JP5586966B2 - Driving device, opening / closing device, and opening device including the opening / closing device - Google Patents

Description

  The present invention relates to an opening / closing device for opening / closing a shoji, an opening device provided with the opening / closing device, and a driving device provided in the opening / closing device.

  There are a wide variety of opening devices such as sash windows provided in the opening of a building. Among them, there is an opening device in which a shoji screen opens and closes (hereinafter simply referred to as “opening device”). May be described.) Such an opening device is provided with a mechanism for slidingly opening and closing the shoji, and there are several types depending on the form of the arm to be combined. ing. That is, one end side of the shoji is projected and opened to the outdoor side, and the other end side opposite to the shoji is rotating, and the rotation axis further moves along the frame. Therefore, not only the one end side which protrudes the shoji is opened, but also the other end side which is rotated can be opened. Thereby, the efficiency of ventilation can be improved, and the outdoor side surface of the shoji can be easily cleaned.

Usually, such an opening device is provided with an opening / closing device for an operator to operate to push and pull one end side of the shoji in addition to a mechanism for slidingly opening and closing the shoji as described above. Yes. Patent Document 1 discloses a conventional opening / closing device (window opening / closing device). In the opening / closing device described in Patent Document 1, the worm wheel rotates by rotating the operation handle (gripping part), and the shoji can finally be opened / closed by the rotation of the rotating arm provided therein.
Further, in Patent Document 1, a locking member (20) is provided, whereby the shoji is opened halfway (open at a predetermined position between fully open and fully closed; the same applies hereinafter) or in a fully open position. It is possible to hold.

JP-A-11-223067

  In recent years, the need for crime prevention in buildings has increased more than ever, and the opening device is also required to have high crime prevention properties. Similarly, an opening device having a shoji that swings and opens and closes, such as Patent Document 1, is preferably provided with further crime prevention means.

  On the other hand, in parallel with crime prevention, with the diversification of preferences for building design, the demand for an opening device having a simpler appearance has increased. Therefore, it is preferable that the appearance is not affected as much as possible when the crime prevention means is provided.

  From this point of view, in the conventional opening and closing device as shown in Patent Document 1, when this is installed in the opening device, it is arranged so as to largely protrude from the indoor-side finding surface of the window frame or the prospective surface of the window frame. Therefore, the appearance of the switchgear itself is also greatly affected.

  Therefore, the present invention can improve crime prevention performance by providing an opening / closing device capable of improving the crime prevention property and having a simpler appearance, a driving device provided in the opening / closing device, and the opening / closing device. It is an object of the present invention to provide an opening device having a simple appearance.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

The invention according to claim 1 is arranged in any one of the frame members constituting the frame body (11) arranged along the building opening, and in the frame defined by the frame body. An opening / closing device (30) that pushes out and pulls one end of the shoji (20) provided, an operating member (70) provided for an operator's operation, and a drive device that operates by operating the operating member ( 31) and at least one arm (75) for connecting the driving device and the shoji, and the driving device is provided with an opening / closing limiting means (60) which is a means for limiting the operation of the arm. , closing limiting means at the option of the operator, shoji provide a switchgear Rukoto to limit the operation range of the arm is possible to at least three postures including cases where the fully closed position.

According to a second aspect of the present invention, in the opening / closing device (30) according to the first aspect, the drive device (31) is rotated by the operating member (70), and the gear tooth surface shape is formed on the outer peripheral surface thereof. A gear tooth surface shape that has a first gear (36) that is formed and a rotation shaft that is not parallel to the rotation shaft of the first gear and meshes with the first gear is formed on the outer peripheral surface, A second gear (43) having an internal thread formed on the inner peripheral surface, and a posture arranged on the frame member with the finding direction as the longitudinal direction, the first gear being linearly movable in the finding direction. A rod-like screw (50) that is screwed with the female screw of the second gear, and a connecting means (55) that moves following the rod-like screw and is connected to one end of the arm (75). ) Prohibits / permits linear movement of the rod-like screw, thereby operating the drive device (31). Characterized in that it limited.

  Invention of Claim 3 is a frame (11) arrange | positioned along a building opening part, the shoji (20) arrange | positioned in the frame divided by the frame, and the frame material which comprises a frame The opening / closing device (30) according to claim 1 or 2, wherein the operation of the driving device of the opening / closing device is limited, whereby the shoji fully closed posture, the fully open posture, In addition, the opening device is configured such that the opening degree of the shoji can be selected and restricted to a half-opened position between the fully-closed position and the fully-opened position.

  The invention according to claim 4 is provided in the opening / closing device (30) provided in the opening device (10) and moves and / or rotates the arm (75) for opening and closing the shoji (20) of the opening device. A drive device (31) to be moved, the first gear (36) provided rotatably and having a gear tooth surface shape formed on the outer peripheral surface thereof, and not parallel to the rotation shaft of the first gear A second gear (43) having a rotating shaft and a gear tooth surface shape meshing with the first gear on the outer peripheral surface and a female screw formed on the inner peripheral surface, and a second gear And a bar-shaped screw (50) that engages with the female screw, and an opening / closing limiting means (60) that prohibits / allows linear movement of the bar-shaped screw by entering and leaving the track of the bar-shaped screw movement.

  According to the present invention, the opening / closing limiting means for selecting the opening degree of the shoji can include the shoji that is held in a fully closed posture and prohibited from being opened. Therefore, in this posture, it is the same as when locked, and it is possible to improve crime prevention. Moreover, since this is performed without adding a new member for locking, it has a simple structure and can improve the crime prevention property without affecting the appearance.

It is the room view perspective view which paid its attention to the lower half with which this opening / closing apparatus was equipped among opening part apparatuses provided with the opening / closing apparatus concerning 1st embodiment. FIG. 2 is a vertical sectional view of the opening device of FIG. 1. FIG. 2 is a horizontal sectional view of the opening device of FIG. 1. It is sectional drawing of a lower horizontal frame. It is a figure explaining the attitude | position of opening of an opening / closing apparatus. It is a figure explaining the attitude | position of closing of an opening / closing apparatus. It is a disassembled perspective view of the drive device among opening and closing devices. It is the figure which expanded and showed a part of moving part among drive devices. It is the perspective view which expanded and showed the connecting pin. It is the figure which showed the to-be-latched member of the opening / closing restriction | limiting means. It is a perspective view explaining the combination of the member of the transmission part of a drive device. It is a figure explaining a screw gear. It is a perspective view explaining the combination of the member of the moving part of a drive device. It is another perspective view explaining the combination of the member of the moving part of a drive device. It is a figure explaining an opening / closing restricting means. It is a figure explaining operation | movement of a drive device. It is a figure explaining the attitude | position of the opening-and-closing restriction | limiting means which can open a shoji fully. It is a figure explaining the attitude | position of the opening-and-closing restriction | limiting means which enables half-opening of a shoji. It is the figure which expanded the edge part of the 1st arm. It is a figure explaining attachment of the 1st arm. It is a figure explaining an opening / closing restriction | limiting means among the opening / closing apparatuses concerning 2nd embodiment. In the opening / closing apparatus concerning 2nd embodiment, it is a figure explaining the attitude | position of the opening / closing restriction | limiting means in which a shoji can be opened fully. In the opening / closing apparatus concerning 2nd embodiment, it is a figure explaining the attitude | position of the opening / closing restriction | limiting means in which a shoji can be opened halfway. It is a figure explaining an opening / closing restriction | limiting means among the opening / closing apparatuses concerning 3rd embodiment. In the opening / closing apparatus concerning 3rd embodiment, it is a figure explaining the attitude | position of the opening / closing restriction | limiting means in which a shoji can be fully opened. In the opening / closing apparatus concerning 3rd embodiment, it is a figure explaining the attitude | position of the opening / closing restriction | limiting means in which a shoji can be opened halfway.

  The above-described operation and gain of the present invention will be clarified from embodiments for carrying out the invention described below. Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to these embodiments.

  FIG. 1 is a room-view perspective view of a sliding-type opening device 10 (hereinafter sometimes referred to as “opening device 10”) including an opening / closing device 30 according to the first embodiment, and a lower half thereof. It is the figure shown paying attention to. FIG. 2 is a vertical sectional view of the opening device 10, and FIG. 3 is a horizontal sectional view. In FIG. 2, the left side of the drawing is the outdoor side, and the right side of the drawing is the indoor side. On the other hand, in FIG. 3, the upper side of the paper is the outdoor side, and the lower side of the paper is the indoor side. Hereinafter, the opening device 10 including the opening / closing device 30 will be described with reference to FIGS.

  The opening device 10 includes a frame 11, a shoji 20 provided in the frame 11, a sliding mechanism that connects the frame 11 and the shoji 20, and allows the shoji 20 to be opened and closed in a sliding manner, and An opening / closing device 30 that opens and closes the shoji 20 by pushing and pulling one end side of the shoji 20 is provided.

  The frame body 11 is a long member having a predetermined cross section, and is a frame-like member formed by framing an upper horizontal frame 12, a lower horizontal frame 13, and a pair of vertical frames 14 and 15. When the frame 11 is attached to the building along the edge of the building opening, the opening device 10 is fixed to the building. In FIG. 2, the lower horizontal frame 13 is hatched for easy understanding. FIG. 4 shows an extracted cross-sectional view of the lower horizontal frame 13. FIG. 4A shows the same section as that shown in FIG. 3, and is a part to which a driving device 31 of the opening / closing device 30 described later is attached. On the other hand, FIG. 4B shows a part where the driving device 31 is not attached.

As can be seen from FIG. 4A, the lower horizontal frame 13 is provided with a U-shaped drive device insertion portion 13a having an opening above the portion where the drive device 31 is disposed. Further, a rectangular portion 13b surrounded by a piece and formed into a substantially hollow rectangle is provided below the driving device insertion portion 13a. Here, the piece that forms the bottom of the drive unit insertion portion 13a and the piece that forms the ceiling of the rectangular portion 13b are common. However, as can be seen from FIG. 4A, openings 13e and 13f are provided in a portion where the driving device 31 is provided so that a part of the driving device 31 and a part of the connecting arm group 75 can pass therethrough. Yes.
Furthermore, a piece 13c extending outward from the lower outdoor corner of the rectangular portion 13b is provided, and a rectangular portion 13d is formed at the distal end of the outdoor portion.

  On the other hand, in the cross-sectional portion shown in FIG. 4B, that is, the portion where the driving device 31 is not disposed, the U-shaped opening of the driving device insertion portion 13a is closed by a piece to form a rectangular portion 13g.

  Returning to FIGS. 1 to 3, the description of the opening device 10 will be continued. The shoji 20 has a structure in which an upper casket 21, a lower casket 22, and vertical caskets 23 and 24 are rectangularly framed, and a multilayer glass panel 25 is mounted in the compartment. In this embodiment, the glass panel 25 is a multilayer glass panel. However, it is not limited to this, A single layer glass panel may be sufficient. In this embodiment, it was set as the multilayer glass panel as a preferable example from a viewpoint of improving heat insulation.

Moreover, in the shoji 20, the edge part of the glass panel 25 is inserted in the upper collar 21, the lower collar 22, the vertical fence 23, and the vertical fence 24, and is directly adhere | attached with the adhesive agent. In other words, it is not a configuration in which the glass panel is attached to the basket through a conventional glazing channel. With such a configuration of the shoji 20, it is possible to reduce the size of the eyelid in the direction of finding and the prospective direction. That is, since the glass panel surface can be taken large, the lighting area can be increased. Furthermore, with the posture in which the shoji 20 is closed, the entire bag can be concealed from the frame body in the room view, and an opening device with a simple appearance can be obtained.
However, this does not preclude the use of a glass panel and ridge mounting structure using a glazing channel, and such a conventional structure may be used. In the present embodiment, as described above, the size of the cocoon finding direction and the expected direction can be reduced, and an opening device with a simpler appearance can be provided in combination with the opening / closing device 30 described later. From the point of view, the shoji 20 has been described as a preferred example.

  The frame 11 and the shoji 20 described above are connected by a sliding mechanism (not shown). A mechanism used for a normal sliding window can be applied to the sliding mechanism. For example, in the lateral sliding opening device, a slide bar disposed along the longitudinal direction of the vertical frame on the inner surface side of the vertical frame and slidable in the vertical direction, and a first stay that is two bars. And a second stay. Here, one end of the first stay is rotatably attached to the upper end of the slide bar, and the other end is rotatably attached to the end face of the shoji. On the other hand, the second stay is a bar longer than the first stay, and is disposed below the first stay. One end of the second stay is pivotally attached to the vertical frame, and the other end pivots on the end face of the shoji. Installed as possible.

  Next, the opening / closing device 30 will be described. FIG. 5 shows a view of the opening / closing device 30 as viewed from above with the shoji 20 opened. In FIG. 6, the figure which looked at the opening / closing apparatus 30 from upper direction in the attitude | position of the closing of the shoji 20 was shown. In both FIG. 5 and FIG. 6, the upper side of the paper is the outdoor side and the lower side of the paper is the indoor side. Further, for ease of viewing, the shoji 20 (glass panel 25) is shown by broken lines in FIG. 5, and these are omitted in FIG.

  The opening / closing device 30 includes a drive device 31, an operation member 70, and a connecting arm group 75.

  The drive device 31 is a device that transmits the operation of the operation member 70 by the operator to the connection arm group 75, and is a device that changes the direction of the force so that the connection arm group 75 operates appropriately when the transmission is performed. is there. FIG. 7 shows an exploded perspective view of the driving device 31. The drive device 31 includes a transmission unit 32, a moving unit 45, a connecting pin 55, and an opening / closing limiting unit 60. Hereinafter, each part will be described.

The transmission unit 32 includes a case 33, a first helical gear 36, a lid 37, a transmission shaft 38, a holding member 41, and a second helical gear 43.
The case 33 is a box-shaped member that covers most of the constituent members of the drive device 31 and forms an outer shell. Then, the upper surface of the case 33 is exposed in the appearance of the opening device 10. The case 33 includes a box 34 that has a substantially box shape that opens downward, and an operation member connecting portion 35 that is a hollow portion protruding from the upper surface of the box 34. The operation member connecting portion 35 has a hollow inside, is open on one side, and communicates with the inside hollow portion of the box 34. In addition, a hole 34 a is formed at one end of the upper surface of the box body 34 through the upper surface and the inner hollow portion of the box body 34. As will be described later, the opening / closing limiting means 60 is attached to the hole 34a.

The first helical gear 36 is a first gear that forms a so-called screw gear in relation to a second helical gear 43 described later. The first helical gear 36 is provided with a hole 36a along the rotation axis of the gear.
The lid 37 is a substantially disk-shaped member that closes the opened portion of the operation member coupling portion 35 described above, and a through hole 37a is provided at the center thereof.

  The transmission shaft 38 is a shaft-like member that transmits the driving force from the operation member 70 to the first helical gear 36. The transmission shaft 38 has a coaxial shaft portion 39 and an engagement portion 40 that are continuously formed in the axial direction. It has. The engaging portion 40 is formed in a shape that can engage with the operation member 70.

  The holding member 41 includes a pair of holding plates 42 and 42 which are a pair of flat members arranged in parallel so as to face each other at a predetermined interval. As will be described later, a second helical gear 43 is rotatably fixed between the holding plates 42 and 42. Accordingly, the holding plates 42 and 42 are provided with holes 42a and 42a into which the rotation shaft 43a of the second helical gear 43 is inserted.

  The second helical gear 43 is a second gear that forms a so-called screw gear in relation to the first helical gear 36 described above. The second helical gear 43 is provided with a rotation shaft 43a along the rotation axis. Further, the rotating shaft 43a is provided with a female screw hole 43b along the axis, and a female screw groove is formed on the inner peripheral surface of the female screw hole 43b.

  Here, the first helical gear 36 and the second helical gear 43 may form a so-called “screw gear”. The screw gear is a gear combined with a plurality of pairs of cylinders or column gears such that the axial directions thereof are not parallel. This can include, for example, a combination of two helical gears or a combination of one helical gear and one spur gear. Therefore, in the present embodiment, an example in which all are helical gears has been described, but either one may be a spur gear.

  Next, the moving unit 45 in the drive device 31 will be described. The moving part 45 includes rail members 46, 46, a rod-like screw 50, a moving plate 51, and sliding members 53, 53,.

The rail member 46 is a long plate-like member, and is a member formed by bending both end portions in the longitudinal direction so as to be substantially orthogonal to the plate surface. Although the bent shape at both ends is different between one and the other, the two rail members 46, 46 are combined with the different shape sides and fixed alternately to form a rectangular frame as a whole. The
In addition, the rail member 46 is provided with rails 47 and 47 as guide means that protrude along the longitudinal direction so as to protrude toward the inside of the rectangular frame shape.

The rails 47 of this embodiment are formed by pressing a portion of the rail member 46 by pressing the rail member 46. By forming the rails 47 and 47 in this way, there is an advantage that a new part and a member for attaching the new part are not required. Moreover, a rail acts as a rib and can also raise the intensity | strength of rail members 46 and 46 itself. Furthermore, since the rail surface obtained by such press work is smooth and excellent in slidability, a suitable sliding surface as a rail is provided.
However, when the rail is formed, the use of another member is not prevented, and the rail may be formed by attaching another member here.

  The rod-like screw 50 is a rod-like member in which a male screw is formed on the outer peripheral surface of a round bar having a constant diameter. The diameter and the male screw can be screwed into the female screw hole 43b of the second helical gear 43 described above.

  The shape of the male screw is not particularly limited, but a trapezoidal screw or a square screw suitable as a screw shape for moving an object linearly is preferable. Further, the number of so-called stripes is not limited, and can be set as appropriate depending on the degree of movement of the operation member with respect to the rotation.

  The moving plate 51 is a long plate-like member that is formed by bending both ends in the longitudinal direction so as to be substantially orthogonal to the plate surface. The moving plate 51 is provided with a hole 51a penetrating in the thickness direction. Further, the bent portions at both ends are arranged so that their surfaces face each other, and function as holding portions 52 and 52 that hold both ends of the rod-like screw 50. FIG. 8 is an enlarged view of one holding portion 52 and a sliding member 53 described later in FIG. As can be seen from FIG. 8, the holding portion 52 is formed with recesses 52 a and 52 a as guided means on both sides in the width direction of the moving plate 51. Further, the upper end of the holding portion 52 is provided with a locking projection 52b. The locking projection 52b is locked to the opening / closing limiting means 60, whereby the opening / closing of the shoji 20 is limited. Specifically, it will be described in detail later.

  The sliding member 53 functions as guided means, and as can be seen from FIG. 8, two sliding plates 53a and 53a, which are substantially U-shaped plates, are arranged in parallel at a predetermined interval and are U-shaped. The connecting plate 53b is arranged and integrated so as to pass the inside. Thereby, the recessed part 53c enclosed by the sliding plates 53a and 53a and the connection board 53b is formed in the one side of the connection board 53b. In this embodiment, four 53 of such sliding members are provided.

  The material of the sliding member 53 is not particularly limited, but the sliding member 53 as the guided means slides along the rail 47 as the guiding means of the rail member 46, as will be described later. It is preferably formed of a resin having high mobility.

  Next, the connection pin 55 of the drive device 31 will be described. FIG. 9 shows a perspective view of the connecting pin 55. The connection pin 55 is a member that functions as a connection means with a connection arm group 75 to be described later, and has a cylindrical shape as a whole. More specifically, a connecting portion 56 that is a cylinder, and a fitting portion 57 that is a coaxial, small-diameter cylinder continuously disposed from the connecting portion 56 are provided. In addition, the connecting portion 56 is provided with two protrusions 58 and 58 in a diametrical direction from a part of the outer peripheral surface of the connecting portion 56 (only one protrusion 58 appears in FIG. 9). FIG. 20).

  Next, the opening / closing restriction means 60 will be described. As can be seen from FIG. 7, the opening / closing limiting means 60 includes a knob 61, a locked member 62, and a shaft 68. FIG. 10 shows a perspective view (FIG. 10A) of the locked member 62 in the opening / closing limiting means 60. 10B is a view (corresponding to a bottom view) seen from the direction (downward) indicated by the arrow Xb in FIG. 10A, and FIG. 10C is the arrow Xc in FIG. 10A. It is the figure seen from the direction (side surface) shown (equivalent to a side view). The opening / closing limiting means 60 will be described with reference to FIGS.

  The knob 61 is a cylindrical member, and is a member that an operator pinches and operates (rotates).

The locked member 62 includes a cylindrical portion 63 and a locked portion 64 that are coaxially formed continuously in the axial direction.
The cylindrical portion 63 is a cylindrical member, and a hole 63a is provided along the axis. The shaft 68 is passed through the hole 63a.
The locked portion 64 is a columnar member having a diameter D that is coaxial with the columnar portion 63 and provided at the lower end of the columnar portion 63, and further has the following characteristics. That is, as can be seen from FIG. 10, the locked portion 64 is provided with a groove 64a having a width W, a depth D _p , and a length L _{1 on} the lower surface side along the diameter direction from the outer peripheral surface. Yes. Further, the outer peripheral portion of the opposite side of the cylindrical shaft is provided with a cutout portion 64b the magnitude of L ₂ is cut with respect to the diameter D to the outer peripheral portion of the groove 64a is provided . The size, such as the width and depth, of the above-described portions of the locked portion 64 may be any as long as the relationship with other portions for restricting the movement and rotation of the shoji 20 described later is established.

  The shaft 68 is a shaft member that connects the knob 61 and the locked member 62 coaxially.

The constituent members of the drive device 31 as described above are combined as follows to form the drive device 31. An explanatory view is shown in FIGS.
As can be seen from FIGS. 7 and 11, the first helical gear 36 is arranged inside the cylindrical shape of the operation member connecting portion 35 of the case 33 of the transmission portion 32, and the opening of the operation member connecting portion 35 is a lid. 37 is closed. Here, the shaft portion 39 of the transmission shaft 38 passes through the hole 37 a of the lid 37 and is fixed to the hole 36 a of the first helical gear 36. Thereby, the first helical gear 36 can be rotated by the rotation of the transmission shaft 38. On the other hand, the engaging portion 40 of the transmission shaft is disposed so as to protrude outside the lid 37.

  As can be seen from FIGS. 7 and 12, the second helical gear 43 of the transmission portion 32 is rotatably attached so as to be sandwiched between the holding plates 42 and 42 of the holding member 41. The second helical gear 43 and the holding member 41 combined in this way are arranged inside the box 34 of the case 33. At this time, as shown in FIG. 12, the first helical gear 36 and the second helical gear 43 are combined so as to form a screw gear. Accordingly, the second helical gear 43 is rotated by the rotation of the first helical gear 36.

  By combining the screw gears in this manner, the angle of the first helical gear 36 with respect to the horizontal direction of the rotation shaft can be freely changed within a predetermined range. Details are as follows. Since the first helical gear 36 and the second helical gear 43 can transmit force appropriately if their outer peripheral surfaces are in contact with each other, the angle of the rotation axis of the first helical gear 36, that is, the final Specifically, the degree of freedom in designing the mounting angle of the operation member 60 can be increased. In this case, no other member is required, and it is only necessary to change the meshing position between the first helical gear and the second helical gear.

  As shown in FIGS. 7 and 13, the moving part 45 is attached with a rod-like screw 50 so as to pass between the holding parts 52, 52 of the moving plate 51. At this time, as can be seen from FIG. 13, the rod-shaped screw 50 is passed through the female screw hole 43b of the second helical gear 43 described above, and the rod-shaped screw 50 and the second helical gear 43 are screwed together. Therefore, the second helical gear 43 can be rotated to move the rod-like screw 50 linearly in the axial direction. The moving plate 51 holding the rod-like screw 50 can also move following this movement.

  Further, as can be seen from FIGS. 8 and 13, the four sliding members 53, 53,... Are fixed to a recess 52 a provided in the holding portion 52 of the moving plate 51. The sliding member 53 is attached to the holding portion 52 by inserting the concave portion 53c (see FIG. 8) of the sliding member 53 into the holding portion 52. Therefore, the U-shaped opening of the sliding plates 53 a and 53 a of the sliding member 53 is fixed so as to face the side opposite to the holding portion 52. Thereby, the rail 47 of the rail member 46 can be arrange | positioned inside the said U-shape so that it may mention later.

  As can be seen from FIG. 13, the moving plate 51 is disposed so as to cover the lower surface side of the rod-shaped screw 50, the first helical gear 36, and the second helical gear 43. Thereby, the main mechanisms of the drive device 31 can be protected from dust and the like.

  As can be seen from FIG. 7 and FIG. 14, the rail members 46, 46 of the moving part 45 are formed in a rectangular frame shape as a whole by alternately fixing the bent end portions in the longitudinal direction. At this time, the protruding surfaces of the rails 47, 47,... Are arranged so as to protrude and face the inside of the frame. The inside of the rectangular frame includes a holding member 41, a second helical gear 43, a moving plate 51, and a sliding member 53. At that time, the holding member 41 is fixed to the inner surfaces of the rail members 46, 46, whereby the positions of the holding member 41 and the second helical gear 43 are fixed. Further, the sliding members 53, 53,... Are fitted into the rails 47, 47,... Of the rail member 46 to guide the movement of the moving plate 51 and the rod-shaped screw 50.

  Here, the rails 47, 47,... Are fitted into the sliding members 53, 53,... As described above, but as shown in FIG. It is preferable that the concave portions 52a, 52a,... Include the top portions that are convex of the rails 47, 47,. Thus, even if the sliding members 53, 53,... Disappear due to fire or the like, the rails 47, 47,... Are included in the recesses 52a, 52a,. .

  As can be seen from FIG. 13, the connecting pin 55 has a fitting portion 57 (see FIG. 9) fitted into the hole 51 a (see FIG. 7) of the moving plate 51. In that case, the connection part 56 of the connection pin 55 is arrange | positioned so that it may protrude on the opposite side to the side by which the rod-shaped screw 50 is arrange | positioned.

  The opening / closing restriction means 60 is arranged as follows. The figure demonstrated in FIG. 15 was shown. FIG. 15 is a view of the assembled drive device 31 as seen from the front (front side of the room in a posture attached to the opening device). For ease of viewing, some members are seen through, and some members are Omitted. FIG. 15A is an overall view of the driving device 31. 15B is a view of the portion indicated by XVc in FIG. 15A as viewed from the direction (upper surface) indicated by XVb, and FIG. 15C is an enlarged view of the portion XVc.

  As can be seen from FIGS. 7 and 15, the opening / closing limiting means 60 includes a knob 61 above the upper surface of the box 34 and a locked member 62 inside the box 34 with the hole 34 a of the box 34 interposed therebetween. Arranged and connected by a shaft 68. Therefore, as shown by A in FIG. 15B, the opening / closing limiting means 60 can rotate the latched member 62 by following the rotation of the knob 61.

  At this time, as shown in FIG. 15A and FIG. 15C, the moving plate 51 has a locked member 62 between the pair of holding portions 52, 52 provided on the moving plate 51. Is positioned.

  According to the drive device 31 combined as described above, the connecting pin 55 can be moved linearly as follows. FIG. 16 shows a diagram for explanation. When the engaging portion 40 of the transmission shaft 38 is rotated from the posture shown in FIG. 16A, the first helical gear 36 is rotated and the second helical gear 43 is rotated. As a result, the rod-like screw 50 screwed into the second helical gear 43 moves. Since the second helical gear 43 is fixed to the rail members 46 and 46 and cannot move, the rod-shaped screw 50 moves linearly. Therefore, the connecting pin 55 attached to the rod-like screw 50 via the moving plate 51 moves linearly as shown in FIG.

  The movement of the connecting pin 55 is restricted by the opening / closing restriction means 60 as follows. The description will be made with reference to FIG. 15 shown earlier and FIGS. 17 and 18 newly shown. FIGS. 17A and 17B are views corresponding to FIGS. 15B and 15C in a posture in which the movement restricting means 60 is rotated.

  First, as shown in FIG. 15, the direction in which the moving plate 51 moves through the portion having the diameter D (see FIG. 10) of the locked portion 64 provided in the locked member 62 of the opening / closing limiting means 60. To match. At this time, as can be seen from FIG. 15C, the locking protrusion 52 b (see also FIG. 8) of the moving plate 51 is caught on the outer peripheral surface of the locked portion 64 of the opening / closing limiting means 60. As a result, the moving plate 51 can no longer move to the right in FIG. 15, and its movement is prohibited.

Secondly, as shown in FIG. 17, the knob 61 of the opening / closing limiting means 60 is rotated, and the groove 64 a of the locked portion 64 provided in the locked member 62 of the opening / closing limiting means 60 is moved to the moving plate 51. Are arranged so as to face the holding part 52 side (the holding part 52 that does not include the second helical gear 43 between the two holding parts 52, 52). At this time, as can be seen from FIG. 17 (b), the locking projection 52b (see also FIG. 8) of the moving plate 51 moves in the groove 64a and can be moved to the end thereof. Is caught by the opening / closing limiting means 60. As a result, the moving plate 51 can no longer move to the right in FIG. 17B, and its movement is prohibited. However, in this case, more movement is allowed by the length L ₁ (see FIG. 10) of the groove 64a than in the case shown in FIG.

Third, as shown in FIG. 18, the knob 61 of the opening / closing limiting means 60 is rotated, and the notched portion 64 b of the locked portion 64 provided in the locked member 62 of the opening / closing limiting means 60 is moved to the moving plate 51. Are arranged so as to face the holding part 52 side (the holding part 52 that does not include the second helical gear 43 between the two holding parts 52, 52). At this time, as can be seen from FIG. 18B, the locking projection 52b (see also FIG. 8) of the moving plate 51 can be moved to the side surface of the notch portion 64b, and the opening / closing limiting means 60 can be moved on the side surface. Get caught in. As a result, the moving plate 51 can no longer move to the right in FIG. 18B, and its movement is prohibited. In this case, more movement is allowed by the notch depth L ₂ (see FIG. 10) than in the case shown in FIG.
Here, if those different and the length L ₂ of the notch and the length L ₁ of the groove 64a, it is possible to limit the movement of the moving plate 51 into two different sizes. In this _embodiment, the _L 1> L _2.

  As described above, the movable plate 51, that is, the movable range of the connecting pin 55 can be set to three (fully closed, fully open, half open) with one knob 61 by the opening / closing limiting means 60.

  Returning to FIGS. 1 to 6, the description of the opening / closing device 30 will be continued. The operating member 70 is a handle-like member that is engaged with the engaging portion 40 (see FIG. 7) of the transmission shaft 38 provided in the drive device 31 and rotates the engaging portion 40. Therefore, the operator can rotate the operating member 70 to rotate the transmission shaft 38, operate the driving device 31, and open / close the shoji 20. The opening and closing of the shoji 20 will be described later.

As can be seen from FIGS. 5 and 6, the connecting arm group 75 includes a first arm 76, a second arm 77, a third arm 78, and a fourth arm 79. Both are long rod-shaped members.
One end of the first arm 76 is rotatably attached to the connecting pin 55 of the driving device 31. Here, the end of the first arm 76 attached to the connecting pin 55 is provided with a hole 76a corresponding to the shape of the connecting pin 55, as shown in FIG. That is, the hole 76a has a hole 76b corresponding to the connecting portion 56 of the connecting pin 55, and has grooves 76c and 76c corresponding to the protrusions 58 and 58 of the connecting pin 55 from the side surface of the hole 76b. Accordingly, the first arm 76 can be easily attached to the connecting pin 55 without using a fixing member such as a screw. Specifically, it will be described later.

One end of the second arm 77 is rotatably attached to the first arm 76 and the other end is rotatably attached to the lower end of the shoji 20.
One end of the third arm 78 is rotatably attached to the lower horizontal frame 13.
The fourth arm 79 has one end rotatably attached to the third arm 78 and the other end rotatably attached to the lower end of the shoji 20.

The above arms are combined as follows to form a connecting arm group 75 and attached to other members of the opening device.
The first arm 76 is connected by inserting the connecting pin 55 into the hole 76a. However, since it must be avoided that the first arm 76 comes off the connecting pin 55 when used as the opening device, the first arm 76 is connected as described below. An explanatory diagram is shown in FIG. A range indicated by XXa in FIG. 20A is a range in which the first arm 76 swings when the shoji 20 is opened and closed. Therefore, after being combined as the opening device 10, the first arm 76 does not have to come out of the connecting pin 55 within the range of XXa.
Therefore, as indicated by XXb in FIG. 20 (a), the projections 58 and 58 of the connecting pin 55 (see FIG. 20 (b)) and the grooves 76c and 76c (see FIG. 19 and FIG. 20 (b)) coincide with each other, and the first arm 76 and the connecting pin 55 are connected at the position of XXb as shown in FIG. 20 (b). Thereafter, the first arm 76 is rotated to the position of XXa. According to this, since the positions of the projections 58 and 58 of the connecting pin 55 and the grooves 76c and 76c of the first arm 76 do not coincide with each other at the position XXa, the above-described disconnection does not occur.
According to such connection, a fixing member such as a screw is not required, and a work space for connection is not required.

As can be seen from FIG. 5, the second arm 77 has one end rotatably connected to the end of the first arm 76 and the other end rotatably connected to the lower end of the shoji 20.
As can be seen from FIG. 5, one end of the third arm 78 is rotatably connected to the lower horizontal frame 13 (see FIGS. 1 and 2). At this time, the first arm 76 and the third arm 78 are arranged so as to cross each other in the middle, and are connected to each other at the crossed portions so as to be freely rotatable.
As can be seen from FIG. 5, one end of the fourth arm 79 is rotatably connected to the end of the third arm 78, and the other end is rotatably connected to the lower end of the shoji 20.

  The opening / closing device 30 described above is arranged in the opening device 10 as follows. That is, as can be seen from FIGS. 1 and 2, the driving device 31 of the opening / closing device 30 is arranged inside the driving device insertion portion 13 a of the lower horizontal frame 13. At this time, the upper surface of the box 34 of the driving device 31 is substantially flush with the upper surface of the lower horizontal frame 13. Therefore, the drive device 31 does not protrude greatly on the frame, and an opening device that is simple in appearance can be provided. In addition, since the driving device does not overlap with the daylighting unit, it is possible to achieve excellent daylighting. In this way, it is difficult to arrange the drive device inside the narrow lower horizontal frame 13 with the conventional switchgear, but with the switchgear 30 this is possible.

  Further, when the drive device 31 is inserted into the drive device insertion portion 13a of the lower horizontal frame 13, the drive device 31 may be lowered from directly above the drive device insertion portion 13a, and the installation is easy.

  As described above, the connecting arm group 75 of the opening / closing device 30 is disposed so as to pass the lower surface of the driving device 31, the lower horizontal frame 13, and the lower end of the shoji 20. At this time, as can be seen from FIG. 2, the space for attaching the first arm 76 to the connecting pin 55 is narrow, so that it is easy to install the drive device 31 on the lower horizontal frame 13 by the above-described attachment structure. The first arm 76 can be connected to the connecting pin 55.

  The opening / closing of the shoji 20 of the opening device 10 configured as described above and the restriction thereof are performed as follows. As a premise, when the moving plate 51 is in the position shown in FIG. 15, the shoji 20 is closed as shown in FIG. 6, and when the moving plate 51 is in the position shown in FIG. 5 is set so that the shoji 20 is opened as shown in FIG.

Consider the case where the shoji 20 is in the closed position as shown in FIG. 6 and the opening / closing limiting means 60 is in the position shown in FIG. At this time, even if the operator tries to rotate the operation member 70, the moving plate 51 is locked to the opening / closing limiting means 60, the moving plate 51 cannot move, and the connecting pin 55 also moves. Since this is not possible, opening of the shoji 20 is prohibited. Therefore, this state is the same as when the door is locked, and it is possible to improve crime prevention. Moreover, since this is performed without adding a new member for locking, it is simple and can improve crime prevention without affecting the appearance.
Of course, this does not preclude the provision of other second and third locking means in order to improve security.

  It is considered to change from the closed position of the shoji 20 shown in FIG. 6 to the open position of the shoji shown in FIG. At this time, the opening / closing restriction means 60 is previously set in the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the opening posture is as shown in FIG. At this time, since the opening / closing limiting means 60 does not prohibit the movement of the moving plate 51 as described above, the opening of the shoji 20 is performed smoothly. Conversely, closing the shoji 20 from the open position of the shoji 20 shown in FIG. 5 is performed retroactively.

Considering the so-called half-opened position, which is a degree of opening smaller than the closing position of the shoji shown in FIG. 5, from the closing position of the shoji 20 shown in FIG. At this time, the opening / closing limiting means 60 is previously set in the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the degree of opening is smaller than the opening position as shown in FIG. At this time, the opening and closing limiting means 60 min L ₂ of moving the cutout portion 64b of the moving plate 51 (see FIG. 10) is allowed, the L ₂ in the present embodiment than the length L ₁ of the groove Since it is short, the shoji 20 can be limited to opening to a half-open posture. Conversely, closing the shoji 20 from the half-opened posture is performed retroactively.

  Thus, since the opening device 10 includes the connecting arm group 75 formed by the first arm 76 to the fourth arm 79, the shoji 20 can be greatly opened. Further, when the shoji 20 is opened and closed, the connecting arm group 75 pushes and pulls the center of the shoji 20 indoors and outdoors, so that the shoji 20 can be opened and closed smoothly without applying a biased load. it can.

  Further, in the mechanism that opens and closes the shoji by the connecting arm group 75, it is necessary to slide at least one end of the arm constituting the connecting arm group 75 in the left-right direction (a direction orthogonal to the indoor / outdoor direction in plan view). is there. Conventionally, another mechanism for converting a rotating arm into a force for sliding is required as described in Patent Document 1 described above. However, according to the driving device 31 of the opening / closing device 30, the end portion of the first arm 76 can be directly moved in the left-right direction. Therefore, the number of parts can be reduced, and the shoji can be opened and closed more smoothly.

  In the present embodiment, the example in which the connecting pin 55 provided in the driving device 31 of the opening / closing device 30 is disposed on the left side of the driving device 31 when viewed from the indoor side has been described. On the other hand, if the rod-like screw 50 can be moved to the left or right side of the second helical gear 43, a mechanism for moving the right side only by changing the position of the connecting pin 55 can be obtained. Other parts are common and a highly versatile switchgear can be provided.

In the present embodiment, the second helical gear 43 is arranged at the approximate center in the longitudinal direction of the drive device 31. However, the position of the second helical gear 43 in the longitudinal direction of the drive device is limited to this. It is not something. For example, the position of the second helical gear may be brought close to one end of the driving device. In accordance with this, the positions of the first helical gear and the operation member are also changed.
That is, according to the present invention, when changing the position of the operation member according to the type and size of the opening device, it is possible to deal with various opening devices without greatly changing the structure of the drive device itself. It can be highly versatile.

  The opening device 10 described above is a so-called skid opening device, but the above opening / closing device can also be applied to a vertical sliding opening device. Further, the opening / closing device can be arranged in a vertical frame and applied to a louver type opening device such as a double glass louver or a side sliding opening device installed at a high place.

  FIG. 21 is a diagram for explaining the opening / closing device according to the second embodiment, and corresponds to FIG. 15. In the opening / closing apparatus of the second embodiment, only the opening / closing limiting means 160 is different from the opening / closing limiting means 60 of the opening / closing apparatus 30, and the other parts are common to the opening / closing apparatus 30, and therefore the same reference numerals are given and descriptions thereof are omitted. FIG. 21 (b) is a view of the portion indicated by XXIc in FIG. 21 (a) as viewed from the direction of the arrow XXIb, and FIG. 21 (c) is an enlarged view of the portion indicated by XXIc in FIG. 21 (a). It is.

The opening / closing limiting means 160 includes a locked member 161 and a shaft 162.
The to-be-latched member 161 has a plate-like to-be-latched plate 161a and a to-be-latched projection 161b that protrudes from one end of the upper surface of the to-be-latched plate 161a.
The shaft 162 is a shaft-like member orthogonal to the longitudinal direction of the drive device, and the locked member 161 is rotatable about the shaft 162.
The size of the locked protrusion 161b of the locked member 161 may be any size as long as the relationship with other parts for restricting the movement and rotation of the shoji 20 described later is established.

  The movement of the connecting pin 55 is restricted by the opening / closing restriction means 160 as follows. The description will be made with reference to FIG. 21 shown earlier and FIGS. 22 and 23 newly shown. 22A and 22B are views corresponding to FIGS. 21B and 21C in a posture in which the locked member 161 is rotated.

  First, as shown in FIG. 21, the locked member 161 is tilted so that the locked projection 161 b of the locked member 161 of the opening / closing limiting means 160 protrudes inside the box 34. At this time, as can be seen from FIG. 21 (c), the locking protrusion 52 b (see also FIG. 8) of the moving plate 51 is hooked on the locked protrusion 161 b of the opening / closing limiting means 160. As a result, the moving plate 51 can no longer move to the right in FIG. 21, and its movement is prohibited.

  Secondly, as shown in FIG. 22, the locked plate 161 a of the opening / closing limiting means 160 is rotated so that the locked plate 161 a is horizontal and does not protrude inside the box 34. At this time, as can be seen from FIG. 22B, the locking projection 52b (see also FIG. 8) of the moving plate 51 can move without being caught by any of the locked plates 161a.

  Third, as shown in FIG. 23, the locked plate 161a of the opening / closing limiting means 160 is rotated so that only the end of the locked plate 161a protrudes inside the box 34. . At this time, as can be seen from FIG. 23 (b), the locking projection 52b (see also FIG. 8) of the moving plate 51 is movable until it is caught by the end of the locked plate 161a. Is caught by the opening / closing restriction means 160. As a result, the moving plate 51 can no longer move to the right in FIG. 22B, and its movement is prohibited.

  As described above, the movable plate 51, that is, the three movable ranges of the connecting pin 55 can be set with one knob by the opening / closing restriction means 160.

  The opening / closing restriction unit 160 configured as described above opens and closes the shoji 20 and restricts it as follows. As a premise, when the moving plate 51 is in the position shown in FIG. 21, the shoji 20 is closed as shown in FIG. 6, and when the moving plate 51 is in the position shown in FIG. Is set so that the shoji 20 is opened as shown in FIG.

  As shown in FIG. 6, consider the case where the shoji 20 is in the closed position and the opening / closing limiting means 160 is in the position shown in FIG. At this time, even if the operator tries to rotate the operation member 70, the moving plate 51 is locked to the opening / closing limiting means 160, and the moving plate 51 cannot move, and the connecting pin 55 also moves. Since this is not possible, opening of the shoji 20 is prohibited. Therefore, this state is the same as when the door is locked, and it is possible to improve crime prevention. Moreover, since this is performed without adding a new member for locking, it is simple and can improve crime prevention without affecting the appearance.

  It is considered to change from the closed position of the shoji 20 shown in FIG. 6 to the open position of the shoji shown in FIG. At this time, the opening / closing restriction means 160 is set in the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the opening posture is as shown in FIG. At this time, the opening / closing limiting means 160 does not prohibit the movement of the moving plate 51 as described above, so that the shoji 20 can be opened smoothly. Conversely, closing the shoji 20 from the open position of the shoji 20 shown in FIG. 5 is performed retroactively.

  Considering the so-called half-opened position, which is a degree of opening smaller than the closing position of the shoji shown in FIG. 5, from the closing position of the shoji 20 shown in FIG. At this time, the opening / closing restriction means 160 is set in the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the degree of opening is smaller than the opening position as shown in FIG. At this time, the open / close limiting means 160 allows the movement of the movable plate 51 until it is locked to the end of the locked plate 161a, and can restrict the shoji 20 to be opened to a half-open position. Conversely, closing the shoji 20 from the half-opened posture is performed retroactively.

  FIG. 24 is a diagram for explaining the opening / closing device according to the third embodiment, and corresponds to FIG. 15. In the opening / closing apparatus according to the third embodiment, only the opening / closing restriction means 260 is different from the opening / closing restriction means 60 of the opening / closing apparatus 30, and the other parts are the same as the opening / closing apparatus 30. . FIG. 24B is a view of the part indicated by XXIVc in FIG. 24A from the direction of the arrow XXIVb, and FIG. 24C is an enlarged view of the part indicated by XXIVc in FIG. It is.

The opening / closing restriction means 260 includes a first locked member 261 and a second locked member 262.
The first locked member 261 includes a pressing portion 261a and a locked piece 261b extending downward from the pressing portion 261a. The first locked member 261 is movable in the vertical direction of the box 34.
The second locked member 262 includes a pressing portion 262a and a locked piece 262b extending downward from the pressing portion 262a. The second locked member 262 is provided closer to the operation member connecting portion 35 than the first locked member 261 and is movable in the vertical direction of the box body 34.

  The movement of the connecting pin 55 is restricted by the opening / closing restriction means 260 as follows. The description will be made with reference to FIG. 24 shown earlier and FIGS. 25 and 26 newly shown. FIGS. 25A and 25B are views corresponding to FIGS. 24B and 24C in a posture in which the open / close restriction unit 260 is moved.

  First, as shown in FIG. 24, the first engaged member so that at least the engaged piece 261 b of the first locked member 261 of the opening / closing limiting means 260 protrudes inside the box 34. 261 is pushed down. At this time, as can be seen from FIG. 24C, the locking protrusion 52 b (see also FIG. 8) of the moving plate 51 is hooked on the locked piece 261 b of the opening / closing limiting means 260. As a result, the moving plate 51 can no longer move to the right in FIG. 24, and its movement is prohibited.

  Secondly, as shown in FIG. 25, neither the first locked member 261 nor the second locked member 262 of the opening / closing limiting means 260 is in a posture that does not protrude inside the box 34. At this time, as can be seen from FIG. 25B, the locking protrusion 52b (see also FIG. 8) of the moving plate 51 can move without being caught by either of the locked pieces 261b and 262b.

  Third, as shown in FIG. 26, the first locked member 261 of the opening / closing limiting means 260 is set so as not to protrude inside the box body 34, and only the second locked member 262 is placed inside the box body 34. The posture is to project. At this time, as can be seen from FIG. 26 (b), the locking protrusion 52 b (see also FIG. 8) of the moving plate 51 can be moved until it is caught by the locked piece 262 b of the second locked member 262. At the same time, it is caught by the opening / closing limiting means 260 by the locked piece 262b. As a result, the moving plate 51 can no longer move to the right in FIG. 26B, and its movement is prohibited.

  As described above, three movable ranges of the moving plate 51, that is, the connecting pin 55 can be set by one opening / closing limiting means 260.

  The opening / closing restriction means 260 configured as described above opens and closes the shoji 20 and restricts it as follows. As a premise, when the moving plate 51 is at the position shown in FIG. 24, the shoji 20 is closed as shown in FIG. 6, and when the moving plate 51 is at the position shown in FIG. Is set so that the shoji 20 is opened as shown in FIG.

  Consider the case where the shoji 20 is in the closed position as shown in FIG. 6 and the open / close limiting means 260 is in the position shown in FIG. At this time, even if the operator tries to rotate the operation member 70, the moving plate 51 is locked to the opening / closing limiting means 260, the moving plate 51 cannot move, and the connecting pin 55 also moves. Since this is not possible, opening of the shoji 20 is prohibited. Therefore, this state is the same as when the door is locked, and it is possible to improve crime prevention. Moreover, since this is performed without adding a new member for locking, it is simple and can improve crime prevention without affecting the appearance.

  It is considered to change from the closed position of the shoji 20 shown in FIG. 6 to the open position of the shoji shown in FIG. At this time, the opening / closing restriction means 260 is set in advance to the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the open posture as shown in FIG. At this time, since the opening / closing restriction means 260 does not prohibit the movement of the moving plate 51 as described above, the opening of the shoji 20 is performed smoothly. Conversely, closing the shoji 20 from the open position of the shoji 20 shown in FIG. 5 is performed retroactively.

  Considering the so-called half-opened position, which is a degree of opening smaller than the closing position of the shoji shown in FIG. 5, from the closing position of the shoji 20 shown in FIG. At this time, the opening / closing restriction means 260 is previously set in the posture shown in FIG. According to this, when the operator rotates the operation member 70 from the posture shown in FIG. 6, the connecting pin 55 moves to the right side of FIG. 6. Then, the end of the first arm 76 engaged therewith also moves to the right of the page. As a result, the first arm 76 is pressed, and the end of the shoji 20 is pushed out to the outdoor side by the action of the connecting arm group 75, so that the degree of opening is smaller than the opening position as shown in FIG. At this time, the opening / closing limiting means 260 allows the movement of the moving plate 51 until it is locked to the locked piece 262b, and can limit the shoji 20 to open to a half-open position. Conversely, closing the shoji 20 from the half-opened posture is performed retroactively.

  Although the present invention has been described in connection with the most practical and preferred embodiments at the present time, the present invention is not limited to the embodiments disclosed herein, The present invention can be changed as appropriate without departing from the spirit or concept of the invention that can be read from the claims and the entire specification, and is provided in an opening / closing device with such a change, an opening device using the opening / closing device, and an opening / closing device. The drive device should also be understood as being within the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Opening device 11 Frame 12 Upper horizontal frame 13 Lower horizontal frame 14 Vertical frame 15 Vertical frame 20 Shoji 30 Opening / closing device 31 Drive device 32 Transmission part 33 Case 36 1st helical gear (1st gear)
38 Transmission shaft 41 Holding member 43 Second helical gear (second gear)
46 Rail member 47 Rail (guide means)
50 Bar-shaped screw 51 Moving plate 52 Holding part 52a Recessed part (guided means)
53 Sliding member 55 Connecting pin (connecting means)
60 Opening / Closing Restricting Unit 70 Operating Member 75 Connecting Arm Group 76 First Arm 77 Second Arm 78 Third Arm 79 Fourth Arm 160, 260 Opening / Closing Limiting Unit

Claims (4)

The frame is arranged on any one of the frame members constituting the frame arranged along the opening of the building, and pushes out and pulls one end of the shoji provided in the frame defined by the frame. A switchgear,
An operation member provided for an operator's operation;
A drive device that operates by operating the operation member;
And at least one arm for connecting the driving device and the shoji,
The driving device is provided with an opening / closing limiting means for limiting the operation of the arm ,
The opening limiting means at the option of the operator, the shoji is capable you to limit the operating range of the arm to at least three postures including cases where the fully closed position opening and closing device. The drive device
A first gear which is rotated by the operation member and has a gear tooth surface shape formed on an outer peripheral surface thereof;
The first gear has a rotation shaft that is not parallel to the rotation shaft, and a gear tooth surface shape that meshes with the first gear is formed on the outer peripheral surface, and a female screw is formed on the inner peripheral surface. A second gear,
A rod-like screw which is arranged with the finding direction as a longitudinal direction in the posture arranged on the frame member, and is screwed with the female screw of the second gear so as to be linearly movable in the finding direction;
And a connecting means that moves following the rod-like screw and is connected to one end of the arm,
The opening limiting means, opening and closing device according to claim 1, characterized in that to limit the operation of the drive device by prohibiting-permitting linear movement of the rod-shaped screw. A frame arranged along the building opening;
A shoji placed in a frame defined by the frame,
The switchgear according to claim 1 or 2 provided in any of the frame members constituting the frame body,
By restricting the operation of the driving device of the opening / closing device, the shoji can be placed in a fully closed posture, a fully open posture, and a half-open posture between the fully closed posture and the fully open posture. An opening device that can be limited by selecting an opening. A driving device that is provided in an opening / closing device provided in the opening device and moves and / or rotates an arm that opens and closes a shoji of the opening device,
A first gear which is rotatably provided and has a gear tooth surface shape formed on the outer peripheral surface;
The first gear has a rotation shaft that is not parallel to the rotation shaft, a gear tooth surface shape that meshes with the first gear is formed on the outer peripheral surface, and a female screw is formed on the inner peripheral surface. A second gear,
A rod-like screw that engages with the female screw of the second gear;
An opening / closing limiting means for prohibiting / permitting linear movement of the bar-like screw by entering and leaving the movement path of the bar-like screw;

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