JP3657035B2 - Locking device for open sliding door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device for an open state sliding door. The present invention is suitable for emergency exit sliding doors such as nursing homes and hospitals.
[0002]
[Prior art]
Conventionally, emergency exit sliding doors such as nursing homes and hospitals are often locked in cases other than emergency such as fires and emergencies. This is because the emergency exit is for emergency use, and opening the emergency exit completely has a management problem especially for the elderly and sick, and there may be an intrusion (thief) from the outside.
[0003]
However, even if it is an emergency exit, it does not mean that it must always be completely closed from a management point of view, and if the management problem can be solved, a person cannot pass for the purpose of ventilation. It would be more desirable if the sliding door could be locked or stopped with the open space set.
[0004]
[Problems to be solved by the invention]
However, conventionally, in emergency exit sliding doors such as nursing homes and hospitals, there is no open sliding door lock device that can set an open space to prevent people from entering and leaving the wind.
[0005]
In view of this, an invention according to claim 1 is to provide an open state sliding door locking device capable of setting the open space as described above. A specific object of the present invention is that a desired open space can be obtained by simply opening the sliding door by hand, while the locked state of the locking device is immediately controlled by remote operation in an emergency or when necessary. It can be released.
Another object of the present invention is to allow the engagement lock member to be easily incorporated into the sliding door frame.
[0006]
[Means for Solving the Problems]
The locking device for an open state sliding door according to the present invention is based on the relationship between the engaging lock member 10 as a magnetic body rotatably attached to the sliding door frame 2 and the mounting position of the engaging lock member 10. And an electromagnet member 20 that is fixedly provided on the door frame 21 side so that a desired open space 22 can be set between the door and the door frame 21. Is elastically urged inside the sliding door frame 2 by the spring force of the spring member 15 so that the claw portion 11a of the engaging claw piece 11 is separated from the electromagnet member 20, while the sliding door 1 is moved when energized. When opened, 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 during the movement of the sliding door 1. 11a engages with the engaging portion 27 of the electromagnet member 20, and the desired open space 2 Characterized in that but is set.
[0007]
Here, the “desired open space 22” refers to a gap between the sliding door 1 and the door frame 21 through which a normal average 2-3 year-old child cannot pass.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention shown in the drawings, an engagement lock member attached to a sliding door frame (vertical fence or upper and lower horizontal fences), and an electromagnet attached to the outer surface side of the door frame with respect to the engagement lock member The description will be made based on the engagement / disengagement relationship with the member.
[0009]
First, an example of the usage state of the present invention will be described with reference to FIGS. 1 is an emergency exit sliding door, for example. The sliding door 1 includes an ordinary general sliding door and a sliding door type window. As is well known, the sliding door 1 is of a type comprising a metallic hollow sliding door frame or window frame 2 and a glass 3 mounted in the sliding door frame 2. A pulley 4 is pivotally supported at the lower part of the sliding door 1 as shown in FIG.
[0010]
Next, 10 is an engagement lock member rotatably attached to 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 the present embodiment, the sliding door frame (vertical fence) 2 on the door bottom side. Instead of the attachment box 6, a support plate having an opening or a frame-like or bar-like support member may be attached to the lower part of the sliding door frame 2 in a horizontal state. In short, the attachment box 6 and the support member only need to be able to project and retract a claw portion 11a of an engagement claw piece described later from the lower surface of the sliding door frame 2 and to support the rear end portion of the engagement lock member 10. The mounting box 6 includes a box body 31 having one side opening, and a support plate 32 that is integrally fixed to the box body 31 via a plurality of fixing members 33 and has a window 34.
[0011]
Therefore, the engagement lock member 10 is pivotally supported via an attachment box 6 fixed in the lower part of the hollow sliding door frame 2 in this embodiment in consideration of the convenience of attachment. The engagement lock member 10 includes an engagement claw piece 11 and a magnet 12 fixedly attached to the rear end portion of the engagement claw piece 11, and the claw portion 11a of the engagement claw piece includes: It faces the opening described above. Further, a projecting shaft 13 supported by the mounting box 6 via the left and right shaft holes 7 is provided at the center portion of the engaging claw piece 11 (in place of the projecting shaft 13, a pivoting pin horizontally mounted on the mounting box 6 is also used. Is good).
[0012]
Next, 15 is a spring member that is appropriately housed in the lower part of the door butt and elastically urges the claw portion 11a of the engaging claw piece 11 to the inner side 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 mounted at the center of the engaging claw piece 11, and its one end 15 a is attached to the mounting box 6 of the sliding door frame 2 as shown in FIG. 4. The other end portion 15b is in contact with or pressed against the upper edge portion of the magnet 12 protruding from the engaging claw piece 11, respectively. The spring member 15 may appropriately employ a biasing spring that biases the engagement claw piece 11 in one direction, such as a plate spring or another coil spring.
[0013]
Next, 20 is an electromagnet member attached to the outer surface side of the door frame 21. As shown in FIG. 1, the attachment position of the electromagnet member 20 needs to be a “position for setting an open space 22 that wants to enter the wind but prevents people from going in and out”. Therefore, the 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 considered.
[0014]
Thus, the electromagnet member 20 includes a fixed frame 24 fixed at appropriate positions on the outer surface of the door frame 21 via a plurality of fixing tools 23, and an electromagnet 26 provided in the storage portion 25 of the fixed frame 24. A projecting engagement portion 27 that can be engaged 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). Reference numeral 28 denotes a rail of the door frame 21.
[0015]
In the above configuration, first, FIG. 2 shows a state when no power is supplied. This non-energized state is, of course, not only during a power failure, but is controlled by the remote control device in the case of an emergency such as a fire. Thus, when no power is supplied, 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. Therefore, the engagement lock member 10 rotates counterclockwise with reference to FIG. As a result, the claw portion 11 a of the engagement claw piece 11 is separated from the electromagnet member 20 and enters the sliding door frame 2. Therefore, the sliding door 1 can be completely opened.
[0016]
Next, FIG. 4 shows the energized state. This energized state is made when it is desired to set up the open space 22 that wants to blow in but prevents people from entering and leaving. Thus, when an energized state is established by the control of the remote control device, a magnetic force is generated in the electromagnet 26 of the electromagnet member 20. Therefore, 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 and resists the spring force of the spring member 15. Rotate. As a result, the claw portion 11 a of the engagement claw piece 11 engages with the engagement portion 27 of the electromagnet member 20. Therefore, even if it is going to open the sliding door 1 further than the open space 22, it is locked by the engagement lock member 10, and cannot be opened.
[0017]
Here, "the engagement lock member 10 corresponds to the polarity of the electromagnet member 20" means that at least the upper side of the electromagnet 26 is the S pole, the lower side of the magnet 12 is also the S pole, or the upper side of the electromagnet 26 is the N pole. For example, the lower side of the magnet 12 is a case where the same magnetic poles repel each other like 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 claw portion 11a of the engaging claw piece 11 has the upper side of the electromagnet 26 with respect to the S pole). This also includes the case where the N pole example) is taken into account.
[0018]
【Example】
Hereinafter, examples of the lock device for an open state sliding door according to the present invention “can set an open space that allows wind to enter but prevents people from entering and exiting” will be listed. In the description of the embodiments, the reference numerals described in the embodiments of the present invention are attached to the drawings as they are, or the same reference numerals are attached, and the redundant description is omitted.
[0019]
First, the first example described in the embodiment of the present invention will be described with reference to FIGS. The locking device X for an open state sliding door according to the first embodiment includes an engaging lock member 10 as a magnetic body rotatably attached to the sliding door frame 2 of the sliding door 1, and an attachment position of the engaging lock member 10. Therefore, 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 frame 2 and the door frame 21. The engagement lock member 10 is elastically urged inside the sliding door frame 2 by the spring force of the spring member 15 so that the claw portion 11a of the engagement claw piece 11 is separated from the electromagnet member 20. In this case, 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 eleven claw portions 11 a engage with the electromagnet member 20. Since the detailed configuration has been described in detail in the embodiment of the present invention, it will be omitted.
[0020]
Next, FIG. 6 thru | or 8 is the lock | rock apparatus X1 for open states sliding doors of 2nd Example. FIG. 6 is an explanatory diagram for explaining an embodiment using the second embodiment.
[0021]
This locking device X1 has a relationship between the sliding door 1A and the door frame 21A in relation to the engagement lock member 10A as a magnet piece rotatably attached to the sliding door frame 2A and the mounting position of the engagement lock member 10A. It is composed of an electromagnet member 20A fixedly provided on the door frame 21A side so that a desired open space 22A can be set between them, and when not energized, the engagement lock member 10A is engaged with the engagement claw piece 11A. The claw portion 11a is elastically urged inside the sliding door frame 2A by the spring force of the spring member 15A so as to be separated from the electromagnet member 20A. On the other hand, when energized, the engagement lock member 10A is connected to the electromagnet member 20A. The claw portion 11a of the engaging claw piece 11A is engaged with the electromagnet member 20A so as to correspond to the polarity and rotate against the spring force of the spring member 15A so that the sliding door does not open further than the desired open space 22A. Do That is, the second embodiment is different from the first embodiment in that the entire engagement lock member 10A is a magnet.
[0022]
Therefore, in the locking device X1 of the second embodiment, when the energizing lock member 10A is opened just above the electromagnet member 20A when energized, the magnetic pole portions (S and S) are connected to each other. Repel each other, while the portions of different magnetic poles (N and S) adsorb each other.
[0023]
Accordingly, the engagement lock member 10A rotates against the spring force of the spring member 15A and engages with the claw portion 11a of the engagement claw piece 11A or the engagement portion 27A of the electromagnet member 20A.
[0024]
Next, FIG. 9 thru | or FIG. 11 is the locking device X2 for open states sliding doors of 3rd Example. This locking device X2 is based on the relationship between 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, and between the sliding door frame 2B and the door frame 21B. It is composed of an electromagnet member 20B fixedly provided on the door frame 21B side so that a desired open space can be set between them, and when not energized, the engagement lock member 10B is connected to the engagement claw piece 11B. The claw portion 11b is elastically biased inside the sliding door frame 2B by the spring force of the spring member 15B so as to be separated from the electromagnet member 20B. On the other hand, when energized, the engagement lock member 10B is attracted to the electromagnet member 20B. In addition, the claw portion 11b of the engagement claw piece 11B engages with the electromagnet member 20B so as to move against the spring force of the spring member 15B and prevent the sliding door from further opening from a desired open space. That is, the second embodiment is different from the first embodiment in that the engagement lock member 10B is a metal piece.
[0025]
Thus, the engagement lock member 10B is provided with two spring accommodating portions 30 formed in the vertical direction with a required interval, and is housed in the mounting box 6B. The mounting box 6B includes a box body 31B having one side opening and a support plate 32B that is integrally fixed to the box body 31B via a plurality of fixing tools 33B. The support plate 32B includes: A through-hole 35 through which the window portion 34B facing the electromagnet 26B of the electromagnet member 20B and the claw portion 11b of the engaging claw piece 11B penetrate is formed.
[0026]
In the configuration described above, when the lock device X2 opens the sliding door 1B when energized, and the engagement lock member 10B reaches directly above the electromagnet member 20B, the engagement lock member 10B as a metal piece becomes the spring member 15B. Is attracted to the electromagnet member 20B against the spring force, and in this embodiment, it is lowered toward the electromagnet member 20B while maintaining the horizontal state. As a result, the claw portion 11b of the engagement lock member 10B is fixed to the fixing frame 24 of the electromagnet member 20B.
Lock to the upper edge of B.
[0027]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) It can be used for a nursing home, a sliding door window of a hospital, or an emergency exit sliding door, and a desired open space can be obtained with the sliding door locked. Therefore, management problems can be solved and at the same time the purpose of ventilation can be achieved.
(2) The door is automatically locked by simply opening the sliding door by hand, and a desired open space can be obtained reliably.
(3) The locked state of the locking 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 into the sliding door frame.
[Brief description of the drawings]
1 to 5 are explanatory diagrams for explaining embodiments of the present invention. 2 to 5 are explanatory diagrams 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 embodiment.
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 diagram of the first embodiment (in the energized state).
FIG. 5 is an explanatory view from the perspective 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 a second embodiment (the engagement lock member is in the position of a solid line when in a non-energized state, whereas it is the position of a virtual line when in an energized state).
FIG. 8 is an explanatory view from the perspective of the second embodiment.
FIG. 9 is a schematic cross-sectional explanatory view of a third embodiment (in a non-energized state).
FIG. 10 is an exploded perspective view of a third embodiment.
FIG. 11 is a schematic cross-sectional explanatory diagram of the third embodiment (in the energized state).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sliding door, 2 ... Sliding door frame, 6 ... Mounting box, 10 ... Engagement lock member, 11 ... Engagement claw piece, 11a ... Claw part, 12 ... Magnet, 15 ... Spring member, 20 ... Electromagnet member, 21 ... Door A frame, 22 ... an open space, 24 ... a fixed frame, 26 ... an electromagnet, 27 ... an engaging part.

Claims (3)

A desired opening between the sliding door frame 2 and the door frame 21 due to the relationship between the engagement lock member 10 as a magnetic body rotatably attached to the sliding door frame 2 and the mounting position of the engagement lock member 10. The electromagnet member 20 is fixedly provided on the door frame 21 side so that the space 22 can be set. When not energized, the engagement lock member 10 has the claw portion 11 a of the engagement claw piece 11. When the sliding door 1 is opened while being energized, the sliding door 1 is elastically biased inside the sliding door frame 2 by the spring force of the spring member 15 so as to move away from the electromagnet member 20. 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, and the claw portion 11 a of the engagement claw piece 11 becomes the engagement portion 27 of the electromagnet member 20. engaged, opening shape, wherein the desired open space 22 is set Sliding door for the locking device. The locking device for an open state sliding door according to claim 1, wherein the engagement lock member (10) is pivotally supported via a mounting box (6) fixedly provided in the lower part of the sliding door frame (2 ). A desired opening between the sliding door frame 2B and the door frame 21B 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. It is composed of an electromagnet member 20B fixedly provided on the door frame 21B side so that a space can be set. When not energized, the engagement lock member 10B has an electromagnet formed by an nail portion 11b of the engagement claw piece 11B. The sliding door 1B is elastically biased to the inside of the sliding door frame 2B so as to be separated from the member 20B. On the other hand, when energized, the sliding door 1B is opened, and the engagement is performed while the sliding door 1B is moving. When the lock member 10B reaches directly above the electromagnet member 20B, the engagement lock member 10B as a metal piece is attracted to the electromagnet member 20B against the spring force of the spring member 15, and the claw portion of the engagement lock member 10B. 11b Locked to the upper edge of the fixed frame 24B of the magnet member 20B, the locking device for open sliding door, characterized in that the desired open space 22 is set.

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