JPS58116182A - Cover opening detecting mechanism - Google Patents

Abstract

PURPOSE:To enable an operator to inspect safely the interior of a casing in which an operation section and a control section are housed, by a method wherein means for detecting the opening of opening and closing sections of the casing is provided and the operation of the operation section is blocked by a control section in response to signals from the detecting means. CONSTITUTION:In a terminal unit, especially a printing unit, detecting sections 11 and 11 for detecting the opening of a first opening and closing section (a top cover) 20 and that of the second opening and closing section (an acrylic cover) 30 are provided and the detecting signals from the detecting sections 11 and 11 are inputted to input terminals A and B of an OR circuit so that an operation section 4 is controlled by an operation control section 3 through an opening detecting section 1 and an opening and closing control section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (11) Technical Field of the Invention The present invention relates to a cover opening detector mK, and in particular, the present invention relates to a cover opening detector mK, in particular, when a cover provided in a housing housing a printing device such as a printing device is housed and the cover is opened and the device is opened. It relates to a danger prevention mechanism that stops the operation of the device so that the work eagle 1 is not affected by the operation.

(2) Prior art and problems In terminal devices, especially printing devices that involve physical operations,
Usually, a top cover that can be opened and closed is provided on the top of the casing in case there is a need to replace the seat, ribbon, or type wheel. Operators and maintenance personnel open the top cover and work by inserting their hands into the exposed mechanical parts as necessary. Of course, it is a general rule to turn on the power before starting work to prevent the mechanical parts from operating during work, but for simple work, it is recommended to work with the power connected. There were many. Therefore, there was a risk that the operator would be injured if he or she accidentally touched the operation switch, causing the machine to operate. Therefore, in the prior art, an attempt has been made to send an opening signal to the control section when the top cover is opened, to stop the device, and to ensure the safety of the operator during work. However, as the mechanism of the device has become more complex, using one cover per cover has become more inconvenient depending on the maintenance, repair, and parts replacement work.
A housing has been commercialized that opens and closes in two directions, and has two covers: the smaller cover for easy work, and the larger cover for work on both sides. It is necessary to provide a detection mechanism for each cover to detect the opening and closing of the cover, which has the disadvantage that the detection mechanism becomes 4111- (3) Purpose of the Invention The purpose of the invention is to solve the above-mentioned two defects. It is an object of the present invention to provide a new cover opening detection mechanism that detects a cover opening with one detection mechanism.

(4) Structure of @Akira The cover opening detection mechanism according to the present invention that achieves the above-mentioned object houses a device consisting of an operating section and a control section that controls the operating section, and opens and closes a predetermined surface position of the optical casing. a first opening/closing part and a second opening/closing part on the page, the first opening/closing part and the jI
Opening detection means for detecting the opening of at least one of the opening/closing parts of I2 and outputting a signal during running, and a closing control part for outputting a signal for blocking the operation of the operating part, and the opening configuration is provided. The occluding signal outputted from the controller is inputted to the control section to close the operation of the operating section.

(5) Examples of the invention The following diagram will clarify the details of non-invention.

Figure m1 is a diagram of the theory Fy3 of the cover opening/closing operation of the fuselage, which is an example of the present invention.
The open-air view of the top cover) and the open feel of the second opening/closing part (acrylic cover).

In the figure, 10 detector, 1lIrL discharge detector, 20 top cover, 20-IFi) knob cover 200 rotation pivot, 30 acrylic cover, 30-1 contact, 3
0-2 is a pivot shaft 560Fi housing of the acrylic cover 30. The top cover 2 (1 mounted on the top plate of the casing 600 rotates in the direction of the arrow R about the nine pivot shafts 20-1, and the mechanism part of the device (not shown) that is housed in the casing 60 C is indicated by a thin ◆). Express.

Also, the acrylic cover 30ri) is a part of the tongue cover 20, which rotates in the direction of arrow R' about the rotation support shaft 30-2 provided on the top cover 20 to open, and opens the mechanical part of the device. It is something that is expressed. Therefore, by opening the top cover 20, the acrylic cover is simultaneously opened by 30%. , a cover configuration. The acrylic cover 30 is provided with a protruding contact 30-1 near the pivot shaft. On the other hand, the sensing element 1 is mounted on the side inner wall of the housing 60.
F and A emission detection parts 11 with 0 protruding are provided. The contactor 30-1 and the sensing cable 10 are in contact with each other with the acrylic cover 30 closed. When the top cover 20 or the acrylic fist cover 30 is opened, the contact 30-1
When the detection element 10 is separated, the percent open detection section 11 detects this state. Since the acrylic cover 30 is provided with a pivot shaft on the top cover 20, when the top cover 20 is opened, the acrylic cover 30 is inevitably opened, and the contact 30-1 and the sensing element 1G are separated. It has a structure that allows

FIG. 1g2 is a block diagram illustrating the present invention in detail.

In the figure, 5 is logical 0RIi! Circuit, 1 Ifi open detection section, 2 occlusion control section, 3 control section, 4 operation section of the device, 6
is the open detection means, and the top
Open signal input terminal of cover 20 or acrylic cover 30 (as shown in FIG. 1, since the opening of one cover is detected by only one detecting cable 10, terminal A,
It is not necessary for both B to be present.

When the contactor 30-1 shown in FIG. is input to the occlusion control unit 2. Close control unit 2#-i close Ii1 signal S1 is input to control unit 3, and power I of control unit 3Fi device (not shown) is input.
Either drop the Fk (not shown) or send a heavy signal to the operating section 4. In any case, the physical movement of the operating unit 4 is inhibited (0(6)) Other inventions! #! Embodiment FIG. 3 is an explanatory diagram of another embodiment of the present invention, and is a cover shape diagram having a foldable structure.

In the figure, Figure 1 and Dohogo indicate the same thing.

In the figure, the acrylic fur cover 30Fi)
The top cover 20 is opened by rotating in the direction of the arrow Q', and the top cover 20 is opened in the direction of the arrow Q' (9 rotations of the pivot shaft 20-1). It is understood that when the acrylic cover is opened, 30% of the acrylic cover is opened. (7) Still another embodiment of the invention FIG. 4 shows still another embodiment of the present invention! 5! This is a clear figure, and the difference from Figures 2 to 3 is that it opens by sliding instead of opening by rotation.

In the figures, the same numbers as in the *2vA to s3 figures indicate the same things,
40 is a slide kite for the top cover 20, and 50 is a slide guide for the acrylic cover 30.

The mark in the figure shows that by sliding the top cover 20 along the slide guide 40, it moves integrally with the acrylic cover 30 in the direction of the arrow P to expose the device, and the transducer 30-1 and the sensing element are exposed. 10 is separated, and the mineral acrylic cover 30 is moved along the slide guide 50 at the same IQ-.
The surface 30-1 of the cover 2Of) and the detection element 10 are separated from each other.

Several embodiments of the present invention have been described above, but there are also other examples, such as: ■ A combination of rotating the top cover and sliding the acrylic cover; ■ Sliding the top cover and rotating the acrylic cover. Other variations, such as combinations, are easily conceivable.

(8) Effects of the Invention According to the present invention, there is an effect that it is possible to detect the opening of a cover of a case having a plurality of covers using only one detection element, and the structure is simple and the worker is safe. This has the great effect of creating a mechanism sufficient to guarantee this.

[Brief explanation of drawings]

ll & 1 Figure L - Opening operation of the cover as an example, % compilation 2
MG is a block diagram showing the operating principle, and Figures 3 and 4 are diagrams of the cover opening operation in other embodiments.
6 is an open detection hand screw, 2#i closing control section, 3 is a control section, 4
10 is an operating section, 10 is a detection element, 11 is an open detection section, 20 is a top cover, and 30 is an acrylic cover.

Claims (1)

[Claims] (1) A first opening/closing part that opens and closes a predetermined surface position of a casing housing a device consisting of an operating part and a control part that controls the operating part, and a second opening/closing part, and the first opening/closing part. and an opening detection means for detecting the opening of at least one of the second opening/closing parts and outputting a signal during running, and a closing control part for outputting a signal to block the operation of the operating part, Cover open detection by inputting a good signal output from the detection means to the close 1 control section, inputting the output close am to the control section, and using ◆ that blocks the operation of the operating section as an ll# image. mechanism.