JP3185683B2 - Drop-prevention mechanism for hanging doors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging door of the so-called hanging type, and more particularly to a fall prevention mechanism for preventing a guide portion such as a roller provided on a hanging portion (hanger) of the door from falling off a door rail. It concerns the mechanism.

[0002]

2. Description of the Related Art A conventional mechanism for preventing a hanging door from falling will be described with reference to FIGS. here,
FIG. 5 shows a vertical section of the suspension door, and FIG. 6 shows a state before assembly. As shown in FIG. 5, a hanger 172 for hanging the door 70 to the door rail 120 has a shaft 1 attached thereto.
A roller 174 is attached by 76 to form a hanger assembly. The hanger assembly is fixed to the upper end of the door 70 by bolts, and
Is hung on the door rail 120 so that the door 70
Is suspended. On the lower side of the roller 174, the rail 1
The sub-roller 104 hangs the hanger 17 so as to sandwich the
If the door 70 is pushed up by some force, the sub roller 104 hits the lower surface of the rail 120 and the roller 174
It prevents falling from zero.

[0003]

However, in the conventional sub-roller 104, as shown in FIG.
a, a roller 104b rotatably mounted on the outside thereof,
E-ring 104 for preventing the roller 104 from coming off
(c) Further, a nut 104d for fastening the pin 104a to the hanger 172 is required, and the number of parts is large. There is also a problem of the strength of the sub roller 104. Further, in the door construction at the site, the main roller 174 is connected to the door rail 120.
After that, the sub-roller 104 must be inserted into the key-shaped through hole 172a of the hanger 172, and the sub-roller 104 must be tightened with the nut 104d. Furthermore, the sub-roller 104 is
02, the sub-roller 104, which is a small part, is often lost in the on-site construction, making it impossible to assemble the sub-roller 104.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a low-cost, high-strength drop-prevention mechanism for a hanging door and high on-site workability. Is to do.

[0005]

According to a first aspect of the present invention, there is provided an L-shaped hanger having a side wall and a bottom wall fixed to an upper portion of a door body, and a guide provided on the hanger. Part is hung on the door rail with an up-down fit, and the guide part thereof and the suspended door body suspended via the hanger move along the door rail. In a through hole formed in the side wall of the hanger, a screw inserted in a direction crossing the door rail, and screwed with the screw, held by the hanger, and in a standing state with the rotation of the screw, or , a block having flexibility may be recumbent state, when the block is upright, between the lower end of the top portion and the door rail, preventing the said guide portion from falling off the door rail small quantity Can a gap, also when the block is lying, between the lower end of the upper part and door rail, the guide portion may disconnect from the door rail and consists of a block that can be made relatively large gap, said block
The bottom of the hanger contacts the bottom wall of the hanger
Abut the bottom of the block in a lying position
A technical feature is that a corner located on the bottom wall side of the moth is chamfered .

Further, in claim 2, in claim 1 ,
A technical feature is that a convex portion is formed on the block, and the convex portion fits with a concave portion formed on the hanger in an upright state.

In the mechanism for preventing the hanging door from falling according to the first aspect, when the block is erected, only a small gap exists between the top of the block and the lower end of the door rail. It can be prevented from falling off. That is, when the door body is pushed up by some force, the top of the block hits the lower surface of the door rail, and the guide portion is prevented from falling off the door rail. On the other hand, when the block is lying down, a relatively large gap is formed between the upper portion of the block and the lower end of the door rail, so that the guide portion can be easily removed from the door rail. Then, by turning the screw inserted into the through hole of the hanger, the block can be rotated to stand up or lie down. Also, the bottom located on the bottom wall side of the hanger is chamfered.
So that the block can be easily raised from
Can be made.

In the hanging door falling prevention mechanism of the second aspect, the upright state can be firmly maintained by fitting the convex portion of the block with the concave portion formed in the hanger in the upright state.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state before assembling a hanging door to which a fall prevention mechanism according to a first embodiment of the present invention is applied, and FIG. 2A shows a state after assembling the hanging door. FIG. 2 is a front view, and FIG.
(B) is a side view. As shown in FIG. 2B, the door 70 is suspended from the door rail 20 by a hanger 72. The door rail 20 is formed in an L-shape including a side wall 20b and a bottom wall 20c, and a semicircular rail portion 20a is formed above the bottom wall 20b. Similarly, hanger 7
2 is formed in an L-shape composed of a side wall 72d and a bottom wall 72e, and a shaft 77 for rotatably supporting a roller 74 is fixed to the vicinity of the upper end of the hanger 72. By rolling the rail portion 20a, the door 70 is movably supported along the door rail 20, as shown in FIG.

The structure of the hanger 72 will be described in detail with reference to FIG. FIG. 3A is a front view of the hanger 72 shown in FIGS. 1 and 2B, FIG. 3B is a side view of the hanger, and FIG. 3C is a bottom view of the hanger. is there. The hanger 72 is formed by bending a flat steel material into an L-shape, and as shown in FIGS. 3A and 3B, the side wall 72.
A through hole 72a through which a shaft 77 supporting the roller 74 is inserted is provided with a boss portion 60 of a block 60 described later.
An insertion hole 72b for inserting a and a through hole 72c for inserting the screw 63 supporting the block 60 are formed. On the other hand, as shown in FIG.
In e, a slit 72f for passing a bolt 68 for fixing the hanger 72 shown in FIG. 1 to the door 70 is formed.

As shown in FIGS. 2A and 2B,
The hanger 72 is provided with a drop prevention block 60 via a screw 63. The configuration of the block 60 will be described in detail with reference to FIG. FIG. 4 (A)
FIG. 4B is a front view of the block placed in an upright state, and FIG. 4B is a side view of the block. Block 60
Is made of resin or rubber having flexibility, and a hole 60b for inserting and fixing the screw 63 is formed slightly below the central portion. Further, a boss portion 60a protrudes above the hole 60b. The top 60c of the block 60 is rounded, while the lower end 60d on the left side in FIG. 4A is rounded (chamfered), while the lower end 60e on the right side has a corner. Have been.

Here, assembling of the suspension door is shown in FIG.
This will be described with reference to FIG. The hanger 72 has a roller 74 in advance.
Are attached by a shaft 77 (see FIG. 2B), and the block 60 is attached by screws 63 in a reclined state shown by a dashed line in FIG. 2A to form a hanger assembly. Here, the hanger assembly is first fixed to the door 70 side. That is, the bottle 68 is screwed into the screw hole 70a of the door 70 via the slit 72f of the hanger 72. Thereafter, as shown in FIG.
The door 70 is attached to the door rail 20 by placing the roller 74 attached to the door rail 20 on the rail portion 20 a of the door rail 20. Here, as shown in FIG. 2A, when the block 60 is lying on its side,
C3 between the door rail 20 and the roller 74
(The step difference between the top of the rail portion 20a and the lower end of the roller 74) c2, the roller 74 can be easily attached to the door rail 20.

After that, the head of the screw 63 shown in FIG. 2A is turned clockwise with a driver or the like, so that the block 60 lying down as shown by a dashed line is shown by a broken line in the figure. Stand up. When turning the screw 63, the lower end 60d on the left side is rounded so that it can be easily rotated. When the block 60 is in the upright state shown by the broken line in the figure, the boss portion 60a of the block 60 described above with reference to FIG. 4 has a through hole formed in the hanger 72 as shown in FIG. The block 60 is firmly fixed by being fitted into 72b. Also,
In this upright state, the lower end 60e on the right side of the block 60 in the drawing is angled, so that further rotation is prevented. In this embodiment, since the block 60 is attached to the hanger 72 in a lying state in advance, the block 60 is not lost at the time of construction.

As shown in FIG.
Is located immediately below the door rail 20 in the upright state, and the clearance c between the door rail 20 and the block 60 is
1 is formed so as to be smaller than the hook c2 of the roller 74.

Here, when the door 70 is displaced upward,
The top 60c of the block 60 contacts the lower end of the door rail 20, but the roller 74 does not come off the rail 20a because the allowance of the roller 74 remains as described above. That is, the door 70 is prevented from falling off the door rail 20 by vertically sandwiching the door rail 20 between the roller 74 and the block 60. In addition,
In the above description, only one hanger 72 is shown, but a hanger (not shown) is further attached to the door 70, and the door 70 is suspended by a pair of hangers.

[0016]

As described above, in the mechanism for preventing the hanging door from falling according to the first aspect, the door can be prevented from falling by the flexible block, so that the structure can be made strong and inexpensive. In addition, when the block is laid down, a relatively large gap is formed between the upper portion and the lower end of the door rail, so that the roller can be easily removed from the door rail, so that workability on site is high. Further, by turning the screw, the block can be turned from the lying state to the standing state, so that the workability is high. Further, the bottom wall side of the hanger in a recumbent state
The corner located at is chamfered, so block
It can be easily raised from the recumbent state.

In the hanging door falling prevention mechanism of the second aspect , the projection of the block fits into the recess formed in the hanger in the upright state, so that the upright state can be firmly maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hanging door according to an embodiment of the present invention.

FIG. 2A is a front view of a hanging door, and FIG.
(B) is a side view of the suspension door.

3 (A) is a front view of the hanger shown in FIG. 1, FIG. 3 (B) is a side view of the hanger, and FIG. 3 (C)
Is a bottom view of the hanger.

FIG. 4 (A) is a front view of the block placed in an upright state, and FIG. 4 (B) is a side view of the block.

FIG. 5 is a longitudinal sectional view of a hanging door according to the related art.

FIG. 6 is a perspective view of a hanging door according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Linear motor 12 Housing 12a Rail part 20 Door rail 20a Rail part 60 Block 60a Boss part (convex part) 60c Top part 60d, 60e Lower end part (bottom part) 63 Screw 70 Door 72 Hanger 72b Fitting hole (recess part) 72d Side wall 72e Bottom wall 74 Roller (guide unit)

Claims (2)

(57) [Claims] 1. An L-shaped hanger comprising a side wall and a bottom wall is fixed to an upper portion of a door body, and a guide portion provided on the hanger is hooked on a door rail with a vertical fitting, In a hanging door in which a door body suspended via the guide portion and the hanger moves along the door rail, the door rail is inserted into a through hole formed in a side wall of the hanger below the guide portion. A screw inserted in a transverse direction, and a flexible block which is screwed with the screw and held by the hanger, and which can be placed in an upright state or a recumbent state as the screw rotates. when a block is upright, between the lower end of the top portion and the door rail, the guide portion can be a slight clearance to prevent the falling off from the door rail, also when the block is lying, its Between the lower end of the upper and door rail, may remove the guide portion from the door rail, or a block that can be made relatively large gap
The block has a bottom portion in the upright state.
Abuts against the bottom wall of the hanger and at the bottom of the block
The corner located on the bottom wall side of the hanger when lying down
A mechanism for preventing the suspension door from dropping, being taken off . 2. A mechanism according to claim 1 , wherein a convex portion is formed on said block, and said convex portion engages with a concave portion formed on said hanger in an upright state.