CN1131842C - Lifting and lowering device for working cage - Google Patents
Lifting and lowering device for working cage Download PDFInfo
- Publication number
- CN1131842C CN1131842C CN 00103640 CN00103640A CN1131842C CN 1131842 C CN1131842 C CN 1131842C CN 00103640 CN00103640 CN 00103640 CN 00103640 A CN00103640 A CN 00103640A CN 1131842 C CN1131842 C CN 1131842C
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- reel
- lifting
- working cage
- lowering device
- camshaft
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Abstract
An object of the invention is to provide an elevator for a working cage capable of being miniaturized without directly applying hung load to a guide mechanism for a wire rope. A rotary reciprocating drive mechanism 30 is installed, sheaves 31, 33, 35 on which a plurality of wire ropes 8, from which the working cage 9 is suspended, are stretched are fixed onto a device body 21, and a drum 11, on or from which a plurality of these wire ropes 8 are wound or delivered, is reciprocated in the axial direction of the drum and the wire ropes are wound under an aligned state. Thus, hung load is not applied directly to the mechanism 30, in which the wire ropes 8 are brought to the aligned state, and abrasion and damage are prevented extremely while these mechanisms are miniaturized.
Description
Technical field
The present invention relates to a kind of steel rope that outside wall surface of being used to suspend in midair to building etc. etc. is carried out the working cage of operation that furls and emit, make the lifting and lowering device for working cage of working cage lifting, this jacking system can not bear a heavy burden the suspention of working cage and directly be carried on the reciprocal rotating drive mechanism.
Background technology
Carry out in the method for operation in a kind of outside wall surface to building etc. etc., adopt from the roof etc. and to hang working cage down, carry out operation with the handling device that is installed in the working cage by the operator in the working cage.
For utilizing such working cage to carry out operation, as shown in figure 11, the front end of the telescopic boom of installing in the chassis 4 of walking on the track of laying along the inboard of the revetment 2 on roof 135 is equipped with the central portion of swivel arm 6, being wound in the front end that constitutes the steel rope 8 on the reel 7a be arranged on the jacking system 7 in the walking carriage 4 links to each other with working cage 9 under hanging from swivel arm 6 two ends by telescopic boom 5, on the one hand, by steel rope 8 is furled working cage is risen, by emit steel rope 8 from reel 7a working cage is descended on the one hand.
Existing working cage jacking system 7 as shown in figure 12, with two steel ropes 8, under the situation of 8 suspension operation cages 9, be provided with two reel 7a coaxially, 7a, by with reel 7a, two pulley 7d that are screwed on the square thread axle 7c of the guiding mechanism 7b that the rotational synchronization of 7a is rotated, 7d, steel rope 8 is separately incited somebody to action on the limit, 8 when rising a direction and the reversing sense when descending on leading edge it fitly is wound on reel 7a, on the periphery of 7a, prevent thus because of two steel ropes 8,8 furl length and emit the variation of length and the inclination of the working cage 9 that causes.
; in the jacking system 7 of this working cage 9; the pulley 7d that is used for fitly furling the guiding mechanism 7b of steel rope 8 directly bears the suspention of working cage 9 and bears a heavy burden; square thread 7c very easily weares and teares or destroys; therefore the guiding mechanism 7b of the square thread axle 7c that necessary use high load capacity bearing performance is strong etc. exists device and maximizes and expensive problem.
In view of the problem of such prior art, the present invention will provide a kind of and suspend heavy burden in midair and can directly not be carried on the steel rope guiding mechanism and lifting and lowering device for working cage can miniaturization.
Summary of the invention
For solving above-mentioned problem, technical scheme 1 described lifting and lowering device for working cage of the present invention is that a kind of other end that is connected many steel ropes on the working cage by an end furls on reel or from reel through pulley and emits and the lifting and lowering device for working cage of lifting, it is characterized in that, guide the above-mentioned pulley of above-mentioned many steel ropes to be fixed on the device body, and be provided with the reciprocal rotating drive mechanism that axially moves back and forth, furls or emit steel rope when above-mentioned reel rotates driving with neat state.
According to this lifting and lowering device for working cage, reciprocal rotating drive mechanism is set, the pulley that many steel ropes that hang working cage are hung thereon is fixed on the device body, make the reel that furls or emit these steel ropes axially move back and forth and furl steel rope with neat state along it, therefore suspention is born a heavy burden and can directly be carried on the steel rope guiding mechanism, and can realize miniaturization.
According to this lifting and lowering device for working cage, by being parallel to four axis of guides that reel axially is provided with and the orienting lug guiding reel that is directed along these axis of guides, therefore can not make large-scale guiding mechanism ground is provided with small-sized guiding mechanism on four positions, thereby can realize miniaturization and.
According to this lifting and lowering device for working cage, on reel one end, drive motor is installed, the power that this drive motor of input is installed on the other end to be to drive the reductor that reel rotates, and therefore can make the weight uniformization of reel etc., and reel is successfully moved back and forth.
Technical scheme 4 described lifting and lowering device for working cage are characterised in that, in technical scheme 1-3 each described structure, in the reciprocal rotating drive mechanism of above-mentioned reel, camshaft and guiding mechanism have been equipped with, wherein, camshaft is parallel to above-mentioned reel and axially is provided with and is formed with the face cam that is subjected to above-mentioned reel rotating drive power and is driven rotation, and guiding mechanism moves back and forth relatively along the face cam of this camshaft.
According to this lifting and lowering device for working cage, be equipped with and be parallel to the reel axial arrangement and be formed with the camshaft that is subjected to reel rotating drive power and is driven the face cam of rotation, with the relative guiding mechanism that moves back and forth of face cam along camshaft, thereby constitute the reciprocal rotating drive mechanism of reel, realized mechanism simplifying on the one hand, reel can move back and forth in rotating drive on the one hand.
As above to an embodiment specifically described, according to technical scheme 1 described lifting and lowering device for working cage of the present invention, reciprocal rotating drive mechanism is set, the pulley that many steel ropes that hang working cage are hung thereon is fixed on the device body, make the reel that furls or emit these steel ropes axially move back and forth and furl steel rope with neat state along it, therefore suspention is born a heavy burden and can directly be carried in the mechanism that makes steel rope be in neat state, can be anti-attrition as far as possible and damaged, and can realize the miniaturization of these mechanisms.
According to technical scheme 2 described lifting and lowering device for working cage of the present invention, by being parallel to four axis of guides that reel axially is provided with and the orienting lug guiding reel that is directed along these axis of guides, therefore can not make large-scale guiding mechanism ground is provided with small-sized guiding mechanism on four positions, thereby can realize miniaturization and.
According to technical scheme 3 described lifting and lowering device for working cage of the present invention, on reel one end, drive motor is installed, the power that this drive motor of input is installed on the other end is to drive the reductor that reel rotates, therefore can make the weight uniformization of reel etc., and reel is successfully moved back and forth.
According to technical scheme 4 described lifting and lowering device for working cage of the present invention, be equipped with and be parallel to the reel axial arrangement and be formed with the camshaft that is subjected to reel rotating drive power and is driven the face cam of rotation, with the relative guiding mechanism that moves back and forth of face cam along camshaft, thereby constitute the reciprocal rotating drive mechanism of reel, therefore realized mechanism simplifying on the one hand, reel can move back and forth in rotating drive on the one hand.
Description of drawings
Fig. 1 is the block diagram of configuring condition of the pulley of guiding steel wire rope among the embodiment of expression lifting and lowering device for working cage of the present invention.
Fig. 2 is the block diagram of reel part among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 3 is the block diagram of the driver train part that reel back and forth rotates among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 4 has omitted front view local among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 5 has omitted birds-eye view local among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 6 has omitted right side view local among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 7 has omitted transverse sectional view local among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 8 is the front view of reciprocating drive mechanism part among the embodiment of lifting and lowering device for working cage of the present invention.
Fig. 9 is the birds-eye view of reciprocating drive mechanism part among the embodiment of lifting and lowering device for working cage of the present invention.
Figure 10 is the right side view of reciprocating drive mechanism part among the embodiment of lifting and lowering device for working cage of the present invention.
Figure 11 is the scheme drawing of the working cage that is suitable for of existing lifting and lowering device for working cage.
Figure 12 is the stereoscopic figure of the existing lifting and lowering device for working cage of general introduction.
The specific embodiment
Below, describe one embodiment of the present of invention in detail according to drawing.
According to Fig. 1-Figure 10 the embodiment of 4 suspension operation cages with jacking system institute applicable situation is described here.
Fig. 1-Figure 10 represents an embodiment of lifting and lowering device for working cage of the present invention, Fig. 1 is the block diagram of configuring condition of the pulley of guiding steel wire rope among the embodiment of expression lifting and lowering device for working cage of the present invention, Fig. 2 is the block diagram of reel part, Fig. 3 is the driver train block diagram partly that reel back and forth rotates, Fig. 4 has omitted local front view, Fig. 5 has omitted local birds-eye view, Fig. 6 has omitted local right elevation, Fig. 7 has omitted local transverse sectional view, Fig. 8 is the front view of reciprocating drive mechanism part, Fig. 9 is the birds-eye view of reciprocating drive mechanism part, and Figure 10 is the right side view of reciprocating drive mechanism part.
Sectional perspective outward appearance as illustrated in fig. 1 is such, operation jar verdant is by four steel ropes, 8 suspention lift work cages 9 with the effect of jacking system 10, it is set at along in the walking carriage 4 that moves on the inboard track of laying of roof revetment for this reason, and it can also be set at trackless walking carriage and fixedly in the rotary type chassis.
Lifting and lowering device for working cage 10 is equipped with corresponding to four steel rope 8a, 8b, 8c, 8d ground has four reels 11 that furl the 11a of portion, 11b, 11c, 11d, and reel 11 is rotatably supported on reel pedestal 12a, the 12b that is disposed at reel 11 two ends by end quill shaft 13a, 13b.
These reel pedestals 12a, 12b link to each other by four bracing bars 14a, have constituted reel stand 14.
In reel 11, be provided with the ring flange plate that respectively furls the 11a of portion, 11b, 11c, 11d at interval, furl height when its projecting height furls steel rope 8 greater than multilayer, and on these furl the periphery of the 11a of portion, 11b, 11c, 11d, be formed with and be used for the semicircle shape plug helix of Wound steel rope 8 fitly.
Also be provided with and rotate reciprocating drive mechanism 15, when driving reel 11 rotations it is moved back and forth, fitly Wound steel rope 8.
Rotate for driving reel 11, the motor 16 of band brake has been installed on the outside of the reel pedestal 12a that constitutes reel stand 14, be bearing on the periphery of motor 16 output shaft 16a by bearing 17 with the end quill shaft 13a of reel 11 one, reductor 18 with double brake device has been installed on the outside of reel pedestal 12b, link to each other with the outer circumferential side output shaft 18a of dual axis structure by key with the end quill shaft 13b of reel 11 one, thereby rotatably support reel 11.
Rotating shaft 19 links to each other with the output shaft 16a of motor 16 by coupler 19a, and rotating shaft 19 is configured in reel 11 central parts, links to each other with interior all side input shaft 18b of the dual axis structure of reductor 18.
So, because motor 16 rotates, input shaft 18b by motor output shaft 16a, coupler 19a, rotating shaft 19, reductor 18, the output shaft 18a of reductor 18 and rotating drive power is passed to end quill shaft 13b, can drive the reel 11 be bearing on the reel stand 14 by end quill shaft 13a, 13b thus and rotate, and reel 11 can be along with the forward and reverse of motor 16 then forward and reverse rotation.
In addition, the double brake device that can keep the drg of the motor 16 by driving reel 11 and reductor 18 is parked in the state of optional position with reel 11, therefore, can make that the working cage 9 of lifting stops on any job position by steel rope 8.
Then, move back and forth in order to drive such driving rotating drum 11, orienting lug 20 is installed downwards respectively on the both ends of four jiaos reel pedestal 12a, 12b being positioned at reel stand 14 highlightedly, and the axis of guide 22 that they can be installed in abreast along the central axis direction with reel 11 on the lower bracket 21a of constituent apparatus body 21 is reciprocatingly disposed thereon.
Therefore, owing to reel stand 14 moves along four axis of guides 22 by orienting lug 20, so the reels 11 that are bearing in the reel stand 14 are moved back and forth on it is axial.
Move back and forth in order to drive the reel stand 14 that can move back and forth, and with the synchronization of reel 11 reel 11 moved back and forth and fitly furl steel rope 8, columned camshaft 23 is set in the bottom of reel pedestal 12a and passes through gear case 24 rotatably supports, formed the eight shape cam path 23a that is made of two antispin on the periphery of camshaft 23, the cam follower 25 that is directed along cam path 23a is fixed on the cross sill 21b of constituent apparatus body 21.
In addition, camshaft 23 links to each other with the output shaft 24b of gear case 24, and sprocket wheel 26 is installed on the input shaft 24a, by the chain 28 between the sprocket wheel 27 that is suspended on it and installs integratedly with the end quill shaft 13a of reel 11 and the chain slide 29 input shaft 24a with the rotational synchronization ground drive gear casing 24 of reel 11.In gear case 24, Drive pinion 24c is installed on the input shaft 24a, mesh the gear 24f that is installed on the output shaft 24b by intermediate gear 24d, 24e.
So, when driving reel 11 and rotate, be driven to rotate with the sprocket wheel 27 of end quill shaft 13a one, by the input shaft 24a of chain 28 drive gear casings 24, and drive output shaft 24a by miniature gears 24c, intermediate gear 24d, 24e and gear 24f, rotate with drive cam shaft 23.
At this moment, because cam follower 25 is fixed on the cross sill 21b of constituent apparatus body 21,, move back and forth to the rotational synchronization of reel 11 itself and reel 11 amount that furls pitch so along with the rotation of camshaft 23, reel stand 14 moves back and forth.
Four four steel rope 8a, 8b, 8c, 8d that furl on the 11a of portion, 11b, 11c, the 11d that are wound on reel 11 are respectively furled on reel 11 on one side, on one side with furl pitch and move with matching, thereby go out in neat state last volume retractable, when the end of the 11a of the portion that respectively furls that furls or be released to reel 11,11b, 11c, 11d, reel 11 oppositely moves by cam path 23a, and the multilayer of carrying out under neat state furls or emits.
For when carrying out such rotating drive, surround with rotational synchronization the outside of reel stand 14 of the reel 11 that moves back and forth, also be provided with device body 21, device body 21 bottoms constitute as previously discussed, the lower bracket 21a that wherein is assembled into rectangle is installed on the cross sill 21b that be arranged in parallel, front and back support 21c, 21d and left and right sides support 21e, 21f and upper bracket 21g have been installed on lower bracket 21a, under the state that is assembled into the case shape, have constituted device body 21.
In the device body 21 that constitutes like this, be provided with four steel rope 8a, 8b on the 11a of the portion that respectively furls that guiding is wound on reel 11 respectively, 11b, 11c, the 11d, the leading sheave mechanism 30 of 8c, 8d.
First assembly pulley 31 that constitutes leading sheave mechanism 30 is arranged on reel 11 outermost, first assembly pulley 31 is made of four first pulley 31a, 31b, 31c, 31d, they can be arranged on the front frame 21c of device body 21 by horizontal shaft rotationally, be located at the reel 11 that moves back and forth the scope central portion the 11a of the portion that respectively furls, 11b, 11c, 11d central portion these pulleys are set, and be provided with the top and anterior コ font anticreep rope portion 32 that surrounds the first pulley 31a, 31b, 31c, 31d respectively.
Therefore, pulley cover 34 has covered these six second pulley 33a, 33b, 33c, 33d, 33e, 33f and only in front openings.
In these second assembly pulleys 33 with respect to reel 11 to the downstream on the 3rd assembly pulley 35 is set, the 3rd assembly pulley 35 is made of four the 3rd pulley 35a, 35b, 35c, 35d, and four transversely arranged and can be installed in rotationally on the central upper of front frame 21c around horizontal shaft.
Therefore, the steel rope 8a that is wound on the 11a of the portion that furls of reel 11 reels to upside from the downside of the first pulley 31a, by the second pulley 33a, 33b is drawn towards the 3rd pulley 35a, being wound on the steel rope 8b that furls on the 11b of portion reels to upside from the downside of the first pulley 31b, be drawn towards the 3rd pulley 35c by the second pulley 33c, being wound on the steel rope 8c that furls on the 11c of portion reels to upside from the downside of the first pulley 31c, be drawn towards the 3rd pulley 35b by the second pulley 33d, being wound on the steel rope 8d that furls on the 11d of portion reels to upside from the downside of the first pulley 31d, by the second pulley 33f, 33e is drawn towards the 3rd pulley 35d, so four steel rope 8a-8d are directed out from the 3rd pulley 35a-35d with horizontal state arranged side by side.
Like this, by four steel rope 8a-8d of leading sheave mechanism 30 guiding as shown in Figure 1, be installed on four jiaos of working cage 9, as the 11a of the portion that furls that steel rope 8a-8d is wound up into reel 11,11b, 11c, when 11d is last, be that the 11a of the portion that furls fully, 11b, the 11c with reel 11, the same position volume of 11d hang on the reel 11, by first assembly pulley 31, second assembly pulley 33, the 3rd assembly pulley 35 make to the steel rope 8 of working cage 9 to join Suo Changdu identical as far as possible.
Under four steel rope 8a-8d are connected state between lifting and lowering device for working cage 10 and the working cage 9, drive motor 16 ground of control reel 11 furl steel rope 8a-8d, thereby rise working cage 9, and when emitting, steel rope reduces working cage 9, reel 11 is stopped, working cage 9 is remained on institute's allocation so that carry out the outside wall surface operation, and steel rope 8a-8d furls and emits along with the lifting of working cage 9 is that leading sheave mechanism 30 by being fixed on the device body 21 is guided, be wound on the reel 11 that moves back and forth by reciprocal rotating drive mechanism 15 or emit from it so that neat state is overlapping.
According to such lifting and lowering device for working cage 10, constitute first assembly pulley 31 of the leading sheave mechanism 30 of guiding steel wire rope 8, second assembly pulley 33 and the 3rd assembly pulley 35 are fixed on the device body 21, when reel 11 rotates it is moved back and forth when driving by reciprocal rotating drive mechanism 15, fitly to furl, emit steel rope 8, therefore there is no need to make bear that steel rope 8 that working cage 9 suspentions bear a heavy burden moves back and forth and on reel 11 proper alignment, suspention is born a heavy burden be not applied directly on the camshaft 23 or cam follower 25 that moves back and forth, can simplify these structures thus and can prevent its wearing and tearing and breakage as far as possible simultaneously.
In this lifting and lowering device for working cage 10, because guiding furls orienting lug 20 that the reel 11 of steel rope 8 moves back and forth and the axis of guide 22 and is separately positioned on four jiaos of reel stand 14, even so axially long reel 11, mechanism's channeling conduct that also can enough compactnesses, in can the implement device lightness, can also reduce price.
In addition, in this lifting and lowering device for working cage 10, owing to be provided with motor 16 and reductor 18 respectively on the both sides of reel 11, so the weight of the reel stand 14 that moves back and forth has become evenly, load to each axis of guide 22 has also become evenly, can successfully back and forth drive thus.
In the above-described embodiments, the situation of the working cage that is applicable to four lifting ropes is illustrated, but the present invention is not limited to this, also can be applicable to the working cage of two lifting ropes.
Claims (5)
1. lifting and lowering device for working cage, to be the other end that is connected many steel ropes on the working cage by an end through pulley furl on reel or emit from reel carries out in its lifting, it is characterized in that, guide the above-mentioned pulley of above-mentioned many steel ropes to be fixed on the device body, and be provided with the reciprocal rotating drive mechanism that axially moves back and forth, furls or emit steel rope when above-mentioned reel rotates driving with neat state.
2. lifting and lowering device for working cage as claimed in claim 1, it is characterized in that, in the reciprocal rotating drive mechanism of above-mentioned reel, be equipped with the mechanism of the orienting lug channeling conduct that is directed by four axis of guides that are parallel to that this reel axially is provided with along these axis of guides.
3. lifting and lowering device for working cage as claimed in claim 1 or 2, it is characterized in that, in the reciprocal rotating drive mechanism of above-mentioned reel, be equipped be arranged on the drive motor on above-mentioned reel one end and be arranged on the above-mentioned reel other end, the power of importing this drive motor to be to drive the reductor that reel rotates.
4. lifting and lowering device for working cage as claimed in claim 1 or 2, it is characterized in that, in the reciprocal rotating drive mechanism of above-mentioned reel, camshaft and guiding mechanism have been equipped with, wherein, camshaft is parallel to above-mentioned reel and axially is provided with and is formed with the face cam that is subjected to above-mentioned reel rotating drive power and is driven rotation, and guiding mechanism moves back and forth relatively along the face cam of this camshaft.
5. lifting and lowering device for working cage as claimed in claim 3, it is characterized in that, in the reciprocal rotating drive mechanism of above-mentioned reel, camshaft and guiding mechanism have been equipped with, wherein, camshaft is parallel to above-mentioned reel and axially is provided with and is formed with the face cam that is subjected to above-mentioned reel rotating drive power and is driven rotation, and guiding mechanism moves back and forth relatively along the face cam of this camshaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16223499A JP4040793B2 (en) | 1999-06-09 | 1999-06-09 | Lifting device for work cage |
| JP162234/1999 | 1999-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1277300A CN1277300A (en) | 2000-12-20 |
| CN1131842C true CN1131842C (en) | 2003-12-24 |
Family
ID=15750531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00103640 Expired - Lifetime CN1131842C (en) | 1999-06-09 | 2000-02-28 | Lifting and lowering device for working cage |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4040793B2 (en) |
| CN (1) | CN1131842C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005029113B3 (en) * | 2005-06-23 | 2006-08-10 | Demag Cranes & Components Gmbh | Carrier frame for hoist cable has a longitudinal bearer with detachable end plates and with its ends pressed against resting surface transversely |
| DE102009036356A1 (en) * | 2009-08-06 | 2011-02-17 | Demag Cranes & Components Gmbh | overhead crane |
| CN102285603A (en) * | 2011-08-15 | 2011-12-21 | 广州格睿德工程机械有限公司 | Topping winch for driving drum to carry out translational motion |
| DE102012001592B4 (en) | 2012-01-27 | 2019-02-28 | Liebherr-Components Biberach Gmbh | winch |
| CN102616692A (en) * | 2012-03-19 | 2012-08-01 | 马超 | Multi-hoisting point two-dimensional transmission automatic rope arranging compound crane |
| CN103287997B (en) * | 2013-06-18 | 2015-06-24 | 杭州华新机电工程有限公司 | Double-layer winding hoisting mechanism |
| CN103434966B (en) * | 2013-09-02 | 2016-01-20 | 广东华晨影视舞台专业工程有限公司 | Dual mode elevator |
| CN103613020B (en) * | 2013-11-29 | 2015-10-14 | 中联重科股份有限公司 | Combined pulley block and crane |
| CN105293298B (en) * | 2015-11-18 | 2017-11-03 | 佛山市百特思舞台设备有限公司 | A kind of elevator of stage |
| CN105417417A (en) * | 2015-12-16 | 2016-03-23 | 四川电力建设三公司 | Winch lifting system of die lifting device |
| CN106429715A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Cable trolley |
| CN108915238A (en) * | 2018-07-26 | 2018-11-30 | 申锡机械有限公司 | A kind of suspension mechanism for hanging basket |
| CN115515889A (en) * | 2020-04-14 | 2022-12-23 | 利勃海尔比伯拉赫零部件有限公司 | Cable winch, method for winding the cable winch and crane with the cable winch |
| CN113526048A (en) * | 2021-06-21 | 2021-10-22 | 张家港宏昌钢板有限公司 | Blast furnace material loading inclined bridge track guardrail installing the system |
-
1999
- 1999-06-09 JP JP16223499A patent/JP4040793B2/en not_active Expired - Lifetime
-
2000
- 2000-02-28 CN CN 00103640 patent/CN1131842C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP4040793B2 (en) | 2008-01-30 |
| CN1277300A (en) | 2000-12-20 |
| JP2000352189A (en) | 2000-12-19 |
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