JPH0512452Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for a sliding door that is incorporated into an opening in a building.

Generally, sliding doors installed in building openings undergo vertical and height adjustments to properly close and lock the doors relative to the opening. As a result of these adjustments, the relative positions of the locking body and its catch change left and right or up and down, so that the relative positions of the locking body and its catch must be adjusted to ensure reliable locking and unlocking. Conventionally, this relative position adjustment has been performed by changing the installation position of the catch left and right or up and down.

However, changing the mounting position of the receiver requires removing the sliding door, which is very troublesome.Moreover, once the sliding door is removed, the relative orientation of the locking body and the receiver cannot be determined, making it difficult to accurately Since it is not possible to check the exact amount of adjustment, the sliding door may need to be removed and installed frequently, which is a problem that involves complicated and inefficient work.

Therefore, in view of the above-mentioned conventional problems, the present invention has been developed to solve the problem even if the relative position of the locking body and the receiver changes in the left and right lateral directions as the sliding door is adjusted vertically or in height. , the locking body can be moved from side to side without removing the sliding door, and the horizontal engagement position of the locking body and its receiver can be easily and easily adjusted;
In addition, even if the relative position of the locking body and the receiver changes in the vertical direction, there is no need to adjust the relative position of the two at all, eliminating the conventional complicated adjustment work, and making the overall structure more compact. With the aim of providing a locking device that can be assembled together, we have devised a unique structure.

That is, the present invention provides a locking device comprising a swingable locking body having a hook-shaped engaging portion at its tip and a receiver having a receiving piece for engaging the engaging portion, in which the locking body is incorporated into a lock holder. , the lock holder is built into the lock box so as to be movable in the opening/closing direction of the sliding door, and the lock body is moved in and out of the lock box by locking/unlocking, and a swinging arm of the lock body is provided on one side of the receiving piece. A first opening through which the locking body enters and exits, and a second opening on the lower side that communicates with the first opening through which the swinging arm and the engaging portion go in and out are provided, and the locking body swings when the locking body rotates and locks. The arm passes through the first opening and engages the receiving piece at a position where the engaging part crosses a horizontal line passing through the rotation center of the locking body, and the engagement position with the engaging part of this locking body and the tip of the receiving piece on the horizontal line side It is characterized by providing an adjustment engagement allowance between the part and the part.

Embodiments of the present invention will be specifically described below with reference to the drawings.

The locking device comprises an outer box 1 and an inner box 2, the dimensions of the inner box 2 in the sliding door opening/closing direction are smaller than those of the outer box 1;
The inner box 2 is movable relative to the outer box 1 in the opening/closing direction of the sliding door. The outer box 1 is a lock box of a conventionally commonly used type, and the inner box 2 is an example of one used as a lock holder for holding a lock body 3.

In order to move the inner box 2 smoothly, guide members 4 and 5 are installed in the upper and lower parts of the inner box (FIG. 3). The guide member 4 is approximately U-shaped when viewed from the side, and has a guide portion 7 through which the guide pin 6 is inserted.
, a female threaded portion 9 that engages with the adjustment screw 8, and an engaging portion 11 that engages with the trigger latch 10 (Fig. 3). The lid 14 is caulked to connect the lid to the inner box (Fig. 4). The guide pin 6 is passed through the guide part 7, the side wall 13 of the inner box, and the lid 14, and both ends of the guide pin 6 are caulked to the side wall 15 of the outer box and the lid 16 to connect them to each other and to secure the inner box 2. It is designed to be movable along guide pins 6 relative to the outer box 1 (FIG. 4). The female threaded portion 9 is provided with a screw hole 17 in the opening/closing direction, and a through hole is provided in the side wall 13 and the lid 14 of the inner box 2 to correspond to the screw hole 17, and is screwed into the screw hole 17. The adjustment screw 8 is inserted through the through hole, and its shaft end is rotatably coupled to the side wall 15 of the outer case 1, with the screw head exposed from the lid 16. Therefore, by rotating the adjusting screw 8, the inner box 2 can be moved relative to the outer box 1.

The lower guide member 5 is a rectangular parallelepiped, and the projections 18 are caulked to the side wall 13 and lid 14 of the inner box to connect them to each other (FIGS. 3 and 4). A guide pin 19 is passed through holes provided in the guide member 5, the side wall 13 of the inner box, and the lid 14, and both ends of the pin are connected to the side wall 15 of the outer box and the lid 16.
It is crimped (Figures 3 and 4). As a result, both the lower and upper parts of the inner box 2 can be moved along the guide pins 19 in the direction of opening and closing the sliding door.

A rotating shaft 20 for rotating the locking body 3 passes through the inner box 2 and is rotatably attached at both ends to the side wall 15 and the lid 16 of the outer box 1. Inner box 2 along rotation axis 20
However, it can be moved in the direction of opening and closing the sliding door. (Figure 4). The rotating shaft 20 has a semicircular portion 21 with a large diameter and a semicircular portion 21′ with a small diameter,
Step portions 23 and 24 are formed at the connecting portion of both parts (FIGS. 3 and 6).

The locking body 3 includes a fitting hole 25 with the rotating shaft 20, a swinging arm 26, and an engaging part 28 with the receiver 27,
In particular, the arm 26 has a tip portion 26a bent into a hook shape in the locking rotation direction, and the engaging portion 28 is provided on the side surface of the hook-shaped tip portion 26a. This engaging part 2
8 is a roller for smooth engagement with the receiver 27, and is positioned above the horizontal line (-) passing through the center of the rotating shaft 20 in the rotational position where the lock body 3 is in the locked state. It's getting old.

The receiver 27 is provided with a receiving piece 27b that is protruded toward the outdoor side in the center of a vertically long rectangular mounting seat 27a, and has a first receiving piece 27b on one side of which the arm 26 of the locking body 3 enters and exits. Opening 27
c and the lower side of the receiving piece 27b, the swinging arm 26 communicates with the opening 27c and a second
As shown in FIG. 1, the engaging position of the engaging part 28 and the receiving piece 27b in the locked position is aligned with the horizontal line (-) passing through the center of rotation of the locking body 3. It is attached to the joining stile 31 of the outdoor sliding door 30 so as to cross over the door.

There is a sliding door 3 between the position where the engaging portion 28 engages with the receiving piece 27b and the lower end side of the receiving piece 27b.
In order to absorb the hanging position that changes depending on the height of 0.32 or installation adjustment, the hanging allowance a for adjustment is
However, as shown in FIG.
It is larger than the dimension b for attaching and detaching the sliding doors 30 and 32 provided between 0 and 32. As a result, even if the sliding door is adjusted by the dimension b, the engaging portion 28 can maintain the engaged state with the receiving piece 27b and perform the locking function.

Note that the locking body 3 is held in the inner box 2 by being fitted onto the rotating shaft 20 within the inner box 2.
In this state, the locking body 3 has approximately 70 degrees of play with respect to its rotating shaft 20, and is in a relationship where it rotates approximately 100 degrees as the rotating shaft 20 rotates approximately 170 degrees, and the lever handle 34 is used. In this case, the handle faces downward and upward in its locked and unlocked positions, and does not face sideways, so it does not get in the way.

The locking body 3 is indirectly fitted to the rotating shaft 20 via the intermediate member 35 as follows. Intermediate member 3
5 has a cylindrical part 36, a flange part 37 formed on the end surface thereof, and an arm part 38 extending radially from a part of the flange part 36, and the inner peripheral surface of the cylindrical part 36 has a large diameter arc part 39 of 250 degrees. and a circular arc portion 39' with a small diameter of 110 degrees, and there is a stepped portion 40 at the connecting portion thereof (FIG. 6). When this intermediate member 35 is fitted to the rotating shaft 20, the large-diameter arc portions 39 and 21 of both come into contact with each other and can rotate relative to each other, and the small-diameter arc portion 3
9', 21' are engaged with each other, and the stepped portions 23, 24 and 4
There is a play of 70 degrees between 0 and 70 degrees, and the rotation of the rotating shaft 20 is transmitted to the intermediate member 35 by engagement of the stepped portions. The hole 25 of the arm 26 of the locking body 3 is fitted to the outer periphery of the cylindrical portion 36, and the hole 41 of the arm 26 is inserted into the protrusion 42 of the arm portion 38.
The lock body 3 and the intermediate member 35 are coupled so as to rotate integrally. Of course, the hole 25 of the arm 26 may be formed in the same manner as the hole of the intermediate member 35, and the arm 26 may be directly fitted onto the rotating shaft 20, or the play may be omitted and the arm 26 may be fixed.

The rotor 43 works together with the trigger latch 10 to lock the rotating shaft 20 in the unlocked position. This rotor 43 is disc-shaped and has a hole 45 in the center formed by a large-diameter semicircular part 44 and a small-diameter semicircular part 44', and a trigger latch 10 on the outer periphery.
A hooking portion 47 is formed to engage with the hooking portion 46 of. When the hole 45 of the rotor 43 is fitted into the rotating shaft 20, the large-diameter circular arc portions 44, 21 and the small-diameter circular arc portions 44', 21' of both come into contact with each other and are integrally coupled. Figure 6).

Trigger latch 10 includes a body 48 and a head 49. The main body 48 has two approximately L-shaped plate portions 50.
One side faces each other and is connected at the back part 51 (Fig. 6), and the sliding door is opened along the guide surface 52 provided on the lower surface of the guide part 7 with the engaging part 11 of the guide member 4 sandwiched therebetween. It is held in the inner box 2 so as to be slidable in the direction. The main body 48 and the head 49 have a pin 5 passing through them.
3, and both ends of the pin are slidably fitted into horizontally elongated holes 54 in the inner box 2. Trigger latch 10 is slidable within hole 54 and
To allow movement of the trigger latch 10,
Openings 1 are provided on the interior wall of outer box 1 and the interior wall of inner box 2.
a, 2a are formed. A hook-shaped engaging part 46 is formed at the lower end of the main body 48, and the engaging part 46 engages with the engaging part 47 of the rotor 43 located on the indoor side when the locking body 3 is in the retracted state. Prevent protrusion.

A compression coil spring 55 inserted into the hole 11a provided in the engaging portion 11 of the guide member 4 is provided between the rear end of the head 49 and the guide member 4, and the spring causes the main body 48 of the trigger latch 10 to move into the chamber. It is biased outward (leftward in the figure). Therefore, when the door is open (second
), the head 49 protrudes from the armour plate 56,
The engaging portion 46 of the main body 48 that has moved toward the outside engages with the engaging portion 47 of the rotor 43 to hold the locking body 3 in the retracted position. Also, when the door is closed (first
As a result of the head 49 being pushed in by the sliding door 30,
The engaging portion 46 of the main body 48 that has moved toward the indoor side is disengaged from the engaging portion 47 of the rotor 43, allowing the locking body 3 to be rotated to the protruding position.

However, by adjusting the installation of sliding doors 30 and 32,
If the positions of the locking body 3 and the receiver 27 do not face each other, and the locking body 3 does not properly engage with the receiver 27 due to deviation in the opening/closing direction of the sliding doors 30, 32, the alignment of the indoor sliding door 32 may be delayed. By turning the adjustment screw 8 using a tool such as a screwdriver inserted from the side and sliding the inner box 2 within the outer box 1 in the direction of opening and closing the sliding door,
Adjust the locking body 3 to a position facing the receiver 27.

As described above, the present invention includes a lock box 1 fixed to a sliding door, a lock holder 2 built into the lock box so as to be movable in the opening/closing direction of the sliding door, and a locking or unlocking operation for the lock holder. The locking body 3 is built in so as to come out and disappear from the lockbox, and the receiver 27 is provided on another sliding door, frame, etc. and engages with the locking body. Lock body 3 and receiver 2
Since the lock body 3 is configured to adjust the engagement position with the receiver 27, with the sliding door assembled in the opening, the lock body 3 can be moved relative to the receiver 27.
The engagement position between the two can be adjusted without changing the mounting position of 7, and this adjustment work is simple and easy. The present invention further provides that the locking body 3 has a swinging arm 26 and a hooking portion 28 erected on the side surface of the hooked tip thereof, and the receiving member 27
The receiving piece 27b has a first opening 27c on one side through which the swinging arm 26 of the locking body enters and exits, and a swinging arm communicating with the first opening 27c on the lower side. A second opening 27d through which the movable arm 26 and the engaging portion 28 go in and out is provided, and when the locking body 3 is rotated and locked, the swinging arm 26 passes through the first opening 27c and the engaging portion 28 closes the locking body 3. It engages with the receiving piece 27b at a position beyond the horizontal line passing through the center of rotation of the locking body, and an adjustment engaging allowance a is provided between the engaging position with the engaging part 28 of this locking body and the tip of the receiving piece 27b on the horizontal line side. Since the first opening 27c of the receiver and the swinging arm 26 of the locking body can move vertically relative to each other in the fitted state, the vertical dimension of the receiver 27 and the locking body are Even if the size of the hook-shaped portion at the tip of the swinging arm 26 can be shortened, and even if the receiving piece 27b is lengthened to provide a large adjustment engagement allowance a, the size of the hook-shaped portion at the tip of the swinging arm 26 of the locking body can be reduced. There is no need to make the hook-shaped portion long, and in any case, the entire locking device can be made compact.

In particular, the three-panel sliding doors 30, 32 shown in Figure 8,
32, the present invention is extremely useful in cases where the position of the receiver 27 cannot be adjusted because the finding surface 57 of the matching stile 31 to which the receiver 27 is attached is not exposed to the indoor A side.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 to 3 are cross-sectional views showing the operating state, and FIG.
A line sectional view, FIG. 5 is a - line sectional view of FIG. 1,
FIG. 6 is an exploded perspective view, FIG. 7 is an assembled vertical sectional view of the sliding door, and FIG. 8 is an assembled horizontal sectional view of the sliding door. In the figure, 1 is an outer box used as a lock box, 2 is an inner box used as a lock holder, 3 is a locking body, 4 and 5 are guide members, 6 is a guide pin, 8 is an adjustment screw, 1
0 is a trigger latch, 17 is a screw hole, 19 is a guide pin, 20 is a rotating shaft, 26 is a swinging arm, 27 is a receiver, 27b is a receiving piece, 27c is a first opening, 27
d is the second opening, 28 is the engaging part, 30 and 32 are the sliding doors, 31 is the connecting stile, 33 is the upper frame rail, 34 is the lever handle, 35 is the intermediate member, 43 is the rotor, 46 and 47 are the engaging parts 48 is a main body, 49 is a head, 53 is a pin, 55 is a compression coil spring, 56 is an armour plate, and 57 is a finding surface.

Claims (1)

[Scope of utility model registration request] A lock box 1 fixed to a sliding door, and a lock holder 2 built into the lock box so as to be movable in the opening/closing direction of the sliding door.
and a hooking part 2 erected on the side surface of the hooked tip of the swinging arm, which is swingably incorporated into the lock holder so as to come out and go out of the lock box 1 when the lock is locked or unlocked.
8, and a receiving piece 27b for engaging the engaging portion 28 provided on another sliding door, frame, etc.
When the lock holder 2 is moved relative to the lock box 1, the lock body 3 and the receiving piece 27b are
In addition, in the receiving tool 27, the receiving piece 27b has a first opening 27c on one side through which the swinging arm 26 of the locking body 3 enters and exits, and a first opening 27c on the lower side. A second opening 27d through which the swinging arm 26 and the engaging portion 28 go in and out is provided, and the swinging arm 2
6 passes through the first opening 27c and the engaging part 28 engages with the receiving piece 27b at a position beyond the horizontal line passing through the center of swing of the locking body 3, and the engaging position with the engaging part 28 of this locking body and the horizontal line A locking device for a sliding door in which an adjustment engagement allowance a is provided between the tip of a side receiving piece 27b, and the engagement position in the vertical direction between the locking body and the receiving piece is adjusted by the adjustment allowance.