TWI220359B - Anti-abrasion device and flatbed scanner having the same - Google Patents

Abstract

An anti-abrasion device and a flatbed scanner having the anti-abrasion device are disclosed. The flatbed scanner includes a scanning platform, a circuit board, a flat flexible cable (FFC) and a carriage module. The FFC has one end thereof electrically connected to the circuit board and the other end thereof electrically connected to the carriage module. The FFC can be stretched or bent under the scanning platform with the movement of the carriage module. The anti-abrasion device includes a flexible strip disposed at one side of the FFC capable of stretching or bending under the scanning platform; a plurality of rigid members aligned with one another in parallel and attached onto the flexible strip to constitute a flexible body. The flexible body is uni-directionally flexible and kept separation from the scanning platform by a certain distance for confining the bent degree of the FFC and avoid contamination and damage resulting from abrasion with the scanning platform.

Description

1220359 V. Description of the invention α) ——— The technical field to which the invention belongs The present invention relates to an anti-friction device, especially an anti-friction device applied to a platform scanner. Prior technology A flat flexible cable (FFC) is an electronic device = a commonly used connection cable, which can provide suitable wiring in a small space. In the flatbed scanner, the carriage containing the optical and optoelectronic conversion elements (carriage) that are moved back and forth for scanning is connected to the circuit board by a flexible cable. Please refer to the first diagrams (A) and (B), which are schematic top and side cross-sectional views of a flatbed scanner, respectively. A platform scanner generally includes an upper cover (not shown) and a lower casing 10, and an optical-mechanical module 11, an optical-mechanical module driving mechanism 1 2, and a circuit board 1 are installed in the lower casing. 3. And a flexible cable 14 ° The optical-mechanical module 11 is driven by the motor and gear set 121 of the optical-mechanical module driving mechanism 12 to move along the track 22 and pass under a transparent scanning platform 15 'to oppose Documents or photos on the scanning platform are scanned, and the optical-mechanical module 11 still maintains an electrical connection with the circuit board 丨 3 through a flexible cable 丨 4 when it is moving for signal transmission. = 凊 See the second figure (A) ’This is a schematic diagram of the structure of a traditional flexible cable. ^ The flexible cable 14 is formed by covering a flexible copper foil conductor sheet 41 with a flexible plastic 1 outer edge layer 142 and adding reinforcing sheets at both ends. Both ends of the copper foil 41 are exposed outside the plastic insulating outer layer 142, and

1220359 V. Description of the invention (2)

The strong piece 143 assists in applying force to insert the optical-mechanical module u (as shown in the second figure (B)) and the slot of the circuit board 13 (not shown in the figure). During the movement of the optical-mechanical module 11, the flexible flexible cable 丨 4 will be stretched or bent accordingly. When the flexible cable 14 is bent, it may be connected with the transparent scanning platform J 5 ( : Normally glass) produces friction (as shown in the second figure (B)). Especially for scanners where the thickness of production buckles is becoming thinner and thinner (for example, there are more and more scanners with contact lens image sensors (c0ntact image sens〇r; cis)) Many), the shorter and shorter the distance will make the soft line cat 14 and the glass plate 15 have a greater chance of friction, so the soft line "upper = will be easily stained on the glass by friction ±, # 此 将The content that seriously affects the scanning of the invention is to develop an anti-friction device that improves the above-mentioned conventional means without the main invention of the present invention. In the summary of the invention, an anti-friction device is' applied to-a flatbed scanner-a flexible cable includes-scan The platform,-circuit board, circuit board, and the other-one end of the flexible cable of the machine is electrically connected to the mobile optical module of the optical module, and the flexible cable can be connected with the multiple movements. The bottom of the platform is stretched or bent, and the 1220359 V. Description of the invention (3) The anti-friction device mainly includes: a flexible sheet, which is arranged on one side of the flexible cable, and can follow the optical machine module Move and stretch or bend below the scanning platform; and a plurality of rigid Pieces are attached to the flexible sheet in parallel to form a flexible body, but the flexible body has a flexible property in a single direction and can keep a distance from the scanning platform, thereby limiting the flexibility of the flexible cable. The degree of bending to avoid friction with the scanning platform. According to the above conception, the anti-friction device described in this case, wherein the material of the flexible sheet is made of plastic film.

According to the above conception, the anti-friction device described in this case, wherein the cross-sectional shape of the hard objects is rectangular. According to the above-mentioned concept, in the anti-friction device described in this case, the cross-sectional shape of the hard objects is trapezoidal. According to the above conception, the anti-friction device described in this case, wherein the cross-sectional shape of the hard objects is "L". According to the above concept, the anti-friction device described in this case, wherein the cross-sectional shape of the hard objects is "τ".

Another aspect of the case is a platform scanner, which includes: a scanning platform that provides placement of a scanned object; a circuit board; an optical-mechanical module; a flexible cable that is electrically connected to the circuit board and the The optical-mechanical modules are used to transmit electrical signals. The flexible cable can be extended or bent under the scanning platform as the optical-mechanical modules move; and a plurality of hard objects are arranged in parallel to form a flexible cable. The main body is flexible. The flexible main system is disposed on one side of the flexible cable and has a single-direction flexible characteristic to maintain a distance from the scanning platform, thereby limiting the degree of bending of the flexible cable and avoiding the flexible platform.

1220359 damage. The conception, the object, above which constitutes the conception, the material is composed of the conception, the cross-sectional shape, the cross-sectional shape, the cross-sectional shape, the cross-sectional shape, and the concept. The flexible body is rigid. The flat plastic film described in this case is a rectangle. The system described in this case is trapezoidal. The system described in this case is of the nLn type. The flat plate described in this case is a "T". The flat plate described in this case and at least five, the description of the invention (4) Friction caused by friction contains a replaceable sheet, the flexible body is based on the upper flexible sheet. According to the upper hard objects, the upper hard objects, the upper hard objects, and the upper hard objects are combined with 0 desktop scanners, wherein more packages are attached to the desktop scanners in parallel, and the . Desktop scanners, among them, these desktop scanners, among them desktop scanners, among them desktop scanners, among these desktop scanners, among these holes, cooperate to complete a set of simple schematic illustrations. The following diagrams and details are used to gain a deeper understanding. The first diagram (A) is a general platform, and the second diagram (B) is a schematic diagram of the general platform.

$ 9 pages 1220359 V. Description of the invention (5) The second diagram (A) is a schematic diagram of the structure of a traditional flexible cable. The first figure (B) is a schematic diagram of the structure of a traditional friction cable and the friction between the transparent scanning platform. The third diagram (A) (B) is a schematic diagram of the structure of the anti-friction device developed in this case to improve the lack of conventional means and applied to the platform scanner. The fourth figure (A) (B) (C) (D) (E) (F) (G): It is a schematic cross-sectional view of various embodiments of the flexible body in this case. Fifth Figure (A) (B): It is a schematic side and cross-sectional view of another embodiment of the flexible body in this case. The components included in the drawings in this case are listed below: Scanner lower case 10 Optical machine module drive mechanism 12 Execution road 122 Custom flexible cable 14 Flexible plastic insulation outer layer 142 Transparent scanning platform 1 5 Scanning platform 3 0 Soft Cable 3 2 Flexible body 34 Hard object 41 Pin 511 Optical module 11 Motor and gear set 1 21 Circuit board 13 Flexible copper foil conductor sheet 1 41 Reinforcing sheet 1 4 3 Anti-wear soft cable 34 Circuit board 31 Light Module 3 3-Flexible sheet 4 0 Hard object 51 Hole 51 2

Page 101220359 V. Description of the invention (6) Please refer to the third figure (A) (B) for the implementation of the invention, which is an anti-friction device structure developed in this case and applied to a flatbed scanner to improve the lack of conventional means. schematic diagram. Generally, the platform scanner mainly includes components such as a scanning platform 30 (usually made of transparent glass), a circuit board 31, a flexible cable 32, and an optical-mechanical module 33, and the flexible cable 3 used for transmitting electrical signals. One end of 2 is electrically connected to the board 31 and the other end is electrically connected to the optical-mechanical module 33. The flexible cable 2 can be extended under the scanning platform in cooperation with the movement of the optical-mechanical module 33 or Bend. As for the anti-friction device developed in this case, it mainly includes a flexible body 34, which is arranged on one side of the flexible cable 32 (as shown in the third figure (B), it can be the inside or the outside of the flexible cable 32) ), The same way to the circuit board 31, and the other end is connected to the optical machine module 33. Because the flexible main body 34 disclosed in this case has the characteristic of being flexible in a single direction (in the figure, it can only be curved in the clockwise direction f), so in the first section, the flexible main body 34 presses the flexible cable 32 on it. Next, in the third figure (B), the flexible main body 34 effectively restricts the space for the flexible cable to "upturn one upward." Thus-a 'flexible main body M with a unidirectional flexible characteristic could have been avoided Flip upwards while keeping a distance from the scanning platform 3 () to the movable range of the flexible cable 32, so that it will not cause friction with the scanning platform 30. Gongtian avoids Benjai (F) ⑹, which This is the case where the flexible main body flexible sheet 4 (for example, a plastic film) of the flexible main body is covered with the complex 1220359 attached thereto.

The arrangement of the hard objects 41 is arranged, and the cross-sectional shape of the hard objects 41 can be differently changed as shown in the drawings, and can be rectangular, trapezoidal, " L " type, " T " and other shapes. The combined flexible bodies with similar track structure have strong bending strength, which can avoid lifting upwards and keep a distance from the scanning platform 30. Please refer to the fifth figure (A) (B) again, which It is a side and cross-sectional schematic diagram of another embodiment of the flexible body of the present case, which is mainly composed of a high-quality object 51 and each other ', and the shape of the cross-section of the hard object 51 can also be changed as shown in the fourth figure. However, it does not need to provide a flexible sheet 40, but completes the combination by the cooperation of the pin 511 and the hole 512, but it can also have the flexibility of a single direction. ^ In summary, through the anti-friction device Effective on the degree of flex of the flexible cable This case will effectively avoid the friction between the flexible cable and the glass plate: 'so the lack of customary measures can be completely improved' and thus achieve the main purpose of developing this plastic. However, the flexible main body Of metal or material commonly available and ^ done, it is the case in this invention is obtained by a person skilled in the art applied according to any sorts of modifications Carpenter Si horses, then neither off as desired range appended patent protector.

1220359 Brief description of the drawing =-Figure (A) is a schematic top view of a general platform scanner; Figure is a schematic cross-sectional side view of a general platform scanner; Second Figure (A) is a schematic diagram of the structure of a traditional flexible cable . The structure is a friction between a traditional soft cable and a transparent scanning platform. Application (Ϊ), (Α) (β) is a schematic diagram of the structure of the anti-friction device in a flat sigma scanner developed in this case to improve the lack of conventional means. The fourth figure (A) (B) (C) (D) (E) (F) (G): It is a schematic cross-sectional view of various embodiments in this case. Flexible main: This is a schematic side view of another embodiment of the flexible main in this case.

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Claims (1)

Scope of patent application1. An anti-friction device applied to _pinga. The scanner mainly includes a scanning platform and two 2 scanners. The platform is an optical-mechanical module. One end of the flexible cable is electrically connected. A flexible cable and an end of the board are electrically connected to the optical-mechanical module, the soft f is on the circuit board, and the other is moved and stretched or batched under the scanning platform. It can be included with the optical-mechanical module. : Folding 'and the anti-friction device mainly has a flexible sheet, which is arranged on the flexible row module and extends below the scanning platform, and can be folded in parallel with the optical machine's multiple hard objects; and Akichi I ± _ a 仃 is attached to the flexible sheet to form a flexible body, but the flexible body has a single ancient A1 pullability and can keep away from the scanning platform: the direction of the flexible Special * ^ ^ ^ ^ Α ^ ^ Γ can further limit the bending of the flexible cable and avoid contamination from friction with the scanning platform. Among them, the flexible, the hard, the hard, the hard, and the hard 2. The material of the anti-abrasion and fracturing sheet as described in item 1 of the scope of patent application is made of plastic film. 3 · The anti-friction device as described in item 1 of the patent application. The cross-sectional shape of the object is rectangular. 4. The anti-friction device according to item 1 of the scope of patent application. The cross-sectional shape of the object is trapezoidal. The cross-sectional shape of the anti-friction device as described in item 1 of the scope of the patent application is "L ,,". The cross-sectional shape of the anti-friction device as described in item 1 of the scope of the patent application is, T " crack. 7. A platform scanner, comprising: a V-scan platform that provides a scanned object placement; 1220359 VI. Patent application scope a circuit board; an optical-mechanical module flexible cable 'is electrically connected to the circuit board and the light The flexible cable can be extended or bent under the scanning platform as the optical-mechanical module moves; and a plurality of hard objects are arranged in parallel to form a flexible cable. The main body, the flexible main system is disposed on one side of the flexible cable and has a flexible characteristic in a single direction to maintain a distance from the scanning platform, thereby limiting the degree of bending of the flexible cable and avoiding friction with the scanning platform Defaced. 8. The flatbed scanner as described in item 7 of the scope of patent application, which includes two more: "two two things" which are used for the rigid objects to be attached in parallel to the main body of the dingbu to form the flexible main body. 9. The material of the platform-type sweeping sheet as described in item 8 of the scope of patent application is made of plastic film. σ ^ The quality is the platform-type wiper described in item 7 of item 11, the cross-sectional shape of the hard shell object is rectangular. 11 · As stated in item 7 of the scope of application for a patent, a. The cross-sectional shape of a rigid object is a ladder shape. The profile shape of the mouthpiece is "L". 钿 °° D &σ; The shape of the back is "τ". 1 4.If you apply for a patent, which should be available, which can be, which, which, which, which, etc. Page 15 1220359 VI. Scope of patent application Hard objects are assembled through the cooperation of at least one latch and at least one hole. Page 16