JPS5923195Y2 - Folding door hinge - Google Patents

Description

[Detailed description of the invention] This invention relates to a hinge part of a folding door used for an entrance door of a melting room or the like.

A folding door is a door that can be opened by folding into two or more stages, and has a structure in which the hinge portion protrudes when opening and closing, that is, when folding or pulling.

When used as an entrance/exit door for a melting chamber or the like, the protruding side of the hinge portion is generally placed on the melting chamber side.

On the other hand, many of the recent folding doors (but not limited to folding doors) are made of aluminum sash, and the upper and lower edges of the vertical stile, etc. located at the hinge part are either cut edges or have rough edges with acute angles. There is.

Although there is no particular problem with the upper end, it is dangerous to leave the lower end as it is.

In other words, as mentioned earlier, the hinge part of a folding door protrudes when opening and closing, and especially in the case of a melting chamber, there is a high risk that the lower end of the hinge, which protrudes toward the melting chamber, may hit the human body, bare feet, etc., causing injury. be.

Conventionally, no protection measures have been taken against such risks.

This idea was devised in view of the above-mentioned circumstances. A pair of vertical stiles with folding doors are arranged facing each other, cover plates are placed on both vertical stiles, and mounting blocks with bearing holes are attached to each vertical stiles. At the same time, a mounting plate having a pair of shaft protrusions erected on the substrate is fixed to the end of the cover plate with the shaft protrusions rotatably fitted into the bearing hole, and The present invention provides a hinge portion of a folding door which aims at the safety of the human body, especially the feet, by covering the end faces of the cover plate and the mounting plate with a safety cover made of a soft material attached to the mounting plate.

This invention will be explained below with reference to illustrated embodiments.

Figure 1 is a front view of a folding door, where 1 is the opening frame, 2 and 3 are a pair of doors facing each other, 4 is an adjacent door, and 2 and 3 are provided along the hinge part 5. A cover plate 8 that covers the gap between the vertical frames 6 and 7 of the hinge portion 5 is one of the safety covers made of synthetic resin, which is a soft material.

The folding door described above is bent open toward the front in the drawing, and the hinge portion 5 extends toward the front.

Next, the structure of the hinge portion 5 is shown in FIGS. 2 and 3.

The vertical frames 6 and 7 are made of metal shapes such as hollow aluminum shapes, and are rotatably supported by connecting devices 9 at their upper and lower ends with an appropriate gap between them.

That is, the connecting device 9 includes a pair of synthetic resin mounting blocks 11. which can be fitted into the hollow portions 10 of the vertical frames 6 and 7, respectively.
12, and a metal mounting plate 13 that straddles and connects the mounting blocks 11 and 12.

Rotation of both vertical frames 6, 7 corresponding to both vertical frames 6, 7 on the upper surface or lower surface of the substrate of the mounting plate 13 (that is, on the lower surface for the upper mounting plate, and on the upper surface for the lower mounting plate) A central metal wheel bearing projection 14.15 is provided, and these shaft projections 14
, 15, each mounting block 11.12 is provided with bearing holes 16, 17 into which a shaft protrusion 14.15 can be rotatably fitted.

Fins 18 on the sides of the mounting block 11.12
．． Reference numeral 19 is a removal prevention piece for preventing the attachment blocks 11 and 12 from coming off (coming off) when the attachment blocks 11 and 12 are fitted into the vertical frames 6 and 7.

With such a configuration, the vertical frames 6 and 7 are connected to each other so as to be freely rotatable about the shaft protrusions 14 and 15 of the mounting plate 13, but the opposing end surfaces of the vertical frames 6 and 7 are connected to the shaft protrusions 14 and 15. It is formed into a substantially semicircular curvature surface having a substantially constant curvature with the center of the curvature as the center of curvature.

A cover plate 4 is disposed between the stiles 6 and 7 along the longitudinal direction of the stiles 6 and 7.

This cover plate 4 has a substantially T-shaped cross section, with the base 20 located between the vertical frames 6 and 7, and both flanges 21 and 22 located between the vertical frames 6 and 7.
7, and is screwed to the mounting plate 13 of the coupling device 9 at the lower end.

(See Figure 2.) Furthermore, the cover plate 4 has both flanges 21
．． The relative positional relationship between the cover plate and the vertical frames 6 and 7 is fixed so that the opposing gap A between the vertical frame 22 and the vertical frame 6°70 semicircular portion 23, 24 becomes a minute gap.

In addition, the cover plate 4 and the vertical frame 6, which are used when opening and closing the folding door,
The opposing gap A between the frame 6 and the frame 6 is always a small gap and is approximately constant, so the size of the gap A does not change and the finger etc.
, 7, and there is no room for the person to be caught between the two, and danger can be prevented.

Now, on the upper and lower ends of the vertical frames 6 and 7, there are mounting blocks 11° and 12.
are fitted and fixed by the mounting plate 13.

Further, the outer surface of the mounting plate 13 is covered with a safety cover 8 made of synthetic resin, which is a soft material.

Since these mounting blocks 11.12 and the safety cover 8 are made of synthetic resin, the upper and lower ends of the metal vertical frames 6 and 7 are covered with the mounting blocks, and the mounting blocks 11.12 are attached to the mounting plate 13.
Furthermore, the mounting plate 13 will be covered by a safety cover.

Therefore, the human body or feet are protected by the mounting blocks 11.12 against the rough surfaces of the lower ends of the stiles 6, 7, and the human body is protected by the mounting plate 13, which does not move even from the rotating mounting blocks 11.12.

The metal mounting plate 13 is covered with a safety cap 8 so as not to be exposed to the outside.

Furthermore, the aforementioned safety cover 8 also extends to the lower end of the cover plate 4.

In this embodiment, of the members constituting the hinge portion 5, the cover plate 4 projects most outwardly.

Whether the cover plate 4 is made of metal or synthetic resin, it is not desirable and dangerous for the cut end surface to be exposed as it is.

Therefore, the above-mentioned safety cover 8 is attached, and as shown in FIG.
It is attached with screws.

Note that the safety cover 8 may be integrated with the mounting plate 13 in advance.

As described above, according to this invention, a mounting block is attached to the end of the vertical stile at the hinge part of the folding door, which always protrudes when opening and closing, to prevent the cut end surface from being exposed, and the rotating mounting block is covered with a mounting plate. This prevents objects from being caught between the mounting blocks, and by covering the mounting plate with a safety cover 8 made of soft material, the folding door is extremely safe as it will not cause injury even if a human body or foot hits it. can be provided.

[Brief explanation of the drawing]

Figure 1 is a front view of the folding door, Figure 2 is a partially enlarged exploded perspective view showing the state in which the vertical stile and cover plate are connected and secured, and the safety cover is attached, and Figure 3 is the state in which the safety cover and mounting plate are secured. FIG. 4 is a sectional view taken along the line II in FIG. 1, showing the relationship between the stile and the sealing member, and FIG. 5 is a perspective view showing the state in which the safety cover is attached. 1... Opening frame, 2, 3... Door, 4... Cover plate, 5... Folding door, 6... Vertical stile, 7... Vertical stile, 8
...Safety cover 9...Connection device, 10...Hollow part, 11...Mounting block, 12...Mounting block,
13...Mounting plate, 14...Shaft protrusion, 15...Shaft protrusion, 16...Bearing hole, 17...Bearing hole, 18...
Fin portion, 19... Fin portion, 20... Base, 21...
- Flange part, 22... Flange part, 23... Semicircular part, 24... Semicircular part, 25... Flange.

Claims (1)

[Scope of utility model registration request] A pair of vertical stiles 6 and 7 with folding doors are arranged facing each other, and both vertical stiles 6,
A mounting block 11.12 having a bearing hole 16° 17 is mounted on the end of each vertical frame 6, 7, and a pair of shaft protrusions erected on the base plate. 14.15 and the shaft protrusion 14 into the bearing hole 16.17.
, 15 are rotatably fitted and fixed to the ends of the cover plate 4, and the end surfaces of the cover plate 4 and the mounting plate 13 are covered with a safety cover 8 made of a soft material and attached to the mounting plate 13. The hinge part of a folding door is characterized by: