JP2014040709A - Frameless ceiling inspection hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frameless ceiling inspection hole in which an inspection hole formed on a ceiling surface of a house or the like or a cover member is prevented from standing out apparently and further, the cover member closing the inspection hole is prevented from falling easily, in a simple structure, when configuring the ceiling inspection hole in which the cover member is provided so as to be freely opened/closed over the inspection hole formed on the ceiling.SOLUTION: In a frameless ceiling inspection opening, a bottom face of a ruler frame along the inside of an opening of a ceiling surface and the ceiling surface are fixed while being matched to the same face, a top face part closing an inspection hole within the ruler frame is formed while protruding on a bottom face of a cover member, and a flange part formed around the cover member is locked to a top face of the ruler frame, thereby closing the inspection hole. The cover member is tilted in a diagonal direction of the opening on the ceiling surface, the cover member is formed in such a size as to be taken out downwards from an attic side through the opening, and a metal piece fixed to the top face of the ruler frame and a magnet sheet fixed to a bottom face of the flange part of the cover member are attracted to each other by a magnetic force, such that the cover member is fixed to the ruler frame while closing the inspection hole.

Description

  The present invention relates to a frameless ceiling inspection port in which an inspection port formed on a ceiling of a house or the like is opened and closed by a lid member.

  2. Description of the Related Art Conventionally, it has been practiced to form an inspection port in the ceiling of a house, etc., and to replace an air filter such as a ventilation unit provided on the back of the ceiling and inspect other facilities from the inspection port.

  This inspection port is opened when an operator performs inspection work, but under normal conditions, the inspection port must be closed with a lid member, and the lid member should be opened as necessary. It is necessary to make the structure that can.

  Here, patent document 1 is referred as a prior art regarding said ceiling inspection port. The ceiling inspection port of this document has a configuration in which a rectangular outer frame fixed to a ceiling opening of a ceiling surface and a lid member are provided inside an inner frame pivotally supported with respect to the outer frame. It is what you have.

  By the way, the above-mentioned ceiling inspection port has an appearance that the ceiling surface does not look good because the outer frame and the inner frame are exposed on the ceiling surface. Further, since the lid member is structured to rotate downward from the ceiling surface, the closed state of the lid member is fixed by fixing the outer frame and the inner frame with a lock.

  However, when the lock is released, the lid inside the inner frame turns downward at a stroke, so that the lid hits the head of the worker standing below and other dangerous situations. Will be invited. Further, when the house is vibrated or twisted due to the occurrence of an earthquake or the like, there is a possibility that the lock may be released and the lid member may open downward, so there is room for improvement in structure.

JP2011-219973A

  As described above, the present invention constitutes a ceiling inspection port in which a lid member is provided to be freely opened and closed at an inspection port formed on a ceiling of a house or the like. It is an object of the present invention to provide a frameless ceiling inspection port with a simple structure that is not conspicuous and does not easily drop the lid member that closes the inspection port.

  In order to achieve the above object, the frameless ceiling inspection port according to claim 1 of the present invention is a ceiling that is attached to the inspection port by dropping a lid member that closes the inspection port formed on the ceiling surface from the back side of the ceiling. At the inspection port, the bottom surface of the ruler frame along the inside of the opening on the ceiling surface and the ceiling surface are fixed so that they are flush with each other, and the bottom surface of the lid member closes the inspection port in the ruler frame. The inspection part can be closed by locking the hook part formed around the lid member to the upper surface of the ruler frame, and the lid member is tilted in the diagonal direction of the opening on the ceiling surface. Thus, the lid member is sized to be taken out from the back side of the ceiling through the opening, and the metal piece fixed to the upper surface of the ruler frame and the magnet sheet fixed to the lower surface of the collar portion of the lid member are magnetically connected to each other. Suck The lid member is fixed to the ruler frame with the inspection port closed, and the end of the cloth material adhering to the ceiling surface is wound inside the ruler frame, while the lid member is formed around the top surface portion of the ruler frame. An end portion of the cloth material adhered to the lower surface of the top surface portion is wound into the groove portion.

  According to the frameless ceiling inspection port of claim 2 of the present invention, the ruler frame is formed of synthetic resin in claim 1, and the craft paper is attached to the lower surface and the inner peripheral surface of the ruler frame. It is characterized in that the cloth material is attached to the ruler frame with a glue exclusively for cloth through paper.

  A frameless ceiling inspection port according to a third aspect of the present invention is the frameless ceiling inspection port according to the first or second aspect, wherein a number of small holes are formed as air vent holes in the surface of the top surface portion formed in the lid member, and the ceiling having the small holes is provided. A cross material is stuck on the surface of the surface portion.

  According to a fourth aspect of the present invention, the frameless ceiling inspection port according to the first, second, or third aspect is characterized in that a plurality of ribs are formed inside a top surface portion formed on the lid member.

  The frameless ceiling inspection port according to claim 5 of the present invention is the frameless ceiling inspection port according to claim 1, wherein one end of the string member is coupled to the inner side of the lid member, and the other end of the string member is connected to the back of the ceiling. It is characterized by being fixed to the member.

  According to the frameless ceiling inspection port of the present invention, the lid member that closes the inspection port formed on the ceiling surface is dropped from the back side of the ceiling so that the collar portion formed around the lid member is locked to the upper surface of the ruler frame. It is possible to close the inspection port.

  In addition, when the lid member is attached to the inspection port as described above, the lower surface of the ceiling surface and the ruler frame are flush with each other, and the lower surface of the ruler frame and the top surface of the lid member are flush with each other. Match. For this reason, in the state where the cloth material is attached to the ceiling surface and the lower surface of the lid member, only the boundary line around the lid member appears on the ceiling surface, and the lid member is attached in a state that is hardly noticeable in appearance. A frameless ceiling inspection port can be formed.

  In the above configuration, the lid member can be fixed to the ruler frame by attracting the metal piece fixed to the upper surface of the ruler frame and the magnet sheet fixed to the lower surface of the lid part of the lid member with a magnetic force. is there. Therefore, even when the indoor air pressure changes due to opening and closing of the door, etc., the lid member is not detached from the opening and lifted upward, and the lid member is attached without being conspicuous on the ceiling surface. It can be maintained continuously.

  Further, according to the present invention, in order to take out the lid member attached as described above to the indoor side, the lid member is inclined from the ceiling back side by tilting the lid member in the diagonal direction of the opening on the ceiling surface. After that, it can be taken out downward.

  Further, in the above configuration, the end of the cloth material attached to the lower surface of the top surface portion in the groove portion formed around the top surface portion of the lid member while the end portion of the cloth material attached to the ceiling surface is wound around the inner portion of the ruler frame. Try to involve the part. As a result, the end of the cloth material is not easily detached, and the lid member is attached to the inspection port provided on the ceiling surface in a state where the appearance is hardly noticeable as described above. Is possible.

  Further, when a ruler frame is formed of a synthetic resin and a cloth material is adhered to the ruler frame, an ordinary cloth-specific glue has a weak adhesion and is easily peeled off. However, according to claim 2 of the present invention, by attaching kraft paper to the lower surface and the inner peripheral surface of the ruler frame, it becomes possible to easily and firmly adhere the cloth material to the ruler frame with the cloth paste. .

  According to claim 3 of the present invention, a large number of small holes are formed as air vent holes in the surface of the top surface portion formed in the lid member, and the cloth material is adhered on the surface of the top surface portion having the small holes. Thus, the air interposed between the cloth material and the top surface can be extracted from the small hole. As a result, the cloth material affixed on the surface of the top surface can be quickly affixed, and the surface becomes smooth and has a beautiful finish.

  According to claim 4 of the present invention, since the plurality of ribs are formed inside the top surface portion formed on the lid member, the structure of the lid member can be formed with light weight and high strength.

  Furthermore, according to claim 5 of the present invention, one end of the string member is coupled to the inside of the lid member, and the other end of the string member is fixed to the member on the back of the ceiling. As a result, even when the lid member falls when the lid member is taken out below the inspection port, the lid member can be suspended from the ceiling within the range of the length of the string member. It is possible to ensure safety without falling on the floor surface.

It is a perspective view which shows the state which lifted the cover member upward from the inspection port in the Example of this invention. It is a perspective view which shows the state which dropped the cover member in the inspection port in the Example of this invention. It is a perspective view which shows the condition which made the cover member incline in the diagonal direction of an inspection port, and was made to pass the downward direction of an inspection port in the Example of this invention. It is a perspective view which shows the state which looked at the inspection port in the Example of this invention from the downward direction of the ceiling surface. (A) is a perspective view which shows the state which orient | assigned the ceiling surface side of the cover member in the Example of this invention upwards, (b) is the ceiling back side of a cover member upside down by inverting this cover member up and down It is a perspective view which shows the state which faced. (A) is a top view which shows the ruler frame which comprises the inspection port in the Example of this invention, (b) is a side view, (c) is an enlarged view of the edge part shown by A of (b). FIG. 2 is a sectional view showing an end face of a member constituting the ruler frame, and FIG. (A) is the top view which looked at the cover member in the Example of this invention from the ceiling surface side, (b) is the top view which looked at the cover member from the ceiling back side, (c) is sectional drawing of a cover member (D) is a partially enlarged view of an end portion indicated by B in (c). (A) is sectional drawing which shows the state which dropped the cover member in the Example of this invention into the inspection opening, (b) is sectional drawing which shows the state which lifted the cover member upward from the inspection opening.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 3, the frameless ceiling inspection port according to the present embodiment is provided in the inspection port 2 by dropping a lid member 3 that closes the inspection port 2 formed on the ceiling surface 1 of a house or the like from the back side of the ceiling. It is intended to be installed.

  1 to 3 are perspective views of the inspection port 2 according to the present embodiment as seen from the back of the ceiling. The ceiling material 5 fixed to the ceiling material mounting bracket 4 with screws 4a (see FIG. 8) is used for gypsum board or the like. This shows a situation in which a square inspection port 2 is formed on the ceiling surface 1.

  FIG. 1 shows a situation where the lid member 3 is lifted above the inspection port 2. As shown in FIG. 2, the lid member 3 is configured to close the inspection port 2 from above by being dropped into the inspection port 2 from above the ceiling. Further, as shown in FIG. 3, the inspection port 2 can be opened by pushing the lid member 3 upward, and the lid member 3 is lifted and tilted in the diagonal direction of the inspection port 2 to open the lid. The member 3 can be taken out from the inspection port 2 by passing downward.

  As shown in FIG. 2, when the lid member 3 is attached to the inspection port 2 and the inspection port 2 is closed, as shown in FIG. 4, when the ceiling surface 1 is viewed upward from the indoor side, The ceiling surface 1 can only see the boundary line 6 between the lid member 3 and the inspection port 2, and the frame member may appear to be exposed around the lid member and the inspection port like a conventional inspection port. Absent.

  Here, the inspection port 2 will be described in detail. As shown in FIG. 1 to FIG. 3 or FIG. 6 (d), an opening 7 is formed by cutting a ceiling material 5 such as a gypsum board fixed to the ceiling material mounting bracket 4, and the inner periphery of the opening 7 The ruler frame 8 is fixed to. An opening formed inside the ruler frame 8 is used as the inspection port 2.

  Further, as shown in FIG. 6 (a), the ruler frame 8 is fixed with a long plate member 8a arranged on four sides by a resin material such as polystyrene resin having the same thickness as that of the ceiling material 5. A ruler frame 8 having four sides of a square is formed by fixing the ends of the member 8a with a U-shaped fixing needle 8b.

  In this embodiment, as shown in FIGS. 6B, 6C, and 6D, the kraft paper 9 is attached to the lower surface and the inner peripheral surface of the ruler frame 8 on the ceiling surface 1 side. Yes. With such a configuration, even when the ruler frame 8 is made of a material such as polystyrene resin that does not easily adhere to the cloth exclusive cloth, the kraft paper 9 is previously bonded to the ruler frame 8 with a predetermined adhesive. It is good to keep. As a result, the cloth member 10 provided on the ceiling surface 1 side can be easily and firmly attached to the ruler frame 8 by using the cloth paste.

  In the above configuration, as shown in FIGS. 6B and 6C, the end of the cloth member 10 attached to the ceiling surface 1 is wound inside the ruler frame 8, resulting in a beautiful finish. It is possible to prevent the end of the cloth member 10 from being detached.

  On the other hand, as shown in FIGS. 7A and 7B, the lid member 3 is formed in a square shape in plan view, and is large enough to block the inspection port 2 in the ruler frame 8 on the inner lower surface of the lid member 3. The square top surface portion 3a is formed so as to protrude.

  Moreover, as shown in FIG.7 (b), many small holes 11 are formed in the surface of the top | upper surface part 3a of the cover member 3 as an air vent hole. When the cross material 10 is stuck on the surface of the top surface portion 3a, the small holes 11 can extract the air interposed between the cross material 10 and the surface of the top surface portion 3a from the small holes 11. As a result, the cloth material 10 affixed on the surface of the top surface portion 3a can be affixed quickly, and it becomes a smooth surface with a beautiful finish.

  Further, as shown in FIG. 5A or FIG. 7D, a groove 12 is formed around the top surface portion 3 a of the lid member 3, and the cloth material 10 attached to the lower surface of the top surface portion 3 a of the lid member 3. By winding the end portion of the cross member 10 into the groove portion 12, it is possible to finish the adhesion of the cross member 10 neatly, and the cross member 10 is difficult to peel off from the end portion.

  In addition, as shown in FIGS. 1 to 3, FIG. 5 (b), or FIG. 7 (b), the lid member 3 has a plurality of ribs 13 formed inside the top surface portion 3 a, and the lid member 3. Is constructed in a lightweight and high-strength structure.

  Further, as shown in FIGS. 1 to 3, one end of the string member 14 is coupled to the inside of the lid member 3, and the other end of the string member 14 is screwed into, for example, the ceiling material mounting bracket 4 as a member on the back of the ceiling. The structure is fixed to the screw 15. As a result, even when the lid member 3 falls when the lid member 3 is taken out below the inspection port 2, the lid member 3 can be suspended from the ceiling within the range of the length of the string member 14. It is possible to take safety measures.

  In the above configuration, the lid member 3 is tilted in the diagonal direction of the opening portion 7 formed on the ceiling surface 1 so that the lid member 3 is taken out from the back side of the ceiling through the opening portion 7. In order to realize this, it is necessary to form the maximum outer diameter of the lid member 3 smaller than the diagonal length of the opening 7.

  Further, in the present embodiment, the inspection port 2 is closed by adsorbing the metal piece 17 fixed to the upper surface of the ruler frame 8 and the magnet sheet 16 fixed to the lower surface of the flange portion 3b of the lid member 3 by magnetic force. In this state, the lid member 3 is fixed to the ruler frame 8. In this embodiment, the metal piece 17 is fixed to the ruler frame 8 and the magnet sheet 16 is fixed to the flange 3b of the lid member 3. Conversely, the magnet sheet 16 is fixed to the ruler frame 8. Even when the metal piece 17 is fixed to the flange 3b of the lid member 3, the same effect can be obtained.

  In any case, the lid member 3 is attracted by the magnetic force to the ruler frame 8 on the ceiling side even when a change occurs in the indoor air pressure due to the opening and closing of the door of the house, etc. due to the above configuration. Does not leave the inspection port 2 and is lifted upward.

  The frameless ceiling inspection port according to the present embodiment drops the lid member 3 that closes the inspection port 2 formed on the ceiling surface 1 from the back of the ceiling as shown in FIG. 1, FIG. 2, or FIG. Thus, the inspection port 2 can be closed by locking the flange portion 3 b formed around the lid member 3 to the upper surface of the ruler frame 8.

  At this time, as shown in FIGS. 8A and 8B, the bottom surface of the ceiling surface 1 and the ruler frame 8 coincide with each other in a state where the lid member 3 is attached to the inspection port 2, and the ruler The lower surfaces of the frame 8 and the top surface portion 3a of the lid member 3 are flush with each other. For this reason, in a state where the cloth material 10 is adhered to the ceiling surface 1 and the lower surface of the lid member 3, only the boundary line 6 around the lid member 3 appears on the ceiling surface 1, and the appearance is hardly noticeable. Thus, it is possible to form the ceiling inspection port 2 to which the lid member 3 is attached.

  The frameless ceiling inspection port according to the present invention constitutes a ceiling inspection port in which a cover member is provided so as to be openable and closable at an inspection port formed on a ceiling of a house or the like. It can be used as a frameless ceiling inspection port that has a simple structure that is not conspicuous in appearance and does not easily drop the lid member that closes the inspection port.

DESCRIPTION OF SYMBOLS 1 Ceiling surface 2 Inspection port 3 Lid member 3a Top surface part 3b Eaves part 4 Ceiling material mounting bracket 4a Screw 5 Ceiling material 6 Boundary line 7 Opening part 8 Ruler frame 8a Plate member 8b Fixed needle 9 Kraft paper 10 Cross material 11 Small hole 12 Groove part 13 Rib 14 String member 15 Screw 16 Magnet sheet 17 Metal piece A End of ruler frame B End of lid member

Claims (5)

In the ceiling inspection port that is attached to the inspection port by dropping a lid member that closes the inspection port formed on the ceiling surface from the back side of the ceiling,
The bottom surface of the ruler frame along the inside of the opening on the ceiling surface is fixed to the same surface, and the top surface that closes the inspection port in the ruler frame is formed on the bottom surface of the lid member. In addition, the inspection port can be closed by locking the collar formed around the lid member to the upper surface of the ruler frame, and this lid can be formed by tilting the lid member in the diagonal direction of the opening on the ceiling surface. By sizing the member from the back side of the ceiling through the opening, and by adsorbing the metal piece fixed on the upper surface of the ruler frame and the magnet sheet fixed on the lower surface of the collar part of the lid member by magnetic force. The lid member is fixed to the ruler frame with the inspection port closed, and the end of the cloth material adhering to the ceiling surface is wound inside the ruler frame, while the ceiling member is placed in the groove formed around the top surface portion of the lid member. Cloth attached to the lower surface of the surface Frameless ceiling access door, characterized in that it has to involve the ends of the. The ruler frame is made of synthetic resin, and the craft paper is attached to the lower and inner peripheral surfaces of the ruler frame, so that the cloth material is attached to the ruler frame with the cloth paste via this craft paper. The frameless ceiling inspection port according to claim 1, wherein 3. A large number of small holes are formed as air vent holes in the surface of the top surface portion formed in the lid member, and a cloth material is stuck on the surface of the top surface portion having the small holes. Frameless ceiling inspection port. 4. The frameless ceiling inspection port according to claim 1, wherein a plurality of ribs are formed inside a top surface portion formed in the lid member. 5. The frameless ceiling inspection according to claim 1, wherein one end of the string member is coupled to the inside of the lid member, and the other end of the string member is fixed to a member on the back of the ceiling. mouth.