JPH0625588Y2 - Folding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a folding door having a plurality of divided doors.

[Conventional technology]

2. Description of the Related Art Conventionally, as a folding door of this kind, there is known a folding door in which divided doors are connected by a hinge and which is generally operated by operating from one side of a free end side door.

[Problems to be solved by the device]

However, according to the above-mentioned conventional example, (a) since the divided doors are connected by a hinge, opening and closing of the door is performed from one side (one side) of the indoor side or the outdoor side of the free end side door. I could only operate it.

(B) Since the door on the free end side for opening / closing is hinged, it swings during opening / closing operation and it is difficult to apply sufficient tension.As a result, there is a lock for locking on the door end on the free end side. There was a problem that it could not be installed. In this case, in the above-mentioned conventional example, the fixed-side (suspension-side) door is lifted up and down so that it can be freely engaged and disengaged to prevent the door from swinging, and a lock such as a cylinder lock is attached to the fixed-side door. The actual situation is that it is attached and unlocked.

Further, (c) in the conventional example, since the doors are hingedly connected to each other, it is not possible to arbitrarily expand or contract the gap between the hinged doors, and therefore from the gap. I could hardly take in or ventilate the wind or sunlight.

This invention intends to provide a device in which all the problems of the conventional example are solved by a simple structure in which each divided door is provided with a link mechanism.

[Means for Solving the Problems]

As a means for achieving the above object, the present invention is a folding door having a plurality of doors, in which a link mechanism is provided at an appropriate position of each door.

The link mechanism can be operated from both inside and outside the door on the free end side (door tip side) to fold or open the door,
Its shape and structure are arbitrary.

For example, a first link in which one end is connected to a suspension side (fixed side) with a fixed pivot and the other end is connected to a frame or rail with a movable pivot, and one end is fixed to each door and the other end is fixed with a pivot or frame or rail. And a second link connected to each other by a movable pivot, and a link mechanism configured such that a line connecting the fixed pivot and the movable pivot of the first link and a line connecting the fixed pivot and the movable pivot of the second link are parallel to each other. Good.

Alternatively, a first link having one end connected to the door on the suspension side (fixed side) by a fixed pivot and the other end connected to the frame (rail) by a movable pivot, and the doors are connected by a fixed pivot, and The second link, in which the line connecting the fixed pivot and the fixed pivot of the first link and the movable pivot is parallel, and one end of the fixed door are connected by the fixed pivot, and the other end is connected to the frame (rail). ), Which is connected by a moving pivot, to the second link, and a guide hole is formed in the third link and the door on the free end side, and a guide pin is inserted into the guide hole to be movable. But it's okay.

The link mechanism, that is, at least one or more moving pivots of the first, second and third links is positioned on the frame (rail) so that it can be positioned at an arbitrary position on the frame or rail of the door, as shown in FIG. 13, for example. A click mechanism should be provided.

[Action]

Since a link mechanism is provided at an appropriate location of each door of the present invention, the door end on the free end side can be rotated to open and close both inside and outside the door. Further, since the doors are constantly tensioned by the link mechanism, it is possible to prevent the doors from swinging, so that a lock for locking can be attached to the free end side door. Further, the gap between the doors can be arbitrarily expanded or contracted to perform ventilation or the like from a desired space.

When the link mechanism is composed of the first link and the second link as set forth in claim (2), as shown in FIG. 2, when the door is opened and closed, both moving pivots (O) of the first link and the second link are opened. ₁ ),
(O ₂ ) moves on the frame (rail) side. At this time, when a force in the opening direction is applied to the tip of the free end side door (B) when the door is opened, the movement pivot axes (O ₁ ) and (O ₂ ) of the first and second links are moved to two points. Since force is applied, the free end side door (B) can be opened stably without rocking, and the moving pivot (O ₂ ) of the second link
Is applied to the fixed side (suspension side) via the fixed pivot (P ₃ ).
The fixed side door (A) is hooked on the fixed pivot (P ₂ ) of the door (A), so that the fixed side door (A) is coupled with the opening force of the first link (2) to the fixed pivot (P ₁ ) to the free end side. Like the door (B), it can be opened stably without rocking.

Further, when a force is applied in the closing direction opposite to the above at the time of closing the door, the free end side door (B) moves in the same manner as above due to the action of the moving pivots (O ₁ ) and (O ₂ ). It is closed stably without rocking, and the fixed side door (A) has a fixed pivot (P ₁ ), (P
By the action of ₂ ), it can be stably closed without swinging like the free end side door (B).

When the link mechanism is composed of the first link, the second link and the third link as set forth in claim (3), the first link and the third link are opened and closed when the door is opened and closed, as shown in FIG. Axis (O ₁ ) and (O ₃ ) move on the frame (rail) side. At this time, when a force in the opening direction is applied to the tip of the free end side door (B) when the door is opened, the movement axis (O ₁ ) of the first and third links
Since the force is applied to the two points of ( ₃ ) and (O ₃ ), the free end side door (B) can be opened stably without swinging, and the force applied to the moving pivot (O ₃ ) of the 3rd link is guided. Since the fixed pivot (P ₂ ) of the fixed side door (A) is hooked via the pin (t), the door (A) is the first
Together with the door opening force of the link to the fixed pivot (P ₁ ), the link can be stably opened without swinging like the free end side door (B). Further, when a force is applied in the closing direction opposite to the above at the time of closing the door, the free end side door (B) moves the pivot axis (O ₁ ),
(O ₃ ), guide pin (t), etc.
By the action of the fixed pivots (P ₁ ) and (P ₂ ), (A) can be stably closed without rocking in the same manner as described above.

On the frame (rail), as described in claim (4), at least one or more moving pivots (O ₁ ), (O ₂ ), (O ₃ ) of the first link, the second link and the third link. By providing a click mechanism that positions the door at an arbitrary position, the opening angle of each door can be arbitrarily selected.

[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

As shown in FIG. 7, the folding door of the present invention has a plurality of divided doors (two in this embodiment) for opening and closing an opening formed between door frames or rails (X). One of the doors has a fixed side (suspension side) that is pivotally attached to the base end of the door frame or rail (X) by a fixed pivot (O).
The door (A) and the other door are free end side doors (B) connected to the fixed side door (A) so as to be foldable and rotatable from the front end of the door frame or rail (X).

A link mechanism (1) is provided at an appropriate location (upper end side in this embodiment) of the fixed side door (A) and the free end side door (B), and each door (A) is provided by this link mechanism (1). , (B) is always tensioned, and it can be operated from either the indoor side or the outdoor side of the free end side door (B) to open or close each door (A), (B). I am doing it.

The link mechanism (1) can be designed in various ways, but in this embodiment, it comprises a first link (2) and a second link (3), and one end of the first link (2) is fixed to the fixed side. The other end is connected to the door (A) by the fixed pivot (P ₁ ) and the moving pivot (O ₁ ) to the frame or rail (X) side, while the second link (3) has one end on each door.
Fixed to (A), (B) ... With pivots (P ₂ ), (P ₃ ) ...
The movable pivots (O ₂ ) are connected to the (X) side, and the fixed pivot (P ₁ ) of the first link (2), the movable pivot (O ₁ ) and the fixed pivot of the second link (3) ( The lines connecting P ₂ ), (P ₃ ) and the movement axis (O ₂ ) are parallel to each other. The moving axis (O ₁ ) is connected to the first link as described above.
Not only is it the pivotal support of (2), but it is also the fixed part of the free end side door (B).

The operation of this embodiment will be described with reference to FIG. 2. When the fixed side door (A) and the free end side door (B) are in the closed state (see FIG. 3) as shown by the solid line, Both the link (2) and the second link (3) are in the state of (a) shown by the solid line. If the free end side door (B) is pushed from inside or outside in this state (a), the first link (2) and the second link (3) will be in the state (b) and the free end side door ( B) and the fixed side door (A) are opened slightly as indicated by the one-dot chain line (b), and the gap between the free end side door (B) and the fixed side door (A) ((4) in Fig. 4) Ventilation can be done from here (see Fig. 4). When the free end side door (B) is pushed further, the first link (2) and the second link
(3) means the state of (c), the free end side door (B) and the fixed side door
As shown in (c), (A) allows a person to pass through between the free-end side door (B) and the facing frame, and allows ventilation and the like through the gap (4) between the two doors (fifth). See figure). Free end door
When (B) is pressed, the first link (2) and the second link (3) are in the state of (d), and the free end side door (B) and the fixed side door (A) are completely as shown in (d). The door is in the open state (see Fig. 6), and in this case as well, a person can pass through as described above, but ventilation is not expected because there is almost no gap (4). To close the door from this open state, the procedure may be reversed.

The opening angle of the free end side door (B) can be arbitrarily selected, and positioning of the open state can be performed by using a click mechanism (10) shown in FIG. 13 described later.

[Second Embodiment] FIGS. 8 to 12 show a second embodiment.

This one is characterized in that the link mechanism (1) is composed of a first link (2), a second link (3) and a third link (5).
That is, one end of the first link (2) is connected to the fixed side door (A) by the fixed pivot (P ₁ ) and the other end is connected to the frame (rail) (X) side by the movable pivot (O ₁ ). , The second link (3) is for each door (A), (B) ...
Fixed pivot between each other (P _2), a fixed pivot of the (P ₃₎ ... while connection with, the fixed pivot (P _2), (P ₃₎ ... and the first link (2)
The line connecting (P ₁ ) and the movable pivot (O ₁ ) is parallel to each other, and the third link (5) has one end of the fixed door (A) fixed to the fixed pivot.
(P ₂ ), the other end is connected to the frame (rail) (X) side by the pivot (O ₃ ), and the third link (5) and the free end side door (B) are connected. The guide holes (6) and (7) are formed, and guide pins (t) are inserted into the guide holes (6) and (7) to be movable. The other structure is similar to that of the above embodiment.

Explaining the operation of this embodiment with reference to FIG. 9, the doors (A) and (B) are opened and closed as in the case of the above embodiment, but the function of the second link (3) in the above embodiment To the third link (5)
And the guide pin (t) moves along with the movement of the third link (5) so that the third link (5) and the free end side door
The difference is that the guide holes (6) and (7) in (B) are moved.

That is, in FIG. 9, the door is in the closed state when the first link (2), the second link (3) and the third link (5) are in the state (a). When the door (B) is pushed sequentially to the open state, the 1st link (2), 2nd link (3) and 3rd link (5) will be in the state of (b) and fixed to the free end side door (B). The side door (A) is (b), that is, it is opened as shown in the tenth figure, and then the first, second and third links (2), (3) and (5) are in the state of (c). Then, the doors (A) and (B) are opened as shown in (c), that is, the eleventh illustration, and the first, second and third links (2), (3) and (5) are (d).
In this state, the doors (A) and (B) are in (d), that is, the doors are completely opened as shown in FIG. To close the door from this open state, the operation reverse to the above may be performed.

Although the opening angle of the free end side door (B) can be arbitrarily set, it is preferable to use the click mechanism (10) shown in FIG. 13 to be described later for positioning in the open state.

[Modification]

The click mechanism (10) used in each of the above embodiments has at least one of the first link (2), the second link (3) and the third link (5).
One or more mobile pivot _{(O 1), (O 2} ), as (O ₃₎ is positioned at an arbitrary position, the movable pivot _{(O 1), (O 2} ), opposing (O ₃₎ frame Alternatively, it may be installed on the rail (X). Its click mechanism (1
Although various concrete configurations of (0) can be adopted, in each of the above-mentioned embodiments, a rail (X) made of an elastic material is attached to the upper end of the frame,
As shown in FIG. 13, the shape of this rail (X) is formed with a corrugated rail groove (11) on both sides when viewed from the bottom, and this rail groove (11) is formed with a large diameter portion (12) in the longitudinal direction. ) And the small diameter portion (13) are alternately repeated, and the first link (2) and the second link
(3), the moving pivots (O ₁ ), (O ₂ ), (O ₃ ) of the third link (5) are inserted into the rail groove (11) of the rail (X) to allow traveling, (O ₁ ), (O ₂ ), and (O ₃ ) spread the small diameter portion (13) outwards against the elasticity and travel, and at the same time, the large diameter portion (12)
Then, due to the restoring force of the small diameter portion (13), the moving axis (O ₁ ), (O ₂ ),
(O ₃ ) is inserted and positioned. Needless to say, the click mechanism (10) is not limited to the structure described above.

Further, the link mechanism (1) is, as shown in FIG. 4 to FIG. 6 and FIG. 10 to FIG. 12 in both the embodiments, the upper end of the fixed side door (A) and the free end side door (B). Part, and the upper rail (frame) (X), but it is attached to the lower ends of the fixed side door (A) and the free end side door (B) and the lower rail (frame) (X). However, the mounting position is arbitrary.

Further, the link mechanism (1) is not limited to the structure shown in each of the above-mentioned embodiments, and the design can be changed appropriately.

Further, although one free end side door (B) is provided in both of the above embodiments, two or more doors can be attached.

[Effect of device]

According to this invention, since the link mechanism is provided at an appropriate position of each door constituting the folding door, the free end side door tip is rotated and can be opened and closed both inside and outside the door. Further, since the doors are constantly tensioned by the link mechanism, it is possible to prevent the doors from swinging, so that a lock for locking can be attached to the free end side door. further,
The gap between the doors can be arbitrarily expanded or contracted to perform ventilation or the like from a desired space.

The link mechanism is composed of a first link and a second link as set forth in claim (2), or a first link, a second link and a third link as set forth in claim (3). If constituted, each door can be stably opened and closed without rocking.

When the rail (frame) is provided with a click mechanism in which at least one or more moving pivots of the first link, the second link, and the third link are positioned at arbitrary positions as described in claim (4), The opening angle of the door can be arbitrarily selected.

[Brief description of drawings]

Each of the figures shows an embodiment of this invention. FIG. 1 is a longitudinal sectional view of a main part of the first embodiment in a closed state,
FIG. 2 is a locus diagram of the link mechanism as viewed from above in FIG. 1, FIG. 3 is a perspective view in a closed state, FIGS. 4 and 5 are perspective views in a partially opened state, and FIG. FIG. 7 is a plan view of a use example, FIG. 8 is a longitudinal sectional view of a main part of the second embodiment in a closed state, and FIG. 9 is a link of FIG. 8 seen from a plane. A locus diagram of the mechanism, FIGS. 10 and 11 are perspective views in a partially opened state, FIG. 12 is a perspective view in a completely opened state, and FIG. 13 is a portion showing an example of a rail or a frame. It is a bottom view. (A)… Fixed side door, (B)… Free end side door, (X)… Frame (rail), (O ₁ ), (O ₂ ), (O ₃ )… Movement axis, (O), (P ₁ ), (P ₂ ), (P ₃ )
… Fixed axis, (t)… Guide pin, (1)… Link mechanism, (2)
… 1st link, (3)… 2nd link, (5)… 3rd link,
(6), (7) ... Guide hole, (10) ... Click mechanism.

Claims (4)

[Scope of utility model registration request] 1. A folding door having a plurality of doors, wherein a link mechanism (1) is provided at an appropriate location of each of the doors (A), (B) .... 2. The link mechanism (1) has a fixed side door (A) at one end.
Fixed to Axis (P ₁ ) Move the other end to frame (rail) (X) side Axis
First link (2) connected by (O ₁ ), one end side fixed to each door (A), (B) ... Pivot axis (P ₂ ), (P ₃ ) ... the other end frame (rail) It is composed of a second link (3) connected to the (X) side by a moving pivot (O ₂ ), respectively, and has a fixed pivot (P ₁ ) and a moving pivot (O ₁ ) of the first link (2), and a second pivot (O ₁ ). The folding door according to claim (1), wherein the lines connecting the fixed pivots (P ₂ ) and (P ₃ ) of the link (3) and the movable pivots (O ₂ ) are parallel to each other. 3. The link mechanism (1) has a fixed side door (A) at one end.
Fixed to Axis (P ₁ ) Move the other end to frame (rail) (X) side Axis
The first link (2) connected by (O ₁ ) and each door (A), (B)
… The _two are connected by fixed pivots (P ₂ ), (P ₃ )…
This fixed pivot (P ₂ ), (P ₃ ) ... and the fixed pivot (P 2) of the first link (2)
₁ ) and the movable pivot (O ₁ ) are parallel to each other, the second link (3) is connected to one end of the fixed door (A) by the fixed pivot (P ₂ ) and It consists of a third link (5) whose end side is connected to the frame (rail) (X) side by a moving pivot (O ₃ ), and a guide hole is provided in the third link (5) and the free end side door (B). The folding door according to claim (1), wherein (6) and (7) are formed, and guide pins (t) are inserted into the guide holes (6) and (7) so as to be movable. 4. The first link (2) is provided on the frame (rail) (X).
And a click mechanism (10) for positioning at least one or more moving pivots (O ₁ ), (O ₂ ), (O ₃ ) of the second link (3) and the third link (5) Claim (2) or claim
Folding door described in (3).