Background technology
Computing machine has become one of standing life instrument of modern, and flourish along with touch technology, most handheld computer or electronic communication product replace tradition with the form of mouse or physical keyboard input with contact panel, and be widely used in flat computer, intelligent mobile phone, PDA etc., and coordinate a new generation to support the operating system that touch-control is used, so that the user to be provided more directly perceived and operating experience easily.
Yet for notebook computer, the input equipments such as qwerty keyboard and Touch Pad Trackpad have been equipped with due to it, and the operating system that in the past was arranged on notebook computer is not supported touch-control input function or do not design therefore demand and the design of the rare touch-control of pure notebook computer traditionally for the touch-control gesture operation in the operation interface design.Yet, one side operating system manufacturer designs for notebook computer the operating system that can support touch control operation, the consumer is also day by day strong for experiencing as the demand of touch control operation as flat computer or intelligent mobile phone on the other hand, therefore the touch control operation function is provided on notebook computer or even is out of shape the demand that is transformed into flat computer and satisfies this generation.but because the display screen of notebook computer has constant weight, launching to be one at display screen with respect to computer base can be for after the angle of touch control operation, when the user directly carries out touch control operation to display screen and during the application of force, because the point of application is longer with respect to the moment of pivot, even but the pivot between display screen and main frame has certain damping torsion stationary positioned all when raising to any angle for display screen, but the user is using finger or pointer when pressing screen, still may or can cause the front and back of display screen to rock unstable, and affect user's operation comfort and cause visual uncomfortable.Severe patient when user's application of force is excessive, also may make display screen topple over backward in unsupported situation rearward, can affect on the contrary user's operating experience, even damages the notebook computer body.
Therefore prior art develops in the sway brace mode and supports the also way of pivotable connection display screen.
TaiWan, China patent announcement I316666 patent (U.S. US 7 for example wherein, 184, the 263B1 patent), its portable computer utilizes the sheet support member to prop up display screen, and the guide groove that is arranged at keyboard both sides by correspondence for the display screen bottom with respect to the computer body slippage, to reach the effect for the upright ornaments of display screen.Yet this design is only applicable to display screen flat computer up, and general notebook computer, its display screen all towards the keyboard direction, and can't be suitable for this design under non-working condition.Moreover; the demand target of this patent is flat computer; namely normality should be lie low up attitude of display screen, just pushed to slide whenever necessary tiltedly vertical, no matter so its display screen be to expose outside which kind of state is all outside and can't obtain suitable coverage protection.
And for example No. 566583 patent of TaiWan, China patent announcement is also another example, the electronic curtain of its notebook computer can be by a plurality of Designing Linkages of both sides, make electronic curtain to carry out rotary movement with respect to base, to reach the function that changes the screen display direction.Yet the setting that this design need to coordinate a plurality of interlinked mechanism assemblies that comprise the complexity such as pivotable, interlock and slip and operation to be reaching rollover effect, for the assembling of notebook computer and use operation comparatively unfavorable.And because mechanism is too complicated and supported on both sides mechanism and the interlinked mechanism that exposes arranged, therefore it is not only visually attractive in appearance, and slip passing process resistance is greatly also unsmooth stable, and even the user accidentally points in the operation sliding process and may have the anxiety that crushes in addition.Moreover, due to main frame both sides not only additionally headspace for the groove that the special construction shape is set and pivot, and electronic curtain two side frame bodies also additionally headspace setting wear groove and pivot and can be installed on for support member and wherein slide and rotate, therefore it is lightening that integral body can't be carried out, even also can reduce the visual panel area of electronic curtain.
Therefore, how being designed for the structure of portable computer, support and shuffle effect so that stable screen to be provided, is the problem of a worth research in fact.
Description of drawings
Fig. 1 is the schematic diagram of portable computer of the present invention.
Fig. 2 is the partial exploded view of the first embodiment of portable computer of the present invention.
Fig. 3 is the schematic diagram of the first embodiment of the slide assemblies of portable computer of the present invention.
Fig. 4 is the schematic diagram of the second embodiment of the slide assemblies of portable computer of the present invention.
Fig. 5 (a) is the schematic diagram of the 3rd embodiment of the slide assemblies of portable computer of the present invention.
Fig. 5 (b) is another schematic diagram of the 3rd embodiment of the slide assemblies of portable computer of the present invention.
Fig. 6 (a) is that the first embodiment of portable computer of the present invention is at the schematic diagram of closure state.
Fig. 6 (b) is that the first embodiment self-closing state transformation of portable computer of the present invention is the schematic diagram of opening.
Fig. 6 (c) is that the first embodiment of portable computer of the present invention is at the schematic diagram of opening.
Fig. 7 (a) is the schematic diagram of the second embodiment of portable computer of the present invention.
Fig. 7 (b) is the schematic diagram of the 3rd embodiment of portable computer of the present invention.
Fig. 8 is the schematic diagram of the 4th embodiment of portable computer of the present invention.
Fig. 9 is the schematic diagram of the 5th embodiment of portable computer of the present invention.
The primary clustering symbol description:
1,1a, 1b, 1c, 1d portable computer
10,10a, 10b, 10c, 10d base
11 keyboards
12,12a, 12b slide assemblies
121,121a, 121b sleeve sliding part
1211,1211a, 1211b articulated section
1212,1212a, 1212b sleeve part
1213,1213a, 1213b linking part
The 1214a location division
122,122a, 122b rod member
123,123b fixture
124 keepers
1241 interference parts
125 drive units
1251 limit switches
13,13d front end
14 rear ends
15,15d the firstth district
16,16d Second Region
161 surfaces
162,162c, 162d slit
20,20a, 20b, 20c, 20d display module
21 links
The 21a central part
22 display surfaces
23 supporting surfaces
24 free ends
30,30a, 30b, 30c, 30d support member
31 first stiff ends
32 second stiff ends
Embodiment
For allowing the auditor more understand technology contents of the present invention, be described as follows especially exemplified by going out preferred embodiment.
Please in the lump with reference to figure 1 and Fig. 2.Fig. 1 is the schematic diagram of portable computer 1 of the present invention, and Fig. 2 is the part sectioned view of portable computer 1 of the present invention.In one embodiment of this invention, portable computer 1 is notebook computer, but different according to application type, portable computer 1 also can be flat computer, little notebook computer or other have the electronic installation of flip-shell display module, but is not limited with the present embodiment.
Fig. 2 carries out section along the center line of portable computer 1 of the present invention in fact.As shown in Figures 1 and 2, portable computer 1 of the present invention comprisesbase 10,display module 20 and support member 30.The end face ofbase 10 has separated onefirst district 15 and aSecond Region 16 between itsfront end 13 andrear end 14, thefirst district 15 is nearfront end 13 and front, Second Region 16 is nearrear end 14 and rear, wherein thefirst district 15 can be equipped with akeyboard 11 and/or other input medias such as Trackpad or touch point (track point) etc., Second Region 16 has aslide assemblies 12, under other suitable embodiment,slide assemblies 12 also can extend to forward part or all of the first district 15.It should be noted that at thisslide assemblies 12 can be arranged at the central part ofSecond Region 16 or be equivalent to central part.
Can coordinate simultaneously shown in Figure 3,slide assemblies 12 comprisessleeve sliding part 121 androd member 122,sleeve sliding part 121 provides the assembly of sliding function and pivot joint function for combination, it is located onrod member 122, make thesleeve sliding part 121 can be alongrod member 122, slide with respect tobase 10 at theSecond Region 16 of 11, baserear end 14 andkeyboard.Surface 161 central authorities ofSecond Region 16 are provided with aslit 162, andslide assemblies 12 is arranged onSecond Region 16 bottoms with respect to the position ofslit 162, and forexample rod member 122 can be fixed in by the fixed sturcture offixture 123 andbase 10surface 161 times of base 10.Different with design requirement,slide assemblies 12 also can extend to thefirst district 15 fromSecond Region 16, makesslit 162 be positioned to comprise part or all surface location inSecond Region 16 and thefirst district 15, androd member 122 is arranged at position underslit 162 corresponding.
Display module 20 compriseslink 21,display surface 22, supportingsurface 23 andfree end 24,display surface 22 is the apparent surface with supportingsurface 23,link 21 is the opposite end withfree end 24, anddisplay module 20 can be articulated insleeve sliding part 121 by for example hinge (hinge) assembly at the central part 21a oflink 21, form a rotatable pivoting point, makedisplay module 20 to rotate with respect tosleeve sliding part 121;Display module 20 can arrange atdisplay surface 22 display screen of supporting the touch-control input, in order to receive user's touch control operation.
Support member 30 comprises that the firststiff end 31 and the secondstiff end 32, the first stiff ends 31 can be articulated in by for example hinge component the supportingsurface 23 ofdisplay module 20, to form a rotatable pivoting point, makesdisplay module 20 with respect to supportmember 30 rotations; The secondstiff end 32 also can be articulated in baserear end 13 by for example hinge component, to form another rotatable pivoting point, makessupport member 30 with respect tobase 10 rotations.
Please in the lump with reference to figure 3, Fig. 3 is the schematic diagram of the first embodiment of the slide assemblies 12 of portable computer 1 of the present invention.As shown in Figures 2 and 3, in the present embodiment, the sleeve sliding part 121 of slide assemblies 12 comprises articulated section 1211, sleeve part 1212 and linking part 1213, the central part 21a of the link 21 of display module 20 is articulated in sleeve sliding part 121 by articulated section 1211, for example articulated section 1211 can be to adopt torsionless and the hinge component that only freely rotates in latch (pin) mode merely, but can be also employing as have the hinge component of torsion or appropriate rotation friction between notebook computer display screen and main machine base.Sleeve part 1212 connects articulated section 1211 by linking part 1213; And the sleeve part 1212 of sleeve sliding part 121 is for being sheathed on rod member 122.In the present embodiment, sleeve part 1212 is that internal diameter size adapts to slightly greatly the hollow cylindrical structure of rod member 122 diameters, but but this sleeve part 1212 also can adopt C shape tube-in-tube structure or other ring sets with opening or take the structure of riding on rod member 122.And sleeve part 1212 itself can adopt the material with lubricant effect to make, and for example has from moistening the stainless steel of characteristic, and with the shuffle effect of raising sleeve sliding part 121, but the present invention is not as limit.In like manner, rod member 122 also can use the material with identical characteristics to make.But certainly, also can be coated with lubricating fluid on rod member 122 to reduce and the friction force of 1212 of sleeve parts.
be that outward appearance consistance and the design sense coordinate portable computer 1 of the present invention, the rod member 122 of slide assemblies 12 are arranged at the surface 161 times of the Second Region 16 of base 10, and arrange corresponding to the position of slit 162, to present the structure steganography effect, and the sleeve sliding part 121 of slide assemblies 12 is equipped with the slit 162 in susceptor surface 161 on structural design, the thickness that makes the width of slit 162 be not less than linking part 1213 less than sleeve part 1212 external diameters (but adopts at narrow slit structure in the telescopic material situation of flannelette for example, slit width can be less than the thickness of linking part 1213), the linking part 1213 of sleeve sliding part 121 can pass slit 162 and can move along slit 162 by this, and make articulated section 1211 expose to the surface 161 of base 10, so that the link 21 and articulated section 1211 pivot joint each other of display module 20.Design according to this, except the articulated section 1211 and part linking part 1213 of the sleeve sliding part 121 that exposes, other parts of sleeve sliding part 121 and rod member 122 all can be hidden in the surface 161 times of base 10; And the surface 161 of the articulated section 1211 of exposing and base 10 by the part linking part 1213 that exposes to keep a spacing, make the display module 20 that is articulated in articulated section 1211 to rotate smoothly and avoid being subject to the interference of base 10.Therefore, design of the present invention both can be kept overall appearance, again the unlikely action that has influence on sleeve sliding part 121 and display module 20.
Please refer to Fig. 4, Fig. 4 is the schematic diagram of the second embodiment of theslide assemblies 12a of portable computer 1 of the present invention.The present embodiment is the version of aforementioned the first embodiment, should be noted, as previous designs, in Fig. 4,slide assemblies 12a is arranged under the surface of base, and in order more clearly to present the action ofslide assemblies 12a, base and surface thereof are not together drawn explanation hereby.As shown in Figure 4, in the present embodiment,slide assemblies 12a also comprises at least one group ofkeeper 124, and eachkeeper 124 is relatively arranged on the fixed point ofcontiguous rod member 122a, herein location of fixed points can according to display module withsleeve sliding part 121a slippage after the actual ornaments angle that presents determine.Eachkeeper 124 is provided with interference parts such as salient point orshell fragment 1241, andkeeper 124 can coordinate the elastic parts setting or itself have elasticity, so that the elasticity positioning function to be provided.
Sleeve sliding part 121a also comprises at least onelocation division 1214a, and eachlocation division 1214a is connected insleeve part 1212a, and the position of its setting coordinates the position ofaforementioned keeper 124 settings.Eachlocation division 1214a is provided with corresponding interference parts such as recess or interference piece corresponding to theinterference part 1241 of eachkeeper 124.
Sleeve sliding part 121a generally can move freely alongrod member 122a bearing of trend (thesleeve sliding part 121a that for example is represented by dotted lines in Fig. 4); And whensleeve sliding part 121a moved to alongrod member 122a the fixed position that is provided withkeeper 124,sleeve sliding part 121a can coordinate by thelocation division 1214a ofself interference part 1241 with flexible eachkeeper 124 to produce locating effect.Design, slide onto the positioning function of arbitrary fixed point so that display module to be provided withsleeve sliding part 121a by this.
Below please in the lump with reference to figure 5 (a) and Fig. 5 (b).Fig. 5 (a) is the schematic diagram of the 3rd embodiment of the slide assemblies 12b of portable computer 1 of the present invention; Fig. 5 (b) is another schematic diagram of the 3rd embodiment of the slide assemblies 12b of portable computer 1 of the present invention.The present embodiment is also the version of aforementioned the first embodiment, should be noted, as previous designs, in Fig. 5 (a) and Fig. 5 (b), slide assemblies 12b is arranged under the surface of base, and in order more clearly to present the action of slide assemblies 12b, base and surface thereof are not together drawn, hereby explanation.As shown in Fig. 5 (a), in the present embodiment, slide assemblies 12b also comprises drive unit 125, its connecting rod 122b, can drive rod member 122b by drive unit 125, the sleeve sliding part 121b that is sheathed on rod member 122b with drive moves along rod member 122b.Wherein drive unit 125 can be linear motor or servo motor, and rod member 122b is the screw rod that outside surface is provided with helicitic texture, the sleeve part 1212b inwall of sleeve sliding part 121b is the corresponding corresponding female thread structure (not shown) that is provided with the helicitic texture that coordinates rod member 122b also, but the present invention is not as limit.
As shown in Fig. 5 (b), during whendrive unit 125 reception signals and by action, will driverod member 122b is rotated, match by the contact with each other helicitic texture of face of thesleeve part 1212b inboard ofrod member 122b andsleeve sliding part 121b this moment, makesleeve sliding part 121b according to the sense of rotation difference ofrod member 122b, to move alongrod member 122b towards different direction (as shown in the direction of arrow in figure).
In addition, as shown in Fig. 5 (a) and Fig. 5 (b),drive unit 125 comprises at least onelimit switch 1251, eachlimit switch 1251 is electrically connected with the body ofdrive unit 125, whenarbitrary limit switch 1251 is triggered, namely can transmit electric signal to the body ofdrive unit 125, stop action with notice drive unit 125.In the present embodiment, eachlimit switch 1251 wears and protrudes fromfixture 123b surface, but when makingsleeve sliding part 121b move nearfixture 123b, butt triggerslimit switch 1251, but the setting position oflimit switch 1251 is not limited with the present embodiment.Accordingly, atsleeve sliding part 121b becausedrive unit 125 drivesrod member 122b in producing mobile process, whensleeve sliding part 121b moves torod member 122b both sides near the position offixture 123b, can stop by triggeringlimit switch 1251drive unit 125 and continue to driverod member 122b, 121b continues to move with restriction sleeve sliding part, and this moment is as shown in Fig. 5 (a).
And operation for the convenience of the users,drive unit 125 also can be electrically connected an operating parts (not shown), this operating parts can be the button that is arranged at base or display module, make the user by triggering this button to startdrive unit 125, and can arbitrarily control the displacement ofsleeve sliding part 121b, adjust the fixed position of display module with correspondence, but the form that arranges of operating parts and position be not as limit.
Please in the lump with reference to figure 6 (a), Fig. 6 (b), Fig. 6 (c).Fig. 6 (a) is that the first embodiment of portable computer 1 of the present invention is at the schematic diagram of closure state; Fig. 6 (b) is that the first embodiment self-closing state transformation of portable computer 1 of the present invention is the schematic diagram of opening; Fig. 6 (c) is that the first embodiment of portable computer 1 of the present invention is at the schematic diagram of opening.
As shown in Fig. 6 (a), when portable computer 1 of the present invention is under closure state,display module 20 is superimposed onbase 10, and is articulated insleeve sliding part 121 withlink 21, thismoment display module 20display surface 22 towardsbase 10;Support member 30 also is stacked ondisplay module 20, and is articulated in baserear end 14 anddisplay module 20 with the firststiff end 31 and the secondstiff end 32 respectively.In the present embodiment, be in the portable computer 1 under closure state, thelink 21 of itsdisplay module 20 is positioned on parallel in fact different axis from the secondstiff end 32 ofsupport member 30, and the length that makessupport member 30 is greater than thelink 21 ofdisplay module 20 length to the firststiff end 31 of support member 30.Yet the different demands according to structural design, the secondstiff end 32 that is inlink 21 that portable computer 1 under closure state also can adoptdisplay module 20 andsupport member 30 remains on the design on same axis, make the length ofsupport member 30 equal thelink 21 ofdisplay module 20 to the length of the firststiff end 31 ofsupport member 30, the present invention is not as limit.
As shown in Fig. 6 (b), as the user tofree end 24 application of forces of thelink 21 relative opposite sides ofdisplay module 20 and wish is openeddisplay module 20, in process away from closure state,display module 20 can be along withsupport member 30 take the secondstiff end 32 as fulcrum, with respect tobase 10 rotations at the beginning; Until its rotation lift open certain angle after, length byaforementioned support member 30 is not less than thelink 21 ofdisplay module 20 to the design of the length of the firststiff end 31 ofsupport member 30, makedisplay module 20 beginning take the firststiff end 31 ofsupport member 30 as fulcrum, with respect to supportmember 30 rotations;Display module 20 can be takelink 21 as fulcrum simultaneously, with respect to 121 rotations of sleeve sliding part, and promotesleeve sliding part 121 and move forward onrod member 122, that is thelink 21 that drivesdisplay modules 20 bysleeve sliding part 121 atSecond Region 16 towards the slippage forward of thefirst district 15.
As shown in Fig. 6 (c), when firststiff end 31 ofdisplay module 20take support member 30 rotates as fulcrum is lasting, and thelink 21 that makessleeve sliding part 121drive display module 20 slides onto forward suitable place (for example end of rod member 122) towards thefirst district 15, namely presents the opening of portable computer 1 of the present invention.This moment,display module 20 was an angle of inclination with respect tobase 10, and thedisplay surface 22 ofdisplay module 20 is towards the user, and the support effect of 10 ofdisplay module 20 and bases is provided bysupport member 30.
Otherwise, when user's wish with portable computer 1 of the present invention when opening returns back to closure state, also only need to pull forward by the reverse application of forcefree end 24 ofdisplay module 20, makedisplay module 20 rotation take the firststiff end 31 ofsupport member 30 as fulcrum, and link 21 can drive with towards baserear end 14 direction slippages bysleeve sliding part 121, until slide onto another end ofrod member 122,display module 20 rotates the position to closure state again take the secondstiff end 32 as fulcrum withsupport member 30.
By this, portable computer of the present invention does not need complicated assembly combination interlock, only need utilize one group of slide assemblies that is positioned at central authorities can reach the effect better than known technology, not only reduces the use of component count, and makes single unit system comparatively lightening.And thesleeve part 1212 ofslide assemblies 12 is hidden inslit 162 belows and makedisplay module 20 be close to thesurface 161, therefore will make integral body almost inorganic structures expose, not only can keep outward appearance succinctly attractive in appearance, and also not have the anxiety that clips to user's finger.
Specifically, adopt the middle design of putting of single group ofslide assemblies 12 due to aforementioned various embodiments of the present invention, not only need not take the frame space of the screen sides ofbase 10 anddisplay module 20, and the user turn over lift ordisplay module 20 processes of sliding in only need to use one and hold the general central position of display modulefree end 24, because the position of its position and slid underneathassembly 12 is suitable, namely can very successfully promotedisplay module 20 slippages, and the stability whendisplay module 20 slippage can also be provided operates to facilitate the user.Even the user is as long as one turn over and raisedisplay module 20,display module 20 opens that its bottom namely can slide onto the location forward automatically to the certain angle, and obtainsupport member 30 firm support rearward, therefore when the user carries out touch control operation with finger to displaymodule 20, screen will be stablized and not rock.
Coordinate the structural design mode of thesingle slide assemblies 12 that is positioned at equally relative central position to reach above-mentioned effect purpose with thesingle support member 30 that is positioned at central authorities in aforesaid each embodiment; just comply with the choice of different user demands, effect balance and mechanism design; the present invention is not limited with previous embodiment design, and the change on change, length or the width equidimension of every variation, position on machine the number of components etc. all must belong to the same inventive concept of this case and be protected by the scope of the listed claims of this case.The slide assemblies that uses in each embodiment of following portable computer is illustrated with the first embodiment ofaforementioned slide assemblies 12, but its also replaceable be aforementionedother slide assemblies 12a, 12b or similar structures assembly etc., the present invention is not as limit.
For example, please in the lump with reference to figure 7 (a) and Fig. 7 (b).Fig. 7 (a) is the schematic diagram of the second embodiment of portable computer 1a of the present invention; Fig. 7 (b) is the schematic diagram of the 3rd embodiment of portable computer 1b of the present invention.According to different designs of the present invention, portable computer can provide the support effect of display module by more than one support member, and can the change with design for the setting position of support member.As shown in Fig. 7 (a), in the present embodiment, portable computer 1a of the present invention comprises two parallel support member 30a side by side, is arranged at respectively the both sides of thesingle slide assemblies 12 of central authorities, to form symmetrical structure.Two ends of each support member 30a are articulated in respectively non-display of display module 20a and locate and base rear end.By the design of extension supporting spare (strong point), can reach display module 20a and carry out to lift and open or stable support and shuffle effect when closed.
And for example shown in Fig. 7 (b), changed for previous embodiment, two support member 30b of portable computer 1b of the present invention can be arranged at respectively two relative sides of display module 20b near the rear side place, utilize the designed linkage assembly that is construed as of rod member of elongate, reduce support member 30b and take up space and assemble complexity, be beneficial to the action of secondary module 20b.Yet the embodiment of relevant a plurality of support members is not limited with previous embodiment.
Please refer to Fig. 8, Fig. 8 is the schematic diagram of the 4th embodiment of portable computer 1c of the present invention.According to different designs of the present invention, except the setting position and quantity that change support member, but for slide assemblies and corresponding setting position and the also change of quantity that is arranged at the slit of susceptor surface, to present different embodiments.As shown in Figure 8, in the present embodiment, portable computer 1c of the present invention comprises two groups ofslide assemblies 12 of the both sides that are arranged at respectivelysingle support member 30c, and at the correspondence position ofbase 10c, aslit 162c is set respectively, to present a Parallel Symmetric structure.Make by thisdisplay module 20c lift open or closed procedure in can utilize the drive of two groups ofslide assemblies 12 and move the stability when mobile to strengthen.
Yet, those of ordinary skills also can three embodiment from above-mentioned Fig. 7 (a) to Fig. 8 as can be known, can be in conjunction with the characteristics of this two embodiment, be combined into according to this portable computer structure with dual-gripper part and two slide assemblies, because it can understand easily from Fig. 7 (a) the possible mode of its combination to Fig. 8, therefore no longer another the drawing shown expression.
Please refer to Fig. 9, Fig. 9 is the schematic diagram of the 5th embodiment of portable computer 1d of the present invention.According to different designs of the present invention, for the displacement of slide assemblies and the length setting of corresponding slit, also can change along with the design difference.As shown in Figure 9, in the present embodiment, theslide assemblies 12 of portable computer 1d of the present invention andcorresponding slit 162d extend from theSecond Region 16d ofbase 10d thefirst district 15d that arranges tobase 10d, extend the skidding distance ofdisplay module 20d, to increase the angle of inclination ofadjustable display module 20d, even also can lie low fully and be superimposed onbase 10d, making portable computer 1d have more flexible Application.Different from user demand with design,slide assemblies 12 andcorresponding slit 162d can select to extend to the subregion of thefirst district 15d ofbase 10d or Zone Full (namely nearfront end 13d position), but the present invention is not as limit.And the feature of the prolongation slit of this embodiment can also be in conjunction with earlier figures 7 (a) to the arbitrary of Fig. 8 or its combination.
To sum up institute is old, and no matter the present invention everywhere all shows it totally different in the feature of known technology with regard to purpose, means and effect, is a quantum jump, earnestly asks the auditor to perceive, and grants early quasi patent, makes Jiahui society, and the true feeling moral just.Only must note, above-described embodiment only is signal explanation principle of the present invention and the effect thereof of giving an example, but not is used for limiting the scope of the invention.Any those skilled in the art all can under know-why of the present invention and spirit, make an amendment and change embodiment.The scope of the present invention should be as described in the scope of appending claims.