CN105546290A - Improved display device - Google Patents
Improved display device Download PDFInfo
- Publication number
- CN105546290A CN105546290A CN201610068142.0A CN201610068142A CN105546290A CN 105546290 A CN105546290 A CN 105546290A CN 201610068142 A CN201610068142 A CN 201610068142A CN 105546290 A CN105546290 A CN 105546290A
- Authority
- CN
- China
- Prior art keywords
- projection portion
- screw thread
- carrier block
- sensor
- bearing means
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
Abstract
An improved display device comprises a base (8) and a display screen part (9) capable of pivoting by a certain angle relative to the base (8). The base (8) comprises a left protruding block part (82), a right protruding block part (81) and a concave part for a middle protruding block part (93) of the display screen part (9) to stretch therein, and the concave part is located between the left protruding block part (82) and the right protruding block part (81). The left protruding block part (82) and the right protruding block part (81) are symmetric in structure. Each of the left protruding block part (82) and the right protruding block part (81) is internally provided with three continuously-arranged bearing devices (31, 32 and 33) different in rotating torque. The middle protruding block part (93) is internally provided with a middle fixedly-arranged gear (2) driving a combining cavity (20) to contain a screw, and the screw is provided with a left threaded rod (21) and a right threaded rod (210) opposite in screwing direction.
Description
Technical field
The present invention relates to display device installing area, especially a kind of follow-on display equipment.
Background technique
Display device is widely used in computer installation and other image display application fields.
The installation of display equipment adopts form display screen being installed on pedestal usually.And display screen has a significant impact for the usability tool of display device relative to the setting of the moment of rotation of pedestal.For some applications, need larger moment of rotation (namely tightly hinged); And in some other occasions, need less moment of rotation (namely pine is hinged).The tightly hinged angular positioning that may be used for display device; And pine hingedly may be used for the angle regulating display device swimmingly.And this is for the linkage set in manufacturing process at present, is difficult to the adjustment carrying out this moment of rotation, is thus also difficult to the requirement of the hinge moment of satisfied different occasion.
Summary of the invention
The object of the present invention is to provide a kind of follow-on display equipment, it can overcome defect of the prior art.
According to the display equipment of a modification of the present invention type, comprise pedestal and can relatively described pedestal and the display screen part of pivotable several angle, described pedestal comprises left projection portion, the depressed part that the middle projection portion of right projection portion and the confession described display screen part between described left projection portion and right projection portion stretches into, described left projection portion and right projection portion symmetrical configuration and each in be separately installed with the bearing means that three of arranging continuously have different moment of rotation, be provided with in described middle projection portion and drive joint chamber to set firmly gear in order to hold the centre with the screw rod of the contrary left hand thread bar of rotation direction and right-hand thread bar, described left hand thread bar and right-hand thread bar are fixedly connected on left side and the right side that described centre sets firmly gear respectively, described centre sets firmly gear in order to engage with by motor-driven actuation gear, described outer surface of motor is coated with radiating fin, the heat absorption produced when described radiating fin is in order to run described motor also dissipates, when preventing described motor long-play, temperature is too high and burn, described left hand thread bar and right-hand thread bar respectively in order to drive in described left projection portion and right projection portion bearing device can screw thread carrier block in axial sliding, described left hand thread bar sets firmly gear three of extending through in described left projection portion left to be had the left frame in the endoporus of the bearing means of different moment of rotation and the left side being fixedly connected on described display screen part that arrives from described centre and is rotatably carried on this, also be fixedly installed guide rod between described left frame to described middle projection portion to lead in order to pass corresponding screw thread carrier block thus to move left and right it, described right-hand thread bar sets firmly gear three of extending through in described right projection portion to the right to be had the right frame on the bearing means of different moment of rotation and the right side being fixedly connected on described display screen part that arrives from described centre and is rotatably carried on this, is also fixedly installed guide rod in order to move left and right it lead through corresponding screw thread carrier block between described right frame to described middle projection portion, the each of described bearing means includes inner ring and outer ring, and the inner side of described inner ring is provided with and engages lining in order to engage with the friction teeth on the outer peripheral surface of screw thread carrier block thus the inner ring of the bearing means making described screw thread carrier block engage with it is fixed on rotating, thus, when described centre sets firmly left hand thread bar described in gear drive and the running of right-hand thread bar, screw thread carrier block in described left projection portion and right projection portion can in opposite directions or from mobile optionally to engage from three bearing meanss had in the bearing means of different moment of rotation of corresponding person in described left projection portion and right projection portion, thus regulate described pedestal relative to the moment of rotation of described display screen part, wherein, all elastic washer is folded with between each one three bearing meanss with different moment of rotation in described left projection portion and right projection portion, the shape of cross section of the inner circumference side of each described elastic washer is circular arc, the left and right two end faces of each described screw thread carrier block is provided with chamfering inclined-plane, when described screw thread carrier block moves across described elastic washer, by the described inner circumference engage sides of described chamfering inclined-plane and circular arc, described screw thread carrier block realizes the transition between different bearing meanss, the first tutorial light is provided with to the right successively on the left of described display screen part front-end face, second tutorial light and the 3rd tutorial light, guide rod in described bearing means is provided with first sensor, guide rod in described bearing means is provided with the second sensor, guide rod in described bearing means is provided with the 3rd sensor, the neutral position that described screw thread carrier block is connected with described guide rod is provided with four-sensor, described four-sensor is embedded in described screw thread carrier block, after described four-sensor connects with described first sensor, send signal and control described first tutorial light and light, after described four-sensor connects with described second sensor, send signal and control described second tutorial light and light, after described four-sensor connects with described 3rd sensor, send signal and control described 3rd tutorial light and light.
In the present invention, be articulated and connected owing to being provided with two groups structurally symmetrical, left and right, therefore, it is possible to ensure reliability and the balance of the connection of pedestal and display screen part.And often group all arranges the bearing means that three have different moment of rotation in being articulated and connected, by engaging carrying one of them from the bearing means of these three different moment of rotation of threaded block, thus corresponding moment of rotation can be selected, complete the adjustment for moment of rotation thus.By arranging guide rod, the installation load-carrying properties for screw thread carrier block can be strengthened, and for the interference in the circumferential of screw thread carrier block when pedestal and display screen part can be avoided to be pivoted relative to each other, namely fixing in circumference is carried out to described screw thread carrier block.And be fixed on described display screen part by arranging and protrude into the cylindrical protrusion in described pedestal, extra support can be provided, strengthen the reliability connected, such as, protect the mechanical property of inner moment regulating device when being subject to external impact.By arranging the tooth-shape structure being circumferentially positioned at screw thread carrier block, can ensure that the rotation of the inner ring of described screw thread carrier block and described bearing means is fixed, and described screw thread carrier block can be convenient to slide in the axial direction relative to described bearing means, thus complete the selection for moment.
By arranging the elastic washer be folded between each bearing means, the inner circumference side of its circular arc coordinates with the chamfer of screw thread carrier block, can be convenient to screw thread carrier block and move between the bearing means that each are different, realize smooth and easy transition.Whole apparatus structure is reliable and stable, and can effectively realize for the selection of pedestal relative to the moment of rotation of display screen part.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the adjustable notebook computer device of moment of rotation of the present invention.
Fig. 2 illustrates the close-up schematic view of the left part in Fig. 1.
Fig. 3 illustrates the end of screw thread carrier block in Fig. 2 and the detailed schematic of elastic washer.
Fig. 4 is the cross-sectional structure schematic diagram of bearing means.
Fig. 5 is the cross-sectional structure schematic diagram of screw thread carrier block.
Embodiment
Below in conjunction with Fig. 1-5, the present invention is described in detail.
According to the follow-on display equipment of the one of embodiment, comprise pedestal 8 and can relatively described pedestal 8 and the display screen part 9 of pivotable several angle, described pedestal 8 comprises left projection portion 82, the depressed part that the middle projection portion 93 of right projection portion 81 and the confession described display screen part 9 between described left projection portion 82 and right projection portion 81 stretches into, described left projection portion 82 and right projection portion 81 symmetrical configuration and each in be separately installed with the bearing means 31 that three of arranging continuously have different moment of rotation, 32, 33, be provided with in described middle projection portion 93 and drive joint chamber 20 to set firmly gear 20 in order to hold the centre with the screw rod of the contrary left hand thread bar 21 of rotation direction and right-hand thread bar 210, described left hand thread bar 21 and right-hand thread bar 210 are fixedly connected on left side and the right side that described centre sets firmly gear 20 respectively, described centre sets firmly gear 20 in order to engage with by motor-driven actuation gear, described outer surface of motor is coated with radiating fin 108, the heat absorption produced when described radiating fin 108 is in order to run described motor also dissipates, when preventing described motor long-play, temperature is too high and burn, described left hand thread bar 21 and right-hand thread bar 210 respectively in order to drive in described left projection portion 82 and right projection portion 81 bearing device can screw thread carrier block 211 in axial sliding, described left hand thread bar 21 sets firmly the bearing means 31 that gear 2 three of extending through described left projection portion 82 have different moment of rotation left from described centre, 32, the endoporus of 33 and the left frame 92 at the left side place being fixedly connected on described display screen part 9 that arrives also rotatably are carried on this, also be fixedly installed guide rod 98 between described left frame 92 to described middle projection portion 93 to lead in order to pass corresponding screw thread carrier block 211 thus to move left and right it, described right-hand thread bar 210 sets firmly gear 2 three of extending through in described right projection portion 81 to the right to be had the right frame 91 on the bearing means of different moment of rotation and the right side being fixedly connected on described display screen part 9 that arrives from described centre and is rotatably carried on this, is also fixedly installed guide rod in order to move left and right it lead through corresponding screw thread carrier block between described right frame 91 to described middle projection portion 93, the each of described bearing means includes inner ring 322 and outer ring 311, and the inner side of described inner ring 322 is provided with and engages lining 321 in order to engage with the friction teeth 41 on the outer peripheral surface of screw thread carrier block thus the inner ring of the bearing means making described screw thread carrier block engage with it is fixed on rotating, thus, when described centre set firmly gear 2 drive described left hand thread bar 21 and right-hand thread bar 210 to operate time, screw thread carrier block 211 in described left projection portion 82 and right projection portion 81 can in opposite directions or from mobile optionally to engage from three bearing meanss had in the bearing means 31,32,33 of different moment of rotation of corresponding person in described left projection portion 82 and right projection portion 81, thus regulate described pedestal 8 relative to the moment of rotation of described display screen part 9, wherein, in described left projection portion 82 and right projection portion 81, each one three have the bearing means 31 of different moment of rotation, 32, elastic washer 2102 is all folded with between 33, the shape of cross section of the inner circumference side of each described elastic washer 2102 is circular arc, the left and right two end faces of each described screw thread carrier block 211 is provided with chamfering inclined-plane 2101, when described screw thread carrier block 211 moves across described elastic washer 2102, described inner circumference engage sides by described chamfering inclined-plane 2101 with circular arc, described screw thread carrier block 211 realizes the transition between different bearing meanss, the first tutorial light 105 is provided with successively to the right on the left of described display screen part 9 front-end face, second tutorial light 106 and the 3rd tutorial light 107, guide rod 98 in described bearing means 31 is provided with first sensor 102, guide rod 98 in described bearing means 32 is provided with the second sensor 103, guide rod 98 in described bearing means 33 is provided with the 3rd sensor 104, the neutral position that described screw thread carrier block 211 is connected with described guide rod 98 is provided with four-sensor 101, described four-sensor 101 is embedded in described screw thread carrier block 211, after described four-sensor 101 connects with described first sensor 102, send signal and control described first tutorial light 105 and light, after described four-sensor 101 connects with described second sensor 103, send signal and control described second tutorial light 106 and light, after described four-sensor 101 connects with described 3rd sensor 104, send signal and control described 3rd tutorial light 107 and light.
Valuably, wherein, the left surface in described left frame 92 and described middle projection portion 93 is provided with the carrying cylinder stretched in described left projection portion 82 and protrudes 991,992; The right flank in described right frame 91 and described middle projection portion 93 is provided with the carrying cylinder stretched in described right projection portion 81 to protrude.
Valuably, wherein, the teeth groove mated with described friction teeth 41 is provided with in described joint lining 321.
Valuably, wherein, described joint lining 321 is elastic material.
Be articulated and connected owing to being provided with two groups structurally symmetrical, left and right, therefore, it is possible to ensure reliability and the balance of the connection of pedestal and display screen part.And often group all arranges the bearing means that three have different moment of rotation in being articulated and connected, by engaging carrying one of them from the bearing means of these three different moment of rotation of threaded block, thus corresponding moment of rotation can be selected, complete the adjustment for moment of rotation thus.By arranging guide rod, the installation load-carrying properties for screw thread carrier block can be strengthened, and for the interference in the circumferential of screw thread carrier block when pedestal and display screen part can be avoided to be pivoted relative to each other, namely fixing in circumference is carried out to described screw thread carrier block.And be fixed on described display screen part by arranging and protrude into the cylindrical protrusion in described pedestal, extra support can be provided, strengthen the reliability connected, such as, protect the mechanical property of inner moment regulating device when being subject to external impact.By arranging the tooth-shape structure being circumferentially positioned at screw thread carrier block, can ensure that the rotation of the inner ring of described screw thread carrier block and described bearing means is fixed, and described screw thread carrier block can be convenient to slide in the axial direction relative to described bearing means, thus complete the selection for moment.
By arranging the elastic washer be folded between each bearing means, the inner circumference side of its circular arc coordinates with the chamfer of screw thread carrier block, can be convenient to screw thread carrier block and move between the bearing means that each are different, realize smooth and easy transition.
By with upper type, those skilled in the art can make various change according to mode of operation within the scope of the invention.
Claims (4)
1. a follow-on display equipment, comprise pedestal (8) and can relatively described pedestal (8) and the display screen part (9) of pivotable several angle, described pedestal (8) comprises left projection portion (82), the depressed part that right projection portion (81) and the middle projection portion (93) being positioned at the described display screen part (9) of confession between described left projection portion (82) and right projection portion (81) are stretched into, described left projection portion (82) and right projection portion (81) symmetrical configuration and each in be separately installed with the bearing means (31 that three of arranging continuously have different moment of rotation, 32,33), be provided with in described middle projection portion (93) and drive joint chamber (20) to set firmly gear (20) in order to hold the centre with the screw rod of the contrary left hand thread bar (21) of rotation direction and right-hand thread bar (210), described left hand thread bar (21) and right-hand thread bar (210) are fixedly connected on left side and the right side that described centre sets firmly gear (20) respectively, described centre sets firmly gear (20) in order to engage with by motor-driven actuation gear, described outer surface of motor is coated with radiating fin (108), the heat absorption produced when described radiating fin (108) is in order to run described motor also dissipates, when preventing described motor long-play, temperature is too high and burn, described left hand thread bar (21) and right-hand thread bar (210) respectively in order to drive in described left projection portion (82) and right projection portion (81) bearing device can screw thread carrier block (211) in axial sliding, described left hand thread bar (21) sets firmly the bearing means (31 that gear (2) three of extending through described left projection portion (82) have different moment of rotation left from described centre, 32,33) endoporus and the left frame (92) at the left side place being fixedly connected on described display screen part (9) that arrives also rotatably are carried on this, also be fixedly installed guide rod (98) between described left frame (92) and described middle projection portion (93) to lead in order to pass corresponding screw thread carrier block (211) thus to move left and right it, described right-hand thread bar (210) sets firmly gear (2) three of extending through in described right projection portion (81) to the right to be had the bearing means of different moment of rotation and the right frame (91) on the right side being fixedly connected on described display screen part (9) that arrives from described centre and is rotatably carried on this, is also fixedly installed guide rod in order to move left and right it lead through corresponding screw thread carrier block between described right frame (91) and described middle projection portion (93), the each of described bearing means includes inner ring (322) and outer ring (311), and the inner side of described inner ring (322) is provided with and engages lining (321) in order to engage with the friction teeth (41) on the outer peripheral surface of screw thread carrier block thus the inner ring of the bearing means making described screw thread carrier block engage with it is fixed on rotating, thus, when described centre set firmly gear (2) drive described left hand thread bar (21) and right-hand thread bar (210) running time, screw thread carrier block (211) in described left projection portion (82) and right projection portion (81) can in opposite directions or from mobile optionally to engage from three bearing meanss had in the bearing means (31,32,33) of different moment of rotation of corresponding person in described left projection portion (82) and right projection portion (81), thus regulate described pedestal (8) relative to the moment of rotation of described display screen part (9), wherein, in described left projection portion (82) and right projection portion (81), each one three have the bearing means (31 of different moment of rotation, 32, 33) elastic washer (2102) is all folded with between, the shape of cross section of the inner circumference side of each described elastic washer (2102) is circular arc, the left and right two end faces of each described screw thread carrier block (211) is provided with chamfering inclined-plane (2101), when described screw thread carrier block (211) moves across described elastic washer (2102), by the described inner circumference engage sides of described chamfering inclined-plane (2101) and circular arc, described screw thread carrier block (211) realizes the transition between different bearing meanss, the first tutorial light (105) is provided with successively to the right on the left of described display screen part (9) front-end face, second tutorial light (106) and the 3rd tutorial light (107), guide rod (98) in described bearing means (31) is provided with first sensor (102), guide rod (98) in described bearing means (32) is provided with the second sensor (103), guide rod (98) in described bearing means (33) is provided with the 3rd sensor (104), the neutral position that described screw thread carrier block (211) is connected with described guide rod (98) is provided with four-sensor (101), described four-sensor (101) is embedded in described screw thread carrier block (211), after described four-sensor (101) connects with described first sensor (102), send signal and control described first tutorial light (105) and light, after described four-sensor (101) connects with described second sensor (103), send signal and control described second tutorial light (106) and light, after described four-sensor (101) connects with described 3rd sensor (104), send signal and control described 3rd tutorial light (107) and light.
2. a kind of follow-on display equipment as claimed in claim 1, wherein, the left surface of described left frame (92) and described middle projection portion (93) is provided with the carrying cylinder stretched in described left projection portion (82) and protrudes (991,992); The right flank of described right frame (91) and described middle projection portion (93) is provided with the carrying cylinder stretched in described right projection portion (81) to protrude.
3. a kind of follow-on display equipment as claimed in claim 1, wherein, is provided with the teeth groove mated with described friction teeth (41) in described joint lining (321).
4. the follow-on display equipment of one as described in claim 1 or 2 or 3, wherein, described joint lining (321) is elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610068142.0A CN105546290A (en) | 2016-02-01 | 2016-02-01 | Improved display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610068142.0A CN105546290A (en) | 2016-02-01 | 2016-02-01 | Improved display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546290A true CN105546290A (en) | 2016-05-04 |
Family
ID=55825693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610068142.0A Pending CN105546290A (en) | 2016-02-01 | 2016-02-01 | Improved display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859836A (en) * | 2017-10-26 | 2018-03-30 | 四川嘉义雷科电子技术有限公司 | Radar ranging equipment is adjusted beneficial to rotation |
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| CN203963417U (en) * | 2014-06-25 | 2014-11-26 | 盐城工学院 | The adjusting torque turning gear that a kind of display device is used |
| US20150121654A1 (en) * | 2013-11-04 | 2015-05-07 | Southco, Inc. | Variable friction hinge |
| CN104977988A (en) * | 2014-04-07 | 2015-10-14 | 苹果公司 | Variable Friction Clutch For A Portable Computer |
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| US20060225248A1 (en) * | 2005-04-11 | 2006-10-12 | Takigen Manufacturing Co., Ltd. | Torque adjusting type hinge |
| CN101311563A (en) * | 2007-05-25 | 2008-11-26 | 佛山市顺德区顺达电脑厂有限公司 | Pivotal device with rotating friction adjustable |
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| US20150121654A1 (en) * | 2013-11-04 | 2015-05-07 | Southco, Inc. | Variable friction hinge |
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| CN107859836A (en) * | 2017-10-26 | 2018-03-30 | 四川嘉义雷科电子技术有限公司 | Radar ranging equipment is adjusted beneficial to rotation |
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Application publication date: 20160504 |
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