BR-202024018023-U2 - A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes.

BR202024018023U2BR 202024018023 U2BR202024018023 U2BR 202024018023U2BR-202024018023-U2

Abstract

This is a lever (15) attached to the pivot (17), the lever arm (18) is bolted to the pivot (17) and rotates together with it, which transmits movement to the rod (19) that is attached to the two supports (20) that have a gear (14) responsible for transmitting the movement between the shaft (4) and (5), thus, when the reversing system is not in use the gear (14) is suspended not having contact with the gear (8) and the gear (9), when the reversing system is activated, the gear (14) is inserted between the gears (8) and (9) causing the movement of the shaft (4) to be transmitted to the shaft (9) in a direction opposite to the original direction of the motorcycle when it is moving forward.

Inventors

MÁRIO SÉRGIO PINTO TEIXEIRA
FLÁVIO SILVA NICOLETTI

Assignees

MÁRIO SÉRGIO PINTO TEIXEIRA

Dates

Publication Date: 20260317
Application Date: 20240901

Claims (10)

1. CONSTRUCTIONAL ARRANGEMENT APPLIED TO A DIRECTIONAL LEVER FOR HANDLING THE INTERMEDIATE GEAR OF A REVERSING SYSTEM FOR MOTORCYCLE GEARBOXES, characterized by consisting of a lever for moving the intermediate gear of the reversing system, which is installed between the inner cover and the outer cover of the motorcycle gearbox;
2. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes, according to claim 1, is characterized by consisting of a lever for moving the intermediate gear responsible for transmitting movement between the shafts of the motorcycle gearbox;
3. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes, according to claims 1 and 2, is characterized by consisting of a lever that, when the reverse system is not in use, suspends the intermediate gear, preventing contact with the gears of the reverse system;
4. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes, according to claims 1, 2 and 3, is characterized by consisting of a lever that, when the reverse system is activated, inserts the intermediate gear between the gears of the reverse system, causing the movement of the gearbox shaft to be transmitted to the device shaft in a direction opposite to the original direction of the motorcycle when it is moving forward;
5. CONSTRUCTIONAL ARRANGEMENT APPLIED TO A DIRECTIONAL LEVER FOR HANDLING THE INTERMEDIATE GEAR OF A REVERSING SYSTEM FOR MOTORCYCLE GEARBOXES, characterized by consisting of a lever to actuate the reversing system that is inserted into the handlebar grip, to which the lever is attached to the pivot, and the lever arm is bolted to the pivot which rotates together with it;
6. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes, according to claim 5, is characterized by consisting of a lever whose arm movement is transmitted to a rod that is attached to the two articulated supports on the pivot, which are joined by three pins, allowing the intermediate gear to rotate freely on the pin, while the pivot is fitted into the spacer and can rotate freely in its seat, and the other pivot is also fitted into the spacer and cannot rotate in its seat;
7. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse system for motorcycle gearboxes, according to claims 5 and 6, is characterized by consisting of two pivots that are held in the spacer housings, which are screwed onto the upper cover of the device;
8. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse gear system for motorcycles, according to claim 1, is characterized by consisting of a lever for moving the intermediate gear of the reverser, which has an elastic pin and an oblong with a screw that keeps the lever attached to the pivot. The oblong allows the lever to move in relation to the pivot a few millimeters, pressed by a spring that rests against the support and pushes the lever upwards. The screw passes through the support, keeping it fixed inside the lever, where an elastic pin passes through the upper cover of the device in the groove, functioning as a lock to prevent accidental activation of the reverse gear system.
9. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverse gear system for motorcycles, according to claims 1, 2, 3, 4 and 8, is characterized by consisting of a lever for moving the intermediate gear of the reverser, which is activated by pushing it down and to the right;
10. A constructive arrangement applied to a directional lever for handling the intermediate gear of a reverser system for motorcycle gearboxes, according to claim 8, is characterized by consisting of a lever for moving the intermediate gear of the reverser, whose rod has an oblong that fits the lever arm. The function of the oblong is to allow, when the system is activated, the lever to go to the end of its travel without the intermediate gear descending completely, which descends by the force of gravity, where the lever arm can only pull the intermediate gear upwards and cannot push it downwards.

Description

FIELD OF APPLICATION [001] This utility model patent application proposes a solution to the actuation problem in the use of a reversing system for motorcycle gearboxes, more specifically a directional lever for intermediate gear. PREAMBLE [002] Harley Davidson motorcycle gearboxes have two main shafts housing the gears responsible for the various speed ratios. When the motorcycle moves forward, these shafts rotate in opposite directions. The device installed at the ends of the shafts, where the nuts that hold the shafts to the support bearings are originally located, removes the nuts and screws the gears of the device in their place. The gears replace the nuts in their original function. The device allows the shafts to rotate in the same direction, thus enabling the motorcycle to move backward. STATE OF THE ART [003] Currently, several patentable and non-patentable reverse gear system models for Harley Davidson motorcycles are known, these devices being installed externally to the side gearbox, more specifically at the ends of the input shaft and the output shaft of the gearbox, which allows the motorcycle to go in reverse, facilitating its maneuvering in situations where it is necessary to move the motorcycle in the opposite direction, propelled by the original internal combustion engine through the original gearbox. [004] Document No. EUA20070022833A1 of 12/07/2007 describing a gear reversal system for a motorcycle, which includes a shifter for rotatably supporting the intermediate gear, locating the intermediate gear in a separation position to disengage the intermediate gear from the main shaft side gear when the shifter is adjusted to a retracted position, and to locate the intermediate gear in an engagement position to engage the intermediate gear with the main shaft side gear when the shifter is adjusted to a forward position; and a retention unit for provisionally holding the shifter selectively in a state with the shifter being adjusted to the retracted position and in a state with the shifter being adjusted to the forward position. The intermediate gear is matched to the shifter such that the intermediate gear has a shaft member formed therein to be rotatably inserted into bearing openings formed in the shifter. Bearing openings are shaped to have a length along a shift direction, the length being greater than the diameter of the shaft member. Document no. JP4677302B2 of 27/07/2005 reveals a main shaft side gear connected to a main shaft in a motorcycle gearbox; a countershaft side gear connected to a countershaft in the motorcycle gearbox; an intermediate gear that always meshes with the countershaft side gear; a gearbox that rotatably supports the intermediate gear and is operated to be shiftable between a reverse and a forward position; retaining means to temporarily maintain the gearbox in the retracted and forward positions; the intermediate gear is combined with the gearbox by rotatably inserting a shaft body provided in the intermediate gear into a bearing hole provided in the gearbox. The gearbox positions the intermediate gear in a separate position where the intermediate gear does not engage with the side gear of the main shaft in the retracted position, and positions the intermediate gear in a connecting position where the intermediate gear engages with the side gear of the main shaft in the forward position. The bearing bore is long in one direction along the direction of the shifter's movement, and has a long and short bore shape in a direction orthogonal to the direction of movement. The width of the bore in the short direction is the width of the shaft body. Substantially equal to the diameter, the width of the bore in the long dimension is greater than the width of the bore in the short dimension. When a force pushing the intermediate gear towards the separation position is applied, the intermediate gear is moved within the reach of the bearing bore so that the shifter in the forward position does not move towards the reverse position. A rear gear device for motorcycles. [005] Other non-patentable reverse gear systems for Harley Davidson motorcycles follow the same logic of installation and actuation of the intermediate gear “by means of a lever”, changing only the material and its visual presentation according to personality. STATE OF THE ART PROBLEMS [006] The reversing systems for Harley Davidson motorcycle gearboxes, both patentable and non-patentable, although efficient for their intended purpose, have drawbacks, such as the need to remove the gearbox from the motorcycle due to the position of the intermediate gear directional lever. [007] Another problem is the drive system of the intermediate gear directional lever due to the position of the internal spring, which, when the lever is pulled down, simultaneously moves the intermediate gear in a way that does not allow the correct engagement of the teeth between the intermediate gears and the reverse gear gears. OBJECTIVE OF IN