EP0410776B1 - A telescopic door assembly - Google Patents
A telescopic door assembly Download PDFInfo
- Publication number
- EP0410776B1 EP0410776B1 EP19900308244 EP90308244A EP0410776B1 EP 0410776 B1 EP0410776 B1 EP 0410776B1 EP 19900308244 EP19900308244 EP 19900308244 EP 90308244 A EP90308244 A EP 90308244A EP 0410776 B1 EP0410776 B1 EP 0410776B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- track
- telescopic
- low speed
- roller assemblies
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
Definitions
- the present invention relates to telescopic door assemblies, and particularly though not exclusively to automatic telescopic doors for elevators.
- Conventional telescopic door assemblies for elevators are basically composed of a metal frame on which a series of main subassemblies are mounted. These sub-assemblies include; more or less complex door profiles or panels for fire labyrinth needs, door panel hanger supports equipped with rollers and counterrollers, and two parallel tracks along which the rollers run.
- This type of configuration likewise gives rise to problems of parallelism and straightness of the two tracks and the lintel.
- the operation of the door assembly is adversely affected by the cantilevered configuration of the rollers and counterrollers which require very strong shafts and hanger supports in order to overcome deformations produced by the overhanging doors when reopening after encountering an obstacle during closing.
- the present invention is applicable to the type of above cited telescopic door assemblies and, as also known from US-A-4073034, provides a telescopic door assembly comprising a high speed door and a low speed door, each door being hung from a pair of spaced apart roller assemblies, with said roller assemblies running along a single common track.
- This provides for an assembly having relatively few components, which is quick and easy to install.
- the track can be connected to the door lintel in a simple manner, as there is no need to accurately position it with respect to another track.
- the invention is, however, different from and characterised over US-A-4073034, in that the roller assemblies of the low speed door are spaced apart in the direction of the track a greater distance than the roller assemblies of the high speed door, and in that the roller assemblies of the high speed door are located on the track between the roller assemblies of the low speed door.
- the door profiles may be identical to each other and be provided with suitable orthogonal foldings in their longitudinal edges to determine both a fire labyrinth configuration and a sealing between the profiles or doors.
- thin metallic sheets may be provided centrally and longitudinally on the surfaces of the panels to provide soundproofing.
- the general door assembly may comprise suitable profiles which can be assembled together, so that they may be dismounted which makes it possible to effect the assembly or disassembly in situ.
- the invention provides for an assembly having a dismountable frame with active elements preassembled for a compact and easy transport from factory to the field with minimum manufacturing and erection time.
- FIG. 1 an elevator door assembly is shown, in which a high speed door 2 and a low speed door 3 are hung from a single track 1 mounted in the door frame lintel 18.
- the doors 2 and 3 are shown in their closed positions in which they close the door opening between the two door frame stiles 17.
- the low speed door 3 is suspended from one end of a hanger support 4.
- the hanger support 4 has a length, along the track 1, substantially equal to that of the door opening, i.e. the distance between the two pillars 17, and is slidably mounted on the track 1 by rolling assemblies 4L and 4R, positioned at its left and right hand ends respectively.
- the high speed door 2 is suspended from a second hanger support 5 which, in this case, is of slightly less extent than the high speed door 2 itself.
- This hanger support 5 is slidably mounted on track 1 by rolling assemblies 5L and 5R, positioned at each of its ends. These high speed door rolling assemblies 5L and 5R are positioned on the track 1 between the low speed door rolling assemblies 4L and 4R.
- the low speed door hanger 4 is of greater vertical extent than the high speed door hanger 5.
- the doors 2 and 3 are opened and closed, as is conventional, by means of a hauling cable 6 which passes through corresponding pulley-wheels, and is connected to a counterweight 7.
- rolling assembly 5R lies adjacent rolling assembly 4R but when the doors 2 and 3 are closed the high speed door 2 moves relative to the low speed door 3 so that, as seen in Fig. 1, the rolling assembly 5L lies adjacent rolling assembly 4L, with the distance between the two right hand rolling assemblies 5R and 4R being longer than half the door opening width.
- This is of course to allow the two doors 2 and 3 to telescope behind one another when open and lie behind the right hand stile 17 without the door 2 projecting out from the frame further than the low speed door 3.
- the rolling assemblies 5L and 5R of the high speed door 2 are positioned inwardly from the ends of hanger 5, a distance corresponding to the width of the rolling assemblies 4L and 4R.
- the supports 4 and 5 may move along the single track I by means of a rolling assembly similar to the ones shown in Figures 2 and 3 which are more fully disclosed in our co-pending patent application, of even date herewith, entitled “Telescopic Elevator Door Assembly”.
- the guide or sliding track 1 has a rectangular section.
- the track 1 may be fastened to the general structural frame by friction and without the need for machining or additional operations of welding perforations. This avoids the problem of aligning the two parallel tracks which are used in conventional doors, as well as eliminating the use of separators, screws, welding, etc.
- the rolling element or system shown in Figure 2 is made up of a box 8 which contains and protects all the rolling elements, thus avoiding the cantilever roller and counterroller configurations which are used in the conventional designs and which have an inherent flimsiness.
- This rolling assembly comprises a single unit independent from the track 1 which includes all the elements for its fastening to the hanger support 5 of the door panel.
- the assembly is constructed so as to produce sidewards movement without the need for any adjustments and to provide automatic attainment of the desired clearance between the doors for movement.
- Rollers 9 and 10 which rest precisely on the top and bottom edges of the track 1 are mounted inside the box 8. These rollers are fastened by through screws 11 and 12, respectively, which aside from serving as a support for the rollers fasten the unit, in other words, the box 8 and all its elements, to the respective hanger support 5 of the door.
- the rigidity of this described configuration is advantageous in order to obtain smooth movement of the door panels without jerks and resistance when reopening the doors, in the event that they encounter obstacles during closing.
- FIG. 3 A variant of this type of rolling assembly is shown in Figure 3, where one can see that the track consists of a cylindrical bar 1′.
- ball bearings 13 are used as the roller means and are provided in a corresponding box 14, which is, in turn, fastened to the hanger support 5 of the door by screws 15.
- Both of these rolling or sliding systems allow a substantial reduction in assembly time and a total elimination of the adjustment time.
- the track unit, rolling assemblies and hanger supports of the doors can be manufactured and installed in the door frame lintel so that the same can be assembled in the factory and easily transported to the field.
- FIG 4 shows a schematic cross section of the two doors 2 and 3, which are formed by sheet panels of identical profile with six orthogonal foldings in each, the foldings forming sealing means and fire labyrinth paths.
- Each panel or profile of the doors 2 and 3 may include a soundproofing element which is of a simple form but which permits, nevertheless, the attainment of a very good capacity for noise absorption of the corresponding door panel.
- the soundproofing element consisting of a narrow metal panel 16 which is flat, very thin, and fastened centrally and longitudinally to each panel 2, so that it acts as a noise absorption resonant element.
- the fastening may be done with glue and the element may be kept in position in the top and bottom parts by screws which are used in turn to fasten the door panel to the hanger supports, as well as to the lower guide-shoe metallic support.
- the described embodiment provides a telescopic door assembly including a frame which is easy to assemble and disassemble. It is easily transported to the field, and there may be a high degree of preassembly at the factory, all of which permits a considerable reduction in the installation and assembly time.
- telescopic doors for elevators which include two panels
- the invention is also applicable to two speed, four panel doors which open in the centre, and which basically consist of a pair of the described two door systems, opposed to one another, to provide double the opening.
Landscapes
- Elevator Door Apparatuses (AREA)
Description
- The present invention relates to telescopic door assemblies, and particularly though not exclusively to automatic telescopic doors for elevators.
- Conventional telescopic door assemblies for elevators are basically composed of a metal frame on which a series of main subassemblies are mounted. These sub-assemblies include;
more or less complex door profiles or panels for fire labyrinth needs,
door panel hanger supports equipped with rollers and counterrollers, and
two parallel tracks along which the rollers run. - Most of the conventional arrangements of this type of door use two individual tracks or sometimes a solid double track form, along each of which rollers and counterroller run, to form a complete unit. Adjustment of such door assemblies is difficult to attain because a large number of pieces have to be put in place and adjusted. Likewise, the structural lintel of the door unit has to be effected in such a way that it provides two or three different flat references in order to accurately fasten the two tracks in position, separators and screws also being needed to keep the tracks aligned.
- This type of configuration likewise gives rise to problems of parallelism and straightness of the two tracks and the lintel.
- Further, the operation of the door assembly is adversely affected by the cantilevered configuration of the rollers and counterrollers which require very strong shafts and hanger supports in order to overcome deformations produced by the overhanging doors when reopening after encountering an obstacle during closing.
- It should also be taken into account that in conventional doors the panels always have a tendency to be noisy and resonant during movement of the door, and in most cases a welded sandwiched configuration is necessary to overcome this resonance, with special noise absorbing paint or materials sometimes having to be used.
- Consequently, depending on the structure of the door assemblies of these conventional elevators, the main problems reside in cost and quality caused by the large number of separate elements used, as well as in the precision required to obtain parallel smooth movement of the telescopic elements, and in the noise produced during operation thereof.
- Normally, if the assembly has to be competitive from the cost point of view, the elements are made too weak, giving rise to problems of noise, jerks, and wear and tear of the panel surfaces, with horizontal scratches being produced by undesired contacts between moving parts.
- Finally, the assembly of this type of door, and the adjustment of the different elements, take a long time to complete, thus increasing the initial cost and also more importantly the cost of maintenance.
- The present invention is applicable to the type of above cited telescopic door assemblies and, as also known from US-A-4073034, provides a telescopic door assembly comprising a high speed door and a low speed door, each door being hung from a pair of spaced apart roller assemblies, with said roller assemblies running along a single common track. This provides for an assembly having relatively few components, which is quick and easy to install. Also the track can be connected to the door lintel in a simple manner, as there is no need to accurately position it with respect to another track. The invention is, however, different from and characterised over US-A-4073034, in that the roller assemblies of the low speed door are spaced apart in the direction of the track a greater distance than the roller assemblies of the high speed door, and in that the roller assemblies of the high speed door are located on the track between the roller assemblies of the low speed door.
- The door profiles may be identical to each other and be provided with suitable orthogonal foldings in their longitudinal edges to determine both a fire labyrinth configuration and a sealing between the profiles or doors.
- Also, thin metallic sheets may be provided centrally and longitudinally on the surfaces of the panels to provide soundproofing.
- The general door assembly may comprise suitable profiles which can be assembled together, so that they may be dismounted which makes it possible to effect the assembly or disassembly in situ.
- The invention provides for an assembly having a dismountable frame with active elements preassembled for a compact and easy transport from factory to the field with minimum manufacturing and erection time.
- Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which;
- Figure 1 shows a front view of an automatic two-leaf telescopic elevator door,
- Figure 2 shows a sectional view of a rolling assembly for the doors,
- Figure 3 shows an alternative or variant of the rolling assembly, and
- Figure 4 shows a schematic plan view of a cross-section of the two profiles corresponding to the two doors shown in Figure 1, each including a soundproofing element. One can see that the two door profiles are identical to each other even though they are connected to different hanger supports.
- Referring to Fig. 1, an elevator door assembly is shown, in which a
high speed door 2 and alow speed door 3 are hung from asingle track 1 mounted in thedoor frame lintel 18. - The
doors door frame stiles 17. - When in their open position, they telescope, one behind the other, so as to lie to the far right of the
track 1, such that their leading edges are flush with the door opening edge of theright hand stile 17. - The
low speed door 3 is suspended from one end of a hanger support 4. The hanger support 4 has a length, along thetrack 1, substantially equal to that of the door opening, i.e. the distance between the twopillars 17, and is slidably mounted on thetrack 1 byrolling assemblies - The
high speed door 2 is suspended from asecond hanger support 5 which, in this case, is of slightly less extent than thehigh speed door 2 itself. Thishanger support 5 is slidably mounted ontrack 1 byrolling assemblies rolling assemblies track 1 between the low speed doorrolling assemblies speed door hanger 5. - The
doors hauling cable 6 which passes through corresponding pulley-wheels, and is connected to acounterweight 7. - Clearly, when the
doors rolling assembly 5R liesadjacent rolling assembly 4R but when thedoors high speed door 2 moves relative to thelow speed door 3 so that, as seen in Fig. 1, therolling assembly 5L liesadjacent rolling assembly 4L, with the distance between the two right hand rollingassemblies doors right hand stile 17 without thedoor 2 projecting out from the frame further than thelow speed door 3. - So that the
doors rolling assemblies high speed door 2 are positioned inwardly from the ends ofhanger 5, a distance corresponding to the width of therolling assemblies - By using only a
single track 1, all the separators and fastening means typical of a two track assembly are eliminated, and thetrack 1 need only be supported at its ends by a very simple friction device. Nor does the door lintel need to provide two or three flat references to accurately fasten two tracks in parallel. - The supports 4 and 5 may move along the single track I by means of a rolling assembly similar to the ones shown in Figures 2 and 3 which are more fully disclosed in our co-pending patent application, of even date herewith, entitled "Telescopic Elevator Door Assembly".
- In Figure 2 one can see that the guide or sliding
track 1 has a rectangular section. As said, thetrack 1 may be fastened to the general structural frame by friction and without the need for machining or additional operations of welding perforations. This avoids the problem of aligning the two parallel tracks which are used in conventional doors, as well as eliminating the use of separators, screws, welding, etc. - The rolling element or system shown in Figure 2 is made up of a
box 8 which contains and protects all the rolling elements, thus avoiding the cantilever roller and counterroller configurations which are used in the conventional designs and which have an inherent flimsiness. - This rolling assembly comprises a single unit independent from the
track 1 which includes all the elements for its fastening to thehanger support 5 of the door panel. The assembly is constructed so as to produce sidewards movement without the need for any adjustments and to provide automatic attainment of the desired clearance between the doors for movement. -
Rollers 9 and 10 which rest precisely on the top and bottom edges of thetrack 1 are mounted inside thebox 8. These rollers are fastened by throughscrews box 8 and all its elements, to the respective hanger support 5 of the door. - The rigidity of this described configuration is advantageous in order to obtain smooth movement of the door panels without jerks and resistance when reopening the doors, in the event that they encounter obstacles during closing.
- A variant of this type of rolling assembly is shown in Figure 3, where one can see that the track consists of a
cylindrical bar 1′. In this case,ball bearings 13 are used as the roller means and are provided in acorresponding box 14, which is, in turn, fastened to thehanger support 5 of the door byscrews 15. - Both of these rolling or sliding systems allow a substantial reduction in assembly time and a total elimination of the adjustment time. The track unit, rolling assemblies and hanger supports of the doors can be manufactured and installed in the door frame lintel so that the same can be assembled in the factory and easily transported to the field.
- Finally Figure 4 shows a schematic cross section of the two
doors - In Figure 4 one can clearly see how it is possible to obtain a reduced moment of inertia for the door but maintain its rigidity by providing folds in both edges of the
panels - Each panel or profile of the
doors narrow metal panel 16 which is flat, very thin, and fastened centrally and longitudinally to eachpanel 2, so that it acts as a noise absorption resonant element. The fastening may be done with glue and the element may be kept in position in the top and bottom parts by screws which are used in turn to fasten the door panel to the hanger supports, as well as to the lower guide-shoe metallic support. - Overall, the described embodiment provides a telescopic door assembly including a frame which is easy to assemble and disassemble. It is easily transported to the field, and there may be a high degree of preassembly at the factory, all of which permits a considerable reduction in the installation and assembly time.
- Although the present description has referred to telescopic doors for elevators which include two panels, the invention is also applicable to two speed, four panel doors which open in the centre, and which basically consist of a pair of the described two door systems, opposed to one another, to provide double the opening.
- Likewise, the improvements are applicable to other door systems, such as of vehicles, and doors opening in the centre in which the described elements also make it possible to obtain most of said advantages.
Claims (7)
- A telescopic door assembly comprising a high speed door (2) and a low speed door (3), each door being hung from a pair of spaced apart roller assemblies (4L,4R;5L,5R), said roller assemblies running along a single common track (1), characterised in that the roller assemblies (4L,4R) of the low speed door (3) are spaced apart in the direction of the track (1) a greater distance than the roller assemblies (5L,5R) of the high speed door (2), and in that the roller assemblies (5L,5R) of the high speed door (2) are located on the track (1) between the roller assemblies (4L,4R) of the low speed door (3).
- A telescopic door assembly according to claim 1, wherein said high (2) and low (3) speed doors are connected to their respective roller assemblies by respective hanger supports (4,5), the hanger support (4) of the low speed door (3) having a greater extent in the direction of the track (1) than the hanger support (5) of the high speed door (2).
- A telescopic door assembly according to claim 2, wherein said low speed door hanger support (4) has a greater vertical extent both above and below said track (1) than said high speed door hanger support (5).
- A telescopic door assembly according to any preceding claim, wherein said high and low speed doors (2,3) are formed from identically shaped panels.
- A telescopic door assembly according to claim 4, wherein each said door (2,3) is formed from a panel having six orthogonal folds, two of said folds forming a vertical U-shaped channel extending along one side edge of the panel, and four of said folds forming a vertical column of rectangular cross-section along the opposite side edge of said panel, said column being open adjacent one corner such that said U-shaped channel of one door can interengage the column of another door.
- A telescopic door assembly according to any preceding claim, wherein a thin metallic sheet (16) is centrally and longitudinally attached to the surface of each said door (2,3) to provide soundproofing.
- A telescopic door assembly according to any preceding claim, wherein said assembly comprises a centrally opening door assembly having two sets of high and low speed doors (2,3) arranged opposite one another in substantially the same plane.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8902663 | 1989-07-27 | ||
ES8902663A ES2016720A6 (en) | 1989-07-27 | 1989-07-27 | Rolling apparatus for sliding of automatic expandable door of elevator |
ES8902662 | 1989-07-27 | ||
ES8902662A ES2016719A6 (en) | 1989-07-27 | 1989-07-27 | Automatic expandable door for elevator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0410776A2 EP0410776A2 (en) | 1991-01-30 |
EP0410776A3 EP0410776A3 (en) | 1991-10-30 |
EP0410776B1 true EP0410776B1 (en) | 1995-03-01 |
Family
ID=26154430
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900308244 Expired - Lifetime EP0410776B1 (en) | 1989-07-27 | 1990-07-27 | A telescopic door assembly |
EP19900308243 Expired - Lifetime EP0410775B1 (en) | 1989-07-27 | 1990-07-27 | Telescopic elevator door assembly |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900308243 Expired - Lifetime EP0410775B1 (en) | 1989-07-27 | 1990-07-27 | Telescopic elevator door assembly |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0410776B1 (en) |
DE (2) | DE69012915T2 (en) |
ES (2) | ES2064645T3 (en) |
HK (2) | HK32495A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2719573A1 (en) * | 1994-05-03 | 1995-11-10 | Axial Systems | Sliding doors fitted into walls to give access to lifts |
DE10132161C2 (en) * | 2001-07-03 | 2003-06-12 | Otis Elevator Co | Elevator door arrangement and door panel therefor |
DE10132163A1 (en) * | 2001-07-03 | 2003-01-23 | Otis Elevator Co | Lift door arrangement has door panels movable along support guide as linear bearing, stationary guide element with carriage, and drive mechanisms |
DE10132162C2 (en) * | 2001-07-03 | 2003-06-12 | Otis Elevator Co | Elevator door assembly for telescopic elevator doors |
BRPI0622012A2 (en) | 2006-09-18 | 2011-12-20 | Thyssenkrupp Elevator Ag | mechanism for elevator door operation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB535552A (en) * | 1939-04-25 | 1941-04-11 | Westinghouse Electric Int Co | Improvements in or relating to guides for sliding doors |
GB738846A (en) * | 1953-01-23 | 1955-10-19 | Express Lift Co Ltd | Improvements in or relating to door arrangements for lifts or the like |
US3426480A (en) * | 1967-07-07 | 1969-02-11 | Westinghouse Electric Corp | Door assembly |
IT958881B (en) * | 1972-05-16 | 1973-10-30 | Tesio Di Pietro Tesio | IMPROVEMENTS TO SLIDING DOORS FLIGHTS PARTICULARLY AUTOMATIC DOORS OF ELEVATORS GOODS LIFTS AND SIMILAR |
US4073034A (en) * | 1976-09-13 | 1978-02-14 | Dover Corporation | Door-supporting system for multipanel, side-opening doors |
US4099599A (en) * | 1977-02-01 | 1978-07-11 | Westinghouse Electric Corp. | Method and apparatus for fastening a door panel to a door operator mounted on an elevator car |
FR2595085B1 (en) * | 1986-03-03 | 1988-06-24 | Kone Ste Fse Ascenseurs | TELESCOPIC DOOR FOR ELEVATOR CAB |
-
1990
- 1990-07-27 EP EP19900308244 patent/EP0410776B1/en not_active Expired - Lifetime
- 1990-07-27 ES ES90308243T patent/ES2064645T3/en not_active Expired - Lifetime
- 1990-07-27 DE DE1990612915 patent/DE69012915T2/en not_active Expired - Fee Related
- 1990-07-27 ES ES90308244T patent/ES2071772T3/en not_active Expired - Lifetime
- 1990-07-27 EP EP19900308243 patent/EP0410775B1/en not_active Expired - Lifetime
- 1990-07-27 DE DE1990617299 patent/DE69017299T2/en not_active Expired - Fee Related
-
1995
- 1995-03-09 HK HK32495A patent/HK32495A/en not_active IP Right Cessation
- 1995-07-06 HK HK109195A patent/HK109195A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK32495A (en) | 1995-03-17 |
DE69012915T2 (en) | 1995-01-26 |
HK109195A (en) | 1995-07-14 |
DE69012915D1 (en) | 1994-11-03 |
EP0410776A3 (en) | 1991-10-30 |
ES2064645T3 (en) | 1995-02-01 |
DE69017299D1 (en) | 1995-04-06 |
EP0410776A2 (en) | 1991-01-30 |
EP0410775B1 (en) | 1994-09-28 |
ES2071772T3 (en) | 1995-07-01 |
DE69017299T2 (en) | 1995-07-20 |
EP0410775A3 (en) | 1991-10-23 |
EP0410775A2 (en) | 1991-01-30 |
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