JPH0511241U - Display structure of key top - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide a knob that fits on the key top, and to display the operation functions on the front of this knob to facilitate changing the display of the key top. [Structure] A fitting portion provided at a substantially central portion of a key top for operating a controller of an electronic device, a knob to be fitted into the fitting portion, and a knob insertion opening of the fitting portion to fix the knob. And a concave portion provided on at least one surface where the knob fits with the fitting portion, and a display portion showing a key operation function on the front surface of the knob.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display structure of a key top provided on a panel surface of an electronic device, and particularly to a display structure of a key top suitable for changing the display of the key top according to a change in the specifications of the device.

[0002]

[Prior art]

 Conventionally, many key top display structures shown in FIGS. 4 to 6 have been provided. FIG. 4 is a perspective view of a key top display in which a display nameplate is provided on the key top, and FIGS. 5 (A) and 5 (B) are perspective views of the key top displaying key operation functions by printing, and FIG. 6 (A). , (B) is a perspective view of a keytop display having a display nameplate on the panel surface.

In the figure, reference numeral 1 denotes a panel of an electronic device, and a key top is attached to a predetermined position of the controller for operating a controller (not shown) arranged on the panel 1. Functions are displayed by key operation. The display of this key top has various kinds of structures, and FIG. 4 is a conventional example that is the closest to the present invention. It has a structure in which a display nameplate 11 is pasted on the front surface of the keytop 10, for example, a molded product. A key recess 10 was provided with a recess at the position where the display nameplate 11 was attached, and the display nameplate 11 was attached to this recess (a shape having a clearance for the adhesive) with an adhesive.

Further, as a display character or a symbol printed and displayed, for example, FIG. 5 (A) is formed by printing the display character 21 on the key top 20, and FIG. 5 (B) is near the key top 30. It was formed by printing the display characters 31 on the 1st panel. Further, as one formed by printing display characters or symbols on the display nameplate, for example, in FIG. 6A, one display character 41 is printed at a predetermined position on a plurality (two in the figure) of the key tops 30. The display nameplate 40 of FIG. 6 was formed by adhering to each keytop 30, and in FIG. 6B, the individual display nameplate 50 was formed in the vicinity of the keytop 30.

As described above, the display of the key top is formed by printing or a display nameplate (printed on the nameplate) according to the key operation function of the controller.

[0006]

[Problems to be solved by the device]

 However, in the conventional keytop display structure described above, when the keytop display is changed due to the specification change of the equipment or the destination change, the keytops 10 and 20 of FIG. 4 and FIG. It is necessary to replace all of the tops 10 and 20, and it is also possible to print directly on panel 1 (in the case of FIG. 5 (B)) or to attach display labels 41 and 50 directly to panel 1 (see FIG. 6 (A), In the case of (B)), it was necessary to replace panel 1 or change the nameplate.

As described above, replacement of key tops, panels, name plates, and the like has poor workability, and more replacement parts are required, resulting in a large increase in production cost and lack of serviceability.

The present invention has been made in view of the above points, and the purpose thereof is to solve the drawbacks of the conventional example, to provide a knob to be fitted on the key top, and to display an operation function display on the front surface of the knob. The key top display structure is provided to facilitate the change of the key top display.

[0009]

[Means for Solving the Problems]

 The key top display structure of this invention is a key top display structure in which a key top for operating the controller of an electronic device is mounted on the panel surface and the key operation function is displayed. Section, a knob to be fitted into the fitting section, a projection section provided at the knob insertion opening of the fitting section for fixing the knob, and provided on at least one surface where the knob fits with the fitting section. By providing a concave portion and a display section showing a key operation function on the front surface of the knob, it is possible to easily change the display of the key top in response to the change of the key operation function accompanying the specification change of the equipment.

[0010]

[Action]

 According to this invention, the key top for operating the adjuster of the electronic device is formed of an elastic member such as rubber, and the fitting portion is provided at substantially the center of the key top, and the knob is provided at the fitting portion. Fit to form a key top for adjustment. A protrusion is formed on the knob insertion port of this fitting part, and when the knob is inserted into the fitting part, the end of the knob is locked to the protrusion and the knob is firmly fixed to the key top. ..

A display unit is provided on the front surface of the knob, and a key operation function can be displayed on the display unit to perform a key top operation.

Further, when the knob is provided with a recess on at least one surface that fits with the fitting portion of the keytop, and when the display of the keytop is changed due to a change in the specifications of the device, etc., a tool is engaged in the recess of the knob. The knob can be stopped by pulling it out, and the knob whose display has been changed can be re-fitted into the fitting portion of the key top to form the adjustment key top, and the display of the key top can be easily changed.

[0013]

【Example】

 An embodiment of the display structure of the key top according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

FIG. 1 is an exploded perspective view showing a key top and a knob attached to the panel 1, FIG. 2 is a sectional view, and FIG. 3 is a perspective view showing an operation of extracting the knob. In the figure, reference numeral 2 denotes a key top made of an elastic member such as rubber. A fitting portion 2a is provided substantially in the center of the key top 2, and a knob is provided at a knob insertion opening of the fitting portion 2a. A protruding portion 2b that locks in is formed. Reference numeral 3 denotes a knob that is fitted into the fitting portion 2a of the key top 2. The knob 3 fits into the fitting portion 2a and comes into contact therewith, for example, a concave portion 3a is formed on the upper and lower surfaces (shown in the cross-sectional view of FIG. 2). In addition, the knob 3 is provided with a display character 3b on the front surface thereof to indicate a key operation function. Reference numeral 4 is a tool for removing the knob 3.

An adjustment key top for operating an adjuster of an electronic device is attached to a predetermined position of the panel 1, and a display portion 3b for displaying a key operation function is formed on the adjustment key top. The controller can be operated by looking at the display portion 3b.

The adjustment key top is made by, for example, inserting a knob 3 into a fitting portion 2a of the key top 2 formed of an elastic member such as rubber, and inserting it into a protruding portion 2b provided at a knob 3 insertion opening of the key top 2. An end portion of the knob 3 is locked and fixed, and the display portion 3b showing the key operation function of the knob 3 is displayed with a display character or a symbol such as a print or a colored character in a molding character.

The adjustment key tops 2 and 3 of the electronic device configured as described above are displayed on the display unit 3b when the display of the adjustment key tops 2 and 3 is changed due to the specification change of the device or the destination change. It is possible to remove the knob 3 by inserting the tool 4 only in the existing knob 3 as shown in FIG. 3 and inserting the tool 4 between the fitting portion 2a and the knob 3 to lock the tool 4 in the recess 3a of the knob 3. This tool 4 has a sharp needle tip, and for example, a driver tip can be used.

That is, another knob 3 whose specification has been changed and displayed on the fitting portion 2a from which the above-mentioned knob 3 has been removed is fitted again to easily change to an adjustment key top that displays a key operation function associated with the specification change of the device. can do.

In this way, by changing the attachment of the key top 2 to the controller of the device, by preparing the necessary number of knobs 3 having the display portion 3b of the key operation function according to the change of the device specifications. It is possible to deal with it by changing only the knob 3 without it.

Further, by forming the knob 3 with a transparent member and irradiating it from a light source inside the device or an LED lamp, an illuminated keytop for adjustment can be realized. That is, the key top structure of the electronic device can be constructed by distinguishing the adjustment key tops whose display contents can be changed.

[0021]

[Effect of the device]

 As described above, the display structure of the key top according to the present invention does not change the key top mounted on the controller, but only the knob having the display section is changed to change the key operation function according to the specification change of the device. The display of the key top can be changed, so the key top is used for adjusting the key top due to the frequently used character breaks, scratches, and disappears, or the key top is changed when the device specifications are changed or the destination is changed. It has the effect of being able to easily deal with the situation and having excellent serviceability.

Especially, unlike the conventional example, it is possible to secure the quality of the equipment by the work accompanying the change of the key top display without replacing the panel or the entire key top, thereby improving the productivity of the replacement work and increasing the productivity. There is also an effect that the cost can be reduced.

Moreover, it has excellent features such as a simple structure and easy implementation because it can be constructed at low cost.

[Submission date] December 20, 1991

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

[Problems to be solved by the device]

However, in the conventional keytop display structure described above, when the keytop display is changed due to the specification change of the equipment or the destination change, the keytop 20 shown in FIG. It needs to be replaced, and it can be printed directly on panel 1 (in the case of Fig. 5 (B)) or by attaching display labels 41, 50 directly to panel 1 (in the case of Fig. 6 (A), (B)). , And the one with the key top nameplate 11 attached (in the case of FIG. 4) , it was necessary to replace the panel 1 or change the nameplate.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a key top display structure of the present invention.

FIG. 2 is a sectional view of an adjustment key top mounted on a panel.

FIG. 3 is a perspective view showing a tool for extracting a knob from a key top.

FIG. 4 is a perspective view showing a conventional example.

5 is a perspective view showing a print display of a conventional example, and FIG.
(A) is a perspective view showing a printed display on the key top, FIG.
(B) is a perspective view showing a printed display on the panel.

FIG. 6 is a perspective view showing a display nameplate of a conventional example.
FIG. 6A is a perspective view showing a plurality of key top displays with one display nameplate, and FIG. 6B is a perspective view showing each key top display with a display nameplate.

[Explanation of symbols]

 1 Panel 2 Keytop 2a Keytop fitting part 2b Projection provided on the keytop insertion hole 3 Knob 3a Recess provided on the knob 3b Knob display 4 Tool

Claims (1)

[Claims for utility model registration] [Claim 1] In a display structure of a keytop that displays a key operation function by mounting a keytop for operating a controller of an electronic device on a panel surface, the keytop is approximately at a central portion A fitting portion provided, a knob to be fitted into the fitting portion, a projection portion provided at a knob insertion opening of the fitting portion to fix the knob, and at least one surface where the knob fits to the fitting portion And a display section showing a key operation function on the front surface of the knob,
A keytop display structure that allows the display of the keytop to be changed in response to changes in the key operation functions that accompany changes in the specifications of the device.