JPH07145679A - Locking and unlocking detection structure for electric lock - Google Patents

Abstract

PURPOSE:To obtain a structure for detection of locking and unlocking for an electric lock that is in a simple structure, free from quality deterioration, excellent in durability and waterproofness, and different from conventional structure of limiting switch type. CONSTITUTION:In an electric lock that can be worked for locking and unlocking by operation of a dead bolt and installed to doors of a gate, a rotor 1 that rotates together with a key and a thumb-turn on locking and unlocking is provided, and a detecting part composed of a metal contact 11 or the like is provided to the rotor 1. Locking is detected by turning of the rotor 1 through contact and electrification made between detecting parts formed of two metal contacts 21 or the like arranged facing each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock locking / unlocking detection structure. More specifically, the present invention relates to an electric lock / unlock detection structure having a simple structure and excellent in durability and water resistance.

[0002]

2. Description of the Related Art Conventionally, a fence of a house or the like is provided with a gate (a) as shown in, for example, FIG. 10, and the gate (a) has various structures for crime prevention. An electric lock (a) having a structure is installed. This electric lock (a)
Can automatically lock and unlock the door, prevents the gate from being left open and forgets to lock it, and securely closes the gate to ensure crime prevention.

In this electric lock (a), a locking / unlocking detection structure for surely grasping locking / unlocking is also adopted. As a conventional structure for detecting the electric lock / unlock, a well-known limit switch mechanism is used. More specifically, for example, as shown in FIG. 11, the open / closed state of the dead bolt (latch bolt) (c) and the gate for locking and unlocking and unlocking is detected, and locking is prohibited when protruding. Trigger bolt for (D)
Equipped with solenoid (e), thumb turn, gear (f) interlocking with key, interlock (ki), locking and unlocking detection gear (h), dead bolt retracting brake plate (ke), handle brake (ko), Electric lock (a) incorporating a latch bolt reversal braking plate (s), trigger position detection plate (s), gear braking element (s), limit switch (s), electric circuit (s), etc.
In the above, the lock is performed by pulling the solenoid (e) in the direction of the arrow (A) or by rotating the gear (f) interlocking with the thumb turn / key. That is, in any case, the dead bolt retracting brake plate (K) is locked by being rotated in the arrow direction.

In this electric lock (a), when electrically operating the solenoid (e), the solenoid (e)
When is pulled in the direction of the arrow (A), the interlocking member (K) is pulled in, and the dead bolt retracting precision plate (K) is rotated around the fulcrum in the direction of the arrow to be locked. When the gear (power) is mechanically rotated, the gear (power) is also locked by the rotation of the gear (power). At that time,
The lock / unlock detection gear (K) rotates, the limit switch (S) is pressed, and the electric circuit (SO) outputs the locked state (ON state).

As described above, conventionally, in the electric lock (a), its locking / unlocking (ON / OFF) is detected by mechanical transmission to the limit switch (SE).

[0006]

However, in the case of such a conventional locking / unlocking detection structure of an electric lock, electrically, the locking / unlocking by the solenoid (e) is followed by the limit which is the locking / unlocking detection means. In order to carry out mechanical transmission to the switch (s), it is necessary to use many members and parts for that, and not only the mechanism is complicated, but also a space for its arrangement is required, and the electric lock This is an obstacle to miniaturization. Moreover, the limit switch (S)
Since it adopts a spring structure, elastic deterioration is unavoidable for a long period of time, and there is a problem in durability as an electric locking / unlocking detection means.

Since the electric lock is installed outdoors,
The intrusion of rainwater and the effect of condensed water on the limit switch (C) is unavoidable, and the quality of the electric lock is likely to deteriorate. Therefore, the present invention eliminates the drawbacks of the conventional structure for detecting locking / unlocking of the electric lock,
It is an object of the present invention to provide a new electric lock / unlock detection structure having a simple structure and excellent in durability and water resistance.

[0008]

In order to solve the above problems, the present invention provides a gate-installed electric lock that is locked and unlocked by the operation of a dead bolt, which is provided with a rotor that rotates during locking and unlocking. (EN) A lock / unlock detection structure for an electric lock, characterized in that a detection unit is arranged on a rotor, and rotation of the detection unit detects locking / unlocking with an opposing detection unit.

According to the present invention, in the above-mentioned detecting structure, the detecting portion of the rotor and the facing detecting portion both constitute a current-carrying portion made of a metal contact, or a combination of a magnet and a reed switch, and Is a combination of a photo coupler and a window, etc.
One aspect is that it is a cylindrical stator that is in sliding contact with the rotor, and that the facing detector is provided on the dead bolt.

[0010]

According to the present invention having the above-described structure, unlike a conventional lock / unlock detection structure using a limit switch, a rotor detection unit, for example, a rotor detection unit interlocked with a key and a thumb turn is used. And O as an electrical, electromagnetic or optical switch mechanism between
Since the N / OFF detection structure is used, it does not require a large number of members or a space for arranging them, as in the case of the limit switch mechanism, and has a simple structure and saves space. Structure is possible. Moreover, unlike the limit switch, there is no fear of elastic deterioration of the spring, it has excellent durability, it is not affected by invading water or dew condensation water, it has good water resistance, and the quality of the electric lock does not deteriorate.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings, and the lock / unlock detection structure for an electric lock according to the present invention will be described in more detail. FIG. 1 of the accompanying drawings is an exploded perspective view of essential parts showing an example of a lock / unlock detection structure for an electric lock installed at a gate according to the present invention. For example, as illustrated in FIG. 1, in the electric lock locking / unlocking detection structure of the present invention, in the gate-installed electric lock locked / unlocked by the operation of the dead bolt, the rotor (1) that rotates during locking / unlocking is used. Is provided with a metal contact (11) as a detector, and the metal contact (1) as the detector is
A cylindrical stator (2) having two metal contacts (21) as an opposed detection unit for detecting a locked state by slidingly contacting with 1) is arranged.

This stator (2) is attached and fixed to the electric lock substrate (3) and is inserted into the void portion of the rotor (1) so that the metal contacts (11) (21) are connected to the rotor (1). ), So that it makes sliding contact. Metal contacts (11)
In the contact state, (21) is energized, and the locked ON state in the circuit device (4) is detected. On the other hand, this metal contact (11) (2
When 1) is not in contact, it is not energized and unlocked OF
The F state will be detected.

In this example, the rotor (1) is rotated by the thumb turn (5) and the key, and the thumb turn (5) is fixed by the fixing rod (7).
It is attached and fixed to. Further, when the key is inserted into the key hole (61) of the lock portion (6) and rotated, the protruding piece portion (62) rotates to rotate the rotor (1). 2 and 3 illustrate a stator (2) and a rotor (1), respectively. In a stator (2) made of metal or the like, insulation is provided by an insulating member (22) such as synthetic resin. Two metal contacts (21) as detectors on the outer surface of the hollow cylinder
Is composed of a current-carrying member such as copper. Further, also in the rotor (1), a metal contact (11) as a detection portion is made of a current-carrying member such as copper on the inner surface of the hollow cylindrical body insulated by the insulating member (12). The protrusion of the thumb turn (5) is inserted into the hollow portion (23) of the stator (2).

The operation of such a structure will be described as follows, for example. 1) Thumbnail (5) Turn the key. 2) The rotor (1) rotates. 3) It is locked by the locking mechanism that is interlocked with the rotor (1).

4) At this time, the two metal contacts (21) arranged on the stator (2) come into contact with the metal contacts (11) arranged on the rotor (1) to be short-circuited. 5) The circuit device (4) detects the energized state and the locked “ON” state. The detection structure based on this operation can be incorporated in the mechanism of FIG. 4 as an electric lock for installing a gate.

This electric lock includes a dead bolt (8) which is locked and unlocked by its operation, a solenoid (9) which is operated by sliding the dead bolt (8), and the dead bolt (8) is also rotated by a key and thumb turn (5). It is equipped with a rotor (1) actuated by means of a dead bolt (8) and a retracting brake plate (10). The rotor (1) is rotated by the rotation of the key and thumb turn (5) or by the rotation of the retracting brake plate (10) by the electric operation of the solenoid (9), and the above-described solution is applied. ON-OFF of the lock will be detected. Although the trigger bolt is omitted in FIG. 4, it goes without saying that the trigger bolt for detecting the open / closed state of the door is appropriately arranged, and the trigger bolt is not used. The open / closed state may be detected by the bolt (8) itself.

In the case of the lock / unlock detection structure of the present invention as described above, it is not necessary to use a member / part for dynamically transmitting the locked / unlocked state to the limit switch as in the conventional case.
The structure can be simplified and the arrangement space can be made smaller. Moreover, since the problem of elastic deterioration of the spring material in the case of the limit switch does not occur, the durability is excellent, and since the metal contacts (11) and (21) as the detection part are inside the hollow part of the rotor (1), waterproofing, It also has excellent dust resistance.

Of course, the detecting section is not limited to the energizing mechanism by the contact of the metal contacts as in the above example. It is conceivable to use a photo interrupter as various means, for example, an electromagnetic detection means or an optical detection means. FIG. 5 exemplifies an electromagnetic locking / unlocking detection means, in which a magnet (13) is provided as a detection unit in the rotor (1) which works in conjunction with the thumb turn and the key as described above, and the facing detection unit is provided. For this, a reed switch (20) is provided. In this case, for example, the locked state is detected by the position of the cylindrical or rod-shaped magnet (13) and the reed switch (20) facing each other as illustrated in FIG. 6, but the rotor (1). And reed switch (20)
There is no need to make sliding contact with, and there is no concern of wear deterioration due to contact of the detection part. The magnet (1
3) is positioned in front of the reed switch (20) by the rotation of the rotor, the reed switch (20)
Can be turned on and a lock signal can be output.

Since the reed switch (20) is hermetically sealed, unlike the conventional limit switch system, there is no influence of invading water or dew condensation, and a detection structure excellent in water resistance and durability is realized. FIG. 7 shows another example. In the case of this example, the metal contact (11) as the detection part of the rotor (1) is arranged at the tip of the protrusion (14) of the rotor (1), and this metal contact (11) is provided. Is the key,
The metal contact (8) of the dead bolt (8) extruded into a locked state by the rotation of the rotor (1) interlocked with the thumb turn.
1) is brought into contact with the device to bring it into an energized state, and this state outputs a ON signal as a locked state.

FIG. 8 shows this structure as a part of the mechanism of the electric lock installed at the gate. Dead bolt (8)
The movement of the rotor (1) that is more directly linked to the operation of
The structure of the lock / unlock detection by this is a feature of this example. Also in this case, as shown in FIGS. 9A and 9B, the rotor (1) is made of a conductive member such as copper via the insulating member (12) at the tip of the protrusion (14). It has metal contacts (11). The dead bolt (8) is provided with two metal contacts (8) made of a current-carrying member such as copper for contacting the metal contact (11) to detect and output the lock.
1) is provided via an insulating member (82).

Also in this structure, the inconvenience of the structure for detecting locking / unlocking using the conventional limit switch does not occur. Of course, the present invention is not limited to the above examples in details, and various embodiments are possible. It is not necessary to say that various mechanisms can be adopted as the mechanism of the electric lock itself.

[0022]

According to the lock / unlock detection structure of the electric lock installed at the gate according to the present invention, the following excellent effects can be obtained. 1) Unlike the conventional lock / unlock detection method using limit switches, members / parts for mechanical transmission to the limit switches are not required, and the structure is extremely simple. Further, the space is omitted, and the size can be reduced.

Cost reduction is possible. 2) In the case of the limit switch, elastic deterioration due to the spring material cannot be avoided, but in the present invention, such deterioration does not occur and the durability is excellent. 3) Since no inconvenience due to invading water or dew condensation occurs, a lock / unlock detection structure having good water resistance and dust resistance is realized.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing an example of a detection structure of the present invention.

FIG. 2 is a perspective view and a sectional view illustrating a stator in the structure of FIG.

3 is a cross-sectional view illustrating a rotor in the structure of FIG.

FIG. 4 is a vertical sectional view illustrating an electric lock incorporating the structure of FIG.

FIG. 5 is a perspective view of an essential part showing another example of the detection structure of the present invention.

FIG. 6 is a perspective view illustrating a rotor having the structure of FIG.

FIG. 7 is a side view of an essential part showing an operation example of still another structure of the present invention.

8 is a perspective view showing a main part of an electric lock incorporating the example of FIG.

9A and 9B are perspective views showing the detection unit of the example of FIG. 7, respectively.

FIG. 10 is an external perspective view showing how the electric lock is attached to the gate.

FIG. 11 is a vertical sectional view showing a conventional example using a limit switch.

[Explanation of symbols]

 1 Rotor 11 Metal Contact 12 Insulation Member 13 Magnet 14 Projection 2 Stator 21 Metal Contact 22 Insulation Member 20 Reed Switch 3 Electric Lock Board 4 Circuit Device 5 Thumb Turn 6 Lock Part 61 Keyhole 62 Projection Part 7 Thumb Turn Fixing Rod 8 Dead Bolt 81 Metal contact 82 Insulation member 9 Solenoid 10 Dead bolt retracting brake plate

Claims (5)

[Claims] 1. A gate-installed electric lock that is locked and unlocked by the operation of a deadbolt is provided with a rotor that rotates in conjunction with a key / thumb turn when locking and unlocking, and this rotor is provided with a detection unit. , A locking / unlocking detection structure for an electric lock, which detects locking / unlocking with an opposing detection unit by its rotation. 2. The detecting part of the rotor is a current-carrying part made of metal contacts, and the counter-detecting part is also made of metal contacts.
Detection structure. 3. The detection structure according to claim 1, wherein the detection unit of the rotor is a magnet, and the facing detection unit is a reed switch. 4. The detection structure according to claim 2, wherein the facing detection section is arranged on a cylindrical stator that is in sliding contact with the rotor. 5. The detection structure according to claim 2, wherein the facing detection portion is provided in a dead bolt that abuts a detection portion provided on the protrusion of the rotor.