JPS6217247Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a plate-making machine for thermal base paper.

In recent years, heat-sensitive base paper has become known, which is made by applying a heat-sensitive resin film to porous thin paper and printing it with a unique light beam such as infrared rays.

Therefore, the object of this invention is to provide a plate-making device for thermal paper having a simple structure that can easily and safely make plates using such thermal paper.

According to this invention, a plate maker for thermal base paper has a main body that is made in the shape of a box with an opening at the bottom, the inner surface is covered with a reflective member, and the opening of the main body is covered with at least one light emitting light bulb. A switch with a safety device that connects a light-emitting bulb to a power source in a manner that allows it to open and close freely, and a press base plate on which the thermal base paper to be plated is placed.The switch has movable contacts. This is a rotary type switch in which a supporting disc-shaped operating member is always biased in the open direction by a spring, and at least one of the piezoelectric members that conducts when a pressing force is applied to the main body during plate making. It has a double safety feature that is installed near the periphery of the opening and can electrically connect the circuit between the rotary switch, the power supply, and the light-emitting bulb.

Other objects, features and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

As shown in FIGS. 1 to 5, the thermal base paper plate maker of this invention includes a main body 2 preferably made of a heat-resistant plastic material in the shape of a box with an open bottom; It mainly consists of a transparent plate member 4 that is removably attached to the opening 11 and a press base plate 6 on which the thermal base paper to be plate-made is placed. Inside the box-shaped main body 2, a reflective member 21 formed in substantially the same shape as the main body 2 and made of a thin plate material such as aluminum, which has good reflectance of light and heat, is provided so as to cover the inner surface. ing. Of course, this reflective member 2
Instead of 1, the inner surface of the main body 2 can be coated with silver-white paint or foil, for example. The top of the reflector is provided with a socket 22 for mounting at least one, and in the illustrated embodiment two, light emitting bulbs 8. Further, a battery chamber 24 that serves as a power source for the light-emitting bulb 8 is formed inside a part of the top of the main body 2, and a cover 16 for taking the battery 25 into and out of the battery chamber 24 is provided on the main body 2. It is set in. The battery chamber 24 is made of an appropriate conductive metal plate and has a substantially semi-cylindrical cross section, and is formed by an appropriate means such as melting and solidifying a portion of the material of the main body 2 that protrudes from a small hole provided at a predetermined position. It can be attached to the main body 2 by means of. The light-emitting bulb 8 may be a conventional plug-in flash bulb or other similar device, and the socket portion 22 into which the light-emitting bulb 8 is attached is located in the battery compartment 24.
It consists of a mount member 26 and a terminal member 27 made of a suitable conductive metal plate similar to the above, and is fixed to the main body 2 by suitable means in the same manner as the battery chamber 24. The mount member 26 is provided with a suitable hole 28 for inserting the base of the light-emitting light bulb 8, and the terminal member 27 is connected to the battery chamber 24, which is electrically connected to the negative pole of the battery 25, for example. ing.

A battery 25 in a battery compartment 24 that provides a power source and a light-emitting light bulb 8
A switch 10 with a safety device is provided for electrically disconnecting the connection. The switch 10 in the illustrated embodiment is a rotary switch with a safety device, and a disc-shaped operating member 31 rotatably supported on the main body 2.
, a movable contact 32 provided at the inner end of the rotating shaft of the actuating member 31, and a cantilever-shaped fixed contact 34 provided corresponding to the movable contact 32. The fixed contact 34 is an extension 4 of a terminal member 41 that forms the positive pole of the battery 25 housed in the battery chamber 24.
2, cantilevered or integrally formed. The disk-shaped actuating member 31 is always biased in the opening direction by a suitable spring. Furthermore, at least one part of the box-shaped body 2, for example near the opening periphery 12, in the illustrated embodiment two diagonally.
Two piezoelectric members 36 (pressure-sensitive conductive members), that is, members that act as a switch that can conduct when a pressing force is applied, are provided, and as shown in FIG. 5, a battery 25 serving as a power source and a luminescent bulb 8 and a rotary switch 10.

Further, a guide groove 14 is provided in the periphery 12 of the opening 11 at the bottom of the box-shaped main body 2 so that the transparent plate member 4 can be slid and inserted in the horizontal direction (in the direction of the arrow in FIG. 3). There is. Guide groove 14 of this main body 2
There are stepped portions 5 on the edges of three sides of the transparent plate member 4 corresponding to
is provided, and when the plate member 4 is inserted and installed, the stepped portion 5 of the plate member 4 engages with the guide groove 14 of the main body 2,
A plate member 4 can be firmly attached to the main body 2. The plate member 4 is preferably made of a suitable transparent plate material such as a transparent acrylic resin material.
The press base plate 6 on which the heat-sensitive base paper is placed consists of a base plate member 7 made of a suitable board material, and a soft pine material 9 such as foamed plastic or felt bonded to the base plate member 7. .

In the plate maker for thermal base paper of this invention constructed in this way, the cover 16 of the main body 2 is opened, the battery 25 is installed in the battery chamber 24, and the cover 16 is opened again.
is closed, the light-emitting bulb 8 is inserted into the socket part 22, and then the transparent plate member 4 is slid along the peripheral part 12 of the opening part 11 of the main body 2 toward the water and inserted. Next, place the press base plate 6 on a flat surface such as a desk or table, and place the desired original on the pine material 9.
, and then place thermal paper on top of it. In this way, the original and the thermal base paper are pressed onto the pine material 9 of the press base plate 6.
Once placed on the press base plate 6, the main body 2 with the transparent plate member 4 attached is placed on the press base plate 6 with the plate member 4 facing down.
When the piezoelectric member 36 is placed on top of the main body 2 and pressed so that pressure is evenly applied from above, the piezoelectric member 36 becomes conductive, and the first switch portion formed by the piezoelectric member 36 is closed. Now, when the switch 10 is turned in the on direction to turn it on, the light emitting bulb 8 emits light, and the heat-sensitive base paper is instantly printed and plate-made. The base paper produced in this way can be attached to a suitable mimeograph machine and printed.

In this way, according to the thermal base paper plate maker of this invention, there is no need to cut the base paper as in the past; simply set up the required manuscript and thermal base paper, and instantly make the plate using a light-emitting light bulb. The light-emitting bulb is activated by a switch with dual safety functions, consisting of a piezoelectric member that is turned on by a pressing force and a disc-shaped actuating member that is constantly pressed in the opening direction by a spring. This has the advantage of providing a plate maker that has a simple and durable structure that can prevent accidental over-operation, is easy to handle, and is safe.

In the illustrated embodiment, two light emitting light bulbs are installed, but it is also possible to use only one light emitting light bulb, and only one piezoelectric member can be used. A suitable push switch may also be used.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the plate maker for thermal base paper of this invention, Fig. 2 is a front longitudinal sectional view of the plate maker main body, and Fig. 3 is a side sectional view of the switch part of the plate maker main body.
FIG. 4 is a bottom view of the main body of the plate maker, and FIG. 5 is a circuit diagram of the plate maker for thermal base paper of this invention. In the figure, 2:
Main body, 4: plate member, 6: press base plate, 8: light emitting bulb, 10: switch, 31: operating member, 32: movable contact, 34: fixed contact, 36: piezoelectric member.

Claims (1)

[Claims for Utility Model Registration] A body made in the shape of a box with an open bottom, the inner surface covered with a reflective member, and provided with at least one light emitting bulb, and a transparent plate provided to cover the opening of the body. In a plate-making machine for thermal paper, the switch is composed of a switch with a safety device that connects the light-emitting bulb to the power source in a freely openable and closable manner, and a press base plate on which the thermal paper to be made is placed. A rotary type switch in which the actuating member of the shape is always biased in the opening direction by a spring, and at least one piezoelectric member that conducts when a pressing force is applied to the main body during plate making is placed near the opening periphery of the main body. A plate maker for thermal paper having a double safety function that can be installed in a rotary type switch and electrically connect a circuit between the power source and the light emitting light bulb.