JP2587794B2 - Locking device for horizontal sliding doors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a horizontal sliding door.

[0002]

2. Description of the Related Art Conventionally, as a locking device for a horizontal sliding door, a locking portion which is interlocked with a lever handle is locked by receiving and locking the locking portion. It is known that a lock piece is automatically engaged with a part to lock a shoji (Japanese Utility Model Publication No. 53-53).
No. 30558, Japanese Utility Model Application Laid-Open No. 51-49399), and the above-mentioned lock piece is also locked by a stopper operated by an operating means such as a cylinder lock (Japanese Utility Model Application Laid-Open No. 58-8).
No. 6865, Jitsuho 2-39011).

[0003]

In the above-mentioned conventional locking device, the one that automatically locks the engaging portion linked to the handle with a lock piece is convenient in terms of automatic locking.
On the other hand, since the engaging portion is always locked with the lock piece, the lock piece must be removed from the engaging portion with a finger when removing the engaging portion from the receiving portion, which is troublesome.

[0004] In view of the above, the present invention can automatically lock the engaging portion engaged with the lever handle with the lock piece, or can engage the engaging portion with the engaging receiver independently of the lock piece. It is intended to provide a convenient locking device.

[0005]

According to the present invention, in order to achieve the above object, a lock piece is automatically spring-loaded from an unlocking position of a first stage to an engaging portion which engages with a lever in conjunction with a lever handle. The locking piece is held by the claw and the claw receiver at the second unlocking position where the locking piece is not locked with the locking piece against the force of the spring.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a first locking means for locking a horizontal sliding door, a second locking means for locking the locking means, and a second locking means for locking the locking means.
A third locking means for locking the locking means and a means for holding the second locking means in an unlocked state are provided.

The first locking means comprises a locking member (1) and a receiving member (2). As the locking member (1), a pedestal (3) is fixed to a mating frame (5) of an outer shoji (4) (FIG. 3), and a lever handle (6) is attached to the pedestal (3) by a pivot (7). ). A rotating arm (8) is connected to the pivot (7) and is linked with the lever handle (6). The rotating arm (8) is provided at its tip with a hook (9) for locking a shoji. As the receiving member (2), another pedestal (10) is fixed to the mating frame (12) of the inner shoji (11) (FIG. 3), and the pedestal (10) is engaged with the engaging portion (9). A hook (13) for locking the sliding door is provided.

When the lever handle (6) is directed upward as indicated by a two-dot chain line in FIG. 1, the rotary arm (8) is also directed upward, and the engaging portion (9) at the tip of the rotary arm (8) is turned upward. It is released from the hook receiving part (13) and the shoji is unlocked. When the handle (6) is rotated clockwise by about 150 degrees from the upper direction to the lower right position shown by the solid line, the rotating arm (8)
Is rotated about 90 degrees in the same direction, and the engaging portion (9) at the tip thereof engages with the engaging receiver (13) to lock the shoji. At the same time as this locking, the cam screen (14) of the engaging receiver (13) draws the shoji (4) and (11) together, and the airtight piece (1) therebetween.
It becomes airtight in 5). When the handle (6) is rotated counterclockwise from the right-down position to the upward position, the rotating arm (8) also rotates in the same direction, and the engaging portion (9) at the tip of the rotating arm (8) moves from the engaging receiver (13). The sliding door is unlocked.

The angle of rotation between the lever handle (6) and the rotary arm (8) has a play of approximately 60 degrees, and the handle (6) is directed downward and out of the way in the locked position. The engaging portion (9) has a shaft (16) standing upright on the rotating arm (8).
A roller (17) is rotatably fitted to (16) (FIG. 5), so that the engagement between the engagement portion (9) and the engagement receiver (13) and the release thereof are reduced. The pedestals (3) and (10) can be fixed to the vertical frame (not shown) of the window frame in addition to the sliding frames (5) and (12) of the shoji. The engaging portion (9) may be provided directly on the handle (6) (not shown), and the rotating arm (8) may be omitted.

The second locking means comprises a lock piece (18) and a spring (19). The lock piece (18) has a lower end pivotally connected to the pedestal (10) with a shaft (20), and a recess (21) for a finger hook formed at the upper end. The spring (19) is a torsion coil spring, the winding part (22) of which is fitted on the shaft (20) (FIG. 5), and both ends (23), (23).
(24) is engaged with the wall (25) of the lock piece (18) and the projecting spring support (26) of the pedestal (10). The spring (19) constantly applies a rotational force in the counterclockwise direction (locking direction) with the lock piece (18) around the axis (20). One side of the lock piece (18) (the surface facing the pedestal 3 side) is a slope (2
7) and a 1 / 4-arc surface connected to the lower end of this slope (28)
And a vertical surface (29) connected to the lower end of this surface.

When the lock piece (18) is oriented vertically (FIGS. 1, 5, and 6), its arcuate surface (28) engages with the engaging portion (9) of the rotating arm (8). The locking part is locked at the locking position. The engagement between the engagement portion (9) and the lock piece (18) is held by the force of the spring (19). When the lock piece (18) is put on a finger recess (21) with a finger and rotated in a clockwise direction (unlocking direction) around a shaft (20) against a spring (19), an arcuate surface (28) is formed. Is disengaged from the engaging portion (9), and the locking of the lock piece (18) with respect to the engaging portion (9) is released.

When the engaging portion (9) of the rotating arm (8) is rotated clockwise from the unlocked position (upward) to the locked position (lateral direction), the engaging portion (9) is engaged with the lock piece (18). Slope (2
7) Rotate the lock piece (18) clockwise around the axis (20) while sliding downward on the upper side (FIG. 7). At the same time that the engaging portion (9) reaches the arcuate surface (28), the lock piece (18) is pivoted by the spring (19).
(20) It is rotated counterclockwise to automatically engage the arcuate surface (28) with the engaging portion (9) (FIG. 1).

The third locking means includes a stopper (30), a receiver (31) engaged with the stopper, and a stopper (30).
(31) is constituted by an operation means to be hooked or removed from the receiver. The stopper (30) is incorporated in the lock piece (18), linearly reciprocates in the longitudinal direction above and below the lock piece (18), and the lower surface thereof is supported by the back lid (32) (FIG. 4).
The back lid (32) is fixed to the lock piece (18) by protrusions (33) and (34) (FIG. 5). The receiver (31) stands upright on the pedestal (10) (FIG. 4) and is located above the stopper (30) (FIG. 1). In FIG. 5, the stopper (30) is raised, and the engaging portion (35) at the tip of the stopper (30) engages with the receiver (31), and the lock piece (18)
Is locked. In FIG. 6, the stopper (30) is lowered and its engaging portion (35) is disengaged from the receiving (31), and the lock piece (1) is released.
The lock on 8) has been released. The receiver (31) also serves to stop the locking piece (18) against the spring (19) in the locking position in addition to the locking means. A cylinder lock (36) is attached to the lock piece (18) as an operating means, and a rotating pin (37) at one end thereof.
Are fitted into the elongated holes (38) of the stopper (30) (FIG. 5). When the cylinder lock (36) is rotated by the key (39), the stopper (30) reciprocates in the vertical direction through the pin (37) and the hole (38) as described above. Take the position of locking and unlocking.

Instead of the cylinder-lock (36), a rotary knob or a slide-type knob can be attached to the lock piece (18) and used as an operating means (not shown).

The means for holding the lock piece (18) of the second locking means in the unlocking position includes a pawl (40), a pawl receiver (41), and a torsion coil spring.
(42). The claw (40) has its center pivotally connected to the pedestal (10) by an axis (43) and is located above the receiver (31). The winding part of the torsion coil spring (42) is fitted to the shaft (43),
One end (44) is engaged with the claw (40), and the other end (45) is engaged with the receiver (31). Accordingly, the spring (42) urges the pawl (40) clockwise (in a direction engaging with the pawl receiver 41), and when the pawl (40) is not engaged with the pawl receiver (41), the spring (42) is located behind the pawl (40). End (46)
Comes into contact with the receiver (31) and causes the claw (40) to wait at its engagement position. The claw receiver (41) is integrally provided on the inner surface of the wall (47) on the free end side of the lock piece (18).

When the lock piece (18) is in the locked position where it engages with the engaging portion (9) (FIGS. 5 and 6), the claw receiver (41)
Is located to the left of the nail (40). When the lock piece (18) is pushed into the unlocking position (FIG. 7) of the first stage at the engaging portion (9), the claw receiver (41) stays at a position (FIG. 7) which does not exceed the claw (40). At the same time that the part (9) engages with the engagement receiver (13), the locking piece (18) is moved to its locking position (FIG. 6) by the spring (19).
To return in the counterclockwise direction. When the lock piece (18) is rotated clockwise with a finger from the locked position (FIG. 6) to the unlocked position (FIG. 7), the claw receiver (41) hits the claw (40) and the position ( When the finger is released from the lock piece (18) after being stopped in FIG. 7), the lock returns to the locked position in the counterclockwise direction. Thus, when the lock piece (18) is within the range of the unlock position in the first stage, the lock piece (18) can be automatically locked.

When the lock piece (18) is rotated clockwise to the second unlocking position (FIG. 8) with a finger, the claw receiver (41) is moved to the claw (4).
Pass over this claw while pressing down 0). Then, when the finger is released from the lock piece (18), the lock piece (18) rotates in the locking position direction (counterclockwise) by the force of the spring (19), and the claw (40) engages with the claw receiver (41). Then, the lock piece (18) is stopped at that position (FIG. 8). In this state, the lock piece (18) does not perform the lock function, and the engaging portion (9) can be freely engaged with the engaging receiver (13) or can be detached from the engaging receiver (13).

[0018]

According to the present invention, as described above, the locking piece (18) is engaged with the catch (13) in conjunction with the lever handle (6) from the unlocking position in the first stage. The claw (40) is automatically locked by the spring (19), or the pawl (40) is in the second stage unlocking position where the lock piece (18) does not engage the lock piece (18) against the force of the spring (19).
And the claw receiver (41), the automatic locking and unlocking of the engaging portion (9) can be properly used.

[Brief description of the drawings]

FIG. 1 is a front view of a locking device according to the present invention.

FIG. 2 is a side view of the locking device of FIG.

FIG. 3 is a plan view of the locking device of FIG. 1;

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a sectional view taken along the line BB of FIG. 4, in which a lock piece is locked.

FIG. 6 is a sectional view similar to FIG. 5, with the locking piece unlocked.

FIG. 7 is a cross-sectional view similar to FIG.
Takes the stage unlocking position.

FIG. 8 is a cross-sectional view similar to FIG.
Takes the stage position.

[Description of Signs] 1 Locking side member 2 Receiving side member 3 Pedestal 6
Lever handle 7 Axis 8 Rotating arm 9 Engagement part 10 Base 13 Engagement receiver 18 Lock piece
19 Spring 20 Shaft 30 Stopper-31
36 Cylinder lock 39 Key 40 Claw 41 Claw receiver 42 Spring 43 Shaft

Claims (5)

(57) [Claims] 1. A pedestal (3) fixed to a shoji or a window frame.
And a lever handle (6) pivotally attached to the pedestal by a pivot (7); )
And a pedestal (10) fixed to the shoji or window frame, and a receiving member (13) provided on the pedestal and engaged with the engaging portion (9) to lock the horizontal sliding shoji. And a lock piece (18) pivotally attached to the pedestal (10) by a shaft (20) to engage with the engaging portion (9) and to lock the engaging portion. A spring (19) for constantly urging the lock piece in the direction of its locking position, and a stopper incorporated in the lock piece (18) to lock the lock piece.
(30) and the stopper (30) provided on the base (10)
Hook that locks the lock piece (18)
(31), locking means for a lock piece constituted by operating means for reciprocating the stopper (30) with respect to the engaging receiver (31), and a pivot (43) to the pedestal (10) with a pin (43). And a claw (40) which is constantly urged in a hooking direction by a spring (42) to hold the unlocking position of the lock piece (18), and a claw (40) provided on the lock piece (18). A lock piece unlocking position holding means constituted by a claw receiver (41) which engages to hold the unlocking position of the lock piece (18) is provided, and the lock piece (18) rotates the locking portion (9). The lock piece (18) is rotated by the spring (19) at the same time as reaching the first stage unlocking position from the locking position toward the first stage unlocking position against the spring (19). It returns to the position and automatically engages with the engaging portion (9). In this engagement, the claw (40) does not engage with the claw receiver (41) of the lock piece (18), and the lock piece (1) is not engaged.
8) Automatic return to the locking position direction is possible,
By rotating (18) to the second stage unlock position beyond the first stage unlock position where it can be automatically returned by hand,
0) is engaged with the claw receiver (41), and holds the lock piece (18) at the unlocking position at that stage. 2. A locking part (9) for locking the horizontal sliding door is provided on a rotating arm (8) connected to a pivot (7) of a lever handle (6) and linked to the lever handle. Item 6. A locking device for a horizontal sliding door according to Item 1. 3. A locking part (9) for locking the horizontal sliding door is provided directly on a lever handle (6).
A locking device for a horizontal sliding door according to the above. 4. A stopper (31) for receiving said stopper (30).
The operation means for reciprocating the cylinder lock (36) attached to the lock piece (18) and operated by the key (39)
The locking device for a horizontal sliding door according to claim 1, wherein the locking device comprises: 5. A stopper (31) for receiving said stopper (30).
4. The horizontal sliding door according to claim 1, wherein the operating means for reciprocating with respect to the lock member comprises a rotary or sliding knob attached to the lock piece (18). 5. Locking device.