JPH0125199Y2 - - Google Patents

Description

[Detailed Description of the Invention] An object of the invention is to provide a rotating lift door particularly suitable for diagonal frontages.

The configuration of an embodiment of the variable arm rotary elevator door according to the present invention is described with reference to a drawing. A straight line placed away from the ground surface S is the axis of rotation and two support arms 21, 22 whose one ends 21a, 22a are pivotally supported by the two shaft supports 11, 12 and are rotatable in a plane intersecting the axis X; the second support arm 21;
In the rotary lift door made of the decorative board 1, which is installed between the open ends 21b and 22b of the two support arms 21 and 22 in a direction intersecting with the two support arms 21 and 22, at least one of the support arms 21 and 22 is connected to the It is separated into a part 222 including one end 22a and a part 221 including the open end 22b, and the second part 222 and
21 is characterized in that the relative positions seen in the longitudinal direction can be arbitrarily selected and fixed. Note that 31 and 32 are the supports of the pivot points 11 and 12, and 4 is a support arm portion 221 and a support arm portion 2 into which the support arm portion 221 is loosely fitted.
22, the stopper that limits the opening/closing stroke of the decorative plate, the door 1, the biasing spring that reduces the weight of the rotating parts including the door 1, etc. are shown in the figure for the sake of clarity. Not shown.

The rotating lift door according to the present invention mainly relates to external gates such as garage doors. Therefore, the height of the door 1 above the ground at the closed limit may be approximately at or slightly higher than the height of a person. The fact that the front road side edge of the door 1 at the open limit (the lower edge of the door 1 at the closed limit) protrudes toward the road from the position of the door 1 on the plan view at the closed limit is a nuisance for pedestrians on general roads. Therefore, considering the above conditions, the shaft support point 1
In a preferred embodiment, the ground height of Nos. 1 and 12 is approximately 1/2 of the height of a person or less.

In addition, the second part 22 of the divided support arm
1 and 222 are shown with their longitudinal directions coaxial in FIGS. 1 and 3, but this naturally includes cases where their longitudinal directions are parallel but misaligned. be.

Since the variable arm rotary lift door according to the present invention has the above configuration, when the rotary lift door is applied to a diagonal frontage as shown in Fig. 2, the installation and adjustment work on site is extremely easy. It has the advantage of maximizing land use. That is, when the land 6 has an inclination angle φ with respect to the road 5, the proportion of the part 221 of the support arm fitting into another part 222 of the support arm is set appropriately according to the degree of φ, and each part 221, After completing the position setting of 222, the respective parts 221 and 222 are fixed together by a known tightening means (tightening ring 4) used in, for example, camera tripods. It is well known that this setting and fixing mechanism and related operations are extremely simple and reliable. If the length of the support arm 21 is determined in advance so that the short side of the support arm 21 does not interfere with the passage of people when the rotation is raised, the safety of passage of people, vehicles, etc. is ensured. Of course, both the support arms 21 and 22 may be of variable arm length.
FIG. 3 shows another known example of an arm length variable mechanism, and there is no need to describe its operation in detail (9 is a screw, 8 is an opening, and 7 is a female screw hole).

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the arm variable rotation lift door according to the present invention, Fig. 2 is a plan view of the same, and Fig.
The figure is a perspective view of another embodiment of the variable arm length mechanism. 1... Decorative board (door), 11, 12... Axis fulcrum,
21, 22... Support arm, 21a, 22a...
One end, 21b, 22b... open end, 221... part including the open end, 222... part including one end, 3
1,32...pillar.

Claims (1)

[Scope of utility model registration request] The axis of rotation is a straight line placed away from the ground,
two fulcrums disposed on the shaft; two support arms having one end pivotally supported by the two fulcrums and rotatable in a plane intersecting the axis; and two support arms. In a rotary lift door made of a decorative plate, which is installed between the open ends of the arms in a direction intersecting the two support arms, a portion including the one end of at least one of the support arms and a portion including the open end. A variable arm rotary lift door characterized in that the two parts are separated into two parts, and the relative positions of the two parts in the longitudinal direction can be arbitrarily selected and fixed.