JP2566382B2 - Folding door 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 folding door device.

[0002]

2. Description of the Related Art Conventionally, a lower traveling body and an upper traveling body are respectively attached to panels at an end opposite to a pivotal support of a folding door in which one ends of two panels are foldably connected by a pivot. A folding door device is provided that is rotatably provided, has a lower traveling body attached to a lower rail so as to be movable, and has an upper traveling body attached to an upper rail so as to be movable. In the folding door device of this conventional example, as shown in, for example, Japanese Utility Model Laid-Open No. 3-86986, the upper rail has a U-shaped cross section with a downward opening, and is vertically attached to both sides of the upper traveling body so as to be vertically rotatable. The roller is a so-called top-hanging type in which a roller is movably mounted on a lip portion that serves as a rail portion of a lower end opening of the upper rail, and the load of the folding door is entirely supported by the upper rail. Then, the lower traveling body is slidably mounted in the groove of the lower rail that has a groove opening downward to guide the folding door so that it does not swing, and serves as a guide, and the folding door is folded to the front side. When it is projected, the lower traveling body hits the inner side wall of the groove of the lower rail to prevent the lower traveling body from falling.

However, in the above-mentioned hanging type folding door, since the entire hanging load is applied to the upper rail, the structural strength of the upper rail or the strength of the mounting portion of the upper rail to the ceiling, etc. Due to restrictions, there were restrictions on upsizing.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the conventional example, and its main purpose is to stably support a load on a lower rail in a folding door. In addition, it is to prevent the wheel from coming off the rail part of the lower rail when the folding door is folded and projected to the front side. It does not support the load but improves the traveling performance of the upper traveling body.

[0005]

In order to solve the problems of the above-mentioned conventional example and to achieve the object of the present invention, the folding door device of the present invention is such that one end portion of two panels 1 are connected by a pivot portion 2. A lower traveling body 4 and an upper traveling body 5 are rotatably provided with respect to the panel 1 at an end portion of the folding door 3 which is foldably connected and opposite to the pivotally supporting portion 2, and the lower traveling body 4 is provided with the lower rail 7.
It is attached to the upper rail 6 so that it can run freely on the
In the folding door device mounted so that it can travel freely, the lower rail 7 having the rail portion 8 provided on the upper surface has a side end portion on the opposite side to the direction in which the folding door protrudes at the time of folding. A wheel 10 which is started up and is placed on the rail portion 8 of the lower rail 7 on the lower traveling body 4 to travel.
And a fall prevention portion 11 which is located below the fall prevention receiving portion 9 and travels, and the fall prevention portion 11 is capable of abutting on the lower surface portion of the fall prevention receiving portion 9. Is.

Further, a groove portion 12 having an opening on the lower side is formed in the upper rail 6, and an inner flange portion 13 is projected from both side walls at a position slightly above the lower end opening end of the upper rail 6 of the groove portion 12 to form a groove portion. The rail groove 12 is located above the inner flange 13 of the rail 12, and the upper traveling body 5 is rotatably attached to the panel 1, vertically movable, and elastically biased upward by a spring. The portion 14, the horizontal guide roller 15 rotatably attached to the upper end of the vertical axis portion 14, the horizontally long main body portion 14a attached to the vertical axis portion 14 below the horizontal guide roller 15, and the main body portion 14a. A vertical guide roller 16 is provided on both sides of the front and rear portions, and a horizontally rotatable horizontal guide roller 15 is disposed in the rail groove portion 12 of the upper rail 6 so as to be freely movable and the vertically rotatable vertical guide roller 1
It is also preferable that 6 is provided so as to be movable while being in contact with the lower surface side of the inner flange portion 13.

Further, the upper rail 6 is formed with a groove portion 12 which opens downward, and the inner flange portions 13 are projected from both side walls at a position slightly above the lower end opening end of the upper rail 6 of the groove portion 12 to form the groove portion. The rail groove 12 is located above the inner flange 13 of the rail 12, and the upper traveling body 5 is rotatably attached to the panel 1, vertically movable, and elastically biased upward by a spring. Portion, a horizontal guide roller 15 rotatably attached to the upper end of the vertical axis portion, and a horizontal guide roller 1
5, a horizontal guide roller 15 which is horizontally rotatable is provided in the rail groove portion 12 of the upper rail 6 so that the horizontal guide roller 15 can travel, and the slider 17 has an inner flange portion 13. It is also preferable that it is arranged so as to be able to travel while being in contact with the lower surface side of the.

[0008]

In the present invention having the above-described structure, the rail portion 8 is provided on the upper surface of the lower rail 7, and the lower traveling body 4 is provided with the wheel 10 which is mounted on the rail portion 8 of the lower rail 7 to travel. Since the wheels 10 are movably mounted on the rail portion 8 of the lower rail 7, the load of the folding door 3 can be supported by the lower rail 7. Then, at the side end portion of the lower rail 7 on the side opposite to the direction in which the folding door 3 projects at the time of folding, the fall prevention receiving portion 9 is raised upward, and the fall prevention receiving portion 9 is attached to the lower traveling body 4. By providing the fall prevention part 11 which is located on the lower side and travels, and the fall prevention part 11 can be brought into contact with the lower surface part of the fall prevention receiving part 9, the folding door 3 is folded and protruded to the front side. In this case, even if a force to disengage the wheel 10 from the rail portion 8 is applied, the fall prevention portion 11 hits the lower surface side of the fall prevention receiving portion 9 to prevent the wheel 10 from coming off the rail portion 8. .

Further, a horizontal guide roller 15 which can be freely rotated horizontally
Is vertically movably arranged in the rail groove portion 12 of the upper rail 6 and the vertically rotatable vertical guide roller 16 is provided in the inner flange portion 1.
The horizontal guide rollers 15 are arranged so that they can travel freely while being in contact with the lower surface side of the horizontal guide rollers 3, so that the horizontal guide rollers 15 allow the horizontal guide rollers 15 to move horizontally when the folding door 3 moves or folds in the lateral direction during folding. It prevents rattling while traveling by hitting the inner wall in the groove 12, and also prevents the vertical guide roller 16
By touching the lower surface of the inner flange portion 13, the upper traveling body 5 can be smoothly traveled along the longitudinal direction of the upper rail 6 while preventing rattling in the vertical direction.

Further, a horizontal guide roller 15 which can be horizontally rotated
In which the slider 17 is movably disposed in the rail groove portion 12 of the upper rail 6 and the slider 17 is movably disposed in contact with the lower surface side of the inner flange portion 13. Thus, when the folding door 3 rattles in the lateral direction during traveling or folding, the horizontal guide roller 15
Prevents rattling while traveling by hitting the inner side wall in the rail groove portion 12, and prevents the rattling in the up and down direction by the slider 17 hitting the lower surface of the inner collar portion 13 while the upper traveling body 5 is moved to the upper rail. It is possible to smoothly run along the longitudinal direction of 6.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. 1 to 6 and 8 show an embodiment of the present invention. The folding door 3 is formed by connecting one ends of two panels 1 by a pivotal portion 2 so as to be foldable. A lower traveling body 4 and an upper traveling body 5 are rotatably provided with respect to the panel 1, respectively, at a lower end portion and an upper end portion of an end portion of the two panels 1 opposite to the pivotal support portion 2.

The lower traveling body 4 is as shown in FIG. 6, and a main body case portion 19 is rotatably attached to a lower portion of a fixed shaft body 18, and a wheel 10 is rotatably attached to the main body case portion 19. . A U-shaped falling prevention portion 11 is attached to a lower surface portion of one side portion of the main body case portion 19. Both ends of the main body case portion 19 have a semicircular shape. Further, the wheel 10 has a circumferential groove 20 recessed on the outer periphery thereof.

At the lower end of the end portion of the panel 1 opposite to the pivotal support portion 2, there is provided a concave portion 22 which opens downward and on both sides.
Then, the lower traveling body 4 is inserted into the hole 23 formed in the upper bottom of the recess 22.
The lower traveling body 4 is attached to the panel 1 by fitting and fixing the fixed shaft body 18 of the main body case portion 1 in this case.
9 is arranged in the recess 22, and the lower end of the wheel 10 projects below the panel 1. And the main body case 1
9 rotates so that both ends thereof are projected to the outside from the openings on both sides of the concave portion 22 or the main body case portion 19 is completely accommodated in the concave portion 22.

The lower rail 7 is provided with a groove portion 21 having a substantially V shape on the upper surface thereof, and a protrusion 21a is protruded upward from the groove bottom of the groove portion 21. Groove part 2
1 constitutes the rail portion 8. As described above, the lower rail 7 provided with the rail portion 8 on the upper surface has an inverted L-shaped upward direction at the side end portion on the side opposite to the direction in which the folding door 3 projects at the time of folding. The receiving part 9 has been started up. Here, the upper lateral piece of the inverted L-shaped falling prevention receiving portion 9 faces the upper surface portion of the lower rail 7.

An upper traveling body 5 is attached to the upper end of the end of the panel 1 opposite to the pivotal support 2. Here, the upper traveling body 5
As shown in FIG. 7, a vertical axis portion 14 that is vertically movably fitted in a fixed cylinder 24, a spring 25 that elastically biases the vertical axis portion 14 upward, and an upper end of the vertical axis portion 14. A horizontal guide roller 15 that is horizontally rotatably attached to the main body portion, and a main body portion 14 that is horizontally rotatably attached to the vertical axis portion 14
a and vertical guide rollers 16 provided on both sides of the front and rear of the main body 14a.

Then, the fixed cylinder 24 is attached to the pivot 2 of the panel 1.
The upper traveling body 5 is attached to the panel 1 by fitting and fixing it in a hole provided in the upper end of the opposite end. The upper rail 6 is formed with a groove 12 whose lower side is opened, and inner flanges 13 project from both side walls at a position slightly above the lower end opening end of the upper rail 6 of the groove 12, and A position above the inner flange portion 13 of the groove portion 12 is a rail groove portion 12.

The folding door 3, the upper rail 6, and the lower rail 7 to which the lower traveling body 4 and the upper traveling body 5 are attached have the above-described structure, and the upper rail 6 is the ceiling 30 or the upper end portion of the opening of furniture or the like. And the lower rail 7 is attached to the floor 3
1 or attached to the lower end of the opening of furniture or the like. Then, the wheels 10 of the lower traveling body 4 are movably placed on the groove portions 21 that form the rail portion 8 of the lower rail 7. In this case, the peripheral groove 20 provided on the outer peripheral portion of the wheel 10 is formed by the protrusion 21.
It is movably fitted into a. In addition, in this state, the fall prevention portion 11 provided on the lower traveling body 4 of the fall prevention receiving portion 9 that is erected at the side end portion on the side opposite to the direction in which the folding door 3 of the lower rail 7 projects at the time of folding. It is arranged slightly below the lower surface of the upper horizontal piece. On the other hand, the horizontally rotatable horizontal guide roller 15 of the upper traveling body 5 is connected to the rail groove portion 12 of the upper rail 6.
A vertical guide roller 16 which is rotatably disposed inside and vertically rotatable is movably disposed while being in elastic contact with the lower surface side of the inner flange portion 13.

As described above, the lower traveling body 4 and the upper traveling body 5 are mounted on the lower rail 7 and the upper rail 6 so that they can travel freely. The folding door 3 is in a closed state when the two panels 1 are spread in parallel with the upper and lower rails 6 and 7 in a closed state. The state in which the folding door 3 is rotated to fold the panel 1 so that the panel 1 pops out from the upper and lower rails 6 and 7 is the open state. When the closed state is changed to the open state and the open state is changed to the closed state, the vehicle is moved upward. The folding door 3 is unfolded or folded by running the body 5 on the upper rail 6 and the lower running body 4 on the lower rail 7. Further, when a plurality of folding doors 3 are attached, the folding doors 3 are made to run on the upper and lower rails 6 and 7 in the unfolded state, or run on the upper and lower rails 6 and 7 in the folded state. .

By the way, since the wheel 10 provided on the lower traveling body 4 is movably mounted on the rail portion 8 of the lower rail 7, the load of the folding door 3 is transmitted via the wheel 10 to the lower rail 7.
Thus, even if the folding door 3 is large and heavy, it can be stably supported. In this case, since the circumferential groove 20 on the outer periphery of the wheel 10 is fitted into the protrusion 21a, rattling in the lateral direction can be prevented and the vehicle can travel stably.

Further, since the horizontally rotatable horizontal guide roller 15 of the upper traveling body 5 is horizontally rotatably fitted in the rail groove portion 12 of the upper rail 6, the folding door 3 is laterally moved when traveling or folding. It is possible to prevent rattling while the horizontal guide roller 15 hits the inner side wall of the rail groove portion 12 when the rattling occurs and the running. Further, since the vertical guide rollers 16 of the upper traveling body 5 elastically abut against the lower surface of the inner flange portion 13, the upper traveling body 5 is smoothly moved along the longitudinal direction of the upper rail 6 while preventing rattling in the vertical direction. It can be driven to.

Here, in the case where the load of the folding door 3 is transmitted to and supported by the rail portion 8 of the lower rail 7 via the wheels 10, the folding door 3 is folded and jumps out from the upper and lower rails 6, 7. In this state, the force as shown by the arrow in FIG. 1 acts on the lower traveling body 4 and the wheel 10 tends to come off the rail portion 8. In this case, the fall prevention part 11 is placed above the fall prevention receiving part 9. Since it is arranged slightly below the lower surface of the horizontal piece, when the force in the direction of the arrow acts, the fall prevention portion 11 hits the upper horizontal piece of the fall prevention receiving portion 9 and the wheel 10 does not come off the rail portion 8. It is prevented.

FIG. 9 shows another embodiment of the upper traveling body 5 used in the present invention. In this embodiment, a horizontal guide roller 15 is provided on the upper end of the vertical axis portion 14 of the upper traveling body 5 so as to be horizontally rotatable, and a slider 17 that is long in the front-rear direction is provided below the horizontal guide roller 15 on the vertical axis portion 14. is there. Then, a horizontally rotatable horizontal guide roller 15 is movably arranged in the rail groove portion 12 of the upper rail 6, and a slider 17 is provided.
Is movably arranged in a state of elastically abutting on the lower surface side of the inner flange portion 13. Further, in this embodiment, the horizontal guide rollers 15 allow the horizontal guide rollers 1 to move when the folding door 3 rattles in the lateral direction during traveling or folding.
5 contacts the inner side wall in the rail groove 12 to prevent rattling while traveling. Also, slider 1
The upper traveling body 5 travels smoothly along the longitudinal direction of the upper rail 6 while preventing rattling in the vertical direction by hitting the lower surface of the inner flange portion 13.

FIG. 9 shows still another embodiment of the upper traveling body 5 used in the present invention. In this embodiment, the upper traveling body 5
At the upper end of the vertical axis 14 of the
Is rotatably attached, and a horizontal guide roller 15 is rotatably attached to the vertical axis portion 14 below the slider 17. In the case of this embodiment, the slider 17 is movably inserted in the rail groove portion 12, and the upper surface portion of the horizontally rotatable horizontal guide roller 15 is elastically contacted with the lower surface of the inner flange portion 13. In this embodiment, the slider 17 guides in the traveling direction, and the horizontal guide rollers 15 prevent horizontal rattling and vertical rattling.

By the way, in any of the above-described embodiments, the upper traveling body 5 is provided with the vertical guide roller 16 by the spring 25.
The slider 17, the horizontal guide roller 15 and the like elastically contact the inner flange portion 13 to prevent the folding door 3 from rattling in the vertical direction, so that the wheel 10 moves from the rail portion 8 of the lower rail 7. It prevents it from coming off. In addition, in the embodiment of FIG. 6, one wheel 10 is shown as an example, but two wheels 10 may be provided.

[0025]

According to the first aspect of the present invention, as described above, the side end on the side opposite to the direction in which the folding door of the lower rail provided with the rail portion on the upper surface protrudes at the time of folding. The fall prevention receiving part that rises upward in the lower part, and the wheels that are placed on the rails of the lower rails on the lower traveling body and that run, and the fall prevention that runs on the lower side of the fall prevention receiving part Since the fall prevention part can be brought into contact with the lower surface of the fall prevention receiving part, the load of the folding door can be supported by the lower rail, and the folding door can be made large or heavy. However, it can be stably supported, and even if the load of the folding door is made to be supported by the lower rail in this way, when the folding door is folded and protruded to the front side, the wheels are Trying to disengage from the rail Force in which the wheel when the lower surface side of the anti-receiving portion fall prevention part fall also act can be prevented that the disengaged from the rail unit.

According to the invention of claim 2 of the present invention, in addition to the effect of the invention of claim 1, a groove portion opened downward is formed in the upper rail, and the groove of the upper rail of the groove portion is formed. Inner flanges project from both side walls at a position slightly above the lower end opening, and the rail groove is located above the inner flange of the groove, and the upper traveling body is rotatably attached to the panel and moves up and down. A vertical axis portion that is freely and elastically biased upward by a spring, a horizontal guide roller that is rotatably attached to the upper end portion of the vertical axis portion, and a horizontal guide roller that is attached to the vertical axis portion below the horizontal guide roller. Consists of a horizontally long main body and vertical guide rollers provided on both sides of the front and rear of the main body. A horizontally rotatable horizontal guide roller is rotatably arranged in the rail groove of the upper rail and vertically rotatable. Vertical guide roller is not in contact with the lower surface of the inner flange. Since the upper rails do not support the load of the folding door, the horizontal guide rollers keep the folding door horizontal when it is running or when the folding rattles in the lateral direction. The guide rollers hit the inner wall in the rail groove to prevent rattling while traveling, and the vertical guide rollers prevent rattling in the vertical direction, while the upper traveling body is smoothly moved along the longitudinal direction of the upper rail. It can be driven. Moreover, since the folding door does not rattle in the vertical direction, the wheel is prevented from coming off the rail portion of the lower rail.

According to the invention of claim 3 of the present invention, in addition to the effect of the invention of claim 1, a groove portion opened downward is formed in the upper rail, and the groove of the upper rail of the groove portion is formed. Inner flanges project from both side walls at a position slightly above the lower end opening, and the rail groove is located above the inner flange of the groove, and the upper traveling body is rotatably attached to the panel and moves up and down. A vertical axis portion that is freely and elastically biased upward by a spring, a horizontal guide roller that is rotatably attached to the upper end portion of the vertical axis portion, and a horizontal guide roller that is attached to the vertical axis portion below the horizontal guide roller. It is composed of a slider, a horizontally rotatable horizontal guide roller is movably arranged in the rail groove of the upper rail, and the slider is movably arranged in contact with the lower surface of the inner flange. There is a folding door load on the upper rail. In a structure that does not support the horizontal guide rollers, when the folding door is laterally rattled during traveling or folding, the horizontal guide rollers prevent the rattling while traveling by hitting the inner wall in the rail groove. The upper traveling body can smoothly travel along the longitudinal direction of the upper rail while preventing the rattling in the vertical direction by the slider. Also,
Since the folding door does not rattle in the vertical direction, the wheels are prevented from coming off the rail portion of the lower rail.

[Brief description of drawings]

FIG. 1 is a side sectional view of a folding door of the present invention in a folded state.

FIG. 2 is a front view of the folding door in the same expanded state.

FIG. 3 is a side sectional view of the above.

FIG. 4 is a plan view of the above.

FIG. 5 is a schematic overall plan view of the above.

FIG. 6 shows an example of a lower traveling body used in the above,
(A) is a plan view, (b) is a front view, (c)
Is a side view, (d) is a sectional view, and (e) is a bottom view.

FIG. 7 shows an embodiment of an upper traveling body used in the above,
(A) is a plan view, (b) is a front view, (c)
Is a sectional view.

FIG. 8 shows another embodiment of the upper traveling body used in the above,
(A) is a plan view, (b) is a front view, (c)
Is a sectional view.

FIG. 9 shows still another embodiment of the upper traveling body used in the above, (a) is a plan view, (b) is a front view,
(C) is a sectional view.

[Explanation of symbols]

 1 Panel 2 Pivot 3 Folding Door 4 Lower Traveling Body 5 Upper Traveling Body 6 Upper Rail 7 Lower Rail 8 Rail Part 9 Falling Prevention Receiving Section 10 Wheel 11 Falling Prevention Section 12 Groove 13 Inner Collar 14 Vertical axis 15 Horizontal Guide Roller 16 Vertical guide roller 17 Slider

Front page continuation (72) Inventor Yoshiro Arakawa 1-547 Shitennoji, Tennoji-ku, Osaka City Matsuroku Co., Ltd. (72) Inventor Yasuo Katsuyama 1-547 Shitennoji, Tennoji-ku, Osaka City Matsuroku Co., Ltd.

Claims (3)

(57) [Claims] 1. A lower traveling body and an upper traveling body are respectively rotatable with respect to the panels at an end opposite to the pivotal support of a folding door in which one ends of two panels are foldably connected by a pivotal support. In the folding door device in which the lower traveling body is movably attached to the lower rail and the upper traveling body is movably attached to the upper rail, the folding door of the lower rail having the rail portion on the upper surface protrudes when folding. At the side end opposite to the direction, the fall prevention receiving part is started upward, and the wheels that are placed on the rail part of the lower rail on the lower traveling body to travel and the lower side of the fall prevention receiving part A folding door device, characterized in that it is provided with a fall-prevention portion which is located at a position where the fall-prevention portion is abuttable with the lower surface portion of the fall-prevention receiving portion. 2. An upper rail is formed with a groove portion that opens downward, and inner flange portions project from both side walls at a position slightly above the lower end opening end of the upper rail of the groove portion, and the inner flange portion of the groove portion is protruded from the inner flange portion. Also has a rail groove at the upper position, the upper traveling body is rotatably attached to the panel, vertically movable, and elastically biased upward by a spring, and an upper end of the vertical axis. It consists of a horizontal guide roller that is rotatably attached to the main body, a horizontally long main body that is attached to the vertical axis below the horizontal guide roller, and vertical guide rollers that are provided on both sides of the front and rear of the main body. A free horizontal guide roller is movably arranged in the rail groove of the upper rail, and a vertically rotatable vertical guide roller is movably arranged in contact with the lower surface of the inner flange portion. The folding door device according to claim 1, wherein . 3. An upper rail is formed with a groove portion that opens downward, and inner flange portions project from both side walls at a position slightly above the lower end opening end of the upper rail of the groove portion, and from the inner flange portion of the groove portion. Also has a rail groove at the upper position, the upper traveling body is rotatably attached to the panel, vertically movable, and elastically biased upward by a spring, and an upper end of the vertical axis. It is composed of a horizontal guide roller that is rotatably mounted on the upper rail and a slider that is mounted on the vertical axis below the horizontal guide roller, and the horizontally rotatable horizontal guide roller is movably arranged in the rail groove of the upper rail. The folding door device according to claim 1, wherein the slider is provided so as to be movable while being in contact with the lower surface side of the inner flange portion.