JPS5828138Y2 - Window arm stopper device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stopper device that locks an arm that slides as the window is opened and closed so as to maintain the open state when the window is opened.

In conventional stopper devices of this type, the arm is locked to maintain the extended state when the window is finished opening, and the arm must be manually locked when the window is closed.

In addition, in the above-mentioned locking mechanism, a ball supported by a plate-like body constituting the other arm is inserted between two plate-like bodies constituting one arm, and the ball is pressed. And a strong force is required to escape (due to strong pressure that prevents the ball from escaping naturally due to the wind).

For this reason, there were drawbacks such as difficulty in operation for people with weak strength such as women.

The purpose of this invention is to provide a device that automatically locks the arm when the window is opened, and that can also be easily released using a button.

In the figure, A is a window attached to a window frame B via a hinge C so as to be openable and closable.One end of an arm 1 is rotatably connected to the lower stile of the window A via a pin 2.

Further, a box 3 is fixed to the upper surface of the lower stile of the window frame B so as not to collide with the lower edge of the window A when the window A is closed.

The top wall of the box 3 is provided with a long hole 4 extending from one end toward the hinge C, and a recessed portion 5 extending from the distorted portion of the long hole 4 toward the room.

6 is a pin supported at the other end of the arm 1 so as to fit into the length 7L4, and 7 is the pin 6 that has reached the distorted part of the elongated hole 4 and is inserted into the recessed part 5.
This is a leaf spring that pushes the pin 6 so that it fits into the pin 6.

Further, the box 3 has a built-in push-back mechanism that pushes the pin 6 back from the recess 5 into the elongated hole 4 during operation.

This push-back mechanism consists of a slide plate 8 which is slidably passed through the box 3, and a pin 6 is brought into contact with the tip of the slide plate 8, and as the slide plate 8 moves forward, the slide plate 8 is inserted into the elongated hole 4 from the recessed part 5. It is constituted by a tapered edge 9 provided to move the pin 6 and a spring 10 provided to provide the sliding plate 8 with retractability.

Reference numeral 11 indicates a hole provided in the end wall of the box 3 for the slide plate 8 to pass through, and reference numeral 12 indicates a hole for mounting the box 3.

The operation of the stopper device according to this invention will be explained based on the above-mentioned structure. The bush of the slide plate 8 causes the pin 6, which is fitted into the recessed part 5 at the tapered edge 9, into the elongated hole 4. being pushed back.

In this state, by closing the window A shown in the open state, the pin 6 slides toward one end of the elongated hole 4, thereby closing the window A.

When the window A in the closed state is opened, the pin 6 slides from one end of the elongated hole 4 to the other end.

At this time, when the pin 6 faces the recessed part 5, it gets caught in the leaf spring 7 and pushes the pin 6 in the elongated hole 4 into the recessed part 5, so that the window A can be maintained in the open state.

As described above, according to the stopper device according to the present invention, as the window is opened, the pin that slides within the elongated hole is automatically pushed into the recessed portion by the leaf spring.

For this reason, the window can be kept open.

The box also includes a slide plate that penetrates the box, and a tapered edge provided at the tip of the slide plate so as to contact the pin and move the pin from the recessed part to the elongated hole as the slide plate moves forward. By pushing the pin in the recess back into the elongated hole by the push-back mechanism, the arm can be unlocked and the window can be closed.

[Brief explanation of drawings]

FIG. 1 is a plan view of the device according to this invention, and FIG. 2 is a partially cutaway front view of the same. A...Window, B...Window frame, C...
・Hinge, D...Push-back mechanism, 1...
・Arm, 2... Pin, 3... Box, 4... Long hole, 5... Recessed part, 6...
...Pin, 7...Plate spring, 8...
・Slide plate, 9...Tapered edge, 10...
... Spring, 11 ... Penetration hole, 12 ...
... Mounting is through holes.

Claims (1)

[Scope of utility model registration request] An arm with one end pivoted to a window that opens and closes by rotation, a box fixed to the side stile of the window frame, a long hole provided between both ends of the top wall of this box, and a fulcrum for opening and closing the window of this long hole. A recessed part connected from the other end of the side and facing one side of the elongated hole, a pin supported at the other end of the arm so as to fit into the elongated hole, and a pin in the recessed part on the other end of the elongated hole. A pressing plate provided to push the box, and a sliding plate penetrating the box,
A stopper device for a window arm comprising a push-back mechanism configured with a tapered edge provided at the tip of the slide plate to contact the pin and push the pin back from the recess into the elongated hole as the slide is operated.