JPH03148016A - Switch mechanism for manipulation of instrument - Google Patents

Abstract

PURPOSE:To easily manipulate a switch in any state whether a front door is opened or closed by so constituting that an end of a projecting part of an operating part provided outside the switch is brought to confront a pressing face of a push button of a switch part mounted inside the switch when the front door is closed. CONSTITUTION:When a front door 1 is closed, a projecting part 7 and a push button 12 are brought in touch with each other through deformation of a flexible part 8 since an outside push button part 6 confronting to an inside switch part 11 of an upper stage is pressed. Accordingly, it is possible to manipulate the switch by moving the push button 12 further. In contrast, since the button 12 of the inside switch part 11 of a lower stage is not exposed from the front door 1, it is impossible to press, namely, manipulate the button 12. An outside operating part includes the flexible part 8, keeping the inside and outside of a front panel 4 in the tightly sealed state. Moreover, when the front door 1 is opened, only the buttons 12 of the switch parts 11 of the upper and lower stages are projected from a cover 15, and therefore the buttons can be pressed, i.e., manipulated.

Description

[Detailed description of the invention]

[Industrial Application Field 1] The present invention relates to an operation switch mechanism for an instrument having a front door that can be opened and closed, and in particular, an instrument operation switch that can be easily operated in both the open and closed states of the front door. Regarding the mechanism. 2. Description of the Related Art A conventional example will be described with reference to FIG. 5, which is a side cross-sectional view of the main part when the front door is closed. In FIG. 5, a front door 21 of a recorder as an instrument is attached to a case 22 via a hinge portion 22a so as to be rotatable and openable. The switches for operating this meter can be broadly classified into those that can be operated from the outside with the front door 21 closed and those that can be operated from the outside with the front door 21 open. The former switch is used relatively frequently, and the latter switch is operated only for initial setting, and thereafter does not allow operation by outsiders or inadvertent contact or abutment. A switch belonging to the former category is a switch that starts an instrument. rREcORD" switch to stop, rD I 5PLAYJ switch to select display contents, rLIsTJ switch to print front side, rFEE to fast forward recording paper.
D. There are switches, etc. Switches that belong to the latter include the rsELEcTJ switch, which is used to increase the number of variations when making various settings, and the switch that increases the number of variations.
There are "△" and "" switches for lowering the settings, and rENTRY and switches used for registering setting data. Returning to FIG. 5, a front plate 24 is attached to the front door 21, and a printed wiring board 25 is attached to the front door 21.
Four push button switches 26 are arranged in parallel at right angles to the plane of the drawing and can be removed by having their push buttons protrude from the front plate 24. These push button switches 26 belong to the former category. In addition, the printer I/wiring board 2 attached to the main body 23 side
The latter type of switch includes four push button switches 26, which are arranged perpendicularly to the plane of the paper and positioned in such a way that the tip of the push button protrudes from the hole in the cover 28. This latter switch is located inside the front plate 24 when it is closed, so
It cannot be operated from the outside and cannot be accidentally touched or abutted.

[Problem to be solved by the invention]

As explained above, in the conventional technology, there is no particular operational disadvantage with regard to the push button switch attached to the -/ body side, but with respect to the push button switch attached to the other front door side. There are disadvantages such as the difficulty in handling the wiring because the front door is opened and closed, and the front door being opened during the third maintenance inspection of the instrument, making it difficult to operate the instrument. SUMMARY OF THE INVENTION An object of the present invention is to provide a switch mechanism for instrument operation that solves the above-mentioned problems of the prior art and can be easily operated in both open and closed states of the front door.

[Means to solve the problem]

In order to solve this problem, the switch mechanism for operating an instrument according to the present invention is a switch mechanism for operating an instrument having a front door that can be opened and closed, and includes an external push button section, a convex section provided on the back of this section, and an external push button section. an external operation section provided on the front door with the external push button section facing outward; a flexible section provided on the outer periphery of the push button section; an internal push button switch section provided on the main body of the instrument; The front door is configured such that when the front door is closed, the tip of the convex portion of the external operating portion is closely opposed to the pressing surface of the push button portion of the internal switch portion.

[Effect]

When the front door is closed, the tip of the convex part of the external operation part is close to the pressing surface of the push button of the internal switch part, so when the external push button part is pressed, the pressing surface of the push button of the convex part is pressed. The internal switch can be operated through contact with the push button, and when the front door is opened, the internal switch can be operated directly by pressing the push button.

【Example】

Embodiments of the instrument operation switch mechanism according to the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of the main part of the embodiment according to the present invention when the front door is closed. In Figure 1, the front door 1 of the instrument
is rotatably attached to the case 2 via a hinge portion 2a so as to be openable and closable. The switches for operating this instrument can be broadly classified into those that can be operated from the outside with the front door I closed and those that can be operated with the front door 1 open, as explained in the conventional example. become. As a switch belonging to the former, rRE
cORDJ switch, rDISPLAY, switch, r
There are LIsT, switch, rFEEDJ switch, etc., and switches belonging to the latter include rsELEcTJ switch, "mu", "" switch, rENTRY, switch, etc. Returning to FIG. 1, a front plate 4 is attached to the front door 1, and four external operation parts 5 arranged in parallel at right angles to the paper are integrally molded from a rubber material at the upper part of the front plate 4. and installed. To explain in more detail, each of the external operation parts 5 includes a short cylindrical external push button part 6, a convex part 7 protruding from the back surface of the external push button part 6, and a flexible part provided around the external push button part 6. It consists of part 8. The external push button part 6 is configured to protrude from a hole drilled in the front plate 4, while
On a printed wiring board 14 attached to the main body 3 side, four internal swing parts 11 are arranged in parallel at right angles to the plane of the drawing. Each of the internal switch sections 11 includes a push button 12 and a switch body 13, and the pressing surface of the push button 12 is closely opposed to the tip of the protrusion 7 of the external operation section 5. Note that the internal switch section 11 is the same as the push button switch 26 in the conventional example shown in FIG. The four sets of each external operation unit 5 and the corresponding internal switch unit 11 described above are rREc]?
DJ switch, rDIsPLAYJ switch, rL I
ST, switch, rFEED. It becomes a switch and constitutes a switch mechanism for instrument operation according to the present invention. Further, internal switch sections 11, which are the same components, are attached to the printed wiring board 14 at a position below each of the above-mentioned internal switch sections 1, arranged in parallel at right angles to the plane of the drawing. However, the push button 1 of the internal switch section 11 in this lower position
2, there is only the back surface of the front plate 4, and no external operation section 5 is present. The four internal switch sections 11 located at this lower part are each rsELE.
cTJ switch, “Δノ, [j switch, rENTRY
It becomes a J switch. Note that the cover 15 shields the internal switch sections 11 at the upper and lower positions, with only the push buttons 12 thereof protruding. Therefore, in FIG. 1, when the front door 1 is closed,
In each of the upper internal switch sections 11, when the corresponding external push button section 6 is pressed, the flexible section 8 is deformed so that the convex section 7 and the push button 12 come into contact with each other, and the push button 12 is further moved to allow operation. can do. However, since the push buttons 12 of the lower internal switch sections 11 are not exposed from the front door 1, they cannot be pressed or operated. Moreover, since the external operation section 5 includes the flexible section 8, the front plate 4
Can maintain airtightness from inside and outside. Now, FIG. 2 is a side sectional view of the main part of the embodiment when the front door is opened. It is in a state where it can be pressed and operated. FIG. 3 is a front view of the embodiment when the front door is closed, and FIG. 4 is a front view of the embodiment when the front door is opened. In FIG. 3, the recorder as an instrument is provided with a front plate 4 on its front door 1, and on the right side of the upper part of the recorder, only four external operation parts 5 are installed so as to be exposed to the surface. Each external operation unit 5 is
rREcORD, switch, rD I SP LAYJ switch, rLIsT, as printed respectively.
, switch, rFEEDJ switch. On the left side of the upper part, a digital display section 17 provided inside the main body (not shown) can be seen through the window glass 16. This display section 17 consists of two parts, left and right, in which channel numbers to be sequentially selected are displayed on the left side and corresponding data values are displayed on the right side. Further, the recording section 19 can be seen through the window glass 18 from the center to the lower part of the front. In FIG. 4, four push buttons 12 corresponding to each of the external operation units 5 are shown in the upper row, and another four push buttons 12 are shown in the upper row.
are placed side by side on the bottom row. The lower push buttons 12 are r S E L E, CT J switch, respectively.
Corresponds to "△", "" switch, and rENTRYJ switch. Note that the four push buttons 12 at the bottom are for the front door 1.
It is not exposed to the surface when closed.

【Effect of the invention】

In this invention, since the predetermined instrument operation switch can be easily operated in both the open and closed states of the front door, it is convenient for normal instrument operation with the front door closed, and It is convenient for maintenance and inspection of the 3I device which is performed with the front door open, and has excellent effects such as easy wiring and maintaining the airtightness of the front door. Of course, instrument operation switches that are not operated when the front door is closed, or that are not to be operated or operated erroneously, may be installed in the conventional manner.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the main part of the embodiment according to the present invention when the front door is closed, Fig. 2 is a side sectional view when the front door is opened, and Fig. 3 is a side sectional view of the main part of the embodiment when the front door is closed. 4 is a front view taken when the front door is opened, and FIG. 5 is a side sectional view of the main part of the conventional example when the front door is closed. Code explanation 1: Front door, 2: Case, 3: Main body, 4: Front plate, 5:
External operation section, 6: External push button section, 7: Convex section, 8: Flexible section, 11: Internal switch section, 12: Push button, 13
Varnish inch body, 14 Niblint wiring board, 15: Cover ■ Ward J Death 104-

Claims (1)

[Claims] 1) An operation switch mechanism for an instrument having an openable/closable front door, which comprises an external push button part, a convex part provided on the back of the external push button part, and a flexible part provided on the outer periphery of the external push button part, and the front door an external operation section provided with the external push button section on the outside; and a push button type internal switch section provided on the main body of the meter;
A switch mechanism for instrument operation, characterized in that, when the front door is closed, a tip of a convex portion of the external operating portion is closely opposed to a pressing surface of a push button of the internal switch portion.