JPS6233080B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a printing belt structure used in a printing device of a labeler.

Conventional printing belts of this kind have an endless belt with characters for printing and characters for reading arranged in rows, and this belt is attached between a rotating disk and a pedestal in the printing device. When the printing belt is moved in this manner, the printing belt may be slightly shifted relative to the rotating disk, which has the disadvantage that the printed strings arranged for printing become irregular.

For this reason, conventional methods have been taken to increase the frictional resistance between the printing belt and the rotating disk to eliminate the misalignment of the printing belt, but this increases the tension on the printing belt and makes printing difficult. In addition to the disadvantage that the belt does not move smoothly, there is also the disadvantage that the cost increases because the material for the printing belt must be selected.

The present invention aims to provide a printing belt structure that can eliminate such disadvantages with a simple and inexpensive structure.

The printing belt structure of the present invention will be explained below with reference to the attached drawings. Fig. 1 is an exploded perspective view of a printing device for a labeler using the printing belt structure of the present invention. In this drawing, for convenience of explanation, the printing belt structure is shown. Although only one is shown, several print belt structures are actually used.

As shown in FIG.
It has an elevating frame 1 that moves up and down with the rotation of the frame 1, and a printing mechanism 2 provided within the frame.

The printing mechanism 2 includes a protrusion piece 21 as a selector inserted into the body, a selector shaft 22 inserted into a mounting hole 11 provided in the elevating frame 1, and a plurality of Turntable 31
and a printing belt 3 attached to this rotary disk 31
2, a pedestal 23 provided below the lifting frame 1 so as to face the selector shaft 22 and on which the tip of the print belt 32 is hung, and the selector shaft 2. 22 and an indicator 24, which is configured to rotate a desired rotary disk 31 by the selector shaft 22.

The selector shaft 22 is inserted into the mounting hole 11 and supported so as to be slidable in the axial direction, and is configured to be able to rotate at a desired position.

The rotary disk 31 has the selector shaft 22 in the center.
A through hole 311 is formed through which the through hole 311 is inserted, and an appropriate number of grooves 312 are radially recessed on the inner periphery of the through hole 311.

The rotary disk 31 is fitted in parallel to the selector shaft 22 with its cut grooves 312 communicating in the axial direction of the selector shaft 22, and therefore the protrusion piece 21 of the selector shaft is connected to the selector shaft. On the other hand, when the selector shaft rotates, it engages with the kerf 312 of a specific rotary disk to rotate the rotary disk. The indicator 24 is constructed as follows. First, the indicator 24 is formed so as to be inserted into the positioning hole 12 provided in the lifting frame 1, and a connecting portion 241 is provided at the end to connect it to the selector shaft 22, thereby forming the selector shaft. 22 in the axial direction.

Since the connecting portion 241 is formed in an occluded shape to enable rotation of the selector shaft 22, the indicator 24 does not move when the selector shaft 22 rotates.

Further, the indicator 24 is connected to the selector shaft 2.
An arrow-shaped protrusion is formed on the indicating means at a position facing the second protrusion piece 21, and the position of the protrusion piece 21 can be confirmed by this protrusion.

The printing belt 32 is provided with printing marks 321 for stamping on its outer surface sequentially in the longitudinal direction of the belt, and among the printing marks 321 is a printing mark 321' located outside the mounting base. Reading character 32 that displays the same character as the printed character 321'
2' appears at the reading position by the indicator 24, the reading character 3 is
22 are provided.

The printing belt 32 is cut at one place and made into a band shape, and both ends thereof are bent to the side opposite to the surface on which the printing 321 is provided, that is, inward, and the engaging portion 32 is bent.
It was made in 3,323.

The tips of the above-mentioned locking parts 323, 323 are further bent outward to form locking ends 323a, 323a. Therefore, when the above-mentioned printing belt 32 is rolled up into a missing ring shape by bringing its both ends close together, the above-mentioned The locking ends 323a, 323a now face each other.

A pair of locking grooves 313, 313 are notched in the outer peripheral surface of the rotary disk 31 so as to be close to each other, and a projection piece 31 is provided between the locking grooves 313, 313.
4 are provided.

The locking groove 313 is provided at the base of the protruding piece 314,
A pair of locking recesses 31 communicate with the groove bottom of 313.
3a and 313a are cut out from opposite directions, and the locking groove 313 is made to tightly fit the locking portion 323 of the printing belt 32, while the locking recess 313a is formed so that the locking end 323a is inserted into the locking groove 313. It is made to fit and lock.

Furthermore, the protruding piece 314 is connected to the stoppers 25 and 26 of the printing mechanism 2 provided in the lifting frame 1.
The stoppers 25 and 26 are made long so as to come into contact with the rotary plate 32, and these stoppers 25 and 26 are made to protrude from the elevating frame 1 to the front and rear surfaces of the rotary disk 32, as shown in FIG.
The protruding pieces 314 are configured to abut and engage with each other as the rotary disk 32 rotates.

Therefore, the rotation angle of the rotary disk 32 is regulated by the stoppers 25 and 26.

In the embodiment, since the protruding piece 314 is configured to reach the reading position, a non-printing portion 324 is formed on the outer surface of the printing belt 32 so that no printing is present on the front surface of the cradle when the protruding piece 314 is in the reading position. has been done.

Since the printing belt structure of the present invention is as described above, it can achieve the following effects.

The rotary disk 31 holds the printing belt 32 at both ends.
Since the printing belt 32 is fixedly attached to the rotary disk 31, it can be prevented from sliding against the rotary disk 31 and the printed characters will be misaligned. There is no need to force it,
The printing belt 32 can be fed easily and smoothly.

A locking end 323a is bent at the tip of the locking portion 323 of the printing belt 32, and this is fitted and locked into a locking recess 313a cut out at the base of the protrusion 314. During the feeding operation, the force applied to the locking portion 323 in the pulling direction acts to push the locking end 323a into the locking recess 313a, thereby preventing the printing belt 32 from detaching from the rotary disk 31. Prevented.

Since the projecting pieces 314 are used as abutting members for the stoppers 25 and 26, the rotation angle of the rotary disk 31 can be determined based on the attachment point of the printing belt 32, and therefore the attachment of the printing belt 32 can be determined based on the attachment point of the printing belt 32. It is easy to configure the structure so that no excessive force is applied to any part.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a printing device using the printing belt structure of the present invention, Fig. 2 is a side view showing the above printing belt structure in use, and Fig. 3 is a main part of the printing belt structure of the above. It is a side view which expanded the part. In the figure, 3 is a printing belt structure, 31 is a rotary disk, 3
13 is a locking groove, 32 is a printing belt, and 323 is a locking portion.

Claims (1)

[Claims] 1 A pair of locking grooves are recessed in the outer circumferential surface so as to be close to each other, and a protruding piece is provided between the locking grooves so as to protrude from the outer circumferential surface, and the base of the protruding piece is provided with the above-mentioned locking groove. A rotary disk having a locking recess formed therein that communicates with the groove bottom, both ends bent inward to form a locking portion, and a pair of locking portions tightly fitted into the locking groove; A printing belt is formed by bending the ends of both of the locking portions so as to face each other to form a locking end, and the locking end is fitted into and locked in the locking recess, and the protruding piece is configured to rotate as described above. The rotation angle of the rotary disk is controlled by contacting a stopper on the printing mechanism side provided in a lift frame that holds a plurality of disks in parallel, and the printing belt is configured to restrict the rotation angle only at the engaging portion. A printing belt structure characterized in that it is fixed to a board and is made to be hung on a pedestal on a printing mechanism side facing a rotary board.