JPH0450385Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] "Field of industrial application" This invention relates to a locking device that prevents the sliding door from rebounding against the opening frame when the sliding door is closed.

``Prior art'' Conventionally, a locking device is provided on the stile of sliding doors, single-sliding doors, etc., or a locking device such as a sickle lock is provided between the door stile and the vertical frame closed by the door stile. Most sliding doors used in Japan have a locking device between the door frame and the vertical frame. Such sliding doors are particularly suitable for entrances.

``Problem that the invention aims to solve'' In the past, when closing wooden sliding doors, even if you tried to close the sliding door quickly, the running resistance created between the door roller and the rail was large and the sliding door did not accelerate suddenly. Even if you take your hand away from the door to close it, the distance the door will move due to inertia is small. Since the sliding doors used in entrances have been made of aluminum sash, the precision of the rails on the opening frame side has become very good, and along with improvements to the door roller and upper guide means, it has become possible to open and close sliding doors smoothly with light force. It became. However, when an aluminum sash sliding door is closed with force, the sliding door travels at a very high speed, and if the door stop stile of the sliding door collides with the vertical frame of the opening frame, the space between the door stop stile and the opening frame will be damaged. Even if the sliding door is cushioned by an airtight gasket installed in the door, the sliding door may bounce back and move in the opening direction, opening slightly.

The purpose of this invention is to solve the above-mentioned problems with sliding doors by devising a locking device for the sliding doors.

[Structure of the idea]

``Means for solving the problem'' This idea is to attach an arm to the door stop stile of a sliding door, which protrudes toward the vertical frame that is closed by the door stop stile, and has a detent on one side in the vertical direction of the tip. A base is provided by bending in the opposite direction to the detent, a long hole is provided in the base in the vertical direction, and the lock frame is rotatable by a shaft pin in the internal and external directions at the bent part between the arm and the base. A pair of latches attached to the latches are arranged vertically symmetrically with the horizontal line as an axis of symmetry so that the detents face each other, and an operating member is attached to the lock frame in the elongated hole of the latches so as to be movable in the same direction as the moving direction of the sliding door. A spring is provided to apply a spring force in a direction in which the arm portions of the latch approach each other by inserting a rod provided in the inner and outer directions, and the detent of the latch is engaged with the vertical frame that is closed by the door frame. This locking device for a sliding door includes a horizontal frame part with matching upper and lower sides, and a receiver provided with a space above and below the horizontal frame part that allows movement of the arm part of the latch.

"Embodiments" Hereinafter, embodiments of this invention will be described with reference to the drawings.

FIG. 6 is a front view of the sliding doorway seen from the inside. Inside the opening frame 1, there are sliding inner shoji 2,
Outside shoji 3 is built so that it can be opened and closed. Doorstop stile 4 of inner shoji 2 and outer shoji 3 and corresponding doorstop stile 4
A locking device 6 is disposed on each vertical frame 5 that can be closed. The locking device 6 is provided on both the inner shoji 2 and outer shoji 3 sides.
Since they are the same, I will talk about the second side of the inner shoji (hereinafter referred to as the sliding door). Although the single sliding door is not shown, the locking device is the same.

Figure 1 is a front view from the inside, Figure 2 is a front view of the
Figure 3 is a cross-sectional view taken along line A-A in the figure, Figure 3 is a cross-sectional view taken along line B-B in Figure 2, Figure 4 is a cross-sectional view taken along line C-C in Figure 1, and Figure 5 is a cross-sectional view taken along line D-D in Figure 1. be.

A door stop stile 4 of the sliding door 2 is provided with a latch side device, and a vertical frame 5 that is closed by the door stop stile 4 is provided with a receiving part.

The latch 7 protrudes toward the vertical frame 5 that is closed by the door frame 4, and the base side of the arm portion 9, which has a detent 8 on one side in the vertical direction, is bent upward and downward in the opposite direction to the detent 8. A base 11 is provided, and a base 11 is provided.
An L-shaped hole 1 is bent toward the base 11 and the arm 9.
2, and a bent part 13 between the arm part 9 and the base part 11.
As shown in FIG. 4, it is rotatably attached to the middle frame 16 of the lock frame 15 by passing through a shaft pin 14 which extends inward and outward directions and is fitted and fixed into the middle frame 16. The L-shaped hole 12 is made up of an elongated hole 12a in the vertical direction and an arcuate portion 12b centered on the shaft pin 14.

A pair of latches 7 are vertically symmetrically arranged with the horizontal line as the axis of symmetry so that the detents 8 face each other.

The lock frame 15 consists of a middle frame 16 and a handle frame 18.
The door stop frame 4 has a rectangular through hole 4H long in the longitudinal direction in the inner and outer material parts 4I and 4E, and an inner frame 16 that is smaller than the through hole 4H and a rectangular fitting that fits into the through hole 4H. The handle frames 18 having joint portions 18a are brought into contact with each other and are connected from the inside with machine screws 19, respectively, as shown in FIG. It is fastened by machine screws 20 that pass through the frame 16.

The bottom plate 18b of the hand frame 18 is
An operating member 21 is fitted between the inner frame 16 and the inner frame 16 in contact with the sliding door 2 so as to be movable in the same direction as the moving direction of the sliding door 2. Operation member 21 on one side
is provided with a hollow rod portion 17a that passes through the L-shaped hole 12 provided in the base 11 of the latch 7 and the horizontal elongated hole 16a provided in the middle frame 16, and the operating member 21 on the other side is provided with a hollow rod portion 17a. A rod portion 17b that fits into the portion 17a is integrally provided. Operation member 21
A handle-like operating section 23 for driving the operating member 21 is provided.

A spring 24 which applies a spring force in a direction in which the arms 9 of the pair of latches 7 approach each other has both ends hooked on the edges of the pair of arms 9 on the far side from each other.

A receiver 25 is fixed to a vertical frame 5 that is closed with a door frame 4. (Fixation method not shown). The receiver 25 has upper and lower sides 25 where the detent 8 of the latch engages.
Holes 25c are provided above and below the horizontal frame portion 25b and the horizontal frame portion 25b to allow movement of the arm portion 9 of the latch.

As shown in FIGS. 1, 3, and 5, the middle frame 16
A locking fitting 27 is pivotally connected to the fixing pin 26.
is in the shape of a sickle, and an engaging portion 27a corresponding to the blade of the sickle is arranged so as to be able to engage and disengage from the base 11 of the latch. The lock pin 28 embedded in the lock fitting 27 is inserted into the inner frame 1 of the lock frame 15.
6. Fixing pin 26 provided across the handle frame 18
It passes through an arcuate groove 29 centered at and projects inward.

1 to 5 show the locked state, and the arm portions 9 of the latch 7 are located close to each other due to the spring force of the spring 24, and are attached to the upper and lower sides 25a of the horizontal portion 25b of the receiver 25. Detent 8 is engaged. In this state, the corners of the L-shaped holes 12 of the upper and lower latches are connected to the hollow rod part 17a of the operating member 21, and the rod part 1
It is at position 7b. The operating member 21 is in the rightmost position in FIG. 1, and its operating portion 23 is in contact with the end of the bottom plate 18b of the handle frame 18. As shown in FIG. 3, the lock fitting 27 rotates counterclockwise about the pin 26, and is in a position where the engaging portion 27a of the lock fitting and the base portion 11 of the latch are engaged.

In this state, the operation member 21 is
When a force is applied to the operating part 23 so as to move it from the doorstop stile 4 side in a direction away from the vertical frame 5 closed by the doorstop stile 4, the hollow rod part 1 of the operating member
7a is the portion of the L-shaped hole 12 in FIG.
1 to the left, the latch 7 rotates around the shaft pin 14, and as it tries to rotate so as to open the arms 9 of each latch 7, the base 11 tries to displace to the left in Fig. 1. Since it is stopped by the engaging portion 27a of the lock fitting 27, it cannot be unlocked. That is, the sliding door 2 cannot be opened from either the inside or the outside.

When the lock pin 28 is moved clockwise in FIGS. 1 and 3, the lock fitting 27 rotates clockwise about the pin 26, and its engaging portion 27a is disengaged from the base 11 of the latch.

When the operating portion 23 is moved to the left in FIG. 1 with the lock fitting 27 removed, the operating member 21 moves in the same direction, and the hollow rod portions 17a and 17b of the operating member move to the left. Accordingly, the L-shaped hole 12 is allowed to move in the direction along the elongated hole 12a with respect to the hollow rod part 17a and the rod part 17b, so that the base 11 of the latch 7 is moved at the L-shaped hole 12 as shown in FIG. , the arm portion 9 of the pair of latches 7 is pushed to the left.
rotate around the shaft pin 14 so as to move away from each other against the spring force of the spring 24. As a result, the tip of the detent 8 comes off the upper and lower sides 25a of the horizontal frame portion 25b of the receiver.

When the sliding door 2 is opened in this state, the arm portion 9 comes out of the hole 25c of the receiver. During such operation, the spring 24
Since the spring force is applied to resist the displacement of the arm parts 9 in the direction away from each other, the spring force is also applied to the operating part 23. Therefore, when you release your hand from the operating part 23, the latch 7 is moved closer to the shaft pin 1 by the spring force of the spring 24 so that the arm parts 9 approach each other.
4, the base 11 of the latch 7 moves to the right in FIG. The right row of the base 11 creates an L-shaped hole 1.
The hollow rod portion 17a fitted into the rod 2 moves to the right,
In addition, the rod portion 17b also moves to the right, and the operating member 21
is moved to the right, but since the operating portion 23 of the operating member 21 hits the bottom plate 18b of the handle frame 18, the operating member 2
1. Latch 7 is stopped. At this time, the hollow rod part 1
7a, the L-shaped hole 12 moves relative to the rod portion 17b. That is, when the sliding door 2 is open, the arm portions 9 of the latch 7 are at the movement limit positions close to each other.

When the sliding door 2 is closed by moving it to the right in FIG. slides on the upper and lower sides 25a and expands against the spring 24. Latch 7 is shaft pin 1
The arm portions 9 rotate in a direction away from each other around the shaft pin 14, and the base portion 11 rotates around the shaft pin 14 so as to move leftward in FIG. The L-shaped hole 12 moves in the same direction as the base 11, and the arc portion 12b fits into the hollow rod portion 17a. Therefore, when closing the sliding door 2, the operating member 21 is not operated when the latch 7 is moved from the closed state to the open state. The tip 8b of the detent 8 is the horizontal part 2 of the receiver.
5b, the latch 7 rotates around the shaft pin 14 due to the spring force of the spring 24, the arm portions 9 move closer together, and the detent 8 connects with the horizontal portion 25b of the receiver. engage. and the base of the latch 1
The arc portion 12a of the L-shaped hole 1 moves to the right in FIG. 1, and the corner of the L-shaped hole 12 is located at the hollow rod portion 17a as shown in FIG.

Therefore, when the sliding door 2 is forcefully closed, the force of the door stop stile 4 colliding with the vertical frame 5 on the side closed by the door stop stile 4 and rebounding to open the sliding door 2 is generated by the detent 8 and the catch 25. It is stopped by. At that time, the operating member 21
is immovable.

In the above, the arcuate portion 12b of the L-shaped hole at the base of the latch may be omitted and only the elongated hole portion 12a may be used. In this case, the operating member is moved by the latch when closing the sliding door.

[Effect of idea]

Since this invention is as described above, even if the sliding door is forcefully closed against the vertical frame that is closed by the door stop stile, the door stop stile will hit the vertical frame and be repelled and open. Prevented. Further, since it functions as a locking device while having the above-mentioned functions, there is no need to provide any other locking device.

[Brief explanation of the drawing]

The drawings all show embodiments of this invention; Fig. 1 is a front view seen from the inside, and Fig. 2 is a view taken from A--A in Fig. 1.
A sectional view, Fig. 3 is a BB sectional view of Fig. 2, Fig. 4
The figure is a sectional view taken along line C-C in figure 1, and figure 5 is a cross-sectional view taken along line D in figure 1.
-D sectional view and FIG. 6 are front views seen from the inside of the sliding door sash. 1...Opening frame, 2...Inner shoji, 3...Outer shoji,
4... Door stop stile, 4H... Through hole, 4I, 4E...
... Inner and outer material parts, 5 ... Vertical frame, 6 ... Locking device, 7
... Latch, 8 ... Detent, 8a ... Oblique part, 9
... Arm part, 11 ... Base, 12 ... L-shaped hole,
12a...Long hole part, 12b...Circular arc part, 13...
Bent part, 14... Axis pin, 15... Lock frame, 16...
... Middle frame, 16a ... Long hole, 17a ... Hollow rod part, 17b ... Rod part, 18 ... Hand frame, 1
8a... Square fitting part, 18b... Bottom plate, 19,2
0... Machine screw, 21... Operating member, 23... Operating portion, 24... Spring, 25... Receiver, 25a... Top and bottom sides, 25b... Horizontal frame, 25c... Hole, 26...
...Fixing pin, 27...Lock fitting, 27a...Engaging portion, 28...Lock pin, 29...Circular groove.

Claims (1)

[Scope of utility model registration request] The arm protrudes from the door stop stile of a sliding door toward the vertical frame that is closed by the door stop stile, and has a detent on one side in the vertical direction at the tip.The base side of the arm is bent in the vertical direction in the opposite direction to the detent. A base is provided, a long hole is provided in the base in the vertical direction, and the latch, which is rotatably attached to the lock frame by a pivot pin extending in the internal and external directions, is attached to the bent part between the arm part and the base, and the latch is attached to the horizontal line so that the detents face each other. A pair of rods are arranged vertically symmetrically with the axis of symmetry being the axis of symmetry, and a rod extending in the internal and external directions provided on the operating member that is attached to the lock frame so as to be movable in the same direction as the moving direction of the sliding door is inserted into the elongated hole of the latch. a horizontal frame section having upper and lower sides on which the detents of the latch engage with a vertical frame that is closed with a door stop stile; A locking device for a sliding door equipped with a receiver that has a space above and below a horizontal frame part to allow movement of the arm part of the latch.