JPH036440Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application of the Invention) The present invention relates to a printing device, and particularly to a printing device installed in a portable label printing and pasting device (commonly known as a hand labeler).

(Prior Art) As shown in FIG. 1, this type of printing device 1 is mounted on the tip of a handle 3 of a hand labeler 2.
By grasping the grip 4 and the handle 3, the handle 3 moves up and down as shown in the figure, and is inked by a rotatably provided ink roller 5 to print the necessary information on the label 6, such as the price of the product, etc. It is used to print product codes, etc. The printed label 6 fed out to the front lower end of the hand labeler 2 is pasted onto the desired product by the pasting member 7.

The specific configuration of this printing device 1 will be explained with reference to FIG. 2, which is an exploded perspective view of the printing device of the present invention.
Between 0 and 11, a plurality of type wheels 12 are engaged with index wheels 15 having index characters 14 on their peripheries corresponding to the contents of the type 13 that these type wheels 12 have on their peripheries. This is the configured configuration.

As the means for engaging the type ring 12 and the heading ring 15, for example, an engaging recess 16 formed between the type characters 13 and an engaging protrusion 17 formed between the heading characters 14 can be engaged with each other. It can be used as a pair.

The type ring 12 is rotatably supported by a marking shaft 19 into which a marking shaft core metal 18 is fitted, and can be set at a predetermined rotational position. In addition, the mark shaft core metal 18
are fixed to the frames 10 and 11 with screws 20.

The index wheel 15 is rotatably supported by a selection shaft 21, and a selection engagement piece 22 provided at the tip of the selection shaft 21 allows a predetermined index character 14 to be selected.

An indicator 24 and a knob 25 are fixed to the selection shaft 21 with screws 23.

Furthermore, a moderation groove 26 formed in this selection shaft 21
The selection engagement piece 22 can be positioned so that a steel ball 28 urged in the direction of the selection shaft 21 by a moderation spring 27 selects an arbitrary index wheel 15 by engaging the steel ball 28. To select the heading ring 15, it is sufficient to align the indicator 29 formed on the indicator 24 with the row of the necessary heading ring 15.

Note that the reference numeral 30 indicates frame 10 and frame 11.
Shows the screws for fixing the combination.

In the printing device 1 having such a configuration, in order to select the necessary type 13, hold the knob 25 and move the indicator 29 of the indicator 24 to the desired heading ring 1.
5, the selection engagement piece 22 engages with the desired heading ring 15 from the inside.

When the knob 25 is rotated, the engaging protrusion 17 is engaged with the engaging recess 16, so that the desired type 13 of the desired type wheel 12 can be selected.

However, although such a printing device 1 requires inking by the ink roller 5 in order to perform its printing function, since the contact area between the type wheels 12 is large, as it is used, capillary phenomenon occurs. As a result, ink penetrates between the type wheels 12, and furthermore, dust and paper powder enters, and furthermore, when dried, it acts like an adhesive, making it difficult to select the type wheels 12, and in some cases. However, there is a problem in that the type wheels 12 in the row adjacent to the row of type wheels 12 to be selected also rotate together.

In this way, when selecting type, the selection engagement pieces 22 are aligned for each row, the knob 25 is rotated, and when the selection is completed, the selection engagement pieces 22 are moved to the next horizontal column. The type 13 is selected by rotating the knob 25.
At this time, if the type wheels 12 of the already selected column rotate together, the print selection function of the printing device 1 will not function at all, which is a fatal problem for the printing device 1.

In order to deal with this problem, metal spacers etc. have been inserted between each type ring 12, but this results in another problem of an increase in the number of parts and an increase in assembly man-hours. .

(Purpose of the invention) In view of the above-mentioned problems, the present invention reliably selects only the type of the desired type row without increasing the number of parts, does not affect adjacent rows, and reduces assembly man-hours. It is an object of the present invention to provide a printing device that does not affect the printing method.

(Summary of the invention) That is, the present invention provides stoppers for preventing rotation of the heading wheel on the left and right sides of the indicator portion formed in the indicator portion of the selection shaft, and the stoppers act as engaging means for the type wheel or the heading wheel. This is a printing device that can be engaged so that only the type wheel or heading wheel of the required column can be selected.

(Example) Next, an example of the present invention will be described based on FIGS. 3 and 4. However, Figures 1 and 2
Portions similar to those in the figures are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 3 shows an enlarged view of the indicating portion 29 of the indicator 24. Stoppers 40 for preventing rotation are integrally formed on the left and right sides of the indicating portion 29 so as to project downward.

As shown in FIG. 4, this rotation prevention stopper 40 faces between the engagement convex portions 17 of the indexing wheels 15, and is positioned in the row of indexing wheels 15 indicated by the indicator 29 of the indicator 24. It engages between the engagement convex portions 17 of indexing wheels 15 in rows adjacent to each other on the left and right.

The rest of the configuration is the same as the configuration explained in FIGS. 1 and 2, so a detailed description will be omitted, but in this configuration, the selection shaft 21 is moved in the axial direction by operating the knob 25. Align the selection engagement piece 22 and the indication part 29 of the indicator 24 with the heading wheel 15 of the column you want to select, and then turn the knob 25 so that the necessary type 13 faces the label 6.
Rotate.

At this time, the indexing wheels 15 in the row designated by the instruction section 29 are guaranteed to rotate as necessary by engaging with the selection engagement piece 22, but the adjacent left and right indexing wheels 15 are used to prevent rotation. Since the stopper 40 is inserted between the engagement protrusions 17, it is obstructed by this and cannot be rotated.

Therefore, even if ink has penetrated between the type wheels 12 and it becomes somewhat difficult to rotate, the type wheels 12 or heading wheels 15 of the column to be selected will
This eliminates the inconvenience that the type wheels 12 or heading wheels 15 in columns other than the above rotate.

In addition, when moving the selection shaft 21 in the axial direction,
Since the stopper 40 for preventing rotation passes through the space between the respective engagement protrusions 17, there is no problem with this movement.

Note that the indicator of the present invention can be applied to any form, and the shape of the stopper for preventing rotation can also be configured to match the shape of the engagement recess 16 or the engagement protrusion 17.

Furthermore, in this embodiment, an example in which the selection shaft 21 engages the heading wheel 15 has been described, but the selection shaft 21
It is also applicable to a type of printing device in which the type wheel 12 engages with the type ring 12.

(Effects) As explained above, according to the present invention, since the stoppers for preventing rotation are provided on the left and right sides of the indicator, the type wheels of columns other than those of the column to be selected will not rotate. However, it is possible to guarantee proper print selection function.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a general printing device mounted on a hand labeler, Fig. 2 is an exploded perspective view of the printing device of the present invention, and Fig. 3 is a perspective view of an indicator, which is a main part of an embodiment of the present invention. FIG. 4 is a perspective view of the main part of the same. 1... Printing device, 12... Type wheel, 13... Type, 14... Heading character, 15... Heading wheel, 1
6... Engagement recess, 17... Engagement protrusion, 21... Selection shaft, 22... Engagement piece for selection, 24... Indicator, 29... Instruction portion, 40... Stopper for preventing rotation.

Claims (1)

[Claims for Utility Model Registration] A plurality of type wheels having various types of type on their peripheries and a plurality of index wheels having index characters corresponding to the type on their peripheries are engaged with each other through engaging means, respectively. a selection engagement piece that is arranged side by side and engaged with either the type ring or the heading ring; and a selection engagement piece that corresponds to the engagement of the selection engagement piece. In a printing device that is provided with a selection axis having an indicator that selectively guides heading characters, on the left and right of the indicator part of the indicator, there is provided information indicating the relationship between the left and right type wheels of the heading wheel selected by the indicator part and the heading ring. 1. A printing device comprising a stopper for preventing rotation of the left and right indexing wheels, each of which is engageable with a matching means.