JPH05516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to gates for external structures such as buildings, particularly garage doors.

[Conventional technology]

Conventional rotating elevator doors are vertical at the closing limit,
It was horizontal at the opening limit. However, even if the door is vertical at the opening limit, it can be put to practical use as long as the opening height is high.

[Problem to be solved by the invention]

A technical object of the present invention is to provide a lift door that has a sufficient opening height, although the door is vertical even at its opening limit. At the same time, it reduces the fear that the trajectory of the door during opening and closing will protrude toward the road and obstruct traffic.

[Means and examples for solving the problem]

The structure of one embodiment of the pendulum lift door according to the present invention will be described with reference to the drawings.The pendulum lift door according to the present invention will be described with reference to the drawings. Two sets (21, 22, 31, 32) of pivot points 21, 31 (22, 32) are arranged, upper and lower, and one pillar 41, 42 is erected near the middle of the two side boundaries. Each of the pillars 41 and 42 has two upper and lower pivot points 5 with axes X and Y perpendicular to the side boundary surfaces.
1,61 (52,62) are arranged, and the above-mentioned upper and lower pivot points 21...32 and pivot points 51...62
set (21, 51, 31, 61, 22, 52, 3
2, 62), two parallel and equal length support arms 71, 81 (72,
82), and the support arms 71...82 are set at an angle of depression when the door is closed and at an angle of elevation when the door is opened,
On the other hand, at least the upper or lower support arm 71
...The support arms are connected to each other for one set of 82 (82
1, 82), a torsionally rigid connecting body 9 is connected and fixed, and the rotation process of the support arms 71...82 is performed by rotating the rotation parts K of the support arms 71...82, etc.
The elevation/depression angle is limited by a stopper S integrated with the support columns 41, 42, etc. that abuts on the support arm 71... and,
A biasing member F that substantially counteracts the gravitational moment of the door 1 is loaded between the ground surface and the integral structure, and the moment of the biasing member F in the anti-gravity direction with respect to the pivot points 51...62 is loaded. However, when the door is closed (open), door 1
The structure is characterized in that the moment of gravity is smaller (larger) than the gravitational moment of .

[Effect]

Since the present invention has the above configuration, the width of the door 1 in the height direction is approximately 1 m, and the support arms 71...8
Assuming that the length of 2 is approximately 1.5 m, the height of the pivot points 51...62 from the ground is approximately 1.7 m, and the angle of depression of the support arms 71...82 is approximately 35°, at this time door 1 is only openable. The lower edge is approximately 1.7m, which is sufficient for normal vehicle access. In addition, the amount of protrusion of the trajectory of door 1 toward the road side is approximately less than 20 cm, which is compared to the conventional rotating lift door 30.
It can be much less than ~40cm.
The operation can be understood from the fact that the quadrilateral formed by the pivot points 21, 31, the support arms 71...82, and the pivot points 51...62 is always a parallelogram. At the door opening limit, the reaction force moment of the biasing member F is door 1
If constants such as spring constants are selected so that they are larger than the gravitational moment of , and vice versa, they are smaller in the closed door limit, the operation will be more stable. Although the pendulum lift door according to the present invention can be applied to ordinary garage doors, it is suitable for application to inverted U-shaped garages and mechanical two-tiered garages because the pillars can also be used (it is suitable for application to ordinary rotating lift doors). In this case, the number of opening and closing operations becomes complicated and becomes impossible to apply.) The effect of the torsionally rigid connecting body 9 is to improve the synchronous transmission of the left and right sets of the support arms 71...82, and it may be a simple rigid body, but if it has torsional rigidity, it may be a universal joint or flexible cable. It may be.

Since the moment in the anti-gravity direction due to the biasing member F is small when the door is closed and large when the door is open, the door 1 naturally points downward (upward) when the door is closed (opened), and the states of the opening and closing limits are respectively different. It has become stable and self-maintaining. Biasing member F
In the case of compression biasing, the biasing force generally weakens as the biasing member F extends (as the door 1 moves toward opening), but if the length of the arm relative to the pivot point 51...62 increases, The moment in the anti-gravitational direction due to the biasing member F is not only not reduced but can even be increased. For example, as shown in the enlarged view in FIG. 3, a specific method is such that the position of the engagement point of the biasing member F with respect to the rotating part K is at a deep depression angle when viewed from the pivot points 51...62 at the closing limit. This can be solved by making α. Even though the stopper S for the rotation process at the closing limit is provided integrally with the ground surface, it is of the same construction since the support and the ground surface are originally supposed to have an integral structure.

〔Effect of the invention〕

According to the present invention, since the door 1 can be regarded as one side of a four-bar chain of a parallelogram, the door 1 always rises and falls vertically, and the support arm 7
1...The length of 82 is long and the rotation angle is small (the rotation angle of a normal rotating lift door is 90 degrees, but in the present invention it can be less than 90 degrees), so it can be placed on the road side. It is possible to obtain a rotating lift door with less protruding trajectory in the same site space as before.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a main part of an embodiment of the pendulum lift door according to the present invention applied to an inverted U-shaped garage, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a view of the vicinity of the pivot point. This is an enlarged view. 1...door, X...axis, Y...axis, 21,2
2, 31, 32... Pivot point, 41, 42... Pillar, 51, 52, 61, 62... Pivot point, 71,
72, 81, 82...support arm, 9...coupling body, K...rotating part, S...stopper, F...biasing member.

Claims (1)

[Claims] 1. Two sets of upper and lower pivot points with pivots parallel to the upper stile of the door are arranged in positions close to the second side edge of the door, and near the middle of the second side border Each pillar is erected, and each of the pillars is provided with two upper and lower pivot points with axes perpendicular to the lateral boundary surface, and the upper and lower pivot points and pivot points are connected to each other. Two parallel and equal length support arms, one upper and lower each, are suspended between the sets, and the support arms have a depression angle when the door is closed.
At the same time, a torsionally rigid connecting body is connected and fixed between at least one set of the upper or lower support arms to prevent rotation of the support arms. The process is limited between the elevation and depression angles by a stopper that is integral with the support, ground surface, etc. that comes into contact with the rotating part of the support arm, and at least one pivot point of the support arm. A biasing member that substantially counteracts the gravitational moment of the door is loaded between the vicinity and the structure integrated with the ground surface, and the moment of the biasing member in the anti-gravity direction with respect to the pivot point is applied to the closing ( Open)
A pendulum lift door characterized by being smaller (larger) than the gravitational moment of the door when the door is open.