JPH0616687U - Folding door - Google Patents

Abstract

(57) [Summary] [Purpose] A foldable door in which a hanger roller provided at the upper part of the door body is suspended by a guide rail provided at the upper edge of the door opening and is held in a suspended state. (EN) A door main body is prevented from swinging in the front-back direction due to displacement of the center of gravity of the main body, deformation of a guide rail and the like is prevented, and a smooth opening / closing operation is provided. [Structure] When folded, a roller 121, which is rotatably supported in the horizontal direction and is in contact with the lower end of the bent portion of the door body 1 located below the guide rail 3, is installed on the floor surface G near the hanging end 102. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a foldable door that opens and closes a door opening by a door body in which a plurality of door panels are hinged so as to be rotatable relative to each other, and is particularly useful as a door device for a building or a partition. It is a thing.

[0002]

[Prior art]

 For example, as disclosed in Japanese Unexamined Patent Publication No. H2-125082, a hanger roller is attached to the upper end of a connecting device for connecting a plurality of door panels, and the hanger roller is suspended on an upper guide rail to fold a door. Is held in a suspended state. On the other hand, a guide rod is attached to the lower end of the connecting device, and the guide rod is fitted in the groove of the lower guide rail. Therefore, the door body panel is supported by the upper guide rail so as to be movable in the expansion and contraction direction of the folding door, and by fitting the lower guide rail and the guide rod, the movement of the door body panel in the front-back direction is prevented and the upper guide rail is supported. The upper guide rail and hanger roller are prevented from being deformed by the swinging of the door panel centering on the suspension of the rail and hanger roller.

[0003]

[Problems to be solved by the device]

 However, in the conventional folding door, since the groove of the lower guide rail is positioned to open on the floor surface of the door opening, when the person goes in and out, the foot may get caught in the groove. However, there was a possibility that foreign matter would enter the groove and hinder the smooth opening / closing operation of the folding door.

Therefore, if the lower guide rail is eliminated, the above problem can be solved, but since there is no means for restricting the movement of the door panel in the front-rear direction, particularly when the door panel is folded in the open state, Since the door panel is projected to one side in the front-back direction from the suspension part between the upper guide rail and the hanger roller, the center of gravity of the folding door is displaced, and the weight of the folding door is suspended between the upper guide rail and the hanger roller. Since it acts as a rotational force so that it falls down in a direction protruding around the part, it will not be possible to smoothly open and close it, and the upper guide rail or hanger roller will be deformed, and it will be difficult to withstand long-term use. On the other hand, it is conceivable to reinforce the upper guide rail and the hanger roller so as to withstand the rotational force, but this causes an increase in cost and an increase in weight, which is not suitable for mass production.

Further, when the folding door is closed and the door stop frame is fitted into the recess of the door stop column, the door stop end of the folding door sways in the front-rear direction around the suspension portion of the guide rail and the hanger roller. If this occurs, the door stop frame may not fit properly into the recess of the door stop column, and the ends of the door stop frame and the door stop column may collide and be damaged, which may deteriorate the appearance of the folding door.

[0006]

[Means for Solving the Problems]

 In view of the above problems, the present invention provides a door main body in which a plurality of door panels are pivotally hinged to each other, and a guide rail provided at an upper edge of the door opening portion and a hanger roller provided at an upper portion of the door main body. A foldable door that is rotatably suspended and can be folded while holding the door body along the guide rails. By providing the member at the lower edge of the door opening so as to contact the lower end of the bent portion of the door body, the intended problem is solved.

In the above description, the door body fall prevention member is composed of a roller rotatably supported in the horizontal direction.

Further, a guide member for guiding the door stop frame of the door body to the fitting recess of the door stop column is provided at the lower edge of the door opening.

In the above description, the guide member is composed of a roller rotatably supported in the horizontal direction.

[0010]

[Action]

 According to this invention, when the door body is projected in the front-back direction in the folded state, the center of gravity of the door body is displaced, and the own weight of the folding door falls in the direction protruding around the suspension part of the guide rail and the hanger roller. As described above, it acts as a rotational force in the front-back direction, but since a door body fall-preventing member that comes into contact with the lower end of the bent portion of the door body is provided to prevent the door body from swinging in the front-back direction, Since the door body is supported against the rotational force, the guide rail and the hanger roller are not deformed, and a smooth opening / closing operation can be provided for a long period of time.

Further, when the folding door is closed and the door stop frame is fitted into the recess of the door stop column, the door stop end of the folding door swings in the front-rear direction around the suspension portion of the guide rail and the hanger roller. Even if it moves, the door stop frame is guided by the guide member and fits into the fitting recess of the door stop column, preventing the side ends of the door stop frame and the door stop column from colliding and being damaged. It is possible to provide a folding door having a good appearance for a long time.

[0012]

【Example】

 1 to 4 show an embodiment of the folding door of the present invention, in which a door body 1 is constructed by hinge-joining a plurality of door panels 2, 2 ... Has been done. In the closed state of the door opening 9, the door body 1 closes the door opening 9 with the door contact end 101 of the door body 1 fitted in the fitting recess 71 of the door contact post 7. In the closed state, the lock device 103 provided on the door stop frame 13 and the lock device 51 provided on the hinge member 5 regulate the swinging of the door body 1 in the front-rear direction. On the other hand, in the open state, the door body 1 is folded so that the door body panel 2 is superposed on the hanging pillar 8 side to which the hanging end 102 of the door body 1 is connected, and the door opening 9 is opened.

A guide rail 3 having a generally U-shaped cross section is provided at the upper edge of the door opening 9, and a pair of hanger rollers 4 provided at the upper part of every other hinge member 5 are connected to the guide rail. It is suspended so as to roll and run on the upper surface of the guide portion 31 that is integrally formed so as to face each other in the unit 3. Therefore, the door body 1 can be folded and expanded along the guide rail 3, and the door body 1 is supported by the guide rail 3 in a suspended state. On one side wall 32 of the guide rail 3, a seal mounting portion 34 is extended downward to a height positioned on the upper side of the door panel 2, and a seal member 35 is mounted on the tip of the seal mounting portion 34. Has been.

On the upper part of the hinge member 5 to which the hanger roller 4 is not attached, a shake prevention roller 10 for preventing the shake of the door panel 2 in the closed state is urged upward by a spring or the like, and the guide rail 3 It is provided so as to abut the inner surface of the other side wall 33. When the door body 1 is opened, the runout preventing roller 10 is pushed downward by a slope or the like provided on the suspension column 8 side of the guide rail 3, and is disengaged from the side wall 33 so that the inside of the guide rail 3 is released. The door body 1 can be sequentially folded from the hanging end 102 side by detaching from. Further, the suspension base frame 11 at the suspension base end 102 of the door body 1 is slidably fitted into the suspension base column 8 with the suspension base column 8, and the swinging of the door body panel 2 closest to the suspension base column 8. Is being prevented.

On the floor surface G, which is the lower edge of the door opening 9 on the hanging end 102 side, a door body fall prevention member 12 is provided. The door body fall prevention member 12 supports a door body fall prevention roller 121 formed of resin or the like by a support shaft 122 so as to be rotatable in the horizontal direction, and the lower end of the support shaft 122 is a pipe member 123 embedded in the floor surface. , Is firmly fixed to the floor surface G by bolt nut means or the like. As shown in FIGS. 3 and 4, the door body fall prevention roller 121 of the door body fall prevention member 12 does not protrude in the front-rear direction from the lower position of the guide rail 3 in the open state where the door body 1 is folded. It is installed so that the lower end of the side portion of the door panel 2 and the lower end of the hinge member 5 located at the bent portion 104 on the lower side of the guide rail 3 come into contact with the peripheral surface of the door fall prevention roller 121. There is. Further, one or two door body fall prevention rollers 121 are arranged so as to come into contact with the lower ends of the side portions of the door body panel 2 of the respective bent portions 104 and the lower ends of the hinge members 5. Note that the door body collapse prevention rollers 121 may be densely arranged with a small diameter, and three or more door body collapse prevention rollers may be brought into contact with one bent portion. Further, since the door body fall prevention member 12 is provided at a position substantially below the guide rail 3, it can be constructed compactly.

A guide member 14 is provided on the floor surface G, which is the lower edge of the door opening 9 on the side of the door contact end 103. This guide member 14 has the same structure as the door band fall member 12, and a guide roller 141 formed of resin or the like is supported by a support shaft 142 so as to be rotatable in the horizontal direction, and the support shaft 142 is attached to the floor surface G. It is fixed to. The guide roller 141 of this guide member 14 is such that the peripheral surface of the guide roller 141 abuts on the side wall of the door stop frame 13 so that the door stop frame 13 fits into the fitting recess 71 of the door stop column 7 at the proper position. It is installed in the position. Further, preferably, if a pair of guide rollers 141 is provided in the front-rear direction of the door body, it is possible to surely prevent the front and rear swing of the door stop frame 13 and guide, but in the present embodiment, the door body panel 2 is illustrated. As shown in FIG. 3, since the suspension portions of the guide rail 3 and the hanger roller 4 are biased and connected to the left in the drawing, the door main body 1 is attached to the guide rail 3 and the hanger roller 4 by the weight of the door body panel 2. A force that tries to rotate counterclockwise around the suspension portion 4 acts, and a relatively large amount of swinging in the counterclockwise direction occurs. Therefore, in the present embodiment, at least one guide member 14 may be provided at a position where it is possible to prevent the counterclockwise swing (lower position on the right side surface of the door panel 2 in FIG. 3).

Next, the operation of the folding door having such a configuration will be described. First, in the closed state of the door body 1, the plurality of door panels 2 are linearly extended through the hinge member 5 as shown by the solid line in FIG. The door body 1 cannot be folded when locked due to the lock device 103 provided at the door stop end 101 and the drop lock 51 provided at the lower end of the arbitrary hinge member 5.

Next, when the locks are unlocked and the door body 1 is moved to the suspension base 8 side by a handle or the like provided on the door stop end side 101, first, the suspension base frame 11 is set in the suspension base 8. The slide main body 1 is slid in, and then the door body 1 is sequentially folded from the hanging end 102 side. When folded, the lower end of the door body panel 2 side at the bent portion 104 of the door body 1 located below the guide rail 3 and the lower end of the hinge member 5 are the door body fall prevention roller 121 of the door body fall prevention member 121. It moves to the suspension base 8 side while contacting the peripheral surface. At this time, since the door body fall prevention roller 121 is rotatably supported in the horizontal direction by the support shaft 122, the door body fall prevention roller 121 rotates to cause the door body fall prevention roller 121 to open and close when the door body 1 is opened and closed. The contact resistance between the door 121, the door panel 2 and the hinge member 5 is extremely small and does not hinder a smooth opening / closing operation.

Since the lower end of the side portion of each door panel 2 and the lower end of the hinge member 5 in each bent portion 104 located below the guide rail 3 are in contact with the door fall prevention roller 121, the front-rear direction , And the hinge member 5 to which the hanger roller 4 is not attached protrudes, the center of gravity of the door body 1 is displaced, and the weight of the door body 1 is suspended between the guide rail 3 and the hanger roller 4. Supporting the hinge members 5 to which the door panels 2, 2, ... and the hanger roller 4 are not attached, against the rotational force even if the rotational force acts so as to fall in a direction projecting around the portion. Therefore, swinging in the front-rear direction around the suspension portion of the guide rail 3 and the hanger roller 4 does not occur. Then, as shown by the chain double-dashed line in FIG. 2, the folding of the door body 1 is completed.

Next, in order to close the door opening 9 again, the door stop end 101 of the door main body 1 in the open state is moved toward the door stop pillar 7, and the door stop end 101 side. From that, the sequential door body 1 is extended, and the door opening 9 is closed. When the door stop frame 13 is fitted into the fitting recess 71 of the door stop pillar 7, even if the door stop frame 13 slightly swings in the front-rear direction, the door contact frame 13 contacts the peripheral surface of the guide roller 141 of the guide member 14. The frame 13 abuts and is guided, and the door stop frame 13 is fitted into the fitting recess 71 of the door stop column 7 at the normal position. At this time, since the guide roller 141 is rotatably supported by the support shaft 142 in the horizontal direction, the guide roller 141 is rotated so that the guide roller 141 and the door stop frame 13 come into contact with each other when the door body 1 is closed. The resistance is extremely small.

[0021]

[Effect of device]

 According to the present invention, the door body fall-preventing member for preventing the swinging in the front-back direction caused by the weight of the door body when folded is provided at the lower edge of the door opening so as to abut on the lower end of each bent portion of the door body. When the door body is folded, the door panel protrudes forward and backward from the lower position of the guide rail, which shifts the position of the center of gravity of the door body, and the weight of the door body projects around the suspension part of the guide rail and hanger roller. When it acts as a front-to-back rotational force so that it will fall in the same direction, the door body fall prevention member abuts the lower end of the bent part of the door body, which is below the guide rail. As a result, the door body is supported, so that the guide rail or the hanger roller is not deformed and a smooth opening / closing operation is provided over a long period of time.

Further, by making the door body fall prevention member a roller rotatably supported in the horizontal direction, even if the roller comes into contact with the lower portion of the door body during the opening / closing operation, the friction resistance can be reduced as much as possible. The smooth opening and closing operation can be provided.

Further, since the guide member for guiding the door stop frame of the door body to the fitting recess of the door stop column is provided at the lower edge of the door opening, the door stop frame of the door stop column can be operated when the folding door is closed. When the door contact end of the folding door swings back and forth around the suspension part of the guide rail and the hanger roller when it is fitted into the recess, the door stop frame is guided by the guide member and hits against the door. Since it fits into the fitting recess of the pillar, it is possible to prevent the side edges of the facing door strut and the pillar that are facing each other from colliding and being damaged, and it is possible to provide a folding door with a good appearance for a long time. Wear.

Further, by making the guide member a roller rotatably supported in the horizontal direction, even if the roller comes into contact with the lower part of the door stop frame, the frictional resistance can be reduced as much as possible and a smooth opening / closing operation can be provided. It is a thing.

[Brief description of drawings]

FIG. 1 is a front view showing a folding door of the present invention.

FIG. 2 is a plan view showing a folding door of the present invention.

FIG. 3 is a vertical sectional view showing a closed state of the folding door of the present invention.

FIG. 4 is a plan sectional view showing a closed state of the folding door of the present invention.

[Explanation of symbols]

 1 Door Main Body 2 Door Body Panel 3 Guide Rail 4 Hanger Roller 7 Door Stop Pillar 9 Door Opening 12 Door Door Tilt-Preventing Member 13 Door Stop Frame 71 Fitting Recess 104 Bent 121 121 Door Tilt-Stopping Roller 141 Guide Roller

Claims (4)

[Scope of utility model registration request] 1. A door body in which a plurality of door panels are pivotally hinged to each other, and a hanger roller provided in an upper portion of the door body is rotatably suspended on a guide rail provided at an upper edge of a door opening. However, in a foldable door in which the door body can be folded along the guide rails in a suspended state, a door body fall-preventing member that prevents swinging in the front-back direction caused by the weight of the door body when folding is used. A foldable door characterized in that it is provided at the lower edge of the door opening so as to contact the lower end of the section. 2. The door body fall prevention member comprises a roller rotatably supported in a horizontal direction.
Foldable door as described. 3. A door body in which a plurality of door panels are rotatably hinged to each other, and a hanger roller provided above the door body is rotatably suspended on a guide rail provided at the upper edge of the door opening. However, in a foldable door in which the door body can be folded along the guide rail in a suspended state, a guide member for guiding the door stop frame of the door body to the fitting recess of the door stop pillar is provided at the lower edge of the door opening. A foldable door characterized by this. 4. The folding door according to claim 3, wherein the guide member comprises a roller rotatably supported in a horizontal direction.