JPH0949359A - Locking device for sliding door at opened state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desired open space while a sliding door is kept locked, i.e., resolve a problem on management and attain the object for ventilation, by using this locking device for the sliding window of a special nursing old-age home or the sliding door of an emergency exit. SOLUTION: This locking device is constituted of a coupling lock member 10 made of a magnetic substance and rotatably fitted to a sliding door frame 2 and an electromagnet member 20 fixed on a door frame 21 side so that a desired open space 22 can be set between a sliding door 1 and the door frame 21 according to the fitting position of the coupling lock member 10. At the time of the nonconducting state, the coupling lock member 10 is elastically excited by the spring force of a spring member 15 to the inside of the sliding door frame 2 so that the pawl section 11a of a coupling pawl piece 11 is separated from the electromagnet member 20. At the time of the conducting state, the coupling lock member 10 is rotated against the spring force of the spring member 15 in response to the polarity of the electromagnet member 20, and the pawl section 11a of the coupling pawl piece 11 is coupled with the electromagnet member 20 so that the sliding door 1 is not opened farther than the desired open space 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for an open sliding door. INDUSTRIAL APPLICABILITY The present invention is suitable for emergency exit sliding doors such as nursing homes and hospitals.

[0002]

2. Description of the Related Art Conventionally, emergency exit sliding doors such as nursing homes and hospitals are often locked at times other than emergency such as fire or emergency. This is because the emergency exit is for emergency use only, and opening the emergency exit completely has management problems especially for the elderly and the sick, and there is also the possibility of intrusion from outside (thief).

However, an emergency exit does not necessarily mean that it must be completely closed from the viewpoint of management, and if the management problem can be solved,
For the purpose of ventilation, it is more desirable to be able to lock or stop the sliding door with an open space where people cannot pass.

[0004]

However, conventionally,
In emergency doors such as nursing homes and hospitals, there is no open door lock device that can set an open space to prevent people from entering and exiting, but want to put in the wind.

Therefore, an invention according to claim 1 is to provide a lock device for an open state sliding door which can set the above-mentioned open space. A specific object of the present invention is to ensure that a desired open space can be obtained by simply opening the sliding door by hand.On the other hand, in an emergency or when necessary, the lock state of the lock device can be immediately set by remote control. It is possible to cancel. It is another object of the present invention to allow the engagement lock member to be easily incorporated in the sliding door frame.

[0006]

SUMMARY OF THE INVENTION An open state sliding door locking device of the present invention includes an engaging locking member 10 as a magnetic body rotatably mounted on a sliding door frame 2 and the engaging locking member 1.
It is composed of an electromagnet member 20 fixedly provided on the door frame 21 side so that a desired open space 22 can be set between the sliding door 1 and the door frame 21 in relation to the mounting position of 0. When not energized, the engagement lock member 10 is elastically biased by the spring force of the spring member 15 inside the frame 2 so that the claw portion 11a of the engagement claw piece 11 is separated from the electromagnet member 20. On the other hand, when energized, the engagement lock member 10 corresponds to the polarity of the electromagnet member 20 and rotates against the spring force of the spring member 15 so that the sliding door does not open further than the desired open space 22. The claw portion 11 a of the engaging claw piece 11 is engaged with the electromagnet member 20.

Here, the "desired open space 22" refers to a gap between the sliding door 1 and the door frame 21 that a normal average 2-3 year old cannot pass through.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention shown in the drawings, an engagement lock member attached to a frame (vertical frame or upper and lower horizontal frames) of a sliding door, and a door frame for the engagement lock member. The engagement and disengagement with the electromagnet member attached to the outer surface side will be described.

First, an example of a usage state of the present invention will be described with reference to FIGS. 1 to 5. 1 is, for example, an emergency exit sliding door. The sliding door 1 includes an ordinary sliding door and a sliding door type window. As is well known, a type of a sliding door 1 which is made of a metal hollow sliding door frame or window frame 2 and a glass 3 mounted in the sliding door frame 2 is widely used. And
At the lower part of the sliding door 1, a pulley 4 is appropriately pivoted as shown in FIG.

Next, 10 is an engagement lock member rotatably mounted on the sliding door frame 2 of the sliding door 1. A mounting box 6 having an opening is fixedly installed in the lower part of the sliding door frame 2, in this embodiment, the sliding door frame (vertical frame) 2 on the side of the door.
Instead of the attachment box 6, a support plate having an opening or a frame-shaped or rod-shaped support member may be attached to the lower part of the sliding door frame 2 in a horizontal state. In short, the mounting box 6 and the supporting member may be such that the claw portions 11a of the engaging claw pieces, which will be described later, can be retracted from the lower surface of the sliding door frame 2 and can support the rear end portion of the engagement lock member 10. It should be noted that the mounting box 6 includes a box body 31 having an opening on one side, and the box body 31.
And a support plate 32 having a window 34, which are integrally fixed to each other via a plurality of fasteners 33.

In consideration of the convenience of mounting, the engagement lock member 10 is pivotally supported by the mounting box 6 fixed in the lower portion of the hollow sliding door frame 2 in this embodiment. The engagement lock member 10 includes an engagement claw piece 11 and
The magnet 1 fixedly attached to the rear end of the engaging claw piece 11.
2 and the claw portion 11a of the engaging claw piece faces the above-mentioned opening. Further, in the central portion of the engaging claw piece 11, a projection shaft 13 supported by the mounting box 6 via left and right shaft holes 7 (a pivot pin supported laterally on the mounting box 6 instead of the projection shaft 13) Good.) Is provided.

Next, reference numeral 15 denotes a spring member which is appropriately installed in the lower portion of the door bottom and which elastically biases the claw portion 11a of the engaging claw piece 11 toward the inside of the sliding door frame 2 at all times. In this embodiment, the spring member 15 is a torsion spring, which is a kind of coil spring attached to the central portion of the engaging claw piece 11, and is shown in FIG.
As shown in FIG. 1, one end 15a thereof is a bar-shaped stopper 16 horizontally provided inside the mounting box 6 of the sliding door frame 2, while the other end 15b is above the magnet 12 protruding from the engaging claw piece 11. The edges are abutted or pressed against each other. The spring member 15 may appropriately employ a biasing spring such as a leaf spring or another coil spring that biases the engaging claw piece 11 in one direction.

Next, 20 is an electromagnet member attached to the outer surface side of the door frame 21. The mounting position of the electromagnet member 20 needs to be "the position for setting the open space 22 for preventing the entry and exit of a person who wants to enter the air," as shown in FIG. Therefore, the lateral width of the sliding door 1 to be opened and the position of the engagement lock member 10 attached to the door bottom should be taken into consideration.

Therefore, the electromagnet member 20 is provided in the fixed frame 24 fixed to the outer surface of the door frame 21 at a proper position via a plurality of fasteners 23, and in the housing portion 25 of the fixed frame 24. And an electromagnet 26, and a protruding engagement portion 27 that can engage with the claw portion 11a of the engagement claw piece 11 is formed at the upper end of the fixed frame 24 on the sliding door opening side. The electromagnet 26 is exposed from the opening of the fixed frame 24 so that the magnetic force can be exerted in the best state. The electromagnet 26 is electrically connected to a power source and a remote control device (not shown). Incidentally, 28 is a rail of the door frame 21.

In the above construction, first, FIG. 2 shows a state in which the power is not supplied. This non-energized state is controlled by the remote control device in the event of an emergency such as a fire, as well as during a power failure. Then, in the non-energized state, no magnetic force is generated in the electromagnet 26 of the electromagnet member 20, but the rear end portion of the engagement lock member 10 is always attached to the outside of the sliding door frame 2 by the spring force of the spring member 15. Since it is biased, the engagement lock member 10 rotates counterclockwise with reference to FIG. As a result, the claw portion 11a of the engaging claw piece 11 separates from the electromagnet member 20 and enters the sliding door frame 2. Therefore,
The sliding door 1 can be completely opened.

Next, FIG. 4 shows a state of energization. This energized state is an open space 2 that wants to let in wind but prevents people from entering and leaving.
This is done when you want to set 2. Then, when the power is turned on by the control of the remote control device, a magnetic force is generated in the electromagnet 26 of the electromagnet member 20. Then, when the sliding door 1 is opened by hand and the engagement lock member 10 approaches the electromagnet member 20,
The engagement lock member 10 corresponds to the polarity of the electromagnet member 20,
Moreover, it rotates against the spring force of the spring member 15. As a result, the claw portion 11a of the engaging claw piece 11 engages with the engaging portion 27 of the electromagnet member 20. Therefore, the sliding door 1 is opened to the open space 22.
Even if it tries to open further, it is locked by the engagement lock member 10 and cannot be opened.

Here, "the engagement lock member 10 corresponds to the polarity of the electromagnet member 20" means at least the electromagnet 26.
If the upper side of S is the S pole, the lower side of the magnet 12 is also the S pole, or if the upper side of the electromagnet 26 is the N pole, the lower side of the magnet 12 is also the N pole. Therefore, not only when the same magnetic poles repel each other as in this embodiment, but also when different magnetic poles attract each other (the upper side of the electromagnet 26 is the S pole, the claw portion 11 of the engaging claw piece 11 is different).
The case where a is an example of N pole) is also included.

[0018]

EXAMPLES Examples of the open state locking device for a sliding door according to the present invention will be enumerated below, in which "a person wants to enter the wind but can set an open space for preventing people from entering and exiting." In the description of the embodiments, the reference numerals described in the embodiments of the invention are attached to the drawings as they are, or the same reference numerals are attached, and the duplicated description will be omitted.

First, the first embodiment described in the embodiment of the present invention will be described with reference to FIGS. The open state sliding door locking device X of the first embodiment includes an engaging lock member 10 as a magnetic body rotatably mounted on the sliding door frame 2 of the sliding door 1, and a mounting position of the engaging lock member 10. In relation to the above, the electromagnet member 20 is fixedly provided on the door frame 21 side so that a desired open space 22 can be set between the sliding door 1 and the door frame 21, and when not energized. Then, the engagement lock member 10 has the claw portion 11a of the engagement claw piece 11.
Is elastically urged toward the inside of the frame 2 by the spring force of the spring member 15 so as to be separated from the electromagnet member 20, while the engagement lock member 10 corresponds to the polarity of the electromagnet member 20 when energized, Further, the claw portion 11a of the engaging claw piece 11 engages with the electromagnet member 20 so as to rotate against the spring force of the spring member 15 and prevent the sliding door from opening further than the desired open space 22. The detailed detailed configuration has been described in the embodiments of the present invention, and will be omitted.

Next, FIGS. 6 to 8 show an open state sliding door locking device X1 of the second embodiment. FIG. 6 is an explanatory diagram for explaining the embodiment using the second embodiment.

This lock device X1 is an engaging lock member 10A as a magnet piece rotatably mounted on a sliding door frame 2A.
And a mounting position of the engagement lock member 10A, a desired open space 22 is provided between the sliding door 1A and the door frame 21A.
It is composed of an electromagnet member 20A fixedly provided on the side of the door frame 21A so that A can be set, and when the energization lock member 10A is not energized, the engaging portion 11A of the engaging claw piece 11A has an electromagnet. Sliding door frame 2A away from member 20A
Is elastically urged by the spring force of the spring member 15A inside the
On the other hand, when energized, the engagement lock member 10A corresponds to the polarity of the electromagnet member 20A and rotates against the spring force of the spring member 15A so that the sliding door does not open further than the desired open space 22A. The claw portion 11a of the engaging claw piece 11A
Engages with the electromagnet member 20A. That is, the second embodiment is different from the first embodiment in that the entire engagement lock member 10A is a magnet.

Thus, the lock device X of this second embodiment
When the sliding door 1A is opened and the engaging lock member 10A reaches directly above the electromagnet member 20A when energized, the portions (S and S) having the same magnetic pole repel each other, while the portions having different magnetic poles (N and S) are attracted to each other.

Therefore, the engagement lock member 10A rotates against the spring force of the spring member 15A, and the engagement claw piece 11A.
It engages with the claw portion 11a of the above or the engaging portion 27A of the electromagnet member 20A.

Next, FIGS. 9 to 11 show an open state sliding door locking device X2 of the third embodiment. This lock device X2
Is a desired opening between the sliding door 1B and the door frame 21B in relation to the engagement lock member 10B as a metal piece slidably mounted on the sliding door frame and the mounting position of the engagement lock member 10B. Door frame 21B so that the space can be set
And an electromagnet member 20B fixedly provided on the side,
The engagement lock member 10B is engaged with the engagement claw piece 1 when not energized.
The claw portion 11b of 1B is elastically urged by the spring force of the spring member 15B inside the sliding door frame 2B so as to be separated from the electromagnet member 20B, while the engaging lock member 10 is energized when energized.
B is attracted to the electromagnet member 20B, and the spring member 15
The pawl portion 11b of the engaging pawl piece 11B moves so as to resist the spring force of B and prevent the sliding door from opening further than a desired opening space.
Engage with the electromagnet member 20B. That is, the second embodiment is different from the first embodiment in that the engagement lock member 10B is a metal piece.

Thus, the engagement lock member 10B is provided with the two spring accommodating portions 30 formed in the vertical direction with a required space, and is internally mounted in the mounting box 6B. The mounting box 6B includes a box body 31B having an opening on one side and a support plate 32 integrally fixed to the box body 31B via a plurality of fasteners 33B.
B, and the support plate 32B has an electromagnet member 20
Window portion 34B facing the electromagnet 26B of B and the engaging claw piece 11B
Through holes 35 through which the claw portions 11b penetrate are formed respectively.

In the above structure, the lock device X2 opens the sliding door 1B at the time of energization to open the engagement lock member 10B.
When it hits directly above the electromagnet member 20B, the engagement lock member 10B as a metal piece is attracted by the electromagnet member 20B against the spring force of the spring member 15B, and in this embodiment, the electromagnet member is kept horizontal. It descends to the 20B side. As a result, the claw portion 11b of the engagement lock member 10B engages with the upper edge portion of the fixed frame 24B of the electromagnet member 20B.

[0027]

As is clear from the above description, the present invention has the following effects. (1) It can be used for sliding door windows or emergency exit sliding doors in nursing homes and hospitals, and a desired open space can be obtained with the sliding doors locked. Therefore, the problem of management can be solved and the purpose of ventilation can be achieved at the same time. (2) By simply opening the sliding door by hand, the sliding door is automatically locked, and a desired open space can be reliably obtained. (3) The lock state of the lock device can be immediately released by remote control in an emergency or when necessary. (4) In the invention according to claim 2, the engagement lock member can be easily incorporated in the sliding door frame.

[Brief description of drawings]

1 to 5 are explanatory views for explaining an embodiment of the present invention. In particular, FIGS. 2 to 5 are explanatory views of the first embodiment of the present invention. 6 to 8 are explanatory views showing a second embodiment of the present invention. 9 to 11 are schematic explanatory views showing a third embodiment of the present invention.

FIG. 1 is an explanatory diagram for explaining an embodiment using a first example.

FIG. 2 is a schematic cross-sectional explanatory view of the first embodiment (in a non-energized state).

FIG. 3 is an exploded perspective view of a main part of the first embodiment.

FIG. 4 is a schematic cross-sectional explanatory view of the first embodiment (when energized).

FIG. 5 is a perspective view of the first embodiment.

FIG. 6 is an explanatory diagram for explaining an embodiment using a second example.

FIG. 7 is a schematic cross-sectional explanatory view of the second embodiment (the engagement lock member is in the position of a solid line in the non-energized state, and is in the position of a virtual line in the energized state).

FIG. 8 is a perspective view of the second embodiment.

FIG. 9 is a schematic cross-sectional explanatory view of the third embodiment (in the non-energized state).

FIG. 10 is an exploded perspective view of the third embodiment.

FIG. 11 is a schematic cross-sectional explanatory view of the third embodiment (when energized).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sliding door, 2 ... Sliding door frame, 6 ... Mounting box, 10 ... Engaging lock member, 11 ... Engaging claw piece, 11a ... Claw part, 12 ...
Magnet, 15 ... Spring member, 20 ... Electromagnet member, 21 ... Door frame, 22 ... Open space, 24 ... Fixed frame, 26 ... Electromagnet, 2
7 ... Engagement part.

Claims (3)

[Claims] 1. An engagement lock member 10 as a magnetic body rotatably mounted on a sliding door frame 2, and this engagement lock member 1.
In relation to the mounting position of 0, the electromagnet member 20 is fixedly provided on the door frame 21 side so that a desired open space 22 can be set between the sliding door 1 and the door frame 21, When not energized, the engagement lock member 10 is elastically urged by the spring force of the spring member 15 inside the frame 2 so that the claw portion 11a of the engagement claw piece 11 is separated from the electromagnet member 20.
On the other hand, when energized, the engagement lock member 10 corresponds to the polarity of the electromagnet member 20 and rotates against the spring force of the spring member 15 so that the sliding door does not open further than the desired open space 22. An open state sliding door locking device in which the claw portion 11a of the engaging claw piece 11 is engaged with the electromagnet member 20. 2. The engagement lock member 10 according to claim 1.
Is a pivot device supported by a mounting box 6 fixedly provided in the lower portion of the sliding door frame 2 for locking the sliding door in the open state. 3. The sliding door 1B and the door frame 2 in relation to the engagement lock member 10B as a metal piece slidably mounted on the sliding door frame 2B and the mounting position of the engagement lock member 10B.
The electromagnet member 20 fixedly provided on the door frame 21B side so that a desired open space can be set between the 1B and 1B.
B, and the engagement lock member 10 when not energized
B is elastically urged by the spring force of the spring member 15B inside the sliding door frame 2B so that the claw portion 11b of the engaging claw piece 11B moves away from the electromagnet member 20B, while the engagement lock occurs when the power is supplied. The member 10B is attracted to the electromagnet member 20B and moves against the spring force of the spring member 15B, so that the sliding door does not open further than a desired open space.
The locking device for an open state sliding door, characterized in that the claw portion 11b is engaged with the electromagnet member 20B.