JPS6122135Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a belt attachment mechanism for connecting a driving belt in an automatic door to the door.

Generally, automatic doors have a configuration as shown in Figure 1.
A driving wheel 2 and a driven wheel 3 connected to a driving source 1 are provided above the entrance and exit, and a belt 4 is wound around the driving wheel 2 and the driven wheel 3. On the other hand, door wheels 6, 6a are provided on the upper part of the door 5, and the door 5 is suspended on a rail 7 arranged along the entrance/exit via the door wheels 6, 6a. Further, the belt 4 is attached to a door hanger 8 provided at the top of the door 5. The drive wheel 2 is rotated by the drive of the drive source 1, and this rotation causes the belt 4 to move in the left and right directions in the figure, opening and closing the door 5 via the door hanger 8.

In such belt-driven automatic doors, the belt has conventionally been connected to the door by the method shown in FIG. 2. That is, in FIG. 2, both ends of the belt 4 are placed on the upper surface of the lower pressing part 8a of the door hanger 8 provided on the upper part of the door 5, and the upper plate 9 is attached from above to the lower pressing part 8a by bolts 10, 10a. It was installed on 8a. At this time bolt 1
0 and 10a passed through the belt 4.

However, with such conventional belt attachment mechanisms, the belt must be cut and adjusted to the appropriate length to match the automatic door at the site, so through holes for bolts must be formed in the belt in advance. Therefore, all work such as forming bolt through holes in the belt and attaching the belt to the door hanger using bolts had to be done on site, which was complicated and time-consuming. Furthermore, since the belt is directly attached to the door hanger at the top of the door, vibrations of the belt caused by driving the door are transmitted from the door hanger to the door wheel and the door, causing noise.

The present invention was developed in view of the above-mentioned problems, and it not only simplifies the work of connecting the drive belt to the door, but also reduces noise by preventing the vibration of the belt from being transmitted to the door wheel and door. Its purpose is to provide a buffer member with a bolt through hole in the center and recesses at both ends.
This is a belt attachment mechanism for an automatic door in which the belt ends are inserted into both of the recesses, and the attachment belt is attached and clamped through the bolt through hole by the upper presser plate and the lower presser part of the door hanger.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings. In FIG. 1 and FIGS. 3 to 5, as described above, a driving wheel 2 and a driven wheel 3 connected to a driving source 1 are provided above the entrance and exit, and a driving wheel 2 and a driven wheel 3 are provided between the driving wheel 2 and the driven wheel 3. Belt 4 is wound around it.
On the other hand, door wheels 6, 6a are provided on the upper part of the door 5, and the door wheels 6, 6a are provided on the rail 7 arranged along the entrance/exit.
The door 5 is suspended via the door 6a, and the door 5 is connected to the door wheels 6, 6a.
The entrance/exit is opened/closed while being supported and guided on the rail 7 by. A door hanger 8 is provided on the upper part of the door 5, and on the lower holding part 8a of this door hanger 8,
A buffer member 13 having a bolt through hole 11 in the center and insertion holes 12, 12a open at both ends is mounted. This buffer member 13 is made of an elastic material such as rubber, and both ends of the belt 4 are inserted into the insertion holes 12 and 12a, respectively. Then, the upper presser plate 1 is placed on the upper part of the buffer member 13 into which the belt 4 is inserted.
4, and connect the upper holding plate 14 and the lower holding part 8a of the door hanger 8 by passing the mounting bolts 15 through the bolt through holes 11 of the buffer member 13. By tightening the mounting bolts 15, the buffer member 13 is sufficiently held between the upper holding plate 14 and the lower holding part 8a, and the belt 4 and the door hanger 8 are securely connected. Therefore, when the driving wheel 2 is rotated by the driving of the driving source 1 and the belt 4 is moved, the door 5 is moved via the door hanger 8 and the door wheels 6, 6a are moved to the rail 7 according to the movement of the belt 4. Open and close the entrance while being supported and guided by the robot.

FIGS. 6 and 7 show other embodiments of the buffer member 13, in which the buffer member 17 has a bolt through hole 11 formed in the center and an insertion hole 18 that passes through the buffer member 17 in the longitudinal direction. do. This buffer member 17
is placed on the lower holding part 8a of the door hanger 8, both ends of the belt 4 are inserted from both ends of the insertion hole 18, and the mounting bolt 15 is passed through the bolt through hole 11 of the buffer member 17 as described above, and then the upper holding plate is inserted. 14
The buffer member 17 may be clamped by connecting the lower holding part 8a of the door hanger 8 to the lower holding part 8a of the door hanger 8.

The method for installing the belt 4 is to cut the belt 4 according to the automatic door at the site, and
With both ends of the belt 4 inserted into the insertion holes 12, 12a, or 18 of the buffer member 13 or 17, the buffer member 13 or 17 is held between the upper holding plate 14 and the lower holding part 8a using the mounting bolts 15. This is an extremely simple method. Furthermore, vibrations of the belt 4 that occur when the belt 4 moves due to the drive of the drive source 1 are absorbed by the buffer member 13 or 17 and are prevented from being transmitted to the door hanger 8.

As is clear from the above, according to the present invention, the buffer member with both ends of the belt inserted into the insertion hole is held between the upper holding plate and the lower holding part of the door hanger. It is only necessary to cut the belt, adjust it, and insert it into the insertion hole of the buffer member, and there is no need to form bolt holes in the belt as in the conventional case, which has the effect of greatly simplifying the installation work. In addition, since the belt and door hanger are connected via a buffer member, this prevents the vibration of the belt from being transmitted to the door wheel and door via the door hanger, which prevents the generation of noise due to vibration. This has the effect of reducing the noise of automatic door devices.

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram of an automatic door, Figure 2 is a schematic diagram showing a conventional belt and door hanger mounting structure,
Fig. 3 is a partially cutaway front view showing the mounting structure of the belt and door hanger of the present invention, Fig. 4 is a side view of Fig. 3, Fig. 5 is a plan view of Fig. 3, and Fig. 6 is a FIG. 7 is a partially cutaway front view showing another embodiment of the buffer member shown in the figure, and FIG. 7 is a plan view of FIG. 6. 1... Drive source, 2... Driving vehicle, 3... Driven vehicle,
4...Belt, 5...Door, 8...Door hanger,
8a... Lower presser part, 11... Bolt through hole, 1
2, 12a, 18...Insertion hole, 13, 17...Buffer member, 14...Upper holding plate, 15...Mounting bolt.

Claims (1)

[Scope of utility model registration request] In an automatic door in which a driving wheel and a driven wheel connected to a driving source are provided, a belt is wound between the driving wheel and the driven wheel, and a door is connected to this belt, the lower holding part of the door hanger is provided at the top of the door. A buffer member having a bolt through hole in the center and insertion holes opening at both ends is placed on top, the belt ends are inserted into the insertion holes from both ends, and the upper holding plate is attached from above the buffer member. A belt attachment mechanism for an automatic door, characterized in that the belt is attached to the lower holding part through the bolt through hole, and the buffer member into which the belt is inserted is clamped.