JP7053025B2 - Emergency telephone box door device - Google Patents

Description

The present invention relates to a door device for an emergency telephone box using a single door provided at a doorway.

Conventionally, when the door is opened, the door must be stored inside without protruding to the front in a limited space where sufficient space for storing the door cannot be secured on both sides of the door. There is a door. For example, as a structure equipped with such a restricted door, there is an emergency telephone box installed in a box-extracting portion in a tunnel pit of a road.

The door of the emergency telephone box is composed of a break-action opening / closing door. The center-folding type opening / closing door is divided into a base side door that is rotatably hinged to the emergency telephone box and an opening / closing end side door that is hinged to the base side door. The door on the opening / closing end side is stored inside the box in a folded state. Further, the rotatable hinge portion of the base side door is provided with an auto hinge which is a rotation driving mechanism for urging the door in the closing direction.

However, the auto-hinge, which is the rotation drive mechanism of the break-action type opening / closing door, is stuck due to deterioration over time, and the door cannot be opened / closed. Therefore, an opening / closing method without an auto-hinge has been desired.

In view of these points, the present invention is an automatic closing door that is stored inside without protruding the door to the front in a limited space when the door is opened, and is an emergency telephone without an auto hinge. It is intended to provide a box door device.

In order to achieve the above object, the present invention is provided with a single door at the entrance / exit of the emergency telephone box, and a first guide rail parallel to the door and a door are stored on the ceiling surface of the emergency telephone box. It has a second guide rail in the direction, a guide groove parallel to the door on the floor of the emergency telephone box, and a first moving pulley that can move along the first guide rail at the top of the door. , A second moving pulley that can move along the second guide rail, and a shaft that moves along the guide groove at the lower end of the door on the first moving pulley side, the first moving pulley and the first. One end of each cord-like body is fixed to each of the two moving pulleys, and the other end of each cord-like body is individually fixed to the urging means in the common hollow panel in the door closing direction via a turning member. It is supposed to be.

Further, the cord-like body may be a wire rope, and the turning member may be a resin pulley.

Further, the urging means may be a weight. With this configuration, the automatic closing force of the door can be adjusted by changing the weight of the weight.

Further, the hollow panel may be arranged on an extension line of the first guide rail on the second guide rail side.

According to the present invention, it is possible to configure an automatically closed door that is stored inside in a limited space without projecting the door to the front without providing an auto hinge, and it is possible to extend the life of the door.

It is a front view which shows one Embodiment provided with the door device of the emergency telephone box which concerns on this invention. It is a top view which shows one Embodiment which provided the door device of the emergency telephone box which concerns on this invention. FIG. 3 is an enlarged cross-sectional view taken along the line II-II shown in FIG. It is a top view which shows the closed state of the door shown in FIG. It is a top view which shows the retracted state of the door shown in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following embodiment, an example configured as an automatic closing door for the entrance / exit of an emergency telephone box will be described.

As shown in FIGS. 1, 2, and 3, the emergency telephone box 1 is provided with a single door 20 at the doorway. Further, the emergency telephone box 1 is provided with an emergency telephone 10 inside. The top plate 30 of the emergency telephone box 1 has a first guide rail 31 parallel to the door 20 and a second guide rail 32 in the direction in which the door 20 is stored from one end side of the first guide rail 31. Is fixed. The floor plate 40 of the emergency telephone box 1 is provided with a guide groove 41 parallel to the door 20. A first moving pulley 21 that can move along the first guide rail 31 and a second moving pulley 22 that can move along the second guide rail 32 are fixed to the upper end of the door 20. The door 20 is suspended from the first and second guide rails 31 and 32 via the first and second moving pulleys 21 and 22. Further, a shaft 23 that can move along the guide groove 41 is fixed to the lower end of the door 20 on the first moving pulley 21 side. Further, one end of the wire rope 51 is fixed to the first moving pulley 21, and the other end is fixed to the weight 53 in the hollow panel 60 via the resin pulleys 55 and 56. One end of the wire rope 52 is fixed to the second moving pulley 22, and the other end is fixed to the weight 54 in the hollow panel 60 via the resin pulleys 57, 58, 59. The hollow panel 60 is arranged on an extension line of the first guide rail 31 on the side where the second guide rail 32 is provided.

The wire ropes 51 and 52 as a cord may be a chain. The resin pulleys 55, 56 ... 59 as the turning members may be metal pulleys. The weights 53 and 54 as the urging means may be springs.

As shown in FIG. 4, the door 20 is always closed by the urging force of the weights 53 and 54 in the closing direction. The user of the emergency telephone box pushes the handle 24 of the door 20 to open the door 20 and enter the room. The door 20 is stored at the position shown in FIG. 5 when it is fully opened. When the user leaves the room, the handle 25 is pulled to open the door 20 and the user leaves the room. The door 20 automatically closes to the position shown in FIG. 4 when there is no urging force in the opening direction by the user. The handles 24 and 25 are fixed sideways to the cross rail of the door 20.

The door device of the emergency telephone box with a single door configured as described above can be stored inside without projecting the door to the front. In addition, it has a long life because it is not equipped with an auto hinge.

The present invention is subject to the restriction that when the door is opened, the door must be stored inside without protruding to the front in a limited space where sufficient space for storing the door cannot be secured on both sides of the door pocket or the like. It can also be used for the automatic closing door of a single door of an emergency telephone box.

1 ... Emergency telephone box 10 ... Emergency telephone 20 ... Door 21 ... First moving pulley 22 ... Second moving pulley 23 ... Axis 24 ... Handle 25 ... Handle 30 ... Top plate 31 ... First guide rail 32 ... Second Guide rail 40 ... Floor plate 41 ... Guide groove 51 ... Wire rope 52 ... Wire rope 53 ... Weight 54 ... Weight 55 ... Resin pulley 56 ... Resin pulley 57 ... Resin pulley 58 ... Resin pulley 59 ... Resin pulley 60 ... Hollow panel

Claims (4)

The entrance and exit of the emergency telephone box is equipped with a single door, and the ceiling surface of the emergency telephone box is equipped with a first guide rail parallel to the door and a second guide rail in the direction in which the door is stored. The floor of the telephone box is equipped with a guide groove parallel to the door, and at the upper end of the door, a first moving pulley that can move along the first guide rail and a second moving pulley that can move along the second guide rail. A second moving pulley is provided, a shaft that moves along a guide groove is provided at the lower end of the door on the first moving pulley side, and a cord-like body is provided for each of the first moving pulley and the second moving pulley. A door device for an emergency telephone box, characterized in that one end of each cord is fixed individually to a door closing urging means in a common hollow panel via a turning member. The door device for an emergency telephone box according to claim 1, wherein the cord-like body is a wire rope, and the turning member is a resin pulley. The door device for an emergency telephone box according to claim 1 or 2, wherein the urging means is a weight. The door device for an emergency telephone box according to any one of claims 1 to 3 , wherein the hollow panel is arranged on an extension line of the first guide rail on the second guide rail side. ..

Images