EP0241063B1 - Sliding-door appliance - Google Patents
Sliding-door appliance Download PDFInfo
- Publication number
- EP0241063B1 EP0241063B1 EP19870200412 EP87200412A EP0241063B1 EP 0241063 B1 EP0241063 B1 EP 0241063B1 EP 19870200412 EP19870200412 EP 19870200412 EP 87200412 A EP87200412 A EP 87200412A EP 0241063 B1 EP0241063 B1 EP 0241063B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- magnets
- sliding door
- appliance according
- steel strip
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/066—Details, e.g. suspension or supporting guides for wings supported at the bottom
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
- E05D15/0656—Bottom guides
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D2015/0695—Magnetic suspension or supporting means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/132—Doors
- E05Y2900/14—Doors disappearing in pockets of a wall, e.g. so-called pocket doors
Definitions
- the invention relates to a sliding door construction, which mainly consists of a door element positioned in a frame, which surrounds a doorway opening to which a hollow wall structure is adjacent (US-A-3 400 490).
- the sliding door can be included with a complete frame into a finished wall or separating structure, whereas the split hollow part together with the wall or separating structure is finished in such a way, that it is not visible, while the doorway opening is bordered by an upper beam and jamb posts.
- the present invention aims at the furnishing of a sliding door slipping easily with minimal resistance and carried by means of permanent magnets in combination with a steel strip, which is part of the frame, such that a convenient assembly will be possible, while maintenance and wear are inconsiderable.
- the sliding door construction according to the present invention has a frame, wherein the sliding door is positioned, with a passage opening as a conventional doorway, adjacent to a split hollow all part structure, both sides of which being clad by means of sheet material.
- the frame of the doorway passage and the hollow wall part constitute a complete entirety.
- the outer thickness of the hollow split wall part is in conformity with the wall size and the sheet material for the erection of said hollow split wall part can be plastered and finished together with the wall.
- the construction of the entire device is such that it can be prefabricated and that it can be erected as a whole.
- the door construction of the type as described in the introduction is provided according to the present invention with a hanging member, consisting of permanent magnets affixed in a slot at the top of the sliding door panel, serving as a means to keep said door in a steel profile, which is part of the frame.
- rollers or sets of rollers in bearings are provided which are running in a groove in the steel strip, in order to keep on the one side an air cleft between the magnet and the steel, on the other hand to guide the linear movement.
- the sliding door appliance in question is characterized according to the present invention in that the upper beam at its lower side is provided with a steel strip having a groove in the centre along its entire length, and that the door at its top side is provided with permanent magnets affixed in one line between two steel slot borders (pole sheets), the field of which extending beyond the door, such that said magnets exert a permanent force of attraction towards the steel strip, while a set of at least two rollers, which extend somewhat at the upper edge of the door and which run in the groove of the steel strip, enable the shifting of the door, while lateral turning of the door is prevented by rib-shaped guiding means along the doorway passage at the upper and/or lower edge of the door.
- the permanent magnets consist of longitudinal blocks of ferrite, lanthanide-iron or lanthanide-cobalt-alloy, which have been sintered and which are polarized in such a manner that the North and South pole are situated in the horizontal plane oppoiste to each other between the slot borders (pole sheets).
- the material consists of small blocks of Neodym-iron, samarium-cobalt or samarium-cobalt- iron in fine sintered shape.
- lanthanides or rare earth metals may also be components of the alloy.
- the block-shaped magnets are positioned alternately with mutual reverse poles between the steel slot borders and are divided from each other by smaller permanent magnets, which are magnetized in the horizontal direction and which fill part of the space between the block shaped larger magnets.
- the magnetic field is thereby directed in a more elevated way.
- the erection of the sliding door appliance is furthermore facilitated according to the invention, because the complete frame can be mounted, immured and finished during the raw construction and building up of a premise, without danger of filthiness of the shifting means.
- the sliding door as such can be mounted during the finishing of the premise by introducing it primarily in a diagonal position into the split hollow wall and then lifting it, until the strip will get within the attractive force of the magnets, whereafter the sliding door will remain in the hanging position and will be operational.
- the sliding door construction shown in the Figures 1-5 is assembled of a frame with a part (1) for inserting into a hollow split wall and a doorway passage (2), wherein the door element (3) can be moved linearly to and fro.
- the frame comprises a steel strip (4) and jamb posts (5) confining the doorway passage (2).
- the frame part (1) for the hollow split wall is for example clad at both sides with sheet material (6), which is comprised all around in a metal strip (4) and which is affixed by means of supporting lathings (7).
- This construction of supporting lathings and sheet material is for the purpose, that the entire frame will keep its shape and remain in this shape, such that the possibility of premanufacturing exists.
- the outer width of the hollow split wall coincides with the width of the wall (8), such that the sheet material (6) can be plastered together with the wall (8) and can be finished with a coating layer (9).
- the jamb posts (5) remain visible as a normal doorway frame.
- the magnets are separate and there are at least two rollers or sets (11), which are adjusted in height in such a manner, that horizontal shifting is possible, because a small distance is kept.
- the steel strip (4) has a profile such that the rollers are guided in a straight track.
- the inner side of the jamb posts (5) is provided with strips of bristles which are adjacent to the sliding door panel such that the sliding door is kept in its vertical position.
- a special conducting device can be applied at the underside as well.
- sliding door (3) a normal commercial door as well as a composition of special constructed door elements, for larger sizes or for particular requirements can be used.
- the magnetic hanging appliance can also be used for other movable separation walls or panels.
- the construction can be completed furthermore with an automatic service, for example by means of an electrical motor drive.
- the magnetic elements are sintered permanent paramagnetic polarized blocks. and they consist preferably of ferrite, samarium-cobalt- or neodym-iron-alloy or of other alloys of lanthanides, cobalt and/or iron.
- the tractive force of the magnet should be 10 to 15 kg higher than the weight of the door.
- An element of 1 kg neodym-iron has a coercive force such that a tractive force of 120 kg is obtained.
- the specific weight is 4.833.
Abstract
Description
- The invention relates to a sliding door construction, which mainly consists of a door element positioned in a frame, which surrounds a doorway opening to which a hollow wall structure is adjacent (US-A-3 400 490).
- The sliding door can be included with a complete frame into a finished wall or separating structure, whereas the split hollow part together with the wall or separating structure is finished in such a way, that it is not visible, while the doorway opening is bordered by an upper beam and jamb posts.
- The present invention aims at the furnishing of a sliding door slipping easily with minimal resistance and carried by means of permanent magnets in combination with a steel strip, which is part of the frame, such that a convenient assembly will be possible, while maintenance and wear are inconsiderable.
- According to French Patent 1580187 the use of electric magnetoes at the door panel and at the upper beam for opening and shutting of doors is known.
- By an interruption of the voltage intrusions can happen.
- The sliding door construction according to the present invention has a frame, wherein the sliding door is positioned, with a passage opening as a conventional doorway, adjacent to a split hollow all part structure, both sides of which being clad by means of sheet material.
- Due to the absence of relatively elevated rail construction, which for conventional sliding doors ought to be attainable by means of removable structures, the sizes of the visible side jambs moreover can be limited as those of a normal doorway jambs structure.
- The frame of the doorway passage and the hollow wall part constitute a complete entirety.
- The outer thickness of the hollow split wall part is in conformity with the wall size and the sheet material for the erection of said hollow split wall part can be plastered and finished together with the wall.
- The construction of the entire device is such that it can be prefabricated and that it can be erected as a whole.
- The door construction of the type as described in the introduction is provided according to the present invention with a hanging member, consisting of permanent magnets affixed in a slot at the top of the sliding door panel, serving as a means to keep said door in a steel profile, which is part of the frame.
- In order to enable the sliding in the top edge of the door, several rollers or sets of rollers in bearings are provided which are running in a groove in the steel strip, in order to keep on the one side an air cleft between the magnet and the steel, on the other hand to guide the linear movement.
- The sliding door appliance in question, as mentioned in the introduction, is characterized according to the present invention in that the upper beam at its lower side is provided with a steel strip having a groove in the centre along its entire length, and that the door at its top side is provided with permanent magnets affixed in one line between two steel slot borders (pole sheets), the field of which extending beyond the door, such that said magnets exert a permanent force of attraction towards the steel strip, while a set of at least two rollers, which extend somewhat at the upper edge of the door and which run in the groove of the steel strip, enable the shifting of the door, while lateral turning of the door is prevented by rib-shaped guiding means along the doorway passage at the upper and/or lower edge of the door.
- The permanent magnets consist of longitudinal blocks of ferrite, lanthanide-iron or lanthanide-cobalt-alloy, which have been sintered and which are polarized in such a manner that the North and South pole are situated in the horizontal plane oppoiste to each other between the slot borders (pole sheets).
- Preferably the material consists of small blocks of Neodym-iron, samarium-cobalt or samarium-cobalt- iron in fine sintered shape.
- Other lanthanides (or rare earth metals) may also be components of the alloy.
- Preferably the block-shaped magnets are positioned alternately with mutual reverse poles between the steel slot borders and are divided from each other by smaller permanent magnets, which are magnetized in the horizontal direction and which fill part of the space between the block shaped larger magnets.
- The magnetic field is thereby directed in a more elevated way.
- The use of the sliding door according to the present invention is facilitated because other mechanical bearing components are missing.
- The erection of the sliding door appliance is furthermore facilitated according to the invention, because the complete frame can be mounted, immured and finished during the raw construction and building up of a premise, without danger of filthiness of the shifting means.
- The sliding door as such can be mounted during the finishing of the premise by introducing it primarily in a diagonal position into the split hollow wall and then lifting it, until the strip will get within the attractive force of the magnets, whereafter the sliding door will remain in the hanging position and will be operational.
- In contrast with the conventional sliding door systems the method of placing is entirely in conformity with that of normal door or window frames.
- The invention is further explained by showing an example of an embodiment.
- In the annexed figures 1-5 the following is shown:
- Figure 1 is a partially exploded perspective view of the sliding door construction according to the invention.
- Figure 2 shows a manner of positioning of the magnets and of the rollers at the top edge of the door.
- Figure 3 is a vertical cross section, wherein magnets and the groove for the guiding rollers are depicted.
- Figure 4 is a vertical cross section of the top side of the door at the place of one of the rollers.
- Figure 5 shows the manner of positioning of the magnets, which is preferred.
- The sliding door construction shown in the Figures 1-5 is assembled of a frame with a part (1) for inserting into a hollow split wall and a doorway passage (2), wherein the door element (3) can be moved linearly to and fro. The frame comprises a steel strip (4) and jamb posts (5) confining the doorway passage (2).
- The frame part (1) for the hollow split wall is for example clad at both sides with sheet material (6), which is comprised all around in a metal strip (4) and which is affixed by means of supporting lathings (7).
- This construction of supporting lathings and sheet material is for the purpose, that the entire frame will keep its shape and remain in this shape, such that the possibility of premanufacturing exists.
- The outer width of the hollow split wall coincides with the width of the wall (8), such that the sheet material (6) can be plastered together with the wall (8) and can be finished with a coating layer (9).
- The jamb posts (5) remain visible as a normal doorway frame.
- At the top edge of the door (3) a groove is fraised wherein permanent paramagnetic elements (10) are positioned between pole sheets (two steel slot borders) (13).
- In order to prevent that the magnets (10) at the steel strip could impede the horizontal motion, the magnets are separate and there are at least two rollers or sets (11), which are adjusted in height in such a manner, that horizontal shifting is possible, because a small distance is kept.
- In order to maintain the linear motion, the steel strip (4) has a profile such that the rollers are guided in a straight track.
- This is effected by means of the groove (12) indicated in Figures 2 and 3.
- The inner side of the jamb posts (5) is provided with strips of bristles which are adjacent to the sliding door panel such that the sliding door is kept in its vertical position.
- A special conducting device can be applied at the underside as well.
- For the sliding door (3) a normal commercial door as well as a composition of special constructed door elements, for larger sizes or for particular requirements can be used.
- The invention is not restricted to the embodiments as described above.
- The magnetic hanging appliance can also be used for other movable separation walls or panels.
- The construction can be completed furthermore with an automatic service, for example by means of an electrical motor drive.
- The magnetic elements are sintered permanent paramagnetic polarized blocks. and they consist preferably of ferrite, samarium-cobalt- or neodym-iron-alloy or of other alloys of lanthanides, cobalt and/or iron.
- These materials are availabps in the shape of bars or profiles (casting mold, sintered and polished).
- The following data are given as examples and the invention is not restricted to these.
- Weight of commercially available doors, sizes 201 x83 cm:
- light poplar-wood door: 16 to 18.5 kg
- full chip wood door: 45 kg
- fire-retardant door: 50 kg
- noise-insulating door: 50 kg
- X-ray insulating door: 64 kg
- bullet-resistant door: 80 kg
- The tractive force of the magnet should be 10 to 15 kg higher than the weight of the door.
- An element of 1 kg neodym-iron has a coercive force such that a tractive force of 120 kg is obtained.
- The specific weight is 4.833.
-
- Length of bar: 25.0 or 46.0 cm
- Width of bar: 1.5 cm
- Height of bar: 1.5 cm
- With a block length of 80 cm (width x height= 1.5x 1.5 cm) a door can be carried of 90 kg max. (tractice force=105 kg).
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87200412T ATE54192T1 (en) | 1986-03-10 | 1987-03-06 | SLIDING DOOR DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8600609 | 1986-03-10 | ||
NL8600609A NL192997C (en) | 1986-03-10 | 1986-03-10 | Sliding door construction. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0241063A1 EP0241063A1 (en) | 1987-10-14 |
EP0241063B1 true EP0241063B1 (en) | 1990-06-27 |
Family
ID=19847683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870200412 Expired - Lifetime EP0241063B1 (en) | 1986-03-10 | 1987-03-06 | Sliding-door appliance |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0241063B1 (en) |
AT (1) | ATE54192T1 (en) |
DE (1) | DE3763439D1 (en) |
NL (1) | NL192997C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004050334C5 (en) * | 2004-10-17 | 2009-11-26 | Dorma Gmbh + Co. Kg | Sliding door with a magnetic support with a non-tilting guide element |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10257583B3 (en) * | 2002-12-09 | 2004-09-09 | Dorma Gmbh + Co. Kg | Sliding door or the like |
EP1647657B1 (en) * | 2004-10-17 | 2017-09-20 | dormakaba Deutschland GmbH | Sliding door with a magnetic supporting mechanism with adjustment of the supporting force |
US7059017B1 (en) * | 2005-01-04 | 2006-06-13 | Rosko Peter J | Sliding door assembly for track, step plate, roller, guide and constraint systems |
NL1028583C2 (en) * | 2005-03-21 | 2006-10-30 | P3W Invest B V | Sliding door construction using a magnetic field. |
DE202010004307U1 (en) * | 2010-03-26 | 2011-08-26 | Rehau Ag + Co. | closure assembly |
US10113348B2 (en) | 2016-11-28 | 2018-10-30 | Tony Lam | Magnetic levitating door |
US10597920B1 (en) | 2019-05-10 | 2020-03-24 | Tony Lam | Magnetic levitating door |
US11021900B2 (en) | 2019-05-10 | 2021-06-01 | Tony Lam | Magnetic levitating door |
IT202000010246A1 (en) * | 2020-05-07 | 2021-11-07 | Stefano Mantovan | ARMORED SLIDING SYSTEM FOR BUILDINGS AND RELATED INSTALLATION |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL253580A (en) * | ||||
GB1089605A (en) * | 1965-09-17 | 1967-11-01 | Weather Seal Inc | Magnetically supported sliding doors and panels |
US3334442A (en) * | 1965-10-21 | 1967-08-08 | Bastian Blessing Co | Glide door mounting |
FR1492091A (en) * | 1966-04-20 | 1967-08-18 | Electronique & Automatisme Sa | Advanced device for actuating sliding panels |
US3400490A (en) * | 1966-10-14 | 1968-09-10 | Nat Lock Co | Pocket door assembly |
FR1580187A (en) * | 1968-03-22 | 1969-09-05 | ||
DE3663376D1 (en) * | 1985-03-20 | 1989-06-22 | Shinko Electric Co Ltd | DOOR APPARATUS |
IT1185294B (en) * | 1985-07-24 | 1987-11-04 | Antonio Salvarani | CABINET STRUCTURE WITH SLIDING DOORS |
-
1986
- 1986-03-10 NL NL8600609A patent/NL192997C/en not_active IP Right Cessation
-
1987
- 1987-03-06 DE DE8787200412T patent/DE3763439D1/en not_active Expired - Lifetime
- 1987-03-06 EP EP19870200412 patent/EP0241063B1/en not_active Expired - Lifetime
- 1987-03-06 AT AT87200412T patent/ATE54192T1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004050334C5 (en) * | 2004-10-17 | 2009-11-26 | Dorma Gmbh + Co. Kg | Sliding door with a magnetic support with a non-tilting guide element |
Also Published As
Publication number | Publication date |
---|---|
NL192997B (en) | 1998-03-02 |
DE3763439D1 (en) | 1990-08-02 |
ATE54192T1 (en) | 1990-07-15 |
NL192997C (en) | 1998-07-03 |
EP0241063A1 (en) | 1987-10-14 |
NL8600609A (en) | 1987-10-01 |
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