JPH102145A - Traveling construction to lower rail of lower runner of folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door capable of smoothly traveling even in a folded state and having no noise. SOLUTION: An upper runner 3 traveling on an upper rail 2 and a lower runner 5 traveling on a lower rail 4 are provided respectively to up and down of one end section of each of panel bodies 1 in a folding door connecting the other end section thereto in a foldable manner with a folding joint device. The lower runner 5 is so constituted that traveling wheels are provided to both sides of a runner main body. Collar pieces are projected inward to both edges of an upper opening of the upper opened channel lower rail 4. Rail grooves having an inverted trapezoidal section or a V-shape with a wider width as each of them goes to upper side are formed in both sides of the bottom piece of the channel lower rail 4. The traveling wheels on both sides of the lower runner 5 are fitted into the rail grooves in a travelable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a running structure for a lower runner of a folding door to a lower rail.

[0002]

2. Description of the Related Art An upper runner running on an upper rail and a lower runner 5 running on a lower rail 4 are respectively provided from upper and lower surfaces of one end of a panel body 1 upward and downward, respectively. Folding doors whose ends are connected by hinge means are known.

[0003]

In the above-mentioned conventional folding door, when traveling in a folded state, the folding door is folded forward as shown in FIG. 12 (the lower rail in FIG. 12). 4), the lower runner 5 tilts as shown in FIG.
2, the tip of the rotating shaft of the traveling wheel 31 of the lower runner 5 (indicated by reference numeral 38 in FIG. 12) collides with one inner wall surface 39 of the lower rail 4, or travels. The runner main body 30 has traveled in a state where it has collided with a flange piece 32 provided at the edge of the upper opening of the lower rail 4. For this reason, it is difficult for the lower runner 5 to travel, and a noise is generated when the vehicle runs, resulting in noise. Further, in the conventional example, when dust enters the lower rail 4, it spreads over the entire width of the bottom piece of the lower rail 4, which hinders the traveling of the traveling wheel 31 of the lower runner 5. There was a problem that cleaning was difficult.

[0004] The present invention has been made in view of the above-mentioned problems of the prior art, and can run smoothly even in a folded state, can be made free of noise, and can further reduce dust on the lower rail. An object of the present invention is to provide a traveling structure to a lower rail of a lower runner of a folding door, which does not hinder the traveling of a traveling wheel of the lower runner even when entering, and is easy to clean.

[0005]

In order to solve the above-mentioned problems of the present invention, the traveling structure of the folding door to the lower rail of the lower runner is provided so that one end of the panel body 1 is foldable by folding connecting means. An upper runner 3 running on the upper rail 2 and a lower runner 5 running on the lower rail 4 are provided above and below the other end of each panel body 1 of the connected folding door,
The lower runner 5 is constructed by providing running wheels 31 on both sides of a runner main body 30, and a flange piece 32 is provided inwardly protruding inward at both edges of an upper opening of a groove-shaped lower rail 4 opening upward. A rail groove portion 3 having an inverted trapezoidal cross section or a V-shaped cross section whose width increases toward the upper side on both sides of the bottom piece 33 of the lower rail 4 of the mold shape
4 is formed, and the running wheels 31 on both sides of the lower runner 5 are fitted in the rail groove portions 34 so as to be able to run freely. With such a configuration, it is possible to prevent the lower runner 5 from inclining in the lateral direction by inclining the one running wheel 31 on the slope of the rail groove portion 34 having an inverted trapezoidal cross section or a V-shaped cross section. It runs smoothly on the slope while being driven.

[0006] It is also preferable to form a groove 35 for storing dust in the center of the bottom piece 33 of the lower rail 4. With such a configuration, even if dust falls into the inside from the upper opening of the lower rail 4, the bottom piece 33 corresponding to the lower part of the upper opening.
Is collected in the refuse storage groove 35 at the center of the lower runner 5 so as not to hinder the traveling of the lower runner 5. Further, even if dust enters the rail groove portion 34, dust is accumulated at the bottom of the rail groove portion 34 having the inverted trapezoidal shape or the V-shaped cross section, so that the traveling wheel 31 of the lower runner 5 is By running on the inclined surface above the bottom of the rail groove portion 34 having the shape or the V-shape, the vehicle can run smoothly.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the accompanying drawings. An upper runner 3 running on the upper rail 2 from the upper surface of one end of the panel body 1 projects upward, and a lower runner 5 running on the lower rail 4 from the lower surface of one end of the panel body 1 downward. And the other side ends of the two panel bodies 1 are rotatably connected to each other to form a folding door.

The folding connection means for rotatably connecting the other end portions of the two panel bodies 1 has the following configuration. That is, as shown in FIGS. 5 to 11, the side protruding portions 6 are provided at the upper and lower ends of the side end portion of the other end portion of the panel body 1, respectively. The toothless gear portion 7 is formed integrally with the one-side projecting portion 6. The side protruding portion 6 is formed of a synthetic resin, and is fixed to the panel body 1 with a screw 25. An insertion hole 8 that penetrates up and down is drilled at the center of the toothless gear portion 7 provided in the side protrusion 6. The upper toothless gear portions 7 and the lower toothless gear portions 7 of adjacent panel bodies 1 are meshed with each other, and upper and lower sets of the toothless gear portions 7 meshing with each other on the upper and lower sides.
The connecting plate 10 is brought into contact with the upper surface side and the lower surface side of the gear, and two holes provided in the connecting plate 10 on the upper surface side and the lower surface side are respectively communicated with the insertion holes 8 of the two toothless gear portions 7. The shaft 9 is inserted into the hole, the insertion hole 8 and the hole, and the shaft 9 is prevented from coming off by the stopper means 18 so as not to come off (in the embodiment shown in the figure, the stopper means 18 is constituted by caulking). .
In this way, the upper two toothless gear portions 7 are meshed and connected, and the lower two toothless gear portions 7 are meshed and connected.

The hinge column 1 is located between the two upper meshing toothless gear portions 7 and the lower two meshing toothless gear portions 7.
1 and the lower ends of the upper two shafts 9 are inserted into the holes 12 opened in the upper surface of the hinge post 11, respectively, and the upper ends of the lower two shafts 9 are inserted into the lower surface of the hinge post 11, respectively. It is inserted into the hole 12 to be opened. 5 to 9
10 shows a portion where the two panel bodies 1 are rotatably connected at the top, and FIGS. 10 and 11 show a portion where the two panel bodies 1 are rotatably connected at the bottom.

As shown in FIG. 2, the lower runner 5 is constructed by providing running wheels 31 on both sides of a main body 30 of the runner. On the other hand, as shown in FIGS. 2 to 4, the lower rail 4 has a groove-like shape with an upper opening, and flanges 32 project from both edges of the upper opening of the lower rail 4 toward the inside. . A groove 35 for storing dust is formed in the center of the bottom piece 33 of the lower rail 4. In addition, on both sides of the above-mentioned waste groove 35 of the bottom piece 33 of the bottom rail 4 of the groove-shaped lower rail 4, a rail groove portion 34 having an inverted trapezoidal cross section or a V-shaped cross section which becomes wider toward the upper side.
Is formed.

As shown in FIG. 2, the lower runner 5 inserted into the lower rail 4 has upper and lower running wheels 31 on both sides of an inclined side surface of a rail groove portion 34 having an inverted trapezoidal or V-shaped cross section. The vehicle travels while hitting a substantially intermediate portion in the direction. The folding door having the above-described configuration runs the upper runner 3 and the lower runner 5 along the upper rail 2 and the lower rail 4 to extend the two panel bodies 1 into a linear state (that is, a closed state). State) and a folded state (that is, an open state) in which the two panel bodies 1 are folded.

When the vehicle is run in a folded state, the folding door projects forward of the lower rail 4 (to the left of the lower rail 4 in FIG. 4), so that the lower runner 5 tilts as shown in FIG. At this time, at this time, one of the running wheels 31 of the running wheels 31 on both sides of the lower runner 5 floats, but the other running wheel 31 has an inverted trapezoidal cross section or a V-shaped rail groove portion 3.
4 and is prevented from shifting to the right in FIG. 4, and in this state, the vehicle smoothly travels on the inclined surface of the rail groove portion 34 having an inverted trapezoidal cross section or a V-shape. Therefore, the lower runner 5 is displaced to the right in FIG. 4 and the tip of the rotating shaft of the traveling wheel 31 (indicated by reference numeral 38 in FIG. 4) does not collide with the inner wall surface 39 of the lower rail 4 and travels smoothly. become. Although the other running wheel 31 rises from the rail groove portion 34 as shown in FIG. 4, the running wheel 31 runs smoothly while rolling on the lower surface of the one flange piece 32.

When dust falls from the upper opening of the lower rail 4 into the inside, the dust is collected in a groove 35 for storing dust in the center of the bottom piece 33 corresponding to the lower part of the upper opening.
Thus, the accumulation of the dust in the groove 35 for storing dust does not hinder the traveling of the lower runner 5. Furthermore, even if dust enters the lateral rail groove portion 34 beyond the trash accumulation groove 35, dust is formed at the bottom of the rail groove portion 34 whose rail groove portion 34 has an inverted trapezoidal or V-shaped cross section. Since the traveling wheels 31 of the lower runner 5 travel on an inclined surface higher than the bottom of the rail groove portion 34 having an inverted trapezoidal cross section or a V-shaped cross section, the traveling can be smoothly performed.

As shown in FIG. 3, a lower rail 4 is provided in a groove 35 for storing dust in the center of the bottom piece 33 as shown in FIG.
8 and the head 29 of the fixing tool 29 such as a screw for fixing to
a, so that the traveling wheel 31 of the lower runner 5 does not get caught on the head 29a of the fixing tool 29 and hinders traveling. In the embodiment shown in the accompanying drawings, when the two panel bodies 1 are folded and rotated, the two panel bodies 1 are rotated in conjunction with each other while the toothless gear portions 7 mesh with each other at the upper and lower portions. Therefore, when the two panel bodies 1 are folded, the two panel bodies 1 rotate in conjunction with each other, and the angles of the two panel bodies 1 in the folded state become the same, and the upper folding angle and the lower folding angle And the folding angles of the two panel bodies 1 are prevented from inclining.

In the embodiment shown in the accompanying drawings, a spread state holding means 1 for holding a state in which two panel bodies 1 connected in a foldable manner are linearly spread.
3 are provided. That is, as shown in FIG. 6, FIG. 7, and FIG. 8, a columnar locking portion 14 protrudes from the surface of the side protruding portion 6 provided on the upper part of the one panel body 1, and the other side. On the surface side of the side protruding portion 6 provided on the upper part of the panel body 1, there is provided a locked portion 15 having a substantially U-shaped cross section and having elasticity. 15 together with the extended state holding means 13.

Immediately before the two panel bodies 1 are extended so that the folding doors are linear, the front end of the to-be-locked portion 15 elastically passes over the locking portion 14 and the two panel bodies 1 Part 1 having a substantially V-shaped cross section in a state where is extended linearly.
Numeral 5 is for elastically locking the locking portion 14 having a columnar shape. Since the locked portion 15 is locked to the locking portion 14 in this manner, the state in which the folding door is extended so that the two panel bodies 1 are linear is maintained, and the folding door naturally moves from the extended state. The folding door does not open in the direction in which it is folded.

[0017]

According to the first aspect of the present invention, as described above, one end of the panel body is connected to the other end of each panel body of each of the folding doors by foldable connecting means. An upper runner that runs on the upper rail and a lower runner that runs on the lower rail are provided, and the lower runner is provided with running wheels on both sides of the runner main body. A rail having a reverse trapezoidal or V-shaped cross section in which flange pieces protrude inward at both edges of the upper opening, and the width increases toward both sides of the bottom piece of the bottom rail of the groove-shaped shape. A groove is formed, and the running wheels on both sides of the lower runner are movably fitted into the rail groove, so that the lower runner is inclined and one of the running wheels has an inverted trapezoidal cross section or a V-shaped cross section on the slope of the rail groove. And as a result, the lower runner shifts sideways. Sealed and then smoothly running wheel traveling a slope of the rail groove, the result can also smoothly travel in the folded state, also those that can be so that there is no generation of noise.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, a concave groove for garbage is formed at the center of the bottom piece of the lower rail. Even if dust falls into the inside from the upper opening of the lower rail, the dust can collect in the groove for dust storage in the center of the bottom piece corresponding to the lower part of the upper opening and be widely dispersed in the width direction of the bottom piece. Therefore, as a result, the dust does not hinder the traveling of the lower runner and is easy to clean.Also, even if the dust goes over the groove for the garbage sump in the center and enters the rail groove, the rail groove is formed. Will collect dirt at the bottom of the rail groove having an inverted trapezoidal or V-shaped cross section, and the running wheel of the lower runner will have an inclined surface higher than the bottom of the rail groove having an inverted trapezoidal or V-shaped cross section. By running, you can run smoothly .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of a lower rail portion of the above.

FIG. 3 is a cross-sectional view of a portion where the lower rail is fixed to a floor by a fixing tool.

FIG. 4 is an explanatory diagram in a case where a lower runner is running while tilting in the lower rail.

FIG. 5 is a perspective view of a portion in which upper end portions of the panel body are rotatably connected to each other.

FIG. 6 is a perspective view of a portion where the toothless gear portion provided on the upper side protrusion of the above is meshed and connected.

FIG. 7 is an exploded perspective view of the same.

FIG. 8 is a plan view of the same.

FIG. 9 is a front view of the same.

FIG. 10 is a plan view of a portion where the toothless gear portions provided on the lower side protruding portion are engaged and connected.

FIG. 11 is a front view of the same.

FIG. 12 is an explanatory diagram showing a problem of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel body 2 Upper rail 3 Upper runner 4 Lower rail 5 Lower runner 30 Runner main body 31 Running wheel 32 Flange piece 33 Bottom piece 34 Rail groove part 35 Groove for garbage collection

Claims (2)

[Claims] 1. An upper runner running on an upper rail above and below the other end of each panel body of a folding door in which one end of a panel body is foldably connected by folding connection means, and a lower runner running on a lower rail. The lower runner is configured by providing running wheels on both sides of the runner main body, and a flange piece protrudes inward at both edges of the upper opening of the upper rail-shaped lower rail to form a groove. Form a rail groove with an inverted trapezoidal cross section or a V-shaped cross section that becomes wider toward the upper side on both sides of the bottom piece of the bottom rail of the shape, so that the running wheels on both sides of the lower runner can run freely in the rail groove. A running structure to the lower rail of the lower runner of the folding door, which is characterized by being fitted. 2. The traveling structure for a lower runner of a folding runner as claimed in claim 1, wherein a groove for storing garbage is formed in the center of the bottom piece of the lower rail.