Vertical shaft revolving door mounted in opening part of building and its mounting method

Abstract

To provide a large-sized vertical shaft revolving door mounted in an opening part of a building and its mounting method.SOLUTION: In a vertical shaft revolving door 1, a door body 10 is configured to include a lower frame 12 to which a lower bearing 17 fixed to a lower side of the opening 2 is attached, an upper frame 11 to which an upper bearing 16 fixed to an upper side of the opening 2 is attached, left and right vertical frames 13, 14 which connect both left and right ends of the lower frame 12 and the upper frame 11, respectively, and a middle column 15 which connects a center of the lower frame 12 and a center of the upper frame 11, in which the upper bearing 16 and the upper frame 11 are attached via a removable upper rotation prevention fastener 164, and the removable upper rotation prevention fastener 164 is removed after the door main body 10 is attached to the opening 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a large-sized vertical axis revolving door to be installed in an opening of a building, and a method for installing the same. The vertical axis revolving door referred to here is, for example, a door in which a glass plate is fitted into a frame that can rotate around a vertical axis. [Background technology]

[0002] Conventionally, large vertical axis revolving doors were manufactured in a factory and transported directly to the site and installed in the opening of the building. In this case, there was a sufficient space up to the ceiling of the opening, and the vertical axis revolving door was lifted up to the space, the lower bearing was fitted into a recess formed in the floor of the opening, and then the vertical axis revolving door was lowered to a specified height to support the upper bearing. Summary of the Invention [Problem to be solved by the invention]

[0003] However, when there is not enough space above the building opening, the above method requires the door body of the vertical axis revolving door to be installed at a slight angle, which makes it difficult to install the door body because there is a risk of unexpected rotation during installation.

[0004] The present invention has been made in consideration of the above circumstances, and its object is to provide a vertical axis revolving door that can be easily installed even when there is not enough space above the opening of a building, and a method for installing the same. [Means for solving the problem]

[0005] This invention (first invention) is a vertical axis revolving door to be attached to an opening in a building, the door body being composed of a lower frame to which a lower bearing fixed to the underside of the opening is attached, an upper frame to which an upper bearing fixed to the above side of the opening is attached, and vertical frames connecting the left and right ends of the lower and upper frames, respectively, and the upper bearing and upper frame are attached via a removable upper anti-rotation fastener.

[0006] According to the first invention, the door body is composed of a lower frame to which a lower bearing fixed to the lower side of the opening is attached, an upper frame to which an upper bearing fixed to the upper side of the opening is attached, and a vertical frame to connect the left and right ends of the lower frame and the upper frame, respectively, and the upper bearing and the upper frame are attached via a removable upper rotation prevention fastener, so that the door body can be easily installed without unexpected rotation during installation. The reason why a fastener is not provided at the lower part is that it can be fixed with other auxiliary materials such as wedges in the case of the lower part. The upper part is fixed with a fastener because the fixing space and the auxiliary material itself are floating in the air. As a result, the door body can be easily installed even if there is not enough space above the opening of the building.

[0007] As in the invention described in claim 2, it is preferable that the door body further includes a center pillar connecting the center of the lower frame and the center of the upper frame.

[0008] According to the invention described in claim 2, the door body further includes a center pillar connecting the center of the lower frame and the center of the upper frame, making it easy to ensure the strength of the door body.

[0009] As in the invention described in claim 3, it is preferable that the lower frame and the upper frame are formed in a V shape opening to the left and right with the center post as the center in a plan view.

[0010] According to the invention described in claim 3, the lower frame and the upper frame are formed in a V-shape that opens to the left and right with the center pillar as the center in a plan view, so that even if there is an opening in the corner of a building, the door body can be made to follow the shape of the opening.

[0011] As in the invention described in claim 4, it is preferable to provide an actuator that rotates the door body around the center pillar.

[0012] According to the invention of claim 4, since an actuator for rotating the door body around the center pillar is provided, the door body can be easily opened and closed.

[0013] As in the invention described in claim 5, it is preferable that a glass plate is fitted into each frame of the door body.

[0014] According to the invention described in claim 5, a glass plate is fitted into each frame of the door body, improving the view outside.

[0015] The present invention (second invention) is a method for installing a vertical axis revolving door to an opening in a building, characterized by comprising a first step of fixing a lower bearing to the underside of the opening and attaching the lower bearing to a lower frame, a second step of fixing an upper bearing to the top of the opening and attaching the upper bearing to an upper frame with an upper anti-rotation fastener, a third step of connecting the left and right ends of the lower frame and upper frame with vertical frames, and a fourth step of removing the upper anti-rotation fastener from the upper bearing and upper frame.

[0016] According to the second invention, there are provided a first step of fixing a lower bearing to the underside of the opening and attaching the lower bearing to a lower frame, a second step of fixing an upper bearing to the upper side of the opening and attaching the upper bearing to an upper frame with an upper anti-rotation fastener, a third step of connecting the left and right ends of the lower frame and the upper frame with vertical frames, and a fourth step of removing the upper anti-rotation fastener from the upper bearing and the upper frame, thereby achieving the same effects as the first invention described above. Effect of the Invention

[0017] According to the first invention, the door body is composed of a lower frame to which a lower bearing fixed to the lower side of the opening is attached, an upper frame to which an upper bearing fixed to the upper side of the opening is attached, and a vertical frame to connect the left and right ends of the lower frame and the upper frame, respectively, and the upper bearing and the upper frame are attached via a removable upper rotation prevention fastener, so that the door body can be easily installed without unexpected rotation during installation. The reason why a fastener is not provided at the lower part is that it can be fixed with other auxiliary materials such as wedges in the case of the lower part. The upper part is fixed with a fastener because the fixing space and the auxiliary material itself are floating in the air. As a result, the door body can be easily installed even if there is not enough space above the opening of the building.

[0018] According to the second invention, there are provided a first step of fixing a lower bearing to the underside of the opening and attaching the lower bearing to a lower frame, a second step of fixing an upper bearing to the upper side of the opening and attaching the upper bearing to an upper frame with an upper anti-rotation fastener, a third step of connecting the left and right ends of the lower frame and the upper frame with vertical frames, and a fourth step of removing the upper anti-rotation fastener from the upper bearing and the upper frame, thereby achieving the same effects as the first invention described above. [Brief description of the drawings]

[0019] [Figure 1]1 is a front view showing the overall configuration of a vertical axis revolving door according to an embodiment of the present invention; [Diagram 2] This is a front view showing the installation state of the upper and lower frames and the upper and lower bearings of the vertical axis rotating door. [Diagram 3] This is a front view showing the left and right vertical frames and center pillar of this vertical axis revolving door. [Figure 4] FIG. 2 is a plan view showing the mounting state of the electric cylinder of the vertical axis rotating door. [Diagram 5] FIG. 2 is an exploded perspective view of the upper anti-rotation fastener. [Figure 6] 10 is a flowchart showing the installation procedure for the vertical axis revolving door. [Figure 7] FIG. 11 is a plan view of a vertical axis rotating door according to a modified example of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] FIG. 1 is a front view showing the overall configuration of a vertical axis revolving door 1 according to one embodiment of the present invention, FIG. 2 is a front view showing the mounting state of the upper and lower frames 11, 12 and the upper and lower bearings 16, 17 of the vertical axis revolving door 1, FIG. 3 is a front view showing the mounting state of the left and right vertical frames 13, 14 and the center pillar 15 of the vertical axis revolving door 1, FIG. 4 is a plan view showing the mounting state of the electric cylinder 18 of the vertical axis revolving door 1, and FIG. 5 is an exploded oblique view of the upper anti-rotation fastener 164.

[0021] Here, the direction perpendicular to the paper surface in Figures 1 to 3 and 5 is called the front-rear direction, the directions up, down, left and right on the paper surface are called the up-down direction and the left-right direction, respectively, and the direction perpendicular to the paper surface in Figures 4 and 7 (described later) is called the up-down direction, and the directions up, down, left and right on the paper surface are called the front-rear direction and the left-right direction, respectively. Hereinafter, each element will be referred to using the front-rear, up-down, and left-right directions in each figure, and when there are multiple identical elements, one of them may be used to represent the elements.

[0022] As shown in Figures 1 to 4, the vertical axis revolving door 1 of this embodiment is a large door to be attached to an opening 2 of a building (not shown), and is made up of a steel door body 10 whose front-to-rear dimension is much smaller than its up-down and left-right dimensions and whose up-down dimension is larger than its left-right dimension, an electric cylinder (corresponding to an actuator) 18 for rotating the door body 10 around a center pillar 15, and glass panels 19 fitted into each frame of the door body 10.

[0023] The door body 10 is mainly made of I-beam, equal-leg angle steel, C-beam, etc., and is equipped with an upper frame 11, a lower frame 12, a left vertical frame 13, a right vertical frame 14, and a center pillar 15, which have already been treated with an anti-rust paint. An upper bearing 16 attached to the upper frame 11 and a lower bearing 17 attached to the lower frame 12 are fixed to upper and lower building components 211, 222, respectively, of the opening 2 of the building (not shown), so that the door can rotate around the center pillar 15.

[0024] The upper frame 11 has a V-shape that opens gently to the left and right in a plan view, and a rotating shaft 111 that protrudes upward from the center is rotatably supported by an upper bearing 16. A bearing unit (not shown) is installed inside an upper shaft frame 161 of the upper bearing 16.

[0025] The shape of the upper axis frame 161 follows the shape of the upper frame 11, and mounting members 162 are provided symmetrically on its top surface. The mounting members 162 can be attached to a building member 211 suspended from the ceiling surface 21 of the opening 2 with on-site fasteners 163. The lower surface of the upper axis frame 161 is slightly raised above the upper frame 11. For this reason, the upper axis frame 161 is temporarily fixed to the top surface of the upper frame 11 with upper rotation prevention fasteners 164 to prevent the upper frame 11 from rotating on its own during installation work on site.

[0026] 5, the upper rotation prevention fastener 164 is manufactured by cutting an equal-legged angle iron, one side of which is perpendicular to the other side, to the length of the front-rear width of the upper frame 11 (equal to the front-rear width of the upper axle frame 161), and a screw hole H1 is drilled on one side opposite to the screw hole H2 drilled in the top surface of the upper frame 11, and a screw hole H3 is drilled on the other side opposite to the screw hole H4 drilled in the side surface of the upper axle frame 161. Then, with the screw holes H1 and H2 overlapping, a bolt B1 is inserted and screwed from above the upper frame 11, and with the screw holes H3 and H4 overlapping, a bolt B2 is inserted and screwed from the side of the upper axle frame 161, thereby achieving the temporary fixation described above.

[0027] After the installation work of the door body 10 is completed, the bolts B1, B2 are removed and the upper rotation prevention fastener 164 is removed, thereby releasing the temporary fixation described above.

[0028] The lower frame 12, like the upper frame 11, has a V-shape that opens gently to the left and right in a plan view, and a rotating shaft 121 that protrudes downward from the center is rotatably supported by a lower bearing 17. A bearing unit (not shown) is mounted inside a lower shaft frame 171 of the lower bearing 17.

[0029] The lower surface of the lower axis frame 171 can be attached to a building component 222 embedded in a recess 221 formed in the floor surface 22 of the opening 2. The embedded portion of the building component 222 is omitted. The upper surface of the lower axis frame 171 is attached to the lower surface of the lower frame 12, and at that time, the lower frame 12 is temporarily fixed to the floor surface 22 of the opening 2 with auxiliary materials such as wedges (not shown) to prevent it from rotating on its own. This auxiliary material is also removed after the installation work of the door body 10 is completed.

[0030] Fig. 6 is a flow chart showing the procedure for on-site installation of the present vertical axis revolving door 1. The following description will be given with reference to Figs. 1 to 6. For the sake of convenience, various work vehicles and various small items for work in each figure are omitted unless otherwise specified. The door body 10, electric cylinder 18, glass plate 19, and other parts of the present vertical axis revolving door 1 manufactured in a factory are assumed to have been transported to the site.

[0031] As for the on-site installation procedure of this vertical axis revolving door 1, in step S1 of Fig. 6, the base (not shown) of the lower bearing 17 is welded and fixed to the building material 222 embedded in the recess 221 on the underside of the building opening 2, and the rotating shaft 121 of the lower bearing 17 is attached to the center lower side of the lower frame 12 with a bolt (corresponding to the first step). At this time, the lower frame 12 is temporarily fixed with auxiliary materials such as wedges (not shown) to prevent it from rotating on its own.

[0032] In step S2, a chain block (not shown) or the like is used to lift the upper frame 11 with the upper bearing 16 attached to it up to near the ceiling surface 21 of the opening 2. At this time, the upper frame 11 is temporarily fixed with an upper rotation prevention fastener 164 to prevent it from rotating on its own. It is confirmed that the upper frame 11 is positioned directly above and parallel to the lower frame 12, and that the rotation shaft 111 of the upper bearing 16 and the rotation shaft 121 of the lower bearing 17 are coaxial, and the position is corrected if necessary. After that, the upper frame 11 is welded and fixed to a building member 211 suspended from the ceiling surface 21 (corresponding to the second step).

[0033] In steps S3 to S5, the left vertical frame 13 is attached to the left end of the lower frame 12 and the left end of the upper frame 11, and then the right vertical frame 14 is attached to the right end of the lower frame 12 and the right end of the upper frame 11 (corresponding to the third step). Next, the center pillar 15 is attached to the center of the lower frame 12 and the center of the upper frame 11. At this time, it is confirmed that the upper end of the center pillar 15 coincides with the axis of the rotating shaft 111 of the upper bearing 16, and the lower end of the center pillar 15 coincides with the axis of the rotating shaft 121 of the lower bearing 17, and the position is corrected if necessary. After that, the upper rotation prevention fastener 164 is removed from the upper bearing 16 and the upper frame 11 (corresponding to the fourth step).

[0034] In step S6, an electric cylinder (corresponding to an actuator) 18 is attached to another building component above the upper frame 11, for example, suspended from the ceiling surface 21. The tip of a rod 181 of the electric cylinder 18 is rotatably connected to the tip of a lever 182 attached near the upper end of the rotating shaft 111 of the upper bearing 16 by a pin. This allows the door body 10 to be adjusted so that it can rotate smoothly around the vertical axis by the extension and contraction action of the electric cylinder 18.

[0035] After the required electrical work is performed, pressing a door open button (not shown) gradually extends the rod 181 of the electric cylinder 18. The tip of the rod 181 pushes the tip of a lever 182, the base of which is fitted into the rotating shaft 111, causing the rotating shaft 111 to rotate. This rotation of the rotating shaft 111 rotates the door body 10 in the direction A in Fig. 4. A limit switch (not shown) attached to the door full open position operates, and the door body 10 opens until the extension of the electric cylinder 18 stops.

[0036] Next, by pressing a door close button (not shown), the rod 181 of the electric cylinder 18 gradually contracts. The tip of the rod 181 pulls back the tip of the lever 182, the base of which is fitted into the rotating shaft 111, causing the rotating shaft 111 to rotate in the opposite direction to the above. This rotation of the rotating shaft 111 causes the door body 10 to rotate in the opposite direction to the direction A in FIG. 4. A limit switch (not shown) attached to the door full-close position operates, and the door body 10 closes until the contraction of the electric cylinder 18 stops.

[0037] In this way, by providing the electric cylinder 18 that rotates the door body 10 around the center post 15, the door body 10 can be opened and closed easily, and the room can be ventilated appropriately. The electric cylinder 18 is used here because it produces much quieter operating noise than hydraulic cylinders, but hydraulic cylinders may also be used in some cases.

[0038] In step S7, the glass plate 19 is fitted into each frame of the door body 10. At this time, only the left vertical frame 13 is temporarily removed from the left end of the upper frame 11 and the left end of the lower frame 12. Then, one half of the glass plate 19 is fitted into the space defined by the lower side of the upper frame 11, the upper side of the lower frame 12, and the left side of the center pillar 15, and the left vertical frame 13 is attached to the left end of the upper frame 11 and the left end of the lower frame 12 to restore the door body. Next, only the right vertical frame 14 is temporarily removed from the right end of the upper frame 11 and the right end of the lower frame 12. Then, the remaining half of the glass plate 19 is fitted into the space defined by the lower side of the upper frame 11, the upper side of the lower frame 12, and the right side of the center pillar 15, and the right vertical frame 14 is attached to the right end of the upper frame 11 and the right end of the lower frame 12 to restore the door body.

[0039] In this way, the vertical axis revolving door 1 is completed, but by fitting transparent glass plates 19 into each frame of the door body 10, the view outside the room is improved. In the unlikely event that the glass plate 19 is damaged, it is necessary to remove either the left or right vertical frame 13, 14 and fit a new glass plate 19 to restore it. Note that the explanation of the finishing paint of the door body 10, the type of glass plate 19, and the sealing method are omitted. Depending on the specifications of the vertical axis revolving door 1, some of the above steps S1 to S7 may be omitted or the order may be changed.

[0040] As described above, in the vertical axis revolving door 1, the lower frame 12 and the upper frame 11 of the door body 10 are formed in a V shape that opens to the left and right around the center pillar 15 in a plan view, so that even if there is an opening in the corner of a building, the door body can be made to fit the shape of the opening.

[0041] In addition, during the installation work of this vertical axis revolving door 1, there is an upper rotation prevention fastener 164 between the upper frame 11 of the door body 10 and the upper axis frame 161 of the upper bearing 16, so the door body 10 can be easily installed without unexpected rotation during installation. The reason why no fastener is provided at the lower part is that it is possible to consider fixing the lower part with other auxiliary materials such as wedges. The upper part is fixed with a fastener because the fixing space and the auxiliary materials themselves would be floating in the air. As a result, the door body 10 can be easily installed even if there is not enough space above the opening 2 of the entrance to the building.

[0042] In the above embodiment, the vertical axis revolving door 1 is V-shaped with a large opening angle in plan view, but it may be a simple linear shape. Fig. 7 is a plan view of the vertical axis revolving door 1 according to such a modified example. Depending on the left-right width of the door body 10, if the center pillar 15 is omitted in Figs. 1 to 3, 5, and 6, the vertical axis revolving door 1 according to this modified example will be explained. In that case, as shown in Fig. 7, it is only necessary to use a linear upper frame 11', a lower frame 12' (not shown) having the same shape as the upper frame 11', and a rectangular parallelepiped upper axis frame 161', and the other elements can be shared with those of the above embodiment.

[0043] Furthermore, if the width of the door body 10 is small, the center pillar 15 that divides the glass plate 19 in two at the center can be omitted. Figure 7 assumes such a case, but if the width of the door body 10 is large, it is preferable to leave the center pillar 15 in order to ensure the strength of the door body 10 and the glass plate 19.

[0044] In the above embodiment, only one vertical axis revolving door 1 is provided, but multiple vertical axis revolving doors may be provided side by side. In that case, it is convenient because spare parts can be shared.

[0045] In addition, in the above embodiment, the vertical axis revolving door 1 is installed as an opening 2 of a building, for example, at an entrance on the first floor, but the scope of application of the present invention is not limited to this and can also be applied to floors and windows on the second floor or higher, for example.

[0046] In the above embodiment, the upper rotation prevention fastener 164 is manufactured by cutting equal-leg angle iron to a predetermined length and fastening it to the top surface of the upper frame 11 and the side surface of the upper shaft frame 161 with bolts B1 and B2, respectively, but the number, size, and mounting positions of the bolts B1 and B2 are arbitrary unless there is a particular strength problem. Furthermore, the upper rotation prevention fastener 164 may be made of other steel materials or mounting tools. [Explanation of symbols]

[0047] 1 Vertical axis revolving door 10 Door body 11, 11' Upper frame 111 Rotation axis (corresponding to the vertical axis) 12, 12' Lower Frame 121 Rotation axis (corresponding to the vertical axis) 13 Left vertical frame 14 Right vertical frame 15 Center pillar (corresponding to the vertical axis) 16 Upper bearing 161, 161' Upper frame 164 Upper anti-rotation zipper 17 Lower bearing 171 Lower frame 18 Electric cylinder (equivalent to actuator) 19 Glass Plate 2. Building openings 21 Ceiling surface 22 Floor 221 Recess [Prior art documents] [Patent documents]

[0048] [Patent Document 1] Japanese Patent Application Publication No. 9-170379

Claims

1. A vertical axis revolving door installed in an opening in a building, A vertical axis revolving door, characterized in that the door body is composed of a lower frame for mounting a lower bearing fixed to the underside of the opening, an upper frame for mounting an upper bearing fixed to the above side of the opening, and a vertical frame connecting the left and right ends of the lower frame and the upper frame, and the upper bearing and the upper frame are attached via a removable upper rotation prevention fastener.

2. 2. The vertical axis revolving door according to claim 1, wherein the door body further comprises a center pillar connecting the center of the lower frame and the center of the upper frame.

3. 3. The vertical axis revolving door according to claim 2, wherein the lower frame and the upper frame are formed in a V shape opening to the left and right with the center post as a center in a plan view.

4. 3. The vertical axis rotating door according to claim 1, further comprising an actuator for rotating the door body along the vertical axis.

5. 3. The vertical axis revolving door according to claim 1, wherein a glass plate is fitted into each frame of the door body.

6. A method for installing a vertical axis revolving door in an opening in a building, comprising the steps of: a first step of fixing a lower bearing to a lower side of the opening and attaching the lower bearing to a lower frame; a second step of fixing an upper bearing to the upper side of the opening and attaching the upper bearing to an upper frame with an upper anti-rotation fastener; a third step of connecting the left and right ends of the lower frame and the upper frame with vertical frames; a fourth step of removing the upper anti-rotation fastener from the upper bearing and the upper frame; A method for installing a vertical axis revolving door, comprising:

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