JPH05126221A - Mechanism for changing speed ratio of two shafts or rotation direction in pressing a transmission roller to driving shaft and driven shaft and moving same - Google Patents

Abstract

PURPOSE:To continuously increase/decrease a speed ratio between a driving shaft and a driven shaft or to change rotation direction of the driven shaft to normal or to reverse. CONSTITUTION:When a disc 2 is rotated to the right, a roller 7 is rotated to the right and a disc 5 is also rotated to the right. Then, when 7 is moved to the position shown by a chain line, the disc 2 is rotated to the right, while the roller 7 is rotated to the left and the disc shaft 5 is also rotated to the left. In this process, a rotation speed ratio of the shafts is increased/decreased continuously.

Description

Detailed Description of the Invention

[0001]

[Industrial application] The field of power transmission.

[0002]

2. Description of the Related Art Power transmission by means of rollers and a disk has a large speed ratio, and there is little reversal of rotation.

[0003]

It is assumed that the rotation speed and the direction of the shaft are reversed with one handle.

[0004]

[Means for Solving the Problems] Discs with different diameter ratios are attached to the ends of the driving shaft and the passive shaft, and the shafts are oppositely attached to the bearing base, and elastic rollers are inserted between them so that they can be pressed appropriately. The operating position is changed to continuously change the rotation or change the rotation direction. The details will be described below based on the drawings.

FIG. 1 shows the entire form of the transmission mechanism of the present invention. The shaft 1 and the shaft 4 may be used as a drive shaft or a passive shaft for the purpose of use, but in this description, 1 is described as a drive shaft and 2 as a passive shaft. Axis 1
Is fixed to the disc 2 and is supported by the bearing base 3 so as to be rotatable, but does not move in the axial direction or the like, and the shafts 4, 5 and 6 conform to the above. Then, when the elastic roller 7 is inserted between 2 and 5 as shown and 1 is rotated clockwise, the roller 7 is rotated clockwise and 5 is also rotated clockwise. Next, 7 is moved by the chain line holding handle 9 by the screw rod 8 supported by the screwed support base 10, and the disk 1
Although it is on the right, the roller 7 is on the left and the disk 5 is on the left. To simplify, 1, 5 and 5 from the position of the roller 7 between the disks
The direction of rotation of is either normal or reverse. The speed ratio also increases and decreases infinitely. Incidentally, 11, 12, 13 and the like are mounting screws.

FIG. 2 is a plan view of FIG. 1 and shows a small disc 2, a bearing base 3, a large disc 5, bearings 6 of these, a roller 7, an operating shaft 8, a handle 9, a bearing 10. , Mount 14, etc. are shown.

[0007]

According to the present invention, a roller is inserted between the driving shaft and the passive shaft, frictional transmission is effected, and the change of the speed ratio and the direction of rotation of the passive shaft are changed to positive or reverse at the action portion of the roller.

[0008]

The mechanism of the present invention has the effect of continuously changing the rotation of the passive shaft of the driving shaft and setting the shaft rotation direction to the right or left.

[Brief description of drawings]

FIG. 1 is a front view of a mechanism for gear shifting and reverse rotation according to the present invention.

FIG. 2 is a plan view of FIG. 1, showing that the diameter ratio of the friction disk is more than twice as large as small.

Claims (1)

[Claims] 1. A mechanism in which a small disk or a large disk of a biaxial terminal changes a speed ratio or a rotation direction by means of a roller.