CN1110007C

CN1110007C - Scanner shock absorber

Info

Publication number: CN1110007C
Application number: CN98102818A
Authority: CN
Inventors: 冯尧振
Original assignee: Dateng Electronic Enterprise Co ltd
Current assignee: Dateng Electronic Enterprise Co ltd
Priority date: 1998-07-06
Filing date: 1998-07-06
Publication date: 2003-05-28
Anticipated expiration: 2018-07-06
Also published as: CN1240969A

Abstract

The invention relates to a shock-absorbing device of a scanner, comprising an elastic element capable of adjusting the tension of a transmission belt and a plurality of buffer shock absorbers with shock-absorbing effect, wherein a plurality of holes of a base plate of a fixed seat where a motor is arranged are chiseled on, the buffer shock absorbers are penetrated and closed by utilizing a fixed element, and the elastic element is arranged between the transmission belt of the scanner and a lens box fixing device, thereby not only automatically finely adjusting the tension required by the transmission belt of the scanner, but also omitting the complicated action of adjusting the relevant distance of front and rear gears, and also effectively reducing the vertical and horizontal vibration from the motor, ensuring the stability of a scanning optical path and eliminating the noise of the scanner.

Description

The shock attenuation device of scanner

The present invention relates to a kind of shock attenuation device of scanner, refer to a kind of buffer and flexible member of utilizing especially, but and the required tension force of the driving belt of automatic fine tuning scanner and effectively alleviates the main vibroseis that comes from motor.

The high development of science and technology civilization, the information relevant device of utilization stores or the transmission data, luxuriant one agitation of one-tenth, the expenditure that not only can save paper cost can prevent documentation to be gnawed the crisis of losing and running off by moth again, serves multiple; As for storage work for old file, promptly need utilize the assistance of document scanner, data is scanned unloading in magnetic sheet, do backup and file, the importance of hence one can see that document scanner.But, commercially available document scanner is because the competition on the market, the document scanner of each manufacturer is except difference on price, its scanning resolution (resolution) also is the key factor that can attract the consumer to favor, its resolution is from existing common 300dpi, one the tunnel up promotes, and in the face of the requirement of high-res like this, the sweep stabilization degree of document scanner relatively promptly becomes very important, in other words, the vibration effect that caused of its drive structure itself will about the scanning result that resolution and scanning quality manifested.

Existing scanner, shown in Figure 1A, be arranged with a gear holder 10 and idle pulley holder 40 in the front and back end of scanner, and on gear holder 10, be provided with a gear 15 and motor 20, the relative idle pulley 45 that on idle pulley holder 40, is provided with, and be arranged with a driving belt 50 at

gear

15 and 45 of idle pulleys, cutter is established a hole on the appropriate location of driving belt 50, utilize the effect that plugs together of a belt sheet 53 and lock member 55, driving belt 50 can be crimped on the case for lens stationary installation 85 of case for lens 80, and in be provided with light source, the case for lens 80 of elements such as catoptron and sense side device will utilize the rotary action of 20 driven gears 15 of motor and idle pulley 45, and carry out scanning work along with rotating belt 50 moves back and forth on guide rod 70.But, owing to its gear holder 10 of existing scanner is directly via pad 23 and be installed with element 25 effect and be fixed on the scanner, the vibration of supervening during motor 20 operations, to produce collision with other members of scanner via the transmission of gear holder 10 and driving belt 50, form the inevasible people's noise of disturbing; Moreover; because driving belt 50 must bear the weight of case for lens 80 and move back and forth; get off for a long time and will cause the meshing relation of 45 of driving belt 50 and gear 15 and idle pulleys; and have influence on the scanning quality of scanner; so must shut down the relative position of adjusting gear 15 and idle pulley 45; not only trifling annoying, as also to reduce driving belt 50 relatively serviceable life.

In addition, for solving above-mentioned scanner because of the adjustment problem of gear 15 with idle pulley 45 relative positions, and the improvement of another kind of existing file scanner has appearred, it mainly is to have added a spring in the appropriate location of driving belt, torque spring 27 shown in Figure 1B, can be in good time and adjust the tension force of driving belt 50 automatically, to solve the problem of driving belt 50 precision size degree deficiencies, and this kind structure is owing to the lateral stressed effect with adjustment to driving belt 50, therefore, the indirect driving belt 50 caused vibration problems of improving that also can be more or less.But, because the drive structure vibroseis of scanner is except driving belt 50, its motor 20 caused vibration situations are serious especially, especially motor 20 causes up-down vibration can utilize driving belt 50 and transmit and directly have influence on and be provided with light source in it easily, the case for lens of element such as catoptron and sensing apparatus, stability for the scanning light path influences very dark especially, therefore above-mentioned existing structure-improved is not done the consideration of a complete series to drive structure itself, still can't do basic solution to the document scanner that high-res requires, at most only applicable to the low-res scanner.

Therefore, how to design a kind of shock attenuation device of scanner, not only can under the little situation of cost amplification, effectively alleviate the vibrations source that comes from motor, produce and eliminate the noise of disturbing the people, can increase the required adjustment tension force of driving belt again and eliminate horizontal, the effect in up-down vibration source, to guarantee to scan the stability of total optical path, be not to use for a long time the person eagerly to look forward to and difficulty place that desire row of the present invention solves always, and the inventor produces product research based on engaging in scanner for many years, exploitation and the practical experience of selling, it is the idea of thinking and improveing, poor its people's professional knowledge, through research and design in many ways, special topic is inquired into, and after studying sample and improvement many times, can create a kind of shock attenuation device of scanner eventually.

Fundamental purpose of the present invention is to provide a kind of shock attenuation device of scanner: its flexible member design, can place between driving belt and the case for lens retaining element, when focus that motor produced will be passed to case for lens via driving belt, flexible member can be owing to the relation of its moulding, and except can absorbing the transverse vibration that comes from driving belt, also can absorb the effect of driving belt up-down vibration simultaneously, in other words, the vibration of various directions all can effectively be absorbed, to reach that vibration force is on average disperseed and effectively damping and the function that abates the noise, but and the cost of manufacture that is increased again limit below to a certain degree.

Secondary objective of the present invention is to provide a kind of shock attenuation device of scanner: it places driving belt can be connected driving belt with flexible member between the case for lens stationary installation, and reach the required operation tension force of driving belt, not only can save annoying work such as fine setting gear and idle pulley spacing, also can prolong the serviceable life of driving belt relatively.

Another purpose of the present invention is to provide a kind of shock attenuation device of scanner: its most buffers can place on the holder base plate of gear holder, utilize the buffering and shock-proof effect that itself has, can isolate the focus that motor produces, reach on other member of scanner to prevent it to shake tension force, for some reason the effect that reaches damping and abate the noise.

Purpose of the present invention can reach by following measure:

A kind of shock attenuation device of scanner, it mainly contains: include one and can adjust the flexible member of driving belt tension force and the buffer of most tool damping effects, wherein this flexible member is to place between the driving belt and case for lens stationary installation of scanner, and utilize lock member that the three is fixed, this buffer then is connected with the holder base plate that Yu Yike supports motor and gear holder position, can absorb the vibroseis that comes from motor whereby.

Wherein the appropriate location of this firm banking plate cutter is provided with most the base plate holes that can allow buffer wear to close, this buffer then can be worn respectively and close on the base plate hole, and be installed with element and buffer be fixedly arranged on the shell of scanner via one, and by this to support and to fix this firm banking plate.

Wherein this flexible member is to be a tension force shell fragment, and central authorities have one can be allowed and be installed with element and wear the shell fragment hole that closes, and two ends then are lower than the centre height.

Wherein this flexible member is the smooth outer fringe surface that is fixedly arranged on driving belt, and the centre of flexible member raises up the relative position of this driving belt of drawing, about causing this flexible member and driving belt to absorb to come from good time laterally or vibrations vertically stressed, the smooth reverse side centre of flexible member and driving belt then can set firmly this case for lens stationary installation, to drive case for lens with driving belt and flexible member displacement.

Wherein this flexible member is to be a double faced adhesive tape.

Wherein this flexible member is to be a spring.

Wherein this buffer is for a tool air bag hole runs through the right cylinder of main body, and is equipped with at least one buffer air bag to outer lug on cylindrical appropriate location.

The present invention has following advantage compared to existing technology: but the required tension force of the driving belt of automatic fine tuning scanner, and effectively alleviate the main vibroseis that comes from motor, and can guarantee to scan the stability of light path and eliminate the scanner noise.

For being had, structure of the present invention, feature and the effect reached further understand and understanding, only with preferable enforcement legend and describe in detail as the back:

[illustrating]

Figure 1A. be the organigram of existing scanner;

Figure 1B. be the organigram of second kind of existing scanner;

Fig. 2. be organigram of the present invention;

Fig. 3. be damping device schematic perspective view of the present invention;

Fig. 4. be the schematic perspective view of belt tension shell fragment of the present invention;

Fig. 5. be the schematic perspective view of another embodiment of the present invention;

Fig. 6. be the schematic perspective view of another embodiment of the present invention.

[figure number explanation]

10 ... gear holder 13 ... the holder base plate

15 ... gear 20 ... motor

23 ... pad 25 ... be installed with element

27 ... torque spring 30 ... buffer

33 ... buffer air bag 35 ... the air bag hole

40 ... idle pulley holder 45 ... idle pulley

50 ... driving belt 53 ... the belt compressing tablet

55 ... lock member 60 ... the tension force shell fragment

63 ... double faced adhesive tape 65 ... the shell fragment hole

67 ... spring 70 ... guide rod

80 ... case for lens 85 ... the case for lens stationary installation

Seeing also Fig. 2, is to be organigram of the present invention; As shown in the figure, be arranged with a gear holder 10 and idle pulley holder 40 in the front and back end of scanner, and on gear holder 10, be provided with a gear 15 and motor 20, relatively on idle pulley holder 40, also be provided with an idle pulley 45, and be arranged with a driving belt 50 at

gear

15 and 45 of idle pulleys, cutter is provided with a hole (not shown) on the appropriate location of this driving belt 50, utilize the effect that plugs together of a belt compressing tablet 53 and lock member 55, can be equipped with a flexible member 60 in 85 of the case for lens stationary installations of driving belt 50 and case for lens 80, in this embodiment, this flexible member 60 is to be a tension force shell fragment, these tension force shell fragment 60 central authorities have a shell fragment hole 65 that can allow lock member 55 wear to close, its two ends are then for being lower than the centre height level and being a circular arc type (as shown in Figure 4), the effect that plugs together owing to lock member 55, can be with case for lens stationary installation 85, tension force shell fragment 60 and driving belt 50 threes closely are screwed on together, and because the design of tension force shell fragment 60 itself can allow driving belt 50 present the protruding slightly aspect in the place of screwing togather along with tension force shell fragment 60; So be activated operation and driven gear 15 and idle pulley 45 when relatively rotating at motor 20, in be provided with light source, the case for lens 80 of element such as catoptron and sensing apparatus also will move back and forth on guide rod 70 along with driving belt 50 and carry out scanning work, the huge focus that is produced with time motor 20 is in the moment of desiring to be passed to case for lens 80, tension force shell fragment 60 can absorb focus owing to the relation of its moulding in advance, and about utilizing its two ends to absorb in good time laterally or the vibroseis of all directions such as vertical up and down, it is invisible that focus is disappeared to, and reaches the effect of damping and reduction noise; Moreover, because can being connected driving belt 50, tension force shell fragment 60 screwing togather position projection slightly, can give driving belt 50 and have tension force required when rotating, so can save the people's work of disturbing of adjusting gear 15 and idle pulley 45 relative position relations, also can therefore prolong the life-span that driving belt 50 is manipulated.Certainly, not limiting at its flexible member of the present invention is to be tension force shell fragment 60 forms, as in another embodiment, be with double faced adhesive tape 63 (as shown in Figure 5) or utilize spring 67 (as shown in Figure 6) to place 50 of case for lens stationary installation 85 and driving belts, it is fixing to utilize lock member 55 to plug together again, the same effect that can reach damping.

On the other hand, cutter is provided with most hole (not shown)s on holder base plate 13 appropriate locations of gear holder 10, closed a buffer 30 and wear on each hole, this buffer 30 is the right cylinders that run through main body for a tool air bag hole 35, and on cylindrical appropriate location, be equipped with at least one buffer air bag 33 (as shown in Figure 3) to outer lug, and the situation that the hole upper and lower side that is formed on holder base plate 13 all has buffer air bag 33 to contact with it occurs, utilize again and be installed with element 25 and pad 23 and buffer 30 is seen through holder base plate 13 and be fixed on the scanner, so desire to reach the approach of scanner by the focus that motor 20 produced by gear holder 10, also will be cushioned vibroshock 30 absorbs, and can't reaching on other member of scanner, so the noise that also can eliminate scanner relatively and produced.

In sum, when knowing that the present invention provides a kind of shock attenuation device of scanner, but the required tension force of the driving belt of automatic fine tuning scanner not only, and effectively reduce come from motor about laterally and vertical up and down main vibroseis, and the degree of stability of total optical path and effectively eliminate the scanner noise when guaranteeing to scan.So the present invention one is rich in the innovation and creation of novelty, creativeness and practicality, meets the condition of patented claim, so propose application for a patent for invention in accordance with the law.

Only the above only is a preferred embodiment of the present invention, is not to be used for limiting scope of the invention process.All equivalences of doing according to technical scheme of the present invention are replaced, and all should think to be included in the technical scheme of the present invention.

Claims

1. A shock-absorbing device for a scanner, which is provided with a plurality of buffer shock absorbers with a shock-absorbing effect, and is characterized in that: it includes an elastic element that can adjust the tension of the transmission belt, wherein the elastic element is placed on the scanner Between the transmission belt and the lens box fixing device, the three are fixed by locking elements, and the shock absorber that can absorb the vibration from the motor is connected to a fixing base that can support the position of the motor and gear fixing base .

2. A shock-absorbing device for a scanner as claimed in claim 1, wherein the fixed base plate is drilled with a plurality of holes in the bottom plate for the buffer shock absorber to pass through at an appropriate position, and the buffer The shock absorbers can respectively pass through the holes of the bottom plate, and the buffer shock absorbers are fixed on the shell of the scanner through a fixing element, so as to support and fix the bottom plate of the fixing base.

3. A shock-absorbing device for a scanner as claimed in claim 1, wherein the elastic element is a tension elastic piece with a hole in the elastic piece that allows the fixed element to pass through, and the two ends are low At the height of the center.

4. A shock-absorbing device for a scanner as claimed in claim 3, wherein the elastic element is flatly attached to the outer surface of the transmission belt, and the center of the elastic element will pull the transmission belt. At the relative position of the belt, an upward bulge is formed so that the elastic element and the transmission belt can timely absorb the force from left, right, horizontal or vertical up and down vibrations, and the center of the opposite side where the elastic element and the transmission belt are flatly attached can be fixed to drive the belt. A fixing device for the displacement of the lens case with the transmission belt and the elastic element.

5. The shock absorbing device of a scanner as claimed in claim 1, wherein the elastic element is a double-sided adhesive tape.

6. The damping device for a scanner as claimed in claim 1, wherein the elastic element is a spring.

7. A shock absorbing device for a scanner as claimed in claim 1, wherein the shock absorber is a cylinder with an airbag hole penetrating through the main body, and a ring is set at an appropriate position of the cylinder. There is at least one outwardly protruding cushioning air bag.