JP2003138851A - Folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door capable of smoothly making open motions at a series of open controls. SOLUTION: The folding door includes a frame body 2, a double folded body 3 and a door body consisting of a small door body 121, the small door body 121 is opened by folding it so as to put on the double folded body 3 in an open state folded in two, a space 191 capable of moving the door body at an initial open motion is constituted between a jamb 8 on the side of the door end of the frame body 2 and a site on the side of a door tail of the double folded body 3, and kicking out mechanisms 193, 194 and 195 pushing the double folded door body 3 in the folded direction by engaging with the initial open motion of the door body are constituted between the double folded door body 3 and the frame body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door provided at a doorway of a bathroom, a shower room, etc., which can be easily opened and closed.

[0002]

2. Description of the Related Art Conventionally, as a folding door of this type, there is known one provided at an opening of each floor facing a home elevator (for example, refer to Patent Document 1). This folding door has a frame body, a two-fold folding door body that is openably and closably provided on the frame body, and a small door body that is rotatably provided on the door end side of the two-fold folding door body. A hinge body is provided at the connecting portion of the two-fold door body, and the center of rotation of this hinge body is displaced in the folding direction with respect to the center of the thickness direction of the door body forming the two-fold door body. . The small door body is provided with a handle for opening and closing the folding door, and when the folding door is opened through the handle in parallel with the guide rail, the hinge portion is displaced as described above. A component force is generated in the folding direction, and the 2-fold folding door body is smoothly folded (open).

[0003]

[Patent Document 1] Japanese Patent Laid-Open No. 2000-130030 (pages 3 and 4, FIG. 1)

[0004]

In such a conventional folding door, the hinge portion is eccentric to generate a component force in the folding direction in the two-fold folding door body in the initial stage of the opening operation. However, unless the above-mentioned positional displacement dimension is made sufficiently large, a component force for smoothly performing folding does not occur. In particular, like folding doors installed in water areas such as bathrooms,
In the case of providing the latch in consideration of the water tightness of the closed state,
It is impossible to generate a component force enough to disengage the latch from the guide rail by the opening operation unless the hinge body is extremely projected in the folding direction.

It is an object of the present invention to provide a folding door that can be smoothly opened by a series of opening operations.

[0006]

A folding door according to the present invention includes a frame body, a two-fold folding door body that is guided by the frame body to open and close, and a door tip of the two-fold folding door body that is opened and closed while being guided by the frame body. And a door body composed of a small door body rotatably connected to a side portion, and the small door body is folded and opened so as to overlap a two-fold folded door body in an open state folded in two, Between the vertical frame on the door-end side of the frame body and the part on the door-end side of the two-fold folding door body, a gap is formed so that the door body can be moved by the initial opening operation. Has a kicking mechanism configured to press the double-folded door body in the folding direction in conjunction with the initial opening operation of the door body.

Another folding door of the present invention is a frame body, a two-fold folding door body which is guided by the frame body to open and close, and a two-fold folding door body which is guided by the frame body to open and close and is rotated to a door-end portion of the two-fold folding body. A folding door provided at an entrance / exit of a bathroom having a door body composed of a small door body that is movably connected, between a vertical frame on the side of the frame body on the side of the door and a portion on the side of the door on the side of the double folding door body. Has a gap in which the door can move in the initial opening operation, and the two-fold door body is pressed in the folding direction between the two-fold door body and the frame body in conjunction with the initial opening operation of the door body. The kicking mechanism is configured to have a tilting cam provided on the undressing room side of the frame and a pin-shaped member provided on the door, and the tilting cam includes an initial opening operation of the door and It is characterized in that a pair of cam surfaces each of which has an inclined cam action with respect to the pin-shaped member in the final closing operation is formed.

According to these structures, when the door body is initially opened, the door body moves so as to close the above-mentioned gap in the closed posture. Along with this movement, the kicking mechanism presses the double-fold door body in the folding direction, so that the double-fold door body is slightly bent, and is folded without resistance in the subsequent opening operation.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A case where a folding door according to an embodiment of the present invention is installed in an opening of a bathroom will be described below with reference to the accompanying drawings. This bathroom has a relatively wide effective opening in consideration of the entry and exit of caregivers, and
The folding door provided therein is configured to open and close smoothly. FIG. 1 is a schematic view of a folding door 1A according to the first embodiment as viewed from the bathroom side. As shown in FIG.
Is composed of a frame body 2 and a door body 5 composed of a two-fold folding door body 3 attached to the frame body 2 so as to be openable and closable and a small door body 4 of a hanging type.

The frame body 2 is constructed by framing an upper frame 6, a lower frame 7 and both vertical frames 8 and 8. The upper frame 6 and the lower frame 7 have a bathroom side guide portion 9 and a changing room side. The guide portion 10 is formed (details will be described later). Bathroom side guide section 9
And the undressing room side guide section 10 are arranged in parallel with each other with a gap in the prospective direction, and the two-fold folding door body 3 is guided by the bathroom side guide section 9 to open and close, and a small door body. 4 is adapted to be opened and closed by being guided by the undressing room side guide portion 10.

The double-folded door body 3 is constructed by abutting a door-end side door body 12 and a door-end side door body 13 and bendingably connecting them via a connecting metal fitting 14. In addition, two folding doors 3
The small door body 4 is rotatably and slightly slidably attached to a door-end side portion of the door-end side door body 12 via a link mechanism (coupling mechanism) 15. In this case, the two-fold folding door body 3 and the small door body 4 constituting the door body 5 are the two-fold folding door body 3
The door end side and the door end side of the small door body 4 are in close contact with each other and are deployed in parallel with each other, and the two-fold folding door body 3 is folded in two and is connected to the two-fold folding door body 3 to be small. It is configured to be openable and closable between the door body 4 and the open state in which the door body 4 moves to the end of the frame body 2.

As shown in FIGS. 2 to 4, the upper frame 6 is
An upper frame body 21 formed in a substantially “L” shape, and an upper frame body 21
Is integrally formed with the hanging car guide portion 22 on the undressing room B side and the upper guide rail 23 on the bathroom B side, which are vertically provided on the lower surface of the. The lower frame 7 includes a lower frame body 25 having a pair of leg pieces 26, 26, a guide slit portion 27 on the undressing room B side formed on the upper surface of the lower frame body 25, and a lower guide rail 28 on the bathroom B side. It is formed integrally. In this case, the hanging wheel guide portion 22 and the guide slit portion 27 constitute the above-mentioned changing room side guide portion 10 for the small door body 4, and the upper guide rail 23 and the lower guide rail 28 for the double-fold door body 3. The above-mentioned bathroom side guide portion 9 is configured.

Each of the left and right vertical frames 8 is made up of a vertical frame main body 30 in which the bathroom A side is bent in a "U" shape, and a pair of fin pieces 31, 31 projecting from the inner surface of the vertical frame main body 30. Is formed in. The pair of fin pieces 31, 31 is provided at a position closer to the undressing room B side of the vertical frame body 30 in the prospective direction, and the gap between the pair of fin pieces 31, 31 causes the small door body 4 to hit the door. Parts are made up. Although not particularly mentioned,
It goes without saying that a seal member is provided in the gap between the frame body 2 and the two-fold folding door body 3 and the small door body 4 (door body 5) in order to maintain watertightness.

On the other hand, the door-end side door body 13 is constructed by assembling an upper frame 41 and a lower frame 42, a door-end vertical frame 43 and a connecting vertical frame 44, and fitting a panel body 45 into the frame. ing. Similarly, the door-end side door body 12 is constructed by assembling an upper frame 41 and a lower frame 42, a door-end vertical frame 46 and a connecting vertical frame 47, and fitting a panel body 45 therein. .

An upper slide pin 49a and a lower slide pin 49b are incorporated at both upper and lower ends of the door sill vertical frame 43 of the door sill side door body 13, respectively. Upper slide pin 4
9a is integrally formed with an upper slider part and a lower hinge pin part, and the upper guide rail 23 is formed by the slider part.
It is slidably engaged with and is rotatably attached to the upper end portion (edge) of the door sill vertical frame 43 by a hinge pin portion. Similarly, the lower slide pin 49b is integrally formed with the lower slider portion and the upper hinge pin portion, slidably engages with the lower guide rail 28 at the slider portion, and the hinge pin portion has a vertical door end frame. It is rotatably attached to the lower end portion (small edge) of 43. Further, a connecting metal member 14 is rotatably attached to an outer end portion of the connecting vertical frame 44 of the door-end side door body 13 so that a half portion thereof is swallowed, and a latch mechanism 5 is vertically moved to a hollow portion.
0 and 50 are incorporated respectively.

Similarly, an upper slide pin 51a and a lower slide pin 51b are incorporated in both upper and lower ends of the door end vertical frame 46 of the door end side door body 12, respectively. Further, the small door body 4 is connected to the door end vertical frame 46 (details will be described later). The connecting vertical frame 47 has a connecting fitting 1 at the outer end.
4 is rotatably attached so that its half portion is swallowed, and a lock mechanism 52 for locking the two-fold folding door body 3 from the inside of the bathroom A is incorporated in the hollow portion.

In practice, the upper and lower slide pins 51a and 51b of the door-end side door body 12 are connected to the upper and lower guide rails 2 respectively.
3, 28 is slidably engaged with the door buttocks side door body 13
The upper and lower slide pins 49a and 49b are fixed to the upper and lower guide rails 23 and 28, respectively. As a result, the two-fold folding door body 3 has a state in which the respective door-end side door bodies 13 and the door-end side door bodies 12 are arranged side by side on a straight line, and a state in which the respective door-end side door bodies 13 have the door-end side door bodies. The opening / closing operation is performed between the state in which 12 is folded so as to overlap.

The small door body 4 is integrally formed of a hollow shape member and is opened and closed in a hanging manner. Opening / closing handles 61 and 61 are attached to the bathroom A side and the undressing room B side, respectively, at positions near the door end of the small door body 4. Each of the opening / closing handles 61 largely protrudes from the small door body 4 in the prospective direction, and is large in size in consideration of usability. The reference numerals 62a and 62b in the figure are folding doors 1A.
Is a set of seal pads (continuous in the height direction) for watertightly contacting the door end vertical frame 46 of the two-fold folding door body 3 and the small door body 4 in a state in which the door tip is closed. The seal pad 62a fixed to the vertical frame 46 and the seal pad 62b fixed to the small door body 4 are in close contact with each other on their slopes.

At both ends of the small door body 4 in the finding direction,
Similar to the two-fold folding door body 3, each of the upper slide pins (the door end side upper slide pin 64a and the door tip side upper slide pin 6
5a) and the lower slide pin (the lower slide pin 6 on the door end side)
4b and the door end side lower slide pin 65b) are incorporated. Each of the upper slide pins 64a and 65a is composed of an upper hanging portion 66 of an upper portion and a hinge pin portion of a lower portion, and can be rolled by the hanging wheel 66a provided on the upper hanging portion 66 to the hanging wheel guide portion 22 of the upper frame 6. It is engaged and attached to the small door body 4 at the hinge pin portion. In addition, each lower slide pin 64b, 65b
Is composed of a lower slide pin portion 67 and an upper hinge pin portion, and is slidably engaged with the guide slit portion 27 of the lower frame 7 by the slide pin portion 67. As a result, the small door body 4 is guided by the undressing room side guide portion 10 to open and close.

The door end vertical frame 46 of the two-fold folding door body 3 and the small door body 4 are connected by a plurality of link mechanisms (only one is shown in the drawing) 15 arranged in the vertical direction. Each link mechanism 15 includes a support pin 71 arranged coaxially with both the upper and lower slide pins 64a, 64b incorporated in the door end vertical frame 46,
A slide guide 72 built into the small door body 4, a slider 73 engaged with a guide groove 72a of the slide guide 72,
One end is rotatably attached to the support pin 71, and the other end is rotatably attached to the slider 73.

When the small door body 4 is in the closed position, the slider 73 is moved to the end position of the guide groove 72a on the door tail side, and when the small door body 4 is released from this state, the slider 73 is moved. While moving relatively along the guide groove 72a, the small door body 4 is superposed on the door end vertical frame 46. Small door body 4
When the slider 73 relatively reaches the door end side end position of the guide groove 72a along with the opening operation of No. 2, the opening force of the small door body 4 is transmitted to the door end vertical frame 46 and the two-fold folding door body 3 is opened. To start.

Further, in this embodiment, by utilizing the initial opening operation of the small door body 4 in which the slider 73 relatively moves along the guide groove 72a, the two-fold folding door body 3 is moved through the kicking mechanism 16. It is pushed (kicked out) in the folding direction. On the surface of the door end vertical frame 46 on the side of the undressing room B, kicking blocks 76 are provided so as to project at the upper and lower two positions on the door butt side. The door end side of each kicking block 76 has a slope 76a, and when the small door body 4 is initially opened, the small door body 4 is opened.
The door butt side of the kick block 76 comes into contact with the slope 76a of the kick block 76 so as to ride on it, and the cam action (slope cam action) causes
Rotational force about the upper and lower slide pins 51a and 51b of the door end vertical frame 46 is applied to the door end side door body 12, and the latch mechanism 50 is disengaged from the upper and lower guide rails 23 and 28.
Subsequently, the door-end side door body 12 is given a rotating force in the folding direction and an opening force in the finding direction, so that the two-fold folding door body 3 and the small door body 4 are smoothly opened by these two forces. go. That is, the kicking mechanism 16 includes the kicking block 76.
And a small door body (the surface thereof) 4 that moves along the undressing room side guide portion 10.

At the end of opening the door body 5, the two-fold folding door body 3 is folded into two on the side of the bathroom A, while the small door body 4 is a two-fold folding door body 3 with the door end vertical frame 43 and the door tip. Vertical frame 46
The frame 2 is moved to the door end side end so as to follow the back side of the frame. Thereby, the effective opening width of the folding door 1A can be sufficiently secured.

As described above, according to the first embodiment, the force (rotational force) in the folding direction can be applied to the double-fold door body 3 in conjunction with the initial opening operation of the small door body 4. The folding door body 3 can be smoothly folded, and the door body (two-fold folding door body 3 and small door body 4) 5 can be smoothly opened by a normal opening operation. Further, since the width of the double-folding door body 3 can be made smaller by having the small door body 4 compared to the opening width of the frame body 2, the bathroom A side based on the opening / closing movement locus of the double-folding door body 3 The dead space can be reduced.
Moreover, since the small door body 4 can be moved to the door tail side end of the frame body 2, the effective opening width of the folding door 1A can be increased.

Here, a modified example of the kicking mechanism 16 in the first embodiment and a modified example of the close contact portion between the double folding door body 3 and the small door body 4 will be described. As shown in FIG. 5, the kicking mechanism 16 according to the modification has a door end vertical frame 4 of the two-fold folding door body 3.
6 and the rack 8 provided on the small door body 4
It consists of a rack and pinion consisting of 2. The pinion 81 costs almost 1/3 yen, and the door end vertical frame 46
The center portion is fixed to the support pin 71 in a state of being fitted in the notch slit formed in 1. On the other hand, the rack 82 that meshes with the pinion 81 is horizontally installed so as to be built in the small door body 4.

In this kicking mechanism 16, not only the initial opening operation of the small door body 4 but also the subsequent opening operation thereof is performed, so that the turning force in the folding direction and the opening force in the finding direction are simultaneously applied to the door end vertical frame 46. Given. Therefore, the door body (two-fold folding door body 3 and small door body 4) 5 is smoothly opened by these two forces.

As shown in FIG. 6, the close contact portion of the two-fold folding door body 3 and the small door body 4 according to the modified example has a structure similar to the assembling structure such as a two-sliding door. That is, the two folding door body 3
The key piece 84 facing the door end side is formed on the door end vertical frame 46, while the key piece 8 facing the door end side is formed on the door end side of the small door body 4.
5 is formed. Sealing members 86, 86 are attached to the inside of the groove formed by the key pieces 84, 85, and when the two-fold folding door body 3 and the small door body 4 are fully closed, the key pieces 84, 85 are While engaging with each other, each key piece 84,85
2 contact the seal members 86, 86 with their tips.
The folding door body 3 and the small door body 4 contact each other in a watertight manner. As shown in the figure, the kick block 76 may be fixed to the upper frame 41 of the door-end side door body 12 instead of the door-end vertical frame 46.

Next, the folding door 1B according to the second embodiment of the present invention will be described with reference to FIGS. This folding door 1B is composed of a frame body 2 including an upper frame 6, a lower frame 7 and both vertical frames 8 and 8, and a two-fold folding door body (door body) 3 mounted on the frame body 2 so as to be openable and closable. . An upper guide rail 23 is formed on the upper frame 6, and a lower guide rail 28 is formed on the lower frame 7, and both upper and lower guide rails 23, 28 are formed.
The two-fold folding door body 3 is opened and closed by being guided by.

The double-folded door body 3 is a door tail side door body 13 and a door tip side door body 1 which are foldably connected via a connecting fitting 14.
The door-end-side door body 12 includes a door body main body 91 and a sleeve frame 92 connected to the door body side of the door body main body 91. The door end side door body 13 has the upper frame 4 as in the first embodiment.
1, the lower frame 42, the vertical door frame 43, and the connecting vertical frame 44 are assembled to each other, and a panel body 45 is attached thereto. Further, the door sill vertical frame 43 incorporates both upper and lower slide pins (fixed in this case) 49a and 49b slidably engaged with the upper and lower guide rails 23 and 28.

Similarly, the door body 91 of the door-end side door body 91
The upper frame 41, the lower frame 42, the door end connecting vertical frame 101 and the connecting vertical frame 47 are framed together, and the panel body 45 is attached to the frame. In this case, the door body 91 is
The outer end of the connecting vertical frame 47 is connected to the door-end side door body 13 via the above-described connecting fitting 14, and the outer end of the door-end connecting vertical frame 101 is connected to the sleeve frame 92 via the connecting mechanism 93. ing. It should be noted that the door body main body 91 does not have a slide pin incorporated therein, and the door body main body 91 has the door end side door body 13 at both outer ends thereof.
And a sleeve frame 92, respectively.

The sleeve frame 92 is composed of a sleeve frame body 103 and a connecting portion 104 which are integrally formed of a shape material. Also,
In the sleeve frame body 103, an outer opening / closing handle 105 is provided on the surface of the dressing room B side, and an inner opening / closing handle 10 is provided on the surface of the bathroom A side.
6 are attached respectively. Furthermore, the sleeve frame body 1
An upper slide pin 107a and a lower slide pin 107b are respectively incorporated in both upper and lower ends of 03, and the upper slide pin 107a slides on the upper guide rail 23 and the lower slide pin 107b slides on the lower guide rail 28, respectively. It is movably engaged. That is, the two-fold folding door body 3 is folded (opened) by the upper and lower slide pins 107a and 107b being guided by the upper and lower guide rails 23 and 28 and moving to the door butt side.

The outer opening / closing handle 105 and the inner opening / closing handle 106 are respectively a grip portion 109 and a grip support portion (a pair of upper and lower) 1 connected to the upper and lower sides of the grip portion 109.
It is integrally formed with 10. The bases of the grip support portions 110 attached to the front and back surfaces of the sleeve frame 92 are the upper and lower slide pins 107a and 107b of the sleeve frame 92, respectively.
On the other hand, it is attached at a position closer to the side of the door. Further, the grip support portion 110 extends in a right angle with respect to the sleeve frame 92 in plan view and is further bent in a crank shape. in this case,
The grip support portion 110 of the outer opening / closing handle 105 is bent toward the rear side of the door in the finding direction, and the grip support portion 110 of the inner opening / closing handle 106 is bent toward the front side of the finding direction.
In addition, reference numeral 108 in the drawing denotes a pressing plate fixed to the undressing room B side of the sleeve frame 92, and the pressing plate 176 has a door butt side half portion thereof overlapping with the door end connecting vertical frame 101, and a connecting mechanism. The rotational force applied to the sleeve frame 92 together with 93 can be surely transmitted to the door end connecting vertical frame 101.

On the other hand, the connecting mechanism 93 for connecting the sleeve frame 92 and the door end connecting vertical frame 101 of the door body 91 has a connecting portion 104 formed on the side of the tail end of the sleeve frame 92 and the door end connecting vertical frame 101. It is configured by engaging with a groove portion 112 formed on the door end side of, and incorporating a connecting block 113 having a hinge pin into this. That is, the connecting portion 104 of the sleeve frame 92 is approximately 1
The groove portion 1 of the vertical frame 101 for connecting the door ends has a sectional shape of / 4 circle.
It engages so as to be swallowed by 12, and has the same form as that in which the half portion of the connecting fitting 14 and the connecting vertical frame 47 are combined. However, unlike the portion of the connecting fitting 14, this connecting mechanism 93 has a reverse combination when viewed from the dressing room B side, and can be bent on the dressing room B side but on the bathroom A side. It is not bendable.

With such a structure, when the outer opening / closing handle 105 is grasped from the undressing room A side and a force is applied to the door end side in the finding direction to open the double-folding door body 3, the sleeve frame 92 is seen. Opening force in the attaching direction and slide pins 107a, 10 of the sleeve frame 92
Rotational force to stop 7b is applied. The rotational force applied to the sleeve frame 92 is transmitted to the door end connection vertical frame 101, and the door body 91 is rotated in the folding direction. As a result, the latch mechanism 50 incorporated in the connecting vertical frame 44 of the door-end side door body 13 is released, and the two-fold folding door body 3 is smoothly folded. When the two-fold door body 3 is completely opened, the door-end side door body 13 and the door body main body 91 are folded in two (both are formed to have substantially the same width), and the door body With the movement of the main body 91, the sleeve frame 92 is provided with upper and lower guide rails 23, 28.
Move up to the end on the Tojiri side.

As described above, according to the second embodiment, the sleeve frame 9
Since the slide pins 107a and 107b are incorporated in 2, and the connection mechanism 93 capable of transmitting the rotational force in the folding direction is interposed between the door end connection vertical frame 101 of the door body 91 and the sleeve frame 92. By normally opening the outer opening / closing handle 105, the double folding door body 3 can be opened while applying a force in the folding direction. Therefore, 2
It is possible to smoothly open the folding door body 3. Instead of the inner opening / closing handle 106 on the bathroom A side, a handle that doubles as a towel rack may be provided.

Next, a folding door 1C according to a third embodiment of the present invention will be described with reference to FIGS.
In this embodiment, the folding door 1B of the second embodiment is applied to a folding door having a wide effective opening width. The folding door 1C includes a frame body 2 including an upper frame 6, a lower frame 7 and both vertical frames 8 and 8, a two-fold folding door body 3 mounted on the frame body 2 so as to be openable and closable, and a door-end side of the two-fold folding door body 3. And a door body 5 composed of a small door body 121 connected to. In addition, two folding doors 3
Is composed of a door-end side door body 13 and a door-end side door body 12 which are connected via a connecting metal fitting 14, and the door-end side door body 12 is
The door body 91 and the sleeve frame 9 connected to the door tip side of the door body 91
It is composed of 2 and. Then, similarly to the second embodiment, the upper guide rail 23 is formed on the upper frame 6, and the lower frame 7
A lower guide rail 28 is formed on the upper and lower guide rails 23, 28 and is guided by the upper and lower guide rails 23, 28.
And the small door body 121 (door body 5) is opened and closed.

The frame body 2 and the double-folded door body 3 have substantially the same structure as that of the second embodiment. However, sleeve frame 9
Reference numeral 2 denotes both outer end portions of the connecting mechanisms 122a and 122, respectively.
It is connected to the door body 91 and the small door body 121 via 2b (details will be described later). Further, the inner opening / closing handle 106 is formed shorter than the outer opening / closing handle 105, and is bent toward the door butt side. Then, similarly to the second embodiment, upper and lower slide pins 107a and 107b are respectively incorporated in the upper and lower end portions of the sleeve frame 92, and the upper and lower slide pins 107a and 107b are respectively attached to the upper and lower guide rails 23 and 28. It is slidably engaged.

The small door 121 has a small door upper frame 124 and a small door lower frame 125, a small door Tojiri vertical frame 126 and a small door front vertical frame 127, and a panel body 128 attached thereto.
It is configured by fitting. An upper slide pin 129a and a lower slide pin 129b are respectively incorporated in both upper and lower end portions of the small door end vertical frame 127, and the upper slide pin 129a is attached to the upper guide rail 23 and the lower slide pin 129b is attached to the lower portion. The guide rails 28 are slidably engaged with each other. As a result, in the door body 5, the two-fold folding door body 3 and the small door body 121 are connected to the upper and lower guide rails 23,
Between the closed state in which the frame body 2 is lined up side by side with the width of the frame body 2 guided by 28 and the open state in which the small door body 121 is folded so that the two-fold folding door body 3 is folded in two and overlaps with this. Then, it is opened and closed.

By the way, in the open state, the small door 121
In order to be folded, the upper and lower slide pins 129a and 129b incorporated in the small door end vertical frame 127 must be separated from the upper and lower guide rails 23 and 28. Therefore, in this embodiment, the upper and lower slide pins 129a and 129b incorporated in the small door end vertical frame 127 have a latch structure. Both upper and lower slide pins 129
Since a and 129b have the same structure, only the upper slide pin 129a will be described in detail below.

FIG. 13 shows the upper slide pin 129a mounted on the upper end of the small door door frame 127. The upper slide pin 129a includes a slider body 131 having a door roller 132 and a holder 13 containing the slider body 131.
3 and a coil spring 134 that urges the slider body 131 upward (in the protruding direction). The holder 133 is
It is inserted and mounted from the upper side to the upper end portion of the small door end frame 127, and holds the slider body 131 slidably in the vertical direction inside thereof.

The slider body 131 is integrally formed of a body portion 136 slidingly contacting the inner surface of the holder 133, a roller mounting portion 137 connected to the upper side of the body portion 136, and a stopper pin portion 138 connected to the lower side of the body portion 136. The door roller 132 is rotatably attached to the roller attachment portion 137. The lower portion of the stopper pin portion 138 penetrates the bottom plate of the holder 133, and the lower end portion thereof is formed in a bulge shape. The coil spring 134 is disposed between the lower surface of the body portion 136 and the bottom surface of the holder 133 so as to be wound around the stopper pin portion 138, and is biased upward by the coil spring 134. In the slider body 131, the lower end portion of the stopper pin portion 138 has the holder 13
By holding it on the bottom plate of No. 3, its rising end position is regulated.

A vertical slit 137a which is in sliding contact with the upper guide rail 23 is formed at the intermediate position of the roller mounting portion 137, and the door roller 132 is rotatably mounted in the recessed portion of the vertical slit 137a.
Further, the upper part of the roller mounting portion 137 is provided with the vertical slit 13
7a is sandwiched on both sides, and each side is an outer inclined guide surface 1377.
b, 137b and the inner inclined guide surfaces 137c, 137c are formed in a mountain shape. That is, the vertical slit 137
The upper part of “a” is vertical guide surfaces 137d and 137d which are in sliding contact with the upper guide rail 23, and the vertical guide surface 137 is provided.
An inner inclined guide surface 137c is connected to the upper end of d, and further, an outer inclined guide surface 137b is connected to this through the top.

When the door end side of the small door 121 is pressed toward the inside of the bathroom A from the expanded state, the inner slide guide surface 137c guides and the upper slide pin 129a is released from the upper guide rail 23 after sinking. And the small door body 121
Is folded along with the already folded 2-fold folding door body 3. Also, in the reverse order, the small door body 121 folded in
And slide the upper slide pin 129a into the upper guide rail 2.
When it is strongly pulled to the undressing room B side from the state of being in contact with the side surface of 3, the upper slide pin 129a engages with the upper guide rail 23 with the outer inclined guide surface 137b as a guide.

Although not shown, in the closing operation, 2
It is preferable to provide a folding regulation mechanism so that the small door body 121 can be folded after the single folding door body 3 is folded, and the double folding door body 3 can be unfolded after the small door body 121 is unfolded in the opening operation. It is preferable to provide a development regulation mechanism.

Next, the above-mentioned connecting mechanisms 122a and 122b.
Will be briefly described. Left and right connecting mechanisms 122a, 1
22b has the same structure, but has a different structure from that of the second embodiment. Door body 91 and sleeve frame 9
In the connecting mechanism 122a for connecting the 2 and 2, the circular protrusion 141 and the seal pad 142 are provided on the door end connecting vertical frame 101 of the door body 91, and the protrusion receiver 143 and the seal pad 144 are correspondingly provided on the sleeve frame 92. It is provided (see FIGS. 11 and 12).

The circular protrusion 141 is provided on the outer end surface of the door-end connecting vertical frame 101 so as to project toward the bathroom A side in the prospective direction, and has a cylindrical engaging portion at the tip of a supporting portion curved in an arc shape. Correspondingly to this, the projection receiver 143 is a circular groove formed on the bathroom A side at the end of the sleeve frame 92 on the side of the door end, and is a circular groove with a part cut away. It has a complementary shape to this. The seal pad 142 of the door end connecting vertical frame 101 is the door end connecting vertical frame 1
The outer end surface of 01 is projected toward the undressing room B side in the prospective direction, and the seal pad 144 of the sleeve frame 92 is projected toward the undressing room B side at the end of the sleeve frame 92 on the door sill side. In a state where 91 and the sleeve frame 92 are expanded (closed) on a straight line, the seal pads 142 and 144 are in close contact with each other to achieve watertightness.

On the other hand, the connecting mechanism 122b for connecting the sleeve frame 92 and the small door 121 has the same structure as that of the connecting mechanism 122a but with the right and left reversed. Further, a pair of connecting pins integrally held by a holder (not shown) is inserted into the circular protrusions (engaging portions) 141 of both the connecting mechanisms 122a and 122b. That is, the holder provided with the pair of connecting pins is mounted from the upper and lower edges of the sleeve frame 92, respectively, whereby the center of rotation of both connecting mechanisms 122a and 122b is determined, and the circular protrusion 141 is separated from the protrusion receiver 143. To prevent it. Then, as in the second embodiment, the two connecting mechanisms 122a, 122b are in the undressing room B when the door body (two-fold door body 3) 91, the sleeve frame 92 and the small door body 121 are expanded (closed). Although it can be bent to the side, it is not bendable to the bathroom A side.

In such a structure, when the outer opening / closing handle 105 is grasped from the undressing room B side and a force is applied to the door butt side in the finding direction to open the double-folding door body 3, the sleeve frame 92 is
Opening force in the finding direction and slide pins 129a, 129b
The rotational force to stop is applied. The rotational force applied to the sleeve frame 92 is transmitted to the door end connecting vertical frame 101, and the door body 9
1 is rotated in the folding direction. As a result, the latch mechanism 50 incorporated in the door end side door body 13 is released, and the two-fold folding door body 3 is smoothly folded. Then, when the two-fold folding door body 3 is completely opened, the door tail side door body 13 and the door body body 9
1 and 2 are folded in two, and the sleeve frame 92 moves on the upper and lower guide rails 23 and 28 to the end on the door tail side as the door body 91 moves. Further, the small door body 121 is further folded into this.

As described above, according to the third embodiment, similar to the second embodiment, the slide pins 129a, 1 are attached to the sleeve frame 92.
29b is incorporated, and the vertical frame 101 and the sleeve frame 92 are connected.
Since the connection mechanism 122a is provided between the door body 5 and
It is possible to open the two-fold folding door body 3 while applying a force in the folding direction to the two-fold folding door body 3 by a normal opening operation with respect to, and the two-fold folding door body 3 can be smoothly opened. Also, the small door 1
Since 21 can also be folded so as to fit along the two-fold folding door body 3, the effective opening width of the folding door 1C can be increased.

Next, a folding door 1D according to the fourth embodiment of the present invention will be described with reference to FIGS.
The folding door 1D of this embodiment has a form similar to that of the folding door 1C of the third embodiment having a wide effective opening width. This folding door 1D includes a frame body 2 including an upper frame 6, a lower frame 7 and both vertical frames 8 and 8, and a two-fold folding door body 3 attached to the frame body 2 so as to be openable and closable.
And a door body 5 composed of a small door body 121 connected to the door tip side of the two-fold folding door body 3. In addition, it is composed of a two-fold folding door body 3 and a door end side door body 13 and a door tip side door body 12 which are connected to each other via a connecting fitting 14, and the door tip side door body 12 is
The door body 91 and the sleeve frame 9 connected to the door tip side of the door body 91
It is composed of 2 and. Then, similarly to the second embodiment, the upper guide rail 23 is formed on the upper frame 6, and the lower frame 7
A lower guide rail 28 is formed on the upper and lower guide rails 23, 28 and is guided by the upper and lower guide rails 23, 28.
And the small door 121 opens and closes.

In this folding door 1D, the two-fold folding door body 3
A door closer 151 is attached to the. The door closer 151 includes a closer body 153 and an operating arm 154.
It consists of and. The actuating arm 154 has its fixed end fixed to the upper frame 6, and the closer body 153 is fixed to the upper frame 41 of the door tail side door body 13. In such a configuration, when the door body 5 is closed, the closing force of the door closer 151 acts on the double-fold door body 3, so that the double-fold door body 3 and the small door body 121 can be smoothly closed. . Further, in this case, even if the latch mechanism 50 is not provided, the door body 5 can be stably (watertightly) closed.

Next, a folding door 1E according to the fifth embodiment of the present invention will be described with reference to FIGS.
The folding door 1E of this embodiment has a wide effective opening width, and has a structure in which the intermediate position of the door body 5 is once pushed into the bathroom A side and then opened. Orido 1E
Is a frame body 2 including an upper frame 6, a lower frame 7 and both vertical frames 8 and 8.
A two-fold folding door body 3 mounted on the frame body 2 so as to be openable and closable, an intermediate frame body 161 connected to the door tip side of the two-fold folding door body 3, and a small door body connected to the door tip side of the intermediate frame body 161. And 162. Further, it is composed of a double-folded door body 3, a door tail side door body 13 and a door tip side door body 12 which are connected to each other via a connecting fitting 14. The door body 5 is configured by the two-fold folding door body 3, the intermediate frame body 161, and the small door body 162.

As will be described later in detail, the upper frame 6 is formed with a dressing room side upper guide rail 171a and a bathroom side upper guide rail 172a which are arranged in parallel with each other, and similarly, the lower frame 7 is formed.
The guide rails 17 under the undressing room are arranged parallel to each other.
1b and the bathroom side lower guide rail 172b are formed. That is, the frame body 2 is formed with a changing room side guide portion 171 and a bathroom side guide portion 172 that guide opening and closing of the double-folded door body 3, the intermediate frame body 161, and the small door body 162.

The intermediate frame body 161 is formed of a hollow shape member. The outer opening / closing handle 174 bent to the door butt side is formed on the surface of the changing room B side, and the door butt side is formed on the surface of the bathroom A side. An inner opening / closing handle 175 that is bent at is attached. Further, a pressing plate 176 is attached to the surface of the intermediate frame body 161 on the clothing room side so as to be fixed together with the outer opening / closing handle 174. Pressing plate 176
Has its door butt side half portion overlapped with the door end vertical frame 46 of the two-fold folding door body 3, and when the intermediate frame body 161 is pressed toward the bathroom A side, the pressing force also causes the door end vertical frame 46 to be in the bathroom A side. It is designed to be pushed to the side.

On the other hand, in this embodiment, the upper and lower slide pins 49a, 49b, 51a, 51b are respectively incorporated in the door sill body frame 43 and the door end vertical frame 46 of the two-fold folding door body 3, and the small door body 162 is constructed. The upper and lower slide pins 178 are respectively attached to the small door vertical end frame 126 and the small door front vertical frame 127.
a, 178b, 179a, 179b are incorporated. The slide pin is not incorporated in the intermediate frame body 161. And the door end vertical frame 46 of the two-fold folding door body 3,
Both upper and lower slider pins 51a, 51b, 17 incorporated in the small door Tojiri vertical frame 126 and the small door front vertical frame 127, respectively.
8a, 178b, 179a, 179b are all third
And, like the upper and lower slider pins 129a and 129b incorporated in the small door end vertical frame 127 of the fourth embodiment, it has a latch structure.

Further, the intermediate frame body 161 is provided at both outer ends of the door end vertical frame 46 of the door end side door body 12 and the small door door end vertical frame 126 of the small door body 162 via the rotating mechanism 163. Each is rotatably attached to each other. Each of the rotating mechanisms 163 is arranged at two positions, upper and lower, but since they have the same structure, the upper rotating mechanism 163 on the door end vertical frame 46 side will be described here.

As shown in FIG. 19, the door end vertical frame 46 and the intermediate frame body 161 are connected to each other with their outer end faces abutting against each other, and the rotating mechanism 163 includes the door frame vertical frame 46 and the intermediate frame body 161.
Built to pass to and. The rotation mechanism 163 is
An arm member 181 attached to the outer surface of the undressing room B side straddling the door end vertical frame 46 and the intermediate frame body 161, and a hinge block 182 mounted in the hollow portion of the door end vertical frame 46 and receiving the arm member 181. And the hinge pin 18 which is the center of rotation
3, a pair of upper and lower screw receiving members 184 and 184 fixed in the hollow portion of the intermediate frame 161, and a cover member 185 that covers the arm member 81 from the undressing room B side.

The arm member 181 is a rectangular flat plate-shaped base portion 18 attached to the door end vertical frame 46 and the intermediate frame body 161.
1a and a hinge arm portion 181 extending from the end portion of the base portion 181a on the door end vertical frame 46 side into the hollow portion of the door tip vertical frame 46.
b and the shaft hole portion 181c formed at the tip of the hinge arm portion 181b are integrally formed. Arm member 1
Reference numeral 81 denotes a hinge arm portion 181b that faces the hollow portion of the door end vertical frame 46, and is an end portion of the base portion 181a on the side of the intermediate frame body 161 that is fixed to the intermediate frame body 161 to receive the screw receiving member 184. There is. That is, each screw receiving member 1
Female screws are formed on each of the armatures 84, and the arm member 181 is provided with screw receiving members 184, 184 from the undressing room B side.
The fixing screws 186 and 186 screwed together are screwed to the intermediate frame body 161 together with the cover member 185. Further, the cover member 185 includes the base portion 181a of the arm member 181, and the four side projecting portions are formed so as to conform to the outer surface of the door end vertical frame 46 and the intermediate frame body 161.

The hinge block 182 is mounted so that a substantially half portion of the undressing room B side is inscribed in the hollow portion of the door end vertical frame 46, and in this state, the screw 18 screwed from the undressing room B side.
It is fixed to the door end vertical frame 46 by 7. Door end vertical frame 4
In the part of the hinge block 182 located at the axis center of 6,
A bearing portion 182a through which the hinge pin 183 is inserted is formed, and an arm slit 182b having a fan-shaped planar shape centering on the bearing portion 182a is formed at an upper and lower intermediate position of the hinge block 182. A notch slit 188 is formed in the side wall of the door end vertical frame 46 so as to correspond to the arm slit 182b.

Hinge arm portion 181 of arm member 181
b is inserted into the arm slit 182b through the notch slit 188 so that the shaft hole portion 181c matches the bearing portion 182a of the hinge block 182. In this state, the shaft hole portion 181c and the bearing portion 182a are inserted. The hinge pin 183 is attached so that The hinge arm portion 181b is rotated about the hinge pin 183 by the rotation of the door end vertical frame 46 accompanying the opening and closing of the two-fold door body 3, and the above-mentioned notch slit 188 and arm slit 182b.
It relatively rotates as it is guided by. In this way, the door end vertical frame 46, the small door Tojiri vertical frame 126, and the intermediate frame body 161 are rotatably connected with their outer ends abutting each other.

Here, the opening / closing operation of the folding door 1E of the fifth embodiment will be described. In the closed state, the two-fold folding door body 3, the intermediate frame body 161, and the small door body 162 are supported by the above-mentioned dressing room side guide portion (dressing room side upper guide rail 171a and dressing room side lower guide rail 171b) 171. In this state, the outer opening / closing handle 174 is gripped and pressed. By this pressing operation, the upper and lower slider pins 51a, 51b, 1 of the door end vertical frame 46 and the small door Tojiri vertical frame 126
78a and 178b are detached from the changing room side guide part 171 and the bathroom side guide part (bathroom side upper guide rail 172).
a and the bathroom side lower guide rails 172b) 172. At this time, the pressing plate 17 of the intermediate frame body 161
6, the door-end side door body 12 is pushed to the bathroom A side through the door-end vertical frame 46, and the two-fold folding door body 3 is slightly bent.

In this way, the upper and lower slider pins 51a, 51b of the door end vertical frame 46 and the small door Tojiri vertical frame 126,
After moving 178a and 178b to the bathroom-side guide portion 172, the two-fold folding door body 3 is folded by applying an opening force in the prospective direction. When the 2-fold folding door body 3 is completely folded, the small door body 162 is pushed to push the small door body 162 into the 2-fold folding door body 3.
Be sure to fold it to the side. At this time, both the upper and lower slider pins 179a, 17 of the small door end vertical frame 127 of the small door body 162.
After being detached from the undressing room side guide portion 171, 9b further engages with and disengages from the bathroom side guide portion 172 and climbs over this.

As described above, according to the fifth embodiment, the door 5
When the door is opened, the intermediate frame 161 is pushed to push the upper and lower slider pins 51a of the door end vertical frame 46 and the small door Tojiri vertical frame 126.
Since 51b, 178a, and 178b are moved to the bathroom-side guide portion 172, the 2-fold folding door body 3 can be appropriately bent to the bathroom A side in the initial stage of opening. Therefore, the 2-fold folding door body 3, the intermediate frame body 161, and the small door body 16
2 can be released smoothly. Also, the small door 162
Since it can also be folded, a large effective opening width can be secured.

Next, the folding door 1F according to the sixth embodiment of the present invention will be described with reference to FIGS.
In the folding door 1F of this embodiment, the sleeve frames 300a and 300b are rotatably connected to both sides of the two-fold folding door body 3, respectively.
The door body 5 is configured. A pair of left and right sleeve frames 300a, 3
00b is formed of the same shape member having a hollow portion, and is arranged with its right and left reversed. However, the sleeve frame 30 on the door end side
The outer opening / closing handle 1 similar to that of the second embodiment only in 0a.
05 and the inner opening / closing handle 106 are attached. Door end side sleeve frame 300a and door end vertical frame 4 of 2-fold folding door body 3
6 is rotatably connected to each other by using the above-mentioned rotating mechanism 163, and similarly, the sleeve frame 300b on the door-end side and the door-end vertical frame 43 of the double-folded door body 3 are connected to each other by the above-mentioned rotation. They are rotatably connected to each other using a moving mechanism 163.

In the folding door 1F of this embodiment, when the opening operation is performed from the closed state, the entire door body 5 slightly moves to the tail side, and then the two-fold folding door body 3 is folded. And
Eventually, both sleeve frames 300a and 300b are arranged in a straight line on the base of the folded double-fold door body 3 to provide an open form (see FIG. 22). Therefore, in the closed state, a predetermined gap (= L) 3 is provided between the sleeve frame 300b on the door butt side and the vertical frame 8.
01, and the upper and lower slide pins 49a and 49b of the door sill vertical frame 43 are slidably engaged with the upper and lower guide rails 23 and 28 without being fixed to the upper frame 6 and the lower frame 7. There is. Further, a kicking mechanism 302 is provided between the door-end side door body 13 and the upper frame 6.

On the other hand, the door-stop portion of each of the left and right vertical frames 8 is a plurality of snap springs 30 which are evenly arranged in the vertical direction.
3 is attached. The snap spring 303 is formed by bending a leaf spring into an inverted substantially “Ω” shape, and is arranged inward in the mounting direction. Corresponding to this, the snap springs 30 are provided at the outer ends of the sleeve frames 300a and 300b.
A hook-shaped protrusion 304 that engages and disengages is formed on the inside of 3. In the closed state, the sleeve frame 300a on the door tip side is locked by the opposing snap springs 303, and the sleeve frame 300 on the door tail side is locked.
b is separated from the opposing snap spring 303. When the opening operation is started from this state, the sleeve frame 300a on the door end side is disengaged from the snap spring 303, and at the same time, the sleeve frame 300b on the door tail side is locked to the snap spring 303, and then the double-folded door body 3 is folded. Move to opening operation. on the other hand,
In the closing operation, immediately before the completion of closing, the sleeve frame 300a on the door end side
Is locked to the snap spring 303, and at the same time, the door frame side sleeve frame 300b is separated from the snap spring 303.

The kicking mechanism 302 is composed of a kicking arm 306 fixed to the upper frame 41 of the door-end side door body 13 and a kicking block 307 fixed to the upper frame 6. The kicking arm 306 has an arm portion 308 that is bent like a crank.
And a top 309 horizontally provided at the tip of the arm portion 308, and at the base of the arm portion 309, the connecting vertical frame 4 of the upper frame 41.
It is screwed to a portion nearer to 4 and is engaged with the kick block 307 at the top 309. Kick block 30
7 is attached so as to be housed in a recess 310 formed in the upper frame 6 (screwed), and an engaging groove 311 is formed in the lower surface thereof.

The engaging groove 311 comprises a receiving groove portion 312 whose side portion is open to the bathroom A side, and a pair of cam groove portions 313 and 313 obliquely extending from the receiving groove portion 312. The pair of cam groove portions 313 and 313 are left and right. It extends symmetrically. Each cam groove portion 313 has two cam slopes 313a and 313b for guiding the above-mentioned top 309 from both sides. The two cam slopes 313a and 313b and the top 3 are provided.
09 and the positive tilt cam mechanism are configured.
The pair of cam groove portions 313 and 313 can be selectively used depending on whether the door body 5 is left-handed or right-handed.

That is, from the state of FIG. 20, in the initial opening operation in which the sleeve frame 300b on the door butt side is locked by the snap spring 303, the top 309 moving in the door butt direction is moved by the cam slope 313a on the outer side in the prospective direction. It is pushed out to the bathroom A side. As a result, a folding force acts on the two-fold folding door body 3, and the latch (latch mechanism 50) is disengaged from the upper and lower guide rails 23 and 28. Further, in the final closing operation in which the sleeve frame 300a on the door tip side is locked by the snap spring 303, the top 309 moving in the door tip direction is drawn into the undressing room B side by the cam slope 313b on the inner side in the prospective direction. As a result, the pulling force acts on the double-folded door body 3, and the latch (latch mechanism 50) is engaged with the upper and lower guide rails 23 and 28.

In this way, in the closed position (deployed state)
With the initial opening operation of the 2-fold folding door body 3 which is moved slightly in the direction of the door buttocks, the connecting portion of the 2-fold folding door body 3 can be kicked out to the bathroom A side, and with the final closing operation of the 2-fold folding door body 3, The 2-fold folding door body 3 can be pulled in to the closed position. Therefore, it is possible to smoothly open and close the door body 5 by opening and closing the door body 5 in one direction.

Next, with reference to FIG. 23, a folding door 1G according to the seventh embodiment of the present invention will be described. In the folding door 1G of this embodiment, the upper and lower slide pins 49a and 49b incorporated in the door sill vertical frame 43 of the double folding door body 3 are not fixed to the upper frame 6 and the lower frame 7, and the upper and lower guide rails 23,
28 is slidably engaged. Also, the vertical frame 8 on the side of the door
A sufficient gap (= L) 191 is formed between the vertical sliding frame 43 and the door sill 43, and the upper and lower slide pins 49a and 49b and the vertical frame 8 on the door sill side are located in the gap 191. A spring (preferably a pair of upper and lower) 192 for urging the double-folded door body 3 in the door tip direction is interposed in the.

On the other hand, a rod 193 is built in the connecting vertical frame 47 of the door-end side door body 12, and the upper frame 6 is incorporated in this rod 193.
The kicking protrusion 194 and the retracting protrusion 195 fixed to the front face. Kicking protrusion 194 and retracting protrusion 195
Slant surfaces 194a and 195a are formed so as to face each other, and a rod 193 is in contact with both slant surfaces 194a and 195a.

That is, when an opening force is applied in the prospective direction in order to open the two-fold folding door body 3 in the closed state, the two-fold folding door body 3 is guided by both the upper and lower guide rails 23 and 28 and slightly moves in the direction of the tail end. (The above gap 191 minutes). At this time,
The rod 193 rides on the kicking protrusion 194 and is pushed to the bathroom A side by the cam action. Immediately before the closing is completed, the double folding door body 3 is drawn into the undressing room B side and completely closed by the mutual cam action of the rod 193 and the retracting projection 195. That is, the rod 193 and the kicking protrusion 194
The retracting protrusion 195 constitutes a kicking mechanism that exerts an inclined cam action.

In this way, in the closed position (deployed state)
With the initial opening operation of the 2-fold folding door body 3 that is moved slightly in the direction of the door, the connecting portion of the 2-fold folding door body 3 can be kicked out toward the bathroom A side, so the 2-fold folding door body 3 can be smoothly opened without difficulty. can do. In addition, due to the pull-in protrusion 195, 2
The folding door body 3 can be smoothly and smoothly closed.

Next, the folding door 1H according to the eighth embodiment of the present invention will be described with reference to FIG. In the folding door 1H of this embodiment, unlike the seventh embodiment, a gap 201 is formed between the two-fold folding door body 3 and the small door body 121, and the small door body 121 slightly moves in the initial opening operation. The vertical stile 46 of the two-folded door body 3 and the small sill vertical stile of the small door 121
26 and a connecting mechanism 202 for connecting the two-folding door 3 and the small door 121 to each other in a rotatable and separable manner, and a spring (not shown) for urging the two in the separating direction. 20
3 is provided.

On the other hand, a rod 204 is built in the connecting vertical frame 47 of the door-end side door body 12, and the upper frame 6 is incorporated in this rod 204.
The kicking member 205 that is slidably mounted on the front surface faces. A slope 205a is formed at the tip of the kicking member 205, and the rod 204 comes into contact with the slope 205a. Also, the tail end of the kick member 205 is
Pusher 2 protruding from the small room Tojiri vertical frame 126 on the undressing room B side
It is in contact with 06. Although not shown, it is preferable to attach a return spring to the kick member 205.

The two-fold folding door body 3 and the small door body 12 in the closed state
When an opening force in the prospective direction is applied to the small door body 121 to open 1, the small door body 121 is first guided by both the upper and lower guide rails 23 and 28 and slightly moves in the direction of the door end (the above-mentioned gap). 201 minutes). At this time, the pusher 206 pushes the kicking member 205, and the kicking member 205 pushes the rod 2
04 is pushed to the bathroom A side by the cam action. This gives 2
Since the connecting portion of the single-fold door body 3 can be kicked out toward the bathroom A side, the double-fold door body 3 can be smoothly opened.
That is, the rod 203, the kicking projection 205, and the busher 206 constitute a kicking mechanism that exerts an inclined cam action.

Next, the folding door 1I according to the ninth embodiment of the present invention will be described with reference to FIG. In the folding door 1I of this embodiment, the opening / closing handles 211, 211 are mounted on the small door tip vertical frame 127 of the small door 121 so as to be slidable in the prospective direction. First push rod 21 built in
2nd and 2nd folding door body 2 built in the door end side door body 12
The push rod 213 can be operated to move back and forth.

The first push rod 212 is formed in an "L" shape, and is configured to be movable back and forth in the prospective direction. The first push rod 212 is fixed to the opening / closing handles 211 and 211 at the base and is returned to its original position by the first return spring 214. Being urged to return. The second push rod 213 is formed in a single letter,
It is configured to be able to move back and forth in the prospective direction, abuts the tip of the first push rod 212 at the base, and the second return spring 2
It is urged by 15 to return to the original position. It should be noted that the first push rod 212 includes the small door end vertical frame 127, the small door upper frame 124, and the small door door end vertical frame 1 of the small door body 121.
The second first push rod 213 is built over the door end vertical frame 46, the upper frame 41, and the connection vertical frame 47 in the same manner.

The tip portion of the second push rod 213 projects into the connecting vertical frame 47 of the door end side door body 12. On the other hand, a kicking protrusion 216 fixed to the upper frame 6 faces the tip portion of the second push rod 213.
An inclined surface 216a is formed on the kicking protrusion 216, and the tip end portion of the second push rod 213 comes into contact with the inclined surface 216a.

The two-fold folding door body 3 and the small door body 12 in the closed state
When the opening / closing handle 211 is moved to the door butt side in the prospective direction to open the first opening 1, the first and second push rods 2
12, 213 move forward, the tip of the second push rod 213 rides on the kicking protrusion 216, and is pushed out toward the bathroom A side by the cam action. Accordingly, the connecting portion of the double-fold door body 3 can be kicked out toward the bathroom A side, so that the double-fold door body 3 and the small door body 121 can be smoothly opened. That is, the first push rod 212, the second push rod 213, and the kicking protrusion 216 constitute a kicking mechanism that exerts an inclined cam action.

In the present embodiment, the folding door of the present invention is described as a folding door in a bathroom, but it goes without saying that it can be applied to various folding doors including so-called water fields such as shower rooms.

[0083]

As described above, according to the folding door of the present invention, the two-fold folding door body can be slightly bent by performing the initial opening operation so as to close the gap while keeping the door body in the closed posture. The door can be smoothly opened by the opening operation.

[Brief description of drawings]

FIG. 1 is a view of a folding door according to a first embodiment of the present invention viewed from a bathroom side.

FIG. 2 is a vertical cross-sectional view of a folding door according to the first embodiment.

FIG. 3 is a cross-sectional view of a folding door in a closed state according to the first embodiment.

FIG. 4 is a transverse cross-sectional view of the folding door according to the first embodiment in an open state.

FIG. 5 is a plan view of a kicking mechanism according to a modified example of the first embodiment.

FIG. 6 is a plan view of a close contact portion between the double-fold door body and the small door body according to the modified example of the first embodiment.

FIG. 7 is a vertical cross-sectional view of a folding door according to a second embodiment.

FIG. 8 is a cross-sectional view of a folding door in a closed state according to the second embodiment.

FIG. 9 is a transverse cross-sectional view of an open state of a folding door according to the second exemplary embodiment.

FIG. 10 is a vertical cross-sectional view of a folding door according to a third embodiment.

FIG. 11 is a horizontal cross-sectional view of a folding door in a closed state according to a third embodiment.

FIG. 12 is a transverse cross-sectional view of an open state of a folding door according to a third exemplary embodiment.

FIG. 13 is a perspective view of an upper slide pin of a latch structure.

FIG. 14 is a transverse cross-sectional view of a folding door in a closed state according to a fourth embodiment.

FIG. 15 is a horizontal cross-sectional view of an open state of a folding door according to a fourth exemplary embodiment.

FIG. 16 is a vertical cross-sectional view of a folding door according to a fifth embodiment.

FIG. 17 is a horizontal cross-sectional view of a folding door in a closed state according to a fifth embodiment.

FIG. 18 is a horizontal cross-sectional view of the folding door according to the fifth exemplary embodiment in an open state.

FIG. 19 is an exploded perspective view around a turning mechanism of a folding door according to a fifth embodiment.

FIG. 20 is a horizontal cross-sectional view of a folding door in a closed state according to a sixth embodiment.

FIG. 21 is a vertical cross-sectional view of the upper portion of the folding door according to the sixth embodiment.

FIG. 22 is a transverse cross-sectional view of a folding door in a closed state according to the sixth embodiment.

FIG. 23 is a horizontal cross-sectional view of a folding door in a closed state according to a seventh embodiment.

FIG. 24 is a transverse cross-sectional view of a folding door in a closed state according to an eighth embodiment.

FIG. 25 is a structural view of a folding door in a closed state according to a ninth embodiment.

[Explanation of symbols]

1 (1A, 1B, 1C, 1D, 1E, 1F, 1G, 1
H, 1I) Folding door, 2 frame, 32 two-fold door, 4 small door, 6 upper frame, 7 lower frame, 8 vertical frame, 12 front doors, 13 rear doors, 43 rear doors Vertical frame, 46 door vertical frame, 121 small doors, 122a, 122b connection mechanism,
126 Small Door Toriji Vertical Frame, 127 Small Door Toe Vertical Frame, 191
Gap, 193 rod, 194 kicking protrusion, 201
Gap, 204 rod, 205 kick member, 206
Busher, 211 Open / close handle, 212 First push rod, 213 Second push rod, 216 Ejection protrusion, 301 Gap, 302 Ejection mechanism, 303
Snap spring, 304 protrusion, 313a, 313b
Cam slope, A bathroom, B dressing room,

Claims (2)

[Claims] 1. A frame body, a two-fold folding door body which is opened / closed by being guided by the frame body, and is opened / closed by being guided by the frame body, and is rotatably attached to a front end portion of the two-fold folding door body A door body composed of connected small door bodies, wherein the small door body is folded and opened so as to overlap with the double-folded door body in the open state folded in two, and the door of the frame body is provided. A gap is formed between the vertical frame on the butt side and the door butt side portion of the two-fold folding door body so that the door body can move in the initial opening operation, and between the two-fold folding door body and the frame body. The folding door is configured with a kicking mechanism that presses the two-fold folding door body in the folding direction in conjunction with the initial opening operation of the door body. 2. A frame body, a two-fold folding door body which is opened / closed by being guided by the frame body, and which is opened / closed by being guided by the frame body, and is rotatable to a door-end side portion of the two-fold folding door body. A folding door provided at a doorway of a bathroom having a door body composed of small door bodies connected to each other, wherein the folding door is provided between a vertical frame on the door butt side of the frame body and a door butt side portion of the two folding door body. Is configured with a gap in which the door body can move in the initial opening operation, and the two-fold door body is interlocked between the two-fold door body and the frame body in association with the initial opening operation of the door body. A kicking mechanism that presses in the folding direction is configured, and the kicking mechanism includes an inclined cam provided on the undressing chamber side of the frame body and a pin-shaped member provided on the door body, and the inclined cam includes , A pair that exerts an inclined cam action on the pin-shaped member in the initial opening operation and the final closing operation of the door body, respectively. The folding door is characterized in that the cam surface of is formed.