JP2003239595A - Locking metal fitting for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking metal fitting for a sliding door effective in prevention or deterrence of an unlocking operation by an illicit technique and capable of ensuring locking even if the sliding door is slightly opened. <P>SOLUTION: This locking metal fitting 1 for the sliding door is provided with a box type cover 4, which is fixed to the end face of a door frame 2a for the sliding door 2 on one side (interior side) and opened on the interior side, a padlock storable inside the box type cover 4, a crescent lock 6 arranged on one side face 4a of the box type cover 4, and a slide receiving seat 8 fixed on the face facing the interior side of a door frame 3a of the sliding door 3 on the other side (exterior side). When a pair of sliding doors 2 and 3 are opened/closed alternately, the slide receiving seat 8 is moved inward/outward to/from the box type cover 4 via a slit 7 formed in the box type cover 4. <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 sliding door locking metal fitting for locking a set of sliding doors for opening and closing an opening of a building or a doorway of a room in the building.

[0002]

Conventionally, in a pair of sliding doors which are opened and closed in a mutually sliding manner, a crescent lock is fixed to the side end of one of these sliding doors, and There was provided a locking metal fitting configured to engage a claw of a crescent lock with the hook in a state where a hook is fixed to the other sliding door and the pair of sliding doors are closed. Such a locking metal fitting has been provided in a sliding door solely for the purpose of crime prevention, such as preventing unauthorized entry into a house or so-called burglary.

[0003] However, as sliding doors, there are many popular ones in which a window glass is fitted inside the door frame, and the crescent lock is operated by a finger inserted into the room through a hole made by breaking the window glass. I could easily remove the claw from the hook and break into the building. Further, there is a problem that the crescent lock cannot be locked if the sliding door is opened even a little in order to ventilate the room for the purpose of preventing dew condensation and preventing mold.

Therefore, an object of the present invention is to provide a locking metal fitting for a sliding door, which has the effect of preventing or suppressing the unlocking by an unfair technique, and which can surely lock even when the sliding door is slightly opened. .

[0005]

A locking metal fitting for a sliding door according to the present invention is a locking metal fitting provided on a pair of sliding doors.
A box-shaped cover fixed to one of these sliding doors and open to the inside, a padlock that can be stored inside this box-shaped cover, and a crescent lock provided inside the box-shaped cover,
And a slide seat fixed to the other of the pair of sliding doors and moving in and out of the box cover through a slit formed in the box cover. With the pair of sliding doors opened, the slide seats are pulled out from the box-shaped cover, and with the pair of sliding doors closed, the slide seats are inserted into the box-shaped cover. The padlock is locked and locked in the receiving hole formed in the seat, and the crescent lock is engaged with the hook piece formed in the slide seat.

Further, the sliding door locking metal fitting according to the present invention comprises:
The box-shaped cover is provided with a hanger for suspending the padlock above the receiving hole of the slide seat inside the box-shaped cover.

Further, the locking fitting for the sliding door according to the present invention is
A lock fitting provided on a pair of sliding doors, a box-shaped cover fixed to one of these sliding doors and having an open interior side, a crescent lock fixed to one side surface inside the box-shaped cover, and The box-shaped cover is fixed to the other side inside the box-shaped cover and has a lockable dead bolt, and a slit fixed to the other of the pair of sliding doors and formed in the box-shaped cover. And a slide seat that moves in and out. With the pair of sliding doors opened, the slide seats are pulled out from the box-shaped cover, and with the pair of sliding doors closed, the slide seats are inserted into the box-shaped cover. The dead bolt of the main lock is connected to the receiving hole formed in the receiving seat, and the crescent lock is engaged with the hook piece formed in the slide receiving seat.

Further, according to the locking mechanism of the sliding door of the present invention, the key inserted into the key hole of the inner cylinder of the main lock is pushed inward of the inner cylinder to allow the dead bolt to receive the slide receiving seat. By entering the hole and rotating the key, the dead bolt rotates together with the inner cylinder,
The male screw formed at this tip is screwed into the receiving hole of the slide seat.

Further, in the lock fitting of the sliding door according to the present invention, the slide seat suspends a swing piece via a hinge on the inside of the slide seat, and the swing hole is formed in the swing piece.

Further, in the sliding door locking metal fitting according to the present invention, the slide receiving seat is formed with a plurality of the receiving holes and the hook pieces at predetermined intervals in the opening / closing direction of the sliding door. is there.

Further, the locking metal fitting of the sliding door according to the present invention is a locking metal fitting provided on a pair of sliding doors, and is a box-shaped cover fixed to one of the sliding doors and opened to the inside, and A protective door that is openably and closably provided on the inside of the box-shaped cover, a door lock that locks or unlocks this protective door, a crescent lock provided inside the box-shaped cover, and a pair of the sliding doors. A slide seat that is fixed to the other side and moves back and forth in and out of the box cover through a slit formed in the box cover. With the pair of sliding doors open, the slide seats are pulled out of the box cover, and with the pair of sliding doors closed, the slide seats are inserted into the box cover, the crescent The lock is engaged with a hook piece formed on the slide seat, the defense door is closed, and the door lock is locked.

The sliding door locking metal fitting according to the present invention is a locking metal fitting provided on a pair of sliding doors, and is a box-shaped cover fixed to one of the sliding doors and having an open interior side, and this box. A crescent lock fixed to one side inside the mold cover, a main lock fixed to the other side inside the box cover and having a dead bolt that can be operated by a key, and fixed to the other of the pair of sliding doors. And a slide seat that moves forward and backward through the slit formed in the box cover. With the pair of sliding doors open, the slide seats are pulled out of the box cover, and with the pair of sliding doors closed, the slide seats are inserted into the box cover, the crescent By engaging the lock with the hook piece formed on the slide seat, and by rotating the key inserted into the key hole of the inner cylinder of the main lock, the dead bolt protrudes to one side and the crescent. Lock
The claw pieces are restrained in a posture in which they are engaged with the hook pieces.

Further, in the lock fitting of the sliding door according to the present invention, the slide seat is composed of a block body in which the hook piece is formed.

Further, in the sliding door locking fitting according to the present invention, the crescent lock forms an arcuate claw piece engageable with the hook piece around the pivot of a lever provided on the outer surface of the main body housing. , When the pivot is rotated to take a posture in which the pawl piece engages with the hook piece, a tumbler coupled to the pivot shaft in the main body housing is provided with a lock pawl that is spring-biased so as to abut against the tumbler. By locking, the rotation of the pivot is blocked, and a thin lever extending outside the main body housing is joined to the lock claw, and the thin lever is pushed back against the spring bias. The lock claw is separated from the tumbler.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A lock fitting for a sliding door according to a first embodiment of the present invention will be described with reference to FIGS.
In the figure, an arrow a indicates the indoor side and an arrow b indicates the outdoor side. As shown in FIGS. 1 and 2, the sliding door locking fitting 1
Is provided in a pair of sliding doors 2 and 3, and a box-shaped cover 4 fixed to an end surface of a door frame 2a of one of the sliding doors 2 (inside the indoor side) to open the indoor side, and this box. A padlock 5 that can be stored inside the mold cover 4, a crescent lock 6 provided on one side surface 4a inside the box cover 4, and a surface of the door frame 3a of the other (outdoor side) sliding door 3 facing the interior side. And a fixed slide seat 8. When the pair of sliding doors 2 and 3 are opened and closed by sliding, the slide seats 8 move in and out of the box cover 4 through the slits 7 formed in the box cover 4.

Each of the pair of sliding doors 2 and 3 has lip grooves 2b and 3b formed on the inner peripheral portions of the door frames 2a and 3a, which are framed by an aluminum sash bar.
The peripheral portions of the window glasses 2d and 3d are fitted into b and 3b via packing materials 2c and 3c. The pair of sliding doors 2 and 3 close the opening of the building in the state shown in FIG.
The pair of sliding doors 2 and 3 can be opened by moving (pulling) them in the directions indicated by arrows c and d in FIG. It is also possible to open only the sliding door 2 or only the sliding door 3.

The box-shaped cover 4 may be formed by pressing a steel plate, but may be formed by injection molding of a thermoplastic synthetic resin, casting of aluminum or zinc, or the like, or by joining a plurality of pieces. . A spacer 17 may be interposed between the end surface of the door frame 2 a of the sliding door 2 and the box-shaped cover 4. As shown in FIGS. 1 and 3 (a), notches 4b are formed in the upper and lower portions of the box-shaped cover 4, respectively. The notch 4b is provided to prevent a finger or the like from being caught on the rim of the box cover 4 when the padlock 5 shown in FIG. Alternatively, when the padlock 5 or the crescent lock 6 is locked or unlocked, consideration is given so that these operations can be performed efficiently.

The slit 7 has a surface facing the outdoor side of the door frame 2a and a surface facing the indoor side of the door frame 3a with the pair of sliding doors 2 and 3 as shown in FIG. 1 being closed. Is opened at a position adjacent to the gap t. Regarding the opening size of the slit 7, the width may be about 20 to 50 mm and the thickness may be about 5 to 10 mm.

Since the padlock 5 is a well-known technique, its detailed illustration is omitted, but as shown in FIG. 2, a plurality of dial rings 5b are rotatably provided on the side of the main body 5a so as to be rotatable. It suffices to open the gap between one end of the U-shaped bar 5c connected to the main body 5a and the main body 5a by adjusting the arrangement of the numbers on the peripheral surface of the dial ring 5b to a specific number. . The specifications of the padlock 5 are not limited to such a dial type, but may be a cylinder type or a magnet type.

In the slide seat 8 shown in FIG. 1, a swing piece 9 is hung from the inside of the slide seat via a hinge 9a, and a receiving hole 10 is formed in the swing piece 9. The hinge 9a is shown in FIG.
As shown in FIG. 3B, the slide seat 8 is composed of a pair of opposed pieces 9b formed by cutting and raising a part of a metal plate such as steel or stainless steel, and a split pin 9c. The split pin 9c penetrates the pair of opposed pieces 9b and the swing piece 9 arranged between them, and plays a role of a hinge pin. In addition, a pin other than the split pin 9c may be used as a hinge pin.

The receiving hole 10 may be a long hole as shown in FIGS. 1 and 2 so that the U-shaped bar 5c of the padlock 5 can be easily inserted. For example, as shown in FIG. 3 (b). like,
It may be a round hole having a diameter of 4 to 6 mm or a screw hole formed with an M4 to 6 female screw. Although the two types of swinging pieces 9 have been described above, the split pin 9c can be freely attached and detached, so that the two types of swinging pieces 9 can be replaced. In particular, when the padlock 5 and the main lock 13 (FIG. 4) described later are exchanged, it is easy to replace the rocking piece 9 with a type suitable for each.

Further, the slide seat 8 has a hook piece 11 formed on the indoor side thereof, and has two screw insertion holes 8a formed at one end thereof. The hook piece 11 has a predetermined dimension in the direction in which the pair of sliding doors 2 and 3 is opened and closed from the receiving hole 10, for example, 10
This is a hook-shaped cut and raised at a position separated by -25 mm. Screws or the like for fastening the slide seat 8 to the surface of the door frame 3a facing the indoor side are inserted into the screw insertion holes 8a in the posture shown in FIG. Swinging piece 9 and hook piece 11
Is set to a size that can pass through the slit 7 of the box-shaped cover 4, but the padlock 5 in which the U-shaped bar 5c is hooked in the receiving hole 10 of the swinging piece 9 cannot pass through the slit 7 and therefore slides. It is possible to prevent the seat 8 from coming out of the box-shaped cover 4. That is, the pair of sliding doors 2 and 3 cannot be opened.

A detailed structure of the crescent lock 6 will be described later. As shown in FIG. 1, the lever 21 is provided on the outer surface of the main body housing 20 fixed along one side surface 4a of the box-shaped cover 4.
And a claw piece 22 curved in an arc shape is formed around the pivot 21a of the lever 21. As is apparent from FIG. 1, in a posture in which the lever 21 is erected upward, the hook piece 11 of the slide receiving seat 8 is engaged with the claw piece 22, and the pair of sliding doors 2 and 3 are locked. become. Then, when the lever 21 in this posture is pulled toward the indoor side (front side) and turned 180 ° so as to face downward, the hook piece 11 moves to the claw piece 22.
Will be released, and the pair of sliding doors 2 and 3 will be unlocked.

An operation procedure of the sliding door locking fitting 1 will be described.
That is, when the pair of sliding doors 2 and 3 are open, the slide receiving seat 8 comes out from the box-shaped cover 4, and when the pair of sliding doors 2 and 3 is closed, the slide receiving seat 8 enters the box-shaped cover 4. To do. Receiving hole 1 of slide seat 8 that has entered box-shaped cover 4
As shown in FIG. 2, when the U-shaped bar 5c is hooked and the padlock 5 is locked at 0, a set of sliding doors 2, 3 are set as described above.
Cannot be released. That is, the padlock 5 functions as the main lock.

In addition to this, the claw piece 22 of the crescent lock 6
Is engaged with the hook piece 11 of the slide seat 8 and the crescent lock 6 is locked, so that the pair of sliding doors 2 and 3 can be locked doubly. Therefore, even if the window glasses 2d, 3d are punctured, for example, to make a hole in the window glass 2d, 3d, and the crescent lock 6 can be unlocked with the fingers inserted into the room, the padlock 5 can be used to set a pair of sliding doors 2. It is possible to reliably prevent the opening of 3.

Further, as shown in FIG. 1, a hanger 12 for suspending the padlock 5 may be provided inside the box-shaped cover 4. The hanger 12 is for positioning the padlock 5 with the U-shaped bar 5c hooked on the hanger 12 above the receiving hole 10 of the slide receiving seat 8 that has entered the box-shaped cover 4.
The material and shape of the hanger 12 are not limited, and for example, one end of the screw shaft may be fastened to the box-shaped cover 4 with a nut or the like.

Next, a locking metal fitting for a sliding door according to a second embodiment of the present invention will be described. FIG. 4 shows a main part of the locking metal fitting of the sliding door, and the same components as those in the first embodiment are designated by the same reference numerals to avoid redundant description. That is, the locking fitting of the sliding door includes the box cover 4, the crescent lock 6, the slide seat 8, and the main lock 13 shown in FIG.

The main lock 13 is a cylinder lock having a dead bolt 15 which can be operated by a key 14. More specifically, the inner cylinder 16 of the main lock 13 is urged in the direction of arrow a by a coil spring or the like loaded in a lower portion 18a of a cylinder case 18 accommodating an outer cylinder (not shown) of the main lock 13. The cylinder case 18 is fixed to the inside of the box-shaped cover 4 with screws or the like with its side surface (front surface in the drawing) 18b aligned with the other side surface 4c of the box-shaped cover 4 shown in FIG.

As shown in FIG. 4, when the key 14 inserted in the key hole of the inner cylinder 16 is pushed inward of the inner cylinder 16 pointed by the arrow b against the coil spring or the like, the dead bolt 15 is inserted.
The tip of the is projected from the outer cylinder 18. This projecting stroke corresponds to the receiving hole 1 of the slide receiving seat 8 that has entered the box-shaped cover 4.
The length of the dead bolt 15 is set to be longer than the depth of 0 so that the tip of the dead bolt 15 can be retracted.

Further, if a male screw is formed on the tip of the dead bolt 15 and a female screw is formed on the inner circumference of the receiving hole 10 of the slide receiving seat 8, the key 14 is rotated and the dead bolt 15 is rotated together with the inner cylinder 16. By doing so, the tip of the dead bolt 15 protruding from the outer cylinder 18 can be screwed into the receiving hole 10 and the dead bolt 15 can be coupled to the slide receiving seat 8. Thereby, the slide seat 8 can be firmly fixed in the box-shaped cover 4. Then, when the key 14 is pulled out from the inner cylinder 16, the locking of the pair of sliding doors 2 and 3 is completed.

In addition to this, by locking the crescent lock 6 as described above, the pair of sliding doors 2 and 3 can be locked double. Therefore, even if an unauthorized intruder opens the crescent lock 6 by the above-described method, it is possible to reliably prevent the main lock 13 from opening the pair of sliding doors 2 and 3.

As shown in FIG. 5, a pair of slits 7 are formed at opposite positions on both side surfaces 4a and 4c of the box-shaped cover 4, and then a slide receiving seat 8 is provided with a receiving hole 10 and a hook piece. 1
1 and 2 may be formed at a predetermined interval in the opening and closing directions of the sliding doors 2 and 3, respectively (two positions are shown in the figure). In this case, the additional length of the receiving hole 10 and the hook piece 11 increases the total length of the slide receiving seat 8, and when the pair of sliding doors 2 and 3 is closed, the box-shaped cover 4 is inserted from the slit 7 of the one side surface 4a. The left end 8b of the slide receiving seat 8 in the figure projects out of the box-shaped cover 4 through the slit 7 of the other side surface 4c. However, if the box-shaped cover 4 is made larger than the entire length of the slide seat 8, the above-mentioned protrusion does not occur, and therefore the slit 7 may be formed only on one side surface 4a of the box-shaped cover 4.

As described above, with the pair of sliding doors 2 and 3 closed, the sliding door locking metal fitting 1 according to the first embodiment.
In this case, the U-shaped bar 5c of the padlock 5 is hooked on the receiving hole 10 and the hook piece 11 on the right side of the drawing, and the claw piece 22 of the crescent lock 6 is engaged. In the case of the sliding door locking metal fitting according to the second embodiment, the dead bolt 15 of the main lock 13 is coupled to the receiving hole 10 and the hook piece 11 on the right side of the drawing, and the crescent lock 6 is locked. Engage the claw piece 22.

When the pair of sliding doors 2 and 3 are slightly opened, the tip portion 8b of the slide seat 8 is moved to the slit 7 of the other side surface 4c.
More retracted into the box-shaped cover 4. In this state, the padlock 5 is hooked and the claw piece 22 is engaged with the receiving hole 10 and the hook piece 11 near the left side (the tip portion 8b) in the figure, respectively, in the same manner as described above. Alternatively, the dead bolt 15 is coupled and the claw piece 22 is engaged. Accordingly, even if the pair of sliding doors 2 and 3 are slightly opened, the pair of sliding doors 2 and 3 can be locked doubly.

Next, the above-mentioned crescent lock 6 will be described in detail with reference to FIG. 6A and 6B are operation explanatory views of the inside of the crescent lock 6 as seen from the direction of arrow c in FIG. 1, where FIG. 6A shows an unlocked state, FIG. 6C shows a locked state, and FIG. ) Indicates the process between (a) and (c), respectively. However, a part of the illustration is omitted in FIG.

The crescent lock 6 includes a tumbler 23, which is connected to a pivot 21a of a lever 21, in a main body housing 20.
A hairpin spring 24 that clamps the same, a stopper 25 that can slide along a vertically extending linear guide hole 20a formed in the main body housing 20, and a lock claw that can move up and down in the lower portion of the main body housing 20. 26 and a thin lever 27 joined thereto are housed.

The body housing 20 is a vertically long rectangular metal box body, and the body housing 20 itself constitutes one side surface 4a of the box-shaped cover 4.
Two screw insertion holes 2 for inserting screws etc. for fastening to
0b is formed. The tumbler 23 has a pair of projecting pieces 23a and 23b formed on opposite sides of the tumbler 23. The stopper 25 holds the side surface of the main body housing 20 together with the button 28 that slides on the outer surface of the main body housing 20 along the guide hole 20a.

The lock claw 26 is a casting of zinc formed in an outer shape so as not to come into contact with other parts in the main body housing 20, and a drilled hole 26a formed at the lower end thereof is loaded with a coil spring 29. The spring 29 is urged upward by 29 so as to hit the tumbler 23.
The width dimension of the lock claw 26 is set so that a slight gap is formed between the lock claw 26 and the inner side surface of the main body housing 20.
The lock claw 26 can move up and down within the main body housing 20, but will not fall or rotate. The front end of the thin lever 27 is adjacent to the button 28 and is seen through the guide hole 20a to the outside of the main body housing 20.

The crescent lock 6 in the state of FIG. 6 (a)
When the lever 21 is pulled toward the indoor side and rotated in the direction of the arrow e1 to the state of FIG. 6B, the hairpin spring 24 is spread by the pair of projecting pieces 23a and 23b of the tumbler 23. This imparts a certain degree of rotational resistance to the pivot shaft 21a, thereby preventing the lever 21 from rotating inadvertently. Further, since the stopper 25 comes into contact with the protruding piece 23a of the tumbler 23 which rotates in the direction of arrow e1 at its inclined surface 25a, the stopper 25 is pushed upward while making sliding contact with the rotation of the tumbler 23. Therefore, the lever 21
When is rotated in the direction of arrow e1, the rotation is not blocked regardless of the position of the stopper 25.

When the lever 21 is further rotated in the direction of arrow e1, the state shown in FIG. 6 (c) is reached. This is the state of the crescent lock 6 shown in FIG. 1, and is the state in which the lever 21 in the state of FIG. 6A is rotated 180 ° in the direction of arrow e1. That is, when the projecting piece 23b of the tumbler 23 is engaged with the corner 26a of the lock claw 26 biased by the coil spring 29, the pivot 21a is prevented from rotating in the arrow e2 direction. On the other hand, when the stopper 25 is lowered by pushing the button 28 downward with a finger or the like, the upright surface 25 of the stopper 25 is lowered.
b is adjacent to the protruding piece 23a of the tumbler 23. Since the upright surface 25b is a surface orthogonal to the rotation direction of the protruding piece 23a, the rotation of the pivot 21a in the arrow e2 direction is prevented. Therefore, when the locking of the crescent lock 6 is completed, the pivot 21a is doubly locked.

When the crescent lock 6 is unlocked, the button 2
When the stopper 25 is lifted by pushing up 8 with a finger or the like, the upright surface 25b of the stopper 25 becomes tumbler 2.
3 will be separated from the protruding piece 23a. In addition to this, using a sharp tool such as a screwdriver,
By pushing the tip of the thin lever 27 downwards against the urging force of the coil spring 29, the lock claw 26 is moved to the tumbler 2.
When separated from 3, the pivot 21a becomes rotatable. While keeping the state where the lock claw 26 is separated from the tumbler 23, the lever 21 in the state shown in FIG. 6C is pulled toward the indoor side and rotated 180 ° in the direction opposite to the arrow e1.
Return to the state of (a). As a result, the crescent lock 6 is unlocked.

Next, a locking metal fitting for a sliding door according to a third embodiment of the present invention will be described. FIG. 7 shows a main part of the locking metal fitting of the sliding door, and the same components as those in the first and second embodiments are designated by the same reference numerals to avoid redundant description. That is, the locking metal of the sliding door is a box-shaped cover 30 fixed to the end surface of the door frame 2a of the one sliding door 2, a protection door 31 provided on the inside of the box-shaped cover 30 so as to be openable and closable, and this protection A door lock 32 for locking or unlocking the door 31, a crescent lock 6, and a slide seat 8 are provided.

The box-shaped cover 30 has a shape in which only the inside of the box is open, and a defense door 31 is attached to one side surface 4a via a hinge or the like so as to be openable and closable. The arrangement of the hinge or the like may be appropriately set on the other side surface 4c of the box-shaped cover 30 or on the upper or lower portion of the rim of the box-shaped cover 30. Door lock 32
Since it is a self-evident technique, detailed illustration is omitted, but it is preferable that it is a cylinder lock that can be locked or unlocked by a duplicate key or the like. In addition to this, a dial type or a magnet type may be used.

Since the slide receiving seat 8 applied to the locking metal fitting of the sliding door according to the third embodiment does not have the receiving hole 10 described above, the entire length thereof is shortened accordingly. Along with this, the entire box-shaped cover 30 can be downsized. Slide seat 8
The whole is shown in FIG. Hook piece 11 of slide seat 8
However, the point that the slide seat 8 is formed by cutting and raising a part of a metal plate such as steel or stainless steel into a hook shape is as described above. The screw insertion hole 8a bored in the slide seat 8 is inserted with a screw or the like for fastening to the surface of the door frame 3a facing the indoor side with the slide seat 8 in the posture shown in FIG.

When the protection door 31 is opened, the box-shaped cover 30 is opened.
It is possible to lock or unlock the crescent lock 6 by putting a finger inside and operating the crescent lock 6. By locking the crescent lock 6, further closing the defense door 31 and locking the door lock 32, the pair of sliding doors 2 and 3 can be locked double. Therefore, similarly to the above, it is possible to reliably prevent improper intrusion.

As shown in FIG. 9, a plurality of hook pieces 11 may be formed on the slide seat 8 at predetermined intervals in the direction in which the sliding doors 2 and 3 are opened and closed (each shown in three positions). In this case, the additional length of the hook piece 11 increases the total length of the slide seat 8.
Therefore, as shown in FIG. 7, both side surfaces 4 of the box-shaped cover 4 are
When a pair of slits 7 are formed at the opposite positions of a and 4c, respectively, the slide seat 8 that has entered the box-shaped cover 4 from the slit 7 of the one side surface 4a with the pair of sliding doors 2 and 3 closed. The tip portion 8b on the left side in the figure projects outside the box-shaped cover 4 through the slit 7 on the other side surface 4c.
However, if the box-shaped cover 4 is made larger than the entire length of the slide seat 8, the above-mentioned protrusion does not occur, and therefore the slit 7 may be formed only on one side surface 4a of the box-shaped cover 4.

When a plurality of hook pieces 11 are formed on the slide seat 8 as described above, if the pair of sliding doors 2 and 3 shown in FIG. 7 are slightly opened, the slide seat 8 shown in FIG. The tip portion 8b retracts into the box-shaped cover 4 from the slit 7 on the other side surface 4c. In this state, the claw piece 22 is engaged with the hook piece 11 located on the left side or the center in the figure. Further, the defense door 31 is closed and the door lock 32 is locked. As a result, even if the pair of sliding doors 2 and 3 are slightly open, the pair of sliding doors 2 and 3 can be opened to two.
Can be heavily locked. Further, the opening degree of the pair of sliding doors 2 and 3 can be appropriately adjusted by engaging the claw piece 22 with the hook piece 11 located on the left side or in the center in the drawing. Furthermore, a hook piece 1
If 1 is added to four or more places, the range in which the opening degree of the sliding doors 2 and 3 can be adjusted can be widened or the adjustment steps can be set finely.

Further, in FIG. 9, the hook pieces 11 are cut and raised to form a single plate-like restricting piece 19. This is for the following reason. That is, in order to prevent the pair of sliding doors 2 and 3 from moving in the relative opening direction while the claw piece 22 is engaged with the hook piece 11, the hook piece 11 has a shape in which the tip portion 8b side is closed. Has become. However, when the pair of sliding doors 2 and 3 are moved in the relative closing direction, the claw piece 22 moves to the hook piece 1.
It will be possible to leave from 1. Therefore, in the state where the claw piece 22 is engaged with either the left-hand side or the center-side hook piece 11 in the drawing, the claw piece 22 serves as a stopper in order to prevent the claw piece 22 from coming off the hook piece 11. A restriction piece 19 is provided.

The following points can be considered as an inconvenience when the claw piece 22 separates from the hook piece 11. For example, when the claw piece 22 is engaged with the hook piece 11 located on the left side in the figure, and then the pair of sliding doors 2 and 3 is moved in the relative closing direction, the claw piece 22 is located on the left side in the figure. Separate from the piece 11. If, in this state, forgetting to unlock the crescent lock 6 and forcibly closing the sliding doors 2 and 3, the claw piece 22 collides with the hook piece 11 located at the center of the slide receiving seat 8, and both are closed. May be damaged. Therefore, by providing the restriction piece 19 between the hook pieces 11, such inconvenience can be surely avoided.

Next, an embodiment in which a horizontal rail is provided on the sliding door 3 will be described. In the above description, the sliding door 2,
3 is a single window glass 2 for each door frame 2a, 3a
An example in which d and 3d are fitted is illustrated. Therefore, in FIG.
Alternatively, only one end of the slide receiving seat 8 shown in FIG. 5 is screwed to the door frame 3a of the sliding door 3, but inside the door frame 3a of the other sliding door 3 as shown in FIG. Side rail 33
You may cross over in a horizontal position.

The horizontal rail 33 forms a hook piece 11 and a restricting piece 19 on the indoor side thereof, and serves as the slide seat 8. At both ends of the horizontal rail 33, four screw insertion holes 33a are drilled, two at two positions. As described above, the hook piece 11 and the restriction piece 19 of the horizontal rail 33 are formed by cutting and raising a part of a metal plate such as steel or stainless steel forming the horizontal rail 33. Four screw insertion holes 33a are formed at each of two ends of the horizontal rail 33, and screws or the like for fastening both ends of the horizontal rail 33 to the surface of the door frame 3a facing the indoor side are inserted.

Although only one hook piece 11 may be provided on the horizontal rail 33, a plurality of hook pieces 11 and restriction pieces 19 may be formed at a predetermined interval in the opening / closing direction of the sliding doors 2, 3. good. In this case, as shown in FIG.
Side surfaces 4a of the box-shaped cover 4,
It is essential to form a pair of slits 7 at the opposite positions of 4c.

Alternatively, as shown in FIG. 11 (a), the slide seat 8 may be a block body 34 on which the hook piece 11 is formed. The block body 34 is a metal block formed into a substantially rectangular shape as a whole by injection molding, cutting or forging. A step is engraved on one end of the block body 34, and the hook 22 of the crescent lock 6 can be engaged with the hook-shaped portion formed by the step. That is, one end of the block body 34 is the hook piece 11.

To fix the block body 34 to the sliding door 3,
As shown in FIG. 6B, both ends of the horizontal rail 33 are fixed to the door frame 3 a, and the block body 34 is fixed to the inside of the horizontal rail 33. In this case, a screw or the like inserted through the screw insertion hole 8c that is formed through the block body 34 is fastened to the horizontal rail 33. Although only one block body 34 may be provided on the horizontal rail 33, a plurality of block bodies 34 may be formed at predetermined intervals in the opening / closing direction of the sliding doors 2, 3.

Besides this, as shown in FIG. 12, sliding doors 2 and 3 are provided.
Has cross rails 2e and 3e, that is, door frames 2a and 3a
When the two window glasses 2d and 3d are fitted in and the cross rails 2e and 3e are arranged between the two window glasses 2d and 3d, one or more cross rails 2e and 3e are provided. The block body 34 may be screwed. As described above, when the hook piece 11 is formed on the block body 34, the restriction piece 19 may be omitted. This is because the adjacent block bodies 34 restrict the claw pieces 22 from coming off the hook pieces 11 with each other.

Next, a lock fitting for a sliding door according to a fourth embodiment of the present invention will be described with reference to FIG. Only the main parts of the locking metal fittings of the sliding door are shown in the figure, and the same configurations as those of the first to third embodiments are designated by the same reference numerals to avoid duplication of description. That is, the locking metal of the sliding door includes the box cover 4, the crescent lock 6, the main lock 35,
The slide seat 8 is provided.

As the slide seat 8, one in which the block body 34 is fixed to the inner side of the horizontal rail 33 as shown in the figure may be applied, but the one already exemplified in FIGS. 8 to 11 is used. You may apply. Such a slide seat 8 emerges from the inside of the box-shaped cover 4 or passes through the inside of the box-shaped cover 4 in accordance with the opening / closing operation of the pair of sliding doors 2 and 3 is the same as in the first to third embodiments. As described in the form.

The main lock 35 is a cylinder lock having a dead bolt 36 that can be operated by a key. Dead bolt 36
Is the inner cylinder of the cylinder directly connected to the keyhole 37 (not shown)
Is rotated with the above key, the cylinder case 38 in which the outer cylinder of the above cylinder is housed is projected and retracted. This protruding / retracting direction is a direction in which the box-shaped cover 4 moves forward and backward toward the one side surface 4a. As shown in the figure, the dead bolt 36 projects to one side from the side surface of the cylinder case 38. In this state, the dead bolt 36 overlaps with the inside of the lever 21 of the crescent lock 6 that is in a posture of engaging the hook piece 11 with the hook piece 11 of the slide receiving seat 8.

As already described with reference to FIG. 6, in order to unlock the crescent lock 6, it is necessary to pull the lever 21 toward the indoor side (front side) and rotate it. The crescent lock 6 cannot be unlocked unless the bolt 36 is retracted. That is, the crescent lock 6 is constrained by the dead bolt 36 in a posture in which the hook piece 11 and the claw piece 22 are engaged with each other. Therefore,
Crescent lock 6 and main lock 35 form a pair of sliding doors 2 and 3
Since it can be locked heavily, it is possible to reliably prevent improper intrusion as in the above.

The main lock 35 described above has a specification in which the dead bolt 36 is linearly advanced and retracted in the axial direction thereof. However, as shown in FIG. 13, when the dead bolt 36 is operated by a key, the dead bolt 39 is in the range of about 90 °. The main lock 40, which is a cylinder lock that swivels at, may be applied. The operation procedure of the main lock 40 will be described below.

First, with the sliding doors 2 and 3 closed, as shown in FIG.
As shown in FIG. 3 (a), the crescent lock 6 is engaged with the hook piece 11 of the slide seat 8 in the same manner as described above. And the main lock 4
By rotating the key inserted into the key hole (not shown) of the inner cylinder of No. 0, as shown in FIG.
9 becomes horizontal and protrudes to one side. In this state,
The dead bolt 39 is a lever 21 of the crescent lock 6 in which the hook piece 11 of the slide seat 8 is engaged with the claw piece 22.
Overlaps with the indoor side of. As a result, the pair of sliding doors 2 and 3 are doubly locked.

When the sliding doors 2 and 3 are opened, FIG.
As shown in FIG. 6, by rotating the key inserted in the keyhole (not shown) of the inner cylinder of the main lock 40 in the opposite direction to the above, the dead bolt 39 moves downward from the state of FIG.
° Turns and returns to the state shown in Figure (a). In this state,
Since the dead bolt 39 is separated from the lever 21 of the crescent lock 6, the crescent lock 6 is operated and unlocked as described above, as shown in FIG. Thereby, the sliding doors 2 and 3 can be opened.

The present invention can be carried out in a mode in which various improvements, modifications and variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. That is, in the above description, the box-shaped covers 4 and 30 are provided on the one sliding door 2 and the slide receiving seat 8 is provided on the other sliding door 3, but, for example, FIG.
When the indoor side and the outdoor side are reversed, the box-shaped covers 4 and 30 may be provided on the door frame 3a of the other sliding door 3, and the slide seat 8 may be provided on the door frame 2a of the one sliding door 2. .

In the above description, the padlock 5,
Crescent tablet 6 or main tablet 13 was applied one by one,
Two or more of these may be applied by enlarging the box-shaped covers 4 and 30. Alternatively, the door frame 2a of one sliding door 2
In addition, two or more box-shaped covers 4 and 30 may be provided, and correspondingly, two or more slide receiving seats 8 may be provided in the door frame 3a of the other sliding door 3.

[0065]

According to the lock of the sliding door of the present invention, since the double lock can be performed as described above, the crescent lock can be obtained by breaking the window glass or the like to make a hole and then inserting the finger into the room. Even if the key is operated to unlock it, the sliding door cannot be opened, and the building cannot be illegally invaded. Also,
Even if the pair of sliding doors are slightly open, the pair of sliding doors can be locked.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view showing a state in which locking metal fittings for a sliding door according to a first embodiment of the present invention are provided in a set of sliding doors.

FIG. 2 is a side view of the main part of the locking fitting for the sliding door according to the first embodiment of the present invention.

FIG. 3A is a perspective view of a ride seat applied to the locking metal fitting of the sliding door according to the first embodiment of the present invention, and FIG. 3B is a perspective view of a box-shaped cover thereof.

FIG. 4 is a side view of a main part of a lock fitting of a sliding door according to a second embodiment of the present invention.

FIG. 5A is a perspective view of a modified example of the box-shaped cover applied to the locking metal fitting of the sliding door according to the first and second embodiments of the present invention, and FIG. 5B is a modified example of the slide seat thereof. Perspective view.

FIG. 6 is an operation explanatory view seen through a crescent lock applied to the locking fitting of the sliding door according to the first to fourth embodiments of the present invention.

FIG. 7 is a perspective view showing a state in which a locking metal fitting for a sliding door according to a third embodiment of the present invention is provided in a pair of sliding doors.

FIG. 8A is a front view of a slide seat applied to a locking metal fitting of a sliding door according to a third and a fourth embodiments of the present invention,
(B) is the perspective view.

FIG. 9 is a front view of a modified example of a slide seat that is applied to a locking metal fitting for a sliding door according to third and fourth embodiments of the present invention.

FIG. 10A is a front view of another modification of the slide seat applied to the locking metal fitting of the sliding door according to the third and fourth embodiments of the present invention, and FIG. 10B is a perspective view thereof.

FIG. 11 (a) is a perspective view of still another modification of the slide seat applied to the locking metal fitting of the sliding door according to the third and fourth embodiments of the present invention, and FIG. 11 (b) shows its usage example. Front view.

FIG. 12 is a front view showing a state in which locking metal fittings for a sliding door according to a fourth embodiment of the present invention are provided in a set of sliding doors.

FIG. 13 is a motion explanatory view of the locking fitting of the sliding door according to the fourth embodiment of the present invention when viewed from the front.

[Explanation of symbols]

1: Locking metal for sliding door 2: Sliding door 3: Sliding door 4: Box cover 5: Padlock 6: Crescent tablets 7: slit 8: Slide seat 9: Oscillating piece 10: Receiving hole 11: Hook piece 12: Hanger 13, 35, 40: Main lock 14: Key 15, 36, 39: Dead bolt 20: Body housing 21: Lever 21a: Axis 22: Nail piece 23: Tumbler 26: Lock claw 27: Thin lever

Claims (10)

[Claims] 1. A lock fitting provided on a pair of sliding doors, which is fixed to one of the sliding doors and has a box-shaped cover whose inside is open, and a padlock which can be stored inside the box-shaped cover. A crescent lock provided inside the box-shaped cover, and a slide seat that is fixed to the other of the pair of sliding doors and moves forward and backward through the box-shaped cover through a slit formed in the box-shaped cover. , With the set of sliding doors open, the slide seats are pulled out from the box-shaped cover, and in the state of closing the set of sliding doors, the slide seats are inserted into the box-shaped cover, A locking metal fitting for a sliding door, wherein the padlock is locked by locking it in a receiving hole formed in the slide receiving seat, and the crescent lock is engaged with a hook piece formed in the slide receiving seat. 2. The locking metal fitting for a sliding door according to claim 1, wherein the box-shaped cover has a hanger for suspending the padlock provided above the receiving hole of the slide receiving seat inside the box-shaped cover. 3. A lock fitting provided on a pair of sliding doors, which is fixed to one of the sliding doors and has a box-shaped cover whose inside is open, and is fixed to one side surface inside the box-shaped cover. A crescent lock, a main lock fixed to the other side inside the box cover and having a dead bolt that can be operated with a key, and a slit fixed to the other of the pair of sliding doors formed in the box cover. After that, a slide seat that moves back and forth in and out of the box cover is provided, with the pair of sliding doors open, the slide seat coming out of the box cover, and with the pair of sliding doors closed. The slide seat is inserted into the box-shaped cover, the dead bolt of the main lock is coupled to the receiving hole formed in the slide seat, and the crescent lock is formed on the slide seat. Can engage Locking bracket of the sliding door according to claim. 4. The dead bolt enters the receiving hole of the slide receiving seat by pushing the key inserted into the key hole of the inner cylinder of the main lock into the inner cylinder, and the key is locked. The locking metal fitting for the sliding door according to claim 3, wherein the dead bolt rotates together with the inner cylinder by rotating, and a male screw formed at a tip of the dead bolt is screwed into a receiving hole of the slide receiving seat. 5. The locking of the sliding door according to claim 1, wherein the slide seat has a swing piece suspended from the inside of the slide through a hinge, and the swing hole has the receiving hole. Metal fittings. 6. The lock fitting for a sliding door according to claim 1, wherein the slide seat has a plurality of the receiving hole and the hook piece formed at predetermined intervals in a direction in which the sliding door is opened and closed. . 7. A lock fitting provided on a pair of sliding doors, the box cover being fixed to one of the sliding doors and open to the inside, and the box cover being openable and closable to the inside. A protective door provided, a door lock for locking or unlocking the protective door, and a crescent lock provided inside the box-shaped cover,
A slide seat that is fixed to the other of the pair of sliding doors and moves back and forth in and out of the box-shaped cover through a slit formed in the box-shaped cover, and in a state in which the pair of sliding doors is opened, With the slide receiving part coming out of the box type cover and the pair of sliding doors closed, the slide receiving part enters the box type cover, and the crescent lock is formed on the slide receiving part. A locking metal fitting for a sliding door, characterized in that the locking door is locked by engaging with the door and closing the defense door. 8. A lock fitting provided on a pair of sliding doors, which is fixed to one of the sliding doors and has a box-shaped cover whose inside is open, and is fixed to one side surface inside the box-shaped cover. A crescent lock, a main lock fixed to the other side inside the box cover and having a dead bolt that can be operated with a key, and a slit fixed to the other of the pair of sliding doors formed in the box cover. After that, a slide seat that moves back and forth in and out of the box cover is provided, with the pair of sliding doors open, the slide seat coming out of the box cover, and with the pair of sliding doors closed. Entering the slide seat into the box-shaped cover, engaging the crescent lock with a hook formed on the slide seat, and rotating a key inserted into a keyhole of an inner cylinder of the main lock. The dead DOO is, protrudes to the one side toward, the crescent lock, locking bracket of a sliding door that said pawls, characterized in that the restraining a posture engaged with the hook piece. 9. The locking metal fitting for a sliding door according to claim 7, wherein the slide seat is made of a block body in which the hook piece is formed. 10. The crescent lock forms an arcuate pawl piece engageable with the hook piece around a pivot of a lever provided on the outer surface of the main body housing, and the pivot is pivoted to pivot the pawl. When the piece engages with the hook piece, the tumbler coupled to the pivot in the main body housing is locked by the lock claw that is spring-biased so as to abut against the tumbler, thereby rotating the pivot. Movement is blocked, and a thin lever extending outside the main body housing is joined to the lock claw, and the thin lever is pushed back against the spring bias to separate the lock claw from the tumbler. The locking metal fitting for the sliding door according to any one of claims 1 to 9, wherein: