WO1984002165A1

WO1984002165A1 - Converter mechanism of rotatory movement in linear alternate movement or vice-versa

Info

Publication number: WO1984002165A1
Application number: PCT/BR1983/000012
Authority: WO
Inventors: Manoel Neto Rached
Original assignee: Ancona Alexandre; Broglio Jose Francisco; Manoel Neto Rached
Priority date: 1982-11-25
Filing date: 1983-11-22
Publication date: 1984-06-07
Also published as: EP0127629A1; BR8206896A

Abstract

A converter mechanism of rotary movement in linear alternate movement or vice versa, intended to be applied in many machines, that use presently cranks and crankshafts. This invention consists of a slide piece (1) with rectangular sideface added by semicircles in its extremities, having in its width an inside track perpendicular at the sideface that embraces in straight line from the center of the semicircle of the slide piece until the center of the other semicircle. There is parallel to this track an outside surface, the geometry of this surface being defined according to the surface geometry of the wheel(s), that will slide on it, so that the transmission be possible. The slide piece describes a translation movement around the wheel(s), in which is contacted, assured, as well the adjustment for transmission by a composite guide (2), composed by a trailing guide of the rotatory movement, supported on the shaft of the wheel(s), contacted at the slide piece, having coupled above and parallel, a guid of rectilinear movement, in which inside track of the slide piece slides.

Description

ALTERNATE MOVEMENT OR VICE-VERSA

TECHNICAL FIELD

This invention relates to a converter mechanism of rotatory movement in linear alternate movement or vice versa, intended to be ""i applied in many machines, that uses presently cranks and crankshafts.

5 BACKGROUND ART

The conversion of the linear alternate movement in rotatory movement, .done presently by cranks and crankshafts has efficiency of

50%, not considering the loss due to friction. The conversion of the rotatory movement, done also by cranks and crankshafts, has irregular 10 speed and needs large areas for the cranks rotation and/or the crankshafts rotation, when linear alternate movements of large extent of motion is needed.

The present invention converts the linear alternate movement to rotatory movement with an efficiency much bigger, and converts the 15 rotatory movement in linear alternate movement with constant speed and occupies smaller area.

DISCLOSURE OF INVENTION

The converter mechanism of rotatory movement in linear alternate movement or vice versa is constituted for a slide piece that through a

20 composite guide works touching the wheel (s) that is in contact, describing a linear alternate movement, that makes possible a forces transmission with constant efficiency along of its extent of motion, being the variable efficiency only in the extremities of the slide piece, when it changes its direction.

25 _% BRIEF DESCRIPTION OF DRAWINGS

The figure 1 constitutes the global representation of the present mechanism. The slide piece(l) coupled in the transmission wheel through the composite guide(2), which is coupled also in the wheel shaft.

The figure 2 constitutes a sideface view of the slide piece. The 30 figure 3 constitutes the composite guide composed by a trailing guide ^j' of rotatory movement and one guide of the rectilineal movement.

BEST MODE OF CARRYING OUT THE INVENTION The figure-2 constitutes a sideface view of the slide piece, that has the shape of a rectangle added by semicircles in its extremities 35 with the diameter equal to the height of the rectangle having its center at the extremities of the rectangle in the heigh h/2 of it.

The slide piece is emptied in its width from the center of the semicircle till this center of the other, creating it track for the compos te gu e of the figure 3, be possible to cause the deslocation o the slide piece contacted at the wheel (s) in rotation.

This composite guide according to the figure 3 is constituted by a trailing guide of the rotatory movement(l) mounted around the shaft of the wheel (s) coupled with the present mechanism that direct a guide of the rectilineal movement coupled on it, above and parallelly. his guide of the rectilineal movement will act on the inside track of the slide piece. The composite guide has also the function to guarantee the adjustment of the slide piece at the wheel(s) contacted in it, in order that an efficient transmission be occured. This composite guide describes an intermittent rotatory movement of one turn to each complete movement of translation of the slide piece and in the di ection of this movement. The sideface of the slide piece of the opposite side where is the composite guide is destined to the coupling of pieces or gadgets, that makes possible the drive of the present .mechanism to the movement reception and force transmitted by it, being this side an extremity of the gadget shaft or machine in which the present mechanism is coupled.

INDUSTRIAL APPLICABILITY

Converter mecanism of rotatory movement in linear alternate movement or vice versa. In accordance with the invention has a wide industrial application, it is intended to be used in vehicles set in motion by linear alternate movement of the pedals, also to .the most part of machines endowed by cranks and crankshafts and also is proposed to motors.

OMPI

Claims

* 1. Converter mechanism of rotatory movement in linear alternate movement or vice versa, characterized by a slide piece with the side¬ face of a rectangle added by semicircles in its extremities, with the diameter equal to the height of the rectangle, having its centers at the extremities of the rectangle in the height h/2 of it.

2. Converter mechanism of rotatory movement, in linear alternate movement or vice versa. As claimed in Claim 1, characterized by a slide piece, that has in its width an outside surface perpendicular to the sideface, which will do the forces and the movement transmission with the wheel (s) contacted with it, being the geometry of the slide piece surface according to the surface geometry of the wheels, above mentioned be possible.

3. Converter mechanism of rotatory movement in linear alternate movement or vice versa. As claimed in Claims 1 and 2, characterized by a slide piece with an inside track, parallel at its outside surface with access by the sideface of the slide piece, being the sideface of this inside track like the sideface of the slide piece, having the semicircles smaller diameters, and with coincident origins as the semicircles of the slide piece; this inside track embraces all the rectangular sideface of the slide piece.

4. Converter mechanism of rotatory movement in linear alternate movement or vice versa. As claimed i Claims 1, 2 and 3 characterized by a composite guide, composed by a trailing guide of the rotatory movement, having coupled in it parallelly above, a guide of the rectilineal movement for sliding of the slide piece,being the height of the trailing guide center of rotatory movement equal the sum of the wall height between the inside track and the-.-outside track of the slide piece plus the wheel (s) radius that contact with it.

5. As claimed in Claims 1, 2, 3>^'.and 4, characterized by two, being one slide guide of the rotatory movement through a coupling that supports and directs a guide of rectilineal movement, being this composite guide has to be doted by bushes and/or bearings.