JPS6236935Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for juxtaposed sliding doors, and aims to provide a locking device that has an extremely simple structure and can be locked reliably.

Traditionally, side-by-side sliding doors have been used in furniture such as archives and counters, where both doors are flush when closed, but since there is no overlap between the two doors in this type of door, each door has its own locking device. The door was fixed to the main body, and had two locks, making locking and unlocking extremely troublesome.

In view of the above-mentioned problems, the present invention is constructed so that parallel sliding doors can be opened and closed by a single locking device.

Now, one embodiment of the juxtaposed sliding doors of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of the door in the closed and locked state, Fig. 2 is a front view of the same main part, and Figs. 3 and 4 are cross-sectional views. It is.

The side-by-side sliding doors have two doors 2a and 2b on the front side of the main body 1 at the center edge 3 when the doors are closed.
When one door 2a is opened, the edge 3a of the door 2a follows the trajectory of the two-dot chain line A in FIG. 4 and touches the front surface of the other door 2b. The configuration is such that it can be moved to any location.

The locking device 4 of the present invention is for both doors 2a, 2b of this type.
The partition plate 5 is fixed to the center of the main body in an upright position.

Edges 3a, 3b of both doors 2a, 2b face each other on the front surface of the middle branch cutout plate 5 when the doors are closed, and opposing substantially semicircular lock notches 6a, 6b are formed in the edges. .

Reference numeral 7 denotes a cylinder lock that is slidably inserted in the axial direction into the cylindrical hole 9 of the lock case 8 attached to the middle splitter plate 5, and is inserted into the cylindrical hole 9 by operating the key 16. Two engagement notches 15 formed in the wall
a, 15b, and has a protruding position B and a retracted position C, and a coil spring 11 is elastically loaded between the cylinder lock 7 and the bottom of the lock case 8. Key mounting plate 1
2 to the partition plate 5.

Reference numeral 13 denotes a guide screw installed upright on the side of the cylinder lock 7. The guide screw 13 protrudes from a long hole 14 bored in the side wall of the lock case 8, and is slidable along the long hole 14. At the same time, rotation of the cylinder lock 7 is prevented.

The locking device 4 having the above configuration is used for both doors 2 when the door is closed.
The lock end 7a of the cylinder lock 7 is in a slightly protruding position B when the cylinder lock is locked, and is in a retracted position C when the lock is unlocked, relative to the front position D of the cylinders a and 2b.

Therefore, when the lock is locked, the lock end 7a is in the lock notches 6a, 6.
b, and protrudes to a position intersecting the door opening trajectory A of the edges 3a, 3b of the doors 2a, 2b, thereby preventing the doors 2a, 2b from moving.

Next, when the key 16 is operated to lock the locking protrusion 10 of the cylinder lock 7 into the locking notch 15b on the back side,
The lock end 7a of the cylinder lock 7 retreats from the surfaces of both doors 2a, 2b, sinks into the rear of the lock notches 6a, 6b, and retreats from the door opening trajectory A, making the doors 2a, 2b movable and in the unlocked state. .

As explained above, the locking device for the side-by-side sliding doors of the present invention is configured so that the lock end moves in and out of the intersection position of the movement locus of the edges of the double sliding doors, so one device can lock both sliding doors. The practical effects of implementing this invention are extremely large, as the door can now be locked and unlocked at the same time, and the lock can be reliably locked and unlocked due to the simple structure of the length that moves in and out of the lock end. .

[Brief explanation of the drawing]

The drawings show an embodiment of the locking device for the juxtaposed sliding doors of the present invention. Fig. 1 is a perspective view of the cabinet showing the door closed and locked, Fig. 2 is a front view of the same main part, and Fig. 3 is a perspective view of the cabinet showing the door closed and locked. 2, FIG. 4 is a sectional view taken along the line - in FIG. 2, and FIG. 5 is an exploded perspective view of the main parts. 1~Main body, 2a, 2b~Door, 3a, 3b~Edge, 4~Lock device, 5~Medium branch plate, 6a, 6b~
Lock notch, 7~cylinder lock, 8~lock case, 10
- Locking protrusion, 11 - Coil spring, 12 - Key mounting plate, 15a, 15b - Engagement notch, 16 - Key, A - Door opening trajectory.

Claims (1)

[Scope of utility model registration request] The locking device for side-by-side sliding doors, in which two doors are flush when closed and the opening door moves to the front of the other door when opened, is provided with a locking device whose lock end protrudes or retracts from the back surface of both doors at the intersection of the opening trajectories of the inner edges of both doors.