CN203411196U - Speed controller of elevator - Google Patents
Speed controller of elevator Download PDFInfo
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- CN203411196U CN203411196U CN201320362470.3U CN201320362470U CN203411196U CN 203411196 U CN203411196 U CN 203411196U CN 201320362470 U CN201320362470 U CN 201320362470U CN 203411196 U CN203411196 U CN 203411196U
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Abstract
The utility model discloses a speed controller of an elevator. Grooves used for clamping a speed controller rope (10) are respectively formed in the opposite surfaces of a fixed side rope clamping piece (22) and a movable side rope clamping piece (24); the groove of the movable side rope clamping piece (24) is provided with a groove structure formed by compounding a first groove (60) and a second groove; the first groove (60) is formed at the initial contact part of the speed controller rope (10) at the lower part of the movable side rope clamping piece (24) and forms an initial contact part with larger friction on the speed controller rope (10); the second groove is formed at the part where the speed controller rope (10) is held by the movable side rope clamping piece (24) and the fixed side rope clamping piece (22) in parallel, and is of a shape with friction smaller than that of the first groove (60).
Description
Technical field
Embodiment of the present utility model relates to the governor of elevator.
Background technology
Emergency braking device is set in elevator as safety device, this in decree, undertake obligations (building standard method implement make the 129th 10).This emergency braking device is the work automatically prevent the device of the decline of car while having surpassed the value of defined of the descending speed at car.
At this, Fig. 9 means the figure of the schematic configuration of the general elevator that is provided with emergency braking device.
In Fig. 9, with reference to numbering 2, represent the car of elevator.The elevating road that represents elevator with reference to numbering 4.The main rope 5 of this car 2 use is sling, and is driven, while guide rail 6 guiding that are arranged at elevating road 4 are in the interior lifting of elevating road 4 by not shown winch.
In Machine Room, be provided with governor 8.In this governor 8, be provided with: the descending speed that detects car 2 reaches more than the speed of the value that has surpassed defined mechanism and reaches command speed at the descending speed of car 2 controls the rope clamping mechanism with the speed controller rope 10 of car 2 one walkings when above.
In car 2, be provided with the emergency stopper 12 that makes car 2 emergent stoppings.This emergency stopper 12 is to cut off or thereby the become descending speed of car 2 of abnormal elevator of the rotative speed of winch has reached command speed when above at main rope 5, and clamping guide-rail 6 makes mechanically emergent stopping device used of car 2.
Be wound in to speed controller rope 10 endless the rope sheave 14 being arranged on governor 8 and the pulley 15 that is configured in elevating road 4 bottoms.On pulley 15, suspention has weight 16.Speed controller rope 10 is via cable connections portion 17, link with making the safe connecting rod 18 of emergency stopper 12 work, and speed controller rope 10 is on the direction of the lifting with car 2 is equidirectional and with same speed walking.
In the emergency braking device of this elevator, governor 8 detect cars 2 decline during speed, by the rope clamping mechanism of following explanation, control speed controller rope 10 and its walking is stopped, consequently, safe connecting rod 18 makes emergency stopper 12 work, so can make car 2 emergent stoppings.
Next, Figure 10 is illustrated in the rope clamping mechanism in the past arranging in governor 8.In this rope clamping mechanism, the known mechanism that has patent documentation 1 to record for example.This rope clamping mechanism 20 is configured to be possessed: the fixation side rope that is fixed on base station 21 clamps piston shoes 22, and fixation side rope clamp 22 of piston shoes be equipped with speed controller rope 10 and with fixation side rope clamp piston shoes 22 opposed the drawer at movable side rope of configuration clamp piston shoes 24, this drawer at movable side rope is clamped to piston shoes 24 and give the fastening spring 26 of the hold of appointment, Jie keeps drawer at movable side rope to clamp the arm member 28 of piston shoes 24 by holding element 27 at front end, and shake the S. A. 30 that keeps freely this arm member 28.
The rearward end of arm member 28 and S. A. 30 axially connect S. A. 30 at right angles, and fix by jam nut 31.On S. A. 30, be provided with spring bracket 32a, 32b, fastening spring 26 is assemblied between spring bracket 32a, 32b, and under the effect of its elastic force, the direction that clamps piston shoes 24 to extruding drawer at movable side rope presses.
In this rope clamping mechanism 20, when the mistake speed of car 2 being detected by governor 8, arm member 28 falls down along the direction of arrow A of below, and drawer at movable side rope clamps piston shoes 24 and contacts with speed controller rope 10.
Now, speed controller rope 10 is walked in arrow B direction, and the drawer at movable side rope contacting with speed controller rope 10 clamps piston shoes 24 because friction force is further drawn in downwards.Speed controller rope 10 is finally fixed, and side rope clamps piston shoes 22 and drawer at movable side rope clamping piston shoes 24 are controlled, and the walking of speed controller rope 10 is stopped.
In a series of action of the rope clamping mechanism 20 as above, the mistake speed of car 2 detected, when drawer at movable side rope clamping piston shoes 24 contact with speed controller rope 10, it is very important by entering to fixation side rope clamping piston shoes 22 laybacks reliably that drawer at movable side rope clamps piston shoes 24.If be not drawn into, the speed controller rope 10 side rope that is not fixed clamps piston shoes 22 and drawer at movable side rope to clamp the result that piston shoes 24 control is that emergency stopper 12 is not worked.
Drawer at movable side rope clamps piston shoes 24 and contacts with speed controller rope 10, easily enters into the performance (following, to become and enter performance) of fixation side rope clamping piston shoes 22 opposed positions and have relation with following condition under the effect of its friction force.
In Figure 10, when drawer at movable side rope clamping piston shoes 24 contact with speed controller rope 10, between speed controller rope 10 and drawer at movable side rope clamping piston shoes 24, produce friction force f.This friction force f works as the power of drawing in drawer at movable side rope clamping piston shoes 24 downwards.
Now, drawer at movable side rope clamps piston shoes 24 and presses fastening spring 26, therefore, under the effect of the elastic force of compressed fastening spring 26, at drawer at movable side rope, clamps on piston shoes 24, and fastening spring power P works.If the composition of the direction vertical with speed controller rope 10 of fastening spring power P is Px, the composition of establishing the direction parallel with speed controller rope 10 is Py.If establishing the angle of arm member 28 is θ, and to establish friction coefficient be μ,
f＝μPx＝μPcosθ… （1）。
And, be that the composition that is greater than the direction parallel with speed controller rope 10 of fastening spring power P at friction force f is the situation of Py, be
f＞Py＝Psinθ …（2）
Condition situation about setting up.
Therefore, when (1) formula is updated to (2) formula, for
μPcosθ＞Psinθ
μ＞sinθ/cosθ＝tanθ… （3）。
According to (3) formula, for clamping piston shoes 24, drawer at movable side rope under the effect of friction force, is pulled into fixation side rope clamping piston shoes 22, as long as increase coefficientoffrictionμ or reduce speed controller rope 10 the angle θ of the arm member 28 while contacting with drawer at movable side rope clamping piston shoes 24, thus, can improve the performance that enters that drawer at movable side rope clamps piston shoes 24.
Patent documentation 1: TOHKEMY 2005-213037 communique
Yet when the material etc. that clamps piston shoes 24 by changing drawer at movable side rope increases friction coefficient, drawer at movable side rope clamps piston shoes 24 and uprises for the aggressiveness of speed controller rope 10, therefore only merely increases friction coefficient, the raising that enters performance is limited.
And, when for express elevator, for example operating speed divides this super high speed elevator over 300m/, the speed of travel of speed controller rope 10 also becomes at a high speed, and the value that the friction coefficient between drawer at movable side rope clamping piston shoes 24 and speed controller rope 10 occurs reduces this phenomenon.Only merely increase friction coefficient, cannot improve the performance that enters of high-speed domain.
And, in express elevator, after speed controller rope clamping mechanism 20 work, make before car 2 stops by emergency stopper 12, speed controller rope 10 is controlled the side rope that is fixed and is clamped piston shoes 22 and drawer at movable side rope and clamp state that piston shoes 24 control and slide.In the situation that friction coefficient is higher, the abrasion loss that exists fixation side rope to clamp the piston shoes part of piston shoes 22 and drawer at movable side rope clamping piston shoes 24 especially becomes large problem.
When the wearing and tearing quantitative change of piston shoes part is large, cannot be difficult to continue to produce stable hold with stroke (ス ト ロ ー Network) the compression fastening spring 26 of regulation, and then, easily cause the problems such as being failure to actuate of emergency stopper 12.For this reason, in high-speed elevator, need to take to make the stroke of fastening spring 26 to become large.
Due to this situation, can say, in order to improve drawer at movable side rope, clamp the performance that enters of piston shoes 24, compare with increase friction coefficient, comparatively it is desirable to the angle θ of the arm member 28 when reducing as much as possible drawer at movable side rope and clamping piston shoes 24 and contact with speed controller rope 10.
Yet, when reducing this angle θ and increasing the stroke of fastening spring 26 in order to obtain stable hold as described above, cannot avoid the whole maximization of governor.
Utility model content
Therefore, the utility model is made in view of the problem points that described prior art has, provide and can not make governor maximization, complicated, just can guarantee that drawer at movable side rope clamps the stable and failure-free entering of piston shoes, and can have the governor of the raising of this entering and the elevator of abrasion test concurrently.
In order to realize described object, the governor of elevator of the present utility model, possesses rope clamping mechanism, this rope clamping mechanism is when the descending speed that car detected has surpassed specified value, by fixation side rope clamping element, can take the drawer at movable side rope clamping element of front end of the arm member that S. A. rotates as fulcrum and control speed controller rope with being fixed on, in the governor of this elevator, on described fixation side rope clamping element and described drawer at movable side rope clamping element opposed, be formed with respectively the groove that sandwiches described speed controller rope, the groove of described drawer at movable side rope clamping element has the groove structure that the 1st groove and the 2nd groove are composited, the 1st groove is formed on the initial part contacting of described speed controller rope of the bottom of described drawer at movable side rope clamping element, and be formed with the initial contact part larger to the friction force of described speed controller rope, the 2nd groove is formed on the part that described drawer at movable side rope clamping element and described fixation side rope clamping element are controlled described speed controller rope abreast, and be that friction force is than the little shape of described the 1st groove.
In addition, in the governor of elevator of the present utility model, the groove of described drawer at movable side rope clamping element possesses the 1st groove and the 2nd groove, the 1st groove consists of by grooving and with the continuous lower cutting of U groove the bottom at described drawer at movable side rope clamping element, and the 2nd groove consists of the described U groove with the groove face of section U-shaped.
In addition, in the governor of elevator of the present utility model, in the situation that the speed of the car of elevator is at a high speed, widened accordingly the groove width of described lower cutting with the speed of described car.
In addition, in the governor of elevator of the present utility model, the groove of described drawer at movable side rope clamping element possesses the 1st groove and the 2nd groove, the 1st groove consists of by grooving and with the continuous V groove of U groove the bottom at described drawer at movable side rope clamping element, and the 2nd groove consists of the described U groove with the groove face of section U-shaped.
Accompanying drawing explanation
Fig. 1 means the block diagram of the governor of application elevator of the present utility model.
Fig. 2 is the front view of the governor of same elevator.
Fig. 3 means the block diagram of the drawer at movable side rope clamping element that the governor of the elevator that the 1st embodiment of the present utility model relates to possesses.
Fig. 4 A and Fig. 4 B control the fixation side clamping piston shoes of speed controller rope and the instruction diagram that drawer at movable side clamps the action of piston shoes.
Fig. 5 means the block diagram of the drawer at movable side rope clamping piston shoes that the governor of the elevator that the 1st embodiment of the present utility model relates to possesses.
Fig. 6 is the birds-eye view that the drawer at movable side rope of Fig. 5 clamps piston shoes.
Fig. 7 means the birds-eye view of the drawer at movable side rope clamping piston shoes that the governor of the elevator that the 2nd embodiment of the present utility model relates to possesses.
Fig. 8 means the birds-eye view of the drawer at movable side rope clamping piston shoes that the governor of the elevator that the 3rd embodiment of the present utility model relates to possesses.
Fig. 9 is the summary description figure that the elevator of elevator speed governor is set.
Figure 10 means the lateral plan of the clamping mechanism of the speed controller rope in the past arranging in the governor of elevator.
The specific embodiment
The embodiment of the governor of the elevator with reference to accompanying drawing, the utility model being related to below, describes.
The 1st embodiment
Fig. 1 means the block diagram of the governor of the elevator that the 1st embodiment of the present utility model relates to, and Fig. 2 is the front view of this governor.
In Fig. 1, Fig. 2, with reference to numbering 40, represent to arrange the base station of governor 8 main bodys, the 41st, the leg of base station.On base station 40,2 tabular framework 42A, 42B separate abreast appointed interval and are vertically arranged.Between this framework 42A, 42B, rope sheave 44 is supported by S. A. 45.On rope sheave 44, be wound with speed controller rope 10.
On rope sheave 44, be provided with rotating weight 46, this rotating weight 46 and rope sheave 44 interlock rotations, and expand under the effect of centnifugal force.The action of the expansion of this rotating weight 46 is adjusted spring 48 by speed and is adjusted, and adjusts the adjustment of spring 48 by this speed, can set the rotative speed of the rope sheave 44 while being rotated the action that weight 46 opens.
On governor 8, be provided with limit switch 50, thereby be opened to while running into test rod 51 at the speed rotating weight 46 that speed controller rope 10 reaches appointment, limit switch 50 becomes connection (on).This signal is sent to control panel, and the main power source of elevator is cut off.
Then, car continue to decline, and when the rotative speed of the rope sheave 44 rotating together with the walking of speed controller rope 10 further increases, rotating weight 46 further expands under the effect of centnifugal force, makes rope clamping mechanism 20 work as follows.
So, to being arranged at the rope clamping mechanism 20 of governor 8, describe.This rope clamping mechanism 20 is configured to and comprises: be fixed on below the fixation side rope clamping element 22(of base station 40, be called fixation side rope and clamp piston shoes 22) and have below drawer at movable side rope clamping element 24(, be called drawer at movable side rope and clamp piston shoes 24) movable rope clamping element assembly 23, this drawer at movable side rope clamping element 24 and fixation side rope clamp 22 of piston shoes be equipped with speed controller rope 10 and with fixation side rope clamp piston shoes 22 opposed configuration.
Fig. 3 means the block diagram of the structure of movable rope clamping element assembly 23.Fastening spring 26 is drawer at movable side rope to be clamped to piston shoes 24 give the spring of the hold of appointment.Drawer at movable side rope clamps piston shoes 24 Jie and by holding element 27, is held in the front end of arm member 28.This arm member 28 is shaken freely and is supported by S. A. 30.The rearward end of this arm member 28 and S. A. 30 axially connect S. A. 30 at right angles, and by jam nut 31 anticreeps fixing.On arm member 28, be provided with spring bracket 32a, 32b, fastening spring 26 is assemblied between spring bracket 32a, 32b, the direction to extruding drawer at movable side rope clamping piston shoes 24 under the effect of this elastic force presses.
In this rope clamping mechanism 20, when detecting the mistake speed of car 2 by governor 8, such, movable rope clamping element assembly 23 falls down along the direction of arrow A of below as shown in Figure 4 A, and drawer at movable side rope clamps piston shoes 24 and contacts with speed controller rope 10.
Now, speed controller rope 10 is walked in arrow B direction, the drawer at movable side rope contacting with speed controller rope 10 clamps piston shoes 24 and is further drawn in downwards under the effect of friction force, as shown in Figure 4B, the speed controller rope 10 side rope that is finally fixed clamps piston shoes 22 and drawer at movable side rope and clamps piston shoes 24 and control, the walking of speed controller rope 10 is stopped.
At this, Fig. 5 means that drawer at movable side rope clamps the block diagram of piston shoes 24, and Fig. 6 means the birds-eye view that clamps the groove shape forming on piston shoes 24 at drawer at movable side rope.
On drawer at movable side rope clamping piston shoes 24, being formed with protuberance is the rope holding portion 56 of platform shape.In this rope holding portion 56, be alongst formed with U groove 58.This U groove 58 is the grooves with the section U font of width that speed controller rope 10 can be absorbed in and the degree of depth.In addition, be formed with upper angled face 57a, lower beveled 57b in rope holding portion 56, U groove 58 is continuous till playing lower beveled 57b from upper angled face 57a.
In this embodiment, on lower beveled 57b, in the direction identical with U groove 58, cut out the lower cutting 60 with the width narrower than the width of U groove 58.As shown in Figure 6, in the part of lower beveled 57b, lower cutting 60 overlaps with U groove 58 and forms two kinds of grooves structures that variform groove is compound, thus, has formed the portion that enters of speed controller rope 10.In the case, lower end at U groove 58, become and to cut out the bottom land of the U groove 58 that the mode of lower beveled 57b extending, deeper cutting out the shape of lower cutting 60, so in lower cutting 60, cut out the both sides of the part of U groove 58 bottom lands, be formed with narrowed width initial contact surface 62a, 62b.
Present embodiment is the structure forming as described above, next, its effect and effect is described.
When detecting the mistake speed of car 2 by governor 8, such, movable rope clamping element assembly 23 falls down along the direction of arrow A of below as shown in Figure 4 A, and drawer at movable side rope clamps piston shoes 24 and contacts with speed controller rope 10.
In drawer at movable side rope clamps piston shoes 24, following like that, along with pouring action progress into, the groove shape of the part contacting with speed controller rope 10 changes.
That is, in drawer at movable side rope clamps piston shoes 24, the part contacting with speed controller rope 10 at first in Fig. 6, be positioned at below rope holding portion 56, be positioned at initial contact surface 62a, the 62b of both sides that lower cutting 60 has cut out the part of U groove 58.When the contact of speed controller rope 10 starts, so that the less friction coefficient of area of contact becomes is large, the therefore larger friction force of generation from the starting stage of contact.This friction force works as the power of more strongly drawer at movable side rope clamping piston shoes 24 being drawn in, so can make movable rope clamping element assembly 23 integral body pour into reliably.
Soon, when drawer at movable side rope clamping piston shoes 24 become with parallel the pouring into completely before of fixation side rope clamping piston shoes 22, speed controller rope 10 is to be trapped in the state of U groove 58, and the side that is fixed rope clamps piston shoes 22 and drawer at movable side rope clamps piston shoes 24 clampings.Now, the area of contact of the speed controller rope 10 in U groove 58 is larger, and correspondingly, abrasion resistance properties significantly improves the amount therefore reducing with friction force, thereby can alleviate the wearing and tearing that the slip of speed controller rope 10 causes.
Like this, it is less than lower cutting 60 that the friction coefficient of U groove 58 becomes, so the performance that enters that drawer at movable side rope clamps piston shoes 24 is wanting in, but abrasion test aspect is good.Otherwise lower cutting 60 and drawer at movable side rope clamp piston shoes 24 and compare, abrasion test is wanting in, but drawer at movable side rope clamp piston shoes 24 to enter aspect of performance good.
In the present embodiment, really at the beginning of the contact that becomes necessary at entering, speed controller rope 10 be positioned at lower cutting 60 incision initial contact surface 62a, the 62b of part contact, drawer at movable side rope clamp entering of piston shoes 24 complete after, in order to suppress wearing and tearing, speed controller rope 10 contacts with the groove face of U groove 58.Like this, by U groove 58 and lower cutting 60 combinations, so that the frictional behavior of contact portion changes corresponding to starting the stage of being controlled to quilt after contact.
Like this, rope clamping mechanism itself is constant, by having applied flexibly time cutting 60, constructs with the groove of the strong point of the characteristic of U groove 58, and that can realize that drawer at movable side rope clamps piston shoes 24 enters having concurrently of performance and abrasion test.
The 2nd embodiment
Next, with reference to Fig. 7, the 2nd embodiment of the present utility model is described.In addition,, for the identical structural element of the Fig. 6 with the 1st embodiment, mark identical reference marks and omit its detailed explanation.
The 2nd embodiment is compared with the lower cutting 60 that the drawer at movable side rope shown in Fig. 6 clamps piston shoes 24, is with respect to U groove 58, relatively to widen the embodiment of the groove width of lower cutting 70.For example, in the situation that the diameter of speed controller rope 10 is 8mm, making the groove diameter of U groove 58 be similarly 8mm, is 6mm but make the groove width of lower cutting 70.
In the situation that the speed of car is to have surpassed the such hyper-velocity elevator of 300m/min, friction force when speed controller rope 10 contacts with lower cutting 70 due to its faster speed reduce.In this embodiment, in order to ensure drawer at movable side rope, clamp the performance that enters of piston shoes 24, corresponding to the speed of car, by the width widen of lower cutting 70.Thus, become less with the area of contact of speed controller rope 10, and can guarantee necessary friction force.
The 3rd embodiment
Next, with reference to Fig. 8, the 3rd embodiment of the present utility model is described.The reference marks identical with Fig. 6 represents identical structural element.
The 3rd embodiment is different from the 1st embodiment and the 2nd embodiment, is the embodiment that the V groove 80 that forms section V font replaces lower cutting 60,70.In the 3rd embodiment, lower end at U groove 58, also become and to cut out the bottom land of the U groove 58 that the mode of lower beveled 57b extends, deeper cutting out the shape of V groove 80, so at V groove 80, cut out the both sides of part at the end of U groove 58, be formed with narrowed width initial contact surface 62a, 62b.
In this V groove 80, as shown in Figure 8, the contact of the speed controller rope 10 at initial contact surface 62a, 62b place contacts close to the less line of area of contact, so can obtain larger friction force.For this reason, really at the beginning of the contact necessitating at entering, speed controller rope 10 with incision at V groove 80 initial contact surface 62a, the 62b of part contact, drawer at movable side rope clamp entering of piston shoes 24 complete after, in order to suppress wearing and tearing, can make speed controller rope 10 contact with the groove face of U groove 58.
Above, embodiment of the present utility model has been described, but these embodiments enumerate as illustration, intention does not lie in the scope of restriction utility model.Certainly, new device, method and system that specification sheets is recorded can be implemented in every way, and, within not departing from the scope of purport of the present utility model, can carry out various omissions, displacement, change.The scope of claim and equivalent thereof covers embodiment or its improvement thing in the scope of the purport of utility model.
Claims (4)
1. a governor for elevator, is characterized in that,
Possesses rope clamping mechanism, this rope clamping mechanism is when the descending speed that car detected has surpassed specified value, by fixation side rope clamping element be fixed on and can take the drawer at movable side rope clamping element of front end of the arm member that S. A. rotates as fulcrum and control speed controller rope
In the governor of this elevator,
On described fixation side rope clamping element and described drawer at movable side rope clamping element opposed, be formed with respectively the groove that sandwiches described speed controller rope, the groove of described drawer at movable side rope clamping element has the groove structure that the 1st groove and the 2nd groove are composited, the 1st groove is formed on the initial part contacting of described speed controller rope of the bottom of described drawer at movable side rope clamping element, and be formed with the initial contact part larger to the friction force of described speed controller rope, the 2nd groove is formed on the part that described drawer at movable side rope clamping element and described fixation side rope clamping element are controlled described speed controller rope abreast, and be that friction force is than the little shape of described the 1st groove.
2. the governor of elevator as claimed in claim 1, is characterized in that,
The groove of described drawer at movable side rope clamping element possesses the 1st groove and the 2nd groove, and the 1st groove consists of by grooving and with the continuous lower cutting of U groove the bottom at described drawer at movable side rope clamping element, and the 2nd groove consists of the described U groove with the groove face of section U-shaped.
3. the governor of elevator as claimed in claim 2, is characterized in that,
In the situation that the speed of the car of elevator is at a high speed, widened accordingly the groove width of described lower cutting with the speed of described car.
4. the governor of elevator as claimed in claim 1, is characterized in that,
The groove of described drawer at movable side rope clamping element possesses the 1st groove and the 2nd groove, and the 1st groove consists of by grooving and with the continuous V groove of U groove the bottom at described drawer at movable side rope clamping element, and the 2nd groove consists of the described U groove with the groove face of section U-shaped.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013047242A JP5513646B1 (en) | 2013-03-08 | 2013-03-08 | Elevator governor |
| JP2013-047242 | 2013-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203411196U true CN203411196U (en) | 2014-01-29 |
Family
ID=49974102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320362470.3U Expired - Lifetime CN203411196U (en) | 2013-03-08 | 2013-06-24 | Speed controller of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5513646B1 (en) |
| CN (1) | CN203411196U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5627050B1 (en) * | 2013-09-03 | 2014-11-19 | 東芝エレベータ株式会社 | Elevator governor |
| CN112340565B (en) * | 2020-11-25 | 2022-04-26 | 南京博寰机电设备有限公司 | Elevator maintenance transmission device based on Internet of things |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316761Y2 (en) * | 1973-09-21 | 1978-05-04 | ||
| JPS6031751B2 (en) * | 1980-07-24 | 1985-07-24 | フジテック株式会社 | Governor for elevators |
| JP2004211888A (en) * | 2002-12-24 | 2004-07-29 | Inventio Ag | Brake-shoe for braking cable |
| JP2005213037A (en) * | 2004-02-02 | 2005-08-11 | Toshiba Elevator Co Ltd | Speed governor for elevator |
-
2013
- 2013-03-08 JP JP2013047242A patent/JP5513646B1/en active Active
- 2013-06-24 CN CN201320362470.3U patent/CN203411196U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP5513646B1 (en) | 2014-06-04 |
| JP2014172724A (en) | 2014-09-22 |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140129 |