JPS5910311Y2 - Shoji removal prevention device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a slip-off prevention device for a shoji of a type in which an upper stile is fitted into a groove-shaped sash upper frame.

Conventionally, a device for preventing the shoji from coming off is generally known to have a structure in which a stopper piece having an elongated hole is attached to the vertical or upper stile of the shoji so that it can be moved vertically by inserting a screw through the elongated hole. However, there were drawbacks such as the screws loosening and rendering them useless as a retainer, and furthermore, it was troublesome to adjust the retainer.

The retaining device of the present invention eliminates the drawbacks of the conventional device, and embodiments thereof will be described below with reference to the drawings.

In Fig. 1, the upper frame a of the sash extends from the upper wall b to the outer wall C,
It is an extension of the intermediate wall d and the inner wall e, and the upper end of the outer shoji A, which is a fitting groove f between the outer wall C and the intermediate wall d, is inserted into the fitting groove g between the intermediate wall d and the inner wall e. The upper end portions of the shoji A' are respectively fitted, and the device 1 is installed in a groove having a U-shaped cross section in the upper sash B of the outer shoji A.

The retaining device 1 is generally provided at both left and right ends of the upper slat B.
Individually installed.

The structure of the retaining device 1 is as follows.

In Figures 2, 3, and 4, a substantially cubic body 2 is fitted and fixed in the groove of the upper force gusset B, and the body 2 has an opening on its indoor side surface and extending toward the outdoors. A horizontal guide hole 3 with a rectangular cross section is provided, and a vertical guide hole 4 with a rectangular cross section is provided which opens in the upper surface of the body, extends downward, and communicates with the middle part of the horizontal guide hole 3 at right angles. A cam rod 5 with a rectangular cross section is slidably inserted into the horizontal guide hole 3, and a stopper rod 6 with a rectangular cross section is inserted into the other vertical guide hole 4, respectively.

The cam rod 5 has its indoor end protruding toward the indoor side from a hole C made in the upper stile B, and has a cam surface 7 formed at the tip of the cam rod that is inclined at an angle of about 45 degrees from the lower side to the upper surface. can be,
Also, the lower end of the retaining rod 6 corresponds to the cam surface 7 and has a diameter of about 45 mm.
The cam surface 7 pushes up the retaining rod 6 as the cam rod 5 moves toward the outdoors, and as the cam rod 5 moves toward the indoors. , the retraction of the cam surface 7 causes the retaining rod 6 to descend under its own weight.

Reference numeral 9 denotes a through hole extending in the longitudinal direction at an appropriate length in the middle portion of the cam rod 5, and a retaining pin 10 is slidably inserted through the elongated hole 9 through the body 2.

In this case, the elongated hole 9 is desirably long enough to allow the cam surface 7 to move from directly below the vertical guide hole 4 to a position where it passes through the vertical guide hole 4.

Reference numeral 11 denotes a long through hole provided in the middle of the retaining rod 6, into which a retaining pin 12 is slidably inserted through the body 2.

Reference numeral 13 denotes a stop ball, and a small hole 14 opening into the horizontal guide hole 3 and facing the cam rod 5 is provided inside the body 2, and the stop ball 13 is inserted into the small hole 14 and is always held by a spring 15. The cam rod 5 is fired, while the cam rod 5
Shallow recessed holes 16 and 17 are provided at positions where the cam rod comes into pressure contact with the stop ball 13 when the cam rod moves forward and backward, thereby preventing the elastic temporary fixing mechanism of the cam rod.

At the indoor end of the cam rod 5, there is a passive surface 18 inclined in an arc shape.
A passive part 19 is provided protrudingly directed toward the indoor side, and when the cam rod 5 is retracted to the indoor side as shown in FIG. The positional relationship is such that the passive surface 18 is pushed by the return D and the cam rod 5 is advanced.

20 is a steady rest piece protruding from the body 2.

The operation of this device will be explained next.

The cam rod 5 is pulled toward the indoor side and retreated as shown in the third and fourth figures, and the retaining rod 6 is accordingly lowered by its own weight.

In this state, the outer shoji A is built into the frame, and the upper sash B is fitted into the fitting groove f of the upper frame a.

Then, once the inner shoji A' is opened and closed, the smoke return D pushes the passive surface 18 of the cam rod to advance the cam rod 5 toward the outdoors, thereby pushing up the retaining rod 6.

In this case, the distance between the upper end of the retaining rod 6 and the upper surface of the fitting groove f is set to be smaller than the depth of insertion of the 1,000-inch rail.

Of course, the cam rod may also be operated by hand.

When the retaining rod 6 is pushed up as described above, even if the outer shoji A is lifted, the upper end of the retaining rod 6 hits the upper surface of the fitting groove f to prevent the outer shoji A from coming off.

The elastic temporary fixing mechanism of the cam rod 5 is not limited to the above example,
It is also possible to have a structure in which a leaf spring is brought into pressure contact with the cam rod 5.Moreover, mohair or the like may be adhered to the sliding surfaces of the cam rod 5 and the horizontal guide hole 3, or the cam rod 5 and the guide hole 3 may be tightly fitted. It is also possible to use a friction temporary fixing mechanism in which the friction between the two is increased.

According to the shoji removal prevention device of this invention, unlike conventional devices, there is no fear that the screws will loosen and the shoji will not be able to perform the removal prevention function, and it can reliably prevent the shoji from coming off, and The locking member can be advanced by simply pushing the cam member, which is extremely convenient in terms of operation.

In addition, since the locking device is attached to the upper stile of the shoji, the number and mounting position can be selected and designed as desired.
Furthermore, since the device is configured to operate when the passive surface of the cam member hits the chimney return of the mating sash of the inner shoji, either the outer shoji or the inner shoji can be closed without completely closing the shoji. Alternatively, the device can be operated simply by moving the shoji to confirm that it is installed, and therefore accidents of falling shoji during construction or during erecting of the shoji can be sufficiently prevented.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is a vertical sectional view of a part of the sash to which the retaining device is attached, FIG. 2 is a perspective view of the retaining device, and FIG. 3 is a cross-sectional view of FIG. FIG. 4 is a sectional view taken along the line IV--IV in FIG. 3. 2...Body, 3...Side guide hole, 4
...Vertical guide hole, 5...Cam rod, 6...
... Removal prevention rod, 7 ... Inclined cam surface, 18
...Passive surface, a...Top frame, f...
・・Outer shoji fitting groove, g・・・・Inner shoji fitting groove, A・
...Outer shoji, A'...Inner shoji, B...
・Upper Kamachi, D・・・・・・Smoke return.

Claims (1)

[Scope of Claim for Utility Model Registration] In a sash in which the upper sash of an inner shoji and an outer shoji are respectively fitted into the inner shoji fitting groove and the outer shoji fitting groove of the upper sash, a body fixed to the upper sash of the outer shoji is fixed to the inner side of the body. A horizontal guide hole that opens on the side and extends toward the outdoors;
A vertical guide hole is provided which opens on the upper surface of the body and extends downward and communicates with the middle part of the horizontal guide hole, a retaining member is slidably inserted into the vertical guide hole, and a cam is inserted into the horizontal guide hole. The member is slidably inserted, and the cam member has an inclined cam surface at its outdoor end to raise and lower the retaining member, and has a passive surface facing the indoor side at its indoor end. The passive surface is in a positional relationship such that when the inner shoji is opened or closed while the cam member is retracting toward the indoor side, the cam member is pushed by the chimney return and advances the cam member.