JPH08210006A - Opening retaining device for casement window or the like - Google Patents

Abstract

PURPOSE: To provide an opening retaining device for retaining the opening of a shoji (a Japanese paper-sliding door) by a frictional resistance force which is housed in a narrow clearance between a window frame and the shoji and also by which a large frictional resistance can be securely obtained. CONSTITUTION: A recessed groove 8 is formed in the guide rail 5 to be fitted to a window frame in a dovetail shape in such a way that both the side surfaces 9, 9 thereof are inclined and the width of the opening 10 is narrowed than the width in the upper part of the recessed groove, and a slider 11 which is provided with the similar inclined surfaces as the inclined both side surfaces 9, 9 and which is formed in a wedge shape is slidably engaged inside the recessed groove 8 of the guide rail 5. The slider 11 and a supporting member 13 that is abutted on the opened surface of the recessed groove 8 in the guide rail 5 are connected by a set screw 14. An arm 7 is turnably connected by a supporting pin 19 that has been penetrated through the supporting member 13 and the slider 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening window or the like which is attached to hold the opened state at a required opening degree by adding resistance to opening and closing of a shoji screen provided in a rotary type window, a sliding window or the like. Of the open holding device.

[0002]

2. Description of the Related Art Generally, a device of this type has a guide rail fixed to the surface of the upper frame of the window frame facing the shoji, and the tip of an arm rotatably and slidably mounted on the guide rail is mounted on the upper frame of the shoji. It is rotatably attached to the upper surface of the arm, and a means for generating frictional resistance is provided at the connecting part of the arm with the guide rail, and depending on the resistance to the shoji, the shoji can be held in the open position without wobbling. You can
In addition, the safety of the breakage is maintained so that the shoji can be gently closed without being suddenly closed when being swung by a strong gust.

As means for generating the above-mentioned frictional resistance, a slider having an arm connected to it is engaged in the groove of the guide rail, and a part of the slider is provided with a swelling portion by screw adjustment. To obtain frictional resistance on the upper surface or both side surfaces thereof, which is disclosed in Japanese Utility Model Publication No. 4-8213 and Japanese Utility Model Publication No. 4-54291. In the former publication, a part of the upper surface of the slider engaged with the guide rail is pushed up by a screw and pressed against the upper surface of the groove of the guide rail.
In the latter publication, a wedge-shaped fitting member is inserted and held by a screw in a through hole provided in the slider, and the fitting member forms an enlarged portion on both side surfaces of the slider and press-contacts both side surfaces of the guide rail. To do.

[0004]

The groove of the guide rail has an open lower surface, the slider engaged with the groove is naturally smaller than the cross-sectional area of the groove, and the slider is protruded from the groove opening of the slider. Since the arm is attached to the portion to be mounted, the weight of the arm and the weight of the slider itself are always added to the slider described in each publication in the hanging direction. In addition, the guide rail is thin and compact because the space between the upper frame of the window frame and the upper frame of the shoji is narrow, which reduces the area of the pressure contact portion due to the expanded portion of the slider. In addition, since the drooping force is applied as described above, a large frictional resistance cannot be obtained, and there is a problem that a large-sized window cannot provide sufficient resistance to a shoji with a heavy weight.

The present invention is to solve the above problems, and a large slide resistance is obtained, and the weight of the slider itself acting in the hanging direction acts as the slide resistance.

[0006]

According to the present invention, a slider is slidably provided along a guide rail,
A fixing tool is rotatably attached to the other end of the arm so that the slidability of the arm with respect to the guide rail can be resisted and restrained. One of the guide rail and the fixing tool is a window frame and the other is the other. In open holding devices such as open windows that are fixed to shoji screens, a groove is formed in the guide rail in a dovetail shape in which both side surfaces are inclined and the opening width is narrower than the upper width of the groove. Inside, slidably engaged sliders formed in a wedge shape with the same slopes as both side surfaces,
The slider and a supporting member that comes into contact with the opening surface of the groove of the guide rail are connected by a set screw, and the arm is rotatably connected by a supporting pin that penetrates the supporting member and the slider. And

It is preferable that the support pin is rotatably fitted to the arm, communicates with the slider and the support member, and is inserted into a through hole having a diameter larger than that of the support pin.

[0008]

With the above construction, the slider formed in a wedge shape by tightening the set screw is provided on the opening side of the concave groove,
That is, the sliding resistance increases as the slider is pulled downward and the slider is pulled downward, and since the weight of the slider, the support member, and the like also acts downward, this weight also acts as a sliding resistance force. Even if the contact surface between the groove and the groove is worn, the slider descends correspondingly, and it is possible to maintain almost a predetermined resistance force.

Further, if the support pin is inserted into a through hole which is communicated with the slider and the support member and has a diameter larger than that of the support pin, the sliding surfaces of the slider and the concave groove are greatly worn, and To correct it, the set screw is tightened to lower the slider.At that time, since the support pin is rotatably fixed to the arm, the support pin has a support height irrespective of the lowering of the slider due to the rigidity of the arm. Therefore, the arm does not interfere with the shoji in a narrow space between the upper frame and the upper frame, normal operation is always obtained, and the device can be downsized. Like

[0010]

EXAMPLES The present invention will be specifically described. As shown in FIG. 6, in an open window in which a shoji 2 is attached to a window frame 1 by a hinge 25, the upper frame 3 of the window frame 1 and the shoji 2 are This device is provided between the frames 4, and a guide rail 5 of the device is fixed to a surface of the upper frame 3 facing the upper frame 4 along the longitudinal direction of the upper frame 3, and a fixture is provided on the upper surface of the upper frame 4. 6 fixed, guide rail 5
The fixing tool 6 and the fixing tool 6 are connected by an arm 7, and a means for generating frictional resistance is interposed between the guide rail 5 and the arm 7.

To explain this device in more detail, as shown in FIG. 1, a groove 8 is provided in the guide rail 5 along the longitudinal direction with the lower surface of the guide rail 5 open.
Moreover, both side surfaces 9, 9 of the concave groove 8 are formed so as to be inclined from the upper portion to the opening 10 so that the width of the opening is narrower than the width of the upper portion, so-called dovetail shape.

A slider 11 is slidably engaged in the guide rail 5. As shown in FIG. 2, the slider 11 is formed in a wedge shape having a trapezoidal cross section.
Both slopes 12, 12 are inclined at the same angle as the side faces 9, 9 of the groove 8. Further, the support member 13 sliding along the lower surface of the guide rail 5 is in contact with the support member 13 in a state of straddling the opening 10 of the concave groove 8, and the set screw 14 is provided.
It is provided in combination with the slider 11.

The support member 13, as shown in FIG.
It has a length almost the same as that of the slider 11 and has a thick portion 1
5 and a thin portion 16, and the thick portion 15 has the set screw 1
4 is inserted and screwed into a nut 17 which is embedded in the upper surface of the slider 11 so as not to rotate. Further, a through hole 18 communicating with the thin portion 16 of the support member 13 and a portion of the slider 11 opposed to the thin portion 16 is formed, and a support pin rotatably erected at the base end portion of the arm 7. 19 is inserted through the through hole 18 and connected.

The support pin 19 has a large diameter portion 20 and a small diameter portion 2.
1, the small-diameter portion 21 is inserted into the arm 7 and the lower end thereof is caulked to form the receiving portion 22, and the large-diameter portion 2 is attached.
0 is inserted into the through hole 18, but the large diameter portion 20 is
And has a head 23 formed on the upper end of the large-diameter portion 20. Moreover, the head 23 is housed in the recess 24 provided in the slider 11.

The fixture 6 is a strip-shaped plate having a hat-shaped cross section, and the tip of the arm 7 is rotatably connected to the raised portion by a pin, and both ends of the fixture 6 are attached to the upper frame 4 of the shoji 2. It is to be screwed on the upper surface.

The fixture 6 may be attached to the upper frame 3 of the window frame 1 and the guide rail 5 may be fixed to the upper frame 4 of the shoji 2.

With the above-described structure, the degree of pressure contact between both slopes 12 and 12 of the slider 11 and both side surfaces 9 and 9 of the groove 8 can be adjusted by adjusting the tightening amount of the set screw 14. , Which can give the necessary frictional resistance there.

The guide rail 5 is made of aluminum, and the slider 11 is made of polyacetal resin or ABS resin. Further, it is best that the inclination angles of both side surfaces 9 of the groove 8 and both slopes 12 of the slider 11 are about 60 ° ± 5 °. In the case of 60 °, a force P equivalent to the load P of the slider is applied to both slopes of the slider, and the frictional resistance F acting on both sides of the groove is F = 2 μP (μ is the friction coefficient), and the load of the slider is Even if it is made small, a friction resistance as large as twice the load can be obtained.

[0019]

According to the opening holding device of the present invention such as an opening window, the guide rail is provided with a dovetail-shaped concave groove, and a wedge-shaped slider is slidably provided in the concave groove and abuts against the guide rail. A support member is connected to a slider with a set screw, and by tightening the set screw, the slider is attracted to the opening side of the concave groove, and frictional resistance is generated there. By
Since the weight of the slider, etc. also acts toward the opening side, in addition to the tightening force of the set screw, the weight of the slider, etc. is also taken into consideration, and since the friction surface is inclined, it is a thin guide rail. However, in combination with the fact that the friction surface can be formed large, a large friction resistance can be obtained. Further, even if wear occurs on the friction surface, the slider descends accordingly, so even if the wear is slight, the friction resistance force that was initially adjusted is almost the same, and the open shoji can be held securely at that position. .

Further, an arm connected to the guide rail side is
Since the support pin is rotatably connected to the support pin that is inserted through the through hole that communicates with the support member and the slider, the pressing force applied to the arm when the shoji is opened and closed is received by the support member and the slider. The slider slides integrally while maintaining its combined state, and the set screw does not loosen or conversely tighten due to the pressing of the arm, and it securely holds the tightening force set at the beginning. is there.

Moreover, if the inner diameter of the through hole is formed larger than the outer diameter of the support pin, the support pin stands up due to the rigidity of the arm, and even if the slider is lowered by the set screw, Since the support pin is not lowered, the support pin is not lowered even if the slider is adjusted to be lowered by the set screw, and therefore the arm is not lowered along with the slider. Even if the upper frame of the shoji is narrow, the arm does not contact the upper frame, and the friction resistance can be adjusted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an opening holding device such as a casement window according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4 is a plan view showing a state in which the present apparatus is attached to a window.

FIG. 5 is a vertical cross-sectional view showing a state in which the present apparatus is attached to a window.

FIG. 6 is a perspective view showing an outline of the present apparatus attached to a window.

[Explanation of symbols]

 1 Window Frame 2 Shoji 5 Guide Rail 6 Fixture 7 Arm 8 Recessed Groove 9 Side of Recessed Groove 10 Opening Port 11 Slider 12 Slider Slope 13 Supporting Member 14 Set Screw 18 Through Hole 19 Support Pin

Claims (2)

[Claims] 1. An arm (7) along a guide rail (5).
Is slidably provided, and a fixing tool (6) is rotatably attached to the other end of the arm (7) so that the slidability of the arm (7) with respect to the guide rail (5) can be suppressed and suppressed. A guide rail (5) and a fixture (6), one of which is fixed to a window frame (1) and the other to a shoji (2). The concave groove (8) is provided with an opening (1
0) is formed in the shape of a dovetail groove having a width narrower than the upper width of the concave groove (8), and inside the concave groove (8) of the guide rail (5), slopes (12) similar to both side surfaces (9, 9) are formed. , 12), which are slidably engaged with each other and slidably engage with each other, and contact the slider (11) and the opening (10) of the groove (8) in the guide rail (5). Supporting member (1
3) is connected by a set screw (14), and the arm (7) is rotatably connected by a support pin (19) penetrating the support member (13) and the slider (11). A device that keeps open doors and other features. 2. The support pin (19) is an arm (7).
It is rotatably fitted in the slider (11)
And the support member (13), and a support pin (19)
The open holding device for a casement window according to claim 1, wherein the open holding device is inserted through a through hole (18) having a larger diameter.