JPH047347Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a security locking device for a door, and more specifically, when a door is partially opened while the security lock is locked, such as in response to an unexpected visitor. In particular, the present invention relates to a security lock device for a door that can be unlocked without changing the security lock.

[Conventional technology]

Conventionally, the doors installed at the entrances and exits of hotel rooms, condominiums, apartments, etc. are equipped with security chains.
They are used when responding to unexpected visitors by partially opening the door to interact with them, and are used as auxiliary locks to satisfy the safety and security of locking the door when sleeping at night.

However, the safety chain becomes tense when the door is partially opened, so in order to remove it, the door must be closed and the safety chain relaxed, which makes removal extremely troublesome and difficult. Ta.

Therefore, a door opening regulating mechanism consisting of a lever and an engaging member is provided between the door and its frame, and the engaging member is engaged and released between the operating lever and the operating lever attached to the inner surface of the door. A device has been proposed that uses a mechanism to restrict the opening and release the restriction to allow full opening, but since the operation of the operating lever is directly linked to the regulating mechanism, the mounting position of the operating lever cannot be adjusted. Since it was located close to the door, it still had a defect from a security standpoint.

[Problem that the invention attempts to solve]

The present invention was devised in view of the above-mentioned circumstances and to eliminate the drawbacks of the conventional methods. When the door is partially opened, if the visitor is a friend, acquaintance, or other close relative, the door can be easily locked as a precaution without having to close the door like a conventional chain. It is possible to switch to fully open by unlocking the
Another object of the present invention is to provide a security locking device for a door that allows the operating lever to be operated without being noticed by a visitor and in a position that ensures maximum security.

[Means to solve the problem]

In order to solve the above problems, the present invention employs the following means.

In other words, in a precautionary lock device that is installed between the doorway frame and the door to regulate the degree of opening of the door, and is also equipped with an operating lever on the door side, the control lever can be released to fully open the door. The regulatory mechanism of
The base end is horizontally rotatably supported by a horizontal member provided on the lintel, and consists of an operating arm with a long groove bored at the tip and an engagement member provided on the door side to release the opening. The mechanism includes a corner metal fitting that is disposed in a corner between the upper frame of the door and the upper part of the hanging base, and that changes the operation from a vertical direction to a horizontal direction in conjunction with the rotational operation of the operating lever. The corner hardware includes an angle-shaped support member fixed within the corner, horizontal rods and vertical rods slidably disposed along the inner surface of the support member, and corner fittings of these rods. The lower end of the vertical rod is connected to the operating lever via a vertical bar, and the horizontal rod has a horizontal bar at the tip, The engaging member is configured to be engaged with and disengaged from the long groove of the operating arm by the operation of a crank attached to the end.

[Effect]

The technical means described above works as follows.
In other words, when a door is opened with the security lock locked in order to respond to an unexpected visitor, the door will open between the long groove drilled at one end of the operating arm and the engaging member provided on the door side. The degree of opening is regulated by engagement, resulting in a partially open state. In this case, when a visitor senses danger, such as a pushy sale, during a conversation, the locked state can be ensured by simply closing the door, and no special locking operation is required.

On the other hand, if there is no danger to visitors, leave the door partially open and rotate the control lever. This will cause the vertical bar of the corner hardware to lower and move the vertical rod. The locking member is lowered and separated from the long groove through crank operation through sliding descent, direction change by the plate member, sliding of the horizontal rod, and sliding of the horizontal bar, so that the above-mentioned restriction is released. The door can be left fully open. Therefore, the security lock can be unlocked very simply and easily.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In Figures 1 to 7, 1 is a door installed at the entrance to a guest room of a hotel or an entrance to a condominium, an apartment, etc., and includes an upper frame 1a of the door 1 and a lintel located above the door. A door 1 is provided at one end between the support member 2a provided on the lower surface of the portion 2.
An actuating arm 4 with a long groove 3 for regulating the opening degree of the actuating arm 4.
, whose end is pivoted to the support member 2a via a pivot shaft 5 so as to be horizontally rotatable. 6 is the above-mentioned pivot shaft 5
This is the return bullet of the operating arm 4, which is wound around.

In the space facing the front plate 1b and back plate 1c of the door 1, a corner metal fitting 7 having a structure for changing the operating direction configured as follows is attached to the upper frame 1a of the door 1.
and the side frame 1d on the hanging base side. That is, as shown in FIGS. 3 and 7, the corner hardware 7 includes a right-angled support member 8 that is attached to the corner of the upper frame 1a of the door 1 and the side frame 1d on the side of the hanging base. A horizontal rod 9 and a vertical rod 10 located on the back surface of the inner corner and arranged orthogonally to each other, and a plate-like member 1 that pivots and connects the corner side bases of both rods 9 and 10 at an angle.
1 and 11. 12,12
is a rod bracket.

13 is a horizontal bar connected to the distal end of the horizontal rod 9 and disposed along the upper frame 1a of the door 1; A protrusion 15 as an engagement member is attached. 16 is bell crank 14
This is the base mounting plate.

Reference numeral 17 denotes a vertical bar connected to the lower end of the vertical rod 10 and disposed along the side frame 1d on the hanging side of the door 1; It is interlocked and connected to an operating lever 19 provided on the back plate 1c of 1. Thus, the projection 15 attached to the tip of the horizontal bar 13 is
The horizontal bar 13, the vertical bar 17, and the bell crank 1 slide in conjunction with the rotation of the operating lever 19.
4, the actuating arm 4 can be engaged with and disengaged from the long groove 3.

Note that 20 is a knob of the door 1, and 21 and 22 are reinforcing members of the door 1.

Since the present invention is constructed as described above, in order to respond to an unexpected visitor, the protrusion 15 of the horizontal bar 13 is kept engaged with the long groove 3 of the operating arm 4, that is, the precautionary lock is turned off. When the door 1 is opened while being locked, the degree of opening of the door 1 is regulated by the long groove 3 of the actuating arm 4 which rotates about the pivot shaft 5 as a fulcrum, and the door 1 is partially opened. In this case, when it is sensed that there is no danger to the visitor and the visitor is allowed to enter, leave the door 1 partially open as described above and move the operating lever 19 to the horizontal bar shown in FIG. 1
3 slides in the direction of arrow A, the protrusion 15 separates from the long groove 3 of the actuating arm 4 due to the rotation of the bell crank 14, and the guard lock is unlocked.At the same time, the actuating arm 4 The bullet quickly returns to the lower surface of the lintel 2 by the return bullet 6. Therefore,
If you want to lock the security lock if necessary after allowing a visitor into the room, close the door 1 and then turn the operating lever 19 in the opposite direction, so that the protrusion 15 engages with the long groove 3. This makes locking operations extremely easy.

[Effect of idea]

In short, in this invention, the opening regulating mechanism is
The base end is horizontally rotatably supported by a horizontal member provided on the lintel, and consists of an operating arm with a long groove bored at the tip and an engagement member provided on the door side to release the opening. The mechanism includes a corner metal fitting that is disposed in a corner between the upper frame of the door and the upper part of the hanging base, and that changes the operation from a vertical direction to a horizontal direction in conjunction with the rotational operation of the operating lever. The corner hardware includes an angle-shaped support member fixed within the corner, horizontal rods and vertical rods slidably disposed along the inner surface of the support member, and corner fittings of these rods. The lower end of the vertical rod is connected to the operating lever via a vertical bar, and the horizontal rod has a horizontal bar at the tip, Since the engaging member is configured to engage and disengage from the long groove of the operating arm by the operation of a crank attached to the end, the opening degree of the door is restricted to prevent suspicious visitors from entering the room. Intrusion can be prevented, and when visitors are allowed to enter the room, the door can be moved from the restricted door opening state to the fully open state by simply turning the control lever. Therefore, it is not only possible to unlock the security lock extremely easily and easily, but also to be able to operate the operating lever on the side of the door without the visitor noticing, and to ensure security in terms of crime prevention. Ru. In addition, since the opening degree of the door is controlled by the engagement between the long groove of the operating arm and the protrusion of the horizontal bar, the operating arm can also be used for indoor ventilation, which is extremely useful for practical purposes. This is effective.

[Brief explanation of the drawing]

The drawings show an embodiment of the security locking device according to the present invention, in which FIG. 1 is a schematic perspective view of a door equipped with the device of the present invention, and FIG. 2 is a front view of the main parts showing the locked state. Figure 3 is a front view of the corner hardware, Figure 4
The figure is a cross-sectional side view of the door in the locked state.
FIG. 6 is a front view showing the main parts of the actuating arm, FIG. 6 is a side view of the operating lever showing the door in section, and FIG. 7 is a perspective view of the corner hardware. 1...Door, 1a...Top frame, 1b...Surface plate,
1c...Back plate, 1d...Hanging side frame, 2...
Lint part, 2a... Support member, 3... Long groove, 4...
...Operating arm, 5... Pivot shaft, 6... Return ammunition,
7...Corner hardware, 8...Right angle support plate, 9...
...Horizontal rod, 10... Vertical rod, 11... Plate member, 12... Rod bracket, 13... Horizontal bar, 14... Bell crank, 15... Protrusion,
16...Bell crank base mounting plate, 17...Vertical bar, 18...Rotary disk, 19...Operation lever, 2
0...Knob, 21, 22...Door reinforcing plate.

Claims (1)

[Scope of utility model registration request] A safety lock device is installed between the doorway frame and the door to regulate the degree of opening of the door, and is equipped with an operating lever on the door side so that the door can be fully opened by releasing the restriction. The mechanism consists of an actuating arm whose base end is horizontally rotatable on a horizontal member provided on the lintel, a long groove bored at the tip, and an engaging member provided on the door side. The mechanism for releasing the button is a corner metal fitting that is arranged in the corner between the upper frame of the door and the upper part of the hanging base, and that changes the operation from the vertical direction to the horizontal direction in conjunction with the rotational operation of the control lever. The corner hardware is
An angled support member fixed in the corner, a horizontal rod and a vertical rod slidably disposed along the inner surface of the support member, and the ends of these rods on the corner side are bent diagonally. The lower end of the vertical rod is connected to the operating lever via a vertical bar, and the horizontal rod has a horizontal bar at the tip, which controls the operation of the crank attached to the outer end of the horizontal rod. A security locking device for a door, characterized in that the engaging member is configured to be engaged with and disengaged from a long groove of an operating arm.