JPS6137109Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a media width adjustment mechanism that adjusts the width of booklet-like media such as bankbooks and single tickets to a reference edge.

Conventionally, in devices that read magnetic stripes on bankbooks, magnetic cards, etc., or print on predetermined positions on slips, etc., it is necessary to prevent misalignment between the magnetic head or print head and the reading or printing position on these media. Therefore, the media is brought closer to the reference edge. Most conventional width adjustment mechanisms for such devices use a lever or the like to push one end of the medium and bring the other end into contact with a reference end, but this requires that the medium be somewhat stiff.
Furthermore, when media of various sizes and shapes are to be shifted, unless the operating stroke of the lever is made variable, there are problems such as insufficient shifting or damage to the media. Therefore, as disclosed in Japanese Patent Application No. 55-55902, a media width shifting mechanism was recently proposed in which a contact made of a high friction material is pressed against the medium from above and then the contact is moved in the width shifting direction. . This medium width adjustment mechanism rotatably supports an arm having the contactor at one end extending onto the medium of a lever that is rotationally driven in a direction approaching the medium during the width adjustment operation,
A spring is stretched between the arm and the lever so that the contactor moves in a substantially circular arc toward the reference end after contacting the medium.

However, this media width shifting mechanism does not work when one end of the media is aligned with the reference edge in advance, or when the gap between one end of the media and the reference edge is narrow and the width shifting distance is very small. When the contact stops moving, the contact slips on the medium, resulting in wear of the contact.

The present invention was developed in order to eliminate the above-mentioned drawbacks, and its feature is that by rotating the lever via a spring, the medium is removed before the contactor completes the entire width stroke. When the contactor contacts the reference end and stops, the force applied during the remaining stroke is released by the expansion of the second spring, so that the contactor does not slip on the medium.

The present invention will be explained below with reference to the drawings.

Figure 1 is a front view showing one embodiment of the present invention;
3 are a plan view and a rear view of the main parts thereof.

In FIGS. 1 to 3, reference numeral 1 denotes a drive shaft that is rotated by a certain angle by a drive source such as a plunger magnet or a motor (not shown) during the width-aligning operation;
Reference numeral 2 denotes an adjustment lever whose one end is rotatably attached to the drive shaft 1 and whose other end extends above the medium 3 to be width-aligned, and 4 is rotatable to the other end of the adjustment lever 2. a substantially T-shaped adjusting arm supported by the adjusting arm 4; 5 is a contactor attached to the side of the adjusting arm 4 facing the medium;
Made of high-friction and elastic materials such as rubber and polyurethane. Reference numeral 6 indicates the end of the adjuster arm 4 opposite to the contact attachment side and the U of the adjuster lever 2.
A first spring is stretched between the bent side end 2a of the letter shape, a release lever 7 is fixed to the drive shaft 1 by split tightening, and a reference 8 is implanted in the lower end of the release lever 7. A second spring is stretched between the post 7a and the post 2b which is installed on the arm part extending upward from the middle of the adjuster lever 2, and 9 is a base plate on which the medium 3 is placed, one end of which is attached. is the reference end 10.

Next, the operation of the medium width shifting mechanism with the above configuration will be explained.

When the medium 3 is brought closer to the reference end 10, a drive source such as a rotary magnet (not shown) is first activated, and the drive shaft 1 is rotated in the direction of the arrow shown in the drawing. When the drive shaft 1 rotates, the release lever 7, which is fixed integrally with the drive shaft 1, also rotates in the same direction. As a result, the adjustment lever 2 is moved by the second spring 8.
The contactor 5 is pulled to rotate in the same direction as above, rotates in the direction of the medium 3, and moves the contact 5 toward the medium 3.
press against. If the adjust lever 2 continues to rotate, the contact 5 rotates and moves toward the reference end 10 against the tensile force of the first spring 6, and eventually brings its entire bottom surface into contact with the medium 3. .
During this time, the medium 3 is moved toward the reference end 10 by the horizontal displacement of the contactor 5, and one end of the medium 3 is moved toward the reference end 10 by the horizontal displacement of the contact 5.
It stops when it comes into contact with.

On the other hand, when the medium 3 is already in contact with the reference end 10 during the above-mentioned width adjustment operation, or one end of the medium 3 and the reference end 1
If the distance between 0 and 0 is smaller than the amount of horizontal displacement of the contactor 5, the medium 3 will stop before the contactor 5 completes its width-approaching movement. At this time, in the past, the contact 5 slipped on the medium 3 until the drive shaft 1 stopped rotating, but in the above configuration, the second spring 8 expands due to the frictional force between the contact 5 and the medium 3. Fourth
As shown in the figure, only the release lever 7 rotates and the contact 5 remains stationary.

In this way, the width shifting mechanism with the above configuration not only shifts the media to the reference edge, but also handles cases where the width shifting is completed in the middle of the entire process, or where the media is aligned with the reference edge in advance and width shifting is not possible. If necessary, the force applied during the remaining width stroke is relieved by the extension of the spring to prevent the contact from slipping on the medium.

As described above, the present invention has the effect of preventing wear of the contacts that come into contact with the medium and shift the media, and can always achieve a stable shift operation even after long-term use.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention;
The figure and Figure 3 are a plan view and a rear view of the main parts,
FIG. 4 is a diagram showing another operating state of FIG. 1. 1... Drive shaft, 2... Adjustment lever, 3...
... Medium, 4 ... Adjustment arm, 5 ... Contactor, 6 ... First spring, 7 ... Release lever, 8 ... Second spring, 10 ... Reference end.

Claims (1)

[Scope of utility model registration request] In a media width adjustment mechanism that aligns a booklet-like medium, a ticket, etc. to a reference edge, there is a drive shaft that is rotated during width adjustment operation, and a drive shaft that is rotatably attached to the drive shaft and has one end that is to be width aligned. an adjustment lever extending above a medium; an adjustment arm rotatably supported by one end of the adjustment lever and having a contact at an end facing the medium; a part of the adjustment arm and the adjustment arm; a first spring that is stretched between a part of the stretch lever and biases the adjuster arm to rotate in a certain direction; a release lever that is fixed on the drive shaft; and one of the release levers. and a second spring that is stretched between the part and a part of the adjustment lever, and rotates the adjustment lever in a direction toward the medium by rotation of the release lever, and the contactor When one end of the medium comes into contact with the reference end and stops before completing the entire stroke of the movement, the force applied during the remaining stroke is released by the extension of the second spring, so that the contactor does not slip on the medium. A media width adjustment mechanism characterized by the following.