JP3242191B2 - Lift door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door used for a garage entrance, a gate and the like.

[0002]

2. Description of the Related Art Conventionally, a so-called shutter is generally used as a door at the entrance of a garage. In this device, a take-up drum is arranged above the opening, and a bendable shutter body for opening and closing the opening is mounted on the take-up drum so as to take up and rewind freely.

[0003]

However, in the conventional example, since the shutter body is wound around the winding drum, a space is required for winding the shutter body, and the height of the shutter body is increased. There is a problem of becoming high. The present invention has been made in view of the above problems, and an object of the present invention is to fold a folding door body such that each door panel faces a horizontal direction above the opening when the opening is opened. It is an object of the present invention to provide an ascending / descending door whose height is not increased more than necessary and the folded door body protrudes like an eave and has a good appearance.

[0004]

In order to achieve the above object, a lift door according to the present invention comprises four door panels 1a, 1b, 1c,
Door panels that line up 1d vertically and are next to each other
The upper and lower ends of the screws 1a, 1b, 1c, 1d are hinged to each other.
a, 2b, 2c, rotatably connected and folded up and down
A pillar 4 that forms a freely foldable door body A and is erected on the left and right.
The above-mentioned folding door body A is disposed between the
The upper end of the door panel 1a located at the top is
Connected rotatably with a flat shaft, the bottom of the folding door A
The lower end of the door panel 1d is connected to the elevating means that moves up and down
And door panels 1a, 1b, 1c, 1d of the folding door body A
For rotatably connecting to each other by hinges 2a, 2b, 2c
Side and the lower end of the lowermost door panel 1d.
With existing guide rollers 15a, 15b, 15c, 15d.
Guide rails 12 attached to the inner surfaces of the left and right columns 4
And the guide rollers 15a, 15b, 15c, 15d
Arranged to run freely, when folding door body A is folded up
The first guide roller 15a and the third guide from the top
Roller 15c breaks out from guide rail 12
An opening 19 is provided in the guide rail 12, and
The second guide roller 15b from the top fits in the upper end.
And the third door panel 1 from the top
A lock pin 18 protruding sideways is provided near the upper end of c.
The second guide roller 15b from the top fits in the roller.
The third door panel 1c from the top in the state where the door panel 1c is accommodated in the groove 12a.
When the lock pin 18 rotates upward and becomes horizontal
Is provided above the guide rail 12.
It is characterized by comprising.

[0005]

According to the above construction , the lowermost door panel is moved by the elevating means.
By lowering the lower end of the door 1d, the folding door A
Opening between the left and right columns 4 by folding or unfolding
Can be opened and closed. When the folding door body A is folded, each door panel 1a, 1b, 1c, 1d can be folded so as to be horizontal above the opening, and the height upward is not increased more than necessary. In addition, the folded door body A protrudes like an eave to improve the appearance. Folding door body A
Guide roller 15 when folding or unfolding
a, 15b, 15c, 15d are along the guide rail 12
Rolls up and down smoothly and the first from the top and
The third guide rollers 15a and 15c are
From the door, the folding of the folding door body A
Miya deployment is performed smoothly. In addition, folding door body A
In the folded state, the second guide roller 15b from the top
Fits in the roller receiving groove 12a and the lock pin 18
Are fitted in the lock grooves 29, and are in a folded state.
In the state, the second guide roller 15b is in the roller receiving groove 12
a so that the door panels 1a, 1
The horizontal state of b, 1c, 1d is maintained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
A horizontal frame 5 is erected between the upper ends of the left and right columns 4. The opening surrounded by the pair of columns 4 and the horizontal frame 5 is openable and closable by a folding door body A that can be folded vertically. This folding door body A includes four door panels 1a, 1b, 1c, 1d which are long in the horizontal direction and hinges 2a, 2b, 2
linked Ru is freely folding in the vertical direction Thea at c. 4
Each hinge 2 between the door panels 1a, 1b, 1c, 1d has a structure in which the hinges are sequentially folded in reverse. That is, the upper hinge 2a and the lower hinge 2c are bent in the same direction, and the middle hinge 2b is bent in the opposite direction to the hinges 2a and 2c.

[0007] Shaft mounting brackets 7 are mounted on the left and right of the upper end of the uppermost door panel 1a of the folding door body A disposed between the left and right columns 4, respectively.
Is attached. A mounting plate 9 and a rail member 10 are mounted on the inner surfaces of the left and right columns 4, and an auxiliary plate 11 is mounted on the upper portion of the mounting plate 9, so that the mounting plate 9 reaches the lower end of the rail member 10. Guide rail 12
Is provided. The pivot 8 at the upper end of the uppermost door panel 1a
Is rotatably mounted by penetrating through the mounting plate 9 and the auxiliary plate 11, and is supported by bearings as necessary. The position pivotally supported by the pivot shaft 8 is set to a position shifted laterally with respect to the center of the guide rail 12.

[0008] Roller mounting brackets 13 are disposed at the left and right ends of the hinges 2a, 2b, 2c and at the left and right lower ends of the lowermost door panel 1d. The roller mounting brackets 13 are connected to the door panels 1a, 1b, 1c, 1d. Is attached to each. A roller shaft 14 is mounted on each of the roller mounting brackets 13, and a guide roller 15 is rotatably mounted on an end of the roller shaft 14. The guide rollers 15 are guide rollers 15a, 15b, 15c and 15d in order from the top, and are inserted into the guide rails 12 so as to be able to run freely.

The upper end of the guide rail 12 is curved in a hook shape in a direction in which the pivot 8 is deflected, and a roller receiving portion 12a is provided at the upper end of the hook-shaped curved portion. A roller shaft 16 is mounted on the mounting plate 9 at a position below the roller accommodating portion 12a, and a kick-out roller 17 is rotatably mounted on the tip of the roller shaft 16.
The kick-out roller 17 is provided at a position where it can hit the side edge of the door panel 1. A lock pin 18 is provided on the roller mounting bracket 13 provided near the hinge 2b so as to protrude laterally.
The auxiliary plate 11 is provided with a lock groove 29 into which the lock pin 18 is fitted. Guide rail 12
Is provided with a bend opening 19 for opening the pivot shaft 8 in a direction opposite to the deviated direction, and a bend guide 20 is provided below the bend opening 19.

A rotary shaft 21 is installed horizontally in the horizontal frame 6, and one end of the rotary shaft 21 is supported by a bearing 22.
A motor 23 is disposed at the other end of the rotating shaft 21, and the motor 23 is connected to the other end of the rotating shaft 21 via a speed reducer 24.
1 can be driven to rotate. A torsion coil spring 30 is mounted on the rotating shaft 21 to reduce the force required to raise the folding door A. Sprockets 25 are respectively mounted near both ends of the rotating shaft 21, and a pulley mounting bracket 26 is mounted on the lower inner surface of the column 4, and a pulley 27 is attached to the pulley mounting bracket 26.
Is rotatably mounted. Endless endless cable 28
In the case of this embodiment, as shown in FIG. 9A, the upper half of the circumference is a chain 28a and the remaining lower half is a wire 28a.
b, the upper part of the endless cable 28 is
5 and the lower part of the endless cable 28 is hung on the pulley 26, and the endless cable 28 is inserted near the guide rail 12. Even if the endless cable 28 is a chain 28a over the entire circumference as shown in FIG.
The wire 28b may be provided over the entire circumference as shown in FIG. In the case of the chain 28a, it is hung on the sprocket both up and down, and in the case of the wire 28b, it is hung on the pulley both up and down. A cable connecting portion 31 is provided at the tip of the roller shaft 14 to which the lowermost guide roller 15d is attached, and the endless cable 28 is connected to the cable connecting portion 31.
The lower end of the lowermost door panel 1d can be moved up and down by driving the door panel 8.

Next, the operation of the lift door of the present invention configured as described above will be described. 1 and 4 show a state in which the folding door body A is deployed and the opening is closed. From this state, the motor 23
Is driven to raise the lower end of the door panel 1d via the endless cable 28, the folding door body A is folded and the opening is opened. When the motor 23 is driven in the reverse direction from the open state to lower the door panel 1d via the endless cable 28,
The opening of the folding door body A is closed and the opening is closed.

When the lower end of the door panel 1a is raised from the state shown in FIG. 4, the hinge 2a is bent and the guide roller 15 is bent.
a protrudes from the opening 19. At this time, since the pivot shaft 8 is deviated to one side with respect to the center of the guide rail 12, the angle α shown in FIG. 10A becomes 180 ° or less, and the guide roller 15 a jumps out from the opening 19. Bend. When the guide roller 15a comes out, the door panels 1a and 1b bend in a V shape, and the door panels 1a and 1b are bent.
By the time 1b approaches horizontal, the door panels 1a, 1b, 1c,
1d rises. At this time, the guide roller 15b does not come out of the opening 19 because the hinge 2b is configured to be bent reversely to the hinge 2a. When the guide roller 15b moves to the upper end of the guide rail 12, as shown in FIG.
When the door panel 1d further rises in this state, the hinge 2c is broken, and the guide roller 15c shown in FIG.
At this time, since the guide roller 15b is accommodated in the roller accommodating portion 12a, the angle β is 180 ° or less as shown in FIG. 10B, and the guide roller 15c is bent so as to jump out. At this time, since the bend guide 20 is provided below the bend opening 19, the guide roller 15c is guided and smoothly goes out. When the guide roller 15c goes outside, the door panels 1c and 1d bend in a U-shape, and the door panels 1c and 1d approach horizontal and stop. Door panel 1
When c approaches horizontal, the lock pin 18 is
9 is fitted. When the lock pin 18 is fitted in the lock groove 29, the guide roller 15c is locked by its own weight so as not to fall out of the roller receiving portion 12a, and the door panels 1a, 1b, 1c, 1d are horizontally moved as shown in FIG. It is kept close. When the door panel 1d is moved to the top and opened, the motor 23 is stopped and the open state is maintained. As shown in FIG. 11, when the motor is opened or closed, a dog 33 is attached to the endless cable 28 such as a chain 28a, and the limit switch 34 detects the dog 33 to turn the motor on and off. The folding door body A is opened by rotating the rotating shaft 21 by the motor 23. At this time, since the torsion coil spring 30 is mounted on the rotating shaft 21, the weight of the folding door body A is reduced and the folding door body A is folded. The door A can be opened with a light force.

When the motor 23 is driven in the reverse direction from the state shown in FIG. 6 to lower the door panel 1d, the opening is closed. When lowering the door panel 1d, the door panel 1
The lock pins 18 come out of the lock grooves 29 by rotating the door panel 1c by rotating the c and 1d. When the door panels 1c and 1d are deployed in a substantially planar shape, the guide roller 15c starts to enter the guide rail 12 from the opening 19 as shown in FIG. 5, and the door panel 1c is kicked out as shown in FIG. 17 and door panel 1d
Is pulled downward, the guide roller 15b comes out of the roller receiving portion 12a due to the reaction force when it hits the kick roller 17, and the guide rollers 15b and 15c enter the guide rail 12. By further lowering from this state, the door panels 1a and 1b are developed in a plane and the openings are closed. When the opening is closed by the folding door A, the motor 23 is stopped by the limit switch 34.

[0014]

According to the present invention, four door panels are provided as described above.
On top of the door panels, which are arranged vertically and vertically adjacent
The end and lower end are rotatably connected by hinges and folded up and down
A pillar that forms a folding door that can be freely folded and that stands upright on the left and right
The above-mentioned folding door is disposed between the top and the top of the folding door.
The upper end of the door panel located at the top of the column with a horizontal axis
Rotatably connected to the bottom door panel of the folding door
Since the lower end is connected to the lifting means that moves up and down,
By lowering the lower end of the lowermost door panel with
Fold and unfold the door body
That can open and close the opening between the columns,
Each door panel is horizontal above the opening when the body is folded
Can be folded to become more than necessary
The height of the
The foldable door body protrudes like an eave to improve the appearance
Yes, and the door panel of the folding door is hinged
The lower edge of the door panel at the side and the bottom of the part to be freely connected
A rotatable guide roller is attached to the side of the
Run the above guide roller on the guide rail provided on the inner side of
Arranged freely and when folding the door, 1
The third guide roller from the top and the third guide roller
A bend that protrudes from the guide rail is set on the guide rail.
The door is folded, so the folding door can be folded and unfolded
When the guide roller rolls along the guide rail
The first and third gas from the top
The idola enters and exits through the opening,
Folding doors can be folded and unfolded smoothly
And at the top of the guide rail the second from the top
A roller receiving section for the guide roller
Lock protruding laterally near the top edge of the third door panel
A pin is provided, and the second guide roller from the top
The third door panel from the top is placed upward in the groove
When the lock pin rotates,
The lock groove is provided above the guide rail, so the folding door
Is folded, and the second guide roller from the top is
Lock pin fits into the lock groove
The second guide in the folded state
The roller is locked so that it does not come out of the groove
Each door panel is maintained in a substantially horizontal state.

In the invention according to claim 2 of the present invention, a third guide roller from the top is provided below the bend opening.
There is a bend guide that guides you to jump out
So when you fold it, it will jump from the opening
The second guide roller is guided by the
It is folded in a mood.

[0016]

[0017]

[0018]

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view in which main parts of the above are enlarged.

FIG. 4 is a side view of the same.

FIG. 5 is a side view showing a state in which the folding door is opened halfway.

FIG. 6 is a side view showing a state in which the folding door is opened.

FIG. 7 is a side view showing an enlarged main part of the folding door body during folding.

FIG. 8 is a side view showing an enlarged main part in a state where the folding door body is folded.

FIGS. 9A, 9B, and 9C are schematic diagrams illustrating an endless cable.

FIGS. 10A and 10B are explanatory views illustrating a folded state of the above.

FIG. 11 is a front view showing a structure for stopping the motor of the above.

FIG. 12 is an explanatory view showing a state in which the folding door body is being developed.

[Explanation of symbols]

 A Folding door body 1 Door panel 2 Hinge 4 Prop 5 Side frame 12 Guide rail 15 Guide roller 21 Rotation axis 28 Endless cable

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takahiro Nakamura 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. Inventor Yukio Yamamura 1048 Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Works, Ltd. Inside (56) References JP-A-63-241297 (JP, A) JP-A-2-16282 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E06B 9/06 E06B 11/02

Claims (2)

(57) [Claims] 1. When four door panels are arranged vertically in parallel
The upper and lower ends of the door panels that are adjacent to each other are hinged
Folding door that can be freely rotated and connected to fold up and down
The above-mentioned folding door body between the pillars which form the body and stand upright
Of the door panel located at the top of the folding door
The upper end is rotatably connected to the upper part of the column with a horizontal shaft,
Raise and lower the lower edge of the door panel at the bottom of the folding door
Connected to the lifting means, hinged the door panel of the folding door
Door panel at the side and bottom of the part that is connected rotatably
A rotatable guide roller is attached to the side of the lower end of the
Guide rails on the inner surface of the
The door is arranged to run freely and the folding door is folded up.
1st guide roller from the top and 3rd guide row from the top
The lane jumps out from the guide rail.
At the upper end of the guide rail and the second guide from the top.
A third roller from the top is provided to accommodate the roller
Lock pin protruding sideways near the upper end of the door panel
And the second guide roller from the top
The third door panel from the top pivots upwards
Lock groove into which the lock pin fits when it is horizontal
Characterized by being provided above the guide rail . 2. A third guy from the top below the bend.
A folding guide that guides the droller out
Lift doors according to claim 1, characterized by comprising providing.