JPH0345501Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an emergency release device for a door lock for a partition provided on a 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. In addition, the structure of such partition door locks is complicated, and if an accident occurs inside the room after locking the lock from the inside in a bathroom or toilet, it may not be possible to unlock it from the inside. When it gets tired, it can be released by fitting a coin, screwdriver, etc. into the groove of the rotor provided in the center of the knob, which is operated from outside with a key or rotated by hand.

[Problems to be solved by the invention] Such a door lock device is prone to failure due to its complicated structure, and in an emergency, it must be unlocked from outside using a key or other tools. However, since the lock hole into which the key is inserted and the groove into which the tool is fitted are largely exposed to the outside, anyone can unlock the lock, for example during construction. However, there are disadvantages such as allowing third parties to illegally use the bathroom or toilet, and making people feel psychologically uneasy indoors.

[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; , 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 a pin provided on the outdoor escutcheon. an outside cam which is pivotally connected to the cam, a locking part provided at one end is inserted into the opening, and a protruding part provided at the other end abuts the outdoor push button; and a pin provided on the indoor escutcheon. The locking part provided at one end is inserted into the opening, the protruding part provided at the other end abuts the outdoor push button, and an inside cam having an engaging protrusion is connected to the indoor escutcheon. a stopper that is pivotally mounted and rotatably operated from within the room, and has a bulge that can be moved toward and away from the locking protrusion and prevents rotation of the inside cam when abutting the locking protrusion; the member and the outdoor escutcheon,
A small hole penetrating toward the stopper member is provided, and the stopper member is pushed by a release tool that can be inserted into the small hole to separate the bulge from the engagement protrusion. be.

[Effect]

When a wire is inserted into the small hole of the outdoor escutcheon in the direction of the arrow (see Figure 8 C-C'), the tip of the wire presses against the stopper member, causing the stopper member to rotate and expand. Since the projecting portion is separated from the engagement protrusion of the inside cam and the inside cam is rotatable, the indoor/outside push button can be pressed and the emergency release can be performed from the outside.

〔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 inserted into the through hole 1a, and both ends are fixed to the escutcheon 1 on the outdoor side. An outside cam 6 is pivotally attached to the intermediate portion of the pin 5, a locking portion 6a is provided at one end of the outside cam 6, and a groove 6b is formed in the locking portion 6a. A slidable sliding frame 8 connected to the rear end of the latch bolt 7 is provided with an opening 8a, and the locking portion 6a is inserted into the opening 8a. On the other hand, a protrusion 6c is provided at the other end of the outside cam 6,
A protrusion 6c abuts against a flange 4a formed on the push button 4.

Further, an inside cam 9 is pivotally attached to the middle part of a pin 10 whose both ends are fixed to the indoor escutcheon 2, and a locking part 8b is provided at one end of the inside cam 9, and the locking part 8b is connected to the opening 8a. It is inserted and fitted into the groove 6b. The other protrusion 9c of the inside cam 9 comes into contact with a flange 11a formed on the indoor push button 11 which is slidably inserted into the through hole 2a of the indoor escutcheon 2. When pushed with a finger, the inside cam 9 rotates around the pin 10, and the locking portion 9b of the inside cam 9 presses the end 8b of the sliding frame 8, thereby biasing the latch bolt 7. spring 1
2, move the latch bolt 7 backward in the release direction. Furthermore, 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 against the spring 12 that biases the latch bolt 7. While doing so, move the latch bolt 7 back in the releasing direction (see Fig. 2).

In order to prevent release from the outdoor side, a rotatable stopper member 14 provided on the indoor escutsion 2 is pivotally attached with a pin 13. When the stopper member 14 is rotated, the bulge 14a provided on the stopper member 14 comes into contact with and separates from the engagement protrusion 9a formed on the inside cam 9, and when the bulge 14a comes into contact with the engagement protrusion 9a, the inside Since the cam 9 cannot be rotated, the indoor/outside push buttons 11, 4 cannot be pushed and are 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 is aligned with the position of the stopper member 14, and in an emergency, when a release tool 16 such as a wire is inserted into this small hole 15 and the stopper member 14 is pressed with the tip 16a of the release tool 16 such as a wire, this stopper is released. The member 14 is reversed around the pin 13 as a pivot, and the bulging portion 14a of the stopper member 14 is disengaged from the engagement protrusion 9a of the inside cam 9, and the indoor/outside push button 11,
4 becomes possible, 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 provides a door lock with a small hole penetrating the outdoor escutcheon, a stopper member at a position opposite to the small hole, and a wire or the like inserted through the small hole. Since it can be pressed at the tip of the release tool, it can be released from the outside in an emergency, and by making the small hole smaller, it has the effect of improving the appearance and protection.

[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, 14a...Bulging portion.

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; an outside cam that is pivotally connected to a pin provided on the outdoor escutcheon, a locking portion provided at one end is inserted into the opening, and a protruding portion provided at the other end abuts the outdoor push button; It is pivotally connected to a pin provided on the indoor escutcheon, a locking part provided at one end is inserted into the opening, a protrusion provided at the other end abuts the outdoor push button, and has an engaging protrusion. an inside cam, which is pivotally connected to the indoor escutcheon, is provided so as to be rotatable from inside the room, and is provided so as to be able to come into contact with and separate from the locking protrusion, and when it comes into contact with the locking protrusion, rotates the inside cam; a stopper member having a bulging portion for blocking; and a small hole penetrating toward the stopper member in the outdoor escutcheon; the stopper member is pushed by a release tool insertable into the small hole; An emergency release device for a partition door lock, characterized in that the bulging portion is separated from the engaging protrusion.