Door with magnetic seal
The door system employs a dual magnet mechanism to ensure precise activation of the guillotine only when the door is closed, addressing the challenge of providing effective acoustic insulation and ease of use for both hinged and sliding doors.
Patent Information
- Application Number
- JP2022522281
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-10-14
- Filing Date
- 2020-10-14
- Publication Date
- 2025-05-14
- Estimated Expiration
- 2040-10-14
AI Technical Summary
Existing door sealing solutions fail to provide effective acoustic insulation while maintaining ease of use and compatibility with both hinged and sliding doors, often requiring bulky and delicate mechanisms that increase resistance and wear.
A door system utilizing a dual series of magnets to precisely adjust forces during the guillotine's extension and retraction, ensuring accurate activation only when the door is fully closed, thus providing a safe, accurate acoustic seal with reduced user effort and minimal wear.
The solution achieves improved acoustic insulation, reduced resistance during door operation, and extended lifespan of the sealing mechanism, while maintaining a compact and ergonomic design compatible with both hinged and sliding doors.
Smart Images
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Abstract
Description
[Technical field]
[0001] The present invention relates to doors having leaves which, when closed in a door frame or fixture, are provided with seals for sealing, mainly acoustic sealing. In particular, the invention relates to doors having leaves with so-called magnetic seals, in other words draft-stops (or Zugluft-Stopp in German) or magnetically actuated sealing guillotines.
[0002] In particular, the invention relates to a solution adapted to doors with hinged leaves, especially doors with sliding leaves.
[0003] Furthermore, the invention relates to a solution adapted to doors of the so-called movable type, i.e. not of masonry construction but formed by a metal and glass frame, of partition walls conventionally for delimiting rooms in offices.
[0004] Especially in doors consisting of movable glass walls, a sealing solution that is not cumbersome both in terms of its volume and its low visibility for the end user of the office, while at the same time providing improved acoustic insulation, is highly desired. [Background technology]
[0005] Known seals or draft-stops, called draft or unfinished openings, are primarily designed to close small leaf openings that remain between a door and its abutment element or the floor, thus limiting the passage of air and thus obtaining, for example, good thermal insulation.
[0006] However, there is a particular demand to have adequate acoustic insulation, especially in office partition walls, especially if the door is intended to define a common area or an area for meetings.
[0007] In contrast to the requirement for acoustic insulation, there is also a strong desire to limit the effort exerted by the user in opening and closing the door, as opposed to the operation of damping devices associated with the closing action to avoid impacts, and mechanisms that operate guillotines or draft-stops. Naturally, the ease with which a door can be opened and closed, particularly if it is of the sliding type, makes it difficult to obtain adequate acoustic insulation between the door and its fixture or door frame.
[0008] The solution described in document JP2005009278 relates to a seal that is able to suppress the passage of air currents and moisture through the floor draft of the door by closing the space between the surface of the floor and the door. The proposed solution relates to a door cooperating with a perfectly flat floor, i.e. a floor that does not differ in level along the extension of the doorstep.
[0009] In this solution, the sealing mechanism is pushed downwards to close the space between the door and the floor.
[0010] The seal is activated by a magnetic push button that is attracted to the door frame when the door is closed against the door frame. By pressing the push button, the position of the first magnet is shifted so that a pole with the same polarity is positioned facing the magnet located on the seal, repelling the seal and causing it to drop towards the floor.
[0011] The pair of magnets in the push button must be strong enough to overcome the magnetic forces between the two pairs of magnets facing each other and arranged on the door and seal, in addition to the force of the lateral return spring of the push button. Furthermore, the actuation of the push button must be greater than the return spring of one of the seals in the raised position. Thus, the forces to be overcome in the leaf opening step, superimposed on the forces to be overcome of the closing or soft-close systems usually provided for doors with a certain weight, such as glass and acoustic doors, and which act simultaneously, greatly limit the convenience of the door, i.e. the ergonomics of the door itself, and therefore the comfortable use of the door.
[0012] Overall, the known solutions are bulky and their operation is delicate. For example, in case of an unintentional impact on the door, the magnet of the push button may move and thus activate the seal coming out of the leaf, especially if the door is of the sliding type, and therefore are unreliable in use. To reduce such risks, it is necessary to provide elastic means (return springs of the push button and seal) with high force, which further increases the inconvenience in using the door.
[0013] Therefore, there is still a strong need for a solution that allows to reduce the increased resistance of the door opening caused by the device for gentle closing, in particular avoiding resilient means and actuating push buttons that cause imprecision in operation, forces contrasting the movement of the door by resisting the opening and closing of the door, and an increased volume that is unacceptable for glass doors that have high visibility and are usually used to define offices.
[0014] The solution known from document EP 0 451 732 B1 provides two interrelated magnetic bars, one of which is mounted on the door leaf and the other of which is fixedly mounted on a door step fixed to the floor, so that when the door is closed, one is pulled out by mutual magnetic attraction like a slide and placed over the other magnetic rod so that the space under the door is closed.
[0015] The moving element which induces the sealing is a magnetic rod having a profile formed by a non-rigid, and therefore slightly soft, magnetizable material, the magnetic rod extending over the entire length of the leaf.
[0016] With respect to a cross section of the longitudinal extension of the magnet, the left half of the magnet facing the open side of the door is the region of the S pole and the right half is the region of the N pole.
[0017] The magnetic rod is received by a groove in the profile of the door leaf and is thus a sliding part and movable downwards.
[0018] The magnetic rod is associated with a flat magnetic rod placed on the floor above the door step, which has opposite polarity in cross section, i.e. the south pole portion is next to the fixture and the north pole portion is on the open side of the leaf.
[0019] The door step profile is fixed to the floor by means of screws.
[0020] In this known solution, the door step may become an unacceptable obstruction in a space adapted for persons with disabilities.
[0021] Furthermore, a magnetic material seal adapted to slide on its seat is provided on the door leaf, and softening the seal to have an insulating effect makes it delicate and prone to wear over time, thus losing its precise operation and insulating characteristics. In particular, the sliding action of the magnetic seal against the wall of the seat wears its lateral sides, making its downward and upward operation less precise, and when the degree of wear is great, it leads to jamming of the movement.
[0022] Furthermore, it is difficult or impossible to use this known solution for sliding doors.
[0023] The magnets are transverse and oriented with constant course of the poles over the entire transverse section, from the seal start to the seal end. When applied to a sliding door, at the start of the transverse sliding of the door, the seal overlaps the magnetic rod on the floor and starts to descend, limiting the possibility of the leaf sliding itself. Similarly, the sliding door in a fully released step is unlikely to completely overlap with the fixed module of the side wall, this is to ensure that the handle may be placed on the leaf, the distance of the handle from the fixed upright is in any case kept within a few tens of centimeters to avoid accidents and to realize maneuverability and visibility of the position for disabled people. This makes it impossible for the two magnetic rods to overlap and obtain a sealing of the space located under the sliding door.
[0024] Other solutions are known from documents JP2005009278, WO2018128824A1, EP0784144, US5396734, EP0216022, DE3708176, EP0451732, WO8101166, FR1363546, US4703586, DE3708176, DE102017127642, DE102016122265, EP3290627, DE4010994. However, none of these solutions are adapted to both hinged and sliding doors and do not allow for ergonomic operation as well as limited volume and limited visibility.
[0025] There is therefore still a strong need for a solution adapted to both doors with hinged leaves and sliding doors, which is simple but safe as it only operates when the leaf is in the closed position, covers the entire door opening and, in addition, reduces wear over time and is simple and safe to operate. Summary of the Invention
[0026] It is an object of the present invention to provide a door which is able to overcome the drawbacks of the known prior art solutions and at the same time to meet the above mentioned unmet requirements.
[0027] These and other objects and advantages are achieved by a door according to claim 1.
[0028] Further embodiments are the subject of the dependent claims.
[0029] With the proposed solution a door may be obtained that is adapted both to solutions with hinged leaves and to solutions with sliding leaves, simple but safe as it only operates when the leaves are in the closed position, thus covering the entire door opening without clogging or wearing out the seal, plus reducing wear over time for simple and safe operation.
[0030] By providing a dual series of magnets, the force used in both extending and retracting the guillotine may be adjusted in an extremely precise manner, so that operation of the guillotine is almost unnoticeable when opening and closing the door leaf.
[0031] With the proposed solution, the guillotine may be actuated, i.e. the guillotine may be withdrawn, so that only when the second magnet aligns with the interacting element, the leaf acts as an acoustic seal against the fixture or wall frame, thus making the withdrawal movement of the guillotine extremely accurate, resulting in a safe and accurate acoustic seal with reduced forces perceived by the user. The separation, i.e. interruption, of the interaction between the second magnet and the interacting element occurs in a precise and rapid manner, for example for a guillotine facing the floor, since the second magnet moves laterally away from the interacting element rapidly. In other words, with the proposed solution, the guillotine is actuated only when the door leaf coincides with the closed position, thus preventing the guillotine or a seal arranged thereon from sliding, thus allowing only a proper seal rest on the abutment.
[0032] The proposed solution avoids obstacles such as door steps being placed on the floor, thus avoiding tripping elements for a user crossing an open door opening.
[0033] Furthermore, the proposed solution is very compact, i.e. it is not bulky and does not have elastic elements, and is therefore very simple to assemble and maintain.
[0034] The proposed solution makes it possible to maintain the plane of the door leaf very close to the plane defined by the fixture or door frame, reducing the overall volume of the door, especially in the case of the sliding leaf type.
[0035] Particularly in doors with sliding leaves, the proposed solution allows the use of a narrow, space-saving and precise sliding foot.
[0036] Further characteristics and advantages of the door of the invention will become apparent from the following description of preferred embodiments thereof, given by way of non-limiting example, with reference to the accompanying drawings, in which: [Brief description of the drawings]
[0037] [Figure 1] FIG. 1 shows an axonometric projection of a door having a sliding leaf associated with a door frame with a detached portion, the sliding leaf also having a detached portion, the door leaf being partly constituted by glass and having a frame in which a seat is formed, the seat accommodating a sliding guillotine on three sides in an extensible manner when the leaf is in the closed position facing the door frame. [Diagram 2]FIG. 1 shows an axonometric cross-sectional view of a detail of a double-pane sliding leaf with its rear edge facing the upright part of the door frame, showing the first moment when a guillotine housed in a seat provided in the leaf starts its sliding so as to abut against a second magnet interaction element, where the second magnet interaction element is a strip made of a material with high magnetic interaction. [Diagram 3] FIG. 2 is an axonometric view of a guillotine adapted to interface with a second magnet interacting element of an upright portion of a door frame, with a separated portion showing a plurality of first magnets secured to the guillotine and adapted for retraction thereof in a seat of the door leaf, and a plurality of second magnets adapted to retract the guillotine when the guillotine and the second magnet interacting element in the door frame are aligned. [Figure 4] In conjunction with FIG. 5 two cross sections of two details of the leaf are shown, the rear edge of the leaf being illustrated at two instants, the first instant being the instant when the guillotine housed in a seat provided on the leaf is not facing the upright part of the door frame and at least one first magnet is attracted by a third magnet arranged on the bottom wall of the seat of the leaf, thus maintaining the guillotine in a fully retracted position, and the second instant being the instant when the guillotine is fully extended and abuts against a second magnet interaction element, where the second magnet interaction element is a strip formed from a material with high magnetic interaction and attracts at least one second magnet. [Diagram 5] In conjunction with FIG. 4 two cross sections of two details of the leaf are shown, the rear edge of the leaf being illustrated at two instants, the first instant being the instant when the guillotine housed in a seat provided on the leaf is not facing the upright part of the door frame and at least one first magnet is attracted by a third magnet arranged on the bottom wall of the seat of the leaf, thus maintaining the guillotine in a fully retracted position, and the second instant being the instant when the guillotine is fully extended and abuts against a second magnet interaction element, where the second magnet interaction element is a strip formed from a material with high magnetic interaction and attracts at least one second magnet. [Figure 6] FIG. 2 is a side view of a door having a sliding leaf in a partially open position. [Figure 7] In the areas indicated by 7a, 7b and 7c in FIG. 6, a cross section of the edge of the leaf inserted into the glass wall and the door frame is shown. [Figure 8] In the areas indicated by 8a and 8b in FIG. 6, a cross section of the edge of the leaf inserted into the glass wall and the door frame is shown. [Figure 9] FIG. 2 shows a side view of a door with a sliding leaf in a fully closed position. [Figure 10] In the areas indicated at 10a, 10b and 10c in FIG. 9, a cross section of the edge of the leaf inserted into the glass wall and the door frame is shown. [Figure 11] In the areas indicated at 11a and 11b in FIG. 9, a cross section of the edge of the leaf inserted into the glass wall and the door frame is shown. [Figure 12] 1 shows a side view and a top view of a close-to-floor detail of a door having a sliding leaf associated with a glass wall in an open position. [Figure 13] 1 shows a side view and a top view of a close-to-floor detail of a door having a sliding leaf associated with a glass wall in an open position. [Figure 14] FIG. 2 is an axonometric projection of the guillotine with the separated portion facing two second magnet interaction elements, where the second magnet interaction elements are two magnetic slots recessed into the floor. [Figure 15] Cross sections of the lower edge of a sliding leaf different from those of Figures 16 and 17, where the first cross section shows a second magnet positioned next to the sliding foot, the second cross section shows the first magnet facing a third magnet to effect a retracting operation for the guillotine, and the third cross section shows a guide pin for the guillotine adapted to guide the sliding movement of the guillotine on the seat. [Figure 16]Cross sections of the lower edge of a sliding leaf different from those of Figures 15 and 17, where the first cross section shows a second magnet positioned next to the sliding foot, the second cross section shows the first magnet facing a third magnet to provide a retracting operation for the guillotine, and the third cross section shows a guide pin for the guillotine adapted to guide the sliding movement of the guillotine on the seat. [Figure 17] Cross sections of the lower edge of a sliding leaf different from those of Figures 15 and 16, where the first cross section shows a second magnet positioned next to the sliding foot, the second cross section shows the first magnet facing a third magnet to provide a retracting operation for the guillotine, and the third cross section shows a guide pin for the guillotine adapted to guide the sliding movement of the guillotine on the seat. [Figure 18] FIG. 2 shows a side view of a door with a sliding leaf in a partially open position. [Figure 19] A cross section of the edge of the leaf facing the floor is shown in the areas indicated at 19a and 19b in FIG. [Figure 20] A cross section of the edge of the leaf facing the floor is shown in the area indicated at 20a in FIG. [Figure 21] FIG. 2 shows a side view of a door with a sliding leaf in a fully closed position. [Figure 22] A cross section of the edge of the leaf facing the floor is shown in the areas indicated at 22a and 22b in FIG. [Figure 23] A cross section of the edge of the leaf facing the floor is shown in the area indicated at 23a in FIG. [Figure 24] FIG. 2 shows a side view of a detail of a door with a sliding leaf in an open position. [Diagram 25] 25 shows a cross section of the edge of the leaf facing the upper rung of the door frame of the detail in FIG. 24 with the guillotine in the retracted position. [Figure 26] 1 shows a cross section of the edge of the leaf facing the upper rung of the door frame when the guillotine is in the extended position and the leaf is in a fully closed position. [Figure 27] FIG. 2 is an axonometric projection of the guillotine of the upper edge of the leaf facing the ledge of the door frame with the separated parts. [Figure 28] FIG. 1 is an axonometric projection of the guillotine of the upper edge of the leaf facing the rung of the door frame, together with a separated portion, according to a further embodiment in which the second magnet interaction element (8) is an electromagnet (26) separate from the first magnet (A) and the second magnet (B) and arranged to attract the second magnet (B) and act on it to bring about a retracting movement of the guillotine (7). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0038] In a typical embodiment, the door 1 comprises: a door frame or door fastening 2 having at least one abutment element 3; a door leaf 4 that is movable between an open position in which the door leaf 4 opens an opening 5 defined by a door frame or door fixture 2 and a closed position in which the door leaf 4 comes to rest against an abutment element 3 of the door frame or door fixture 2 so as to close the opening 5; At least one guillotine sheet or sheet 6 provided in a door leaf 4 or door frame or door fastener 2; at least one sliding element or guillotine 7 made of a material with low aluminium magnetic effect and slidably accommodated in the seat 6 so as to move from a retracted position to an extended position and vice versa along the guillotine sliding direction XX; At least one first magnet A having poles N, S aligned with or parallel to the guillotine slide direction XX; The first magnet A is arranged integrally with the guillotine 7, The first magnet A provides a magnetic actuation of the attraction of the guillotine 7 into the seat 6; at least one second magnet B separated from the first magnet A and having poles N, S aligned with or parallel to the guillotine sliding direction XX; The second magnet B is arranged integral with the guillotine 7, a second magnet interaction element 8 separated by the first magnet A and the second magnet B and arranged to interact with the second magnet B, and arranged integrally with the abutment element 3 to attract the second magnet B to effect an ejection action on the guillotine 7; the second magnet B is arranged to push the guillotine 7 out of the sheet 6 only when the second magnet B is arranged substantially facing the second magnet interaction element 8 or when the guillotine sliding direction XX intersects with the second magnet interaction element 8; The at least one first magnet A provides a lower overall magnetic motion than the magnetic motion provided overall by the at least one second magnet B.
[0039] According to an embodiment, the door frame or door fitting 4 has a seat wall 9 which defines the seat 6. At least one third magnet C is arranged integrally with the seat wall 9.
[0040] At least one first magnet A always faces at least one third magnet C, thus permanently attracting the guillotine to the inside of the sheet 6.
[0041] According to an embodiment, the door leaf 4 has at least one leaf edge 10, here a floor leaf edge, adapted to face the abutment element 3, here a floor 11. The seat 6 is provided on the floor leaf edge 10. The guillotine 7 has a guillotine abutment surface 12 arranged facing the second magnet interaction element 8. The guillotine abutment surface 12 has an acoustic seal 13 adapted to be arranged between the guillotine 7 and the abutment element 3.
[0042] According to one embodiment, the seat 6 defines a guillotine removal and storage direction, or guillotine slide direction XX, which is arranged transversely to the plane defined by the leaf 4 of the door 1.
[0043] According to one embodiment, the seat defines a guillotine removal and storage direction, or guillotine slide direction XX, which is arranged parallel to the plane defined by the leaf 4 of the door 1.
[0044] According to one embodiment, the seat 6 has a seat wall 9 which defines a lower seat wall portion 16. The guillotine 7 is a "U" shaped profile 14 having a profile cross-sectional opening 15, which is received in the seat 6 such that the profile cross-sectional opening 15 faces the lower seat wall portion 16.
[0045] According to an embodiment, the at least one first magnet A is a series of first magnets A distributed along the longitudinal extension of the guillotine 7 .
[0046] According to an embodiment, the at least one second magnet B is a series of second magnets B arranged at least close to the longitudinal guillotine end 17 of the guillotine 7 .
[0047] According to one embodiment, the first magnet A has a predefined polarity N / S. The second magnet B has a predefined polarity N / S. When placed in the guillotine 7, the polarity N / S arrangement of the first magnet A is opposite to the polarity arrangement N / S of the second magnet B.
[0048] According to an embodiment, the door leaf 4 is a door leaf which slides on at least one guide 20 provided on the door frame or door fixture 2, so that the door leaf 4 can slide laterally relative to the door frame or door fixture 2. Furthermore, at least one sliding foot 18 is provided which is fixed to an abutment element 3, for example the floor 11. The door frame or door fixture 2 has a foot seat 19 adapted to receive the sliding foot 18 so as to guide the sliding of the door leaf 4.
[0049] According to one embodiment, the second magnet interaction element 8 comprises a magnetic slot 21 .
[0050] According to one embodiment, the second magnet interaction element 8 comprises a magnetic slot 21 embedded in the abutment element 2 , for example the floor 11 .
[0051] According to an embodiment, the door frame or door fixing 2 has a longitudinal frame side 22. The guillotine has at least one second magnet B which is fixed to the guillotine and which forms a boundary with a second magnet interaction element 8 having a strip 23 formed by a material with high magnetic interaction, for example iron, only when the door leaf 4 is in the closed position of the door 1.
[0052] According to one embodiment, the guillotine has at least one second magnet B fixed to it. The door frame or door fixture 2 is positioned across the length of the floor 11. The second magnet interaction element 8 has a polarity that is oppositely positioned relative to the polarity of the at least one second magnet B and has at least one magnetic slot 21 recessed into the floor 11. The second magnet B is fixed to the guillotine and forms a boundary with the at least one magnetic slot 21 only when the door leaf 4 is in the closed position of the door 1.
[0053] According to one embodiment, the door frame or door fixture 2 has a lateral frame or rung 24. The second magnet interacting element 8 has at least one magnetic slot 21 embedded in the lateral frame or rung 24, with a polarity that is arranged opposite to the polarity of the at least one second magnet B. The second magnet B is fixed to the guillotine and forms a boundary with the at least one magnetic slot 21 only when the door leaf 4 is in the closed position of the door 1.
[0054] According to one embodiment, the door frame or door fixture 2 and the guillotine 7 are constructed from a material with low magnetic interaction, such as aluminum.
[0055] According to one embodiment, the second magnet B exerts a magnetic attraction force that is at least four times greater than the magnetic force exerted by the first magnet A.
[0056] According to an embodiment, the first magnet A is a neodymium magnet and / or the second magnet B is also a neodymium magnet and / or the third magnet C is a neodymium magnet and / or the fourth magnet is a neodymium magnet.
[0057] Below follows, by way of example, a description of the operation of a door having a sliding leaf formed in accordance with the present invention.
[0058] This embodiment provides a glass partition wall that is soundproof, for example by providing double glazing and a frame formed from an aluminium extrusion.
[0059] Furthermore, the door 1 has a door frame 2 made from an aluminium extrusion. Similarly, the door leaf is made from double glazing fixed to the frame, the frame obtaining a leaf edge 10 also made from an aluminium extrusion.
[0060] These leaf edges 10 have different sheets 6 on their lower side facing the floor 11 , on their vertical side facing the partition and door frame 2 and on their upper side facing the partition frame and door frame 2 .
[0061] Each seat contains a guillotine 78 formed as described above and which in particular contains a neodymium magnet.
[0062] The lower transverse aluminium profile of the double glazing at the leaf edge 10 is formed in its lower part oriented towards the floor 11 to take up the sheet 6 and to accommodate within it a second formed aluminium profile which forms the support body of the guillotine. The second aluminium profile is "U" shaped and accommodates within it two series of magnets A, B, whose polarities are oriented oppositely relative to each other and have different forces of magnetic attraction or repulsion. A third magnet C is placed on the bottom side of the sheet and the first magnet, which is oriented to attract the first magnet A, which is placed in the second "U" shaped aluminium profile, preferably in the central part of said profile.
[0063] Alignment or guide pins 25 for the guillotine are provided in the transverse aluminium profiles of the leaf edge 10, in particular in the sheet 6. The pins act as guides allowing the longitudinal sliding of a second U-shaped aluminium profile in the sheet 6 which is formed in the lower rail of the leaf edge 10.
[0064] Only when the leaf is in the fully closed position, the magnetic slot 21, which is oriented to attract the second U-shaped aluminum profile, is placed on the floor 11. At that moment, the second magnet B brings the second U-shaped aluminum profile towards the magnetic slot 21 (which includes a fourth permanent magnet D, each oriented with the opposite polarity to attract the second magnet B). The action of the attractive force between the second magnet B and the fourth magnet D overcomes the attractive force of the first magnet A, which opposes the removal of the guillotine 7, towards the third magnet C, which is placed on the bottom side of the seat 6. Thus, allowing the extension of the guillotine 7 and the guillotine 7 to rest completely on the floor 11, thus ensuring the complete closing of the lateral gap under the door leaf 4.
[0065] When the user opening the door leaf 4 moves the second magnet B relative to the fourth magnet D, the first magnet A also prevails as a movement towards the third magnet C, retracting the guillotine 7 inside the seat 6 and lifting it off the floor 11. Here, the direction XX of removal and retraction of the guillotine 7 is longitudinal or substantially perpendicular to the floor in which the two magnetic slots 21 are embedded.
[0066] The guillotine 7 arranged on the upper transverse rail arranged on the leaf edge 10 operates in a similar manner, except that the removal and retraction direction XX of the guillotine 7 is substantially perpendicular to the plane in which the door leaf 4 is arranged, or in other words substantially parallel to the plane of the floor 11.
[0067] As regards the vertical abutting upright of the door frame 2 at the side where the quick release lock is usually provided, this has a continuous magnet, which slides in its seat of the door frame 2 so as to slide laterally along a stroke sufficient to abut against the leaf in the closed position, while being limited by a stop formed in the door frame at the height of the H-shaped leaf. This magnet forms a magnetic seal and is made of a substantially soft magnetic material. The leaf edge 10 alternatively has a steel insert in the part abutting against the vertical abutting upright of the door frame, which has a space in the width of the leaf thickness or in the cross section of its aluminium extrusion to accommodate a rod or steel strip 23. In the closing step of the leaf 4, said magnetic seal adheres completely over the entire length of the edge of the leaf where the steel strip 23 is provided.
[0068] With regard to the longitudinal sliding side, i.e. the side of the leaf that is rearward relative to the handle when the leaf is in the closing step, a housing is formed on the longitudinal aluminium extrusion of the leaf edge 10, or "back" edge of the leaf edge 4, over the entire height of the profile forming the seat 5 for the guillotine 7, and the seat 6 receives a second U-shaped aluminium profile forming the support body of the guillotine 7, the outer shape of which is adapted to receive a continuous seal over its entire length. Two series of magnets A, B are fixed in the U-shaped profile, the first series with magnet A having a smaller force than the second series (second magnet B) and located opposite it. The first magnet A is attracted by the second magnet C fixed on the bottom side of the seat 6, so that the guillotine 7 is attracted in the seat 6 as long as the second magnet B brings about its movement, thus allowing the free movement of the leaf during the closing and opening strokes and the entire time that the leaf remains open. The second series of magnets B has a greater magnetic force than the first series of magnets A, so that in the closed door position, when the guillotine faces the longitudinal uprights of the door frame 2, or the sliding side of the door frame provided with the hinges or steel strip 23 inserted in its seat, the U-shaped profile is stressed by the second magnet B, the guillotine 7 abuts against the steel strip 23 and the seal 13 abuts over the entire longitudinal height of the leaf 4. When the user acts on the leaf to open, the second magnet B is no longer aligned with the steel strip 23 and the first magnet A, which is therefore permanently attracted by the third magnet C fixed on the bottom side of the seat 6, attracts the guillotine into the seat 6, thus retracting, and the leaf 4 can now slide freely.
[0069] The present invention relates to a door having a sliding leaf having one or more of the above mentioned characteristics.
[0070] The invention also relates to a door having a hinged leaf having one or more of the above mentioned characteristics.
[0071] The invention also relates to leaves for wardrobes and furnishing containers, where the main function of the guillotine is a sealing effect against dust, which is a major problem in wardrobes and walk-in closets with sliding and / or hinged leaves.
[0072] According to an embodiment, the first magnet (A) is an electromagnet connected to an electrical activation and deactivation circuit 27, which may, but need not, have for example a switch 29 controllable by a user to activate the first electromagnet (A). Thus, the first electromagnet (A) may replace the first magnet (A) described in the preceding description.
[0073] According to an embodiment, the first electromagnet (A) interacts with a third electromagnet (C) arranged at the position of the third magnet (C) described in the above description, or alternatively with the third magnet (C) or with an element made of materials having mutual magnetic interaction, such as, for example, steel, without departing from the scope of the present invention.
[0074] According to an embodiment, the second magnet (B) is an electromagnet connected to an electrical activation and deactivation circuit 27, which may, but need not, have for example a switch 29 controllable by a user to activate the second electromagnet (B). Thus, the second electromagnet (B) may be replaced by the second magnet (B) described in the preceding description.
[0075] According to an embodiment, the second electromagnet (A) interacts with a fourth electromagnet (D) arranged at the position of the fourth magnet (D) described in the above description, or alternatively with a fourth magnet (D) or an element made of materials having mutual magnetic interaction, such as, for example, steel, without departing from the scope of the present invention.
[0076] According to one embodiment, the at least one second magnet interaction element (8) is an electromagnet (26), separated by a first magnet or electromagnet (A) and a second magnet or electromagnet (B), arranged to interact with the second magnet or electromagnet (B), and arranged integrally with the abutment element (3) to attract the second magnet or electromagnet (B) to effect an ejection action relative to the guillotine (7).
[0077] According to one embodiment, the at least one second magnet interaction element is an electromagnet 26 connected to an electrical activation and deactivation circuit 27, which is for example, but not necessarily, connected to a control unit 28 and has a switch 29 controllable by a user to activate the at least one second magnet interaction element (8).
[0078] According to one embodiment, the second magnet interaction element is an electromagnet (8) having a magnetic slot 21 or an electromagnet slot.
[0079] According to one embodiment, the second magnet interaction element is an electromagnet (8) having a magnetic slot 21 integrated into the abutment element (2), for example the floor (11).
[0080] By providing an electromagnet, faster control and mechanical actuation can be obtained, and potentially even guillotine actuation by means of a sensor or remote control.
[0081] The electromagnet allows the door to be used without operating the guillotine in everyday use, or alternatively, may be actuated remotely from a workstation or conference table at the start of a meeting or personal phone call.
[0082] According to one embodiment, the electromagnet is connected to a home automation (domotics) system to activate and close the guillotine by switching from one setting scenario to another. [Explanation of symbols]
[0083] 1 Door 2 Door frame or door fixture 3 Contact elements 4 Door Leaf or Leaf 5 Door opening 6 Guillotine sheet or sheet 7. Slide element or guillotine 8 Second magnet interaction element or electromagnet 9 Sheet Wall 10 Reef Edge 11 Beds 12 Guillotine contact surface 13 Acoustic seal 14 Profile 15 Profile Section Opening 16 Seat wall lower part 17 Vertical guillotine end 18 Slide foot 19 Foot sheet 20 Slide Leaf Guide 21 Magnetic slots or elements or electromagnets formed by materials with high magnetic interaction 22 Vertical frame side 23 Strips made of materials with high magnetic interaction 24 Transverse frames or crosspieces 25 Guillotine Guide Pin 26 Electromagnet 27 Electrical Circuits 28 Control Unit 29 Switch XX Guillotine slide direction A First magnet or electromagnet NN pole SS pole B Second magnet or electromagnet C. A third magnet or electromagnet or an element formed by a material with high magnetic interaction D. An element formed by a fourth magnet or a magnetic slot or an electromagnet or a material with high magnetic interaction
Claims
1. A door frame or door fastener (2) having at least one abutment element (3), a door leaf (4) movable between an open position for opening an opening (5) defined by a door frame or door fixture (2) and a closed position for stopping against an abutment element (3) of the door frame or door fixture (2) for closing the opening (5); At least one seat (6) provided in the door leaf (4) or in the door frame or in the door fastener (2), At least one sliding element (7) made of a material having a low magnetic effect and slidably accommodated in the seat (6) so as to move from a retracted position to an extended position and vice versa along a sliding direction (X-X); At least one first magnet (A) with poles (N, S) aligned or parallel to the sliding direction (XX), A first magnet or electromagnet (A) arranged integrally with the sliding element (7), At least one first magnet or electromagnet (A) which provides a magnetic actuation of the attraction of the sliding element (7) into the seat (6); At least one second magnet or electromagnet (B) separated from the first magnet or electromagnet (A) and having poles (N, S) aligned or parallel to the sliding direction (X-X), At least one second magnet or electromagnet (B), which is arranged integrally with the sliding element (7), at least one second magnet interaction element or electromagnet (8) separated by the first magnet or electromagnet (A) and the second magnet or electromagnet (B) and arranged to interact with the second magnet or electromagnet (B) and arranged integrally with the abutment element (3) to attract the second magnet or electromagnet (B) to effect an ejection action on the sliding element (7); Equipped with a second magnet or electromagnet (B) arranged to push the sliding element (7) out of the sheet (6) only when the second magnet or electromagnet (B) is arranged substantially facing the second magnet interaction element or electromagnet (8) or when the sliding direction (X-X) intersects with the second magnet interaction element or electromagnet (8); A door, wherein at least one first magnet or electromagnet (A) provides a magnetic motion that is generally lower than the magnetic motion provided generally by at least one second magnet or electromagnet (B).
2. A seat wall (9) defining the seat (6); At least one third magnet (C) arranged integrally with the seat wall (9); and at least one first magnet (A) always faces at least one third magnet (C), thus permanently attracting the sliding element to the interior of the seat (6); or A seat wall (9) defining the seat (6); At least one third electromagnet or magnetic field closing element (C) arranged integrally with the seat wall (9); and At least one first magnet or electromagnet (A) always faces at least one third magnet or magnetic field closing element (C), thus permanently attracting the sliding element to the interior of the seat (6); and / or at least one second magnet interaction element (8) is an electromagnet, separated by the first magnet (A) and the second magnet (B), arranged to interact with the second magnet (B), and arranged integrally with the abutment element (3) to attract the second magnet (B) to effect an ejection action on the sliding element (7); 2. The door according to claim 1, wherein the second magnet or electromagnet (B) is arranged to push the sliding element (7) out of the sheet (6) only when the second magnet or electromagnet (B) is arranged substantially facing the second magnet interaction element (8) or when the sliding direction (X-X) intersects with the second magnet interaction element (8).
3. The door leaf (4) has at least one floor leaf edge (10) adapted to face the abutment element (3), The abutment element is a floor (11), The sheet (6) is provided on the floor leaf edge (10), the slide element (7) has an abutment surface (12) arranged facing the second magnet interaction element or electromagnet (8); 3. The door according to claim 1 or 2, wherein the abutment surface (12) comprises an acoustic seal (13) adapted to be placed between the sliding element (7) and the abutment element (3).
4. the seat (6) defines a sliding direction (X-X), the sliding direction (X-X) being arranged transversely to the plane defined by the leaf (4) of the door (1); or Door according to any one of claims 1 to 3, wherein the sheet defines a sliding direction (XX), the sliding direction (XX) being arranged parallel to a plane defined by the leaves (4) of the door (1).
5. The seat (6) has a seat wall (9) defining a seat wall lower portion (16); 5. The door according to claim 1, wherein the sliding element (7) is a "U"-shaped profile (14) having a profile cross-sectional opening (15), the profile (14) being received in the sheet (6) in such a way that the profile cross-sectional opening (15) faces the lower sheet wall (16).
6. The at least one first magnet or electromagnet (A) is a series of first magnets or electromagnets (A) distributed along the longitudinal extension of the sliding element (7), and / or 6. The door according to any one of claims 1 to 5, wherein the at least one second magnet or electromagnet (B) is a series of second magnets or electromagnets (B) arranged at least near the longitudinal ends (17) of the sliding element (7).
7. The first magnet (A) has a predetermined polarity (N / S), The second magnet (B) has a predetermined polarity (N / S), When placed in the sliding element (7), the polarity (N / S) arrangement of the first magnet (A) is opposite to the polarity arrangement (N / S) of the second magnet (B), or The first magnet (A) is an electromagnet, The second magnet (B) is a magnetic field closing element, 7. The door according to any one of claims 1 to 6, wherein the first electromagnet (A) when activated generates a magnetic attraction force with the magnetic field closing element.
8. a door leaf (4) that slides on at least one guide (20) provided on the door frame or door fixture (2), so that the door leaf (4) can slide laterally relative to the door frame or door fixture (2); At least one slide foot (18) is provided which is fixed to the abutment element (3), 8. A door according to any one of claims 1 to 7, wherein the door frame or door fixture (2) has a foot seat (19) adapted to receive at least one sliding foot (18) to guide the sliding movement of the door leaf (4).
9. The second magnet interaction element or electromagnet (8) has a magnetic slot (21) or a magnetic field closing element or electromagnet; and / or A second magnet interaction element or electromagnet (8) has a magnetic slot (21) embedded in the abutment element (2); The door according to any one of claims 1 to 8, wherein the second magnet interaction element or electromagnet (8) comprises a magnetic slot (21) having an electromagnet.
10. The door frame or door fixture (2) has longitudinal frame sides (22), 10. The door according to any one of claims 1 to 9, wherein the sliding element comprises at least one second magnet or electromagnet (B) fixed thereto and which forms an interface with a second magnet interaction element (8) having a strip (23) formed by steel only when the door leaf (4) is in the closed position of the door (1).
11. The slide element has at least one second magnet or electromagnet (B) fixed to the slide element; A door frame or door fixture (2) is positioned across the length of the floor (11); The second magnet interaction element or electromagnet (8) has a polarity that is arranged opposite to the polarity of the at least one second magnet or electromagnet (B) and has at least one magnetic slot (21) embedded in the bed (11) or an element formed by a material with high magnetic interaction; 11. The door according to any one of claims 1 to 10, wherein a second magnet or electromagnet (B) is fixed to the sliding element and forms a boundary with at least one magnetic slot (21) or an element formed by a material with high magnetic interaction only when the door leaf (4) is in the closed position of the door (1).
12. The door frame or door fixture (2) has a transverse frame or stile (24), The second magnet interaction element or electromagnet (8) has a polarity arranged opposite to the polarity of the at least one second magnet (B) and has at least one magnetic slot (21) embedded in a transverse frame or rung (24) or an element formed by a material with high magnetic interaction; 12. The door according to any one of claims 1 to 11, wherein a second magnet or electromagnet (B) is fixed to the sliding element and forms a boundary with the at least one magnetic slot (21) only when the door leaf (4) is in the closed position of the door (1).
13. Door according to any one of the preceding claims, wherein the door frame or door fixture (2) and the sliding element (7) are made of aluminium.
14. 14. The door of any one of claims 1 to 13, wherein the second magnet or electromagnet (B) provides a magnetic attractive force action that is at least four times greater than the magnetic action provided by the first magnet or electromagnet (A).
Citation Information
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