JP3592800B2 - Orido's traveling guide structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a traveling guide structure for an folding door. More specifically, the present invention relates to an improvement relating to durability of a traveling guide structure such as a folding door.
[0002]
[Prior art]
As a folding door opening / closing structure, for example, there is a shaft suspension type as shown in FIG. In this shaft suspension type, the folding door A on the moving side and the folding door B on the hanging side are connected by a hinge C, and the upper and lower ends of the folding door B on the hanging side are equipped with pivots D and E and fixed to the traveling rail F. It is supported by pivot seats G and H, and runners I and J are provided at the upper and lower ends of the folding door A on the moving side so that it can travel along the traveling rail F.
[0003]
In addition to this, there are various types of folding door opening / closing structures such as a top-hanging type, and a traveling guide structure including a traveling rail F and runners I and J is provided in a part thereof. It should be noted that such a traveling guide structure is provided in doors and doors other than the folding doors A and B.
[0004]
DESCRIPTION OF RELATED ART Conventionally, as a travel guide structure of an folding door, the thing of Unexamined-Japanese-Patent No. 6-27736 is known, for example.
[0005]
As shown in FIG. 9, this conventional traveling guide structure for a folding door is provided with a traveling rail 3 embedded and disposed in a frame 2 on which the folding door 1 is supported, and a projection partly protruding from a lower end of the folding door 1 and embedded therein. And runner 4.
[0006]
The traveling rail 3 is formed in a substantially U-shape by a bottom wall 31 and both side walls 32 and 33, and flanges 34 and 35 protruding inward are provided at substantially center portions of both side walls 32 and 33. The flanges 34 and 35 have steps Ta on the outer surface (the surface on the side of the folding door 1) with different thicknesses Ta and Tb.
[0007]
The runner 4 elastically urges the shaft 43 toward the traveling rail 3 by a coil spring 42 provided inside a holder 41 embedded in the folding door 1, and the tip end of the shaft 43 is rotatable about the shaft 43. A ring 44 is attached. The rotating wheel 44 includes a circular ring-shaped main body 441 and a cone 442 for preventing derailment formed at the center of the distal end of the main body 441.
[0008]
According to this conventional folding door traveling guide structure, between the assembled traveling rail 3 and the runner 4, the end face of the main body 441 of the rotating wheel 44 of the runner 4 is caused by the elastic force of the coil spring 42 to cause the flange 34 of the traveling rail 3. , 35 are pressed against the outer surface. At this time, a clearance S is formed between the flange 35 on the thinner thickness Tb side and the end face of the main body 441 due to the step between the flanges 34 and 35. As a result, the contact areas of the end faces of the main body 441 with the flanges 34 and 35 are different, the friction distribution is uneven, the rotating wheel 44 is easily rotated, the friction is reduced, and the durability is increased. When the rotating wheel 44 of the runner 4 rotates, the main body 441 contacts the side walls 32, 33 of the traveling rail 3, and the cone 442 contacts the protruding ends of the flanges 34, 35 of the traveling rail 3. Will be.
[0009]
[Problems to be solved by the invention]
In the above-described conventional traveling guide structure for a folding door, the end surface of the main body 441 of the rotating wheel 44 of the runner 4 is pressed against the outer surfaces of the flanges 34 and 35 of the traveling rail 3 to which foreign matter and the like are easily adhered. The outer surfaces of the flanges 34 and 35 and the end surfaces of the main body 441 are easily damaged by the traveling movement. When the rotating wheel 44 of the runner 4 rotates, the conical column portion 442 comes into contact with the protruding ends of the flanges 34 and 35 of the traveling rail 3. The end and the cone 442 are easily damaged. Therefore, there is a problem that durability is low.
[0010]
The present invention has been made in consideration of such problems, and has as its object to provide a highly durable folding door traveling guide structure in which damage to a runner and a traveling rail due to the traveling movement of the runner is reduced. .
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, a traveling guide structure for a folding door according to the present invention includes a traveling rail formed in a substantially U shape and provided with flanges protruding inward on both side walls, and a rotating wheel that rotates in contact with the traveling rail. In the traveling guide structure of a folding door comprising a runner mounted on the folding door provided with the traveling rail, the traveling rail is a traveling rail on the lower end side of the folding door, and has a housing space for a rotating wheel of the runner between the flange and the bottom wall. The runner is equipped with an elastic member that urges the rotating wheel toward the folding door and presses against the inner surface of the flange, and if the contact area between the inner surface of each flange of the running rail and the end surface of the rotating wheel of the runner is different on both flange sides. Means characterized by having been adopted.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a traveling guide structure for a folding door according to the present invention will be described with reference to FIGS.
[0013]
FIG. 1 shows a first embodiment of a traveling guide structure for a folding door according to the present invention.
[0014]
The traveling rail 3 of this embodiment has a substantially U-shape including a bottom wall 31 and both side walls 32 and 33 as in the above-described conventional example, but flanges 34 and 35 are provided at the ends of the side walls 32 and 33. A housing space 36 for housing the rotating wheel 44 of the runner 4 is formed therein. Further, the flanges 34 and 35 have different thicknesses Ta and Tb as in the above-described conventional example, but the step is formed on the inner side surface. In addition, the flange 34 on the thicker side of the thickness Ta is preferably located on the outer side of the frame 2 in order to receive the moment of the folding door 1 that is folded outward of the frame 2. In addition, the protruding length of the flanges 34 and 35 is relatively short, and the interval W between the openings between the flanges 34 and 35 is wide open.
[0015]
In the runner 4 of this embodiment, the elastic member including the coil spring 42 is elastically mounted so as to urge the shaft 43 toward the folding door 1. In addition, the rotating wheel 44 has a circular ring shape including only the main body portion 441 without the above-described conventional example having the conical column portion 442.
[0016]
According to this embodiment, the rotating wheel 44 of the runner 4 is accommodated in the accommodation space 36 of the traveling rail 3 and the traveling rail 3 and the runner 4 are assembled.
[0017]
Between the running rail 3 and the runner 4 assembled, the end face of the rotating wheel 44 of the runner 4 is pressed against the inner surfaces of the flanges 34 and 35 of the running rail 3 by the elastic force of the coil spring 42. At this time, a clearance S is formed between the flange 35 on the thinner thickness Tb side and the end face of the rotating wheel 44 due to the step between the flanges 34 and 35. As a result, similarly to the above-described conventional example, the contact area of the end face of the rotating wheel 44 with the flanges 34 and 35 is different, the friction distribution is uneven, the rotating wheel 44 is easily rotated, the friction is reduced and the durability is reduced. Nature.
[0018]
Then, since the end surface of the rotating wheel 44 of the runner 4 is pressed against the inner surfaces (surfaces on the bottom wall 31 side) of the flanges 34 and 35 of the traveling rail 3 to which foreign matter and the like are less likely to adhere, the traveling movement of the runner 4 causes the flange 34 to move. , 35 and the end surface of the rotating wheel 44 are not damaged. Further, when the rotating wheel 44 of the runner 4 rotates, the shaft 43 of the runner 4 does not contact due to the gap W between the openings that are widely opened between the flanges 34 and 35, and the above-described conventional conical column. Since there is no portion 442, the projecting ends of the flanges 34 and 35 of the traveling rail 3 are not damaged by the traveling movement of the runner 4.
[0019]
FIG. 2 shows a second embodiment of the traveling guide structure for a folding door according to the present invention.
[0020]
In this embodiment, a step is formed between the flanges 34 and 35 by projecting the protrusion 37 from the protruding end of one flange 34.
[0021]
According to this embodiment, the contact area of the runner 4 with the end face of the rotating wheel 44 on the side of the one flange 34 provided with the protrusion 37 is also reduced, so that the friction is reduced and the durability is further increased. .
[0022]
FIG. 3 shows a third embodiment of the traveling guide structure for a folding door according to the present invention.
[0023]
In this embodiment, the protrusion 37 of the second embodiment is moved toward the side wall 32.
[0024]
According to this embodiment, the contact area of the projection 37 on the end face of the rotating wheel 44 of the runner 4 is away from the center and the contact area is reduced, so that the friction is further reduced and the durability is increased.
[0025]
FIG. 4 shows a fourth embodiment of the folding door traveling guide structure according to the present invention.
[0026]
In this embodiment, a step is formed between the two flanges 34 and 35 by inclining the projecting direction of one flange 34 toward the bottom wall 31.
[0027]
According to this embodiment, the contact area can be reduced as in the above-described second and third embodiments, but since the step structure having the small projection 37 is not required, the traveling rail 3 can be easily formed.
[0028]
FIG. 5 shows a fifth embodiment of the traveling guide structure for a folding door according to the present invention.
[0029]
In this embodiment, the shaft 43 of the runner 4 is bent so that a tapered surface 443 is provided on the entire peripheral edge of the end surface of the rotating wheel 44. That is, the axis La of the rear end portion of the shaft 43 and the axis Lb of the rotating wheel 44 are bent so that the end face of the rotating wheel 44 does not contact the other flange 35.
[0030]
According to this embodiment, it is possible to use the existing substantially U-shaped traveling rail 3 in which the flanges 34 and 35 are provided on both side walls 32 and 33 so as to face each other.
[0031]
6 and 7 show a sixth embodiment of the folding door traveling guide structure according to the present invention.
[0032]
In this embodiment, a tapered surface 444 is provided on the entire periphery of the end surface of the rotating wheel 44 of the runner 4, and one flange 35 of the traveling rail 3 is formed shorter than the other flange 34. That is, a part of the end surface of the rotating wheel 44 does not contact either one of the flanges 34 and 35.
[0033]
According to this embodiment, the existing substantially U-shaped traveling rail 3 provided with the flanges 34 and 35 on the side walls 32 and 33 facing each other can be used, and the manufacture of the rotating wheel 44 of the runner 4 is also easy. .
[0034]
Further, the present invention can be applied to doors and doors other than the folding door.
[0035]
【The invention's effect】
As described above, in the traveling guide structure of the folding door according to the present invention, the contact portion of the traveling rail and the runner on the lower end side of the folding door is set to the inner portion of the substantially U-shaped traveling rail to which foreign matter is less likely to adhere. This has the effect of reducing damage to the runners and running rails associated with this, and increasing durability.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a first embodiment of a traveling guide structure for a folding door according to the present invention.
FIG. 2 is a sectional view of a main part showing a second embodiment of a traveling guide structure for a folding door according to the present invention.
FIG. 3 is a sectional view of a main part showing a third embodiment of a traveling guide structure for a folding door according to the present invention.
FIG. 4 is a sectional view of a main part showing a fourth embodiment of a traveling guide structure for a folding door according to the present invention.
FIG. 5 is a sectional view of a main part showing a fifth embodiment of the traveling guide structure for a folding door according to the present invention.
FIG. 6 is a sectional view of a main part showing a sixth embodiment of a traveling guide structure for a folding door according to the present invention.
FIG. 7 is a perspective view of a main part of FIG. 6;
FIG. 8 is a perspective view showing an example of a folding door opening / closing structure.
FIG. 9 is a sectional view showing a conventional example.
[Explanation of symbols]
1 folding door 3 running rail 31 bottom wall 32,33 side wall 34,35 flange 36 accommodation space 4 runner 42 elastic member (coil spring)
43 Shaft 44 Rotating wheel 443, 444 Tapered surface

Claims (6)

In a traveling guide structure for a folding door, the traveling guide structure includes a traveling rail formed in a substantially U-shape and provided with flanges protruding inward on both side walls, and a runner provided with a rotating wheel that rotates in contact with the traveling rail. The running rail is a running rail at the lower end side of the folding door and has a space for accommodating a rotating wheel of the runner between the flange and the bottom wall. The runner pulls the rotating wheel toward the folding door and presses against the inner surface of the flange. A traveling guide structure for a folding door, comprising: an elastic member for causing the inner surface of each flange of the traveling rail and the end surface of the rotating wheel of the runner to have different contact areas on both flange sides. 2. A flange according to claim 1, wherein both flanges of the running rail are formed so as to have different thicknesses, and the contact area between the inner surface of each flange and the end surface of the rotating wheel of the runner is different on both flange sides. Orido's traveling guide structure. The protrusion is provided on one of the two flanges of the traveling rail, and the contact area between the inner surface of each flange and the end surface of the rotating wheel of the runner is made different between the two flanges. Orido's traveling guide structure. The contact area between the inner surface of each flange and the end surface of the rotating wheel of the runner is made different on both flange sides by inclining one of the two flanges of the running rail toward the bottom wall. Item 4. The traveling guide structure of the folding door according to Item 1. Along with bending the shaft of the rotating wheel of the runner, a tapered surface is provided on the entire peripheral surface of the end surface of the rotating wheel, and the contact area between the inner surface of each flange of the running rail and the end surface of the rotating wheel of the runner on both flange sides. The traveling guide structure for an folding door according to claim 1, wherein the traveling guide structure is different. While a taper surface is provided on the entire peripheral edge of the end surface of the runner's rotating wheel, one flange of the traveling rail is formed shorter than the other flange, and the inner surface of each flange of the traveling rail and the rotating wheel of the runner are formed. 2. The traveling guide structure for a folding door according to claim 1, wherein the contact area with the end surface is made different on both flange sides.

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