JPH0345500Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a locking device for a door lock for a partition provided on the door of an indoor partition or a bathroom, a toilet, etc.

[Conventional technology]

Conventionally, this type of door locking device has a structure in which a temporary locking latch bolt is released by manually rotating a knob. That is, a substantially semicircular cam is fitted to a square shaft connected to each knob on the outside and inside of the room, and this cam is fitted into an opening of a sliding member connected to the rear end of a latch bolt, and this cam rotates together with the knob. When the latch bolt is moved, one end of the cam engages the sliding member and retracts the latch bolt in the release direction.

[Problem that the invention attempts to solve]

Door locks that unlock the latch bolt by turning the knob have the disadvantage that young children cannot turn the knob far enough, and also when the door locks are used in bathrooms or washrooms where hands are wet or slippery due to soap. ,
Since the knob cannot be rotated, it is preferable to unlock the latch bolt by pushing the push button rather than rotating the knob. In addition, most of this type of partition locks are not equipped with a locking device for permanent locking, but are temporary locking devices, so to make a permanent lock, a cylinder lock is installed on the outside of the room, so-called an entrance door. A lock is used or a separate latch device is provided on the interior side of the door, but these methods have disadvantages such as high cost and troublesome installation work.

[Means for solving problems]

The purpose of this invention is to eliminate such drawbacks.
An outdoor escutcheon and an indoor escution that are fixed to the outdoor and indoor surfaces of the door, respectively; an outdoor push button and an indoor push button that are inserted into through holes provided in the outdoor escution and the indoor escution, respectively; , which is connected to a latch bolt that is retractably provided at the end of the door and is biased by a spring in a direction protruding from the end of the door, and includes a sliding frame having an opening and a locking portion provided at one end. an outside cam inserted into the opening, a protrusion provided at the other end abutting the outdoor push button, and pivotally connected to a pin provided on the outdoor escutcheon; and a lock provided at one end. is inserted into the opening, a protrusion provided at the other end abuts the indoor push button, is pivotally connected to a pin provided on the indoor escutcheon, and an inside cam is provided with an engaging protrusion. and a stopper member which is pivotally connected to the indoor escutcheon, has a bulge that comes into contact with and separates from the engagement protrusion, and is rotatable from the interior of the room, and the bulge comes into contact with the engagement protrusion. When the inside cam comes into contact with the inside cam, rotation of the inside cam is prevented by the bulge.

[Effect]

When one of the indoor and outdoor push buttons provided on the indoor and outdoor sides is pushed, for example, when the indoor push button is pushed, the inside cam that is in contact with the indoor push button rotates about the pin and locks the latch bolt. One end of the sliding frame connected to the latch bolt is pushed while resisting the biased spring, so the latch bolt retreats in the release direction. Furthermore, when the other outdoor push button is pushed, the outside cam rotates and pushes the sliding frame, so the latch bolt connected to the sliding frame resists the spring that biases the latch bolt. while moving backward in the direction of release. Also, when the stopper member provided on the indoor escutcheon rotates from the indoor side and the bulge comes into contact with the engagement protrusion of the inside cam, the bulge prevents the inside cam from rotating. Push operation of the outer push button is prevented and locked.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.

In the drawings, FIG. 1 is a longitudinal cross-sectional view of the present invention, and FIG. 2 is a longitudinal cross-sectional view of the device when it is released.

In FIG. 1, numerals 1 and 2 are an outdoor escutcheon fixed to the outdoor surface of the door 3, and an indoor escutcheon fixed to the indoor surface.

A through hole 1a is formed in the escutcheon 1 on the outdoor side of the door 3, and a slidable outdoor push button 4 that can be pushed with a finger is fitted into the through hole 1a, and a flange 4a formed on the push button 4 An outside cam 6 is provided with a protrusion 6c abutting and rotatably pivoted by a pin 5, and the other locking portion 6a of the outside cam 6 is connected to the rear end of a latch bolt 7. It is inserted into the opening 8a of the freely sliding frame 8. A groove 6b is formed in the locking portion 6a, and a locking portion 9b of an inside cam 9 provided in the indoor escutcheon 2 is fitted between the groove 6b and the opening 8a. The cam 9 is rotatably mounted on a pin 10, and this inside cam 9
The other protrusion 9c of the indoor escutcheon 2
Indoor push button 1 slidably inserted into through hole 2a of
When the indoor push button 11 is pressed with a finger, the inside cam 9 rotates about the pin 10 and the protrusion 9b of the inside cam 9 slides. The end portion 8b of the frame body 8 is pressed, and the latch bolt 7 is moved back in the release direction while resisting the spring 12 that biases the latch bolt 7. Further, when the outdoor push button 4 is pushed with a finger, the outside cam 6 and the inside cam 9 move together to press the end 8b of the sliding frame 8, and the latch bolt 7
The latch bolt 7 is moved back in the release direction while resisting the spring 12 that biases the latch bolt 7 (see FIG. 2).

In order to prevent the stopper member 14 from being released from the outdoor side, the pin 13 of the stopper member 14 is pivotally attached to the indoor escutsion 2, and the stopper member 14 can be rotated with a finger from indoors using the opening provided in the indoor escutsion 2. It is operable. When the stopper member 14 rotates, the bulge 14a provided on the stopper member 14 comes into contact with and separates from the engagement protrusion 9a provided on the inside cam 9, and when the bulge 14a comes into contact with the engagement protrusion 9a, The rotation of the inside cam 9 is blocked by the bulge 14a, and the indoor/outside push buttons 11, 4 cannot be pressed, resulting in a locked state.

In addition, when an unexpected accident occurs in the bathroom, there are times when it is necessary to perform an emergency release operation from the outdoor side. small hole 1
5 matches the position of the stopper member 14, and in case of an emergency, insert the wire 16 into this small hole 15 and insert the stopper member 14 into the tip 16a of the wire 16.
When pressed with the pin 1, this stopper member 14
3 around the support shaft, and the bulging portion 1 of the stopper member 14 is
4a is disengaged from the engagement protrusion 9a of the inside cam 9, and the indoor/outside push buttons 11, 4 can be pressed and the latch bolt 7 can be moved back in the release direction.

Reference numeral 17 is a handle integrally formed with the indoor and outer escutcheons 1 and 2, 18 is a fixing member for the indoor and outer escutches 1 and 2, and 19 is a leaf spring that biases the stopper member 4.

[Effect of idea]

As described above, the present invention engages the protrusion of the inside cam with the protrusion of the stopper member provided on the indoor side inside the protrusion of the outside cam, and engages with another protrusion of the inside cam. Since it is made to be detachable, the indoor/outside push button cannot be pushed or operated from the outside of the room, so it is securely locked.
Moreover, whether or not the lock is in the locked state can be confirmed by simply pressing the push button, and the locking structure using the reversible stopper member is also simple, which has the effect of reducing the causes of failure.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view when locked, Fig. 2 is a longitudinal cross-sectional view when unlocked, and Fig. 3 is a longitudinal cross-sectional view when unlocked.
The figure is an external perspective view, Figure 4 is an exploded perspective view, Figure 5 is a perspective view of the main part when unlocked, Figure 6 is a perspective view of the main part when locked, and Figure 7 is B-B of Figure 1. FIG. 8 is a cross-sectional view taken along the line C-C' of FIG. 2. 1...Outdoor escutcheon, 2...Indoor escutcheon, 3...Door, 4...Outdoor push button,
6...Outside cam, 6a...Locking part, 6c
...Protrusion, 7...Latch bolt, 8...Sliding frame, 8a...Opening, 9...Inside cam, 9
a... Engaging projection, 9b... Locking part, 9c... Projection part, 11... Indoor side push button, 12... Spring,
14...Stopper member.

Claims (1)

[Claims for Utility Model Registration] An outdoor escutsion and an indoor escution fixed to the outdoor and indoor surfaces of the door, respectively, and inserted into through holes provided in the outdoor and indoor escutches, respectively. an outdoor push button and an indoor push button; a sliding frame having an opening and connected to a latch bolt that is retractably provided at the end of the door and biased in a direction protruding from the end of the door by a spring; and one end. A locking part provided on the outside cam is inserted into the opening, a protruding part provided on the other end abuts the outdoor push button, and an outside cam is pivotally connected to a pin provided on the outdoor escutcheon. A locking portion provided at one end is inserted into the opening, a protruding portion provided at the other end abuts the indoor push button, and is pivotally connected to a pin provided on the indoor escutcheon to engage. an inside cam provided with a protrusion; and a stopper member pivotally connected to the indoor escutcheon, provided with a bulge that comes into contact with and separates from the engagement protrusion, and that can be rotated from inside the room, the bulge A locking device for a partition door lock, wherein rotation of the inside cam is blocked by the bulge when the inside cam comes into contact with the engagement projection member.