JP4412677B2 - Rotating folding door - Google Patents

Description

  The present invention relates to a rotary folding door configured such that a first door and a second door adjacent to each other along a vertical plane are connected to each other by a vertical connecting frame member and hinge means so as to be foldable.

  In this type of rotary folding door, each vertical rod on the connecting side of the first door and the second door is formed in an arc shape in cross section. Each door has a door panel and a vertical gutter formed integrally or separately, and there is a gap between the vertical gutters between both doors, so that the gap is closed when the door is turned to close the room. It is configured. Therefore, when the door is closed, an unexpected accident occurs in which a person pinches his / her hand or toe in the gap between the vertical shafts of both doors. Therefore, a door connection structure that can prevent such an accident is proposed. Has been.

  For example, the movable connection panel disclosed in Japanese Patent Application Laid-Open No. 2001-262949 has an end configuration in which a front end surface of a vertical shaft is a curved surface based on a circular arc-shaped cross section, and a concave portion is provided on a curved panel body side portion. A panel having a cross section, facing the curved surfaces with a slight gap between them, an interposing member having a cross section formed with a wide front and rear portion and a narrow middle portion along both curved surfaces. The panels are joined and rotatably connected. According to this movable connection panel, the panel end surface is a curved surface, and the panel gap is blocked by the interposition member. Therefore, when the indoor space is closed, the opposite side of the partition is not seen through, and There is no risk of pinching.

In addition, the device for connecting links disclosed in Japanese Patent Publication No. 9-512597 is provided with a pair of connecting members 14 and 15 at each end of the edge 4 of the adjacent structural members 1 and 2, and each of the connecting members. Two door plates, for example, provided with corresponding movements by the tooth-rim segments 23, 24 and provided with means for holding the center of curvature of the tooth-rim segments 23, 24 at a constant distance from each other , A device for connecting links between two structural members such as doors and door frames, table plates, etc., wherein said means is composed of an elongated contoured body 3, the body 3 being smooth and closed The body 3 is designed to extend between the two pairs of connecting members 14 and 15 and to fill a space between the edges 4 of the structural members 1 and 2. That the contoured body 3 is lateral Having rounded sections 6, 7 located at each end in the plane, a central constricted section having a smaller cross section than the rounded sections 6, 7, and said edge 4 each having a complementary rounded section The rounded portion extends along an arc equal to or smaller than the rounded portions 6 and 7 of the contoured body 3. And in order to prevent the body 3 contoured at the center along the adjacent edges from releasing the engagement with the cylindrical segment female parts 4, 5, the faces 4, 5 are always overhanged parts 4 '. , 5 'and guides the knee joint (main body) 3 in this way. The planes 4 and 5 preferably extend along an arc having an angle equal to 120 to 210 degrees (preferred angle is 165 degrees).
JP 2001-262949 A Japanese National Publication No. 9-512597

  However, in the case of the structure in which the interposition member is joined to the gap between the vertical shafts having a circular arc cross section of each door as in the movable connection panel of the above-mentioned Japanese Patent Application Laid-Open No. 2001-262949, the interposition member is used after a long period of use. In addition to being worn or lost in elasticity, there is a risk that the interposition member will be displaced from the gap of the connecting portion of the door and friction between the door and the interposition member will increase. In such a case, the door may not be able to be folded smoothly, or the intervention member may be damaged or detached. In addition, due to wear and displacement of the intervention member, not only does the friction noise become intense when the door is rotated, but the intervention member may be damaged.

  Further, in the device for the connecting link disclosed in the above-mentioned Japanese National Publication No. 9-512597, the main body 3 contoured at the center along the adjacent edge part disengages the cylindrical segment female parts 4 and 5 from each other. In order to prevent this, the surfaces 4 and 5 are always provided with overhang portions 4 'and 5' to guide the knee joint (main body) 3, and the surfaces 4 and 5 are preferably 120 to 210 degrees (preferably Is an arc extending at an angle equal to 165 degrees). Therefore, the adjacent structural member can be opened and closed in the direction of pulling the overhang portions 4 ′ and 5 ′ toward the position where the overhang portions 4 ′ and 5 ′ are in contact with each other, but the overhang portions 4 ′ and 4 ′ can be opened and closed. , 5 'cannot be opened in the pushing direction, so that the opening / closing direction cannot be changed after installation, which is inconvenient. Further, the adjacent structural members are structured such that the curved centers of the segments with teeth-rims are held at a constant distance from each other, and the edges rotate around the peripheral surface of the body, so that the structure is formed by changes in humidity and temperature. If the member is warped, if the gap is not provided between the edge and the peripheral surface of the main body, the friction between the edge of the structural member and the peripheral surface of the main body may increase, and the door may not be smoothly folded. Further, if the gap between the edge portion and the peripheral surface of the main body is increased, the heat insulation and sound insulation between the inner and outer spaces blocked by the structural member are deteriorated, and the gap wind passes and the heat retention is deteriorated.

  The present invention solves the above-mentioned problem, and can be opened and closed while projecting the vertical connecting frame member toward the front side or the opposite side, and when folding the door, a person puts a hand or toe in the gap between the doors. Therefore, the present invention provides a rotary folding door that can be folded smoothly even when used for a long period of time and that does not generate frictional noise.

According to the first aspect of the present invention, the first door and the second door are adjacent to each other along a vertical plane, and the first door and the second door protrude outward from both ends of each plane in which each vertical frame member is adjacent. Each of the vertical frame members has a U-shaped cross section, and the hinge means provided at the upper and lower ends of the vertical connection frame members arranged in parallel with the longitudinal direction of the vertical frame members. The hinged door is configured to be foldable with the ends connected and sandwiching the vertical connecting frame member, wherein the hinge means includes a pair of gears that mesh with each other and a pair of arms that rotate coaxially with the gears. The first door and the second door are fixed to the arm members at the upper and lower ends, and protrude from the outer peripheral surface of the vertical connecting frame member and both ends in the width direction of the vertical frame members. It is configured to be rotatable with a gap of a predetermined interval between the vertical frame members, and the gap is provided to each protrusion of each vertical frame member. Spacers Gutame is mounted along the length direction, wherein each spacer is configured so as to rotate along the outer peripheral surface of the vertical connecting frame member about the axis of the gears, the arm member is A tongue formed from a metal plate, having an annular portion formed at one end, a tongue extending from the annular portion, bent at a right angle from the middle to form a vertical stopper, and extending from the stopper Is a rotary folding door that is formed with a mounting piece that is folded at a right angle in front of a predetermined length on the other end and attached to the upper or lower end face of each door .

  According to a second aspect of the present invention, the longitudinal connecting frame member is arranged so that two C-shaped members having a central axis and having a C-shaped cross section are opposed to each other so that the arc portion is on the outer side, and the cross-section is The rotary folding door according to claim 1, which has a glasses shape, and the gear and the arm material are coaxially mounted on a central axis of the C-shaped member.

  According to a third aspect of the present invention, in the first or second aspect, the pair of gears is provided with a gear cover having a transverse section substantially equal to a transverse section of the longitudinal connecting frame member. It is a rotation folding door of description.

According to a fourth aspect of the present invention, the first door and the second door are adjacent to each other along a vertical plane, and the first door and the second door are outside the both ends of each plane where the vertical frame members are close to each other. Each of the vertical frame members is provided with hinge means provided at the upper and lower ends of the vertical connection frame member, which has a U-shaped lateral cross section and is arranged in parallel with the longitudinal direction of the vertical frame members. A rotary folding door configured to be foldable with the upper and lower ends connected to each other with the vertical connecting frame member interposed therebetween, wherein the hinge means includes a pair of gears that mesh with each other and a pair of gears that rotate coaxially with the gears. The first door and the second door are fixed to the arm members at the upper and lower ends, and the outer peripheral surface of the vertical connecting frame member and both ends in the width direction of the vertical frame members. It is configured to be rotatable with a gap of a predetermined interval between the protrusions of the vertical frame members, and the protrusions of the vertical frame members Spacer for closing between are mounted along the length direction, is constructed the so each spacer is rotated along the outer peripheral surface of the vertical connecting frame member about the axis of the gears, the arms The material is formed of a metal plate, an annular part is formed at one end, a tongue piece extends from the annular part and is bent at a right angle from the middle, and is a flat surface between the protruding parts in the width direction of the vertical frame member The rotary folding door is characterized in that a mounting piece to be attached to is formed .

  According to the rotary folding door of the present invention, a long vertical connecting frame member is interposed between the two doors so that it can be folded, and the two doors have two shafts separated by the vertical connecting frame member as fulcrums. Each of them is pivoted so that the vertical connecting frame member can be opened and closed while projecting to the near side or the opposite side, so when folding the door, a person puts his hand or toes in the gap between the doors Accidents that occur can be reliably prevented.

  In addition, the left and right doors are attached to the upper and lower ends of the vertical connection frame member via hinge means, and each door is firmly supported by the hollow frame-shaped vertical connection frame member. However, it can be smoothly rotated and folded, and a squeak noise is not generated when the door is folded.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view of the whole door facility provided with a rotary folding door, FIG. 2 is an explanatory view showing a rotating state of the rotary folding door in FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is an exploded perspective view of the connecting portion in the first embodiment , FIG. 5 is an exploded front view of a part of the hinge means of FIG. 1, FIG. 6 is a longitudinal sectional view of the hinge means of FIG. It is a schematic explanatory drawing for demonstrating the effect | action of a hinge means.

  In FIG. 1, the basic structure of the rotary folding door 1 is a combination of a first door 3 having a wide width, a second door 4 having a small width, and a vertical connecting frame member 5 in the vertical direction along the vertical shaft of each door. Both doors 3 and 4 are attached to a door-shaped door frame body 2. The second door 4 is rotatably supported by the right end portion of the door frame body 2. And the 1st door 3 and the 2nd door 4 are arrange | positioned adjacently along one vertical surface via the vertical connection frame member 5, and each upper and lower ends of the 1st door 3 and the 2nd door 4 The upper and lower ends of the vertical connecting frame member 5 are pivotally connected by hinge means 6 described later, and can be folded.

  The rotary folding door 1 is an operation of pushing or pulling the vertical connecting frame member 5 interposed between the first door 3 and the second door 4 or an operation of rotating the free end of the first door 3. Therefore, the suspension wheel 7 provided at the upper end of the first door 3 is rotated along the suspension rail member 10 provided at the upper part of the door frame 2. The door frame 2 is opened by being folded so as to overlap each other while traveling and the first door 3 is drawn toward the second door 4.

The door frame body 2 has a gate shape composed of left and right vertical frame members 8 and 8 and an upper frame member 9 which is integrated by fixing both ends to the upper ends of the left and right vertical frame members 8 and 8. As shown in FIG. 2, the pair of vertical frame members 8 and 8 has a structure in which a column member 8b is joined to an elongated vertical bent piece 8a, and each bent piece 8a has a width direction. A recess 8c that is shallowly recessed is provided.
Moreover, the cover members 13 and 14 which comprise the outer vertical cage | basket of the 1st door 3 and the 2nd door 4 face the recessed part 8c of both the said vertical frame members 8 and 8. FIG.

  In FIG. 1, the long cover member 13 having a semicircular cross section that is in contact with or close to the vertical frame member 8 is attached to the left side surface of the first door 3. Bar magnets (not shown) are accommodated in the cover member 13 and the vertical frame member 8 on the side that comes into contact with or close to the cover member 13, respectively, the rotary folding door 1 is closed, and the first door 3 is attached to the door frame. When brought into contact with the vertical frame member 8 of the body 2, the first door 3 is closed by the door frame body 2 by a magnetic action. Further, a semi-cylindrical long cover member 14 that houses a rotating shaft that rotatably supports the second door 4 is attached to the right side surface of the second door 4 in FIG.

  A suspension rail member 10 is attached to the lower portion of the upper frame body 9. The suspension rail member 10 has a rectangular frame shape in the longitudinal section, and an opening 10b having a predetermined width is provided in the lower part, and rails 10a and 10a are formed on both sides of the inner surface of the lower part. The suspension wheel 7 composed of four wheels is provided with a suspension shaft 7a extending downward. The tip of the suspension shaft 7a is fixed vertically to the vicinity of the center of the upper surface of the first door 3, and the suspension shaft 7a moves on the rails 10a, 10a when the suspension vehicle 7 travels on the rails 10a, 10a. The first door 3 is moved to the second door while moving in the left-right width direction of the door frame body 2 along the opening 10b formed by the gap between the first door 3 and the vertical connecting frame member 5 protruding toward the front side or the opposite side. It can be rotated so that it folds to the 4 side.

  In addition, an air damper 15 is provided in the suspension rail member 10 near the end of the door frame 2 on the vertical frame member 8 side, and the suspension shaft 7a is fixed when the doors 3 and 4 are closed. When a part of the suspension wheel 7 comes into contact with the tip of the piston rod 15a of the air damper 15, the closing speed of the first door 3 is reduced.

  A hinge 14 a having a rotation axis in the vertical direction is embedded in the cover member 14 and attached to the upper right end portion in FIG. 1 of the door panel 12 that forms the main body of the second door 4. Further, the upper portion of the hinge 14a is fixed to the suspension rail member 10 of the door frame 2 with a screw via a bracket 14b. A cylindrical hinge 14 c is embedded in the cover member 14 at the lower right end of the door panel 12 as shown in FIG. A rotating shaft 14d is fitted in the cylinder of the hinge 14c, and the door panel 12 is rotatably supported by the rotating shaft 14d. The rotating shaft 14 d is implanted in a thrust bearing (not shown), and the thrust bearing is fixed to a horizontal protruding piece 8 d of a bracket attached to the right vertical frame member 8 of the door frame body 2. Therefore, the load of the second door 4 is received by the planting surface of the rotating shaft of the thrust bearing. Thereby, the upper and lower ends of the second door 4 are supported rotatably at the right end of the door frame body 2.

  The door panel 11 constituting the main body of the first door 3 has a door frame body whose upper surface is supported by the suspension shaft 7a at a position near the center in the width direction, that is, at a position corresponding to the radius of rotation of the second door 4. The upper and lower ends of the connecting portion with the second door 4 on the right side thereof are connected to the upper and lower ends of the vertical connecting frame member 5 so as to be foldable. At the same time, the left upper and lower ends of the second door 4 and the upper and lower ends of the vertical connecting frame member 5 are connected to each other so as to be foldable, and are attached to the door frame 2.

  The suspension vehicle 7 can travel on the rails 10a and 10a by four wheels 7c rotatably attached to the base plate 7b. The travel range is from a position when the revolving door 3 is in a closed state to a position near the right end of the upper frame body 9 when the revolving door 3 is fully opened.

  Next, referring to FIG. 3 to FIG. 6, the upper right and lower ends of the first door 3 are foldably connected to the upper and lower ends of the vertical connecting frame member 5 and the left upper and lower ends of the second door 4. A structure in which the upper part and the upper and lower end parts of the vertical connection frame member 5 are foldably connected and supported will be described.

  The first door 3 and the second door 4 are provided with vertical frame members 16 and 16 for reinforcement as vertical rods on the left and right opposing side surfaces of the door panels 11 and 12. The upper and lower ends of each vertical frame member 16 are formed of a metal plate, and have an annular portion 22b having a center hole 22a at one end and a gear mounting hole 22f provided on both sides adjacent to the center hole 22a. An arm material 22 is provided.

  The arm member 22 has a ring-shaped portion 22b serving as a gear mounting portion. A tongue piece 22c extends on the same surface from the ring-shaped portion 22b, and the tongue piece 22c is bent at a right angle from the middle to be a vertical stopper portion 22d. The tongue piece extending from the stopper portion 22d is folded at a right angle in front of a predetermined length on the other end, and the arm material 22 is placed on the upper and lower sides of the door panel 11 or 12 from the other end to the predetermined length in front. The mounting piece 22e is attached to the end face. The mounting piece 22e is formed in parallel with the annular portion 22b, and a plurality of mounting holes 22g to the door panels 11 and 12 are provided.

  The reinforcing vertical frame member 16 has a substantially U-shaped cross-sectional shape, the center in the width direction is a flat surface, and rectangular cylindrical projecting portions 16a and 16a projecting at right angles to both ends thereof extend along the longitudinal direction. Is provided. The protrusion 16a has an outer surface protruding longer than an inner surface parallel to the protrusion 16a, and a tip corner 16b is formed at an acute angle. Accordingly, the reinforcing vertical frame member 16 is formed with a recessed portion 16c that is shallowly recessed leaving a slightly protruding portion 16a on both sides in the width direction. In addition, a linear gap is formed along the longitudinal direction between the outer and inner parallel surfaces on the front end surfaces of the projecting portions 16a and 16a at both ends in the width direction of the vertical frame member 16. A long spacer 17 made of resin or rubber is mounted in the gap in the length direction.

  The reinforcing vertical frame member 16 is disposed so that the shallow concave portion 16c faces the direction of the vertical connecting frame member 5, and the vertical frame members 16 and 16 are vertically disposed in the concave portions 16c and 16c. Each outer peripheral surface of the connecting frame member 5 is partially received. Further, in the first door 3 and the second door 4, both the vertical frame members 16, 16 are attached to the end surfaces of the side portions of the door panels 11, 12, and are fastened by several screws (not shown) to be integrated. It has become.

  The long vertical connecting frame member 5 is configured by integrally arranging two C-shaped members 5a and 5a so that the circular arc wall portions 5b and 5b face outside, and is a hollow frame having a glasses-shaped cross section. is there. The vertical connecting frame member 5 has shaft holes 5c and 5c formed at the centers of the arc wall portions 5b and 5b. The shaft holes 5c and 5c are respectively arc wall portions by three ribs 5d, 5d and 5d. 5b is connected. The vertical connection frame member 5 is an extruded product of aluminum or an alloy thereof.

  Next, a procedure for assembling the hinge means 6 and attaching the first door 3 and the second door 4 to the vertical connecting frame member 5 in a rotatable manner will be described.

  In the arm members 22 and 22, bushings 24 and 24 are fitted into the holes 22a and 22a of the ring portions 22b and 22b, and the gear cover holding member 30 is placed on the ring portions 22b and 22b. The gear cover holding member 30 is formed in a glass shape with roller insertion holes 30a and 30a provided at the bottom. A roller 31 made of a thin resin cylindrical material is loosely fitted in the roller insertion hole 30a. The roller 31 is provided with a pair of holes 31b at positions that coincide with the pair of gear mounting holes 22f provided in the annular portion 22b when arranged coaxially with the annular portion 22b of the arm member 22.

  Each of the pair of gears 21 and 21 has a cylindrical protrusion 21a at the center, a hole 21b is provided at the center, and mounting holes 21c are provided on both sides adjacent to the hole 21b. ing. The pair of gears 21, 21 are engaged with each other and placed on the rollers 31, 31, and each protrusion 21 a is loosely fitted in the shaft hole 31 a of the roller 31. Thereafter, the pair of gears 21, 21 is inserted with a screw 23 in each hole 21 c, inserted into the hole 31 b of the roller 31, and screwed into the gear mounting hole 22 f of the annular portion 22 b of the arm member 22. Thus, when the pair of gears 21 and 21 are fixed together with the roller 31 to the annular portion 22b of the arm member 22, the bush 24 is loosely fitted into the hole 22a of the annular portion 22b and loosely inserted into the shaft hole 31a of the roller 31. While being in contact with the protruding portion 21a of the fitted gear 21, it is in a state of protruding a predetermined amount from the hole 22a of the annular portion 22b of the arm member 22.

  Then, the pair of shaft attachment holes 25 a, 25 a of the connecting plate 25, the center holes 21 b, 21 b of the pair of gears 21, and the center holes 24 a, 24 a of the bush 24 are matched, and the pair of shaft members 26 are paired with the pair of connecting plates 25. A box-shaped gear cover 27 is inserted through the shaft mounting hole 25a in series and coaxially arranged, has an eyeglass-shaped appearance, has a lower surface opened, and a transverse section substantially equal to the transverse section of the longitudinal connecting frame member 5. Keep it attached. The shaft member 26 is a shaft portion 26a whose peripheral surface is mirror-finished from the head portion to the middle, and a screw 26b for forming a female screw is cut from the tip portion by a specific length. It is.

  The gear cover 27 is provided with a slit 27a having a circular arc shape at the edge of the bottom surface, and provided in the connection plate 25 near the center of the bottom surface when the connection plate 25 is stored. Holes 27b and 27b are formed at positions corresponding to the shaft mounting holes 25a and 25a formed, and holes 27c and 27c are formed at positions corresponding to the screw fixing holes 25b and 25b provided on the connecting plate 25. ing. Accordingly, the gear cover 27 is attached to the gear 21 or the like, the screw 28 is passed through the hole 27c through the hole 25b, and the connecting plate 25 is fastened, and the gear cover 27 is joined to the gear cover holding member 30 so as to be hinged 6. Is completed.

  As a result, the gear cover holding member 30 is fixed by causing the roller 31 to protrude from the roller insertion hole 30a by a predetermined amount, and the gear cover holding member 30 is not in contact with the arm member 22 with a gap. The material 22 is made rotatable.

  The hinge means 6 is disposed so that the bushes 24 are in contact with the upper and lower end surfaces 5 e of the vertical connecting frame member 5. The vertical connecting frame member 5 is made of aluminum or an alloy thereof, and is provided with a plurality of protrusions 5f protruding linearly at equal angles in the axial direction on the inner surface of the shaft hole 5c. The shaft member 26 is inserted into the shaft hole 5c of the vertical connecting frame member 5, and is fastened while forming a female screw on the protrusion 5f. As a result, the opening end face of the gear cover 27 is joined with the gear cover holding member 30 having substantially the same opening end face, and the hinge means 6 is attached to the longitudinal connecting frame member 5.

  The first door 3 and the second door 4 are provided with the vertical connecting frame member 5 interposed between the mounting pieces 22e, 22e of the arm members 22, 22 of the hinge means 6, 6 attached to the vertical connecting frame member 5. The vertical frame members 16 and 16 are arranged so as to be close to each other. And the 1st door 3 and the 2nd door 4 contact | abut the outer surface of the stopper part 22d of the arm material 22 to the plane of the recessed part 16d center of both the vertical frame materials 16 and 16, and the mounting piece 22e of the arm material 22 Are arranged on the upper and lower end faces of the door panels 11 and 12, and in this state, screws 18 are inserted into a plurality of mounting holes 22 g provided in the mounting piece 22 e and fastened, and the vertical connecting frame member is interposed via the arm member 22. 5 is attached.

Next, the operation of the hinge means 6 will be described with reference to FIG.
The hinge means 6 rotatably connects the vertical connecting frame member 5 and the first door 3, and connects the vertical connecting frame member 5 and the second door 4 so as to be rotatable. The hinge means 6 supports the first door 3 so as to be rotatable about one shaft hole 5c of the vertical connection frame member 5, and vertically supports the other shaft hole 5c of the vertical connection frame member 5. The connecting frame member 5 and the second door 4 are rotatably supported.

  Since the first door 3 and the second door 4 are rotatable around the shaft members 26 and 26 of the gears 21 and 21 at the upper and lower ends of the vertical connecting frame member 5, each vertical frame member 16 is C-shaped. It rotates along the outer peripheral surface of the member 5a. In this case, it is configured to be rotatable with a gap G of a predetermined interval between the outer peripheral surface of the vertical connecting frame member 5 and the protrusions 16a at both ends in the width direction of each vertical frame member 16. By attaching the spacers 17 to the projecting portions 16 a of the frame member 16, the vertical frame members 16 that rotate about the shafts of the gears 21 and 21 contact the outer peripheral surface of the vertical connection frame member 5 with the spacers 17. The gap G is closed by the spacer 17 in contact.

  Accordingly, the first door 3 and the second door 4 are warped due to changes in moisture and temperature, and the gap G between each protrusion 16c of each vertical frame member 16 and the outer peripheral surface of the vertical connection frame member 5 is narrowed, and the spacer 17 If the friction between the frame and the outer peripheral surface of the vertical connecting frame member 5 increases and the door cannot be folded smoothly, the spacer 17 is replaced with another spacer having a small thickness so that the door can be folded smoothly. can do. Further, when the warp of the first door 3 or the second door 4 is recovered and a gap G is generated between the other spacer and the outer peripheral surface of the vertical connecting frame member 5, the spacer 17 is replaced with the original thick spacer 17. Thus, the first door 3 and the second door 4 can be turned back to the initial state.

  In the rotary folding door of the present invention, the doors 3 and 4 are rotated around the shafts of a pair of gears 21 and 21 arranged so that the hinge means 6 and 6 attached to the vertical connecting frame member 5 are engaged with each other. When the door is folded, the vertical connecting frame member can be folded by opening and closing it while projecting to the near side or the opposite side, and the two separated axes of the vertical connecting frame member 5 serve as pivotal fulcrums. Even if it is used for a long period of time, it will be misaligned in the hinge part without a person's hand or toe being caught in the gap between the doors 3 and 4 and the vertical connecting frame member 5 as a structure is a hollow pipe shape. When the door is folded, it can be folded smoothly, and a situation where the sound becomes loud is prevented.

  8 is an exploded perspective view of a connecting portion in Embodiment 2 of the present invention, FIG. 9 is an exploded front view of a part of the hinge means of FIG. 8, FIG. 10 is a longitudinal sectional view of the hinge means of FIG. FIG. 11 is a cross-sectional view of the main part of the hinge means.

  In the second embodiment, instead of the arm member 22 in the first embodiment, an arm member 42 formed of a metal plate having a different shape is used. A vertical frame member 44 is used instead of the vertical frame member 16. Further, the vertical connection frame member 45 having a different internal structure from the vertical connection frame member 5 in the first embodiment is used.

  8-10, the basic structure of the rotary folding door 1 of Example 2 is the 1st door 3, the 2nd door 4, and the vertical connection frame member 5 of the vertical direction in alignment with the vertical fence of each door. Composed of a combination. The following description is different from the description of the arm material 42, the vertical frame material 44, the vertical connection frame member 45, the description of the attachment procedure of the arm material 42 to the first door 3 and the second door 4, and the first embodiment. The procedure for assembling the hinge means 6a will be described, and the description overlapping with that of the first embodiment will be omitted. The hinge means 6a includes the gear cover 27, the shaft member 26, the connecting plate 25, the bearing member 34, the gear 21, the arm material 22, and the like.

  The arm member 42 has an annular portion 42b having a central hole 42a at one end. An annular portion 42b is a gear mounting portion, a tongue piece 42c extends on the same surface from the annular portion 42b, the tongue piece 42c is bent at a right angle from the middle, and the other end side is a mounting piece 42e. The mounting piece 42e is formed at right angles to the annular portion 42b.

  The reinforcing vertical frame member 44 has a substantially U-shaped cross-sectional shape, the center in the width direction is a flat surface, and rectangular cylindrical projecting portions 44a and 44a projecting at right angles to both ends thereof are along the longitudinal direction. Is provided. The protruding portion 44a has an outer surface protruding longer than an inner surface parallel to the protruding portion 44a, and a tip corner portion 44b is formed at an acute angle. Accordingly, the reinforcing vertical frame member 44 is formed with a recessed portion 44c that is shallowly depressed with a slight width left and right on both sides. The bottom part of the recessed part 44c is a cylinder shape along a longitudinal direction, Comprising: The cross section becomes the rectangular frame 44d. And the recessed part 44c is provided with the rectangular notch part 44e in the edge part of the longitudinal direction of a bottom face.

  The long vertical connecting frame member 45 is formed by integrally arranging two C-shaped members 45a and 45a facing each other with the arc wall portions 45b and 45b facing outside, and is a hollow frame having a glasses-shaped cross section. is there. The vertical connecting frame member 45 has shaft holes 45c and 45c formed at the centers of the arc wall portions 45b and 45b, and each shaft hole 45c and 45c is formed by an arc wall by four ribs 45d, 45d,. It is connected to the parts 45b and 45b. The vertical connection frame member 45 is an extruded product of aluminum or an alloy thereof. A straight gap is formed along the longitudinal direction between the parallel surfaces of the outer and inner sides of the front end surfaces of the projecting portions 44a and 44a at both ends in the width direction of the vertical frame member 44. A long spacer 17 made of resin or rubber is mounted along the length direction. When the vertical frame members 44 and 44 are arranged in parallel so that the concave portion 44c faces the vertical coupling frame member 45, the outer surfaces of the vertical coupling frame member 45 are partially received by the concave portions 44c and 44c, respectively. It has become so.

  Next, the procedure for assembling the hinge means 6a will be described. First, the arm member 42 is attached to the first door 3 and the second door 4 before assembling the hinge means 6a.

  Both vertical frame members 44, 44 are inserted into a rectangular frame 44d from rectangular cutouts 44e formed at the upper and lower ends thereof, and a mounting piece 42e of the arm member 42 is inserted into the door panels 11, 12 together with the arm member 42. The first door 3 and the second door 4 are assembled by being fastened by screws 48. The assembled first door 3 and second door 4 are parallel to each other, with the annular portions 42b, 42b of the arm members 42, 42 extending laterally at the upper and lower ends on the left and right opposing side surfaces. It is in a state of being opposed to each other.

  Next, in the first door 3 and the second door 4, a metal or resin bearing member 34 is disposed between the annular portion 42 b and the end face 45 e in the axial direction of the vertical connecting frame member 45.

  A pair of gears 21 is connected to a flat connecting plate 25 in which a pair of shaft holes 25a and 25a are provided at the center interval of both gears at the upper end or the lower end of the first door 3 and the second door 4. , 21, the holes of the connecting plate 25, the gear 21, the bearing member 34, and the vertical connecting frame member 45 are arranged so as to coincide with each other, inserted in series by bolts 26 and fixed, A box-shaped gear cover 27 whose outer appearance is glasses-shaped and whose lower surface is open is attached.

  In the above description, the means for rotatably mounting the first door 3 and the second door 4 at the upper end of the vertical connecting frame member 5 has been described. However, at the lower end of the vertical connecting frame member 5, a bearing member is provided. 34, the arm member 42, the gear 21, the connecting plate 25, and the gear cover 27 are attached by the procedure upside down.

  Further, the bearing 24, the arm member 22, the gear 21, the connecting plate 25, and the gear cover 27 are arranged at the end of the vertical connecting frame member 45, and the bolts 26 are inserted through the hole 27b of the gear cover 27 in series into the shaft hole 5b. The screw 28 may be fixed from the hole 27c to the hole 25b.

  Since the operation of the hinge means 6a is the same as the operation of the hinge means 6 of the first embodiment, the description thereof is omitted.

  In the case of the folding folding door of the present invention, when the door cannot be folded smoothly due to changes in humidity or temperature, the door can be folded smoothly by replacing the spacer 17 with another spacer having a different thickness. Can do. In addition, the doors 3 and 4 are pipes in which the vertical connection frame member 5 is hollow as a structure without a person's hands or toes being caught in the gap between the doors 3 and 4 when the doors are folded. Therefore, even if it is used for a long period of time, the hinge portion will not be displaced, and when the door is folded, it can be folded smoothly, preventing a situation where the sound is loud.

It is a front view of the whole door installation provided with the rotation folding door. It is action | operation explanatory drawing of the rotation folding door in FIG. It is the sectional view on the AA line of FIG. FIG. 3 is an exploded perspective view of a connecting portion in the first embodiment . FIG. 2 is an exploded front view, partly missing, of the hinge means of FIG. 1. It is a longitudinal cross-sectional view of the hinge means of FIG. It is a schematic explanatory drawing for demonstrating the effect | action of the hinge means of FIG. 6 is an exploded perspective view of a connecting portion in Embodiment 2. FIG. FIG. 10 is an exploded front view of a part of the hinge means according to the second embodiment. It is a longitudinal cross-sectional view of the hinge means in Example 2. It is a cross-sectional view of the principal part of a hinge means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Revolving folding door 2 Door frame 3 1st door 4 2nd door 5,45 Vertical connection frame member 5a, 45a C-shaped member 5b, 45b Arc wall part 5c, 31a, 45c Shaft hole 5d, 45d Rib 5e, 45e End surface 5f Projection 6, 6a Hinge means 7 Suspension wheel 7a Suspension shaft 7b Base plate 7c Wheel 8 Vertical frame material 8a Bending piece 8b Column member 8c Recessed part 8d Projection piece 9 Upper frame body 10 Suspension rail member 10a Rail 10b Opening 11 , 12 Door panel 13, 14 Cover member 14 a, 14 c Hinge 14 b Bracket 14 d Rotating shaft 15 Air damper 15 a Piston rod 16, 44 Vertical frame member 16 a, 44 a Protruding part 16 b, 44 b Tip corner part 16 c, 44 c Recessed part 17 Spacer 21 Gear 21 a Cylindrical protrusion 21b Gear hole 21c Mounting hole 22, 42 Arm material 22a, 4 a Arm hole 22b, 42b Ring portion 22c, 42c Tongue piece 22d Stopper portion 22e, 42e Mounting piece 22f Gear mounting hole 22g Mounting hole 23, 48 Screw 24 Bush 24a Center hole 25 Connecting plate 25a Shaft mounting hole 25b, 27b , 27c, 31b hole 26 shaft member 26a shaft portion 26b female thread forming screw 27 gear cover 27a slit 28 screw 30 gear cover holding member 30a roller insertion hole 31 roller 34 bearing member 44d rectangular frame 44e notch 45e end face

Claims (4)

The first door and the second door are adjacent to each other along a vertical plane, and the first door and the second door protrude outward at both ends of each plane adjacent to each vertical frame member, and each has a U-shaped cross section. The upper and lower ends of the vertical frame members are connected to hinge means provided at the upper and lower ends of the vertical connection frame members arranged in parallel with the longitudinal direction of the vertical frame members, and the vertical connection is performed. A rotary folding door configured to be foldable across a frame member,
The hinge means includes a pair of gears that mesh with each other and a pair of arm members that rotate coaxially with the gears,
The first door and the second door are fixed to the arm members at the upper and lower ends, and a predetermined distance between the outer peripheral surface of the vertical connecting frame member and the protruding portions at both ends in the width direction of the vertical frame members. And a spacer for closing the gap is attached to each projecting portion of each vertical frame member along the length direction, and each spacer is a shaft of each gear. Is configured to rotate along the outer peripheral surface of the vertical connecting frame member around the center ,
The arm material is formed of a metal plate, and an annular portion is formed at one end, a tongue piece extends from the annular portion, and is bent at a right angle from the middle to form a vertical stopper portion, extending from the stopper portion. The rotary folding door is characterized in that the tongue piece is folded at a right angle in front of a predetermined length on the other end to form a mounting piece attached to the upper or lower end face of each door .   The vertical connecting frame member has two C-shaped members having a central axis and a C-shaped cross section, which are opposed to each other so that an arc portion is on the outer side, and has a glasses-shaped cross section, and the C-shaped member The rotary folding door according to claim 1, wherein the gear and the arm member are coaxially mounted on a central axis of the rotary door.   The rotary folding door according to any one of claims 1 and 2, wherein a gear cover having a transverse section substantially equal to a transverse section of the longitudinal connecting frame member is attached to the pair of gears. The first door and the second door are adjacent to each other along a vertical plane, and the first door and the second door protrude outward at both ends of each plane adjacent to each vertical frame member, and each has a U-shaped cross section. The upper and lower ends of the vertical frame members are connected to hinge means provided at the upper and lower ends of the vertical connection frame members arranged in parallel with the longitudinal direction of the vertical frame members, and the vertical connection is performed. A rotary folding door configured to be foldable across a frame member,
The hinge means includes a pair of gears that mesh with each other and a pair of arm members that rotate coaxially with the gears,
The first door and the second door are fixed to the arm members at the upper and lower ends, and a predetermined distance between the outer peripheral surface of the vertical connecting frame member and the protruding portions at both ends in the width direction of the vertical frame members. And a spacer for closing the gap is attached to each projecting portion of each vertical frame member along the length direction, and each spacer is a shaft of each gear. Is configured to rotate along the outer peripheral surface of the vertical connecting frame member around the center,
The arm material is formed of a metal plate, an annular portion is formed at one end, a tongue piece extends from the annular portion, and is bent at a right angle from the middle between the protruding portions in the width direction of the vertical frame member. A rotary folding door characterized in that a mounting piece attached to a flat surface is formed .

Images