CN101074076B - Emergency braking device for elevator and elevator - Google Patents
Emergency braking device for elevator and elevator Download PDFInfo
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- CN101074076B CN101074076B CN2007101011821A CN200710101182A CN101074076B CN 101074076 B CN101074076 B CN 101074076B CN 2007101011821 A CN2007101011821 A CN 2007101011821A CN 200710101182 A CN200710101182 A CN 200710101182A CN 101074076 B CN101074076 B CN 101074076B
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Abstract
Providing a emergency braking device for elevator and elevator, a frictional part is fixed in a braking piece firmly to improve the reliability of stopping elevator car when emergency braking. In the mentioned emergency braking device, the braking piece (5) compresses the guide rail (2) to generate braking force when occurring emergency so as to stop the elevator car (1). The mentioned device includes frictional part (12) which has the shape to resects part of cylinder to form planar excision surface (15a); braking piece (5) , which clips the guide rail (2) through keeping the support part (5a) of the frictional part (5); elastomer (6) , which compresses the braking piece (5) on the guide rail (2). The frictional part (12) sets that its cylindrical end face is compressed on the guide rail (2), and the excision surface (15a) is parallel to the lifting direction of the elevator car (1).
Description
Technical field
The present invention relates to a kind of brake shoe for elevator emergency stop and elevator, especially relate to a kind of elevator that is suitable for when elevator speed surpasses specified speed, making the brake shoe for elevator emergency stop action.
Background technology
The safety device, the emergency braking apparatus that when the descending speed of lift car surpasses certain speed, lift car are stopped in obligated setting on the elevator with suitable deceleration/decel.
Emergency braking apparatus is the brake component that inboard that a kind of use is surrounded by elastic body is provided with 2 trapezoidal friction means, when the speed of lift car surpasses certain speed, push the guide rail for elevator that is arranged on the hoist trunk wall with 2 brake components, the power that utilization produces by elastic deformation produces the brake equipment of braking force, all the time, brake component constitutes by materials such as cast iron with suitable friction coefficient and resistance to abrasion or copper class sintered alloies.
, in recent years, along with building develops towards superelevation stratification direction, the tendency of high speed and high capacity has appearred on the specification of elevator.Aspect emergency braking apparatus, though then require emergency braking apparatus at glancing impact because of forming under the hi-heat state at the friction heat that produces between brake component and the guide rail, still have stable friction force.
For example open in flat 10-No. 182031 communiques and disclose a kind of technology the patent of invention spy of Japan of patent documentation 1, in this technology, in order still to obtain stable braking characteristics at a high speed and under the high-capacity condition, use the ceramic friction means of excellent heat resistance, this friction means is formed the polygonal column that chamfered has been implemented in cylindric or bight, and this friction means is to be embedded in the brake component body from the outstanding mode of brake component body surface.
And, for example open in 2000-No. 191252 communiques and disclose a kind of technology the patent of invention spy of Japan of patent documentation 2, in this technology, in order to prevent that the one-sided phenomenon that contacts of brake component and guide rail from producing, bury the brake plate (friction means) of ceramic underground in the brake surface side of brake component body, make it outstanding from this brake surface, and bury the circle that the part setting is made of soft metal underground at this, push circumferential several positions with drift, the circle that soft metal is constituted produces local deformation, with this brake plate is fixed.
The patent of invention spy of patent documentation 1-Japan opens flat 10-No. 182031 communiques
The patent of invention spy of patent documentation 2-Japan opens communique 2000-No. 191252
In above-mentioned conventional art, when accident brake moves, in the sliding surface of friction means, can produce uneven pressing force, thereby might occur, and cause to suppress the situation that friction means rotates because of rotational force acts on the friction means.That is to say, when the rotational force that causes because of friction force surpasses the confining force of the friction means of fixing in the riveted joint mode, can cause the friction means rotation, and can't guarantee to act on the friction force between friction means and the guide rail, thereby can't obtain suitable deceleration/decel.Especially, when causing loading further increase along with the increase of whereabouts quality, need correspondingly increase braking force, so, the pressing force difference in the sliding surface of friction means further strengthens, thereby is difficult to suppress the rotation of friction means more.
And, the guide rail cutting powder that glancing impact produces, the method to set up according to friction means exerts an influence to friction force sometimes.Specifically, when the cutting powder is trapped in the brake component, the heat of sliding will be delivered on the support component of brake component via the cutting powder, make support component produce thermal deformation, thereby cause friction means can't with the guide rail uniform contact, cause friction force to descend thus.
Summary of the invention
The objective of the invention is to solve the problem that exists in the above-mentioned conventional art, high brake shoe for elevator emergency stop of a kind of reliability and elevator are provided, in this emergency braking apparatus, the friction means that is embedded in the brake component is fixed firmly, can lift car be stopped when emergency braking.
To achieve these goals, in a kind of brake shoe for elevator emergency stop of the present invention, when unusual the generation, make brake component by being pressed on the guide rail to produce braking force, thereby the lift car of elevator is stopped, wherein, this brake shoe for elevator emergency stop has: friction means, this friction means have the shape that the part excision of cylinder is formed with plane excision face; Described brake component, it clamps described guide rail by the support component that keeps described friction means; And elastic body, by being pressed on the described guide rail, described friction means is configured to this brake component for it, and the end face of its cylinder is pressed against on the described guide rail, and described excision face is parallel with the lifting direction of described lift car.
According to the present invention, can access the high brake shoe for elevator emergency stop of a kind of reliability, in this device, even there is the out-of-position braking force to act on the friction means as brake plate, friction means can not rotate yet, thereby can guarantee the friction force stipulated, when emergency braking, can lift car be stopped.
Description of drawings
Fig. 1 is the block diagram of the lift car of the elevator in the one embodiment of the present invention;
Fig. 2 is the front elevation of the emergency braking apparatus of presentation graphs 1;
Fig. 3 is the partial perspective view of the emergency braking apparatus of Fig. 2;
Fig. 4 is the block diagram of the brake component that emergency braking apparatus had of Fig. 2;
Fig. 5 be expression in one embodiment friction means and supporter between the partial perspective view that concerns;
Fig. 6 is the instruction diagram that acts on the moment of rotation on the friction means in the embodiment;
Fig. 7 is the diagram of curves that the moment of rotation in the embodiment and hold torque are compared;
Fig. 8 is the instruction diagram that acts on the stress on the friction means in the embodiment;
Fig. 9 is the block diagram of the brake component in another embodiment of expression;
Figure 10 is the lateral plan of the friction means in another embodiment of expression;
Figure 11 is the lateral plan of the friction means method to set up in expression one embodiment;
Figure 12 is the lateral plan of the friction means method to set up in another embodiment of expression.
Nomenclature
1 lift car
2 guide rails
4 emergency braking apparatus
5 brake components
The 5a supporter
6 elastic bodys
8 directing plates
10 guide members
12,17 friction means
15a excises face
19 shrinkage pools
The specific embodiment
Followingly brake shoe for elevator emergency stop involved in the present invention is described with reference to accompanying drawing.
Fig. 1 is the lift car 1 that has of elevator and the block diagram that is installed in the emergency braking apparatus of lift car 1 bottom, and the lift car 1 that is used to carry the passenger is connected with the not shown drive system that is arranged on the building the superiors by hoist cable 3.In this figure,, omitted the detailed icon of elevator door opening-closing equipment and housing for the ease of understanding.
In the both sides of hoist trunk, be provided with when lifting pair of guide rails 2 to lift car 1 channeling conduct.Be provided with a pair of emergency braking apparatus 4 in the bottom of lift car 1, this a pair of emergency braking apparatus is clamped the vertical rail bar of T font of each the bar guide rail 2 that is formed T font section shape.Described a pair of emergency braking apparatus 4 is connected by not shown bindiny mechanism.
Fig. 2 is the longitudinal sectional drawing of emergency braking apparatus, and among the figure, emergency braking apparatus is center left and right symmetrically setting with the guide rail.Emergency braking apparatus 4 has and is formed section and is trapezoidal a pair of brake component, and the upper end side of brake component 5 is a minor face, and lower end side is long limit.
But a pair of brake component 5 is configured to clamping guide rail 2, has tiny gap between this a pair of brake component and the guide rail, and with guide rail 2 almost parallels.The back side of brake component 5 is the level and smooth dip plane that are the narrow more wedge shape in past more top.
Directing plate 8 to mobile channeling conduct is set on guide member 10, makes brake component 5 can move to the position of regulation.The inboard of guide member 10 forms the dip plane parallel with the dip plane of brake component 5, and its outside is a vertical surface, and this vertical surface is surrounded by elastic body 6.The peripheral part of guide member 10 is surrounded by elastic body 6, and wherein, this elastic body is formed the U font, and its side relative with guide rail 2 is open shape.Brake component 5, directing plate 8, guide member 10 and elastic body 6 are housed in the framework 9, and an end of brake component is connected with the not shown bar of mentioning that driver element had that is used to emergency braking apparatus is started.
Fig. 3 represents the operating state of emergency braking apparatus.A plurality of guide reels 11 are pressed against on the dip plane of brake component 5.Guide reel 11 rotatably remains on the guide member 10, and under the effect of guide member 10, brake component can successfully move towards the top.
Fig. 4 is the schematic appearance of brake component.Brake component 5 has the supporter 5a of the quadrangular prism shape that is made of cast iron and is bonded on the many friction means 12 of the guide rail opposite face side of supporter 5a (be 4 in the present embodiment, be arranged in 2 row).Friction means 12 is made of the grand contour performance pottery of silicon nitride, carborundum, aluminium oxide and match.Engage the mode that for example adopts shrink fit between friction means 12 and the supporter 5a, carry out from the mode of the outstanding 1～3mm in brake component surface with the friction means leading section.Friction means 12 slides on guide rail 2.
Fig. 5 is the block diagram when taking the supporter 5a of brake component 5 and friction means 12 apart.Friction means 12 is the shape that cylinder is cut off a part, this excision face 15a be rectangle (hereinafter referred to as the D font).That is, friction means 12 has the shape that the excision of the part of cylinder is formed with plane excision face.
Chamfered has been implemented in the end 14 of the end 13 of the sliding surface that slides on guide rail 2 and excision face.And, the end 18a of excision face, 18b has also implemented chamfered.Its objective is in order to relax the phenomenon of the stress concentration that this end 18a (or 18b) produces because of the rotational force that bears friction means. End 18a, 18b also can be arranged to level and smooth curved surface.
On brake component 5, for example be formed with the shrinkage pool 19 that is used for keeping friction means 12 with shrink fit by electro-discharge machining.The shape of this shrinkage pool 19 is identical with the shape of friction means 12, is D font shape.And be on the same position by the chimeric excision face 15b of shrinkage pool 19 and the excision face 15a of friction means 12 of making.
The length L 1 of the excision face 15a of friction means 12 is longer slightly than the length L 2 of the excision face of the shrinkage pool 19 of supporter 5b.In other words, the width L3 of the cutting side of the sliding surface of friction means 12 is narrower slightly than the width L4 of the shrinkage pool 19 of supporter 5b.Its reason is when friction means 12 is carried out shrink fit, friction means is firmly held on the periphery of supporter 5a.
By friction means being held in above-mentioned shape, prevent that friction means from coming off and rotate.And this excision face 15a, 15b are set at the position with the lifting direction of lift car, friction means 12 slides along guide rail 2 when being the emergency braking apparatus action direction of slip almost parallel.That is to say that friction means has the shape that the excision of the part of cylinder is formed with plane excision face, and friction means is configured to, the end face of its cylinder is pressed against on the guide rail 2, and its excision face 15a is parallel with the lifting direction of lift car.
When the moving velocity of lift car 1 surpasses command speed and when reaching setting speed, is arranged on top not shown speed detector action, and the not shown speed controller rope that links to each other with emergency braking apparatus 4 of seizure.Speed controller rope with mention bar 29 and be connected, mentioning bar 29 is connected with brake component 5, with respect to the emergency braking apparatus 4 on the lift car 1 that is installed in the whereabouts, brake component 5 is relatively up mentioned, and clamp guide rail 2 on the lifting channel wall that is arranged on lift car 1 both sides, simultaneously, the elastic body 6 of the U font that is provided with in the mode of surrounding brake component 5 opens and produces elastic deformation, make thus between guide rail 2 and the brake component 5 and produce friction force, lift car 1 is stopped.
After the friction means 12 of brake component 5 was connected to guide rail 2, brake component moved on the sliding surface of guide rail 2 in the mode that the edge of each friction means 12 slightly cuts guide rail 2 sliding surfaces.Its result produces cutting resistance on the guide rail 2, and this cutting resistance plays the effect of friction force.Therefore, produce cutting resistance in order to make on the guide rail 2, the edge of friction means 12 is preferably sharper keen.,, then can when butt, produce stress concentration, and surpass the intensity of material if on the friction means 12 of ceramic, sharp keen bight is set, so, in order to relax stress, and implemented chamfered.And,, can prevent to cause the softening or heating gummed of friction means because of the heat of sliding by using the good ceramic friction means 12 of resistance to heat.
When uneven friction force acts on the friction means 12, on friction means, can produce rotational force.In this case, the end 18a of the friction means of D font (perhaps 18b) contacts with the excision face 15b of supporter 5a and rotational force is stopped.Because end 18a implemented chamfered, stress can not concentrated, thus can keep friction means securely, even produce uneven friction force, the also braking force that can obtain to stipulate.
Below the method for calculating that acts on the moment of rotation on the friction means 12 is described.
Coefficientoffriction between brake component 5 and the guide rail 2 is set at 0.25, and the pressing force of each friction means is set at about 50kN according to the limit of strength of material.Shown in Fig. 6 (a), the moment of rotation T1 that acts on the edge of cylindric friction means 17 can calculate according to following formula.
F1＝μN T1＝F1×r
Wherein, F1 represents friction force, and μ represents friction coefficient, and N represents pressing force, and r represents the radius of friction means.
Shown in Fig. 6 (b), the average moment of rotation T2 in the semi-circular portions when friction force only acts on the friction means 17 right semicircle 17b (perhaps left semicircle 17a) can calculate according to following formula.
F2＝μN/s T2＝2/3F2×r
3
Wherein, F2 represents the friction force of per unit area, and μ represents friction coefficient, and N represents pressing force, and s represents the area of the semicircle of friction means, and r represents the radius of friction means.
Fig. 7 presentation graphs 6 (a) and (b) shown in the result of calculation of moment of rotation, the rotation hold torque when the bar shaped curve represents that friction means 17 carried out shrink fit.The radius of friction means is 6.5mm (diameter is 15mm, and edge chamfer is 1mm).
Under worst condition, the moment of rotation that acts on the marginal portion of certain friction means 17 is about 81Nm.Average moment of rotation when in addition, friction force only acts on semi-circular portions 17b is about 34Nm.The thickness that cooperates when in contrast to this, friction means 17 being carried out shrink fit with supporter cast iron is that the measured value of rotation hold torque of the friction means of 2～3 μ m is about 11Nm.
Therefore, friction means carried out the maintenance structure that shrink fit forms, then when friction force is very uneven, can cause the friction means rotation and the braking force that can't obtain to stipulate iff relying on.And if increase the cooperation thickness of shrink fit in order to ensure the rotation hold torque, the friction stree that then acts on the friction means can become excessive, thereby undesirable.
The position of the rectangular excision face that is provided with for the rotation that suppresses friction means below is described.
The position (sidepiece) of the direction of slip that friction means 12 slided along guide rail 2 when excision face 15a, 15b were arranged on and move with emergency braking apparatus, the lifting direction almost parallel of lift car.This be because, on this position, because of friction force acts on stress minimum on the friction means.
Fig. 8 represents to act on stress on the friction means because of friction force.When the friction force of arrow 22 directions acted on the surface of friction means 12, the length direction (depth direction of brake component) at friction means produced drawing stress, and maxim occurs at the anchor portion place of brake component on lower position 20.On the other hand, with act on lower position 20 on the compressing stress that equates of stress act on upper position 21 places.That is, in emergency braking action, bear the upper and lower that the position is a friction means of bearing of the power that acts on the friction means 12.
Therefore, it is desirable to, from suppressing the angle of rotation, the position of bearing rotational force should avoid acting on the lower position of drawing stress especially, is sidepiece and should select the neutrality point of stress.And, separate by the position that will bear friction force and the position of bearing rotational force, can avoid stress concentration.
At this, if the length L 1 (Fig. 5) of the excision face of friction means then can't be brought into play the effect that stops rotation too short, if and long, then as mentioned above, with the region overlapping that bears friction force, and the generation stress concentration, so this length is preferably about 1/5～1/2 of friction means diameter.
The job operation of processing D font shrinkage pool on brake component that other embodiments are related below is described.
Fig. 9 is the exploded perspective view of brake component.Only, process, form the cylindrical bore 24 (being 6 in Fig. 9) of respective numbers with drill bit according to the quantity that is provided with of friction means.Then, in order to excise the part of cylindrical bore 24, for example form the groove 25 that runs through brake component Width middle body at above-below direction by milling machine processing.Excision position by making cylindrical bore 24 mutually relatively to, can make things convenient for the processing of groove 25.And, process the square rod 23 wideer slightly than groove 25 width, the heating brake component enlarges shrinkage pool, and inserts not shown friction means, and square rod 23 is put into groove 25 after coolings, assembles with this.Thus, compare, can cut down finished cost with electro-discharge machining.In addition, during square rod 23, also can prepare the square rod 23 narrower slightly, methods such as bolt up, bonding and welding are assembled than groove 25 width in assembling.
Friction means 12 shown in Figure 5 also can adopt adhesive agent to be fixed on the supporter 5a.At this moment, the size of the shrinkage pool of supporter 5a is processed into than the diameter of friction means a little more greatly.And, between shrinkage pool and friction means 12, adhesive agent is set.The kind of adhesive agent preferably is adhesive agent of major component etc. with the outstanding ceramic particle of resistance to effect of heat.
Figure 10 represents the longitudinal profile shape of the friction means of other embodiments.
Friction means among the figure is provided with a plurality of excision faces, is provided with two excision faces 27,28 at the mutual relative position of friction means 26, so, owing to can bear rotational force at Liang Chu, can further avoid concentrating of stress.
Figure 11 is illustrated in the another kind of method to set up of the friction means 12 on the supporter 5a.In order to ensure friction force; except not allowing as described above friction means 12 rotates; also the density that strengthens friction means 12 at the Width of guide rail to be guaranteeing the width that slides, and the guide rail cutting powder that glancing impact produces is discharged to the outside of brake component, and this point is very important.If the cutting powder is trapped in brake component inside, the heat of then sliding can be delivered on the support component of brake component via the cutting powder, makes support component produce thermal deformation, thus cause friction means can't with the guide rail uniform contact, therefore friction force descends.
Therefore, as shown in figure 11,8 friction means are arranged to the staggered of 3 row.So-called staggered friction means with the adjacent setting setting of on above-below direction, staggering that is meant.General way is, half that friction means is arranged to friction means is overlapped.
In the present embodiment, used the friction means of 2 kinds of shapes.In the 3 row friction means, the D font friction means 30,31 that has only an excision face is set, and has the friction means 32 of 2 excision faces in the central array setting at the end row.All excision faces all are configured to parallel with the hoist trunk direction of lift car.Wherein, the excision face 30a of the friction means 30,31 of end row, 31a is configured to towards center side.
Suppose to be arranged on the friction means 30 of end row and be arranged on and the friction means 31 of the other end row of this friction means equal height between the guide rail Width be spaced apart W1, friction means 30 and the guide rail above-below direction stagger guide rail above-below direction between the friction means 32 of the adjacent central array that is provided be spaced apart W2 the time, satisfy the relation of W1＜W2.
And it in the friction means 30,31 with end row respectively is one excision face 30a that the excision face end 32a at 2 places of the friction means 32 of central array, 32b are configured to, 31a on same straight line (dotted line 33a, 33b).That is, on the guide rail Width, friction means is not overlapping, and is arranged in very close to each other each other.
More than the action of emergency braking apparatus with the brake component that is provided with above-mentioned friction means is described.Figure 12 represent brake component friction means method to set up and the cutting powder the discharge direction between relation.
After the friction means that is made of pottery was connected to guide rail, brake component moved on the sliding surface of guide rail in the mode that the edge of each friction means slightly cuts the guide rail sliding surface.Can produce the cutting powder this moment.For example, in the cutting powder that cuts by friction means 30,31, pass the cutting powder and friction means 32 collisions in gap 34 of friction means 30,31 after, as arrow 35a, shown in the 35b, flow to two ends of brake component, and be discharged from outside brake component.At this moment, with the friction means 30 that is arranged on the equal height position at the guide rail Width, 31 gap width W3 compares, the adjacent friction means 30 that staggers and be provided with at the guide rail above-below direction, 32 vertical play width W 4 is wideer, so the cutting powder is easy to discharge, and can not be trapped between the friction means in the brake component.And, the friction means 32 of central array, owing to be provided with 2 places excision face, so the gap increase in the brake component, the discharge of cutting powder becomes more easy.And the cutting tip by making end row can be guaranteed wideer gap width W3 towards center side, like this, and the more difficult delay gap 34 in of cutting powder.
In addition, owing to make friction means seamlessly be arranged on the guide rail Width, thus in the scope of guide rail cutting width W5, can not occur cutting the part that powder is detained, and the width increase of effectively sliding, so can guarantee bigger braking force.
The situation that friction means is arranged in the above staggered shape of 4 row too, because friction means is arranged compactly on the guide rail Width, and on the guide rail above-below direction, arrange sparsely, so can discharge the cutting powder easily equally, if but columns is too much, so the discharge of the cutting powder that takes place at the middle body difficulty that will become then is undesirable.
And, used 2 kinds of friction means in the present embodiment, the discharge of cutting powder is become easily, if but only use a kind of friction means in order to suppress tooling cost, its effect can not descend significantly yet.And if use other antifriction parts rotating mechanism, then the setting of the friction means of present embodiment is not limited in the friction means with excision face.
Claims (9)
1. brake shoe for elevator emergency stop makes brake component by being pressed on the guide rail producing braking force when unusual the generation, thereby the lift car of elevator is stopped, and this brake shoe for elevator emergency stop is characterised in that to have:
Friction means, this friction means have the shape that the part excision of cylinder is formed with plane excision face;
Described brake component, it clamps described guide rail by the support component that keeps described friction means; And
Elastic body, its with this brake component by being pressed on the described guide rail, wherein
Described friction means is configured to, and the end face of its cylinder is pressed against on the described guide rail, and described excision face is parallel with the lifting direction of described lift car.
2. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that described friction means is made of pottery.
3. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that, chamfered has been implemented in the end of the sliding surface that slides on described guide rail of described friction means and the end of described excision face.
4. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that chamfered has been implemented in the end of described excision face.
5. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that, is formed with the shrinkage pool that is used to keep described friction means on the described brake component, and the shape of described shrinkage pool and described friction means is formed D font shape.
6. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that described friction means is provided with a plurality of, and described excision face is configured to separately towards equidirectional.
7. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that described friction means has a plurality of excision faces, and at least one the excision face in the described excision face is configured to parallel with the lifting direction of described lift car.
8. brake shoe for elevator emergency stop as claimed in claim 1 is characterized in that, the length along described elevator lifting direction of described excision face is equivalent to 1/5～1/2 of described friction means diameter.
9. elevator, when unusual the generation, make brake component by being pressed on the guide rail to produce braking force, thereby the lift car of elevator is stopped, it is characterized in that, has emergency braking apparatus, this emergency braking apparatus has: friction means, this friction means have the shape that the part excision of cylinder is formed with plane excision face, and the end face of this cylinder is pressed on the guide rail; Described brake component, it clamps described guide rail by the support component that keeps described friction means; And elastic body, by being pressed on the described guide rail, wherein, described excision face is configured to parallel with the lifting direction of described lift car with this brake component for it.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-134670 | 2006-05-15 | ||
| JP2006134670A JP4797786B2 (en) | 2006-05-15 | 2006-05-15 | Elevator emergency stop device and elevator |
| JP2006134670 | 2006-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074076A CN101074076A (en) | 2007-11-21 |
| CN101074076B true CN101074076B (en) | 2010-07-21 |
Family
ID=38836718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101011821A Active CN101074076B (en) | 2006-05-15 | 2007-05-09 | Emergency braking device for elevator and elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4797786B2 (en) |
| CN (1) | CN101074076B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134032A (en) * | 2010-12-16 | 2011-07-27 | 江南嘉捷电梯股份有限公司 | Conveying device for elevator related equipment |
| GB2543291A (en) * | 2015-10-13 | 2017-04-19 | Atwell Int Ltd | Clamping device |
| JP6660853B2 (en) * | 2016-08-30 | 2020-03-11 | 株式会社日立製作所 | Emergency stop device and elevator using the same |
| CN107055253B (en) * | 2017-03-14 | 2022-08-05 | 厦门升通电梯有限公司 | Elevator accidental movement amount control device with buffer gradable braking function |
| CN108285076B (en) * | 2018-03-12 | 2023-10-20 | 界首市迅立达电梯有限公司 | Blocking type elevator car safety protection device |
| CN114364627B (en) * | 2019-09-17 | 2023-07-14 | 株式会社日立制作所 | Lifter for construction |
| CN111348519B (en) * | 2020-04-10 | 2021-07-30 | 立达博仕电梯（苏州）有限公司 | Elevator safety tongs structure |
| CN113694422A (en) * | 2021-08-26 | 2021-11-26 | 四川豪尔泰服饰有限公司 | Electric power safety construction protection frock |
| CN114635591B (en) * | 2022-03-28 | 2023-06-16 | 江西奥德川自动化科技有限公司 | Chain lifting mechanism with steel wire rope anti-falling function for parking equipment |
| CN115973892A (en) * | 2023-02-09 | 2023-04-18 | 宁波梅港码头有限公司 | Container handling equipment monitoring system |
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| US5503257A (en) * | 1993-07-30 | 1996-04-02 | Mitsubishi Denki Kabushiki Kaisha | Brake shoe for elevator safety device |
| CN1217288A (en) * | 1997-11-06 | 1999-05-26 | 奥蒂斯电梯公司 | Safety brake of molybdenum alloy for elevator |
| CN1219496A (en) * | 1997-11-06 | 1999-06-16 | 奥蒂斯电梯公司 | Elevator safety brake having fused sprayed friction coating |
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| JPS5377573U (en) * | 1976-12-01 | 1978-06-28 | ||
| JPS62230586A (en) * | 1986-03-29 | 1987-10-09 | 株式会社東芝 | Emergency stop device for elevator |
| JPH062557B2 (en) * | 1986-03-31 | 1994-01-12 | 三菱電機株式会社 | Elevator safety device |
| JPH056306Y2 (en) * | 1986-07-21 | 1993-02-18 | ||
| JP3294143B2 (en) * | 1996-09-10 | 2002-06-24 | 株式会社東芝 | Brake shoe for elevator emergency stop device, elevator emergency stop device, and elevator having emergency stop function |
| JPH11199159A (en) * | 1997-11-06 | 1999-07-27 | Otis Elevator Co | Elevator safety brake |
| JP3945927B2 (en) * | 1998-12-25 | 2007-07-18 | 東芝エレベータ株式会社 | Brake shoe for elevator emergency stop device, emergency stop device for elevator and elevator with emergency stop function |
| JP2001114281A (en) * | 1999-10-14 | 2001-04-24 | Hiroyoshi Iguchi | Pallet for forklift |
| JP2001289270A (en) * | 2000-04-04 | 2001-10-19 | Mitsubishi Electric Corp | Damping device and damping device for hoisting body |
| JP2002193565A (en) * | 2000-12-27 | 2002-07-10 | Mitsubishi Electric Corp | Brake device for elevator |
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2006
- 2006-05-15 JP JP2006134670A patent/JP4797786B2/en not_active Expired - Fee Related
-
2007
- 2007-05-09 CN CN2007101011821A patent/CN101074076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503257A (en) * | 1993-07-30 | 1996-04-02 | Mitsubishi Denki Kabushiki Kaisha | Brake shoe for elevator safety device |
| CN1217288A (en) * | 1997-11-06 | 1999-05-26 | 奥蒂斯电梯公司 | Safety brake of molybdenum alloy for elevator |
| CN1219496A (en) * | 1997-11-06 | 1999-06-16 | 奥蒂斯电梯公司 | Elevator safety brake having fused sprayed friction coating |
Non-Patent Citations (5)
| Title |
|---|
| JP昭59-7682A 1984.01.14 |
| JP特开2000-191252A 2000.07.11 |
| JP特开2002-193565A 2002.07.10 |
| JP特开平11-335028A 1999.12.07 |
| JP特开平6-206675A 1994.07.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101074076A (en) | 2007-11-21 |
| JP4797786B2 (en) | 2011-10-19 |
| JP2007302450A (en) | 2007-11-22 |
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