JPH04355455A - Display structure of mark in print plate - Google Patents

Abstract

PURPOSE:To certainly and easily support a decorative frame in a desired position of a ceiling surface, support a rising/falling lighting equipment in a desired position to a lifting device, and certainly support the rising/falling lighting equipment by a receiving body. CONSTITUTION:A lifting device having a drum 2 for winding a rope 5 and fixed onto the reverse side of a ceiling, a support body 3 having a plurality of angle regulating holes on its rising/falling lower surface, a rising/falling lighting equipment supported by the rope 5 in such a manner as to be capable of rising and falling, and a gauge 7 having a position specifying hole are provided. The mounting position of a decorative frame 6 to the ceiling surface is specified by use of the gauge 7, the decorative frame 6 is fixed onto the ceiling surface, and the angle of the support body 3 to the lifting device is regulated by the gauge 7. Thereafter, the support body 3 is fixed to the lifting device.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in the display structure of marks on printing plates.

0002

2. Description of the Related Art Conventionally, in offset printing and the like, so-called register marks for specifying the position are displayed on the printing plate to prevent misalignment on the printing press. Furthermore, in recent years, when performing multicolor printing in offset printing presses, so-called register marks 2 are printed on each printing plate 1 as shown in FIG. 4 in order to prevent misalignment of patterns in each color. As shown in Figure 4, this register mark has red, blue, and
Printing of yellow, black, etc. marks is practiced.

0003

[Problems to be Solved by the Invention] According to the above-described structure, when displaying the displayed register mark, for example, for red, the operator must use a magnifying glass to display register marks for other colors such as blue, yellow, and black. The image must be erased while being enlarged, which requires a considerable amount of work. Another disadvantage is that the register marks are so small that workers must be very attentive to visually recognize them.

The present invention was invented in view of the above points, and provides a mark display structure on a printing plate that eliminates the need for register mark erasing work and further allows the display of register marks to be easily confirmed. The purpose is to

[0005]

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration. In other words, one of the register marks separated into a plurality of parts is displayed at a desired location on the printing plate. A symbol corresponding to the same register mark will also be displayed on the printing plate.

[0006]

[Function] According to the mark display structure on the printing plate with the above structure, the register mark is displayed in disassembled form, so there is no need to erase the register mark, work efficiency is improved, and the register mark is displayed by color. It becomes easier to distinguish between symbols.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to FIGS. 1 and 3. In the figure, reference numeral 11 denotes the main body of the printing device, and register marks 1 formed by dividing into a plurality of parts are placed at desired locations on the printing plate.
Display one of 2. Reference numeral 13 denotes a printing plate support part in the printing apparatus main body 11, which has a length of, for example, 1150 mm;
It has a width of 1410 mm. 14 is a movable body that moves, for example, in the lateral direction on the front surface of the plate support 13; 15;
A pen 16 is a movable head supported on a movable body 14 and moved in the X-Y axis direction, and displays a registration mark at a predetermined location.
It is configured with 17 is an optical fiber whose tip is supported by the movable head 15, and 18 is a register mark display body adjacent to the optical fiber 17, in which, for example, red, blue, yellow, black, etc. are displayed side by side. . After aligning the tip of the optical fiber 17 with a desired color location, exposure is performed to print and display a register mark on the printing plate.

Reference numeral 19 is a symbol displayed in a so-called square area around the printing plate, and is displayed in correspondence with the color-specific register marks displayed on the printing plate. For example, a for red, b for blue, c for yellow,
If it is black, use the symbol d. This symbol may have either a printed structure or a pen display structure similar to the above-mentioned register mark.

[0009]

[Effects of the Invention] As described above, the present invention is constructed by displaying one of the register marks separated into a plurality of parts at a desired location on the printing plate, so there is no need to erase the register mark. , work efficiency will be greatly improved. Furthermore, since the printing plate is configured with a symbol corresponding to the register mark, it has the unique effect of making it easy to distinguish the display symbol of each color of the register mark when handling the printing plate, such as when installing it in an offset printing machine. has.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a device used to display marks on a printing plate of the present invention.

FIG. 2 is an enlarged perspective view of the movable head in FIG. 1.

FIG. 3 is a plan view of a mark display structure on a printing plate according to the present invention.

FIG. 4 is a plan view of a mark display structure on a conventional printing plate.

[Explanation of symbols]

11　Printing device main body 12 Register mark 13 Printing plate support part 14 Movable body 15 Movable head 16 Pen 17 Optical fiber 18 Register mark display 19 Symbol

Claims (1)

[Claims] Claim 1: A printing plate characterized in that one of a plurality of separated register marks is displayed at a desired location on the printing plate, and a symbol corresponding to the register mark is also displayed on the printing plate. Mark display structure.