JP6366096B2 - Inspection frame outer frame fixing device - Google Patents

Description

  The present invention relates to an outer frame fixing device for an inspection port provided on, for example, a ceiling, a floor surface, or a wall surface.

  FIG. 6 is an explanatory cross-sectional view illustrating a state in which the outer frame 4 of the conventional wall surface inspection port is fitted and fixed to the opening 71 opened in the wall surface 7. The outer frame 4 of the wall inspection port includes a peripheral wall portion 41, a horizontal edge portion 42 protruding outward from the upper portion of the peripheral wall portion 41, and an inner frame support portion 43 protruding inwardly at the lower portion of the peripheral wall portion 41. It consists of.

  A screw hole is provided in the surface of the peripheral wall portion 41 or the inner frame support portion 43 of the outer frame 4. On the other hand, a surface material (wall surface decorative finishing material such as a plaster board) 72 is mounted on the surface of the wall surface 7, and a base material 73 is applied to the back side of the surface material 72. The outer frame 4 is fitted into the opening 71, the horizontal edge 42 is in contact with the surface edge of the face member 72, and the outer surface of the peripheral wall 41 is in contact with the end face of the face member 72.

In this state, the screw 74 is driven into the corresponding base material 73 into the screw hole of the peripheral wall portion 41 or the screw hole of the inner frame support portion 43, and the outer frame 4 is fixed to the wall surface 7 in a frame shape. On the other hand, when opening the wall surface 7, the face material 72 cut out from the wall surface is fitted and fixed in the inner frame to constitute the inspection port lid 75, and this inspection port lid 75 is fitted into the outer frame 4 and supported by the inner frame support part 43.
JP 2003-120014 A

  The outer frame of the conventional wall inspection port only has to be screwed in, so there is an advantage that the product cost is low, but on the other hand, construction of the base material is necessary in advance, and the construction of this base material requires skill There are drawbacks. If there is a problem in the construction of the base material, there will be a problem in the facing distance between the outer frame peripheral wall and the base material. As a result, it is difficult to tighten and tighten the screws. There is a disadvantage that there is no proper gap between the outer frame and the outer frame is deformed.

  On the other hand, on the outer frame of the ceiling inspection port, an “L-shaped” metal fitting provided with a bolt is attached to the peripheral wall of the outer frame, and a face material is sandwiched between the tip of the bolt and the horizontal edge (not shown) Is known). This type does not require a base material construction technique, but has the disadvantage that it requires troublesome procedures and labor, such as attaching a fixing metal fitting after the outer frame is temporarily fixed and further tightening a bolt.

  The present invention eliminates the above-described problems, does not require the base material to be installed in the outer frame, and does not require skill, and the mounting operation is simple, easy, and fast and strong. An object of the present invention is to provide an outer frame fixing device for an inspection port that can fix a frame.

In order to achieve this object, the inspection frame outer frame fixing device of the present invention has the following configuration.
The outer frame fixing device of the inspection port includes an outer frame, a bearing provided on the back surface of the inner frame support portion of the outer frame, an inwardly curved plate provided opposite to the bearing, and a bearing on the bearing at the base end. Provided with a rotating shaft portion, provided with a window hole into which the inwardly curved plate is fitted and inserted in the surface, and a rotating plate in which the tip portion hits the face material of the wall surface by turning outward, and inward It is characterized by comprising locking means that is arranged between the curved surface of the curved plate and the window hole of the rotating plate and prevents the rotating plate from turning inward.

  In the outer frame fixing device of the inspection port having such a configuration, the inwardly curved plate passes through the window hole of the rotating plate by rotating the rotating plate outward, and the window hole and the inwardly curved plate Since the inward rotation of the rotating plate is prevented by the locking means provided between the insertion of the rotating plate, the tip of the rotating plate hits the wall material simply by rotating the rotating plate. The contact state is maintained, and the outer frame can be firmly fixed without loosening.

  When the outer frame is fixed, the rotating plate is simply rotated outward, so that construction of the base material and skill are not required, and accurate, quick and strong outer frame attachment can be realized.

  Further, since the rotating plate, the inwardly curved plate, and the locking means that rotate with respect to the outer frame are integrally provided, the mounting operation can be performed simply and quickly by simply rotating the rotating plate. It has excellent effects of achieving the object of the invention, such as eliminating troublesome attachment procedures and labor.

Hereinafter, specific embodiments of an inspection frame outer frame fixing device according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the outer frame 4 of the wall surface inspection port and the state in which the inspection port lid (inner frame 61) 6 is separated.
An outer frame fixing device is integrally attached to the outer frame 4. The outer frame fixing device includes a bearing 3 and an inwardly curved plate 2 provided on the outer frame 4, a rotating plate 1 having a window hole 12 into which the inwardly curved plate 2 is fitted, and an inwardly curved plate. 2 and a lock means 5 that is disposed between the insertion of the rotation plate 1 and the window hole 12 of the rotation plate 1 and prevents the rotation plate 1 from rotating inward.

The outer frame 4 is a rectangular frame, and includes a peripheral wall portion 41, a horizontal edge portion 42 provided on the upper portion of the peripheral wall portion 41, and an inner frame support portion 43 provided on the lower portion.
On the other hand, the inner frame 61 includes a fitting groove portion 63 that protrudes outward at a proper position of the peripheral wall portion 62, and a fitting plate 65 that projects a frame-shaped presser portion 64. By fitting the fitting plate 65 into the fitting groove portion 63, the holding portion 64 presses and fixes the lid material (the same decorative finish material as the face material 72) 66. At this time, the locking claw 67 provided in the surface of the fitting plate 65 via the slit is fitted and fixed to the claw receiving portion 68 of the fitting groove 63 (inner surface of the overhanging wall).

  As shown in FIG. 2, a fitting groove 47 is provided at an appropriate position on the back surface 44 of the inner frame support 43 of the outer frame 4, and both end portions 48 a of the flat substrate 48 are slidably fitted into the fitting groove 47. To do. A half body portion 3 a constituting a bearing 3 described later is provided on the distal end side of the fitting groove portion 47.

  On the upper surface of the flat substrate 48, a half part 3b of the bearing 3 described later is provided on the inner side. Further, an inwardly curved plate 2 that rises upward is erected in a position facing the half portion 3 b in the plane of the flat substrate 48. On the upper part of the half-body part 3b, an upright folding prevention part 31 is provided, which is intended to support inward tilting of the inwardly curved plate 2.

  As shown in FIG. 3, the rotating plate 1 is composed of a curved portion 14 and a flat plate portion 13 that bend a rectangular flat plate at the center of the length and bend the tip side upward. A rotation shaft 11 is provided at the base end portion of the flat plate portion 13, and a window hole 12 corresponding to the inward curved plate 2 is formed in the surface of the flat plate portion 13 and the inward curved plate 2 is inserted. . The pivot shaft 11 is pivotally supported by the half body 3a and the half body 3b of the bearing 3 so as to be pivotable.

  The locking means 5 is arranged between the insertion of the window hole 12 of the rotating plate 1 and the inwardly curved plate 2. The locking means 5 includes a serrated locking portion 51 provided on the curved outer surface of the inwardly curved portion 14 and a claw 52 provided at the window edge of the tip of the window hole 12 (opposite the rotating shaft 11). .

  As shown in FIG. 4, a plurality of serrations of the serrated locking portion 51 are provided, and are composed of an inclined surface 51a that rises and inclines outward, and a vertical surface 51b that follows the inclined surface, and the claw 52 is formed on the inclined surface 51a. The corresponding inclined nail is set.

  In the embodiment, the fitting groove portion 47 is provided in the outer frame 4, and the flat board (having the half body portion 3 b and the inwardly curved plate 2) 48 is slidably fitted so as to be detachable. However, the present invention is not limited to this, and the fitting groove portion (including the half portion 3 a) 47 may be omitted, and the flat substrate 48 may be integrally formed with the inner frame support portion 43 of the outer frame 4. In this case, the half part 3b of the bearing is a cylindrical shape surrounding the entire circumferential surface of the rotating shaft 11, and is set to a substantially “C-shaped” bearing 3 having a relatively large opening for fitting the shaft. (Not shown).

  In the outer frame fixing device for an inspection port having such a configuration, when the outer frame 4 is fixed, the rotating plate 1 is rotated outward from the state shown in FIG. As shown in FIG. 5, when the inwardly curved plate 2 is inserted through the window hole 12 by the rotation in the direction of the arrow, the rotation of the rotation plate 1 is permitted and the tip of the rotation plate 1 is allowed to move. The part 15 hits the face material 72.

  At this time, the claw 52 climbs over the inclined surface 51a of the sawtooth so as to press down and engages with the vertical surface 51b only by being lowered. As a result, the contact state of the tip portion 15 with respect to the face member 72 is maintained, and the rotation of the rotating plate 1 in the inward direction is prevented by the lock means 5.

  Further, since a plurality of saw teeth (51a, 51b) are provided, the rotating plate 1 is allowed to rotate until the distal end portion 15 hits the face material 72. Therefore, it is possible to deal with various types of face material 72 thickness, and the outer frame 4 can be fixed firmly and firmly without loosening.

It is a perspective view which shows the outer-frame fixing device of the inspection port of embodiment. It is a disassembled perspective view which shows an outer frame fixing device. It is a disassembled perspective view which shows the relationship between a rotating shaft and a bearing. It is explanatory sectional drawing which shows a locking means. It is explanatory sectional drawing which shows the state which attached and fixed the outer frame. It is explanatory sectional drawing which shows the outer-frame fixing device of the conventional inspection port.

DESCRIPTION OF SYMBOLS 1 Rotating plate 2 Inward curved plate 3 Bearing 4 Outer frame 5 Locking means 11 Rotating shaft
12 Window hole 13 Flat plate part 14 Curved part
15 tip 3a half body
3b half body part 41 peripheral wall part
42 Edge portion 43 Inner frame support portion 47 Fitting groove portion 48 Flat substrate 51 Serrated locking portion 52 Claw 51a Inclined surface 51b Vertical surface 72 Face material

Claims (3)

  An in-plane comprising an outer frame, a bearing disposed on the inner frame support portion of the outer frame, an inwardly curved plate disposed opposite to the bearing, and a rotating shaft portion supported by the bearing at the base end Provided with a window hole into which the inwardly curved plate is inserted, and a rotating plate in which the tip portion hits the face material of the wall surface by rotating outward, and the curved surface of the inwardly curved plate and the window of the rotating plate An outer frame fixing device for an inspection port, comprising locking means that is provided between insertion with a hole and prevents inward rotation of the rotation plate.   The locking means is composed of a serrated locking portion provided on the outer surface of the inwardly curved plate and a claw provided on the window edge of the window hole, and the rotating plate is rotated outward and the tip portion is used as a face material. 2. The outer frame fixing device for an inspection port according to claim 1, wherein, when hitting, the teeth and the claws engage with each other to prevent the rotation plate from rotating inward.   The sawtooth of the serrated locking portion is provided in a plurality of continuous shapes on the curved outer surface of the inwardly curved plate, and the claw provided at the window edge of the window hole corresponds to an inclined surface that rises and inclines outwardly of the sawtooth. The outer frame fixing device for an inspection port according to claim 2, wherein the fixing device is an inclined claw.

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