JP3448562B2 - Louver window opening and closing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver window opening / closing device that opens and closes a plurality of vertically movable louvers in an adjustable angle.

[0002]

2. Description of the Related Art As a typical example of a conventional louver window opening / closing device, the rotation of a handle is transmitted to a worm gear, and a link protruding from a worm wheel moves an operating rod up and down, thereby rotating a movable louver. It is known that it opens and closes. However, since the worm gear is expensive, it is required to simplify the structure and reduce the cost.

[0003]

SUMMARY OF THE INVENTION The present invention was developed in consideration of the above situation, and an object thereof is to provide an inexpensive louver window opening / closing device.

[0004]

A louver window opening / closing device according to the present invention transmits stepwise swinging of an operating lever in the vertical direction to an operating rod and a movable louver in parallel via pins.
In a louver window opening / closing device for adjusting the opening / closing angle of a movable louver, a swinging support shaft for an operation lever is provided in a case attached to a window frame vertical frame, and a coil spring and a support shaft for urging the operation lever toward the indoor side are provided. Is housed in a first slide groove opened in the base of the operation lever, a pin protruding from the operating rod is housed in a second slide groove opened in the middle of the operation lever, and a second lever is housed in the operation lever. The locking part is located on the indoor side of the slide groove, and the case has an internal gear-shaped locked part centered on the support shaft. The operation lever is engaged by the locking part and the locked part. Of the lock lever and the operating lever against the biasing force and pushed in along both slide grooves, the engagement between the locking part and the locked part is released, and the rocking is possible stepwise. Is characterized by.

The case is composed of a case body that covers a surface facing the operating rod, and a lid that covers a surface away from the operating rod. The locked portion may be formed on the case body or the lid. When the locked portion is formed on the lid, if the case body has a size that covers at least the first slide groove of the operation lever, the engagement portion and the locked portion are engaged with each other by the pushing operation of the operation lever. The release function can be secured.

However, in order to secure the swinging function of the operating lever, when the case body is formed to have a size to cover both slide grooves of the operating lever as in the invention of claim 2, the pin swings. It is necessary that a guide groove for ensuring movement is provided in the case body.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 6 and 7, the louver window is constructed so that the left and right ends of a plurality of vertically movable louvers 1 are horizontally supported in a window frame 2 so that all the louvers are movable. The operating rods 3 are respectively connected to the left and right ends of the louver 1 on the indoor side, and the opening / closing device is provided in the notch 5 formed in the middle part of the height of the indoor surface of the window frame vertical frame 4 on one side (the right side in the drawing). 6 is inserted and fixed, the pin P is thrust into the inside of the opening / closing device 6 from the middle portion of the height of the operating rod 3 in the same direction, and the stepwise swinging motion of the opening / closing device 6 is moved from the pin P to the operating rod 3, It is sequentially transmitted to each movable louver 1, and each movable louver 1 is rotated and opened / closed so that the angle can be adjusted.

In the opening / closing device 6 of the present invention, the case 7 is inserted into the notch 5 of the vertical frame 4 of the window frame and screwed, and the operating lever 8 engaging with the pin P protruding from the operating rod 3 is attached to the case 7. From the inside to the inside of the room, the operation lever 8 is urged toward the room to be held so as not to swing, and the operation lever 8 is provided so as to be able to be pushed to the outside of the room against the urging force. Is provided so as to be capable of swinging in stages.

The fixing structure of the case 7 will be described in detail. As shown in FIGS. 1 to 5, the case 7 includes a case main body 9 that covers the operating rod 3 side and a lid 10 that covers the side away from the operating rod 3.
Each of them is a half-moon shaped plate that bulges toward the inside of the room. Cylindrical convex portions 11 are projected toward the lid side above and below the center of the width of the case body 9, and the convex portion 11 is formed on the lid 10. The cylindrical recessed portion 12 is projected to the case body 9 side at a position corresponding to, and the recessed portion 12 is elastically fitted into the protruding portion 11 to be integrated.
Then, screws are passed through the holes 13 of the lid 10 and fixed to the vertical frame 4.

The swing structure of the operating lever 8 will be described in detail. The operation lever 8 is projected toward the room from an arc-shaped opening 14 provided on the indoor surface side of the case 7, and the case body 9
The swinging support shaft 15 of the operation lever 8 is projected to the lid side, the first slide groove 16 is opened in the base portion of the operation lever 8, and the support shaft 15 and the coil spring 17 are housed in the first slide groove 16. A spring 17 urges the operation lever 8 toward the inside of the room, a second slide groove 18 is opened in the middle of the operation lever 8, and the inside of the case body 9 has an arc-shaped centering around a swinging support shaft. The guide groove 19 is formed so as to overlap the base of the second slide groove, and the pin P is inserted from the guide groove 19 into the second slide groove 18. Therefore, the pin P swings along the guide groove 19 as the operating lever 8 swings. Further, the operation lever 8 is formed with a step-like thickness on the indoor side with respect to the second slide groove 18, and a V-shaped locking portion 20 is projected toward the indoor side on the thin portion. on the other hand,
An internal gear-shaped locked portion 21 centering on the support shaft 15 is projected to the lid side at the indoor side edge portion of the case body 9, and the locked portion 21 and the locking portion 20 mesh with each other to move the operation lever 8 Rocking is prevented and the operating lever 8 is urged against the urging force of both slide grooves 16,
When pushed in along 18, the operating lever 8 moves along the support shaft 15 and the pin P along with the contraction of the coil spring 17 to release the meshing, and in this state, it becomes possible to swing in stages.

Further, the operation lever 8 has a knob 22 projecting toward the center of the lateral width of the window frame 2 at the end portion on the indoor side, whereby it is pushed into the outdoor side and easily rocks. It should be noted that recessed scales 23 are formed on the surface of the case body 9 at the indoor side edge portion at equal angles.

[0012]

According to the first aspect of the present invention, without using a worm gear, the biasing force of the coil spring, the engagement between the locking portion and the locked portion, and both slide grooves of the operating lever are utilized to provide the movable louver. Since it can be opened and closed in stages, the structure is simple and inexpensive.

According to the second aspect of the present invention, since the case body is provided with the guide groove for ensuring the swinging of the pin, most of the operation lever is covered with the case body, and the appearance is good.

[Brief description of drawings]

1A and 1B are partially cutaway rear views showing an opening / closing device for a louver window according to the present invention, in which FIG. 1A shows a state in which a locking portion and a locked portion are in mesh with each other; The figure shows the disengaged state.

2A and 2B are a front view and a right side view showing the louver window opening / closing device of the present invention.

3 (a), (b), (c), and (d) are a front view, a rear view, a plan view, and a sectional view taken along the line AA of the case body.

4A and 4B are a front view and a bottom view showing a lid.

5A and 5B are a front view and a bottom view showing an operation lever of FIG.

FIG. 6 is a transverse cross-sectional view showing a mounted state of the louver window opening / closing device.

FIG. 7 is a vertical cross-sectional view showing a mounted state of a louver window opening / closing device.

[Explanation of symbols]

1 Movable louver 3 operating rod 4 vertical frames 6 switchgear P pin 7 cases 8 operation lever 9 Case body 10 lid 15 spindles 16 First slide groove 17 coil spring 18 Second slide groove 19 Guide groove 20 Locking part 21 Locked part

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Claims (2)

(57) [Claims] 1. A movable louver (1) in which a stepwise swing of an operating lever (8) in a vertical direction is sequentially transmitted to an operating rod (3) and a parallel movable louver (1) via a pin (P). In the louver window opening / closing device (6) for adjusting the opening / closing angle of the operation lever, the case (7) attached to the window frame vertical frame (4) has a swing support shaft (15) for the operation lever (8), The coil spring (17) and the support shaft (15) for urging (8) the indoor side are housed in the first slide groove (16) formed in the base of the operation lever (8), and the operation lever ( The second slide groove (18) opened in the middle part of 8) accommodates the pin (P) protruding from the operating rod (3), and the operation lever (8) has a position larger than that of the second slide groove (18). It has a locking part (20) on the indoor side, and the case (7) has a support shaft (15).
Has a locked portion (21) in the shape of an internal gear centered on, and the engagement of the locking portion (20) with the locked portion (21) prevents the operation lever (8) from swinging, While the operation lever (8) is pushed against both the slide grooves (16, 18) against the biasing force, the engagement between the locking portion (20) and the locked portion (21) is released and the operation is stepwise. An opening / closing device for a louver window, which is capable of swinging around. 2. The case (7) comprises a case body (9) covering a surface facing the operating rod (3) and a lid (10) covering a surface away from the operating rod (3). Insert the body (9) into both slide grooves (16, 1) of the operating lever (8).
8. A louver window opening / closing according to claim 1, characterized in that the case body (9) is formed with a size so as to cover 8) and a guide groove (19) for ensuring the swinging of the pin (P) is provided. apparatus.