JP6083791B2 - Orito - Google Patents

Description

  The present invention relates to a folding door in which a plurality of panels are rotatably connected.

  Folding doors are two or more panels that are pivotally connected and do not require a door pocket, and have a variety of advantages such as a narrower space required for opening and closing than a hinged door. Used in. When the folding door is composed of two panels, one panel is pivotably attached to the frame surrounding the door's outer edge, and the other panel is restricted from moving by a guide extending along the frame. Is done. Therefore, when opening and closing the door, when the two panels are viewed from above, they move while maintaining an isosceles triangle. When the door is fully opened, the two panels overlap and protrude perpendicularly from the frame.

  It is preferable that the door can maintain a closed state or an open state as necessary. For this reason, folding doors often have a function of restricting panel movement. Specific examples include those in which the panel is pressed in one direction with an air cylinder or the like, and those in which a latch is inserted so as to penetrate the panel and the frame. The latch is interlocked with the knob, and by operating the knob, the latch is pulled out and the panel can move freely.

  With regard to folding doors, various technical developments are underway, as described in the patent documents described below. In patent document 1, when opening a folding door from the outside, the pulling handle with a latch which improved the safety | security to the person inside is disclosed. The folding door puller is interlocked with the engagement latch. When the pulling handle is operated, the engagement latch moves to freely open the door. However, when the presence sensor detects that there is a person inside, the movement of the engagement latch is restricted and the door cannot be opened from the outside.

  Patent Document 2 discloses a folding door device capable of quickly stopping a door body when the door body constituting the folding door is closed. This folding door device is composed of two door bodies on the door end side and the door bottom side, and an immovable portion surrounding them, and the immovable portion is provided with a movement support portion that serves as a guide for the door body, Concave and convex engaging means is incorporated between the movement support portion and the door-end side door body. As soon as the door body is completely closed, the concave and convex engaging means is fitted, so that the door body is quickly integrated with the immovable portion without shaking like a pendulum.

JP 2000-356062 A JP 2009-280996 A

  In order to maintain the folding door in a closed state, when a latch is incorporated in the panel, a frame or a hole into which the latch is fitted is provided in the frame surrounding the panel. Therefore, it is difficult to freely select the structure and material of the frame, and there is a possibility that the folding door with the design desired by the consumer cannot be provided. In order to eliminate this point, it is necessary to fundamentally review the structure of the latch.

  To open a closed folding door, it is necessary to pull the panel toward you or push it into the back. If the panel is pulled to the near side, the person can grasp the behavior of the panel, so the possibility of contact with the panel is extremely low, and there is no problem with safety. However, when a panel is pushed into the back side, if a person happens to be on the other side by accident, the person may accidentally come into contact with the panel that pops out and may fall over trying to avoid contact. This can be solved by providing the panel with translucency, but it is still not a perfect countermeasure, such as a blind spot remaining. Also, if the panel is pushed into the back side, a finger or the like may be pinched between the two panels. Therefore, in consideration of safety, when opening the folding door, it is preferable to draw the panel toward the near side.

  The present invention has been developed on the basis of such circumstances, and it is an object of the present invention to provide a folding door that does not require a latch to be fitted into a frame and that is excellent in safety.

The invention according to claim 1 for solving the above-mentioned problem is a folding door in which side end surfaces of two panels are adjacent to each other and both panels are rotatably connected, and the two adjacent panels are A connecting body that is arranged so as to straddle the boundary of the panel and is rotatably attached to each of the panels, a pair of gears that are attached to each of the two adjacent panels and maintain meshing, and the connection Two rows of central axes that pass through the body rotatably and serve as the center of rotation of the pair of gears, a latch that can restrain the panel and the coupling body to be unrotatable, and a knob that is operated when opening the folding door And a transmission means for transmitting the operation of the knob to the latch, the latch being displaceable along one of the central axes, and either the coupling body or the panel having a concave shape. A receiving hole is provided, and the rack Is provided with a projecting piece that fits into the receiving hole, and when the projecting piece fits into the receiving hole, the panel and the connecting body are made unrotatable. The folding door is characterized in that the panel and the connecting body can be rotated by being pulled out from the receiving hole.

  The folding door according to the present invention has a configuration in which a plurality of upright panels are arranged, side end surfaces of adjacent panels are arranged in parallel with a slight gap therebetween, and the adjacent panels are rotatably connected. Three or more panels can be connected. Moreover, like the conventional folding door, all the panels are attached so that the inside of the frame comprised by a duck etc. may be plugged up. One panel near the end is pivotably attached to the frame, and the movement range of the remaining panels is restricted by a guide so that the other panels are not detached from the frame. Therefore, each panel draws a fixed trajectory when the door is opened and closed.

  The coupling body is for pivotally connecting two adjacent panels, and is arranged so as to straddle the boundary between the two adjacent panels, and is further rotatably attached to each panel. . By using the coupling body, the gap between the two panels is maintained constant, and one panel can freely rotate around the other panel. Each panel incorporates a central axis for pivotally attaching the connecting body. The central axes of these two rows are aligned parallel to the longitudinal direction of the panel side end face.

  When two panels are connected via the connecting body, the individual panels can be rotated in both the left and right directions around the two rows of central axes. Therefore, when the folding door is closed, the panel can be opened in both the near side and the far side. In addition, since the connection body plays an important role for connecting two panels and receives a vertical load acting on the panels, it needs a certain strength and is often arranged concentrically at two upper and lower positions of the panel.

  The gear is used to synchronize the rotation of the two panels. One of the meshing gears is attached to one panel, the other gear is attached to the other panel, and the boundary between the two panels. Both gears mesh. As a matter of course, the individual gears have the same diameter, are aligned with the central axis of the coupling body, and are non-rotatably attached to the panel. By using a pair of gears in this way, the behavior of the two panels is restricted, and when one panel and the coupling body are fixed so as not to be rotatable, the other panel is also interlocked and cannot be rotated. In addition, although only one set of gears can be arranged at the boundary of the panel, two sets of gears are often arranged up and down as in the case of the coupling body.

The latch is used to fix the panel and the connecting body in a non-rotatable manner and maintain the folded door closed, and is inserted so as to penetrate the panel and the connecting body. Further, the latch is incorporated in any one of the plurality of panels to be connected, and is displaceable along the central axis in the panel. The intrusion piece and the receiving hole are parts that realize the function of making the panel and the connecting body unrotatable. The intrusion piece is provided at the tip of the latch and the receiving hole is provided at a position facing the intrusion piece. . When the projecting piece fits into the receiving hole, the latch comes into contact with both the panel and the coupling body, and both are fixed to be unrotatable.

  The receiving hole is a concave shape obtained by scraping the surface of the coupling body. However, on the contrary, a latch can be accommodated inside the coupling body and a receiving hole can be provided in the panel. The two adjacent panels are interlocked by a gear, and if the rotation of one panel and the connecting body can be restricted, the two panels are inevitably impossible to rotate. Therefore, the latch may be incorporated in only one of the panels at the boundary between the two panels.

  The shape of the rush piece and the receiving hole can be freely determined, but both are often tapered so that the rush piece fits into the receiving hole immediately before the panels are aligned. In addition, the receiving hole may be a groove instead of a hole whose entire circumference is closed as long as it can securely fit the protruding piece and make the panel and the connecting body unrotatable. In addition, in order to prevent fine movement of the closed panel, it is necessary to incorporate the latch without loosening.

  The transmission means is for transmitting the operation of the knob to the latch, and uses a wire, a metal rod, or the like. When the knob is not operated, the entry piece is fitted into the receiving hole by an elastic body such as a spring, and the folding door cannot be opened. However, by operating the knob, the entry piece can be pulled out of the receiving hole and the folding door can be opened. If a switch is incorporated in the knob and the latch is driven by a solenoid or motor, the transmission means becomes an electric circuit.

  When the folding door is fully opened, the adjacent panels are folded and both surfaces are in close contact. Therefore, when the knob protrudes from the panel, it cannot interfere with the adjacent panel and obtain a sufficient opening width. In order to solve this problem, the knob is preferably embedded in the surface of the panel. However, if it is difficult to embed the knob, the surface of the panel facing the knob is partially depressed.

  As described above, the latch is structured to be inserted so as to penetrate the panel and the connection body, so that it is not necessary to provide a hole, a groove, or the like for fitting the latch in the frame surrounding the panel. Therefore, the configuration and material of the frame can be freely selected.

  The invention according to claim 2 is a structure for opening the panel by pulling it toward the front side in any of the front and back surfaces of the folding door, and the knobs are arranged on both the front surface and the back surface of the panel. Both are characterized in that they are displaced in the direction of drawing to the near side. Since this knob is arranged on both the front and back sides of the panel, the folding door can be opened from both sides. The “front surface” and the “back surface” are defined to identify the two widest surfaces of the panel, and there is no difference in structure between the “front surface” and the “back surface”.

  Further, this knob can be displaced only in the direction of pulling toward the front side (the direction of moving away from the panel), like a hinged automobile door (outside). Therefore, when opening the folding door, the knob is pulled toward both the front surface and the back surface of the panel to project the panel to the near side.

  When the knob is actually operated, the rush piece is first withdrawn from the receiving hole, so that the two panels can be freely rotated, and the panel opens to the near side by further operation. When the knob is pulled toward the front side and then intentionally pushed in the opposite direction, the latch is displaced and the rush piece is again fitted into the receiving hole, so that the panel cannot be opened to the back side.

  The invention according to claim 3 is for facilitating the operation when closing the folding door, and the knob is provided with a secondary latch that fits into a hanging hole formed in the panel, and the auxiliary latch is pulled out from the hanging hole. Thus, the knob can be displaced. When closing the folding door, the knob may be pulled toward the near side depending on the position of the operator. However, when the knob is pulled to the near side, the latch is retracted via the internal transmission means, and even when the two panels are aligned, the latch cannot perform its original function, and the panel is somewhat stationary. It may take time.

  The present invention responds to this situation by providing a sub-latch on the knob, and forming a hook hole in the panel for fitting the sub-latch, and pulling out the sub-latch from the hook hole for the first time. It has a structure that can be pulled to the near side. By providing the auxiliary latch, the knob is usually integrated with the panel. Even if the knob is simply pulled toward the front side, only the knob is not displaced, and the latch does not move backward. Therefore, when closing the folding door, as soon as the two panels are aligned, the latch functions immediately and the panel quickly stops. When opening the folding door, prior to pulling the knob, the sub-latch is pulled out from the hanging hole. In addition, the specific configuration of the sub-latch is flexible, but consideration should be given to smooth operation when opening the folding door.

  As in the invention described in claim 1, the two panels constituting the folding door are connected to the connecting body with a gear, and the latch is operated between the panel and the connecting body, so that the frame surrounding the panel There is no need to provide a hole or groove for fitting the latch. Therefore, the configuration and material of the frame can be freely selected, and a folding door designed by the consumer can be provided. In addition, by housing the entire latch inside the panel or connecting body, the presence of the latch can be concealed, and the aesthetics of the folding door can be improved.

  As in the invention according to claim 2, by arranging knobs on both the front and back surfaces of the panel, both knobs can be displaced only in the direction of pulling toward the front side, so that both the front and back surfaces of the panel are Passers-by cannot push the panel back. Therefore, even if another person is present on the opposite side of the folding door as seen from the passerby, the person can be prevented from coming into contact with the panel, and the safety is excellent.

  By providing the sub-latch on the knob as in the third aspect of the invention, the knob is usually integrated with the panel. Therefore, when closing the folding door, even if the knob is pulled toward the near side, the latch can be prevented from retreating, and when the two panels are aligned, the latch functions immediately and the panel can be quickly stopped.

It is a perspective view which shows the example of a structure of the folding door by this invention, The upper part of the figure has drawn the whole folding door, and the lower part of the figure has drawn the detail of the lower center. It is the perspective view and longitudinal cross-sectional view which show the detail of the latch and coupling body of FIG. It is a perspective view which shows the component of the lower center of the folding door drawn in FIG. It is a perspective view which shows the component of the upper center of the folding door drawn in FIG. It is a perspective view which shows the center inside of the folding door drawn in FIG. 1, and the rushing piece is inserted in the receiving hole. Like FIG. 5, it is a perspective view which shows the center inside of a folding door, but the rush piece is pulled out from the receiving hole. The right panel in FIG. 6 is pushed into the back side, and the two panels are overlapped, and the panel in which the latch is incorporated is located on the near side. Contrary to FIG. 7, the right panel is pulled toward the near side, and the two panels are overlapped, and the panel incorporating the latch is located on the back side. It is a perspective view which shows the detail of the knob periphery drawn in FIG. It is a perspective view which shows the connection structure of a knob and a main wire. It is the perspective view which expanded the folding door of FIG. 1, and two panels of right and left are located in a line. FIG. 12 is a perspective view of a state in which the front door of FIG. FIG. 13 is a perspective view showing a state where the folding door is opened by pulling the knob on the back side, contrary to FIG. 12. It is a perspective view which shows the structure which embedded most latches in the connection body and provided the receiving hole in the panel. FIG. 15 is a perspective view of the assembled state of the elements shown in FIG. 14, in which the latch is pulled out in the upper part of the figure and the latch is lowered in the lower part of the figure. FIG. 14 is a perspective view showing a state immediately before the folding door is gradually closed and completely closed after the folding door is opened as shown in FIG. 13; It is a perspective view which shows the structure which cannot draw out a subwire only by incorporating a sublatch in a knob and only pulling the knob to the near side. FIG. 18 is a perspective view showing a state in which the knob of FIG. 17 is incorporated in the panel.

  FIG. 1 shows a configuration example of a folding door according to the present invention. The upper part of the figure is the whole folding door, and the lower part of the figure is the detail of the lower center. In this folding door, as shown in the figure, two right and left panels 11, 21 are arranged in a straight line, and a linear guide 64 is arranged thereon. The guide 64 is fixed to a frame (not shown) surrounding the folding door. A fulcrum 14 protrudes from the right end of the upper surface of the right panel 11, and its tip is inserted into the guide 64. The fulcrum 14 is rotatable with respect to the guide 64 and serves as a rotation center of the right panel 11. A driven shaft 24 projects from the upper left end of the left panel 21. The driven shaft 24 is inserted into the guide 64 and can move only in the longitudinal direction thereof. Therefore, the fulcrum 14 and the driven shaft 24 cannot be separated from the guide 64, and the boundary portion between the two panels 11 and 21 protrudes from the guide 64.

  The two panels 11 and 21 are connected via upper and lower connecting bodies 41 and 43. The connecting bodies 41 and 43 are in the shape of “8” with a narrowed center, and are inserted so as to straddle the boundaries of the panels 11 and 21. Side grooves 12, 22, 13, and 23 are formed on the side end surfaces of the panels 11 and 21 in order to insert the connecting bodies 41 and 43. The height of the side grooves 12, 22, 13, and 23 is equal to the thickness of the coupling bodies 41 and 43, and prevents vertical steps from being generated in the left and right panels 11 and 21, and also carries vertical load transmission. A pair of gears 18 and 28 for maintaining meshing are attached to the upper and lower surfaces of the boundary between the panels 11 and 21.

  Knobs 32 and 36 that are operated when the folding door is opened are incorporated in both the front surface and the back surface of the left panel 21. The knobs 32 and 36 are normally embedded in the panel 21, but are pulled toward the front side when operated. Further, in order to insert a finger behind the knobs 32 and 36, recesses 31 and 35 in which the panel 21 is cut out are provided around the knobs 32 and 36. The recesses 31 and 35 have different depths on the front and back surfaces of the panel 21 to ensure the necessary depth.

  The boundary portion between the two panels 11 and 21 has a structure as shown in the lower part of the figure. Each of the panels 11 and 21 is inserted with central shafts 15 and 25 extending vertically through the connecting body 41, and the connecting body 41 can freely rotate with respect to any of the central shafts 15 and 25. it can. Therefore, in the drawing, the two panels 11 and 21 are arranged in a straight line, but these can also be bent into a "<" shape. Further, the upper and lower surfaces of the coupling body 41 are in contact with the upper and lower surfaces of the side grooves 12 and 22 provided in the panels 11 and 21.

  A pair of gears 18 and 28 are attached to the lower surface of the boundary between the two panels 11 and 21. The individual gears 18 and 28 are concentric with the central shafts 15 and 25 and are completely integrated with the panels 11 and 21 by screws 68. Note that the distance between the two central axes 15 and 25 is kept constant by the connecting body 41. Therefore, even when the crossing angle of the two panels 11 and 21 changes, the meshing of the pair of gears 18 and 28 is maintained. Further, the pair of gears 18 and 28 have the same number of teeth, and when the folding door is opened and closed, the two panels 11 and 21 are deformed while maintaining an isosceles triangle.

  The left panel 21 contains a latch 51 that keeps the folding door closed. The latch 51 is in the form of a long and narrow bar, and is composed of a pipe 54, a slider 56, a rush piece 57, and the like. The central shaft 25 passes through the latch 51 and can only be displaced vertically. The connecting body 41 is formed with a receiving hole 47 for fitting the protruding piece 57. When the protruding piece 57 is actually lowered and fitted into the receiving hole 47, the panel 21 and the connecting body 41 are rotated. Become immobile. The intrusion piece 57 has a tapered shape so that it smoothly fits into the receiving hole 47.

  The latch 51 is displaced up and down by the main wire 61 and the link 63. The main wire 61 is a transmission means for transmitting the operation of the knobs 32 and 36 to the latch 51. When one of the knobs 32 and 36 is operated, the main wire 61 is pulled up. Further, the link 63 can be rotated by a fulcrum pin 30 provided inside the panel 21, the main wire 61 is locked at an intermediate portion thereof, and the distal end portion of the link 63 is connected to the latch 51. Therefore, when the main wire 61 is pulled up, the latch 51 is also pulled up via the link 63.

  When the folding door is closed, various external forces such as wind pressure act on the panels 11 and 21, but the latch 51 needs to withstand these external forces and prevent the panels 11 and 21 from moving. If the latch 51 is loose, the fine movement of the panels 11 and 21 cannot be suppressed. Therefore, the latch 51 is restrained by the guide hole 34 and the guide wall 26 in addition to the central shaft 25. The guide hole 34 is a round hole provided in the panel 21 and has an inner diameter corresponding to the pipe 54 of the latch 51 and regulates the displacement of the pipe 54 in the radial direction. On the other hand, the guide wall 26 is a vertical wall surface provided inside the panel 21 and is arranged on the left and right sides so as to sandwich the slider 56. The slider 56 is displaced up and down while sliding on the surface of the guide wall 26.

  The elastic body 60 is a coil spring that is sandwiched between the guide hole 34 and the slider 56, is incorporated in a compressed state, and always generates a reaction force that pushes down the latch 51. Therefore, when the main wire 61 is loosened, the latch 51 is immediately dropped, and the rush piece 57 comes into contact with the coupling body 41. In addition, the side end surfaces where the two panels 11 and 21 face each other are semicircular around the central axes 15 and 25, and the gap is kept constant in any state.

  FIG. 2 shows details of the latch 51 and the coupling body 41 of FIG. The latch 51 includes a pipe 54, a ring 55, a slider 56, and a projecting piece 57, and the pipe 54 has an inner diameter that allows the central shaft 25 to be easily inserted, and can be displaced vertically along the central shaft 25. The ring 55 has an inner diameter that allows the pipe 54 to be inserted without difficulty, and can be displaced up and down along the pipe 54, and can also rotate with respect to the pipe 54. Further, a round bar-like connection pin 59 projects from the outer peripheral surface of the ring 55 to connect to the link 63 of FIG. A flange 58 for preventing the ring 55 from slipping out is provided at the upper end of the pipe 54.

  The slider 56 has a rectangular parallelepiped shape, but has a hole in the center for inserting the pipe 54. The rush piece 57 has a constricted center and a slightly tapered tip, and further has a hole in the center so that the central shaft 25 can be inserted without difficulty. When assembling the latch 51, first, the pipe 54 is inserted into the ring 55, then the lower end of the pipe 54 is inserted into the slider 56, and finally the lower end surface of the pipe 54 is brought into contact with the upper surface of the entry piece 57. . Then, the pipe 54, the slider 56, and the rush piece 57 are completely integrated by bonding or the like.

  The connecting body 41 is disposed so as to straddle the boundary between the two panels 11 and 21, and has a shape of “8” composed of two curved surfaces, and each curved surface is concentric with the side end surfaces of the panels 11 and 21. ing. In addition, the connecting body 41 is provided with two intermediate holes 45 for inserting the central shafts 15 and 25. The inner hole 45 has an inner diameter that does not restrict the rotation of the central shafts 15 and 25, but should not loosen. Further, a receiving hole 47 is formed on the upper surface of the connecting body 41 in order to fit the rush piece 57. The receiving hole 47 has a constricted center corresponding to the rushing piece 57 and is tapered toward the back.

  The two rows of central axes 15 and 25 inserted into the inner holes 45 maintain a constant distance. The latch 51 inserted into the central shaft 25 can be displaced up and down. When the latch 51 is lowered, the entry piece 57 is fitted into the receiving hole 47, and the latch 51 and the connecting body 41 are integrally rotated with respect to the central shaft 25 thereafter. In addition, when both the protrusion piece 57 and the receiving hole 47 are tapered, when the lower surface of the protrusion piece 57 and the upper surface of the coupling body 41 are aligned at the same height, there is a certain gap between them. Therefore, immediately before the two panels 11 and 21 are aligned, the entry piece 57 fits into the reception hole 47, and then the entry piece 57 reaches the depth of the reception hole 47, so that the two panels 11 and 21 are Naturally aligned.

  FIG. 3 shows components in the lower center of the folding door depicted in FIG. The two panels 11 and 21 are provided with side grooves 12 and 22 for inserting the connecting body 41, and further provided with shaft holes 19 and 29 for inserting the central shafts 15 and 25. The center shafts 15 and 25 pass through the top and bottom of the panels 11 and 21, and nuts 65 are screwed to both ends thereof to be fixed to the panels 11 and 21, and serve as the rotation center of the coupling body 41 and the gears 18 and 28. Take on the function. The gears 18 and 28 are attached to the panels 11 and 21 with screws 68.

  The ring 55 of the latch 51 is disposed on the guide hole 34. Further, the elastic body 60 is sandwiched between the guide hole 34 and the slider 56. Therefore, the latch 51 is incorporated into the panel 21 according to a predetermined procedure. Then, by inserting the central shaft 25 into the latch 51 and further inserting the right end of the link 63 into the connection pin 59, the latch 51 is displaced up and down by the link 63. The left end of the link 63 is inserted into the fulcrum pin 30 inside the panel 21, and the main wire 61 is locked to an intermediate portion of the link 63, so that the latch 51 can be pulled up.

  FIG. 4 shows components in the upper center of the folding door depicted in FIG. Also about the upper part of a folding door, the connection body 43 is arrange | positioned so that the panels 11 and 21 on either side may be straddled, and also the point which attaches a pair of gearwheels 18 and 28 with the screw | thread 68 is the same as the lower part. Moreover, since the central shafts 15 and 25 penetrate the upper and lower sides of the panels 11 and 21, the connection body 43 and the gears 18 and 28 are concentric with the lower part. In addition, the two panels 11 and 21 are provided with side grooves 13 and 23 for inserting the connecting body 43, and shaft holes 19 and 29 for inserting the central shafts 15 and 25 are provided above and below them. . Note that there is no latch 51 at the top of the folding door. Therefore, the connecting body 43 has a simple “8” shape, and the upper and lower surfaces thereof are simple planes.

  FIG. 5 shows the inside of the folding door depicted in FIG. 1, and the entry piece 57 is fitted in the receiving hole 47. In addition, since there is no change in a shape between the upper end part and lower end part of the panels 11 and 21, drawing is abbreviate | omitted. The central shafts 15 and 25 are inserted into the shaft holes 19 and 29 of the panels 11 and 21, and further pass through the coupling bodies 41 and 43 and the gears 18 and 28. Then, nuts 65 are screwed into both end portions of the central shafts 15 and 25 so as to sandwich the gears 18 and 28, and the panels 11 and 21 and the central shafts 15 and 25 are integrated.

  The connecting bodies 41 and 43 are inserted with two rows of central shafts 15 and 25 on both the upper and lower sides, and can freely rotate about the respective central shafts 15 and 25. The coupling bodies 41 and 43 are inserted into the side grooves 12, 22, 13, and 23 provided on the side end surfaces of the panels 11 and 21 without any gaps, so that there is no step between the left and right panels 11 and 21, and the gears 18 and 28. Maintains a smooth engagement. In this figure, the main wire 61 is loose, the link 63 hangs down from the fulcrum pin 30, and the interlocking latch 51 is also lowered by the reaction force of the elastic body 60. Therefore, the rush piece 57 is fitted in the receiving hole 47.

  When the connecting piece 41 is rotated around the central axis 25 by fitting the protruding piece 57 into the receiving hole 47, the latch 51 also attempts to rotate integrally. At that time, the slider 56 of the latch 51 is sandwiched between the left and right guide walls 26, and the left panel 21 rotates integrally with the connecting body 41. Thus, the panel 21 and the coupling body 41 are integrated by the fitting piece 57 being fitted into the receiving hole 47. Further, the pair of gears 18 and 28 mesh with each other, and the right panel 11 cannot rotate with respect to the coupling body 41. Therefore, even when the two panels 11 and 21 receive an external force, the two panels 11 and 21 are kept in a state of being aligned with each other.

  As described above, if the rotation of the panel 21 and the connecting body 41 can be restricted even at one place, the two adjacent panels 11 and 21 are integrated so as not to rotate. Therefore, the latch 51 can be incorporated in the adjacent panel 11 in addition to the upper part of the panel 21. However, in order to incorporate the latch 51, it is necessary to arrange the link 63 and the like in the periphery.

  FIG. 6 shows the inside of the folding door as in FIG. 5, but the entry piece 57 is pulled out from the receiving hole 47. In this figure, tension is applied to the main wire 61, the link 63 is lifted around the fulcrum pin 30, and the latch 51 is also lifted in conjunction. Therefore, the rush piece 57 is pulled out from the receiving hole 47, and the two panels 11 and 21 can freely rotate. At this time, the distance between the slider 56 and the guide hole 34 is narrowed, and the elastic body 60 is compressed up and down.

  In FIG. 7, the panel 21 on which the latch 51 is incorporated is located on the near side in a state where the right panel 11 in FIG. 6 is pushed inward and the two panels 11 and 21 are overlapped. When the right panel 11 in FIG. 6 is pushed inward, the two panels 11 and 21 are overlapped and the folding door is fully opened as shown in this figure. As the panels 11 and 21 rotate, the positional relationship between the panels 11 and 21 and the coupling bodies 41 and 43 also changes. In this figure, the coupling bodies 41 and 43 protrude in the thickness direction of the panels 11 and 21. ing.

  After the two panels 11 and 21 are bent, the main wire 61 is loosened, and even when the latch 51 is pushed down by the reaction force of the elastic body 60, the contours of the lower surface of the protrusion piece 57 and the upper surface of the receiving hole 47 are shifted. Therefore, the rush piece 57 does not fit into the receiving hole 47, and both come into surface contact. By finishing these both surfaces in a slidable state, the connecting body 41 can freely rotate with respect to the central axis 25 and the panels 11 and 21 can move freely even when both surfaces come into surface contact. It is. However, when the two panels 11 and 21 are arranged in a substantially straight line, the urging piece 57 is immediately fitted into the receiving hole 47 by the reaction force of the elastic body 60, and the panels 11 and 21 cannot be moved.

  FIG. 8 also shows a state in which the two panels 11 and 21 are overlapped. However, contrary to FIG. 7, the right panel 11 is pulled toward the front side, and the panel 21 in which the latch 51 is incorporated is located on the back side. ing. As described above, the two panels 11 and 21 connected by the connecting bodies 41 and 43 and the gears 18 and 28 can freely rotate within a range until they overlap each other.

  FIG. 9 shows details around the knobs 32 and 36 depicted in FIG. The knobs 32 and 36 are elongated rods attached to both the front surface and the back surface of the panel 21, and a round hole 73 for attaching to the panel 21 and a protruding nose 72 projecting in a semicircular shape are provided on one end side. Further, auxiliary wires 62 and 66 are inserted on the other end side.

  The recesses 31 and 35 are formed by hollowing out the front and back surfaces in order to embed the entire knobs 32 and 36 in the panel 21, and have a depth that allows a finger to be inserted behind the knobs 32 and 36. For this reason, the recesses 31 and 35 are designed so as not to penetrate the opposite surface by changing the height between the front surface and the back surface of the panel 21. In addition, the recesses 31 and 35 incorporate a shaft 33 that is inserted into the round holes 73 of the knobs 32 and 36, and a contact surface 37 that contacts the nose 72 is provided in the back thereof. The knobs 32 and 36 and the recesses 31 and 35 have the same shape on both the front and back surfaces.

  When the shaft 33 is inserted into the round hole 73 and the knobs 32 and 36 are attached to the panel 21, the knobs 32 and 36 are drawn to the panel 21 by the auxiliary wires 62 and 66, and the knobs 32 and 36 are embedded in the panel 21. At this time, the knobs 32 and 36 can be displaced only in the direction away from the panel 21. When the knob 32 is actually pulled to the near side, the right side of the knob 32 jumps out of the panel 21 and the auxiliary wire 62 is pulled out as shown in the “state with the knob attached” at the bottom of the figure. If the knob 32 is continuously pulled, the nose 72 will eventually come into contact with the contact surface 37, and thereafter, the force that pulls the knob 32 is used to move the panel 21.

  FIG. 10 shows a connection structure between the knobs 32 and 36 and the main wire 61. The main wire 61 functions as a transmission means for interlocking the knobs 32 and 36 and the latch 51 as shown in FIG. However, in the present invention, since the knobs 32 and 36 are provided on both the front and back surfaces of the panel 21, the knobs 32 and 36 and the main wire 61 cannot be simply connected. Therefore, the operation of the individual knobs 32 and 36 is transmitted to the main wire 61 via the sub wires 62 and 66 and the block 69.

  The block 69 is a simple rectangular parallelepiped, and can move only in a straight line by four rows of ridges 39 formed inside the panel 21. Further, the individual sub wires 62 and 66 are fixed to the stopper 71 via springs 70. When the stopper 71 is integrated with the panel 21, the springs 70 are pulled by pulling the knobs 32 and 36, and the knobs 32 and 36 can be returned to their original state by this reaction force.

  FIG. 11 is an enlarged view of the folding door of FIG. 1, and the left and right panels 11, 21 are arranged in a straight line. The two panels 11 and 21 are accommodated in the frame 10, and a linear guide 64 is disposed on the panels 11 and 21. The fulcrum 14 protruding from the upper surface of the right panel 11 is inserted into the guide 64, and the right panel 11 can rotate around the fulcrum 14. The driven shaft 24 protruding from the upper surface of the left panel 21 is inserted into the guide 64 and can move only in the longitudinal direction. For this reason, the fulcrum 14 and the driven shaft 24 cannot be separated from the guide 64, and when the two panels 11 and 21 open and close, a fixed locus is drawn, and the boundary portion of the panels 11 and 21 protrudes most from the guide 64.

  The two panels 11 and 21 are connected via upper and lower connecting bodies 41 and 43, and a pair of gears 18 and 28 for maintaining meshing are attached to the boundary between the two panels 11 and 21. is there. Furthermore, knobs 32 and 36 are attached to both the front and back surfaces of the left panel 21. Normally, the knobs 32 and 36 are embedded in the panel 21, and the internal latch 51 is fitted in the connecting body 41. Therefore, the panels 11 and 21 are immovable and do not open naturally due to wind pressure or the like. However, when the knobs 32 and 36 are put on the fingers and pulled toward the front side, the latch 51 is pulled out from the connecting body 41, the two panels 11 and 21 can be moved, and the knobs 32 and 36 are continuously pulled toward the front side. As a result, the panels 11 and 21 protrude toward the front side, and the folding door opens.

  FIG. 12 shows a state where the folding door is opened by pulling the knob 32 on the surface side of FIG. The two panels 11 and 21 protrude and overlap in the lower right direction, and a passage is secured under the guide 64. When the folding door is thus opened, the latch 51 cannot be fitted into the connecting body 41 as shown in FIG. 7, and the two panels 11 and 21 can move freely. When the folding door is closed again, the knob 32 is pulled toward the front side, the two panels 11 and 21 are opened in a "<" shape, and then the knob 32 is pushed in. Then, immediately before the two panels 11 and 21 are aligned, the latch 51 is fitted into the connecting body 41 and the closed state is maintained.

  FIG. 13 shows a state in which the folding door is opened by pulling the knob 36 on the back side, contrary to FIG. The two panels 11 and 21 protrude and overlap in the upper left direction, and a passage is secured under the guide 64. As described above, in the present invention, when the folding door is to be opened on either the front surface side or the back surface side of the panels 11 and 21, it is necessary to pull the knobs 32 and 36 toward the front side and to project the panels 11 and 21 toward the front side. There is. Therefore, even when another person is present on the opposite side of the folding door, the panels 11 and 21 can be prevented from coming into contact with the person, and the safety is excellent.

  FIG. 14 shows a configuration in which most of the latch 52 is embedded in the coupling body 42 and the receiving hole 27 is provided in the panel 21. The latch 52 may be disposed so as to straddle the panel 21 and the connecting body 42, and most of the latch 52 may be embedded in the connecting body 42 and the receiving hole 27 may be provided in the corresponding panel 21 as shown in this figure. The coupling body 42 is provided with a rectangular cross-section cavity 46 that is increased in thickness to embed the latch 52 and further accommodates the latch 52. The slider 56 is sized so that it can slide in the cavity 46 without rattling. Therefore, the latch 52 can be displaced only in the vertical direction, and the protruding piece 57 can be fitted into the receiving hole 27.

  In this figure, the central shaft 25 and the coupling body 42 are not in contact with each other. However, a slider 56 is interposed between the two, and the coupling body 42 can smoothly rotate about the central axis 25. The upper portion of the latch 52 protrudes from the cavity 46, the pipe 54 is inserted into the guide hole 34, and the flange 58 and the ring 55 are located above the guide hole 34. The guide hole 34 has an inner diameter capable of rotatably holding the pipe 54, and the coupling body 42 and the latch 52 can freely rotate with respect to the panel 21.

  FIG. 15 shows a state where the elements shown in FIG. 14 are assembled. In the upper part of the figure, the latch 52 is pulled out, and the rush piece 57 is separated from the receiving hole 27. Therefore, the coupling body 42 can freely rotate around the central axis 25. At that time, the latch 52 rotates integrally with the coupling body 42, but the guide hole 34 does not restrain the pipe 54, so that the rotation is not hindered.

  In the lower part of the figure, the latch 52 is lowered and the projection piece 57 is fitted in the receiving hole 27, and the panel 21 and the connecting body 42 are integrated through the latch 52, so that the two panels 11, 21 are aligned. Although not shown, originally, the link 63 is connected to the connection pin 59 as shown in FIG. For this reason, the connection pin 59 should not rotate integrally with the entry piece 57 or the like, and the ring 55 at the base of the connection pin 59 is rotatable with respect to the pipe 54.

  FIG. 16 shows a state immediately before the panels 11 and 21 are gradually closed and completely closed after the folding door is opened as shown in FIG. At this time, in order to completely close the folding door from the front side of the figure, the knob 32 is pulled toward the front side. However, pulling the knob 32 inevitably causes the latch 51 to retract. Therefore, even if the two panels 11 and 21 are aligned, the latch 51 does not fit into the coupling body 41, and the panels 11 and 21 eventually project to the opposite side. Thereafter, when the knob 32 is pushed in and the two panels 11 and 21 are aligned, the latch 51 functions normally and the panels 11 and 21 finally come to rest. In this way, depending on the situation when closing the folding door, it is required to push the knob 32 after it is pulled, which complicates the operation.

  FIG. 17 is for improving the situation described with reference to FIG. 16, and shows a configuration in which the auxiliary wire 78 cannot be pulled out simply by incorporating the auxiliary latch 78 into the knob 32 and simply pulling the knob 32 forward. ing. In the knob 32, an intermediate groove 75 extending in the longitudinal direction is formed to accommodate the sub latch 78. The sub-latch 78 is in the shape of an elongated bar and can move along the middle groove 75, and its right end protrudes from the knob 32. Further, a hooking hole 38 is formed in the recess 31 of the panel 21 in order to fit the sub-latch 78 protruding from the knob 32. When the sub latch 78 is fitted into the hooking hole 38, the knob 32 is integrated with the panel 21 and the sub wire 62 cannot be pulled out.

  A planar finger holding plate 79 is provided at the left end of the sub latch 78. The finger holding plate 79 passes through the slit 76 and is positioned on the side surface of the knob 32, and the sub latch 78 can be artificially operated. Further, a push spring 77 is incorporated at the left end of the middle groove 75, and the sub latch 78 is always pushed rightward so that the tip protrudes from the right end of the knob 32 and is fitted into the hooking hole 38. When opening the folding door, the finger holding plate 79 is moved in the left direction, and the sub latch 78 is pulled out from the hanging hole 38.

  The movement range of the sub-latch 78 is regulated by the slit 76, and the sub-latch 78 is not detached from the knob 32. The tip of the sub latch 78 is formed in a semicircular shape. Therefore, when the knob 32 protruding from the panel 21 returns to the original state, the sub latch 78 contacts the surface of the panel 21 and is pushed to the left side. After that, when the sub latch 78 reaches the hooking hole 38, 77 automatically engages both sides.

  FIG. 18 shows a state in which the knob 32 of FIG. Normally, the knob 32 is embedded in the panel 21 as shown in the upper figure. Further, the sub latch 78 is fitted in the hanging hole 38, and the knob 32 and the panel 21 are integrated. Therefore, the secondary wire 62 is not pulled simply by pulling the knob 32. If this knob 32 is introduced into the folding door of FIG. 16, the latch 51 is immediately fitted into the connecting body 41 when the knob 32 is pulled toward the near side, so that the panels 11 and 21 can be quickly stopped.

  When opening the closed folding door, first, the finger holding plate 79 is moved leftward as shown in the lower figure, and the sub-latch 78 is pulled out from the hooking hole 38. Then, the knob 32 can be rotated, and when the knob 32 jumps out of the panel 21, the sub wire 62 is pulled and the panel 21 can be moved. The sub-latch 78 is not limited to the configuration shown so far, and details may be freely determined as long as an equivalent function can be exhibited.

10 Frame 11 Panel (right side of the figure)
12 Side groove (lower side)
13 Side groove (upper side)
14 fulcrum 15 central shaft 18 gear 19 shaft hole 21 panel (on the left side of the figure)
22 Side groove (lower side)
23 Side groove (upper side)
24 driven shaft 25 central shaft 26 guide wall 27 receiving hole 28 gear 29 shaft hole 30 fulcrum pin 31 concave portion 32 knob 33 shaft 34 guide hole 35 concave portion 36 knob 37 abutment surface 38 hooking hole 39 convex strip 41 connecting body (lower side: There is a receiving hole)
42 Linked body (bottom side: contains latch)
43 Connected body (upper side)
45 Middle hole 46 Cavity 47 Receiving hole 51 Latch (contained in panel)
52 Latch (contained in the coupling body)
54 Pipe 55 Ring 56 Slider 57 Entry piece 58 Head 59 Connection pin 60 Elastic body 61 Main wire (transmission means)
62 Sub wire 63 Link 64 Guide 65 Nut 66 Sub wire 68 Screw 69 Block 70 Spring 71 Stopper 72 Nose 73 Round hole 75 Middle groove 76 Slit 77 Push spring 78 Sub latch 79 Finger plate

Claims (3)

A folding door in which the side end surfaces of the two panels (11, 21) are adjacent to each other and both the panels (11, 21) are rotatably connected,
A connecting body (41, 42, 43), which is disposed so as to straddle the boundary between the two adjacent panels (11, 21) and is rotatably attached to each of the panels (11, 21);
A pair of gears (18, 28) attached to each of the two adjacent panels (11, 21) to maintain the meshing;
Two rows of central axes (15, 25) that pass through the coupling body (41, 42, 43) in a rotatable manner and serve as a rotation center of the pair of gears (18, 28);
Latches (51, 52) capable of restraining the panel (21) and the coupling bodies (41, 42) so as not to rotate;
Knobs (32, 36) operated when opening the folding door,
A transmission means (61) for transmitting the operation of the knob (32, 36) to the latch (51, 52);
With
The latches (51, 52) are displaceable along one of the central axes (25),
Either one of the connecting body (41) or the panel (21) is provided with a concave receiving hole (47, 27), and the latch (51, 52) is provided with the receiving hole (47, 27). Provide a rush piece (57) that fits into the
When the projecting piece (57) is fitted into the receiving hole (47, 27), the panel (21) and the coupling body (41, 42) become unrotatable,
The panel (21) and the coupling body (41, 42) can be rotated by the transmission means (61) being pulled out of the receiving piece (57) from the receiving hole (47, 27). A folding door characterized by   The folding door according to claim 1, wherein the knobs (32, 36) are arranged on both the front surface and the back surface of the panel (21), and both are displaced in a direction of drawing toward the front side.   The knobs (32, 36) are provided with a sub latch (78) that fits into a hook hole (38) formed in the panel (21), and the sub latch (78) is pulled out from the hook hole (38). The folding door according to claim 2, characterized in that the knob (32, 36) can be displaced.

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