JPS5856298Y2 - Oritatamitobiranorotsukusouchi - Google Patents

Description

[Detailed description of the invention] The present invention connects the left and right door panels 1.1 so that they can be folded and movable by pivoting the side ends of the door panels 1. The end of the shaft 2 can be moved vertically to project downward or upward from the door panel 1, and with the left and right door panels 1, 1 extended, the end of the movable shaft 2 can be inserted into the lock hole of the sill 3 or lintel 4. The object of the present invention is to provide a locking device for a folding door, which is configured to engageably face the folding door 5, and to provide a locking device for the folding door which can securely lock the door without reducing the number of parts.

The present invention will be explained in detail below with reference to the accompanying drawings.

The attached figure shows an example of a folding door made up of two door panels 1, 1, in which cylindrical ears are arranged alternately at one end of the door panels 1, 1 facing each other as shown in Fig. 4. 6,6...
..., and alternately fit the ears 6 of one door panel 1 and the ears 6 of the other door panel 1 to each ear 6.6...
... are joined into a single cylindrical shape, and these ear parts 6, 6...
A movable shaft 2, such as a steel wire, is inserted through the shaft so as to be vertically movable, and the door panels 1, 1 are rotatably connected to each other.

A 1L pilot hole 8 continuous to the locking step 7 as shown in FIG. 7 and the upper and lower holes 8 so as to be slidable freely.

In this device, the movable shaft 2 is not in a freely rotating state due to the insertion of the lever 9 into the upper and lower holes 8 and the locking step 7 with respect to the lug 6 of the right door panel 1 in FIG. , since the movable shaft 2 is in a state where it can freely rotate with respect to the lug 6 of the left door panel 1, the left and right door panels 1, 1
can be folded and rotated by the movable shaft 2.

The movable shaft 2 is prevented from being removed from the ear 6 by inserting a lever 9 into the upper and lower holes 8 and the locking step 7 of the ear 6. By moving it up and down, the movable shaft 2 can be moved up and down into the ear 6. When the lever 9 is lowered to the lower end of the upper and lower holes 8, the lower end of the movable shaft 2 is moved downward from the lower end opening of the lowermost ear 6. It should stick out.

Further, a lock hole 5 is provided on the upper surface of the sill 3 so as to be located directly under the movable shaft 2 when the door panels 1, 1 are closed, and the movable shaft 2 faces the lock hole 5 so as to be able to engage and disengage freely. are doing.

In addition, by changing the positions of the locking step 7 and the upper and lower holes 8, the movable shaft 2
If the lintel 4 is made to protrude above the upper end of the door panels 1, 1, a lock hole 5 may be formed in the lower surface of the lintel 4.

Furthermore, even if there are three or more door panels 1, each panel may be pivoted by movable shafts 2, 2, .

10 is an elastic body for sealing the contact surfaces of the door panels 1, 1.

In the present invention, the folding door formed by rotatably connecting the door panels 1 and 1 has one side of the door panel 1 at one end hinged to the horizontal casing 11, similar to well-known folding doors. 12
With the other door panel 1 in a free state, pivots etc. provided at the upper and lower ends of the end opposite to the lug 6 of this door panel 1 can be connected to the rail groove on the lower surface of the lintel 4 or the upper surface of the sill 3. It is fitted between the sill 3 and the lintel 4 so that it can run freely in the rail groove of the lintel, and when opening or closing, raise the movable shaft 2 upwards as shown in Figure 3 and move the lever 9 to the locking step. The lower end of the movable shaft 2 does not protrude downward from the lower end surface of the door panel 1 by being locked to the portion 7, and the door panels 1, 1 can be opened and closed by folding or extending. The lower end of the movable shaft 2 is fitted into the lock hole 5 by rotating it slightly and sliding down the upper and lower holes 8 to the lower end, thereby locking the door panel 1.1 so that it will not open.

In the present invention, as mentioned above, the movable shaft that connects the left and right door panels in a foldable manner is movable up and down and fixed, and the end of this movable shaft is arranged to face the lock hole of the sill or lintel so that it can be locked. This makes it possible to lock the closed state of the folding door with the movable shaft, so the movable shaft used to connect the door panels in a freely foldable manner can be used as is to lock the closed state of the folding door, and a separate lock can be used. There is no need to attach the device to the folding door, and the locking mechanism can be applied to the folding door at low cost using a small number of parts.Furthermore, since the movable shaft that performs the locking connects the left and right door panels, the locking of the folding door is easy. This can be done at the center of the left and right door panels, allowing the door panels on both sides to be locked evenly, ensuring that the locked state is maintained no matter which door panel on either side is subjected to opening force. It has the advantage of being able to

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a cross-sectional view of the same, Fig. 3 is an enlarged perspective view of the same with a portion omitted, and Fig. 4 is an exploded perspective view of the same. .1 is the door panel, 2 is the movable shaft, 3 is the sill, 4 is the lintel, and 5 is the lock hole.

Claims (1)

[Scope of utility model registration request] The side edges of the door panels are pivotally supported by a movable shaft that can be moved up and down and fixed, and the left and right door panels are foldably connected, and the end of the movable shaft can be moved up and down to project downward or upward from the door panel. A locking device for a folding door, in which the end of the movable shaft faces the lock hole of the sill or lintel in a state where the left and right door panels are extended.