JPH05340145A - Lock mechanism of hinged door - Google Patents

Abstract

PURPOSE:To prevent the formation of the lug of a handle, and to ensure safety by installing an engaging section with a movable member, which is mounted to either of a hinged door or a wall surface and a rocking angle of which can be changed by magnetic force from the outside, and a section to be engaged. CONSTITUTION:A magnet 131 for opening and closing composed of a permanent magnet is used for opening a hinged door 103 from a locked state, and the magnet is bonded with the surface side corresponding to the movable member 113 of the hinged door 103 by magnetic force. The N-pole section 119 of the movable member 113 is attracted to the S-pole section 137 of the magnet 131 for opening and closing, the movable member 113 is rocked while using a shaft 115 as an axis when the magnet 131 for opening and closing is rotated slowly until the display of opening is moved to an upper section, and locking is released. The display of closing of the magnet 131 for opening and closing is moved to a lower section and the magnet is bonded at the same position as the hinged door 103 is opened for closing the hinged door 103. When the magnet 131 for opening and closing is turned gradually until the display of closing is moved to an upper section, the N-pole section 119 of the movable member 113 is attracted to the S-pole section 137 of the magnet 131 for opening and closing, and a lock mechanism is returned to the position of locking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for hinged doors such as cabinets, refrigerators and microwave ovens.

[0002]

2. Description of the Related Art Conventionally, as a lock mechanism for restricting the opening and closing of hinged doors such as cabinets, refrigerators and microwave ovens, for example,
As shown in FIG. 14, the key-shaped engaging portion 1403 protruding from the hinged door 1401 is provided with the hole portion 14 formed in the wall surface 1405.
There was one that engages with the engaged portion 1409 of 07 and locks. The engaging portion 1403 is vertically movable and is constantly pressed downward by the force of a spring (not shown). When the hinged door 1401 is closed and strongly pressed, the tip of the engaging portion 1403 hits the engaged portion 1409, and the engaging portion 1403 is pushed upward by the engaged portion 1409 and slides on the engaged portion 1409. And the engaging part 1
The key-shaped portion 1411 at the tip of 403 is locked by being stored behind the engaged portion 1409. When the hinged door 1401 is opened, the handle 1413 attached to the outside of the door is held and pulled strongly, and the engaging portion 1
The lock was released by sliding 403 on the engaged portion 1409 and pulling it out of the hole portion 1407.

[0003]

However, in the above-described conventional lock mechanism, the handle 1413 has the hinged door 1.
There was a problem that it protruded from 401 and was an obstacle. In addition, just by pulling on the handle 1413, the hinged door 1
There is a problem that the child can open 401, and an infant or the like opens the hinged door 1401 to play a trick on the contents such as the refrigerator.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, and to provide a hinged door locking mechanism which has no protrusion on the handle, does not interfere with the operation, and cannot be easily opened by an infant or the like.

[0005]

A lock mechanism for a hinged door according to the present invention is used in a hinged door attached to a wall opening portion to prevent the hinged door from opening.
An engaging portion having a movable member that is provided on either the hinged door or the wall surface and whose swing angle can be changed by a magnetic force from the outside, and one of the wall surface or the hinged door that does not have the engaging portion. And an engaged portion which is provided in a portion facing the engaging portion and which restricts the opening of the hinged door by engaging with the movable member.

[0006]

With the lock mechanism for a hinged door of the present invention having the above-described structure, in the hinged door attached to the wall opening portion,
An engaging portion having a movable member whose swing angle can be changed by a magnetic force from the outside on one of the hinged door and the wall surface, and the movable member on the other portion facing the engaging portion. And an engaged portion to be fitted. When the engaging portion is magnetically applied from the outside, the engaging member moves the movable member depending on the magnetic force direction to engage or disengage the engaged member. Therefore, by applying a magnetic force that engages or disengages from the outside of the engaging portion,
By engaging or disengaging the engaging portion and the engaged portion, the hinged door can be freely locked or unlocked. Therefore, the detachable magnet can be applied to the hinged door only when locking or unlocking, and the hinged door can be freely locked and unlocked.

[0007]

Preferred embodiments of the present invention will be described below in order to further clarify the constitution and operation of the present invention described above. <Embodiment 1> FIG. 1 is a perspective view of a box using a lock mechanism according to an embodiment of the present invention. A swing door 103 is provided on the front surface of the box body 101, and the box body 101 of the swing door 103
An engagement portion 105 is provided inside. Hinged door 10
3 is made of a ferromagnetic material such as iron. Further, an engaged portion 109 is provided inside the side wall surface 107 of the box body 101 that faces the engaging portion 105 when the hinged door 103 is closed. The hinged door 103 is attached to the box body 101 by a hinge 111 so as to be openable and closable.

FIG. 2 shows an explanatory view of the engaging portion 105 as seen from the inside of the box 101 of the hinged door 103. The engaging portion 105 includes a movable member 113, a shaft 115, and a movable member supporting protrusion 117. The movable member 113 is supported by the shaft 115 and the movable member supporting protrusion 117, and can swing in a plane substantially parallel to the hinged door 103 about the shaft 115. However, the movable member 113
The movable member supporting protrusion 117 limits the swing angle range to 180 ° above the shaft 115. The movable member 113 is composed of a permanent magnet, and has N pole portion 119 and S pole portion 12 at both ends thereof.
Has 1. When the movable member 113 is in the position shown by the solid line in FIG. 2, the hinged door 103 is in the locked state, and when it is in the position shown by the dotted line in FIG.
Is unlocked. FIG. 3 shows an explanatory view of the state in which the hinged door 103 of the box body 101 of the present embodiment is closed as seen from above. When the movable member 113 is in the position shown by the solid line in FIG. 3, the hinged door 103 is in the locked state, and when it is in the position shown by the dotted line in FIG.
Is unlocked. To open the hinged door 103 from the locked state, an opening / closing magnet 131 as shown in FIG. 4 is used. The opening / closing magnet 131 is composed of a permanent magnet and is provided with a handle 133.
An N pole portion 135 and an S pole portion 137 are provided near both ends of 33, respectively. In addition, as shown in FIG. 4, when the handle 133 is viewed from the side of the handle 133, the N pole portion 135 is positioned on the right side, and "open" is displayed on the upper side and "closed" is displayed on the opposite side. There is. This opening / closing magnet 131
Is magnetically adhered to the front side of the hinged door 103 corresponding to the movable member 113 in FIG. At this time, with the display of “open” of the opening / closing magnet 131 facing down, as shown in FIG. 3, the S pole portion 137 of the opening / closing magnet 131 corresponds to the N pole portion 119 of the movable member 113 in the locked state. Glue it so that it is in the desired position. Then, the north pole portion 11 of the movable member 113
9 is attracted to the S pole portion 137 of the opening / closing magnet 131.
Therefore, the opening / closing magnet 131 is slowly rotated as indicated by a solid arrow in FIG. Accordingly, the N pole portion 119 of the movable member 113 slowly rotates while being attracted to the S pole portion 137 of the opening / closing magnet 131, and the movable member 113 has the shaft 115 as an axis, and a solid arrow is shown in FIG. Rocks, and the lock is released. At this time, the movable member 113 is at the position indicated by the dotted line in FIG. After that, the handle 1 of the opening / closing magnet 131
By pulling 33, the hinged door 103 can be opened. Moreover, in order to close the hinged door 103, the hinged door 10
3 is closed, and the display of “closed” of the opening / closing magnet 131 is set to the lower side, and the door is attached at the same position as when the hinged door 103 is opened. Then, the S pole portion 137 of the opening / closing magnet 131 is located on the front side of the hinged door 103 corresponding to the N pole portion 119 of the movable member 113 in the unlocked state, and the N pole portion 119 of the movable member 113 is opened / closed. Is attracted to the S pole portion 137 of the. Therefore, the opening / closing magnet 131 is slowly turned as indicated by a dotted arrow in FIG. Accordingly, the N pole portion 11 of the movable member 113
9 slowly rotates while being attracted to the S pole portion 137 of the opening / closing magnet 131, and the movable member 113 moves the shaft 115.
2 is rocked as shown by a dotted arrow in FIG. 2, and returned to the lock position and locked. At this time, the movable member 113 is in the position indicated by the solid line in FIG. After that, by removing the opening / closing magnet 131, the hinged door 103 can be made unopenable.

According to this embodiment, since the surface of the hinged door 103 has no protrusion on the handle, it does not get in the way. Also,
Since the hinged door 103 cannot be opened without the opening / closing magnet 131, there is no fear that an infant or the like will open the hinged door 103 without permission. In addition, the opening and closing magnet 131,
With the indications of "open" and "closed" as shown in Fig. 4,
Make sure that the lock of the hinged door 103 is unlocked by adhering it to the predetermined position of the hinged door 103 with "open" facing up.
If you set it to "Lock" when it is closed, it will be easy to understand how to open and close it. Further, in the present embodiment, if a mark for adhering the opening / closing magnet 131 is provided on the surface of the hinged door 103 corresponding to the engaging portion 105, the place where the opening / closing magnet 131 is attached is easy to understand and convenient.

Further, the opening / closing magnet 131 of the first embodiment may be constituted by an electromagnet using a dry battery as a power source instead of the permanent magnet. If the opening / closing magnet 131 is an electromagnet, the N pole and S pole of the magnet can be exchanged with a single switch. Therefore, it is not necessary to change the direction of the opening / closing magnet 131 when opening and closing the hinged door 103, and the opening / closing operation is easy. <Embodiment 2> FIG. 5 is a perspective view of a box body using a lock mechanism according to an embodiment of the present invention. A swing door 503 is provided on the front surface of the box body 501, and the box body 501 of the swing door 503 is provided.
An engaged portion 505 is provided inside. Hinged door 5
03 is made of a ferromagnetic material such as iron. Further, when the hinged door 503 is closed, it faces the engaged portion 505,
An engagement portion 509 is provided inside the side wall surface 507 of the box body 501. The hinged door 503 is attached to the box body 501 by a hinge 511 so as to be openable and closable.

FIG. 6 is a perspective view of the engaged portion 505 as seen from the inside of the box body 501 of the hinged door 503. Engagement portion 50 in FIG.
9 is an explanatory view of the container 9 seen from the inside of the box 501. FIG. The engagement portion 509 includes a movable member 513, a shaft 515, and a support plate 517. The movable member 513 is supported by a shaft 515, and can rotate about a shaft 515 in a plane substantially parallel to the hinged door 503. The shaft 515 projects from the support plate 517. The movable member 513 is composed of a permanent magnet, and has an N pole portion 519 and an S pole portion 521 at both ends thereof. Further, the movable member 513 is partially provided with a cutout 523.

FIG. 8 shows the unlocked state of the hinged door 503. The engaged portion 5 is formed in the cutout portion 523 of the movable member 513.
05 is located and can be opened and closed. In addition, in FIG.
The locked state of the hinged door 503 is shown. Movable member 513
Rotates, the notch 523 moves from a position corresponding to the engaged portion 505, the movable member 513 and the engaged portion 505 engage with each other, and the hinged door 503 is locked.

To open and close the locked hinged door 503, the same opening / closing magnet as shown in the first embodiment is used, and like the first embodiment, the S pole portion 137 of the opening / closing magnet and the N pole of the movable member 513 are used. The movable member 51 is attracted by the attraction force with the portion 519.
Rotate 3 to perform. According to the present embodiment, the same effect as that of the first embodiment can be obtained, and since the engaging portion 509, which tends to be relatively large in scale, is provided on the side wall surface 507 of the box body 501 instead of the hinged door 503, the hinged door 503. It has the effect of making it thin and light. <Embodiment 3> FIG. 10 is a perspective view of a box using a lock mechanism according to an embodiment of the present invention. A swing door 1003 is provided on the front surface of the box body 1001, and an engaging portion 1005 is provided inside the box body 1001 of the swing door 1003. The hinged door 1003 is made of a ferromagnetic material such as iron. In addition, the side wall surface 1007 of the box body 1001 has a hole 1
009 is opened, and the engaged portion 10 is inserted in the hole 1009.
11 is provided. Further, on the surface of the hinged door 1003, a knob position instruction mark 1013 for indicating a position to attach a later-described opening / closing magnet is provided.

FIG. 11 shows a side view of the locked state of the hinged door 1003. The engaging portion 1005 is composed of a movable member 1015, a shaft 1017, an engaging spring 1019, and an engaging magnet 1021. Movable member 10
15 is supported by the shaft 1017, and the shaft 1
It is possible to swing about the axis 017 in a plane substantially perpendicular to the hinged door 1003. When the movable member 1015 is in the locked state, the sliding door 100 is moved by the engagement spring 1019.
3 The inner end is pushed up and the hole 10
The key-shaped portion 1023 inside the 09 is engaged and locked with the engaged portion 1011. The engagement surfaces of the key portion 1023 and the engaged portion 1011 are both configured to be substantially vertical, and the lock cannot be released only by pulling the hinged door 1003 forward. An engaging magnet 1021 is attached to the movable member 1015 on the opposite side of the engaging spring 1019. The engaging magnet 1021 is made of a permanent magnet and has an N pole portion 1025 and an S pole portion 1027.

To open the hinged door 103, an opening / closing magnet 1031 as shown in FIG. 12 is used. Opening and closing magnet 1
031 is composed of a permanent magnet, and is provided with a handle 1033, and the side surface on which the handle 1033 is present is the N pole portion 1
035, and the side surface on the opposite side is an S pole portion 1037. The opening / closing magnet 1031 is shown in FIG.
03 is a diagram illustrating a state in which the hinged door 1003 is adhered to the knob position instruction mark 1013 and the hinged door 1003 is unlocked. Figure 1
3, the engaging magnet 102 of the movable member 1015
The N pole portion 1025 of No. 1 is attracted to the S pole portion 1037 of the opening / closing magnet 1031, the movable member 1015 swings about the shaft 1017 as an axis as shown by an arrow in FIG. 13, and the lock is released. The engagement spring 1019 is pushed by the movable member 1015 and contracts. After that, the opening / closing magnet 103
Swing door 10 by pulling handle 1033 of No. 1
03 can be opened. To close the hinged door 1003, close the hinged door 1003 and open / close the magnet 1031.
Is removed from the hinged door 1003. Then, the engaging magnet 1
The magnetic force that has attracted the N pole portion 1025 of 021 disappears, and the movable member 1015 swings by the force of the engagement spring 1019 to return to the locked state. Alternatively, the opening / closing magnet 1031 may be removed and then the hinged door 1003 may be pushed to close it. In this case, the movable member 1015 returns to the locked position when the opening / closing magnet 1031 is removed, and then the movable member 101 is pushed by the force of pushing the hinged door 1003.
5 is pressed against the engaged portion 1011 and then slides on the engaged portion 1011 to be in a locked state.

According to this embodiment, the same effect as that of the first embodiment can be obtained, and in addition, the opening / closing magnet 1031 is not required when the hinged door 1003 is closed. As described above, according to each of the above-described embodiments, since the surface of the hinged door does not have the protrusion of the handle, it is not an obstacle, and since the hinged door cannot be opened without the opening / closing magnet, an infant or the like can freely open the hinged door. It is possible to provide a lock mechanism for a hinged door that does not cause the door to be misaligned when opened.

Further, in the above embodiment, the opening / closing magnet is attracted only by the magnetic force to open the hinged door. Further, a locking member is provided at the mounting position of the magnet for opening / closing to engage the magnet for opening / closing with the hinged door. It can be stopped and a heavy hinged door can be opened.
Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention.

[0018]

As described in detail above, according to the lock mechanism for a hinged door of the present invention, a lock mechanism for a hinged door, which has no protrusion on the handle, does not obstruct the handle, and cannot be easily opened by an infant or the like. Can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of a box body using a hinged door locking mechanism according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an engaging portion.

FIG. 3 is an explanatory view of a box body using a lock mechanism of a hinged door according to an embodiment of the present invention.

FIG. 4 is a perspective view of an opening / closing magnet.

FIG. 5 is a perspective view of a box body using a hinged door locking mechanism according to an embodiment of the present invention.

FIG. 6 is an explanatory diagram of an engaged portion.

FIG. 7 is an explanatory diagram of an engaging portion.

FIG. 8 is an explanatory diagram of an engaging portion.

FIG. 9 is an explanatory diagram of an engaging portion.

FIG. 10 is a perspective view of a box body using a hinged door locking mechanism according to an embodiment of the present invention.

FIG. 11 is an explanatory diagram of a locked state of a hinged door.

FIG. 12 is a perspective view of an opening / closing magnet.

FIG. 13 is an explanatory diagram of an unlocked state of the hinged door.

FIG. 14 is a perspective view of a box body using a conventional hinge mechanism of a hinged door.

[Explanation of symbols]

 101, 501, 1001 ... Box body 103, 503, 1003 ... Swing door 105, 509, 1005 ... Engagement portion 107, 507, 1007 ... Side wall surface 109, 505, 1011 ... Engagement Joints 111, 511 ... Hinges 113, 513, 1015 ... Movable members 115, 515, 1017 ... Shafts 117 ... Protrusions 119, 519, 1025 ... N-pole portion 121, 521, 1027 ... S-pole portion 131, 1031 ... Magnet for opening / closing 133, 1033 .... Handle 135, 1035 ........ N pole portion 137, 1037 ..... S pole portion 517 ..... Support plate 523 ........・ Notch 1009 ...・ ・ ・ ・ ・ ・ ・ Hole 1013 ・ ・ ・ ・ ・ ・ Knob position indication mark 1019 ・ ・ ・ ・ ・ ・ ・ Spring for engagement 1021 ・ ・ ・ ・..Engagement magnets 1023 .................. Key-shaped portions

Claims (1)

[Claims] 1. A lock mechanism for use in a hinged door attached to an opening portion of a wall surface to prevent the hinged door from being opened. The lock mechanism is provided on either the hinged door or the wall surface, and its swing angle is controlled by a magnetic force from the outside. An engaging portion having a changeable movable member, and one of the wall surface or the hinged door which is not provided with the engaging portion and which is provided at a portion facing the engaging portion and engages with the movable member. The locking mechanism for the hinged door, comprising: an engaged portion for restricting the opening of the hinged door.