JP2007186973A - Panel body mounting structure in ceiling access hole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel body mounting structure in a ceiling access hole for facilitating panel body mounting work and improving mounting strength between an inner frame and a panel body. <P>SOLUTION: The panel body mounting structure comprises a vertically extending slit 42 provided in a sidewall part 41 of the inner frame 4; an upper flange part 43 bent from the top part of the sidewall part; and a lower flange part 44 bent from the lower part of the sidewall part. A fixture 5A formed by bending one linear spring member comprises a presser part 51 formed in hook shape at one end of the linear spring member and engaged abutting on the upper face of the panel body 6; an engaging shoulder part 52 engaged with the upper flange part; and a deformed arm part 54 connected to the engaging shoulder part and the base end of the presser part and urging spring force between the presser part and the engaging shoulder part. The presser part of the fixture is inserted through the slit of the inner frame from the outside and engaged abutting on the upper face of the panel body. In this state, the engaging shoulder part is engaged with the upper flange part of the inner frame while deforming the deformed arm part to fix the panel body to the inner frame. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a panel body 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 the panel body to the inner frame at the ceiling inspection port, a method of attaching the panel body to the opening provided in the inner frame using a pressing tool is known (for example, see Patent Document 1).

  In the structure in which the panel body is attached using the presser, as shown in FIG. 11, the presser a includes a bent part b that bends in a U-shape, and a bent part from one end of the bent part b. a lower pressing portion c that is bent in a direction orthogonal to b, and an upper pressing portion d that is bent from the other end of the bending portion b so as to be parallel to the lower pressing portion c. Yes.

In order to attach the panel body f to the inner frame e using the pressing tool a configured as described above, the bent portion b of the pressing tool a is placed with the panel body f placed on the bottom surface of the inner frame e. Is housed in the lower fitting groove g of the inner frame e, the lower pressing part c is attached to the upper surface of the panel body f, and the upper part of the bent part b is housed in the upper fitting groove h. Thus, the panel body f is attached to the inner frame e by pressing the panel body f onto the bottom surface portion of the inner frame e by the biasing force of the spring of the pressing tool a.
JP 2000-120259 A (Claims, paragraph numbers 0018, 0019, FIG. 2)

  However, in the structure described in Japanese Patent Application Laid-Open No. 2000-120259, the pressing tool is installed inside the inner frame. Therefore, when the panel body is thick, the pressing tool is installed inside the inner frame. It was difficult to do this, and there was a problem that it took time to install the panel body. Further, since the lower pressing portion of the pressing tool is attached to the panel body and pressed against the panel body, there is a problem that the panel body moves relative to the inner frame.

  The present invention has been made in view of the above circumstances, and facilitates the mounting operation of the panel body, and the mounting structure of the panel body at the ceiling inspection opening that can improve the mounting strength between the inner frame and the panel body. It is a problem to provide.

  In order to solve the above-mentioned problems, a first aspect of the present invention provides a rectangular outer frame attached to an opening provided in a ceiling of a building, an inner frame attached to the outer frame so as to be opened and closed, and the inner frame. A ceiling inspection port comprising a panel body disposed on the inner side of the inner frame using a fixture, wherein the inner frame includes a vertically extending slit formed in a side wall portion of the inner frame, and a side wall portion An upper flange portion that bends from the top of the side wall, and a lower flange portion that bends from the lower portion of the side wall portion, and the fixture is formed by bending one linear spring member, A holding part that is formed in a hook shape at the end of the spring member and is placed on the lower flange part of the inner frame to abut and engage with the upper surface of the panel body, and engages with the upper flange part of the inner frame An engaging shoulder that is connected to the base end of the engaging shoulder and the holding portion. Both include a deformable arm portion that promotes elasticity between the pressing portion and the engaging shoulder portion, and the pressing portion of the fixture is inserted through the slit of the inner frame so that the pressing portion is placed on the upper surface of the panel body. The panel body is fixed to the inner frame by engaging the engagement shoulder portion with the upper flange portion of the inner frame while deforming the deformable arm portion in a contact-engaged state. To do.

  By configuring in this way, the engaging shoulder portion is deformed while the deforming arm portion is deformed in a state where the pressing portion of the fixture is inserted into the slit of the inner frame and the pressing portion is in contact with and engaging with the upper surface of the panel body. Is engaged with the upper flange portion of the inner frame, and the panel body can be fixed to the inner frame by the elastic force of the fixture.

  Further, the invention according to claim 2 is the panel body mounting structure in the ceiling inspection port according to claim 1, wherein the fixture is formed in a hook shape at both ends of the linear spring member and is below the inner frame. A pressing portion that abuts and engages with the upper surface of the panel body placed on the flange portion, a pair of left and right engaging shoulder portions that engage with the upper flange portion of the inner frame, the engaging shoulder portion and the above A pair of left and right deformable arm portions that are connected to the proximal end of the pressing portion and that promotes elasticity are provided between the pressing portion and the engaging shoulder portion. In this case, it is preferable to form a bending part for pushing substitute projecting to the side opposite to the inner frame side at an intermediate portion of the upper connecting part that connects the left and right engaging shoulders.

  With this configuration, the pair of left and right engaging shoulders are deformed while the pair of left and right deforming arm portions are deformed while the pair of pressing portions of the fixture are in contact with and engaged with the upper surface of the panel body. The panel body can be fixed to the inner frame by the elastic force of the fixture. In this case, the folding part for pushing substitute is formed in the inner frame of the upper coupling part that couples the left and right engaging shoulders. The engagement shoulder portion can be engaged with the upper flange portion of the inner frame by pressing to the side (claim 4).

  In the present invention, it is preferable that the pressing portion is formed to be inclined downward toward the tip.

  By comprising in this way, the front-end | tip part of a holding | suppressing part can bite into the upper surface of a panel body, and can be engaged.

  Since the mounting structure of the panel body in the ceiling inspection port according to the present invention is configured as described above, the following effects can be obtained.

  (1) According to the invention described in claim 1, the inner frame includes a slit extending in the vertical direction formed in the side wall portion of the inner frame, an upper flange portion bent from the top portion of the side wall portion, and the side wall portion. And a lower flange portion that bends from the lower part of the frame, and a fixture for attaching the panel body to the inner frame is formed by bending one linear spring member, and is attached to the end of the linear spring member. A pressing portion that contacts the upper surface of the panel body that is formed in a bowl shape and is placed on the lower flange portion of the inner frame, an engagement shoulder portion that engages with the upper flange portion of the inner frame, and this engagement It is connected to the base end of the joint shoulder and the pressing portion, and has a deformable arm portion that promotes elasticity between the pressing portion and the engaging shoulder portion. The deformable arm portion is deformed while the pressing portion is in contact with and engaged with the upper surface of the panel body. It is engaged with the upper flange portion of the inner frame the shoulder can be fixed to the panel body to the inner frame. Therefore, even when the thickness of the panel body is thick, the fixture can be easily attached to the inner frame, so that the panel body can be easily attached to the inner frame. In addition, since the fixture can be formed with a small number of components, the processing steps of the fixture can be reduced, and the material can be reduced.

  (2) According to the invention described in claim 2, the fixture is brought into contact with the upper surface of the panel body which is formed in a hook shape at both ends of the linear spring member and is placed on the lower flange portion of the inner frame. A pair of engaging pressing portions, a pair of left and right engaging shoulders engaging with the upper flange portion of the inner frame, and the engagement shoulder portion and the proximal end of the pressing portion are coupled to and engaged with the pressing portion. By forming with a pair of left and right deformable arm portions that promote elastic force between the shoulder portions, the panel body can be easily attached to the inner frame as in the first aspect of the invention. . Furthermore, since the strength of the fixture can be increased, the attachment of the panel body to the inner frame can be ensured.

  (3) According to the invention described in claim 3, by forming the pressing portion in a downwardly inclined manner toward the tip, even if the pressing portion is bent, the tip is surely bitten into the upper surface of the panel body. Therefore, in addition to the above (1) and (2), the panel body can be more securely fixed.

  (4) According to the invention described in claim 4, by forming a bending part for pushing substitute projecting on the side opposite to the inner frame side at the intermediate portion of the upper connecting part for connecting the left and right engaging shoulders. The bent shoulder can be pressed against the inner frame to easily engage the engaging shoulder with the upper flange of the inner frame. Therefore, in addition to the above (2) and (3), the panel body 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.

<First Embodiment>
FIG. 1 is a plan view (a) showing a main part of a mounting portion of a ceiling inspection opening to which a panel body mounting structure according to a first embodiment of the present invention is applied. It is II-II arrow directional view (c) of (b) and (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 6 disposed on the inner side of the inner frame 4 and attached using a fixture 5A 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.

  As shown in FIGS. 1 and 3, the inner frame 4 includes a slit 42 extending in a vertical direction formed at appropriate positions of the opposing side wall 41, for example, two left and right sides of the side wall 41 on one side, and the side wall 41. An upper flange portion 43 that bends in a substantially horizontal L-shape from the top of the inner frame 4 to the outer side of the inner frame 4, and a lower flange portion 44 that extends inward of the inner frame 4 from the lower end of the side wall portion 41. Yes. The inner frame 4 configured as described above is formed by, for example, assembling four outer frame members 4a formed of an extruded shape made of 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 fixture 5 </ b> A is formed in a hook shape at one end portion of one linear spring member and placed on the lower flange portion 44 of the inner frame 4. It is connected to the base end of the pressing portion 51 that contacts and engages with the upper surface of the panel body 6, the engaging shoulder portion 52 that engages with the upper flange portion 43 of the inner frame 4, and the engaging shoulder portion 52 and the pressing portion 51. In addition, a deformable arm portion 54 that is bent in a substantially L shape that promotes elasticity between the pressing portion 51 and the engaging shoulder portion 52, and extends straightly upward from the engaging shoulder portion 52. Engaging end 56. In addition, you may make it provide the circular-arc-shaped bending part 56a (it shows with a dashed-two dotted line in FIG. 2) toward the inward side from the engagement end part 56 at the front-end | tip of the engagement end part 56. FIG.

  By providing the bent portion 56a in this way, when attaching the attachment 5A to the inner frame 4, the operator can safely handle the attachment 5A without hooking a finger or the like on the engagement end portion 56. .

  Further, the pressing portion 51 is inclined downward toward the tip, for example, 45 ° with respect to the vertical line. By forming in this way, even if the pressing portion 51 is bent, the tip portion can be surely bitten into the upper surface of the panel body 6 to be engaged, so that the displacement of the panel body 6 with respect to the inner frame 4 is prevented, The panel body 6 can be reliably fixed.

  Next, the procedure for attaching the inner frame 4 will be described with reference to FIGS.

  First, as shown in FIG. 3, the panel body 6 is placed on the lower flange portion 44 of the inner frame 4. Next, as shown in FIG. 4, the pressing portion 51 of the fixture 5 </ b> A is inserted from the outside into the slit 42 provided in the inner frame 4, and the tip of the pressing portion 51 is brought into contact with the upper surface of the panel body 6. .

  Next, the engaging shoulder portion 52 and the engaging end portion 56 are connected to the upper flange of the inner frame 4 while the deformable arm portion 54 is deformed inward in a state where the pressing portion 51 is in contact with and engaged with the upper surface of the panel body 6. When the pressing of the deformable arm portion 54 is released after being engaged with the portion 43, the tip of the pressing portion 51 is pressed against the upper surface of the panel body 6 by the elastic force of the deformable arm portion 54, and the panel body 6 is pressed against the inner frame 4. Is fixed.

  By forming the fixture 5 </ b> A as described above, the panel body 6 can be reliably fixed to the inner frame 4. Moreover, since the fixture 5A can be attached from the outside of the inner frame 4 via the slit 42, the panel body 6 can be easily attached even when the panel body 6 is thick. Furthermore, since the fixture 5A can be formed with a small number of components, the processing steps of the fixture 5A can be reduced, and the material can be reduced.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 6: is a top view (a) which shows the principal part of the attachment part of the ceiling inspection opening to which the attachment structure of the panel body concerning 2nd Embodiment of this invention is applied, sectional drawing which follows the III-III line of (a) It is IV-IV arrow directional view (c) of (b) and (b).

  The second embodiment is a case where the fixture 5B is applied instead of the fixture 5A in the first embodiment to give strength. In this case, as shown in FIGS. 6 to 8, the fixture 5B is formed in a hook shape at both ends of one linear spring member and is placed on the lower flange portion 44 of the inner frame 4. A pair of pressing portions 51 that abut and engage with the upper surface of the panel body 6, a pair of left and right engagement shoulder portions 52 that engage with the upper flange portion 43 of the inner frame 4, and a pair of left and right engagement shoulder portions 52. The connecting portion 53 to be connected is connected to the base ends of the engaging shoulder portion 52 and the holding portion 51, and is bent in a substantially L shape to promote elasticity between the holding portion 51 and the engaging shoulder portion 52. And a pair of left and right deformable arm portions 54.

  In addition, the said holding | suppressing part 51 is downwardly inclined toward the front-end | tip similarly to 1st Embodiment, for example, is formed at 45 degrees with respect to a perpendicular line. By forming in this way, even if the pressing portion 51 is bent, the tip portion can be surely bitten into the upper surface of the panel body 6 to be engaged, so that the displacement of the panel body 6 with respect to the inner frame 4 is prevented, The panel body 6 can be reliably fixed.

  In addition, a bending portion 55 for pushing substitute projecting substantially in a U-shape is formed on the side opposite to the inner frame 4 side at the intermediate portion of the connecting portion 53. In this way, the bending portion 55 is formed in the intermediate portion of the connecting portion 53 that connects the left and right engaging shoulder portions 52 by projecting the bending portion 55 for pushing instead of projecting to the side opposite to the inner frame 4 side. The engagement shoulder portion 52 can be easily engaged with the upper flange portion 43 of the inner frame 4 by pressing against the frame 4 side. Therefore, it is possible to easily and reliably attach the panel body 6 to the inner frame 4.

  Next, a procedure for attaching the inner frame 4 will be described with reference to FIGS.

  First, as shown in FIG. 8, the panel body 6 is placed on the lower flange portion 44 of the inner frame 4. Next, as shown in FIG. 9, the pressing portion 51 of the fixture 5 </ b> B is inserted from the outside into the slit 42 provided in the inner frame 4, and the tip of the pressing portion 51 is brought into contact with the upper surface of the panel body 6. .

  Next, the engaging shoulder 52 is engaged with the upper flange portion 43 of the inner frame 4 while the deformable arm portion 54 is deformed inward with the pressing portion 51 in contact with and engaging with the upper surface of the panel body 6. After that, when the pressing of the deformable arm portion 54 is released, the tip of the pressing portion 51 is pressed against the upper surface of the panel body 6 by the elastic force of the deformable arm portion 54, and the panel body 6 is fixed to the inner frame 4. At this time, if the bending portion 55 for pushing is pressed against the inner frame 4 side, the engagement shoulder portion 52 can be easily engaged with the upper flange portion 43 of the inner frame 4.

  In the second embodiment, the other parts are formed in the same manner as in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

The top view (a) which shows the principal part of the attachment part of the ceiling inspection opening to which the attachment structure of the panel body concerning 1st Embodiment of this invention is applied, sectional drawing (b) in alignment with the II line of (a), and It is an II-II arrow line view (c) of (b). It is an expansion perspective view which shows the fixture in 1st Embodiment of this invention. It is a perspective view which shows the fixture and inner frame in 1st Embodiment of this invention. It is a perspective view which shows the state which made the said fixture in 1st Embodiment penetrate the slit of the said inner frame. It is a perspective view (a) which shows the attachment state of the said inner frame in 1st Embodiment, and the back perspective view (b) of (a). The top view (a) which shows the principal part of the attachment part of the ceiling inspection port to which the attachment structure of the panel body concerning 2nd Embodiment of this invention is applied, sectional drawing (b) along the III-III line of (a), and It is IV-IV arrow directional view (c) of (b). It is the top view (a), front view (b), and side view (c) of the fixture in 2nd Embodiment of this invention. It is a perspective view which shows the fixture and inner frame in 2nd Embodiment of this invention. It is a perspective view which shows the state which penetrated the said fixture in 2nd Embodiment to the slit of the said inner frame. It is a perspective view (a) which shows the attachment state of the said inner frame in 2nd Embodiment, and the back perspective view (b) of (a). It is sectional drawing which shows the attachment state of the conventional ceiling inspection opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Opening part 3 Outer frame 4 Inner frame 5A, 5B Attaching tool 6 Panel body 41 Side wall part 42 Slit 43 Upper flange part 44 Lower flange part 51 Holding part 52 Engagement shoulder part 54 Deformed arm part 55 Pushing substitute bending part

Claims (4)

A rectangular outer frame that is attached to an opening provided on the ceiling of the building, an inner frame that can be freely opened and closed within the outer frame, and a panel that is disposed on the inner side of the inner frame using a fixture. In the ceiling inspection port equipped with the body,
The inner frame includes a vertically extending slit formed in a side wall portion of the inner frame, an upper flange portion bent from a top portion of the side wall portion, and a lower flange portion bent from a lower portion of the side wall portion. ,
The fixture is formed by bending one linear spring member, and is formed in a hook shape at the end of the linear spring member and placed on the lower flange portion of the inner frame. A pressing portion that abuts and engages with the upper surface of the panel body, an engaging shoulder portion that engages with the upper flange portion of the inner frame, and a pressing portion that is coupled to the engagement shoulder portion and the proximal end of the pressing portion. A deformable arm portion that promotes elasticity between the portion and the engaging shoulder portion,
The engaging shoulder portion is deformed while the deforming arm portion is deformed in a state where the pressing portion of the fixture is inserted into the slit of the inner frame and the pressing portion is brought into contact with and engaged with the upper surface of the panel body. A panel body mounting structure in a ceiling inspection port, wherein the panel body is fixed to an inner frame by engaging with the upper flange portion of the panel. In the mounting structure of the panel body in the ceiling inspection port according to claim 1,
The mounting tool is formed in a hook shape at both ends of the linear spring member and is placed on the lower flange portion of the inner frame so as to come into contact with and engage with the upper surface of the panel body, and the inner frame A pair of left and right engaging shoulders that are engaged with the upper flange portion, and the engagement shoulder portion and the proximal end of the pressing portion, and a resilient force between the pressing portion and the engaging shoulder portion. A panel body mounting structure in a ceiling inspection opening, characterized by comprising a pair of left and right deformable arm portions for prompting. In the panel body mounting structure in the ceiling inspection port according to claim 1 or 2,
The mounting structure of the panel body in the ceiling inspection port, wherein the pressing portion is formed to be inclined downward toward the tip. In the mounting structure of the panel body in the ceiling inspection port according to claim 2 or 3,
A panel body in a ceiling inspection opening, characterized in that a bending portion for pushing substitute projecting to the side opposite to the inner frame side is formed at an intermediate portion of the upper connecting portion connecting the left and right engaging shoulder portions. Mounting structure.

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