JP2012017579A - Observation window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold surely a transparent plate in an outer frame body and perform assembly work thereof safely and properly, for an observation window which is provided in a door or outer wall of a distribution board, switchboard, etc.SOLUTION: An observation window is composed of: a window opening 2 provided in a wallboard 8; an outer frame body 3 arranged on the outside of the window opening 2 and made of a rigid body; an inner frame body 4 arranged on the inside of the window opening 2 and made of a rigid body; an intermediate frame body 5 arranged between the outer frame body 3 and the inner frame body 4 and made of a rigid body; a transparent plate 6 arranged in the window opening 2 and fixedly sandwiched in advance by the outer frame body 3 and the intermediate frame body 5; and a waterproof packing 7 which performs mutual sealing of a periphery of the window opening 2 of the wallboard 8, the outer frame body 3, and the inner frame body 4 by fastening the outer frame body 3, including the intermediate frame body 5 and the transparent plate 6, and the inner frame body 4. Especially, the intermediate frame body 5 made of a rigid body is provided while the transparent plate 6 is fixedly sandwiched in advance by the outer frame body 3 similarly made of a rigid body.

Description

  The present invention relates to an improvement in a viewing window provided on a door, an outer wall, or the like of, for example, a distribution board or a distribution board.

  2. Description of the Related Art Conventionally, as this type of viewing window, for example, an outer frame body and a transparent plate that have been previously placed together to facilitate assembly work are known (see Patent Documents 1 to 3).

JP-A 63-42067 Utility Model Registration No. 2549183 Japanese Patent No. 2798174

  However, in such a case, since the transparent plate is held by the outer frame body and packing made of an elastic body, there is a possibility that the transparent plate may be deformed and the transparent plate may be inadvertently dropped or displaced. There was no safe and proper assembly work.

  The present invention was devised in view of the above-mentioned problems, and was devised to solve this problem. The problem is that the transparent plate is securely held on the outer frame body and the assembly work can be performed safely and appropriately. The purpose is to provide a viewing window that can be used.

  The viewing window of the present invention basically includes a window formed on the wall plate, an outer frame body made of a rigid body arranged outside the window, and an inner frame body made of a rigid body arranged inside the window. An intermediate frame made of a rigid body disposed between the outer frame body and the inner frame body, a transparent plate disposed in the window and sandwiched and fixed in advance by the outer frame body and the intermediate frame body, It is characterized by comprising a waterproof packing that seals between the outer periphery of the wall plate and the outer frame body and the inner frame body by fastening the outer frame body including the transparent plate and the inner frame body.

The transparent plate is clamped and fixed in advance by the outer frame body and the middle frame body. The outer frame including the inner frame and the transparent plate disposed outside the window and the inner frame disposed inside the window are fastened to hold the peripheral edge of the wall plate through waterproof packing. .
Since the outer frame body, the middle frame body, and the transparent plate can be assembled and integrated in advance at the factory, the assembly accuracy can be improved.
Since the outer frame body, the middle frame body, and the transparent plate are pre-assembled, the number of assembling steps at the site can be reduced, and the on-site work can be simplified and speeded up.
Since the transparent plate is clamped and fixed by the outer frame body and the inner frame body made of a rigid body, the transparent plate falls off or is displaced as compared with the case where the transparent plate is held using packing made of an elastic body, for example. There is no risk of assembly, and assembly work can be performed safely and appropriately.

  The outer frame body and the inner frame body have four frame shapes, and are provided with arc-shaped corner frames positioned at the four corners, linear side frames positioned at the four sides, and connecting means for detachably connecting them. Is preferred. In this way, the corner frame can be shared, and a viewing window having different vertical and horizontal dimensions can be obtained simply by changing the length of the side frame.

  The outer frame body including the middle frame body and the transparent plate preferably includes a temporary fixing means for temporarily fixing the window. In this way, the outer frame body including the inner frame body and the transparent plate can be held at the window by the temporary fixing means, and the fastening work with the inner frame body can be performed by one worker from the inside of the window. The

  The connecting means includes an insertion portion provided in the corner frame, a receiving portion provided in the side frame to receive the insertion portion, a wedge piece provided in the insertion portion, and a wedge piece formed on the receiving portion so that the wedge piece cannot be detached. It is preferable to provide an engaging groove to be engaged. In this way, the movement in the direction other than the separation is prevented by the fitting between the insertion portion and the receiving portion, and the movement in the separation direction is prevented by the engagement between the wedge piece and the engagement groove. Assembling of the frame and the side frame can be performed easily.

  It is preferable that the temporary fixing means includes a locking body that is provided on the outer frame body side and is rotatable from a hooking position that can be hooked on the inner side of the window peripheral edge to a storage position that is not hooked on the inner side of the window peripheral edge. In this way, when temporarily fixing, it can be performed simply by rotating the locking body.

  It is preferable that the locking body includes an operation piece for rotating. In this way, the locking body can be easily rotated by the operation piece.

  The locking body preferably includes a holding mechanism for holding the storage position. In this way, the locking body can be reliably held at the storage position by the holding mechanism except during temporary fixing.

  It is preferable that the holding mechanism includes a locking projection formed on the locking body and a locking recess formed on the middle frame and hooked and detached from the locking projection. In this way, the holding mechanism can be easily formed and the locking body can be reliably held in the accommodation position.

  The locking body is housed in a housing space formed between the outer frame body and the middle frame body and is rotatably supported by a fastener that fastens the outer frame body and the middle frame body. Is preferred. In this way, since the rotation shaft of the locking body and the fastener can be used together, the number of parts and the cost can be reduced.

According to the present invention, the following excellent effects can be achieved.
(1) Consists of a window, an outer frame body, an inner frame body, an inner frame body, a transparent plate, and waterproof packing. In particular, a rigid inner frame body is provided, and an outer frame body made of a rigid body is also provided. Therefore, since the transparent plate is held and fixed in advance, the transparent plate can be securely held on the outer frame, and the assembly operation can be performed safely and appropriately.
(2) The outer frame body and the inner frame body have a four-frame shape, and arc-shaped corner frames positioned at the four corners, linear side frames positioned at the four sides, and connecting means for detachably connecting them. If provided, the corner frame can be shared, and a viewing window having different vertical and horizontal dimensions can be obtained simply by changing the length of the side frame. As a result, the number of parts and cost can be reduced.
(3) If the outer frame body including the inner frame body and the transparent plate is provided with temporary fixing means for temporarily fixing to the window, the outer frame body including the inner frame body and the transparent plate depends on the temporary fixing means. It can be held at the window, and the fastening work with the inner frame can be performed by one worker from the inside of the window. As a result, it is possible to save labor and improve work efficiency.

The rear view which shows the inspection window of this invention. The exploded perspective view from the front. The exploded perspective view from the back. The principal part rear view which shows a temporary fix | stop means. The top view of FIG. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. The exploded view of FIG. The exploded view of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1 thru | or FIG. 9, the inspection window 1 is comprised from the window 2, the outer frame 3, the inner frame 4, the inner frame 5, the transparent board 6, and the waterproof packing 7, and the principal part is comprised, In this example, it has a horizontally long rectangular shape and is provided on a door or an outer wall of a distribution board or a distribution board. In the following description, the front means the front side or the outside (left side in FIGS. 6 and 7), and the back means the back side or the inside (right side in FIGS. 6 and 7).

  The window 2 is formed on the wall plate 8. In this example, the window 2 is formed in a rectangular shape with rounded corners on a wall plate 8 such as a door or an outer wall of a distribution board or a distribution board.

The outer frame 3 is arranged on the outside of the window 2 and is made of a rigid body. In this example, the outer frame 3 is made of an aluminum alloy, has a rounded four-frame shape, and has an arc-shaped corner frame positioned at the four corners. 9, a linear side frame 10 positioned on four sides, and a connecting means 11 that connects these with each other so as not to be detached.
The connecting means 11 includes an insertion portion 12 provided in the corner frame 9, a receiving portion 13 provided in the side frame 10 for receiving the insertion portion 12, a wedge piece 14 provided in the insertion portion 12, and a receiving portion 13. And an engaging groove 15 that is formed and engaged with the wedge piece 14 so as not to be detached. The wedge piece 14 and the engagement groove 15 are provided in two pairs, with a pair of left and right ones spaced apart.

The inner frame 4 is a rigid body arranged inside the window 2, and in this example, is made of an aluminum alloy like the outer frame 3, and has a rounded four-frame shape. Are provided with arcuate corner frames 16 positioned at the sides, linear side frames 17 positioned on the four sides, and connecting means 18 for connecting them in a non-detachable manner.
The connecting means 18 includes an insertion portion 19 provided in the corner frame 16, a receiving portion 20 provided in the side frame 17 for receiving the insertion portion 16, a wedge piece 21 provided in the insertion portion 19, and a receiving portion 20. An engagement groove 22 that is formed and engaged with the wedge piece 21 so as not to be detached, and a fastener 23 that fastens the insertion portion 19 and the receiving portion 20 are provided. The fastener 23 includes a screw hole formed in the insertion portion 19, a through hole formed in the receiving portion 20, and a screw inserted into the through hole and screwed into the screw hole.

The middle frame body 5 is a rigid body disposed between the outer frame body 3 and the inner frame body 4. In this example, the middle frame body 5 is made of an aluminum alloy like the outer frame body 3. It has a four-frame shape, and includes an arc-shaped corner frame 24 positioned at the four corners, a linear side frame 25 positioned at the four sides, and a connecting means 26 that connects these to the outer frame body 3. The middle frame 5 is not connected to the corner frames 24 and the side frames 25, and is connected to the outer frame 3 by connecting means 26.
The connecting means 26 includes a fastener 27 for fastening the corner frame 24 of the middle frame 5 and the corner frame 9 of the outer frame 3, the side frame 25 of the middle frame 5, and the side frame 10 of the outer frame 3. And a coupler 28 to be coupled. The fastener 27 is inserted into the through hole formed in the corner frame 9 of the outer frame body 3, the through hole formed in the corner frame 24 of the middle frame body 5, and is screwed into the screw hole. It consists of screws. The coupler 28 includes a wedge piece formed on the side frame 25 of the middle frame body 5, an engagement piece formed on the side frame 10 of the outer frame body 3 so that the wedge piece is engaged in a non-detachable manner, and the middle frame It consists of a protrusion formed on the side frame 25 of the body 5 and a recess formed on the side frame 10 of the outer frame 3 to which the protrusion is engaged.

  Thus, the outer frame body 3, the inner frame body 4, and the middle frame body 5 are provided with positioning means 29 between the corner frames 9, 16, 24. The positioning means 29 includes a protrusion 30 protruding from the back side of the corner frame 9 of the outer frame body 3, a through hole 31 formed in the corner frame 24 of the middle frame body 5 into which the protrusion 30 is fitted, and an inner frame And a protrusion 32 formed on the corner frame 16 of the body 4 and into which the remaining portion of the through hole 31 is fitted.

  The transparent plate 6 is disposed in the window 2 and is held and fixed in advance by the outer frame body 3 and the middle frame body 5. In this example, the transparent plate 6 is made of a transparent glass plate and has four corners at 45 degrees. It has an octagonal shape cut one by one.

  The waterproof packing 7 is formed by fastening the outer frame 3 including the inner frame 5 and the transparent plate 6 and the inner frame 4 to each other between the periphery of the window 2 of the wall plate 8 and the outer frame 3 and the inner frame 4. In this example, it is made of an elastic body such as rubber and has a four-frame shape with rounded corners and a substantially U-shaped cross section. A circumferential groove 33 to be fitted is provided.

  Fasteners 34 that fasten the outer frame 3 including the inner frame 5 and the transparent plate 6 and the inner frame 4 are formed on the protrusions 30 of the positioning means 29 protruding from the corner frame 9 of the outer frame 3. Screw holes, through holes formed in the corner frame 14 of the inner frame body 4, screws inserted through the through holes and screwed into the screw holes, and through holes formed in the side frame 25 of the intermediate frame body 5. It consists of a hole, a through hole formed in the side frame 17 of the inner frame body 4, and a screw such as a drill screw that is inserted into the through hole and screwed into the through hole.

The outer frame body 3 including the inner frame body 5 and the transparent plate 6 is provided with temporary fixing means 35 for temporarily fixing the window 2.
The temporary fixing means 35 includes a locking body 36 that is provided on the outer frame body 3 side and is rotatable from a hooking position that can be hooked to the inside of the periphery of the window 2 to a storage position that is not hooked to the inside of the window 2 periphery. .
The locking body 36 includes an operation piece 37 for rotating and a holding mechanism 38 for holding the storage position, and the storage body 36 is formed between the outer frame body 3 and the middle frame body 5. It is accommodated in the space 39 and is rotatably supported by a fastener 34 that fastens the outer frame body 3 and the intermediate frame body 5.
The holding mechanism 38 includes a hemispherical locking convex portion formed on the locking body 36 and a hemispherical locking concave portion formed on the intermediate frame 5 and engaged with and disengaged from the locking convex portion.

Next, the operation will be described based on such a configuration.
The waterproof packing 7 is fitted to the periphery of the window 2 of the wall plate 8 using the circumferential groove 33.
The outer frame body 3 is secured to the outer frame 3 by the insertion portion 12 of the corner frame 9 being inserted into the receiving portion 13 of the side frame 10 and the wedge piece 14 being engaged with the engagement groove 15 (so-called fitting killing). And assembled into a four-frame shape.
In the inner frame body 4, the insertion portion 19 of the corner frame 16 is inserted into the receiving portion 20 of the side frame 17, the wedge piece 21 is engaged with the engagement groove 22, and additionally, the inner frame body 4 is fastened by the fastener 23. And is assembled in a four-frame shape.

An adhesive 40 is applied to the portion of the outer frame 3 that holds the transparent plate 6, and the periphery of the transparent plate 6 is bonded.
The outer frame body 3 and the intermediate frame body 5 are formed by fastening the corner frames 9 and 24 by the positioning means 29 after the locking body 36 of the temporary fixing means 35 is accommodated in the accommodating space 39. 27 and the side frames 10 and 25 are coupled to each other by the coupling tool 28.
For this reason, the transparent plate 6 is bonded and sealed to the outer frame 3 by the adhesive 40 and is held and fixed by the outer frame 3 and the middle frame 5. The locking body 36 of the temporary fixing means 35 is rotatably supported by the fastener 27.

The outer frame body 3 including the intermediate frame body 5 and the transparent plate 6 can be engaged with the engaging body 36 of the temporary fixing means 35 on the inside of the periphery of the window 2 after being inserted into the window 2 from the outside of the window 2. Temporarily fixed depending on the position.
The outer frame 3 including the temporarily fixed inner frame 5 and the transparent plate 6 and the inner frame 4 arranged inside the window 2 hold the periphery of the window 2 of the wall plate 8 through the waterproof packing 7. It is fastened by the fastener 34 as much as possible. The outer frame body 3 and the inner frame body 4 including the middle frame body 5 and the transparent plate 6 are positioned by positioning means 29.
Thereafter, the locking body 36 of the temporary fixing means 35 is rotated to the accommodation position and is held at the same position by the holding mechanism 38.

Since the outer frame body 3, the intermediate frame body 5 and the transparent plate 6 can be assembled and integrated in advance at the factory, the assembling accuracy can be improved.
Since the outer frame body 3, the intermediate frame body 5 and the transparent plate 6 are assembled in advance, the number of assembling steps at the site can be reduced, and the on-site work can be simplified and speeded up.
Since the transparent plate 6 is clamped and fixed by the outer frame body 3 and the middle frame body 5 made of a rigid body, the transparent plate 6 falls off compared to the case where the transparent plate 6 is held using, for example, packing made of an elastic body. There is no risk of misalignment or misalignment, and assembly work can be performed safely and appropriately.

  The outer frame body 3 and the inner frame body 4 have a four-frame shape, and arc-shaped corner frames 9 and 16 positioned at the four corners, and linear side frames 10 and 17 positioned at the four sides, which are connected to each other so as not to be detached. Since the connecting means 11 and 18 are provided, the corner frames 9 and 16 can be shared, and the observation window 1 having different vertical and horizontal dimensions can be obtained by merely changing the lengths of the side frames 10 and 17. Of course, the side frames 10 and 17 can also be formed into molds.

  Since the outer frame body 3 including the intermediate frame body 5 and the transparent plate 6 includes temporary fixing means 35 for temporarily fixing to the window 2, the outer frame body 3 including the intermediate frame body 5 and the transparent plate 6 is temporarily attached. It can be held at the window 2 by the stop means 35, and the fastening work with the inner frame 4 can be performed by one worker from the inside of the window 2.

In the above example, the viewing window 1 has a horizontally long rectangular shape. However, the viewing window 1 is not limited to this and may have a square shape or a vertically long rectangular shape.
In the previous example, the outer frame body 3, the inner frame body 4 and the middle frame body 5 are made of an aluminum alloy. However, the outer frame body 3, the inner frame body 4 and the middle frame body 5 are not limited to this. good.

  DESCRIPTION OF SYMBOLS 1 ... Peeping window, 2 ... Window, 3 ... Outer frame body, 4 ... Inner frame body, 5 ... Middle frame body, 6 ... Transparent board, 7 ... Waterproof packing, 8 ... Wall board, 9 ... Corner frame, 10 ... Side Frame 11, connecting means 12, inserting portion 13, receiving portion 14, wedge piece 15, engaging groove 16 corner frame 17 side frame 18 connecting means 19 inserting portion 20 Receiving part, 21 ... wedge piece, 22 ... engaging groove, 23 ... fastener, 24 ... corner frame, 25 ... side frame, 26 ... coupling means, 27 ... fastener, 28 ... coupling tool, 29 ... positioning means, 30 DESCRIPTION OF SYMBOLS ... Projection, 31 ... Through-hole, 32 ... Projection, 33 ... Circumferential groove, 34 ... Fastener, 35 ... Temporary fixing means, 36 ... Locking body, 37 ... Operation piece, 38 ... Holding mechanism, 39 ... Storage space, 40: Adhesive.

Claims (4)

  A window formed in the wall plate, an outer frame made of a rigid body arranged outside the window, an inner frame made of a rigid body arranged inside the window, and between the outer frame and the inner frame An inner frame made of a rigid body, a transparent plate placed in a window and sandwiched and fixed in advance by the outer frame and the inner frame, and an outer frame and an inner frame including the inner frame and the transparent plate A sight glass characterized by comprising a waterproof packing that seals between the outer peripheral frame body and the inner frame body, and the peripheral edge of the window board by fastening to the wall panel.   The outer frame body and the inner frame body have four frame shapes, and are provided with arc-shaped corner frames positioned at the four corners, linear side frames positioned at the four sides, and connecting means for detachably connecting them. The viewing window according to claim 1.   The viewing window according to claim 1, wherein the outer frame body including the intermediate frame body and the transparent plate is provided with temporary fixing means for temporarily fixing to the window.   The connecting means includes an insertion portion provided in the corner frame, a receiving portion provided in the side frame to receive the insertion portion, a wedge piece provided in the insertion portion, and a wedge piece formed on the insertion portion so that the wedge piece cannot be detached. The viewing window according to claim 2, further comprising an engaging groove to be engaged.

Images