JP2516582Y2 - Window opening and closing device safety mechanism - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a window opening / closing device for a sash window having a hinge type or a shaft type opening / closing style.

[0002]

2 and 3 show a conventional hinge-type or shaft-type opening / closing device for a sash window. A tightening handle 2 is rotatably installed on the shoji 1 side of the window, and a latch 3 is provided integrally with the tightening handle 2.
Further, a rod 4 is installed on the shoji 1 side so as to be vertically movable, is connected to the latch 3, and is vertically moved by the rotation of the tightening handle 2. Furthermore, a latch 5 is rotatably installed above the tightening handle 2,
It is connected to the rod 4 and is rotated simultaneously with the rotation of the tightening handle 2. On the other hand, the latch 3,
Corresponding to No. 5, the metal fittings 7, 8 are provided on the side of the frame 6, and are locked by engaging the latches 3, 5.

When the window is opened, the tightening handle 2 is rotated to rotate the latch 3 and the upper latch 5 is rotated via the rod 4 to release the engagement with the metal fittings 7 and 8. It unlocks and opens the window. Further, when closing the window, after holding the tightening handle 2 to close the window, the tightening handle 2 is rotated to rotate the latches 3 and 5, and the latches 7 and 8 are engaged and locked.

[0004]

Since the conventional window opening / closing device is constructed as described above, the tightening handle 2 is gripped,
When trying to open or close the window, the tightening handle 2 inevitably rotates. Therefore, when the window is closed, the latches 3 and 5 may protrude and come into contact with the frame side to damage the latches 3 and 5. The present invention has been made to solve the above problems, and prevents the latch handle from rotating unless it is in a lockable position to prevent the latch from protruding and damage caused by abutting on the frame. The purpose is to obtain a safety mechanism for a window opening / closing device that can be eliminated.

[0005]

In order to solve the above-mentioned problems, a safety mechanism of a window opening / closing device according to the present invention has a closing handle in a hinge-type or shaft-type opening / closing manner and is connected to the closing handle. A window opening / closing device having a pair of upper and lower latches that are rotated through a rod that can be moved up and down and a fastening member that is a receiving metal member that engages with the latch. Is equipped with a latch that abuts against a hitting member installed on the frame side and that rotates by the axis of entry and exit associated with opening and closing of the window, and the stopper that allows the latch to engage and disengage on the shoji side of the window. It is characterized by being installed.

[0006]

Since the safety mechanism of the window opening / closing device according to the present invention is constructed as described above, at the lockable position, the shaft abuts against the contact member on the frame side and is pushed in, and the latch is disengaged from the stopper. Therefore, the rod can be lowered by rotating the tightening handle, and the pair of upper and lower latches can be rotated to unlock and open the window. On the other hand, when the window is opened, the shaft projects and the latch rotates to engage with the stopper, which prevents the rod from descending and disables the rotation of the tightening handle. Since the tightening handle cannot be rotated unless it is in the lockable position, the tightening handle does not rotate when the handle is gripped and the window is closed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention is shown in FIGS. A pedestal 9 is attached to a rod 4 that is vertically movable on the shoji screen 1, and a shaft 10 is attached to the pedestal 9 by a spring 1
A latch 12 is installed which is urged by 1 so as to be able to move in and out in the direction of arrow A, and a latch 12 which is rotated in the direction of arrow B with the movement of the shaft 10. Further, a latch 12 is installed on the shoji 1 side so that it can be engaged with and disengaged from a stopper 13. When the latch 12 engages with the stopper 13, the rod 4 cannot be lowered, whereby the tightening handle 2 rotates. When the shaft 10 is pushed in, the latch 12 separates from the stopper 13, and the rod 4
Can be lowered, so that the tightening handle 2 can be rotated.

On the other hand, on the frame side, a contact member 14 having a flat surface is provided at a position corresponding to the shaft 10 so as to come into contact with the shaft 10 when the window is closed and to push the shaft 10 therein. The other structure is the same as the conventional structure shown in FIGS.

However, when the window is closed, FIG.
As shown in (A), the shaft 10 contacts the contact member 14 and is pushed in, so that the latch 12 rotates in the arrow B direction and is separated from the stopper 13. Therefore, in this state, the tightening handle 2 can be rotated to lower the rod 4, the latches 3 and 5 can be released from the receiving fittings 7 and 8 and unlocked to open the window. When the window is opened, the shaft 10 is projected by the spring 11, which causes the latch 12 to rotate and engage the stopper 13, so that the rod 4 is prevented from descending and the tightening handle 2 cannot rotate. Therefore, when the tightening handle 2 is gripped and the window is closed, the tightening handle 2 does not rotate, and the locking handle 2 rotates carelessly, the latch projects, and there is no risk of contacting the frame and damaging it. When the window is closed, the shaft 10 is pushed into contact with the contact member 14, and the latch 12 is separated from the stopper 13, so that the tightening handle 2 is rotated,
The latches 3 and 5 can be locked by engaging the metal fittings 7 and 8

[0010]

As described above, according to the safety mechanism of the window opening / closing device of the present invention, the tightening handle cannot be rotated unless it is in the lockable position. Therefore, when the window is opened, the tightening handle cannot rotate, and the handle does not rotate when gripping the tightening handle to close the window. You can eliminate all damage.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, (A) is a plan view and (B) is a front view.

FIG. 2 is a front view of a conventional window opening / closing device.

FIG. 3 is a cross-sectional view of a conventional window opening / closing device.

[Explanation of symbols]

 1 Shoji 2 Tightening handle 3,5 Latch 4 Rod 7,8 Support bracket 9 Pedestal 10 Shaft 12 Latch 13 Stopper 14 Stopper member

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of upper and lower latches, which have a tightening handle in a hinge-type or shaft-type opening / closing manner, are connected to the tightening handle, and are rotated through a rod that can move up and down, and the latch. In a window opening / closing device having a tightening fitting made of a fitting fitting, a rod is provided with a pedestal, and the pedestal has a shaft that abuts against a hitting member installed on the frame side and moves in and out as the window opens and closes. A safety mechanism for a window opening / closing device, which is provided with a latch that rotates in and out coaxially, and a stopper on which the latch can be engaged / disengaged is installed on the shoji frame side of the window.