JPH0235976Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an unlocking device for a magnetic locking device.

Fittings such as accordion doors, roll-up blinds, roll-up screens, curtains, sliding doors, hinged doors, etc. may be locked with magnetic locking devices. A magnetic lock device consists of a lock body made of a magnet that is attached to a fitting, and a magnetic receiving fitting made of a magnetic material that is attached to a member that receives the fitting.

The object of this invention is to provide a device that can easily release the locked state of the magnetic lock device as described above with a single touch.

In this specification, front and rear refer to FIG. 1, and the front refers to the right side of the figure, and the rear refers to the left side of the figure. In addition, left and right refer to the direction toward the rear.

The lock release device according to this invention is attached to a movable frame holder equipped with opposing walls at a predetermined interval in the left-right direction, and includes a guide and a guide provided between the opposing walls and provided with a through hole in the front-rear direction. , plate-shaped elastic parts facing each other at a predetermined interval in the left-right direction;
A lock that is equipped with a connecting part that connects the plate-shaped elastic parts at their intermediate lengths, and a vertical groove formed on the front surface of the connecting part, and in which the connecting part is slidably guided in the left and right directions by a guide. It consists of a release operation member and a lock release piece that is slidably inserted into the through hole of the guide in the front and back direction and is usually partially recessed in the groove, and the connecting part of the lock release operation member is opposite to the movable frame holder. A plate-shaped elastic part is positioned outside the opposing wall by penetrating the wall, both upper and lower ends of the plate-shaped elastic part are curved toward the opposing wall, and both sides of the groove of the connecting part are provided with tapered parts. When the connecting portion slides left and right, the release piece escapes from the groove along the tapered portion and the rear edge portion protrudes rearward.

According to the lock release device of this invention, when the plate-shaped elastic part located on the outside of the movable frame holder is pushed in either the left or right direction, the connecting part is guided by the guide and slides, usually entering the groove. A part of the lock release piece that is in the groove escapes from the groove along the tapered part of the groove, and the rear edge protrudes rearward. Therefore, if the lock release device is installed at the part of the movable frame holder where the bracket to which the lock body is attracted is attached, the release piece will protrude rearward, pushing the lock body backward and releasing the bracket. can be separated from moreover,
When the plate-shaped elastic part is pushed in either the left or right direction, the curved part of the plate-shaped elastic part comes into contact with the outer surface of the opposing wall of the movable frame holder and is elastically deformed, so after the lock is released, the plate-shaped elastic part The connecting portion also returns to its original position and a portion of the release piece enters the groove again. As described above, according to the lock release device of this invention, the locked state of the magnetic lock device can be easily released.

This invention will be described below with reference to embodiments shown in the drawings. This embodiment shows a case where the lock release device is applied to a magnetic lock device for a roll-up screen door.

In FIG. 1, the winding screen door 1 is placed inside a swinging door (not shown) at the opening.
The magnetic locking device is attached to the movable vertical frame 2 of the winding screen door 1.
It consists of a lock main body 3 made of a magnet attached to the opening, and a receiving metal fitting 5 made of a magnetic material attached to a movable frame holder 4 erected along the pillar A at the front edge of the opening. The lock body 3 has two legs 3a. The movable frame holder 4 has a substantially H-shaped cross section, and includes a pair of opposing walls 4a that face each other at a predetermined distance in the left-right direction;
and a connecting wall 4b connecting the two at a position near the front edge. The receiving metal fitting 5 is attached to the rear surface of the connecting wall 4b, and the tip of the leg portion 3a is attracted to the receiving metal fitting 5, so that it is in a locked state. When the locking state by the locking device is released, the winding screen door 1 is automatically wound up by a winding device (not shown) housed in the winding case 6.

The lock release device is attached to the movable frame holder 4, and includes a hard synthetic resin guide 9 which is arranged between the opposing walls 4a of the movable frame holder 4 and has a through hole 8 in the front and back direction. , a hard synthetic resin lock release operation member 10 slidably guided in the left and right direction by the guide 9, and a hard synthetic resin slidably fitted from the rear into a longitudinal through hole 8 bored in the guide 9. It consists of a manufactured lock release piece 11.
The lock release operation member 10 includes a pair of plate-shaped elastic portions 10a facing each other at a predetermined interval in the left-right direction;
It consists of a connecting portion 10b that connects the plate-like elastic portions 10a to each other at the center of their length. The upper and lower ends of the plate-like elastic part 10a are each curved to form a curved part, and the plate-like elastic part 10a as a whole is arched. Further, a push portion 10c is provided in the upper and lower central portions of the outer surface of the plate-shaped elastic portion 10a in an outwardly projecting manner. A groove 12 extending in the vertical direction is formed on the rear surface of the connecting portion 10b, and both side surfaces of the groove 12 are tapered surfaces 12a. The guide 9 has a rectangular parallelepiped shape, and a groove 9a is provided in the upper and lower center portions of the front surface of the guide 9, into which a connecting portion 10b of the unlocking operation member 10 is fitted so as to be slidable in the left-right direction. Outwardly protruding edges 9b are provided at the end peripheries of the grooves 9a on both left and right side surfaces of the guide 9. The through hole 8 formed in the guide 9 is long in the vertical direction, and narrow portions 8a are provided at both upper and lower ends thereof. The connecting portion 10b is fitted into the groove 9a so as to be slidable in the left-right direction so that the through hole 8 is located at a position corresponding to the groove 12. At both upper and lower ends of the lock release piece 11, upwardly and downwardly protruding portions 11a are provided which enter the narrow width portion 8a.
is provided. A notch 13 is provided at the upper and lower center of the front edge of the release piece 11. Notch 1
The size of the release piece 1 in the vertical direction is almost equal to the width of the connecting part 10b, and the size in the front-back direction is slightly larger than the distance between the bottom of the groove 12 and the front surface of the connecting part 10b.
A tapered portion 14 is provided at the rear edge of the notch 13 in the cutout 1 . The release piece 11 is fitted into the through hole 8 from the rear, and the taper portion 14 is in contact with the tapered surface 12a of the groove 12, with the notch 13 straddling the connecting portion 10b.

The lock release device is attached to the movable frame holder 4 as follows.
installed on. That is, by cutting out the opposing wall 4a of the movable frame holder 4, the peripheral edge is formed into the groove 9 of the guide 9.
A cutout 16 is formed that can be brought into close contact with the circumferential surface of the outwardly protruding edge 9b of the end periphery in a, and a cutout 17 is formed by cutting the connecting wall 4b slightly longer than the length of the guide 9. . Therefore, the plate-shaped elastic part 10a is positioned on the outside of the opposing wall 4a, and the wall 4a is sandwiched between the plate-shaped elastic part 10a and the guide 9, and the outwardly projecting edge 9b is tightly fitted into the cutout part 16. As required, the unlocking device
It is attached to the movable frame holder 4 from the front. Movable frame holder 4
are attached to the pillars A on both sides of the opening after the lock release device is attached. The receiving metal fitting 5 to which the leg portion 3a of the lock body 3 is attracted straddles the cutout portion 17 so as to cover the portion of the guide 9 that protrudes rearward from the cutout portion 17 of the connection wall 4b, and attaches to the connection wall 4b at both upper and lower ends. It is screwed on. The receiving fitting 5 has an elongated hole 5a that is long in the vertical direction.
The length of the elongated hole 5a is the length of the protrusion 1 in the release piece 11.
It is equal to the length of the part excluding 1a. The rear edge of the release piece 11 projects rearward through the elongated hole 5a.
Its protruding length is shorter than the leg 3a of the lock body 3, and the leg 3a straddles the protrusion of the release piece 11 and is attracted to the receiving metal fitting 5. When the rear edge of the notch 13 of the release piece 11 escapes from the groove 12 and comes into contact with the front surface of the connecting part 10b, the elongated hole 5a in the release piece 11
The length of the protrusion from the lock body 3 is longer than that of the leg portion 3a of the lock body 3.

In this state, when the left pusher portion 10e is pushed to the right, the connecting portion 10b moves to the right, and the plate-like elastic portion 10a is elastically deformed so as to come into close contact with the outer surface of the opposing wall 4a (see Fig. 7). . When the connecting portion 10b moves to the right, the tapered portion 14 of the release piece 11 moves into the groove 12.
The release piece 11 escapes from the groove 12 to the left along the tapered surface 12a, and the rear edge of the release piece 11 protrudes further rearward from the elongated hole 5a. and,
Since the protruding length at this time is longer than the length of the leg portion 3a of the lock body 3, the leg portion 3a is pushed backward and detached from the receiving fitting 5 (see FIG. 6). At this time, the protruding portion 11a engages with the front surface of the receiving metal fitting 5, thereby preventing the release piece 11 from falling off to the rear. Then, the lock state is released and the winding screen door 1 is released.
is wound up in the winding case 6. In this way, if the locked state is released, the push section 11
When you release your hand and remove the biasing force to the right,
The left elastic plate 10a, which has undergone facultative deformation, attempts to return to its original shape due to elastic force. As a result, the tip of the curved portion of the plate-like elastic portion 10a pushes the outer surface of the opposing wall 4a to the right, and the lock release operation member 10 moves to the left due to the reaction, and FIGS. 3 to 5 show the original state shown in FIGS. Returning to the state, the rear edge of the notch 13 in the release piece 11 also enters the groove 12.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; Fig. 1 is a front view of a winding screen door equipped with a magnetic locking device in a closed and locked state, and Fig. 2 is an exploded perspective view of the unlocking device of the magnetic locking device. , Fig. 3 is an enlarged sectional view along the - line of Fig. 1, Fig. 4 is an enlarged sectional view taken along the - line of Fig. 3, Fig. 5 is an enlarged sectional view taken along the - line of Fig. 4, and Fig. 6 is an enlarged sectional view taken along the - line of Fig. 1. 7 is a diagram corresponding to FIG. 3 showing a state in which the lock is released, and FIG. 7 is a diagram corresponding to FIG. 5 showing a state in which the lock is released. 4...Movable frame holder, 4a...Opposing wall, 8...Through hole, 9...Guide, 10...Lock release operation member, 10a...Plate-like elastic part, 10b...Connection part,
11...Lock release piece, 12...Groove, 12a...
Tapered part.

Claims (1)

[Scope of utility model registration request] It is attached to a movable frame holder 4 equipped with opposing walls 4a spaced apart from each other by a predetermined distance in the left-right direction, and includes a guide 9 disposed between the opposing walls 4a and provided with a through hole 8 in the front-rear direction, A plate-shaped elastic part 10a and a plate-shaped elastic part 1 facing each other at a predetermined interval.
Connecting part 10 that connects 0a to each other at the middle part of the length
Vertical groove 1 formed on the front surface of b and 10b
2, and a lock release operation member 10 whose connecting portion 10b is slidably guided in the left-right direction by the guide 9, and a lock release operation member 10 which is inserted into the through hole 8 of the guide 9 so as to be slidable in the front-rear direction. The lock release piece 11 is partially inserted into the groove 12, and the connecting portion 10b of the lock release operation member 10 penetrates the opposing wall 4a of the movable frame holder 4, and the plate-like elastic portion 10a is located outside the opposing wall 4a. The upper and lower ends of the plate-like elastic part 10a are curved toward the opposing wall 4a, and both sides of the groove 12 of the connecting part 10b are provided with tapered parts 12a, so that the connecting part 10b can slide left and right. When moving, the release piece 11 escapes from the groove 12 along the tapered portion 12a, and the rear edge portion protrudes rearward. Unlocking device for magnetic locking device.