JPS6220296Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a hand-push rotary roller printer. Conventionally, a rolling roller is pivotally supported on a handle, printing base paper is polymerized and wrapped around the surface of a printing ink-impregnated material wrapped around the outer periphery of the rolling roller, and the printing base paper is rolled by hand rotation of the rolling roller. Hand-push rotary roller printers that print characters, etc. on paper are known, but in this roller printer, the rolling roller is supported by a handle on a central shaft and rotates freely. Therefore, the rolling rollers must be rotated manually to align the printing start position, and even when printing by rolling the rollers, it is difficult to accurately stop the rollers from rotating at a predetermined printing end position. Furthermore, as a conventional technique that solves this problem, there is also known a mimeograph machine disclosed in Publication of Utility Model Publication No. 31-6806, but this machine has a rotating shaft of a rectangular frame located at the center of the original paper pasting frame. Since the base paper pasting frame is rotated and deviated to the printing start position by a weight attached to the lower frame of the square frame, it is essential to attach the weight, which results in a complicated structure and high cost. It was hot.

Furthermore, in order to restrict the rotational limit of the base paper pasting frame, a square frame that rotates and collides with the handle-equipped container frame is required, and this also poses the problem that the structure cannot be simplified.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and by providing a flat surface for stopping rolling on the outer periphery of the rolling roller, and making the rotating shaft of the roller eccentric from the center of the roller, the outer periphery of the roller is The rolling start portion close to the flat surface of the printer always stops rotating vertically downward when the printing device is lifted due to the offset of the center of gravity.

An embodiment of this invention will be described below with reference to the drawings. In the figure, 1 is a handle that has roller shaft attachment parts 1a and 1b, and 2 is a rolling roller that is pivotally supported by this handle.
It may be a chevron-shaped surface as shown in FIGS. 3 and 3, or a circular plane as shown in FIG. 5). Reference numerals 4a and 4b are rotary support shafts integrally provided at both ends of the roller 2, which are fitted into holes in the roller shaft mounting portions 1a and 1b of the handle 1 to rotatably support the rolling roller 2. These roller rotation support shafts 4a, 4b
is from the roller center O so that when the entire printer is lifted from the paper surface P, the rolling start portion 2a close to the flat surface 3 on the outer circumference of the roller always rotates vertically downward due to the offset of the center of gravity. It is provided at an eccentric position as shown in FIGS. 2 and 5. For example, the diameter of the roller 2 is 40 mm, and the flat surface 3 is
In the case of a chevron-shaped surface as shown in Fig. 2, which is set in an angle range of 90 degrees, the rolling start portion 2 of this chevron-shaped surface
The roller rotation support shafts 4a and 4b are located on the diameter line connecting the corner point 3a on the a side and the roller center O, and the eccentricity of the support shafts with respect to the roller center O is 3 mm.
By making the roller rotation support shafts 4a and 4b eccentric in this way, the rolling start portion 2a of the roller 2 is necessarily vertically downward due to the shift of the center of gravity, no matter what angular posture the handle 1 is held. The rotation will be stopped so that it is facing the same direction.

Note that 5 in the figure is a printing ink-impregnated material that is wrapped around the outer circumference of the roller 2, excluding the flat surface 3 for stopping rolling, by adhesive or the like, and an open-cell foam material having an appropriate thickness is used. . 6 is this printing ink impregnating material 5
A base paper for printing which is wound around the surface of the paper and whose both ends are adhesively fixed with adhesive tape or the like at the position of the flat surface 3,
Letters, etc. are cut out in advance on this paper using an iron pen or the like. Reference numeral 7 denotes a roller rotation stopper knob used when winding the base paper 6, and is provided at the end of the roller rotation support shaft 4b. Since the roller printer of this invention has the eccentric structure of the roller shaft as described above, when the handle 1 is held, the rolling roller 2 naturally rotates with the center of gravity shifted to one side by the eccentric support shaft, and the outer peripheral surface of the roller Since the rolling start portion 2a stops rotating at a position facing downward in the vertical direction, there is no need for the troublesome operation of manually rotating the rolling roller to align the printing start position as in the conventional method. Moreover, when the rolling start portion 2a of the roller 2 is brought into contact with the paper surface P as shown in FIG. 4A and the roller 2 is manually rotated in the direction of arrow A, the printing base paper 6 can be easily printed on the paper surface P, and at this printing end position, the roller 2
Since the flat surface 3 stops rotating when it comes into contact with the paper surface as shown in FIG. be able to. Furthermore, the fourth
When the entire roller printer is lifted in the state shown in Figure B, the rolling roller 2 will return to rotation with its rolling start portion 2a facing vertically downward, so there is no need to attach a weight as in the conventional case. , the structure can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a front view of a roller printer showing an embodiment of this invention, Fig. 2 is a partially cutaway side view thereof, and Fig. 3 is a partially cutaway side view of the roller printer.
The figure is a central vertical sectional view taken along the - line in Figure 1, and Figure 4.
Figures A and B are explanatory views of the state of use, and Figure 5 is a side view showing a modification of the rolling roller. 1...Handle, 1a, 1b...Roller shaft attachment part, 2
...Rolling roller, 2a...Rolling start part, 3
... Flat surface for stopping rolling, 4a, 4b ... Roller rotation support shaft, O ... Roller center, 5 ... Printing ink impregnation material, 6 ... Printing base paper, P ... Paper surface.

Claims (1)

[Scope of utility model registration request] In a device in which a printing ink-impregnated material and printing base paper are wound around a rolling roller that is pivoted on a handle, and characters, etc. on the printing base paper are printed on the surface of the paper by manual rotation of the rolling roller, the rolling roller is A flat surface for stopping rolling is provided on the outer periphery of the roller, and the rolling start portion close to the flat surface on the outer periphery of the roller always stops rotating vertically downward when the printer is lifted due to the center of gravity being shifted to one side. A hand-push rotary type roller printer, characterized in that the rotational support shaft of the roller is eccentric from the center of the roller.