JPS6232071A - Printing apparatus - Google Patents

Abstract

PURPOSE:To further facilitate the confirmation of a printing part and to attain to enhance workability, by mounting an angle adjustable columnar lens to a printing apparatus in a printing line direction. CONSTITUTION:A columnar lens 20 is mounted by a method wherein the plane part thereof is erected and the projections 21a, 21b provided to both ends of said lens 20 are inserted in the grooves 18a, 18b of a noise cover 16 and the columnar lens 20 is rotated in a slit 17. An operator rotates the columnar 20 as as to match with the own physique and projections 19a, 19b are pierced through some of cavities 23a, 23b, 24a, 24b, 25a 25b to be set at a proper angle. The operator confirms a printing part through the columnar lens 20 but the printing part is viewed in a state magnified by the columnar lens 20. Therefore, the operator can accurately confirm the printing part without being affected by the finess of printing or the insufficient lighting of the printing part.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a printing device, and more particularly to a printing device that facilitates visual confirmation of printed portions.

(Prior Art) In general, a printing device has a printing portion covered with a transparent member (noise cover) so as to be soundproof and to enable confirmation of the printing state.

For example, as shown in FIG. 1, in a typewriter 1, the exterior is formed by an under cover 2 and an upper cover 3, and a front cover 5 that covers a printing mechanism 4 is attached to the upper cover 3 so that it can be opened and closed. There is. Furthermore, a noise cover 6 that allows the printed area to be seen through is attached to the front cover 5 so that it can be opened and closed freely, and indoor light (direct light from indoor lighting) is reflected on this noise cover 6, making it impossible to see through the printed area. An anti-reflection plate 7 is attached to prevent this.

Therefore, the operator is not affected by the reflection of indoor light on the noise cover 6 (and can visually check the printing condition).

However, in such conventional printing devices,
When the noise cover that allows you to see through the printed area is closed when the printing device is in use, its angle is fixed. Depending on the angle between the eye position and the surface of the noise cover, it may be difficult to see the printed part through the noise cover. As a result, it is necessary to change the posture in order to check the printing state, which deteriorates work efficiency.

(Purpose of the Invention) Therefore, an object of the present invention is to attach a columnar lens whose angle can be adjusted in the printing line direction to a printing device, thereby making it easier to check the printed area and improving work efficiency. There is.

(Structure of the Invention) In order to achieve the above object, the present invention has an exterior formed by an under cover and an upper cover, a front cover that is attached to the upper cover so as to be openable and closable and covers a printing mechanism, and a front cover that is attached to the front cover so that it can be opened and closed. and a noise cover that allows the printed portion to be seen through, characterized in that a columnar lens is attached to the front cover or the noise cover parallel to the printing line direction and whose angle is adjustable. be.

Hereinafter, the present invention will be specifically explained based on examples.

1 to 9 are diagrams showing an embodiment of the present invention, and this embodiment is applicable to an electronic typewriter.

In FIG. 1, reference numeral 11 denotes an electronic typewriter, and the exterior of the electronic typewriter 11 is composed of an under cover 12 and an upper cover 13. A keyboard 14 is disposed on the upper cover 13, and
A front cover 15 is attached so as to be openable and closable.

This front cover 15 covers a printing mechanism such as a platen and a carriage that moves in the axial direction of the platen, and a noise cover 16 is attached to the front cover 15 so as to be openable and closable.

The noise cover 16 is made of a transparent member, and the printed portion can be seen through.

As shown in FIG. 2, this noise cover 16 has a substantially rectangular slit 17 extending long in the printing line direction, and a top surface of the noise cover 16 is formed on both longitudinal side walls of the slit 17. Open grooves 18a and 18b are formed. As shown in FIG. 3, the grooves 13a and 18b are
The entrance portion of the noise cover 16 is narrowly narrowed relative to the opening on the upper surface thereof, and the inside diameter is expanded into a substantially circular shape. Further, semicircular protrusions 19a and 19b are formed on both longitudinal side walls of the slit 17.
is formed. A columnar lens 20 shown in FIG. 4 is inserted into this slit 17. The columnar lens 20 has a semi-cylindrical shape, and two protrusions 21a, 21b, 22a, 22b and three depressions 23a, 23b, 24a, 24b, 25a, 25b are formed on both sides in the longitudinal direction. has been done.

As shown in FIG. 5, the protrusions 21a and 21b are formed approximately at the center of a semicircular side surface of the columnar lens 20, and have a substantially rectangular cross section extending in the diameter direction of the columnar lens 20. Both sides of the projections 21a, 21b in the longitudinal direction are formed into smooth curved surfaces, and when the projections 21a, 21b are inserted into the grooves 18a, 18b, as shown in FIG. , 18b. The protrusions 22a and 22b are formed in a substantially cylindrical shape.
As shown in FIGS. 1 and 6, antireflection plates 26 are attached to a and 22b. That is, a hole 28 is formed in the flange 27 of the antireflection plate 26, and the projections 22a and 22b are inserted into the hole 28.
The angle of the anti-reflection plate 26 can be adjusted using the projections 22a, 22b and the hole 2.
This is done by manually adjusting the angle maintained by friction between the recesses 23a, 23b, 24
a, 24b, 25a.

25b has recesses 23a, 23b, 24a, 24b, 25a into which the projections 19a, 19b penetrate when the columnar lens 20 is set in the slit 17, and into which the projections 19a, 19b penetrate when the columnar lens 20 is rotated. , 25b, the angle of the columnar lens 20 can be adjusted stepwise.

In addition, both side wall surfaces of the slit 17 in the transverse direction are formed into curved surfaces similar to the outer circumferential surface of the columnar lens 20, and the both side wall surfaces of the slit 17 and the outer circumferential surface of the columnar lens 20 are always in sliding contact. .

Next, the effect will be explained.

First, to attach the columnar lens 20, as shown in FIG. This is done by rotating it.

The operator rotates the columnar lens 20 according to his/her physique, and aligns the protrusions 19a, 19b with either the depressions 23a, 2.
3b, 24a, 24b, 25a, and 25b and center it at an appropriate angle. The operator confirms the printed portion through the columnar lens 20, and the printed portion appears magnified by the columnar lens 20, as shown in FIG. 8.9. Therefore, the operator can accurately confirm the printed area without being affected by the fineness of the printing or the darkness of the printed area, improving work efficiency.

In addition, since an anti-reflection plate 26 is attached to the columnar lens 20, it is possible to reliably check the printed area without being affected by indoor light, and the angle of the columnar lens 20 can be adjusted to suit the physique of the operator. By adjusting the angle of the anti-reflection plate 26, the angle of the anti-reflection plate 26 is automatically adjusted, improving work efficiency. Since the anti-reflection plate 26 is attached to the columnar lens 20 so that its angle can be adjusted freely,
It is also possible to adjust the angle of only the antireflection plate 26.

Furthermore, since both side wall surfaces of the slit 17 in the transverse direction have a surface shape that makes sliding contact with the outer circumferential surface of the columnar lens 20, the outer circumferential surface of the columnar lens 20 is always in contact with the outer circumferential surface of the columnar lens 20 regardless of the adjustment angle of the columnar lens 20. Both side wall surfaces of the slit 17 in the transverse direction are in sliding contact with each other, thereby making it possible to block noise during printing.

In the above embodiment, the columnar lens 20 is attached to the noise cover 16, but it may be attached to the front cover 15. In the above embodiment, the antireflection plate 26 is attached to the columnar lens 20, but it may be attached to the noise cover 16 or the front cover 15 so as to be adjustable in angle.
Angle adjustment of columnar lens 20! The adjustment can be adjusted in three stages, but the number of stages can be increased further.
The angle may be adjusted continuously.Furthermore, although the above embodiment shows the case where the present invention is applied to an electronic typewriter, it goes without saying that the present invention is not limited to this.

Further, in the above embodiment, soundproofing is achieved by bringing the inner surface of the slit 17 into sliding contact with the outer circumferential surface of the columnar lens 20, but the invention is not limited to this. For example, the inner surface of the slit 17 and the outer circumferential surface of the columnar lens 20 A cushioning material may be interposed in between.

(Effects) According to the present invention, by attaching an angle-adjustable columnar lens to the printing device in the printing line direction, it is possible to make it easier to check the printed area, and to improve work efficiency. can.

[Brief explanation of drawings]

1 to 9 are diagrams showing one embodiment of the printing device of the present invention, in which FIG. 1 is a perspective view of the electronic typewriter, FIG. 2 is a perspective view of the noise cover, and FIG. 3 is a perspective view of the electronic typewriter. is an enlarged view of the main part of the noise cover in Fig. 2, Fig. 4 is a perspective view of the columnar lens, Fig. 5 is a partial enlarged view of the columnar lens in Fig. 4, and Fig. 6 is an enlarged view of the main part of the noise cover in Fig. 2.
The figure is a side view showing a state in which the columnar lens is attached to the noise cover, FIG. 7 is an explanatory diagram showing the method of attaching the columnar lens to the noise cover, and FIGS. 8 and 9 are explanatory diagrams of the operation of the present invention. FIG. 1O is a perspective view showing a conventional printing device. 12...Under cover, 13...Upper cover, 15...Front cover, 16...Noise cover, 20...Column lens, 26... Anti-reflection plate.

Claims (2)

[Claims] (1) An exterior is formed by an under cover and an upper cover, and includes a front cover that is attached to the upper cover in an openable and closable manner and covers the printing mechanism, and a noise cover that is attached to the front cover in an openable and closable manner that allows the printed part to be seen through. In the printing device, a columnar lens is provided on the front cover or the noise cover parallel to the printing line direction,
A printing device characterized in that the printing device is attached so that its angle can be adjusted. (2) Claim 1, characterized in that the columnar lens is provided with an anti-reflection plate that covers the upper part of the columnar lens.
Printing device as described in section.