JP3838255B2 - Folding door - Google Patents

Description

  The present invention is provided in a first-floor hall or the like of a building that accommodates a large number of people together with an entrance / exit door, and is opened and closed in addition to the entrance / exit door in order to enable a large number of people to enter and exit the hall. Relating to folding doors.

  In such a folding door, a pair of door plates are connected to each other in the vertical direction so as to be foldable via hinges, and when opened, the lower door plate is raised while rotating and the upper door plate is simultaneously rotated. Thus, the lower door plate is overlapped with the upper door plate from below, and when closed, the lower door plate is lowered while rotating, and simultaneously the upper door plate is rotated. The lower door panel is hung under the door panel.

  By the way, in the folding door, the other parts except the upper edge (upper arm) of the upper door panel and the lower edge (lower arm) of the lower door panel, which are rotatably connected to the vertical frame etc. via the hinge mechanism, Normally, it is not fixed and supported, and therefore, when a proper fixing mechanism for fixing these parts is not provided at the time of closing, for example, the upper and lower door plates are rolled up in a strong wind, and this rotates greatly. When a moment is applied, the upper and lower door plates rotate (sway) according to the strength of the wind, and an unpleasant collision sound is generated or the door plate is made of a glass plate. There is a possibility that the glass plate is broken or unintentional opening may occur.

  Also, in this type of folding door, the upper door plate and the lower door plate are in a state of stretching each other in the closed state. Therefore, when opening the folding door from the closed state, the lower door plate is simply raised. Even if it tries, the mutual rotation between the upper door plate and the lower door plate connected via the hinge is unlikely to occur. Therefore, the upper door plate or the lower door plate is not moved simultaneously with the rise of the lower door plate. If any one of them is required to be initially rotated by other means, and the initial rotation is not performed as desired, the door plate, the lifting mechanism, or the like may be damaged.

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is to firmly maintain an open / closed state including a midway open, and an unpleasant noise caused by the door plate rattling in a strong wind. In addition to being able to eliminate unintentional opening, in addition to being able to smoothly open the lower door panel, there is no possibility of damaging the door panel, lifting mechanism, etc. To provide a door.

  According to the present invention, the object is to fold the upper and lower door panel means together by lifting the upper and lower door panel means connected to each other in the vertical direction via the hinge means and the lower end side of the lower door panel means. The lifting means connected to the lower end side of the lower door panel means and the upper and lower door panel means are prohibited from freely rotating, and the upper and lower door panel means are mutually stretched when the upper and lower door panel means are folded by the lifting means. This is achieved by a folding door including a prohibition / release means for releasing the state and an operating means for operating the lifting means and the prohibition / release means.

  Each of the upper door panel means and the lower door panel means may be provided with an opaque or acrylic panel made of aluminum or wood as a door panel, or a glass plate, etc. When used as an evacuation exit, etc., the size of the door panel is 2 m wide, 3 m long (total of upper and lower door panels), and does not prevent people from entering and exiting with an opening height of about 2 m, but is not limited thereto. . The folding door of the present invention can be used as a wall or a lighting window when closed, and as a ventilation opening when opened. In addition, you may provide many folding doors of this invention around the hall | hole of a building.

  The prohibiting / releasing means preferably has a worm tooth and has a rotation transmission shaft connected to the operation means, a nut having a tooth meshing with the worm tooth of the rotation transmission shaft, and a screw engaging with the nut. The screw shaft is rotatably connected to any one of the upper and lower door plate means, but the present invention is not limited to this.

  In a preferred example of the actuating means, a compensation means for compensating for the difference between the actuating amount for the lifting means and the prohibition and the actuating amount for the releasing means is provided. The movement can be performed in harmony with the movement, and therefore the opening operation can be performed smoothly. This also prevents the door plate, the lifting mechanism, the initial turning mechanism and the like from being damaged.

  The lifting means includes a screw shaft that extends in the vertical direction on the left and right sides of the folding door, is arranged in parallel with each other and is rotatable, and a nut member that is screwed to the screw shaft. A preferable example is one in which the lower edge side of the means is rotatably connected. In another example, the lifting means further includes guide means for guiding the vertical movement of the nut member, The guide means includes a rail attached to the vertical frame of the folding door and a slider fitted to the rail so as to be movable in the vertical direction, and the nut member is attached to the slider. Since the nut member is supported by the guide means so as to be movable in the vertical direction, the screw shaft can be prevented from being bent, which is preferable. As described above, the lifting means may be realized by providing the screw shaft and the nut member on the left and right sides of the folding door, but the lifting means may be realized by providing them only on one side of the left and right of the folding door. Good.

  In a preferred example of the present invention, the actuating means includes an actuating force generating means for generating actuating force by at least one of automatic and manual, and a transmitting means for transmitting the actuating force generated by the actuating force generating means to the compensating means. The operating force generating means includes an electric motor in the case of automatic operation and a manual rotation handle in the case of manual operation, and the output rotation shafts of the electric motor and the manual rotation handle are respectively The compensation means is connected to the compensation means via the transmission means. As the compensation means, a thing equipped with a differential gear mechanism can be cited as a preferred example. Here, the input shaft of the differential gear mechanism is used to generate an operating force. The means may be constructed by connecting one output shaft of the differential gear mechanism to the lifting means and the other output shaft of the differential gear mechanism to the prohibiting / releasing means, but is not limited thereto.

  Further, the present invention further includes an equilibrium force generating means for generating an equilibrium force with respect to a descending force due to the weight of the upper and lower door plate means. In a preferred example, the balance force generating means includes a weight and a transmission means for transmitting a descending force of the weight as an ascending force on the lower end side of the lower door plate means, and one end of the transmission means is the lower door plate. On the lower end side of the means, a chain having the other end connected to the weight and a sprocket wheel on which the chain is hung are provided.

  According to the present invention, it is possible to firmly maintain an open state and a closed state including a midway open state, eliminate a situation in which an unpleasant noise is generated due to rattling of the door plate in a strong wind or the like, and can prevent an unintended open state. In addition, the lower door plate opening operation can be performed smoothly, and the risk of damage to the door plate and the lifting mechanism can be eliminated.

  Next, embodiments of the present invention will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

  1 to 7, the folding door 1 of this example lifts the lower and upper door plate means 3 and 4, and the lower door plate means 4, which are connected to each other via hinge means 2 so as to be foldable with respect to each other. In order to fold the upper and lower door panel means 3 and 4 with each other, the lifting means 5 connected to the lower end side of the lower door panel means 4 and the upper and lower door panel means 3 and 4 are prohibited from freely rotating, and the lifting means When the upper and lower door panel means 3 and 4 are folded by 5, the upper and lower door panel means 3 and 4 are prohibited from releasing each other's tension, the release means 6, the lifting means 5 and the prohibition and release means 6 are actuated. Means 7 and balance force generating means 8 for generating a balance force against the descending force due to the weight of the upper and lower door plate means 3 and 4 are provided.

  The upper door plate means 3 includes a panel 11 and a panel frame 12 attached by welding, screws, or the like around the back surface of the panel 11, and the upper horizontal panel frame (upper frame) 13 of the panel frame 12 is provided. One end of hinge means (not shown) is attached to the left and right sides, and the other end of each hinge means is fixed to the left and right vertical frame body 16 of the folding door 1, and thus the upper door plate means 3 is On the upper edge side, it is rotatably attached to the vertical frame 16 of the folding door 1 via hinge means.

  Similar to the upper door panel means 3, the lower door panel means 4 includes a panel 21 as a door panel, and a panel frame 22 attached by welding, screws, or the like around the back surface of the panel 21. One end of the hinge means 2 is attached to the upper horizontal panel frame (upper collar) 23, and the other end of the hinge means 2 is attached to the lower horizontal panel frame (lower collar) 24 of the panel frame 12. Thus, the upper and lower door plate means 3 and 4 are connected to each other with respect to the vertical direction via the hinge means 2 so as to be foldable. As described below, the lower door plate means 4 is rotatably connected to the lifting means 5 on the lower edge side.

  The lifting means 5 includes a screw shaft 31 rotatably disposed via a bearing on each of the left and right vertical frame bodies 16 of the folding door 1, a nut member 32 screwed into each of the screw shafts 31, and a nut member 32. A movable block 33 attached to the upper end of the screw shaft 31, a rotation transmission shaft 34 connected to the upper end of the screw shaft 31, and a guide means 35 for guiding the vertical movement of the nut member 32. The frame 22 is rotatably connected to the left and right ends of the lower horizontal panel frame 36 via pins 37, and the lower edge side of the lower door plate means 4 is thus connected to the movable block 33 and pins via the pins 37. The nut member 32 is rotatably connected. The guide means 35 includes a rail 38 attached to the vertical frame 16 of the folding door 1 and a slider 39 fitted to the rail 38 so as to be movable in the vertical direction. 33 is attached, and the nut member 32 is attached to the slider 39 via the movable block 33.

  The lifting means 5 further includes interlocking bevel gear mechanisms 40 and 41 attached to the vertical frame 16 of the folding door 1, and a rotation transmission shaft provided by bridging the interlocking bevel gear mechanisms 40 and 41. 42, the interlocking bevel gear mechanism 40 includes an input shaft 43, an output shaft 44 connected to the rotation transmission shaft 34, and an output shaft 45 connected to the rotation transmission shaft 42. The rotation of the input shaft 43 is transmitted to the rotation transmission shafts 34 and 42 via the output shaft 44 and the output shaft 45, and the interlocking bevel gear mechanism 41 is connected to the input shaft 46 connected to the rotation transmission shaft 42. And an output shaft 47 connected to the other rotation transmission shaft 34, and the rotation of the rotation transmission shaft 42 arranged in the horizontal direction is also transmitted in the vertical direction via the output shaft 47 arranged in the vertical direction. Is transmitted to the rotation transmission shaft 34 arranged in

  The prohibiting / releasing means 6 includes a gear means 53 having an input shaft 51 and an output shaft 52, a rotation transmission shaft 55 having worm teeth 54 on the outer peripheral surface and connected to the output shaft 52 of the gear means 53, One of the upper and lower door plate means 3 and 4 is screwed into a nut 57 having teeth 56 meshing with the worm teeth 54 of the rotation transmission shaft 55 on the outer peripheral surface and a female screw 58 formed in the central hole of the nut 57. On the other hand, in this example, the panel 11 of the upper door plate means 3 is provided with a screw shaft 163 that is pivotally connected in the A direction around the pin 160 via a bracket 59 and a pin 160 on the back side. The gear means 53 is composed of a bevel gear mechanism, and transmits the rotation of the input shaft 51 arranged in the vertical direction to the output shaft 52 arranged in the horizontal direction, and the housing incorporating the bevel gear mechanism is one vertical frame body. 16 is provided. The other end of the rotation transmission shaft 55 is rotatably supported by the other vertical frame body 16 via a bearing or the like. The nut 57 through which the screw shaft 163 is screwed is disposed in the housing 164 so as to be rotatable in the B direction. The housing 164 is rotated so that the housing 164 does not move laterally (horizontal direction). The transmission shaft 55 penetrates in a relatively rotatable manner. The bracket 59 is attached in the vicinity of the lower edge of the back surface of the panel 11. Therefore, in this example, the screw shaft 163 is connected to the vicinity of the lower edge of the panel 11. In the figure, only one set of nut 57, screw shaft 163, housing 164, etc. is provided, but another set of these is provided, and one set of screw shaft 163 is placed on the panel 11 on the right side and the other set. These screw shafts 163 may be connected to the panel 11 on the left side.

  The actuating means 7 includes a compensating means 61 that compensates for the difference between the actuating amount for the lifting means 5 and the prohibiting and the actuating amount for the releasing means 6, and an operation that generates the actuating force by at least one of automatic and manual, both in this example. The power generation means 62 and the transmission means 63 for transmitting the operation force generated by the operation force generation means 62 to the compensation means 61 are provided.

  The operating force generator 62 includes an automatic operating force generator 65 and a manual operating power generator 66. The automatic operating force generator 65 includes a reversible electric motor 67 attached to the vertical frame body 16, and An operation box 68 for controlling the operation of the electric motor 67 is provided, and the manual operation power generation means 66 is provided with a manual rotation handle 69 disposed on the operation box 68. The transmission means 63 includes an input switching mechanism 71 attached to the vertical frame body 16, a rotation transmission shaft 73 having one end connected to the input switching mechanism 71 and the other end connected to the output rotation shaft 72 of the electric motor 67, One end of the rotation transmission shaft 74 connected to the input switching mechanism 71, a bevel gear mechanism 75 to which the other end of the rotation transmission shaft 74 is connected, one end to the bevel gear mechanism 75, and the other end to the operation box 68. A rotation transmission shaft 77 connected to the rotation shaft 76 of the manual rotation handle 69 via a bevel gear mechanism or a worm gear mechanism (not shown) provided therein, and the input switching mechanism 71 includes: When the electric motor 67 is operated, the rotation of the output rotation shaft 72 of the electric motor 67 is transmitted to the output rotation shaft 78, and the manual rotation shaft is provided. When the dollar 69 is operated, the rotation of the rotation transmission shaft 74 via the rotation shaft 76, the bevel gear mechanism or worm gear mechanism, the rotation transmission shaft 77, and the bevel gear mechanism 75 is transmitted to the output rotation shaft 78. For example, it is composed of an electromagnetic clutch or the like. The bevel gear mechanism 75 is configured to transmit the rotation of the rotation transmission shaft 77 arranged vertically to the rotation transmission shaft 74 arranged horizontally. As described above, the output rotation shaft 72 of the electric motor 67 and the rotation shaft 76 of the manual rotation handle 69 are respectively connected to the compensation means 61 via the transmission means 63.

  The compensating means 61 includes a differential gear mechanism 81, the input shaft 82 of the differential gear mechanism 81 is connected to the output rotation shaft 78 of the operating means 7, and one output shaft 83 of the differential gear mechanism 81 is The input shaft 43 of the interlocking bevel gear mechanism 40 and the other output shaft 84 of the differential gear mechanism 81 are connected to the rotation transmission shaft 57 of the prohibiting / releasing means 6, respectively. The differential gear mechanism 81 attached to the vertical frame body 16 is rotatably attached to the input shaft 82 that is rotatably attached to the gear case 91, the gear 92 that is fixed to the input shaft 82, and the gear case 91. The output shaft 84, the disk 93 fixed to the output shaft 84, the pair of planetary gears 94 and 95 meshed with the gear 92, and the pair of planetary gears 94 and 95 that are rotatably attached to the disk 92. The cylindrical body 96, the gear 97 fixed to the cylindrical body 96, the internal gear 98 fixed to the cylindrical body 96 and meshed with the pair of planetary gears 94 and 95, and the gear case 91 are rotatable. An attached output shaft 83 and a gear 100 fixed to the output shaft 83 and meshed with the gear 97 are provided. When the rotation of the output shaft 83 becomes difficult, the differential gear mechanism 81 rotates the input shaft 82 to the output shaft 84. When the output shaft 84 becomes difficult to rotate, the differential gear mechanism 81 rotates the input shaft 82 to the output shaft 83. It transmits with the transmission ratio (gear ratio).

  The balance force generation means 8 includes a weight 110 and a transmission means 111 that transmits a lowering force of the weight 110 as an upward force on the lower end side of the lower door plate means 4. The weight 110 is guided by the guide means 112 to move up and down, and the guide means 112 moves up and down on the rail 113 attached to the vertical frame 16 of the folding door 1 and on the rail 113. The slider 114 is freely fitted, and the weight 110 is attached to the slider 114 with a screw or the like. The transmission means 111 includes a chain 121 having one end connected to the lower end side of the lower door plate means 4, in this example, the movable block 33, and the other end connected to the weight 110, and a pair of sprocket wheels 122 on which the chain 121 is hung. Each of the sprocket wheels 122 is rotatably attached to the vertical frame body 16 of the folding door 1. The balance force generating means 8 of this example includes a pair of weights 110 and the like provided on the left and right vertical frame bodies 16, but instead of this, only one vertical frame body 16 has a weight. 110 may be provided.

  In the folding door 1 formed as described above, when the electric motor 67 is operated by pressing the operation button of the operation box 68, the rotation of the output rotation shaft 72 of the electric motor 67 is rotated by the rotation transmission shaft 73 and the input switching mechanism 71. The rotation of the input shaft 82 is transmitted to the output shafts 83 and 84 via the gear 92 and the like, and the rotation of the output shaft 83 is transmitted to the input shaft 82 via the output rotation shaft 78. 43, the interlocking bevel gear mechanism 40 is transmitted to the output shafts 44 and 45. The rotation of the output shaft 44 is transmitted to the screw shaft 31 via the rotation transmission shaft 34, and the rotation of the output shaft 45 is transmitted to the rotation transmission shaft 42 and the other. Is transmitted to the other screw shaft 31 via the rotation transmission shaft 34. Due to the rotation of the screw shaft 31, the nut member 32 screwed with the screw shaft 31 tends to rise. At the same time, the rotation of the output shaft 84 is transmitted to the output shaft 52 via the rotation transmission shaft 57, the input shaft 51 and the gear means 53, and the rotation transmission shaft 55 connected thereto is also rotated by the rotation of the output shaft 52, The rotation of the rotation transmission shaft 55 rotates the nut 57 via the worm teeth 54 and the teeth 56 meshed with the worm teeth 54, and the screw shaft 163 screwed into the nut 57 by the rotation of the nut 57 pushes out the panel 11. It moves directly with respect to the nut 57 so as to rotate. By the linear movement by the screw shaft 163 and the rise of the nut member 32, the tension state of the upper and lower door plate means 3 and 4 is released, the lower end side of the lower door plate means 4 is lifted, and the upper and lower door plate means 3 are lifted. And 4 are folded together. When the upper and lower door plate means 3 and 4 are completely folded and the folding door 1 is opened as shown in FIG. 2, the operation of the electric motor 67 is stopped by a detector (not shown) that detects this. The Note that the operation of the operation box 68 may be operated to stop the lifting of the nut member 32 in the middle of folding. When the electric motor 67 is operated in reverse, the screw shaft 163 moves in the reverse direction as described above, and the nut member 32 is lowered, and the folding of the upper and lower door plate means 3 and 4 is released. Door plate means 3 and 4 are arranged in series in a vertical state, and the folding door 1 is closed as shown in FIG.

  By the way, in the folding door 1, the pushing-out rotation of the panel 11 by the screw shaft 163 is not enough to be delayed, and if the nut member 32 is lifted while the upper and lower door plate means 3 and 4 are stretched together, the nut member 32 As a result of requiring a considerable lifting force for this rise, rotation of one output shaft 83 of the differential gear mechanism 81 is prevented, while rotation of the other output shaft 84 of the differential gear mechanism 81 is promoted, As a result, the pushing and turning of the panel 11 by the screw shaft 163 is promoted, and therefore the upper and lower door plate means 3 and 4 are released from each other's tension state, and by this cancellation, the nut member 32 is raised as desired. Lower door panel means 3 and 4 are folded in sequence. Even during rotation of the panel 11, the nut member 32 rises due to the rotation of the screw shaft 31 and the pushing rotation of the panel 11 due to the direct movement of the screw shaft 163 is coordinated by the action of the differential gear mechanism 81. . The same applies to the case where the manual rotation handle 69 is operated to open and close the folding door 1.

  When the folding door 1 is opened and closed, the lower side of the lower door plate means 4 is raised and lowered. As a result, the weight 110 is also lowered and raised, and the weight 110 prevents unintentional lowering due to the weight of the lower door plate means 4 and the like. In addition, it is possible to smoothly raise and lower the lower door plate means 4 without requiring much force.

  The complete closing of the folding door 1 is substantially maintained by screwing the nut member 32 and the screw shaft 31, but in the folding door 1, one end of the screw shaft 163 is below the back surface of the panel 11 via the bracket 59. Since the screw shaft 163 is screwed to the nut 57 and the nut 57 is screwed to the rotation transmission shaft 55, the screw shaft 163 is linearly moved with respect to the nut 57 unless the rotation transmission shaft 55 rotates. Therefore, even if a large turning moment is generated in the panel 11 in a strong wind, the panel 11 is firmly held by the screw shaft 163 so that no slight turning is caused, and the panel 11 is rattled by the strong wind. In addition, unpleasant noise is not generated, and unintended opening can be prevented. The same applies to the panel 21 connected to the panel 11 via the hinge means 2. In addition, the screw shaft 163 firmly holds the panels 11 and 21 even in an open state including a halfway open. In this way, the prohibiting / releasing means 6 prohibits the free rotation of the panels 11 and 21 and cancels the state in which the panels 11 and 21 are stretched when the panels 11 and 21 are folded.

1 is a perspective view of a closed state of a preferred embodiment of the present invention. It is a perspective view of the open state of the Example shown in FIG. FIG. 2 is a partial detail view of the embodiment shown in FIG. 1. FIG. 2 is a partial detail view of the embodiment shown in FIG. 1. FIG. 2 is a partial detail view of the embodiment shown in FIG. 1. FIG. 2 is a partial detail view of the embodiment shown in FIG. 1. FIG. 2 is a partial detail view of the embodiment shown in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding door 3 Upper door panel means 4 Lower door panel means 5 Lifting means 6 Prohibition, release means 7 Actuating means

Claims (1)

  The upper and lower door plate means connected to each other in the vertical direction through the hinge means and the lower door plate means are connected to the lower door side of the lower door plate means so as to fold the upper and lower door plate means together. The lifting means, and the upper and lower door plate means are prohibited from freely rotating, and the upper and lower door panel means are released from each other when the upper and lower door panel means are folded by the lifting means. A lifting means and an operating means for activating the prohibiting / releasing means. The lifting means includes a screw shaft extending in the longitudinal direction and rotatably arranged, and a nut member screwed into the screw shaft. A folding door comprising a nut member and a lower edge side of the lower door plate means rotatably connected to the nut member.

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