JPH07331949A - Opening/closing and supporting structure of sliding door - Google Patents

Abstract

PURPOSE:To open or close a sliding door without providing a rail or a recessed groove on a floor surface. CONSTITUTION:The upper edge 10a of a sliding door 10R is guided in the opening/closing direction while it is engaged with the groove 3b of an upper frame 3. Sash rollers 40, 41 rolling on the flat surface 4a of a lower frame 4 are rotatably supported on the lower face 10c of the sliding door 10R, and a guide groove 13 extending in the opening/closing direction is recessedly provided on the face 10c. On the part of the lower frame 4 concealed by the sliding doors 10R, 10L, a pair of guide wheels 33 spacedly arranged on a straight line extending in the opening/closing direction of the sliding doors 10 are provided. When the sliding door 10R is placed on a pair of the guide wheels 33 so as to roll the guide wheels 33 in the guide groove 13, the guide wheels 33 and the guide groove 13 are engaged with each other in the groove width direction, the guide groove 13 namely the lower edge 10c of the sliding door 10R can be guided in the opening/closing direction, and hence it is unnecessary to provide a rail or a recessed groove on a floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for supporting a sliding door that opens and closes an opening of a building so that it can be opened and closed without providing a groove or rail on the floor surface.

[0002]

2. Description of the Related Art Conventionally, for example, in general houses, various sliding doors such as shoji doors and sliding doors for partitioning rooms, wooden or aluminum sash partitioning doors for partitioning rooms from corridors, and entrance sliding doors have been used. The lower end of each of these sliding doors is engaged with a groove formed in the sill or the floor surface or a rail provided on the sill or the floor surface to be guided in the opening / closing direction.

[0003]

By the way, if a groove or rail is provided on the sill or floor for opening and closing the sliding door as described above, a step will be formed, so that a foot may get caught in this step or dust may accumulate. It is inconvenient. Particularly in recent years, it has been desired to make the floor completely flat even in a general house in order to make it easier for the elderly to walk or move indoors with a wheelchair, and a sliding door that can be opened and closed without providing a groove or rail. Is required. Therefore, it is conceivable to use a hanging sliding door that is opened and closed in a state of being hung from a rail arranged on the ceiling, such as used in factories. However, it is not easy to attach a hanging rail in a general house, etc., and it is not appropriate to use such a hanging type sliding door because the appearance is deteriorated.

With respect to such a problem, Japanese Patent Laid-Open No. 4-35
7287, "A plurality of sliding doors, a rail fitting groove extending to the upper surface of the sliding door, and a rail extending to the lower surface of the upper frame of the opening and loosely fitted in the rail fitting groove. A guide part fitting groove extending to a lower surface of the sliding door and a part of the guide part fitting groove provided on an upper surface of the lower frame of the opening and loosely fitted in the guide part fitting groove to be concealed when the sliding door is opened and closed. A sliding door for a building, which is provided with a guide portion and a rotating member for traveling rotatably supported on the lower surface side of the sliding door. "

However, in the sliding door for a building disclosed in the above-mentioned publication, since the guide portion is only partially provided on the upper surface of the lower frame, it is loosely fitted in the fitting groove of the sliding door. When opening and closing the building sliding door disclosed in the above publication, the lower end of the sliding door fluctuates and the opening and closing operation cannot be performed smoothly. In addition, when the sliding door is opened and closed, the guide portion slides with the fitting groove provided in the sliding door, so that the wall surface of the fitting groove is worn during long-term use and the guide portion The fitting becomes looser, and the fluctuation when opening and closing the sliding door is further increased.

Therefore, the present invention has been made in view of the above situation, and it is possible to flatten a floor surface without the need to provide a groove or rail for guiding a sliding door on the floor surface. It is an object of the present invention to provide a sliding door open / close support structure that can be smoothly opened / closed and that has excellent durability.

[0007]

Means for Solving the Problems The above-mentioned problems are described in claim 1 of the present invention, wherein a sliding door reciprocating in the left-right direction to open and close an opening of a building and an upper end portion of the sliding door are engaged. Guide means provided above the opening for guiding the opening and closing, a door roller attached to the sliding door and rolling on the floor surface of the building, and an opening and closing direction attached to the sliding door and facing the floor surface Rotatably supported by a guide member extending in the vertical direction and a support shaft that is attached to a part of the floor of the building that is always below any part of the sliding door and extends vertically and horizontally with respect to the opening / closing direction of the sliding door. The guide member and a plurality of guide wheels that are arranged at intervals on a straight line that extends in the opening and closing direction of the sliding door and that engages in the width direction of the sliding door are provided. When engaged with To be achieved by opening and closing the support structure of the sliding door, characterized in that the guide member is placed on the sliding door to engage the guide wheels on the guide on the wheel.

[0008]

In the opening / closing support structure for the sliding door according to the first aspect of the present invention, the upper end portion of the sliding door is engaged with the guide means provided in the upper portion of the opening to be guided in the opening / closing direction. Further, when the sliding door is placed on the guide wheel so that the guide wheel engages with the guide member, the guide wheels are arranged at intervals on a straight line extending in the opening / closing direction and are engaged with the guide member in the width direction. Therefore, the lower end of the guide member, that is, the sliding door is guided so as to move in the opening / closing direction. As a result, the lower end of the sliding door can be guided in the opening / closing direction without providing a groove or rail for guiding the lower end of the sliding door in the opening / closing direction on the floor surface. It does not occur.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sliding door opening / closing support structure according to the present invention will be described below in detail with reference to the drawings. Here, FIG. 1 is a front view illustrating an opening / closing support structure of a sliding door according to a first embodiment of the present invention, FIG. 2 is a sectional view of a general portion of the sliding door shown in FIG. 1, and FIG. 3 is an enlarged view of the door roller shown in FIG. 4 is an enlarged sectional view of the guide ring shown in FIG. 1, FIG. 5 is a side view of the guide ring assembly shown in FIG. 1, and FIG. 6 is a sliding door of the second embodiment according to the present invention. 7 is a front view for explaining the open / close support structure of FIG. 7, FIG. 7 is a side view of the guide wheel assembly shown in FIG. 6, and FIG. 8 is a side sectional view for explaining the open / close support structure of a sliding door according to a third embodiment of the present invention. It is needless to say that the present invention is not limited by the description and drawings in the above-described embodiments, and various modifications can be made without departing from the object thereof.

Embodiment 1 As shown in FIG. 1, an opening / closing support structure 100 for a sliding door according to Embodiment 1 is attached to an opening 2 provided in a wall 1 of a building and opened / closed in a lateral direction in the drawing. It has a pair of sliding doors 10R and 10L. An upper frame 3 is attached to the upper edge of the opening 1, a lower frame 4 is attached to the lower edge, and vertical frames 5R and 5L are attached to the left and right edges. As shown in FIG. 2, the lower surface 3a of the upper frame 3 is provided with a pair of grooves 3b and 3c as guide means so as to extend in the longitudinal direction of the upper frame 3. On the other hand, the upper surface 4a of the lower frame 4 is made flat and flush with the floor surface 6a of the building so that there is no step with respect to the floor surface 6a.

Since the pair of sliding doors 10R and 10L have exactly the same structure, one sliding door 10R will be described as an example in the following description. As shown in FIG. 2, a convex portion 10b is provided on the upper edge 10a of the sliding door 10R so as to project over the entire area in the opening / closing direction of the sliding door 10R. Then, the convex portion 10b is provided with the groove 3b provided in the upper frame 3.
Is slidably fitted in the opening / closing direction, so that the sliding door 1
The upper end of 0R is guided in the opening / closing direction.

Further, as shown in FIG. 2, the sliding door 10R is provided.
A groove 10d is provided on the lower surface 10c of the groove so as to extend in the opening / closing direction of the sliding door, and a guide rail 13 formed by bending a thin metal plate is fitted to the groove 10d so as to fit therewith. There is. And this guide rail 1
3 is formed with a pair of inclined surfaces 13c and 13d which are symmetrical with respect to the center line in the width direction and which are combined so as to open toward the floor surface 6 side.

As shown in FIG. 1, on the lower surface 10c of the sliding door 10R, a door wheel 40 is on the front edge 10e side of the sliding door 10R, a door wheel 41 is on the rear edge 10f side, and is perpendicular to the opening / closing direction of the sliding door. It is also supported by a horizontal rotating shaft. As shown as a cross-sectional view in FIG. 3, the door rollers 40 and 41 have a frame 43 for attaching to the sliding door 10R and a wheel 44 pivotally supported by the frame 43, and an outer peripheral surface of the wheel 44. 44a has a groove 44b
Is engraved. The groove 44b has a width and a depth such that the groove 44b does not interfere with a guide wheel 33, which will be described later with an imaginary line in FIG. 3, when rolling on the upper surface 4a of the lower frame 4. .

As shown in FIG. 1, a portion of the lower frame 4 that is always under any one of the sliding doors 10R and 10L, that is, even if the sliding doors 10R and 10L are opened and closed, it is exposed to the outside. The concave portion 4b is provided in a portion where there is no
A guide wheel assembly 30 is provided inside thereof. As shown in FIGS. 4 and 5, the guide wheel assembly 30 has a rectangular parallelepiped case 3 fitted in the recess 4b.
1, a lid 32 that closes the opening of the case 31, and a shaft 3 that extends horizontally across the side wall 31a of the case 31.
5 is swingably supported and sliding door 10R
A pair of frames 34 each having a U-shaped cross section extending in the opening / closing direction of 10 L, and a total of four guide wheels 3 rotatably supported by two of each of the frames 34.
3 and 3. The surface 32a of the lid 32 is flush with the surface 4a of the lower frame 4 so that no step is formed. Further, the guide wheels 33 are each projected upward from an opening 32b provided in the lid 32 of the case 31, and are aligned in a straight line at intervals L in the opening / closing direction of the sliding doors 10R and 10L. Although provided, they are fixed so as not to be displaced in a direction perpendicular to the opening / closing direction of the sliding doors 10R and 10L. Further, as shown in FIG. 4, when the sliding doors 10R and 10L are placed on the guide wheels 33 so that the guide wheels 33 roll in the grooves of the guide rails 13 provided on the lower surfaces thereof, respectively, Both ends of the outer peripheral surface of the wheel 33 in the width direction are in contact with the inclined surfaces 13c and 13d of the guide rail 13, respectively.

Next, the sliding door opening / closing support structure 1 of the first embodiment
The operation of 00 will be described by taking the case of opening and closing the sliding door 10R as an example. The lower surface 10 of the sliding door 10R
In addition to rolling the door wheels 40 and 41 provided on c on the surface 4a of the lower frame 4, the pair of guide wheels 33 rolls in the groove of the guide rail 13 provided on the lower surface 10c thereof. Since it is mounted on the pair of guide wheels 33, it can be opened and closed smoothly. At this time, since the convex portion 10b provided on the upper edge of the sliding door 10R is loosely fitted in the groove 3b provided on the upper frame 3, the upper end of the sliding door 10R is guided by the upper frame 3 in the opening / closing direction. It Further, in the groove of the guide rail 13, as described above, the pair of inclined surfaces 13c.
13d is provided, and both ends of the outer peripheral surface of the guide wheel 33 in the width direction are brought into contact with the inclined surfaces 13c and 13d, respectively, so that the guide rail 33 rolls.
When the sliding door 10R is pressed against the guide wheel 33 by its own weight, the center of the guide rail 13 in the groove width direction coincides with the center of the guide wheel 33 in the width direction, and the guide rail 13, that is, the lower end portion of the sliding door 10R is a pair of The guide wheels 33 guide the pair of guide wheels 33 in a lined direction, that is, in the opening / closing direction of the sliding door without rattling in the groove width direction.

Further, the pair of guide wheels 33 are provided on the frame 3
Since the sliding door 10R is supported by 4 and swings around the swing shaft 35, even when the lower surface 10c of the sliding door 10R is not parallel to the upper surface 4a of the lower frame 4, both of the pair of guide wheels 33 are formed. Securely contacts the groove of the guide rail 13. As a result, the guide wheel 33 does not separate from the groove of the guide rail 13 and cannot guide the sliding door 10R in the opening / closing direction. Further, in the sliding door opening / closing support structure 100 of the first embodiment, when the sliding door 10R is closed,
The door roller 40 on the front edge 10e side of the sliding door 10R rolls in contact with the surface 4a of the lower frame 4, and the other door roller 41 slightly floats from the surface 4a of the lower frame 4, and conversely, the sliding door 1
When the 0R is opened, the door roller 41 on the trailing edge 10f side of the sliding door 10R rolls in contact with the surface 4a of the lower frame 4, and the other door roller 40 is slightly lifted from the surface 4a of the lower frame 4. . Therefore, when the sliding door 10R is opened and closed, one of the door rollers 40 and 41 rolls while coming into contact with the surface 4a of the lower frame 4 and sharing the weight of the sliding door 10R, so that the sliding door 10R can be opened and closed without wobbling. It can be opened and closed securely in any direction.

Further, on the outer circumference of the door rollers 40 and 41,
Since the groove 44b is provided so as not to interfere with the guide wheel 33, the door rollers 40 and 41 can roll over the guide wheel 33 as shown in FIG. As a result, the distance L between the pair of guide wheels 33 can be maximized.

In addition, in the first embodiment, a dowel 45 as an engaging member that engages with the groove of the guide rail 13 is provided in a projecting manner on the surface 4a of the lower frame 4 in the vicinity of the vertical frame 5R. . As a result, when the sliding door 10R is fully closed,
Even if the front edge 10e of the sliding door 10R is pushed in a direction perpendicular to the opening / closing direction, the sliding door 10R does not wobble.

In the first embodiment, the guide rail 1
3 is provided with a groove formed by the inclined surfaces 13c and 13d. On the contrary, a pair of inclined surfaces symmetrical to the center line in the groove width direction of the guide rail and intersecting on the guide wheel side are provided. It goes without saying that the convex portion may be formed by and the groove that fits with the convex portion may be provided on the outer peripheral surface of the guide wheel.

Embodiment 2 As shown in FIG. 6, in the sliding door opening / closing support structure 200 of Embodiment 2, the sliding door 20 is a heavy-open sliding door having a large opening / closing width. Accordingly, in order to support the heavy weight of the sliding door 40, the three door rollers 40, 41, 42 are attached to the lower surface 20c of the sliding door 20 at equal intervals and roll on the surface 4a of the lower frame 4. Is being done. Further, each of the pair of guide wheels 53 of the guide wheel assembly 50 attached to the lower frame 4 is supported by the frame 54 and individually swingable around the shaft 55 and the spring 56. Is urged toward the guide rail 13.

Next, the opening / closing operation of the sliding door opening / closing support structure 200 of the second embodiment constructed as described above will be described. First, the upper end portion of the sliding door 20 is reliably guided in the opening / closing direction because the convex portion 20b is loosely fitted in the groove 3b provided in the upper frame 3. Further, the sliding door 20 has three door rollers 40, 41.4 attached to the lower surface 20c thereof.
2 runs on the flat surface 4a of the lower frame 4.
The pair of guide wheels 53 are swingable around the swing shaft 54 and are biased by the spring 55 to be pressed into the groove of the guide rail 13. As a result, when the door rollers 40, 41, 42 travel on the flat surface 4a of the lower frame 4, the inclination of the lower frame 4 and the door wheels 40, 41, 42
The lower surface 20c of the sliding door 20 and the surface 4 of the lower frame 4 due to variations in attachment adjustment of the sliding doors 41 and 42 to the sliding door 20.
Even if the distance between the pair of guide wheels 53 and a is changed, the pair of guide wheels 53 are independently pressed by the groove of the guide rail 13, so that the sliding door 20 can be reliably guided in the opening / closing direction.

Embodiment 3 As shown in FIG. 8, in the sliding door opening / closing support structure 300 of Embodiment 3, a guide rail 70 having rack teeth 71 is provided on the lower surface of the sliding door 60, and this guide rail is also provided. 70 and a pair of guide wheels 94 that engage with the width direction
A gear that meshes with the rack teeth 71 is formed on the outer peripheral surface of the. The guide wheel 94 is driven to rotate by a motor 90.

The guide rail 70 is provided with a pair of vertical wall surfaces 72 that engage with the guide wheel 94 in the width direction, and rack teeth 71 are provided on the bottom surface extending opposite the surface 4a of the lower frame 4 with sliding doors 60. It is arranged so as to extend in the opening / closing direction.

The guide wheel support frame 84 is similar to the guide wheel support frame 34 of the first embodiment described above in that the support shaft 8 is provided.
5, the pair of guide wheels 94 is always meshed with the rack teeth 71 of the guide rail 70. The guide wheel support frame 84 has a motor 90 for rotating the guide wheel 94.
A pinion gear 91 fitted to the drive shaft of the motor 90 and a pair of reduction gears 92 meshing with the pinion gear 91 are rotatably attached. The guide wheel 94 has a gear 93 that meshes with the reduction gear 92.
Are mounted coaxially. The motor 90 is shown in FIG.
Alternatively, the operation can be controlled by operating a switch (not shown) provided on the vertical frame 5 of the opening 2 of the building shown in FIG. 6 or the wall 1 of the building, and thus, by operating the switch. The sliding door 60 can be opened and closed by the driving force of the motor 90.

That is, in the opening / closing support structure for the sliding door of the third embodiment, the sliding door 60 is opened / closed by the driving force of the motor 90, so that even the elderly can easily open / close the sliding door 60. Further, in the third embodiment, the motor 90 is attached to the guide wheel support frame 84.
Since the gears 91, 92, and 93 are attached, the rack teeth 7 provided on the lower surface of the sliding door 60
1 and the gears provided on the outer peripheral surface of the guide wheel 94 and the rack teeth 71 do not fail to mesh with each other. Further, since the motor 90 and the like are arranged in the recess provided in the lower frame 4, not only does it hinder walking but also the appearance of the building is not hindered.

In the third embodiment, the sliding door 60
Although the rack teeth 71 are provided on the sliding door 71, when the weight of the sliding door is not so large, the sliding door is opened by driving the guide wheel 33 of the first embodiment or the guide wheel 53 of the second embodiment with a motor to rotate. It can be opened and closed.

[0027]

Since the open / close support structure for the sliding door of the present invention is constructed as described above, the following excellent effects can be obtained. That is, in the open / close support structure for a sliding door of the present invention, it is not necessary to provide a groove or rail for guiding the sliding door in the opening / closing direction on the floor surface, so that there is no step on the floor surface where the sliding door is provided. Can be flat. This makes it possible to provide an optimal open / close support structure for a sliding door, which is suitable for housing for the elderly, because the elderly will not be caught in a step when walking. In the sliding door opening / closing support structure of the present invention,
A door roller that rolls on the floor is provided at the lower end of the sliding door, and a guide member extending in the opening / closing direction is provided at the lower end of the sliding door so as to face the floor, and the guide member and a pair of guide wheels are engaged. Since the sliding door is placed on the guide wheel so as to fit together, the sliding door can be smoothly opened and closed. Further, since the guide wheel rolls while engaging with the guide member, the guide member does not easily wear even if the sliding door is repeatedly opened and closed, and thus a sliding door open / close support structure having excellent durability is provided. You can Further, in the open / close support structure for a sliding door of the present invention, a guide wheel for guiding opening / closing of the sliding door is provided.
Since it is provided in a part of the floor that is always hidden by the sliding door, it does not hinder the appearance of the building and the installation space can be minimized. Further, the sliding door can be automatically opened and closed by rotating the guide wheel by a motor or rotating the gear that meshes with the rack teeth provided on the sliding door by the motor. Thereby, for example, an elderly person can easily open and close the sliding door.

[Brief description of drawings]

FIG. 1 is a front view illustrating an opening / closing support structure for a sliding door according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG.

3 is a cross-sectional view taken along the line III-III shown in FIG.

FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG.

5 is a side view of the guide wheel assembly shown in FIG. 1. FIG.

FIG. 6 is a front view illustrating an opening / closing support structure for a sliding door according to a second embodiment of the present invention.

7 is a side view of the guide wheel assembly shown in FIG.

FIG. 8 is a side sectional view of an opening / closing support structure for a sliding door according to a third embodiment of the present invention.

[Explanation of symbols]

 1 Building Wall 2 Opening 3 Upper Frame of Opening 4 Lower Frame of Opening 5R Vertical Frame of Opening 5L Vertical Frame of Opening 6 Floor of Building 10R Sliding Door of Example 1 10L Sliding Door of Example 1 10a Upper Edge of Sliding Door 10b Upper Edge Convex portion 10c Lower surface of sliding door 10d Groove on lower surface 13 Guide rail 20 Sliding door of Example 2 30 Guide wheel assembly 31 Case 32 Case lid 33 Guide wheel 34 Guide wheel support frame 35 of Example 1 Swing of Example 1 Shaft 40 Door Car 41 Door Car 42 Door Car 43 Frame of Door Car 44 Wheel of Door Car 45 Dowel 50 Guide Wheel Assembly of Example 2 51 Case 52 Cover 53 Guide Wheel 54 Guide Wheel Support Frame 55 Swing Shaft 56 Spring 60 Sliding Door of Example 3 70 Guide Rails of Example 3 71 Rack Teeth 72 Vertical Walls 80 Guide Wheel Assembly of Example 3 81 Case 82 Lid 84 Guide Closing the support structure of the sliding door of the support frame 85 pivot shaft 90 motor 91 pinion 92 reduction gear 93 gear 94 guide wheels 100 Example 1 of the opening and closing support structure of the sliding door opening and closing the support structure 200 in Example 2 of the sliding door 300 Example 3

Claims (7)

[Claims] 1. A sliding door that reciprocates in the left-right direction to open and close an opening of a building, a guide means provided at an upper portion of the opening that engages with an upper end portion of the sliding door to guide the opening and closing, and the sliding door. A door roller mounted on the floor of the building and rolling on a floor surface of the building, a guide member attached to the sliding door and extending in an opening / closing direction facing the floor surface, and any part of the sliding door on the floor of the building. Attached to a lower part of the sliding door, rotatably supported by a support shaft extending vertically and horizontally with respect to the opening / closing direction of the sliding door, and arranged at intervals on a straight line extending in the opening / closing direction of the sliding door. Is
And the guide member and a plurality of guide wheels engaged in the width direction thereof, wherein the upper end portion of the sliding door is engaged with the guide means, and the guide member is engaged with the guide wheel. An open / close support structure for a sliding door, characterized in that the above is mounted on the guide wheel. 2. The guide wheel is swingably supported by a swing shaft extending in the opening / closing direction of the sliding door and having a longitudinal center portion extending vertically and horizontally with respect to the opening / closing direction of the sliding door. The open / close support structure for a sliding door according to claim 1, wherein the support member is disposed so as to sandwich the swing shaft. 3. The open / close support structure for a sliding door according to claim 1, wherein the guide wheels are biased by biasing means and pressed against the guide member. 4. A groove is provided in an outer peripheral surface of the door roller so that the door roller rolls on the floor surface across the guide wheel. Opening / closing support structure for the sliding door described in any of the above. 5. The open / close support structure for a sliding door according to claim 1, wherein the guide wheel is rotationally driven by a motor. 6. The sliding door is provided with rack teeth extending in the opening / closing direction, and the sliding door is opened / closed by driving a gear meshing with the rack teeth by a motor. Opening and closing support structure of the sliding door. 7. The engaging member mounted on the floor surface, which engages with the tip end portion of the guide member in the width direction when the sliding door is fully closed. The open / close support structure for a sliding door according to any one of 1 to 6.