JP2547879Y2 - Groove closing device for lower rail - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for closing a groove of a lower rail on which a folding door is guided.

[0002]

2. Description of the Related Art A folding door is formed by connecting a plurality of panels so as to be able to bend and is opened and closed by being suspended from an upper rail. A slider provided at a lower end is loosely fitted in a groove of a lower rail.
Therefore, the slider slides along the groove with the opening and closing of the folding door, and guides the folding door. Therefore, in the state where the folding door is extended and the frontage is closed, the folding door is located on the groove of the lower rail, so that the groove is in the closed state, but if folded and stored, The groove is open.

[0003] The presence of such an open groove on the floor surface not only impedes the opening and closing of the folding door due to the entry of dust and the like, but also the groove itself impedes traffic. Therefore, when the folding door is folded, it is desirable that the above-mentioned opening groove portion be closed. As a prior art, there is known an "opening gap closing device" disclosed in JP-A-3-22498. In this device, a fixed frame (lower rail) and a closing movable frame (groove cover) are connected by a raising / lowering arm (link), and the closing movable frame can be moved up and down by rotation of the raising / lowering arm. In order to use this device, the depth of the lower rail must be increased, so that it is liable to be restricted in construction. In addition, since the link mechanism is used, the structure itself becomes complicated, and the function stability and Leave a problem for maintenance.

[0004]

As described above, the conventional lower rail groove closing device has the above-mentioned problems.
The problems that the present invention seeks to solve are these problems.
Provided is a closing device that has a simple structure, is maintenance-free, and has a stable closing function.

[0005]

The groove closing device of the present invention has the following features in order to solve the above problems. That is, in the groove closing device, a closing body that covers the groove of the lower rail is pivotally mounted on a hinge via a hinge, and has a rotation control body at one end of the closing body. The above-mentioned closing body is detachably attached to the lower rail, and when the door is opened, the groove can be closed by itself, and when the door is closed, the closing body can be opened by itself. To fulfill.

That is, the rotation control body is to open the closing body by engaging with the door frame of the door or a member fixed to the door frame, and to close the closing body by separating from the door frame. To form a continuous guide surface or guide line from the leading edge of the closing body without any step, and the guide surface or the leading end of the guide line extends to the hinge side on which the closing body is pivoted, and at least the surface of the door frame More protruding. Here, the door includes not only a folding door but also a sliding door. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0007]

FIG. 6 shows a general folding door device. The folding door is, as is well known, composed of a plurality of panels 1, 1,.
Are flexibly connected via joints 2, 2,.
The rail is suspended from the upper rail 3 via a traveling tool (not shown), and the lower end is guided by the lower rail 4. A door frame 5 is provided at the tip of the folding door, and a hanging frame 6 is provided at the hanging side. By pressing the door frame 5 toward the hanging side, each panel 1,
Are stored in a folded state.

FIG. 1 shows a specific example of the groove closing device of the present invention, which is attached to the lower rail 4 and closes the groove 7 of the lower rail 4. The figure shows a state in which the folding door is folded. In this case, the closing body 8 of the lower rail 4 closes the groove 7, and when the folding door is extended, the closing body 8 stands up to open the groove 7, and the folding door is opened. The slider 9 slides along the groove 7. The closing body 8 is a plate-like body having a predetermined width.
Can be opened and closed via a hinge 11, and the receiver 10 is detachably attached to the lower rail 4 by screws. The lower rail 4 includes the outer member 12 and the inner member 1.
3, the inner member 13 is inserted into the outer member 12 having a substantially U-shaped cross section and welded via an edge member 14 having an L-shaped cross section. The receiver 10 is screwed to one side of the inner member 13. Thus, the groove 7 is formed. The closing body 8 covers the groove 7 and the receiver 10 in a closed state, and the leading edge 15 thereof
3 supported by the upper piece.

A rotation control body 16 is attached to one end of the closing body 8 (the side of the folded door).
Reference numeral 6 denotes a closing body 8 which engages with and disengages from the door frame 5 of the folding door.
Open and close. The rotation control body 16 is a kind of block body, and its tip 17 is higher than the closing body 8 and located on the hinge 11 side.
Moreover, it protrudes from the surface 18 of the door frame 5. Tip 1
7 to the starting point 21 through the bending point 19
0 is formed, and the corner 22 of the door frame 5 moves along the guide line 20, and raises the closing body 8 to open the groove 7 with the movement. Therefore, it is preferable that the guide line 20 is formed with a smooth curve from the tip end 17 to the starting point 21, and it is not necessary to form the bending point 19 like the rotation control body 16 shown in FIG. Further, a guide surface may be formed instead of the guide wire 20 so as to make a line contact without making a point contact with the corner 22. And the rotation control body 1
The starting point 21 of 6 is continuous with the leading edge 15 of the closing body 8 without any step.

Here, the rotation control body 16 forms a block body and is screwed to an end of the closing body 8, but it may be formed of a plate-like molded body. May be formed to form the guide wire 20. Although the specific shape of the guide wire 20 is not limited, the guide wire 20 is a line that is higher than the closing body 8 and is formed so as to continue from the position of the leading end 17 protruding from the surface 18 of the door frame 5 to the leading edge 15 of the closing body 8. .

FIG. 2 is a diagram showing FIG. 1 in a three-dimensional view. In a state where the folding door is completely folded, the door frame 5 separates from the rotation control body 16, and as a result, The closing body 8 falls down and closes the groove 7. Figure 3 shows the door frame 5
Slightly moves after contacting the rotation control body 16, and as a result, the closing body 8 is in a slightly upright position. When the corner 22 of the door frame 5 comes into contact with the guide line 20, the component of the pressing force becomes a moment about the hinge axis, and the closing body 8 stands up.

FIG. 4 shows a case where the door frame 5 is further moved.
The door frame 5 reaches the closing body 8 beyond the rotation control body 16,
The slider 9 attached to the lower end of the door frame 5 moves along the groove 7 completely opened. In this case, the upright closing body 8
Is not perpendicular to the lower rail 4 but is inclined with the leading edge 15 being supported by the folding door. Therefore, if the folding door is folded and stored, the door frame 5 separates from the rotation control body 16, and at the same time, the closing body 8 naturally falls down and closes the groove 7.

5a to 5c show the closing body 8 and the rotation control body 16.
3A is a cross-sectional view showing the movement of FIG.
And c corresponds to FIG. As mentioned above,
The groove closing device of the lower rail of the present invention is provided with a closing body for opening and closing the groove, and a rotation control body is provided at an end thereof so as to be able to engage with the door frame of the door. Effects can be obtained.

[0014]

The closing device according to the present invention comprises a closing body provided with a rotation control body at an end thereof, which is rotatably mounted on a shaft. The door frame of the door is engaged with the rotation control body. Then, the closing body is raised and the door frame is separated from the rotation control body, so that the groove can be closed by naturally falling down. In this way, the structure of the closing device is quite simplified, its operation is stabilized by the movement of the door, and no special maintenance is required.

[Brief description of the drawings]

1 shows an embodiment of the groove closing device of the present invention, wherein a is a plan view, b is a front view, and c is a cross-sectional view.

FIG. 2 shows a state before a door frame of a folding door comes into contact with a rotation control body.

FIG. 3 shows a state in which a door frame of a folding door is in contact with a rotation control body, and a closing body is slightly raised.

FIG. 4 shows a state in which the closing body is completely erected and the groove is opened.

FIG. 5 shows the movement of the rotation control body and the closing body.

FIG. 6 is a front view of a general folding door device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Joint 3 Upper rail 4 Lower rail 5 Door frame 6 Hanging frame 7 Groove 8 Closure 9 Slider 10 Receiver 11 Hinge 12 Outer member 13 Inner member 14 Edge material 15 Front edge 16 Rotation control body 17 Front 18 Surface 19 Bending point 20 Guide line 21 Starting point 22 angle

Claims (1)

(57) [Scope of request for utility model registration] 1. A groove portion of a lower rail to which a door is guided at the time of opening and closing, wherein a closing member for covering the groove portion is pivotally mounted on a hinge via a hinge, and a door is provided at an end of the closing member. A turning control body is provided for engaging the door frame of the door to elevate the closing body and open the groove, and the turning control body forms a guide line or guide surface that is continuous without any step from the leading edge of the closing body. Forming
A groove closing device for a lower rail, wherein the guide wire or the guide surface has a tip higher than the closing body and formed at a position further protruding from the surface of the door frame.