JP2017190633A - Door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door structure in which a door main body is hardly displaced at closing, and can be easily moved at opening.SOLUTION: A door structure 1 comprises: a turnable door main body 2; a door frame part 3 having an opening part 30 which is opened and closed by a turn of the door main body 2; a plurality of lock magnets 22, 32; a pressing member 23; and a lock release magnet 24. The magnets 22, 32 are arranged at both the door main body 2 and the door frame 3, and lock the opening part by making suction forces act on themselves at the closing of the opening part 30 so as to maintain a closed state of the opening part 30. The pressing member 23 is arranged at the door main body 2, and moves to the door main body 2 at closing accompanied by the pressurization of an operator. The lock release magnet 24 splits the suction forces of the lock magnets 22, 32 in conjunction with the pressing member 23, makes reaction forces act on the lock magnets 22, 32, and releases the lock of the lock magnets 22, 32.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a door structure.

  Doors that open and close the opening for entering and exiting the building and each room inside it must use the magnetic attraction force to maintain the closed state and prevent the opening from being opened when the opening is closed. There is.

  For example, Patent Document 1 discloses a main body (door frame portion) having a predetermined opening, a door body (door main body) rotatably attached so as to open and close the opening, a main body and a door. There is disclosed a door opening / closing mechanism including a pair of magnets provided to face each other so as to face each other. The pair of magnets are formed in a disk shape, and N poles and S poles are alternately arranged in the circumferential direction of the magnets. In a normal state, the different poles of the pair of magnets face each other. A switching operation lever for rotating the magnet to shift the position of the magnetic pole is attached to the magnet on the main body side. When closing the opening, when the door body is rotated and brought closer to the main body, the different polarities of the two magnets face each other, so that the door body and the main body are attracted to each other. The closed state is maintained by this adsorption. When opening the opening from this state, the magnet on the main body side is rotated by operating the switching operation lever. Then, the same poles of both magnets face each other. Thereby, the repulsive forces act on the magnets attracted to each other, and the door body is separated from the main body.

Japanese Patent Laid-Open No. 11-107608

  In order to open the opening, the switching operation lever must be operated, which is very complicated. For example, it is conceivable to electrically shift the position of the magnetic pole without operating the switching operation lever, but the cost increases and the maintainability is inferior.

  The present invention has been made in view of the above circumstances, and one of its purposes is to provide a door structure in which the door main body is not easily displaced when closed, and can be easily moved when opened.

  A door structure according to an aspect of the present invention includes a rotatable door body, a door frame portion formed with an opening that is opened and closed by the rotation of the door body, a plurality of locking magnets, a pressing member, And an unlocking magnet. The locking magnet is provided on both the door main body and the door frame portion, and locks so as to maintain the closed state of the opening portion by applying an attractive force to each other when the opening portion is closed. The pressing member is provided on the door main body and moves with respect to the door main body at the time of closing in accordance with the pressing of the operator. The unlocking magnet divides the attractive force between the locking magnets in conjunction with the pressing member, and applies a repulsive force to each locking magnet to release the locking between the locking magnets.

  The door structure includes a magnet for locking, so that the door body can be hardly displaced when closed. Therefore, even if the space partitioned by the door main body becomes positive pressure or negative pressure, it is possible to suppress the flap of the door main body. That is, a latch and a striker for locking a general door are unnecessary. Therefore, since the door structure can be simplified, it is easy to achieve cost reduction, weight reduction, and productivity improvement. Moreover, by providing the magnet for unlocking, the door body can be easily moved when opened. This is because the door body can be moved while moving the pressing member by a series of operations of pushing the door body when opening the opening and releasing the lock between the locking magnets. In other words, a lever that is mechanically operated to open the opening is unnecessary, and it is not necessary to electrically operate the lever instead of mechanical operation. Therefore, it is easy to reduce the number of parts, reduce costs, and improve maintainability.

It is a perspective view showing the outline of the door structure concerning an embodiment. It is a fragmentary sectional view which shows the state cut | disconnected by the (II)-(II) cutting line of the door structure shown in FIG.

  An embodiment of the door structure of the present invention will be described below with reference to FIGS. 1 and 2. The same reference numerals in the figure indicate the same names.

《Door structure》
As shown in FIG. 1, the door structure 1 according to the embodiment includes a door body 2 that is rotatable, and a door frame 3 in which an opening 30 (FIG. 2) that is opened and closed by the rotation of the door body 2 is formed. With. The door main body 2 and the door frame portion 3 are provided respectively, and have a plurality of locking magnets 22 and 32 that are locked so as to maintain the closed state of the opening 30 by applying a suction force to each other. One of the features of the door structure 1 is that the door main body 2 moves with respect to the door main body 2 when closed by the operator, and a locking magnet 22 in conjunction with the pressing member 23. , 32 is provided with an unlocking magnet 24 for unlocking each other (FIG. 2). The door structure 1 has the same configuration on the front side (front side in FIG. 1) and the back side with respect to the center line in the thickness direction of the door body 2, and the door body 2 is moved by the same operation on the front side and the back side. Configured to open. Hereinafter, the front side of the door structure 1 will be described. In FIG. 1, for convenience of explanation, the floor surface 30 f is hatched. A thick arrow in FIG. 1 indicates a rotation direction of the door body 2. FIG. 2 is a cross-sectional view showing a state cut along a cutting line passing through both the lock magnets 22 and 32, the lock release magnet 24, and the pressing member 23. A solid line in FIG. 2 indicates a state before the pressing member 23 is pressed by the operator, and a two-dot chain line indicates a state after the pressing.

[Door body]
The door body 2 opens and closes the opening 30 (FIG. 2) of the door frame 3. The door body 2 is attached to the door frame portion 3 so as to be freely rotatable. The shape of the door body 2 is a rectangular shape.

  The support of the door body 2 is not particularly limited as long as it is configured to support one of the left and right side edges of the door body 2 with a rotation shaft (not shown). In FIG. 1, the right edge is supported by a rotating shaft, and the left edge is configured to be swingable. A hinge can be typically used to support the door body 2. The door body 2 may be supported by a double-opening spring hinge, and the door body 2 may be automatically closed by the force of the spring to close the opening 30 regardless of whether the door body 2 is opened inside or outside. .

  The rotation direction of the door body 2 is bidirectional between two spaces separated by the door body 2 when the opening 30 is closed (FIG. 1). The door main body 2 is rotated by the operator pressing the pressing member 23 provided on the door main body 2 regardless of whether the rotation direction is toward the two spaces. A fitting hole 230 for fitting each pressing member 23 is formed on each of the front and back surfaces of the door body 2 (FIG. 2).

  A through hole 21 is formed on the surface of the door body 2 facing the door frame 3 so that the door body 2 is not interposed between the lock magnets 22 and 32. The number and formation location of the through holes 21 can be appropriately selected according to the number and arrangement location of the main body side lock magnets 22. Here, the number of the through holes 21 is two, and the positions where the through holes 21 are formed are opposite to the rotation shafts at the upper and lower ends of the door body 2.

[Door frame]
The door frame 3 is formed with an opening 30 (FIG. 2) that is opened and closed by the rotation of the door body 2. The door frame 3 is attached to a wall 30w (FIG. 1) that partitions the building and each room inside the building. The opening 30 is an entrance of a building or each room. The door frame part 3 includes a building floor 30f. The shape of the door frame portion 3 is a shape corresponding to the shape of the door main body 2, and is a rectangular frame shape here. A rotation shaft (not shown) is fixed to the attachment position of the door main body 2 in the door frame portion 3. A recessed portion 31 for arranging the frame-side locking magnet 32 is formed at a position of the door frame portion 3 facing each through hole 21 of the door main body 2. Each recess 31 is formed in series in the opening 30.

[Main body side lock magnet / Frame side lock magnet]
The main body side locking magnet 22 and the frame side locking magnet 32 lock the door main body 2 so as to maintain the closed state of the opening 30 by applying an attractive force to each other when the opening 30 is closed (see FIG. 2). That is, the magnetic poles on the opposite sides of the main body side locking magnet 22 and the frame side locking magnet 32 are different from each other. Thereby, the displacement of the door main body 2 at the time of closing can be suppressed. The main body side locking magnet 22 is fixed to a fixing base (not shown) fixed to the door main body 2 at a position facing each through hole 21 inside the door main body 2. For example, the fixed base can be configured by fixing both ends of a long plate extending in the left-right direction of the door body 2 to the side surface of the door body 2. The fixing base is formed at a location where the unlocking magnet 24 can be interposed between the locking magnets 22 and 32 and a sufficient attractive force can be applied between the locking magnets 22 and 32. . The frame side lock magnet 32 is fixed to each recess 31 of the door frame 3. Thereby, although the attraction force acts between the main body side locking magnet 22 and the frame portion side locking magnet 32, they are not in direct contact with each other. Here, the main body side locking magnets 22 are provided at the upper and lower ends of the door main body 2, but they may be provided on the side surface of the door main body 2 located on the opposite side of the rotating shaft instead of the upper and lower ends. You may provide in both upper and lower ends and a side.

[Pressing member]
The pressing member 23 is fitted in the fitting hole 230 of the door main body 2 and moves with respect to the door main body 2 at the time of closing in accordance with the pressing of the operator. Immediately after the movement of the pressing member 23, the closed state is maintained by the both lock magnets 22 and 32, and the door body 2 does not move. When the pressing member 23 moves to some extent, the locks of the lock magnets 22 and 32 are released by the lock release magnet 24. At this time, the pressing member 23 stops moving with respect to the door main body 2 and moves the door main body 2 by the operator's pressing on the pressing member 23. The pressing member 23 is fixed to a later-described interlocking member 25 and is urged from the inner side to the outer side of the door body 2 by an urging member 26 described later.

[Unlocking magnet]
The unlocking magnet 24 unlocks the lock magnets 22 and 32 (FIG. 2). Specifically, the unlocking magnet 24, in conjunction with the pressing member 23, divides the attractive force between the two locking magnets 22, 32 and repels each of the both locking magnets 22, 32. Act. That is, the opposing magnetic poles of the unlocking magnet 24 and the main body side locking magnet 22 have the same polarity, and the opposing opposing magnetic poles of the unlocking magnet 24 and the frame side locking magnet 32 have the same polarity. It is. The unlocking magnet 24 is held by the holding portions 252 at the upper and lower ends of the interlocking member 25 described later, and when the pressing member 23 is moved by the operator's pressing, between the locking magnets 22 and 32. Intervened.

[Interlocking member]
The interlocking member 25 moves the unlocking magnet 24 in conjunction with the movement of the pressing member 23 when pressed by the operator (FIG. 2). The interlocking member 25 is provided inside the door body 2. The interlocking member 25 includes a base portion 251 that extends in the vertical direction and a holding portion 252 that is formed on each of the upper and lower ends of the base portion 251 and holds the unlocking magnet 24. Each holding part 252 is interposed between the locking magnets 22 and 32 when moved in conjunction with the pressing member 23 by the operator's pressing. Since the base 251 (the interlocking member 25) is larger than the fitting hole 230, the base 251 (the interlocking member 25) is caught on the inner surface of the door body 2 by the urging force of the urging member 26 described later. Thereby, the pressing member 23 can be positioned at the initial position. The initial position of the pressing member 23 is a position where both the lock magnets 22 and 32 are locked, and the position where the lock is not released by the lock release magnet 24.

[Biasing member]
The urging member 26 urges the pressing member 23 from the inner side to the outer side of the door body 2 when the operator's pressing on the pressing member 23 is released (FIG. 2). By this urging, the pressing member 23 is returned to the initial position. In this example, a compression spring is used as the urging member 26. One end side of the urging member 26 is fixed to an interlocking member 25 fixed to the pressing member 23, and the other end of the urging member 26 is fixed to a fixing member 27 fixed to the door body 2 through a through hole. ing.

[Fixing member]
The fixing member 27 transmits the pressing force of the operator to the pressing member 23 via the biasing member 26 and transmits the pressing force to the door body 2 (FIG. 2). Then, the door body 2 is moved. Here, the fixing member 27 is formed in a plate shape. The fixing member is configured, for example, by positioning a long plate extending in the left-right direction of the door body 2 at a substantially central portion in the thickness direction of the door body 2 and fixing both ends of the long plate to the side surface of the door body 2. be able to.

[Opening and closing procedure]
The procedure for opening and closing the door structure 1 will be described in the order of “closed → open” and “open → closed”.

(Closed to open)
When the opening 30 is closed, as shown by the solid line in FIG. 2, the pressing member 23 is urged to the outside of the door body 2 by the urging member 26, and the unlocking magnet 24 is between the locking magnets 22, 32. It is off. As described above, when the pressing member 23 is located at the initial position, the lock magnets 22 and 32 of the door body 2 and the door frame 3 are attracted to each other, and the closed state of the opening 30 is maintained. Thus, the door body 2 is locked.

  When the opening member 30 is opened and the pressing member 23 is pressed by the operator, the pressing member 23 moves to the inside of the door body 2 against the biasing of the biasing member 26 (FIG. 2). Two-dot chain line). At this time, the door body 2 hardly moves. This is because the door body 2 is maintained in the closed state by the both lock magnets 22 and 32. The interlocking member 25 moves inward of the door body 2 in conjunction with the pressing member 23, and the unlocking magnet 24 advances between the locking magnets 22 and 32. At this time, the unlocking magnet 24 divides the attractive force acting between the both locking magnets 22 and 32 and applies a repulsive force to each of the both locking magnets 22 and 32. As a result, the locks of the lock magnets 22 and 32 are released. When the urging member 26 reaches the compression limit or the vicinity thereof, the pressing member 23 does not move relative to the door body 2. Then, the pressing of the pressing member 23 by the operator is transmitted to the fixing member 27 via the biasing member 26 and further transmitted to the door main body 2 via the fixing member 27, so that the door main body 2 moves. The opening 30 is opened.

(Open → closed)
When the door main body 2 is supported by, for example, a spring hinge, when the pressing to the pressing member 23 is released, the door main body 2 moves in a direction to close the opening 30. At this time, the pressing member 23 is returned to the initial position by the biasing member 26. Thereby, the interlocking member 25 moves to the outside of the door body 2, and the unlocking magnet 24 moves backward from between the both locking magnets 22 and 32. When the door body 2 closes the opening 30, an attractive force acts between the lock magnets 22 and 32 to lock the door body 2 so as to maintain the closed state of the opening 30.

[Function and effect]
The door structure 1 according to the embodiment described above can achieve the following effects.

  (1) The door body 2 can be easily moved when opened. By providing the unlocking magnet 24 interlocked with the pressing member 23, the door body 2 can be moved while releasing the lock between the locking magnets 22 and 32 by a series of operations of pushing the door body 2. is there.

  (2) The door body 2 can be made difficult to displace when closed. It is because it can lock so that the closed state of the opening part 30 may be maintained by providing the magnets 22 and 32 for both locks. Therefore, even if the space partitioned by the door main body 2 becomes a positive pressure or a negative pressure, the flap of the door main body 2 can be suppressed.

  The present invention is not limited to these exemplifications, but is defined by the scope of the claims, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

  The door structure of the present invention can be suitably used for large and heavy doors that frequently come and go, such as factories.

DESCRIPTION OF SYMBOLS 1 Door structure 2 Door main body 21 Through-hole 22 Main body side locking magnet 23 Pressing member 230 Fitting hole 24 Unlocking magnet 25 Interlocking member 251 Base 252 Holding part 26 Energizing member 27 Fixing member 3 Door frame part 30 Opening part 30w Wall 30f Floor 31 Recess 32 Frame side lock magnet

Claims (1)

A pivotable door body,
A door frame formed with an opening that is opened and closed by rotation of the door body;
A plurality of magnets for locking that are provided on both the door body and the door frame portion, and that lock each other so as to maintain the closed state of the opening by applying a suction force when the opening is closed;
A pressing member that is provided on the door main body and moves with respect to the door main body at the time of closing according to an operator's pressing;
An unlocking magnet for releasing the lock between the locking magnets by separating the attractive force between the locking magnets in conjunction with the pressing member and applying a repulsive force to the locking magnets; Having door structure.

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