JPS603910Y2 - Folding door bearing device - Google Patents

Description

[Detailed explanation of the invention] This invention involves pivoting the top and bottom of one door to bearing pieces attached to a guide rail, and folding and expanding the rollers attached to the top and bottom of the other door while moving them along the guide rail. Regarding a bearing device for a folding door that opens and closes an opening in a building, the present invention aims to provide a bearing device that can be easily attached to and removed from a guide rail and that can cushion the roller when the folding door is opened. be.

Figure 1 illustrates the outline of a folding door, in which guide rails 2, 2 are installed above and below an opening 1 in a building, and a door 4 is connected with a hinge 3.
, 5, a pin 6.6 protruding upward and downward at one end of one door 4.
are pivotally connected to bearing devices 7, 7 fixed to the guide rail, and rollers 8, 8 protruding above and below the other door 5 are connected to the guide rail 2,
The handle 9 attached to the door 5 is engaged with the groove of 2.
This opens and closes the doors 4 and 5.

At this time, the pins 6.6 fit into the holes of the bearing devices 7, 7 and rotate, and the rollers 8, 8 move along the grooves of the guide rail 2.

The present invention relates to a bearing device for pivotally supporting the pin 6.6 in a folding door constructed as described above.

Since the upper and lower bearing devices are vertically symmetrical, the lower bearing device will be explained next.

The bearing piece 10 constituting the bearing device is made of synthetic resin.
- It is formed as shown in Figure 4.

2 is a perspective view of the bearing piece 10, FIG. 3 is a side view, and FIG. 4 is a sectional view taken along line XX in FIG. 3.

The bearing piece 10 has a hole 1"1 formed in the upper surface of one end to fit and support the pin 6, and the other end forms an upper piece 12 and a lower piece 13, with a gap 14 in between. do.

One side of the gap 14 is partially closed by a side piece 15.

The upper piece 12 has a screw insertion hole 16, and the lower piece 13 has a screw insertion hole 17.

The ends of the upper piece 12 and the lower piece 13 are connected by a connecting part 18, and the intermediate parts of the cuts 19 and 19 formed on both sides of the connecting part 18 protrude outward, forming an elastic piece 20. are doing.

Reference numerals 21 and 22 are hollow holes bored near the ends of the upper piece 12 and the lower piece 13, respectively, for weight reduction and material saving.

FIG. 5 is a perspective view of a nut piece 23 for fixing the bearing piece 10 to the guide rail 2 and a machine screw 24 that is inserted through the holes 16, 17 of the bearing piece 10 and screwed into the nut piece.

The nut piece 23 is a long rectangular metal plate with both side edges bent upward so that sharp corners 23a protrude upward, and a screw hole 25 into which a machine screw 24 is screwed is formed in the center.

The width of the nut piece 23 is not larger than the width of the bearing piece 10;
The width of the bearing piece 10 is made large enough to be inserted into the groove of the guide rail 2.

To attach the bearing piece 10 to the guide rail 2, use the machine screw 24.
through the insertion hole 16 of the upper piece 12 of the bearing piece 10, and
The lower end is screwed into the screw hole 25 of the nut piece 23, inserted into the screw insertion hole 17 of the lower piece 13, and the lower end is inserted into the bottom surface 2a of the guide rail.
(FIG. 6), put the nut piece 23 in the state shown in A in FIG. 4, and insert the bearing piece 10 into the groove of the guide rail 2 with the side with the hole 11 closer to the end of the rail 2.

Next, when the screwdriver is used to turn the machine screw 24 into the nut piece 23 (right-handed thread in this case), the nut piece 23 first rotates to the position B in FIG. It is supported by 15 and becomes unable to rotate.

If the machine screw 24 is continued to be twisted, the nut piece 23 will rise along the machine screw 24 and come into contact with the bottom of the inner folded edge 2b forming the groove of the guide rail 2, as shown in FIG.

At this time, the machine screw 24 has a length such that it comes into contact with the bottom surface 2a of the guide rail 2 and the head 24a comes into contact with the top surface of the bearing piece 10.

Therefore, when the machine screw 24 continues to be twisted, the nut piece 23 is supported by the machine screw 24 and is strongly pressed against the folded edge 2b from below, and the sharp corner 23a bites into the folded edge 2b, causing the length of the guide rail to be extended. It becomes difficult to move in any direction.

The bearing piece 10 is held down by the head 24a of the machine screw 24 so that it does not move within the groove.

In this state, the elastic piece 20 is attached so as to face toward the center of the rail 2 (the right side in FIG. 1).

Once the bearing piece 10 is attached to the guide rail 2 in this way, if the pin 6 attached to the door 4 is fitted into the hole 11,
The door 4 is rotatably supported around the hole 11.

FIG. 7 shows the support 26 of the pin 6.

The threaded portion 6a formed on the pin 6 is inserted into the threaded hole 27 of the support body 26.
Adjust the protruding length of the pin with the locking nut 28 to fix it, and as shown in FIG. It is something to be installed.

To remove the bearing piece 10 from the guide rail 2, use the machine screw 24.
To install the bearing piece 10, simply twist the nut piece 23 in the opposite direction and lower the nut piece 23. When the nut piece 23 separates from the folded edge 2b, it will be in the state shown in FIG. It can be taken out from the groove.

The pins, bearing pieces, etc. at the top of the door have the same structure as the bottom,
It is attached to the upper guide rail 2 with the upper and lower bearing pieces etc. reversed.

FIG. 9 shows the roller 8 attached to the lower part of the door 5.

The same roller 8 at the top can also be used.

In the folding door bearing device of the present invention, as described above, the nut piece 23 is pressed against the inner folded edge of the guide rail by twisting the machine screw 24, and can be removed by rotating the machine screw 24 in the opposite direction. The structure is simple, the number of parts is small, and the folding door can be easily installed and removed.

Further, when the folding door is opened, the roller 8 is moved to the bearing piece 10.
Because the folding door contacts the elastic piece 20 of the folding door, when the folding door is opened forcefully (a folding door equipped with a spring to prevent flapping is opened to a certain extent, it will open naturally and forcefully).

) However, the roller 8 is held loosely, so that the roller 8 is not damaged or makes an unpleasant sound when released.

[Brief explanation of the drawing]

Figure 1 is a front view illustrating the outline of the folding door, Figure 2 is a perspective view of the bearing piece, Figure 3 is a side view of the bearing piece, Figure 4 is a sectional view taken along line XX in Figure 3, and Figure 5. is a perspective view of a nut piece and a small screw,
Figure 6 is a sectional view taken along the Y-Y line in Figure 1 showing how the bearing piece is installed, Figure 7 is a side view of the pin support, and Figure 8 is a diagram showing the pin installed in the door. Sectional view similar to Figure 6, No. 9
The figure is a ZZ sectional view of FIG. 1 showing the guide roller. 6: Pin, 7: Bearing device, 10: Bearing piece, 11: Hole, 1
2: Top piece, 13: Bottom piece, 14: Gap, 15: Side piece, 16
, 17: Screw insertion hole, 18: Connecting part, 20: Elastic piece, 2
3: Nut piece, 24: Machine screw, 25: Screw hole.

Claims (1)

[Scope of utility model registration request] A hole 11 into which the pin 6 is fitted is formed on the upper surface of one end, and an upper piece 12 and a lower piece 13 are formed on the other end, and a gap 14 is formed between them, and one side of the gap is a side. Close up a part with piece 15,
The upper piece 12 has a screw insertion hole 16, the lower piece 13 has a screw insertion hole 17, and the width of the bearing piece 10 is not larger than the width of the groove of the guide seal. Machine screws 24 having the same height and a long plate shape with a width not larger than the width of the gap 14 and a length larger than the width of the gap 14, with the side edges bent and the corners protruding upward, and a small screw in the center. The machine screw 24 inserted through the screw insertion holes 16 and 17 of the bearing piece 10 is screwed into the screw hole 25 of the nut piece 23 within the space 14. In the bearing device of the folding door that is combined, the upper piece 12 of the bearing piece 10 is
and the end of the lower piece 13 are connected by a connecting part 18,
A bearing device for a folding door characterized in that a part of the connecting portion 18 is an elastic piece 20 that elastically projects outward from the bearing piece 10.