JPH076446Y2 - Door opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device in which a door that can be opened and closed by sliding can be opened and closed by swinging as needed, and the door does not come into contact with the floor surface when opened by swinging. The present invention relates to a door opening / closing device.

[0002]

2. Description of the Related Art There is known an automatic door which can be opened and closed by sliding as shown in FIGS. 2 and 3 and also by swinging. In this, the suspension frame 4 is suspended on the upper rail 2 in the seamless 1 via the pulley 3, and the door 5 is suspended on the suspension frame 4. Then, the left and right doors 5 are moved through the pulley 8 and the belt 7 by the normal rotation and the reverse rotation of the drive device 6.
As shown in (a), the sliding door 9 is automatically opened and closed along the sliding door 9.

Here, when carrying in a large baggage,
When a large frontage is required, such as when an abnormal situation such as a fire occurs, when the door 5 is pushed outward as shown in FIG. 3B, the door 5 engages with the suspension frame 4. The part 10 comes off, and the swing fulcrum part 11 swings as a fulcrum,
The door 5 is also pushed out by the door 5, and swings using the upper turning fulcrum portion 12 and the lower turning fulcrum portion 13 as fulcrums.
Even when the door 5 is swinging open, the door 5 slides to the positions of the pillars 14 on both sides to obtain a frontage twice as large as usual.

The door 5 that opens and closes by sliding and swinging in this way swings with the suspension frame 4 during swinging, and the swing fulcrum 1
1, that is, one end of the upper frame 15 of the door 5 supports the entire load of the door 5. Particularly, in the case where the door 5 is made of one glass plate and is held only by the upper frame 15 and the lower frame 17, and does not have the left and right standing frames, it is extremely possible to open and close by swinging while supporting the total load of the door 5. It is difficult, and when it is disengaged from the engaging portion 10, there is a problem that the door 5 tilts and the lower end portion (door tip) of the door 5 comes into contact with the floor surface and cannot be opened and closed smoothly.

In order to solve such a problem, conventionally,
An apparatus as shown in FIGS. 4 and 5 has already been proposed by the present applicant (Jitsuko 63-15500). This is because the door 5 is opened by a swing, and therefore when the door 5 is pushed out from the indoor side to the outdoor side, the engagement of the engaging portion 10 between the door 5 and the suspension frame 4 is disengaged, and the swing fulcrum portion 11 is swung. Open with. At this time, the sliding tip 22 is initially in contact with the concave portion 20 of the cam plate 19, but as the door 5 rotates, the sliding tip 22 moves to the convex portion 21, and the swivel shaft 18 centers on the thrust bearing 23. Then, the door is lifted by turning a little.

[0006]

The conventional device as described above has some problems as described below. (1) Since the swivel shaft 18 is loosely fitted in the gap 24 of the suspension frame 4, the door 5 may slightly fluctuate. (2) The thrust bearing 23 and other complicated structures are required to support the swivel shaft 18. (3)
For example, the sliding tip 22 and the cam plate 19 may be slid against each other to wear each other. An object of the present invention is to provide a simple and reliable device that prevents the door tip from lowering when the door is opened by swinging.

[0007]

According to the present invention, a door is provided on a movable hanging frame which is movable in a seamless manner, and the door is opened and closed by sliding along the door, and the door and the door are swivel fulcrum. In a door opening / closing device capable of being opened by swinging around a portion, the turning fulcrum portion has a vertical screw portion and a door support at the lower end of the screw portion, and the screw portion is The door support is fixed to the door by being screwed into a screw hole provided in the suspension frame.

[0008]

[Function] When the door is pushed outward, the engaging portion with the suspension frame is disengaged, and the door swings around the swing fulcrum as a fulcrum. The door also pushes the fitting door to push the upper swing fulcrum and the lower swing fulcrum. Swing using as a fulcrum. At this time, since the door rotates integrally with the threaded portion of the turning fulcrum, the threaded portion gradually rises along the screwed hole. Therefore, the door tip does not float up from the floor little by little and come into contact with it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. The same parts as those in FIG. 2 are designated by the same reference numerals. An upper rail 2 is provided inside the seamless 1 and a suspension frame 4 is provided on the upper rail 2 with pulleys 3 and 3 and a pulley holding plate 3.
It is suspended so that it can be slid through 0 and 30. Further, a door 5 is suspended from the suspension frame 4 by a turning fulcrum portion 11 at one end and an engaging portion 10 at the other end.

The swivel fulcrum portion 11 has a vertical thread portion 25.
And a door support 26 integrally provided at the lower end of the screw portion 25. The screw portion 25 is screwed into a screw hole 27 provided in the suspension frame 4, and when the door 5 is rotated in the swing opening direction, the screw portion 25 turns in the screw hole 27 and slightly moves. It is engraved in the direction of rising. Therefore, in the turning fulcrums 11, 11 of the left and right doors 5, 5, the screw directions of the screw parts 25, 25 are opposite to each other. The door support 26 is provided with a reinforcing member 29 provided in the upper frame 15 of the door 5,
It is fixed with a bolt 28. The method of fixing the door support 26 to the door 5 is not limited to the illustrated example.

In the above structure, the door 5 is suspended below the suspension frame 4 by the swing fulcrum portion 11 and the engaging portion 10 when the door is automatically opened and closed by a normal slide. Here, when a large frontage is required, the door 5 is pushed out from the indoor side to the outdoor side. Then, the door 5 swings around the turning fulcrum 11 as the fulcrum with the engaging portion 10 disengaged. As the door 5 swings open, the integrated screw portion 25 also rotates, so that the screw portion 25 moves up the screw hole 27 together with the door 5 little by little. Therefore, the door tip of the door 5 does not gradually come up and move away from the floor surface, so that there is no contact. The fitting door 9 is also pushed out by the door 5 and rotated by a swing around the turning fulcrums 12 and 13 as a fulcrum to open the door 5 and the fitting door 9 by 90 degrees, thereby forming a double frontage. After use by the frontage of 2 times, when the sliding door 9 and the door 5 are swung in the opposite directions and returned to the original state, the door 5 and the sliding door 9 return to the normal state. At this time,
The screw portion 25 descends in the screw hole 27 and the door 5 returns to its original height.

[0012]

As described above, according to the present invention, a door is provided on a movable hanging frame which is movable within the eyes, and the door is slid along the sliding door to be opened and closed. In a door opening / closing device capable of being opened by swinging around a portion, the turning fulcrum portion has a vertical screw portion and a door support at the lower end of the screw portion, and the screw portion is The door support is fixed to the door by being screwed into a screw hole provided in the suspension frame. Therefore, the door tip does not come into contact with the floor surface and rubs when the door is opened by swinging, and the turning fulcrum portion is formed of a screw portion and only screwed into the screw hole of the suspension frame. Therefore, it is extremely simple and operates reliably.

[Brief description of drawings]

FIG. 1 shows an embodiment of a door opening / closing device according to the present invention.
It is the front view which notched the part.

FIG. 2 is a front view of a door that opens and closes by sliding and swinging.

FIG. 3 is an explanatory diagram of an opening / closing operation by sliding and swinging in FIG.

FIG. 4 is a front view of a conventional device.

FIG. 5 is a side view of FIG.

[Explanation of reference numerals] 1 ... no eye, 2 ... upper rail, 3 ... pulley, 4 ... hanging frame, 5 ...
Door, 6 ... Drive device, 7 ... Belt, 8 ... Pulley, 9 ... Fitting door, 10 ... Engagement part, 11 ... Swiveling fulcrum part, 12 ... Upper swiveling fulcrum part, 13 ... Lower swiveling fulcrum part, 14 ... Pillar , 15 ... upper frame, 16 ... glass, 17 ... lower frame, 18 ... swivel axis, 19 ...
Cam plate, 20 ... concave portion, 21 ... convex portion, 22 ... sliding tip,
23 ... Thrust bearing, 24 ... Gap, 25 ... Screw part, 26
... Door support, 28 ... Bolt, 29 ... Reinforcing material, 30 ... Pulley holding plate.

Claims (1)

[Scope of utility model registration request] 1. A door is provided on a movable hanging frame which is movable within the eyes, the door is opened and closed by sliding along the door, and the door and the door are opened by swinging around a swing fulcrum. In the door opening and closing device that is capable of doing, the swivel fulcrum portion has a vertical screw portion and a door support at the lower end of the screw portion, and the screw portion is provided with a screw provided on the suspension frame. An opening / closing device for a door, characterized by being screwed into a hole and fixing the door support to the door.