JP2016151151A - Opening and closing body storage part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing body storage part structure from which a case plate can be hardly detached.SOLUTION: An opening and closing body storage part structure comprises: an upper frame 55 which is fixed to a building skeleton 19 and has an upper fixing part 69 that narrows a groove width H of a front opening groove 79; a lower frame 57 which has an upper opening groove 71; a case plate 59 which is formed in a shape of a square plate with flexibility, and covers an opening and closing body 45 by inserting a lower limb 77 into the upper opening groove 71 and inserting an engaging edge 75 formed on an upper limb 73 into the front opening groove 79 to engage to the upper fixing part 69 and bending along the outside of the opening and closing body 45 in a stored state; and a restricting plate 61 which has an angular part 83 along the upper frame 55 with an obtuse angle θ between a depressing plate 85 on one side and an operation plate 87 on the other side of the angular part 83, and makes the depressing plate 85 press down the engaging edge 75 by inserting the depressing plate 85 between the case plate 59 and the upper fixing part 69 to make a tip edge 95 abut against the engaging edge 75 and rotating the operation plate 87 so as to be parallel with the upper fixing part 69 to make them abut against each other and fixing them.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a structure of an opening / closing body housing portion that houses a mechanism portion of an opening / closing body such as a shutter for a building.

  A shutter curtain, which is an opening / closing body of the shutter device, opens / closes by moving up and down the opening of the building frame. The shutter curtain is wound up above the opening of the building frame to form a wound body. This wound body is housed inside the opening / closing body housing part. Therefore, the shutter curtain housed in the opening / closing body housing part moves up and down the opening part by winding and unwinding. By the way, the opening / closing body storage part may be disposed in a ceiling pocket (see, for example, Patent Document 1). In this case, the opening / closing body accommodating portion can simplify the exterior member.

  That is, as shown in FIG. 6, the opening / closing body storage unit 501 can be configured by an upper frame 503, a lower frame 505, and a case plate 507. The upper frame 503 has an upper edge fixing portion 513 that is fixed to the building housing 509 above the wound body (not shown) and narrows the groove width of the front opening groove 511, and is formed in a substantially C-shaped cross section. The lower frame 505 is supported by the building housing 509 below the wound body, has an upper surface opening groove 515, and has a substantially C-shaped cross section. The case plate 507 is formed in a square plate shape and has flexibility. The case plate 507 has an upward L-shape provided on the upper side portion 519 by inserting the lower side portion 517 into the upper surface opening groove 515 and bending the plate surface. The locking edge portion 521 is inserted into the front opening groove 511 and locked to the upper edge fixing portion 513 and attached so as to follow the wound body. Both side portions of the case plate 507 are closed by brackets 523. According to the opening / closing body storage 501, the case plate 507 can be a simple flat square plate.

JP 2008-169645 A

  However, the above-described conventional opening / closing body accommodating portion 501 bends the flat case plate 507 against the elastic restoring force, and the elastic restoring force causes the upper and lower edges of the case plate 507 to be moved to the lower frame 505 and the upper frame 503. Therefore, if the upper edge side of the case plate 507 moves up and down due to vibration caused by an earthquake or the like (arrow in FIG. 6), the upper frame 503 and the locking edge portion 521 are moved. And the case plate 507 may be disengaged. Since the upper and lower edges of the case plate 507 are locked to the upper and lower frames 503 and 505 on the building skeleton side by the elastic restoring force, the upper edge of one of the upper and lower edges, that is, the front opening groove 511 of the upper frame 503 as described above. If the locking edge portion 521 is pulled out and detached, it is easily detached from between the upper and lower frames 503 and 505 and may fall.

  This invention is made | formed in view of the said condition, The objective is to provide the structure of the opening-closing body accommodating part which makes it difficult to remove a case board.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the opening / closing body housing part according to claim 1 of the present invention is housed above the opening 21 of the building housing 19, and an opening / closing body 45 that opens and closes the opening 21 to open and close,
It is fixed to the building housing 19 above the opening / closing body 45 in the storage state, and has an upper edge fixing portion 69 that narrows the groove width H of the front opening groove 79, and is formed in a substantially C-shaped cross section. An upper frame 55 extending along the opening / closing body 45;
A lower frame that is supported by the building housing 19 below the opening / closing body 45 in the housed state, has an upper surface opening groove 71 and has a substantially C-shaped cross section, and extends along the door 45 in the housed state. 57,
It is formed in a square plate shape and has flexibility, and the lower side portion 77 is inserted into the upper surface opening groove 71, and the upward L-shaped locking edge portion 75 provided in the upper side portion 73 is the front opening groove 79. A case plate 59 that is inserted into the upper edge fixing portion 69 and is bent along the outside of the opened / closed body 45 so as to cover the open / close body 45;
Along with the upper frame 55, it is formed in a substantially strip-like shape, and has a cornered portion 83 along the upper frame 55, and is formed in a substantially square shape, with the cornered portion 83 as a boundary. The holding angle θ between the one pressing plate portion 85 and the other operation plate portion 87 becomes an obtuse angle, and the pressing plate portion 85 is inserted between the case plate 59 and the upper edge fixing portion 69 to The front edge 95 of the pressing plate 85 is brought into contact with the locking edge 75, and the operation plate 87 is rotated so as to be parallel to the upper edge fixing portion 69. 69, the pressing plate 85 presses the locking edge 75 and makes the locked state by the elastic restoring force of the case plate 59 by abutting and fixing 69,
It is characterized by comprising.

  In the structure of the opening / closing body accommodating portion, the pressing plate portion 85 of the restriction plate 61 is inserted between the case plate 59 and the upper edge fixing portion 69, and the operation plate portion 87 of the restriction plate 61 is connected to the upper edge fixing portion 69. It is rotated and fixed so as to be parallel and abut. By this rotation, the restricting plate 61 is locked in a state where the pressing plate portion 85 pushes down the locking edge portion 75 of the case plate 59. The case plate 59 tries to maintain the locked state of the pressing plate portion 85 by a larger elastic restoring force when the locking edge portion 75 is pushed down. That is, the locking edge 75 of the case plate 59 is less likely to come off than when the restriction plate 61 is not inserted. Further, the pressing plate portion 85 of the regulating plate 61 is locked to the pressing plate portion 85 at a position where the locking edge portion 75 is pressed down. That is, the front opening groove 79 of the upper frame 55 is arranged such that the front end edge 95 of the pressing plate portion 85 is located below the upper edge fixing portion 69, so that the groove width H of the front opening groove 79 is further narrowed. Also by this, the locking edge portion 75 of the case plate 59 is less likely to come off the upper frame 55 than when the restriction plate 61 is not inserted.

The structure of the opening / closing body housing part according to claim 2 of the present invention is the structure of the opening / closing body housing part according to claim 1,
The distance from the cornered portion 83 of the operation plate portion 87 to the operation plate portion edge 93 is larger than the distance from the cornered portion 83 of the pressing plate portion 85 to the leading edge 95 of the pressing plate portion. And

  In the structure of the opening / closing body housing portion, the restriction plate 61 is configured such that the pressing plate portion 85 is inserted between the case plate 59 and the upper edge fixing portion 69 so that the operation plate portion 87 is parallel to the upper edge fixing portion 69. So that it is rotated. At this time, the restriction plate 61 is rotated with the sandwiched corner side of the cornered portion 83 in contact with the suspended lower end of the upper edge fixing portion 69 and using the suspended lower end as a fulcrum. When the regulation plate 61 pushes the operating plate portion edge 93 and pushes down the locking edge portion 75 with the pressing plate portion leading edge 95, the restriction plate 61 can rotate using the lever principle. The restriction plate 61 is set such that the distance from the cornered portion 83 to the operation plate portion edge 93 is longer than the distance from the cornered portion 83 to the pressing plate portion leading edge 95. Thereby, the regulation plate 61 can fix the operation plate portion 87 to the upper edge fixing portion 69 by applying a large pressing force to the case plate 59 with a small rotational operation force.

The structure of the opening / closing body housing part according to claim 3 of the present invention is the structure of the opening / closing body housing part according to claim 1 or 2,
The sandwiching angle θ is smaller than 135 °.

  In the structure of the opening / closing body housing portion, the restricting plate 61 has a pressing plate portion 85 sandwiched between the case plate 59 and the upper edge fixing portion 69 in the horizontal direction. The upper edge fixing portion 69 hangs from the upper frame 55 so as to narrow the groove width H. Accordingly, the angle between the pressing plate portion 85 and the operation plate portion 87 is smaller than 135 °, so that a rotatable operation space having a maximum of 45 ° is provided between the upper edge fixing portion 69 and the operation plate portion 87. Is secured. As a result, it is possible to prevent a reduction in fixed workability due to an excessively large operation space and an insufficient push-down due to an excessively small operation space.

According to the structure of the opening / closing body housing portion according to claim 1 of the present invention, the pressing plate portion of the restriction plate inserted between the case plate and the upper edge fixing portion of the upper frame is the operation plate portion of the restriction plate. By rotating and fixing to the upper edge fixing portion, the pressing plate portion of the restriction plate is locked in a state where the locking edge portion of the case plate is pushed down, and the case plate is moved by a larger elastic restoring force. It is intended to maintain the locking state on the pressing plate portion, and the locking edge portion of the case plate is difficult to come off from the upper frame, that is, it is possible to prevent the case plate from dropping off.
In addition, since the pressing plate portion of the restriction plate is locked to the pressing plate portion at a position where the locking edge portion is pressed down, the front opening groove of the upper frame is fixed at the leading edge of the pressing plate portion. Therefore, the groove width of the front opening groove is further narrowed, thereby making it difficult to remove the locking edge portion of the case plate and make it difficult to remove the case plate.

  According to the structure of the opening / closing body housing portion according to claim 2 of the present invention, the pressing plate portion of the restriction plate inserted between the case plate and the upper edge fixing portion pushes the operation plate portion edge, When the locking edge is pushed down by the edge, it will rotate as a lever principle, and the distance from the corner to the edge of the operation plate is larger than the distance from the corner to the front edge of the pressing plate. By setting the length long, the rotation operation, that is, the rotation operation against the elastic restoring force of the case plate can be performed with a small rotation operation force, and the operation plate portion is raised by applying a large pressing force to the case plate. Can be fixed to the edge fixing part. Thereby, the fixing operation of the restriction plate can be facilitated.

  According to the structure of the opening / closing body housing portion according to claim 3 of the present invention, the sandwiching angle between the pressing plate portion and the operation plate portion is smaller than 135 °, so that the gap between the upper edge fixing portion and the operation plate portion is between. As a result, a rotatable operation space having a maximum of 45 ° is secured. As a result, it is difficult to cause a decrease in fixing workability due to the operation space being too large, or insufficient push-down due to the operation space being too small, i.e., good fixing workability and a high release restriction effect of the locking edge. Both can be achieved.

It is a front view of the shutter apparatus provided with the opening-closing body accommodating part which concerns on embodiment of this invention. It is a front enlarged view of the opening-closing body accommodating part shown in FIG. It is an expanded sectional side view of the opening-closing body accommodating part shown in FIG. It is an expanded sectional side view of the front opening groove to which the control board which latches a latching edge was fixed. (A) is explanatory drawing of the case board attachment procedure before latching edge part insertion, (b) is explanatory drawing of the attachment procedure just after insertion of a control board, (c) is explanatory drawing of the attachment procedure after regulation board rotation. . It is an expanded sectional side view of the conventional opening-closing body accommodating part.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a front view of a shutter device provided with an opening / closing body housing portion according to an embodiment of the present invention, FIG. 2 is an enlarged front view of the opening / closing body housing portion shown in FIG. 1, and FIG. 3 is an opening / closing body shown in FIG. It is an expanded sectional side view of a storage part.
The structure of the opening / closing body storage unit according to the present embodiment is applied to a shutter device that opens and closes an opening of a building such as an apartment house, a factory, a warehouse, a commercial facility, an underground mall, or an office building. Further, the structure of the opening / closing body housing is particularly suitable for use in a fire-proof shutter that is a shutter device. Examples of the fire shutter include an upper electric type, an upper manual type, a lower manual type, and a hook type.

  In the shutter device 11 according to the present embodiment, a case 13 that is an opening / closing body housing portion that houses main mechanisms is installed in a ceiling pocket 17 above the ceiling 15. That is, an opening 21 is provided in the wall 19 that is a building frame, and the opening 21 intersects the ceiling 15 at the position of the lintel 23 that is a horizontal member. The case 13 is fixed to a wall portion 19 or a beam in the ceiling pocket 17 above the ceiling 15. The case 13 houses the winding shaft 25, the opening / closing machine 27, the automatic closing device 29, the control panel 31, and the like. Both ends of the winding shaft 25 are rotatably supported by the bearing portion 33. The bearing portion 33 is attached to a bracket 35 that is fixed to the wall portion 19 and closes both side portions of the case 13. The take-up shaft 25 is rotated in the forward and reverse directions by transmitting a rotational driving force from the opening / closing machine 27 to a shaft sprocket 37 fixed to one end side. The rotary drive of the switch 27 is connected to an automatic closing device 29, a manual closing device 39, a push button switch 41, a detector 43 (a smoke detector, a heat detector or a fuse device), a limit switch (not shown), and the like. Controlled by the control panel 31.

  The shutter device 11 includes a shutter curtain 45 that is an opening / closing body. As the shutter curtain 45, in the case of a fire shutter, a slat curtain formed by connecting a plurality of steel slats is generally used. However, a sheet shutter using a non-combustible or fire resistant sheet such as silica fiber is employed. May be.

  The shutter curtain 45 is wound up by the winding shaft 25 above the opening 21 provided in the wall portion 19 to be in a housed state, that is, a wound body 47. The shutter curtain 45 opens and closes the opening 21 by opening and closing the wound body 47. The raising and lowering of the shutter curtain 45 is guided by a pair of guide rails 49 provided on both sides of the opening 21. A seat plate 51 is attached to the leading end of the shutter curtain 45 in the extending direction. When the shutter curtain 45 is closed, the seat plate 51 lands on the floor and closes the gap between the floor surface 53.

  The shutter curtain 45 with the opening 21 opened is accommodated as a wound body 47 wound around the winding shaft 25 inside the case 13. The case 13 that houses the wound body 47 includes an upper frame 55, a lower frame 57, a case plate 59, and a restriction plate 61 as main components.

  The upper frame 55 is made of a steel material, extends along the axis 63 of the wound body 47, and is fixed to the wall portion 19 above the wound body 47. The upper frame 55 may be reinforced by an angle member 65 (see FIG. 3) fixed over the wall portion 19. The upper frame 55 has a front opening groove 79. Further, the upper frame 55 has an upper edge fixing portion 69 that narrows the groove width H of the front opening groove 79. The upper frame 55 has the front opening groove 79 and the upper edge fixing portion 69 so that the direction orthogonal to the longitudinal direction is formed in a substantially C-shaped cross section. In the present embodiment, the upper frame 55 is formed by a single piece extending over the left and right brackets 35.

  The lower frame 57 is made of a steel material, extends along the axis 63, that is, is arranged in parallel with the upper frame 55, and is supported by the wall portion 19 via the bracket 35 below the wound body 47. . The lower frame 57 has an upper surface opening groove 71. The lower frame 57 has the upper surface opening groove 71 so that the direction orthogonal to the longitudinal direction is formed in a substantially C-shaped cross section. In the present embodiment, the lower frame 57 is formed by a single piece extending over the left and right brackets 35, similarly to the upper frame 55.

  The case plate 59 is made of a steel material, is formed in a square plate shape, and has flexibility. The case plate 59 has an upward L-shaped locking edge 75 on the upper side 73. In the case plate 59, the lower side portion 77 is inserted into the upper surface opening groove 71 of the lower frame 57, and the locking edge portion 75 of the upper side portion 73 is inserted into the front opening groove 79 of the upper frame 55. The locking edge portion 75 of the case plate 59 is inserted into the front opening groove 79 to be locked to the upper edge fixing portion 69 of the upper frame 55 from the back side. In the present embodiment, a plurality of case plates 59 are attached between the left and right brackets 35. Adjacent case plates are overlapped with each other at a predetermined overlap margin 81. The case plate 59 is divided into a plurality of sheets, so that the weight is reduced and the mounting workability is improved.

  As shown in FIG. 3, the case plate 59 is curved and wound along the outside of the wound body 47 by fitting the lower side portion 77 and the upper side portion 73 into the lower frame 57 and the upper frame 55, respectively. The rotating body 47 is attached so as to cover it. The case plate 59 is bent by its material to generate an elastic restoring force that attempts to restore it into a flat plate shape. By this elastic restoring force, the lower side portion 77 and the upper side portion 73 are transformed into the lower frame 57 and the upper frame 55. It comes into a fixed state by elastic contact. Therefore, when removing the case plate 59, the upper edge 73 is pushed down against the elastic restoring force, and the engagement between the engagement edge 75 and the upper edge fixing part 69 is released, so that the engagement edge 75 is pulled out from the front opening groove 79.

  The restriction plate 61 is formed in a long strip shape along the shaft core 63. The restricting plate 61 has an obtuse angle θ (see FIG. 4) between one pressing plate 85 folded at a corner 83 along the axis 63 and the other operation plate 87. That is, the regulation plate 61 is formed in a substantially square shape in the direction orthogonal to the longitudinal direction.

  The restricting plate 61 is used by sandwiching the pressing plate portion 85 between the case plate 59 and the upper edge fixing portion 69 and abutting the leading end edge 95 against the locking edge portion 75. The restriction plate 61 rotates the operation plate portion 87 in parallel with the upper edge fixing portion 69 in a state where the leading edge 95 of the pressing plate portion 85 is in contact with the locking edge portion 75. The restricting plate 61 is fixed to an operation plate portion 87 which is in parallel with and in contact with the upper edge fixing portion 69 by fixing means such as a screw 89. In addition, as the fixing means, a rivet, a clip provided with a locking claw capable of locking an open leg at the insertion tip, or the like can be used. In this way, the operation plate 87 is fixed to the upper edge fixing portion 69 of the upper frame 55 so that the restricting plate 61 is locked to the locking edge 75 pressed down by the pressing plate 85.

  In the present embodiment, a plurality of restriction plates 61 are attached along the upper frame 55 between the left and right brackets 35. Adjacent regulation plates 61 are abutted with each other with an adjacent end portion serving as a butting portion 91. The restriction plate 61 is divided into a plurality of sheets, so that the weight is reduced and attachment workability at the time of rotation fixing is improved.

FIG. 4 is an enlarged side sectional view of a front opening groove to which a restriction plate for locking the locking edge is fixed.
The restriction plate 61 has a distance (operation plate portion length S) from the angled portion 83 of the operation plate portion 87 to the operation plate portion edge 93 from the angled portion 83 of the press plate portion 85 to the tip end edge 95 of the press plate portion. It is formed to be larger than the distance (pressing plate portion length L), that is, L <S. Thereby, the restricting plate 61 can obtain a large pressing force with a small operating force (moment) during rotation. That is, the mounting workability is improved.

  In addition, the regulation plate 61 is preferably set so that the sandwiching angle θ is smaller than 135 °. In the present embodiment, the sandwiching angle of the regulation plate 61 is set to 120 °.

  Furthermore, it is preferable that various dimensions of the regulating plate 61 that locks the locking edge 75 and the front opening groove 79 have the following relationship. That is, the groove width H of the front opening groove 79 is preferably larger than the height h of the locking edge 75 (h <H). By making the groove width H larger than the height h of the locking edge 75, the insertion workability of the locking edge 75 can be improved. The reduced groove width d between the pressing plate tip end edge 95 after the restriction plate 61 is fixed and the groove inner wall surface 97 of the front opening groove 79 facing the upper edge fixing portion 69 is larger than the locking edge 75 height h. Small (d <h) is preferred. By making the groove width d after reduction smaller than the height h of the locking edge 75, the locking edge 75 can be more easily removed from the front opening groove 79 and can be prevented from coming off. Under the above condition (d <h <H), the pressing plate length L is L = (H−d) / sin (θ−π / 2). That is, by setting (H−d) / sin (θ−π / 2) <S, it is possible to achieve both good fixing workability by the restricting plate 61 and a high detachment restricting effect of the locking edge portion 75. .

Next, a procedure for attaching the case plate 59 in the structure of the opening / closing body housing described above will be described.
FIG. 5A is an explanatory diagram of a case plate attachment procedure before insertion of the locking edge, FIG. 5B is an explanatory diagram of the attachment procedure immediately after insertion of the regulation plate, and FIG. 5C is an explanatory diagram of the attachment procedure after rotation of the regulation plate. It is.
In order to attach the case plate 59 in the structure of the opening / closing body housing portion, first, the lower side portion 77 of the case plate 59 is inserted into the upper surface opening groove 71 of the lower frame 57 as shown in FIG. Next, the upper side portion 73 of the case plate 59 is formed in the front opening groove 79 of the upper frame 55 as shown in FIG. Insert into.

  When the case plate 59 is released with the locking edge 75 inserted in the front opening groove 79, the lower side 77 is locked to the upper surface opening groove 71 by the elastic restoring force of the case plate 59 itself. The stop edge portion 75 is locked to the upper edge fixing portion 69 from the back side and is fixed.

  In the structure of the opening / closing body storage portion, as shown in FIG. 5B, a pressing plate portion 85 of the restriction plate 61 is further provided between the upper side portion 73 of the case plate 59 and the upper edge fixing portion 69. Inserted. The inserted restriction plate 61 abuts the leading edge 95 of the push-down plate portion 85 against the locking edge portion 75 of the case plate 59. The regulation plate 61 is formed with a length of about 1 m. A plurality of restriction plates 61 are sandwiched between the upper frame 55 and the case plate 59 with both end edges abutting each other. The restricting plate 61 is continuously attached in the longitudinal direction with no gap. For example, if the opening size of the shutter curtain 45 is 6000 mm, six are used.

  In this state, as shown in FIG. 5C, the operation plate portion 87 of the restriction plate 61 is lifted, and the restriction plate 61 is rotated counterclockwise in the same figure with the hanging end of the upper edge fixing portion 69 as a fulcrum. . The restricting plates 61 are raised one by one by this action and raised including the position of the overlap allowance 81 to be screwed. The screw 89 is preferably a tapping screw. In the tapping screw, a drill portion for drilling a pilot hole is integrally formed at the tip of the male screw portion. As a result, if screw through holes are drilled at predetermined intervals only in the operation plate portion 87, it is not necessary to drill a lower hole in the upper edge fixing portion 69. As a result, troublesome hole alignment becomes unnecessary and workability can be improved.

  The case plate 59 is further curved and deformed when the regulating plate 61 is raised by the action of the lever. With this rotation, the regulation plate 61 comes into contact with the upper edge fixing portion 69 so that the operation plate portion 87 becomes parallel. The restricting plate 61 screw-fixes the operation plate portion 87 that is in contact with the upper edge fixing portion 69 to the upper edge fixing portion 69. The groove width H of the upper frame 55 is narrowed by the pressing plate portion 85 of the restricting plate 61 and becomes the reduced groove width d. The post-reduction groove width d is a width through which the locking edge 75 cannot pass. Thereby, the attachment of the case plate 59 to the lower frame 57 and the upper frame 55 is completed, and the assembly of the case 13 is completed.

  Note that the structure of the opening / closing body housing part can be removed by removing the screw 89 if the case plate 59 needs to be removed during maintenance or the like. As a result, the front opening groove 79 has a groove width H, and the engagement between the locking edge portion 75 and the upper edge fixing portion 69 can be released, and the upper side portion 73 of the case plate 59 is pulled out from the front opening groove 79. The case plate 59 can be easily removed. That is, the removal of the case plate 59 and the removal of the case plate 59 can be performed by attaching and detaching the regulation plate 61.

Next, the operation of the above configuration will be described.
In the structure of the opening / closing body housing portion according to the present embodiment, the pressing plate portion 85 of the restriction plate 61 is inserted between the case plate 59 and the upper edge fixing portion 69, and the operation plate portion 87 of the restriction plate 61 is the upper edge. It is rotated and fixed so as to be parallel to the fixing portion 69. By this rotation, the restricting plate 61 is locked in a state where the pressing plate portion 85 pushes down the locking edge portion 75 of the case plate 59. The case plate 59 is locked to the pressing plate portion 85 by a larger elastic restoring force when the locking edge portion 75 is pushed down. That is, the locking edge 75 of the case plate 59 is less likely to come off than when the restriction plate 61 is not inserted.

  Further, the pressing plate portion 85 of the regulating plate 61 is locked to the pressing plate portion 85 at a position where the locking edge portion 75 is pressed down. In other words, the front opening groove 79 of the upper frame 55 has the pressing plate front end edge 95 disposed below the upper edge fixing portion 69, thereby further reducing the width of the front opening groove 79. Also by this, the locking edge portion 75 of the case plate 59 is less likely to come off the upper frame 55 than when the restriction plate 61 is not inserted.

  Further, in the structure of the opening / closing body housing portion, the restriction plate 61 is configured such that the pressing plate portion 85 is inserted between the case plate 59 and the upper edge fixing portion 69 and the operation plate portion 87 is parallel to the upper edge fixing portion 69. It is rotated to become. At this time, the restriction plate 61 is rotated with the sandwiched corner side of the cornered portion 83 in contact with the suspended lower end of the upper edge fixing portion 69 and using the suspended lower end as a fulcrum. When the regulation plate 61 pushes the operating plate portion edge 93 and pushes down the locking edge portion 75 with the pressing plate portion leading edge 95, the restriction plate 61 can rotate using the lever principle.

  The restriction plate 61 is set such that the distance from the cornered portion 83 to the operation plate portion edge 93 is longer than the distance from the cornered portion 83 to the pressing plate portion leading edge 95. Thereby, the regulation plate 61 can fix the operation plate portion 87 to the upper edge fixing portion 69 by applying a large pressing force to the case plate 59 with a small rotational operation force. Since the regulation plate 61 uses the lever principle, even if it has a certain length, it can be held with one hand, and the case plate 59 can be easily bent and deformed to narrow the groove width H. As a result, the structure of the opening / closing body housing part can facilitate the fixing work of the regulating plate 61.

  Further, the pressing plate 85 is sandwiched in the horizontal direction between the case plate 59 and the upper edge fixing portion 69. The upper edge fixing portion 69 hangs from the upper frame 55 so as to narrow the groove width. Accordingly, the angle between the pressing plate portion 85 and the operation plate portion 87 is smaller than 135 °, so that a rotatable operation space having a maximum of 45 ° is provided between the upper edge fixing portion 69 and the operation plate portion 87. Is secured. In the present embodiment, since the sandwiching angle θ is 120 °, a rotatable operation space of 30 ° is secured. As a result, it is possible to prevent a reduction in fixed workability due to an excessively large operation space and an insufficient push-down due to an excessively small operation space. As a result, it is possible to achieve both a good fixing workability and a high separation regulating effect of the locking edge 75.

  Therefore, according to the structure of the opening / closing body housing part according to the present embodiment, it is possible to make it difficult to remove the case plate 59 covering the opening / closing body housing part. Further, the regulation plate 61 that makes it difficult to remove the case plate 59 is easy to attach, so that workability is improved. Furthermore, the ease of removing and attaching the restriction plate 61 improves the maintainability in the storage unit.

13 ... Opening / closing body storage (case)
19 ... Wall (building frame)
21 ... Opening 45 ... Opening / closing body (shutter curtain)
55 ... Upper frame 57 ... Lower frame 59 ... Case plate 61 ... Restriction plate 63 ... Axle 69 ... Upper edge fixing part 71 ... Upper surface opening groove 73 ... Upper side part 75 ... Locking edge part 77 ... Lower side part 79 ... Front opening groove 83 ... Cornered portion 85 ... Pressing plate portion 87 ... Operation plate portion 93 ... Edge of operation plate portion 95 ... Tip edge of pressing plate portion H ... Groove width θ ... Angle

Claims (3)

An opening / closing body that is housed above the opening of the building frame and that opens and closes the opening;
It is fixed to the building frame above the opened / closed body in the stowed state, has an upper edge fixing portion that narrows the groove width of the front opening groove, and is formed in a substantially C-shaped cross section, along the opened / closed body in the stowed state An upper frame extending;
A lower frame that is supported by the building housing below the storage state opening and closing body, has an upper surface opening groove, is formed in a substantially C-shaped cross section, and extends along the storage state opening and closing body;
It is formed in a square plate shape and has flexibility, and the lower side portion is inserted into the upper surface opening groove, and the upward L-shaped locking edge portion provided on the upper side portion is inserted into the front opening groove to A case plate that engages with the upper edge fixing portion and curves along the outside of the stored open / close body to cover the open / close body;
It is formed in a substantially strip-like shape that is long along the upper frame, and has a cornered portion that extends along the upper frame, is formed in a substantially square shape, and is formed with the cornered portion as a boundary. The angle between the pressing plate portion and the other operation plate portion becomes an obtuse angle, the pressing plate portion is inserted between the case plate and the upper edge fixing portion, and the leading edge of the pressing plate portion is locked. The operation plate portion is rotated so as to be parallel to the upper edge fixing portion, and the operation plate portion and the upper edge fixing portion are contacted and fixed so that the pressing plate portion is A regulating plate that presses the locking edge and is locked by the elastic restoring force of the case plate;
The structure of the opening-closing body accommodating part characterized by comprising. It is a structure of the opening-closing body accommodating part of Claim 1, Comprising:
The opening / closing body storage portion, wherein a distance from the cornered portion of the operation plate portion to an edge of the operation plate portion is greater than a distance from the cornered portion of the pressing plate portion to a leading edge of the pressing plate portion. Structure. It is a structure of the opening-closing body accommodating part of Claim 1 or 2, Comprising:
The structure of the opening / closing body accommodating part, wherein the included angle is smaller than 135 °.

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