JPH0443570Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a device for opening and closing windows, etc.
In the invention of this application, windows include not only doors, but also
A broad term that includes any rotating body equipped with a gas spring or other spring that always biases the free end of a shoji that is rotatably pivoted to the frame in the open direction, such as a hatch door in a car. .

(Prior art) Conventionally, as a device for opening a shoji such as a window in this type of window, (a) one end is placed on the frame side of the building,
Using a spring such as a gas spring with the other end attached to the shoji side, the free end of the shoji, which is rotatably attached, is constantly biased in the opening direction by the spring, thereby preventing fires, etc. There is a known structure in which a closed window is opened when the lock is released when necessary.

(b) A bracket is attached above the frame to which the bullet is attached as described above, and a pusher which is constantly biased in the opening direction by a spring is installed on this bracket, and the restoring force of this pusher pushes the shoji in the opening direction. It is known that this was done. Furthermore, (c)
As shown in Japanese Utility Model Application Publication No. 50-138837, there is also known a device which is provided with a bracket, a spring, and a pusher in the same way as in (b) above, without providing a bullet as in (b) above.

(Problem to be solved by the invention) However, according to the above-mentioned conventional example (a), for example, in a concealed type window, a bomb such as a gas spring is attached between the insides of the sash, so the moment of the bullet is The arm becomes smaller. Therefore, unless a special product with a large gas reaction force, which is different from ordinary ammunition, is used, sufficient opening force toward the free end of the window cannot be obtained. Further, if a bomb with a large gas reaction force is used, there is a problem that there is a large resistance when starting to close an open window, and a large force is required to close the window.

According to the conventional example (b), as mentioned above, special brackets, springs, pushers, and other accessories are required for the attachment points of the bullet to the frame or shoji, and between the attachment points. The pusher could not be installed due to reasons such as lack of space to install the pusher or the pusher hitting the projectile.
In other words, the pusher has to be attached above or below the point where the bullet is attached to the frame or shoji, and therefore there is a problem in that the pusher can be attached to a limited position. Furthermore, if there is no space for installing a pusher above or below the attachment point of the ammunition, the pusher cannot be installed. Furthermore, as mentioned above, this device requires many components and has many problems such as troublesome installation work.

According to the conventional example (c), since the shoji is opened only by the biasing force of the pusher without the above-mentioned bullets, the opening force of the shoji is weak.
Moreover, since the tip of the pusher is applied directly to the shoji to open the shoji, there are drawbacks such as damage to the abutting portion of the shoji.

This idea is an attempt to solve these problems, and uses a simple structure to fully exert the biasing force (projection force) of a bullet such as a gas spring without attenuating it, so that it can be used to open windows with a large force. To provide a device that has many advantages such as being able to open the window and closing it with a small force when closing the window, allowing any window to open, not being restricted in the mounting position of the biasing means, and having fewer components. It is something to do.

(Means for Solving the Problems) This invention, as a means for solving the above problems, uses gas that constantly biases the free end side of the shoji, which is rotatably pivoted to the frame side, in the opening direction. In a window equipped with an elastic mechanism such as a spring, a cam that is constantly biased in the direction of opening the shoji is pivotally attached to at least one of the frame-side mounting bracket and the shoji-side mounting bracket for attaching the elastic mechanism, and the cam is pivoted to open the shoji. In some cases, the projecting portion of the cam is configured to open the shoji by pushing the shoji or the frame via a cam abutting plate attached to the shoji or the frame.

(Embodiment) A first embodiment of this invention will be described below with reference to FIGS. 1 to 4.

1 is a shoji that forms a window, 2 is a frame made of sash etc. attached to the opening of a building 3, and shoji 1 is a shoji that forms a window.
It is rotatably attached to the lower end of the housing by a hinge 4, and is configured to open outward as shown in the first figure.

Reference numeral 5 denotes a spring which always urges the free end side of the shoji 1 in the opening direction, and is provided between the shoji 1 and the frame 2. As shown in the embodiment, the concrete structure of this ammunition 5 includes a gas spring that expands and contracts the piston rod 5b by the pressure of high-pressure inert gas sealed in the cylinder 5a, and a compressed gas spring instead of high-pressure inert gas. It is also possible to use a coil spring or some other type of spring. One end (lower end side in the embodiment) of this ammunition 5 is pivotally supported by a pivot 7 such as a bolt or nut to a frame side mounting bracket 6 fixed to the frame 2, and the other end (upper end side in the embodiment) is pivoted to the shoji side mounting bracket 10 fixed to the shoji 1 by the same pivot 7 as described above.

In this embodiment, the frame side mounting bracket 6 has a substantially U-shaped cross section, one side wall 6a is longer than the other side wall 6a, and the one side wall 6a has a protruding portion 11a at its tip. A cam 11 is pivotally mounted on a pivot 12.

This cam 11 is actuated by a spring 13 that always biases the shoji 1 in the opening direction, and when the shoji 1 is opened,
When the lock is released in the closed state of the shoji 1 shown in FIG. The shoji 1 is rotated clockwise as shown in the first figure, and the shoji 1 is opened in the opening direction.

In addition, 15 is a fixing member such as a screw for fixing the frame side mounting bracket 6 and the shoji side mounting bracket 10,
16 is a fixing member such as a screw for fixing the cam backing plate 14 to the shoji 1.

5 to 8 show a second embodiment. In this device, a cam 11 is pivotally supported by a pivot 12 to a shoji side mounting bracket 10 attached to the free end side of a shoji 1, and a protruding portion 11a of this cam 11 is attached to a frame 2 (in the embodiment, a cam backing plate 14). The feature is that the shoji 1 is opened by kicking out the contact portion 14a) of the shoji 1. To explain this in detail in comparison with the first embodiment, the frame-side mounting bracket 6 shown in the first embodiment is reversed 180 degrees and attached to the shoji 1 to form the shoji-side mounting bracket 10, and it also extends from the other side wall 10b. One side wall 10
A cam 11 similarly inverted by 180 degrees is pivotally attached to the tip of a, and a cam backing plate 14 having an abutting part 14a against which the protruding part 11a of the cam 11 comes into contact is fixed to the frame 2. The configuration is similar to that of the first embodiment.

9 to 12 show a third embodiment. Compared to the second embodiment, the shoji-side mounting bracket 10 does not protrude from one side wall 10a for mounting the cam 11, and has approximately the same length as the other side wall 10b. Axis 7 attaching 5
It has a remarkable feature in that it is used for both purposes, and the other configurations are the same as the second embodiment.

13 to 16 show a fourth embodiment.
This embodiment is similar to the third embodiment in that the pivot shaft of the cam 11 is also used by the pivot shaft 7 of the bullet 5. However, the cam 11 is attached to the frame-side mounting bracket 6 at the bottom of the frame 2, and the protruding portion 11a of the cam 11 is applied to the shoji 1 (in the embodiment, the abutting portion 14a of the cam backing plate 14) and is ejected. They differ in some respects.

As mentioned above, as shown in the third and fourth embodiments, if the pivot shaft of the cam 11 is also used as the pivot shaft 7 of the ammunition 5, the number of pivots is not only reduced, but also the assembly work is simplified. There are advantages.

(Modifications, etc.) Note that the shape, mounting position, and number of cams 11 are not limited to those shown in each embodiment. For example, the frame side mounting bracket 6 or the shoji side mounting bracket 10 is The design can be changed as appropriate, such as by extending the structure to the base and attaching it to any desired location, or by attaching one to each of the two 6 and 10.

The shape and mounting position of the frame-side mounting bracket 6 or the shoji-side mounting bracket 10 to which the cam 11 is attached are not limited to those of each embodiment, and the design can be changed as appropriate.

In each embodiment, the frame 2 or the shoji 1 with which the protruding portion 11a of the cam 11 comes into contact has a cam backing plate 14.
A contact portion 14a is provided to protect the aluminum sash and the like in that portion.

Furthermore, in each embodiment, the mounting method of the shoji 1 to the frame 2 is an outward-opening method, but it is not limited to this, and can be applied to other methods such as an inward-opening method, a vertical shaft rotation method, a horizontal shaft rotation method, etc. It is.

(Effect of the invention) According to this invention, at least one of the frame-side mounting bracket and the shoji-side mounting bracket for attaching the bullet,
A cam that is always biased in the opening direction of the shoji is pivotally mounted, and when the shoji is opened, the protruding part of the cam pushes the shoji or the frame through a cam abutment plate attached to the shoji or frame to open the shoji. Since it is configured, it has the following effects.

(1) When the closed (locked) state of the shoji is released when necessary, the protruding part of the cam, which is biased by a spring, pushes the shoji or frame through the cam abutment plate attached to the shoji or frame, and the shoji is closed. In order to open the shoji, the projecting force of the bullet is made more effective than before, and the opening force of the shoji can be significantly increased. Therefore, even when a bullet has a weak reaction force, the window can be opened with a large force by the action of the cam, and the window can be closed with a small force when it is closed. Moreover, since the projecting part of the cam is configured to open the shoji by pushing the shoji or frame through a cam abutting plate attached to the shoji or frame, the projecting part of the cam is different from the conventional example (c). This eliminates drawbacks such as damage to the shoji and frames.

(2) The push-shear of the conventional example (b) mentioned above is attached above or below the point where it is attached to the frame of the bullet or the shoji, and cannot be attached to that point, so the mounting position of the push-shear is There is a problem in that the pusher cannot be attached if there is a restriction on the size of the pusher or if there is no mounting space above or below the attachment point. On the other hand, the cam of the present invention is pivotally attached to the frame-side mounting bracket or the shoji-side mounting bracket, which is the bullet attachment point.
All such problems can be solved.

(3) As mentioned above, the cam of the present invention only needs to be pivoted to the frame-side mounting bracket or the shoji-side mounting bracket for mounting the ammunition, so it can be used only for cams like the conventional examples (b) and (c). No separate brackets or other accessories are required, the installation process is easy, and the number of components can be reduced.

[Brief explanation of the drawing]

Figures 1 to 16 all show embodiments of this invention, and Figure 1 is a longitudinal sectional side view of the first embodiment;
Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a side view of the frame side mounting bracket and cam, Fig. 4 is a bottom view of Fig. 3, Fig. 5 is a vertical sectional side view of the second embodiment, Fig. 6 is a cross-sectional view of Fig. 5, Fig. 7 is a side view of the shoji side mounting bracket and cam, Fig. 8 is a plan view of Fig. 7, and Fig. 9 is a vertical sectional side view of the third embodiment. Figure 10 is a cross-sectional view of Figure 9, Figure 11 is a side view of the shoji side mounting bracket and cam,
12 is a plan view of FIG. 11, FIG. 13 is a longitudinal sectional side view of the fourth embodiment, and FIG. 14 is a cross-sectional view of FIG. 13. FIG. 15 is a side view of the frame-side mounting bracket and the cam, and FIG. 16 is a bottom view of FIG. 5. 1... Shoji, 2... Frame, 5... Bullet, 6... Frame side mounting bracket, 7... Pivot, 10... Shoji side mounting bracket, 11... Cam, 11a... Extrusion part, 12
...Axis, 13...Spring, 14...Cam backing plate.

Claims (1)

[Claims for Utility Model Registration] (1) In a window equipped with an elastic device such as a gas spring that always biases the free end side of a shoji that is rotatably pivoted on the frame side in the opening direction, the elastic device A cam that is always biased in the direction of opening the shoji is pivotally attached to at least one of the frame-side mounting bracket and the shoji-side mounting bracket to which the shoji is attached, and when the shoji is opened, the protruding part of the cam is attached to the shoji or frame. 1. A window opening/closing device characterized in that the window opening/closing device is configured to open a shoji or a frame by pushing the shoji or a frame through a fitted cam plate. (2) The cam is coaxially pivoted to the frame side mounting bracket or the shoji side mounting bracket by a pivot that attaches the bullet.
Window opening/closing device as described in section.