JPS62135927A - Pointing device - Google Patents

Abstract

PURPOSE:To smooth the movement of a cursor by providing a cleaning member which contacts a ball to clean up sticking and a cleaning member which contacts encoder rollers 17 to clean up sticking matter. CONSTITUTION:The cleaning member 1 is joined with a ball pressure member so as to contact the ball 16 horizontally. The cleaning member 2, on the other hand, is joined with a main body 11 so as to contact the encoder rollers 17 vertically. When the ball 16 rotates as the main body 11 moves, the cleaning member 1 joined with the ball pressure member 18 cleans up dust and dirt sticking on the ball 16, and the cleaning member 2 joined with the outer periphery cleans up dust and dirt sticking on the surfaces of the rotating encoder rollers 17.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a movement amount detection device for moving a cursor displayed on a display by moving a plane, particularly a mechanical rotary encoder type device. It relates to pointing devices.

[Conventional technology]

Conventionally, this type of device has been configured so that the cursor can be moved on the screen by sliding the ball on a flat surface and depending on the rolling amount and direction of the ball that comes into contact with the encoder.

FIGS. 2(a) and 2(b) are a perspective view and a back view of a conventional pointing device.

In these figures, 11 is a pointing device main body (hereinafter simply referred to as the main body), and is provided with operation buttons 12 and 13. 14 is a cable line, and a connector 15 for connection is provided.

Reference numeral 16 denotes a ball, and as the ball 16 rotates, a sliding encoder roller 17 rotates. A ball holding member 18 rotatably holds the ball 16.

Next, the movement of the cursor will be explained.

Normally, the operator grasps the main body 11 with one hand, lightly places the index finger and middle finger on the operation button 12.13, clicks the operation button 12.13 at an arbitrary position, and then presses the main body 11.
A command and coordinates indicated by a cursor on a display means (not shown) that is moved and displayed in response to the movement of are input.

[Problems that the invention seeks to solve 17] However, it is easy to collect dust and scratches on the iF-style mento (work daple, ma-ntokasa).
As the ball rolls, dust and dirt are drawn in as the vise moves -C](
- There are problems in that the rotation of the encoder roller 17 is hindered and the fine adjustment activity f+ of the cursor is impaired.

This invention was made to eliminate the problem described in -1.
F' to provide a pointing device that can remove dust and scratches from the first part (Part 4.).
L-target.

[-r step to solve the problem]

The pointing device according to the present invention includes a cleaning member for cleaning a foreign object sticking to a ball with an adhesive i]7;
18 = - Dalola is touched (J 7i) and a waste removal section is installed to clean up the waste.

14] In this invention, 1, 1, the cleaning part that contacts the ball is attached to the rotating ball by 4=-1, and the cleaning part 4-Zi is cleaned 1.
2. Turning (the cleaning part that comes into contact with the encoder roller cleans any deposits on the encoder roller).

〔Example〕

FIGS. 1(a) and 1(b) are diagrams explaining the configuration of a pointing device showing an embodiment of the present invention, FIG. 1(a) is a view from the M'A side, and FIG. 1(b) is an enlarged schematic diagram of the encoder roller 17 portion. And FIG. 2(a),
Same as (b), later the same sign is 4=t.

In these figures, reference numeral 1 denotes a cleaning member, which is joined to the ball pressing member 18 so as to be in contact with the ball 16 in the water direction. A cleaning section 2 is joined to the main body 11 so as to be in vertical contact with the encoder roller 17. The Vli cleaning member 1 is made of a material that does not prevent the rotation of the ball 16, and the cleaning member 2 is similarly made of a material that does not prevent the encoder roller 170 from rotating.

Next, the cleaning operation of the pointing device according to the present invention will be explained.

When the ball 16 rotates as the wooden cup 11 moves 14':A, the cleaning member 1 combined with the ball holding member 18 cleans the dust and dirt sticking to the ball 16. According to the rotation of the ball 16, the cleaning member 2 joined to the outer peripheral portion cleans the dust and dirt that collects on the surface of the rotated encoder roller 17.

〔Effect of the invention〕

Below 1. As explained above, this invention has a cleaning member that cleans the deposits that come into contact with the ball and a cleaning member that cleans the deposits that stick to the encoder roller, so special cleaning is not required. Dust and dirt that come into contact with the ball as the pointing device moves can be cleaned without any equipment, and the ball can always be rotated stably, so the cursor can be moved minutely.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are diagrams illustrating the configuration of a pointing device showing an embodiment of the present invention, and FIG. 2(a)
, (b) are a perspective view and a back view of a conventional pointing device. In the figure, 1 and 2 are cleaning members. Figure 1 (a) Figure 2

Claims (1)

[Claims] A pointing device that has a ball that moves on a plane and an encoder roller that rotates as the ball moves, and that moves a cursor in response to the rotation of the encoder roller. A pointing device comprising: a cleaning member that cleans the encoder roller; and a cleaning member that cleans deposits that come into contact with the encoder roller and adhere to the encoder roller.