JPH03183889A - Contact legs of pivoted, rising and falling door - Google Patents

Abstract

PURPOSE:To make it possible to automatically fold and draw contact legs with the opening and closing of a door by suspending the contact legs capable of turning to the lower end of a side-end side of the door, and suspending a rope connected to a weight capable of moving upward of a sideway position in the event of the closing time. CONSTITUTION:Contact legs L and L capable of turning on a pivot Y parallel with a door rotating shaft X are suspended in the vicinity of the lower end 1a' of a side-end side of a door 1. In the event of the closing time, the contact legs L and L are so regulated by structural members that they do not turn outward of a land. A rope S is suspended in the vicinity of the pivot Y of the contact legs L and L, it is extended upward along stiles 1a of the door 1, and in the event of the closing time, the end edge is interlocked with a weight W capable of moving upward in a sideways position of the inside of the land. According to the constitution, the contact legs L and L can be automatically folded and drawn with the rotating, rising and falling of the door 1.

Description

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

[Conventional technology]

The 180° rotating ground leg of the rotating lift door is based on patent application No. 1-58.
Although it has been proposed in No. 708, there are problems in that the route of the cable is long and that some adjustment work is required to stretch the cable when constructing the gate.

[Problem to be solved by the invention]

A technical object of the present invention is to solve the above-mentioned conventional problems and to provide a grounding leg for a revolving elevator door that is simple in structure and can rotate approximately 180 degrees.

[Means and Embodiments for Solving the Problems] The construction of an embodiment of the grounding leg of the rotary lift door according to the present invention will be described with reference to a drawing. One end of the support arms 2, 2 is attached in the direction intersecting the surface, and the other ends of the support arms 2, 2 are connected to the #! which intersects the garage side boundary surface by 1α. The upper fi! 561 is lowered and the main surface of the door is vertical, it is closed for 5 seconds, while the upper fi!
51 is raised so that the door can be opened when the upper surface of the door is horizontal. A movable ground leg is suspended from the door l, and the ground leg is closed S.
In order to prevent the door from rotating outward from the substantially vertical direction, a structural member placed near the lower end 1a' of the side edge of the door 1 is used to prevent the door from rotating outward from the property. A cable S is hung on the stile S, and the cable S is extended upward along the stile 1a of the door 1, and the end edge of the cable S is opened to the stile 1a of the door 1. The structure is characterized in that it is engaged with a weight body W that is movable in an obliquely upward direction inside the property between the doors. Note that 3.3 is a support that supports the shaft support points 4.4 on the ground surface.

[Effect]

Since the present invention has the above configuration, 511 is closed for 1 s.
When the ground is at its limit, gravity causes the ground foot to remain approximately vertical with the open end facing down. For this reason, even if an unexpected external force acts on the doorwork and attempts to push down 51, the end of the grounding foot will come into contact with the ground surface and exhibit resistance against the external force, so there is no risk of damage to each structural member. To avoid. Furthermore, at this time,
Since the grounding leg is prevented from rotating outward from the ground in advance (it is sufficient to prevent it from coming into contact with the door L or the pivot Y bracket, etc.), the grounding leg is There is no outward fall. In addition, to prevent falls inward from the property, the end of the ground footing can be set several degrees outward from the property (macroscopically considered vertical), which will improve the relationship between the moment of force. This prevents the grounding legs from falling inward.

Now, as the door 1 moves upward and rotates in the opening direction, the direction of movement of the weight body W, which was diagonally upward on the back of the door between the openings, becomes horizontal, and roughly reaches the diagonally downward direction between the openings. Because of this, the grounding leg is directed vertically downward due to its own weight, and the weight body W
is affected by the gravity of In other words, when the weight body W moves diagonally downward as it reaches the gap between the open doors, the cable S is pulled, and the grounding leg is automatically reversely rotated to a position approximately 180 degrees inside the property. . This phenomenon indicates that when opening the door sl, the end of the grounding nL does not follow a locus that protrudes toward the road side, which is not only convenient for the safety of traffic, but also when the door sl is opened, the grounding leg does not extend beyond the door. Although the shape follows the inner surface, it is also visually pleasing to the inside of the property. The operation from between the open doors to between the open doors is the opposite of the above (since the weight W of the cable S moves in the direction of its relaxation, it does not generate a moment with respect to the ground leg). The direction of movement of the weight body W may be guided by sliding a cylinder (the branched support arm may also be used) or a rod. It goes without saying that the moment of the cable S due to the weight W must be greater than the moment around the axis Y due to the grounding nL's own weight. The suspension point of the cable S with respect to the ground nL is the axis Y
This is because if they are located close to each other, the amount of movement of the weight body W will also be reduced.

The overall configuration can be made compact. The reversal angle of the grounding foot does not need to be completely 180°, and even about 170° may be sufficient for practical use. In addition, a set of mechanical parts including a grounding foot with functions such as 1 or more is f.
It is also possible to perform a simple operation without making any adjustments, such as pre-manufacturing the mechanical parts set separately regardless of the illumination, and simply attaching this set of mechanical parts to the door 1 at the construction site.

In the cited invention, the rotation of the ground footing is related to the rotation of the support arm 2 around the axis This eliminates the need for complicated work such as adjusting the length of the cable S, such as adjusting the length tA of the cable S, during on-site construction. Furthermore, even if an unexpected external force is applied to the direction of rotation of the ground leg during the opening/closing operation of the door, the present invention only stops the movement of the weight body W and hardly causes damage to the structural members. However, the cited invention requires the cables, pulleys, etc. to have a fairly strong structure.

As another example, an example can be given in which the moving direction of the weight body W is approximately parallel to the plane of l1A1 (FIGS. 3, 4, and 6). In this case, the weight body W at the closing limit A spring F is additionally loaded in a direction that slightly weakens the gravity of .

The operation is as follows. At the closing limit, the gravity of the weight body W exceeds the biasing force of the spring F, the cable S is relaxed, and the ground leg is in a freely hanging state.

Now, when sl rotates upward, the weight body W moves along the plane of Fsl.
The moving direction of also changes to the horizontal direction, and the gravitational force F of the weight W
Since the component force in the direction will gradually decrease, the weight W will eventually be forced to move horizontally (toward the upper frame of sl) by the spring F, and as a result, the cable S will become tense. As a result, the grounding leg will be flipped upward. The operation when heading toward closing the door is the opposite of the above. In this case as well, the sl vertical stile 1a can be used as a structural member, but it is manufactured separately as a mechanical parts set including the ground leg independently of the door 1, and this machine v4 parts set is attached to the sl at the construction site. It is also possible to have a structure in which it is attached and fixed.

〔Effect of the invention〕

According to the present invention, a grounding leg is suspended from 511 by a pivot Y parallel to the axis Since the tension of the cable S (rotation moment relative to the ground nL around the axis Y) is controlled by the change in the gravity of the body W, it is possible to automatically fold and draw the cable as the rotating lift door opens and closes. It is possible to obtain a grounding leg that is compact, simple, and inexpensive and is useful for the safety of traffic inside and outside the property.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the essential parts of one embodiment of the grounding leg of a rotary lift door according to the present invention, Fig. 2 is a side view of Fig. 1 at the open S limit, and Figs. 3 and 4 are respectively other embodiments. The perspective view of the main part of the example and the side view at the opening limit, Figures 5 and 6 are the same as Figures 1 and 3.
FIG. 3 is a schematic side view showing the internal structure when the grounding leg shown in the figure is used as a mechanical component set. 1 ・ a a 2 ・ ・ Door, stile, lower end, support arm 4 ・

Claims (2)

[Claims] (1) One end of the support arm is attached near the second side edge of the door in a direction intersecting the main surface of the door, and the other ends of the support arm are connected to the garage side boundary surface. When the door is lowered and the main surface of the door is vertical, the door is at its closing limit, and when the door is raised and the main surface of the door is vertical, the door is at its closing limit. In a rotating lift door that can only be opened when the main surface is horizontal, a grounding leg that is rotatable about a pivot parallel to the above-mentioned axis is installed near the lower end of the above-mentioned side edge of the door. In order to prevent the grounding leg from rotating outward from the vertical direction when the door is closed, a structural member installed near the lower end of the side edge of the door is used to prevent the grounding leg from rotating outward from the property. A cable is hung near the pivot axis, and the cable is extended upwardly along the stile of the door, and the edge of the cable is inward of the property at the closing limit with respect to the stile of the door. is engaged with a weight body that is movable in an obliquely upward direction, or is linked to the lower edge of a spring that has tension in a direction parallel to the vertical stile,
A ground leg of a rotating lift door, characterized in that the ground leg is engaged with a weight body that is movable in a direction parallel to the vertical stile. (2) When a mechanical parts set including a grounding leg that satisfies the function described in claim 1 is manufactured separately from the door according to claim 1 and the mechanical parts set is attached to the door, as claimed in claim 1 A ground leg for a rotating lift door as a set of mechanical parts, characterized in that it serves as a ground leg for the rotary lift door described above.