JP3265828B2 - Folding door door roller device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door system for a folding door which is provided at a lower end of a side end of the folding door and supports the folding door so that the folding door can run.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 9, 10, 11, and 12, a door roller block (b) is supported at a lower end of a side end of a folding door (a) so as to be rotatable in a horizontal direction. Folding door door systems are known.

In the folding door door device, a door roller block (b) is rotatably supported in a horizontal direction by a bearing member (c) housed and fixed at a lower end of a side end of the folding door (a). On the door roller block (b), a door roller body (e) is supported by a door roller rotating shaft (d) so as to be freely rotatable in the vertical direction. The door roller body (e) is rotatably driven along the lower rail (f), and at this time, as shown in FIG.
With respect to the folded door (a), the door roller block (b) rotates in the horizontal direction, and the door door block (b) is opened from a notch opening (g) formed at one side wall at the lower end of the side end of the folding door (a). Protruded.

[0004]

However, in the above-mentioned prior art, as shown in FIG.
Of the folding door (a) is provided at a position displaced from immediately below the rotation axis (h) of the bearing member (c) for supporting the door rolling block (b). The moment acts as an unreasonable force on the rotation axis (h), and the rotation of the door roller block (b) is not smooth and the traveling performance is poor, and the door roller block (b) is easily worn out and damaged, and the life is extended. It was short.

[0005] The present invention has been invented in order to solve the above-mentioned problems in the prior art. That is, the problem is that the door roller block rotates smoothly and its running performance is good, and it is hard to wear and break. In addition, it is an object of the present invention to provide a folding door door device capable of rotating a door roller block without any trouble even if the folding door has a small thickness.

[0006]

According to a first aspect of the present invention, there is provided a door mechanism for a folding door, wherein a notch is formed at a lower end of a side end of the folding door, the opening being opened on the front and back, and a door wheel block is formed in the notch. The door roller block is accommodated, the door roller block is rotatably supported in the horizontal direction, and the door roller shaft of the door roller block is positioned directly below the rotation axis of the door roller block. This configuration has solved the above-mentioned problem.

According to a second aspect of the present invention, in the folding door door device, the outer shape of the door block and the opening shape of the cutout portion are substantially matched with each other. It is characterized by the following.

According to a third aspect of the present invention, there is provided a folding door stroller apparatus according to the second aspect, wherein the inner vertical surface of the cutout portion is centered on a rotation axis of the door roller block. And a curved convex surface facing the inner vertical surface is formed on the outer surface of the door roller block.

[0009] Claim 1) door roller device of the folding doors according the invention is further characterized in that the panel thickness dimension of the front and back width dimensions as the folding door door roller blocks substantially to coincide.

[0010]

In the folding door door device according to the first aspect of the present invention, since the door roller rotating shaft of the door roller block is located immediately below the rotation axis of the door roller block, the load of the folding door is reduced. The door shaft is smoothly and stably supported by the driving shaft, so that no excessive force acts on the rotation axis of the door roller block, and the door roller block rotates smoothly, so that its running performance is good, and it is hardly worn or damaged. Moreover, since the door roller block is housed in the notch formed on the front and back sides formed at the lower end of the side end of the folding door, and the door roller block is supported rotatably in the horizontal direction, the folding door having a small thickness is used. Even in this case, the door roller block protrudes from the opening on both sides of the notch and can rotate without any trouble.

In the folding door door device according to the second aspect of the present invention, the outer shape of the door roller block and the opening shape of the notch portion substantially match each other, so that the door roller block housed in the notch portion. No large gap is generated on the outer periphery of the device, and the appearance is improved.

In the folding door door device according to claim 3 of the present invention, the inner vertical surface of the notch is formed as an arc-shaped curved concave surface centered on the rotation axis of the door roller block. Since the curved convex portion facing the inner vertical surface is formed on the outer surface of the door roller block, even if the outer peripheral gap of the door roller block is set to be as small as possible, the outer surface of the door roller block is notched. The door block can rotate smoothly without any trouble without contacting the inner vertical surface.

[0013] The above in claim 1) door roller device of the folding door according to the present invention, further, since the a panel thickness dimension of the front and back width dimensions as the folding door door roller block is matched substantially, folding closed the door At the time of extension, the door roller block does not protrude to both sides of the cutout portion, and the entirety of the door together with the folding door fits flush with each other, so that the appearance becomes extremely good.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The folding door door apparatus shown in FIGS. 1, 2, 3, 4 and 5 is an embodiment of the present invention,
A notch 2 is formed at the lower end of the side end of the door, and a door wheel block 3 is accommodated in the notch portion 2.
Are rotatably supported in the horizontal direction, and the door roller shaft 5 of the door roller block 3 is positioned directly below the rotation axis 4 of the door roller block 3.

The folding door 1 is a two-fold door, and is formed by connecting a pair of wooden panels 8 by hinges 9 so as to be freely bent. Guide runners 10 protrude from the upper ends of both sides of the folding door 1, and the door roller block 3 is provided at the lower ends of the both ends. An upper rail on which a door roller body 11 provided on the double door roller block 3 is rollably engaged and mounted on a lower rail 12 fixed to a floor surface, and the guide runners 10 are fixed to a ceiling surface. By being slidably engaged with the respective members 13, the folding door 1 is supported by a load on the lower side and can be folded and run freely. An upper rail 13 is provided at the upper end of the folding door 1 near the panel connecting portion.
A latch 14 detachably latched on the lower rail 12 is provided at the lower end thereof with a lock 15 detachably engaged with the lower rail 12 by being vertically moved. When the lock 15 is locked to the upper rail 13 and the lower rail 12, the closed and extended state of the folding door 1 is maintained.

A lower hole is formed in the lower end of both sides of the folding door 1, and a mounting cylinder 16 is inserted and fitted into the lower hole and fixed. At this time, a tapered ridge 17 is protruded from the outer periphery of the mounting cylinder 16, and the tapered ridge 17 is locked to the inner peripheral surface of the pilot hole, so that the mounting cylinder 16
16 is firmly fixed so that it does not come off. A spring 18 is accommodated in the mounting cylinder 16, and a shaft 19 serving as the rotation axis 4 of the door roller block 3 resiliently projects from the lower end of the mounting cylinder 16 by the elastic restoring force of the spring 18. It has been erected. A door roller block 3 is rotatably fixed to the lower end of the shaft body 19, and a bearing 20 is integrally attached to the upper side of the door roller block 3. or,
The impact caused by the vertical movement of the folding door 1 during the opening / closing travel of the folding door 1 is buffered by the spring 18. 20 is accommodated up and down freely. Since the bearing 20 is rotatably fitted in the large guide hole 21, the swing movement of the shaft 19 and the door roller block 3 is reliably prevented.

The door roller block 3 is integrally formed of a synthetic resin or metal, and is formed in a box shape opened downward. A mounting bracket 22 having a substantially hat-shaped cross section is accommodated and fixed in the door roller block 3, and the door roller main body 11 is mounted and supported on the mounting metal 22 via the door roller rotating shaft 5. In this case, a screw 23 inserted from below into the lower piece of the mounting bracket 22 is used.
Is screwed into a lower end of a built-up portion 24 integrally protruded from the inner periphery of the door roller block 3 so that the mounting bracket 22 is housed and fixed in the door roller block 3.

The outer shape of the door roller block 3 when viewed from the side is formed so as to substantially match the shape of the opening on both sides of the notch portion 2, and the inner vertical surface 6 of the notch portion 2 is rotated by the rotation of the door roller block 3. A curved concave surface having an arc shape centered on the axis 4 is formed, and a curved convex portion 7 facing along the inner vertical surface 6 is formed on the outer surface of the door roller block 3. The front and back width dimension L of the block 3 and the panel thickness dimension T of the folding door 1 are set to substantially match.

Therefore, in the folding door door device of this embodiment, since the door roller rotating shaft 5 of the door roller block 3 is located immediately below the rotation axis 4 of the door roller block 3, the load of the folding door 1 is reduced. The door roller block 3 is smoothly and stably supported by the door roller rotating shaft 5, and no excessive force such as bending or twisting is applied to the shaft body 19 serving as the rotation axis 4 of the door roller block 3, and the door roller block 3 rotates smoothly. As a result, the traveling performance is good, and the door block 3, the shaft 19 and the like are hardly worn out or damaged. Moreover, since the door roller block 3 is accommodated in the notch 2 opened at the front and back formed at the lower end of the side end of the folding door 1, the door roller block 3 is supported rotatably in the horizontal direction. Door door block 3 even if the folding door 1 is thin
Protrudes from the openings on both sides of the notch 2 and can rotate without any trouble.

Further, in the folding door door apparatus of the embodiment, since the outer shape of the door roller block 3 and the opening shape of the notch 2 substantially match each other, the door roller accommodated in the notch 2 is particularly suitable. There is no large gap on the outer periphery of the block 3 and the appearance is good. An inner vertical surface 6 of the notch 2 is formed as an arc-shaped curved concave surface centered on the rotation axis 4 of the door roller block 3, and a curved convex surface portion 7 facing along the inner vertical surface 6 is formed. Since the outer peripheral surface of the door roller block 3 is formed as small as possible, the outer surface of the door roller block 3 is formed on the outer surface of the door roller block 3 as shown in FIG. Without contacting
The door block 3 can rotate smoothly without any trouble. Moreover, since the front and back width dimension L of the door roller block 3 and the panel thickness dimension T of the folding door 1 substantially match, the door roller block 3 does not protrude to both sides of the notch 2 when the folding door 1 is closed and extended. The whole is housed flush with the folding door 1, and the appearance is extremely good.

The folding door door device shown in FIG.
In another embodiment of the present invention, the folding door door device of this embodiment is formed in the same manner as the above embodiment except for the following configuration.

That is, the notch cap 25 is attached to the notch 2 formed at the lower end of the side end of the folding door 1, and the door wheel block 3 is accommodated in the notch cap 25. The notch cap 25 is made of aluminum, and is formed in a substantially L shape by a vertical piece 26 along the inner surface of the notch 2 and a horizontal piece 27 along the inner upper surface of the notch 2. Further, a through hole 28 is formed in the vertical piece 26 of the notch cap 25, and a screw nail 29 inserted into the through hole 28 is screwed into the inner surface of the notch 2. The notch cap 25 is attached and fixed in the notch 2. At this time, the edge piece 30 integrally bent and protruded from the side edge of the notch cap 25 is engaged with the side edge portion of the notch 2, and is integrally formed on the horizontal piece 27 of the notch cap 25. The projecting mounting support tube 31 is inserted and fitted into a mounting pilot hole 34 formed on the inner upper surface of the cutout 2. A female screw portion 32 is formed in the upper inner periphery of the mounting pilot hole 34, and a male screw portion 33 formed on the lower outer periphery of the mounting cylinder 16 is screwed to the female screw portion 32. The door roller block 3 provided at the lower end of the mounting cylinder 16 is housed and fixed in the notch cap 25 so as to be rotatable in the horizontal direction. In this case, the upper part of the mounting cylinder 16 is inserted and housed in the mounting pilot hole 34,
The lower inner space of 31 serves as a large guide hole 21, and the bearing 20 is housed in the large guide hole 21 so as to be vertically movable. Also, the inner vertical surface 6 of the vertical piece 26 of the notch cap 25
Are formed in an arcuate curved concave surface facing the curved convex surface portion 7 of the door roller block 3.

Therefore, in the folding door door device of this embodiment, in addition to the same effects as in the above embodiment, the door wheel block 3 can be easily and reliably mounted in the notch portion 2 by the notch cap 25. The effect is achieved.

7 and 8 show still another embodiment of the present invention. In the folding door door wheel device of this embodiment, the side end holding the door stop packing 35 is provided. An edge member 36 is attached to the side end of the folding door 1 over the entire length in the vertical direction, and the outer side of the cutout 2 is closed by the side edge member 36. The door roller block 3 is made of aluminum, and is formed in a substantially U-shape by both side plate portions 37 and an upper plate portion 38. The door wheel block 3 is rotatably housed and fixed in the notch 2 by screwing a screw screw 39 inserted into the upper plate portion 38 from below into the inner upper surface of the notch 2. . In this case, the upper plate portion of the door roller block 3
A sliding washer 40 is interposed between 38 and the inner upper surface of the notch 2 so that the door block 3 can rotate smoothly.

In the folding door door roller device of this embodiment, since the door roller rotating shaft 5 of the door roller block 3 is located directly below the rotation axis 4 of the door roller block 3, the load of the folding door 1 is limited to the rotation of the door roller. The door shaft 3 is smoothly and stably supported by the driving shaft 5, and no excessive force such as bending and twisting is applied to the screw 39 serving as the rotation axis 4 of the door shaft 3. The traveling property is good, and the door block 3 and the screw 39 are hardly worn or damaged. Moreover,
The door roller block 3 is accommodated in a notch 2 opened at the front and back sides formed at the lower end of the side end of the folding door 1, and the door roller block 3 is supported rotatably in the horizontal direction. Even in the case of the folding door 1, the door roller block 3 protrudes from the opening on both sides of the notch 2 and can rotate without any trouble. In addition, since the front and back width dimensions of the door roller block 3 and the panel thickness dimension of the folding door 1 substantially match, when the folding door 1 is closed and extended, the door roller block 3 does not protrude to both sides of the notch 2 and the folding door. 1 and the whole is flush with each other, and the appearance is extremely good.

[0026]

As described above, in the folding door door apparatus according to the first aspect of the present invention, the folding door is located directly below the pivot axis of the sliding door block. The load on the door is stably and reliably supported by the door swing shaft, and no excessive force acts on the swing shaft center of the door swing block. The door door block is housed in a notch formed in the lower end of the side end of the folding door and opened at the front and back, and is supported rotatably in the horizontal direction, so that the folding door has a small thickness. The door roller block protrudes from the opening on both sides of the cutout and can rotate without any trouble.

In the folding door door device according to the second aspect of the present invention, the outer shape of the door roller block and the opening shape of the notch portion substantially match each other, so that the folding door is accommodated in the notch portion. There is no large gap on the outer periphery of the door roller block, and the appearance is good.

Further, in the folding door door device according to claim 3 of the present invention, the inner vertical surface of the notch is formed as an arcuate curved concave surface centered on the rotation axis of the door roller block. In addition, since the curved convex portion facing along the inner vertical surface is formed on the outer surface of the door roller block,
Even when the gap around the outer periphery of the door roller block is set as small as possible, the door roller block can be smoothly rotated without any trouble.

[0029] Also, according to claim 1 of the present invention) in the door roller device of the folding door as claimed it is, further, because the panel thickness dimension of the front and back width dimensions as the folding door door roller block is matched substantially, folding door When the door is closed and extended, the entire folding door together with the door roller block is flush and the appearance is extremely good.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a folding door door device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the folding door in a different direction showing the door roller device.

FIG. 3 is a bottom view showing the door roller device of the folding door.

FIG. 4 is a front view showing the entire folding door in which the folding door door device is used.

FIG. 5 is a schematic plan view showing an operation state of the door roller device of the folding door.

FIG. 6 is an exploded perspective view showing a folding door door device according to another embodiment.

FIG. 7 is a side view showing a folding door door device according to still another embodiment.

FIG. 8 is a bottom view showing the door roller device of the folding door.

FIG. 9 is a longitudinal sectional view showing a folding door door device according to a conventional example of the present invention.

FIG. 10 is a cross-sectional view showing the door mechanism of the folding door.

FIG. 11 is a transverse cross-sectional view of the folding door showing the door roller device at the time of folding.

FIG. 12 is a vertical cross-sectional view of the folding door in a different direction showing the door roller device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 2 Notch 3 Door roller block 4 Rotating axis 5 Door roller axis 6 Inside vertical surface 7 Curved convex surface

Claims (3)

(57) [Claims] 1. A notch which is opened on the front and back sides is formed at a lower end of a side end of a folding door, a door block is accommodated in the notch, and a front and back width dimension of the door wheel block and a panel of the folding door are provided.
A folding door stroller device in which the door roller block is rotatably supported in the horizontal direction by substantially matching the thickness dimension, and the door roller rotating shaft of the door roller block is positioned immediately below the rotation axis of the door roller block. 2. The folding door door roller device according to claim 1, wherein the outer shape of the door roller block and the opening shape of the cutout portion substantially match each other. 3. The inside vertical surface of the notch is formed as an arc-shaped curved concave surface centered on the pivot axis of the door roller block, and the curved convex portion facing along the inner vertical surface is formed outside the door roller block. (2) The device is formed on the side surface.
The folding door door device of the above.