JPH0238753B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotating lift door, and more specifically, when the door body is flipped up to open the door, a part of the door body protrudes onto the road side. Regarding the revolving lift door that does not exist.

[Prior art] and [Problem to be solved] This type of conventional rotating elevator door is
An example of this is the flip-up type revolving lift door as shown in Publication No. 53507.
There is a problem in that when the door is flipped upwards, a part of the door body protrudes onto the road side, and this protruding part poses a problem, especially when the gate is installed right on the edge of the road.

This occurs because the distance from the center of rotation to the lower edge of the door body is longer than the horizontal distance from the pivot point (rotation center) of the column supporting the door body to the door. This is particularly true when the vertical width (height) of the door is large, or when the lower edge of the door is close to the ground surface when the door is closed. Until it becomes equal, it will draw a trajectory that continues to protrude into traffic, causing a problem that will hinder traffic on the traffic side.

An object of the present invention is to solve the problems of the prior art and provide a rotating lift door that has a simple structure and can minimize unnecessary protrusion of the door body into unnecessary traffic when the door is opened and closed. The purpose is to

[Means for Solving the Problems] In order to achieve such an object, the structure of the rotary lift door of the present invention is such that the first arm rotatably supports the door body on a support member installed on the ground surface. an arm, a second arm connected to the first arm, and rotatable to any member of the support member, the first arm, and a rigid structure fixed to the ground surface; a connecting member supported by the door body, one end of the first arm on the side of the door body is pivotally connected to the door body, and the second arm is rotatable to one of the members; The second arm is supported to slide in the longitudinal direction, and one end of the second arm on the side of the door body is pivoted to a position different from the pivot position of the first arm of the door body, so that the door can be opened. The connecting member is rotated in response to the rotation of the second arm that rotates in response to the opening of the door body when the door body is opened, so that the second arm is positioned so that the lower edge hardly protrudes toward the traffic side. It is meant to be moved by sliding.

[Function] In this way, by providing the first and second arms,
Each end is pivotally attached to the door body so that it can rotate, and the connecting member is rotated according to the flip-up rotation state of the door so that the lower edge of the door body does not protrude to the traffic side. Since the door is retracted toward the estate side, even when the door is opened, the lower edge of the door body located farthest from the center of rotation of the door body hardly ever comes out to the traffic side. Moreover, since the additional configuration mainly consists of the sliding mechanism and the connecting member, the mechanism becomes simple.

As a result, the safety of traffic is ensured, and at the same time, there is no need for so-called setbacks, in which the closing position of the door is set in advance to the inside of the property only by the protruding part of the above trajectory, and the storage capacity in a fixed garage area is expanded. Therefore, effective use of land can be expected.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the structure of an embodiment of the rotary lift door according to the present invention, and FIG. FIG. 3 is an explanatory diagram of the door rotation trajectory and the movement trajectory of the connecting member in the embodiment shown in FIG. 1.

First, the configuration of the rotary lift door according to the embodiment shown in FIG. The above-mentioned axis It's starting to pass.

Two pivot points 41, 42 are provided at positions corresponding to the axis X of the pillars 31, 32, and two support arms 21, 22 are attached to these two pivot points 41, 42 at one end 21a. , 22a, and is rotatable over a range of approximately 90 degrees within a plane intersecting the axis X mentioned above. moreover,
The decorative panel 1 (hereinafter referred to as the door 1) serving as the door body is connected to the open ends 21 of these two support arms 21 and 22.
between b and 21b, the two support arms 2
1 and 22 in a direction intersecting with each other.

Here, the two open ends 21b, 22b of the support arms 21, 22 and the door 1 are arranged so as to straddle the door 1 so that the door 1 can freely rotate about a pivot Y that is substantially parallel to the axis X. This is done by pivoting on Y. That is, the open ends 21 of the support arms 21 and 22 at the pivot point provided on the side surface of the door 1
b, 22b are pivotally attached to the sides of the door 1, so that the door 1 has a degree of freedom in which it can rotate relative to the support arms 21, 22 in the traffic direction and the property direction. Note that, for convenience of explanation, this rotational state will be referred to as a second rotational state here. A first rotation state is defined as a rotation state in which the door 1, which is raised by flipping the door open, rotates toward the horizontal or vertical direction.

Now, let the two support arms 21 and 22 be the first arms, and similarly to these two support arms 21 and 22, set the front ends 51b and 52b on the door 1 side to positions different from the pivot points of the support arms 21 and 22. The pivoted arm pieces 51 and 52 are arranged as second arms.
In the embodiment, the rotation surface of the second arm created by the trajectory drawn by the arm pieces 51 and 52 as the door 1 is opened and closed is near the surface including the trajectory of the first arm that rotates in the same manner. ing.

Specifically, the two arm pieces 51 and 52 have their front ends 51b and 52b (the pivoting side with respect to the door 1) attached to the door 1.
The supporting arms 21 and 22 are located below the pivot points other than the above-mentioned pivot points, and are pivoted at a position where a pivot axis Z substantially parallel to the axis X is formed. Also, 2
The middle portions 51c and 52c of the two arm pieces 51 and 52 are connected to the front ends 51b and 52b of the two support columns 3.
This corresponds to an arbitrary point on 1 and 32, and here, this corresponds to the pivot point 41, and pivot pins 61 and 62 are provided there. With this, arm piece 51,5
The rotation axis of 2 is aligned with the shaft fulcrum 41 (coaxial relationship),
Support arms 21 and 22 are pivoted and engaged. Therefore, the pivot point 41 is connected to the pivot pin 61,
62 position, and at the same time support arms 21, 22
It also serves as the axis of rotation.

Here, middle parts 51c, 5 of arm pieces 51, 52
2c engages with the pivot pins 61, 62, so that the arm piece 5 of the support arms 21, 22 within the rotational plane
1, 52 rotation is ensured, and the arm pieces 51, 52
It allows linear movement in the longitudinal direction, and restricts linear movement in other directions. A specific example of the engagement of the arm pieces 51, 52 with the pivot pins 61, 62 is shown in detail in FIG. 2, which will be described later.

As a result, the arm pieces 51, 52 are slidable in the longitudinal direction, and the pivot pins 61, 62
Both sliding and rotation are allowed so as to be able to move in directions to the traffic side and the property side with the center as the center.

81 and 82 are floating link rods, which have one end 81a and 81 as shown in FIGS. 1 and 2.
2a is the rear end 5 of the arm pieces 51, 52 on the opposite side from the door 1
1a, 52a, and pivot pins 71,
72 is used as the rotation axis to make a playful swinging motion. Note that the pivot pins 71, 72 are fixed to member regions extending to the rear of the columns 31, 32, and
The ends 81b and 82b of 82 can be rotated.
It is mated with. The axis of rotation formed by the axis passing through these two pins is along the axis X.

By adopting the above configuration, the pivot points (pivot Z) of the two arm pieces 51 and 52 and the pivot pin 6
By changing the distance between 1 and 62, the axis Y
The door 1 can be rotated back and forth with respect to the traffic side using the rotation axis as the rotation axis (second rotation state). This second rotation is
By selecting the lengths of the floating linking rods 81, 82 and the positions of the support pins 71, 72, which are the centers of rotation, they can be freely selected to a certain extent, and are independent regardless of the open position of the door 1 (first rotational state). It is possible to set it to . Therefore, the rotational position where the door 1 is located as the door 1 flips upward (first rotational state)
The door 1 can be retracted toward the estate by an arbitrary amount depending on the amount. Therefore, for example, if the door 1 is retracted toward the property depending on the state of the door 1 in the first rotation state in which the lower edge protrudes outside the property, the lower edge of the door 1 can be moved. It can be moved from the traffic side to the property side in accordance with the first rotation. Therefore, as an example of this, as the door 1 is flipped open, the ends of the floating link rods 81, 82 are moved in a concave trajectory toward the pivot pins 61, 62, as shown in FIG. The door 1 can be retracted by rotating the parts 81a and 82a. As a result, the lower edge of the door 1 does not protrude toward the traffic side.

By the way, in this embodiment, there is a stopper for limiting the rotation stroke of the two support arms 21 and 22 to approximately 90 degrees, and rotating parts such as the door 1 and the support arms 21 and 22 are rotated around the pivot points 41 and 42. A biasing spring for reducing the gravitational moment shown in the figure is not shown for the sake of clarity. In addition, the first digits 2 and 1 of the two-digit numerical codes used in this specification mean the left and right sides of the left support arm system and right support arm system, respectively,
Although some are not shown, they appear identical to those of other systems.

Next, the relationship between the floating linking rods 81, 82 as connecting rods and the arm pieces 51, 52 will be explained with reference to FIG.

As seen in the state in which the arm pieces 51, 52 are attached to the struts 31, 32 in FIG.
A pivot pin 6 forming a pivot point 41 provided at
1 and 62 are fitted into the long groove holes and guided by the pivot pins 61 and 62 so that the arm pieces 51 and 52 can slide on the pivot pins 61 and 62.
It is supported by 2. And floating link 81,8
2 and the arm pieces 51, 52 are at their respective rear ends 51a,
51a and end portions 81a and 82a. Therefore, the floating link rods 81, 82
rotates according to the rotation of the arm pieces 51 and 52.

Here, the floating link rods 81, 82 and the arm pieces 51, 52
The relationship between the rear end 51 of the arm pieces 51, 52 and
Although the length up to a and 52a is longer, the pivot pin 7
1 and 72 are located further back from the door 1 than the pivot pins 61 and 62, so the pivot pins 61 and 6
Assuming that the arm pieces 51 and 52 do not slide around the center point 2, when the arm pieces 51 and 52 rotate independently of the floating link rods 81 and 82 (this is a circular motion), the rear end 51
The circle drawn when the end portions 81a, 82a of the floating link rods 81, 82 rotate independently around the pivot pins 71, 72 is behind the circle drawn by a, 52a.

Therefore, the ends 81a, 8 of the floating link rods 81, 82
In the illustrated mechanism in which the rear ends 51a, 52a of the arm pieces 51, 52 are pivotally connected, the rear ends 51a, 52a are moved according to the circle located at the back, and the arm pieces 51, 52 are It slides to the rear, thereby causing a movement of pulling the door 1 towards the property. As a result, due to the synergistic effect of the arc drawn by the end portions 81a and 82a located at the back and the arm pieces 51 and 52 being located below the support arms 51 and 52, the lower edge of the door 1 almost extends to the traffic side. You don't have to. Moreover, the amount of retraction at this time is determined according to the rotation of the arm pieces 51 and 52. In other words, the amount of retraction increases or decreases as a function of the rotation angle.

Therefore, as shown in FIG. 3, depending on the rotational position of the door 1, the lower edge of the door 1 rises approximately vertically, and eventually the door 1 becomes horizontal and reaches the open state. can. In other words, the position of the lower edge is
It is determined according to the trajectory shown by the rear ends 51a, 52a of the arm pieces 51, 52.

Now, when the door is closed, the door 1 becomes approximately vertical like a normal door, and the open ends 21 of the support arms 21 and 22
b, hanging down from 22b. From this state, door 1
When the door is opened by rotating upward (first rotation) with respect to the pivot points 41 and 42, the lower edge of the door 1 moves in a circle around the pivot points 41 and 42 in the conventional rotary lift door. Therefore, the distance corresponding to the radius is the distance connecting the lower edge and the pivot points 41, 42, and since it is longer than the distance connecting the support arms 21, 22 and the door 1, there is no inconvenience that the door protrudes into traffic. be. However, in this embodiment, the arm pieces 51, 52 are linked to the floating link rods 81, 82 that move in a circular manner as described above, so as the door 1 flips up, the arm pieces 51, 52 rotate. As a result, the free movement linkage 8
1 and 82 are rotated and the arm pieces 51 and 52 are retracted inward from the property with reference to the pivot pins 61 and 62, so that the lower edges hardly protrude into traffic.

As for its operation, when the door 1 is rotated from the closed state to the opening direction (rising direction), the support arms 21, 2
2. According to the rotation of the arm pieces 51, 52, the arm pieces 51, 5
The rear ends 51a, 52a of 2 rotate clockwise in FIG. The floating link rods 81 and 82 rotate clockwise based on the length and positional relationship described above. At this time, the rear ends 51a, 52a of the arm pieces 51, 52 are
It moves together with the ends 81a and 82a of the floating link rods 81 and 82, and increases and decreases as a function of the rotation angle of the arm pieces. Therefore, assuming that the support arms 21 and 22 are attached at right angles to the door 1 when the door is closed, the door 1 and the support arms 21 and 2 as seen in a side view.
The angle formed with 2 will increase or decrease between a right angle and an acute angle.

Note that the end portions 8 of such floating link rods 81 and 82
1a, 82a (this is also the arm piece 51, 5
2) should ideally be in the shape of a horseshoe (see the chain line in FIG. 3) with a curvature slightly smaller than a circle in order to raise the lower edge substantially vertically. However, since this can be replaced by a circle with an approximate radius of curvature, the trajectories of the end portions 81a, 82a of the floating link rods 81, 82 may be adjusted to that.

Therefore, if the length of the floating link rods 81 and 82 is determined in advance to be equal to the radius of this approximate circle, then
The lower edge of the door 1 can be set to rise and fall substantially vertically as the door 1 is opened and closed.

As explained above, the locations where the pivot pins 61, 62 that engage with the middle parts 51c, 52c of the arm pieces 51, 52 are fixed are not limited to the pivot points 41, 42; Arms 21, 22
It may be selected to be placed above, on the supports 31 and 32, or on a separate rigid structure from the ground surface S.

Further, regarding the fixed positions of the pivot pins 71 and 72, the above description can be applied as is, except for the support arms 21 and 22.

In addition, when the movement of the floating linkage rods 81, 82 is expected to come into contact with a human body, the movement of the floating linkage rods 81, 82 is
It is preferable to cover the floating linking rods 81 and 82 including the second movement range with a circular cover.

[Effects of the Invention] As described above, in this invention, the first and second arms are provided, each end of which is pivotally connected to the door body, and the lower edge of the door body is In order to prevent the door from protruding to the traffic side, the connecting member is rotated according to the state of the door's flip-up rotation to pull the door body toward the property, so even when the door is opened, the farthest position from the center of rotation of the door body The lower edge of the door body will almost never protrude to the traffic side. Moreover,
The mechanism becomes simple because the additional configuration mainly consists of the sliding mechanism and the connecting member.

As a result, the safety of traffic is ensured, and at the same time, there is no need for so-called setbacks, in which the closing position of the door is set in advance to the inside of the property only by the protruding part of the above trajectory, and the storage capacity in a fixed garage area is expanded. Therefore, effective use of land can be expected.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of an embodiment of the rotary lift door according to the present invention, and FIG. FIG. 3 is an explanatory diagram of the door rotation trajectory and the movement trajectory of the connecting member in the embodiment shown in FIG. 1. 1... Decorative board (door), 21, 22... Support arm, 21a, 22a... One end, 21b, 22b...
...Open end, 31, 32... Support, 41, 42...
Axis fulcrum, S...ground surface, X...axis, Y, Z...axis, 51, 52...arm piece, 51a, 52a...rear end, 51b, 52b...front end, 61, 62...pivot Pins, 71, 72...Spindle pins, 81, 82...
…Freedom connection.

Claims (1)

[Scope of Claims] 1. A door body is rotatably attached to a support member erected on the ground surface via an arm, and the door body is rotated in a direction that does not come into contact with the ground surface, and the door is closed. In a rotary lift door in which the door is opened and is closed adjacent to or in contact with the ground surface, and in which the door body stands up against the ground surface in this closed state, the arm is a first arm, and the door is closed. a second arm for one arm, and a connecting member connected to the second arm and rotatably supported by the supporting member and any member of the rigid structure fixed to the ground surface. one end of a first arm on the side of the door body is pivotally connected to the door body, and a second arm is fixed to the support member, the first arm, and the ground surface. a second arm on the side of the door body;
a second arm, one end of which is pivoted at a position different from the pivot position of the first arm of the door body, and which rotates in accordance with the opening of the door body when the door is opened; The rotary lift door is characterized in that the second arm is slidably moved so that the connecting member rotates in response to the rotation of the second arm and the second arm is positioned at a position where the lower edge hardly protrudes to the traffic side. 2. One end of the connecting member is pivotally connected to either the support member or a member of the rigid structure fixed to the ground, and the other end is connected to the door body side with respect to the position where the second arm is supported. The rotary lift door according to claim 1, characterized in that it is a link member pivotally attached to a portion of the second arm on the opposite side.