JPH0247385Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a ventilation hole device provided in a plurality of continuous side walls forming a corner of a telephone box or the like.

(Prior Art) Conventionally, for example, as a ventilation hole for a telephone box, it is known that ventilation holes are provided in three side walls other than the door. However, if these conventional ventilation holes are used as they are, rain and snow will blow into the box, so it is desired that each ventilation hole be provided with a lid that can be opened and closed. In that case, if separate opening/closing covers are attached to the ventilation holes on each side wall, opening/closing the lids of the ventilation holes on the three side walls becomes troublesome, and countermeasures are needed to solve this problem.

(Problems to be Solved by the Invention) The object of the present invention is to provide a ventilation hole device that can easily open and close the covers of ventilation holes on multiple side walls.

(Means for Solving the Problems) In order to achieve the above object, the ventilation hole device of the present invention has a plurality of ventilation holes arranged in parallel at intervals in a continuous direction of the side walls on a plurality of continuous side walls forming a corner. Each hole is opened, and a cover plate is supported on the ventilation hole opening surface of each of the side walls so as to be able to slide back and forth in the continuous direction of the side wall, and each cover plate has a plurality of holes corresponding to the ventilation holes. A plurality of shielding portions are arranged alternately in parallel with the plurality of ventilation holes at equal intervals and in the same direction, and among the cover plates, adjacent cover plates in the side wall continuous direction are connected to the corners by flexible connecting strips. It has a structure in which they are interconnected through the corners so that they can interlock with each other. An example of implementation in a ventilation hole of a telephone box will be described below with reference to the drawings.

In Fig. 1, side walls 6, 7, and 8 are installed continuously between the hollow supports 2, 3, 4, and 5 at the four corners of the telephone box 1, forming a corner with each other. A large number of ventilation holes 9 are arranged in parallel in the continuous direction of the side walls at regular intervals slightly wider than the diameter of the ventilation holes 9, and these side walls 6, 7, 8
A ventilation hole opening/closing mechanism is provided on the inner surface where the ventilation holes 9 open.

The structure of the ventilation hole opening/closing mechanism is as follows. A cover plate guide frame 1 is placed on the inside surface of the ventilation hole opening of each side wall 6, 7, and 8.
0, 11, and 12 are attached with screws 13 and 13, respectively, and the guide frames 10, 11, and 12 are provided with a substrate 15 having holes 14 having the same shape as the ventilation holes 9 at the same spacing as shown in the third figure. A long channel-shaped frame body consisting of side plates 16, 16.
In between, a large number of guide pins 17 are installed at small intervals between the inner surface of the substrate 15, and these guide frames 10, 11, 12 are arranged so that their holes 14 are aligned with the ventilation holes 9. Then, cover plates 18, 19, 20 in the form of elongated plates are fixed to each side wall in the continuous direction of the side walls within a small interval between the inner surface of the base plate 15 of each guide frame 10, 11, 12 and the guide pin 17... These cover plates 18, 19,
20 has corresponding side walls 6, 7, as shown in the third figure.
A large number of circular holes 21 corresponding to the ventilation holes 9 of 8...
and a large number of shielding parts 22... are arranged in parallel with the ventilation holes 9... alternately at equal intervals, so that the cover plates 18, 1
By sliding the holes 21 and 20, when the holes 21 are aligned with the ventilation holes 9 on the side wall, the ventilation holes are opened, and when the shielding parts 22 are aligned with the ventilation holes 9, the ventilation holes are closed. be.

For the adjacent lid plates 18 and 19 supported as described above, a connecting wire 23 having one end connected to the end of one of the lid plates 18 is guided into the hollow support 3 as shown in the second figure. Pull it out to the other side of the cover plate 19 via the guide pulley 24 provided in the support column,
Therefore, the other end is connected to the end of the other cover plate 19, and the adjacent cover plates 19 and 20 are similarly connected by a connecting wire 25 via a guide pulley 26. In this case, between each cover plate 18, 19, 20, the hole 21 is connected to the ventilation hole 9 of the corresponding side wall 6, 7, 8.
...and the shielding part 22 are in a positional relationship that allows them to coincide with each other synchronously.

In this example, an opening/closing driving means is further provided. First, one end of the wire 27 is connected to the extreme end of the cover plate 20 located at one end, the other end is guided into the hollow support 5, and the wire 27 is installed inside the support. The wire return device 28 is connected to a wire return device 28. As shown in the fourth figure, the return device 28 has a cylinder 30 fixed on a support plate 29 with bolts 31, a shaft 32 protruding from the center of the cylinder 30, and a winding wound around the upper end of the shaft 32. The take-up pulley 33 is rotatably supported, and one end 35 of a coil spring 34 inserted into the cylinder 30 is fixed to the cylinder 30 and the other end 36 is fixed to the pulley 33, so that the spring 34 is attached to the pulley 33. Figure 2 gives an elastic force in the counterclockwise direction.
The other end of the wire 27 is fixed to this pulley 33 with a set screw 42, and each cover plate 18, 19, 20 is constantly pulled elastically toward the return device 28 (in the return direction). ...to cover plate 18,1
The shielding portions 22 of 9 and 20 are made to match.

On the other hand, a third
As shown in the figure, a vertical drive pin guide groove 37 is provided, and a corresponding side wall 6 and guide frame 1 are provided.
0, a horizontal driving pin guide groove 38 and a locking groove 39 that bends vertically from the groove end of the cover plate 18 are provided at the extreme end of the cover plate 18. In this case, the ventilation hole 9 in FIG. The upper end of the guide groove 37 of the cover plate 18 matched with the return end of the guide groove 38, and the cover plate 18 was slid in the direction opposite to the return direction (driving direction) to open the ventilation holes 9. Sometimes the guide groove 37 is the locking groove 3.
9, the drive pin 40 is inserted into the guide grooves 37 and 38, and the nut 41 is inserted.
It is screwed on.

The effect of the above example is as follows. When the drive pin 40 is manually moved in the drive direction of the arrow along the guide groove 38 from the state where the ventilation holes 9 are closed in FIG. 19 and 20 slide in the driving direction while rewinding the wire 27 from the take-up pulley 33 against the spring of the return device 28, aligning the holes 21 with the ventilation holes 9 and opening the ventilation holes. do. Then, when the driving pin 40 is pushed down along the guide groove 37, the driving pin 40 locks in the locking groove 39, and each cover plate 18,
19, 20 are irreversibly locked, and the ventilation holes 9 are kept open.

If ventilation is not required, push the drive pin 40 upward along the guide groove 37, and the drive pin 40 will disengage from the locking groove 39. When the manual operation is released, the drive pin 40 will be moved to the take-up pulley 33 of the return device. The wire 27 is wound up, and thereby each cover plate 18, 19, 20 is pulled back in the return direction to align the shielding portion 22 with the ventilation hole 9 and close it.

As another embodiment of the present invention, the return device 28 of the above example is removed, the lid plates are connected by a flexible shaft instead of the connecting wires 23 and 25, and the other structure is substantially the same as the above example, Drive pin 4
There is also an example in which the ventilation holes are opened and closed by manual reciprocating drive.

Furthermore, instead of the above flexible shaft,
A flexible metal pipe in which a steel wire such as a piano wire is inserted may also be used, and in that case, the pulleys 24 and 26 can be omitted.

(Effect of the invention) According to the ventilation hole device of the telephone box, etc. of the present invention,
With regard to ventilation holes provided in multiple side walls that form a continuous corner, it is now possible to open and close the ventilation holes on all side walls at the same time by simply sliding the cover plate of one of the ventilation holes back and forth. , extremely convenient to use.

[Brief explanation of the drawing]

The drawings show an example of the present invention. Figure 1 is a slope view of a telephone box, Figure 2 is an enlarged horizontal cross-sectional view of the ventilation hole partially omitted, and Figure 3 is an enlarged slope view of the ventilation hole partially separated. , FIG. 4 is an enlarged longitudinal sectional view of the return device. 6,7,8...Side wall, 9...Ventilation hole, 18,1
9, 20... Lid plate, 21... Hole, 22... Shielding part, 23, 25... Connection wire.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of ventilation holes arranged in parallel at intervals in the continuous direction of the side walls are provided in a plurality of continuous side walls forming a corner, and on the ventilation hole opening surface of each of the side walls, Each cover plate is supported so as to be slidable back and forth in the continuous direction of the side wall, and each cover plate has a plurality of holes corresponding to the ventilation holes and a plurality of shielding parts at equal intervals with the plurality of ventilation holes. Telephone boxes, etc., which are arranged alternately in the same direction, and in which the cover plates adjacent to each other in the continuous direction of the side walls are movably connected to each other via the corner portions by flexible connecting strips. Ventilation hole device.