JP2510620B2 - Garage door - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flip-up type garage door installed at a doorway of a garage.

[Background Art] As a flip-up type garage door, it has been used for a long time.
The one disclosed in Japanese Patent No. 53507 is provided. As shown in FIG. 5, the arm 2 is constructed by attaching the base end of the arm 2 to the shaft 4 pivotally attached to the upper end of the column 3.
And the door 1 is attached to the tip of the arm 2.
, The arm 2 is rotated downward as shown by a solid line to close the garage with the door 1 oriented vertically, and the arm 2 is rotated upward as shown by a chain line so that the door 1
The garage is released with the side facing. Further, one end of a spring body 5 formed of a gas spring or the like is connected to the support column 3 and the other end is connected to the arm 2, respectively, and the elastic force of the spring body 5 causes the shaft 4 to rotate the arm 2 upward. Arm 2 with light force
It is possible to easily perform the operation of rotating the door body to flip up the door body 1 to open the doorway of the garage.

However, in this case, when various weights are used as the door body 1 according to the size of the garage, if the weight of the door body 1 is too heavy for the spring force of the spring body 5, the arm 2 is moved. It becomes difficult to rotate the door body 1 upward to flip up the door body 1, and conversely, if the weight of the door body 1 is too light, the arm 2 rotates upward with a slight force to stabilize the door body 1. Then you will not be able to block the entrance to the garage. For this reason, various spring bodies 5 having a spring force adapted to the weight of the door body 1 must be prepared and used properly, and there is a problem that the number of types of parts increases and the cost increases.

[Object of the Invention] The present invention has been made in view of the above points, and provides a garage door that can be used by adapting a kind of spring body to door bodies of various weights. The purpose is.

DISCLOSURE OF THE INVENTION According to the present invention, however, the base end of the arm 2 having the door body 1 attached to its tip is fixed to the shaft 4 pivotally supported by the support column 3 so that the arm 2 is rotatable up and down. 2 is rotated downward to close the garage with the door body 1 oriented vertically, and the arm 2 is rotated upward to release the garage with the door body 1 oriented horizontally. In the garage door in which the spring body 5 is connected between the shaft 3 and the shaft 4 and the elastic force of the spring body 5 causes the shaft 4 to exert an urging force for rotating the arm 2 upward, the hollow pillar 3 The side portion 6a of the connecting body 6 that is formed in a U-shaped cross section while accommodating the base portion of the shaft 4 inside
The connecting body 6 is fixed to the shaft 4 through the base of the connecting body 6, and a plurality of connecting holes 7 are formed in each side piece 6a of the connecting body 6 at different distances from the shaft 4.
One of the connecting holes 7 formed on each side piece 6a forming a, 7b ...
A connecting pin 16 is installed between a, 7b, ..., And one end of the spring body 5 housed in the column 3 is connected to the connecting pin 16 between the side pieces 6a, and the spring body 5 is attached to the shaft 4 via the connecting body 6. Is formed by connecting the spring bodies 5 by selecting a plurality of connecting holes 7a, 7b ... Formed in the connecting body 6 and connecting the spring bodies 5 to each other. The spring force of the spring body 5 acting on the body 1 can be adjusted, and the present invention will be described in detail below with reference to examples.

The columns 3 are made of square tubular steel or the like, and are erected by embedding the lower end portions in the ground 10 on both sides of the entrance and exit of the garage. A fixed frame 11 is provided in the upper end of each of the columns 3.
Is attached, and the shaft 4 is pivotally mounted on the fixed frame 11 so as to be vertically rotatable in a horizontal arrangement, and one end of the shaft 4 is projected from the inner side surface of the support column 3. Further, as shown in FIG. 1, a connecting body 6 is fixed to the shaft 4 in the fixed frame 11. As shown in FIG. 3, the connecting body 6 is formed by bending a metal plate into a U-shaped cross section and providing side pieces 6a, 6a on both sides. One end of each side piece 6a is formed on each side piece 6a. The fitting holes 20 face each other, and at the other end, a plurality of connecting holes 7a, 7b ... At different distances from the fitting hole 20 are provided on each side piece 6a so as to face each other. By fitting the shaft 4 into the fitting hole 20, the connecting body 6 is fixed to the shaft 4 so as to project. On the other hand, as the spring body 5, for example, a gas spring can be used. The gas spring is formed of a cylinder 12 and a rod 13 which is biased by a gas pressure in the cylinder 12 in a protruding direction. A lower end portion of the rod 13 is fixed to a receiving member 14 fixed to a lower portion of the column 3. The spring body 5 is pivotally supported in the vertical direction so as to be connected to the support column 3.
Further, a connecting tool 15 is attached to the tip of the cylinder 12 of the spring body 5, and the connecting pin 16 passed through the connecting tool 15 is connected to the connecting hole 7.
The tip end of the cylinder 12 is attached to the connecting body 6 via the connecting tool 15 by rotatably passing through one of a, 7b. The connecting pin 16 is installed between the opposing connecting holes 7a, 7b ... of the both side pieces 6a of the connecting body 6, and the connecting tool 15 is connected to the connecting pin 16 between the both side pieces 6a of the connecting body 6. It has become. In this way, the spring body 5 is connected between the shaft 4 and the column 3 via the connecting body 6, and the spring body 5 applies a rotational biasing force to the shaft 4. An arm attachment 17 is fitted and fixed to the shaft 4 at a portion protruding from the column 3, and a base end portion of the arm 2 is fixedly coupled to the arm attachment 17. A door 1 is attached to the tip of the arm 2 as shown in FIG.
Reference numeral 18 in FIG. 2 denotes a grounding leg attached to the lower end of the door body 1.

In this case, as shown by the solid line in FIG.
By rotating the arm 2 downward so that the vertical direction is set, the entrance and exit of the garage can be closed. At this time, the elastic force of the spring body 5 is transmitted via the connecting body 6 to the shaft 4
The force acting on the shaft 4 to rotate the arm 2 in the direction of rotating the arm 2 upward acts on the shaft 4. Since the force is greater than the urging force, the state in which the door 1 closes the entrance and exit of the garage can be maintained when the arm 2 is rotated downward. Next, push up the door 1 with your hand,
The door body 1 is lifted by the pushing force of the hand and the spring biasing force of the spring body 5, and the connecting body 6 contacts the stopper 19 to stop the rotation of the shaft 4 until the state of FIG. 1 (a). The arm 2 is pivoted upward so that the door body 1 is turned sideways.
You can open the entrance of the garage in the state of the imaginary line in the figure. The operation of pushing up the door body 1 is performed by the spring body 5.
Since the spring biasing force of 1 acts as a force to push up the door body 1, it can be easily performed with a light force. Further, when the arm 2 is rotated upward so as to open the entrance of the garage, the rotational moment due to the weight of the door body 1 and the arm 2 is reduced, so that the stress applied to the spring body 5 is greater than the spring biasing force. Since the shaft 4 is not rotated so that the arm 2 moves downward, the door body 1 can maintain a state in which the doorway of the garage is opened.

Here, it is necessary to use various weights as the door body 1 according to the size of the garage, etc. When the heavy door body 1 is used, the spring force of the spring body 5 is insufficient and the door body 1 is A large force is required for the operation of pushing up from the solid line state of FIG. 2, and when the lighter door 1 is finally used, the spring force of the spring body 5 is too large and the state of the solid line of FIG. 2 is stably maintained. Can't do it. Therefore, in the present invention, when the heavy door 1 is used, the spring 5 is connected by selecting the connecting hole 7a provided at a distance from the shaft 4. When the spring body 5 is connected to the connection hole 7a provided at a distance from the shaft 4 as described above, the state of the connection body 6 when the arm 2 is moved downward and the door 1 closes the entrance and exit of the garage. As shown by the solid line in FIG. 4, the spring body 5 is in a largely compressed state, and a large elastic spring force is accumulated in the spring body 5, so that the entrance / exit of the garage is blocked. When the door body 1 is pushed up by hand, a large elastic spring force of the spring body 5 acts to lightly lift the door body 1 and rotate the arm 2 upward. When using the light door body 1, the spring body 5 is connected by selecting the connection hole 7c provided at a short distance from the shaft 4. When the spring body 5 is connected to the connection hole 7a provided at a short distance from the shaft 4 as described above, the compression degree of the spring body 5 is small and the spring body 5 is not so much as shown by the chain line in FIG. Since a large elastic spring force is not accumulated, the spring force acting on the door body 1 is not so large that the doorway of the garage can be stably held in a closed state. In this way, by selecting the connection holes 7a, 7b of the connecting body 6 for connecting the spring body 5 to the shaft 4, the spring force of the spring body 5 with respect to the door body 1 can be adjusted, and various weights can be obtained. Since a kind of spring body 5 can be applied to the door body 1, the need to prepare and properly use the spring body 5 having a different spring force according to the weight of the door body 1 is eliminated. It is a thing.

[Advantages of the Invention] As described above, in the present invention, a plurality of connecting holes having different distances from the shaft are formed in the connecting body fixed to the shaft.
Since one end of the spring body is connected to one of the connecting holes and the spring body is connected to the shaft via the connecting body, the degree of compression of the spring body changes according to the connecting hole to be selected, and the door body is formed. The spring force to act can be adjusted according to the weight of the door body,
Since a kind of spring body can be adapted to door bodies of various weights, it is not necessary to prepare and properly use spring bodies of various spring forces.
Also, the base of the shaft is housed in the hollow column, and the base is fixed to the shaft by passing the base of the shaft to each side piece of the connector formed in a U-shaped cross section. A plurality of connecting holes with different distances are formed, and a connecting pin is installed between any one of the connecting holes provided on each side piece, and one end of the spring body housed in the column is used as a connecting pin between the side pieces. Since the spring body is connected to the shaft through the connecting body through the connection body, the shaft, the connecting body, and the spring body can be housed in the strut to form a compact body. The spring body is fixed at two positions in the longitudinal direction of the shaft, and the spring body is connected to the connecting pin between the side pieces on both sides by fixing to the shaft. It can be connected without being biased, and the biasing force of the spring body Stably axially through the connecting body it is capable of reliably convey.

[Brief description of drawings]

1 (a), (b) and (c) are a front sectional view, a side sectional view and a plan view showing a part of an embodiment of the present invention, and FIG. 2 is a reduced front view showing the whole of the same. Drawings (a), (b), and (c) are a front view, a side view, and a sectional view taken along the line AA of the above-mentioned connecting body, Fig. 4 is a partial front view of the same, and Fig. 5 is a reduced front view of a conventional example. It is a figure. 1 is a door, 1 is an arm, 3 is a column, 4 is a shaft, 5 is a spring, 6 is a connecting body, 6a is a side piece, 7a and 7b are connecting holes, and 16 is a connecting pin.

Claims (1)

(57) [Claims] 1. A base body of an arm having a door attached to a tip end thereof is fixed to a shaft pivotally supported on a support so that the arm can be vertically rotated, and the arm is pivoted downward to vertically move the door body. The garage is closed in the state where it is directed toward the door and the arm is rotated upward to release the garage when the door is directed in the horizontal direction. In a garage door configured to exert an urging force for rotating an arm upward by a generated force, a base of the shaft is housed in a hollow strut, and each side piece of a connecting body formed in a U-shaped cross section. Fixing the connecting body to the shaft through the base of the shaft, forming a plurality of connecting holes on each side piece of the connecting body with different distances from the shaft, and connecting pins between any one of the connecting holes provided on each side piece. The one end of the spring body housed in the column is connected to the connecting pin between the side pieces. Garage doors were characterized by comprising connecting the spring member to the shaft through the coupling body.