JPH071489Y2 - Lock mechanism for opening / closing device of casement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a locking mechanism that locks a shoji in a closed state in a device for opening / closing a window such as single-opening, double-opening, sticking-out, and rolling-out.

(Prior Art) Opening window opening / closing devices are generally composed of a shoji that is openably and closably installed in an opening frame, an operating shaft disposed on the opening frame side, and an arm that connects the shoji and the operating shaft. The operating shaft is rotated by a motor or manually, and the shoji is opened and closed via an arm.

In such an opening / closing device for an opening window, a lock mechanism is provided between the shoji screen and the opening frame to lock the shoji screen in the closed state in the opening frame.

(Problems to be solved by the invention) However, in the conventional lock mechanism, after closing the shoji in the opening frame, the lever attached to the shoji side is manually operated to lock the lever on the opening frame side. Since it is configured, there is a problem that the operation for locking is troublesome and that the operation of the lock cannot be performed when the window is at a high place.

The present invention has been devised in view of the above circumstances, and an object of the present invention is a device for opening and closing an open window that has a simple structure and can automatically lock and unlock shoji by opening and closing the window. To provide a locking mechanism in.

(Means for Solving the Problems) The present invention for achieving the above object will be described with reference to FIGS. 1 to 5 corresponding to the embodiments.

The present invention is based on the shoji 5 which is openably and closably incorporated in the opening frame 3.
An opening and closing device for the open window 1 including an operating shaft 23 arranged on the side of the opening frame 3 and an arm 17 that connects the shoji 5 and the operating shaft 23 and opens and closes the shoji 5 by the rotation of the operating shaft 23. In FIG. 13, the operating shaft 23 and the arm are provided with a pawl 41 which rotates integrally with the operating shaft 23 and is disengageable on the sliding screen side 11 with the sliding screen 5 closed.
The key 17 and the key 37 are joined by a key groove 39 wider than the key 37 in the circumferential direction of the operating shaft 23, and between the arm 17 and the claw 41,
A spring 43 is provided for urging the arm 17 and the claw 41 in a direction in which they are separated from each other in the circumferential direction of the operating shaft 23.

(Function) First, the state in which the shoji screen 5 is opened will be described. In this state, as shown in FIG.
It is locked to 39A, the claw 41 and the arm 17 rotate integrally with the operating shaft 23, and the shoji 5 is opened and closed.

When the actuating shaft 23 is rotated in this state in the direction of closing the shoji 5, the shoji 5 closes at the position of the claw 41 shown by an imaginary line in FIG. When the operating shaft 23 is further rotated, the key 37 moves in the key groove 39 against the elastic force of the spring 43, and only the claw 41 rotates, and the claw 41 engages with the shoji side 11 to cause the third movement. A locked state is formed as shown in the figure.

Next, when the operating shaft 23 is rotated from the locked state in the direction of opening the shoji 5 as shown by the dotted arrow in FIG. 3, the pawl 41 rotates integrally with the operating shaft 23, and the locked state is released. During this time, the arm 17 does not move because it is biased by the spring 43, and the key 37 moves in the key groove 39. Eventually, after unlocking, the key 37 is locked to the one end face 39A of the key groove 39, and thereafter, the arm 17 and the operating shaft 23 rotate integrally, and the shoji 5 is opened and closed.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of the opening / closing device for opening windows, FIG. 2 is a side view of the same, and FIG. 3 is a side view of the same main part when locked.
The figure shows a half-section front view of the same main part.

1 is an opening window, 1 is an opening frame 3 attached to the building side
And the shoji 5 incorporated in the opening frame 3. The shoji screen 5 is composed of a glass plate 6 and a frame body 7 attached to the periphery thereof, and the upper part of the frame body 7 is rotatably assembled to the upper part of the opening frame 3. Further, as shown in FIG. 3, pins 11 are provided on both sides of the lower portion of the frame body 7 via brackets 9, respectively.

Reference numeral 13 denotes an opening / closing device for the opening window 1, 14 denotes a lock mechanism for the opening / closing device, and the opening / closing device 13 is provided on the lower both sides of the shoji 5 between the shoji 5 and the opening frame 3, respectively. As shown in FIGS. 3 and 4, the brackets 1 are provided on both sides of the lower part of the opening frame 3.
9. A short shaft 23 rotatably arranged via a bush 21 is provided.

As shown in FIG. 1, the two short shafts 23 are connected via a joint 25 and a rod 27, and by rotating the handle 29, the rods 31A,
Both short shafts 23 are configured to integrally rotate via 31B and gear mechanisms 33A and 33B.

The tip of the first arm 15 is pivotally attached to the pin 11 on the shoji 5 side, and the base end of the first arm 15 and the tip of the second arm 17 are pivotally attached to the pin 35.

The base end of the second arm 17 and the short shaft 23 are key-joined, and the key 37 driven into the short shaft 23 is inserted into the key groove 39 of the second arm 17.

The key groove 39 is formed wider than the key 37 in the circumferential direction of the short shaft 23, and is connected to the short shaft 23 so that the second arm 17 can freely rotate within a predetermined angle range.

Reference numeral 41 is a claw that constitutes the lock mechanism 14, and the claw 41 is coupled with the key 37 so as to rotate integrally with the short shaft 23, and the shoji 5 is opened by the opening frame 3
The claw 41 is configured to engage with and disengage from the pin 11 in the closed state.

Then, the coil spring 43 is wound around the short shaft 23, and the coil spring 43 urges the second arm 17 and the claw 41 in the direction away from each other in the circumferential direction of the short shaft 23.

Next, the operation will be described.

First, the state in which the shoji screen 5 is open will be described. When the handle 29 is rotated in this state, as shown in FIG.
For the second arm 17 and the short shaft 23, the key 37 has one end surface of the key groove 39.
The sliding door 5 moves integrally while being locked to 39A, and the shoji 5 is opened and closed through the first arm 15.

Next, when the handle 29 is rotated from this state in the direction of closing the shoji 5, the shoji 5 is first housed in the opening frame 3 at the position of the claw 41 shown in phantom in FIG. 5, and the opening frame 3 is closed. And since the shoji screen 5 does not move any further, a further handle 29
By the rotation operation of, the key 37 moves in the key groove 39 in the direction shown by the solid line arrow in FIG. 3 against the elastic force of the coil spring 43, and only the claw 41 rotates upward. Eventually, the claw 41 engages with the pin 11 to form a locked state, and in this state, the key 37 is located on the other end surface 39b of the key groove 39.

Next, from the locked state, handle 29 in the direction to open shoji 5
When is rotated, only the short shaft 23 and the claw 41 rotate in the direction shown by the dotted arrow in FIG. 3, and first, the claw 41 is disengaged from the pin 11 and the locked state is released. Meanwhile, during this time, the second arm 17
Is biased by the coil spring 43, the second
The arm 17 does not move when the shoji 5 is closed, and the key 37 moves in the key groove 39 as the short shaft 23 rotates. And claw 41
When the key is disengaged from the pin 11 and the lock is released, the key 37 is locked to the one end face 39A of the key groove 39, and thereafter, the second arm 17, the claw 41 and the short shaft 23 move integrally, and the shoji 5 Is opened and closed.

Therefore, according to this embodiment, the window 1 can be automatically locked and unlocked by the opening / closing operation of the window 1 with a simple structure in which the key groove 39 of the second arm 17 is formed large.

In the embodiment, the case where the shoji is opened and closed by the first and second arms has been described, but the number of arms and the arrangement structure thereof are arbitrary, and the operating shaft uses a power source such as a motor. You may rotate it.

(Effects of the Invention) As is apparent from the above description, according to the lock mechanism in the opening / closing device of the opening window according to the present invention, the shoji screen is automatically locked and unlocked by the opening / closing operation of the window due to the simple structure. Can be done.

[Brief description of drawings]

FIG. 1 is a front view of the opening / closing device for opening windows, FIG. 2 is a side view of the same, and FIG. 3 is a side view of the same main part when locked.
FIG. 5 is a front view of a half section of the same main part, and FIG. In the figure, 1 is an open window, 3 is an opening frame, 5 is a shoji, 13 is an opening / closing device, 14 is a locking mechanism, 15 is a first arm, 17 is a second arm, 23 is a short shaft, 37 is a key, 39 is a A key groove, 41 is a claw, and 43 is a coil spring.

Claims (1)

[Scope of utility model registration request] 1. A shoji installed in the opening frame so as to be openable and closable, an operating shaft disposed on the opening frame side, an arm connecting the shoji and the operating shaft, and opening and closing the shoji by rotating the operating shaft. In an opening / closing device for an opening window equipped with, the operating shaft and the rotating shaft are integrally rotated, and the opening frame is provided with a disengageable claw on the shoji side in a state where the shoji is closed. A keyway that is wider in the circumferential direction of the actuating shaft, and a spring is provided between the arm and the pawl that biases the arm and the pawl in a direction that separates the arm and the pawl from each other in the circumferential direction of the actuating shaft. A lock mechanism for the opening / closing device of the characteristic window.