JP2866506B2 - Garage door opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garage door opening / closing device which opens a garage by lifting a door body and closes the garage by lowering and rotating the door body. However,
The present invention relates to a technique for preventing a lower end of a door body from swinging out of a garage and, in such a case, simplifying a configuration to improve durability.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 2-1199 shown in FIG.
In the garage door opening / closing device in which the door body 8 is flipped up and rotated to open as in JP-A-9, the bracket 6 is mounted on the support column 1 by protruding, and the first arm 2 is rotated on the support column 1. The second arm 3 is pivotally connected to the first arm 2 via a long hole L so as to be freely rotatable.
Is inserted into a guide groove 7 formed in the bracket 6 to prevent the lower end of the door 8 from swinging out of the garage when the door 8 is flipped up and rotated. is there.

[0003]

However, in such a structure, the bracket 6 protrudes from the support column 1, the guide groove 7 is formed in the bracket 6, and the first arm 2 is also used for sliding. When the door body 8 is flipped up and rotated, the bracket 6 protrudes from the support column 1 to reduce the appearance,
In addition, there is a problem that the slide configuration is large and the durability is low.

The present invention has been made in view of such a problem, and an object of the present invention is to prevent the lower end of the door from swinging out of the garage when the door is opened and closed. The lower end of the body can be lifted and lowered almost straight along the pillars to open and close, and even if there are other objects near the outside of the door, the door can be easily opened and closed, and the space can be reduced, In addition, there is a need to provide a garage door opening / closing device in which a link mechanism for doing so does not stand out, does not lower the appearance, and can improve the durability by reducing the slide structure. is there.

[0005]

According to the garage door opening / closing apparatus of the present invention, a first arm 2 is pivotally attached to an upper end of a column 1 and a link 4 is pivotally mounted to an upper end of the column 1. A second arm 3, which is freely pivotally supported and is substantially parallel to the first arm 2, is rotatably supported by a distal end of the link 4 and is provided with a guide groove 7 in a bracket 6 attached to a base end of the first arm 2. Is formed, a guide pin 5 is formed in an intermediate portion of the link 4, the guide pin 5 is slidably inserted into the guide groove 7, and the distal end portions of the first arm 2 and the second arm 3 are rotated by the door body 8. It is characterized by being provided with a holding means which is freely pivotally supported and holds the door body 8 upright when the door body 8 is raised and rotated.

[0006]

As described above, the first arm 2 is pivotally connected to the upper end of the column 1 so as to be freely rotatable, and the link 4 is pivotally supported to the upper end of the column 1 so as to be substantially parallel to the first arm 2. Second arm 3
Are rotatably supported at the distal end of the link 4, a guide groove 7 is formed in a bracket 6 attached to a base end of the first arm 2, and a guide pin 5 is formed in an intermediate portion of the link 4. The pin 5 is slidably inserted into the guide groove 7, and the distal ends of the first arm 2 and the second arm 3 are pivotally supported by the door body 8. By providing holding means for holding the body 8 upright, the first arm 2, the second arm 3, the door body 8 portion to which the distal ends of the two arms 2, 3 are pivotally mounted, and the two arms 2, 3 The base end and the link 4 constitute a quadruple link mechanism, so that when the door body 8 is flipped up and turned, the lower end of the door body 8 is prevented from swinging outward, Moreover, the bracket 6 is attached to the first arm 2 side, and the bracket 6 is To avoid reducing the appearance and listening projected, and the slide arrangement is also the guide pin 5 and the guide grooves 7
In this case, the configuration may be simplified, and the durability may be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the garage door opening / closing device of the present invention, a bracket 6 is attached to the lower end of a first arm 2 attached to the upper end of a left and right support 1.
An arm 2 is pivotally attached to the upper end of the support column 1 by a pin 9. The link 4 is a pin 1 at the upper end of the column 1.
It is pivotally supported at 0. A second arm 3 substantially parallel to the first arm 2 is rotatably supported by a pin 11 at the tip of the link 4. A guide groove 7 is formed in a bracket 6 attached to the base end of the first arm 2. A guide pin 5 is formed at an intermediate portion of the link 4. The guide pin 5 is slidably inserted into the guide groove 7.
The distal ends of the first arm 2 and the second arm 3 are pivotally supported on the door body 8 by pins 12. A holding arm 13 is projected from the pin 9, and the leading end of the holding arm 13 reduces the opening / closing power of the door body 8 and prevents the door body 8 from being further opened and rotated at the upper open limit position. A gas spring 14 also serving as a holding means is connected.

As described above, the first arm 2 is pivotally connected to the upper end of the column 1 so as to be rotatable, and the link 4 is pivotally supported to the upper end of the column 1 so as to be substantially parallel to the first arm 2. The second arm 3 is rotatably supported at the distal end of the link 4, a guide groove 7 is formed in a bracket 6 attached to the base end of the first arm 2, and a guide pin 5 is provided at an intermediate portion of the link 4. Are formed, the guide pin 5 is slidably inserted into the guide groove 7, and the distal ends of the first arm 2 and the second arm 3 are pivotally supported by the door body 8, and the door body 8 is raised and rotated. By providing holding means for standing and holding the door body 8 when it is made to operate, the first arm 2, the second arm 3, the door body 8 portion to which the distal ends of these two arms 2 and 3 are pivotally connected, and both The base end portions of the arms 2 and 3 and the link 4 constitute a quadruple link mechanism. In the case of turning up, the lower end of the door body 8 is prevented from swinging outward, and the bracket 6 is attached to the first arm 2 side. It is possible to avoid protruding and deteriorating the appearance, and to use a guide pin 5 for the slide structure.
And the guide groove 7, which simplifies the configuration and improves the durability. The gas spring 14 supports the weight of the door 8, the first arm 2, the second arm 3, and the like during the upward rotation of the door 8 and the downward rotation of the door 8,
The door 8 can be manually opened and closed lightly. When the door body 8 is in the maximum open position, its weight is supported in the maximum extension state of the gas spring 14 at a position slightly behind the center of rotation with respect to the column 1. In such a case, the maximum opening state of the door body 8 may be held by a mechanical stopper such as a projection to prevent the door body 8 from opening further backward. As described above, the configuration for holding the opening posture of the door body 8 is generally referred to as a holding unit, but the configuration can be variously changed.

As shown in FIGS. 3 and 9, the guide groove 7 is formed with an oblique guide groove 7a for guiding the guide pin 5 obliquely upward in its maximum open position. When the guide pin 5 is inserted, even if an external force is unexpectedly applied to the first arm 2 from the direction of arrow A in FIG. 3 (the direction in which the car exits the garage), as shown in FIG. When a force is applied in the direction of arrow a, the guide pin 5 is received by the oblique guide edge 7a and the closing of the door 8 is suppressed. When the user pulls the front end of the door body 8 downward in the direction of arrow B, the guide pin 5 is pushed through the link 4, and the guide pin 5 rolls along the guide groove 7, and the door body 8 is moved. It is to be smoothly lowered and rotated.

[0010]

As described above, according to the present invention, the first arm is pivotally connected to the upper end of the column, and the link is pivotally supported to the upper end of the column. A parallel second arm is pivotally supported on the distal end of the link so as to be freely rotatable, a guide groove is formed in a bracket attached to a base end of the first arm, and a guide pin is formed in an intermediate portion of the link. Are slidably inserted into the guide grooves, the distal ends of the first arm and the second arm are pivotally supported by the door body, and hold the door body upright when the door body is raised and rotated. The first arm, the second arm, the door body portion to which the distal ends of these two arms are pivotally connected, and the base end portions and the links of both arms constitute a quadruple link mechanism. When the body is flipped up and rotated, the lower end of the door is not swung out. In addition, the bracket is attached to the first arm side, so that the bracket does not protrude greatly from the support column to reduce the appearance, and only one slide configuration is required. There is an advantage that can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a closed state according to an embodiment of the present invention.

FIG. 2 is a schematic side view in the middle of opening of the same.

FIG. 3 is a side view of the same open state.

FIG. 4 is a partially cut-away detailed side view of the same.

FIG. 5 is a partial detailed plan view of the same.

FIG. 6 is a partially cutaway front view of the same.

FIG. 7 is a partially enlarged side view of the above-mentioned closed state.

FIG. 8 is a partially enlarged side view of the same in the middle of opening.

FIG. 9 is a partially enlarged side view of the above open state.

FIG. 10 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 2 First arm 3 Second arm 4 Link 5 Guide pin 6 Bracket 7 Guide groove 8 Door body

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Takahiro Nakamura 1048 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP-A-2-54083 (JP, A) (58) Fields investigated ( Int.Cl. ⁶ , DB name) E05D 15/04 E06B 11/02

Claims (1)

(57) [Claims] A first arm rotatably pivotally attached to an upper end of the support, a link rotatably supported by an upper end of the support, and a second arm substantially parallel to the first arm is connected to the link. A guide groove is formed in a bracket attached to the base end of the first arm, and a guide pin is formed in an intermediate portion of the link, and the guide pin is slidably inserted into the guide groove. The distal ends of the first arm and the second arm are rotatably supported by the door body, and holding means is provided for holding the door body upright when the door body is raised and rotated. Garage door opening and closing device.