JPS6020766Y2 - lock for sliding door - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a lock for sliding doors.

Conventionally, many locks used for storages and furniture with sliding doors have separate structures for the door handle and lock.

Therefore, the cost is high and installation tends to be labor-intensive.

Also, many of the ones with a handle and lock integrated into one have a complicated structure.

This invention relates to locks for sliding doors used in storage cabinets and furniture.
To provide a lock for a sliding door, which has a simple structure but has an integrated door handle and a lock, and can perform both complete locking and temporary locking.

The invention will be explained below by means of illustrated embodiments.

Reference numeral 1 denotes a base body that can be attached to a sliding door 2, and has a short cylindrical pull part 3 at the front and a short cylindrical part 5 with a small diameter at the center of the rear via a rear plate 4 following the pull part 3.

The short cylindrical pull part 3 has an inner diameter that is large enough to be hung by a finger, and has a stopper 7 protruding from the upper right front side of the plate 4 to make the rotation of the rotatable body 9 (described later) 90 degrees. A locking hole 8 is bored on the right side of the short cylindrical portion 5.

Reference numeral 9 denotes a rotatable body, which has a knob 10 at the front, a central hole 6 in which a cylinder lock 11 (described later) can be accommodated, and is rotatable within the short cylindrical pull part 3 of the base body 1. The cylindrical portion 12 having a small diameter at the rear is rotatably inserted into the short rear cylindrical portion 5 of the base body 1.

Further, in this rear cylindrical portion 12, in correspondence with the locking hole 8 formed in the base body 1, an end portion 14 of a locking plate 13 (described later) can be inserted in and out on the right side when the knob portion 10 is in the horizontal position. A hole 15 is bored, and a pair of sickle attachment protrusions 17 are provided on the rear plate 16 of the cylindrical portion 12.

The cylinder lock 11 is installed inside the central hole 6 of the rotatable body 9, and like a normal cylinder lock, a large number of disks 20 are provided inside the rotor 19 and protrude laterally with springs.
It can be engaged with the disc locking recess 18 formed in the central hole 6, and the disc 20 is retracted by the duplicate key, and the rotor 1
9 is designed to be rotatable.

The rotor 19 has a cam protrusion 21 at an off-center position at its tip, and as the rotor 19 rotates, the locking plate 13, which engages the central hole 22 with the protrusion 21, slides laterally. Possibly, the tapered end 14 of the locking plate 13 is fitted into the locking hole 8 of the base body 1 from the entrance/exit hole 15 of the rotatable body 9 .

Reference numeral 23 denotes a locking iron part, which has a pair of small holes 24 formed on the negative side.
is engaged with and fixed to the protrusion 17 at the rear of the rotatable body 9, and when the knob part 10 is placed in the horizontal position, the iron part 23 is also tilted sideways, and the bent part 25 at the tip is attached to the side of the storage body main body. It can be latched to a latching fitting 26 attached to the holder.

Reference numeral 27 denotes a click protrusion, which is formed so as to elastically protrude inward from the short cylindrical portion 5 at the rear of the base 1, and when the knob portion 10 is in the vertical position, that is, when the iron portion 23 is upright, the rotatable body 9 It is designed to engage with a click recess 28 formed on the outer periphery of the cylindrical portion 12.

In the figure, reference numeral 29 denotes rotation prevention protrusions, which are formed above and below the outer periphery of the short cylindrical pull portion 3 of the base body 1, and are used to fix the base body 1 to the sliding door 2 so as not to rotate.

Next, the operating conditions and effects of the present invention will be explained using the above embodiments.

First, in order to change from the locked state shown in FIG. 2 to the unlocked state shown in FIG.
Just turn it 80 degrees.

As a result, the cam protrusion 21 at the tip is
As shown in the figure, the end part 14 of the locking plate 13 that is engaged with the locking hole 8 on the right side of the short cylindrical part 5 of the base body 1 is connected to the cylindrical part 12 of the rotatable body 9 as shown in FIG. into the entrance/exit hole 15.

The rotatable body 9 is now rotatable, and is in a temporarily locked state in which the iron part 23 can be removed by turning the knob part 10.

When the knob 10 is turned clockwise, it turns 90 degrees and is locked by the stopper 7 in the vertical position, and at this time, the iron part 23 fixed to the rear part of the rotatable body 9 is also rotated from the horizontal position as shown in FIG. Since it moves and becomes the upright state as shown in FIG. 1, it comes off from the latching metal fitting 26 on the side of the main body of the storage cabinet, and becomes an unlocked state.

At the same time, the click protrusion 27 formed on the short cylindrical part 5 of the base body 1 engages with the click recess 28 in the cylindrical part 12 at the rear of the rotatable body 9, as shown in FIGS. 4 and 7. Since it is locked, the rotatable body 9 does not rotate inadvertently, and the iron part 23 is maintained in an upright state.

To change the unlocked state to the temporarily locked state, close the door by placing your hand on the handle 3 at the front of the lock base 1, and then release the knob 10 of the rotatable body 9, which is locked with just a click. If it is turned counterclockwise, it will turn 90 degrees and be locked by the stopper 7 in the horizontal position as shown in FIG. It hangs,
It will be in a temporary lock state.

To release this temporarily locked state, it is sufficient to turn the knob 10 clockwise, and the trowel portion 23 is removed from the latching metal fitting 26.

To change the temporary lock state to the lock state, the rotor 19 can be turned counterclockwise by 180 degrees using the key.

As a result, the locking plate 13, which had been drawn into the cylindrical portion 12 of the rotatable body 9 as shown in FIG. 7, is pushed by the cam protrusion 21, causing the end portion 14 to protrude laterally.

At this time, since the iron part 23 is in the sideways position and the entrance/exit hole 15 of the cylindrical part 12 is also on the right side, it is formed on the right side of the short cylindrical part 5 of the base body 1, as shown in FIGS. 5 and 6. The end portion 14 of the locking plate 13 is engaged therewith.

Therefore, the rotatable body 9 is connected to the fixed base body 1 and does not move, and the locked state in which the trowel portion 23 is latched to the latching metal fitting 26 of the storage main body is maintained.

In the above embodiment, the one used for the sliding door on the left side is shown, but in the one used for the door on the right side, the trowel part 23 is tilted sideways to the right, and the stopper 7 of the knob is provided at the upper left of the front surface of the rear plate 4. Also, the tank locking hole 8 is connected to the short cylindrical part 5 of the base body 1.
Of course, it may be formed on the left side of the .

Further, the appearance of the pull portion 3 of the base body 1 is not limited to that of the illustrated embodiment, and the stopper 7 may be provided at another position other than the rear plate 4 as long as it stops the rotation of the rotatable body 9. Needless to say.

As described above, the sliding door lock according to the present invention is relatively simple in structure, but the door handle and lock are integrated, making it cheaper in cost compared to separate parts. At the same time, the installation work for the waist can be completed all at once without the need to drill two holes in the door.

Furthermore, the lock can be put into a temporary lock state as well as a complete lock state with a simple operation, making it suitable for use as a lock for a sliding door such as a storage cabinet, for example.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and FIG. 1 is a front view when the lock is unlocked, FIG. 2 is a front view when the lock is locked, FIG. 3 is a right side view when the lock is unlocked, and FIG. 4 is a front view when the lock is unlocked. is a sectional view taken along IV-IV in Fig. 1, Fig. 5 is a sectional view taken along FIG. Drawing code, 1... Base, 2... Sliding door, 3... Pull part, 5... Short tube part, 8
...Latching hole, 9... Rotatable body, 10.
...Knob part, 11 ... Cylinder lock, 12 ... Cylindrical part, 13 ... Locking plate, 23 ... Trowel part.

Claims (1)

[Scope of utility model registration request] It consists of a base body 1 that can be attached to a sliding door 2, and a rotatable body 9 with a cylinder lock 11 inside, and the base body 1 has a pull part 3 on the front part.
At the same time, a short cylinder part 5 is provided at the rear, and a locking hole 8 is formed in the short cylinder part 5. A rotatably engaging cylindrical portion 12 is provided in each of the portions 5, a locking hook portion 23 is fixed to the rear portion of the cylindrical portion 12, and a cylinder lock 11 is provided within the cylindrical portion 12. A lock for a sliding door, which is provided with a locking plate 13 that projects laterally when the rotor 19 rotates and can be engaged with the locking hole 8.