JP2016166451A - Ceiling inspection port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling inspection port capable of effectively preventing a lid body from coming off, for example, in opening/closing of a door of a highly-airtight house, and also capable of making opening/closing operability proper.SOLUTION: A ceiling inspection port A, which is fixed to the periphery of an opening 2 opened in a ceiling 1, closes the opening 2 by supporting a lid body 4 put into a ceiling space 3 through the opening 2. The lid body 4 is supported in such a manner as to be capable of protruding/receding between a use preparation position and a use position along a specific diagonal line D direction. A hold-down part 6, which regulates the amount of lift by overlapping a top surface of at least a location of a corner part 53 of the lid body 4 in association with movement to the use position from the use preparation position, is formed to constitute the ceiling inspection port.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a ceiling inspection port.

  As a ceiling inspection port which is fixed around the opening opened in the ceiling and supports the lid placed in the back of the ceiling through the opening to close the opening, the one described in Patent Document 1 has been known. In this conventional example, the ceiling inspection port projects a support piece from the four sides to the inside of the opening, and a pair of locking members having different heights are provided above the opening, and has a resilient performance. A piece is formed at the proximal end of each locking member.

  Since the above-described ceiling inspection port sandwiches the lid body between the support piece and the locking piece, it can prevent the lid body from being beaten and removed by wind pressure or the like, and the locking piece has elastically deformed. Sometimes the locking member prevents the lid from rising. One of the locking members having a higher height is formed with a dent recess capable of squeezing the edge of the inclined lid body outwardly of the opening, and when removing the lid body, First, if one end edge side of the lid facing the one latching member with the recessed portion is pushed upward, the latching piece at the corresponding position is unlocked with elastic deformation and the lid Then, if the lid is slid and moved to the side of the recessed portion while being tilted, the locking piece at the opposite position is also unlocked. In this state, the end edge on the opposite side of the lid body is at a position removed from the locking member, and the lid body can be removed by finally pushing the end edge portion upward.

JP-A-7-197639

  However, in the above-described conventional example, since it is necessary to improve the elastic performance of the locking piece in consideration of the detachability of the lid, the locking member is substantially relied upon to prevent the lid from turning. The locking member and the lid must be arranged at a considerable distance in order to secure an arrangement space for the locking piece and the recessed portion. It is inevitable that the lid will float up from time to time, and that the lid will tilt and shift to the side, etc., and that the removed lid will fall into the room. There is a drawback.

  Furthermore, in the conventional example, there is also a drawback that much effort is required for the operation of attaching and detaching the lid.

  The present invention has been made to eliminate the above drawbacks, and can effectively prevent the lid from coming off when the door of a highly airtight house is opened and closed, and can also improve the opening and closing operability. The purpose is to provide a possible ceiling inspection port.

According to the present invention, the above-mentioned object is
A ceiling inspection port which is fixed around the opening 2 opened in the ceiling 1 and supports the lid 4 inserted in the ceiling back 3 through the opening 2 to close the opening 2;
The lid 4 is supported so as to be movable back and forth between a use preparation position and a use position along a specific diagonal D direction,
Accomplished by providing a ceiling inspection port in which a pressing part 6 is formed which is superposed on the upper surface in the vicinity of at least three corners 5 of the lid 4 in accordance with the movement from the use preparation position to the use position and regulates the amount of lifting. Is done.

  According to the present invention, the ceiling inspection port supports the lid body 4 so as to be able to translate along the specific diagonal D direction, and allows the lid body 4 to move back and forth between the use preparation position and the use position. . In addition, a pressing portion 6 that overlaps with the upper surface of the lid body 4 is formed as the movement from the use preparation position to the usage position is performed, and the lifting amount of the lid body 4 at the usage position is regulated by the pressing portion 6. Furthermore, the restriction of the lifting amount at the use position of the lid body 4 by the pressing portion 6 is performed by using the movement of the lid body 4 in the diagonal direction D from the preparation position for use, and at least in the vicinity of three corners 5 thereof. Made in

  Therefore, by positioning the lid body 4 at the use position, the lid body 4 can be pressed by the pressing portion 6 to prevent or suppress the lid body 4 from moving to the ceiling back 3. In addition, since the pressing portion 6 can be avoided if it is aligned with the use preparation position, the lid body 4 can be lifted from the indoor side at the use preparation position, for example, so that the lid body 4 can be lifted from the ceiling 3. Can be easily removed by removing to the side. To attach the lid 4, it is sufficient if the lid 4 is aligned with the use ready position on the ceiling back 3 and lowered toward the indoor side.

  Further, in order to prevent and suppress the movement to the ceiling 3, the lid 4 can be moved in the diagonal direction D, that is, can be submerged below the pressing part 6 by horizontal movement, and can be pulled out from the pressing part 6 and removed. By doing so, the lid body 4 and the pressing portion 6 can be arranged close to each other, and thereby, the lid body 4 can be lifted to such a height that the lid body 4 may come off at the time of opening and closing the door of a highly airtight house. It can be effectively prevented.

  In addition, since the pressing by the pressing portion 6 is performed in the vicinity of at least three corners 5 of the lid 4, the distance between the corners 5, in other words, the length of one side of the lid 4 is affected. In combination, the tilt of the lid body 4 in both the vertical and horizontal directions can be effectively prevented and suppressed. In addition, the superposition of the pressing portion 6 in the vicinity of the three corner portions 5 is adjacent to one corner portion 5 on the use position side in the lid body 4 and adjacent to the one corner portion 5. By making the vicinity of the two corner portions 5 to be overlapped with the pressing portion 6 overlap, the lid 4 can be moved in the diagonal D direction toward the use position side, which can be realized extremely easily. Furthermore, by setting the overlapping region of the pressing portion 6 in the vicinity of at least three corners 5 of the lid body 4, for example, the pressing portion 6 is overlapped compared to the case where the central portion vicinity of the lid body 4 is the overlapping region. It is possible to reduce the amount of movement of the lid body 4 in the direction of the diagonal line D during the operation, and to improve the operability.

  The above-described ceiling inspection port is, for example, an area that is slightly smaller than the opening 2 by setting the amount of protrusion of the support portion 11 formed to support the lid 4 to the opening 2 slightly larger. Even so, the lid 4 can be translated in the horizontal direction by utilizing such a small area. Further, for example, in the vicinity of the three corners 5, if the presser 6 is projected in parallel with a predetermined interval above the support 11, the remaining corner 5 from the corner 5 side. By moving the lid body 4 in the direction of the diagonal line D, the vicinity of the three corner portions 5 of the lid body 4 can be brought under the pressing portion 6. Further, if the amount of protrusion of the support portion 11 in the vicinity of the corner portion 5 at the remaining one portion is set larger than the amount of movement of the lid body 4, the closed state of the opening 2 is maintained before and after the movement. Is possible.

  In addition, since the arrangement of the pressing portion cannot be grasped from the indoor side in a state where the lid is supported, for example, an item that serves as a mark for determining the specific diagonal D direction described above is provided in the indoor exposed portion. It is enough.

Furthermore, in this case,
Two types of frame members 7A and 7B having a predetermined cross-sectional shape are formed adjacent to each other for the same type and formed into a rectangular frame shape,
Each frame member 7 is formed with a support piece 8 that projects in a flange shape on the inner peripheral edge in the frame state,
If one type of frame member 7A is formed with a pressing piece 9 that is parallel to the support piece 8 at a predetermined interval and that has a smaller overhang, the commonality of the frame member 7 is increased. The mass production efficiency can be improved.

  In addition, if the pressing portion 6 and the like are protruded above the support portion 11 and the like as described above, the pressing portion 6 tends to become an obstacle when the lid body 4 is lowered from the ceiling 3 and attached. In particular, when the lid body 4 lifted from the indoor side is lowered and attached, the position of the pressing portion 6 on the ceiling back 3 side cannot be seen, so that it is difficult to match the lid body 4 to a posture in which the pressing portion 6 is dodged. become. In this respect, if the inclined surface 10 that guides the lid body 4 to the use ready position by abutting against the peripheral edge of the lid body 4 moving toward the support piece 8 side is formed at the tip of the pressing piece 9 described above, By simply lowering the lid body 4 that has been roughly aligned with the preparation position, the pressing portion 6 can be displaced and smoothly moved onto the support portion 11.

  In addition, if the airtight member 12 is interposed between the support portion 11 and the lid body 4 described above, it is desirable for preventing airflow and improving soundproofing performance, or maintaining airtightness in a highly airtight house. Further, when a high friction body is employed as such an airtight material 12, the movement resistance of the lid body 4 can be increased, so that the lid body 4 is moved between the use position and the use preparation position by vibration or the like. It is possible to prevent moving to delirium.

  As is apparent from the above description, according to the present invention, it is possible to effectively prevent the lid from coming off when the door of a highly airtight house is opened and closed, and it is possible to improve the opening and closing operability. Since the ceiling inspection port can be provided, it is possible to facilitate the maintenance and management of the indoor environment and the ceiling back facilities.

It is a figure which shows the ceiling inspection port which concerns on this invention, (a) is a top view, (b) is the 1B-1B sectional view taken on the line of (a). It is a perspective view explaining the assembly and installation operation | work of a ceiling inspection port, (a) is a figure which shows an assembly method, (b) is a figure which shows an installation state. It is a figure which shows an engagement with a cover body, (a) is an end view explaining when the cover body is lowered from the ceiling, (b) is a 3A partial enlarged view of (a), and (c) is 3B of (a). It is a partial enlarged view. It is a figure explaining use operation and is a top view. It is a figure explaining operation | movement of the cover body accompanying use operation, and is the 5A-5A sectional view taken on the line of FIG. FIGS. 6A and 6B are diagrams for explaining an engagement with a lid body in accordance with a use operation, where FIG. 6A is an end view taken along line 6A-6A in FIG. 5 and FIG.

  1 and 2 (a) show a ceiling inspection port A according to the present invention. In this embodiment, the ceiling inspection port A includes a support portion 11 that supports the lid body 4 and a pressing portion 6 that regulates the amount of lifting of the lid body 4 from the support portion 11. It is formed in a rectangular frame shape that surrounds 20.

  The said support part 11 is formed in the flange shape projected over an inner peripheral part over a perimeter, and enables the inspection opening part 20 to be obstruct | occluded by supporting the peripheral part of the cover body 4. FIG. A decorative flange 21 is formed at the lower end of the ceiling inspection port A where the support portion 11 is arranged, and is extended over the entire circumference on the opposite outer peripheral edge portion, so that the parting part of the ceiling 1 can be hidden. For convenience of explanation, the positional relationship such as up and down is defined based on the installation state of the ceiling inspection port A on the ceiling 1.

  On the other hand, the pressing portion 6 is formed in a hook shape projecting inward. The formation range is not the entire circumference of the ceiling inspection port A having a rectangular frame shape like the support portion 11 but only the entire length of two adjacent sides, and an appropriate clearance is added to the thickness of the lid 4. It arrange | positions in parallel with the support part 11 at intervals of a grade. The pressing portion 6 is disposed above the support portion 11, and the amount of the inward protrusion is slightly smaller than the support portion 11.

  The above-described ceiling inspection port A is made of a metal material such as aluminum, and is formed by framing four frame members 7 corresponding to each side as shown in FIG. All the frame members 7 are extrusion-molded products having the same longitudinal dimension, and are constituted by two sets (7A, 7B) according to the presence / absence of the pressing portion 6 described above.

  As shown in FIG. 2 (a) and the like, one type of frame member 7 </ b> A has a support piece 8 and a holding piece 9 arranged in parallel from both side edges of the strip-shaped parting piece 22. The decorative piece 23 is formed so as to protrude in the opposite direction. On the other hand, the other type of frame material 7B is formed by omitting the above-described pressing piece 9 and extending the support piece 8 and the decorative piece 23 from only one side edge of the parting piece 22 in the orthogonal direction. . The projecting dimension of the bearing piece 8 and the decorative piece 23 from the parting piece 22 is the same in both of these two types of frame members 7A and 7B, and the parting piece 22 is slightly wider than the thickness of the ceiling member 24 in both cases. By forming the frame members 7 in a rectangular shape so that the respective support pieces 8 face each other inwardly, the above-described support portions 11 and the decorative flange 21 are respectively connected to the support pieces 8 and the decorative pieces. It is formed by combining four sets of pieces 23. In addition, when the pressing piece 9 has a projecting dimension from the parting piece 22 slightly smaller than that of the support piece 8, the pressing pieces 9 are arranged on the two adjacent sides in the above-described framework, so that the pressing part 6 described above is disposed. Is formed by combining two sets of pressing pieces 9.

  Further, an airtight material 12 made of foamed polyethylene having excellent airtightness and high frictional resistance is attached to the upper surface of each of the support piece 8 and the decorative piece 23. The hermetic material 12 has a long band shape along the longitudinal direction of the support piece 8 or the like, and has a continuous rectangular frame shape like the frame material 7 by the frame of the frame material 7. The width is determined in consideration of airtightness and frictional resistance described later.

  Further, an attachment piece 25 is extended from the upper end edge of the parting piece 22 so as to extend the parting piece 22 upward. This attachment piece 25 functions as an attachment allowance when attaching the ceiling inspection opening A to the ceiling 1 by screwing. The intermediate portion in the extending direction faces inward in the above-described frame, A groove 25a is provided as a guide for the stop height position. In addition, an inclined surface 10 that gradually approaches the support piece 8 is formed at the tip edge of the holding piece 9 as it goes to the tip.

  The above frame member 7 is cut at an angle of 45 degrees at both ends so that the four ends are combined to form a rectangular frame shape, and a corner piece 26 is used for the frame. This corner piece 26 connects the ends of the frame member 7, and specifically, a pair of connecting pieces 27 that can be connected to the ends of the frame member 7 are arranged in an orthogonal direction and are substantially L-shaped. It is manufactured by bending a metal plate material into a substantially L shape. The connecting piece 27 is formed in a substantially plate shape and has a width dimension that substantially matches the width of the parting piece 22 described above. In FIG. 2A, reference numeral 27a denotes a convex portion formed by extruding in the plate thickness direction by doweling or the like, and the slot portion is formed in order to smoothly connect with the slot portion 28 described later. The long connecting piece 27 is formed in a predetermined thickness with a good balance while keeping the contact area at the time of fitting with 28 small.

  In addition, the above-described slot portion 28 is formed in the frame member 7 so as to be connectable to each other via the corner piece 26 described above. The slot portion 28 is a slot-like opening into which the connecting piece 27 can be fitted, and a band-like narrow piece 29 is bent between the parting piece 22 and the mounting piece 25 described above. It is formed using the narrow piece 29 and the parting piece 22. Specifically, the narrow piece 29 is formed outward from the upper end of the parting piece 22 in the orthogonal direction, and between the narrow piece 29 and the decorative piece 23 facing each other in this state, The protrusions 30 are erected so as to face each other with an interval corresponding to the plate thickness of the connecting piece 27. As shown in FIG. 2, the connecting piece 27 of the corner piece 26 is provided with a hexagonal through hole 27 b, and after inserting the connecting piece 27 into the slot portion 28 of the frame member 7, The portion overlapping with the through hole 27b is pressed from the inside to connect the adjacent frame members 7 and 7.

  Therefore, the ceiling inspection port A is configured in a rectangular frame shape that surrounds the four circumferences by the parting pieces 22 by sequentially connecting the ends of the frame member 7 in the orthogonal direction by the corner pieces 26. As shown in FIGS. 2 (b) and 5, the installation on the ceiling 1 is performed by opening an opening 2 having a size substantially matching the ceiling inspection port A between the field edges 31, 31 of the ceiling 1. The ceiling inspection port A is inserted into the interior from the inside, and then the wood screw 32 is screwed into the field edge 31 through the attachment piece 25. The decorative flange 21 is pressed against the ceiling 1 through the airtight member 12 and is screwed to the pair of field edges 31, 31 with the mounting pieces 25, 25 at the opposing positions, so that the ceiling inspection port A is connected to the ceiling 1. In addition, a high airtightness is secured between the opening 2 and the opening 2 in a fixed state.

  In this state, the ceiling 1 has an inspection opening 20 that is slightly smaller than the opening 2, and the lid 4 for opening and closing the inspection opening 20 uses the ceiling material 24. It is manufactured by site construction. For the ceiling material 24 as the material of the lid body 4, it is possible to divert the end material cut out when the above-described opening 2 is opened, and this end material is slightly larger than the width of the inspection opening 20. It can be obtained by adjusting the size to a larger extent. A cloth 33 is affixed to the surface of the ceiling material 24. When the size adjustment is performed, only the ceiling material 24 is cut, and the cloth 33 is left without being cut, so that the cloth jumps out from the periphery of the ceiling material 24. 3 is used to cover the periphery of the periphery, as shown in FIG. 3 (a), cover not only the interior surface of the ceiling material 24 but also the side edges and the periphery of the back surface with a cloth 33. It can be obtained as a body 4.

  In addition, in the above-described size adjustment, an area (hereinafter referred to as “ceiling”) that is substantially surrounded by the tip edge of the holding portion 6 formed on the two adjacent sides of the ceiling inspection port A and the remaining parting pieces 22 on the two sides. 3), the lid 4 is lowered from the ceiling back 3 so that it passes through the ceiling back side opening 34 as shown in FIG. 3 (a). The inspection opening 20 can be closed by the lid 4 by supporting the peripheral edge by the support 11. Furthermore, in this embodiment, the lid body 4 has an opening at the back of the ceiling, as shown in FIGS. 3B and 3C, at a normal position in which the center of the plane is aligned with the plane center of the ceiling back side opening 34. It is adjusted so that an appropriate clearance (C) is separated from the portion 34 over the entire circumference.

  In addition, since the inclined surface 10 is formed at the distal end portion of the holding piece 9 as described above, when the lid 4 is lowered from the ceiling back 3, when the peripheral edge comes into contact with the inclined surface 10, the inclined surface 10 is inclined. Guided by the surface 10 into the ceiling-side opening 34. Therefore, when the lid 4 is lowered from the ceiling 3, as shown in FIG. 3 (b), in addition to the clearance (C) described above, the plane dimension (A) of the inclined surface 10 is added from the normal position. Even if there is a misalignment, it can be absorbed and smoothly placed on the support portion 11.

  Furthermore, a second inclined surface 35 is also formed at the tip of the pressing portion 6. As shown in FIG. 3B, the second inclined surface 35 faces the indoor side opposite to the inclined surface 10 described above, and gradually approaches the pressing portion 6 toward the tip, that is, upward. Tilt toward. Therefore, the lid body 4 is guided by the second inclined surface 35 and the ceiling back 3 from above the support portion 11 even if there is a displacement from the normal position according to the planar dimension (B) of the second inclined surface 10. Can be lifted smoothly.

  In addition, the pressing part 6 described above, that is, the parting piece 22 on which the pressing piece 9 is formed, forms a gap (S) between the peripheral edge of the lid body 4 taking the normal position. Therefore, the lid body 4 can move horizontally in the normal position within the range (S) of the gap between each of the two edges and the parting piece 22. This plane movable dimension (S) is larger than the plane dimension (B) of the second inclined surface 35 described above. Therefore, the lid 4 is shifted from the normal position in the horizontal direction, so that the pressing piece 9 is Lifting is restricted due to interference. Further, the dimension (S) that can be moved in a plane is made smaller than the dimension of the support portion 11 protruding from the parting piece 22.

  Furthermore, since the holding pieces 9 are formed on the two adjacent sides of the ceiling inspection opening A, the lid body 4 can also move in the direction of the diagonal D passing through the intersection of the two sides. The two sets of pressing pieces 9 interfere simultaneously with the upper surface. The two sets of pressing pieces 9 formed on the two adjacent sides simultaneously interfere over substantially the entire length of the two adjacent sides of the rectangular plate-like lid body 4, and the lifting of the lid body 4 is extremely effective. To regulate. In other words, the lid 4 is restricted from being lifted at the three corners 5 included in the two sides by the pressing portion 6, so that the lid 4 can be rotated in the inclined direction around a specific side. Since at least one of the corner portions 5 is restricted from moving in the rotational direction, it does not rotate or tilt, and does not rattle significantly. Further, by restricting the rotation of the lid 4 on the rotation tip side, the holding piece 9 does not need to have a very high strength.

  Accordingly, in this embodiment, the diagonal direction D (see two in FIG. 4) from the normal position and the position (preparation for use) where the lid body 4 can be lifted up to the ceiling back 3 by the clearance (C) around the normal position. When it is slid toward the pressing portion 9 along the direction of the arrow of the dotted line, the edge of the two sides sinks below the pressing portion 6 beyond the formation range of the second inclined surface 35 (use position) ) Can be moved up to 4). As shown in FIG. 5 and FIG. 6A, this sliding operation can be performed until the edge of the lid 4 abuts against the parting piece 22 below the pressing portion 6, and in this state, as described above. The pressing part 6 is located above the two edge parts of the lid 4. For this reason. For example, when the above-described ceiling inspection opening A is installed in a highly airtight house, even if a force that pushes up the lid 4 by the pressure at the time of opening and closing the door works, the lid 4 does not float in this state.

  Further, as shown in FIG. 6 (b), in this state, the lid body 4 maintains a state in which the edge portion on the opposite side to the pressing portion 6 rides on the support portion 11, and thus the peripheral edge portion. Since the entire circumference is supported by the support part 11, the closed state of the inspection opening 20 is also maintained.

  Further, in this state, an airtight material 12 is disposed between the lid 4 and the support portion 11 over the entire circumference around the inspection opening 20, and is disposed between the decorative flange 21 and the ceiling 1. The airtightness of the room is enhanced in combination with the airtight material 12 described above. For this reason, the installation of the ceiling inspection port A does not reduce the high airtightness grade of the house.

  When opening the ceiling inspection port A, if the lid 4 is slid in the direction away from the presser 6 along the diagonal D direction, the lid 4 is pulled out from below the presser 6 and the ceiling back 3 It can be returned to a position where it can be lifted up. This sliding operation can be performed until the lid 4 comes into contact with the two sets of parting pieces 22 facing the two sets of pressing pieces 9 across the opening 34 on the back side of the ceiling. In this state, the lid is as described above. 4 can be lifted. After lifting the lid 4, if necessary, for example, if the lid 4 is inclined and one side of the rectangle is removed to the indoor side along the diagonal line D of the inspection opening 20, the inspection opening 20 The equipment on the ceiling 3 can be inspected. As described above, since the airtight member 12 having a large frictional resistance is used, the lid body 4 slides into a sloppy state due to vibration or the like, and shifts from an unopenable state to an openable state. There is no end to it.

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Opening 3 Ceiling back 4 Lid 5 Corner corner part 6 Holding part 7 (7A, 7B) Frame material 8 Supporting piece 9 Holding piece 10 Inclined surface 11 Bearing part 12 Airtight material D Diagonal line

Claims (4)

A ceiling inspection port that is fixed around the opening established on the ceiling and supports the lid placed in the back of the ceiling through the opening to close the opening,
The lid is supported so as to be movable back and forth between a use preparation position and a use position along a specific diagonal direction,
A ceiling inspection port formed with a pressing portion that is superposed on the upper surface in the vicinity of at least three corners of the lid as the movement from the use preparation position to the use position and restricts the amount of lifting. Two sets of two types of frame material having a predetermined cross-sectional shape are formed adjacent to each same type and formed into a rectangular frame shape,
Each frame member is formed with a support piece projecting in a flange shape on the inner peripheral edge in the frame state,
The ceiling inspection port according to claim 1, wherein each of the one type of frame member is formed with a pressing piece that is parallel to the support piece at a predetermined interval and that has a smaller overhang amount.   The ceiling inspection port according to claim 2, wherein an inclined surface is formed at a tip end portion of the pressing piece so as to abut against a peripheral edge of the lid moving toward the support piece and guide the lid to a use ready position.   The ceiling inspection port according to any one of claims 1 to 3, further comprising an airtight member interposed between a support portion for supporting the lid and the lid.

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