JPH0312195B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention can be used for openings in houses such as doorways and windows, or for furniture, storage cabinets, etc., and uses the magnetic force of a magnet to keep doors closed. Regarding equipment.

[Background Art] Conventionally, so-called magnetic locks have been used, in which a magnet is attached to the opening frame, a piece of iron is attached to the door, and the door is closed by the attraction force between the magnet and the piece of iron. There was something called "Yatsuchi", but when a magnet and a piece of iron come close to each other when closing a door, the adsorption force increases rapidly, causing the door to close with force.
Not only was it noisy, but there was also the risk of damaging the door and opening frame. On the other hand, if you try to open the door by pulling (or pushing) it, the magnet and iron pieces are fixed in the suction position, so the door will not close firmly and you will have to pull the door too hard. In the past, the door was not easy to use, as the extra force caused the door to hit the surrounding area.

[Object of the Invention] The present invention has been made in view of the drawbacks of the conventional example described above, and its purpose is to close the door by utilizing the magnetic repulsion between the fixed and moving magnets. It absorbs the impact of the door and allows it to close softly, and when the door is closed, the movable magnet moves and locks the door using magnetic attraction.In addition, when the door is opened, the door handle can be operated easily. Therefore, by returning the moving magnet to its original position, the door can be opened naturally due to magnetic repulsion, and in addition, by smoothing the movement of the moving magnet, the movement of the moving magnet can be improved. The aim is to make sure that the process is smooth and reliable.

[Disclosure of the Invention] In the present invention, a door 1 is provided in an opening frame 3 so as to be freely openable and closable, and a fixed magnet body 3 is attached to one end edge of the door stop surface 33 of the opening frame 3 and the door 1, which face each other when closed.
8 and a moving magnet 10 on the other edge.
A slippery sheet 12 is attached to the other end edge of the movable magnet 10 so as to face the back surface of the movable magnet 10, and the movable magnet 10 is placed in a repulsive position different from the repulsive position where the same poles face the fixed magnet 38. The movable magnet body 10 is urged to return from the attraction position to the repulsion position, and the movable magnet body 10 is moved from the attraction position to the repulsion position. A door handle 22 is provided for moving the movable magnet body 10 from the repulsion position by the attraction force between the movable and fixed magnet bodies 10 and 38 that exceeds the return urging force when the movable magnet body 10 is close to the fixed magnet body 38. It was designed to move to a different position, thereby achieving the above objective.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a door such as an entrance door or an interior door, which is rotatably hinged to the passageway opening by a hinge 2, so that it stops against the opening frame 3 on the inner periphery of the passageway opening when closed. It's getting old. Door 1 is placed around the four sides of the closing side of door 1 (hereinafter referred to as the back side).
A closure holding device 4 is provided for sealing the opening frame 3, and is adapted to be magnetically attracted to a magnet provided in the opening frame 3.

That is, a relatively shallow notch 5 is formed at the upper edge, lower edge, and side edge on the hinge side of the door 1 over the entire length thereof from the back surface to the peripheral edge.
An adsorbed body 6 having an L-shaped cross section as shown in FIG. 8 is attached inside. The object to be attracted 6 consists of an adherend piece 6a and a mounting piece 6b, and is made of ferromagnetic metal such as stainless steel or iron that is attached to a magnet.
As shown in FIGS. 6 to 6, the attachment piece 6a is positioned on the back side of the door 1, and the mounting piece 6b is positioned on the circumferential side and fixed to the door 1 with screws 7.

Furthermore, a relatively large notch groove 8 is provided on the free side edge of the back surface of the door 1 over the entire length of the top and bottom, and the surface of the notch groove 8 has a substantially inverted U cross section as shown in FIG.
It is covered with a letter-shaped aluminum cover 9, and a space is formed within the cover 9 that spans the entire length of the top and bottom, and within this space, as shown in FIG. It is housed movably, and a slippery sheet 12 with a small coefficient of friction, such as vinyl chloride, is pasted in the notch groove 8 on the back of the moving magnet 10, so that the moving magnet 10 can move smoothly without getting stuck. It is designed to move up and down. The cover 9 may have an L-shaped cross section as shown in FIG. 9, and the upper and lower openings of the space are closed by groove lids 11. The assembly of the moving magnet 10 is performed in the steps shown in FIGS. 13 to 17. First, the inner surface of the notch groove 8 is finished with sandpaper to reduce frictional resistance (Fig. 13), and a slippery sheet 12 made of synthetic resin with low resistance is pasted over the entire length on the back surface of the notch groove 8. (Figure 14). Next, the central piece 13a and the upper and lower pieces 13b of the aluminum rail 13
are connected horizontally via connecting fittings 14a and 14b, and the rib 15 and rib mounting fitting 16 are attached with screws 17, so that the pair of ribs 15 protrudes toward the back side (FIG. 15). Note that the screw 17 is coated with paint to prevent it from loosening. After that, a moving magnet 10 such as a sintered magnet in which N poles and S poles are arranged alternately at a constant pitch is set on the rail 13 (first
6), bend the ends of the upper and lower pieces 13b, and insert the spacer 19 with a margin between the end of the moving magnet 10 and the bent piece 18 of the rail 13 (Fig. 6).
Figure 7). The moving magnet body 10 assembled in this way is only mounted on the rail 13,
Since there is a gap between the spacer 19 and the bent piece 18, it is possible to move slightly along the rail 13. Thus, the movable magnet body 10 and the rail 13 are housed in the cutout groove 8 so as to be able to freely slide up and down.

There is a latch box 2 on the free end of door 1.
0 is embedded, and a cantilevered door handle 22 is fixed to the outer surface of the door 1 at both ends of the operating shaft 21 of the latchbox 20.
The locking key 23 is designed to protrude and be locked when the door handle 22 is horizontal, and to be retracted and unlocked when the door handle 22 is lowered. Moreover, the operating shaft 21 has a latch box 2.
The operation plate 24 is inserted outside 0,
An arm 25 protruding from the operation plate 24 protrudes into the notched groove 8 and is fitted between a pair of ribs 15, so that the rotation of the door handle 22 and the vertical movement of the movable magnet 10 are linked.

The opening frame 3 of the passageway opening consists of an upper stile 30, a vertical stile 31, and a lower stile 32, and the door stop surface 33 of the upper stile 30, the lower stile 32, and the vertical stile 31 on the hinge side is covered with rubber over the entire length of each. An elastic magnetic adsorbent 36 such as a magnet (not shown) or a permanent magnet 34 wrapped in a rubber coating 35 is attached. When the door 1 is closed, the object to be attracted 6 is attracted to the magnetic attraction member 36, and the parts other than the free side are sealed thereby.
Furthermore, since the magnetic adsorbent 36 has elasticity, it absorbs the impact when the door 1 is closed.
In addition, since the adhered body 6 has an L-shaped cross section, the adhered piece 6a is not easily bent and deformed, and the adhesion with the magnetically attracted body 36 is improved, and furthermore, it is easy to drive the screw 7 into the mounting piece 6b. This prevents the magnetic adsorbent 36 from being deformed and undulating when it hits the screw 7, and this also improves the adhesion.

Further, as shown in FIG. 6, a protective overhanging piece 37 is horizontally projected from the upper surface of the lower stile 32 toward the upper side of the magnetic attraction body 36. The tip of the protective overhang piece 37 is rounded so as not to cause pain to the sole of the foot.

A bar-shaped fixed magnet body 38 is fixedly installed on the doorstop surface 33 of the vertical stile 31 on the free side over the entire vertical length, and the fixed magnet body 38 has an N pole and an N pole as shown in FIGS. 12a and 12b. The S poles are alternately aligned vertically with the moving magnets 10 at the same pitch. For example, a plurality of magnets in which north poles and south poles are arranged alternately are wrapped in a heat-shrinkable tube to form a rod shape.

Next, the operation of the moving magnet 10 and the fixed magnet 38 will be explained. In the free state, the movable magnet 10 is biased by the weight of the door handle 22 so that the fixed magnet 38 and the movable magnet 10 face each other with the same polarity as shown in FIG. 12a. However,
Since the moving magnet 10 and the fixed magnet 38 are biased by the weight of the door handle 22 and are in a repulsive position as shown in FIG. After the shock is absorbed, and just before or after the door 1 closes, the movable magnet 5 moves due to the cooperation of the force pushing the door 1, the magnetic attraction force between different poles, and the magnetic repulsion force between the same poles. The door handle 22 is moved to the suction position as shown in Figure 12b.
The magnetic attraction force overcomes the urging force caused by door 1.
is locked and kept closed. In this case, since the movable magnet 10 can move slightly on the rail 13, the position of the movable magnet 10 does not have to be adjusted. It can be pulled and self-adjusted. In addition, when opening door 1, door handle 2
When the door 1 is moved downward to retract the locking key 23 and the movable magnet 10 is returned to the repelling position as shown in FIG. 12a, the door 1 is unlocked by the magnetic repulsive force.

[Effects of the Invention] Since the present invention is configured as described above, the moving magnet is biased to the repulsive position, and when the door is closed, the magnetic repulsion between the moving magnet and the fixed magnet is used. It absorbs the shock between the door stop and the door stop when the door is closed, allowing the door to close quietly, and when the door is completely closed, the magnetic repulsion between the door closing force and the same polarity is generated. The movable magnet body is moved to the attraction position by the cooperative action of the force and the magnetic attraction force between the different poles, and the door is held tightly by the magnetic attraction force between the movable magnet body and the fixed magnet body. It has the effect of being kept closed. or,
When opening the door, operate the door handle to return the movable magnet to the repulsive position, and the magnetic repulsion between the movable and fixed magnets allows the door to open smoothly without applying force. , the magnetic repulsion force decreases rapidly when the two ends are slightly apart, which has the advantage of allowing the door to open quietly.
In addition, a slippery sheet is attached to the door or door stop surface opposite the back of the movable magnet, so the movable magnet moves smoothly without getting caught, making it easy to open and close the door. It has the advantage of being able to be carried out smoothly and reliably.

[Brief explanation of the drawing]

Fig. 1 is a rear view showing a door according to an embodiment of the present invention, Fig. 2 is a partially cutaway enlarged view of the same, Fig. 3 is a front view showing the opening frame of the same, and Fig. 4 is a closed view of the door. Figure 5 is a cross-sectional view of the upper stile part of the same as above, Figure 6 is a cross-sectional view of the lower stile part of the same as above,
Figure 8 is a sectional view of the cover, Figure 8 is a sectional view of the object to be attracted, Figure 9 is a perspective view of a cover with a different shape installed in the notch, and Figure 10 is an exploded perspective view showing the moving magnet and latch box. 11 is a front view showing the state of engagement between the operation plate and the rail, FIGS. 12a and 12b are explanatory views showing the action between the moving magnet and the fixed magnet, and FIGS. 13 and 14 are The figure is a perspective view showing the notch groove machining process, and FIGS. 15 to 17 are perspective views showing the procedure for assembling the moving magnet body to the rail. DESCRIPTION OF SYMBOLS 1...door, 3...opening frame, 10...movable magnet, 12...slip sheet, 22...door handle, 3
3... door stop surface, 38... fixed magnet body.

Claims (1)

[Claims] 1. A door is provided on an opening frame so that it can be opened and closed, and a fixed magnet is provided on one edge of the door and the door stop surface of the opening frame that face each other when closed, and a movable magnet is provided on the other edge. A slippery sheet is attached to the other edge of the movable magnet so as to face the back surface of the moving magnet,
The movable magnet moves between a repulsion position where the same pole faces the fixed magnet and an attraction position where the different pole faces, and the movable magnet is moved from the attraction position to the repulsion position. In addition to energizing the
A door handle is provided for moving the movable magnet from an attraction position to a repulsion position, and when the movable magnet is in close proximity to the fixed magnet, the movable magnet is moved by the attractive force between the movable and fixed magnets that exceeds the return biasing force. A door closing/holding device, characterized in that the door is moved from a repulsion position to a suction position.