JP2001336359A - Folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door which can be easily opened or closed with the dead space reducible resulting from opening or closing thereby creating a large effective opening width in a state where it is fully opened. SOLUTION: A frame body 2, a double folding door body 3 making opening and closing operations guided by the frame body 2, and a small door body 4 attached to a stile 41 at the tip of the door and guided by the frame body 2 for open and close operation in a freely and mutually rotatable manner are equipped, and the double folding door body 3 and a small door body 4 are constituted in a freely opening and closing manner between the closed state extended linearly in a detectable direction and the open state folded up in an overlapped manner in the detectable direction.

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 an entrance in a bathroom having an entrance with a wide opening.

[0002]

2. Description of the Related Art In a bathroom or the like having a barrier-free design,
The entrance is widely formed in consideration of the entrance and exit of a user in a wheelchair and the entrance and exit with a caregiver.
The thing described in 08888 is known. This folding door is composed of a frame and a pair of two folding doors provided to be openable and closable on the frame, and a sufficient effective opening is obtained by opening the two folding doors so as to be folded right and left. Like that.

[0003]

In such a conventional folding door, the dead space associated with the opening and closing operation can be reduced as compared with, for example, an inward-opening bathroom door and the like, and the effective opening can be reduced as compared with a sliding door and the like. This has the advantage that the width can be increased. However, when opening and closing, it is necessary to open and close the two two-folded door bodies respectively, and there is a problem that the opening and closing work becomes extremely complicated.

An object of the present invention is to provide a folding door that can be easily opened and closed, can reduce a dead space associated with the opening and closing, and can increase an effective opening width when the door is opened.

[0005]

SUMMARY OF THE INVENTION A folding door according to the present invention comprises a frame, a two-fold door that is opened and closed by being guided by the frame, and a two-fold door that is opened and closed by being guided by the frame. A small door body rotatably attached to the front vertical frame.
The single-fold door body and the small door body are configured to be openable and closable between a closed state in which they are linearly deployed in the finding direction and an open state in which they are folded in the finding direction.

According to this configuration, the two-folded door body and the small door body are configured to be openable and closable between a closed state in which they are linearly deployed and an open state in which the two-folded door body is folded. The door can be opened and closed integrally with the door.
In addition, the dead space when folding the two-folded door body and the small door body with respect to the opening width in which they are linearly expanded is 2 mm.
Because the trajectory drawn by the folding door body and the trajectory drawn by the small door body overlap,
Only those that are caused by opening and closing the two-fold door body. In addition, not only the two-fold door body but also the small door body is folded,
It is possible to secure a sufficient effective opening width.

[0007] In this case, it is preferable to provide a folding regulating mechanism that allows the small door body to be folded in a state where the two-fold folding door body is folded.

According to this configuration, when the two-folded door body is opened (folded), the small door body is always guided by the frame and moves, so that the small door body fluctuates and the two-folded door body is opened. Operation does not become unstable, and when folding the small door body, because the two-folded door body is already folded,
The folding operation of the small door body does not become unstable.

[0009] In these cases, it is preferable to provide a deployment regulating mechanism that enables the two-folded door to be deployed in a state where the small door body is deployed in parallel with the frame.

According to this structure, when the two-folded door body is closed (deployed), the small door body is unfolded and guided by the frame to move. When the small door is unfolded, the closing operation of the body is not unstable, and the unfolding operation of the small door is unstable because the two-folded door always keeps the folded state. Nothing. Further, in the closing operation, the door of the small door body is abutted against (the vertical frame of) the frame, so that the sealing structure between the door of the small door and the frame can be simplified. it can.

In these cases, a narrow intermediate frame is interposed between the two-folded door and the small door, and the intermediate frame is turned with respect to the two-folded door and the small door. Preferably, it is configured to be movable.

According to this structure, when the small door body is further folded into the folded two-fold door body, the width of the intermediate frame body is reduced by two.
A gap is created between the folding door body and the small door body. Therefore, 2
It is possible to prevent interference between the small door body and the handle for opening and closing attached to the single folding door body as much as possible.

On the other hand, the small door is opened and closed by being guided by a pair of upper and lower guide rails formed on the frame at a door end side end and a door end side end. It is preferable that the two-fold door is configured to be able to be disengaged in the expected direction with respect to the guide rail in a state where the two-fold door is folded.

According to this configuration, when the two-folded door body is opened and closed (folding operation and unfolding operation), the small door body always moves while being guided by the upper and lower guide rails. The opening / closing operation of the folding door body does not become unstable. In addition, the small door body can be folded and unfolded in a state where the two-folded door body is folded, and the opening and closing operation of the small door body does not become unstable. Further, in the closing operation, the door of the small door body is abutted against (the vertical frame of) the frame, so that the sealing structure between the door of the small door and the frame can be simplified. it can.

In this case, the small door body is slidably engaged with a pair of upper and lower guide rails at the door end side end,
A pair of upper and lower sliders which are slidably biased in a protruding direction by a spring are mounted, and each slider has an outer inclined guide surface which allows engagement with a guide rail from an expected direction against the spring. Is preferred.

According to this structure, when the door end of the small door body is engaged with the guide rail from the expected direction, the door end of the small door body is strongly pushed toward the guide rail. The slider is guided by its outer inclined guide surface and sinks against the spring to engage the guide rail.
That is, when the small door body in the folded state is deployed, the small door body can be engaged with the guide rail like a door latch.

In this case, it is preferable that each slider has an inner inclined guide surface that allows the slider to separate from the guide rail in the expected direction against the spring.

According to this construction, when the door end of the small door is detached from the guide rail in the expected direction, the door end of the small door is strongly pushed outward from the guide rail, whereby the slider is moved. Is guided by the inner inclined guide surface and sinks against the spring, and separates from the guide rail. That is, when folding the small door body in the folded state,
The small door body can be detached from the guide rail like a door latch.

In this case, each of the sliders has a vertical slide surface which is continuous with the inner inclined guide surface and slidably comes into contact with each of the guide rails. The small door is guided to the guide rails by the frame and moves to the open end position. In this case, it is preferable that a pressing portion is provided to press each slider against the spring and move the guide rail relatively from the vertical slide surface to the inner inclined guide surface.

According to this configuration, in a state where the two-folded door is folded, the slider provided at the door end side end of the small door body is engaged and disengaged from the guide rail like a door latch. In a state where the slider is not completely folded, the vertical sliding surface of the slider is in sliding contact with the guide rail, and the slider does not separate from the guide rail even when a force in the expected direction is applied to the small door body. Therefore, it is possible to prevent the slider on the door end side of the small door body from coming off the guide rail at a position other than the predetermined position.

A pair of upper and lower sliders which are slidably engaged with a pair of upper and lower guide rails and are slidably urged in the protruding direction are attached to the door end side end of the small door body. It is preferable that a detachment mechanism for moving each slider up and down and engaging and disengaging from each guide rail is incorporated in the small door body.

According to this configuration, the user can manually disengage the slider on the door end side of the small door with respect to the guide rail.

In this case, it is preferable that the operator of the detaching mechanism also serves as a handle of the small door body.

According to this configuration, the user can hold the handle of the small door body and open and close the two-folded door body and the small door body by a continuous operation.

In these cases, in a state where the two-folded door body is folded, the two-folded door body is locked to the frame in conjunction with the folding operation of the small door body, and the two-folded door body is linked with the unfolding operation of the small door body. It is preferable to provide a lock / unlock mechanism for releasing the lock of the folding door body.

According to this configuration, when the two-folded door is closed (deployed), the small door is unfolded and guided and moved by the frame. When the small door is unfolded, the closing operation of the body is not unstable, and the unfolding operation of the small door is unstable because the two-folded door always keeps the folded state. Nothing. That is, it is possible to prevent the closing operation (deployment operation) of the two-folded door body in a state where the small door body is folded.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 large effective opening width in consideration of entering and exiting with a caregiver. FIG. 1 is a view of the folding door as viewed from the bathroom side. As shown in the drawing, the folding door 1 has a frame 2, a two-folded folding door 3 and a small door which are attached to the frame 2 so as to be freely opened and closed. 4.

The frame 2 is constituted by an upper frame 5, a lower frame 6, and both vertical frames 7, 7. 2 folding doors 3
Is constructed by abutting a door end side door body 8 and a door end side door body 9 and foldably connecting them via a connection fitting 10. Further, a small door body 4 is rotatably attached to a door end side end of the door side door body 8 of the two-folded door body 3. In this case, the folding door 1 is closed when the two-fold folding door body 3 and the small door body 4 are linearly developed in the finding direction, and is opened by being folded in the finding direction in a double fold.

As shown in FIGS. 1 to 4, the upper frame 5 of the frame 2 has an upper frame main body 21 formed in an inverted “L” shape, and a dressing room suspended from the lower surface of the upper frame main body 21. The upper frame seal mounting piece 22 on the B side and the upper guide rail 23 on the bathroom side are integrally formed. An upper seal member 24 extending toward upper frames (described later) 35, 51 of the doors 8, 9, 4 is attached to the upper frame seal attachment piece 22. Lower frame 6
Is composed of a lower frame body 26 having a lower guide rail 27 facing the upper guide rail 23 and a lower frame parting piece 28 extending in an inverted “L” shape from the lower frame body 26 to the undressing room B side. , Are formed integrally. A lower seal member 29 extending toward lower frames (described later) 36, 52 of the doors 8, 9, 4 is attached to the lower frame parting piece 28.

Each of the left and right vertical frames 7 is integrally formed by a vertical frame main body 31 whose bathroom A side is bent in a U-shape and a vertical frame seal mounting piece 32 projecting from the inner surface of the vertical frame main body 31. Is formed. The one vertical frame seal mounting piece 32 has a vertical seal member 33 extending toward a door bottom vertical frame (described later) 37.
However, the other vertical frame seal attachment piece 32 has a vertical seal member 33 extending toward a small door door end vertical frame (described later) 54.
Are attached respectively.

On the other hand, the door bottom side door body 9 is composed of an upper frame 35 and a lower frame 36, a door bottom vertical frame 37 and a connecting vertical frame 38, and a panel body 39 fitted into the frame. ing. Similarly, the door-side door body 8 is configured by frame-assembling an upper frame 35 and a lower frame 36, a door-side vertical frame 41 and a connecting vertical frame 38, and fitting a panel body 39 into the frame. .

Further, at the upper and lower intermediate positions of the door-side door body 8,
A pulling portion 42 is formed on the undressing room B side, and a vertically long towel rail 43 also serving as a puller is mounted on the bathroom A side (the connecting vertical frame 38). The small door 4 is rotatably attached to the vertical door frame 41 of the door-side door 8. Also,
The lower frame 36 of each of the doors 8 and 9 is provided with a ventilation gallery 44 that communicates with the inside and outside of the room. Reference numerals 46 and 47 in FIG. 3 denote lower seal pieces provided on the lower frame 36 and the connection fitting 10, respectively, and both lower seal pieces 46 and 47 come into close contact with the lower guide rail 27. .

A panel body 39 is attached to one end of each connecting vertical frame 38, and the connecting fitting 10 is attached to the other end of the connecting vertical frame 38 so that a half of the connecting metal fitting is swallowed. The panel body 39 is mounted on one end of the vertical door frame 37, and a hinge pin 48 is mounted on the other end. in this case,
At the other end of the semicircular cross section, the hinge pin 48
They are arranged above and below the axis respectively. Similarly, the door vertical frame 41 has a panel body 39 attached to one end and a hinge pin 48 attached to the other end, and the hinge pin 48 has a semicircular cross-section at the other end. They are arranged above and below the axis respectively.

An upper door bottom slider 49a and a lower door bottom slider 49b are attached to the vertical door frame 37 via upper and lower hinge pins 48, respectively. Door bottom slider 49b
Thereby, the upper guide rail 23 and the lower guide rail 27 are slidably supported by the above. Similarly, a door top upper slider 50a and a door head lower slider 50b are respectively attached to the door top vertical frame 41 via upper and lower hinge pins 48, and the door head side door body 8 is connected to the door head upper slider 50a and the door head. The lower slider 50b slidably supports the upper guide rail 23 and the lower guide rail 27, respectively.

However, the upper door bottom slider 49a and the lower door bottom slider 49b are fixed to the upper and lower guide rails 23, 27 immovably. Thereby, the two-fold folding door body 3
A state in which the door-side doors 9 and the door-side doors 8 are arranged side by side over the entire width of the frame 2, and the door-side doors 8 are folded on the door-side doors 9. Opening and closing operations are performed between the open and closed states.

The small door body 4 is composed of a small door upper frame 51 and a small door lower frame 52, a small door door bottom vertical frame 53 and a small door front vertical frame 54, and a vertically long panel body. 55 is fitted. A panel body 55 is attached to one end of each of the small door door vertical frame 53 and the small door front vertical frame 54, and a hinge pin 56 is mounted to the other end, and the hinge pin 56 has a semicircular shape. At the other end of the cross section, they are arranged above and below the axis, respectively.

In this case, too, the small door door bottom vertical frame 53 is connected to the door bottom upper slider 57 via the upper and lower hinge pins 56.
a and the bottom door bottom slider 57b are attached to the small door top vertical frame 54 via upper and lower hinge pins 56, respectively.
Are attached. The small door body 4 is formed by these upper and lower sliders 57a, 57b, 58a, 58b.
The above upper guide rail 23 and lower guide rail 27
Are slidably supported.

The slider 57a above the door end of the small door door bottom vertical frame 53 and the door top upper slider 50a of the above door front vertical frame 41
Are arranged adjacent to each other, and the slider 57b below the door end of the small door door frame 53 and the slider 50b below the door frame 41 are arranged adjacent to each other. Therefore, both upper sliders 57a and 50a and both lower sliders 57a
Preferably, b and 50b are formed integrally with each other.

On the other hand, the door-side vertical frame 41 of the door-side door body 8 has
Small door door vertical frames 53 are rotatably attached to each other via a rotation mechanism 12. Although the turning mechanism 12 is provided at two locations above and below, since they have the same structure, only the upper turning mechanism 12 will be described here. FIG.
As shown in the figure, the door vertical frame 41 and the small door door bottom vertical frame 53 are connected with their arc surfaces facing each other.
Is a vertical frame hinge block 61 attached to a door vertical frame 41.
, A small door hinge block 62 attached to the small door door vertical frame 53, and a hinge arm 63 connecting the two hinge blocks 61, 62.

The vertical frame hinge block 61 is a door frame 41.
Has substantially the same peripheral surface shape as the end of
Is attached to the notch 64 formed at the upper part of the door, and is screwed to the vertical frame 41 in this state. Similarly, the small door hinge block 62 has substantially the same peripheral surface shape as the end of the small door door butt vertical frame 53, and is attached to a notch 65 formed on the upper portion of the small door door butt vertical frame 53. In this state, small door door bottom vertical frame 5
3 screwed.

The vertical frame hinge block 61 is formed with an arm slit 61a facing the hinge arm 63 at an upper and lower intermediate position, and an upper shaft pin 66 is vertically penetrated. Similarly, the small door hinge block 62 includes
An arm slit 62a facing the hinge arm 63 is formed at an upper and lower intermediate position, and a lower portion of the upper shaft pin 67 passes vertically. One end of the hinge arm 63 is rotatably supported by the shaft pin 66 while being inserted into the arm slit 61a of the vertical frame hinge block 61, and the other end is a small door hinge. Block 62
The arm pin 62a is rotatably supported by the shaft pin 67 in a state of being inserted into the arm slit 62a. In this way,
The vertical door frame 41 and the small door door vertical frame 53 are rotatably connected to each other with their semicircular ends facing each other.

By the way, the two-folded door body 3 and the small door body 4
As shown in FIGS. 1 and 4, it is configured to be freely openable and closable between a closed state in which it is linearly deployed and a folded open state. In the closing operation, after folding the two-folded door body 3, The small door body 4 can be folded. Conversely, in the opening operation, after the small door body 4 is deployed, the two-folded door body 3 can be deployed. Therefore, next, a folding regulating mechanism 14 for regulating the folding of the small door body 4 and a deployment regulating mechanism 16 for regulating the deployment of the double folding door body 3 will be described.

FIG. 6 shows an upper door tip slider 58a mounted on the upper end of the small door door frame 54. Slider 5 above the door
8a is a slider body 71 having a door roller 72,
A holder 73 that accommodates the slider body 71 and a coil spring 74 that urges the slider body 71 upward (in the protruding direction) are provided. The holder 73 is inserted and mounted on the upper end of the small door frame 54 from above, and holds the slider main body 71 therein so as to be vertically slidable.

The slider body 71 is integrally formed with a body portion 76 that slides on the inner surface of the holder 73, a roller mounting portion 77 connected to the upper side of the body portion 76, and a stopper pin portion 78 connected to the lower side of the body portion 76. The roller mounting portion 7
7, a door roller 72 is rotatably attached.
The lower portion of the stopper pin portion 78 passes through the bottom plate of the holder 73, and the lower end portion 78a is formed in a bulging shape. Between the lower surface of the body portion 76 and the bottom surface of the holder 73, the coil spring 7 is wound around a stopper pin portion.
The slider body 71 urged upward by the coil spring 74 has its lower end portion 78a of the stopper pin portion 78 held on the bottom plate of the holder 73, so that its rising end position is regulated. It has become.

The roller mounting portion 77 has a vertical slit 77a formed at an intermediate position thereof in sliding contact with the upper guide rail 23, and a door roller 72 is rotatably mounted in a deep portion of the vertical slit 77a. The upper portion of the roller mounting portion 77 is formed in a mountain shape on both sides of the longitudinal slit 77a with outer inclined guide surfaces 77b, 77b and inner inclined guide surfaces 77c, 77c. That is, the upper portion of the vertical slit 77a is a vertical guide surface 77d that slides on the upper guide rail 23, and the inner inclined guide surface 7 is provided at the upper end of the vertical guide surface 77d.
7c, and the outer inclined guide surface 77b is further connected to the top through the top.

On the other hand, as shown in FIG. 7, a pair of pressing projections 79 are provided on the lower surface of the upper frame 5 on both sides of the upper guide rail 23. A pair of pressing projections 79,
79 is an inverted mountain-shaped projection having a cam slope 79a,
The small door body 4 is disposed at a position where the small door-side vertical frame 54 of the small door body 4 faces in a state where the two-folded door body 3 is folded. That is, when the two-folded door body 3 is folded to open it, the pair of pressing projections 79 are provided with an outer inclined guide surface 77 formed in a mountain shape.
The top of b and the inner inclined guide surface 77c engage. As a result, the slider body 71 is pushed down, and the inner inclined guide surface 77c faces the side of the upper guide rail 23 instead of the vertical guide surface 77d.

In this state, when the door end side of the small door body 4 is pressed toward the interior of the bathroom A, the door top upper slider 58a sinks with the inner inclined guide surface 77c as a guide, and then separates from the upper guide rail 23. . Then, the small door body 4 is folded along the two-folded door body 3 already folded.
In the reverse order, the folded small door body 4 is unfolded, and when the door top upper slider 58a is strongly pulled toward the undressing room B from the state in which it is in contact with the side surface of the upper guide rail 23, the outer inclined guide surface 77b , The door top upper slider 58a is engaged with the upper guide rail 23.

That is, the upper door tip slider 58a has a latch structure, and the upper door slider of this latch structure (the lower door tip slider 58b also has a similar structure).
The folding control mechanism 14 is constituted by 8 a and the pressing projection 79. In this manner, the folding door 1 can be folded and unfolded only when the two folding door bodies are folded by the folding regulating mechanism 14, so that the folding door 1 can be smoothly opened and closed.

Next, referring to FIG.
Will be described. The deployment regulating mechanism 16 includes a guide hole 81 formed in the slide base 81 of the upper door-side slider 57a.
a, a spring 83 for urging the lock pin 82 in the immersion direction, and an arc-shaped inclined cam provided along the hinge pin 48 at the upper end of the small door door vertical frame 53. 84. A pin hole 85 into which the upper end of the lock pin 82 is inserted from below is formed in the upper frame 5 where the upper end of the lock pin 82 faces when the two-folded door body 3 is folded.

When the small door body 4 is in the unfolded state, the lock pin 82 is urged by the spring 83 to be at the lower end position.
When the small door body 4 is folded, the lower end of the lock pin 82 comes into sliding contact with the cam surface 84 a of the arcuate inclined cam 84, and the cam action causes the lock pin 82 to rise against the spring 83. Finally, when the small door body 4 is completely folded, the upper end of the lock pin 82 is inserted into the pin hole 85 of the upper frame 5, and
The upper door slide slider 57a is locked to the upper frame 5. Conversely, when the folded small door body 4 is unfolded, the lock pin 82 is lowered by the cam action of the arcuately inclined cam 84, and the upper end thereof is pulled out from the pin hole 85 to release the lock. .

As described above, when the small door body 4 is folded, the slider 57a above the door end of the small door body 4 is locked, and at the same time, the movement of the two-folded door body 3 is restricted and the door cannot be deployed. That is, unless the small door body 4 is deployed, the two-folded door body 3 cannot be deployed (closed operation). Therefore,
The two-folded door body 3 is not unfolded (closed operation) while the small door body 4 is folded, and the user is not forced to perform the closed operation again.

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the user can manually engage and disengage the upper slide (and the lower slide 58b) 58a with respect to the upper guide rail (lower guide rail 27) 23. 9 includes a rotating link 93 fixed to a support shaft 92 of a lever handle 91 provided on the small door body 4, and upper operation wires 94 and lower operation wires 95 provided at both ends of the rotating link 93. are doing. The upper end of the upper operation wire 94 is connected to the lower end of the stopper pin 78 of the door tip upper slider 58a, and the lower end of the lower operation wire 95 is connected to the upper end of the stopper pin 78 of the door tip lower slider 58b. I have.

The user holds the above-described handle portion 42 of the door-side door body 8 and the lever handle 91 and moves the small door body 4 in the direction of finding while folding the double-folded door body 3 into the bathroom A. First, the two-fold folding door body 3 is folded.
When the double folding door body 3 is completely folded, the lever handle 91
To rotate. As a result, the upper and lower operation wires 94 and 95 are pulled through the rotating link 93, and the upper door slider 58a and the lower door slider 58b are pulled out from the upper guide rail 23 and the lower guide rail 27 in the vertical direction, respectively. (break away). In this way, the small door body 4
Can be inserted. In addition, in the reverse order, the top slider 58a and the bottom slider 58b engage with the upper guide rail 23 and the lower guide rail 27.

Similarly, the one shown in FIG. 10 simply immerses the upper door slider 58a and the lower door slider 58b from the upper and lower ends of the small door vertical frame 54 by means of the slide knob 97, respectively. . Door top slider 58
As an example, a slide knob 97 is slidably provided in the upper part of the small door door vertical frame 54 in the vertical direction. An arm 98 extends from the rear surface of the slide knob 97, and the arm 98 is connected to a stopper pin 78 of the upper slider 58a via a wire 99.

In this case, by sliding the slide knob 97 downward, the upper slider 58a is
The small door 4 is pulled out (removed) by the upper guide rail 23 and can be folded. In addition, the door top upper slider 58a engages with the upper guide rail 23 in the reverse order. Although not shown in the drawings, it is preferable to provide a lock mechanism for locking the slide knob 97 slid downward at the lower end position.

As described above, according to the present embodiment, the two-folded door body 3 and the small door body 4 are connected and opened and closed as a single unit. Can be. Further, since the small door body 4 is provided, the two-fold door body 3 can be formed narrower than the opening width, so that the dead space in the bathroom A required for opening and closing the two-fold door body 3 is reduced. be able to. Further, since the small door body 4 is folded along the two-fold door body 3, the effective opening width of the folding door 1 can be widened.

Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, a narrow intermediate frame 18 is interposed between the two-folded door body 3 and the small door body 4. Also, on the bathroom A side of the door end side door body 8,
Instead of the above-described vertically long towel rail 43, a horizontally long towel rail 71 is attached so as to pass over the door vertical frame 41 and the connecting vertical frame 38, and the bathroom A of the small door door frame 54 of the small door body 4 is provided. Handles 72, 72 are attached to the side and the undressing room B side, respectively. The towel rack 71 and handle 7
2, 72 are displaced in the vertical direction.

The intermediate frame 18 is formed to have almost the same height as the two-folded door body 3 and the small door body 4, and is rotated by the same rotation mechanism 12 as that shown in FIG. It is configured to be rotatable with respect to the two-folded door body 3 and the small door body 4. The folding door 1 according to the third embodiment configured as described above is in a deployed state (closed).
The sheet folding door body 3, the intermediate frame body 18, and the small door body 4 are arranged side by side on a straight line to be in a closed state. When the small door body 4 is folded after the two-folded door body 3 is folded, a gap corresponding to the width of the intermediate frame body 18 is formed between the two-folded door body 3 and the small door body 4 by the intermediate frame body 18. Occurs. Thereby, the towel rail 71
Can be prevented from interfering with the small door body 4 and the handle 72 with the double folding door body 3 as much as possible.

In the present embodiment, the folding door of the present invention is described as a folding door in a bathroom. However, it is needless to say that the present invention can be applied to various folding doors including a so-called water room such as a shower room.

[0060]

As described above, according to the folding door of the present invention, 2
The two-folded door body and the small door body are configured to be openable and closable between a closed state in which they are linearly deployed and an open state in which they are folded, so that the two-folded door body and the small door body can be easily opened and closed integrally. be able to. Further, the dead space when these are folded can be made smaller than that of a door or the like. Further, since the small door body is folded so as to overlap the two-folded door body, a sufficient effective opening width can be secured.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of the folding door according to the embodiment in a closed state.

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

FIG. 4 is a longitudinal sectional view of the folding door according to the embodiment.

FIG. 5 is an exploded perspective view of a rotation mechanism provided between the door-side door and the small door.

FIG. 6 is a structural view of a small door body around a slider above a door tip.

FIG. 7 is a structural view showing a relationship between a top slider of a small door body and a pressing protrusion provided on an upper frame (a folding restriction mechanism).

FIG. 8 is a structural diagram around a deployment regulating mechanism.

FIG. 9 is a structural view of a small door body according to a second embodiment around a slider above a door tip (1).

FIG. 10 is a structural view of a small door body according to a second embodiment around a slider above a door tip (2).

FIG. 11 is a cross-sectional view of an open state of a folding door according to a third embodiment of the present invention.

[Explanation of symbols]

1 folding door, 2 frames, 3 double folding doors, 4 small doors, 5
Upper frame, 6 Lower frame, 8 door-side doors, 9 Door-side doors, 1
2 Rotation mechanism, 14 Folding regulation mechanism, 16 Deployment regulation mechanism, 18 Intermediate frame, 23 Upper guide rail, 27
Lower guide rail, 37 vertical door frame, 41 vertical door frame, 5
7a Tojiri upper slider, 57b Tojiri lower slider, 58
a top slider, 58b bottom slider, 71
Slider body, 73 Holder, 74 Coil spring, 77
b Outside inclined guide surface, 77c Inside inclined guide surface, 7
7d vertical guide surface, 78 stopper pin portion, 79 pressing projection, 82 lock pin, 84 arc-shaped inclined cam, 85
Pin hole, 91 lever handle, 93 rotating link,
94 upper operation wire, 95 lower operation wire, 97 slide knob, 99 wire, A bathroom, B undressing room,

Claims (11)

[Claims] 1. A frame, a two-folded door that is opened and closed by being guided by the frame, and that is opened and closed by being guided by the frame, and that the two-folded door is vertically rotated by a door frame. A small door body movably attached, wherein the two-folded door body and the small door body are in a closed state in which the door is linearly deployed in the finding direction and an open state in which the folding door is folded in the finding direction. A folding door that can be opened and closed freely. 2. The folding door according to claim 1, further comprising a folding regulating mechanism that allows the small door body to be folded in a state where the two-fold folding door body is folded. 3. The device according to claim 1, further comprising a deployment restricting mechanism that allows the two-folded door to be deployed in a state where the small door is deployed in parallel with the frame. Orito. 4. A narrow intermediate frame is interposed between the two-folded door body and the small door body, and the intermediate frame body includes the two-folded door body and the small door body. 4. The folding door according to claim 1, wherein the folding door is configured to be rotatable with respect to the door. 5. The small door body is engaged with a pair of upper and lower guide rails formed on the frame body at two places, a door end side end and a door end side end, to guide the opening and closing operation, 2. The folding door according to claim 1, wherein in a state where the two-fold folding door body is folded, the door-end side end is configured to be able to be engaged and disengaged with respect to the guide rail in an expected direction. 6. A pair of upper and lower guide rails slidably engaged with the pair of upper and lower guide rails and slidably urged in a protruding direction by a spring at the door end side end of the small door body. The slider according to claim 5, wherein a slider is mounted, and each of the sliders has an outer inclined guide surface that allows engagement with the guide rail in a prospective direction against the spring. Orito. 7. The folding door according to claim 6, wherein each of the sliders has an inner inclined guide surface that allows the slider to separate from the guide rail in the expected direction against the spring. 8. Each of the sliders has a vertical slide surface which is continuous with the inner inclined guide surface and slidably contacts the guide rail, and the small door body is guided by the guide rail and opened in the frame body. When moved to the end position, there is provided a pressing portion that presses each of the sliders against the spring and moves the guide rail relatively from the vertical slide surface to the inner inclined guide surface. The folding door according to claim 7, wherein 9. A pair of upper and lower sliders slidably engaged with the pair of upper and lower guide rails and slidably urged in the protruding direction are provided at the door end side end of the small door body. The folding door according to claim 5, wherein a detachment mechanism is installed in the small door body to move the sliders up and down to engage and disengage with the guide rails. 10. The folding door according to claim 9, wherein the operator of the detachment mechanism also serves as a handle of the small door body. 11. In a state where the two-folded door body is folded, the two-folded door body is locked to the frame in conjunction with the folding operation of the small door body, and is linked with the unfolding operation of the small door body. And a lock / unlock mechanism for unlocking the two-fold door body.
Orito according to any of 0.