JP2016030946A - Folding-type door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding-type door device having a plurality of panels connected with joints so as to allow the door device to be folded, and preventing the door device from falling and coming into contact with a lower frame.SOLUTION: A folding-type door device has a slider 1 fitted at a bottom edge of a joint member, the slider moving along a guide groove 7 formed on a lower frame 6. The slider 1 pivotally and rotatably supports two guide rollers 3a, 3b on an undersurface of a base plate, and the guide rollers are loosely fit in the guide groove 7. A support roller 4 having a reduced outer diameter is pivotally and rotatably supported between the guide rollers. A support edge 8 is disposed on a corner on one side at a bottom part of the guide groove 7, the support edge allowing an outer periphery of the support roller 4 to come in contact with it when the slider 1 is lowered.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a foldable door device that does not interfere with an opening / closing operation by contacting a lower frame even when the foldable door is lowered.

  Fig. 4 shows an external view of a folding door (folding curtain). (A) shows the case where the folding door is extended and the front is closed. (B) shows that the folding door is folded and the front is opened. Represents the case. The folding door (a) has a plurality of panels (b), (b) ... connected via joints, and an upper frame (c), a lower frame (d), and both vertical frames (e), ( It is attached to a frame body (f) that is framed in (e), and is suspended from the upper frame (c) via suspension wheels (g) attached to the upper end of the folding door (a).

  The front of the foldable door (a) is connected to a handle (chi), and the front door can be opened and closed by expanding and contracting the foldable door (a) by holding the handle (chi). I can do it. Therefore, the folding door (A) is mounted on the front door (N) composed of the frame (F), and the panels (B), (B) ... are the upper frame (C) and the lower frame (D). Appropriate clearance (gap) is provided so that the folding door (a) can be expanded and contracted without contacting it.

  By the way, the foldable door (a) is suspended from the upper frame (c) of the frame (f) via a suspension wheel (g). The lower end of the door (A) may contact the lower frame (D). In addition, in the case of a heavy folding door (a) with many panels (b), (b) ... connected, the upper frame (c) bends over time and the lower end of the folding door (a) May contact the lower frame (d). Furthermore, the frame (f) may be distorted by shaking such as an earthquake, and the lower end of the folding door (a) may come into contact with the lower frame, which may hinder the opening and closing operation.

A slider (le) is provided at the lower end of the joint to which the suspension wheel (g) is attached, and the slider (le) is a guide groove (e) formed in the lower frame (d). Are loosely fitted.
FIG. 5 shows a case where the slider (le) is loosely fitted in the guide groove (e) formed in the lower frame (d). The slider (le) having such a structure cannot prevent the slider (le) from being lowered. For this reason, the folding door is caused by distortion of the frame (f) or deflection of the upper frame (c). If (b) descends, there will be no gap (wa) between the lower frame (d) and the lower end of the folding door (b) will be in contact with the lower frame (d).

"Structure of the door wheel" according to Japanese Utility Model Publication No. 7-35677 is a simple structure with a small number of parts, easy to manufacture and assemble, and easy and stable adjustment of the wheel level from the side of the sliding door It can be done with.
That is, a wheel support rod is provided in the door wheel case, and the wheel is pivotally supported on the wheel support rod to adjust the height of the wheel relative to the door wheel case.

The “sill” according to Japanese Patent Application Laid-Open No. 7-173965 is a sill that becomes a traveling path of a sliding door, and is a sill that can be easily corrected even if the joinery frame is distorted or distorted.
A supporting member is fixed to a structural member or a floor member of a building, and a sliding door receiving material that becomes a traveling path of the sliding door is fitted to the supporting member. At this time, the sliding door receiving material is fitted to the support member so as to be movable in the vertical direction. By rotating a height adjusting screw screwed to the sliding door receiving material, the sliding door receiving material is moved up and down with respect to the support member. Is adjusted.
In addition, the height adjustment screw can be rotated from above with the head buried in the sliding door support, and the height adjustment screw can be easily adjusted. There will be no hindrance to opening and closing.

As described above, various techniques are known in which the height of a sliding door is adjusted by adjusting the height of a wheel or the height of a threshold. However, the adjustment work is troublesome, and in particular, in the case of the folding door targeted by the present invention, the height adjustment of the suspension vehicle on which the folding door is suspended may not be possible.
"Structure of the door-to-door" according to Japanese Utility Model 7-35677 “Threshold” according to Japanese Patent Laid-Open No. 7-173965

  As described above, the conventional folding door device has the above-described problems. The problem to be solved by the present invention is this problem, and when the folding door descends due to distortion of the frame, etc., it is supported by a slider so that the lower end of the folding door does not contact the lower frame. A foldable door device is provided.

  The foldable door device according to the present invention is configured such that the foldable door is suspended from the upper frame via a suspension wheel, and a slider attached to the lower end moves along a guide groove formed in the lower frame. The basic form is the same as the conventional folding door device. By the way, the slider attached to the lower end of the joint of the folding door is provided with a support roller in addition to the guide roller, the outer diameter of the support roller is slightly smaller than the outer diameter of the guide roller, and the length (height) is increased. ing. That is, the support roller extends downward from the guide roller, and when the slider is lowered for some reason, the outer periphery of the support roller contacts the support edge formed at the bottom corner of the guide groove.

The guide roller and the support roller are rotatably attached to a base attached to the joint lower end of the folding door, and the support roller comes into contact with the support edge so that the base does not come into contact with the lower frame ( Clearance) is left. Here, the support edge is provided at one corner of the bottom of the guide groove, so that the support roller in contact with the support edge supports the folding door and can rotate smoothly with the expansion and contraction of the folding door. .
Here, the support roller is pivotally supported between the guide rollers, and both guide rollers rotate in contact with the inner surface of the guide groove, but the support roller having a small outer diameter does not contact the inner surface of the guide groove.

  The slider attached to the lower end of the joint of the folding door includes a support roller in addition to the guide roller. The outer diameter of the support roller is slightly smaller than that of the guide roller, and the length of the support roller is increased, and the support roller extends longer than the guide roller. Therefore, when the foldable door is lowered for some reason, the support roller hits the support edge formed at the corner on one side of the bottom of the guide groove to prevent further lowering of the foldable door.

  Therefore, the base of the slider device does not come into contact with the lower frame due to the lowering of the folding door, and the outer periphery of the support roller rotates against the support edge, so that the opening and closing operation of the folding door can always be performed smoothly. The outer diameter of the support roller is smaller than that of the guide roller. When the support roller is in contact with the support edge, it does not contact the inner surface of the guide groove on the side facing the support edge. There is no hindrance to movement.

It is an Example which shows the slider attached to the folding door apparatus of this invention, (a) is a front view, (b) is a bottom view. When the roller supported by the slider is loosely fitted in the guide groove provided in the lower frame. The support roller supported by the slider descending is in contact with the bottom corner support edge of the guide groove provided in the lower frame. It is an external view of a folding door device, (a) is a case where the folding door is extended and the frontage is closed, (b) is a case where the folding door is folded and the frontage is opened. When the slider attached to the lower end of the joint member of the folding door is loosely fitted in the guide groove.

  FIG. 1 is an embodiment showing a slider 1 attached to a folding door of the present invention, wherein (a) shows a front view and (b) shows a bottom view. In the figure, reference numeral 2 denotes a base, 3a and 3b denote guide rollers, and 4 denotes a support roller. These rollers are pivotally supported on the bottom surface of the base 2 around an axis extending in the vertical direction. Here, the support roller 4 is mounted between the guide rollers 3a and 3b, and the outer diameter of the support roller 4 is slightly smaller than that of the guide rollers 3a and 3b, but the length (height of the support roller 4). ) Is larger than the guide rollers 3a and 3b.

Accordingly, the support roller 4 extends longer than the guide rollers 3a and 3b, and its lower end is positioned below the guide rollers 3a and 3b. Of course, even if the length of the support roller 4 is not longer than that of the guide rollers 3a and 3b, the lower end of the support roller 4 can be positioned below the guide rollers 3a and 3b by lengthening the shaft to which the support roller 4 is attached.
The slider 1 configured as described above is attached to the lower end of the joint member. Therefore, the insertion portion 5 extends upward from the base 2, and the insertion portion 5 is fitted into the hole of the joint member and screwed.

  FIG. 2 shows a case where the slider 1 is attached to the lower end of the joint member of the folding door, and the guide roller 3 and the support roller 4 of the slider 1 are loosely fitted in the guide groove 7 formed in the lower frame 6. Represents. Here, although the specific form of the lower frame 6 is not particularly limited in the present invention, a support edge 8 is provided at the bottom one side corner of the guide groove 7. The support edge 8 is provided at the corner of the bottom, and connects the bottom 9 and the side 10.

  The slider 1 shown in FIG. 2 is a normal position where the folding door is not lowered. For this reason, an appropriate gap 13 is provided between the upper surface 11 of the lower frame 6 and the base lower surface 12 of the slider 1. Even if the slider 1 moves with the expansion and contraction movement of the folding door, it does not contact the lower frame 6. Therefore, the opening / closing operation of the folding door can be performed smoothly.

  However, when the frame is distorted by an earthquake and the upper frame is bent, or when the upper frame is bent over time by hanging a very heavy folding door, it is attached to the lower end of the joint member. The slider 1 is lowered and the gap 13 between the lower frame 6 is reduced. However, the slider 1 of the present invention is configured not to contact the lower frame 6. FIG. 3 shows a case where the slider 1 is lowered and the gap 13 between the lower frame 6 is made small. However, the slider 1 is configured not to contact the upper surface 11 of the lower frame 6.

  That is, both the guide roller 3 and the support roller 4 are loosely fitted in the guide groove 7, but if the slider 1 is lowered, the support roller 4 extending downward from the guide roller 3 is at the bottom corner of the guide groove 7. The slider 1 can be supported in contact with the formed support edge 8. Accordingly, the lower end position of the support roller 4 is set so that the gap between the lower frame 6 and the base 2 of the slider 1 does not become zero.

  By the way, the two guide rollers 3 a and 3 b are loosely fitted in the guide groove 7 formed in the lower frame 6, and the outer diameters of the guide rollers 3 a and 3 b are slightly smaller than the width dimension of the guide groove 7. It has become. Therefore, when the folding door is extended and contracted, the guide rollers 3a and 3b rotate in contact with the inner surface of one side of the guide groove 7. On the other hand, the support roller 4 having a small outer diameter sandwiched between the guide rollers 3a and 3b does not rotate in the normal state of FIG.

  The support roller 4 has an outer diameter smaller than that of the guide roller 3 and therefore does not contact the inner surfaces of the side portions 10 and 10 of the guide groove 7. The slider 1 is provided with two guide rollers 3a and 3b so that the direction of the insertion portion 5 extending upward is fitted in the hole of the joint member and is not changed when it is loosely fitted in the guide groove 7. The support roller 4 attached between the two guide rollers 3 a and 3 b is correctly positioned and loosely fitted in the guide groove 7.

  Then, the slider 1 descends and rotates when the support roller 4 comes into contact with the support edge 8 formed at the bottom corner. Since the support roller 4 attached between the guide rollers 3a and 3b does not contact the inner surface of the side portion facing the support edge 8, the rotation of the support roller 4 is not hindered. That is, even when the slider 1 is lowered and the support roller 4 is in contact with the support edge 8, the folding operation of the folding door can be performed smoothly.

DESCRIPTION OF SYMBOLS 1 Slider 2 Base 3 Guide roller 4 Support roller 5 Insertion part 6 Lower frame 7 Guide groove 8 Support edge 9 Bottom part
10 side
11 Top view
12 Bottom
13 Clearance

Claims (2)

In a folding door device in which a plurality of panels are connected so as to be foldable via a joint, a slider that moves along a guide groove formed in the lower frame is attached to the lower end of the joint member, and the slider is attached to the bottom surface of the base. A plurality of guide rollers are rotatably supported, the guide rollers are loosely fitted in the guide grooves, and a support roller having a reduced outer diameter is rotatably supported between the guide rollers. A foldable door device characterized in that a support edge is provided at one bottom corner of the support so that the outer periphery of the support roller can contact and support when the slider is lowered. The folding door device according to claim 1, wherein two guide rollers are pivotally supported on the base, and a support roller is pivotally supported between the two guide rollers.