CN201017288Y - Laser trackball - Google Patents
Laser trackball Download PDFInfo
- Publication number
- CN201017288Y CN201017288Y CNU2006200163300U CN200620016330U CN201017288Y CN 201017288 Y CN201017288 Y CN 201017288Y CN U2006200163300 U CNU2006200163300 U CN U2006200163300U CN 200620016330 U CN200620016330 U CN 200620016330U CN 201017288 Y CN201017288 Y CN 201017288Y
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- China
- Prior art keywords
- ball
- laser
- waterproof
- trace ball
- silica gel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A laser track ball is provided, which is characterized in: a rolling ball is arranged on a base with three pivots, and a laser sensor is mounted below the base to detect movement of the ball. Since the light source used for detection is a laser, the sensor can judge the direction of rotation of the ball correctly even through the ball has a smooth surface. A dust removing ring and a waterproof ring are mounted on the track ball, and the waterproof ring has a V-shaped cross-section and is made of aging resistant silicone rubber; therefore, the waterproof and dustproof performance of the track ball can be ensured for long, without causing increased rolling resistance on the ball.
Description
Affiliated technical field
The present invention relates to the trace ball used on a kind of computing machine, more precisely, relating to a kind of is that roller ball is the trace ball of detecting element with laser induced device with steel ball or baton round.
Background technology
The trace ball of using on the active computer mainly contains photoelectronic trace ball and mechanical track ball two big classes.Wherein the photoelectronic trace ball has advantage simple in structure and that resolution is high, but because the photoelectronic trace ball is to utilize the light beam of LED to detect the rolling of spheroid, and the light beam of LED is dispersed, therefore when spherome surface is shiny surface, the optoelectronic induction device just can't correctly detect the motion of spheroid, that is trace ball can't operate as normal.Mechanical track ball can adapt to the roller ball of any surface flatness, but has the low and baroque problem of resolution.This two classes trace ball all has the device of waterproof and dustproof, but wherein foamed cotton ring easily lost efficacy when using for a long time, caused trace ball to lose the effect of waterproof and dustproof.
Summary of the invention
The purpose of this invention is to provide a kind of both had simple in structure, not influenced by the spherome surface smoothness and the high advantage of resolution, the trace ball of waterproof and dustproof for a long time again.
The present invention realizes its purpose by following method: roller ball is seated on the base of three fulcrums, at these three fulcrum places bearing is housed, spheroid contacts with bearing.Laser induced device is housed to detect the rolling of spheroid below base.Between trace ball upper cover plate and roller ball, be close to roller ball a dedusting ring is housed, V-type silica gel circle is housed at upper cover plate and dedusting interannular.
Laser trace ball of the present invention owing at three fulcrum places of base bearing is housed, therefore can guarantee the smooth and easy rolling of roller ball.The used laser of laser induced device emission light beam is a kind of people having the same aspiration and interest light source, can directly reflect the details of body surface, even when therefore spherome surface is smooth, and the rotating direction that sensing device also can the right judgement spheroid.Because silica gel circle material therefor is silicon rubber, and silicon rubber to have the xsect of good ageing resistance and silica gel circle be V-type, therefore under the situation that does not increase the balls tumble resistance, can guarantee the waterproof and dustproof performance of trace ball for a long time.
Description of drawings
To be illustrated in conjunction with the accompanying drawings by preferred embodiment below, wherein:
Fig. 1 represents the stereographic map of laser trace ball of the present invention;
Fig. 2 is the centering cut-open view of Fig. 1;
Fig. 3 is the structural drawing of waterproof and dustproof V-type silica gel circle.
Embodiment
With reference to accompanying drawing, will be described in detail specific embodiments of the present invention.
In Fig. 1,2, this laser trace bag is drawn together roller ball 1, upper cover plate 2, base 3, waterproof and dustproof V-type silica gel circle 4, dedusting ring 5, bearing 6, with base 3 be the fulcrum 7 of one, locating rack 8 sends the light source 9 of laser, laser pickoff 10, pcb board 11.Its centre bearer 6 is contained on the fulcrum 7, and roller ball 1 is sitting on the bearing 6, can guarantee roller ball 1 smooth and easy rolling like this.The dedusting ring 5 of having pasted waterproof and dustproof V-type silica gel circle 4 is enclosed within on the roller ball 1, upper cover plate 2 is fixed together with base 3 and is pressed on the waterproof and dustproof V-type silica gel circle 4, can prevent that like this sealing and dust enter trace ball inside from the gap location of dedusting ring 5 and roller ball 1 contact position and upper cover plate 2 and dedusting ring 5.Locating rack 8 is used for fixing light source 9, and light source 9 and laser pickoff 10 are welded on the below of forming laser induced device on the pcb board 11 and being installed in base 3, is used to detect the rotating direction and the angle of roller ball 1.Below just constituted the laser trace ball of a waterproof and dustproof.
In Fig. 3, the xsect of silica gel circle 4 is a V-type, and the silica gel circle has certain pliability and closely contacts with upper cover plate 2 and dedusting ring 5 to guarantee the silica gel circle like this, reaches the waterproof and dustproof effect and dedusting ring 5 can not pressed too tightly again and the rolling that influences roller ball.
Claims (5)
1. a laser trace ball contains roller ball (1), upper cover plate (2), base (3), light source (9), laser pickoff (10), it is characterized in that the light that light source (9) sends is laser.
2. laser trace ball as claimed in claim 1 is characterized in that being with dedusting ring (5) on roller ball (1).
3. laser trace ball as claimed in claim 2 is characterized in that between dedusting ring (5) and upper cover plate (2) silica gel circle (4) being arranged.
4. laser trace ball as claimed in claim 3, the xsect that it is characterized in that silica gel circle (4) is a V-type.
5. laser trace ball as claimed in claim 4, the material that it is characterized in that silica gel circle (4) is rubber or silicon rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2006200163300U CN201017288Y (en) | 2006-12-07 | 2006-12-07 | Laser trackball |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2006200163300U CN201017288Y (en) | 2006-12-07 | 2006-12-07 | Laser trackball |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201017288Y true CN201017288Y (en) | 2008-02-06 |
Family
ID=39057785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2006200163300U Expired - Fee Related CN201017288Y (en) | 2006-12-07 | 2006-12-07 | Laser trackball |
Country Status (1)
Country | Link |
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CN (1) | CN201017288Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102221912A (en) * | 2011-07-05 | 2011-10-19 | 深圳市科羽科技发展有限公司 | Track ball device and bottom support structure thereof |
CN103425273A (en) * | 2012-05-16 | 2013-12-04 | 深圳市巨烽显示科技有限公司 | Trackball device |
-
2006
- 2006-12-07 CN CNU2006200163300U patent/CN201017288Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102221912A (en) * | 2011-07-05 | 2011-10-19 | 深圳市科羽科技发展有限公司 | Track ball device and bottom support structure thereof |
CN103425273A (en) * | 2012-05-16 | 2013-12-04 | 深圳市巨烽显示科技有限公司 | Trackball device |
CN103425273B (en) * | 2012-05-16 | 2016-04-27 | 深圳市巨烽显示科技有限公司 | A kind of Trackball device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20121207 |