JPH068220Y2 - Electromagnetic lock mechanism - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to an electromagnetic lock mechanism, which simplifies the structure for forming an appropriate locked state by using an electromagnetic plunger, and ensures that the lock and the release are performed. It is intended to provide a mechanism for obtaining.

Industrial applications Locking mechanism.

2. Description of the Related Art Locking for the purpose of crime prevention has been performed for a long time, but this conventional locking is generally operated by a key.

On the other hand, in Japanese Utility Model Publication No. 41-12465, two electromagnetic plunger mechanisms in which the plungers are orthogonal to each other are used to disengage the other plunger from the shoulder portion of one plunger, and the one plunger is provided on the door in a protruding state. It has been proposed to lock and lock the protrusion of the door fitting.

Problems to be Solved by the Invention In the conventional general keys that are locked or unlocked as described above, it is necessary to use each key, which is complicated. Moreover, if there is no key, those operations cannot be performed. Moreover, in terms of crime prevention, the key may be unlocked relatively easily by a criminal who knows a certain technique, which is not always preferable. Further, as long as the key is used, its installation position is specified. For example, if it is set on the top or bottom of the door, it becomes extremely difficult to operate with the key.

The above-mentioned Japanese Utility Model Publication No. 41-12465 uses an electromagnetic mechanism in which a solenoid coil is wrapped in an iron core, and the solenoid coil is energized to attract the plunger.
Since a shaft portion that largely protrudes into the solenoid coil is provided at the center of the iron core, and a plunger is provided in the axial direction with respect to the shaft portion, the structure is complicated and the plunger that is located in the solenoid is provided. Is short and requires a special plunger bearing to hold the plunger that is locked to the door fitting, and the small diameter part at the tip of the plunger is locked to the door fitting. I don't get it. Particularly in this case, as shown in FIG. 2, the small-diameter tip of the plunger and the projection of the door metal fitting are merely line contacts, and their lengths are short. Therefore, the locked state must be unstable. Absent.

"Structure of the Invention" Means for Solving the Problems A lock case in which first and second electromagnetic mechanisms are arranged in such a relationship that their plunger axial directions are orthogonal to each other, and the lock case is provided opposite to one side of the lock case. In the L-shaped locking metal fitting, a flange is formed at an intermediate portion of the plunger inserted into the inner hole of the first electromagnetic mechanism, and a return spring is provided between the flange and the first electromagnetic mechanism. Moreover, the portion protruding from the flange is formed to have a large diameter to form a large-diameter lock portion, and the plunger of the second electromagnetic mechanism is provided with a flange that engages with and disengages from the flange of the first electromagnetic mechanism plunger. An elastic body is provided between the lock case and the thick-walled tubular bearing material, and the thick-walled tubular bearing material is fitted with the large-diameter lock portion of the plunger of the first electromagnetic mechanism. A lock for engaging and disengaging the first electromagnetic mechanism plunger with the stopper The provided electromagnetic lock mechanism, characterized in that the formation of the above-mentioned tapered surface towards said return spring side to the end face periphery which engages the return spring of the flange in the plunger of the first electromagnetic mechanism.

The door of the door is constructed by the lock case in which the first and second electromagnetic mechanisms are arranged in a relationship in which the plunger axial directions thereof are orthogonal to each other, and the L-shaped locking metal fitting opposite to one side of the lock case. The movable case and the fixed member such as the pillar, the kamoi or the sill are provided with the lock case and the locking metal member facing each other, and the plunger is retracted by energizing the first electromagnetic mechanism. The unlocked state is formed by being held by the plunger of the mechanism.

Further, when the second electromagnetic mechanism is energized, the unlocked state lock between the plunger and the first electromagnetic mechanism plunger is released, and the first electromagnetic mechanism plunger is caused to project by the action of the return spring, so that the locking metal fitting The lock state can be formed by fitting the lock hole.

The plunger of the second electromagnetic mechanism is provided with a flange that engages with and disengages from the flange of the first electromagnetic mechanism plunger, and an elastic body is provided between the flange of the second electromagnetic mechanism and the second electromagnetic mechanism so that the above-described operation is performed with an appropriate stroke. Hold it in its locked or unlocked position as well as tighten it.

By forming a large diameter portion of the plunger of the first electromagnetic mechanism projecting from the flange portion to form a large diameter lock portion, and mounting the large diameter lock portion on a thick-walled tubular bearing material fixed to a lock case. The plunger of the first electromagnetic mechanism is held in the proper direction in a sufficient length range of the thick-walled tubular bearing material with respect to the lock case to properly engage and disengage the locking hole of the locking fitting, and The direction of the plunger is accurately maintained in cooperation with the inner hole of the electromagnetic mechanism, and the plunger is smoothly drawn into the first electromagnetic mechanism during energization.

By providing a lock hole for engaging and disengaging the first electromagnetic mechanism plunger in the locking metal fitting, the large diameter portion on the tip side of the first electromagnetic mechanism plunger is joined to the hole edge of the lock hole at the circumference, Together with the retaining action of the thick-walled tubular bearing material, the locked state is accurately and stabilized.

The plunger of the second electromagnetic mechanism is returned by the elastic body by forming a taper surface facing the return spring on the circumferential surface of the end face of the flange of the plunger of the first electromagnetic mechanism, which engages with the return spring. In this state, when the first electromagnetic mechanism plunger is attracted to the electromagnetic mechanism by the energization of the electromagnetic mechanism, the second electromagnetic mechanism plunger is automatically pushed back to smoothly perform the suction operation.

The position where the lock case and the locking metal member are opposed to each other is selected to be an arbitrary position including the upper side and the lower side of the movable member and the fixed member as described above, and with respect to each of the first and second electromagnetic mechanisms. Can be energized using switches and signals. It can also be used for turning on or off or energizing for opening and closing the door.

EXAMPLE A concrete embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the lock case 1 is either a movable member such as a door or a fixed member such as a pillar. For such a lock case 1, a locking metal fitting 2 as shown in FIGS. 3 and 4 is provided on the other of the movable member and the fixed member. However, the lock case 1 has two electromagnetic mechanisms 11 and 12 as shown in FIG.
Are arranged such that the axial directions of the plungers 11a and 12a are orthogonal to each other. The plunger 11a in one of the electromagnetic mechanisms 11 is inserted into the inner hole 11d of the electromagnetic mechanism 11, and the collar 11e is provided in the middle thereof. And a return spring 11c is interposed between the return spring 11c and the electromagnetic mechanism 11, and the return spring 11c is provided on the circumferential side of the end surface of the collar 11b where the return spring 11c is locked.
A tapered surface 11b facing the side is formed. The plunger 11a has a large-diameter portion 11f at its tip, and the large-diameter portion 11f is provided with the thick-walled tubular bearing member 5 provided in the lock case 1.
The return spring 11c is inserted into the case 1 and can be appropriately projected by the action of the return spring 11c. The plunger 12a of the other electromagnetic mechanism 12 also has the inner hole 12 of the electromagnetic mechanism 12.
It is inserted in d like the first electromagnetic mechanism 11, and a flange 12b is formed on the tip end side of the plunger 12a, and an elastic body 12c is interposed between the plunger 12a and the electromagnetic mechanism 12. However, the portion protruding from the collar 12b is adapted to be engaged with and disengaged from the collar portion 11e of the one electromagnetic plunger 11a. The end surface of the flange portion 11e on the electromagnetic mechanism 11 side is an umbrella-shaped tapered surface 11b. Therefore, when the plunger 12a is sucked, the plunger 12a is moved back in a state in which the flange portion 11e is joined to the thick-walled tubular bearing member 5. Thus, the projecting end and the tapered surface 11b are joined together to form a locked state. Further, when the plunger 11a is sucked in this state, the projecting end of the plunger 12a joined by the tapered surface 11b is pushed to retract the plunger 12a, the locked state is released, and the tip of the plunger 12a enters the bearing member 5. Be drawn in.

The locking metal fitting 2 shown in FIGS. 3 and 4 is an L-shaped member in section, and is attached to the pillar or other fixing member as described above by the mounting hole 2a on one side thereof, and is formed on the other side. The lock hole 2b thus formed faces the end of the plunger 11a projecting from the bearing member 5 as described above.

As for the mounting position of the lock case 1 and the locking metal fitting 2 as described above, any direction and position such as upward, downward or sideways between a movable member such as a door and a pillar, a sill, a sill or other fixed member. Is set to. It is clear that the electromagnetic mechanisms 11 and 12 may be energized by either a switch mechanism or a signal mechanism such as a radio wave, and a switch or a signal for turning on or off or automatically opening and closing the door may be used. It can be used together with the electromagnetic mechanisms 11 and 12.

The locking and unlocking will be described. When the electromagnetic solenoid 11 is momentarily energized, the plunger 11a is attracted and its flange 11e is locked to the plunger 12a as shown in FIG. 5, that is, the large diameter of the plunger 11a. Part 11f
Shows the unlocked state shown in FIGS. 5 and 6 which is pulled into the case 1, and the fitted state of the plunger 11a with respect to the lock hole 2b is released. When momentary energization is obtained in the electromagnetic solenoid 12 in such an unlocked state, the plunger 12a is retracted, and the tip of the plunger 12a and the collar portion 1 are pulled.
Since the engagement with 1e is released, the thick-walled tubular bearing member 5 projects from the plunger 11a by the action of the return spring 11c, that is, the tip end side of the plunger 11a is inserted into the lock hole 2b to form a locked state. In this locked state, the projecting tip side of the plunger 11a is held in the case 1 by the thick-walled tubular bearing member 5, and a stable and accurate locking relationship is formed with the plunger 11a inserted and housed in the hole 2b. .

[Advantage of Device] When the present invention as described above is used, a switch or a signal can be used to electrically and automatically lock and unlock, and the complexity of using a key can be completely eliminated. It is possible, and it is a great advantage because it can not be unlocked with a duplicate key or a driver for crime prevention, and the setting location can be freely selected, and it can be set at a height position that is out of reach of criminals. Although it is possible to ensure crime prevention, the structure of the electromagnetic plunger is extremely simple, and the operation of the plunger that forms the locked state by the thick-walled tubular bearing material and the large diameter part on the plunger tip side is appropriate. It is performed in a certain direction, and its locking relationship is strong and stable, and there is no directionality, so it can be used in any direction.
This is a device that has a great effect in practice, such as being able to set the position.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a plan view of a lock case according to the present invention, FIG. 2 is a side view thereof, and FIG.
FIG. 4 is a side view of the locking fitting, FIG. 4 is a plan view thereof, FIG. 5 is a cross-sectional view showing the internal structure of the lock case, and FIG. 6 is a side view of one electromagnetic plunger portion thereof. However, in these drawings, 1 is a lock case, 2 is a locking metal fitting, 2b is a lock hole thereof, 5 is a thick-walled tubular bearing material, 1
Reference numerals 1 and 12 are electromagnetic mechanisms, 11a and 12a are plungers thereof, 11b and 12b are flanges thereof, 11c is a return spring, 12c is an elastic body, and 11f is a large diameter portion of the plunger tip.

Claims (1)

[Scope of utility model registration request] 1. A lock case in which first and second electromagnetic mechanisms are arranged in a relationship in which their plunger axial directions are orthogonal to each other, and an L-shaped locking metal fitting opposite to one side of the lock case. In this case, a flange is formed at an intermediate portion of the plunger inserted into the inner hole of the first electromagnetic mechanism, a return spring is provided between the flange and the first electromagnetic mechanism, and a portion protruding from the flange is formed. A large-diameter lock portion is formed to have a large diameter, and a plunger for engaging and disengaging the flange of the first electromagnetic mechanism plunger is provided on the plunger of the second electromagnetic mechanism and an elastic body is provided between the plunger and the second electromagnetic mechanism. A thick-walled tubular bearing material is fixed to the lock case, a large-diameter lock portion of the plunger of the first electromagnetic mechanism is fitted to the thick-walled tubular bearing material, and the first electromagnetic member is attached to the locking metal fitting. The first electromagnetic mechanism described above is provided with a lock hole for engaging and disengaging the mechanism plunger. Electromagnetic lock mechanism, characterized in that a tapered surface toward the return spring side to the end face periphery which engages the return spring of the flange in the plunger.