CN1296266C - Elevator shock absorber - Google Patents
Elevator shock absorber Download PDFInfo
- Publication number
- CN1296266C CN1296266C CNB038003511A CN03800351A CN1296266C CN 1296266 C CN1296266 C CN 1296266C CN B038003511 A CNB038003511 A CN B038003511A CN 03800351 A CN03800351 A CN 03800351A CN 1296266 C CN1296266 C CN 1296266C
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- Prior art keywords
- elevator
- pulley
- plunger
- buffer
- long member
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- Expired - Fee Related
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Fluid-Damping Devices (AREA)
Abstract
An elevator buffer includes: a hydraulic buffer main body (2) arranged at a lowermost part of a hoistway, in which a plurality of plungers (6a to 6c) are coupled to an upper surface of a cylinder (5) at multiple stages; a pulley mechanism (3) having pulley multi-winging means (10) in which one end of a flexible long member (9) is fixed to the uppermost plunger (6a), the other end of the flexible long member (9) is fixed to a first fixing part (8), a middle part of the flexible long member (9) having two mutually coupled movable pulleys (12a, 12b), and a fixed pulley (13); and a return checking switch (4) operated in accordance with upper and lower positions of the movable pulleys (12a, 12b).
Description
Technical field
The present invention relates to a kind ofly be used for when cage or the weight that suspends fall for some reason, stopping cage or the weight that suspends (suspended weight) and reduce the buffer of elevator that impacts as far as possible.Particularly, the present invention relates to a kind of energy disperser with step connection plunger.
Background technology
Fig. 1 illustrates common buffer of elevator.This buffer of elevator 100A has the hydraulic buffer main body 101 of the melt pit bottom that is positioned at an access trunk lowermost end.Hydraulic buffer main body 101 comprises: the cylinder 102, of charge of oil is engaged in the cylinder 102 and the plunger 103 and that can extend along the vertical direction or withdraw is installed in compression spring 104 in plunger 103 and the cylinder 102 slidably in one.
Be fixed with a cam connecting arm 105 in the upper end of plunger 103.One cam lever 106 vertically is installed in an end of horizontally extending cam connecting arm 105.The bottom of cam lever 106 engages with the motion arm 107a of return checking switch 107.Return checking switch 107 be configured to by cam lever 106 move downward from " ON " be converted to " OFF ".Return checking switch 107 is fixed on the cylinder 102 by switch connecting arm 108, and is positioned in order to avoid interfere with plunger 103 or analogue to be shortened.By way of parenthesis, a Reference numeral 109 expression is used to export the cable of the switching information of return checking switch 107.
Next introduce the operation of buffer of elevator 100A.Such as, when cage 110 descended for some reason and clashes into the upper surface of plunger 103, plunger 103 opposing hydraulic couplings or spring pressure were withdrawn gradually, thereby cage 110 is stopped safely.The withdrawal of plunger 103 reduces cam lever 106, to cut off return checking switch 107.Cut off the electricity supply by cutting off return checking switch 107.
By resuming work or after similar operation rises to the normal operation zone, plunger 103 returns extended position by spring pressure in the cage on the plunger 103 110.Since the elongation of plunger 103, the connection return checking switch 107 that cam lever 106 rises.Power supply is transformed into " ON " by connecting return checking switch 107 first, thereby cage 110 can normally be moved.That is to say that cage 110 only after plunger 103 returns extended position and returns to the stable halted state of the abnormality landing of guarding against cage 110, could normally be moved.
Fig. 2 illustrates another kind of common buffer of elevator.As shown in Figure 2, this buffer of elevator 100B has the hydraulic buffer main body 101 of the melt pit bottom that is positioned at the access trunk lowermost end.Hydraulic buffer main body 101 comprises: the cylinder 102, of charge of oil is engaged in the cylinder 102 and the plunger 103 and that can extend along the vertical direction or withdraw is installed in compression spring 104 in plunger 103 and the cylinder 102 slidably in one.
Be fixed with a cam connecting arm 111 in the upper end of plunger 103.One end such as the flexible long member 112 of cord is connected an end of horizontally extending connecting arm 111.The other end of this flexible long member 112 is connected with the motion arm 107a of return checking switch 107.At the extended position of plunger 103, the pulling force of flexible long member 112 makes return checking switch 107 be in the state of " ON ".Return checking switch 107 be configured to by plunger 103 move downward from " ON " be converted to " OFF ".Return checking switch 107 is fixed on the cylinder 102 by switch connecting arm 108, and is positioned in order to avoid interfere plunger to be shortened 103 or analogue.By way of parenthesis, a Reference numeral 109 expression is used to export the cable of the switching information of return checking switch 107.
Next introduce the operation of buffer of elevator 100B.Such as, when cage 110 descended for some reason and clashes into the upper surface of plunger 103, plunger 103 opposing hydraulic couplings or spring pressure were withdrawn gradually, thereby cage 110 is stopped safely.The withdrawal of plunger 103 discharges the tension force of flexible long member 112, to cut off return checking switch 107.Cut off the electricity supply by cutting off return checking switch 107.
By resuming work or after similar operation rises to the normal operation zone, plunger 103 returns extended position by spring pressure in the cage on the plunger 103 110.Because the elongation of plunger 103, the pulling force of flexible long member 112 recovers, to connect return checking switch 107.Power supply is transformed into " ON " by connecting return checking switch 107, thereby cage 110 can normally be moved.
In above-mentioned pattern, can guarantee the safety of elevator, the mal landing and the safety of resisting cage 110 or analogue because buffer of elevator 100A, 100B in shock-absorbing stop, and cage 110 or analogue are out of service detects plunger 103 up to return checking switch 107 and return extended position after cage 110 that mal descends or analogue rise to normal operation area.
For the employed energy disperser of express elevator, use to have the energy disperser main body of step connection plunger, to realize little energy disperser and long plunger stroke simultaneously.If only the mounting structure with return checking switch shown in Figure 1 is configured in the energy disperser of the energy disperser main body of using the step connection plunger system similar shown in its structure and Fig. 3 A.
In Fig. 3 A, in this energy disperser 100C, a hydraulic buffer main body 101 with plunger 103a to 103c of step connection is arranged in the melt pit bottom of access trunk lowermost end.Be provided with the end that a cam connecting arm 105, one cam pipe links 106 vertically are installed in cam connecting arm 105 in the top of plunger 103a.Other member and above-mentioned member are similar, and use identical Reference numeral to represent, save explanation at this.
But, as described in Fig. 3 B, because plunger stroke is longer than cylinder length, so the problem that exists the cam lever 106 and the attachment face of cylinder 102 to interfere mutually.
Summary of the invention
The design of an energy disperser 100D as shown in Figure 4 is to solve the above problems.As shown in Figure 4, in this energy disperser 100D, each cam connecting arm 105 and cam lever 106 are installed on each of plunger 103a to 103c, and return checking switch 107 then not only is installed on the cylinder 102, also install on second stage plunger 103b and the third stage plunger 103c.Like this, plunger 103a is detected by a plurality of return checking switches 107 to the retraction movement of plunger 103c.
Uppermost plunger 103a can not rotate, and its reason is that it is with cage (not shown) withdrawal mounted thereto.But plunger 103b and the 103c of plunger 103a are easy to rotate because of rotating freely so be lower than topmost, shown in the arrow among Fig. 4.Therefore, might the 107 energy stable operations of neither one return checking switch.
On the other hand, the mounting structure that can design as shown in Figure 2 return checking switch 107 is applied on the energy disperser that uses the step connection absorber main body.But it is very long that flexible long member can become, and in the process of plunger withdrawal and elongation, flexible long member is tangled probably.Therefore, there is the malfunctioning possibility of return checking switch.In addition, entanglement can be broken flexible long member, thereby can't guarantee the stable normal operation of return checking switch.
Design of the present invention is to address the above problem, and one of purpose of the present invention provides a kind of absorber main body of using the step connection plunger and the stable and buffer of elevator of working exactly under situation about not interfering with cylindrical installation surface.
One buffer of elevator comprises: an energy disperser main body, and wherein there are a plurality of plungers to be connected with multistage and cylindrical upper surface, the energy disperser main body is placed in the lowermost end of access trunk; One has the pulley mechanism of pulley multiple wing shape device (pulley multi-winging means), wherein an end of flexible long member is fixed on the plunger topmost, the other end of flexible long member is fixed on the connecting element, the centre portion of flexible long member is by at least one or a plurality of removable pulley swivel bearing, and the lax of flexible long member subdued by the whereabouts of removable pulley; With a return checking switch of operating according to the upper-lower position of removable pulley.
In this buffer of elevator, when plunger was contracted, the height that flexible long member descends equated with the stroke of plunger, and the height of drop of flexible long member is subdued by the whereabouts of removable pulley.The height of drop of flexible long member can be subdued by quite little distance of fall.When flexible long member is suspended between dead sheave and the removable pulley, because measuring, its whereabouts subdued, so can not tangle.Like this, in the energy disperser of the energy disperser main body of using the step connection plunger, just, be shorter than at cylinder under the situation of whole withdrawal stroke of plunger, can operate return checking switch stably and normally, and can not interfere the installation surface of cylinder.
Preferably, a tensioner weight is installed on the removable pulley, and return checking switch is installed on tensioner weight or the cylinder.
In this buffer of elevator,, just can avoid flexible long member because the lax entanglement that causes because the tension force of flexible long member improves.Because return checking switch is not installed in a fixed position, just there is no need to guarantee its installing space.Because the length of flexible long member does not need to regulate, so the operating position of return checking switch is easy to regulate.In addition, because need not install and fix the fixed parts of return checking switch separately, can simplified structure.
The up-and-down movement that one guide rail guides tensioner weight can be installed.
According to this design, the swing of removable pulley or flexible long member is subjected to the inhibition of tensioner weight.Thereby can move removable pulley or analogue reposefully.
The elastic drive device can be installed to move down to drive removable pulley.
In this buffer of elevator,, can move removable pulley at an easy rate by the pressure of elastomeric element, so can avoid the lax of flexible long member as much as possible because when plunger is withdrawn.Like this, just can avoid inefficacy and entanglement because of the lax flexible long member that causes.
One end that amplifies connecting rod is connected on the removable pulley, and return checking switch engages with the other end that amplifies connecting rod, and the upper and lower displacement of each pulley reaches the other end that amplifies connecting rod after just being exaggerated.
In this buffer of elevator, because the whereabouts stroke of removable pulley converts bigger displacement to by amplifying connecting rod, and return checking switch is just operated by this bigger displacement.Like this, return checking switch just can steadily and accurately be worked.
Brief Description Of Drawings
Fig. 1 is a kind of front schematic view of common buffer of elevator example.
Fig. 2 is the front schematic view of another common buffer of elevator example.
Fig. 3 A and Fig. 3 B illustrate the absorber main body of using the step connection plunger system and the cage of only having arranged the mounting structure of return checking switch shown in Figure 1: the front elevation of buffer of elevator when Fig. 3 A extends as plunger, and Fig. 3 B is the front elevation of plunger when withdrawal buffer of elevator.
Fig. 4 for Fig. 1 will shown in the mounting structure of return checking switch be arranged in the front elevation of the energy disperser on each plunger, used absorber main body this moment with step connection plunger system.
Fig. 5 is the front schematic view of the buffer of elevator of first embodiment of the invention.
Fig. 6 is the block diagram of pulley multiple wing shape device of the pulley mechanism of first embodiment of the invention.
Fig. 7 is for explaining that removable pulley is with respect to the view of the distance of fall of the height of drop of flexible long member in the pulley mechanism of first embodiment of the invention.
Fig. 8 is the front schematic view of the buffer of elevator of second embodiment of the invention.
Fig. 9 is the front schematic view of the buffer of elevator of third embodiment of the invention.
Figure 10 is the front schematic view of the buffer of elevator of fourth embodiment of the invention.
Figure 11 is the front schematic view of the buffer of elevator of fifth embodiment of the invention.
Figure 12 is the front schematic view of the buffer of elevator of sixth embodiment of the invention.
Figure 13 is the front schematic view of the buffer of elevator of seventh embodiment of the invention.
Figure 14 is the front schematic view of the buffer of elevator of eighth embodiment of the invention.
Preferred forms of the present invention
Introduce the preferred embodiments of the present invention hereinafter with reference to accompanying drawing.
First embodiment
Fig. 5 to Fig. 7 illustrates the first embodiment of the present invention.Fig. 5 is the front schematic view of a buffer of elevator 1A, Fig. 6 is the block diagram of the pulley multiple wing shape device 10 of pulley mechanism 3, and Fig. 7 explains in pulley mechanism 3, removable pulley 12a, and 12b is with respect to the view of the distance of fall of the height of drop of flexible long member 9.
As shown in Figure 5, buffer of elevator 1A comprises: one is positioned at the hydraulic buffer main body 2 of the melt pit bottom of access trunk lowermost end; One withdrawal that is used for the plunger 6a to 6c by hydraulic buffer main body 2 reduces removable pulley 12a, the pulley mechanism 3 of 12b; With a removable pulley 12a according to pulley mechanism 3, the return checking switch 4 that the upper-lower position of 12b is operated.
Hydraulic buffer main body 2 comprises: the cylinder 5 of charge of oil in; Be slidably mounted on the cylinder 5 and the step connection plunger 6a to 6c of elongation/withdrawal along the vertical direction; With a compression spring (not shown) that is installed in 5 li on step connection plunger 6a to 6c and cylinder.
As shown in Figure 5, return checking switch 4 comprises: the motion arm 4b that a switch main body 4a and stretches out from switch main body 4a.Switch main body 4a is fixed on second fixed parts 14 that is arranged in cylinder 5 altitude ranges.Motion arm 4b is installed in by removable pulley 12a, the position that 12b interferes.Return checking switch 4 is configured to the removable pulley 12a that falls and to cause by plunger 6a to 6c, and moving downward from " ON " of 12b is transformed into " OFF ".By the way, Reference numeral 15 is used to export the cable of the switching information of return checking switch 4 for expression.
Next will introduce the operation of buffer of elevator 1A.Such as when a cage 16 falls for some reason and clashes into the upper surface of uppermost plunger 6a, each among the plunger 6a to 6c is all resisted hydraulic coupling or spring pressure and withdrawal gradually, thereby cage 16 safety are stopped.When each the withdrawal among the plunger 6a to 6c makes flexible long member 9 reduce a height identical with plunger stroke, removable pulley 12a, 12b falls to subdue the height of drop of flexible long member 9.Along with removable pulley 12a, the whereabouts of 12b, return checking switch 4 is closed.By closing return checking switch 4, power supply is cut off.
When the cage on the plunger 6a to 6c 16 was opened to normal operation area by resuming operation etc., plunger 6a to 6c returned extended position by the pressure of spring.When plunger 6a to 6c extended, removable pulley 12a, 12b rose with by connecting return checking switch 4 with above-mentioned opposite operation.By connecting return checking switch 4, power supply is transformed into " ON " first so that cage 16 can normally be moved.
Be presented in the aforesaid operations process falling head of flexible long member 9 and removable pulley 12a, the relation of the dropping distance of 12b now.If the falling head of flexible long member 9 is L1, and flexible long member 9 is around removable pulley 12a, and the winding number of 12b is N, then removable pulley 12a, and the dropping distance of 12b becomes L2=L1/ (2 * N).According to first embodiment, because N is because flexible long member 9 is wrapped in two removable pulley 12a, 12b is last and be 2, so removable pulley 12a, the dropping distance L2 of 12b is the dropping distance L1 of flexible long member 9, and just 1/4 of a plunger shape journey.So because the falling head L1 of flexible long member 9 can be by removable pulley 12a, the less dropping distance of 12b is subdued, so removable pulley 12a can not take place, 12b is to the interference of the installation surface 17 of cylinder 5.And flexible long member 9, can not be tangled because its dropping distance is subdued in the time of between the 12b being suspended on dead sheave 13 and removable pulley 12a.Thereby, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, just, be shorter than at cylinder 5 under the situation of whole withdrawal stroke of plunger, can operate return checking switch 4 stably and normally, and can not cause any interference the installation surface 17 of cylinder 5.Therefore, can obtain than failure-free energy disperser 1A.
Flexible long member 9 specifically comprises: a rope part, a band part, a chain or analogue.If flexible long member 9 is made of the rope part, its cost is just lower.If it is made of the band part, the operation of return checking switch 4 is just more accurate so, because compare the percentage elongation of band part with the rope part littler.If this flexible long member is made of chain, the operation of return checking switch 4 is just accurate all the more so, because compare the elongation of chain with restrict part and band part littler, in addition, collapsed diameter (diameter of pulley) can be established forr a short time.The specific example of flexible long member 9 is similar in subsequently second embodiment and other embodiment.
In first embodiment, the number of removable pulley is 2, just 12a and 12b, and flexible long member 9 is around removable pulley 12a, the winding number of 12b also is 2.But much less, the quantity of removable pulley can be 1, flexible long member 9 also can be for 1 (in this case around the writhing number of removable pulley, substantially do not need dead sheave), perhaps the quantity of removable pulley can be equal to or greater than 3, and flexible long member 9 also can be equal to or greater than 3 around the writhing number of removable pulley.Height and whole plunger withdrawal stroke according to cylinder 5 are determined the value of flexible long member 9 around the writhing number of removable pulley.This is equally applicable to following second embodiment.
Second embodiment
Fig. 8 is the front schematic view of the buffer of elevator 1B of second embodiment of the invention.
As shown in Figure 8, the buffer of elevator 1B of second embodiment and the difference of first embodiment are that a tensioner weight 20 is installed in removable pulley 12a, on the 12b.Other member is similar with the member among first embodiment, and represents with identical Reference numeral, therefore will save the introduction to them.
The operating process of the buffer of elevator 1B of second embodiment is similar to first embodiment.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1B.
And, according to second embodiment, because the tension force of flexible long member 9 can improve by tensioner weight 20, so can avoid inefficacy and entanglement because of the lax flexible long member 9 that causes.
The 3rd embodiment
Fig. 9 is the front schematic view of the buffer of elevator 1C of third embodiment of the invention.
In a second embodiment, return checking switch 4 is installed on second fixed parts 14, but as shown in Figure 9, in the buffer of elevator 1C of the 3rd embodiment, return checking switch 4 is installed in face under the tensioner weight 20, and the motion arm 4b of return checking switch 4 is arranged in the position that interference is fixed on the cam 21 on the cylinder 5.Other member is similar to the member among second embodiment, and represents with identical Reference numeral, therefore saves its introduction.
The operation and second embodiment of the buffer of elevator 1C of the 3rd embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1C.
And, according to the 3rd embodiment, because return checking switch 4 is not installed in fixing position, so need not guarantee its installing space.The operating position of return checking switch 4 can be regulated by the position that changes cam 21 under the situation of the length of not regulating flexible long member 9.Therefore, adjusting is easy to.
According to the 3rd embodiment because return checking switch 4 be arranged in tensioner weight 20 under the position, just can avoid return checking switch 4 to be exposed in rubbish and the dust as far as possible.Therefore, can avoid return checking switch 4 malfunctioning.
The 4th embodiment
Figure 10 is the front schematic view of the buffer of elevator 1D of fourth embodiment of the invention.
In a second embodiment, return checking switch 4 is installed on second fixed parts 14, and as shown in figure 10, in the buffer of elevator 1D of the 4th embodiment, return checking switch is installed on the cylinder 5.Other member is similar to the member among second embodiment, and represents with identical Reference numeral, therefore saves its introduction.
The operation and second embodiment of the buffer of elevator 1D of the 4th embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1D.
And, according to the 4th embodiment, because need not install and fix the fixed parts (similar) of return checking switch 4 separately to second fixed parts 14 shown in Figure 8, can simplified structure.
The 5th embodiment
Figure 11 is the front schematic view of the buffer of elevator 1E of fifth embodiment of the invention.
As shown in figure 11, the buffer of elevator 1E of the 5th embodiment and the difference of the 4th embodiment are, a cover part 22 are installed to cover each removable pulley 12a, the periphery of 12b.Other member is similar to the member among the 4th embodiment, and represents with identical Reference numeral, therefore saves its introduction.
Operation and the 4th embodiment of the buffer of elevator 1E of the 5th embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1E.
And, according to the 5th embodiment, because cover part 22 has avoided dust and analogue to be bonded at removable pulley 12a as far as possible, on the 12b, so the flexible long member 9 or the removable pulley 12a that can stop dust and analogue to cause as far as possible, the misoperation of 12b.
The 6th embodiment
Figure 12 is the front schematic view of the buffer of elevator 1F of sixth embodiment of the invention.
As shown in figure 12, the buffer of elevator 1F of the 6th embodiment and the difference of the 4th embodiment are that mounting guide rail 23 is with guiding tensioner weight 20 up-and-down movements.Other member is similar to the member among the 4th embodiment, and represents with identical Reference numeral, therefore saves its introduction.
Operation and the 4th embodiment of the buffer of elevator 1F of the 6th embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1F.
And according to the 6th embodiment, removable pulley 12a, the wing of 12b or flexible long member 9 are subjected to the inhibition of tensioner weight 20, thereby can make removable pulley 12a, and 12b or analogue steadily move.
The 7th embodiment
Figure 13 is the front schematic view of the buffer of elevator 1G of seventh embodiment of the invention.
As shown in figure 13, the buffer of elevator 1G of the 7th embodiment and the difference of the 5th embodiment are, compression spring 24 are installed as driving removable pulley 12a, the elastic drive device that 12b moves down.Other member is similar to the member among the 5th embodiment, and represents with identical Reference numeral, therefore saves its introduction.
Operation and the 5th embodiment of the buffer of elevator 1G of the 7th embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1G.
And according to the 7th embodiment, because when plunger 6a to 6c elongation/withdrawal, removable pulley 12a, 12b move under the propulsive effort effect of compression spring 24 easily, so can avoid the lax of flexible long member 9 as far as possible.The inefficacy and the entanglement of the flexible long member 9 that therefore can avoid lax and cause.
According to the 7th embodiment, the elastic drive device is made of compression spring 24.But so long as initial downward propulsive effort can be reached removable pulley 12a, the device of 12b can utilize.
The 8th embodiment
Figure 14 is the front schematic view of the buffer of elevator 1H of eighth embodiment of the invention.
As shown in figure 14, the buffer of elevator 1H of the 8th embodiment and the difference of the 5th embodiment are, a connecting arm 7 is provided with longlyer, and one amplifies an end and the removable pulley 12a of connecting rod 25, the sidepiece of 12b (specifically below tensioner weight 20) engages, and the other end that amplifies connecting rod 25 then is connected on the motion arm 4b of return checking switch 4.In amplifying connecting rod 25, fulcrum 26 is set, with each removable pulley 12a, after amplifying, the whereabouts displacement of 12b reaches the other end of connecting rod 25.
Other member is similar to the member among the 5th embodiment, and represents with identical Reference numeral, therefore saves its introduction.By way of parenthesis, length that also can connecting arm 7 is set to identical with other embodiment.
Operation and the 5th embodiment of the buffer of elevator 1H of the 8th embodiment are similar.According to this operation, in the energy disperser of the energy disperser main body 2 of using step connection plunger 6a to 6c, return checking switch 4 can be worked under the situation of the installation surface 17 of not interfering cylinder 5 stably and normally.Thereby, can obtain than failure-free energy disperser 1H.
And according to the 8th embodiment, each removable pulley 12a, the whereabouts stroke of 12b changes into bigger displacement by amplifying connecting rod 25, and this bigger displacement can be operated return checking switch 4.Thereby return checking switch 4 can be worked stably and normally.That is to say that because each removable pulley 12a, the whereabouts stroke of 12b is established lessly (being made as at least the height less than cylinder 5), if return checking switch 4 may take place malfunctioning by less whereabouts stroke direct control.And use the 8th embodiment just can eliminate this possibility definitely.
According to the 8th embodiment, step connection plunger 6a to 6c constitutes by three grades.But, need not say that the present invention can use two-stage, level Four or more multistage more.
Industrial applicability
As mentioned above, according to the present invention, what the whereabouts of flexible long member highly can be by removable pulley Subdue the whereabouts, and the whereabouts height of flexible long member can be by the abundant little whereabouts distance of removable pulley From subduing. And advantage is, because flexible long member is being suspended on fixedly pulley and removable cunning In the time of between the wheel, its drop section area is subdued, so can not tangle. According to the present invention, can be steady Decide normally to operate return checking switch, and can not interfere the installation surface of cylinder.
Claims (5)
1. buffer of elevator comprises:
One energy disperser main body, on a cylindrical upper surface, the energy disperser main body is placed in the lowermost end of access trunk to wherein a plurality of plungers with step connection;
One has the pulley mechanism of pulley multiple wing shape device, wherein an end of a flexible long member is fixed on the plunger topmost, the other end of flexible long member is fixed on the connecting element, the centre portion of flexible long member is by at least one or a plurality of removable pulley swivel bearing, and flexible long member is lax by subduing the whereabouts of removable pulley; With
One return checking switch of operating according to the upper-lower position of removable pulley.
2. buffer of elevator as claimed in claim 1 is characterized in that: a tensioner weight is installed on the removable pulley, and return checking switch is installed on tensioner weight or the cylinder.
3. buffer of elevator as claimed in claim 2 also comprises the up-and-down movement of a guide rail with the guiding tensioner weight.
4. as the described buffer of elevator of one of claim 1 to 3, also comprise being used to drive the elastic drive device that removable pulley moves down.
5. as the described buffer of elevator of one of claim 1 to 3, comprise that also one amplifies connecting rod, the one end is connected on the removable pulley, and the other end engages with return checking switch, and the upper and lower displacement of each pulley reaches the other end that amplifies connecting rod after being exaggerated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002097863A JP4006254B2 (en) | 2002-03-29 | 2002-03-29 | Elevator shock absorber |
| JP097863/2002 | 2002-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1514798A CN1514798A (en) | 2004-07-21 |
| CN1296266C true CN1296266C (en) | 2007-01-24 |
Family
ID=28671930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038003511A Expired - Fee Related CN1296266C (en) | 2002-03-29 | 2003-03-24 | Elevator shock absorber |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4006254B2 (en) |
| KR (1) | KR100615932B1 (en) |
| CN (1) | CN1296266C (en) |
| MY (1) | MY141821A (en) |
| TW (1) | TW590978B (en) |
| WO (1) | WO2003082723A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4530708B2 (en) * | 2004-04-20 | 2010-08-25 | 東芝エレベータ株式会社 | Elevator shock absorber |
| FI119808B (en) * | 2007-12-17 | 2009-03-31 | Kone Corp | Elevator bumper arrangement |
| JP5368289B2 (en) * | 2009-12-18 | 2013-12-18 | 株式会社日立製作所 | Elevator equipment |
| JP2011256001A (en) * | 2010-06-08 | 2011-12-22 | Hitachi Ltd | Elevator device |
| CN101955101A (en) * | 2010-09-17 | 2011-01-26 | 昆山京都电梯有限公司 | Lift traction machine testing device |
| CN103359577B (en) | 2013-07-23 | 2015-04-01 | 东南电梯股份有限公司 | Special elevator anti-falling buffer based on flexible guide |
| CN105600641A (en) * | 2015-12-01 | 2016-05-25 | 佛山市欧汇电梯配件有限公司 | Hydraulic buffer |
| JP7156044B2 (en) | 2019-01-11 | 2022-10-19 | 三菱電機ビルソリューションズ株式会社 | elevator equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069897A (en) * | 1976-08-26 | 1978-01-24 | Westinghouse Electric Corporation | Elevator system |
| US5195616A (en) * | 1992-07-15 | 1993-03-23 | Otis Elevator Company | One to two stroke roped elevator pit buffers |
| JPH11310370A (en) * | 1993-04-05 | 1999-11-09 | Kone Oy | Buffer mechanism |
| JP2001226053A (en) * | 2000-02-16 | 2001-08-21 | Toshiba Elevator Co Ltd | Elevator device |
-
2002
- 2002-03-29 JP JP2002097863A patent/JP4006254B2/en not_active Expired - Fee Related
-
2003
- 2003-03-21 TW TW092106359A patent/TW590978B/en not_active IP Right Cessation
- 2003-03-24 WO PCT/JP2003/003517 patent/WO2003082723A1/en active Application Filing
- 2003-03-24 CN CNB038003511A patent/CN1296266C/en not_active Expired - Fee Related
- 2003-03-24 KR KR1020037015324A patent/KR100615932B1/en not_active IP Right Cessation
- 2003-03-26 MY MYPI20031092A patent/MY141821A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069897A (en) * | 1976-08-26 | 1978-01-24 | Westinghouse Electric Corporation | Elevator system |
| US5195616A (en) * | 1992-07-15 | 1993-03-23 | Otis Elevator Company | One to two stroke roped elevator pit buffers |
| JPH11310370A (en) * | 1993-04-05 | 1999-11-09 | Kone Oy | Buffer mechanism |
| JP2001226053A (en) * | 2000-02-16 | 2001-08-21 | Toshiba Elevator Co Ltd | Elevator device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1514798A (en) | 2004-07-21 |
| WO2003082723A1 (en) | 2003-10-09 |
| JP4006254B2 (en) | 2007-11-14 |
| MY141821A (en) | 2010-06-30 |
| TW590978B (en) | 2004-06-11 |
| KR20040003005A (en) | 2004-01-07 |
| KR100615932B1 (en) | 2006-08-28 |
| TW200305537A (en) | 2003-11-01 |
| JP2003292262A (en) | 2003-10-15 |
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