JPS60198625A - Cursor shift device - Google Patents

Abstract

PURPOSE:To improve the operability with shift speed and shift amount of a cursor by using rolls having different diameters in response to the position on a rotary shaft and changing the contact position of said rolls and a rotary ball in response to the up/down movement of the rotary ball. CONSTITUTION:For a cursor shift device, a rotary ball 2 is set rotatably within a housing 1 together with supporters 1b such as springs, etc. which support the housing 1 at the prescribed height from an operation surface 3 of a desk, etc. at an area peripheral of the lower side surface of the housing 1. The ball 2 can move up and down within the housing 1, and rolls 4a and 4b are pressed to the ball 2 by a spring 8 to detect the revolutions of the ball in the (x) and (y) directions. These rolls have truncated cone shapes and vary their revolving speeds in response to the push-down position of the ball 2. Thus the rotational frequency and revolving speed of those rolls are changed continuously by changing the push-down amount of the housing 1. This facilitates a shift of a cursor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a cursor moving device for moving a cursor on a CRT screen or the like.

[Prior Art] Conventionally, there is a so-called mouse as a device for moving a cursor on a CRT screen. This mouse has an internal pole that contacts the desk and rotates freely when the device is moved on the desk. It has a small roller that detects rotational components separately in the direction of , and a switch that outputs an output signal corresponding to the number of rotations of the small roller coaxially with the small roller. The movement of the cursor is controlled by the output signal of this switch.In this type of cursor movement device, the small roller rotates at a constant speed ratio (rotation ratio) relative to the pole, so the speed at which the device is moved on the desk and the speed on the screen are The ratio of cursor movement speeds is always constant.

Furthermore, the ratio between the amount of movement of the device and the amount of movement of the cursor on the screen is also constant. That is, conventionally, in order to move the cursor quickly, it was necessary to move the device quickly on the desk, and it was also necessary to move the device by an amount corresponding to the amount of movement of the cursor. Therefore, it is not possible to change the speed and amount of movement of the cursor without changing the speed and amount of movement of the device on the desk, which is inconvenient in terms of operation. Conventionally, in such cases, for example, separate keys for high-speed and low-speed switching were provided to change the speed of cursor movement, but this required operation of the high-speed and low-speed keys in addition to operating the moving device. There was a problem that the operation became complicated and the moving speed of the cursor could not be changed continuously.

[Purpose] The present invention has been made in view of the conventional problems described above, and its purpose is to provide an operation that allows the speed and amount of movement of the cursor to be continuously increased by simply pressing down on the device. The purpose of this invention is to propose a cursor moving device with excellent performance.

[Example] Hereinafter, the present invention will be explained in detail using drawings showing a preferred embodiment.

FIG. 1 shows a cursor moving device according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view in the axial (or X-axis) direction. 1 is the exterior of the device, and a hole 1a is provided approximately in the center of the lower surface.

Reference numeral 2 denotes a rotary pole rotatably installed inside the exterior 1. Around the lower surface of the exterior work, there is a support body lb made of a retractable member such as a spring that supports the exterior work at a predetermined height from the operation surface 3 when the exterior work is placed on the operation surface 3 such as a desk. It is provided. With this support 1b, when the exterior work is pressed down on the operation surface 3, the support 1b contracts as shown in Fig. 2, and the exterior work approaches the operation surface 3, and when the push is released, the restoring force of the support 1b causes the support 1b to contract. Return to the state shown in Figure 1. Further, the rotating pole 2 is disposed within the exterior 1 so as to be movable in the vertical direction,
A part of it protrudes from the hole 1a of the exterior work to the outside of the lower surface. Due to the structure described above, when the exterior work is placed on the operation surface 3 as shown in Fig. 1, the rotary pole 2 protrudes from the hole 1a by a predetermined amount and comes into contact with the operation surface 3, and the exterior work is placed on the operation surface 3. Support body 1b
When the pole 2 is moved while sliding, the rotating pole 2 rotates accordingly. Also, when the exterior trim is pressed down, the exterior trim moves downward, and the position of the rotary pole 2 is relatively shifted inward by the amount of movement as shown in Figure 2, and in this state, the exterior trim is moved from the operating surface. 3, the rotating pole 2 rotates.

4a and 4b are truncated conical rollers that contact the rotating pole 2. The rollers 4a and 4b each have arms 5 that run perpendicular to each other.
When the exterior worker is moved in the front-rear direction of the drawing (hereinafter referred to as the X direction), the roller 4a rotates in response to the rotation of the rotary pole 2. When the exterior worker is moved in the lateral direction of the drawing (hereinafter referred to as the X direction), the roller 4b rotates in response to the rotation of the rotary pole 2. Roller 4a.

The arm 5 of 4b is supported by the exterior work so that it can rotate vertically about the shaft 6.

The rollers 4a and 4b have the same structure and support mechanism, except for the direction in which they are held. A switch 7 detects the rotation of the roller 4a provided on the arm 5, and provides an output signal proportional to the number of rotations of the roller 4a. As this switch 7, for example, a tacho generator or the like is used. Further, 9 is its output signal line. With the above configuration, the rotation of the rotary pole 2 is decomposed into components in the X direction and the X direction by the rollers 4a and 4b, and an output proportional to the number of rotations thereof can be obtained. Note that 8 is a spring provided at one end of the arm 5 that rotates, and the other end is fixed to the exterior work. This spring 8 exerts a force in the direction of pushing the arm 5 upward.

Since each of the rollers 4a is in contact with a portion of the rotating pole 2 below the horizontal diameter position, in the state shown in FIG. 1, the roller 4a is pushed downward by the rotating pole 2, and the spring 8 is compressed. The arm 5 becomes almost horizontal.

At this time, the roller 4a is in contact with the rotary pole 2 at a portion A having the largest diameter. Further, when the exterior trimmer is pressed down, the rotating pole 2 is shifted upward, so the roller 4a is pushed by the spring 8 and tilts upward to the right about the shaft 6 as shown in FIG. The contact position gradually moves from part A to part B, which has the smallest diameter. As shown in Fig. 2, when the exterior work is pushed down to the lowest position, the roller 4a contacts the rotating pole 2 at the part B, and when the amount of pushing down the exterior work is smaller than that shown in Figure 2, the roller 4a contacts the rotary pole 2 at the part B. and B makes contact with the rotating pole 2. That is, the contact position between the roller 4a and the rotary pole 2 can be changed within the range from A to B by changing the amount of depression of the exterior worker.

Next, the operation of the cursor moving device configured as above will be explained.

When the device is lightly placed on the operation surface 3 and the exterior work is moved in the X direction as shown in FIG. 1, the rotary pole 2 rotates and the rotation is transmitted to the rollers 4a. At this time, if the diameter of the rotary pole 2 is D and the diameter of the A portion of the roller 4a is E, then the number of rotations nl of the roller 4a when the rotary pole 2 rotates n times is D/E×n. Further, if the rotational speed of the rotating pole 2 is V, the rotational speed vl of the roller 4a is D/EX
It becomes v.

Next, when the exterior worker is pushed down and moved as shown in FIG. 2, the roller 4a contacts the rotary pole 2 at the portion B and rotates as described above. In this case, if the diameter of the B portion of the roller 4a is F, the roller 4 when the rotating pole 2 rotates n times
The rotational speed n2 of a is D/FX n, and the rotational speed v2 of the roller 4a is D/FX n with respect to the rotational speed V of the rotating pole 2.
It becomes v.

Here, since E > F and D/E < D/F,
When the rotation speed n of the rotating pole 2 is constant, n 2 > n
1, and when the outer device is pressed down, the number of rotations of the roller 4a becomes larger, and a larger output can be obtained. Therefore, even if the amount of movement of the device is the same, the distance the cursor moves will be greater when the cursor is pressed down. Also, v2 >v
1, so when the outer device is pressed down, the roller 4a is
As the rotational speed of the cursor increases, the moving speed of the cursor also increases. Note that the diameter of the roller 4a gradually decreases from A to B, so by changing the amount of depression of the external device, the rotation speed of the roller 4a can be varied between Nl and Nl, and the rotational degree of rotation can be adjusted between Vl and V2. It can be changed continuously within the range.

Therefore, from the above, according to the cursor moving device of this embodiment,
The amount and speed of movement of the cursor can be continuously increased by a simple operation of pushing the device down on the operation surface 3, making the operation of moving the cursor extremely easy.

[-Effects] As described above, according to the present invention, the amount and speed of movement of the cursor can be increased by simply pushing down the exterior of the device without changing the amount and speed of movement of the device, resulting in extremely easy operation. will improve.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a cursor moving device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the cursor moving device according to the present embodiment in a depressed state. Here, l...exterior, 2...rotating pole, 3...
Operation surface, 4a, 4b...roller, 5...arm, 6...
- Shaft, 7... switch, 8... spring. Patent applicant Canon Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] an exterior, a rotary pole that is rotatably and vertically movably housed in the exterior and protrudes from a lower surface of the exterior and rotates in contact with an operating surface; rollers having different diameters according to the rotational speed; means for holding the roller so that the contact position between the roller and the rotating pole changes in response to the vertical movement of the rotating pole; and an output signal that corresponds to the number of rotations of the roller. By pressing down the exterior on the operating surface, the contact position of the roller with respect to the rotating pole changes on the side surface of the roller, so that the ratio of the diameters of the rotating pole and the roller becomes continuous. A cursor moving device characterized in that the cursor moves in a large size.