JP2544780B2 - Garage door - Google Patents

Description

TECHNICAL FIELD The present invention relates to a structure of a garage door provided at a doorway of a garage.

[Prior Art] In the conventional garage door, as shown in FIG. 4, one end of the arm 2 is connected to both sides of the door body 1, and the arm 2 is attached to the upper end of the support column 3 whose lower end is buried in the ground. The other end is rotatably connected by a rotary shaft 4, and is closed when the door body 1 is oriented in the vertical direction, and is opened when the door body 1 is rotated and oriented horizontally in the upper direction. It was

[Problems to be Solved by the Invention] In such a conventional example, in order to manually open and close the door body 1, when opening the door body 1, the heavy door body 1 must be lifted and opened, and also when closing. When the hand is released, there is a risk that the door body 1 will close vigorously due to its own weight, so there is a problem that the door body 1 must be supported and closed. In order to improve this problem, an electric drive using a motor is also provided, but in the case of the electric drive, if the drive mechanism fails, the door body 1 does not move manually and cannot be opened / closed. There was a problem.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a garage door that can be opened and closed electrically without labor and can be opened and closed manually when a mechanism fails. There is.

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the garage door of the present invention, the worm wheel 5 is rotatably mounted on the rotating shaft 4 rotatably mounted on the upper portion of the pillar 3, and A worm 7 rotatably driven by a motor 6 disposed on the worm wheel 5 meshes with the worm wheel 5 to connect the drive rod mounted on the rotary shaft 4 to the arm 2, and to connect the drive rod 8 and the worm wheel 5 to each other.
The connecting pin 9 was detachably attached between and.

[Operation] When the drive pin 8 and the worm wheel 5 are connected by inserting the connecting pin 9, power is transmitted from the motor 6 to the worm 7, the worm wheel 5, the drive rod 8 and the arm 2 in this order, so that the door body 1 is electrically driven. It can be opened and closed, and by removing the connecting pin 9, the drive rod 8 freely rotates with respect to the worm wheel 5, and the door 1 can be opened and closed manually.

[Embodiment] Reference numeral 3 denotes a column having a hollow inside, and a pair of columns 3 are erected so as to face each other as shown in FIG. Reference numeral 1 denotes a door, which is formed in a lattice shape. Reference numeral 2 denotes an arm, which is composed of an upper arm 2a, a lower arm 2b, and a connecting portion 2c. One end of the upper arm 2 a is connected to the upper ends on both sides of the door 1, and the upper arm 2 a is orthogonal to the door 1. One end of the lower arm 2b is connected to the middle part on both sides of the door body 1, and the other end of the upper arm 2a and the other end of the lower arm 2b are integrated by a connecting portion 2c. As shown in FIG.
A rotary shaft 4 is rotatably mounted on the upper part of the inside, and a worm wheel 5 is rotatably mounted on the rotary shaft 4. The drive shaft is vertically arranged so as to be orthogonal to the rotary shaft 4.
10 are arranged, and the upper and lower ends of the drive shaft 10 are rotatably supported by bearings 11. A motor 6 with a speed reducer is arranged below the drive shaft 10, and an output shaft 12 of the motor 6 is connected to the drive shaft 10. The drive shaft 10 is integrally provided with a worm 7, and the worm 7 and the worm wheel 5 are meshed with each other. A drive rod 8 is arranged on the rotary shaft 4 in parallel with the worm wheel 5, and the drive rod 8 is fixed to the rotary shaft 4. Pin holes on the drive rod 8 and worm wheel 5
13 and 14 are provided, and the connecting pin 9 is attached to the pin holes 13 and 14 so as to be freely inserted and removed. The rotary shaft 4 integrated with the drive rod 8
The connecting portion 2c of the arm 2 is connected to the outside of the column 3 so that the arm 2 is driven integrally with the drive rod 8.

Then, when the motor 6 is driven from the closed state where the door body 1 is oriented in the vertical direction, the arm 2 is driven via the drive shaft 10, the worm 7, the worm wheel 5, the drive rod 8 and the rotary shaft 4, and the door body 1 Is driven upward, and the door body 1 is opened so as to face upward in the lateral direction. When the motor 6 is driven in the opposite direction from the open state in which the door body 1 faces sideways, the power is transmitted in the reverse rotation to the above, and the door body 1 can be closed so as to face the vertical direction. Further, when the connecting pin 9 is removed, the drive rod 8 can freely rotate with respect to the worm wheel 5, can be separated from the transmission system of the motor 6, and the door 1 can be opened and closed manually. When the door 1 is designed to be opened and closed only manually
Make sure that the gas spring 15 is inscribed inside the
When 15 and the connecting hole 16 of the drive rod 8 are connected, the opening and closing can be assisted by the gas spring 15 when the door 1 is manually opened and closed.
Can be opened lightly and closed slowly.

FIG. 3 shows another embodiment. Rotor shaft bearing 17,1
It is rotatably supported by 8 and the drive rod 8 is bearing 19
It is rotatably attached to the rotating shaft 4 via. The drive rod 8 and the worm wheel 5 are connected by a connecting pin 9 which can be inserted and removed freely. The drive rod 8 is connected to the arm 2
2c are connected. In the case of this embodiment, the same operation as that of the above embodiment is performed.

[Advantages of the Invention] As described above, according to the present invention, a worm wheel is rotatably mounted on a rotary shaft that is rotatably mounted on an upper portion of a column, and a worm that is rotationally driven by a motor arranged in the column is the worm. The drive rod attached to the wheel and connected to the rotating shaft is connected to the arm, and the connecting pin is attached between the drive rod and the worm wheel so that it can be inserted and removed freely. Drive the door body electrically through the worm, worm wheel, and drive rod to open and close the door body without the need for labor, and by removing the connecting pin The rod can be freely rotated with respect to the worm wheel to open and close the door manually, so that it can be used even if the electric mechanism fails.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are a plan sectional view and a front sectional view showing the internal structure of the same column, and FIG. 3 (a). (B) is a plan sectional view and a front sectional view showing another embodiment of the above, and FIG. 4 is a perspective view of a conventional example, in which 1 is a door body, 2 is an arm, 3 is a column, and 4 is a rotating shaft. 5 is a worm wheel, 6 is a motor, 7 is a worm, 8 is a drive rod, and 9 is a connecting pin.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 1-256691 (JP, A) Actual Kai 1-157895 (JP, U) Actual Kohei 7-21836 (JP, Y2)

Claims (1)

(57) [Claims] 1. One end of an arm is connected to each side of a door body,
In the garage door, the other end of each arm is rotatably attached to the strut, and the state in which the door body is oriented vertically is closed, and the state in which the door body is oriented upward and sideways is open. A worm wheel is rotatably mounted on the rotary shaft that is rotatably mounted on the upper part of the worm, and a worm that is rotatably driven by a motor installed in the support is meshed with the worm wheel, and a drive rod is mounted on the rotary shaft. Connect with the above arm,
A garage door that has a connecting pin that can be inserted and removed between the drive rod and the worm wheel.