JP2509778B2 - Flip-up door - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flip-up type door which is mainly provided at a doorway of a garage and is opened and closed by pivoting in a vertical direction.

[0002]

2. Description of the Related Art In a conventional flip-up door, one end of an arm is pivotally supported on a column, a door is attached to the tip of the arm, a spring device for exerting an upward torque is provided on the arm, and the pivotal support of the column is provided. An arm that pivots about the center holds the door open in a substantially horizontal state above a closed state where it stands upright on the ground. (For example, Japanese Examined Patent Publication No. 57-53507, Sho 62-79095
(Gazette, JP-A-61-151393, JP-A-63-102895)

Two upper and lower arms are mounted between the column and the door so that the inclination angle of the door can be changed by the relative movement of the two arms in the axial direction, and the two arms can be changed depending on the rotational position of the door. An adjustment mechanism for moving the arm of the door is installed, and the door rises while keeping the door almost upright, and the inclination angle is slightly delayed according to the rotation of the door so that the door moves horizontally after reaching the high place. , A flip-up mechanism that suppresses the amount of protrusion of the locus under the door has also been devised. (For example, JP-A-62-133
(No. 283, No. 63-91699, No. 2-27499)

[0004]

In the former flip-up type door, a single arm is pivotally mounted between the column and the upper part of the door, and is pivoted up and down around the support portion of the column, so that it is mounted. Although it is easy and there are few failures, there is a problem that the locus of the lower end of the door largely extends to the road side when the door is pivoted up and down because the door is pivoted open upward from the closed state of standing upright on the ground.
As a result, a door overhang space (site) is required on the road side, and there is a problem that the operator must move when opening and closing the door.

The latter flip-up door has a complicated link mechanism and requires a considerable amount of skill for installation. If the door does not move along a proper path, the link mechanism will be heavily loaded and damaged. There is also a possibility that the link mechanism may be out of order and the door may be prevented from smoothly rotating and moving up and down. Also, if the arm interval is widened and the link member is made longer, the load on the adjustment mechanism associated with the opening and closing operation can be lightened, but the mechanism on the strut side becomes larger and the sliding part and the shaft support part are exposed to the outside, so it is safe. There was also a problem above. Therefore, an object of the present invention is to provide a flip-up type door that can be rotated and lifted up and down with a stable operating force all the time, and has no erroneous operation and the protrusion of the door to the road side is extremely small.

[0006]

In order to achieve the above object, the flip-up door of the present invention is provided with a support portion on the front surface of the support column, and the support portion is rotatable in the range from the front to the upper side. Auxiliary arm is pivotally attached, and a supporting arm that rotates in the same direction as the auxiliary arm is supported below the pivoting portion, and a main arm that rotates while avoiding the auxiliary arm is attached to the supporting arm. The tops of the arms are almost horizontally aligned at the top dead center, and are aligned substantially vertically at the bottom dead center, and the arm tips are pivotally attached to the doors, respectively, and the doors are closed substantially vertically at the bottom dead center. ,
In addition, it can be held in a substantially horizontal open state at the top dead center.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a flip-up door according to the present invention will be described below with reference to the drawings of an embodiment. A front supporting member 3 of an entrance A is attached to a front surface 5a of a supporting column 5, and the supporting member 3 is attached to the supporting member 3 from the front. While supporting the auxiliary arm 1 which is rotatable in the range up to the upper side, the rear side 5b of the support column below the pivoting part.
, A supporting arm 4 that projects laterally from the side surface 5b and is rotatable in the same direction as the auxiliary arm 1 is mounted, and a main arm 2 that rotates while avoiding the auxiliary arm 1 is attached to the supporting arm 4. The front ends of the arms 1 and 2 substantially horizontally coincide with each other at the top dead center P1 and substantially vertically coincide with each other at the bottom dead center P2.
The front ends of the above are pivotally attached to the doors 6, respectively.

The support column 5 is in the shape of a rectangular tube, and the support portion 3 is attached to the top of the front surface 5a of the support column, and the support portion 13 is attached to the support side surface 5b below the mounting position of the support portion 3, and the support portion 13 is a side surface. A support arm 4 that projects laterally from 5b and rotates parallel to the side surface 5b is pivotally attached. The pillars 5 are mainly upright on the left and right of the garage entrance A, and the support arms 4 are the inner surfaces 5b of the pillars 5.
It is desirable to support.

The auxiliary arm 1 has joints 11, 11 at both ends of the auxiliary rod 1a.
12 is attached, and one joint 11 is pivotally attached to the supporting portion 3 of the front surface 5a of the column, and can be vertically rotated about the supporting portion 3 and extends forward from the supporting portion 3 and becomes substantially horizontal. Dead point P
It rotates in the range from 2 to top dead center P1 which stands almost upright. The main arm 2 is equipped with joints 21 and 22 at both ends of the main rod 2a, and one joint 21 is fixed to a support arm 4 projecting laterally from a side 5b of the support column, and a support 13 of the support arm 4 is used as a center for assistance. It rotates up and down in the same range as the arm 1.

The door 6 is formed in such a size as to prevent people from entering and exiting. Specifically, the door width H is larger than the inter-post width h standing upright to the left and right of the entrance A, and the door height t is the post. Height T
It is made smaller, and the auxiliary support 8 is attached to the upper end of the back side of the door 6.
The main support 9 is attached to a position below and further displaced to the left or right, and both support 8 and 9 are provided in a staggered manner in the vertical and horizontal directions. The auxiliary support 8 has a joint 12 for the auxiliary arm 1. And the joint 22 of the main arm 2 is attached to the main support 9, and the lower half of the entrance A is closed in the downward closed state.

FIG. 5 shows that the tip portion of the main arm 2 is curved until it reaches the upper portion of the auxiliary arm 1, and the side portion of the door 6 is shown in FIG.
The bag groove 16 opening toward the support 5 is provided in parallel with the door height t, and the auxiliary support 8 and the main support 9 are inserted into the bag groove 16,
Both supporting members 8 and 9 are appropriately separated and fixed, the tip of the auxiliary arm 1 is pivotally attached to the auxiliary bearing 8, and the curved tip of the main arm 2 is pivotally attached to the main bearing 9. Main arm 2 support 13
It is possible to attach the support arm 4 rearward from the rear surface 5c of the support column 5 and to pivotally support the supporting arm 4 on the supporting portion 13 so as to avoid the support column 5, or to mount it on the top of the support column 5. .

In FIG. 7, a biasing device S such as a spring or a damper is attached between the support arm 4 and the support 5, and the biasing device S appropriately cancels the descent moment when the door 6 is closed and lifted and when the door 6 is lifted and opened. Thus, the same purpose can be achieved even if the baffle device S is installed in the column 5 or provided outside the column 5.
It is also possible to mount it between the column 5 and the column 5, or between the auxiliary arm 1 and the column 5. It is also possible to provide a drive motor (not shown) inside the column 5 and rotate the support arm 4 supported on the column 5 by the drive motor.

Since the flip-up door according to the present invention has the above-mentioned structure, the tip of the auxiliary arm 1 draws a locus L1 around the support portion 3, and the tip of the main arm 2 forms the support portion of the support arm 4. Draw a locus L2 at the center. That is, both arms 1 and 2 rotate from a bottom dead center P2 that is substantially horizontal and parallel to a top dead center P1 that intersects in a substantially upright manner, and is maintained in a substantially vertical state when the door 6 is lowered and closed, and when it is opened and raised. It is kept horizontal.

The locus L1 of the auxiliary arm 1 and the locus L2 of the main arm 2 rise substantially vertically from the bottom dead center P2 to an appropriate range, and the upper part of the door 6 is pivotally attached to the upper end of the auxiliary arm 1.
Since it moves almost along the locus L1 of the above, the door 6 ascends almost vertically from the closed state to the early stage of opening, then reaches the high place and then reaches the top dead center P1 while changing its posture to the horizontal state and reaches the road side. There are few protrusions.

[0015]

Since the flip-up door according to the present invention is constructed as described above, it has the following effects.
Since the door is supported by two arms from the pillar,
The door can be rotated and lifted correctly in a stable state from beginning to end, and it is stable even at an arbitrary stop position. Moreover, since the door rises almost vertically and reaches a high place and then shifts horizontally, even if the lower end protrudes toward the road when the door is raised or lowered,
Since the amount of protrusion is extremely small, it does not hinder the passage of traffic and enhances safety. Further, since a complicated link mechanism is not required, the mounting is easy and erroneous operation can be avoided.

[Brief description of drawings]

FIG. 1 is a side view of a flip-up door according to the present invention.

FIG. 2 is a side view of a flip-up door according to another embodiment.

FIG. 3 is a side view showing an opened / closed state of a door.

FIG. 4 is a plan view of a main part of a flip-up door.

FIG. 5 is a plan view of an essential part showing an example of supporting the arm.

FIG. 6 is a cross-sectional view of a main part showing an example of (A) and (B) the support arm and the support of the arm.

7A and 7B are a sectional view of a main part showing an example of use of the (A) and (B) biasing device and a side view showing an example of supporting the arm.

[Explanation of symbols]

 1, 2 Arms 3, 13 Support parts 4 Support arms 5 Supports, 5a Supports front, 5b Supports side, 5c Supports back, 5c Supports rear 6 Doors 8, 9 Supports 16 Bag groove 11,12,21,22 Joints A Entry / Exit, S Baffle Equipment L1 Auxiliary arm trajectory, L2 Main arm trajectory P1 Top dead center, P2 bottom dead center H Door width, t Door height T Strut height, h Strut width

Claims (1)

(57) [Claims] 1. A support part (3) facing the front of the doorway (A) is attached to a column (5), and an auxiliary arm (1) is pivotally attached to the support part so as to be rotatable in the range from the front to the upper side. At the same time, a supporting arm (4) that rotates in the same direction as the auxiliary arm is supported rearward below the pivot portion, and a main arm (2) that rotates while avoiding the auxiliary arm is attached to the supporting arm. The tip of the arm is almost horizontal at top dead center (P1) and bottom dead center (P2).
The arms can be pivotally attached to the door (6) so as to be substantially vertically aligned with each other, and the door can be held in a substantially vertical closed state at the bottom dead center and in a substantially horizontal opened state at the top dead center. A flip-up door characterized by the above.