CN101031045B - Flat plate display apparatus - Google Patents
Flat plate display apparatus Download PDFInfo
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- CN101031045B CN101031045B CN2007100073676A CN200710007367A CN101031045B CN 101031045 B CN101031045 B CN 101031045B CN 2007100073676 A CN2007100073676 A CN 2007100073676A CN 200710007367 A CN200710007367 A CN 200710007367A CN 101031045 B CN101031045 B CN 101031045B
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Abstract
A position adjusting mechanism, a rotation-axle bearing mechanism, and a rotation-speed reduction mechanism for a flat display apparatus. The rotation-speed reduction mechanism comprises a position adjusting mechanism that includes one or more means for securely attaching a stand and a main body unit of the apparatus to one another, and a position adjusting means for adjusting the mounting position of the stand and main body unit. The rotation-axle bearing mechanism comprises a radial bearing and a thrust bearing for supporting a rotation axle between a display screen unit and the stand. The rotation-speed reduction mechanism reduces the speed of rotation between the display screen unit and the stand upon application of a rotation load exceeding a certain level.
Description
The application is to be September 12, application number in 2003 the dividing an application for the application for a patent for invention of " flat-panel monitor " that be 03824585.X, denomination of invention the applying date.
Technical field
The present invention relates to a kind of rotation regulating mechanism that is applicable to vertical type flat-panel display, relate in particular to a kind of position adjustment structure that is applicable to the display screen unit of rotary vertical flat-panel monitor, wherein vertical type flat-panel display has been equipped the structure of single-shaft variant rotation and can have been kept the horizontal level of display screen unit simultaneously.
The invention still further relates to a kind of vertical rotating structure that is applicable to flat-panel monitor, relate in particular to a kind of bearing arrangement that allows the rotating shaft that flat-panel monitor rotates on the installation site that is applicable to, this structure makes that the central part of body weight of flat-panel monitor can be on the central shaft corresponding to support.
The invention still further relates to a kind of support rotational structure that is applicable to flat-panel monitor, relate in particular to and in rotational structure, reduce rotary speed and reduce (perhaps torque limiter) structure, this structure is applicable to and reduces electric rotating machine or other input rotary speed and provide output to transmission device or other device subsequently, and also is applicable to the anti-undue rotary load of locking apparatus.
Background technology
In recent years, configuration comprises that the vertical type flat-panel display of LCD (LCD), plasma scope or EL (electroluminescence) display and so on display screen has become more and more universal.Especially, increased dispose 30 inches or more the large scale vertical flat plate of large display screen size show the demand of shape.Developed multiple this series products that is applicable to family expenses or commercial purpose.
In these vertical type flat-panel displays, display screen unit comprises LCD, plasma or EL display, and main unit comprises amplifier unit, power subsystem, drive circuit and other device.Display screen unit and main unit generally all have a support supporting, and this support comprises horizontally extending leg, make display screen unit with respect to the ground vertical support.This support also comprises a rotational structure, can any rotatable mode axial support by this main structure body unit.
Fig. 1 has shown the enlarged diagram of a routine above-mentioned vertical display example.Flat-panel monitor 100 is console mode flat-panel monitors, and he comprises 110, one main unit 120 of a display screen unit and a support 130.Term " console mode " is meant that main unit 120 is made up of a control unit 121 that comprises power supply, drive circuit and control circuit and amplifying unit 122, and the class flat-panel monitor that main unit 120 and display screen unit 110 are integrated.
(1) as the example that is applicable to a routine rotational structure of above-mentioned vertical type flat-panel display, Japanese patent laid-open publication gazette No.08-331485 (1996) has disclosed a kind of rotational structure that is applicable to television set.In this rotational structure, the cylinder 7 of slip is arranged on each limit end of television set main unit bottom, is used to support its weight and allows its rolling.Slip cylinder 7 is used on the upper surface of TV bracket 13 and rolls, thereby allows the television set main unit to rotate.
Yet, the very difficult rotational structure that this television set rotational structure is applied to vertical type flat-panel display.This is because in said structure, and television set main unit and the cylinder that is used to slide need the certain width and the degree of depth in television set main unit and TV bracket.In addition, it produces certain clearance between television set main unit and TV bracket, and therefore exposes the inside of TV bracket along with the rotation of television set main unit.
(2) with reference to figure 1, display screen unit 110 comprises display screen 111, for example, and LCD, plasma or EL display.Main unit 120 comprises control unit 121 and amplifying unit 122.Main unit 120 integrates and by support 130 axial support with display screen unit 110.Support 130 comprises bracket leg dagger 131 and stand base 132.Bracket leg dagger 131 has a rotational structure, and main unit 120 can any rotatable mode support by this rotational structure.
As the conventional example of this rotational structure of example, Japanese patent laid-open publication gazette No.10-32771 has shown a kind of rotational structure, and in this structure, a support column 7 is supporting a display 3, and a rotation platform 2 in pedestal 1 upper support.A thrust bearing 8 is arranged between pedestal 1 and the rotation platform 2, so that allow rotating display device 3.
If this rotational structure is applied to vertical type flat-panel display, just must adopt a kind of structure, make support column that display screen unit and main unit can be by supports in any way axial support.
(3) in vertical type flat-panel display shown in Figure 1, for example, the rotational structure in support 130 generally is a configuration driven device electrode, can rotate automatically to allow display screen unit 110 and main unit 120.
In the automatic rotational structure of this class, provide one can necessarily reduce the parts that ratio reduces the rotation output of drive motors.Particularly, a certain size load is placed on the rotating rotating shaft,,, just can controls the speed of automatic rotation by the ratio that selection suitably reduces even make and when drive motors stops, rotate and to stop.For example, in connecting the endless screw unit of drive motors, be provided with the capstan winch structure.
In Japanese Utility Model patent announcement No.63-61884A (1988) and Japanese Utility Model patent announcement No.64-31246U (1989), disclose the rotary speed that is similar in conventional display and reduced structure.
The former, Japanese Utility Model patent announcement No.63-61884A has disclosed a kind of rotatable cabinet, and in this cabinet, the main unit of cabinet can any rotatable mode be arranged on the pedestal.Because the weight of cabinet main unit makes bevel gear and output gear be meshing with each other, and can the vertical direction setting and driving reduce wheel chain.
The latter, Japanese Utility Model patent announcement No.64-31246 discloses a kind of steering structure, this steering structure comprises a gear, this gear can be accepted the rotation of gear structure, bevel gear is used for the gear of Elastic Meshing in axis one side, and the clutch that is installed on the upper brace also meshes bevel gear by this way.In this steering structure, gear structure and electrode can prevent to damage in the incident of excessive load moment of torsion.
Summary of the invention
The position adjustment structure of relevant flat-panel monitor
Along with the size of vertical type flat-panel display becomes big more, then video screen is also corresponding becomes big more, and therefore support must can support enough weight.In general, large-sized display screen is to be supported by two supports in the display screen left and right edges.In addition, trapezoid support can be used for being increased in the contact area between support and the display.Yet, wish to allow large-sized display screen can adopt single support to support.
At this moment, the single shaft support is necessary can be with the mode Rotation screen of level.In the situation of large-sized vertical type flat-panel display, particularly, even some tilts a little and all can produce big difference on the height between the left and right edges of wide display screen unit in the horizontal direction, if display has bigger inclination in the horizontal direction, this is just fairly obvious to the user.For example, well-known, under the situation of some large-sized LCD television set, if exist the inclination of 20 ' (about 1/3 degree) in the horizontal direction, the user will feel this inclination.
Vertical type flat-panel display generally can be designed to its main unit and can rotate by hand or automatically with respect to support.The horizontal level of main unit must be stablized, and makes it can not roll in the process of rotation.
The mode that adopts two supports or back shaft to support display unit can be regulated horizontal level at an easy rate.Yet, if display unit is to adopt single back shaft to be supported on the support, then in fact, no matter the precise design of main unit horizontal location how, the size of each parts all can produce a spot of variation, and perhaps a spot of error can be incorporated on the location of each parts in the process of assembling.Therefore, produce vertical type flat-panel display that the horizontal level of main unit can accurately keep according to design be unusual difficulty.
So one object of the present invention is to provide the position adjustment structure that is applicable to vertical type flat-panel display, wherein, vertical type flat-panel display has disposed the single shaft rotational structure and display screen unit can horizontally rotate.
The bearing arrangement of relevant rotating shaft in flat-panel monitor
Owing to use the material such as glass in the whole liquid crystal panel unit on display screen unit, vertical type flat-panel display is all very heavy usually.In addition, when LCD faceplate part and shell constituted with integration mode, the size of display was big more, and then the weight of main unit is just heavy more.In addition, in the situation of the support that is applicable to flat-panel monitor, the problem of existence is that flat-panel monitor can not seem thinner, unless carrier unit is done thinlyyer than main unit when seeing from the side.
For the above reasons, if main body display unit than the center of the axle of carrier unit more near screen front, then face tilt is a lot of forward for the center of gravity of display screen unit and main unit.Consequently, the center of gravity of display screen unit and main unit will depart from the pivot of support widely.
Obviously, when the display screen unit of flat-panel monitor can be positioned on the first half of rotational structure periphery, the center of gravity of display screen unit also will be positioned at the peripheral part of rotational structure forward, and this just produces bigger departing between the pivot of support and center of gravity.
If display screen unit and main unit are rotated under this condition, load will be applied on the bearing of rotational structure in irregular mode, thereby can influence the steady rotation of display screen unit and main unit.And in the described rotational structure of Japan Patent JP 08-331485, provide sufficient stability, but do not consider the departing from of center of gravity of display screen unit and main unit when rotated by the thrust bearing on the center of gravity direction.If adopt this class rotational structure in vertical type flat-panel display, then the axle of rotational structure will vertically rock with bearing, so can hinder the steady rotation of display screen unit and main unit.
So one object of the present invention is to provide a kind of rotational structure that is applicable to vertical type flat-panel display, wherein, the center of gravity of display screen unit and main unit can depart from the pivot of support rotational structure, thereby guarantees steady and stable rotation.
Relevant rotation-speed in flat-panel monitor reduces structure
The invention provides a kind of device, this device comprises that a main unit and one have a carrier unit that is used for the single shaft rotary unit of supportive body unit; This device also further is included in the parts of the inclined that is used to regulate main unit when carrier unit and main unit interconnect.
The present invention further provides a kind of flat-panel monitor, it comprises a main unit with display screen and a carrier unit that adopts single-rotation axis supportive body unit, and this device further is included in the parts of the inclined that is used to regulate main unit when carrier unit is connected with main unit.
Preferably, flat-panel monitor is included in carrier unit temporary fixed carrier unit and the parts of main unit and parts of extended immobilization carrier unit and display unit when being connected with main unit, wherein, before carrier unit and main unit extended immobilization, carrier unit and main unit can interfix temporarily, and regulate the inclination of main unit subsequently by the tilt adjustment parts.
According to the present invention, the tilt adjustment parts comprise an eccentric part that is arranged on carrier unit and the main unit link position.
The present invention further provides a kind of flat-panel monitor, it comprises a main unit and a carrier unit that adopts single-rotation axis supportive body unit with display screen, this device further comprises the link that is used to connect carrier unit and main unit, wherein, this link comprises the parts of a fixed support unit and main unit, and the tilt adjustment parts that are used to regulate the inclined of main unit.
According to the present invention, link further comprises the fastening screw that is used for locating support unit and main unit.
The present invention further provides a kind of flat-panel monitor, it comprises a main unit and a carrier unit that adopts single-rotation axis supportive body unit with display screen, this device further comprises the link that is used to connect carrier unit and main unit, and this link comprises: one allows required fixing carrier unit and main unit can adopt the fixing opening of screw mutually; And the tilt adjustment opening that is used to regulate the inclined of main unit, wherein, the inclination of main unit can be by being inserted in an eccentric cam in the tilt adjustment opening and rotating this eccentric cam and regulate.
The rotation axis bearing structure of relevant flat-panel monitor
The invention provides a main unit, carrier unit and one and be used for the rotational structure that main unit horizontally rotates with respect to carrier unit, wherein, rotational structure comprises the multiple bearing that is used for supporting rotating shaft.
According to the present invention, multiple bearing comprises the combination of journal bearing and thrust bearing.
According to the present invention, the center of gravity of main unit is positioned at the defined outside with reference to the rotation periphery of thrust bearing.
The present invention further provides a kind of flat-panel monitor, it comprises a kind of by a upper unit and the rotational structure that lower unit is made, wherein, lower unit has the fixedly single-rotation axis of upper unit, and upper unit has the journal bearing of multiple supporting rotating shaft, and the unit, upper and lower can rotate each other.
According to the present invention, a brake is arranged near the top of rotating shaft, and this brake can be fixed and can apply simultaneously on the position of certain axial force.
The rotary speed of relevant flat-panel monitor reduces structure
The invention provides a kind of flat-panel monitor, it comprises a main unit with display screen, a carrier unit, and one be used for the rotational structure that main unit horizontally rotates with respect to carrier unit, wherein, this rotational structure can be used in case the speed that the rotary load that applied reduces to rotate when exceeding certain level.
According to the present invention, rotational structure comprises two or more gears and clutch configuration, in a single day the rotary load that is used for being applied reduces the rotary speed between each gear when exceeding certain level.
According to the present invention, rotational structure comprises two or more gears, and these two or more gears are gears of torque limited, is applicable in a single day the rotary load that is applied just reduces the speed of rotating when exceeding certain level.
According to the present invention, the torque limited gear comprises upper gear and undergear, and wherein, upper gear and undergear are applicable to when in a single day the rotary load that is applied exceeds certain level with regard to friction slip.
According to the present invention, the torque limited gear comprises a gear pedestal, a upper gear that is fixed on the gear pedestal, and a undergear that is arranged between gear pedestal and the upper gear.Wherein, the gear pedestal has one and is arranged on it facing to the lip-deep friction means of undergear, and elastomeric element that is arranged between the gear of upper and lower, this elastomeric element is applicable to undergear pressing friction parts, makes undergear and gear pedestal friction slip mutually.
According to the present invention, rotational structure comprises a drive motors and can rotate automatically.
Preferably, flat-panel monitor further comprises the parts that are used to accept straighforward operation, and wherein the rotation of rotational structure can be controlled by straighforward operation.
According to the present invention, rotational structure comprises a position transducer and can discern it self position of rotation.
According to the present invention, rotational structure is applicable to the rotary speed that reduces between motor and gear or between gear, rotational structure further comprises a torque limited gear, wherein, just reduces the speed of rotating when the upper gear of torque limited gear and the mutual friction slip of undergear.
According to the present invention, the torque limited gear comprises a gear pedestal, it can be fixed on upper gear on the pedestal, and undergear is arranged between gear pedestal and the upper gear, its middle gear pedestal has a lip-deep friction means that is arranged on it facing to undergear, and an elastomeric element that is arranged between the gear of upper and lower, this elastomeric element is applicable to undergear compressed on the self-friction parts, makes undergear and gear pedestal friction slip mutually.
According to the present invention, wherein display screen comprises a LCD, a plasma scope, or an EL display.
Brief Description Of Drawings
Fig. 1 is the front view of a routine vertical type flat-panel display example.
Fig. 2 has shown the display screen unit that supports vertical type flat-panel display shown in Figure 1 and the frame structure of main unit.
Fig. 3 is applicable to according to the rotary unit of the position adjustment structure of the vertical type flat-panel display of first embodiment of the invention and the amplification rearview of setting angle.
Fig. 4 is applicable to according to the rotary unit of the position adjustment structure of the vertical type flat-panel display of first embodiment and the enlarged side view of setting angle.
Fig. 5 is applicable to according to the rotary unit of the position adjustment structure of the vertical type flat-panel display of first embodiment and the amplification plan view of setting angle.
Fig. 6 is the vertical view that is applicable to according to the position adjustment structure of the vertical type flat-panel display of first embodiment rotary unit, setting angle and aluminium chassis when the assembling.
Fig. 7 is applicable to the rotary unit of position adjustment structure and the rearview of setting angle, is similar to Fig. 3, but eccentric cam is inserted in the opening of position adjustments in this accompanying drawing.
Fig. 8 has shown according to the rotation axis bearing structure in the vertical type flat-panel display of second embodiment of the invention.
Fig. 9 has shown at the front sectional elevation according to the employed rotary unit of rotation axis bearing structure in the vertical type flat-panel display of second embodiment.
Figure 10 is presented at the side cutaway view according to the employed rotary unit of rotation axis bearing structure in the vertical type flat-panel display of second embodiment.
Figure 11 is at the upward view according to the upper unit of the employed rotary unit of rotation axis bearing structure in the vertical type flat-panel display of second embodiment.
Figure 12 is at the vertical view according to the upper unit of the employed rotary unit of rotation axis bearing structure in the vertical type flat-panel display of second embodiment.
Figure 13 is demonstration reduces the internal structure of structure according to the rotary speed of the vertical type flat-panel display of third embodiment of the invention a plane graph.
Figure 14 has shown that the rotary speed according to the vertical type flat-panel display of third embodiment of the invention reduces structure, shows the side cut away view of its internal structure.
Figure 15 is the amplification profile that reduces the included torque limited gear of structure according to the rotary speed of the vertical type flat-panel display of third embodiment of the invention.
Embodiment
Realize optimal mode of the present invention below with reference to the accompanying drawing discussion.
Fig. 1 to 15 has shown each embodiment of the present invention, and wherein, having substantially roughly the same, the like of 26S Proteasome Structure and Function adopts identical label.
Fig. 1 is the front view of a routine vertical type flat-panel display example.Fig. 1 (a) has shown that an example adopts the example of carrier unit 130 supporting display screen unit 110 and main unit 120.Another shown example class of Fig. 1 (b) is similar to the example shown in Fig. 1 (a), except the leg of carrier unit 130 longer.In another shown example of Fig. 1 (c), main unit 120 is installed in the back of display screen unit 110 in integrated mode.
Fig. 2 has shown the display screen unit that supports vertical type flat-panel display shown in Figure 1 and the frame structure of main unit, and the rotational structure that allows its display screen unit and main unit rotation.As shown in Figure 2, in vertical type flat-panel display, the framework 230 of aluminium can supported by setting angle 220 by the rotary unit 210 of the support mode with any rotation.
Fig. 2 (a) and (b) show corresponding to Fig. 1 (a) and example (b).
First embodiment: the flat-panel monitor of allocation position adjustment structure
The stent support part that can be used for the vertical type flat-panel display shown in Fig. 1 and 2 according to the position adjustment structure of the flat-panel monitor of present embodiment.By position adjustment structure, rotary unit 210 and fixed thereon 's setting angle 220 can be located and fixing aluminium chassis 230.
Fig. 3,4 and 5 is respectively the rotary unit 210 of support shown in Figure 2 and the back side, side and the vertical view of setting angle 220.Fig. 3 (a) and (b) shown respectively corresponding to Fig. 1 (a) and example (b).
With reference to figure 3 to 5, setting angle 220 comprises fastening screw 310 permanent openings 321 to 326, and position adjustments opening 331 to 332.Can adopt fastening screw 310 and be meshed from projection 231 (see figure 2)s that front panel (plastics are made) stretches out, can roughly locate when making setting angle 220 on being attached to aluminium chassis 230 by aluminium chassis 230.Fixing opening 321 to 326 and position adjustments opening 331 and 332 can both hold the screw that is used for the installation site of meticulous adjusting setting angle 220 and aluminium chassis 230 down, as discussed below.
The installation of rotary unit 210, setting angle 220 and aluminium chassis 230 hereinafter will be discussed.Fig. 6 has shown the vertical view of rotary unit 210, setting angle 220 and the aluminium chassis 230 of assembling.
With reference to figure 6 (a) and Fig. 7, the most at the beginning, each fastening screw 310 on setting angle 220 is inserted in by aluminium chassis 230 from the projection 231 that front panel (plastics are made) stretches out in the set opening, thereby determines the position of installing.So aluminium chassis 230 can adopt screw to fix.Aluminium chassis 230 only uses screw to fix, and makes that setting angle 220 is merely able to rotate slightly around the screw center in permanent opening 321 with respect to aluminium chassis 230.Then adopt the method for temporary fixed other permanent opening 322 to 326.Can do not undertaken provisional fixing by the moment of torsion that its own wt tilts with the main unit of flat-panel monitor.
In the present invention, the installation site of rotary unit 210 and aluminium chassis 230 can preferably be improved to shown in Fig. 6 (b).This improvement can come the design of angle changing 220 or fastening screw 310 to obtain effect by mode suitably.In addition, can use L shaped installing component, shown in Fig. 6 (c).
Subsequently, the installation site of rotary unit 210, setting angle 220 and aluminium chassis 230 can be regulated arbitrarily.Fig. 7 has shown the rear view of rotary unit and setting angle, is similar to Fig. 3.Yet, in Fig. 7, an eccentric cam 341 can be inserted in position adjustments opening 331.Fig. 7 (a) and (b) shown corresponding to Fig. 1 (a) and example (b).
In the present invention, eccentric cam 341 has an oval-shaped screw terminal.So when eccentric cam 341 rotations, the diameter of screw terminal changes in vertical direction.In Fig. 7, when eccentric cam 341 rotates to the right, screw terminal will have the bigger diameter of increase in vertical direction, make the upper inside wall of position adjustments opening 331 to be boosted by eccentric cam 341.
If when setting angle 220 should be regulated in the opposite direction, then eccentric cam 341 can be inserted in the position adjustments opening 332.By eccentric cam is rotated to the left side, the lower inner wall of position adjustments opening 332 will advance downwards.
Setting angle allows to rotate slightly around the screw shaft in the permanent opening 321 subsequently.Therefore, by the installation site of meticulous adjusting rotary unit 210, setting angle 220 and aluminium chassis 230 in eccentric cam 341 rotations, the display screen unit of flat-panel monitor and the position of main unit can be adjusted to level subtly.
After meticulous adjusting, 326 of temporary fixed permanent opening 322 can adopt fully and tighten up, so, just can be fully with rotary unit 210, setting angle 220 and aluminium chassis 230 fix in position.
The shape of eccentric cam 341 can adopt variety of way to form, as long as it is asymmetric with respect to pivot.For example, shape can be oval or eccentric circular, and the eccentric cam with this shape can also have the function of above-mentioned position adjustment structure.
The installation site of Fig. 3 and the permanent opening on setting angle 220 321 to 326 shown in Figure 7 and position adjustments opening 331 and 332 is for example example just only, and various other example all is possible.
For example, in the discussion of the home of above-mentioned manual rotating eccentricity cam 341 meticulous adjusting display screen units and main unit, meticulous adjusting also can be carried out automatically.In this case, provide a kind of suitable electric position adjustment part.
Position adjustment structure in the stent support part of the above-mentioned vertical type flat-panel display of discussing can be applied to the equipment of all various employing stent support.
Second embodiment: the flat-panel monitor of the bearing arrangement of configuration rotating shaft
Can be applicable to the stent support part of vertical type flat-panel display illustrated in figures 1 and 2 according to the bearing arrangement of the rotating shaft of flat-panel monitor of the present invention.The bearing arrangement of rotating shaft can be arranged on the inside of rotary unit 210.
Fig. 8 has shown rotary unit 210, and this rotary unit 210 comprises the rotational structure according to present embodiment.Rotary unit 210 comprises a upper unit 810 and a lower unit 820.The unit, upper and lower is applicable to rotating relatively with predetermined rotation torque.Upper unit 810 can be fixed on the aluminium chassis 230 by setting angle 220, and lower unit 820 can be fixed on the stand base 132.
Fig. 9 has shown the front sectional elevation of rotary unit 210.Figure 10 has shown the side cut away view of same unit.Figure 11 has shown the upward view of upper unit 810 of the rotational structure of present embodiment.Figure 12 has shown the vertical view of lower unit 820 of the rotational structure of present embodiment.
In Fig. 9 and rotational structure shown in Figure 10, lower unit 820 has one fixed thereon rotating shaft 910.Upper unit 810 comprises a upper ball bearing 920 and a lower ball bearing 930, is configured for the journal bearing of rotating shaft together.The lower end of rotating shaft 910 can adopt screw 940 to be fixed on the lower unit 820.The upper end of rotating shaft 910 can hang over the bearing portions of upper unit 810 by packing ring 950 anchors.
The rotational structure of present embodiment further comprise a plurality of with predetermined interval along being arranged on ball 960 between the unit, upper and lower with the coaxial circumference of rotating shaft 910.Each ball 960 can be used for contacting the upper surface rolling of lower unit 820, so have the function of thrust bearing.
So the rotational structure of present embodiment comprises two kinds of bearings, that is, comprise the journal bearing of upper ball bearing 920 and lower ball bearing 930, and the thrust bearing that comprises ball 960.Rotational structure with this structure mainly adopts thrust bearing to accept thrust load, and mainly adopts journal bearing to accept radial load, thereby allows level and smooth and stable rotation, even center of gravity is not on rotating shaft, as the situation at flat-panel monitor.
This structure can comprise thrust bearing and journal bearing, and it (is referred to as the circumference that locate at each ball 960 centers diametrically at the reference rotation round that the center of gravity of flat-panel monitor is in journal bearing; That is effective especially during the circumference among Figure 11 961) outside.This is because this departing from of center of gravity that can not cover spool with respect to thrust bearing institute is merely able to be covered by journal bearing, in having provided a kind of level and smooth rotation.
So, in flat-panel monitor, adopt above-mentioned rotational structure, just can in flat-panel monitor, obtain level and smooth rotation, even display screen unit is arranged on the outside, edge of thrust bearing forward.
According to present embodiment, in the first half of upper unit 810, be provided with a brake (the perhaps axle collar) 970, be used to keep rotating shaft 910.After rotating shaft 910 is adopted screw 940 fix in position, can adopt the screw that on the limit of the axle collar, is provided that brake 970 is pressed on the rotating shaft 910, simultaneously brake 970 is applied certain pressure.Therefore, with packing ring 950 be attached to the axle the upper end so that prevent coming off of brake 970.Particularly, brake 970 can adopt screw to compress, and the weight that can be scheduled to simultaneously (approximately 10Kg) (being referred to as " pressure of fixed position ") compresses brake.Consequently, rotating shaft rocking and can eliminate in vertical direction is in having provided a kind of level and smooth and stable rotation more.
The 3rd embodiment: the configuration rotary speed reduces the flat-panel monitor of structure
Rotary speed according to the flat-panel monitor of present embodiment reduces the stent support part that structure can be used on vertical type flat-panel display illustrated in figures 1 and 2.Rotary speed reduces the inside that structure can be formed in rotary unit 210.
Figure 13 has shown the profile of rotary unit 210, has comprised employed rotational structure in the vertical type flat-panel display of the present invention in this rotary unit.In Figure 13, rotational structure comprises 1330, one the 3rd gears 1340 of 1320, one second gears of 1311, one first gears of 1310, one worm screws of a drive motors, and a position transducer 1350.Drive motors 1310 is electrical equipment motors.For example, worm screw 1311, first gear 1320, second gear 1330 and the 3rd gear 1340 all are that plastics are made.
Figure 14 has shown the lateral sectional view of rotational structure.As being seen from this figure, worm screw 1311 is meshed with the undergear of first gear 1320.The upper gear of first gear 1320 is meshed with the upper gear of second gear 1330.The upper gear of the undergear of second gear 1330 and the 3rd gear 1340 is meshed.The undergear of the 3rd gear 1340 is used as an output gear.
In the rotational structure that is adopted in present embodiment ground vertical type flat-panel display, first gear 1320 has as the function that reduces the torque limited gear of rotary speed.The structure of first gear 1320 can show by amplification profile shown in Figure 15 in detail.As shown in Figure 15, first gear 1320 comprises a gear pedestal 1321, upper gear 1322, undergear 1323, a spring 1324, and a friction means 1325.
So the rotational structure that is constituted in the vertical type flat-panel display according to present embodiment has following operation.
With reference to Figure 13, when drive motors 1310 is driven, worm screw 1311 rotations, the rotation of worm screw 1311 is delivered to first gear, 1320, the second gears 1330 and the 3rd gear 1340 in succession, and exports from the undergear of the 3rd gear 1340 subsequently.
Now, suppose rotary load in its rightabout process, because the cause of obstacle or staff has been applied to according to the present embodiment vertical type flat-panel display with automatic direction of rotation.The load camera of rotation is delivered to second gear 1330 and is delivered to first gear 1320 subsequently from the undergear of the 3rd gear 1340.If rotary load is applied to first gear 1320, this gear is a torque limited gear, and the load that is applied is greater than predetermined level, and then the clutch configuration in first gear 1320 will start, thereby the load that reduces to rotate, as following to discuss.
With reference to Figure 15, the gear pedestal 1321 of first gear 1320 and undergear 1323 are used for by friction means 1325 mutual friction slip.When drive motors 1310 is driven and rotational structure when normally carrying out automatic rotation, will self-friction parts 1325 and undergear 1323 between produce static frictional force.Consequently, the rotation of worm screw 1311 is delivered to gear pedestal 1321 and upper gear 1322 with can having no loss.
Yet, if the rotary load that is applied has exceeded the static frictional force between friction means 1325 and undergear 1323, just rotation of undergear 1323, friction slip on friction means 1325 simultaneously.Consequently, rotary load between friction means 1325 and undergear 1323 with regard to having reduced to pass out from the undergear of second gear 1340.So, in this structure, between friction means 1325 and undergear 1323, do not have too much kinetic energy friction can be delivered to drive motors 1310, and no matter be to apply great rotary load from the outside to the 3rd gear.
Therefore.The rotary driving force that is produced by drive motors 1310 all the time not can with in rotary course automatically, be applied to the too much frictional force of rotational structure and conflict mutually from the outside.So each parts of rotational structure can be shared any too much load.
When rotary unit stops, might be by too much rotary load user's manufal operation time.In this case, rotary load can apply by the 3rd gear 1340, and can be reduced by first gear 1320, makes each parts can not bear too much load.
In the rotational structure of the vertical type flat-panel display of present embodiment, the coefficient of friction between first gear, 1320 gear pedestals 1321 and undergear 1323 can be regulated by the power of regulating spring 1324.In addition, coefficient of friction also can significantly be regulated by the material of selecting friction means 1325.
According to the further allocation position transducer 1350 on the rotational structure part of the vertical type flat-panel display of present embodiment.Position transducer 1350 can be used for detecting current position of rotation by the inwall that detects rotary unit.
Preferably, for example, when the vertical type flat-panel display actual installation of present embodiment when indoor, rotational structure should have certain rotation torque, make display screen unit not rotate, but can apply certain rotational pressure slightly by the user just can rotate because of wind.For example, in case friction means 1325 and undergear 1323 preferable should be just to begin mutual slip when applying the load of about 1.5Kg.
When adopting a routine embodiment that rotation-speed in the vertical type flat-panel display is discussed to reduce structure, various improvement or change and can add in this embodiment.For example, the gear of torque limited might not have first gear 1320, and the second or the 3rd gear can have the function of torque limited gear.In addition, in rotational structure, can provide a plurality of torque limited gears.
Conclusion
Specifically show and position adjustment structure of the present invention, rotation axis bearing structure and rotation-speed have been discussed and reduce structure with reference to above-mentioned specific embodiments, this area masterful technique personage should be appreciated that the various improvement on said structure and/or function or improves and do not break away from the spirit and scope of the present invention.
Commercial Application
According to position adjustment structure of the present invention, the position of the display screen unit of the vertical type flat-panel display of configuration rotational structure can meticulously be regulated, so that display screen unit can keep level.
According to rotation of the present invention-all bearing arrangements, in vertical type flat-panel display, can obtain steady and stable rotation, even the display screen unit of flat-panel monitor closes the pivot of rotational structure between the deviation of gravity center of main unit.
In addition, reduce structure according to the rotary speed of the present invention that is applicable to vertical type flat-panel display, all parts in the support of device can prevent too much or unusual rotary load in the rotary course at support.
Can be applied to dispose the vertical type flat-panel display of display screen such as LCD, plasma or EL display according to flat-panel monitor of the present invention.
Particularly, the present invention is applicable to commerce or the family expenses destination vertical type flat-panel display of configuration large scale display screen.
Claims (7)
1. flat-panel monitor, it is characterized in that, described flat-panel monitor comprises a main unit with display screen, a carrier unit, and one be used for the rotational structure that main unit horizontally rotates with respect to carrier unit, wherein, described rotational structure can be used in case the rotary load that applied reduces the transmission of rotary load when exceeding certain level;
Described rotational structure comprises two or more gears, and these two or more gears are gears of torque limited and are applicable in a single day the rotary load that is applied just reduces the transmission of rotary load when exceeding certain level;
Described torque limited gear comprises upper gear and undergear, and wherein, described upper gear and described undergear are applicable in a single day the rotary load that is applied just reduces the transmission of rotary load by friction slip when exceeding certain level.
2. according to the described flat-panel monitor of claim 1, it is characterized in that, described torque limited gear comprises a gear pedestal, a upper gear that is fixed on the gear pedestal, and undergear that is arranged between gear pedestal and the upper gear, wherein, described gear pedestal has one and is arranged on it facing to the lip-deep friction means of described undergear, and elastomeric element that is arranged between the gear of upper and lower, described elastomeric element is applicable to undergear pressing friction parts, make undergear and gear pedestal friction slip mutually, to reduce the transmission of rotary load.
3. according to claim 1 or 2 described flat-panel monitors, it is characterized in that described rotational structure comprises a drive motors and can rotate automatically.
4. according to the described flat-panel monitor of claim 3, it is characterized in that described flat-panel monitor further comprises the parts that are used to accept straighforward operation, the rotation of wherein said rotational structure can be controlled by straighforward operation.
5. according to claim 1 or 2 described flat-panel monitors, it is characterized in that described rotational structure comprises a position transducer and can discern it self position of rotation.
6. according to the described flat-panel monitor of claim 1, it is characterized in that, described rotational structure is applicable to the rotary speed that reduces between motor and gear or between gear, described rotational structure further comprises a torque limited gear, wherein, in case just reduce the transmission of rotary load during the mutual friction slip of the upper gear of torque limited gear and undergear.
7. according to the described flat-panel monitor of claim 6, it is characterized in that, described torque limited gear comprises a gear pedestal, it can be fixed on upper gear on the pedestal, and undergear is arranged between gear pedestal and the upper gear, wherein, described gear pedestal has a lip-deep friction means that is arranged on it facing to undergear, and elastomeric element that is arranged between the gear of upper and lower, described elastomeric element is applicable to undergear is compressed on the self-friction parts, make undergear and gear pedestal friction slip mutually, to reduce the transmission of rotary load.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-270752 | 2002-09-17 | ||
| JP2002270688A JP2004112232A (en) | 2002-09-17 | 2002-09-17 | Thin display device |
| JP2002270752A JP2004109392A (en) | 2002-09-17 | 2002-09-17 | Thin display apparatus provided with rotational mechanism |
| JP2002270744A JP2004112234A (en) | 2002-09-17 | 2002-09-17 | Thin display device |
| JP2002-270688 | 2002-09-17 | ||
| JP2002270688 | 2002-09-17 | ||
| JP2002270752 | 2002-09-17 | ||
| JP2002270744 | 2002-09-17 | ||
| JP2002-270744 | 2002-09-17 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03824585XA Division CN100377584C (en) | 2002-09-17 | 2003-09-12 | Panel display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101031045A CN101031045A (en) | 2007-09-05 |
| CN101031045B true CN101031045B (en) | 2010-05-19 |
Family
ID=32268283
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710007366 Pending CN101030452A (en) | 2002-09-17 | 2003-09-12 | Plat plate display |
| CN2007100073676A Expired - Fee Related CN101031045B (en) | 2002-09-17 | 2003-09-12 | Flat plate display apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710007366 Pending CN101030452A (en) | 2002-09-17 | 2003-09-12 | Plat plate display |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004109392A (en) |
| CN (2) | CN101030452A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006092834A1 (en) * | 2005-02-28 | 2006-09-08 | Belltec Company, Limited | Turntable |
| CN100401758C (en) * | 2005-08-15 | 2008-07-09 | 王政中 | Plate-type TV set active mount |
| JP4873228B2 (en) * | 2006-03-31 | 2012-02-08 | 下西技研工業株式会社 | Rotating device for flat display |
| JP2008111497A (en) * | 2006-10-31 | 2008-05-15 | Shimonishi Giken Kogyo Kk | Motor driven swivel device |
| JP5241308B2 (en) * | 2008-05-02 | 2013-07-17 | 三菱電機株式会社 | Turntable for display device |
| JP5219727B2 (en) * | 2008-10-16 | 2013-06-26 | 三菱電機株式会社 | Turntable for display device |
| JP5308177B2 (en) * | 2009-02-05 | 2013-10-09 | 株式会社タムロン | Power transmission device |
| CN101943311B (en) * | 2010-08-23 | 2012-12-26 | 广东爵仕泳池水疗设备有限公司 | Multifunctional TV mount |
| JP6533711B2 (en) * | 2015-07-28 | 2019-06-19 | 日本電産コパル株式会社 | Geared motor |
| JP6340032B2 (en) * | 2016-04-22 | 2018-06-06 | ミネベアミツミ株式会社 | Driving device and lighting device |
| CN107202228B (en) * | 2017-06-23 | 2018-08-07 | 泰州汇锦电子有限公司 | A kind of computer display screen fixation base structure |
| EP3483477B1 (en) | 2017-11-08 | 2021-01-20 | Magna Auteca GmbH | Drive assembly |
| JP2020039206A (en) * | 2018-09-04 | 2020-03-12 | 日本電産サンキョー株式会社 | Geared motor |
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|---|---|---|---|---|
| US5749556A (en) * | 1993-12-28 | 1998-05-12 | Mitsubishi Denki Kabushiki Kaisha | Rotating apparatus |
| CN1283926A (en) * | 1999-08-06 | 2001-02-14 | 松下电器产业株式会社 | Projecting television set and its mfg. method |
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2002
- 2002-09-17 JP JP2002270752A patent/JP2004109392A/en active Pending
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- 2003-09-12 CN CN 200710007366 patent/CN101030452A/en active Pending
- 2003-09-12 CN CN2007100073676A patent/CN101031045B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749556A (en) * | 1993-12-28 | 1998-05-12 | Mitsubishi Denki Kabushiki Kaisha | Rotating apparatus |
| CN1283926A (en) * | 1999-08-06 | 2001-02-14 | 松下电器产业株式会社 | Projecting television set and its mfg. method |
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| Title |
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| JP平8-314386A 1996.11.29 |
| JP昭57-178765A 1982.11.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101031045A (en) | 2007-09-05 |
| CN101030452A (en) | 2007-09-05 |
| JP2004109392A (en) | 2004-04-08 |
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