JPH0122058Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a satsushi locking device.

Conventionally, as a device for automatically closing and locking a door when going out, etc., there is a device described in Japanese Utility Model Publication No. 55-44136.

However, this known locking device has the following problems. In other words, it is a so-called surface contact in which the upper surface of the locking piece slides into contact with the lower surface of the upper rail, and the frictional resistance is large and it may not be possible to open and close the shutter smoothly. The lock receiving part for the locking piece to lock must be fixed, which increases the number of parts, and the operating string is required to release the lock between the locking piece and the lock receiving part (unlocking). There were problems such as hanging from the top of the shutter, which was unsightly and difficult to operate.

The present invention aims to solve these conventional problems. Hereinafter, the present invention will be explained in detail based on the illustrated embodiments.

In Figures 1 to 4, 1 is a sliding door, 2 is a sash frame, and the sliding doors 1, 1 are installed inside the sash frame 2 as a window sash or an entrance sash so that they can be opened and closed left and right.
are fitted, 3 is the sash upper frame, 4 is the sash lower frame,
Reference numerals 5 and 5 denote left and right vertical frames, which are framed in a rectangular shape to constitute the sash frame 2. Note that 7 is an upper stile that forms the upper side of the sliding door 1, and 19 is a lower stile that forms the lower side of the sliding door 1.

In the illustrated example, the sash lower frame 4 has a sliding door running portion 21 having no sash ridges formed in a substantially planar shape, making it easier to sweep out dirt, etc. (see detailed illustration). (Although omitted) The traveling portion 21
A guide protrusion 20 is attached in a hanging manner at an upper position on the indoor side of the sliding door 1, and an L-shaped guided piece protruding toward the indoor direction from the lower edge of the sliding door 1 is attached to the guide protrusion 20 from below.
It slides and travels straight in an engaged state. Normally, the running sections 21 are arranged in multiple rows in vertically multi-tiered configuration.

A locking device 6 is attached to each sliding door 1, and specifically, the locking device 6 is attached to each sliding door 1.
A contact member 9 is attached to the lower stile 19 of the sash 19, and a contact member 9 is horizontally projected from the lower stile 19 toward the guide ridge 20 of the sash lower frame 4 toward the interior of the room, and the contact member 9 is slidable in the horizontal direction. It is attached to the lock box body 10 as a. The contact member 9 is moved in the protruding direction (in other words, toward the room)
In addition, a rotating ball 13 is rotatably attached to the tip of the contact member 9, and the ball 13 is elastically biased by the resilient member 11 of the box body 10. The ball 13 is elastically pressed and comes into contact with the indoor protrusion 20 of the lower frame 4 by the biasing force, and when the sliding door 1 moves (opens/closes), the ball 13 rolls into contact with the guide protrusion 20 of the lower frame 4. do. Furthermore, a notch 14 is formed in the guide protrusion 20 at a position corresponding to the contact member 9 when the sliding door 1 is in the fully closed state, as shown by the solid line in FIG. , elastic member 1
1, the tip end 12 of the contact member 9
is engaged with the notch 14 and becomes locked. That is, when the tip end 12 of the contact member 9 moves while slidingly contacting the guide protrusion 20 of the lower frame 4, it automatically engages with the notch 14 in a fully closed state and is locked. In this way, the protrusion length C of the contact member 9
will automatically change, switching between when the door is running (opening/closing) and when the door is locked.

The lock box body 10 is fixed inside the lower stile 19 at a predetermined position, but 15 is an unlocking mechanism for opening the sliding door 1, and is connected to the contact member 9. Specifically, an inverted L-shaped lever 18
is connected to the contact member 9, the upper end of the lever 18 projects toward the interior of the room from the hole 22, and
If the horizontal protrusion of the lever 18 is disposed above the upper surface of the running portion 21 or the guide protrusion 20 that is one step above, and is pressed with a finger in the direction of arrow F, the elastic member 11
The contact member 9 is disengaged against this force, and the sliding door 1 can be opened freely.

Note that the notch 14 is opened not at the position corresponding to the contact member 9 when the sliding door 1 is fully closed, but at a slightly open position, as shown by the imaginary line in FIG. 2, for ventilation purposes. It is also free to configure it so that it can be locked in a slightly open state. In this case, it is necessary for crime prevention to place the lever 18 at a position sufficiently away from the gap that opens slightly for ventilation, or it is necessary to place the entire locking device 6 at a position sufficiently far away from the gap that opens slightly for ventilation. Deploy.

Note that the sash naturally includes not only window sashes but also entrance sashes, and the sliding door 1 can be made of various types of shoji, as well as shutters or screen doors. Further, although a coil spring is illustrated as an example of the resilient member 11, it is also possible to use a plate spring or other springs.

The present invention is constructed as described above, and while the sliding door 1 is running, the rotating ball 13 of the contact member 9 is in rolling contact with the guide protrusion 20 of the sash bottom frame 14, so that the contact member 9 The sliding door 1 slides smoothly without any restrictions on its movement. Also, no rattling occurs in the indoor/outdoor direction. Moreover,
The sliding door 1 can be reliably and automatically kept in a locked state in a fully closed state or a slightly opened state for ventilation, and is an extremely excellent invention in terms of crime prevention. It has a wide range of applications, has a simple structure, does not damage the appearance of the sash, and has the advantage of being able to be mass-produced at low cost and being durable. Furthermore, the horizontal protrusion of the unlocking mechanism 15
Since it protrudes from the lower stile 19, its position is low and even children of short stature can unlock it.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a perspective view of the main part of the lower frame, FIG. 3 is a perspective view of the main part on the sliding door side, and FIG. 4 is a sectional side view of the main part. DESCRIPTION OF SYMBOLS 1...Sliding door, 4...Sash bottom frame, 9...Contact member, 11...Bulging member, 12...Tip part, 13
... Rotating ball, 14 ... Notch, 15 ... Unlocking mechanism, 19 ... Lower stile, 20 ... Guide protrusion, C ...
Projection length.

Claims (1)

[Scope of utility model registration request] From the lower stile 19 of the sliding door 1 to the inverted L of the lower sill 4
Contact member 9 toward the indoor direction toward the letter-shaped guide protrusion 20
A rotatable ball 13 is provided at the tip of the contact member 9, and the contact member 9 is resiliently biased in the projecting direction by a resilient member 11. is brought into rolling contact with the guide protrusion 20 of the sash lower frame 4 when the sliding door 1 runs, and furthermore, a notch 14 is formed at a predetermined position of the guide protrusion 20, so that the sliding door 1 is fully closed. When the state is reached or near the state, the tip 12 of the contact member 9 automatically engages with the notch 14 and is locked, and the horizontal protrusion that protrudes from the lower stile 19 of the sliding door 1 toward the interior of the room is closed. An unlocking mechanism 15 is connected to the contact member 9, and when the horizontal protrusion is pushed toward the outside of the room against the resilient urging force of the resilient member 11, the contact member 9 A sash locking device characterized in that it is configured so that engagement with a notch 14 is released.