JPS5845425Y2 - folding door - Google Patents

Description

[Detailed explanation of the idea] This invention mainly relates to a folding door with an improved bottom frame.

Conventionally, many folding doors of this type can be opened and closed by having rails or grooves provided in the upper and lower frames guide door wheels or rollers provided in the side stile of the door body. The rails and grooves provided in the bottom frame have drawbacks such as getting in the way of sweeping out dust and other dirt during cleaning, and especially when the above folding door is used in a bathroom etc. There were problems such as water accumulating inside the product, causing corrosion and other problems, and significantly reducing durability.

This invention was made with the aim of improving this problem, and it provides a folding door that allows the door body to be opened and closed without providing a rail that protrudes to the top surface of the lower frame or a groove that opens to the top surface. This makes it easy to clean out water and drain water.

This invention will be described in detail below with reference to an illustrated embodiment.

In the figure, 1 is the opening of the building such as a bathroom, and the upper and lower frames 2 and 3
and a vertical frame 4 are fixed, and a door main body 5 is attached within the framework consisting of the upper and lower frames 2, 3 and the vertical frame 4 so as to be openable and closable.

The door main body 5 is divided into two parts, for example, and each member 5a and 5b is hinged to each other by a hinge (not shown), and one side edge of the door main body 5 is hinged to one vertical frame 4. It is hinged by 6.

Further, at the open end of the door body 5, a roller 7 is attached to the upper part of the short root 5C, and a guide mechanism 8 shown in FIGS. 4 and below is attached to the lower part.

The roller 7 is rotatably supported by a vertical shaft 7a, and is fitted into a groove 2a formed along the longitudinal direction on the lower surface of the upper frame 2, so that it can be moved freely within the groove 2a. There is.

On the other hand, the guide mechanism 8 attached to the short root 5C of the door body 5 has a support plate 10 fixed inside the vertical stile 5 with screws 9.

The support plate 10 is approximately L-shaped, with vertical sides 10
A long hole for adjustment 10C is vertically spaced apart on the upper side, and a long hole for fixing 10D is formed on the lower side, respectively, and the short root 5C is inserted through the through hole 5d opened in the doorstop surface. The adjusted adjustment screw 9a is screwed into the screw hole 5e drilled in the partition 5d from this long adjustment hole 10C, and in this state, the support plate 1
After adjusting the height of 0, the fixing screw 9b screwed into the screw hole 5e from the long fixing hole 10d is used to fix it by 1%.

Further, a step 10e is formed on the horizontal side 10b of the support plate 10, and a rotary plate 12 is rotatably inserted into a through hole 10f bored in the center of the step 10e by means of a pin 11. installed on.

The rotating plate 12 has a substantially T-shape, and a pair of rollers 14 are rotatably supported by pins 13 at positions forming a triangle with the pin 11 on the upper surface of both ends of the right side portion 12a. The tip of the branch side portion 12b is pivotally attached to the stepped portion 10e of the support plate 10 by the pin 11.

Each roller 14 of the rotating plate 12 is fitted into a guide groove 3b formed along the longitudinal direction on the lower surface of the top plate 3a of the lower frame 3, and guides the opening and closing of the door body 5.

In addition, 15 in the figure is a sealing member attached to the side surface of the door body 5 of the upper and lower frames 2, 3 and the short frame 4, which comes into contact with the door body 5 when the door is closed to provide an airtight effect.

As described in detail above, in this invention, a guide groove 3b opening downward is provided in the lower frame 3 attached to the building opening 1, and a roller 14 is attached to the guide groove 3b toward the open end side of the door body 5. is inserted to guide the opening and closing of the door body 5, so the door body 5 can be opened and closed as smoothly as before, and since there are no rails or grooves in the lower frame 3, it is easy to clean when sweeping out. There is no risk of it getting in the way or worsening drainage.

In addition, since the pair of rollers 14 supported by the rotating plate 12 are arranged at each corner of a triangle whose apex is the pin 11 supporting the rotating plate 12, when the door body 5 is opened and closed, the rollers 14 are opened and closed. Since the force is evenly distributed from the pin 11 to each roller 14 and transmitted to the guide groove 3b, the force is transmitted to the guide groove 3b.
There is no risk that the roller 14 will get caught in the middle and prevent smooth opening and closing.

Furthermore, since the height of the support plate 10 that supports the rotating plate 12 can be adjusted from the side of the short root 5C, later adjustments to the lower frame 3 can be easily made in a short time. .

Furthermore, since a seal member is provided on the side of the guide groove on the side of the door body, which comes into contact with the door body when the door body is closed, the airtightness of the folding door can be further improved.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with Fig. 1 being an overall front view, Fig. 2 being an enlarged sectional view taken along line II-II in Fig. 1, and Fig. 3 being taken along line III-III in Fig. 1. An enlarged sectional view, FIG. 4 is an exploded perspective view of the guide mechanism, and FIG. 5 is a perspective view of the same in an assembled state. 1 is a building opening, 2 is an upper frame, 3 is a lower frame, 3b is a guide groove, 4 is a short frame, 5 is a door body, 5a and 5b are members, 12 is a rotating plate, 12a is a right side part, 12 b is the branching side, 14
is the roller, and 16 is the tension.

Claims (1)

[Scope of utility model registration request] It is divided into a plurality of members 5a, 5b between the upper and lower frames 2, 3 and the short frame 4 fixed to the building opening 1, and each member 5a,
The door body 5 is hinged so that the space between 5b and 5b can be folded freely to open and close, and a hole is bored at the bottom of the short root 5C on the open end side of the door body 5. The screws 9a, 9 inserted from the long holes 10C, 10d side of the support plate 10
b is screwed in to fix the support plate 10 in a height-adjustable manner, and the support plate 10 is provided with a stepped portion 10e, and the stepped portion 10e is provided with a pin 11 for rotation in an approximately T-shape. The end of the branched side 12b of the plate 12 is rotatably pivoted, and a pair of rollers 14 are provided at the end of the right side 12a of the rotating plate 12 at a position forming a triangle with the pin 11. The folding door is constructed by supporting these rollers 14 and fitting them from below into a guide groove 3b which is provided along the longitudinal direction on the lower surface of the top plate 3a of the lower frame 3 and whose lower surface is open.