JPS621990A - Revolving elevating door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

A conventional rotary elevator door is known as Japanese Patent Publication No. 57-53507, and the decorative panel (door) seen from the part of the support installed on the ground surface is a free end, and is a kind of cantilever. Therefore, it is clear that the column that supports the pivot point on the ground receives a stronger moment than the door support arm that connects the door and the pivot point, and the column is a stronger structure than the support arm. Of course. In this case, loading the biasing member for reducing the gravity of the rotating portion into the support column further increases the burden on the request to make the support column more compact.

Problems to be Solved by the Invention The present invention aims at making the means for supporting the pivot point of the rotating lift door relative to the ground slender and compact, thereby improving the appearance and ease of access.

Means and Embodiments for Solving the Problems The configuration of an embodiment of the rotating lift door according to the present invention will be described with reference to a drawing. year,
Two shaft fulcrums 41φ42 arranged on the axis X, and one ends 21a, 22. , L is supported between one support arm 21Φ22 which is rotatable in a plane intersecting the axis X marked -14, and the open ends 21b and 22b of the second support arm N 21122. Support arm 21/2
2, and two pillars 31 and 32 that support the two shaft supports 41 and 42, respectively, on the ground surface S. Support arm 21
In a rotating elevator door consisting of urging members 61 and 62 that provide a moment in the anti-gravity direction that counteracts the gravitational moment shown by the rotating portion $t62 (61
) is loaded into at least one of the support arms 22, one working end 62a of the biasing member 62 is a member that will eventually be integrated with the ground surface S, and the other working end 62b is a rotating member. The structure is characterized in that they are respectively engaged with the moving parts K. Note that the 24th code numeral 2.1 used in this specification indicates the left and right sides of the support arm system, and although some are not shown, they appear the same as those of other systems. . In addition, 4]a and 42a are tongue pieces further integrally projecting in the radial direction from the pivot points 41 and 42 that are integrated with the ground surface S, 21' and 22'' are hollow parts of the support arm 2]-22, 2 + 'a・22' a is the support □ 3 □ Holder, one end of 21 and 22 ゛C, and a hollow hole 1-sink, 71 which is made into an IV plate circle Ig+ coaxial with the axis
・72 is an aesthetically integrated base with supports 31 and 32.
Therefore, the rotational stroke of the support arms 2I and 22 is set in a range from a substantially horizontal direction (when the door is closed) to a substantially vertical direction (when the door is opened).

Function Since the present invention has the following configuration, for example, if compression springs are used as the biasing portions (461 and 62) as shown in FIG. 2, the tongue pieces 4-1a and 42a are The support arms 21 and 22 are provided to protrude vertically downward substantially perpendicularly to each other, and one active end of the spring is provided at the tip end of the support arm 21, 22.
62a is engaged. Open end of support arm 2 l
The tips of the tongues 41a and 42a viewed from b and 22b are far away when the door is open (when the support arm is vertical) and close when the door is closed. Therefore, when the door is closed, the spring is maximally compressed and stores high energy. As a general rule, if the rotational moment on the rotating part K due to the biasing force of the spring is set so that the gravitational moment on the rotating part is approximately equal to each other, the gravity on the door 1 can be made zero, and the door 1 can be opened and closed. The required operating force for this is extremely small. If a tension spring is used as the spring, the tongue pieces 41a and 42a are of course
The projecting direction of the cable should be vertically upward, and it is a common practice to add and extend a cable to the end of the tension spring, but in this case, the open end of the added cable should be vertically upward. It is recognized that the working ends 61a and 62a of the. Stopper 71 (7
2) is a member that is integrated with the support column 31 (32), and can be separated into upper and lower limits. , the rotation stroke of the rotation portion is limited to approximately 906. The shape of the struts 31 and 32 is not limited to independent columns, and may be formed integrally with a side wall or a gate post, but this is not a problem at least for the time being.

Other Embodiments FIG. 3 shows another embodiment, in which the tips of the tongue pieces 41a and 42a,
A connecting rod 8 is connected between the working ends 61a and 62a of the spring.
1.82, which engages indirectly and has a structure that utilizes the known piston movement. The operation and effect are the same as in FIG. 2.

Effects of the Invention Since the present invention has the following configuration, the supports 31 and 3
There is no content in the supports 31 and 32, and the diameter of the supports 31 and 32 can be made as small as possible as long as the strength conditions are satisfied. The support arms 21 and 22 originally have lower strength requirements than the supports 31 and 32, so the support arms 21 and 22 are
Although it is designed to be thinner than 32, the main part of the spring can be sufficiently accommodated within this small diameter support arm i, 21, 22. Therefore, it can be said that this is an effective configuration in terms of rainwater countermeasures. In general, the -L direction from the shaft supports 41 and 42 is not much different from the conventional structure (exterior -L), and the area below the shaft supports 41 and 42 can be made more compact than the conventional structure.

[Brief explanation of drawings]

The drawings all show the door closed; FIG. 1 is a perspective view of a main part of an embodiment of the rotating lift door according to the present invention, FIG. 2 is a sectional view of a main part of FIG. 1, and FIG. It is a sectional view of the main part of an example. 1◆・・・・・・・・・Decorative board (door) 21・22・・・・Support Arno, 21a fight 22a-φ fist・One end 21 b fight 221】・War・・Open end 21'・22'...Hollow 21a'-22a' Jar/Hollow casing l
- 31, 32... Support pillars 41, 42... Pivot support points 41a, 42a, φ... Tongue K... Rotating parts 61, 62...・・・・Same force member 71172・・・・Stopper 81・82φ◆・・・・Connection rod

Claims (1)

[Claims] The axis of rotation is a straight line that intersects a constant ground plane and a vertical plane, and two shaft fulcrums are arranged on the axis, and one end is pivotally supported by the two shaft fulcrums, and the shaft intersects with the above axis. between two support arms that are rotatable in a plane and open ends of the two support arms;
A decorative board installed in a direction that intersects the above-mentioned second support arm, a second support supporting each of the above-mentioned two pivot points relative to the ground surface, and a rotating part of the above-mentioned decorative board, support arm, etc. In a rotating lift door comprising a biasing member that provides a moment in an anti-gravity direction that counteracts a gravitational moment, a main part of the biasing member is loaded into at least one of the support arms, and one of the biasing members The working end of is for the member that will eventually be integrated with the ground surface, and the other working end is for the rotating part,
A rotating lift door characterized in that each door is engaged with the other.