Movable partition device

Abstract

To provide a movable partition device capable of stably opening and closing a door.SOLUTION: A movable partition device 1 includes: a plurality of partition panels 2 suspended so as to move along a running rail 3; a storage 4 for storing the partition panels 2; and a door 5 that opens and closes an opening E through which the partition panel 2 passes. The movable partition device also includes: suspension means 6 for suspending the upper part of the door 5 so as to rotate on a vertical axis; and pivot support means 7 for pivotally supporting the lower part of the door 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a movable partition device for dividing an office, an exhibition hall, a conference hall, etc. into predetermined sections for use. [Background technology]

[0002] A movable partition device is used to divide an indoor space such as an office, exhibition hall, conference room, etc. into predetermined sections by connecting partition panels that are suspended from a running rail installed on the ceiling and that can move along the running rail in a series in the width direction to form a wall surface. Some movable partition devices are also known to be equipped with a storage facility for storing partition panels that are not used as partitions.

[0003] For example, the movable partition device disclosed in Patent Document 1 comprises a ceiling rail, a movable wall (partition panel), a storage section, and a door. The movable wall is suspended from the ceiling rail so as to be movable along the rail. The storage section is a space for storing the movable wall when not in use, and is connected to the interior space through an opening provided in the interior wall. The movable wall is also movable along the ceiling rail that is retracted from the interior space into the storage section. The door is fixed to the interior wall by a butterfly mechanism so as to be rotatable around a vertical axis, allowing the opening to be opened and closed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 2871569 (page 3, Figure 2) Summary of the Invention [Problem to be solved by the invention]

[0005] In a movable partition device such as that described in Patent Document 1, the door can be rotated around the rotation axis of the butterfly mechanism, allowing the door to be positioned flush with the interior wall when the opening is closed. However, because the movable partition device is large, it is designed to operate the door at a position near the bottom edge. The butterfly mechanism applies a large horizontal force to the rotation axis of the butterfly mechanism, which is located high and away from the position where the door is operated, and a large load acts on the rotation axis to tilt it. As a result, the horizontal force applied varies depending on the position of the rotation axis, which could cause resistance when operating the door.

[0006] The present invention has been made in view of these problems, and has as its object to provide a movable partition device that allows doors to be opened and closed stably. [Means for solving the problem]

[0007] In order to solve the above problems, the movable partition device of the present invention is A movable partition device comprising a partition panel suspended and supported so as to be movable along a traveling rail, a storage facility for storing the partition panel, and a door for opening and closing an opening through which the partition panel passes, The door is characterized by having a suspension means for suspending the upper part of the door so that the door can rotate about a vertical axis, and a pivot means for pivotally supporting the lower part of the door. According to this feature, the weight of the door can be supported by the suspension means, while the pivot support means can guide the rotation of the door, thereby enabling the door to be opened and closed stably.

[0008] The hanging means is characterized by having a support member provided on the ceiling side and a hanging bolt that can be supported by the support member, passes through the support member in a rotatable manner, and is attached to the top of the door. According to this feature, with a simple configuration, the door can be rotated around the vertical axis while the weight of the door is being placed on the support member through the hanging bolt.

[0009] The pivot support means is characterized by having a bearing member provided on the floor side, and a shaft member rotatably inserted into the bearing member and attached to the lower part of the door. According to this feature, the rotation of the door can be guided with a simple configuration.

[0010] The door is characterized by having a plurality of divided bodies arranged in the vertical direction, and a core material inserted into hollow vertical rods in a pair of adjacent divided bodies vertically to reinforce the connection between them. This feature makes it easy to manufacture, transport, and assemble the door. In addition, the connection between the hollow vertical rods of a pair of vertically adjacent sections can be reinforced with a core material, so the force used to operate one section can be efficiently transmitted to the other section.

[0011] The core material is characterized in that it is provided on both left and right ends of the vertical rods. This feature ensures structural strength at the connection points between the hollow vertical rods of a pair of adjacent vertically spaced segments, while the connecting points of the vertically connected segments allow for the release of forces acting in the twisting direction between the upper and lower segments and forces acting in the thickness direction of the door.

[0012] The core material is characterized in that it can be housed in at least one of the vertical rods. This feature allows for a reduction in the space required for assembly of the door.

[0013] The pair of adjacent vertically adjacent segments is characterized in that the back surfaces of the U-shaped horizontal rod provided at the lower end of the upper segment and the U-shaped horizontal rod provided at the upper end of the lower segment are connected to each other. According to this feature, by connecting the horizontal rods, which have high structural strength, a pair of adjacent vertically adjacent divided bodies can be firmly connected. [Brief explanation of the drawings]

[0014] [Figure 1]1 is a perspective view of a movable partition device according to an embodiment of the present invention, showing a state in which the door is open. FIG. [Figure 2] (a) is a front view of the door, and (b) is a side view of the door when the door is closed. [Figure 3] FIG. 2 is an enlarged front view of a portion of the frame. [Figure 4] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 5] FIG. 10 is a perspective view for explaining the connection of the divided bodies. [Figure 6] 10(a) to 10(c) are diagrams for explaining the connection of the divided bodies. [Figure 7] FIG. 2(b) is an enlarged view of a part of the cross section BB in FIG. 2(a). [Figure 8] FIG. 2(b) is an enlarged view of a part of FIG. 2(a). DETAILED DESCRIPTION OF THE INVENTION

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the movable partition device according to the present invention will be described below with reference to the accompanying drawings. [Example]

[0016] A movable partition device according to an embodiment will be described with reference to Figures 1 to 8. In the following description, the directions indicated by arrows in each figure are the directions of the movable partition device.

[0017] As shown in Figure 1, the movable partition device 1 of this embodiment is used to form a wall surface by connecting multiple partition panels 2, 2, ... and to divide an indoor space R, such as an office, exhibition hall, conference room, etc., into specified sections.

[0018] The movable partition device 1 of this embodiment comprises a plurality of partition panels 2, 2, ..., a traveling rail 3 on which the plurality of partition panels 2, 2, ... are suspended so that they can travel, a storage 4 for storing the partition panels 2, and a door 5 for opening and closing an opening E provided in an interior wall W that defines an interior space R. Note that Fig. 1 shows a state in which the door 5 has been rotated to open the opening E, and Fig. 2 shows a state in which the door 5 is closed and the opening E is blocked.

[0019] The traveling rail 3 is suspended from a frame (not shown) on the ceiling C side of the indoor space R by a suspension member (not shown), and is provided so that its lower end is flush with the ceiling C. The traveling rail 3 traverses the indoor space R and is pulled into the hangar 4 through an opening E.

[0020] The hangar 4 is a space partitioned from the interior space R by an interior wall W, and although not shown directly in the drawing, it is capable of storing a plurality of partition panels 2, 2, . . .

[0021] In this embodiment, the hangar 4 is adjacent to the indoor space R with the indoor wall W in between, but this is not limited to this and another space, passageway, etc. may be provided between the indoor space R and the hangar 4. Also, in this embodiment, the opening E that can be opened and closed by the door 5 is configured to be provided in the indoor wall W, but this is not limited to this and may be provided, for example, in a wall that separates the passageway and the hangar, as long as it is provided along the path of movement along which the partition panel 2 is moved.

[0022] As shown in Fig. 2, the door 5 is supported so as to be rotatable around a vertical axis by a suspension means 6 and a pivot means 7. Fig. 2 shows a state in which the door 5 has been rotated to close the opening E, and the door 5 and the interior wall W are disposed flush with each other.

[0023] The door 5 includes a frame 50 and a board 51 that covers the front and rear of the frame 50, and is 10 m high and weighs 1000 kg. The height and weight of the door 5 may be changed as appropriate.

[0024] In addition, in this embodiment, the board 51 is composed of multiple gypsum boards connected in the vertical direction and a thin metal plate attached to the front side of the boards, but this is not limited to this, and wallpaper may be attached, a resin plate may be fixed, the gypsum boards may be exposed, or the boards may be changed as appropriate depending on the desired appearance.

[0025] The frame 50 has three divided bodies 50A, 50B, 50C connected in the vertical direction, and a plurality of core members 52, 52, . . .

[0026] Each of the segments 50A to 50C has a plurality of vertical rods 53, 54, ... and a plurality of horizontal rods 55, 56, 57, .... Common features will be explained using the upper segment 50A as an example, and explanations of the middle segment 50B and the lower segment 50C will be simplified. Also, for convenience of explanation, the explanation of the upper segment 50A may cite components illustrated in the middle segment 50B as examples.

[0027] 3 and 4, vertical rods 53, 53 are disposed at the left and right ends of divided body 50A. Vertical rod 53 is a rod-shaped member made of metal and extending in the vertical direction, and has a slit 53a (see FIG. 4) extending in the vertical direction formed between a pair of inner plates 53b, 53b facing inward on the left and right sides of the rectangular tube.

[0028] In other words, the vertical rod 53 has a front plate, an outer plate, a rear plate, an inner plate 53b that protrudes rearward from the inner end of the front plate, and an inner plate 53b that protrudes forward from the inner end of the rear plate. The cross section of such a so-called lip groove-shaped member is considered to be included in the U-shaped cross section of the present invention. It goes without saying that the U-shaped cross section of a so-called groove-shaped member consisting of a front plate, an outer plate, and a rear plate is also included in the U-shaped cross section.

[0029] The vertical rods 53, 53, ... of the segments 50B, 50C are longer in the up-down direction than the vertical rods 53, 53 of the upper segment 50A. The vertical rods 53, 53 of the middle segment 50B have approximately the same length in the up-down direction as the vertical rods 53, 53 of the lower segment 50C.

[0030] 3, vertical rods 54, 54 are disposed on the right and left central sides of segment 50A in the left-right direction. Vertical rod 54 is a rod-shaped member made of metal, having a rectangular tubular shape and extending in the up-down direction. Vertical rod 54 may have a lip groove shape like vertical rod 53, or may be a solid rod-shaped member, and may be modified as appropriate.

[0031] The vertical rods 54, 54, ... of the segments 50B, 50C are longer in the up-down direction than the vertical rods 54, 54 of the upper segment 50A. The vertical rods 54, 54 of the middle segment 50B have approximately the same length in the up-down direction as the vertical rods 54, 54 of the lower segment 50C.

[0032] 2 to 5, a horizontal rod 55 is disposed at the upper end of the divided body 50A (see FIG. 2). The horizontal rod 55 is made of metal and is a rod-shaped member having a lip groove shape extending in the left-right direction, with a slit extending in the left-right direction formed between a pair of lower plates (see FIG. 4).

[0033] Referring to Figure 5, both left and right ends of the horizontal rod 55 are cut out in a rectangular shape in top view from the outside to the inside in the left-right direction. This cutout portion penetrates in the vertical direction. The upper end of the vertical rod 53 is fitted into the cutout portion of the horizontal rod 55 and welded to the horizontal rod 55. The upper end surface of the upper plate 55a of the horizontal rod 55 and the upper end surface of the vertical rod 53 are aligned so as to be approximately flush. The hollow portion of the vertical rod 53 is open toward the upper side.

[0034] The method of fixing the horizontal rods 55 and the vertical rods 53 is not limited to welding, but may be changed as appropriate using bolts and nuts, fitting, press fitting, crimping, etc. This also applies to the other rods that make up the frame 50.

[0035] Also, referring to FIG. 3, the vertical rod 54 is disposed so as to straddle the slit between the pair of lower plates of the horizontal rod 55, and is fixed to the pair of lower plates by welding.

[0036] 8, a channel rod, which is a groove-shaped U-shaped channel in a downward cross section, is fitted and fixed inside only the horizontal rod 55 of the upper divided body 50A for reinforcement. A nut 69A is welded and fixed to the channel rod. Hereinafter, a description of the channel rod will be omitted.

[0037] 2 to 5, a horizontal rod 56 is disposed at the lower end of the divided body 50A. The horizontal rod 56 is made of metal and is a rod-shaped member having a lip groove shape extending in the left-right direction, with a slit extending in the left-right direction formed between a pair of upper plates (see FIGS. 4 and 5).

[0038] Referring to Figure 5, both left and right ends of the horizontal rod 56 are cut out in a rectangular shape in top view from the outside to the inside in the left-right direction. This cutout portion penetrates in the vertical direction. The lower end of the vertical rod 53 is fitted into the cutout portion of the horizontal rod 56 and welded to the horizontal rod 56. The lower end surface of the lower plate 56a of the horizontal rod 56 and the lower end surface of the vertical rod 53 are aligned so as to be approximately flush. The hollow portion of the vertical rod 53 is open downward.

[0039] Also, referring to FIG. 3, the vertical rod 54 is disposed so as to straddle the slit between the pair of upper plates of the horizontal rod 56, and is fixed to the pair of upper plates by welding.

[0040] Referring to Figure 2, multiple horizontal rods 57, 57, ... are arranged in the vertical center of the segment 50A. Specifically, a total of eight horizontal rods are arranged, four on each side, vertically between the upper horizontal rod 55 and the lower horizontal rod 56. Furthermore, a total of sixteen horizontal rods 57 are arranged, eight on each side, vertically between the middle segment 50B and the lower segment 50C. The horizontal rods 57 are arranged at equal intervals in the vertical direction in the frame 50 to which the segments 50A, 50B, 50C are connected. The horizontal rods 57 are made of metal and are rod-shaped members that extend in the left-right direction and have a horizontal hat-like cross-section (see Figure 4).

[0041] 4, a plurality of ribs 53c, 53c, ... are formed on the front and rear plates of the vertical rod 53. The ribs 53c, 53c, ... are arranged at equal intervals in the vertical direction in the frame 50 to which the segments 50A, 50B, 50C are connected.

[0042] 3, the horizontal rods 57 can be positioned by abutting the lower ends of the horizontal rods 57 against the ribs 53c, 53c of the pair of left and right vertical rods 53, 53. In this positioned state, the horizontal rods 57 are welded and fixed to the vertical rods 53, 54, ..., thereby easily arranging the multiple horizontal rods 57 at equal intervals.

[0043] 3 to 5, the upper half of the core material 52 is inserted and fixed into the upper vertical rod 53, and the lower half is inserted into the adjacent lower vertical rod 53, connecting the vertically adjacent vertical rods 53, 53. The core material 52 is made of metal and is a rod-shaped member with a lip groove shape extending in the vertical direction, and a slit extending in the vertical direction is formed between a pair of outer plates facing outward on the left and right.

[0044] The core 52 has three through holes formed on the upper side of its inner plate 52a. The through holes are formed at equal intervals in the up-down direction in the center of the inner plate 52a in the front-to-rear direction. Nuts 52N aligned with the through holes are welded to the inner surface of the inner plate 52a, i.e., the side surface of the core 52 facing the hollow portion.

[0045] A bolt 52B inserted through a slit 53a of the pressing plate 52W and the vertical rod 53 is screwed into one nut 52N. The inner plates 53b, 53b of the vertical rod 53 are sandwiched between the pressing plate 52W and the inner plate 52a of the core material 52.

[0046] Next, the procedure for connecting each of the segments 50A to 50C will be described with reference to Figures 5 and 6, taking the procedure for connecting the upper segment 50A to the middle segment 50B as an example. Note that the procedure for connecting the middle segment 50B to the lower segment 50C, which is substantially the same procedure, will not be described here. Also, in Figure 6, a dot pattern is added to clearly show the core material 52.

[0047] 5 and 6(a), when connecting the upper divided body 50A and the middle divided body 50B, the entire core material 52 is housed within the vertical rod 53 so that the core material 52 does not protrude below the vertical rod 53 of the upper divided body 50A. At this time, it is preferable to tighten the bolt 52B with the nut 52N to fix the core material 52 so that it does not unintentionally slide within the vertical rod 53.

[0048] 5 and 6(b), the lower plate 56a of the lower horizontal rod 56 of the upper divided body 50A is brought into contact with the upper plate 55a of the upper horizontal rod 55 of the middle divided body 50B. The lower plate 56a and the upper plate 55a form the back surface of the U-shaped horizontal rod in the present invention, and are connected by tightening bolts and nuts inserted through the respective through holes. The horizontal rods 55, 55 may be connected by welding, caulking, or by any other suitable method.

[0049] The lower plate 56a and the upper plate 55a are connected by five bolts and nuts spaced equally apart in the left-right direction. This aligns the vertical rods 53, 53 at the right end with the vertical rods 53, 53 at the left end. In this state, the bolts 52B are loosened and each core member 52 is slid downward, i.e., toward the middle segment 50B, to easily insert the core members 52 into the vertical rods 53 of the middle segment 50B.

[0050] 5, a hook 53H having an L-shape in cross section is fixed to the upper center in the vertical direction of the inner plates 53b, 53b of the vertical rod 53 in the middle section 50B. The hook 53H is inserted into the slit 53a of the vertical rod 53 and has a protruding piece that protrudes into the internal space.

[0051] 6(c), when the core 52 is slid downward, it comes into contact with the protruding piece of the hook 53H, so that the core 52 can be positioned in a state where it is inserted approximately evenly into the upper vertical rod 53 and the lower vertical rod 53. It is also possible to prevent the core 52 from slipping out of the upper vertical rod 53. Then, by tightening the bolt 52B and the nut 52N, the core 52 can be fixed to the upper vertical rod 53, and the upper vertical rod 53 and the lower vertical rod 53 can be connected.

[0052] The length of the core material 52 inserted into the upper vertical rod 53 may be different from the length of the core material 52 inserted into the lower vertical rod 53. Furthermore, since the nut 52N onto which the bolt 52B is threaded can be changed as appropriate, the core material 52 can be fixed to the vertical rod 53 regardless of the length of the core material 52 inserted into the upper vertical rod 53.

[0053] 2(b), 4, and 7, in the frame 50 in which the segments 50A to 50C are connected, the front end faces of the horizontal rods 55, 56, 57... are arranged on approximately the same plane. Similarly, the rear end faces of the horizontal rods 55, 56, 57... are arranged on approximately the same plane.

[0054] 2(a), the structural strength of the upper divided body 50A is enhanced by a triangular rib plate secured to the upper horizontal rod 55 and the right-side vertical rod 53, and a triangular rib plate welded to the horizontal rod 55 and the left-side vertical rod 53. Similarly, the structural strength of the lower divided body 50C is enhanced by a triangular rib plate secured to the lower horizontal rod 56 and the right-side vertical rod 53, and a triangular rib plate welded to the horizontal rod 56 and the left-side vertical rod 53.

[0055] 7, the upper segment 50A has a horizontal rod 58 fixed to the upper end of its upper horizontal rod 55. The lower segment 50C has a horizontal rod 59 fixed to the lower end of its lower horizontal rod 56. The horizontal rod 59 also has a horizontal rod 59 fixed to the lower end of its lower horizontal rod 56.

[0056] The overhanging horizontal rods 58, 59 have overhanging portions 58a, 59a, etc. that overhang forward or rearward beyond the front or rear end faces of the horizontal rods 55, 56, 57, etc. The board 51 is positioned and fixed so as to be sandwiched vertically between the front overhanging portions 58a, 59a or the rear overhanging portions 58a, 59a. In addition, the multiple gypsum boards that make up the board 51 are fixed to the front or rear plates of the horizontal rods 55, 56, 57, etc.

[0057] Next, the suspension support means 6 and the pivot support means 7 will be described with reference to Figures 7 and 8. The suspension support means 6 includes a rail 60 suspended from the frame on the ceiling C side by a suspension member, a rod 61 inserted into the rail 60, a base 62 fixed to the rod 61, and a suspension bolt 63 inserted through the base 62 and fixed to the door 5. The rail 60, the rod 61, and the base 62 constitute the support member of the present invention, and are arranged above the ceiling C.

[0058] The rails 60 are a pair of crank-shaped members arranged opposite each other. The upper plates of the crank-shaped members are attached to a fixed plate fixed to the main body by fastening bolts and nuts. The lower plates 60a, 60b of the crank-shaped members are spaced apart in the front-to-rear direction so that the cylindrical portion 64a of the base material 64 can be inserted therethrough.

[0059] The rod material 61 is made of metal and is a lip groove-shaped rod-shaped member extending in the left-right direction, with a slit extending in the left-right direction between a pair of upper plates and a through-hole formed in the lower plate 61a.

[0060] The rod 61 is disposed within the rail 60 and is fixed in a state in which it is placed on the lower plates 60a and 60b.

[0061] The base 62 has a base material 64 formed in a cylindrical shape with a flange, and a lid material 65 fixed to the flange portion of the base material 64 with bolts.

[0062] The base material 64 is made of metal, and a cylindrical portion 64a extending in the vertical direction is inserted into a through-hole in the lower plate 61a of the rod material 61. A through-hole penetrating in the vertical direction is formed in the cylindrical portion 64a. An inward flange 64b is formed at the lower end of the cylindrical portion 64a, which protrudes toward the inner diameter side and reduces the diameter of the through-hole.

[0063] Two radial bearings 66, 66 and a cylindrical spacer 67 are arranged inside the cylindrical portion 64a. The upper radial bearing 66 abuts against the cover member 65, and the lower radial bearing 66 abuts against and is supported by the inward flange 64b.

[0064] Although the radial bearing 66 in this embodiment is a ball bearing, other types of radial bearings, such as roller bearings and plain bearings, may be used. The shape and type of the spacer may be changed or omitted depending on the type of radial bearing. The number of radial bearings 66 may also be changed.

[0065] In addition, the base material 64 has a flange portion that projects radially outward from the upper end of the cylindrical portion 64a and is fixed to the lower plate 61a by welding.

[0066] The lid member 65 is made of metal and formed in a disk shape. A through hole that passes through in the vertical direction is formed in the lid member 65. The lid member 65 has an inward flange 65a at the bottom end that protrudes toward the inner diameter side and reduces the diameter of the through hole, and a step that opens upward and inward is formed.

[0067] A single thrust bearing 68 is disposed on the stepped portion of the cover member 65. The thrust bearing 68 is in contact with and supported by the inward flange 65a. Note that although the thrust bearing 68 in this embodiment is a thrust ball bearing, it is not limited to this and other types of thrust bearings, such as a thrust cylindrical roller bearing or a sliding bearing, may also be used.

[0068] The body 63a of the hanging bolt 63 is inserted through the through-holes of the base material 64 and the cover material 65, the through-hole of the ceiling C, the through-hole of the lower plate 58b of the protruding horizontal rod 58 in the upper section 50A, and the through-hole of the upper plate 55a of the upper horizontal rod 55, and is screwed into the nut 69A. The height position of the door 5 can be adjusted depending on the amount by which the body 63a protrudes downward from the nut 69A. The head 63b of the hanging bolt 63 is placed on a thrust bearing 68.

[0069] The body 63 a of the hanging bolt 63 is inserted through a thrust bearing 68 , an upper radial bearing 66 , a spacer 67 and a lower radial bearing 66 , and is rotatable relative to the base 62 .

[0070] Additionally, a nut 69B is threadedly engaged with the body portion 63a above the lower plate 58b of the projecting horizontal rod 58. The nut 69B can be operated from the side of the projecting horizontal rod 58 through an opening 58c (see FIG. 8) formed in the side plate of the projecting horizontal rod 58.

[0071] Nut 69A may not be welded as described above, but may be tightened so that nuts 69A and 69B approach each other to clamp lower plate 58b and upper plate 55a together. Even with this configuration, the height position of door 5 can be adjusted by nuts 69A and 69B.

[0072] The pivot support means 7 includes a bearing body 70 as a bearing member fixed to the frame on the floor F side, and a shaft member 71 fixed to the door 5 and inserted through the bearing body 70.

[0073] The bearing body 70 has a base material 72 fixed to the frame on the floor F side, and a cylindrical member 73 fixed to the upper plate of the base material 72.

[0074] The tubular member 73 is made of metal and is formed into a cylindrical shape with a flange. The tubular portion of the tubular member 73 is inserted into a through-hole formed in the upper plate of the base material 72, and the flange is fixed to the upper plate of the base material 72 by welding.

[0075] The shaft member 71 has a shaft portion 71a extending in the vertical direction and a flange portion 71b extending radially outward from the upper end of the shaft portion 71a.

[0076] Here, a cylindrical member 74 is welded and fixed to the lower plate 56a of the lower horizontal rod 56 of the lower section 50C. A through hole that passes through in the vertical direction is formed in the cylindrical member 74. This through hole is fixed at a position where its axis substantially coincides with the axis of the through hole formed in the lower plate 56a of the lower horizontal rod 56 of the lower section 50C and the axis of the through hole formed in the upper plate 59b of the protruding horizontal rod 59.

[0077] In addition, the tubular member 74 is fixed at a position where the axis of its through hole approximately coincides with the axis of the through hole of the protruding horizontal rod 58 in the upper section 50A, through which the body 63a of the hanging bolt 63 is inserted, and the axis of the through hole of the upper horizontal rod 55.

[0078] The shaft portion 71a of the shaft member 71 is inserted through the tubular member 74, the lower horizontal rod 56, the protruding horizontal rod 59, and the tubular member 73, and is rotatable relative to these. In other words, the shaft support means 7 has a pivot structure in which the shaft portion 71a of the shaft member 71 is inserted into the tubular member 73, so that the frame on the floor F side does not bear the weight of the door 5. The axis of the shaft portion 71a approximately coincides with the axis of the through holes of the tubular members 73 and 74. In addition, the axis of the shaft portion 71a approximately coincides with the axis of the trunk portion 63a of the suspension bolt 63.

[0079] Furthermore, an annular groove 71c is formed in the shaft member 71, recessed radially inward from the outer circumferential surface of the shaft portion 71a. A bolt 74a is threaded into the peripheral wall of the cylindrical member 74. The bolt 74a of the cylindrical member 74 is threaded into the inner radial side and fitted into the annular groove 71c, thereby restricting the shaft member 71 from moving up and down, i.e., from slipping out of the cylindrical member 73.

[0080] 7, bolt 74a is shown by a two-dot chain line because it is located in a different position. More specifically, bolt 74a is formed in a position that overlaps with the slit in the lower horizontal rod 56 in the vertical direction, and can be operated through the slit.

[0081] When the flange portion 71b of the shaft member 71 is in contact with the cylindrical member 74, the annular groove 71c is positioned approximately in the same vertical direction as the bolt 74a, facilitating alignment.

[0082] A radial bearing 75 is interposed radially between the cylindrical member 73 and the shaft portion 71a of the shaft member 71. Note that the radial bearing 75 in this embodiment is a cylindrical sliding bearing made of low-friction resin or metal, but is not limited to this, and other types of radial bearings such as ball bearings and roller bearings may also be used.

[0083] As described above, the movable partition device 1 of this embodiment can support the weight of the door 5 with the suspension means 6, while guiding the rotation of the door 5 with the pivot support means 7. This allows the door 5 to be opened and closed stably.

[0084] Furthermore, the suspension support means 6 and the shaft support means 7 are arranged so that their respective axes are coaxial, more specifically, the suspension bolt 63 and the shaft member 71 are arranged so that their respective axes are coaxial, allowing the door 5 to rotate smoothly.

[0085] Furthermore, in the movable partition device 1, the weight of the door 5 is supported by the frame on the ceiling C side through the suspension means 6, so that reinforcement work on the floor F side can be omitted.

[0086] The suspension support means 6 has a rail 60, a rod 61, a base 62, and a suspension bolt 63 that is supportable by and rotatably penetrates these and is attached to the top of the door 5. With such a simple configuration, the door 5 can be rotated around a vertical axis through the suspension bolt 63 while the weight of the door 5 is left on the rail 60, rod 61, and base 62.

[0087] Furthermore, since the head 63b of the hanging bolt 63 is supported by the base 62 with the thrust bearing 68 interposed therebetween, the hanging bolt 63 can be smoothly rotated around the vertical axis while bearing the weight of the door 5.

[0088] Furthermore, radial bearings 66, 66 are interposed between the suspension bolt 63 and the base 62, allowing smooth rotation.

[0089] Furthermore, the hanging bolt 63 is fitted with two radial bearings 66, 66 spaced apart in the vertical direction, in other words, in the axial direction of the hanging bolt 63, which prevents the hanging bolt 63 from tilting relative to the base 62 and causes the head 63b of the hanging bolt 63 to come into contact with the thrust bearing 68 around the circumferential direction, thereby distributing and supporting the load of the door 5. Furthermore, since the load of the door 5 is distributed across the two radial bearings 66, 66, the hanging bolt 63 can be rotated around the vertical axis more smoothly.

[0090] The pivot support means 7 has a bearing body 70 and a shaft member 71 that is rotatably inserted into the bearing body 70 and attached to the bottom of the door 5. With such a simple configuration, the rotation of the door 5 can be guided.

[0091] Furthermore, since a radial bearing 75 is interposed between the shaft member 71 and the bearing body 70, not only is it possible for the shaft member 71 to rotate smoothly, but tilting relative to the bearing body 70 is prevented, and the head 63b of the hanging bolt 63 is in contact with the thrust bearing 68 around the circumference, which distributes and supports the load of the door 5, allowing the hanging bolt 63 to rotate more smoothly around the vertical axis.

[0092] Furthermore, since the rod 61 can slide along its longitudinal direction within the rail 60, the positioning of the pivot support means 7 can be easily performed.

[0093] Furthermore, the rod 61 is guided by the cylindrical portion 64a of the base material 64 disposed between the lower plates 60a, 60b when sliding within the rail 60 and when positioned in the front-rear direction, facilitating alignment of the shaft support means 7. This allows the axis of the body 63a of the suspension bolt 63 to be positioned approximately coaxially with the shaft portion 71a of the shaft member 71 with high precision.

[0094] Furthermore, since the door 5 is suspended by the suspension means 6 at a position closer to the center in the left-right direction than the side ends, it is possible to reduce the difference in the width direction of the door 5, i.e., the load on one side in the left-right direction and the load on the other side, with the suspension bolt 63 as the base point. In other words, it is possible to reduce the load that tends to tilt the suspension bolt 63.

[0095] Furthermore, since the hanging bolts 63 of the door 5 are fixed to the upper plates 55a of the horizontal rods 55 arranged at the top, it is possible to fix large hanging bolts 63 more easily and with greater strength than when they are fixed to the vertical rods 53 which are open at the top. Note that the widthwise position of the door 5 suspended by the suspension means 6 may be changed as appropriate.

[0096] Furthermore, the door 5 has a frame 50 which has three divided bodies 50A, 50B, 50C arranged in the vertical direction and a plurality of core materials 52, 52, ..., making it easy to manufacture, transport, and assemble the door 5.

[0097] Furthermore, the connection portions between the vertical rods 53, 53 of the vertically adjacent segments 50A, 50B and between the vertical rods 53, 53 of the segments 50B, 50C of the door 5 are reinforced with core materials 52, 52, so that the operating force received by the segment 50C when opening and closing the door can be efficiently transmitted to the other segments 50A, 50B.

[0098] Furthermore, while the core material 52 is provided on the vertical rods 53, 53 at both ends, it is not provided on the central vertical rods 54, 54. This ensures the structural strength of the connection portions between the vertical rods 53, 53 of the vertically adjacent segments 50A, 50B and between the vertical rods 53, 53 of the segments 50B, 50C, while allowing the connection portions between the horizontal rods 55, 56 of the vertically adjacent segments 50A, 50B and between the horizontal rods 55, 56 of the segments 50B, 50C to release forces acting in the twisting direction between the upper segment 50A and the middle segment 50B, for example, and forces acting in the thickness direction of the door 5, i.e., the front-to-rear direction.

[0099] Furthermore, core material 52 extending between segments 50A and 50B can be accommodated in vertical rod 53 of upper segment 50A, and core material 52 extending between segments 50B and 50C can be accommodated in vertical rod 53 of middle segment 50B. This eliminates the need for a fitting margin for fitting one vertical rod into the other, thereby reducing the space required to assemble door 5.

[0100] Furthermore, a pair of vertically adjacent segments 50A, 50B are connected by the lower plate 56a of the horizontal rod 56 provided at the lower end of the upper segment 50A and the upper plate 55a of the horizontal rod 55 provided at the upper end of the middle segment 50B. This is also true for segments 50B, 50C. By connecting the horizontal rods 55, 56, which have high structural strength, the pair of vertically adjacent segments 50A, 50B or segments 50B, 50C can be firmly connected.

[0101] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes modifications and additions that do not deviate from the gist of the present invention.

[0102] For example, in the above embodiment, the suspension support means is described as including a rail body, a rod-shaped member, a base, and a suspension bolt, but this is not limited thereto, and the suspension bolt may be directly supported by the ceiling frame or the ceiling. In such a configuration, the ceiling frame or the ceiling becomes the support member.

[0103] The movable partition device may further include a suspension member attached to the top of the door, which has a running rail formed along the swing range at a position spaced apart in the width direction of the door and a roller that can roll within the running rail. With this structure, the door can be opened and closed more stably.

[0104] Furthermore, in the above embodiment, the suspension means is described as being configured such that the suspension bolt, which is the suspension member, is rotatably suspended from the support member and is fixed so as not to be rotatable relative to the door, but this is not limited to this, and the suspension member may be fixed so as not to be rotatable to the support member, and the door may be suspended so as to be rotatable relative to the support member.

[0105] In the above embodiment, the shaft support means is described as including a bearing body and a shaft member, but this is not limited thereto, and the shaft member may be rotatably supported directly on the floor frame or the floor. In such a configuration, the floor frame or the floor serves as the bearing member.

[0106] Furthermore, in the above embodiment, the support means has been described as a configuration in which the shaft member is rotatably supported by the bearing member and is fixed so as not to be rotatable relative to the door, but this is not limited to this, and the shaft member may be fixed so as not to be rotatable to a floor-side frame or a member fixed to the floor, and the shaft member may support the door so as to be rotatable relative to the door.

[0107] Furthermore, in the above embodiment, the frame is described as being composed of three connected segments, but this is not limited to this, and the frame does not have to be divided, and the number of segments may be changed as appropriate as long as it is composed of two or more segments.

[0108] In the above embodiment, the core material is provided only on the rods at both the left and right ends, but this is not limiting and the core material may be provided on rods other than those at both ends.

[0109] In the above embodiment, the core material can be accommodated in the vertical rod of the upper segment of a pair of upper and lower segments, but this is not limited to this, and the core material may be accommodated in the vertical rod of the lower segment, or in the vertical rods of the segments on both sides. Furthermore, if there are three or more segments as in this embodiment, a segment other than the top or bottom may be able to accommodate a core material that is provided across the segment above it and a core material that is provided across the segment below it. [Explanation of symbols]

[0110] 1. Movable partition device 2 Partition panels 3 Running rail 4 Hangar 5 doors 6 Hanging support means 7 Pivoting means 50 frames 50A~50C division body 52 Core material 53 Vertical rod 55 Horizontal rod (U-shaped horizontal rod provided at the upper end of the divided body) 55a Upper plate (the back of the U-shaped horizontal rod at the upper end of the divided body) 56 Horizontal rod (U-shaped horizontal rod provided at the lower end of the divided body) 56a Lower plate (the back of the U-shaped horizontal rod at the upper end of the divided body) 60 Rail body (support member) 61 Rod (supporting member) 62 Base (support member) 63 Hanging bolt 66 Radial bearing 68 Thrust bearing 70 Bearing body (bearing member) 71 Shaft member 75 Radial bearing C Ceiling E Opening F Bed R Indoor Space

Claims

1. A movable partition device comprising a partition panel suspended and supported so as to be movable along a traveling rail, a storage facility for storing the partition panel, and a door for opening and closing an opening through which the partition panel passes, A movable partition device having a suspension means for suspending the upper part of the door so that it can rotate about a vertical axis, and a pivot means for pivotally supporting the lower part of the door.

2. The movable partition device as described in claim 1, wherein the suspension support means comprises a support member provided on the ceiling side and a suspension bolt that is supportable and rotatable through the support member and attached to the top of the door.

3. 3. A movable partition device as described in claim 1 or 2, wherein the support means comprises a bearing member provided on the floor side and an axis member rotatably inserted into the bearing member and attached to the lower part of the door.

4. The movable partition device described in claim 1, wherein the door has a plurality of divided bodies arranged in the vertical direction and a core material inserted into hollow vertical rods of a pair of adjacent divided bodies above and below to reinforce the connection between them.

5. 5. The movable partition device according to claim 4, wherein the core material is provided on both left and right ends of the vertical rod.

6. 5. The movable partition device according to claim 4, wherein the core material is receivable in at least one of the vertical rods.

7. A movable partition device as described in any one of claims 4 to 6, wherein the pair of adjacent vertically adjacent partitions are connected by the backs of a U-shaped horizontal rod provided at the lower end of the upper partition and a U-shaped horizontal rod provided at the upper end of the lower partition.

Images