JPH0773774A - Name paper fixing device - Google Patents

Abstract

PURPOSE:To install a name paper in a key board easily by providing an opening groove for insertion of name paper and a spacer for securing a space for insertion of name paper in the surface sheet. CONSTITUTION:Plural key switches 12 are arranged on a printed substrate 10, and a sheet metal 30 is arranged opposite to the substrate 10 with a space (d) corresponding to height of the key switch 12, and key holes 33 corresponding to the key top of the key switches 12 are formed in the sheet metal 30. The top surface of the key top is covered with a surface sheet 40, and a name paper 50 for displaying the content of the key switch 12 is placed between the surface sheet 40 and the sheet metal 30 or the key top. Furthermore, an opening groove for insertion of the name paper 50 and a spacer 42 for securing a space for insertion of the name paper 50 between the surface sheet 40 and the sheet metal 30 or the key top are provided in the surface sheet 40. Insertion of the name paper 50 is thereby facilitated, and even in the case where one name paper 50 is inserted, rigidity to be required for insertion can be secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a name paper fixing device for displaying the contents of each key of a keyboard used in a control system or the like, and more particularly to a structure for smoothly mounting the name paper.

[0002]

2. Description of the Related Art In a keyboard of an industrial control device, contents specific to each key are defined according to a process to be controlled. Then, according to the applicant's suggestion, Shokai Sho 61
The technique as disclosed in Japanese Patent No. 81338 is used. That is, since the keys are arranged in a matrix in the vertical and horizontal directions on the keyboard, a name paper is provided corresponding to each row or each column, and each name paper is attached to the keyboard for each row or each column. It Similarly, Japanese Utility Model Laid-Open No. 3-80932 discloses a structure in which each name paper is attached to a keyboard for each row or each column.

[0003]

However, since the name paper is inserted for each line of the keyboard, there is a problem that the number of name papers increases, the insertion work is troublesome, and the number of parts increases. It was The present invention has solved the above problems, and an object of the present invention is to provide a name paper fixing device that has a small number of name papers and is easily attached to a keyboard.

[0004]

According to the present invention to achieve such an object, a plurality of key switches (11, 12) are arranged on a printed circuit board (10), and a sheet metal is formed at intervals (d) corresponding to the key switches. (30) faces the printed circuit board, has a key hole (33) corresponding to the key top of the key switch, is formed in the sheet metal, and has a surface sheet (40) covering the top surface of the key top, The name paper fixing device in which the name paper (50) for displaying the contents of the key switch is placed between the surface sheet and the sheet metal or the key top has the following configuration.

That is, the opening groove portion (43) for inserting the name sheet, which is provided in the vicinity of the key switch group to be displayed on the name sheet of the name sheet, and the interval for inserting the name sheet are set to the above-mentioned surface sheet. And a spacer (42) secured between the metal plate and the key top.

[0006]

The name paper is stored in the chamber formed between the top sheet and the sheet metal or key top. Therefore, the opening groove is provided to clarify the insertion position and a sufficient gap is secured by the spacer. With this arrangement, the key top of the key switch group to be displayed on the name stamp can be handled by a single name stamp, which facilitates the mounting work.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. Figure 1
2 is a cross-sectional view showing the configuration of an embodiment of the present invention, FIG. 2 is a plan view of the keyboard, and the target portion of FIG. 1 is represented by II. In the figure, a printed circuit board 10 is a key switch 1
1 and 12 are mounted, and other parts necessary for a keyboard are also mounted. Key switch for name paper 12
Is located in the middle of the keyboard, and here two sets of key switches of 8 rows and 4 columns are arranged side by side. The key switch 11 is divided into an upper side and a lower side of the name card key switch 12, and is not a target to be displayed on the name sheet, and is displayed uniformly on all models such as alphanumeric characters and function keys. Characters are printed. Name paper 5
0 prints the characters that display the contents of each key switch 12.
It is written, and it is inserted through the opening groove portions 43 provided on the left and right of the name paper key switch 12.

For the stud 20, the sheet metal 30 is attached to the printed circuit board 1.
It is held at an interval d with respect to 0, and is fixed by screws 21
Is used. The sheet metal 30 is a structural material such as a steel plate, and key holes 33 are formed corresponding to the key switches 11 and 12. The adhesive layer 31 is attached to the surface sheet 40 side of the sheet metal 30, and is made of a material such as rubber having a thickness substantially matching the top surface of the key top exposed from the key hole 33. The setting sheet 32 is a thin dustproof sheet, and prevents the dust from entering the chamber where the key switch 12 is located through the key hole 33.

The surface sheet 40 covers the surface of the keyboard, and is formed with a window so that the written contents of the name paper 50 on the lower side can be seen through from above, or the entire surface is transparent. The step portion 41 is a marginal portion provided in the topsheet 40, and corresponds to the height of the spacer 42. The spacer 42 secures a gap between the surface sheet 40 and the setting sheet 32 (substantially the top surface of the metal plate 30 or the key top) to facilitate the attachment of the name paper 50.

In this case, the spacer 42 can secure a sufficient space for insertion, and the name paper 50 can be easily inserted from the opening groove portion 43. As a result, the rigidity required for insertion is ensured even if there is only one name paper 50, and the mounting work can be performed smoothly. The name paper 50 is guided by the spacer 42 and is stopped near the target key switch 12, so that the necessary display can be reliably performed.

[0011]

As described above, according to the present invention, the opening groove portion 43 and the spacer 42 are provided in the topsheet 40 to facilitate the insertion of the name paper 50, so that the name paper 40 is integrated and the cost is low. In addition, there is an effect that the labor of insertion is eliminated.

[Brief description of drawings]

FIG. 1 is a configuration cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of the keyboard, and a target portion of FIG. 1 is indicated by II.

[Explanation of symbols]

 10 Printed Circuit Board 12 Key Switch 30 Sheet Metal 40 Surface Sheet 42 Spacer 50 Name Paper

Claims (1)

[Claims] 1. A plurality of key switches (11, 12) are arranged on a printed circuit board (10), a sheet metal (30) faces the printed circuit board at an interval (d) corresponding to the key switch, and the key switch is also provided. Key hole (33) corresponding to the key top of the key sheet is formed in the sheet metal, and has a surface sheet (40) covering the top surface of the key top, and a key switch is provided between the surface sheet and the sheet metal or the key top. In the name paper fixing device on which the name paper (50) for displaying the contents of (5) is placed, an opening groove portion (4) provided in the vicinity of the key switch group to be the name paper display object of the surface sheet for inserting the name paper
And a spacer (42) for ensuring a space for inserting the name paper between the surface sheet and the sheet metal or the key top.