WO2002041066A1

WO2002041066A1 - A mechanism for transmission of coordinated movement

Info

Publication number: WO2002041066A1
Application number: PCT/BG2001/000002
Authority: WO
Inventors: Vladimir Lasarov Vassilev
Original assignee: Vladimir Lasarov Vassilev
Priority date: 2000-11-14
Filing date: 2001-02-20
Publication date: 2002-05-23
Also published as: AU2001233519A1

Abstract

The Mechanism of Coordinated Movement (MCM) is designed for coordinating the movement of the optical axes in the magnifying glasses used in a variety of areas including the surgery and the electronics. The MCM-device consists of an upper and a lower lid with channels carved in where the axis of the gear wheal moves. This wheel is constantly clutched by two symmetrically placed cogged strip-details and each of them has two guiding channels. In one of the channels goes a separate immovable axis fixed to the both lids whereas in the other one goes the movable axis of the gear wheel. This mechanism is particularly suitable for magnifying glasses with variable degree of magnification where each particular magnification requires a different angle between the optical axes.

Description

A MECHANISM FOR TRANSMISSION OF COORDINATED MOVEMENT

TECHNICAL FIELD

The effective model refers to a Mechanism of Coordinated Movement (MCM), which is applicable to the nrøgnifying glasses used in the surgery electronics and in all areas requiring observation of small objects from a close distance.

THEPRIORSTATE OF THEART

One of the most frequently used constructions is a rim in which two channels are carved .On these channels the rotation axes of the optical system tube move. This enables the device to perform the basic movements that ensure the proper function of the optical system:

- an ability of changing the distance between the eyes

- a change of the angle between the tubes (optical axes).

This change is required because the focuses of the optical systems are with fixed length and they have to coincide in a point on an axis. The point is situated in the plane of the optical axes and is symmetrically placed between them. [1]

Another commonly used construction consists of a hinge joint with two cylindrical structures to which the tubes of the optical systems are fastened. The change of the distance between the eyes is performed through bending up the hinge joint (just like the binoculars). The change of the angle between the optical axes is carried out trough shding the tubes on the cylindrical structures. [2]

TECHNICAL ESSENSE

The structure of the MCM includes an upper and a lower lid with channels in which the axis of a gear wheel moves. The gear wheel is constantly clutched by two symmetrically placed cogged strip-details. Each of these details has two guiding channels. In one of the channels goes a separate immovable axis whereas the movable axis of the gear wheel enters the other one. The advantages of this device are:

-it guarantees that the angle between the left optical system, right one and the axis on which the object is placed will be always the same

-it enables a simultaneous adjustment of the distance between the eyes and the angle between the optical axes virtually with only one motion

-it is possible to be handled with one hand. A practical example of its function (after the pattern of the example an operative model has been produced) is showed on fig. 1 and fig. 2. Figure 1 displays a sectional view of the device. Figure 2 presents a front elevation with removed upper lid and partially cut off cogged strip- detail.

In the upper lid 1 and in the lower lid 2 the cogged strip-details 6 are placed and the tubes of the optical system 3 are attached to them. In cogged strip-details 6 the guiding channels 7 and 8 are carved in. The guiding channels 7 serve for changing the rotation center and they make possible the forward motion of the cogged strip-details 6 against the immovable axes 9 (which are fixed to the upper and lower lid 1 and 2). On the guiding channels 8 the axis 10 of the gear wheel 4 slides. This axis also slides on the channels 11 on the lids 1 and 2. The dear wheel 4 is continuously clutched by the cogged strips 6. On the axis 5 the object under observation is situated.

A METHOD OF WORKING

Moving along the channels 11, the axis of the gear wheel 10 guarantees an identical rotation angle of the cogged strip-details 6 round the axes 9 by using the channels 8 (on which the axis of the gear wheel also moves). Such a method of work ensures the coinciding of the focuses of the optical systems in a point on the axis 5 (at the time of the rotation, the gear wheel rolls on the cogged strips). Simultaneously with the rotation the cogged strips 6 can also perform (if it is necessary) a forward motion against the axis 9. The gear wheel secures the identical travel of the cogged strip-details. In such a way, the adjustment of distance between the eyes and the coinciding of the focuses can be accomplished with one hand-motion that can be performed with one hand.

References:

[1] Catalogue of company "OCULUS" [2] Catalogue of company "ZEISS"

Claims

A PATENT CLAIM

1. A mechanism of cooperated movement, which characteristic features include the following components: an upper (1) and a lower (2) lid with channels (11) on which the axis (10) of the gear wheel (4) moves; the gear wheel is continuously clutched by two symmetrically placed cogged strip-details (6) each of them with two guiding channels (7) and (8); in one of the channels goes a separate immovable axis (9) fixed to the both Uds and in the other one goes the movable axis of the gear wheel (10).