JP2015132129A - Door magnetically holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door magnetically holding device capable of automatically magnetically holding a door at a predetermined position with a comparatively strong force without performing a specific operation.SOLUTION: A door magnetically holding device comprises: a magnetic material plate 5 attached to an upper surface of a bottom plate to be vertically oscillatable; and a device body 6 attached to a side surface of a door 2. The device body 6 comprises: a magnet 64; and a magnetic material yoke 62. The magnetic material yoke 62 comprises: a first component piece 62a magnetically attached on an upper surface of the magnet 64; and a second component piece 62b extended downwards from a door side edge of the first component piece 62a. A lower end of the second component piece 62b is extended downwards than a lower surface of the magnet 64. The magnetic material plate 5 is vertically oscillatable between a storage attitude along the upper surface of the bottom plate, and a magnetically attached attitude at which the magnetic material plate 5 is magnetically attached in a state of surface contact with the lower surface of the magnet 64, and a tip part of the magnetic material plate 5 is magnetically attached at a lower end part of the second component piece 62b of the magnetic material yoke 62.

Description

  The present invention relates to a door magnetizing apparatus that can be used as a door stop or a magnet catch to magnetically hold a door at a predetermined position.

  In Patent Document 1 below, when the door is opened to the open position, the tip of a magnetic plate (adsorption plate) attached to the floor surface so as to be able to swing up and down is the lower part of the magnet (S pole) and the yoke (N The door stop fitting for the indoor door of a building is disclosed, in which the relative positions of the lower surface of the magnet, the lower surface of the holding piece, and the lower end of the yoke short piece are determined. ing.

JP 2000-204824 A JP 2010-59759 A

  However, in the conventional door-to-door fitting, the magnetic plate rises obliquely with respect to the magnet in the magnetically attached state, and the tip end portion is locked in the gap between the magnet and the yoke. The holding force with respect to the force for rotating the door in the direction of pulling it away from the magnetic plate is relatively weak, and it is necessary to provide a separate door locking bracket in order to hold the door in the open position.

  On the other hand, Patent Document 2 discloses a door stop in which a collar portion with which a magnetic plate is engaged by pressing a pressed portion is provided in a magnet housing. Although the door can be securely held in the fully open position by the pressing operation, it is necessary to incorporate a pressing operation mechanism such as a compression coil spring, which increases the number of parts and increases the cost, and can operate the pressed portion. There is a problem that it is complicated.

  Furthermore, when trying to use the conventional door stop structure as a magnet catch for holding the door in the fully closed position, the structure of Patent Document 1 has a problem that the magnetic force holding force is weak, and the patent In the structure of Document 2, since the pressed portion cannot be pressed from the opposite side of the door, it cannot be used as a magnetic catch such as a shelf door.

  Therefore, an object of the present invention is to provide a door magnetizing apparatus capable of automatically magnetizing and holding a door with a relatively strong force at a predetermined position without performing a specific operation.

  In order to achieve the above object, the present invention takes the following technical means.

  That is, the present invention includes a magnetic plate attached to the bottom surface of a structure having a door so as to be swingable up and down, and an apparatus main body attached to a side surface of the door. A door magnetizing apparatus that magnetizes and holds a door at a predetermined position by a magnet having the magnet, wherein the apparatus body further includes a magnetic yoke, and the yoke includes a first component piece magnetized on the upper surface of the magnet; A second component piece extending downward from a door side edge of the first component piece, and a lower end portion of the second component piece extending below a lower surface of the magnet, The body plate is magnetically attached with the storage posture along the bottom surface and the top surface of the magnetic plate in surface contact with the bottom surface of the magnet, and the tip of the magnetic plate is at the lower end of the second component piece of the yoke. Mounted on the bottom so that it can swing up and down between the magnetized position And it is characterized in that it is.

  According to the door magnetic adhesion apparatus of the present invention, when the door is rotated to a predetermined position, the magnet lifts the magnetic plate from the storage posture to the magnetic attachment posture by the magnet, so that the yoke and the magnetic plate are connected to the upper and lower surfaces of the magnet. Since the tip of the magnetic plate is magnetically attached to the second component piece of the yoke, the yoke and the magnetic plate as a whole are the upper and lower surfaces of the magnet (S pole and N Functioning as a U-shaped yoke connecting the poles), a strong magnetic adhesion force is generated between the magnetic plate and the yoke, and the door can be held at a predetermined position by a relatively strong magnetic force.

  In the door magnetizing apparatus according to the present invention, a bent piece is provided at the tip of the magnetic plate, and the tip surface of the bent piece comes into surface contact with the side surface of the second component piece in the magnetizing posture. It can be. According to this, the magnetic adhesion force between the tip of the magnetic plate and the yoke can be further increased.

  Further, it is preferable that the magnetic plate is pivotally supported with a predetermined play with respect to the bottom surface. According to this, when the door is slightly rotated from a predetermined position, the tip of the magnetic plate is separated from the yoke while the magnetic plate is magnetically attached to the lower surface of the magnet in a surface contact state. In order to rotate the plate from a predetermined position, it is necessary to have a force that exceeds the total magnetic force of the magnetic force between the magnetic plate and the yoke and the friction force between the magnetic plate and the magnet. The power can be further increased. That is, if there is no play in the shaft support of the magnetic plate, the top surface of the magnetic plate rotates relative to the bottom surface of the magnet just by applying an external force to rotate the door from a predetermined position, and the surface contact When the state is released, the magnetism holding force is greatly reduced. However, in the present invention, the magnetic plate can be slid back and forth with respect to the magnet while being in surface contact with the lower surface of the magnet. The power can be increased.

  The predetermined position may be a door closing position, and the door magnetizing apparatus of the present invention can be used as a magnet catch for holding the door in the fully closed position in furniture, other shelves, storage, or the like.

  According to the door magnetizing apparatus of the present invention, the door can be used not only as a door stop but also as a magnet catch, and the door is automatically operated with a relatively strong force without requiring a specific operation at the fully open position or the fully closed position. The magnetic adhesion holding force can be automatically released by opening and closing the door with a force stronger than the magnetic adhesion holding force.

It is action | operation explanatory sectional drawing of a door magnetic adhesion apparatus when a door is a fully closed position. It is action | operation explanatory sectional drawing of a door magnetic adhesion apparatus when a door is a position slightly opened from the fully closed position. It is action | operation explanatory sectional drawing of a door magnetic adhesion apparatus when a door is opened largely from a fully closed position. It is the disassembled perspective view seen from the front side of the apparatus main body of a door magnetic welding apparatus. It is the disassembled perspective view seen from the apparatus main body of the door magnetic welding apparatus.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.

  1 to 5 show a door magnetic attachment device 1 according to an embodiment of the present invention, and the door magnetic attachment device 1 is provided at an opening of furniture (a structure having a door) so as to be freely opened and closed. It is used as a magnet catch for holding the door 2 in the fully closed position.

  The door magnetizing apparatus 1 includes a magnetic plate 5 that is attached to the bottom surface of the furniture (the upper surface of the bottom plate 3) via a pedestal 4 so as to be swingable up and down, and a device that is attached and fixed near the lower portion of the inner side surface of the door 2. And a main body 6.

  The pedestal 4 is fixed to the bottom plate 3 by mounting screws (not shown). The pedestal 4 has engaging recesses 41 for supporting the magnetic plate 5 on both the left and right sides of the magnetic plate 5. Is provided.

  The magnetic plate 5 is a hard member made of a ferromagnetic material such as iron having a substantially rectangular plate shape in plan view, and is provided with a shaft portion 51 protruding left and right at the base end portion (front end portion). When the shaft portion 51 engages with the engagement recess 41, the front end portion (rear end portion) of the magnetic body plate 5 is pivotally supported so as to swing up and down. The engaging recess 41 has an opening shape larger than the cross-sectional shape of the shaft portion 51, whereby the magnetic plate 5 is pivotally supported with a predetermined play. Note that the shaft support structure is not limited to that of the illustrated embodiment, and a separate support shaft may be provided, and the shaft portion protruding from the base 4 side is engaged with the base portion of the magnetic plate 5. May be.

  Further, the front end portion of the magnetic plate 5 is bent downward to form a bent piece 52, and the lower end surface of the bent piece 52 is substantially flush with the lower surface of the base portion of the plate 5. .

  The apparatus main body 6 includes a housing 61 that is fixed to the door 2 with mounting screws (not shown). The housing 61 is made of a non-magnetic material such as a synthetic resin material integrally including a mounting seat portion 61a and a magnet storage portion 61b that protrudes inward from the mounting seat portion 61a. The magnet storage part 61b is structured to be inclined downward as it moves inward (front) of the door, and a magnet storage recess 61c is provided on the lower surface thereof. Moreover, the apparatus main body 6 is comprised by the cavity shape which opened back (door side), and the magnet accommodating recessed part 61c is penetrated and formed from the lower surface of the magnet accommodating part 61b to the cavity part. A yoke 62 made of a ferromagnetic material having an L-shaped cross section is fitted into the cavity of the apparatus body 6 from the rear side, and a synthetic resin holding member 63 for holding the yoke 62 is provided from the rear side of the yoke 62. It is inserted.

  In this embodiment, the magnet housing recess 61c has a cylindrical shape, and a columnar magnet 64 is fitted in the magnet housing recess 61c, and the lower surface of the magnet 64 is flush with the lower surface of the magnet housing portion 61b. The upper surface of 64 is flush with the upper surface of the magnet housing 61b, and the lower surface of the magnet 64 is also attached so as to incline downward toward the front side.

  The yoke 62 includes a first component piece 62a magnetically attached to the upper surface of the magnet 64 in a surface contact state, and a second component extending downward from a door side edge (rear side edge) of the first component piece. The component piece 62b is integrally provided to have an L-shaped cross section. The second component piece 62b is in contact with the rear side surface of the magnet housing portion 61b and extends below the lower surfaces of the magnet housing portion 61b and the magnet 64.

  An opening 61d is formed between the lower surface of the magnet housing 61b of the housing 61 and the mounting seat 61a, and the front surface of the tip of the second component piece 62b of the yoke 62 is located on the front side from the opening 61d. It is exposed to.

  The plate 5 is magnetically attached with the storage posture along the upper surface (bottom surface) of the bottom plate 3 as shown in FIG. 3 and the upper surface of the plate 5 in surface contact with the lower surface of the magnet 64 as shown in FIG. The top end of the plate 5 is magnetically attached while being in contact with the lower end of the second component piece 62b of the yoke 62. Installed. Further, in the magnetic attachment posture, the front end surface of the bent piece 52 at the front end portion of the plate 5 is magnetically attached to the front side surface of the second component piece 62b in a surface contact state.

  According to the door magnetic adhesion apparatus 1 according to the present embodiment, when the door 2 is gradually closed from the state shown in FIG. 3, the plate 5 is attracted by the magnetic force of the magnet 64 and swings upward as shown in FIG. The upper surface of the plate 5 is magnetically attached to the lower surface of the magnet 64 in a surface contact state. As a result, a frictional resistance is generated between the magnet 64 and the plate 5, so that a cushioning action can be generated even when the door 2 is vigorously closed.

  When the door 2 is further closed, as shown in FIG. 1, the tip of the plate 5 is magnetically attached to the lower end of the second component piece 62b of the yoke 62, and the yoke 62 and the plate 5 as a whole are the S poles of the magnet 64. Functions as a U-shaped yoke for short-circuiting the N pole and the N pole, and a strong magnetic adhesion force is generated between the yoke 62 and the plate 5. The door 2 can be held with a relatively strong force in the closed position by the magnetic force between the yoke 62 and the plate 5 and the frictional force due to the magnetic force between the plate 5 and the magnet 64.

  Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed in design. For example, it is also possible to use a door magnetic attachment device as a door stop for attaching a magnetic plate to the bottom surface of a building (a structure having a door), that is, the floor surface, and magnetically holding the door in the fully open position. . It is also possible to assemble the first component piece and the second component piece of the yoke as separate members to the housing.

Claims (4)

A magnetic plate (5) attached to a bottom surface of a structure having a door (2) so as to be swingable up and down, and an apparatus main body (6) attached to a side surface of the door (2). 6) A door magnetizing apparatus (1) for magnetizing and holding the door (2) in a predetermined position by a magnet (64) having upper and lower surfaces provided in 6),
The apparatus body (6) further includes a magnetic yoke (62). The yoke (62) includes a first component piece (62a) magnetically attached to the upper surface of the magnet (64), and the first component piece. A second component piece (62b) extending downward from the door side edge of (62a), the lower end portion of the second component piece (62b) extending below the lower surface of the magnet (64). Has been established,
The magnetic plate (5) is magnetically attached with the storage posture along the bottom surface and the upper surface of the magnetic plate (5) being in surface contact with the lower surface of the magnet (64) and the magnetic plate (5). The door magnetic attachment is characterized in that the front end portion is attached to the bottom face so as to be swingable up and down between the magnetic attachment posture magnetically attached to the lower end portion of the second component piece (62b) of the yoke (62). apparatus.   2. The door magnetic attachment device according to claim 1, wherein a bent piece (52) is provided at a distal end portion of the magnetic body plate (5), and a distal end surface of the bent piece (52) is in the magnetic attachment posture. A door magnetizing apparatus characterized by being in surface contact with a side surface of the second component piece (62b).   3. The door magnetizing apparatus according to claim 1, wherein the magnetic plate (5) is pivotally supported with a predetermined play with respect to the bottom surface.   The door magnetic adhesion apparatus according to claim 1, 2, or 3, wherein the predetermined position is a closed position of the door (2).

Images