JPH028114B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic sliding door device with a soundproofing effect.

Conventionally, automatic sliding door devices (including those for draw doors and single sliding doors) have a sliding door movably suspended on a rail fixed within the upper frame of an opening frame, and the sliding door is driven by an appropriate drive device. It is designed to open and close with
There was a gap between the opening frame and the sliding door in the direction of the frame when the sliding door was closed, and even when the sliding door was closed, the airtightness and soundproofing effects were not high. Therefore, when performing soundproofing work on a building and installing an automatic sliding door device at the entrance, it is necessary to install another set of automatic sliding door devices on the indoor side of this automatic sliding door device to create a double structure and achieve soundproofing. Efforts have been made to improve the effect, but even with this double structure, individual automatic sliding door devices still have gaps as described above, making it impossible to achieve high soundproofing. Therefore, the disadvantage was that the construction costs were extremely high.

Therefore, in view of the above-mentioned drawbacks of the conventional automatic sliding door device, the present invention aims to provide a soundproof automatic sliding door device that can exhibit high soundproofing and airtightness even if it has a single layer structure. Move the sliding door in the direction of the frame until it almost touches the airtight material that surrounds the opening (this includes cases where there is a slight gap between the door and the airtight material or there is weak pressure contact with the airtight material). After that, when the sliding door is confirmed to be closed, the sliding door is pressed against the airtight material by the adsorption force of an electromagnet attached to the opening frame facing the sliding door.In addition, when opening the sliding door, before the sliding door is moved horizontally,
By cutting off the electricity to the electromagnet, the movable ring is moved to forcibly release the suction state of the sliding door at the closed position of the sliding door, thereby facilitating the subsequent horizontal movement of the sliding door. It is something to do. The present invention will be described below based on an embodiment shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an opening frame having an opening 1a, and a rail 2 is fixed within the upper frame 1b of this opening frame 1. As shown in FIG. Sliding door 3 on this rail 2
is suspended so that it can be opened and closed via a pair of left and right suspension devices 4A, 4B, and these suspension devices 4A, 4
A suspended wheel arm 4b of B is suspended between a drive pulley 5, which is provided at one end of the upper frame 1b and rotated by a motor M via a reduction gear (not shown), and a driven pulley 6, which is provided at the other end. The rotating drive belt 7 is connected, and the sliding door 3 is automatically opened and closed by the rotation of the drive belt 7. The sliding door 3 is made of aluminum, steel, stainless steel, or the like.

In such an automatic sliding door device, an airtight material 8 surrounding the opening 1a of the opening frame 1 is attached to the opening frame 1 at a position opposite to the sliding door 3 in the closed position with its contact surface facing the outdoor side. As shown in FIG. 3, electromagnets 9 are arranged above and below the vertical frames 1c and 1c of the opening frame 1, respectively, which are opposed to the vertical frames 3c and 3c of the sliding door 3. This electromagnet 9 has a main body 9a having an electromagnetic attraction surface 9b as shown in FIG.
The electromagnetic attraction surface 9b is held by a spring (not shown) inside.
It is composed of a movable piece 9c made of a non-magnetic material that is biased in the direction of protrusion and normally slightly protrudes from the electromagnetic attraction surface 9b, and the electromagnetic attraction surface 9b of the electromagnet 9 and the movable ring 9c As shown in the figure, the contact surface of the airtight material 8 and the opening 1a facing toward the outdoor side.
The front surface of the movable ring 9c is arranged so as not to protrude toward the sliding door 3 from the contact surface of the airtight material 8. Moreover, the rail 2 in the upper frame 1b consists of a rail 2a and a rail 2b as shown in FIG. 4, and a suspension device 4A is attached to the rail 2a.
A suspension device 4B is engaged with each rail 2b. The rails 2a, 2b are curved toward the indoor side so that the sliding door 3 moves in parallel to a position where it substantially contacts the airtight material 8 when the sliding door 3 is closed. Suspension device 4B (4A) moving on this rail 2b (2a)
is the rail 2b as shown in FIGS. 2 and 6.
(2a) A suspension bracket 4c is fixed to the suspension arm 4b which rotatably supports the suspension wheel 4a moving above, and a connecting body is attached to the suspension bracket 4c via a first hinge pin 4d parallel to the longitudinal direction of the upper frame 1b. 4
e is swingably connected to the airtight member 8 side, and a suspension bracket 4g fixed to the upper stile 3a of the sliding door 3 via a back metal 17 is connected to the connecting body 4e, and a second hinge pin parallel to the first hinge pin 4d is attached to the connecting body 4e. It is swingably connected to the opposite side of the airtight member 8 via 4f, and allows parallel movement of the sliding door 3 in the frame direction. Further, 4h is a guide roller which is rotatably supported by the suspension wheel arm 4b with a slight gap between it and the rail 2b (2a), and prevents the suspension wheel 4a from floating up from the rail 2b (2a). In addition, the upper and lower frames 1b and 1d of the opening frame 1 have curved rails 2a and 2b on the closed side (left side in FIG. 3) and the open side (right side in FIG. 3) at positions facing the airtight material 8. Guide rollers 10 are rotatably arranged corresponding to the points. On the other hand, the upper and lower frames 3a and 3b of the sliding door 3
A pair of guide pieces 11a and 11b made of synthetic resin are attached to the left and right sides to be guided by the guide roller 10 when the sliding door 3 is closed.
The movement of the sliding door 3 along the line 2b when closing is made smooth. And these guide rollers 10 and guide pieces 11
a and 11b are installed so that the opening side guide roller 10 does not interfere with the closing side guide piece 11a and prevent the movement of the sliding door 3, so that the phase in the frame direction is shifted, and the opening side guide roller 10 10 and guide piece 1
On the open side of the opening frame 3 from the engaging position of 1b,
Step portions 1e are formed on the lower frames 1b and 1d, respectively, so that when the sliding door 3 moves, the guide piece 11b is placed on the top and the lower frames 1b and 1d.
It is designed not to interfere with the In addition, guide roller 1
0 and the guide pieces 11a, 11b in the frame projection direction, the guide rollers 10, 10 are moved to the upper frame 1.
b and the lower frame 1d, respectively, with the phases shifted upward and downward, and guide pieces 11 are also installed on the sliding door 3 correspondingly.
a and 11b may be attached respectively. In addition, on the closed side of the lower stile 3b of the sliding door 3, there is a steady rest piece 12a made of synthetic resin having two protrusions in order to reduce swinging during the opening and closing operations of the sliding door 3, and on the open side there is a steady rest piece 12a made of synthetic resin. A synthetic resin steady rest piece 12b having a
are attached to the guide rail 1 in the lower frame 1d.
3 has these steady rest pieces 12 in the sliding door 3 closed position.
The steady rest piece 1 is located at a position opposite to a and 12b.
Recesses 14a, 14 corresponding to the shapes of 2a, 12b
b is formed so as not to prevent parallel movement of the sliding door 3 in the direction of the frame in the closed position. Further, in the closed position of the sliding door 3, electromagnetic adsorption plates 15 facing the plurality of electromagnets 9 at a slight distance are attached to the vertical frames 3c, 3c of the sliding door 3, respectively, to ensure airtightness of the vertical frames 3c, 3c. It is flush with the contact surface with the material 8. This electromagnetic attraction plate 15 can be omitted if the sliding door 3 itself is made of a material that can be attracted by the electromagnet 9, such as an iron plate. Also the first
In the figure, reference numeral 16 denotes a closing confirmation switch for the sliding door 3, which energizes the several electromagnets 9 after confirming that the sliding door 3 has stopped at the closed position.

According to such a configuration, in the process of the sliding door 3 moving toward the closed position, the sliding door 3 first moves along each linear moving portion 2c of the rails 2a, 2b at a predetermined distance from the airtight member 9. And suspension devices 4A, 4
When B passes through the inclined parts 2d of the rails 2a and 2b and reaches the stop straight part 2e parallel to the linear moving part 2c just before the closing position of the sliding door 3, the sliding door 3 will move as shown in FIG. It is parallel to and substantially in contact with the contact surface of the airtight material 8. During this movement, the sliding door 3 is guided in the frame direction (indoor direction) also by the guide roller 10 and the guide pieces 11a, 11b.
In addition, the steady rest pieces 12a, 1 of the lower stile 3b of the sliding door 3
2b fit into the recesses 14a and 14b of the guide rail 13, respectively. Then, at the same time as the sliding door 3 stops at the closed position, the closing confirmation switch 16 is activated and each electromagnet 9 of the opening frame 1 is energized. The electromagnetic adsorption plates 15 push the movable ring 9c into the main body 9a against the spring force in the main body 9a of each electromagnet 9, and the sliding door 3 closes the airtight material 8.
is crimped. In this case, in this embodiment, since the above-mentioned suspension device is used, when the electromagnetic adsorption plate 15 is pulled by the electromagnet 9, the sliding door 3 is moved parallel to the airtight material 8 by the action of the two hinge pins. It moves and maintains a vertical state and is uniformly crimped onto the airtight material 8.
Provides high airtightness and soundproofing.

Sliding door 3 closed airtight in this way
When a person stands in front of the sliding door 3 and a matsu switch or the like is activated, the power to each electromagnet 9 is cut off, and the sliding door 3 attempts to restore itself by its own weight, and in addition, the movable ring 9c of each electromagnet 9 is turned off. Resilience ensures that
The suction state is released, and at the same time, the motor M rotates in reverse, the drive belt 7 rotates, and the sliding door 3 is opened smoothly. In this case, the steady rest piece 1 on the closing side
2a has two protrusions and a recess 14 on the open side.
b has a shape corresponding to one protrusion of the opening side steady rest piece 12b, so the closing side steady rest piece 12a does not fit into the open side recess 14b during the opening/closing operation of the sliding door 3. The sliding door 3 opens and closes smoothly.

In this embodiment, a guide roller 10 is rotatably supported on the upper and lower frames 1b and 1d of the opening frame 1, and guide pieces 11a and 11 that engage with the guide roller 10
b is attached to the top of the sliding door 3 and to the lower stile 3a, 3b, but the same effect as in the above embodiment can be obtained even if it is attached in the opposite manner. Moreover, if the upper frame 1b of the opening frame 1, the vertical frames 1c, 1c, and each frame of the sliding door 3 are lined with a sound insulating material or a sound absorbing material, the soundproofing effect can be further enhanced. Furthermore, although the airtight material 8 is attached to the opening frame 1, the airtight material 8 may be attached to the sliding door 3 that faces the airtight material 8 and the sliding door 3 that faces the airtight material 8 when the sliding door 3 is closed. Note that it is also possible to attach the airtight material 8 only to the sliding door 3 side so as to surround the opening 1a of the opening frame 1 when the sliding door 3 is in the closed position. Also,
Vertical and horizontal airtight members 8 may be attached to the opening frame 1 and the sliding door 3 separately to surround the opening 1a when the sliding door 3 is closed. In addition, in this embodiment, the lower stile 3 of the sliding door 3
The guide pieces 11a, 11b and the guide roller 10 are arranged on the lower frame 1d, but instead, a curved lower guide rail is installed in the lower frame 1d in the same way as the two rails 2a, 2b described above. A door wheel may be rotatably supported within the sliding door 3b in response to this.

7 to 10 show other embodiments. In this embodiment, curved rails 2a and 2b are arranged above and below within the upper frame 1b, and the rails 2a and 2b are arranged above and below within the upper frame 1b.
The suspension device 104A is connected to the rail 2b suspension device 10.
4B is engaged. This suspension device 104B
(104A) is a suspension arm 104b that rotatably supports a suspension wheel 104a that can be tilted slightly in the frame direction on the rail 2b (2a), and a suspension bolt 104c is fixed downwardly so as to be adjustable upwardly and downwardly. A hanging bracket 104e is fixed to the lower end of this hanging bolt 104c to the upper stile 3a of the sliding door 3 via a back metal 17.
is the hinge pin 104 parallel to the longitudinal direction of the upper frame 1b.
d so as to be swingable, allowing the sliding door 3 to move in parallel in the direction of the frame.
Furthermore, since the two rails 2a and 2b are arranged above and below, the lengths of the suspension arm 104b of the suspension devices 104A and 104B are different. The other configurations are the same as those of the previous embodiment.

Even with this configuration, the curved rail 2
The sliding door 3 is guided along the directions a and 2b and substantially contacts the airtight member 8 in the closed position, and then the sliding door 3 is pressed against the airtight member 8 by the action of the electromagnet 9. In the case of this example,
Since the suspension devices 104A and 104B as described above are used, the suspension wheel 104a tilts around the contact points with the rails 2a and 2b, and the suspension wheel arm 104b also tilts.
Due to the function of the hinge pin 104d at the lower end of the hanging wheel 104a, the sliding door 3 is uniformly pressed against the airtight material 8 while maintaining its vertical position, resulting in high airtightness and soundproofing.

Above, the two embodiments were explained using a single sliding door,
Of course, it can also be applied to draw doors.
In this case, the two curved rails 2a, 2b
Another set of is arranged on the upper frame 1b symmetrically with respect to the dirt in the opening frame of the drawer door, and an electromagnetic wire is placed on the top of the butt frame of the drawer door (the part stored in the upper frame 1b). A suction plate is attached, and an electromagnet is installed in the upper frame on the airtight material side with a slight gap facing the electromagnetic suction plate. Further, an airtight material is attached to the abutting portions of the abutting frames of each sliding door, so that the airtight materials are pressed against each other at the center of the opening frame when the sliding door is closed. By doing this, even the sliding door can be soundproofed.
An airtight effect can be obtained. Furthermore, in the above two embodiments, the driving device was explained using the rotation of the motor M, but a pneumatic or hydraulic driving device may also be used, as long as the sliding door suspended on the rail can be opened and closed freely. good. In addition, in the above two embodiments, the sliding door was suspended via a suspension device using hinge pins to allow parallel movement in the direction of the frame, but the sliding door was guided by the rail in the upper frame and in the closed position. Since it is almost in contact with the airtight material, it is only necessary to attract a very small amount of attraction with an electromagnet. Since there is some play in the direction of the frame in between, the sliding door is sufficiently crimped to the airtight material and can exhibit soundproofing and airtightness. Note that the guide rollers 10 and guide pieces 11a, 11b on the top of the sliding door 3, on the bottom frames 3a, 3b, on the top of the opening frame 1, on the bottom frames 1b, 1d in the above-mentioned embodiment are the rails 2 in the top frame 1b.
This is to supplementarily guide the sliding door 3 moving along the rails 2a and 2b in the direction of the frame, and even if these are omitted, the sliding door 3 will still be guided by the rails 2a and 2b and move in the direction of the frame, so there will be no problem. can not use.

As described above, the present invention arranges the rails in the upper frame of the opening frame one by one in correspondence with the suspension devices, curves the rails, and guides the sliding door so that it substantially contacts the airtight material in the closed position. After that, when the closing of the sliding door is confirmed, the electromagnet in the opening frame is activated to pull the electromagnetic adsorption plate of the sliding door to press the sliding door to the airtight material, and this electromagnet is equipped with an electromagnetic adsorption surface. and a movable ring made of a non-magnetic material that is biased in a direction protruding from the electromagnetic attraction surface and normally protrudes slightly from the electromagnetic attraction surface, and this movable ring Since the sliding door does not protrude, when it is closed or pulled, the sliding door can be firmly pressed against the entire surface of the airtight material using an electromagnet, and even with a single layer structure, high airtightness and soundproofing properties can be obtained. When opening a sliding door, before moving it sideways, the electromagnet is de-energized so that the sliding door is forcibly released from its adsorption state by the action of the movable ring of the electromagnet in its closed position, and the sliding door is almost attached to the airtight material. This has the advantage that the sliding door can be reliably returned to the abutting state, the power required for the subsequent opening operation of the sliding door can be reduced, and the sliding door can be opened smoothly.

[Brief explanation of drawings]

Fig. 1 is a front view of a soundproof automatic sliding door device when the sliding door is closed, showing an embodiment of the present invention, Fig. 2 is a sectional view when the sliding door is open in Fig. 1, and Fig. 3 is a
A sectional view, FIG. 4 is a plan view showing the curvature of the rail,
Figure 5 is a diagram of the relationship between the electromagnet and airtight material, and Figure 6 is the relationship between the electromagnet and the airtight material.
7 is a front view of main parts of another embodiment, FIG. 8 is a sectional view when the sliding door is opened in FIG. 7, and FIG. 9 is a plan view showing the curve of the rail. 10 is a front view of the suspension device of FIG. 8; FIG. 1... Opening frame, 1a... Opening, 2... Rail, 3...
Sliding door, 4A, 4B, 104A, 104B... Hanging device, 8... Airtight material, 9... Electromagnet, 15... Electromagnetic adsorption plate, M... Motor.

Claims (1)

[Claims] 1. In an automatic sliding door device in which a sliding door is movably suspended from a rail fixed in the upper frame of an opening frame via a pair of left and right suspension devices, and the sliding door is opened and closed by an appropriate drive device. , an airtight material surrounding the opening is attached to the opening frame at a position opposite to the interior surface of the sliding door in the closed position of the sliding door, with its contact surface facing outside the room, and a main body having an electromagnetic adsorption surface; An electromagnet equipped with a movable ring made of a non-magnetic material that is biased in a direction protruding from the electromagnetic attraction surface and normally slightly protrudes from the electromagnetic attraction surface is attached to the electromagnet with the electromagnetic attraction surface and the movable ring facing the outdoor side. It is arranged so as to be located between the contact surface of the airtight material and the outdoor side surface of the opening, and one rail is provided in the upper frame for each of the left and right suspension devices, and this rail is connected to the sliding door. The sliding door is curved toward the indoor side so as to substantially touch the airtight material at the sliding door closed position, and an electromagnetic adsorption plate is fixed to the sliding door to face the electromagnet at a slight distance when the sliding door is closed. A soundproof automatic sliding door device, characterized in that the electromagnet is energized to press the sliding door against an airtight material.