masses (23) and according to a totally conventional solution that allows the accommodation inside the cavities 10 (27) of the sliding masses (23), other masses (28) that can be preferably

Metals easily replaceable as well as the discs of the clutch itself, not shown in the figures, thanks to said change of configuration and structure of the bell (10), which allows simply removing the spider (22) changing said masses (23) by others when the convex surface (26) is worn out by use, or in the case of 15 competition vehicles replace the metal weights or masses (28) located inside the cavities (27) with others of different weight.

Described sufficiently the present invention in correspondence with the attached figures, it is easy to understand that any modifications of detail that are deemed convenient may be introduced therein, as long as the essence of the invention that is summarized in the following claims is not altered.

Claims (1)

5 10 fifteen twenty 25 30 35 1a - TRANSVERSAL CLUTCH FOR VEHICLES OF AUTOMATIC CHANGE OF TWO OR MORE WHEELS of a centrifugal nature and dry type comprising, among others, and inside the body of the bell one or more friction discs, a pressure plate, a spring spring diaphragm, a driven shaft, a thrust bearing and, support rings characterized in that the body bell (10) (11) comprises on its lateral surface (12), that of the segments (29), cooling means and, at its base (18) sliding masses (23) as transmission means of the engine torque in the crankshaft to the rear wheel of the vehicle, said sliding masses (23) arranged, transversely with respect to the inner lateral surface of the body (11 ) of the bell (10), with an inclination between 20 ° and 60 ° with respect to a horizontal plane and, a cover or register such as the spider (22) in the body (11). 2a - TRANSVERSAL CLUTCH FOR AUTOMATIC CHANGE VEHICLES OF TWO OR MORE WHEELS according to the first claim characterized in that the clutch cooling means located on the lateral surface of the bell (10), comprise the segments (29) delimited between two gutters (15), of some fins (16) perpendicular to said outer lateral surface of the body (11) and between two fins (16) a slit strips (17). 3a - TRANSVERSAL CLUTCH FOR VEHICLES OF AUTOMATIC CHANGE OF TWO OR MORE WHEELS according to the first claim characterized in that the base (18) of the body (11) of the bell (10), is of a substantially conical configuration, partially covered the interior volume of the body (11), by means of a cover or registration the spider (22). 4a - TRANSVERSAL CLUTCH FOR VEHICLES OF AUTOMATIC CHANGE OF TWO OR MORE WHEELS according to the 1st and 3rd claims characterized in that the spider (22) is a circular plate whose perimeter presents, a set of flanges (25) directed outward of radial alignment working said flanges (25) as stop means of the sliding masses (23). 5a - TRANSVERSAL CLUTCH FOR VEHICLES OF AUTOMATIC CHANGE OF TWO OR MORE WHEELS according to the 1st and 4th claim characterized in that said sliding masses (23) have a convex surface (26) in their upper part, provided 9 in the body of the masses (23) inside a cavity (27) occupied by the metal masses (28). 6a - TRANSVERSAL CLUTCH FOR AUTOMATIC CHANGE VEHICLES 5 TWO OR MORE WHEELS according to the 1st claim characterized in that the base (18) of the body (11) of the bell (10), has in its central part a drawing (20) delimiting its inner surface the hole (13), said inner surface being affected by the crenellated surface (14) and in the upper part of the drawing (20) the recess (21). 10 7a - TRANSVERSAL CLUTCH FOR AUTOMATIC CHANGE VEHICLES OF TWO OR MORE WHEELS according to the first claim characterized in that the sliding masses (23) that move through the housings (24), said sliding masses (23) presenting a cross section that can be elliptical and any other circular, in accordance with the configuration of said sliding masses (23) whose outer surface 15 can be striated if necessary, to prevent the rotation of said masses (23).