JP3517634B2 - Folding door - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door attached to a doorway of a bathroom or the like , which has a latch lock device for holding the folding door in a closed state .

[0002]

2. Description of the Related Art As shown in FIG. 1, a folding door D mounted between a bathroom and a dressing room is provided with a connecting member 5 for connecting left and right doors d1 and d2.
It is connected so as to be foldable / expandable via and is housed in a frame F attached to the entrance / exit of the bathroom. When pushing the connecting portion h toward the bathroom, the slide hinges 102 provided on the upper and lower ends of the hanging-side vertical frame 82 are moved along the rails formed on the upper frame 1 and the lower frame 2 to open the folding. In addition, the slide hinge can be deployed and closed by moving the slide hinge in the opposite direction by pulling the connecting portion toward the dressing room. Then, the latch lock devices CL and NL are used to maintain the closed state.

In the conventional latch lock device, the latch head is simply biased so as to project downward from the lower rail. However, if the floor of the bathroom, the floor of the dressing room, and the lower rail are designed to be on the same plane and are barrier-free, when the folding door is opened on the bathroom side, the tip of the latch head is in the bathroom. There is a risk of contact with the floor,
There are problems such as damage to the latch head and scratches on the floor. Paying attention to this, the latch head protrudes below the lower rail only when the folding door is closed, and when the folding door starts to open, the latch head is retracted above the lower rail to prevent damage to the latch head. A latch lock device for folding doors that prevents and prevents damage to the bathroom floor surface, for example,
It was disclosed in Japanese Patent Laid-Open No. 11-315659.

In this prior art, a mounting member fixed to the first door, a movable body which is always urged upward by the first urging member with respect to the mounting member, and a movable body which can be lifted and lowered to the lower end portion thereof. A latch unit, which is housed in and is constantly urged downward by a second urging member, and a driven cam member that is attached to the lower end of the movable body and has an upward taper portion at one end, The actuating member has a downward taper portion corresponding to the upward taper portion of the driven cam member of the latch unit. Then, the latch unit is attached to the door-side vertical frame of the first door, and the actuating member is attached to the door-side vertical frame of the second door such that the tapered portions face each other when the folding door is closed. As a result, when the folding door is closed, the taper portion of the actuating member pushes down the taper portion of the driven cam member of the movable body of the latch unit to lower the movable body. The latch head is moved to a position lower than the lower rail.

[0005]

However, in the above prior art, since the driven cam member is attached to the first door and the actuating member is attached to the second door, both taper portions surely come into contact with each other when the folding door is closed. In order to do so, both the driven cam member and the actuating member must be cantilevered. Then, when the folding door is closed, the driven cam member always receives a pressing force from the actuating member on only one side. Therefore, the driven cam member and the operating member may be deteriorated and damaged by mechanical fatigue during long-term use. In order to reduce the deterioration by using the driven cam member and the actuating member that are as short as possible, it is necessary to make the cross-sectional area of the connecting member as small as possible. This leads to a decrease in connection strength. Further, if there is an error in the mounting position of either the driven cam member or the actuating member, the two taper portions cannot co-operate, and there is a possibility that the door may not be locked when the folding door is closed. Further, in the case of the above-mentioned prior art, it is necessary to perform processing on the door-end side vertical frame of the first door and the door-side vertical frame of the second door different in shape and size for attaching the latch unit and attaching the operating member. Therefore, the processing and management of the frame material is complicated.

The present invention has been made in view of the above points, and its object is to constantly urge the latch head downward.
When the folding door is opened, move the movable body
Biases, by at Orito closure moves downward to prevent damage to the latch head, so as not to scratch the bathroom floor
In the folding door equipped with the latch lock device, the latch lock device can be easily attached , and the operation of the movable body can be performed stably and reliably.
And to extend the service life by reducing mechanical deterioration.

[0007]

Folding door of the present invention In order to achieve the above object, according, (a)
The front of the connecting material that pivotally connects the left and right doors of the folding door is closed
Exposed from between the vertical frames on the connecting material side,
(B) folding from the below latch unit and later actuating member ing
A door latch locking device is attached, and (c) the latch unit is attached to a connecting member that relatively rotatably connects the left and right doors of the folding door, and A fixing member that is housed and fixed in the upper part, and the fixing member is housed in the upper part, and from the front of the connecting member to the lower front.
It is projected and has diagonally upward cam surfaces on both left and right sides.
That vertically movably mounted with respect to the fixed member includes a driven cam Yamagata, other parts except for the driven cam is vertically movably housed in said connecting member, attached to the upper by a first biasing member A movable body that is biased; and a latch head that is provided below the movable body so as to be able to move up and down and that is biased downward by a second biasing member so as to project downward from the lower surface of the movable body. (D) The actuating member is attached to the left and right doors of the folding door, and is movable on the movable body of the latch unit when the folding door is closed.
A slant that acts on the cam surface of the driven cam to move the movable body downward with respect to the first biasing member with respect to the fixed member.
It has a drive cam with a downwardly facing cam surface . With the above configuration, when the folding door is open, the movable body is moved upward by the first biasing member, so that the latch head is held at a position higher than the lower rail. On the other hand, the drive cam of the actuating member moves from the position immediately before the closing of the folding door to the closing end position of the movable member .
Since the driven cam is moved downward against the first biasing member, the latch head projects downward from the lower rail. under
When the latch head protruding in one direction comes into contact with the lower rail, the latch head is lifted up against the second biasing member, so that it can cross the lower rail. Exceeding the lower rail, the latch heads
De engages with the lower rail moves back to downward by the second biasing member to hold the folding door in a closed state.

The driven cam of the movable body of the latch unit projects from the front surface of the connecting member and is diagonally upward on both sides.
A beam plane formed in Yamagata, drive cam of the actuating member,
The slanting downward cam surface causes the driven cam when the folding door is closed.
To act by pressing the cam face the movable member to move downward against the first biasing member. Then, when the folding doors are closed, the actuating members of the left and right doors of the folding door follow the latch unit.
The movable body is pushed down by acting on the cam surfaces on both sides of the moving cam . Servant
Thus, the movable body is stably and surely moved downward.

The fixing member is preferably fixed by a screw penetrating a vertically elongated hole formed in the connecting member. With the above configuration,
The height of the latch unit can be adjusted.

It is desirable that the actuating member be attached to the vertical frame on the connecting portion side of the left and right doors of the folding door. With the above configuration, the actuating member can be attached to the vertical frame having high strength, and the vertical frame can be easily processed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an example of a folding door sash as seen from the dressing room side, FIG. 2 is a cross-sectional view of the folding door sash, FIG. 3 is an exploded perspective view showing the configuration of the main part of the folding door and the latch lock device, and FIG. FIG. 5 is an exploded view of a fixed member of a latch unit that is one component of the latch lock device, FIG. 5 is an exploded view of a movable body of the latch unit, FIG. 6 is an exploded view of an operating member, and FIG. FIG. 8A is a cross-sectional view of a main part, FIG. 8B is a front view of the main part, FIG. 8 is a vertical cross-sectional view of the main part showing an open state, and FIG. 9 is an explanatory view showing a folding door closed state. Yes, (a) is a cross-sectional view of the main part, (b) is a front view of the main part, and FIG. 10 is a vertical cross-sectional view of the main part showing the closed state.

In FIG. 1, F is a frame body of a well-known folding door sash fixed to the entrance of a bathroom, and the upper frame 1, the lower frame 2 and the left and right vertical frames 3, 4 are framed in a rectangular shape. D is a folding door built in the frame F, and left and right doors d1 and d
2 is connected by a connecting member 5 by being rotated around the connecting member so as to be foldable or expandable. Each door d1,
The d2 is symmetrically configured, and has upper and lower frames and left and right vertical frames 61, 71; 81, 91, 62, 72; 82, 9
2 is framed in a rectangle, and the glass plate and other panels are held inside. Also, the vertical frame on the hanging side of the folding door, that is,
Fixed hinges 101 and slide hinges 102 attached to the upper and lower ends of the vertical frames 81 and 82 located at both left and right ends are fitted into rails formed on the upper frame 1 and the lower frame 2, respectively.

One of the left and right hinges, for example, the left hinge 101 is not slidable laterally and is rotatable about a vertical axis, and the other hinge, for example, the right hinge 102 is rollable or slidable along a rail. By being free,
When the central portion of the folding door, that is, the connecting portion by the connecting member 5 is pushed (or pulled) toward the bathroom from the dressing room side, the hinge 1
02 moves along the rail in the direction of hinge 101, folding door D is folded and opened, and, on the contrary, after moving vertical frame 82 of the folding door in the four directions of vertical frame, the central portion of the folding door When you push (or pull) in the direction of the changing room, the hinge 102 moves along the rail in the direction of the vertical frame 4, and the folding doors are rotated around the vertical frames 81 and 82, and the folding door is opened. Deployed and closed.

A latch lock device for holding the closed state of the folding door is attached to the upper and lower ends or at least the lower end of the connecting portion of both doors d1 and d2 of the folding door D. The latch lock device CL attached to the upper end portion of the folding door has a conventional configuration, and the latch lock device N attached to the lower end portion.
L is according to the invention. The latch lock device NL will be described below.

The latch lock device NL according to the present invention, as shown in FIG. 3, is a latch unit L attached to a connecting member 5.
U and an actuating member AM attached to both the vertical frames 91 and 92 on the connecting member side of the doors d1 and d2.

The latch unit LU accommodates a fixed member 11 fixed to the connecting member 5 and a movable member 12 which accommodates the fixed member 11 so as to be able to move up and down relatively and is always biased upward with respect to the fixed member 11. And is provided on the movable body 12 so as to be able to move up and down,
The latch head 13 is always biased downward. In the preferred embodiment, the fixing member 11 has an adjustable mounting height with respect to the connecting member 5, so that the height of the latch unit can be adjusted. Hereinafter, each component will be described in detail.

The fixing member 11 is formed in a rod shape and has a protrusion 111 for locking a lower end portion of a first urging member 15, which will be described later, on its upper surface, and a lateral hole penetrating from one side surface to the other side surface of the upper portion. A nut 113 is fitted to 112. Then, a hole 114 is provided that penetrates from the upper part of the front surface of the fixing member to the screw hole of the nut 113. Further, a vertically elongated hole 115 for sliding is formed in the lower portion of the fixing member 11 so as to penetrate laterally.

The movable body 12 has a rod-shaped insertion portion 121 on the back side when viewed from the bathroom side, and the insertion portion 121 has an opening on the front surface for accommodating the fixed member 11 so as to be able to move up and down. A space 122 is formed. Space 12
A protrusion 123 for locking the upper end portion of the first biasing member is formed on the upper wall of the second wall (see FIG. 5). In addition, a block-shaped driven cam 125 protruding in the front direction is provided at the lower portion of the movable body 12. The driven cam 125 has tapered portions 125a and 125b formed at the upper portions on the left and right sides. In the example shown in the figure, both taper portions are separated from each other, but it is also possible to form a mountain-shaped taper in which the tops coincide with each other.

A latch head 13 is provided below the movable body 12.
A hole 126 that opens downward to fit the
(See FIG. 5). The projection 12 for locking the upper end portion of the second biasing member 16 described later on the ceiling surface of the hole 126.
7 is provided. Further, a vertically long hole 128 is formed in the lower portion of the movable body 12 so as to laterally penetrate the movable body 12 in the insertion portion 121 or the driven cam 125.

In the movable body 12, the insertion portion 121 is inserted into the connecting member 5 from the lower end portion of the connecting member 5, and the driven cam 1
25 is attached so that it can be raised and lowered while protruding from the front surface of the connecting member 5, the rear surface of the driven cam 125 and the insertion portion 12
A vertical groove 129 that is open on both sides is formed between the front surface and the front surface of 1.

The latch unit LU is the fixed member 1 described above.
1, the movable body 12 and the latch head 13 are assembled as follows and attached to the connecting member 5. That is, first, the nut 113 is fitted into the hole 112 of the fixing member 11. Next, the fixed member 11 is housed in the space 122 of the movable body 12,
By inserting the shaft 14 from one side of the hole 1210 formed in the intermediate portion of the insertion portion 121 of the movable body 12, penetrating the vertically elongated hole 115 of the fixing member, and further inserting and fixing the shaft 14 in the other side of the hole 1210, The fixed member 11 is held to be movable up and down with respect to the movable body 12. Then, the first biasing member 15 composed of a coil spring is mounted between the protrusion 111 of the fixed member 11 and the protrusion 123 of the movable body 12. Then, insert the latch head 13 into the lower space 126 of the movable body 12,
At that time, the second biasing member 16 formed of a coil spring is provided between the protrusion 131 of the latch head and the protrusion 127 of the movable body 12.
Put on. Then, the shaft 17 is inserted from one end side of the vertically elongated slide hole 128 formed on the lower side surface of the movable body 12, and the hole 13 of the latch head 13 inserted into the space 126.
2 and is inserted into the other end of the vertically elongated hole 128.
The shaft 17 is fixed to the hole 132 of the latch head 13 and holds the latch head 13 so as to be able to move up and down. Thus, the latch unit LU attachable to the connecting member 5 is configured.

A rectangular notch 51, which is slightly smaller than the front shape of the driven cam 125 of the movable body 12, is formed at the lower end of the inner surface of the bathroom of the connecting member 5, and a vertically long hole 52 is provided above the notch. Has been formed. Then, the insertion portion 1 of the movable body 12 that accommodates the fixing member 11 of the latch unit LU.
21 is inserted into the connecting member from the lower surface of the connecting member 5,
The edges on both sides of the cutout 51 are provided with vertical grooves 129 on both sides of the movable body 12.
And the holes 114 of the fixing member 11 are connected to the connecting member 5
When it comes to face the vertically long hole 52 in the lower part of the front of the washer, the tip of the setscrew 19 penetrating the hole 181 of the washer 18 is inserted into the vertically long hole 52, and further inserted into the hole 114 of the fixing member 11, so that the nut 113 By screwing into the fixing member 11
Is firmly fixed to the connecting member 5. At this time, the movable body 12
Is fixed in a predetermined position by being urged upward by the first urging member 15 and the lower end of the fixed member 11 is brought into contact with the bottom of the space 122 of the movable body 12. Therefore, in order that the height of the lower end surface of the latch head 13 at this time becomes an appropriate height with respect to the lower rail 2a of the folding door sash, the vertically elongated hole 5 is formed.
2, it can be adjusted by a set screw 19 and a washer 18.

The actuating member AM is another component of the latch lock apparatus of the present invention, abuts the lower end surface of the connecting member Gawatatekamachi 91, 92 of the door d1, d2 as shown in FIG. 3 and FIG. 6 Thus, as an example, the shaft portions 91a, 92a of the vertical frames 91, 92 are
It has a fixing portion 25 fixed by a screw 24 (see FIG. 6 (f)) screwed in and a drive cam 26 standing upright from the upper surface of the fixing portion and having a downward inclined surface. Fixed part 2
Reference numeral 5 has a ring portion 27 corresponding to the shaft portions 91a and 92a of the vertical frames 91 and 92, and the screw 24 penetrates through the ring portion,
It is adapted to be screwed into the shaft portions 91a and 92a. 28
Is a stopper integrally formed with the actuating member AM, and when the actuating member AM is attached to the vertical frames 91 and 92, when the folding door D is fully opened by projecting from the bathroom side face of the vertical frame (that is, (When folded) hits the wall inside the bathroom,
It prevents the vertical frames 91 and 92 from colliding with the inner wall surface of the bathroom. Reference numeral 29 in FIG. 6 is a fin for ensuring watertightness, and one end thereof is continuous with one end of a similar fin mounted on the lower frame of each door.

In order to mount the above-mentioned actuating member AM on the vertical frames 91, 92, the notches 9 are formed on the surfaces of the lower ends of the vertical frames facing each other.
b is formed. Then, with the drive cam 26 of the actuating member AM fitted and inserted in the notch 9b from below and protruding from the notch 9b in the other vertical frame direction, as described above, the fixing portion 25 is provided with the vertical frame 91. Abutting on the lower end surface of
The screw 24 penetrates the ring portion 27 and further the shaft portion 9 of the vertical frame.
It is attached by screwing into 1a and 92a.

Next, the operation of the above structure will be described. When the folding door D is open, as shown in FIGS. 7 and 8, the driven cam 125 of the movable body 12 of the latch unit LU is shown.
Does not receive the pressing force from the drive cam 26 of the actuating member AM, the movable body 12 is moved upward by the first biasing member 15 as shown in FIG.
Is held above a lower rail 2a provided on the lower frame 2. Further, the latch head 13 can be adjusted via the vertically long hole 52, the washer 18 and the screw 19 so as to be able to move upward by 3 mm at the maximum with respect to the lower end surface of the latch unit LU. Therefore, it is possible to cope with the hanging of the door due to long-term use.

Next, in the closed state of the folding door D, the drive cam 26 of the actuating member AM causes the latch unit LU to move immediately before the closing of the door.
The cam surfaces 125a, 12 of the driven cam 125 of the movable body 12 of FIG.
As it comes into contact with 5b and moves to the completely closed position, it is pressed downward against the first biasing member 15. for that reason,
Although the latch head 13 is moved below the lower rail 2a, since the latch head 13 is elastically urged downward by the second urging member 16, the latch head 13 is temporarily moved upward when contacting the lower rail 2a. Back to the latch head 13
Can easily cross the lower rail 2a, as shown in FIG. 9 (b).
Also, as shown in FIG. 10, when the folding door is moved to the completely closed position, the latch head 1 is moved by the second biasing member 16.
3 is urged downward again to project downward from the lower rail 2a and engage with it, so that the folding door is kept in the closed state.

When opening the closed folding door,
The latch head 13 that is moved toward the bathroom has the lower rail 2a.
The force received from moves the upper part against the second biasing member 16 to release the engagement with the lower rail 2a. Further, as shown in FIG. 7, the vertical frame 91 on the connecting member side of each door d1, d2,
92 is separated from the connecting member 5, and the drive cam 26 of the actuating member AM is moved to the cam surface 12 of the movable body 12 of the latch unit LU.
Since the movable body 12 is moved upward by the first biasing member 15 in order to release 5a and 125b, the latch head 13 that has passed over the lower rail 2a is then moved to the second biasing member 1.
Even if it is moved downward by 6 again, FIG.
It is maintained above the bathroom floor 30 as shown in FIG. Therefore, when the folding door is opened, the latch head 13 does not damage the bathroom floor 30 and the latch head itself is not damaged.

When the actuating members AM are provided on the left and right doors d1 and d2 as in the above-mentioned embodiment, the driven member when the folding door is closed is used.
Since the cam surfaces of the cam 125 receive the pressing force from the drive cams 26 of the actuating members AM, the movable body 12 moves stably and reliably downward. Therefore, deterioration or damage due to mechanical fatigue such as when a force is applied to only one side is prevented, and the load received from the movable body 12 is also distributed to the operating member AM, so that deterioration or damage is similarly prevented. Further, since the notches 9b having the same shape are only formed in the connecting material side frames 91 and 92 of both doors, the processing and the member management are easy.

However, the present invention can also be implemented in a form in which the actuating member AM is attached to either one of the left and right doors. Moreover, in any case, the same latch unit can be commonly used. Since the latch unit LU is attached to the connecting member 5, the operating member A
The coupling member 5 can be processed regardless of whether M is attached to one or both doors.
Therefore, the latch lock device can be easily attached. Further, as shown in FIG. 7B, most of the latch unit is housed in the connecting member 5, and the driven unit which is a part thereof.
Since only the frame 125, the washer 18 and the set screw 19 are exposed on the front surface of the connecting member 5, the appearance of the latch lock device is simple.

In the case of the above embodiment, when the movable member 12 is pushed down by the actuating member AM when the door is closed, the connecting member 5
A gap is formed between the upper edge of the notch 51 and the upper surface of the driven cam 125, which is not desirable in appearance and there is a possibility that an object may get into the gap. So, in the preferred embodiment,
As shown by the chain line in FIGS. 8 and 10, it is preferable to integrally provide a shield plate 1211 that extends upward at a position closer to the bathroom side than the connecting member 5 on the upper surface of the driven cam 125. As a result, the gap can be prevented.

As mentioned above, according to the present invention, the door is opened.
The movable body is opposed to the fixed member by the first biasing member while
Since it has been moved upwards, the latch head is
Is held higher than. Therefore, the rail and bathroom floor
Even if they are at almost the same height, the latch head will
You can open and close smoothly without touching the bathroom floor,
It may damage the pad or scratch the bathroom floor.
Absent. Also, most of the latch unit is stored in the connecting material.
Therefore, the appearance of the latch lock device is good.

[0032]

As described above, according to the invention of claim 1,
First of all, the front of the connecting material that pivotally connects the left and right doors of the folding door
With the folding door closed, expose it from between the vertical frames on the connecting material side.
Therefore, it is possible to attach the latch unit to the connecting material.
You can easily. Second, the latch unit of the latch lock device
Is a fixing member that is housed and fixed in a connecting member, and
The fixing member is housed in the housing, and the lower surface protrudes from the front of the connecting material.
Equipped with chevron driven cams with cam surfaces on both left and right sides
Attached to the fixed member so that it can be moved up and down, and the driven cam
Part of the dividing Kuhoka is vertically movably accommodated in the coupling member, the
1. A movable body that is urged upward by an urging member and its
The second urging member is provided at the lower part of the movable body and is movable up and down.
Is urged to project downward from the lower surface of the movable body.
Since it is composed of a latch head,
Only the driven cam of the latch unit is exposed on the surface.
The latch unit so that there is no foreign
Do not give elephants. Third, the operating member is attached to the left and right doors
When the door is closed, the covers on both sides of the driven cam of the latch unit
Stability when closing the left and right doors by applying equal force to the surface
Since it is highly reliable and the movable body is pressed down stably,
It is really moved down. Therefore, the mechanical failure of the latch device
Is reduced and the service life is extended.

According to the second aspect of the invention, the height of the latch head can be easily adjusted so as to properly act on the rail.

[Brief description of drawings]

FIG. 1 is a front view of an example of a folding door sash viewed from a dressing room side.

FIG. 2 is a cross-sectional view of the folding door sash.

FIG. 3 is an exploded perspective view showing a configuration of a latch lock device.

FIG. 4 is a development view of a fixing member that constitutes a latch unit.

FIG. 5 is a development view of a movable body that constitutes a latch unit.

FIG. 6 is a development view of an operating member.

FIG. 7 is an explanatory view showing a state where the folding door is opened.

FIG. 8 is a vertical cross-sectional view of the latch lock device with the folding door also opened.

FIG. 9 is an explanatory view showing a state in which the folding door is closed.

FIG. 10 is a vertical cross-sectional view of the latch lock device with the folding door closed.

[Explanation of symbols]

F Frame 2a Lower rail D Folding doors d1, d2 Folding doors 5 Doors 5 Connecting members for connecting the doors 51 Latch unit mounting notches 52 Vertically elongated holes 91, 92 Longitudinal frame on each door LU LU latch unit 11 Fixing member 12 Movable body 125 Driven cam 13 Latch head 15 First biasing member 16 Second biasing member AM actuating member 25 Fixed portion 26 Drive cam 30 Bathroom floor 31 Dressing room floor

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shunji Kano 53-14, Tokai Harihara, Kosugi-machi, Imizu-gun, Toyama Prefecture Miyoshi Kasei Co., Ltd. 7-1244 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05C 21/00 E05C 1/00 E05C 7/06

Claims (2)

(57) [Claims] 1. A folding door having the following constituent features. (A) Close the front of the connecting material that pivotally connects the left and right doors of the folding door
In the chain state, it is exposed from between the vertical frames on the connecting material side.
When. (B) folding from the below latch unit and later actuating member ing
The door latch lock device is installed. (C) The latch unit is attached to a connecting member that relatively rotatably connects the left and right doors of the folding door, and a fixing member that is housed and fixed in the connecting member,
The fixing member is housed in the upper part, and the connecting member
Cam protruding from the front and diagonally upward on both left and right sides
A mountain-shaped follower cam having a surface is attached to the fixing member so as to be able to move up and down, and other parts except the follower cam are housed in the connecting member so as to be able to move up and down, and are moved upward by the first biasing member. A movable body that is urged toward the movable body, and a latch head that is provided in a lower portion of the movable body so as to be able to move up and down and is urged downward by a second urging member so as to project downward from the lower surface of the movable body. It must consist of (D) The actuating member is attached to the left and right doors of the folding door, and acts on the cam surface of the driven cam of the movable body of the latch unit to close the movable body when the folding door is closed. A drive cam having an obliquely downward cam surface that moves downward with respect to the fixing member against the biasing member.
To do. 2. The folding door according to claim 1, wherein the fixing member is fixed by a screw penetrating a vertically elongated hole provided in the connecting member, whereby the height of the latch unit can be adjusted along the vertically elongated hole. Orido, which is characterized by