JP2001182425A - Semiautomatic overhang door device and initial opening force assisting device of this overhang door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an overhang door device push-openable and quietly closable by relatively small force even when an overhang door is heavy in a semiautomatic overhang door device being suspended by a slightly inclined upper rail and capable of automatically closing a push-opened overhang door. SOLUTION: This overhang door device is provided with a fluid friction brake device 12 and an initial opening force assisting device 11, and when closing an overhang door 6, a pinion 5 of the fluid friction brake device 12 meshes with a rack 9 so that a brake acts, and when opening the overhang door, energy stored in a spiral spring 2 of the initial opening force assisting device 11 is discharged as resiliency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to a semi-automatic suspension door, and a suspension door device provided with an initial opening force assisting device so that the suspension door can be pushed open with a relatively light force when opening. It is about.

[0002]

2. Description of the Related Art A semi-automatic hanging door is a hanging door which functions to automatically close a hanging door that has been pushed open by hand, and this semi-automatic hanging door device includes an upper rail for hanging the hanging door. Are often inclined in advance and closed using the own weight of the hanging door. FIG. 5 shows a specific example of a conventional general semi-automatic hanging door device.
At the upper end of (a), a suspension wheel (b) and (b) are attached, and the suspension wheel (b),
The suspension door (a) can be opened and closed by the (b) traveling on the upper rail (c).

[0003] The upper rail (c) is slightly inclined as shown in the figure, and the hanging door (a) that is pushed open is closed by itself. Equipped with a brake device (e) so that there is no. This brake device (e) consists of a pinion (g) and a rack (h), and is mounted on the shaft end of a case containing a viscous fluid.
(G) engages with the rack (h) mounted parallel to the upper part of the upper rail (c), so that the suspension door (a) is braked and can be closed quietly.

By the way, such a semi-automatic hanging door (a) can be opened and closed along an inclined upper rail, but the size (generally, width) of the hanging door (a) is large. As it becomes heavier, the opening force at the time of opening increases. For example, if the width is 9
In the case of a hanging door of 00 to 1350 mm, if a steel plate is bonded to the surface, the initial opening force is 0.8 to 1.5.
kgf, 0.3 ~ 0.5kgf after starting to move
And become lighter. On the other hand, in the case of a suspension door using a wooden board as the surface board, the initial opening force is 0.4 to 0.7 kgf, and becomes 0.1 to 0.3 kgf after starting to move. When the width of the hanging door is further increased and heavier, the opening force is further increased, and an elderly person or a child who has weak power feels that the opening operation of the semi-automatic hanging door is heavy.

[0005] In order to reduce the initial opening force of the semi-automatic suspension door, the applicant has proposed a suspension door equipped with a linear motor in 1998.
Patent application filed on June 29 (Japanese Patent Application No. 10-199607)
No.), the patent was granted on August 25, 1999. This semi-automatic hanging door device is a semi-automatic hanging door device that can be closed by itself by its own weight, and that the hanging door that is hung on the slightly inclined upper rail can be closed by itself, reducing the initial opening force of the hanging door. A switch that activates the linear motor when the door is slightly opened in order to use a propulsive force that acts in the direction to open the door for a predetermined distance from a fully closed state or a state close to being completely closed. It has. "

[0006]

Providing a linear motor in a semi-automatic suspension door device makes it possible to push open the suspension door with a relatively small force, which is effective. However, since the linear motor requires a power supply, it does not operate at the time of a power failure, and there are still problems such as difficulty in adjusting the propulsion force. The problems to be solved by the present invention are these problems, and a semi-automatic hanging door device provided with an initial opening force assisting device that can operate stably without requiring a power supply is provided.

[0007]

SUMMARY OF THE INVENTION The initial opening force assisting device of the present invention utilizes a mainspring. The mainspring is wound to store energy when the hanging door is closed, and the energy is released when the hanging door is opened. It is configured so that the opening force can be assisted. A pinion is provided on the winding shaft of the mainspring, and when the hanging door is closed, the pinion engages with the rack and rotates, whereby the mainspring is wound around the shaft. As described above, the initial opening force assisting device includes the mainspring, a shaft around which the mainspring is wound, a pinion attached to the shaft, and includes a rack in which the pinion is engaged.

The above-mentioned initial opening force assisting device and a rack are attached to the suspension door and the upper rail side, and at the same time, a fluid friction brake device is provided. The fluid friction brake device includes a stirring blade that rotates in a container filled with a viscous fluid such as silicon oil, and a shaft of the stirring blade extends outside the container and a pinion is attached. The pinion has a rack that meshes with the pinion. Here, the mounting positions of the pinion and the rack of the initial opening force assisting device and the fluid friction brake device are not particularly limited. The rack is provided on the upper rail side, the pinion is attached to the hanging door side, and the rack is hung on the contrary. The pinion can be the upper rail side at the door side.

When the suspension door is closed along the inclined upper rail, the pinion and the rack of the initial opening force assisting device and the fluid friction brake device engage with each other, and the spring force of the initial spring assisting device of the initial opening force assisting device (return force) immediately before closing. If the torque increases, the fluid friction brake device becomes unnecessary, so
The pinion is set off the rack. The repulsion force of the spring can be adjusted by the length of the rack and the spring force, and one of the fluid friction brake devices is capable of adjusting its frictional resistance. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0010]

1 shows a specific example of an initial opening force assisting device, wherein FIG. 1 (a) is a side view including a partial cross section, and FIG.
-A sectional view, (c) shows a front view. A mainspring 2 is housed in the case 1, the inner end is fixed to the shaft 3, and the outer end is fixed to the inner periphery of the case. The shaft 3 is provided at the center of the case 1 and protrudes from the surface, and a pinion 5 is attached to a tip of the shaft. Then, if the pinion 5 rotates, the spring 2 is wound around the shaft 3 and elastic energy is stored.
(Repulsive force) occurs.

FIG. 2 shows a hanging door device provided with the initial opening force assisting device. Suspended wheels 7, 7 are attached to the upper end of the suspended door 6, and the suspended wheels 7, 7 can move on the upper rail 8. The upper rail 8 is slightly inclined, so that
The hanging door 6 pushed and opened by hand can be closed independently by the action of its own weight. Reference numeral 9 in FIG.
The pinion 5 of the initial opening force assisting device 11 shown in FIG. 1 is engaged with the rack 9.

[0012] The initial opening force reinforcing device 11 is a hoist 13 of the hoisting vehicle 7.
The pinion 5 is engaged with the rack 9. Therefore, if the suspension door 6 moves, the mainspring 2 winds around the shaft 3 or reverses. If the suspension door 6 closes, the mainspring 2 winds around the shaft 3 and the suspension door 6 When opened, it is rewound.

That is, when the suspension door 6 is closed, the rack 9 starts to engage from the right side of the rack 9 shown in FIG.
Is wound around the shaft 3 and moves to the left end of the rack 9 to increase the number of windings of the mainspring 2 and large elastic energy is accumulated in the mainspring. When the pinion 5 of the initial opening force assisting device 11 meshes with the rack 9, the closing speed of the hanging door 6 is high, and the winding of the mainspring 2 functions as a brake to convert the kinetic energy of the hanging door 6 into elastic energy. In particular, the heavy suspension door 6 does not have a sufficient braking effect.

Therefore, the suspension door 6 of the present invention is provided with a fluid friction brake device 12. The pinion provided on the shaft of the fluid friction brake device 12 can mesh with the same rack 9. That is, when the suspension door 6 is closed, first, the pinion of the fluid friction brake device 12 is engaged with the rack 9, so that the closing speed of the suspension door 6 is reduced. The pinion 5 of the initial opening force assisting device 11 is engaged with the rack 9 when the rack 9 is moved while being engaged to some extent.

In the fully closed state in which the speed of the suspension door 6 is moderately reduced, the pinion of the fluid friction brake device 12 is disengaged from the rack 9 and the pinion 5 of the initial opening force assist device 11 is released.
Only move while engaging with the rack 9. Therefore, the hanging door 6 can be closed in contact with the front door without impact. In this case, the mainspring 2 is wound around the shaft 3 greatly, and a rebound force is generated to rewind the
It is accumulated as a force to push 6 open.

Therefore, when the hanging door 6 is opened, the energy stored in the mainspring 2 is released to assist the opening force. In this case, the pinion of the fluid friction brake device 12 rotates while meshing with the rack 9, but there is no resistance to rotation because of the one-way clutch type.

FIG. 3 shows another embodiment of the suspension door device according to the present invention. Of course, the basic structure is the same as that of the previous embodiment, but the initial opening force assisting device 11 is
And one of the fluid friction brake devices 12 is attached to a hanging member 13 of a door-side hanging vehicle. Thus, the racks in which the pinions of each device engage are mounted at separate locations.

FIG. 1 shows the case where the suspension door 6 is closed, but the pinion of the fluid friction brake device 12 is detached from the rack 14. However, the pinion of one of the initial opening force assisting devices 11 remains engaged with the rack 15. It is necessary to separately provide the racks 14 and 15 by attaching the two devices to separate hanging members 13 and 13. However, the lengths and positions of the racks 14, 15 can be adapted to the function of each device.

FIG. 4 shows a longitudinal section of the initial opening force assisting device 11 in FIG. The suspension door 6 is suspended from the upper rail 8 via the suspension vehicle 7, and the initial opening force assisting device 1 attached to the suspension 13.
The first pinion 5 meshes with the rack 9.

As described above, the semi-automatic suspension door device of the present invention includes the fluid friction brake device so that the suspension door closes quietly, and the device for assisting the opening force when opening the suspension door. Therefore, the following effects can be obtained.

[0021]

The hanging door device of the present invention has an initial opening force assisting device, so that even a large and heavy hanging door can be opened with relatively light force, which is convenient for children and the elderly. . For example, a hanging door having an effective opening width of 1200 to 1300 mm and an initial opening force of 1.0 to 1.5 kgf,
By providing the initial opening force assisting device of the present invention, the opening force can be reduced to 0.
It becomes 5-0.8 kgf.

This initial opening force assisting device is a device using a spring, does not require a power source, and can be easily adjusted according to the size and weight of the hanging door.
A stable auxiliary opening force can always be obtained.

[Brief description of the drawings]

FIG. 1 is an embodiment showing an initial opening force assisting device.

FIG. 2 shows an embodiment of a semi-automatic hanging door device according to the present invention.

FIG. 3 is an embodiment of a semi-automatic hanging door device according to the present invention.

FIG. 4 is a longitudinal sectional view of a semi-automatic hanging door device.

FIG. 5 is a conventional semi-automatic hanging door device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Mainspring 3 Axis 4 Front 5 Pinion 6 Hanging door 7 Hanging car 8 Upper rail 9 Rack 10 Rail stand 11 Initial opening force assisting device 12 Fluid friction brake device 13 Hanging tool 14 Rack 15 Rack

Claims (4)

[Claims] 1. A semi-automatic suspension device which is suspended on a slightly inclined upper rail, and which can be closed by itself when it is pushed and opened, comprising a fluid friction brake device, an initial opening force assisting device, and an auxiliary device for these devices. A rack in which a pinion provided on the shaft meshes is attached to each of the suspension door side and the upper rail side, and the fluid friction brake device utilizes resistance generated when a viscous fluid such as silicon oil is stirred. ,
A semi-automatic suspension door device characterized in that the initial opening force assisting device is formed by winding a mainspring around a shaft. 2. A semi-automatic suspension door device which is suspended on a slightly inclined upper rail and which can be closed by itself. A rack in which a pinion provided on the shaft meshes is attached to each of the suspension door side and the upper rail side, and the fluid friction brake device utilizes resistance generated when a viscous fluid such as silicon oil is stirred. ,
Further, the initial opening force assisting device is constituted by winding a mainspring around a shaft, and a pinion of the fluid friction brake device is provided at a position where the pinion of the fluid friction brake device comes off from the rack when the hanging door approaches a completely closed state. . 3. The semi-automatic suspension door device according to claim 1, wherein a pinion of the fluid friction brake device and a pinion of the initial opening force assist device engage with the same rack. 4. A semi-automatic suspension door device which is suspended on a slightly inclined upper rail and which can be closed by itself when the door is pushed and opened, wherein the suspension door is opened when the suspension door in a completely closed state is pushed and opened. In a device for assisting force, a spring is housed in a case, an inner end is fixed to a shaft and an outer end is fixed to a case, and a pinion is attached by projecting the shaft from the case. Is an initial opening force assisting device for a semi-automatic suspension door, characterized in that it rotates while meshing with a rack as the suspension door opens and closes, and winds and rewinds the mainspring around a shaft.