JP4591857B1 - Inspection opening and closing structure - Google Patents

Abstract

[PROBLEMS] To easily construct a mounting structure of an inspection port lid for closing an inspection port provided on a wall surface of a building, and to easily open and close the inspection port without requiring a special tool. Provided is an inspection opening / closing structure capable of ensuring a beautiful appearance without damaging or soiling a wall surface.
An inspection port lid is composed of a plate member that closes an opening of an inspection port frame. The inspection port frame includes a support portion that protrudes inward along an inner peripheral rear end of the inspection port frame, and an upper surface of the support portion. A fixed elastic member that elastically supports the periphery of the inspection palate, an inner projecting portion projecting inward in the middle of the outer portion raised along the outer periphery of the support portion, and an upper end of the outer portion And an opening / closing frame that opens and closes around a hinge portion that is pivotally mounted along the fulcrum.By closing the opening / closing frame, the periphery of the inspection opening lid resists the elastic force of the elastic member at the inner periphery of the opening / closing frame. The hook part provided inside the opening / closing frame is hooked and fixed to the hook part provided in the support part.
[Selection] Figure 1

Description

  The present invention relates to an opening / closing structure for an inspection port in which an inspection port provided on a wall surface of a building is opened and closed with an inspection port lid.

  Conventionally, an inspection port provided for inspecting the inside of a wall surface of a building is usually closed with an inspection port lid to ensure safety and maintain the aesthetic appearance of the wall surface. Such an inspection port lid needs to be opened when the inside of the inspection port is inspected and closed after the inspection is completed. Therefore, the opening and closing structure of the inspection port affects workability and safety when opening and closing the inspection port lid, and various types have been developed.

  Therefore, conventional techniques related to such an opening / closing structure of the inspection port will be examined.

  What is described in Patent Document 1 relates to a spring-type inspection port lid, and is provided with wire spring stoppers on the left and right or upper and lower sides of the inspection port, while a bifurcated wire spring is provided on the lid member that closes the inspection port. It has a provided structure. In such a structure, when the lid member is attached to the inspection port, the wire spring spreads in a forked shape after inserting the wire spring on the lid member side into the insertion hole provided in the stopper on the inspection port side. Thus, it is locked to the locking portion of the insertion hole, and the mounting operation can be performed safely. On the other hand, a bifurcated wire spring provided on the inspection port lid, a stopper provided on the inspection port side, and the like are required, which disadvantageously increases the number of components.

  Further, the structure described in Patent Document 2 is a wall material on the back side that protrudes outward from a support portion provided on the inner periphery of the inspection port and is supported to be swingable with a hinge portion as a fulcrum. It has a simple structure of having a clamping plate and opening and closing the inspection palate by opening and closing the front-side palate clamping plate with a hinge structure. However, when opening the closed inspection palate, it requires a pointed tool to be inserted between the inspection palate and the palate clamping plate, and when using this tool, the surface of the inspection palate may be damaged, There are inconveniences such as dirt.

Utility Model Registration No. 314817 JP 2000-179141 A

  The present invention has been made in view of the above circumstances, and simply configures an inspection port lid mounting structure that closes an inspection port provided on a wall surface of a building, etc., and easily eliminates the need for a special tool. Provides an inspection opening and closing structure that can ensure the aesthetics of the wall surface and inspection palate without damaging or soiling the inspection opening lid or wall surface during this opening and closing operation. The purpose is to do.

In order to achieve the above object, the inspection port opening and closing structure according to claim 1 of the present invention includes an inspection port frame attached to the inner peripheral edge of the opening provided on the wall surface, and an inspection port lid detachably attached to the inspection port frame. a closing structure inspection port consisting of, inspection palate a plate member for closing the opening of the access door frame, inspection opening frame, support portion overhanging inwardly along the inner periphery rear end of the inspection opening frame An elastic member that is fixed to the upper surface of the support portion and elastically supports the periphery of the inspection palate, and an inner protrusion that protrudes inward in the middle of the outer portion raised along the outer periphery of the support portion And an opening / closing frame that opens and closes with a hinge portion pivotably mounted along the upper end of the outer portion as a fulcrum, and the peripheral edge of the inspection palate at the inner peripheral edge of the opening / closing frame by closing the opening / closing frame Against the elastic force of the elastic member and the inside of the opening / closing frame In closing structure inspection opening hook portion provided for fixing hooked to the hook portion provided on the support portion, the elastic member is a cylindrical coil spring, a cylindrical piece fixed to the coil spring on the upper surface of the support portion It is characterized by being mounted on the outer periphery .

According to a second aspect of the present invention, there is provided an inspection port opening / closing structure according to the first aspect, wherein the elastic member is a conical coil spring, and a screw inserted on the small diameter side of the coil spring is screwed from the upper surface of the support portion. It is characterized by being fixed with.

  According to the opening / closing structure of the inspection port of the present invention, the periphery of the inspection port lid mounted on the inspection port frame is elastically supported by the elastic member fixed to the support portion of the inspection port frame, and the periphery of the inspection port lid is opened and closed. With the simple structure that is pressed down, it is possible to make a structure in which no play occurs on the inspection port lid attached to the inspection port frame. In addition, the inspection palate according to the present invention is made of a plate member and has a very simple configuration without an outer frame, and by pasting a wallpaper similar to the surrounding wall surface on the surface of the plate member, It is also possible to ensure a similar aesthetic appearance.

  Also, when removing the inspection lid, push the inspection lid backward from the front against the elastic force of the elastic member, insert a finger into the gap between the opening and closing frame and the inspection lid and lift the opening and closing frame. The open / close frame is released from the hooked state of the hook portion of the open / close frame and the hook portion of the support portion. In this way, it is possible to easily open and close the inspection port manually without using a special tool, and easily remove the inspection port lid without damaging or soiling the wall surface or inspection port lid. Can be opened.

  In addition, when closing the inspection port with the inspection port lid, the inspection port lid is attached to the inner periphery of the inspection port frame, and each opening / closing frame is closed so that the periphery of the inspection port lid is pressed down by each opening / closing frame. The peripheral edge is pressed to the open / close frame side by the elastic force of the elastic member. As a result, the inspection port lid is closely attached to the inside of each opening / closing frame without any play, and the appearance of the inspection port is maintained as there is no gap between each opening / closing frame and the inspection port lid.

It is a top view which shows the process of attaching an inspection opening lid to the inspection opening frame by the Example of this invention, (a) is a top view of an inspection opening frame, (b) opens each opening-and-closing frame of an inspection opening frame, and opens an inspection opening lid. The top view which shows the state which has mounted | worn, (c) is a top view which shows the condition which mounted | wore the inspection port lid | cover and closed each opening-and-closing frame of an inspection port frame, (d) is the AA arrow line of (b). FIG. It is a fragmentary sectional perspective view which shows the condition which attaches an inspection opening lid to the inspection opening frame by the Example of this invention, (a) shows the state which opened the opening-and-closing frame, (b) shows the state which closed the opening-and-closing frame. It is sectional drawing which shows the cross-sectional condition which attached the inspection port cover to the inspection port frame by the Example of this invention, and follows the BB arrow line of FIG.1 (c). (a)-(d) is a figure which shows the various aspects of the elastic member provided in the inspection port frame which concerns on the Example of this invention, and in each figure of (a)-(d), an inspection port frame is on the right side. The front view shows the cross section of the inspection port frame on the left. (a)-(e) is a front view which shows the various aspects at the time of using a leaf | plate spring as an elastic member based on the Example of this invention, In each figure, a leaf | plate spring and the support part of an inspection port frame, Only the inspection palate and screws are shown.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 (a) to 1 (d), the opening / closing structure of the inspection port according to the present embodiment includes an inspection port frame 1 attached to the inner periphery of the opening 10 provided on the wall surface of a building or the like and the inspection port. The inspection port cover 2 is detachably attached to the frame 1.

  The opening / closing structure of the inspection port of this embodiment will be described in detail. As shown in FIGS. 1A and 1B, the inspection port lid 2 of the present embodiment is formed of a plate member having a shape corresponding to the inner peripheral shape of the opening 10 provided on the wall surface, that is, a planar shape forming a quadrangle. . As the material of the inspection port cover 2, it is possible to use a wood material formed by heat-pressing wood and a plywood formed by compression molding a paper material or other materials. Moreover, the wallpaper suitable for the wall surface of a building is affixed on the single side | surface or both surfaces of the inspection mouth cover 2. FIG. This inspection mouth cover 2 consists only of a plate member without an outer frame, and the same aesthetics as a wall surface can be ensured by sticking a wallpaper similar to the surrounding wall surface on the surface of the plate member.

  Moreover, the structure of the inspection port frame 1 in the present embodiment is a flat plate extending inward along the inner periphery of the inspection port frame 1 having four sides as shown in FIGS. 1 (a), 1 (b), and (d). A support portion 3 is provided, and the periphery of the inspection port lid 2 can be supported by the respective support portions 3, 3... On the four sides of the inspection port frame 1. As shown in FIG. 1 (a), a reinforcing corner plate 18 is fixed to each support portion 3, 3,... Of the inspection port frame 1 for each corner portion, and a screw is attached to each corner plate 18. A hole 19 is formed, and the screw 20 can be fixed by being screwed into a base material 21 (see FIG. 3) or the like, as shown in FIG.

  Further, as shown in FIG. 1 (d), the inspection port frame 1 is formed with an inner overhang portion 5 that projects inward in the middle of the outer portion 4 raised along the outer periphery of the support portion 3. The outer side portions of the inspection port lid 2 attached to the inspection port frame 1 can be suppressed from four sides by the respective inner overhang portions 5, 5... Forming the four sides of the inspection port frame 1 (see FIG. 3).

  Further, as shown in FIG. 1 (d), an outer projecting portion 6 projecting outward is provided at the upper end of the outer portion 4 of the inspection port frame 1, and the outer peripheral end portion of the outer projecting portion 6 is provided. An open / close frame 9 that opens and closes around a hinge portion 8 that is pivotably attached along the outer peripheral upper portion of the inspection port frame 1 is provided on the upright side 7 that is formed in FIG. The hinge portion 8 is made of a flexible material such as a soft synthetic resin.

  Furthermore, a hook portion 11 is provided in the middle of the opening / closing frame 9, and a hooking portion 12 is provided at the upper end of the outer side portion 4, so that the hook portion 11 of the opening / closing frame 9 is hooked on the hooking portion 12 of the outer side portion 4. Thus, the closed state of the open / close frame 9 can be locked.

  Further, in the present embodiment, as shown in FIGS. 1A and 1B, at least two sides, three sides, or four sides facing each other among the four side support portions 3, 3. An elastic member 13 is fixed to the upper surface of the support portion 3 and elastically supports the periphery of the inspection port lid 2 attached to the opening 10 of the inspection port frame 1 as shown in FIGS. 2 (a) and 2 (b). Like to do.

  With the above configuration, as shown in FIG. 1 (b), after opening the opening and closing frames 9, 9... Of the inspection port frame 1 and attaching the inspection port lid 2, as shown in FIG. The opening 10 of the inspection port frame 1 can be closed with the inspection port lid 2 by closing the open / close frames 9, 9.

  At this time, as shown in FIG. 2 (b), when the opening / closing frame 9 is closed and the hook portion 11 of the opening / closing frame 9 is hooked on the hooking portion 12 of the outer side portion 4, the elastic member 13 is opened and closed. 9 and compressed against the elastic force of the elastic member 13, the opening / closing frame 9 presses the peripheral edge of the inspection port lid 2, so that the peripheral edge of the inspection port lid 2 is moved to the opening / closing frame 9 side by the elastic force of the elastic member 13. Pushed out. As a result, the inspection mouth cover 2 is in close contact with the inside of each open / close frame 9 without any play.

  In the above embodiment, it is possible to use an elastic sponge 14 having elasticity (see FIG. 4D) as the elastic member 13. However, since the elastic sponge 14 is severely deteriorated over time, it is elastic. As the member 13, it is preferable to use a leaf spring 15 shown in FIG.

  The leaf spring 15 is formed by using a long elastic metal plate or the like to bend in the vicinity of both ends thereof so as to be provided with inclined portions 15a and 15a, and to bend each end portion 15b and 15b into a flat shape. It is a thing. Then, a screw hole (not shown) is provided in the central flat portion 15 c and fixed to the support portion 3 with screws 22. According to such a leaf spring 15, the inclined portions 15 a and 15 a are deformed in the vertical direction and expanded and contracted by pressing or releasing the inspection port lid 2, thereby exhibiting elasticity. In such an operation, the front end portions 15b and 15b of the leaf spring 15 support the lower surface of the inspection port lid 2 and smoothly move relative to the lower surface of the inspection port lid 2 when the inclined portions 15a and 15a are deformed. It is possible to slide.

  The length of the flat portion 15c of the leaf spring 15 should be set according to the length of the inspection port frame 1. The flat portion 15c is long, and the spaced apart widths of the tip portions 15b and 15b on both sides are long. Thus, it is possible to support the vicinity of the end portion of the inspection opening lid 2 in a stable state.

  Further, the number of screw holes (not shown) and screws 22 provided in the flat portion 15c of the leaf spring 15 is not limited to the two shown in the drawing, and may be one or more depending on the length of the flat portion 15c. Further, as a means for fixing the leaf spring 15 to the support portion 3, the flat portion 15 c may be fixed to the upper surface of the support portion 3 by using an adhesive, a double-sided tape or the like in addition to the screw 22. Good.

  Here, as the elastic member 13, in addition to the leaf spring 15 in FIG. 4A, an example in which a leaf spring having another shape is used is shown in FIGS. 5A to 5E, only the leaf springs 15A to 15E, the support portion 3 of the inspection port frame 1, the inspection port lid 2, and the screws 22 are shown for easy understanding of the drawings.

  The leaf spring 15A in FIG. 5 (a) has the same shape as that in FIG. 4 (a), and is formed by bending using a plate material made of a long elastic metal, etc. Inclined portions 15a and 15a in the vicinity of the upper end and tip portions 15b and 15b at both ends are formed.

  Further, the leaf spring 15B of FIG. 5B is obtained by separating the flat portion 15c of the leaf spring 15 of FIG. 5A into a flat portion 15d having a predetermined length, and the flat portion 15d and FIG. It has the inclined part 15a and the front-end | tip part 15b similar to what is shown to (a). And each leaf | plate spring 15B is attached by fixing to the both ends vicinity of the support part 3 of the inspection port frame 1 with the screw | thread 22, an adhesive agent, or a double-sided tape. According to such a leaf spring 15B, even if the length of one side of the inspection opening frame 1 is different, the inspection opening lid 2 can be adjusted by adjusting the respective attachment positions using the pair of leaf springs 15B and 15B. Can be supported in a stable state.

  Further, the leaf spring 15C of FIG. 5C is obtained by changing the shape of the inclined portion 15a and the tip portion 15b of the leaf spring 15A of FIG. The flat part 15c is provided between 15e. Then, a screw hole (not shown) is provided in the central flat portion 15 c and the screw 22 is fixed to the support portion 3. According to the leaf spring 15C, the curved portions 15e and 15e of the leaf spring 15C are deformed in the vertical direction and expanded and contracted by pressing or releasing the inspection port lid 2, thereby exhibiting elasticity.

Further, the leaf spring 15D in FIG. 5D is obtained by separating the flat portion 15c of the leaf spring 15C in FIG. 5C into a flat portion 15d having a predetermined length. The flat portion 15d and FIG. (C) has a curved portion 15e, and a pair of leaf springs 15C and 15C are fixed by screws 22, adhesive or double-sided tape or the like in the vicinity of both ends of the support portion 3 of the inspection port frame 1 alone. Can be installed.

  Further, the leaf spring 15E shown in FIG. 5 (e) has a central flat portion 15c that is short, arc-shaped portions 15f and 15f are formed at both ends thereof, and flat tip portions 15b are formed at both ends. Is. According to the leaf spring 15E, the curved portions 15f and 15f of the leaf spring 15E are deformed in the vertical direction and expanded and contracted by pressing or releasing the inspection port lid 2, thereby exhibiting elasticity.

  In this embodiment, a cylindrical coil spring 16 may be used as the elastic member 13 in addition to the plate springs 15A to 15E as shown in FIG. The coil spring 16 is formed by forming an elastic wire made of metal or the like into a cylindrical coil shape. The coil spring 16 may be attached to the outer periphery of the columnar piece 16 a fixed to the upper surface of the support portion 3 of the inspection port frame 1, and may be expanded and contracted in the vertical direction by pressing or releasing the inspection port lid 2. In such a configuration, cylindrical pieces 16a and 16a are provided at two positions apart from the predetermined support portion 3 of the inspection port frame 1, and the coil spring 16 is attached to each cylindrical piece 16a. The cylindrical pieces 16a may be provided at three or more locations and the coil springs 16 may be attached.

  4 (c), the elastic member 13 is a conical coil spring 17, and a screw 17a inserted on the small diameter side of the coil spring 17 is screwed in from the upper surface of the support portion 3 and fixed. In addition, the inspection port lid 2 may be expanded or contracted in the vertical direction by pressing or releasing. Even in such a configuration, the conical coil springs 17 are fixed with screws 17a at two positions apart from the predetermined support portion 3 of the inspection port frame 1, but each support portion 3 has a conical shape at three or more locations. The coil spring 17 may be fixed with a screw 17a.

  Further, the elastic member 13 shown in FIG. 4D uses a long sponge 14 having a quadrangular cross section, and an adhesive or double-sided tape is attached to one surface of the sponge 14 at the approximate center of the upper surface of the support portion 3. It is fixed with etc. Although the sponge 14 is severely deteriorated over time, the sponge 14 is inexpensive and can be easily fixed to the support portion 3. Therefore, the sponge 14 can be used as an auxiliary for other elastic members. That is, for example, first, the plate springs 15 and 15 are attached to the two opposite sides of the inspection port frame 1 and then the plate springs 15 and 15 are attached to the other two sides. It is also possible to use it as an auxiliary.

  The opening and closing structure of the inspection port according to the present invention simply constitutes the mounting structure of the inspection port lid that closes the inspection port provided on the wall surface of the building, etc., and easily opens and closes the inspection port without requiring a special tool. It can be used as an opening / closing structure for the inspection port that can secure the aesthetics of the wall surface and the inspection lid without damaging or soiling the inspection port lid or the wall surface during this opening / closing operation. is there.

DESCRIPTION OF SYMBOLS 1 Inspection port frame 2 Inspection port lid 3 Support part 4 Outer part 5 Inner overhang part 6 Outer overhang part 7 Upright side 8 Hinge part 9 Opening / closing frame 10 Opening part 11 Hook part 12 Hook part 13 Elastic member 14 Sponge 15 Plate spring 15a Inclined portion 15b Tip portion 15c Flat portion 15d Flat portion 15e having a predetermined length Curved portion 15f Arc-shaped portion 15A Leaf spring 15B Leaf spring 15C Leaf spring 15D Leaf spring 15E Leaf spring 16 Cylindrical coil spring 16a Cylinder piece 17 Cone coil spring 17a Screw 18 Corner plate 19 Screw hole 20 Screw 21 Base material 22 Screw W Wall surface

Claims (2)

A closing structure inspection port comprising a check palate removably attached to inspection opening frame and the inspection opening frame attached to the inner periphery of the opening provided in the wall,
The inspection lid is made of a plate member that closes the opening of the inspection port frame,
The inspection port frame includes a support portion that protrudes inward along the inner peripheral rear end of the inspection port frame, an elastic member that is fixed to the upper surface of the support portion and elastically supports the periphery of the inspection port lid, and an outer periphery of the support portion And an opening / closing frame that opens and closes with a hinge portion pivotably attached along the upper end of the outer portion as a fulcrum. Have
By closing the open / close frame, the peripheral edge of the inspection lid is pressed against the elastic force of the elastic member at the inner peripheral edge of the open / close frame, and the hook portion provided inside the open / close frame is hooked to the support portion. In the opening and closing structure of the inspection port that is hooked and fixed to the part ,
An opening and closing structure for an inspection port , wherein the elastic member is a cylindrical coil spring, and the coil spring is attached to the outer periphery of a columnar piece fixed to the upper surface of the support portion .   2. The opening / closing structure for an inspection port according to claim 1, wherein the elastic member is a conical coil spring, and a screw inserted on the small diameter side of the coil spring is fixed by being screwed in from the upper surface of the support portion.