JPS5910289Y2 - Concealed type window stopper for casement windows - Google Patents

Description

[Detailed description of the invention] This invention relates to a window fixing device that fixes a casement window at an arbitrary opening angle. This invention relates to improvements in window locking devices.

A window locking device of this type is already known which allows a casement window to be opened from a fully closed position to a wide opening angle range of about 180 degrees (Japanese Patent Application Laid-Open No. 56-20286).

This device is as shown in FIG. , L3 are refracted to each other, so that the casement window 1 can be opened to a wide opening angle region.

Further, in this device, two gears 3 and 4 that engage with each other are pivotally supported at the tip of the first link L1 in the center, and each gear 3
, 4 and the second and third links L2 and L3 are fixed so as to rotate together, and both links L2 and L3 change their posture while being interlocked via gears 3 and 4. .

Therefore, when the base end of the second link L2 is fixed by the lock lever 5, not only the first link L1 but also the third link L3 are restrained at the same time, and the free swinging of the casement window 1 is prevented.

In this conventional device, when the casement window 1 is closed, the links Ll, L2, L3 are folded in a vertically overlapping state as shown in FIG.

Therefore, compared to other types of window fixing devices, the distance between the lower frame 1a of the casement window 1 and the lower stile 2a of the window frame 2 must be set larger, and the vertical dimensions of the window frame 2 must be set accordingly. There was a disadvantage in growing up.

Another problem is that it requires a large number of components and is expensive.

Further, through the interposition of the gears 3 and 4, the third link L3 and the casement window 1 are connected to a sliding frame 6 fixed to the lower frame 1a of the window 1,
Through the pin 7 attached to the guide groove 6a of this sliding frame 6,
Although they are connected so that they can move relative to each other, there is a drawback that the casement window 1 may sway due to the wind even when the window is locked due to play between the pin 7 and the guide groove 6a and backlash of the gears 3 and 4. Ta.

This invention was proposed in view of this fact, and it is possible to use three
It is possible to open and close the window to the wide aperture area just by linking the book,
Moreover, when the window is closed, each link is compactly accommodated between the lower frame of the window and the lower stile of the window frame.

Hereinafter, embodiments of this invention will be described based on the drawings.

In FIG. 3, a casement window 11 is supported by a vertical stile 13 of a window frame 12 via a hinge 14 so as to be able to open outward.

A window fixing device is provided to fix the casement window 11 in any open position.

The window stop device has first, second, and third links 15 and 16.
．． 17, a sliding frame 18 that supports each of the first and second base ends, a bracket 19 for fixing the third link 17 to the casement window 11, and restraining the bending of each link 15, 16, and 17. It consists of a lock mechanism 20.

The sliding frame 18 is shaped like a shallow groove with a U-shaped cross section that is long from side to side, and the mounting portion 18 is formed by bending both left and right ends into a step shape.
It is shaped like a and is fixed to the lower stile 21 of the window frame 12 with screws.

A guide groove 22 for slidingly guiding the second link 16 is provided over more than half of the plate surface of the groove portion in the left-right direction.

Further, a groove 23 having a small width and length is provided adjacent to the guide groove 22 .

The first, second, and third links 15, 16, and 17 are connected as follows.

First, the proximal end of the first link 15 is slidably attached to the groove 23 using the pin 24.

A second link 1 is attached to the lower surface of the link 15 near the free end.
6, and then link 1 on the free end side.
One end of the third link 17 is positioned on the upper surface of the third link 5, and each is connected with a pin 25, 26.

The other end of the third link 17 is connected to the bracket 19 with a pin 27, and is integrated with the lower frame 28 of the casement window 11.

The base end side of the second link 16 is connected to a guide groove 22 via a lock mechanism 20.

In FIG. 4, the locking mechanism 20 consists of a short shaft 30 having a flange-shaped seat 29 at the lower end, a lock lever 31 for operating the short shaft 30, and a disc spring 32.

The short shaft 30 is attached so as to pass through the disc spring 32, the guide groove 22, and the second link 16 at the same time with the seat 29 located inside the guide groove 22, and protrudes above the second link 16. A lock lever 31 is connected and assembled to the shaft end with a pin 33.

On the outer surface of the proximal end of the lock lever 31, a cam 34 is formed in an arcuate shape for vertically moving the short shaft 30.

The cam 34 is switched between a locked position and an unlocked position by placing the lock lever 31 in either a horizontal position facing left or a horizontal position facing right.

In the window stopper constructed as described above, when the casement window 11 is closed, the base end of the second link 16 moves to the right end as shown in FIG.
are stacked vertically to form a straight line.

When the casement window 11 is pushed open from this state to the outside, the links 15, 16, and 17 follow the casement window 11 while being bent, as shown by imaginary lines in FIG.

When the casement window 11 is fully opened, the first link 1
5 and the third link 17 are bent at right angles, and the second
The link 16 appears to support the first nonch 15 diagonally.

To fix the casement window 11 in any open position, the lock lever 31 is reversed and the base end of the second link 16 is fixed.

Then, the second link 16 will not be able to slide or swing.

At this time, in order for the casement window 11 to swing, the first link 15 only needs to swing around the pin 25, but the base end of the link 15 is connected to the groove 23 by the pin 24, Since the swing locus of the pin 24 about the pin 25 intersects with the groove 23, the first link 25 cannot swing or slide.

As a result, the third link 17 is also restrained, and the casement window 11 is fixed.

As shown in FIG. 6, when the casement window 11 is closed from the fully open position, the first and second links 15 and 16 extend in a straight line even though the window 11 is still in the half-open position.

Then, the center of the hinge 14 and the third non-stop 17 as the seal opens and closes.
The dimensional change between the center of the proximal pin 26 and the first and second
Bending and stretching of links 15 and 16 makes it impossible to absorb.

To deal with this, the proximal end side of the first link 15 is provided with a groove 23.
It is linked to.

In other words, after the first and second links 15.16 extend in a straight line, both links 15.16 move along the guide grooves 22 and 23, and while pulling in the third link 17, the casement window 1
1 close swing is possible.

FIG. 7 shows another embodiment.

This means that both the second and third links 16.17
The pin 24 is connected to the top surface of the tip of the link 15 to reduce the thickness in the vertical direction, and the groove 23 is shaped like an arc, and the pin 24 fits into the end of the groove 23 on the guide groove 22 side. The first link 1 when locking the window is formed with a recess 35 that can be inserted into the window.
5 can be prevented from swinging more reliably.

In the above embodiment, the guide groove 22 and the groove 23 are formed separately, but the grooves 22 and 23 may be formed into a single groove.

Further, the locking mechanism 20 may be of a screw type as disclosed in Japanese Patent Application Laid-Open No. 5620286, and is not limited to the embodiment.

Furthermore, regarding the casement window 11, a glass door, a shutter door,
This does not include any types of shutters, internal shoji screens, or doors combined with external doors, nor does it limit whether they are single or double doors.

As explained above, in this invention, three links 15
, 16. Since the casement window 11 can be opened and closed from the fully closed position to the fully open position in the wide opening angle region using only 17, it is possible to open and close the casement window 11 from the fully closed position to the fully open position in the wide opening angle region. The related parts can be omitted, and the window fixing device can be manufactured at a correspondingly lower cost.

In particular, by reducing the distance between the lower frame 28 of the window 11 and the lower stile 21 of the window frame 12, the vertical dimensions of the window frame 12 can be reduced, and overall costs can be reduced.

In addition, the third link 17 is pivoted to a fixed point on the opening window, and the gear that was required in the past has been omitted, eliminating rattling in the link system. It is possible to eliminate the wobbling of the window 11.

[Brief explanation of drawings]

FIGS. 1 and 2 show a conventional device, with FIG. 1 being a cutaway front view of the main parts when the window is fully open, and FIG. 2 being a cutaway front view of the main parts when the window is fully closed. Figures 3 to 7 show an embodiment of this invention, with Figure 3 being a cutaway view of the main parts when the window is fully open, Figure 4 being a front view of the main parts being cut away when the window is fully closed, and Figure 5. is a cross-sectional view on line ■-V in Fig. 4,
FIG. 6 is a plan view corresponding to FIG. 3 showing the link operation when the window is half open. FIG. 7 is a plan view corresponding to FIG. 3 showing another embodiment of the present invention. 11...casement window, 12...window frame, 13
...12 stiles, 14 ... hinges, 15
...First link, 16...Second link, 17...Third link, 18...Sliding frame, 20... Lock mechanism, 21...1
2 lower stile, 22... guide groove, 23...
Groove, 28...11 lower frame, 31...lock lever, 34...cam.

Claims (1)

[Scope of utility model registration request] The casement window 11 is supported by the vertical stile 13 of the window frame 12 via a hinge 14 so as to swing around a vertical axis, and the lower stile 2 of the window frame 12
A sliding frame 18 is fixed to the sliding frame 18, and the base ends of the first link 15 and the second link 16 are connected to the sliding frame 18 so as to be horizontally swingable and slidable left and right. the second
placed on the side closer to the hinge 14 by link 16, casement window 1
One end of the third link 17 is horizontally swingably pivoted to the lower frame 28 of the first link 17, and the other end of the third link 17 and the free end of the second link 16 are respectively moved closer to the free end of the first link 15. Pivotally attached,
A concealed type window fixing device for a casement window, in which a locking mechanism 20 for fixing the second link 16 in a non-slidable manner is attached to the connecting portion between the second link 16 and the sliding frame 18.