JPS5929096Y2 - door locking device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a door locking device.

A door equipped with a grip-top handle equipped with a conventional emergency lock release mechanism can be opened from the indoor side by pressing the button 2 provided in the center of the indoor grip ball 1, as shown in Figure 1a. On the other hand, as shown in FIG. 1, the lock can be unlocked from the outdoor side by fitting a coin 3 into the coin groove 4 provided in the center of the outdoor grip ball 1' and rotating it.

This emergency lock release mechanism can be installed on the indoor door of a child's room, etc., and in the event of an emergency such as a fire or an earthquake, even if it is locked from the inside, it can be unlocked from the outside with a coin and rescue the child. This was in response to an emergency request to be able to use the equipment.

In many cases, the grip balls 1, 1' incorporating the emergency lock release mechanism are sold attached to a door, so that at the construction site, it is only necessary to pivot the door to the opening frame. .

Furthermore, when installing a door, there may be cases where the outdoor grip ball 1' is placed on the indoor side when the door is installed upright. The grip balls 1 and 1' may be placed on the outside side of the room, and even if the door is installed upside down, no problem will occur because the grip balls 1 and 1' are vertically symmetrical.

However, in the case of the pull-type handles 5, 5' shown in FIG. When the emergency lock release mechanism is incorporated into the doors 5 and 5', and the handle 5 is used as the indoor handle and the handle 5' is used as the outdoor handle, the indoor handle 5 is attached to one side and the other side of the door 6, respectively. There was a problem in that two types of doors 6 had to be prepared with different arrangements (the outdoor handle 5' was arranged in reverse).

In addition, to explain the locking mechanism shown in FIG. 2, the protrusions 7a and 7a' protruding from the upper back surfaces of the handles 5 and 5' are inserted into the holes 8 (one not shown) provided on both sides of the door 6. In addition to fitting into the protrusion notches 8a, the protrusions 7b and 7b' protruding from the lower back surfaces of the handles 5 and 5' are respectively fitted into holes 9 provided on both sides of the door 6 (one is not shown). Then, the handles 5, 5' are fixed to both sides of the door 6, and a lever 10 (one not shown), which is pivoted to the back side of the handles 5, 5', is inserted into the center of the hole 8 and placed inside the door 6. , latch support 11 to door 6
Insert the Freon (11a) into the door 6 through the hole 12 provided on the side end surface of the door 6, and insert the Freon (11a) into the recess 6 of the door 6 with the screw 12H.
By pressing one of the button buttons 13 and 13' attached to the handles 5 and 5', the lever 10 is moved to the door 6 via the coil spring 14 (one not shown). The lever 10 engages the lever receiver 15 slidably attached to the latch support 11 and retreats inwardly of the door 6, and in response, the lever receiver 15 is connected to the lever receiver 15. (Front) 11 a
It is a mechanism that unlocks the door by retracting the door.

Therefore, the object of this invention is to provide a door locking device that allows a pull-type handle equipped with an emergency lock release mechanism to be selectively used for indoor or outdoor use.

An embodiment of this invention will be described with reference to FIGS. 3 to 5.

In other words, this door locking device, as shown in Figure 3,
By pushing the bushing button 13 of the handle 5 against the spring 14, the tip of the lever push rod 13a protruding from the back of the bushing button 13 pushes the lever 10, and the lever 10 moves to the third position with the vertical shaft 10a as the fulcrum. The lever 10 is rotated in the same counterclockwise direction (inward of the door), and the lever holder 15 is moved backward along the long hole 11b of the latch support 11, and the triangular latch 16 connected to the lever holder 15 is moved to the front 11.
Back inside a to unlock.

Furthermore, when the bushing button 13 is released, the bushing button 13 projects outward from the handle 5 together with the lever push rod 13a due to the action of the spring 14 and returns to its initial state. (not shown) causes the triangular latch 16 to protrude from the front 11a, and in conjunction with this, the lever receiver 15 also moves forward, and the lever 10
Rotate to the starting position.

On the other hand, there is a coin groove 17a above the button 13.
A knob 17 with
When the lock shaft 18 rotates, the tip 19a of the stopper 19 advances and retreats in front of the lever push rod 13a, and in its advanced state, it prevents the lever push rod 13H from moving forward, that is, from pressing the button 13, and locks the door. possible.

In addition, the handle 5' is also provided with a configuration that is bilaterally symmetrical to the handle 5,
That is, by pressing the button 13' shown in FIG. 4, the triangular latch 16 (FIG. 3) can be retracted and unlocked, and by rotating the knob 17' having a coin groove 17a', the button can be opened. It is possible to lock the button 13' by preventing it from being pressed.

As shown in FIG. 3, a rectangular recess 18a is formed at the tip of the lock shaft 18, and the tip of the lock shaft 18', which has a square cross section and is protruding from the back surface of the knob 17', is inserted into the rectangular recess 18a.
a, so that the stopper 19 can also be rotated by rotating the lock shaft 18' by operating the knob 17' to release the lock on the bush button 13 side.

In addition, the knobs 17 and 17' include lock operation knobs 20 and 17'.
can be selectively installed using screws 21 (Fig. 4).

This lock operation knob 20 has a protrusion 20a that can be fitted into the coil grooves 17a and 17a' of the knob 17 and 17', and also has a screw hole 20b in the center thereof.

FIG. 5 is a side view of the lock operation knob 20 of FIG. 3 viewed from the left side of the figure.

The lock operation knob 20 is installed by fitting the protrusion 20a into the coin groove 17a or 17a'.
This is done by inserting the screw 21 into the screw hole 20b and screwing it into the knob 17 or 17'.

The lock operation knob 20 is attached to a handle placed on the indoor side (assuming that the handle 5 is the indoor handle), and can be locked from the indoor side by rotating the lock operation knob 20. In an emergency, the lock can be released by fitting a coin into the coin groove 17a' of the outdoor knob 17' and rotating it.

The same applies when the lock operation knob 20 is attached to the handle 5' in the opposite manner to the above, and the handle 5' is used as the indoor handle.

In this way, rotate the lock operation knob 20 to either knob 17.
．． 17', so by simply attaching the locking knob 20 to the handle 5 or 5' located on the indoor side, that handle 5 or 5' can be used as the indoor handle, and the opposite side can be used as the indoor handle. It can be used as an outdoor handle, and the handles 5 and 5' can be selectively used for indoor or outdoor use.

Therefore, when selling the pull-type handles 5, 5' attached to the door, attach the handles 5, 5' of the same configuration to both sides of the door, and only the lock operation knob 20 is sold separately as an accessory. By attaching the lock operation knob 20 to the handle located on the indoor side at the site, only one type of door needs to be prepared.

In the above embodiment, as shown in FIG. 3, the stopper 19 is advanced to the front of the lever push rod 13a by rotation of the lock shaft 18, 18' for locking, but as shown in FIG. A pinion 22 is provided at the tip of the lock shaft 18, and a rack 23 that moves up and down in conjunction with the rotation of the pinion 22 is attached, and when the rack 23 is in the lowered state, its lower part 23a advances in front of the lever push rod 13a. It may also be possible to lock it.

As described above, the door locking device of this invention includes a pair of handles fixed oppositely to each other on both sides of the door, a latch arranged so as to be freely retractable on the end face of the door, and a latch attached to the surfaces of both handles. a pair of button buttons, a latch drive mechanism that retracts the latch from the door side end surface in conjunction with the pressing operation of the button buttons, and a pair of coil grooved knobs that are pivotally connected to the surfaces of the handles, respectively; It is equipped with a locking mechanism that blocks and releases the pressing operation of the button in conjunction with the rotation of these coil grooved knobs, and a lock operation knob that can be attached to either of the coin grooved knobs. This has the advantage that the pull-type handle equipped with an emergency lock release mechanism can be selectively used for indoor or outdoor use.

[Brief explanation of the drawing]

Figures 1a and 1) are perspective views of a conventional above-grip handle, Figure 2 is an exploded perspective view of a locking mechanism for a door with a conventional pull-type handle, and Figure 3 is an example of an embodiment of this invention. 4 is a half sectional view thereof, FIG. 5 is a side view of the lock operation knob, and FIG. 6 is a sectional view of the main part of an application example of the locking mechanism. 5.5'...Handle, 6...Door, 10.
...Lever (latch drive mechanism), 13.13'.
...Button button, 15...Lever receiver (latch drive mechanism), 16...Triangular latch, 1
7゜17'...knob, 17 a, 17 a
'...Coin groove, 18°18'...Lock shaft (lock mechanism), 19...Stopper (lock mechanism), 20...Lock operation knob .

Claims (1)

[Scope of utility model registration request] A pair of handles fixed opposite to each other on both sides of the door,
A latch that is movably arranged on the door side end face, a pair of button buttons attached to the surfaces of both handles, and a latch drive that retracts the latch from the door side end face in conjunction with the pressing operation of the button buttons. a pair of coil grooved knobs pivotally connected to the surfaces of the handles, respectively;
The door is equipped with a locking mechanism that prevents and releases the pressing operation of the button in conjunction with the rotation of these coin-grooved knobs, and a lock operation knob that can be attached to either of the coin-grooved knobs. Locking device.