JPS59206933A - Cursor moving key switch - Google Patents

Abstract

PURPOSE:To realize a cursor movement with excellent operability, by constituting a key top in such a way that the key top can be slid and inclined and setting two contacts in each of eight directions, and then, changing the cursor moving speed in accordance with the contacting condition of the contacts. CONSTITUTION:A spring 7 and ball 6 are inserted into each of four guide holes 4B-1 installed at an interval of 90 deg. to the main body case 4A of a cursor moving key switch 4. Supporting projections 5B-1 are installed at an interval of 90 deg. correspondingly to the balls 6 to the cylindrical section 5B of a key top 5 having a dome-like operating section 5A and the cylindrical section 5B is supported under an elastically balanced condition. Supporting holes 5C-1 are installed at an interval of 45 deg. to the bottom surface of a supporting section 5C and a spring 9 and ball 8 are inserted into each supporting hole 5C-1. The balls 8 pushes a flexible sheet 12 and separates or contacts the flexible sheet 12 from or with a fixed contact installed in th hole 15 of a spacer 13. Moreover, plate spring contacts 10-1-10-2 are installed to a space 4A-1 of the main body case 4A corresponding to the fixed contact 16 and they are brought into contact with each other or separated from each other by means of the inclination of the key top 5. A cursor is moved at a low speed by means of the fixed contact 16 and at a high speed by the plate spring contact 10. Therefore, the operability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a key switch for moving a cursor.

Prior Art Conventionally, as a key switch for moving a cursor to set the position of a cursor on a CRT display section, a key switch that responds to the press of a key is placed near a single key that can be pressed at eight positions, for example, up, down, left, right, and diagonally. A switch having a plurality of contacts that outputs a cursor movement signal has been proposed. By pressing a key, the cursor can be moved in the direction corresponding to the pressed position. Since such conventional key switches can only move the cursor at a constant speed, they have the disadvantage that it takes a lot of time to set the cursor position in the case of a long cursor movement distance. was.

In addition, the key switch that solves the above-mentioned drawbacks has two contacts: one that outputs a low-speed movement signal in response to a light key press, and the other that outputs a high-speed movement signal in response to a strong key press. There is a device that achieves very quick cursor positioning by installing the contact point at the same position as the cursor, and making it possible to move the cursor in two modes: low speed and high speed.

However, in the case of the above-mentioned key switch, switching between low speed and high speed is performed by adjusting the force with which the key is pressed down, which makes it difficult to operate and has the drawback that it is difficult to set accurate force + position.

Purpose The present invention has been removed in view of the problems of the conventional cursor movement key switch as described above, and its purpose is to provide a simple table operation for cursor movement in two-stage modes of low speed and high speed. It is an object of the present invention to propose a key switch for moving a cursor that enables quick and accurate cursor position setting.

EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing preferred embodiments of the present invention.

FIG. 1 is a perspective view of a computer equipped with a key switch for moving a cursor according to an embodiment of the present invention. As shown in FIG. 9, inside the main body 1 of this personal computer computer, there is a CPU 3 for moving the cursor and an RA.
MI 4 and ROMI 5 are stored. Also, 2
3 is a display section provided on the main body 1 of the computer, and 3 is a key installed on the main body 1 via a connection cord 3A. A cursor moving key switch 4 is connected to the key gate section 3 via a signal line 3B.

The configuration and operation of the cursor moving key switch 4 will be explained with reference to FIGS. 2 to 9.

In the figure, 4A is a main body case of the cursor moving key switch 4, and 5 is a key top installed on the main body case 4A. A sectional view of the key switch 4 is shown in FIG. The key top 5 includes a dome-shaped operation section 5A and an operation section 5.
The lower surface of A has a shape having a shaft portion 5B extending downward from the center and located within the main body case 4A, and a cylindrical support portion 5C for supporting a switch lever 10, which will be described later. As shown in FIGS. 3 and 5, four support portions 71 are located on the outer circumference of the shaft portion 5B of the key top 5 at intervals of 90° from each other.
u5B-1 is provided. In addition, a holding part 4B for holding the key top 5 is formed in the main body case 4A, and guide holes 4B-1 are formed in four locations corresponding to the supporting protrusions 5B-1 in the holding part 4B.
is provided. A spring 7 is provided in this guide hole 4B-1.
The guide sole 6 is accommodated therein), and the guide sole 6 receives the biasing force of the spring 7 and presses against the support protrusion 5B-1. Because of this front structure, the key top 5 receives the bias from the spring 7 uniformly from all four directions, and the key top 5 receives the force from the holding portion 4B inside the main body case 4A.
If you hold the operation part 5A and apply force in the vertical and horizontal directions and horizontal and diagonal directions of x+, and slide in eight directions shown by arrows in FIG. Further, as shown in FIGS. 3 and 8, support holes 5C-1 are provided at eight locations around the lower end surface of the support portion 5C corresponding to the sliding direction shown in FIG. 2. A switch 8 is housed in the support hole 5C-1 and is biased by a spring 9 and partially protrudes from the switch 8, respectively.

At the bottom of the main body case 4A are a printed circuit board 14 and a printed circuit board 1 on which a predetermined circuit pattern (not shown) is formed.
A keyed switch is arranged, which is made up of a spacer 13 and a conductive flexible sheet 12 (for example, a conductive film) stacked on top of each other. As shown in FIG. 4 on the spacer 13, contact holes 15 are provided at positions where the circumference of a predetermined radius intersects with the eight directions in which the key top 5 slides. In addition, the contact hole 15 on the printed circuit board 14
A fixed contact 16 exposed in the contact hole 15 is arranged at a portion corresponding to the contact hole 15 . A contact switch for moving the cursor is configured by the flexible sheet 12 and the fixed contact 16 facing each other through the contact hole 15 of the spacer 13, and when the flexible sheet 12 is pressed down and flexed to contact the fixed contact 16, A cursor movement signal is output.

The above-mentioned switch lever 8 attached to the support portion 5C of the key top 5 is pressed against the above-mentioned flexible sheet 12 with a constant pressure by the biasing force of the spring 9. Further, in FIG. 3, reference numeral 18 denotes a holding plate for stably positioning the key top 5 with respect to the printed circuit board 14. This holding plate 18 is fixed to a support rod 5C-2 extending from the lower surface of the support portion 5C through a hole 17 penetrating each of the flexible sheet 12, the spacer 13, and the printed circuit board 14, and is located close to the back surface of the printed circuit board 14. There is.

As shown in the figure, a space 4A-1 surrounding the holding part 4B is formed between the main body case 4A and the holding part 4B. In the inner part of the main body case 4A corresponding to the sliding direction of the key top 5, plate-to-plate contacts 10-1 and 10-2 facing each other with a spacer 11 in between are provided in the space 4A-1. It is provided so that it protrudes inward. The leaf spring contacts 10-1 and 10-2 constitute a contact switch 10 that outputs a cursor high-speed movement signal. Further, at a position facing the contact switch 10 on the periphery of the lower surface of the operating portion 5A of the key top 5, there is a post 5A-1 that protrudes downward by a predetermined length.
is formed. As can be seen from the above configuration, the key top 5 is held by the springs 7 and 9, so
When the periphery of the key top 5 above the operating portion 5A is pressed down, the key top 5 tilts to one side as shown in FIG.

Next, the operation of the cursor moving key switch 4 configured as described above will be explained.

9- First, move the cursor 20 on the display section 2 shown in FIG.
The case of moving to 0a will be described. Hold the operation part 5A of the key top 5 and slide it in the direction of the arrow X shown in FIG.
contact hole 1 on the printed circuit board 14 with
50 parts. Then, since the switch lever 8 receives the biasing force of the spring 9 and is in pressure contact with the flexible sheet 12, the switch is pressed by the lever 8, and the flexible sheet 12 contacts the flexible sheet 12 as shown in FIG. The cursor 2 bends downward through the contact hole 15 and contacts the fixed contact 16.
A cursor movement signal of 0 is output. This movement signal is sensed by the CPU 13 and the cursor 20 is
A movement is made in the child direction. At this time, if the distance at the setting position 20at' of the cursor 20 is long, the position setting is
− It takes time. As shown in FIG. 7, when the key top 5 is in the state shown in FIG. 7, the force field table is pressed in the direction of the arrow in FIG. do. The key top 5 is tilted as shown in FIG. 8 against the biasing forces of the springs 7 and 9, and as the key top 5 is tilted, the gas 5A-1 on the lower surface of the operating section 5A is moved to the leaf spring contact 10-1. Press and bend the leaf spring contact 1
Bring it into contact with 〇-2. Then, the leaf spring contacts 10-1 and 1
A high-speed movement signal of the cursor is outputted by the touch of 0-2, and this signal is sensed by the CPU 3 to cause the cursor/I/20 to move at high speed in the X direction. After the cursor 20 on the display section 2 has moved to the set position 20a, if you release your hand from the key top 5, the key top 5 will quickly return to the home position shown in FIGS. 3 and 5 by the biasing force of the spring 7.9. It returns and the movement of the cursor 20 stops.

It goes without saying that when returning the cursor 20 from a high-speed movement state to a normal speed, the key top 5 may be released while being slid to the state shown in FIG. 7. Furthermore, when moving the cursor 20 to the position 20b or 20c on the display section 2, the key top 5 may be slid in the Y direction or in the upper right direction. Then, if necessary, high-speed movement is performed by the same operation as described above. The key top 5 is smoothly slid in the diagonal direction by the spring 7 and the idle pole 6.

Here, the first point regarding the speed control of the cursor in the cursor movement key switch constructed and operated as described above will be explained.
This will be explained using the flowchart shown in FIG.

First, when the key top 5 is operated, the CP is activated in step 30.
Contact information of each contact point is detected by U13, and step 3
1, it is determined whether the contact information is the first contact information when the key top 5 is moved in the sliding direction. If it is the first contact information (low speed movement signal), step 32
In step 33, the direction of movement of the cursor is determined based on the contact information, and in step 33, low-speed movement control of the cursor is performed. Next, if the first contact information is met, step 34
In step 35, the direction of movement of the cursor is determined based on the contact information, and in step 35, high-speed movement control of the cursor is performed.

Effects As described above, according to the present invention, it is possible to reliably move the cursor in the two-stage mode of low speed and high speed with a simple operation. Therefore, a key switch for moving a cursor is provided which is extremely easy to operate and is capable of quickly and accurately setting the cursor position.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wrist computer equipped with a key switch for moving a cursor according to an embodiment of the present invention, FIG. 2 is a plan view of a key switch for moving a cursor according to an embodiment of the present invention, and FIG. Fig. 4 is a plan view showing the structure of the sweep that constitutes the cursor movement key switch, Fig. 5 is a longitudinal sectional view of the cursor movement key switch, and Fig. 6 is the display section. 14- Figures 7 and 8 are partial cross-sectional views to explain the operation of the cursor moving key switch; Figure 9 is a plan view of the arm of Figure 1;
FIG. 10 is a block diagram schematically showing the personal computer. FIG. 10 is a flowchart regarding the speed control of the cursor using the cursor movement key switch. Here, 4...key switch for cursor movement, 4A...
...Body case, 5...Key top, 6...Guide-? -le, 7.9... spring, 8... switch -le, 10-1.10-2... plate spring contact, 12...7
13... Spacer, 14... Printed circuit board, 16... Fixed contact. 112th! Iris 2 Figure '3t21 Figure 4 Figure 5

Claims (1)

[Claims] A cursor movement key switch for setting the position of a cursor on a display unit includes a key top that is slidable and tiltable, and a cursor movement signal that varies in speed in response to the sliding and tilting movements of the key top. A key switch for moving a cursor, which is equipped with a contact that outputs .