CN105565123A - Hoisting machine for elevator device - Google Patents
Hoisting machine for elevator device Download PDFInfo
- Publication number
- CN105565123A CN105565123A CN201510672300.9A CN201510672300A CN105565123A CN 105565123 A CN105565123 A CN 105565123A CN 201510672300 A CN201510672300 A CN 201510672300A CN 105565123 A CN105565123 A CN 105565123A
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- rope sheave
- cover
- driving rope
- lift appliance
- brake disc
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- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides a novel hoisting machine for an elevator device, the hoisting machine being capable of suppressing a reduction in a brake function of a brake mechanism due to oil mist by using a simple structure. In order to allow an air flow generated at the outer periphery of a drive rope sheave due to rotation of the drive rope sheave to flow toward an opposite side to a brake disc, a part of a rope sheave cover covering the drive rope sheave forms an air flow generating portion. According to the structure, the air flow generated by the air flow generating portion formed at the rope sheave cover can be used for discharging oil mist floating in the rope sheave cover to the opposite side of the brake disc, so as to suppress the adsorption of oil mist on the brake disc. In addition, as the air flow generating portion is formed to the rope sheave cover only, an extremely simple structure is therefore enabled.
Description
Technical field
The present invention relates to a kind of lift appliance winch used in lift appliance, especially relate to a kind of lift appliance winch possessing stop mechanism.
Background technology
In nearest lift appliance, constantly seek the moving velocity of quickening lift car and improve availability.Especially, the moving velocity accelerating lift car when being applied to high-rise becomes important problem.For this reason, for making the winch of lift car movement need to improve the rotative speed of self, lift car is moved at high speed.
But, be many roots rope twisted by will steel wire be comprised by around the core cord that the rope made of hemp is formed in order to make lift car be elevated by the hoist cable that winch reels, in order to lubricate in core cord containing being soaked with oil.Infiltration is dispersed towards periphery to the oil of core cord when passing through the driving rope sheave such as rope sheave, deflector sheave under the effect of centnifugal force, vibration.
Especially, recently, the motor miniaturization used to make winch and apply 2: 1 hoist cable canoes, the moving velocity of hoist cable becomes 2 times of the moving velocity of lift car, the trend increased of dispersing therefore in oil under the influence of centrifugal force.It should be noted that, dispersing of oil is not limited to 2: 1 hoist cable canoes, also produces in hoist cable canoe in addition.Can pollute when oil disperses around, therefore, such as, as the structure shown in Fig. 5, Fig. 6, propose the scheme utilizing cover to cover the driving rope sheave of winch.
In Fig. 5, Fig. 6, Reference numeral 10 represents the winch used in lift appliance, and on base station 11, electrical motor 12 and driving rope sheave 13 link via shaft stool 14A, and the rotation of electrical motor 12 is transmitted to driving rope sheave 13 thus.Driving the side contrary with electrical motor 12 of rope sheave 13 to be fixed with the brake disc 16 forming stop mechanism 15, this end is supported by shaft stool 14B.The brake shoe 17 that brake disc 16 is configured stop mechanism 15 applies braking.Be wrapping with in the periphery of the axis driving rope sheave 13 hoist cable 18 making lift car movement, separate the gap of regulation further in the periphery of this hoist cable 18 and be provided with the rope sheave cover 19 dispersed preventing oil.It should be noted that, rope sheave cover 19 is fixed on by bolt on base station 11.
So, utilize rope sheave cover 19 to cover the driving rope sheave 13 of winch 10, can prevent the oil dispersed as oil droplet from dispersing to the outside of rope sheave cover 19 thus, but in vaporific oil droplet (hereinafter referred to as the mist of oil) float in rope sheave cover 19 dispersed, take advantage of air stream such shown in arrow A and flow out from the driving periphery of rope sheave 13 and the clearance G of rope sheave cover 19.Then, when by drive rope sheave 13 rotation apply braking stop mechanism 15 be configured to drive rope sheave 13 close to time, likely cause following obstruction: from rope sheave cover 19 and the brake disc 16 driving the clearance G oil spill mist of rope sheave 13 to be attached to stop mechanism 15, the braking function of stop mechanism 15 is reduced.
And, in order to prevent the outflow of such mist of oil, in Japanese Unexamined Patent Publication 2004-203523 publication (patent documentation 1), propose there is following exhaust gear: setting has the opening for hoist cable discrepancy and seals the seal closure driving rope sheave, deflector sheave, and connect via link conduit the fan assembly that the air in sealing cover is exhausted, be provided with the filter that the air of discharging from fan assembly is purified further in the bottom of fan assembly.According to this structure, can prevent oil from peripheradly to disperse more reliably.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2004-203523 publication
The problem that invention will solve
But, be provided with in the winch of exhaust gear like that described in patent documentation 1, really fan assembly can be utilized to be sucked in the lump by the air in mist of oil and seal closure, therefore the possibility flowing out mist of oil to stop mechanism is reduced, but have to again to prepare to arrange for seal drive rope sheave, deflector sheave seal closure, for the fan assembly that is vented and link conduit etc., the new problem that the increase of the expense that the making producing seal closure, fan assembly, link conduit etc. brings, the increase of installation work-hour are such.In addition, the problem again needing the setting place of seal closure, fan assembly, link conduit etc., need the layout of change Machine Room so is also produced in the lump.
Summary of the invention
The object of the invention is to, a kind of novel lift appliance winch that simple structure can be utilized to reduce to the braking function of the stop mechanism suppressing mist of oil to cause is provided.
For solving the means of problem
The invention is characterized in, form air stream generating unit in a part for rope sheave cover, this air stream generating unit makes the air stream of the driving rope sheave periphery produced because driving the rotation of rope sheave be directed towards the side flowing contrary with brake disc.
Invention effect
According to the present invention, the air stream produced because of the air stream generating unit at the hood-shaped one-tenth of rope sheave can be utilized to be discharged to the side contrary with brake disc by the mist of oil swimming in rope sheave cover inside, suppress to adhere to mist of oil on the disc brake rotor.In addition, owing to only forming air stream generating unit on rope sheave cover, therefore, it is possible to become extremely simple structure.
Accompanying drawing explanation
Fig. 1 is the constructional drawing representing the brief configuration applying lift appliance of the present invention.
Fig. 2 is the constructional drawing of the structure representing the winch shown in Fig. 1.
Fig. 3 is the constructional drawing of the structure representing the winch becoming the first embodiment of the present invention.
Fig. 4 is the constructional drawing of the structure representing the winch becoming the second embodiment of the present invention.
Fig. 5 represents the existing constructional drawing possessing the structure of the winch of rope sheave cover.
Fig. 6 is a part sectional view part for the rope sheave cover of Fig. 5 being carried out to cutting.
Description of reference numerals:
10 ... winch, 11 ... base station, 12 ... electrical motor, 13 ... drive rope sheave, 14A, 14B ... shaft stool, 15 ... stop mechanism, 16 ... brake disc, 17 ... brake shoe, 21 ... wrapping portion, 22 ... outer circumferential side protrusion, 23 ... flange part, 24 ... fitting portion, 25 ... rope sheave cover, 25A ... inclined end portion, 25B ... vertical end, 26 ... air discharge orifice, 27 ... rope sheave cover, 27A, 27B ... vertical end, 27C ... tilting body portion, 28 ... air discharge orifice.
Detailed description of the invention
Below, use accompanying drawing to be described in detail to embodiments of the present invention, but the present invention is not limited to following embodiment, among technological concept of the present invention, various variation, application examples are also contained in scope of the present invention.
Before explanation embodiments of the present invention, the structure of application lift appliance of the present invention and winch thereof is briefly described.
First, the usual structure of application lift appliance of the present invention is described.Lift appliance is accommodated in the inside of the hoist trunk being located at building as known in the art.
In FIG, in lift appliance, usually in the Machine Room 110 of top section being formed at hoist trunk 100, load hoisting mechanism 120, be fixed on ground, Machine Room by fixed mechanism.Although hoisting mechanism 120 is not documented in FIG, there is the driving rope sheave for suspending many main hoist cables 130 in midair.Link with the upper end of counterbalanced weight 150 from the one end of the main hoist cable 130 driving rope sheave to extend via local derviation belt wheel 140, the upper end of the other end and lift car 160 links.
Next, the movement of each several part during running to lift appliance is described.When hoisting mechanism 120 operates and drives rope sheave to rotate, utilize main hoist cable 130 now and drive the friction between rope sheave to make to hang on and drive the main hoist cable 130 of rope sheave to move along driving the hand of rotation of rope sheave.And, counterbalanced weight 150 and lift car 160 oscilaltion is made by main moving of hoist cable 130.It should be noted that, though omit in FIG, in order to carry out the lifting of lift car 160 swimmingly, in the lift appliance of reality, becoming the structure utilizing the guide member that the is referred to as guide rail side to lift car 160 and counterbalanced weight 150 to guide.
In such lift appliance, utilize not shown controller to give operating instruction to the electrical motor, stop mechanism etc. forming hoisting mechanism 120, utilize this operating instruction to make lift car 160 carry out lifting action towards the regulation floor of building.More than simplify lift appliance to be described, but in fact also need additional various inscape.
Next, based on Fig. 2, the schematic configuration of hoisting mechanism 120 is described.In fig. 2, the winch 10 as the main composition key element of hoisting mechanism 120 has electrical motor 12, is fixed on the driving rope sheave 13 of axle drive shaft 20, stop mechanism 15 and a pair shaft stool 14A, 14B.This winch 10 is placed in base station 11, and on the not shown winch bearing beam playing function as mounting component of base station 11, mounting is fixing.It should be noted that, may not be winch bearing beam but the ground of formation Machine Room, as long as possess the function of the fixing base station 11 of mounting.
Next, electrical motor 12 and axle drive shaft 20 are described.Electrical motor 12 is arranged on base station 11, and the one end being fixed with the axle drive shaft 20 driving rope sheave 13 is installed as and can rotates by this electrical motor 12.Axle drive shaft 20 is supported as rotating by a pair shaft stool 14A, 14B.When electrical motor 12 is by driving, axle drive shaft 20 is rotated, makes driving rope sheave 13 rotate in linkage with the rotation of axle drive shaft 20.
Shaft stool 14A is motor side shaft stool, and shaft stool 14B is brake disc side shaft bearing, is supported by base station 11.The end of electrical motor 12 side axially of motor side shaft stool 14A supporting driving shaft 20.In addition, the side contrary with electrical motor 10 axially of brake disc side shaft bearing 14B supporting driving shaft 20 end and form the brake disc 16 of stop mechanism 15.It should be noted that, in the present embodiment, utilize motor side shaft stool 14A and these two shaft stools of brake disc side shaft bearing 14B to carry out supporting driving shaft 20, but also can be utilize a shaft stool to carry out the structure of supporting driving shaft 20.
Drive rope sheave 13 to be formed as drum, be formed with not shown through hole at the center of its axle.The size of the diameter of this through hole and the external diameter of axle drive shaft 20 is roughly equal.And, axle drive shaft 20 is run through and drives the through hole of rope sheave 13 and be fixed on driving rope sheave 13.The wrapping portion 21 being wrapping with main hoist cable 130 is formed driving the outer circumferential surface section of rope sheave 13.This wrapping portion 21 has the multiple hoist cable accommodating groove 21a for being wrapping with main hoist cable 130.By making driving rope sheave 13 rotate, the hoist cable accommodating groove 21a of wrapping portion 21 reels main hoist cable 130.In addition, be provided with outer circumferential side protrusion 22 in the end of electrical motor 12 side axially driving rope sheave 13, be provided with flange part 23 in opposition side.
Outer circumferential side protrusion 22 is formed in the axial end portion driving rope sheave 13, towards driving the protruding outside of the radial direction of rope sheave 13, becomes the diameter larger than the external diameter of the wrapping portion 21 driving rope sheave 12.Thereby, it is possible to prevent the main hoist cable 130 be wrapping with in wrapping portion 21 from coming off.
Flange part 23 is configured in the other end of the side contrary with electrical motor 12 side driving rope sheave 13, and this flange part 23 is towards driving the protruding outside of the radial direction of rope sheave 13.The external diameter of flange part 23 is formed as larger than the external diameter of outer circumferential side protrusion 22.Fitting portion 24 is provided with between this flange part 23 and the wrapping portion 21 of driving rope sheave 13.
In fitting portion 24, fix brake disc 16 by press-in, the external diameter of this fitting portion 24 is formed as larger than the diameter of outer circumferential side protrusion 22.In addition, the length of the axis of fitting portion 24 is formed as identical with the length of the axis of brake disc 16 or slightly long.So, brake disc 16 is made also to rotate integrally in linkage with the driving rope sheave 13 rotated by electrical motor 12.
Then, when in the not shown restraining coil being built in stop mechanism 15 during flow quantity control drive current, restraining coil is excited, brake shoe 17 is separated with brake disc 16 and becomes free state, drives rope sheave 13 to rotate under the effect of electrical motor 12, drives and carry out winding or the unwinding of main hoist cable 130.On the other hand, when controlling drive current and being interdicted, restraining coil demagnetization, under the effect of not shown retarding spring, brake shoe 17 is clamped brake disc 16 and produces braking force, stops the rotation driving rope sheave 13.
The winch 10 of said structure is known, therefore omits more detailed description.Next, with reference to accompanying drawing, embodiments of the present invention are described in detail.
[embodiment 1]
Next, Fig. 3 is used to be described in detail to the first embodiment of the present invention.In figure 3, the outer circumferential side of rope sheave 13 is being driven to be configured with rope sheave cover 25.Existing rope sheave cover 19 shown in the global shape of rope sheave cover 25 and Fig. 5 is similar, and installation method is secured by bolts in base station 11 also as in the pastly.
Rope sheave cover 25 axially extends driving the periphery of rope sheave 13, the vertical end 25B of brake disc 16 side inwards vertical warpage near the end driving rope sheave 13.Thus, between this vertical end 25B and the outer peripheral face of driving rope sheave 13, be formed with the clearance G of regulation.Vertical end 25B possesses and prevents from making because driving the rotation of rope sheave 13 function that oil disperses from hoist cable, the oil circled in the air now is attached to brake face, preferably shortens the length of clearance G as much as possible.But in order to avoid the contact with driving rope sheave 13, clearance G is necessary.Therefore, in existing rope sheave cover 19, create mist of oil and flow out along with air stream and be attached to the phenomenon of brake disc 16.
On the other hand, be formed with inclined end portion 25A in the end of electrical motor 12 side of rope sheave cover 25, inclined end portion 25A and existing rope sheave cover 19 relatively big difference.Inclined end portion 25A is formed in the side end face of electrical motor 12 side driving rope sheave 13, in this case crosses outer circumferential side protrusion 22 and extends to the end of the rope sheave cover 25 of electrical motor 12 side, then driving the side end face skew back of rope sheave 13 to warpage towards inner side.This inclined end portion 25A is formed in the angular range of regulation in the circumference driving rope sheave 13, such as, in the scope being formed in drive summit in the circumference of rope sheave 13 to be boundary and respective 90 °.Thus, in the present embodiment, in this scope of 90 °, be formed with the inclined end portion 25A of proper range.
Air discharge orifice 26 is formed in a part of inclined end portion 25A.In the present embodiment, be circumferentially formed with vertical region in a part of inclined end portion 25A, be circumferentially formed with multiple air discharge orifice 26 in this vertical region.Expecting that the end face of inclined end portion 25A is positioned at inner side as much as possible, at least not contacting with driving the side end face of rope sheave 13, and the oblique extension along inner side in the scope do not contacted with motor side shaft stool 14A.Thus, in the present embodiment, utilize inclined end portion 25A and air discharge orifice 26 to form air stream generating unit.
At this, driving rope sheave 13 to be configured to drum, therefore between the outer peripheral face side driving rope sheave 13 and the fixation side of axle drive shaft 20, be formed with spoke, producing air stream from driving the inner circumferential side of rope sheave 13 towards outer circumferential side by the rotation of spoke.
In structure so above, when driving rope sheave 13 to rotate, from the side end face of electrical motor 12 side driving rope sheave 13, air is flow into by the movement of spoke as shown in arrow A i and drive in rope sheave 13, leaked-in air flows further towards outer circumferential side.The air flowing to outer circumferential side is wanted to flow out from the side end face of electrical motor 12 side driving rope sheave 13 again, but in the region that inclined end portion 25A exists, utilizes inclined end portion 25A to obtain the air wanted from side end face outflow, make it flow out along inclined end portion 25A.
And the air flowed out along inclined end portion 25A has towards the directivity of air discharge orifice 26 (guided bone), therefore discharges from air discharge orifice 26 towards electrical motor 12 side.At this, the flow velocity when air from air discharge orifice 26 is discharged is very fast, therefore from the vertical end 25B of rope sheave cover 25 and drive the clearance G between the outer peripheral face of rope sheave 13 to flow into air and guide to air discharge orifice 26 side and flow and discharge.Thus, rope sheave cover 25 is swum in and drives the mist of oil between rope sheave 13 to take advantage of that this air stream is discharged from air discharge orifice 26.Thus, because mist of oil moves by air flow air discharge orifice 26 effluent, therefore, it is possible to suppress mist of oil to flow out from clearance G to brake disc 16 side.
In addition, because the end face only at rope sheave cover 25 forms the air stream generating unit be made up of inclined end portion 25A and air discharge orifice 26, therefore structure is extremely simple, the new problem that the increase of the expense that the making that can not produce seal closure, fan assembly, link conduit etc. as patent documentation 1 brings, the increase of installation work-hour are such.
[embodiment 2]
Next, Fig. 4 is used to be described in detail to the second embodiment of the present invention.In the diagram, the outer circumferential side of rope sheave 13 is being driven to be configured with rope sheave cover 27.Existing rope sheave cover 19 shown in the global shape of rope sheave cover 27 and Fig. 5 is similar, and installation method is secured by bolts in base station 11 also samely.
Rope sheave cover 27 axially extends driving the periphery of rope sheave 13, and the vertical end 27B of brake disc 16 side is inwards vertical warpage near the end driving rope sheave 13 similarly to Example 1.Thus, between this vertical end 27B and the outer peripheral face of driving rope sheave 13, be formed with the clearance G (not showing in the accompanying drawings) of regulation.Vertical end 27B also possesses the function being attached to brake face when preventing the oil from hoist cable from dispersing similarly to Example 1, preferably shortens the length of clearance G as much as possible.
In addition, the tilting body portion 27C of rope sheave cover 27 is configured to tilt in the mode towards electrical motor 12 skew back to expansion.And, from the warpage end 27A of end (end of the tilting body portion 27C) warpage of electrical motor 12 side of rope sheave cover 27 at the outer circumferential side warpage driving rope sheave 13, extend towards periphery protrusion 22 at this.Tilting body portion 27C and warpage end 27A is formed in the angular range of regulation in the circumference driving rope sheave 13, such as, be formed in drive summit in the circumference of rope sheave 13 for boundary and in the scope of respective 90 °.Form air discharge orifice 28 in a part of warpage end 27A, and expect that the end face of warpage end 27A is as much as possible close to outer circumferential side protrusion 22.
In structure so above, when driving rope sheave 13 to rotate, along with the rotation driving rope sheave 13, drive the air of outside face of rope sheave 13 towards radial flow as shown in arrow A i, along the tilting body portion 27C of rope sheave cover 27 inside face wall and guide to air discharge orifice 28 side and flow.Then, the air come along tilting body portion 27C flowing is discharged from air discharge orifice 28 towards electrical motor 12 side.
At this, because the inner wall surface of air along tilting body portion 27C flows facing to air discharge orifice 28, therefore air is flowed into from the clearance G between the vertical end 27B and the outer peripheral face of driving rope sheave 13 of rope sheave cover 27, this air is guided to air discharge orifice 28 and is flowed, and discharges afterwards from this air discharge orifice 28.Thus, swim in rope sheave cover 27 and drive the mist of oil between rope sheave 13 to take advantage of this air stream, discharge from air discharge orifice 28.Thus, due to mist of oil because air stream is discharged from air discharge orifice 28, therefore, it is possible to suppress mist of oil to flow out from clearance G to brake disc 16 side.
In addition, owing to only forming the air stream generating unit be made up of with the air discharge orifice 28 being located at warpage end 27A tilting body portion 27C at rope sheave cover 27, therefore structure is extremely simple, the new problem that the increase of the expense that the making that can not produce seal closure, fan assembly, link conduit etc. as patent documentation 1 causes, the increase of installation work-hour are such.
As mentioned above, according to the present invention, form air stream generating unit in the part covering the rope sheave cover driving rope sheave, to make the air stream of the driving rope sheave periphery produced because driving the rotation of rope sheave flow towards the side contrary with brake disc.According to this structure, the air-flow produced because of the air stream generating unit at the hood-shaped one-tenth of rope sheave can be utilized to be discharged to the side contrary with brake disc by the mist of oil swimming in rope sheave cover inside, thus suppress to adhere to mist of oil on the disc brake rotor.In addition, due to only in rope sheave hood-shaped one-tenth air stream generating unit, therefore, it is possible to become extremely simple structure.
Claims (7)
1. a lift appliance winch, it possesses: electrical motor, and it is driven based on operation instruction; Drive rope sheave, it rotates by described electrical motor, and the hoist cable that winding and lift car link; And stop mechanism, it comprises brake disc and brake shoe, and described brake disc is fixed with described driving rope sheave one and is positioned at the side contrary with described electrical motor, and described brake shoe applies braking to described brake disc,
It is characterized in that,
Described lift appliance winch arranges the rope sheave cover of the periphery covering described driving rope sheave, and be formed with air stream generating unit in a part for described rope sheave cover, described air stream generating unit makes the air stream of the driving rope sheave periphery produced because of the rotation of described driving rope sheave be directed towards the side contrary with described brake disc to flow.
2. lift appliance winch according to claim 1, is characterized in that,
The inclined end portion that described air stream generating unit is formed by the end at described rope sheave cover is formed, the end of described rope sheave cover is crossed the side end face of the described motor side of described driving rope sheave and extends to described motor side, described inclined end portion towards the side end face skew back of described driving rope sheave to warpage, and then is formed with air discharge orifice in a part for described inclined end portion.
3. lift appliance winch according to claim 2, is characterized in that,
Described inclined end portion along described driving rope sheave circumference and regulation angular range in formed, described air discharge orifice is circumferentially provided with multiple.
4. lift appliance winch according to claim 3, is characterized in that,
Described inclined end portion is formed with vertical region, is provided with described air discharge orifice in described vertical region.
5. lift appliance winch according to claim 1, is characterized in that,
Described air stream generating unit is made up of tilting body portion and the warpage end that formed in the end in described tilting body portion, described tilting body portion to be formed on described rope sheave cover and to tilt towards the mode of the oblique expansion of motor side, described warpage end towards the outer circumferential side warpage of described driving rope sheave, and then is formed with air discharge orifice in a part for described warpage end.
6. lift appliance winch according to claim 5, is characterized in that,
Described tilting body portion and described warpage end along described driving rope sheave circumference and formed in the angular range specified.
7. lift appliance winch according to claim 6, is characterized in that,
Multiple described air discharge orifice is circumferentially provided with in described warpage end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014222194A JP2016088653A (en) | 2014-10-31 | 2014-10-31 | Hoist for elevator device |
| JP2014-222194 | 2014-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105565123A true CN105565123A (en) | 2016-05-11 |
Family
ID=55875857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510672300.9A Pending CN105565123A (en) | 2014-10-31 | 2015-10-16 | Hoisting machine for elevator device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016088653A (en) |
| CN (1) | CN105565123A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018016072A1 (en) * | 2016-07-22 | 2018-01-25 | 三菱電機株式会社 | Cover and elevator |
| WO2020144800A1 (en) * | 2019-01-10 | 2020-07-16 | 三菱電機株式会社 | Wire rope lubrication device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286210A (en) * | 1999-08-26 | 2001-03-07 | 三菱电机株式会社 | Elevator unit |
| CN1486275A (en) * | 2001-11-08 | 2004-03-31 | 三菱电机株式会社 | Hoister and elevator apparatus |
| JP2004203523A (en) * | 2002-12-24 | 2004-07-22 | Mitsubishi Electric Corp | Oil scatter preventive device of elevator |
| CN102249138A (en) * | 2010-05-19 | 2011-11-23 | 株式会社日立制作所 | Elevator device |
-
2014
- 2014-10-31 JP JP2014222194A patent/JP2016088653A/en active Pending
-
2015
- 2015-10-16 CN CN201510672300.9A patent/CN105565123A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286210A (en) * | 1999-08-26 | 2001-03-07 | 三菱电机株式会社 | Elevator unit |
| CN1486275A (en) * | 2001-11-08 | 2004-03-31 | 三菱电机株式会社 | Hoister and elevator apparatus |
| JP2004203523A (en) * | 2002-12-24 | 2004-07-22 | Mitsubishi Electric Corp | Oil scatter preventive device of elevator |
| CN102249138A (en) * | 2010-05-19 | 2011-11-23 | 株式会社日立制作所 | Elevator device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016088653A (en) | 2016-05-23 |
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Application publication date: 20160511 |