JPH10227166A - Lower guiding mechanism for folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent looseness of a closed folding door without forming a guide rail on a floor by making it up of a receiving tool and a guide pin, arranging a permanent magnet in the receiving tool and forming a guide groove that holds the folding door in the underside of the receiving tool. SOLUTION: To close a folding door D, when a receiving tool A arrives at a position where a guide pin member P is embedded, a permanent magnet 2 and the permanent magnet of a guide pin 4 attracts each other. The pin 4 rises out from a case 3 of the member P. And then the upper part of the pin 4 is inserted into the wide groove section of the guide groove 1. Furthermore, when the folding door D is moved, the pin 4 guided to the narrow groove section and pinches the circumferential face of the pin 4 in the inside. When it reaches the depth of the narrow groove section, it falls into a completely closed condition and is held by the member P and the receiving tool A. In the case of opening the door, the pin 4 moves from the narrow groove section to the wide groove section, the external magnet 2 of the receiving tool A attracts it and stores in the case 3 of the member P. Thus the folding door can be operated reliably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower guide mechanism for a folding door, and more particularly to a folding door that supports the lower end of the folding door without forming irregularities such as guide rails on the floor surface. The present invention relates to a folding door lower guide mechanism which is prevented.

[0002]

2. Description of the Related Art Conventionally, a folding door used for a closet or the like is constituted by a pair of two sheets, a base side and an open side, and a support shaft is protruded from upper and lower surfaces of a base end of the base side folding door. The upper frame and the lower frame of the opening frame are supported so as to swing around the support shaft, and the opening side folding door is connected to the base side folding door via a hinge, and the opening side folding door is connected. A liner is arranged on the upper surface of the front end of the folding door, and a door roller is arranged on the lower surface, along the upper guide rail formed on the upper frame of the opening frame, and along the lower guide rail formed on the lower frame of the opening frame. Then, the two folding doors are configured to be opened and closed by being movably supported.

[0003]

As described above, in a conventional folding door, a V-shaped,
Since a concave or convex lower guide rail such as a U-shape is formed, dirt accumulates in the rail in the case of a concave lower guide rail, while a rail in the case of a convex lower guide rail. There were problems such as stumbling.

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional folding door lower guide mechanism, the present invention provides a closed folding door that supports the lower end of the folding door without forming a concave or convex lower guide rail on the floor surface. An object of the present invention is to provide a folding door lower guide mechanism capable of preventing rattling.

[0005]

In order to achieve the above object, a lower guide mechanism for a folding door according to the present invention comprises a receiving member fixed to the lower surface of the folding door, and a floor surface at a position facing the receiving member of the closed folding door. And a guide pin member provided with a guide pin buried therein so as to be able to protrude and retract. A permanent magnet is disposed on the receiving member, and the upper portion of the guide pin which is attracted and floated by the permanent magnet is inserted to hold the folding door. The guide groove is formed on the lower surface of the receiving member.

[0006] The lower guide mechanism of the folding door, when closing the folding door, when the folding door comes to a predetermined closing position, attracts and floats the guide pin of the guide pin member by the permanent magnet provided in the receiving member. Thereby, the upper part of the guide pin is inserted into the guide groove, and the lower end of the folding door is supported via the receiving member. When the folding door is opened, the guide pin is stored in the guide pin member.

In this case, the guide groove is formed by a wide groove portion, a narrow groove portion having substantially the same width as the diameter of the guide pin formed continuously at one end of the wide groove portion, and a continuous groove at the other end of the wide groove portion. The formed top surface can be constituted by an inclined shallow groove portion.

Thus, when closing the folding door, when the folding door comes to a predetermined closing position, the upper portion of the guide pin of the guide pin member is guided from the wide groove of the guide groove to the narrow groove, and the narrow groove is securely inserted in the narrow groove. And the guide pin can be securely stored in the guide pin member when the folding door is opened.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a folding door lower guide mechanism of the present invention will be described below with reference to the drawings.

The lower guide mechanism of the folding door includes a receiving member A fixed to the lower surface of the distal end of the folding door D on the open side, and a closed folding door D.
And a guide pin member P provided with a guide pin 4 buried in a floor surface F at a position facing the receiver A.

As shown in FIGS. 1 to 3, the receiving member A has a buried hole formed in the lower surface of the folding door D, and the lower surface of the receiving member A and the lower surface of the folding door D are desirably formed in the buried hole. They are fitted so as to be one and fixed with screws B via screw insertion holes 15. The permanent magnet 2 is arranged in the magnet fitting groove 16 formed at the upper position of the receiving member A,
A guide into which the upper portion of the guide pin 4 of the guide pin member P embedded in the floor F, which is attracted and floated by the permanent magnet 2, is inserted on the lower surface of the receiving member A corresponding to the position where the permanent magnet 2 is provided. A groove 1 is formed.

The guide groove 1 has a wide groove portion 11 formed to have a width W1 considerably larger than the diameter of the guide pin 4 so that the upper portion of the guide pin 4 can be easily inserted, and the upper portion of the guide pin is securely held. W2 is approximately the same width (slightly larger width) as the diameter of the guide pin 4 formed continuously through the inclined portion 13 perpendicular to one end of the wide groove portion 11 so that
, A wide groove 11 continuously formed on the other end side of the wide groove 11, and a shallow groove 14 whose top surface is inclined so that the depth of the same width W1 gradually decreases. . In addition, of the length of the guide groove 1 in the longitudinal direction, the wide groove 11
And the length D1 including the shallow groove portion 14 and the narrow groove portion 12
Length D2 is larger than the diameter of the guide pin,
The length D3 of the inclined portion 13 is such that the upper portion of the guide pin 4 can be smoothly guided from the wide groove portion 11 to the narrow groove portion 12, and the length D4 of the shallow groove portion 14 guides the guide pin 4. The length is set so that the pin member P can be smoothly stored in the case 3.

By forming the guide groove 1 in this manner, when the folding door D is closed, when the receiving member A comes to a position above the guide pin member P embedded in the floor F, the permanent magnet of the receiving member A 2, the upper portion of the guide pin 4 which is attracted and floated is easily inserted into the wide groove portion 11 of the guide groove 1.
The guide is guided to the narrow groove 12 through the inner surface of the guide pin 4 by the inner surface of the narrow groove 12. Further, when opening the folding door D, the upper surface of the guide pin 4 attracted and floated by the permanent magnet 2 of the holder A is formed by inclining the top surface so that the depth gradually becomes shallower.
The guide pin 4 is housed in the case 3 of the guide pin member P by forcibly pressing down on the top surface.

In order to ensure that the exciting force of the permanent magnet 2 acts on the guide pin 4 of the guide pin member P, the receiving member A
Is formed of a non-exciting magnetic material, for example, a metal material such as aluminum or an aluminum alloy, or a synthetic resin material such as POM.

The guide pin member P embedded in the floor surface F
As shown in FIGS. 1 and 4, the case 3 is fixed by being inserted into a hole formed on the floor surface, and is attracted by excitation of the permanent magnet 2 slidably inserted into the case 3. And a guide pin 4.

The case 3 is made of a non-exciting magnetic material, similarly to the receiving member A, and has a cylindrical main body 30 formed at the upper end with a flange 31 abutting on the floor F, and an outer peripheral surface of the cylindrical main body 30. The guide pin 4 is inserted into the inner hole 33 of the cylindrical main body 30.

The guide pin 4 is made of a non-exciting magnetic material, for example,
Metal materials such as aluminum and aluminum alloy or PO
At least the upper end face is made of a synthetic resin material such as M and has a closed cylindrical shape, and the permanent magnet 5 that is mutually attracted to the permanent magnet 2 of the receiver A is inserted therein, or the whole thereof is inserted. Alternatively, a part is formed of an exciting material. In this case, it is desirable that the permanent magnet 5 inserted into the guide pin 4 be fixed with a stopper 6 or an adhesive. The guide pins 4
An elongated guide hole 41 is formed in the longitudinal direction, and a pin 34 engaged with the case 3 is penetrated into the guide hole 41, thereby restricting the amount of movement of the guide pin 4 in the vertical direction and preventing the guide pin 4 from coming off. To do it.

Next, the operation of the lower guide mechanism of the folding door will be described. When closing Orito D from the open state,
When the receiving member A comes to the position where the guide pin member P is buried by the movement of the folding door D, the permanent magnet 2 provided on the receiving member A and the permanent magnet 5 of the guide pin 4 of the guide pin member P attract each other. Accordingly, the guide pin 4 floats from inside the case 3 of the guide pin member P. The upper part of the raised guide pin 4 is inserted into the wide groove portion 11 (or the shallow groove portion 14) of the guide groove 1. Further, by moving the folding door D, the guide pin 4 is guided to the narrow width groove portion 12 through the inclined portion 13, and the inner surface of the narrow width groove portion 12 holds the peripheral surface (opposed surface) of the guide pin 4. Is done. Guide pin 4 is narrow groove 1
2, the folding door D is in a completely closed state, and the lower end of the folding door D is firmly fixed by the guide pin member P and the receiving member A via the guide pin 4 without rattling. Will be retained.

When the folding door D is opened from the closed state, the folding door D
The guide pin 4 moves from the narrow groove portion 12 into the wide groove portion 11 by the movement of, and the guide pin 4 moves from the wide groove portion 11 into the shallow groove portion 14 by moving the folding door D,
The upper end surface of the guide pin 4 attracted and floated by the permanent magnet 2 of the receiving member A is forcibly pushed down by the top surface of the shallow groove portion 14 formed by inclining the top surface so that the depth gradually decreases. The member P is stored in the case 3.
Thereby, the lock between the guide pin member P and the receiving member A is released, and the folding door D can be opened.

[0020]

According to the folding door lower guide mechanism of the present invention, when the folding door comes to a predetermined closing position when the folding door is closed, the guide pin of the guide pin member is provided by the permanent magnet disposed on the receiving member. The upper part of the guide pin is inserted into the guide groove by sucking and floating, and the lower end of the folding door is supported via the holder, and when the folding door is opened, the guide pin is inserted into the guide pin member. By storing, it is possible to support the lower end of the folding door and prevent rattling of the closed folding door without forming a lower guide rail on the floor surface that causes dust to collect or trip.

Further, the guide groove is formed continuously with the wide groove, the narrow groove having substantially the same width as the diameter of the guide pin formed continuously at one end of the wide groove, and the other end of the wide groove. When the folding door is closed at a predetermined closing position by closing the folding door by configuring the top surface with a shallow groove having a slope, the upper portion of the guide pin of the guide pin member is moved from the wide groove of the guide groove to the narrow groove. That can be securely held in the narrow groove portion, and when the folding door is opened, the guide pin can be securely stored in the guide pin member, and the operation of the folding door can be performed more reliably. Becomes

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a folding door lower guide mechanism of the present invention.

FIG. 2 is a sectional view of the receiving tool.

FIG. 3 is an external perspective view of the receiving tool as viewed from the bottom.

FIG. 4 is a sectional view of the guide pin member.

[Description of Signs] A Receiver D Folding door F Floor surface P Guide pin member 1 Guide groove 11 Wide groove 12 Narrow narrow groove 13 Inclined part 14 Shallow groove 2 Permanent magnet 3 Case 4 Guide pin 5 Permanent magnet 6 Stopper

Claims (2)

[Claims] 1. A receiving member fixed to a lower surface of a folding door, and a guide pin member provided with a guide pin buried on a floor surface of the closed folding door at a position facing the receiving member so as to be able to protrude and retract. And a guide groove for holding the folding door is formed on a lower surface of the receiving member, and a guide groove for holding the folding door is inserted into the lower portion of the folding door. 2. The guide groove is formed continuously with a wide groove, a narrow groove having substantially the same width as the diameter of a guide pin formed continuously at one end of the wide groove, and the other end of the wide groove. 2. The folding door lower guide mechanism according to claim 1, wherein the top surface is constituted by a shallow groove having a slope.