JP6108312B2 - Rotating folding door - Google Patents

Description

  According to the present invention, the first door and the second door are arranged adjacent to each other in a vertical plane including the door frame when closed, and are connected to the vertical connection frame member by the hinge means so as to be foldable. It is about.

2. Description of the Related Art Conventionally, a rotary folding door has a configuration that can be folded in both directions on the front and back of a door surface.
For example, a rotary folding door as shown in Patent Document 1 connects a first door and a second door by hinge means, and the hinge means includes a pair of gears that mesh with each other and a pair that rotates coaxially with the gears. The first door and the second door are fixed to each arm material at the upper and lower ends, and the outer peripheral surface of the vertical connection frame member and the protruding portions at both ends in the width direction of each vertical frame material, The spacer is configured to be rotatable with a gap of a predetermined interval therebetween, and a spacer for closing the gap is attached to each protrusion of each vertical frame member along the length direction, and each spacer is It is comprised so that it may rotate along the outer peripheral surface of the said vertical connection frame member centering on the axis | shaft of each said gearwheel. (Patent Document 1).

Japanese Patent No. 4412677

  However, in the case of the conventional patent document 1, since there is play between the hinge internal cam and the shaft, there is a case where the first door and the second door cannot be stably returned to a predetermined position when the first door and the second door are closed. Further, when a roller lock or the like is used to maintain the closed state of the door, there is a drawback that it does not close firmly until the closed state. Further, when a lever handle is used for the door, it is inconvenient to open the door in both directions and is not suitable for use by a wheelchair user or an elderly person.

  The present invention has been made in order to eliminate the above-described inconveniences, and the hinge means provided at the upper and lower ends of the vertical connecting frame member that connects the first door and the second door are a pair of meshing with each other. It has a gear and a pair of arm members that rotate coaxially and integrally with the gear, and this hinge means is provided with an interlocking latch mechanism so that the first door and the second door are 180 degrees and parallel. Since it is configured to be engaged and held in some cases, it can be securely fixed in the closed position and can be fixed even when fully opened, and a rotary folding door suitable for use by wheelchair users and elderly people is provided. Is.

The present invention has the following contents.
(1) In order to achieve the above object, according to the present invention, the first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when closed, and the first door and the second door are both A rotary folding door configured to be foldable by hinge means provided at the upper and lower ends of the vertical connection frame member for connecting the hinges, wherein the hinge means includes a pair of gears meshing with each other and a single coaxial rotation together with the gears. The first door and the second door are fixed to the arm members at the upper and lower ends and rotate with a predetermined distance from the outer peripheral surface of the vertical connecting frame member. with rotatably configured, the hinge means is juxtaposed latch mechanism interlocked is configured to be engaged with and held when said first door and the second door is turned 180 degrees and the parallel state In addition, the latch mechanism is the same as the gear of the hinge means. A pair of latch shafts that rotate integrally with each other, a pair of latch disks that rotate together with the latch shaft, and a latch housing that has an engaging portion that engages with a latch claw that is disposed so as to protrude and retract from the latch disk. It is provided with.
(2) The latch mechanism includes an engaging portion at a position where the latch claws arranged on the respective latch disks face each other and at a position rotated 90 degrees clockwise or counterclockwise from the facing position. It is characterized by that.
(3) The engagement portion is provided in the latch housing.
(4) The first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when closed, and the first door and the second door are upper and lower ends of a vertical connection frame member that connects the two. The hinge means comprises a pair of gears meshing with each other and a pair of arm members that rotate coaxially together with the gears. The first door and the second door are fixed to the arm members at upper and lower ends and are configured to be rotatable with a predetermined distance from the outer peripheral surface of the vertical connecting frame member, and the hinge means Is coupled with an interlocking latch mechanism, and is configured to be engaged and held when the first door and the second door are in a parallel state of 180 degrees and the latch mechanism, A pair of latch shafts that rotate coaxially and integrally with the gear; A pair of latch disks that rotate together with the latch shaft, a magnet disposed at a predetermined position of the latch disk, and a magnet having a reverse polarity that holds the latch disk by being attracted to the magnet disposed on the latch disk. A latch housing is provided.
(5) The second door is rotatably supported by the door frame and is provided with a door closer.

According to the present invention, the first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when closed, and the first door and the second door are connected to each other by the vertical connection frame member that connects the two. A rotary folding door configured to be foldable by hinge means provided at upper and lower ends, wherein the hinge means includes a pair of gears meshing with each other and a pair of arm members that rotate coaxially together with the gears. The first door and the second door are fixed to the arm members at the upper and lower ends, and are configured to be rotatable with a predetermined distance from the outer peripheral surface of the vertical connection frame member. The hinge means is provided with an interlocking latch mechanism, and is engaged and held when the first door and the second door are in 180 degrees and in a parallel state. Therefore, the hinge means is surely decelerated when closing the folding door. It can be fixed in the closed position and can be fixed even when fully open. That is, the first door and the second door can be returned to and held at predetermined positions with high accuracy by the latch mechanism interlocked with the hinge means.
The latch mechanism is provided with a pair of latch shafts that rotate coaxially and integrally with the gear of the hinge means, a pair of latch disks that rotate together with the latch shaft, and a retreatable projection from the latch disk. Since the latch housing having the engaging portion with which the latch claw is engaged is provided, the latch mechanism can be incorporated in the vertical connecting frame member that connects the first door and the second door.
In addition, the latch mechanism includes an engaging portion at a position where the latch claws disposed on the respective latch disks are opposed to each other and at a position rotated 90 degrees clockwise or counterclockwise from the opposed position. The first door and the second door can be held and fixed in a closed state and a fully opened state, respectively. Moreover, even if the door is opened in any direction, it can be held and fixed in the fully opened state.
Further, since the engaging portion is provided in the latch housing, the latch mechanism can be configured in a compact manner.
The latch mechanism includes a pair of latch shafts that rotate coaxially together with the gear of the hinge means, a pair of latch disks that rotate together with the latch shaft, and a magnet disposed at a predetermined position of the latch disk. Since it has a latch housing with a magnet of reverse polarity that attracts and holds the latch disk, the folding door can be securely held and fixed in the closed state and held in the fully open state. Can be fixed.
The second door is pivotally supported by the door frame and can be made a self-closing folding door by a door closer, and the closing speed of the second door can be adjusted. Therefore, the second door can be reliably decelerated when closing the folding door. It can be fixed in the closed position and also when fully open.

FIG. 1 is a front view of a rotary folding door showing an embodiment of the present invention. FIG. 2 is an explanatory view showing a hinge portion of the rotary folding door. FIG. 3 is an explanatory view showing a hinge portion of the rotary folding door. FIG. 4 is an explanatory view showing a suspension car of the same rotating folding door. FIG. 5 is a longitudinal sectional view showing a suspension wheel of the same rotating folding door. FIG. 6 is a plan view showing hinge means used for the rotary folding door. FIG. 7 is a longitudinal sectional view of a main part showing the hinge means. FIG. 8 is a cross-sectional perspective view showing the hinge means. FIG. 9 is a perspective view from the bottom showing the hinge means. FIG. 10 is an exploded perspective view showing the hinge means. FIG. 11 is an overall perspective view showing the hinge means. FIG. 12 is an exploded cross-sectional view of the main part showing the hinge means. FIG. 13 is a plan view showing a closed state of the rotary folding door. FIG. 14 is a plan view showing the middle of opening of the rotary folding door. FIG. 15 is a plan view showing an opened state of the rotary folding door. FIG. 16 is a plan view showing a closed state of the rotary folding door. FIG. 17: is a top view which shows the middle of opening to the reverse direction of the same rotation folding door. FIG. 18 is a plan view showing an opened state of the rotary folding door in the reverse direction. FIG. 19 is an explanatory view showing a latch mechanism used in the rotary folding door. FIG. 20 is an explanatory view showing a state where the latch mechanism is opened 15 degrees. FIG. 21 is an explanatory view showing a state where the latch mechanism is opened 90 degrees. FIG. 22 is an operation explanatory diagram of a latch mechanism according to another embodiment. FIG. 23 is an operation explanatory diagram of a latch mechanism according to another embodiment. FIG. 24 is an operation explanatory diagram of a latch mechanism according to another embodiment.

  In the rotary folding door according to the present invention, the first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when closed, and the first door and the second door are connected to each other vertically. The hinge means is configured to be foldable by hinge means provided at the upper and lower ends of the member, and the hinge means has a pair of gears that mesh with each other and a pair of arm members that rotate coaxially together with the gears. The first door and the second door are fixed to the arm members at the upper and lower ends, and are configured to be rotatable with a predetermined distance from the outer peripheral surface of the vertical connection frame member. The hinge means is provided with an interlocking latch mechanism, and is engaged and held when the first door and the second door are in 180 degrees and in a parallel state. Therefore, the hinge means is surely decelerated when closing the folding door. It can be fixed in the closed position and can be fixed even when fully open.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment. FIG. 1 is a front view of a rotary folding door showing an embodiment of the present invention, FIG. 2 is an explanatory view showing a hinge part of the rotary folding door of the present invention, and FIG. 3 is an explanation showing a hinge part of the rotary folding door of the present invention. FIGS. 4 and 4 are explanatory views showing a rotary folding door suspension of the present invention, and FIG. 5 is a longitudinal sectional view showing the rotary folding door suspension of the present invention. Here, the rotary folding door 10 is disposed adjacent to a vertical plane including the door frame 13 when the first door 11 and the second door 12 are closed, and the first door 11 and the second door 12 are connected to each other. The hinge means 15 is configured to be foldable by hinge means 15 provided at the upper and lower ends of the vertical connecting frame member 14, and the hinge means 15 is coaxially and integrally rotated together with the gear 16 and the gear 16. The first door 11 and the second door 12 are fixed to the arm members 17 at the upper and lower ends and have a predetermined distance from the outer peripheral surface 14a of the vertical connecting frame member 14. The hinge means 15 is provided with an interlocking latch mechanism 18 so as to engage and hold the first door 11 and the second door 12 when they are 180 degrees and parallel. Can do.

 Further, the rotary folding door 10 is operated by pushing or pulling the vertical connecting frame member 14 interposed between the first door 11 and the second door 12 or by rotating the free end of the first door 11. Since it is pivotally supported by the hinge means 15, it rotates in the overlapping direction, and the suspension wheel 21 provided at the upper end of the first door 11 travels along the suspension rail member 22 provided on the upper frame body 20 of the door frame 13. However, the door frame 13 is opened by folding the first door 11 toward the second door 12 while being folded so as to overlap each other. Further, the door frame 13 has a gate shape including left and right vertical frame members 19 and 19 and an upper frame body 20 having both ends fixed to and integrated with upper ends of the left and right vertical frame members 19 and 19.

  As shown in FIGS. 2 and 3, the second door 12 is pivotally supported by the upper frame body 20 so that the upper end portion is pivotable, and the lower end portion is rotated around the vertical frame member 19 via the L-shaped metal fitting 26. It is pivotally supported. Further, the second door 12 is provided with a door closer 27, which can be a self-closing folding door and can adjust the closing speed of the second door 12.

  As shown in FIGS. 4 and 5, the first door 11 is movably suspended from the upper frame body 20 of the door frame 13 by a suspension wheel 21 that travels in a suspension rail member 22 provided in the upper frame body 20. Yes. Furthermore, fixed magnets 24 and 25 may be provided at the positions of the front end portion of the first door 11 and the corresponding vertical frame member 19. Further, as shown in FIG. 1, a handle 36 and a thumb turn lock 37 for opening and closing operations are attached to the first door 11.

The suspension vehicle 21 is configured such that four wheels 21 a that are rotatably attached can travel on the suspension rail member 22. The travel range is from the position when the rotary folding door 10 is in the closed state to the position near the right end of the upper frame 20 when it is fully opened.
By comprising in this way, even if the rotation folding door 10 closes with a strong wind or strong force, it can be closed slowly slowly. Further, the door can be returned to the center of the door frame 13 when the rotary folding door 10 is closed by the fixed magnets 24 and 25.

  6 is a plan view showing hinge means used for the rotary folding door, FIG. 7 is a longitudinal sectional view of the main part showing the hinge means, FIG. 8 is a sectional perspective view showing the hinge means, and FIG. 9 is a bottom view showing the hinge means. FIG. 10 is an exploded perspective view showing the hinge means. Here, the hinge means 15 has a pair of gears 16 and 16 meshing with each other, and a pair of arm members 17 and 17 having an annular portion 17a fixed to the gear 16 and coaxially rotating together with the gear. Thus, the gear 16 is rotatably housed in a dumbbell-shaped housing 28 in plan view. The other end 17b of the arm member 17 has a screw hole 17c that is extended and fixed to the door body.

  The latch mechanism 18 includes a pair of latch shafts 29 that rotate coaxially and integrally with the gear 16 of the hinge means 15, a pair of latch disks 30 that rotate together with the latch shaft 29, and can project and retract from the latch disk 30. A latch housing 33 having an engaging portion 32 with which the latch claw 31 is disposed is provided. As shown in FIGS. 10 and 12, the latch shaft 29 has a disk-shaped head portion 29a having a hexagonal hole in the center, a hexagonal shaft portion 29b having a hexagonal cross section on the shaft portion suspended from the head portion 29a, and a shaft portion subsequent thereto. A square shaft portion 29c having a square cross section is provided, and a screw portion 29d having a screw is formed below the square shaft portion 29c. The hexagonal shaft portion 29 b of the latch shaft 29 is fitted into a hexagonal hole formed at the center of the gear 16, and the square shaft portion 29 c is fitted into a square hole formed at the center of the latch disk 30.

  Further, the latch mechanism 18 includes engaging portions 32 at positions where the latch claws 31 disposed on the respective latch disks 30 face each other and at positions rotated 90 degrees clockwise or counterclockwise from the facing positions. ing. Specifically, as shown in FIG. 19 and the like, a central wall portion that separates the space 34 in which the latch disk 30 of the dumbbell-shaped latch housing 33 that overlaps the circle in plan view rotates, and clockwise from the central wall portion. The engaging portion 32 is disposed at a position rotated 90 degrees in the counterclockwise direction. In addition, inclined portions 32a are provided on both sides of the engaging portion 32, and the engaging portions 32 are disposed on top of the inclined portion 32a. Further, the latch pawl 31 has a sharp tip, and is biased by a spring 35 in a direction protruding from a storage hole formed in a part of the latch disk 30.

  The latch housing 33 has a hole 38 through which the latch shaft 29 passes in the center of the upper surface, and the latch disk 30 is fitted to the latch shaft 29 via a washer 39, and is latched via a washer and a connecting fitting 45 from below. The latch shaft 29 and the latch disk 30 are rotatably accommodated by a screw 46 screwed to the shaft 29. Further, the outer peripheral shape of the latch housing 33 has a dumbbell shape, and can be inserted into the outer cylinder 47 of the vertical connection frame member 14 (see FIGS. 10 and 11).

  As another embodiment, as shown in FIGS. 22 to 21, the latch mechanism 40 includes a pair of latch shafts 29 that rotate coaxially together with the gear 16 of the hinge means 15, and a pair that rotates together with the latch shaft 29. Latch disk 41, magnets 42 a, 42 b, 42 c disposed at predetermined positions of latch disk 41, and magnets 42 a, 42 b, 42 c disposed on latch disk 41, and reverse polarity that holds latch disk 41 A latch housing 44 including the magnet 43 may be provided. Further, the magnets provided on the latch disk 41 are arranged at an angle of 90 degrees with respect to the central angle of the disk. Since the magnets 43 provided in the latch housing 44 have opposite polarities on the left and right, the left latch disk 41 'is provided with magnets 42a', 42b ', 42c' having opposite polarities. In addition, a powerful neodymium magnet etc. can be used for a magnet.

  Next, a procedure for assembling the hinge means 15 and the latch mechanism 18 and attaching the first door 11 and the second door 12 to the vertical connecting frame member 14 in a rotatable manner will be described.

  The arm members 17, 17 have the ring portion 17 a fixed to the gear 16 with screws or the like, and the gear 16 portion is housed in the housing 28 via the connecting fitting 28 a. Each of the pair of gears 16 and 16 has a cylindrical projecting portion 16a at the center and a hexagonal hole at the center. The pair of gears 16, 16 rotate integrally with the latch shaft 29 and the arm member 17 by inserting the hexagonal shaft portion 29 b of the latch shaft 29 into each hole.

  Further, a latch mechanism 18 is attached below the hinge means 15. The latch mechanism 18 has a pair of latch shafts 29 that rotate coaxially and integrally with the gear 16 of the hinge means 15, a pair of latch disks 30 that rotate together with the latch shaft 29, and a projecting and retractable arrangement from the latch disk 30. The latch housing 33 has an engaging portion 32 with which the latch claw 31 is engaged. First, the latch housing 33 is disposed under the annular portion 17a, and the latch shaft 29 is inserted through the hole 38. A latch disk 30 is fitted to the square shaft portion 29 c of the latch shaft 29 via a washer 39. Therefore, the latch disk 30 rotates integrally with the latch shaft 29 and the gear 16. In addition, the latch disk 30 is fixed to the latch shaft 29 by a screw 46 that is screwed onto the latch shaft 29 from below through a washer and a connecting fitting 45. In this way, the assembly of the latch mechanism 18 is completed.

  The hinge means 15 and the latch mechanism 18 are disposed above and below the outer cylinder 47 of the vertical connection frame member 14 having a bell shape. The first door 11 and the second door 12 are fixed to the arm members 17 and 17 of the hinge means 15 and 15 attached to the vertical connection frame member 14 with screws or the like at the upper and lower ends.

  Next, the opening / closing operation of the rotary folding door 10 will be described with reference to FIGS. 13 to 15 and FIGS. 19 to 21. First, when the first door 11 and the second door 12 are closed, they are arranged at a position of 180 degrees in the door frame 13. The latch claws 31 of the latch mechanism 18 are opposed to each other and are engaged with the central engaging portion 32. When the handle 36 or the first door 11 is pushed, the first door 11 and the second door 12 are bent by the hinge means 15 and the latch mechanism 18, and the latch claw 31 is released from the engaging portion 32. Further, the first door 11 is rotated and retracted by the suspension wheel 21 (see FIGS. 14 and 20).

  When the first door 11 and the second door 12 are further bent and opened until the first door 11 and the second door 12 are in a parallel state, the doors are fully opened as shown in FIGS. The claw 31 engages with the engaging portion 32 at a position of 90 degrees when closed. At this time, the latch claw 31 gradually climbs up and moves on the inclined portions on both sides of the engaging portion 32, so that the closing speed of the door is decelerated and can be closed quietly. In addition, finger padding can be prevented. Further, when the latch claw 31 and the engaging portion 32 are engaged, the fully opened state is held and fixed.

  FIGS. 16-18 shows the case where the 1st door 11 and the 2nd door 12 are opened in the reverse direction. When opened in this way, the latch claw 31 of the latch mechanism 18 engages with the engagement portion 32 at a position of 90 degrees in the direction opposite to the previous time of the latch housing 33 to hold and fix the fully opened state. .

22 to 24 are diagrams illustrating the operation of the latch mechanism 40. When the first door 11 and the second door 12 are closed, they are lined up at 180 degrees in the door frame 13. Further, the magnets 42 a of the latch mechanism 40 are opposed to each other and are engaged with a magnet 43 provided in the central latch housing 44. Therefore, it is held in a closed state.
When the first door 11 is pushed, the first door 11 and the second door 12 are bent by the hinge means 15 and the latch mechanism 40, and the magnet 42 a is released from the magnet 43.

  When the first door 11 and the second door 12 are further bent and opened until the first door 11 and the second door 12 are in a parallel state, the door is fully opened, and the magnet 42 b of the latch mechanism 40 is engaged with the magnet 43. The magnets 42a, 42b, 42c disposed on the latch disk 41 are at 90 degrees. Therefore, even when the first door 11 and the second door 12 are opened in the opposite directions, the fully opened state is held and fixed, respectively.

  As described above, the rotary folding door of the present invention can be reliably fixed in the closed position by the latch mechanism and can be fixed even when fully opened.

  Since the rotary folding door of the present invention can be used even in a wheelchair or an elderly person, it can be used in hospitals, nursing homes, nursing homes and the like.

DESCRIPTION OF SYMBOLS 10 Revolving folding door 11 1st door 12 2nd door 13 Door frame 14 Vertical connection frame member 14a Outer peripheral surface
DESCRIPTION OF SYMBOLS 15 Hinge means 16 Gear 17 Arm material 17a Ring part 17b Other end 17c Screw hole 18 Latch mechanism 19 Vertical frame material 20 Upper frame 21 Suspension wheel 22 Suspension rail member 24 Fixed magnet 25 Fixed magnet 26 L-shaped metal fitting 27 Door closer 28 Housing 28a Connecting bracket 29 Latch shaft 29a Head portion 29b Hexagon shaft portion 29c Square shaft portion 29d Screw portion 30 Latch disk 31 Latch claw 32 Engagement portion 33 Latch housing 34 Space 35 Spring 36 Handle 37 Thumb turn lock 38 Hole 39 Washer 40 Latch mechanism 41 Latch Disk 42a, b, c Magnet 43 Magnet 44 Latch housing 45 Connecting bracket 46 Screw 47 Outer cylinder

Claims (5)

The first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when the door is closed, and the first door and the second door are provided at upper and lower ends of a vertical connection frame member that connects the two. A rotary folding door configured to be foldable by a hinge means,
The hinge means includes a pair of gears meshing with each other and a pair of arm members that rotate coaxially and integrally with the gears. The first door and the second door are connected to the arm members at the upper and lower ends. It is fixed and configured to be rotatable with a predetermined distance from the outer peripheral surface of the vertical connecting frame member,
Said hinge means is juxtaposed latch mechanism interlocked, together with said first door and the second door are configured to be engaged with and held when it becomes 180 degrees and the parallel state,
The latch mechanism includes a pair of latch shafts that rotate together coaxially with the gear of the hinge means, a pair of latch disks that rotate together with the latch shaft, and a latch claw that is disposed so as to protrude and retract from the latch disk. And a latch housing having an engaging portion for engaging the rotary folding door. The latch mechanism includes engaging portions at positions where the latch claws disposed on the respective latch disks are opposed to each other and at positions rotated 90 degrees clockwise or counterclockwise from the opposed positions. The rotary folding door according to claim 1 . The engaging portion is rotated folding door according to claim 1 or 2, characterized in that provided in the latch housing. The first door and the second door are disposed adjacent to each other in a vertical plane including the door frame when the door is closed, and the first door and the second door are provided at upper and lower ends of a vertical connection frame member that connects the two. A rotary folding door configured to be foldable by a hinge means,
The hinge means includes a pair of gears meshing with each other and a pair of arm members that rotate coaxially and integrally with the gears. The first door and the second door are connected to the arm members at the upper and lower ends. It is fixed and configured to be rotatable with a predetermined distance from the outer peripheral surface of the vertical connecting frame member,
The hinge means is provided with an interlocking latch mechanism, and is configured to be engaged and held when the first door and the second door are in a parallel state of 180 degrees,
The latch mechanism includes a pair of latch shafts that rotate coaxially together with the gear of the hinge means, a pair of latch disks that rotate together with the latch shaft, and a magnet disposed at a predetermined position of the latch disk. A rotary folding door comprising a latch housing having magnets of opposite polarity that are attracted to and held by the magnets disposed on the latch disk. The rotary folding door according to any one of claims 1 to 4 , wherein the second door is rotatably supported by the door frame and is provided with a door closer.