JP2001214680A - Joint folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint folding door capable of having independent efficiency, being maintained by stabilizing a shape even in a semi-opened state and, at the same time, being used for wide varities of uses such as gate door having a wide frontage, shutter or the like without wastefully occupying a wide space for the door when it is opened. SOLUTION: Long sides of a large number of doors 1 longer than is wide are connected to each other with hinges 2 to form a folding screen type folding door main body 3, casters 4 are provided to the lower end face of the folding door main body 3, the casters 4 are guided to two rails 5 installed in parallel along the longitudinal direction of the folding door main body 3 to move the folding door main body 3, and a storage space for the folding door main body 3 is provided to either one of longitudinal positions of the rails 5 by widening an interval between the rails 5 in comparison with the other part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting folding door which moves while being guided by two rails and has a reduced overall length at a storage position and can be used for a gate or a shutter.

[0002]

2. Description of the Related Art In addition to sliding doors and double doors, gates include those that expand and contract. As shown in FIG. 9, the telescopic gate generally has a plurality of rectangular frame members 50, each of which has a link member 52 and is connected to each other by a pin. There is a point 54, and the link member 52 expands and contracts like a pantograph, so that the gate as a whole expands and contracts. The lower part of the frame member 50 is provided with a caster 55, and some of them run on the ground as they are, while others run by being guided by rails laid on the ground.

[0003] Such a telescopic gate is extremely unstable when stopped in a half-open state, and may be inclined by the wind or expand and contract by itself. In the first place, the connection structure using the pantograph mechanism has a complicated structure, is easily broken, and is not sufficiently strong, and is installed only in a narrow frontage of about 3 m at most.

[0004] In addition to this, there is a door that is generally called an folding door as a door that expands and contracts. As shown in FIGS. 10A and 10B, a folding door is formed by connecting two or more door plates 56 with a hinge 57 so as to be bent. The door plate 56 is provided and guided by the upper and lower rails 59 so that the door plate 56 can be closed, folded, and opened. Such folding doors are not self-supporting, and cannot be used as gates because rails 59 are always required above the door plate 56, and their applications are limited mainly to bathroom entrances and closet doors.

[0005]

SUMMARY OF THE INVENTION The present invention is self-supporting, has a stable configuration even in a half-open state, and the door does not wastefully occupy a wide space when the door is released. An object of the present invention is to provide a connecting folding door that can be used for a wide range of applications such as a gate and a shutter.

[0006]

In order to achieve the above object, a connecting folding door according to the present invention forms a folding screen type folding door body by connecting a number of vertically long doors with hinges between long sides thereof. A caster is provided at the lower end surface of the folding door main body, and the caster is guided by two rails installed in parallel along the longitudinal direction of the folding door main body so that the folding door main body moves, and any position in the longitudinal direction of the rail is provided. The storage space for the folding door body is provided by making the interval between the rails wider than other parts.

Since the folding door body is always used while being folded into a folding screen type, it is self-supporting, resistant to external forces such as wind, and can be used for a gate with a wide frontage. The rails need not necessarily be straight as long as they are parallel to each other, and may be arcs. Although the folding door itself can be expanded and contracted, the degree of expansion and contraction is determined by the interval between the two rails. By increasing the interval, the folding door main body shrinks to shorten the length, and conversely, expands when the interval is reduced. The storage space can be at any position in the longitudinal direction of the rail, but it is basically located at the end of the rail.When the gate is opened by moving the folding door to the corner, the folding door shrinks automatically. It is stored compactly. The door may be a plate-like member, or may be a lattice-shaped member made of a shape material such as an aluminum alloy.

In the case of a gate or the like in which the height of the folding door main body is not so high, the rail may be provided only below the folding door main body, but as in the invention according to claim 2, the rail is also provided above the folding door main body. If two rails and casters are installed as described above, it can be used for a tall object such as a garage shutter.

[0009] The folding door main body moves integrally like a sliding door by pushing or pulling the front or rear door by hand. At this time, since the folding door main body is a folding screen type, the force propagates in a zigzag manner inside, and when the folding door main body is long and heavy, there is a possibility that the hinges, the bases of the casters, etc. may be unreasonable. Therefore, by providing the auxiliary connecting member that connects the bent portions of the folding door body as in the invention according to claim 3, the force is transmitted linearly, so that the folding door body can be moved smoothly, and a failure occurs. Can be reduced. The auxiliary connecting member may be a chain or belt, but it only works when moving the folding door body in the direction of pulling, so to work on both pushing and pulling, something like a tension bar that bends in the middle It is better to use

Further, the belt is passed in the longitudinal direction while passing through the guide provided at the bent portion of the folding door body, and the leading end is fixed to the first door, and the belt is inserted into the storage space of the folding door body. , The folding door can be automatically opened. If the guide has a structure that clamps the belt when the angle of the bent portion reaches a certain angle, the belt also functions as the auxiliary connecting member.

[0011]

1 to 5 show an embodiment used as a gate. The folding door main body 3 is formed by connecting a number of vertically long doors 1 with hinges 2 at left and right side edges, and forming a folding screen. Each door 1 is formed by assembling an aluminum alloy profile. A caster 4 is attached to the lower end of each door 1 at the same position toward the end. The caster 4 is a free caster with no eccentricity that can swing its head. When the arrangement of the casters 4 of the folding door main body 3 is viewed as a whole, the casters 4 are arranged on two parallel straight lines.

On the ground, a guide 2 for guiding the casters 4 is provided.
The rails 5, 5 are laid in parallel. The rail 5 is provided with a groove that is somewhat wider than the width of the wheels of the casters 4. Also, as shown in FIG. 1, the rail 5 is provided with a non-parallel portion 10 in the shape of a letter "C" to increase the distance between the rails at the left end in the figure. When the folding door body 3 passes through the no-parallel portion 10, the angle of the bent portion by the hinge 2 changes, and the entire length expands and contracts. The place where the interval between the rails 5 and 5 is widened serves as a storage space for the folding door main body. Here, the folding door main body is stored compactly with the bent portion tightly bent. In the illustrated example, the non-parallel part 10 changes the distance between the rails by bending both the rails 5 and 5,
Only one of the rails 5 may be bent.

The above is the basic structure of the connecting folding door of the present invention. Next, additional mechanisms will be described. The folding door body 3 moves on the rails 5 and 5 while being folded in a folding screen shape by pushing and pulling by hand. At that time, the propagation of force is made linearly, For the purpose of encouraging smooth movement, the bent portions are connected to each other by a strut 6 as shown in FIGS. The strut 6 connects the two connecting arms 11a and 11b with the pin 1
2, and the ends of the arms 11a, 11b are pivotally supported on the side edges of the doors 1, 1 via brackets 13, 13. The strut 6 is provided with a stopper 14 at the edge of the upper connecting arm 11a so as not to bend outward from a state in which the strut 6 is completely extended. When the folding door body 3 is in the closed position, the tension bar 6 extends straight and is in a stretched state, and the folding door body 3 is stretched.
Is maintained, and when it is in the open position, that is, the storage space, it is folded inward.

When the gate is opened (when the state is shifted from the state shown in FIG. 1B to the state shown in FIG. 1A), when the folding door main body 3 passes through the no-parallel portion 10, the above-described strut rod 6 is released. I need to break it. Therefore, the pin 12 connecting the connecting arms 11a and 11b is extended downward to support the roller 15 at the tip, and the inclined guide 16 is installed on the ground, and the roller 15 is pressed against the inclined guide 16 when pushed. As a result, the strut 6 is automatically broken.

FIG. 6 shows another embodiment, in which a belt 8 is passed horizontally in the longitudinal direction while passing through a guide 7 provided at a bent portion of the folding door main body 3 so that the leading end is the leading end. The belt 8 is fixed to the door 1, and the belt 8 is wound by a winding device 9 installed in a storage space of the folding door body 3.
The gate can be opened automatically. The take-up device 9 includes a motor 17 and a take-up reel 18. When an operation button 19 is pressed, the motor 17 is activated, the take-up reel 18 rotates, the belt 8 is taken up, and the folding door body 3 is drawn. The gate is manually closed.

The guide is provided with a hinge 2 as shown in FIGS.
Of the door 1 and two auxiliary rollers 22, 22 projecting sideways from the side end surface of the door 1 so that the bent portion has a fixed angle. When opened, as shown in FIG. 7 (a), the belt 8 is sandwiched between the three rollers 21, 22, 22 and locked, and when the bent portion is closed, as shown in FIG. Since the rollers 22 are separated from the main roller 21, the belt 8 is in a free state. By having this mechanism, the belt 8 works in the same manner as the above-described strut 6, and the force is efficiently transmitted through the belt 8, so that the gate can be opened and closed smoothly.

Although the drawings only show the form as a gate provided with a rail only below the folding door main body, if a rail is provided and guided on the folding door main body in the same manner, it is wide as a shutter for a garage or the like. Can also be used for openings.

[0018]

According to the connecting folding door according to the first aspect of the present invention, since the folding door body is always bent in a folding screen shape, it is self-supporting, strong against external force such as wind, and can be used for a gate with a wide frontage. . The folding door itself does not expand and contract by itself,
It can be stored compactly in the storage space.

According to the second aspect of the present invention, the shutter can be used even in a wide opening having a height such as a garage.

According to the third aspect of the present invention, since the auxiliary connecting member transmits the force linearly, the folding door body can be moved smoothly.

Further, according to the present invention, the door can be automatically opened by the power of the motor. The connecting folding door of the present invention is a new type of door that combines a conventional telescopic gate and a folding door, and furthermore, a sliding door, and has a potential of unknown use over a wide range of fields.

[Brief description of the drawings]

1A and 1B are top views showing an embodiment in which a connecting folding door according to the present invention is a gate, showing a state where the gate is opened and a state where the gate is closed.

FIG. 2 is a partially enlarged top view of FIG. 1;

FIG. 3 is a transverse sectional view showing the arrangement of rails and casters in the same portions as in FIG. 2;

FIG. 4 is a view as viewed from an arrow X in FIG. 2;

FIG. 5 is a view as viewed in the direction of the arrow Y in FIG. 2;

6 (a) and 6 (b) are a top view and a front view showing another embodiment of the connecting folding door according to the present invention.

FIGS. 7A and 7B are top views in which a guide portion is enlarged. FIG.

FIG. 8 is an enlarged front view of a guide portion.

FIG. 9 is a front view of a conventional telescopic gate.

10A and 10B are top views showing the structure of a conventional folding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Hinge 3 Folding door main body 4 Caster 5 Rail 6 Strut rod (auxiliary connecting member) 7 Guide 8 Belt 9 Winding device

Claims (4)

[Claims] A large number of vertically elongated doors (1) are connected to each other by hinges (2) between long sides thereof to form a folding screen main body (3), and a caster (3) is provided on a lower end surface of the folding door main body (3). 4), wherein the caster (4) is guided by two rails (5) installed in parallel along the longitudinal direction of the folding door body (3), and the folding door body (3) moves. 5) At any position in the longitudinal direction of (5), the rail (5)
A connecting folding door characterized in that a space between the folding door bodies (3) is provided by widening a space between the folding doors. 2. A large number of vertically elongated doors (1) are connected to each other by hinges (2) between their long sides to form a folding screen main body (3), and casters (3) are provided on upper and lower end surfaces of the folding door main body (3). 4), wherein the caster (4) is guided by two upper and lower rails (5) installed in parallel along the longitudinal direction of the folding door body (3), and the folding door body (3) moves. A connecting folding door, characterized in that a storage space for a folding door body (3) is provided at any position in the longitudinal direction of the rail (5) with a greater space between the rails (5) than at other portions. 3. A connecting folding door according to claim 1, further comprising an auxiliary connecting member for connecting the bent portions of the folding door body. 4. A belt (8) is passed in the longitudinal direction while passing through a guide (7) provided at a bent portion of the folding door body (3), and the leading end is fixed to the leading door (1). 4. The connecting folding door according to claim 1, wherein the storage space of (3) is provided with a winding device (9) for a belt (8).