JPH04137323A - Press button device - Google Patents

Abstract

PURPOSE:To enable any abnormal function of a press button to be announced by providing an annunciator for informing inability of operational restoration of operation contact, being energized by a press button, and an annunciator informing intermediate stop of the press button during its pressing stroke. CONSTITUTION:When a press button 4 is pressed to open a return contact 7, and an operation contact 2 is closed a control device 9 is energized to operate a timing device 8 through the device 9. After a certain time passes, the device 9 is de-energized when the return/contact 7 is closed. When the operation contact 2 is closed, an annunciator 10 is energized to announce turn on-trouble to appropriate control rooms, or to a central information center. When the operation contact 2 is not closed, an annunciator 11 is energized to announce self-cock of the press button to the control rooms or to the central information center in the same way as the case of the annunciator IU.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a push button device used in an elevator call button switch, etc.

[Prior Art] FIG. 4 is a sectional view of a conventional push button disclosed in, for example, Japanese Utility Model Publication No. 52-56475.

In the figure, (1) is an insulating substrate, (2) is an operating contact provided on the substrate (1), and (3) is a substrate with a cavity (3a) corresponding to the operating contact (2) formed. (1) is a top plate mounted on top, (4) is a button body fitted into the blank space (3a) so as to be able to move up and down as shown in Fig. 4, and (5) is a button body (4).
A contact provided on the lower surface of the unit and facing the operating contact (2);
(6) is a return spring that urges the button body (4) upward.

The conventional push button is constructed as described above and is maintained in the state shown in FIG. 4 when not operated.

When the button body (4) is pressed by manual operation, the operating contact (2) is short-circuited by the contactor (5), and the push button is activated.

[Problems to be Solved by the Invention] In the conventional push button as described above, the button body (4) may be tilted with respect to the operating axis within the space (3a), or the button body (4) may be deformed, etc. A so-called self-lock occurs,
If the return spring cannot return the button, the push button may lose its function.

In addition, the contactor (5) may be welded to the operation contact (2), causing a so-called on-failure and causing the push button to lose its function.

There is also a problem in that a pushbutton that has lost one function is left as is.

The present invention was made to solve this problem, and an object of the present invention is to obtain a push button device that notifies a functional abnormality of a push button.

[Means for Solving the Problems] The push button device according to the present invention includes a return contact of the push button, a 9 timer, and a first alarm that is energized via the control device to notify that the operation contact cannot be restored. A second annunciator is provided to notify an intermediate stop in the pressing stroke of the presser and the pushbutton.

[Function] When the time limit has elapsed after the operation contact of the push button device configured as described above has been activated and the return contact is inoperative, the first alarm is energized when the operation contact is in operation, and the operation contact is not activated. When inside, the second alarm is activated.

[Embodiment] FIGS. 1 to 3 are diagrams showing an embodiment of the present invention, and in FIG. 2, the same reference numerals as in FIG. 4 indicate corresponding parts.

(7) is a return contact consisting of contacts provided on the inner surface of the space (3a) and the button body (4) facing each other; (8) is a timer that operates after a predetermined time period 9, for example, 60 seconds has elapsed;
) is a control device that has an abnormality determination program, and includes an engineering 10 boat (9a), a RAM (9b), a CPU (9c),
It is composed of a computer (9e) having a ROM (9d). (10) is the first alarm that indicates that the operation contact (2) cannot be restored; (11) is the button body (
This is a second alarm that notifies the intermediate stop of the pressing stroke of 4).

As described above, the operation of the configured push button device is controlled by the third button.
This will be explained using the flowchart shown in the figure. That is,
When the button body (4) is pressed, the return contact (7) opens and the operation contact (2) closes, the control device (9) is energized, the step (Lot) is started, and the process proceeds to step (102). A timer (8) operates via the control device (9);
When the predetermined time limit has elapsed, the process advances to step (103). If the return contact (7) is closed in step (103), the control device (9) is deenergized. Also, step (10
If the return contact (7) is not closed in step 3), the process proceeds to step (104), and if the operating contact (2) is closed, the first alarm (10) is energized in step (105). and an appropriate management office.

A power-on failure is reported to the central information center. Then, in step (104), if the operating contact (2) is not closed, the process proceeds to step (106), and the second alarm (1
1) is energized, and similarly to the first alarm (10), the self-locking of the push button is notified to the control room and central information center. Therefore, it is possible to quickly repair a push button in which an abnormality has occurred, and it is possible to prevent an accident that may occur if the abnormality of the push button is left unaddressed.

[Effects of the Invention] As explained above, in the present invention, after the push button is pressed and the operation contact is activated, when a predetermined time period has elapsed and the return contact is not activated, the first alarm is activated when the operation contact is in operation. When the operating contact is inactive, the second alarm is activated. This makes it possible to quickly repair the push button in which an abnormality has occurred, and has the effect of preventing accidents that may occur if the abnormality of the push button is left unaddressed.

[Brief explanation of the drawing]

1 is a longitudinal section and overall configuration diagram of a push button showing an embodiment of the push button according to the present invention; FIG. 2 is a conceptual circuit diagram showing the electrical connection of the device shown in FIG. 1; and FIG. , 1st
FIG. 4, a flowchart explaining the operation shown in the figure, is a longitudinal section of a conventional push button. In the figure, (2) is the operation contact, (4) is the button body (push button), (7) is the return contact, (8) is the timer, (
9) is a control device, (10) is a first alarm, (11)
is the second alarm. In addition, the same parts or corresponding parts in FIG. 1 are indicated by the same = symbols.

Claims (1)

[Claims] A push button having an operation contact that operates when operated, a return contact that operates when the push button returns, a timer that operates after a predetermined time period for the operation of the operation contact, and an operation of the operation contact that cannot be restored. a first alarm for notifying that the push button is pressed, and a second alarm for notifying the intermediate stop of the pressing stroke of the push button.
an alarm, and operates when the return contact is inoperative after the operation of the timer, energizes the first alarm when the operating contact is operating, and energizes the first alarm when the operating contact is inoperable. A push button device including a control device for energizing a second alarm.