JP2003221953A - Thumb turn locking and unlocking confirmation mechanism and door using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thumb turn locking and unlocking confirmation mechanism capable of easily detecting the locking and unlocking state of a door. <P>SOLUTION: A thumb turn 12 attached in a freely attachable and detachable manner to a bearing of the lock installed to a door 4 is provided, a shaft portion to which the thumb turn 12 is attached to its bearing and a knob portion 101 coupled to the whole of the shaft portion is provided, a magnet 26 is attached to the knob 101, and a reed switch 27 of which the contact is opened or closed in response to the magnet is attached to either an indoor surface of the door 4 or a thumb turn seat 106 of the thumb turn. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thumb-turn locking / unlocking confirmation mechanism of a type in which a reed switch is opened / closed by a magnet and a door using the same.

[0002]

2. Description of the Related Art Generally, a door having a thumb turn detachably attached to a bearing of a lock attached to the door is known. In this type, for example, as a crime prevention against an unauthorized entry from the outside, a system has been proposed in which a sensor detects that a door is opened, sounds an alarm, and notifies the resident etc. of the unauthorized entry. ing.

[0003]

However, in the conventional configuration, although the opening of the door is detected, the locked / unlocked state such as thumb turn is not detected.

Therefore, an object of the present invention is to solve the problems of the above-mentioned conventional techniques and provide a thumb-turn locking / unlocking confirmation mechanism and a door using the same, which can easily detect the locked / unlocked state of the door. Especially.

[0005]

The invention according to claim 1 is
A thumb turn is detachably attached to the lock bearing attached to the door, and the thumb turn is provided with a shaft portion attached to the bearing and a knob portion integrally connected to the shaft portion. Attaches a reed switch that opens and closes the contact in response to the magnet when the magnet is attached and the thumb turn is in either the locked or unlocked position to either the interior surface of the door or the thumb turn seat of the thumb turn. It is characterized by that.

According to a second aspect of the present invention, in the first aspect, a reed switch unit accommodating the reed switch is provided.
It is characterized in that it is adhered to either the inner surface of the door or the thumb turn seat of the thumb turn via an adhesive sheet.

The invention according to claim 3 is the invention according to claim 1 or 2.
It is characterized by being provided with the described thumb-turn locking / unlocking confirmation mechanism.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a door device, which is constructed by attaching a door 4 to a frame 2 made of aluminum via a hinge 3 so as to be openable and closable. The frame 2 is
An upper frame 2a, a lower frame 2b, and left and right vertical frames 2c and 2d are provided.

The door 4 is provided with a knob 80 and an outdoor lock 11. As shown in FIG. 2, a key 100 is inserted into the outdoor lock 11, and when the key 100 is rotated, the lock member 7 projects toward the vertical frame 2c, and a lock provided on the vertical frame 2c. The outdoor lock 11 is locked by fitting into the seat 8.

Further, a thumb turn 12 is provided on the indoor side in conjunction with the outdoor lock 11, and when the knob portion 101 of the thumb turn 12 is pinched and rotated, the lock member 7 is also released. The outdoor lock 11 is locked by protruding to the side of the vertical frame 2c, fitting into a seat 8 provided on the vertical frame 2c.

FIG. 3 is an exploded perspective view of the thumb turn 12.

This thumb turn 12 is a thumb turn seat 10
6, a knob portion 101 that is rotatably attached to the thumb turn seat 106, and a shaft portion 102 that rotates together with the knob portion 101. The shaft portion 102 includes the outdoor lock 1
It is configured to be mounted on the first bearing 103. 104
Is a rubber packing.

Then, as shown in FIG. 4, thumb turn 1
Only the detachable knob part 101 of 2 is exposed to the indoor side,
Other than that, the thumb turn seat 106 is fixed to the door 4 with the screw 105 while being housed inside the door 4.

In this embodiment, a permanent magnet 26 is embedded in the side surface of the knob portion 101, and an adhesive sheet (not shown) is provided on the indoor side surface of the door end frame of the door 4 facing the permanent magnet 26. The reed switch unit 27 is attached via the.

The reed switch unit 27 has a built-in reed switch (not shown) whose contacts are switched by the permanent magnet 26, and this reed switch is connected to the chamber of the door frame of the door 4 via the lead wire 28. Transmitter 2 fixed to the inner surface via an adhesive sheet (not shown)
9 is connected.

Here, the permanent magnet 26 faces the reed switch unit 27 when the knob portion 101 is in a substantially horizontal position (locked position), but the invention is not limited to this, and the knob portion 101 is in a substantially upright position (unlocked position). The permanent magnet 26 may be configured to face the reed switch unit 27 when in the lock position).

5 to 7 show the knob portion 101.

5A to 5C, the knob portion 101 is resin-molded, and the knob portion 1
A permanent magnet 26 is integrally molded inside one side of 01. In addition, in what is shown in FIGS. 6A to 6C,
The knob 101 is made of, for example, stainless steel, and a resin cover 107 is fitted to the knob 101, and the permanent magnet 2 is provided inside one side of the cover 107.
6 is integrally molded, or the permanent magnet 26 is fitted.

7A to 7C, the knob portion 101 is made of, for example, a resin, and a resin cover 109 is fitted to the knob portion 101, and both ends of the cover 109 are respectively attached. The planned magnet storage portion 109A is formed, and the permanent magnet 26 is stored in any of the planned magnet storage portions 109A. According to this, the magnet can be selectively housed in either one of the two magnet housing planned portions 109A, so that it can be made easy to use.

Next, the operation will be described.

As shown in FIG. 4, the thumb turn 12 is locked when the knob portion 101 is in a substantially horizontal position, and is rotated in the direction of arrow A so that the knob portion 1 is rotated.
When 01 reaches the substantially upright position, it is unlocked.

That is, at the position shown in FIG. 4, the reed switch embedded in the reed switch unit 27 receives the magnetic force of the permanent magnet 26 and its contact (not shown) is closed to detect the locked state. , When the knob portion 101 is rotated in the direction of arrow A and reaches the substantially upright position,
The magnetic force of the permanent magnet 26 ceases to act, the contact of the reed switch opens, and the unlocked state is detected.

The signal indicating the locking and unlocking is the lead wire 28.
Is sent to the transmitter 29 via the, and is sent from the transmitter 29, for example, wirelessly to a monitoring monitor device (not shown). For example, as a crime prevention against an unauthorized entry from the outside, the monitoring device or the like sounds an alarm device or the like to notify the resident or the like of the fact of the unauthorized entry when it detects that the lock is unlocked.

In the present embodiment, unlike the conventional one, not only the opening / closing of the door 4 is detected but the open / closed state of the thumb turn 12 is detected, so that illegal entry, forgetting to lock, etc. can be reliably and accurately performed. Can be detected.

Since the detection device is composed of a combination of the permanent magnet 26 and the reed switch, compared with the case of using a mechanical micro switch or the like, no mechanical contact is required and a compact design is possible.

Further, according to the above structure, the present detection device can be easily retrofitted to the existing thumb turn 12.

In the case of retrofitting this detection device, referring to FIG. 3, the screw 105 is removed, and the knob portion 101 and the shaft portion 102 are integrally removed for each thumb turn seat 106, and these are made into a magnet 26 built-in type. Replace and Samturn 106
Each time, the knob portion 101 with the built-in magnet and the shaft portion 102 are attached to the door 4 via the screws 105.

Next, the reed switch unit 27 is attached to the inner surface of the door end frame of the door 4 via an adhesive sheet (not shown).

According to this, for each thumb-turn seat 106, the knob portion 101 and the shaft portion 102 with built-in magnets are attached to the door 4, and the inner surface of the door end frame of the door 4 is attached with an adhesive sheet, Since only the reed switch unit 27 is attached and the transmitter 29 is connected to the reed switch unit 27 via the lead wire 28, the present detection device can be retrofitted to the existing thumb turn 12 very easily.

Although the present invention has been described based on the embodiment, it is obvious that the present invention is not limited to this. For example, in the above-described embodiment, the reed switch unit 27 is attached to the indoor surface of the door 4, but the present invention is not limited to this, and the reed switch unit 27 can be attached to the thumb turn seat 106 of the thumb turn 12. Although the frame door has been described in the above embodiment, the present invention is not limited to this and can be applied to a flush door and the like.
Further, in the above-described embodiment, the case lock in which the knob 80 and the thumb turn 12 are separate bodies has been described.
It can also be applied to a lock in which the knob and thumb turn are concentrically arranged. In this case, the reed switch corresponding to the permanent magnet attached to the knob portion of the thumb turn is attached to the knob. Furthermore, the present invention can be applied to a main lock that is separate from the knob.

[0032]

According to the present invention, not only the opening / closing of the door can be detected but also the open / closed state of the thumb turn can be detected. Therefore, illegal entry, forgetting to lock, etc. can be detected reliably and accurately. it can.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a door according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an exploded perspective view of a thumb turn.

FIG. 4 is a plan view of a thumb turn.

5A is a top view of a thumb turn, B is a front view, and C is a side view.

FIG. 6A is a top view of a thumb turn, B is a front view, and C is a side view.

FIG. 7A is a top view of a thumb turn, B is a front view, and C is a side view.

[Explanation of symbols]

1 Door device 4 doors 11 outdoor locks 12 Sam Turn 26 Permanent magnet 27 Reed switch unit 101 knob 106 Sam Turn 107 cover

Claims (3)

[Claims] 1. A thumb turn detachably attached to a bearing of a lock attached to a door, the thumb turn including a shaft portion attached to the bearing, and a knob portion integrally connected to the shaft portion. , A magnet is attached to this knob, and when the thumb turn is in either of the locking and unlocking positions, the reed switch that opens and closes the contact in response to the magnet is attached to the inner surface of the door or the thumb turn seat of the thumb turn. A thumb turn locking / unlocking confirmation mechanism characterized by being attached to either of the above. 2. A reed switch unit accommodating the reed switch is provided, and the reed switch unit is bonded to either the interior surface of the door or the thumb turn seat of the thumb turn via an adhesive sheet. The thumb-turn locking / unlocking confirmation mechanism according to claim 1. 3. A door provided with the thumb-turn locking / unlocking confirmation mechanism according to claim 1.