JPH0640261U - Door open / close support structure - Google Patents

Abstract

(57) [Abstract] [Purpose] A rotary shaft is provided at a predetermined distance from the side edge of the door, and the lower end of the rotary shaft is provided at the tip of the horizontal piece of the L-shaped angle attached to the door frame. Provided is an opening / closing support structure for the door, in which the upper end of the rotating shaft is an opening / closing support structure provided on the upper crosspiece, and the horizontal piece of the L-shaped angle is not bent by the weight of the door to prevent the door from tilting. A screw 9 is screwed onto the tip of a horizontal piece 6 of the L-shaped angle 4, and the lower end of the screw 9 is brought into contact with a floor surface 7 to support a load acting from above the horizontal piece 6 and to bend To prevent.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door opening / closing support structure.

[0002]

[Prior art]

 Doors can be opened and closed by being attached to the doorway (frontage), but generally hinges are used. As is well known, the hinge has a structure in which the door frame and the door are connected to each other so that the door can be openably and closably supported. Most hinges are used to support opening and closing, but there is a problem when the door is automatically opened and closed using a motor. In other words, in this case, the hinge shaft must be rotated by a motor, but the moment of inertia of the door around the hinge shaft attached to the side edge of the door becomes extremely large, and As a result, the torque required for opening and closing also increases. Also, if the rotation axis is provided at the end of the door, there is a problem in space for mounting the motor and the like. Therefore, a door open / close support structure has been developed in which a rotating shaft is provided not at the side end of the door but at a predetermined distance from the side end and opening / closing is performed around this shaft.

FIG. 3 is a specific example showing this opening / closing support structure. An L-shaped angle (b) is attached to the lower end of the door frame (a) and an L-shaped angle (b) is attached to the door (c). Supported by the tip. A support piece (d) is screwed to the tip of the L-shaped angle (b), and a receiver (e) fixed to the lower end of the door (c) is rotatably fitted to the support piece (d). And the angle (f) is attached to the upper end of the door (c). ) Is fitted. Therefore, the door (c) can be opened and closed by the support structure formed at the upper and lower ends thereof, and the bearing (g) can be rotated by a motor (not shown). By providing the rotating shaft at a predetermined distance from the door side end as described above, the moment of inertia becomes small. The interlocking mechanism with the motor is configured to stop when it rotates a predetermined angle with a belt and a gear interposed. It is also possible to store the above-mentioned motor and the like by providing a pivot shaft at a point apart from the vertical rail of the door frame (a).

However, the weight of the door (c) supported by such a structure acts on the L-shaped angle (b), and the bending moment based on the weight causes the L-shaped angle (b) to bend, It becomes like FIG. As a result, the door (c) also tilts, which hinders the opening and closing operation of the door (c). Bearings are interposed between the sliding surface of the support piece (d) and the receiving (e) at the lower end of the door, and the sliding surface of the bearing (g) and the shaft (h) at the upper end of the door. The tilt imposes a heavy load on the bearing and damages the bearing.

[0005]

[Problems to be solved by the present invention]

 As described above, the door opening / closing support structure has the above problems. The problems to be solved by the present invention are these problems, and it is intended for a support structure that allows the door to be opened and closed by using the L-shaped angle described above, and the L-shaped angle does not bend due to the weight of the door. Provided is a door opening / closing support structure capable of performing a smooth opening / closing operation.

[0006]

[Means for Solving the Problems]

 The door opening / closing support structure of the present invention supports the door openably / closably by the L-shaped angle attached to the door frame, and has the same basic structure. The L-shaped angle has a vertical piece and a horizontal piece, the vertical piece is fixed to the door frame side, and the horizontal piece extends vertically from the vertical rail of the door frame and is parallel to the floor surface. A screw is screwed onto the tip of the horizontal piece to project downward, and the lower end of the screw is brought into contact with the floor surface to prevent the horizontal piece from bending. Regardless of the gap formed between the horizontal piece and the floor surface, the lower end of the screw contacts the floor surface and bears the load from above by adjusting the amount of protrusion of the screw. As a result, even if the weight of the door is large, the structure for attaching the L-shaped angle to the door frame is simple. Further, here, the pivotal support structure of the door provided between the horizontal piece and the lower end of the door and between the upper rail of the door frame and the upper end of the door is not limited. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0007]

Embodiment FIG. 1 is an embodiment showing a door opening / closing support structure according to the present invention. In the figure, 1 is a door frame, 2 is a door, and an L-shaped angle 4 is attached to a vertical rail 3 of the door frame 1. The L-shaped angle 4 is composed of a vertical piece 5 and a horizontal piece 6. The vertical piece 5 is screwed to a vertical bar, and the horizontal piece 6 extends in parallel with the floor surface 7, and between the floor surface 7. A gap 8 is left. A screw 9 is screwed onto the tip of the horizontal piece 6, and the lower end of the screw 9 is in contact with the floor surface 7. Therefore, the horizontal piece 6 is fixed by the load acting from above the horizontal piece 6. It is kept horizontal without bending.

The door 2 has its rotation axis provided at a predetermined distance L from the side end 10, and a receiver 11 is screwed to the lower end of the door 2, and the receiver 11 is screwed onto the horizontal piece 6 of the L-shaped angle 4. It rests on the suspended support piece 12. A bearing (not shown) is interposed on the sliding surface between the support piece 12 and the receiver 11 to assist the rotation of the receiver 11. On the other hand, an angle 13 is screwed to the upper end of the door 2, and a bearing 14 formed at the upper end of the angle 13 is fitted with a shaft 15 fixed to an upper rail 16 of the door frame 1. Of course, the sliding surface between the bearing 14 and the shaft 15 is also provided with a bearing to facilitate the rotation of the door 2. The weight of the door 2 is supported by the support piece 12, the upper shaft 15 functions to prevent the door 2 from collapsing, and the tip of the horizontal piece 6 is supported by the screw 9 so that the door 2 is supported. It does not sag due to its weight, and as a result, the tilt of the door 2 is also eliminated.

FIG. 2 shows a case in which two doors 2a and 2b are provided in the frontage, and a joint 17 is interposed between the doors 2a and 2b so as to be flexibly connected. One of the doors 2a is attached to the frontage in the support structure of FIG. 1, while the other door 2b is connected through a joint 17 and the upper end thereof is suspended by a slider 18. The slider 18 travels along a rail provided along the upper rail 16, and if the door 2a rotates about a rotation axis (XX), the door 2b moves and the position of the slider 18 moves. As they rotate, they bend and fold each other.

By the way, such a door 2 can be opened and closed by providing a handle on the front end side of the door 2 and pulling the handle toward the front to rotate it, but the bearing 14 is rotated by a motor. It can also be opened and closed by pressing. The present invention may be a manual opening or closing, or may be an opening and closing means using a motor. However, by providing the rotating shaft (XX) at a distance L from the door side end 10, the door 2 itself. As a result, the opening / closing operation of the door 2 is light, and if a motor is used, a small motor is sufficient. As described above, the door open / close support structure of the present invention supports the door by the L-shaped angle attached to the vertical frame of the door frame, and also the support portion is provided at the upper end of the door to pivotally support the door. At the same time, a screw is screwed onto the end of the horizontal piece of the L-shaped angle and the lower end is brought into contact with the floor surface, and the following effects can be obtained.

[0011]

[Effect of device]

 According to the present invention, since the pivot shaft of the door is provided at a predetermined distance from the side end, the moment of inertia of the door around the shaft is small and the opening / closing operation thereof is easy. Even in the case of automatic opening and closing, a small motor may be used, and the small motor can be stored in the upper rail. And the L-shaped angle that supports the door can prevent the horizontal piece from bending by screwing the tip of the L-shaped angle, and the door is not tilted, and the bearing interposed on the sliding surface of the rotating shaft should not be damaged. Without it, stable opening and closing can be performed over a long period of time.

[Brief description of drawings]

FIG. 1 is an embodiment showing a door opening / closing support structure of the present invention.

FIG. 2 is a view showing an embodiment of a door opening / closing support structure of the present invention, which is constructed by two doors.

FIG. 3 is a conventional door opening / closing support structure.

FIG. 4 is a conventional door opening / closing support structure in which the door is tilted due to bending of an L-shaped angle.

[Explanation of symbols]

 1 Door frame 2 Door 3 Vertical bar 4 L type angle 5 Vertical piece 6 Horizontal piece 7 Floor surface 8 Gap 9 Screw 10 Side end 11 Bearing 12 Supporting piece 13 Angle 14 Bearing 15 Shaft 16 Upper rail 17 Joint 18 Slider

Claims (1)

[Scope of utility model registration request] 1. A door which is provided with a rotary shaft at upper and lower ends of the door at a predetermined distance from a side end of the door and which opens and closes around the rotary shaft, and which is provided on a vertical rail of the door frame. An L-shaped angle is attached, and a horizontal piece thereof rotatably supports the lower end of the door, and an open / close support structure in which the upper end of the door is supported by a shaft portion provided on an upper beam. An open / close support structure for a door, characterized in that a screw is screwed onto the tip of one piece and the lower end of the screw is brought into contact with the floor surface.