JP2007146394A - External frame mounting structure of ceiling inspection hole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external frame mounting structure of a ceiling inspection hole which is reduced in part count, facilitates the mounting of an external frame, and is improved in strength. <P>SOLUTION: The external frame has a slit 7 formed at the side wall 6 thereof and extending in the vertical direction, and a flange 8 bent from the top of the side wall. A hanger 10 is formed of: hanging members 11 formed by bending a single wire spring member at both ends thereof like hooks for abutting on and engaging with the upper surface of a mounting member 1a mounted on a ceiling joist; vertical portions 12 each extending downward from the proximal side of the hanging portions; a pair of right and left engaging shoulders 13 for engaging with the flange of the external frame; and deformable arms 14 each connected to lower edges of the engaging shoulder and the vertical portion, and urging an elastic force between the hanging portion and the engaging shoulder. Then while the hanging portion and the vertical portion of the hanger are inserted into the slit formed at the external frame to abut on and engage with the hanging portions with the upper portion of the ceiling joist, the deformable arms are deformed and at the same time the engaging shoulders are engaged with the flange of the external frame, to thereby fix the external frame into the opening section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an outer frame mounting structure in a ceiling inspection port.

  In general, this type of ceiling inspection port has a rectangular outer frame attached to an opening provided in the ceiling of a building, an inner frame that can be freely opened and closed in the outer frame, and an inner side of the inner frame. It is mainly comprised by the panel body arrange | positioned. In order to attach this ceiling inspection port, a method is known in which an outer frame is attached to an opening provided in the ceiling using an attachment fitting (see, for example, Patent Document 1).

  In the structure for attaching the outer frame using the mounting bracket, as shown in FIG. 7, the mounting bracket a is formed in the top plate portion c by bending the top portion of the upright plate portion b into a bowl shape. In the middle of the lower end of b and the top plate portion c, protruding plate-like locking portions g and h that can be fitted into the upper and lower fitting grooves e and f of the outer frame d are provided, and a hanger bolt is attached to the tip of the bowl-shaped top plate portion c. i is screwed up and down.

In order to attach the outer frame d using the mounting bracket a configured as described above, the top surface of the bottom plate portion d1 of the outer frame a is fitted into the ceiling opening D along the ceiling panel A, and the ceiling panel A is attached. The edge of the hanger bolt i is brought into contact with the stopped edge material B or the mounting channel C fixed to the edge material B, and the periphery of the ceiling opening is sandwiched between the hanger bolt i and the bottom plate part d1 of the outer frame d. The ceiling inspection opening can be formed by fixing the outer frame d to the ceiling opening D and using the inner frame k on which the panel plate j is mounted as an opening / closing door.
JP 2000-120259 A (Claims, paragraph numbers 0016, 0023, FIG. 2)

  However, in the structure described in Japanese Patent Application Laid-Open No. 2000-120259, there are many components, and the height adjustment by the hanger bolt is performed to match the finished surface of the ceiling and the ceiling inspection port. There was a problem that adjustment etc. was troublesome.

  The present invention has been made in view of the above circumstances, and provides an attachment structure for an outer frame in a ceiling inspection opening that can reduce the number of components, facilitate attachment, and improve strength. Is an issue.

  In order to solve the above-described problems, an outer frame mounting structure in a ceiling inspection port according to the present invention includes a rectangular outer frame that is attached to an opening provided in a ceiling of a building using a lifting tool, and an inner frame of the outer frame. In the ceiling inspection port comprising an inner frame that can be freely opened and closed and a panel body that is disposed on the inner side of the inner frame, the outer frame is a vertical hole that is drilled in a side wall portion of the outer frame. A slit extending in the direction, and a flange portion bent from the top of the side wall portion, and the above-mentioned suspension tool is formed by bending one linear spring member, and both end portions of the linear spring member And a vertical portion extending downward from the base end side of the suspension portion, the suspension portion being formed in a bowl shape and abutting and engaging the upper surface of the mounting member placed on the ceiling base material. A pair of left and right engaging shoulders that engage with the flange portion of the outer frame; and And a deformable arm portion that is connected to the lower end side and promotes a resilient force between the suspension portion and the engagement shoulder portion, and the suspension portion and the vertical portion of the suspension device are slit in the outer frame. In a state where the suspension portion is in contact with and engaged with the upper surface of the mounting member, the engaging shoulder portion is engaged with the flange portion of the outer frame while the deforming arm portion is deformed. Is fixed to the opening (claim 1).

  In the present invention, a connecting fulcrum portion connecting the lower end of the upper portion connecting the pair of left and right deformable arm portions to the engaging shoulder portion and the lower portion connecting to the lower end side of the vertical portion is respectively the engaging shoulder. It is preferable that they are provided at positions separated from each other on the left and right sides of the part.

  Moreover, it is preferable to form the said suspension part in the downward inclination shape toward the front-end | tip (Claim 3).

  Moreover, it is preferable to form the lower connection part which connects the said vertical part and a deformation | transformation arm part in the uphill shape toward the vertical part side (Claim 4).

  Further, it is preferable to provide a difference in the height of the left and right suspension parts (claim 5).

  In addition, it is preferable to form a bending part for pushing substitute projecting on the opposite side to the outer frame side at an intermediate portion of the upper connecting part that connects the left and right engaging shoulders (Claim 6).

  Since the outer frame mounting structure in the ceiling inspection port of the present invention is configured as described above, the following effects can be obtained.

  (1) According to the invention described in claim 1, the outer frame includes a vertically extending slit formed in the side wall portion of the outer frame, and a flange portion bent from the top of the side wall portion. The suspension fixture to which the outer frame is attached is formed by bending one linear spring member, is formed in a hook shape at both ends of the linear spring member, and is placed on the base material of the ceiling. A suspension portion that abuts and engages the upper surface of the mounting member, a vertical portion that extends downward from the proximal end side of the suspension portion, and a pair of left and right engagement shoulder portions that engage with the flange portion of the outer frame; The suspension portion of the suspension tool is provided with a deformable arm portion that is connected to the lower end side of the engagement shoulder portion and the vertical portion and promotes a resilient force between the suspension portion and the engagement shoulder portion. In addition, the outer frame can be temporarily fixed in a state where the vertical portion is inserted into the slit of the outer frame and the suspension portion is in contact with and engaged with the upper surface of the field edge. In this temporarily fixed state, the outer shoulder can be fixed to the opening by engaging the engaging shoulder with the flange of the outer frame while deforming the deformable arm. Therefore, the number of constituent members can be reduced and the outer frame can be easily and reliably fixed to the opening of the ceiling.

  In addition, since the vertical portion is constrained by the slit, the deformation of the deformable arm portion can promote a resilient force between the suspension portion and the engagement shoulder portion. Correspondingly, the outer frame can be fixed to the opening.

  (2) According to the invention described in claim 2, the connecting fulcrum for connecting the lower end of the upper part connecting the pair of left and right deformable arm parts to the engaging shoulder part and the lower part connecting to the lower end side of the vertical part. In addition to the above (1), in addition to the above (1), the moment is further increased and the deformation is facilitated because the portions are provided at positions separated from each other on the left and right sides from the engagement shoulder. At the same time, it is possible to give strength to the hanging tool.

  (3) According to the invention described in claim 3, by forming the suspension part downwardly inclined toward the tip, even if the suspension part is bent, the tip is surely brought into contact with the upper surface of the mounting member. Since it can engage, in addition to said (1) and (2), an outer frame can be suspended and fixed more reliably.

  (4) According to the invention described in claim 4, by forming the lower connecting portion for connecting the vertical portion and the deformable arm portion so as to be inclined upward toward the vertical portion side, the suspension tool is elastically deformed. When engaging the engagement shoulder portion with the flange portion of the outer frame, it is possible to avoid the suspension tool from interfering with the edge portion of the ceiling panel. Therefore, in addition to the above (1) to (3), the outer frame can be more securely suspended and fixed.

  (5) According to the invention described in claim 5, by providing a difference in the height of the left and right suspension parts, the suspension tool is elastically deformed to engage the engagement shoulder part with the flange part of the outer frame. At this time, it is possible to prevent the two vertical portions from being displaced in an intersecting manner and interfering with each other. Therefore, in addition to the above (1) to (4), the suspension tool can be further easily deformed, and the outer frame can be reliably suspended and fixed.

  (6) According to the invention described in claim 6, by forming a bending part for pushing substitute projecting on the opposite side to the outer frame side at an intermediate portion of the upper connecting part for connecting the left and right engaging shoulders. The bent shoulder portion can be pressed against the outer frame side to easily engage the engaging shoulder portion with the flange portion of the outer frame. Therefore, in addition to the above (1) to (5), the outer frame can be easily and reliably attached.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a plan view (a) showing a main part of a mounting portion of a ceiling inspection opening to which an outer frame mounting structure according to the present invention is applied, a cross-sectional view (b) taken along line II of FIG. It is an II-II arrow line view (c) of b).

  As shown in FIG. 1, the ceiling inspection port includes a rectangular outer frame 3 that is attached to an opening 2 provided in a ceiling 1 of a building using a lifting tool 10, and can be freely opened and closed within the outer frame 3. An inner frame 4 to be attached and a panel body 5 disposed on the inner side of the inner frame 4 are provided. The ceiling 1 is composed of a field edge 1c, which is a base material framed in a lattice shape, and a ceiling panel 1b attached by the field edge 1c. A channel-shaped mounting member 1a having a dimension slightly longer than one side of the outer frame 3 is placed on the opposite side edge 1c of the opening 2 provided in a part of the ceiling 1, and is suspended from these mounting members 1a. The outer frame 3 is attached using the holding metal fitting 10.

  In this case, as shown in FIGS. 1 and 3, the outer frame 3 includes slits 7 extending in the vertical direction that are formed in appropriate positions of the opposite side wall portions 6, for example, two left and right sides of the side wall portions 6 on one side, A flange portion 8 that is bent in a substantially horizontal L shape from the top of the side wall portion 6 to the inner side of the outer frame 3 is provided. The outer frame 3 includes a horizontal piece 9 that extends from the lower end of the side wall portion 6 in the inner and outer directions of the outer frame 3. The outer frame 3 configured in this manner is formed by assembling four outer frame members 3a formed of an extruded shape made of, for example, an aluminum alloy into a rectangular shape, and corners thereof by corner fittings (not shown). Concatenated.

  On the other hand, as shown in FIGS. 1 to 3, the lifting tool 10 is formed by bending one linear spring member, and is formed in a hook shape at both ends of the linear spring member. A suspension part 11 that abuts and engages with the upper surface of the mounting member 1a placed on the field edge 1c of the ceiling 1, a vertical part 12 that extends downward from the base end side of the suspension part 11, and an outer A pair of left and right engaging shoulders 13 that engage with the flange portion 8 of the frame 3 are connected to the lower end sides of the engaging shoulder 13 and the vertical portion 12, and the suspension portion 11 and the engaging shoulder portion 13 And a deformable arm portion 14 that promotes a resilient force.

  Further, the pair of left and right deformable arm portions 14 are respectively provided with connecting fulcrum portions 14c that connect the lower end of the upper portion 14a connected to the engaging shoulder portion 13 and the lower portion 14b connected to the lower end side of the vertical portion 12. They are provided at positions spaced apart from each other on the left and right sides from the joint shoulder 13. In this way, the connecting fulcrum portion 14c that connects the lower end of the upper portion 14a that is connected to the engaging shoulder portion 13 and the lower portion 14b that is connected to the lower end side of the vertical portion 12 is formed on the left and right outer sides of the engaging shoulder portion 13. By providing them at positions that are separated from each other, it is possible to increase the moment when the deformable arm portion 14 is deformed, to facilitate the deformation, and to give the suspension 10 strength.

  Moreover, the said suspension part 11 is formed in the downward inclination shape toward the front-end | tip, for example, 25 degrees with respect to a perpendicular line, and even if the suspension part 11 bends, a front-end | tip part is reliably made into the upper surface of the attachment member 1a. Abutment engagement is possible.

  Further, the lower connecting portion 15 that connects the vertical portion 12 and the deformable arm portion 14 is formed in an upward inclined shape toward the vertical portion 12 side, for example, 45 ° with respect to the vertical line. When the engaging shoulder 13 is engaged with the flange portion 8 of the outer frame 3 by elastic deformation, it is possible to avoid the suspension tool 10 from interfering with the edge of the ceiling panel 1b.

  Further, as shown in FIG. 2C, the left and right suspension parts 11 are provided with a difference α in height. Thus, by providing the difference α between the heights of the left and right suspension parts 11, when the suspension tool 10 is elastically deformed and the engagement shoulder 13 is engaged with the flange part 8 of the outer frame 3, Since it is possible to prevent the vertical portions 12 from being displaced in an intersecting manner and interfering with each other, it is possible to facilitate the deformation of the lifting tool 10 and to securely hold and fix the outer frame 3. .

  Further, a bending portion 17 for pushing substitute projecting substantially in a letter shape is formed on the opposite side of the outer frame 3 side at an intermediate portion of the upper connecting portion 16 that connects the left and right engaging shoulder portions 13. Yes. In this way, by forming the bending portion 17 for pushing substitute projecting on the opposite side to the outer frame 3 side at the intermediate portion of the upper connecting portion 16 that connects the left and right engaging shoulder portions 13, The engagement shoulder 13 can be easily engaged with the flange portion 8 of the outer frame 3 by pressing against the outer frame 3 side. Therefore, it is possible to easily and reliably attach the outer frame 3.

  Next, a procedure for attaching the outer frame 3 will be described with reference to FIGS.

  First, as shown in FIG. 4, the suspension portion 11 and the vertical portion 12 of the suspension tool 10 are inserted through the slit 7 provided in the outer frame 3.

  Next, as shown in FIG. 5, the outer frame 3 is temporarily fixed in a state where the suspension portion 11 is in contact with and engaged with the upper surface of the mounting member 1 a placed on the field edge 1 c of the ceiling 1. At this time, the suspension portion 11 and the vertical portion 12 of the suspension tool 10 are inserted into the two slits 7 provided on one side wall portion 6 of the two opposing sides of the outer frame 3, thereby 11 is in contact with and engaged with the upper surface of the mounting member 1a, and the suspension portion 11 and the vertical portion 12 of the suspension tool 10 are inserted into the two slits 7 provided on the other side wall portion 6 to suspend the suspension. The holding part 11 is brought into contact with and engaged with the upper surface of the mounting member 1a to temporarily fix the outer frame 3. Therefore, the operator does not need to work while supporting the outer frame 3 in a horizontal state as in the case of using a conventional mounting bracket, and can easily temporarily fix the outer frame 3.

  With the outer frame 3 temporarily fixed as described above, as shown in FIG. 5, the upper shoulder portion 14 a and the lower portion 14 b of the deformable arm portion 14 are deformed in the proximity direction and the engaging shoulder portion 13 is moved to the outer frame 3. After the engagement with the flange portion 8, the pressing of the upper portion 14 a and the lower portion 14 b of the deformable arm portion 14 in the proximity direction is released, and the outer frame 3 is fixed to the opening portion 2 by the elastic force of the deformable arm portion 14. Is done. At this time, if the bent portion 17 for pushing is pressed against the outer frame 3 side, the engagement shoulder 13 can be easily engaged with the flange portion 8 of the outer frame 3.

  Further, since the vertical portion 12 is constrained by the slit 7, the elastic force can be urged between the suspension portion 11 and the engagement shoulder portion 13 by the deformation of the deformable arm portion 14, so The outer frame 3 can be reliably fixed to the opening 2 corresponding to the thickness, the edge 1c, and the height of the mounting member 1a.

The top view (a) which shows the principal part of the attachment part of the ceiling inspection opening which applied the attachment structure of the outer frame which concerns on this invention, Sectional drawing (b) and II of (b) along the II line of (a) It is -II arrow line view (c). It is a top view (a), a front view (b), and a side view (c) of the hanging tool in this invention. It is a perspective view which shows the hanging tool and outer frame in this invention. It is a perspective view which shows the state which inserts the said holding tool in the slit of the said outer frame, and attaches it to an opening part. It is a perspective view which shows the temporary fix | stop state of the said outer frame. It is a perspective view which shows the attachment state of the said outer frame. It is sectional drawing which shows the attachment state of the conventional ceiling inspection opening.

Explanation of symbols

1 Ceiling 1a Mounting member 1b Ceiling panel 1c Field edge (ceiling base material)
2 Opening portion 3 Outer frame 4 Inner frame 5 Panel body 6 Side wall portion 7 Slit 8 Flange portion 10 Suspension tool 11 Suspension portion 12 Vertical portion 13 Engaging shoulder portion 14 Deformation arm portion 14a Upper portion 14b Lower portion 14c Connection fulcrum portion 15 Lower connection part 16 Upper connection part 17 Pushing substitute bending part

Claims (6)

A rectangular outer frame that is attached to an opening provided on the ceiling of the building by using a lifting tool, an inner frame that can be freely opened and closed within the outer frame, and an inner side of the inner frame. In the ceiling inspection opening equipped with a panel body,
The outer frame includes a vertically extending slit formed in a side wall portion of the outer frame, and a flange portion bent from the top of the side wall portion,
The suspension tool is formed by bending a single linear spring member, and is formed in a hook shape at both ends of the linear spring member and mounted on the ceiling base material. A suspension portion that abuts and engages with the upper surface of the upper portion, a vertical portion that extends downward from the base end side of the suspension portion, and a pair of left and right engagement shoulder portions that engage with the flange portion of the outer frame, It is connected to the lower end side of the engagement shoulder and the vertical portion, and includes a deformable arm portion that promotes elasticity between the suspension portion and the engagement shoulder portion,
With the suspension part and the vertical part of the suspension tool inserted through the slit of the outer frame and the suspension part being in contact with and engaging with the upper surface of the mounting member, the deformation arm part is deformed and the engagement part is deformed. A structure for mounting an outer frame in a ceiling inspection port, wherein a joint portion is engaged with a flange portion of the outer frame, and the outer frame is fixed to the opening. In the mounting structure of the outer frame in the ceiling inspection port according to claim 1,
The pair of left and right deformable arm portions have a connecting fulcrum portion connecting the lower end of the upper portion connected to the engaging shoulder portion and the lower portion connected to the lower end side of the vertical portion, respectively. A mounting structure for an outer frame in a ceiling inspection port, which is provided at positions spaced apart from each other. In the outer frame mounting structure in the ceiling inspection port according to claim 1 or 2,
The mounting structure of the outer frame in the ceiling inspection port, wherein the suspension part is formed in a downward inclined shape toward the tip. In the mounting structure of the outer frame in the ceiling inspection port according to any one of claims 1 to 3,
A structure for mounting an outer frame in a ceiling inspection port, wherein a lower connecting portion that connects the vertical portion and the deformable arm portion is formed in an upward inclined shape toward the vertical portion side. In the mounting structure of the outer frame in the ceiling inspection port according to any one of claims 1 to 4,
The mounting structure of the outer frame in the ceiling inspection port, wherein the left and right suspension parts are provided with a difference in height. In the mounting structure of the outer frame in the ceiling inspection port according to any one of claims 1 to 5,
An outer frame in a ceiling inspection port, characterized in that a bending portion for pushing substitute projecting to the side opposite to the outer frame side is formed at an intermediate portion of the upper connecting portion that connects the left and right engaging shoulders. Mounting structure.

Images