CN1597486A - Elevator speed regulation mechanism - Google Patents
Elevator speed regulation mechanism Download PDFInfo
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- CN1597486A CN1597486A CN 200410078714 CN200410078714A CN1597486A CN 1597486 A CN1597486 A CN 1597486A CN 200410078714 CN200410078714 CN 200410078714 CN 200410078714 A CN200410078714 A CN 200410078714A CN 1597486 A CN1597486 A CN 1597486A
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- overspeed switch
- speed regulation
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Abstract
Provided is a speed control mechanism for an elevator with high reliability, capable of easily carrying out adjustment without bulkiness in shape. The speed control mechanism 5 for the elevator is provided with a lower adjuster link 10b operated accompanying with rotation of a sheave 8 wound with an adjuster rope of the elevator; and a cam 19 interlocked and turned with the lower adjuster link 10b. An arm 21 having a cam roller 20 engaged with the cam 19 is turnably provided on a rotation shaft 17. The cam 19 is turned by action of the lower adjuster link 10b and the arm 21 having the cam roller 20 is turned to operate an overspeed switch 11.
Description
Technical field
The present invention relates to detect the regulating mechanism that hypervelocity, the overspeed switch that makes elevator and the wire clip pincers worker of the moving velocity of the cab of elevator or bob-weight are done.
Background technology
At 129 of the building standard method operational command of the safety device of determining elevator 10 No. 2 and put down into Japan's construction in 12 years (2000 Christian eras) and economize in the bulletin No. 1432 the 2 No. 2, carried out following regulation, if promptly must being set, the speed of the cab that descends surpasses specified value, the device of then preventing cab to descend automatically.
Figure 11 is the figure of summary mechanism that expression is provided with the general elevator of emergency braking device, the cab 1 of elevator is sling by two jackstays 2, by there not being the lifting in elevating road of graphic winch, and, by being arranged on guide rail 3 its liftings of guiding on this elevating road.Emergency braking device 4 is installed on cab 1, and the speed of the cab 1 of, elevator unusual at the rotative speed of jackstay 2 fracture, winch surpasses under the situation of specified speed, clamps guide rail 3, mechanically cab 1 is stopped.That is, after the regulating mechanism 5 that is arranged on the Machine Room detected the hypervelocity of elevator, the wirerope clamp 6 that is installed on this regulating mechanism 5 was started working, and catches the governor wirerope 7 that is wrapped on the regulating mechanism 5.Like this, if after governor wirerope 7 was booked, by the safe connecting rod 8 that is installed in cab 1, emergency braking device 4 was activated.
Figure 12 is the general regulating mechanism that expression is used for higher speed elevator.In general, regulating mechanism 5 has: pulley 8, rotating counterweight 9, top governor connecting rod 10a, speed are adjusted spring 12, bottom governor connecting rod 10b, and package has governor wirerope 7 on the pulley 8; Rotating counterweight 9 and pulley 8 interlocks, generation centnifugal force; Top governor connecting rod 10a is connected with rotating counterweight 9, along with the variation campaign of centnifugal force; Speed is adjusted the motion of spring 12 control top governor connecting rod 10a, the kinematic velocity of control regulating mechanism 5, and elevator reaches specified speed when above, startup overspeed switch 11.In addition, regulating mechanism 5 has wirerope clamp 6, fixation side wirerope clamp 13 and fastening spring 14, and wirerope clamp 6 is that speed starts when further rising, and catches governor wirerope 7; Fixation side wirerope clamp 13 be 6 relative with this wirerope clamp, catch governor wirerope 7; Fastening spring 14 gives the hold of these wirerope clamp 6 regulations.
And, as Figure 13 and shown in Figure 14, be provided with wrist 15, connecting portion 16 and S. A. 17, be assembled with fastening spring 14 on the wrist 15, support the motion of wirerope clamp 6; Connecting portion 16 connects this wrist 15 and wirerope clamp 6; S. A. 17 is fulcrums that rotatablely move of this wrist 15.Figure 14 is the birds-eye view of Figure 13.
That is, when the wirerope clamp started by bottom governor connecting rod 10b, wrist 15 was that the center is rotated descending motion with wirerope clamp 6 with S. A. 17, and wirerope clamp 6 contacts with governor wirerope 7.Then, by with the friction force of the contact part of this governor wirerope 7, wirerope clamp 6 is further left behind downwards (traction), begins to carry out the action of controlling of governor wirerope 7 with fixation side wirerope clamp 13.
Like this, drawn downwards by wirerope clamp 6, wrist 15 one sides push fastening spring 14 one sides and are rotated descending motion, and the thrust pressure of the fastening spring 14 of this moment is sent on the wirerope clamp 6 as hold by connecting portion 16.This wirerope clamp 6 is in the place of only being drawn certain amount downwards, and wirerope clamp 6 collides with substrate 18, and the rotation descending motion is limited, and at this moment, fastening spring 14 is caught governor wirerope 7 with the hold of regulation.By above-mentioned a series of action, wirerope clamp 6 is caught governor wirerope 7 with the hold of regulation, makes emergency braking device 4 actions by safe connecting rod 8.
As shown in figure 12, existing governor is top governor connecting rod 10a and the bottom governor connecting rod 10b direct control overspeed switch 11 by the centnifugal force motion that utilizes bob-weight 9.
Figure 15 is the chart that the relation with existing operating effort-speed makes.Shown in chart, in the front and back of overspeed switch work, because the variation of action resistance, the variation of operating effort has lost continuity.
And, before overspeed switch 11 will be worked, the power of the centnifugal force of bob-weight 9, spring 12, action resistance balance.But overspeed switch 11 is in case work, because the action resistance of overspeed switch 11 eliminated suddenly, and lack of equilibrium then, the balance position that produces with bob-weight 9 is the elastic oscillation at center.If its maximum vibration surpasses the wirerope clamp operating position under the static balance condition, might carry out maloperation with the speed that is lower than specified speed.
And this action resistance is often different variant because of the product of overspeed switch 11, and the action resistance is poor greater than the operating effort of switch often, need split to close and select.
In case lose the continuity that operating effort changes,,, then adjust very difficult if there is not sufficient velocity contrast from overspeed switch 11 wirerope clamp 6 work of working.
In addition, build to economize in 12 years in the bulletin No. 1432 the 2 No. 2 putting down into, require to carry out following action, that is, even after work, on overspeed switch 11, up to carrying out artificial recovery operation, it will keep action (cut-off loop) in nature.Be attached to essentiality on the switch from the function with existing maintenance action, additional mechanism providing additional operation becomes the restriction of saving space, cost-cutting.
The present invention considers the problems referred to above, and the regulating mechanism that do not increase outside dimension to provide, adjust to be easy to, reliability is high is a purpose.
Summary of the invention
The present invention is a kind of elevator speed regulation mechanism, make the overspeed switch of elevator and the elevator speed regulation mechanism that the wire clip pincers worker is done, have governor connecting rod, cam and arm, the governor connecting rod be along with package have elevator the governor wirerope pulley rotation and work; Cam and this governor connecting rod interlock and rotation; Arm combines with this cam, and is rotated freely and is provided with, and it is characterized in that, the rotation by this arm makes overspeed switch work.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that, arm has the cylinder that combines with cam, and this cylinder is on the perpendicular line of the centre of gration of cam.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that, also has the cam of appending and appends arm, appends cam to be and cam interlock and rotation; Appending arm is to append cam interlock and rotation with this, drives the wirerope clamp, by this rotation of appending arm, makes overspeed switch work freely.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that, the buffering absorber is set near arm, contact when this buffering absorber makes overspeed switch work at arm.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that, the arm ratchet device is set on the S. A. of arm, and when arm made overspeed switch work, this arm ratchet device prevented the recovery of overspeed switch; Arm spring pin mechanism is set on arm, and when arm made overspeed switch work, this arm spring pin mechanism prevented the recovery of overspeed switch; The cam ratchet device is set on the S. A. of cam, and when arm made overspeed switch work, this cam ratchet device prevented the recovery of overspeed switch; The cam spring pin mechanism is set on cam, and when arm made overspeed switch work, this cam spring pin mechanism prevented the recovery of overspeed switch.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that, bob-weight is installed on arm, increases the rotational force of arm.
The present invention is a kind of elevator speed regulation mechanism, it is characterized in that mounting spring on arm, the rotational force of increase arm.
According to the present invention, in order to make the overspeed switch work of carrying out work in the last stage that the wire clip pincers worker is done, can use arm and cam, overspeed switch is carried out indirect operation.Therefore, can reduce the discountinuity of operating effort, the discountinuity of this operating effort results from the overspeed switch of operating effort of regulating mechanism.Like this, even the existing hyper-speed elevator of adjusting difficulty also can have the high regulating mechanism of reliability.And, carry out the maintenance action of overspeed switch by arm, can use the switch of standard hinge roller rod type, can cost-cutting and space.
According to the present invention, the centre of gration of cam is consistent with the center of arc, because the load point of cylinder is on its perpendicular line, therefore, the aviation value of the action resistance when cam moves repeatedly drops to minimum, can correctly keep the continuity of operating effort.
According to the present invention, owing to have a following mechanism, promptly with wirerope clamp interlock, when the wire clip pincers worker is done, make the mechanism of overspeed switch work once more, even therefore for a certain reason overspeed switch do not work, by attempting making overspeed switch work once more, can improve reliability.
According to the present invention, restore in order to prevent the overspeed switch mistake, on arm supports, the buffering absorber is set, can improve reliability.
In addition, according to the present invention,, can improve reliability on arm by the arm ratchet device being set, preventing the recovery of overspeed switch mistake.
According to the present invention,, can improve reliability on arm by arm spring pin mechanism being set, preventing the recovery of overspeed switch mistake.
According to the present invention,, can improve reliability on cam by the cam ratchet device being set, preventing the recovery of overspeed switch mistake.
According to the present invention,, can improve reliability on cam by the cam spring pin mechanism being set, preventing the recovery of overspeed switch mistake.
According to the present invention, bob-weight is installed on arm, is increased rotational force, improve the miniaturization of arm and the operating effort of overspeed switch, also can easily be suitable for the switch of big operating effort.
According to the present invention,,, can expect further to make the miniaturization of arm and improve operating effort by using spring in order to improve the rotational force of arm.
Description of drawings
Fig. 1 is an embodiment figure of expression elevator speed regulation mechanism of the present invention.
Fig. 2 is the birds-eye view of elevator speed regulation mechanism shown in Figure 1.
Fig. 3 is the action diagram of expression elevator speed regulation mechanism of the present invention.
Fig. 4 is in the expression elevator speed regulation mechanism of the present invention, the movement state diagram of overspeed switch.
Fig. 5 is the movement state diagram of expression wirerope clamp.
Fig. 6 is the modified example of expression elevator speed regulation mechanism of the present invention.
Fig. 7 is the modified example of expression elevator speed regulation mechanism of the present invention.
Fig. 8 is the modified example of expression elevator speed regulation mechanism of the present invention.
Fig. 9 is the modified example of expression elevator speed regulation mechanism of the present invention.
Figure 10 is the modified example of expression elevator speed regulation mechanism of the present invention.
Figure 11 is the summary pie graph that is provided with the general elevator of urgent stop mechanism and regulating mechanism.
Figure 12 is an example of the existing regulating mechanism of expression.
Figure 13 is the lateral plan of the existing wirerope clamp of expression.
Figure 14 is the birds-eye view of expression wirerope clamp shown in Figure 13.
Figure 15 is the operating effort of the overspeed switch of the existing regulating mechanism of expression.
Figure 16 is the operating effort of the overspeed switch of expression elevator speed regulation mechanism of the present invention.
The specific embodiment
Following with reference to accompanying drawing, describe with regard to embodiments of the present invention.
Fig. 1 to Fig. 5 is an embodiment of expression elevator speed regulation mechanism of the present invention.
Extremely shown in Figure 5 as Fig. 1, the regulating mechanism 5 of elevator is with existing identical, have (with reference to Fig. 1 and Figure 12): pulley 8, rotating counterweight 9, top governor connecting rod 10a, speed are adjusted spring 12, bottom governor connecting rod 10b, and package has governor wirerope 7 on the pulley 8; Rotating counterweight 9 and pulley 8 interlocks, generation centnifugal force; Top governor connecting rod 10a is connected with rotating counterweight 9, along with the variation campaign of centnifugal force; Speed is adjusted the motion of spring 12 control top governor connecting rod 10a; The action that bottom governor connecting rod 10b adjusts spring 12 along with speed direction is up and down moved.And, as described later,, make the overspeed switch 11 and 6 work of wirerope clamp of elevator by the action of bottom governor connecting rod 10b.
And regulating mechanism 5 has cam 19 and arm 21, and cam 19 is set on the substrate 18, with bottom governor connecting rod 10b interlock, in the rotation on every side that is arranged on the S. A. 22 on the pedestal 33; Arm 21 has swing roller 20, the rotation around S. A. 17 that combines with cam 19, and bob-weight 30 is fixed on the arm 21.
And, on substrate 18, being respectively arranged with the connecting rod 24 of rotation around S. A. 25a and appending cam 25, connecting rod 24 combines with the connecting rod 24a of rotation around S. A. 22.
And transverse arm 15 is rotated and is arranged on freely on the S. A. 17, and fastening spring 14 is wound onto on this transverse arm 15, and wirerope clamp 6 is installed in the top of transverse arm 15 by S. A. 16.
In addition, fixation side wirerope clamp 13 and wirerope clamp be 6 relative, be set on the substrate 18, and governor wirerope 7 is sandwiched between fixation side wirerope clamp 13 and the wirerope clamp 6.
In addition, substrate 18 is provided with buffering absorber 37, and as described later, when arm 21 made overspeed switch 11 work, this buffering absorber 37 contacted with arm 21.And control stalk 23 is rotated and is arranged on freely on the S. A. 17, transverse arm 15 interlocks of this control stalk 23 and wirerope clamp 6, moves.
Extremely shown in Figure 5 as Fig. 1, different is with existing technology, not directly to carry out the operation of overspeed switch 11 by the rotation of lower link 10b, but carry out the operation of overspeed switch 11 that this rotational force is to produce from cam 19 landing by lower link 10b rotation, arm 21 by rotational force.
In addition, Fig. 3 (a) and (b), (c) are the lateral plans of overspeed switch, it is respectively the state before 21 landing of Fig. 3 (a) expression arm, Fig. 3 (b) expression is by the landing of arm 21, state in overspeed switch 11 work, the maintenance action, Fig. 3 (c) expression is by control stalk 23, overspeed switch 11 again task, keep the state in the action.
Below, the effect of the present embodiment that forms with regard to above-mentioned formation describes.
After arm 21 landing, cut the 21a of portion by the surface of arm 21, overspeed switch 11 is worked swimmingly, and this overspeed switch 11 continues the stable mode of operation (Fig. 3 (a) and (b)) of maintenance in the side of arm 21.
And after the centnifugal force of pulley 8 increased, the connecting rod 24a that is fixed on the S. A. 22 made connecting rod 25 anti-clockwise rotations that are fixed on the S. A. 25a.At this moment, cam roller 26 breaks away from appends cam 25, and the wrist 15 of wirerope clamp 6 descends, makes 6 work of wirerope clamp.In this case, because the wrist 15 of wirerope clamp 6 is connected with control stalk 23 by S. A. 17, therefore, in case 6 work of wirerope clamp, control stalk 23 also similarly rotates with wrist 15, makes overspeed switch 11 task (Fig. 3 (c)) again.Therefore, even because the action of arm 21, overspeed switch does not have under the open circuited situation, and control stalk 23 also can make overspeed switch 11 work.
In European specification (EN81-1), defined is arranged such as the content of when wirerope clamp 6 is worked, overspeed switch 11 being cut off like this.
Like this, owing to can utilize bottom speed governing connecting rod 11b, by cam 19, arm 21, append cam 25 and control stalk 23, overspeed switch 11 is carried out indirect operation, therefore, there is no need to utilize bottom speed governing connecting rod 11b that overspeed switch 11 is carried out direct control, can get rid of overspeed switch 11 action resistances.Therefore, compared with the existing, the error component of fluctuation etc. of the action force of overspeed switch 11 can be got rid of, the discountinuity (with reference to Figure 15 and Figure 16) of the operating effort of regulating mechanism 5 can be reduced.Above-mentioned technology especially to needs reduce the variation of centnifugal force, the regulating mechanism 5 that is not easy to adjust is effective.
In Fig. 1, the load point that is arranged on the cam roller 20 on the arm 21 is on the perpendicular line at the center of the S. A. 22 of cam 19, and the center of the arc 19a of cam 19 is consistent with the center of S. A. 22.In this case, because the deadweight of cam roller 20 and arm 21 is not sent to moment of rotation on the S. A. 22 by cam 19, therefore do not become the rotational resistance of S. A. 22.Therefore, the location independent of the rotation amount of the operating effort of overspeed switch 11 and cam 19 and arm 21 and changing continuously.And as mentioned above, because overspeed switch 11 is operated indirectly, therefore, the operating effort of overspeed switch 11 is to the action force not influence fully of regulating mechanism 5.
Like this,, therefore can further improve reliability, improve speed adjusting performance because the continuity of the action force of regulating mechanism 5 is held.
In addition, build to economize that following content is confirmed as obligation in No. the 2 the second, No. the 1423rd, the bulletin in 12 years putting down into, in case promptly overspeed switch 11 has carried out under the situation of work, the professional and technical personnel is after carrying out safety verification, manually carry out recovery operation, but the recoil owing to arm 21 is also arranged, self-restoring condition.
According to the present invention, utilize buffering absorber 37, can prevent the recoil of arm 21 really.In this case, for economical and simple in structure, or the consideration of self-righting possibility under the recoil of arm 21, the bump when 6 actions of wirerope clamp, as buffering absorber 37, preferably use low elastic rubber.
Below, by Fig. 6 and Fig. 7, describe with regard to modified example of the present invention.
Shown in Fig. 6 (a) and (b), make overspeed switch 11 work by arm 21 after, restoring with the mistake that prevents overspeed switch 11 is purpose, and ratchet (arm ratchet) 27 can be set around S. A. 17.This ratchet 27 is made of part 27b and part 27a, and part 27b is fixed on S. A. 17 sides; Part 27a is fixed on arm 21 sides, and part 27a, 27b pass through spring 28 by mutual extrusion, maintenance.Fig. 6 (a) is the birds-eye view of expression ratchet, and Fig. 6 (b) is its lateral plan.
Make the structure of overspeed switch 11 recoveries be, arm 21 is drawn before body, have only the gear of removing ratchet 27 just can restore, prevent the mistake recovery.
In addition, as the purpose identical, shown in Fig. 7 (a) and (b), also spring pin 29 can be set around S. A. 17 with the ratchet 27 shown in Fig. 6 (a) and (b).Fig. 7 (a) is before representing spring pin and the hole combining, and Fig. 7 (b) is the combination in expression spring pin and hole.
In modified example, after arm 21 rotations, overspeed switch 11 rotated to control position, the spring pin 29 that is installed in arm 21 sides was chimeric with the hole 38 that is installed in S. A. 17 sides.At this moment, if do not remove spring pin 29 and hole 38,21 on arm can not continue rotation.At this, constitute spring pin mechanism (arm spring pin mechanism) by spring pin 29 and hole 38.Spring pin 29 cost is set generally about the centre of buffering absorber 37 and ratchet 27.
As mentioned above, by rotation restraint mechanism 27,29,38 is set, can prevent that the mistake of overspeed switch 11 from restoring on arm 21.
Below, by Fig. 8 and Fig. 9, describe with regard to other modified examples of the present invention.
Shown in Fig. 8 (a) and (b), ratchet (cam ratchet) 32 can be set around S. A. 22.Ratchet 32 is made of part 32b that is fixed on rotation shaft side and the part 32a that is fixed on pedestal 33 sides, and part 32a, 32b pass through spring 34 by mutual extrusion, maintenance.At this, Fig. 8 (a) is the lateral plan of expression ratchet, and Fig. 8 (b) is the birds-eye view of expression ratchet.
In this modified example, though arm 21 recoil, because also hold-down arm 21 not of cam 19, so overspeed switch 11 non-restorings.When overspeed switch 11 is restored, so long as the gear that does not draw cam 19 to remove ratchet 32 before body just can not restore.
The action force of ratchet 32 can be less than the intensity of spring 34 and height, the angle of ratchet 32, as long as have the resistance of the reversing that can prevent cam 19.Therefore, by ratchet 32 is set, little to the successional influence of overspeed switch 11 operating efforts.
In addition, shown in Fig. 9 (a) and (b), similarly restore, the spring pin mechanism (arm spring pin mechanism) that is made of cam 35 and spring pin 36 also can be set for the mistake that prevents overspeed switch 11.
In Fig. 9 (a) and (b), with S. A. 22 bonded assembly cams 35 and cam 19 right-hand revolutions.When cam 19 rotations, cam roller 20 broke away from cam 19, arm 21 landing, the spring pin 36 that is arranged on base side 33 was chimeric with cam 35.After pin 36 and cam 35 were chimeric, cam 35 can continue right-hand revolution with cam 19, but can not be with the point of cam 19 anti-clockwise rotations, return arm 21 landing.Therefore, the mistake that can prevent overspeed switch 11 is restored.
In addition,, sliding resistance is become rotational resistance, the point of discontinuity of operating effort can be reduced to minimum by putting into ball etc. to the top of spring pin 36.
In addition, according to Figure 10, describe with regard to other modified examples of the present invention.To mode shown in Figure 5, represented following content at Fig. 1, bob-weight 30 promptly has been set on arm 21, can shorten length, the economy of arm 21 and save the space, still, be not limited only to this, as shown in figure 10, also can use spring 31 to replace bob-weight 30, increase the rotational force of arm 21.In Figure 10, can use extrusion spring 31 according to the space is set.Compare with the situation of using bob-weight 30, use spring 31 can increase the action force of arm 21 more.
Claims (7)
1. an elevator speed regulation mechanism is to make the overspeed switch of elevator and the elevator speed regulation mechanism that the wire clip pincers worker is done, and it is characterized in that having:
Governor connecting rod, this governor connecting rod have along with package elevator the governor wirerope pulley rotation and work;
Cam, this cam and this governor connecting rod interlock and rotation; And
Arm, this arm combines with this cam, and is rotated setting freely;
Rotation by above-mentioned arm makes above-mentioned overspeed switch work.
2. elevator speed regulation mechanism as claimed in claim 1 is characterized in that above-mentioned arm has the cylinder that combines with above-mentioned cam, and above-mentioned cylinder is positioned on the perpendicular line of centre of gration of above-mentioned cam.
3. elevator speed regulation mechanism as claimed in claim 1 is characterized in that also having:
Append cam, this appends cam and above-mentioned cam interlock and rotation; With
Append arm, this appends arm and the above-mentioned cam interlock that appends also rotates, and drives above-mentioned wirerope clamp;
By above-mentioned rotation of appending arm, make above-mentioned overspeed switch work freely.
4. elevator speed regulation mechanism as claimed in claim 1 is characterized in that, the buffering absorber is set near above-mentioned arm, contact when this buffering absorber works above-mentioned overspeed switch at above-mentioned arm.
5. elevator speed regulation mechanism as claimed in claim 1 is characterized in that, the arm ratchet device is set on the S. A. of above-mentioned arm, and when above-mentioned arm was worked above-mentioned overspeed switch, this arm ratchet device prevented the recovery of above-mentioned overspeed switch; Arm spring pin mechanism is set on above-mentioned arm, and when above-mentioned arm was worked above-mentioned overspeed switch, this arm spring pin mechanism prevented the recovery of above-mentioned overspeed switch; The cam ratchet device is set on the S. A. of above-mentioned cam, and when above-mentioned arm was worked above-mentioned overspeed switch, this cam ratchet device prevented the recovery of above-mentioned overspeed switch; The cam spring pin mechanism is set on above-mentioned cam, and when above-mentioned arm was worked above-mentioned overspeed switch, this cam spring pin mechanism prevented the recovery of above-mentioned overspeed switch.
6. elevator speed regulation mechanism as claimed in claim 1 is characterized in that, bob-weight is installed on arm, increases the rotational force of arm.
7. elevator speed regulation mechanism as claimed in claim 1 is characterized in that, mounting spring on arm, the rotational force of increase arm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003324908A JP4212997B2 (en) | 2003-09-17 | 2003-09-17 | Elevator speed control mechanism |
| JP324908/2003 | 2003-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597486A true CN1597486A (en) | 2005-03-23 |
| CN100352754C CN100352754C (en) | 2007-12-05 |
Family
ID=34455521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410078714 Expired - Fee Related CN100352754C (en) | 2003-09-17 | 2004-09-17 | Elevator speed regulation mechanism |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4212997B2 (en) |
| CN (1) | CN100352754C (en) |
| TW (1) | TWI270522B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052583A (en) * | 2010-08-06 | 2013-04-17 | 三菱电机株式会社 | Elevator speed governor |
| CN103935861A (en) * | 2014-04-24 | 2014-07-23 | 吴家集 | Safety pincer device of pneumatic type speed governor |
-
2003
- 2003-09-17 JP JP2003324908A patent/JP4212997B2/en not_active Expired - Fee Related
-
2004
- 2004-09-06 TW TW93126891A patent/TWI270522B/en not_active IP Right Cessation
- 2004-09-17 CN CN 200410078714 patent/CN100352754C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052583A (en) * | 2010-08-06 | 2013-04-17 | 三菱电机株式会社 | Elevator speed governor |
| CN103935861A (en) * | 2014-04-24 | 2014-07-23 | 吴家集 | Safety pincer device of pneumatic type speed governor |
| CN103935861B (en) * | 2014-04-24 | 2016-06-08 | 吴家集 | Pneumatic type limiter of speed safety tongs device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4212997B2 (en) | 2009-01-21 |
| JP2005089101A (en) | 2005-04-07 |
| TW200512150A (en) | 2005-04-01 |
| CN100352754C (en) | 2007-12-05 |
| TWI270522B (en) | 2007-01-11 |
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Granted publication date: 20071205 Termination date: 20150917 |
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| EXPY | Termination of patent right or utility model |