JP2007064615A - Arrangement method of fixed pedestal of ventilation fans arranged behind wall, and fixed pedestal - Google Patents

Abstract

An object of the present invention is to make it possible to securely fix a fixed base of a ventilation fan disposed on the back of a wall at a predetermined fixing position only by an operation from the front side of the wall.
A fixed pedestal S having a front opening 3 that can face the wall front side from the through hole 43 is formed in a wall in the vicinity of a position where a through hole 43 is to be formed in a ceiling plate 41 constituting the ceiling wall W. A string (an attracting tool) that is arranged in advance, has a through hole 43 formed at the position where the fixed base S is disposed from the wall front side, and the fixed base S is inserted into the wall from the through hole 43 from the wall front side. ) 34 is forcibly moved in the wall so that the front opening 3 of the fixed base S faces the front side of the wall from the through hole 43, and the normal arrangement posture is maintained. The fixed base S is fixed to the ceiling plate 41 or the crosspiece in the wall from the front side of the wall while the movement of the fixed base S with respect to the through hole 43 is suppressed by the string body (movement suppressing portion) 34 provided on the fixed base S. .
[Selection] Figure 1

Description

  The present invention relates to a method for arranging a fixed base of a ventilating fan that is fixedly arranged on the back of a wall plate constituting a wall or a structure in the wall, and a fixed base.

  In order to fix ventilation fans such as ventilation fans and ventilation fan hoods to the wall, the ventilation fan is attached to a wooden frame called “Toki” fixed to the structure on the back of the wall or the periphery on the back side of the opening to be formed in the wall plate. The position of the ventilation fan is detected from the wall surface side, a through hole is formed in the wall plate from the wall surface side, and the opening of the ventilation fan faces the wall surface side through the through hole. It was. In this method, it is necessary to detect ventilation fans on the back of the wall from the front side of the wall, and if a detection error is made, the opening must be closed and the ventilation fans are displaced and fixed with respect to the planned position. Had a problem that there was no way to fix it.

As another method for arranging ventilation fans on the back of the wall, through holes are formed in the wall plate from the front side of the wall, and a fixing base of the ventilation fans is inserted into the back of the wall from the through hole and fixed to the wall plate. It was. Specifically, the tubular body in the wall was pulled out from the through hole, the tubular body and the fixed base were connected on the wall front side, and pushed back into the wall from the through hole. For this reason, when pulling out the pipe body from the back of the wall, the wall plate around the through hole is scraped and destroyed, and the pipe body itself is also damaged. It is necessary to pull out the pipe body from the wall for connection with the fixed base, and when pushing the drawn pipe body back into the wall, the pipe body is abnormally bent or deformed in the wall, and ventilation ( There were also problems that hindered ventilation.
JP 7-63388 A

  An object of the present invention is to make it possible to securely fix a fixed base of a ventilation fan disposed on the back of a wall at a predetermined fixed position only by an operation from the front side of the wall.

  In order to solve the above-mentioned problem, the invention according to claim 1 is to fix a fixed pedestal of a ventilation fan disposed on the wall back to a wall plate constituting the wall or a structure in the wall, and A method of disposing the fixed base, wherein a fixed base having an opening that can face the wall front side from the through hole is formed in a wall in the vicinity of a position where a through hole is to be formed in a wall plate constituting the wall. A through hole is formed in advance from the front side of the wall at the position where the fixed pedestal is disposed, and the fixed pedestal is forced through the wall from the front side of the wall by a finger or a drawing tool inserted into the wall from the through hole. A movement restraining portion provided on the fixed base so as to maintain the normal placement posture so that the opening of the fixed base faces the wall surface side from the through hole. While suppressing the movement of the fixed pedestal relative to the through hole, the fixed pedestal is mounted on the wall plate or wall from the front side of the wall. It is characterized in that fixed to the structure.

  According to the first aspect of the present invention, the through hole is formed at the position where the fixed pedestal is known, and the through hole is formed in the wall in the vicinity of the planned formation position of the through hole before the through hole is formed. The fixed pedestal is forcibly moved in the wall to the position of the through-hole with fingers or an attracting tool, and in the through-hole part, the normal arrangement posture is set so that the opening faces the wall surface from the through-hole. The step of arranging the fixed pedestal in the through hole and the movement of the fixed pedestal with respect to the through hole are suppressed by the movement suppressing portion provided in the fixed pedestal so that the fixed pedestal maintains a normal arrangement posture. And fixing the fixed pedestal to the wall plate or the structure in the wall from the front side of the wall, so that the pipe body in the wall is not pulled out to the front side of the wall at the known fixed pedestal placement position. The fixed pedestal is placed on the wall plate or the structure in the wall from the front side of the wall while being placed in the wall. It can be fixed.

  As described above, according to the first aspect of the present invention, the position of the fixed pedestal arranged on the back of the wall is detected from the front side of the wall and a through hole is formed in the wall plate corresponding to the detected position. Generation of abnormal bending, abnormal deformation, etc. of the tube in the conventional method in which the tube is pulled out from the through hole formed in the wall plate to the front side of the wall and connected to the fixed base, and then inserted into the wall again. Therefore, the fixed base can be reliably disposed at the regular arrangement position only by the operation from the front side of the wall.

  The invention of claim 2 is a method of fixing a fixed base of a ventilation fan arranged on the back of a wall to a wall plate constituting the wall, and disposing the fixed base on the back of the wall, A fixed pedestal having an opening that can face the wall surface side from the through hole is arranged in advance in a wall near the formation position of the through hole formed in the wall plate to be configured, and the fixed pedestal is arranged from the wall surface side. A through hole is formed at the installation position, and the fixed pedestal is forcibly moved in the wall from the front side of the wall by a finger or a drawing tool inserted into the wall from the through hole. While maintaining the regular installation posture so as to face the wall surface side, the movement control part provided on the fixed base so as to maintain the regular installation posture suppresses the movement of the fixed base relative to the through hole, By attaching ventilation fans installed on the front side of the wall to the fixed base, the regular It is characterized in that for fixing the fixing base to the wall plate in SEQ 設姿 bias.

  In the invention of claim 2, the fixed pedestal placed in advance in the wall by fingers or a drawing tool is placed in a regular arrangement posture such that the opening faces the wall front side from the through hole, and the inside of the wall is forced And a ventilation fan installed from the wall surface side to the wall surface side while suppressing the movement of the fixed pedestal with respect to the through hole by the movement suppressing part provided in the fixed pedestal so as to maintain a regular arrangement posture. And a step of fixing the fixed base to the wall plate in the regular arrangement posture by being attached to the fixed base, so that the fixed base is installed on the wall surface side corresponding to the installation position of the fixed base. By attaching the ventilating fan to the fixed pedestal in a state where the movement is suppressed behind the wall, the fixed pedestal can be fixed to the wall plate at the peripheral edge of the through hole at the regular arrangement position.

  Further, the invention of claim 3 is the invention of claim 1 or 2, wherein the pipe material to be piped in the wall is arranged in the wall in advance in the connecting portion provided in the fixed base. It is characterized by that.

  According to the third aspect of the present invention, when the fixed base is forcibly moved to the through hole portion with fingers or a drawing tool in the wall, the piping material connected to the fixed base is also moved together. When the fixed pedestal is set to the normal arrangement posture, the piping material is also relocated to the optimum position following the fixed pedestal. With the piping material connected to the fixed pedestal in the wall, the fixed pedestal is arranged with the opening from the through hole facing the wall surface in a regular installation posture. If the fixed base is arranged in a state where it is connected to the piping material, there is no need to perform any work such as changing the piping position of the piping material in the wall. For this reason, the work man-hour of the piping work of the piping material connected to the fixed base is reduced, and the labor of the piping work is reduced.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the movement suppressing portion is pulled out from the through hole to the wall surface to suppress the movement of the fixed base. According to the fourth aspect of the present invention, the movement restraining part can be operated to restrain the movement of the fixed base in a state in which the movement restraining part provided on the fixed base is pulled out from the through hole to the wall surface with few operation restrictions. Therefore, it becomes easy to perform an operation for suppressing the movement of the fixed base.

  Further, the invention of claim 5 is a ventilating fan which is arranged on the back of the wall in advance and is fixed to the wall plate in a state where the opening faces the wall front side from a through hole formed in the wall plate constituting the wall. A fixed pedestal, wherein the fixed pedestal is provided on an opening formed in the pedestal main body and a peripheral edge of the opening of the pedestal main body, and prevents the fixed pedestal from coming out from the through hole to the front side of the wall. A ventilation fan installed on the wall surface from the wall surface side in order to fix the position of the pedestal main body with respect to the through hole in a state where the contact portion and the opening in the back of the wall face the wall surface from the through hole And a fixing portion that allows the wall plate to be clamped and fixed between the ventilation fan and the pedestal main body by screwing through the periphery of the through hole of the wall plate and the through hole of the wall plate, and through when the fixed pedestal is fixed to the wall plate Is the front side of the wall to suppress the displacement of the opening relative to the hole? Can inhibit operation, yet it is characterized in that it comprises a shift suppressing portion formed on the base body so as not to interfere with the sandwiching against the wall plate.

  According to the invention of claim 5, the pedestal with respect to the wall plate is prevented by the movement suppressing portion formed in the pedestal main body so that the opening of the fixed pedestal arranged on the back of the wall is not displaced with respect to the insertion hole of the wall plate. With the movement of the main body suppressed, from the front side of the wall, when the screws that penetrate the peripheral edges of the ventilating fans installed on the front side of the wall and through the wall plate are screwed into the fixed part of the pedestal main body behind the wall, The pedestal main body is fixed to the wall plate in a state where the wall plate is sandwiched between the ventilation fans on the wall surface and the pedestal main body on the back of the wall.

  Further, the invention of claim 6 is a ventilation fan that is preliminarily arranged on the back of the wall and fixed to the structure in the wall with the opening facing the front side of the wall from the through hole formed in the wall plate constituting the wall. The fixed pedestal is provided at an opening formed in the pedestal main body and a peripheral edge of the opening of the pedestal main body, and prevents the fixed pedestal from coming out from the through hole to the wall surface side. In a state where the wall back contact portion and the opening in the wall back face the wall surface from the through hole, in order to fix the position of the pedestal main body with respect to the through hole, or directly on the structure in the wall When fixing the fixing portion that can be fixed to the wall plate from the wall surface and the fixing base to the wall plate, it is possible to perform a suppression operation from the wall surface side to suppress the positional deviation of the opening with respect to the through hole, and to the wall plate. It is formed on the pedestal body so as not to prevent pinching It is characterized in that it comprises a shift suppressing portion.

  According to the sixth aspect of the present invention, the pedestal with respect to the wall plate is prevented by the movement restraining part formed in the pedestal main body so that the opening of the fixed pedestal arranged on the back of the wall is not displaced from the insertion hole of the wall plate. In a state where the movement of the main body is suppressed, tools are inserted from the front side of the wall into the through hole of the wall plate, and the fixing portion of the pedestal main body is fixed to the structure in the wall or the wall plate. For this reason, a base main body can be reliably fixed to the structure in a wall from the wall front side.

  A seventh aspect of the invention is characterized in that, in the fifth or sixth aspect of the invention, the movement suppressing portion is formed so as to protrude into the opening of the base body. According to the seventh aspect of the present invention, since the movement suppressing portion is formed in the opening of the pedestal main body in a state of facing the wall surface from the through hole formed in the wall plate, the finger inserted through the through hole In the state where the displacement of the opening of the base body relative to the through hole of the wall plate is prevented by gripping the movement suppressing unit or hooking tools inserted through the through hole to the movement suppressing unit, The base body can be fixed to the structure inside the wall.

  The invention of claim 8 is characterized in that, in the invention of claim 5 or 6, the movement restraining portion is a hooking portion formed to project from the opening end of the pedestal main body toward the wall surface side. According to the invention of claim 8, the position of the opening of the pedestal body relative to the through hole of the wall plate is obtained by hooking the hook portion protruding from the opening end of the pedestal main body toward the wall surface side to the through hole of the wall plate. The base body can be fixed to the wall plate or the structure in the wall in a state where the displacement is prevented.

  The invention of claim 9 is characterized in that, in the invention of claim 5 or 6, the movement suppressing portion is a string body having a length extending to the front side of the wall through the through hole. According to the ninth aspect of the present invention, the position of the opening of the pedestal main body relative to the through hole of the wall plate can be prevented by pulling the string body drawn to the wall surface through the through hole of the wall plate to the wall surface side. In particular, in the configuration in which the pedestal body is clamped and fixed to the wall plate by screwing in as in the invention of claim 5, when the screw is screwed into the fixing portion of the pedestal body by pulling the string body to the wall surface side. In this case, it is possible to prevent the pedestal body from separating from the wall plate, and the screw can be smoothly inserted.

  The invention of claim 10 is characterized in that, in the invention of claim 5 or 6, the movement restraining portion is a rod-like member having rigidity installed in the opening of the base body. According to the invention of claim 10, the pedestal main body can be pressed against the wall plate with a large force by directly grasping the rod-like member with the hand of the operator inserted through the through hole of the wall plate and pulling it to the front side of the wall. Thus, it is possible to prevent the positional deviation of the opening of the base body with respect to the through hole of the wall plate. Further, in the configuration in which the pedestal main body is clamped and fixed to the wall plate by screwing in as in the fifth aspect of the invention, the screw can be screwed more smoothly into the fixing portion of the pedestal main body.

  An eleventh aspect of the invention is the invention according to any one of the fifth to tenth aspects, wherein the fixed base has a cylindrical wall portion whose one end is the opening, and the movement suppressing portion is the cylindrical wall. It is characterized by being comprised by the recessed part formed in the vicinity of the opening side of a part. According to the invention of claim 11, an operator's hand is put into the through-hole of the wall plate from the wall surface side, and the fingertip or the like is hooked on the recess formed in the vicinity of the opening side of the cylindrical wall portion. The positional deviation of the opening of the base body with respect to the through hole can be easily prevented.

  The invention according to claim 12 is the invention according to any one of claims 5 to 10, wherein the through hole is sized to allow a human hand to enter, and the movement suppressing portion can be gripped. It is a feature. According to the invention of claim 12, the position of the opening of the pedestal main body with respect to the through hole of the wall plate by putting the operator's hand into the through hole of the wall plate from the wall front side and hooking the fingertip or the like on the movement suppressing portion. Misalignment can be easily prevented.

  The invention according to claim 13 is the invention according to any one of claims 5 to 11, wherein the movement restraining portion pulls the fixed base so that the opening of the base body faces the through hole. It is also characterized by using a gathering part. According to the invention of claim 13, the movement restraining portion has the original function of preventing the positional displacement of the opening of the base body with respect to the through hole of the wall plate, and the opening of the fixed base arranged in the wall penetrates the wall plate. It also functions as a drawing part that draws the fixed base so that it faces the hole.

  According to the method for disposing the fixed base according to the present invention, the through hole is formed from the front side of the wall to the position where the fixed base is disposed, and the fixed base that has been disposed on the back of the wall before the formation of the through hole is moved with a finger or a finger. Forcibly move the inside of the wall with a parcel, and set the fixed pedestal so that the opening of the fixed pedestal faces the wall surface from the through hole. In order to fix the fixed pedestal from the wall surface side to the wall plate or the structure in the wall while suppressing the movement of the fixed pedestal relative to the through hole by the provided movement restraining part, the through hole is obtained only by operation from the wall surface side. The fixed pedestal can be fixed to the back of the wall in a regular arrangement posture so that the opening faces the wall surface.

  Further, according to the fixed pedestal according to the present invention, the wall of the fixed pedestal disposed on the back of the wall is prevented from being displaced with respect to the insertion hole of the wall plate by the movement suppressing portion formed in the pedestal main body. With the movement of the pedestal body relative to the board suppressed, the screws that penetrate the peripheral edges of the ventilators and the wall board installed on the wall surface are screwed into the fixed part of the pedestal body behind the wall from the front side of the wall. Then, the pedestal body can be fixed to the wall plate in the state where the wall plate is sandwiched between the ventilation fan on the wall surface and the pedestal main body on the back of the wall, or the tools from the wall surface side to the through hole of the wall plate To fix the fixing portion of the pedestal main body to the structure in the wall.

  Hereinafter, the present invention will be described in more detail with reference to a plurality of best embodiments.

  FIG. 1 is a perspective view of a fixed base S according to the present invention disposed on the back of a wall and a ventilation fan V disposed on a portion from the wall surface to the back of the wall and fixed to the fixed base S. FIG. 3 is a front view of the fixed base S, FIG. 3 is a sectional view taken along line XX of FIG. 2 in the installation posture of the fixed base S, and FIG. 4 is a perspective view in the installation posture of the fixed base S. FIG. 5 is a perspective view of the fixed base S in a state in which the string body 34 for suppressing movement of the fixed base S is hung down. Further, the fixed base S of the present embodiment is disposed horizontally with the front plate portion 1 in contact with the back surface of the ceiling plate 41 of the ceiling wall W, and the ventilation fan V is disposed on the ceiling wall W. In addition, since it is also used when the ventilation fan V is arranged on the side wall, the description of each part is arranged on the side wall in addition to the case where it is arranged on the ceiling wall W which is an example of use of the present invention. The case will be described. Regarding the vertical and horizontal directions of the fixed base S, the direction of the vertical side plate portion 4 is defined as the vertical direction.

1 to 4, the basic shape of the pedestal main body 10 of the fixed pedestal S is a short cylindrical duct connecting tube 2 for inserting a ventilation duct D in the central portion of the substantially square front plate portion 1. Are integrally formed toward the rear side, and a front opening 3 concentric with the duct connecting tube 2 is opened at the center of the front plate portion 1. The vertical side plate portion 4 and the horizontal side plate portion 5 are integrally formed toward the back side, respectively, and are symmetric with respect to the vertical center line C ₁ . Each of the vertical and horizontal side plate portions 4 and 5 has a shape in which the central portion in the longitudinal direction is formed lower than both end portions by a predetermined length, and the concave portions 6 and 7 are formed in the central portion in the longitudinal direction, respectively. . The depth of the recess 6 of the vertical side plate portions 4, shallower than the depth of the recess 7 of the lateral side plate 5 Te (small), the recess 7 of the horizontal plate portion 5 is a symmetrical shape with respect to the longitudinal center line C ₁ but the concave portion 6 of the vertical side plate portion 4 is made asymmetrical with respect to the transverse center line C ₂ is formed by Henhen on one side.

At the time of fixing the fixed base S, the vertical beam 8 is integrally formed in the concave portion 6 of the vertical side plate portion 4 fixed to the structure such as a back wall or the like in the vertical direction slightly on the back side from the front surface. A wide first horizontal beam 9 is formed at the center in the longitudinal direction of the vertical beam 8 so as to face the back side. The upper and lower sides of the first horizontal beam 9 are respectively provided with a second and a third at a predetermined interval. Each crosspiece 11 and 12 is formed toward the back side. The upper ends of the vertical bars 8 and the second and third horizontal bars 11 and 12 are on the same plane as the contact surfaces 4a at both ends in the longitudinal direction of the vertical plate part 4, and When fixing to a structure, all contact | abut to the side surface of a structure. The upper end surface of the first horizontal rail 9 in which the screw insertion hole 13 is formed is formed slightly lower than the contact surface 4a of the vertical side plate portion 4, and is in direct contact with the structure when the fixing base S is fixed. do not do. A screw insertion hole 13 opened on the back side is formed in the wide first horizontal rail 9 along the front-rear direction (the width direction of the vertical side plate portion 4). The rear side portion of the third horizontal rail 12 is formed in a cantilever shape, and a small piercing portion 12a is formed on the upper end surface of the free end portion. In addition, a small piercing portion 8a is formed in each of a plurality of pairs (a pair in the embodiment) as a pair in the portion that is vertically distributed by the screw insertion holes 13. Wherein each of the small piercing parts 8a, 12a, the through screw insertion holes one inserted through the 13 bis B ₂ when fixing the fixed base S to the structure, is pierced to the structure, particularly the structure of the side wall when fixing the object, fixed base S is not Megura and around the screws B _2. The portion above the horizontal center line C ₂ of the front side of the vertical bridge 8, a fixing base S for the purpose of displaying the center position when secured to the structure of the side walls, the transverse center line C ₂ A center position display protrusion 14 for displaying the position is formed. The second rungs 11 of the lower is not present on the transverse center line C _2, wherein the end face of the rear side of the second rungs 11, the transverse center line C ₂ on the rear side of the fixing base S A center position display projection 15 (see FIG. 3) for displaying the position is provided. Further, above and below the cantilevered portions of the upper and lower third horizontal bars 12, a cantilevered fourth horizontal bar 16 having a small piercing portion 16a formed at the free end is provided.

Further, in the position above the horizontal center line C ₂ of the front plate portion 1 and the duct connecting tube 2, a left-right pair for inserting the driver 20 to rotate the screws B ₃ which is inserted into the screw insertion hole 13 from the wall front driver insertion hole 21 and the transverse center line C ₂ communicates with the front opening 3 of the central portion are formed in parallel. The reason why the driver insertion hole 21 is formed while avoiding the position of the lateral center line C ₂ is as follows. That is, the front plate body 51 of the ventilation fan V fixed to the fixed base S has a screw insertion hole formed on the horizontal center line thereof. This is because a screw threaded pilot hole H needs to be formed in the portion of the horizontal center line C ₂ of the front plate portion 1. The upper and lower ends of the vertical side plate portion 4 extend beyond the horizontal side plate portion 5 by a predetermined length, and the extended portion 4b has two screw insertion holes 17 that are open on the front and back sides on the same line. Is formed. By using this screw insertion hole 17, instead of fixing the fixed base S to the structure behind the wall with one screw B ₂ inserted through the central screw insertion hole 13, the upper and lower screw insertion holes 17 are provided. The fixed pedestal S can be fixed to the structure in the side wall by the _two screws B ₂ inserted therethrough.

A number of screw screws for screwing screws B ₁ for temporarily fixing the base body 10 to the ceiling plate 41 and screws B ₂ for fixing the front plate body 51 of the ventilation fan V are respectively screwed into the front plate portion 1 of the fixed base S. An entrance hole H is formed. The position of the screw insertion hole formed in the front plate body 51 of the ventilation fan V varies depending on the manufacturer or the same manufacturer for each model, and the position of the screw insertion hole is investigated. Then, from the viewpoint of the least common multiple so that almost all of the ventilation fans V can be fixed, the position of the screw threaded lower hole H formed in the front plate portion 1 is determined. That is, the front plate portion 1, bis screwed into the prepared hole group H ₀ of a number of screws screwed into the prepared hole H is formed densely plurality of groups became group (group 8 in the embodiment) scattered Is formed. That is, a screw threaded pilot hole group H ₀ is formed at each of the front plate portion 1 where the vertical and horizontal center lines C ₁ and C ₂ cross each other and each corner portion where the front plate portion 1 crosses each diagonal direction. Is formed. In each screw screwed lower hole group H ₀ , a large number of screw screwed lower holes H are arranged densely at the same pitch in both the vertical and horizontal directions in a state where they are arranged vertically and horizontally. As shown in FIGS. 3 and 4, the portion where the screw threaded lower hole group H ₀ is formed in the front plate portion 1 is far more than the general part where the screw threaded lower hole group H ₀ is not formed. The thick portion 1a is formed thick. The screw threaded lower hole H is a non-through hole, and a tapered first lower hole H ₁ opened on the front surface and a second lower hole H ₂ having the same inner diameter opened on the rear surface are on the same axis. It is formed discontinuously on the line (see FIG. 3).

  In addition, a portion of the rear end edge of the duct connection tube 2 that is opposed to the upper and lower sides is a pasting margin when the ventilation duct D inserted in the duct connection tube 2 and the duct connection tube 2 are connected with the tape 18. A pasting margin piece 22 is formed to extend rearward. By connecting the duct connecting tube 2 and the ventilation duct D inserted therein by the tape 18 in the portion of the pasting piece 22, the duct connecting tube 2 is connected in the circumferential direction with a wide width. And the ventilation duct D are securely connected. In this respect, when the pasting piece 22 is not present, it is possible to improve the problem that it is necessary to wind the tape several times at the connection portion between the duct connection cylinder 2 and the ventilation duct D.

Further, since all of the pasting margin piece 22 protrudes from the rear end surface of the vertical side plate portion 4 to the rear (back side) by a length (L), when a plurality of fixed bases S are stacked, The piece 22 becomes an obstacle. Therefore, an upper pasting piece insertion groove 23 in which the front shape into which the upper pasting piece 22 can be inserted in the upper end portion of the front opening 3 when the fixed base S is overlapped has an arc shape is formed. In addition, a substantially lower half portion of the front opening 3 is formed with an elliptical arc-shaped lower bonding margin insertion groove 24 so that most of the lower bonding margin 22 can be inserted. A portion for forming the ventilation duct D inserted in the duct connecting tube 2 is restricted at a formation end portion on the back side of the lower pasting allowance piece insertion groove 24 and intersecting the longitudinal center line C ₁ . The insertion restricting piece 25 is formed to be foldable. The insertion restricting piece 25 is provided when the end face on the insertion side of the ventilation duct D is severely inclined and cut, as shown by a two-dot chain line in FIG. This is to prevent the portion having the maximum acute angle from protruding beyond the front surface of the pedestal main body 10 and coming into contact with the indoor ceiling plate 41. A pair of upper and lower detection devices for inserting and attaching both ends of a rod-like detection device 31 described later at a portion intersecting with the longitudinal center line C _{1 at} the periphery of the front opening 3 of the front plate portion 1. An attachment groove 26 is formed. 2 to 4, reference numeral 27 denotes a plurality of cable insertion holes formed in the periphery of the front opening 3 for inserting the cable of the ventilation fan V, and 28 denotes the front opening 3 in the front plate portion 1. It shows a transverse center line C ₂ and part formed center position display groove intersecting the periphery of.

  Further, when used by being fixed to the structure in the side wall, the center of the lateral side plate part 5 which is the lower side, and the edge on the back side is the periphery of the front opening 3 in the front plate part 1 A detection object 31 in the form of a plate bar attached to a pair of detection object attachment grooves 26 formed one above the other is connected so as to be detachable. In other words, the detection tool 31 is a member that enables detection of the fixed base S that has already been fixed (installed) from the wall surface when it is used by being fixed to a structure in the side wall. The permanent magnet M is inserted and held inside a magnet holding portion 33 that is integrally formed at the center in the longitudinal direction of the landing rod 32. When the detection tool 31 is broken from the pedestal main body 10 and both ends of the attachment rod 32 are inserted into a pair of detection tool attachment grooves 26 formed on the front surface of the pedestal main body 10, the center of the front opening 3 is formed. A permanent magnet M is arranged.

Further, as shown in FIGS. 2 to 5, the fixed base S is temporarily fixed to the ceiling plate 41 of the ceiling wall W using the screws B ₁ , or the screws B ₂ are fixed to the temporarily fixed base S. When used to fix the front plate body 51 of the ventilation fan V or the like, an endless shape (loop shape) which is a suppression preventing member for suppressing the movement of the fixed base S with respect to the through hole 43 formed in the ceiling plate 41 A string body 34 is attached. The endless string 34 is disposed so as to hang down from the front side of the pedestal main body 10 by being inserted through a pair of detection tool attachment grooves 26 formed facing the front opening 3 of the pedestal main body 10. It is divided into two parts: a part that is wound around the outer peripheral surface of the duct connection tube 2 on the back side of the pedestal main body 10, or a part that is hooked on the rear end surface of the duct connection tube 2. That is, the loop-shaped string body 34 has a circumferential length that is largely drawn to the wall surface side in use. When the pedestal main body 10 is used by being fixed to a structure in the vertical wall, a protruding piece 5a protruding further rearward from the rear end surface (end surface on the back side) is provided at the center portion of the lateral side plate portion 5 that is above. A string body insertion groove 5b is formed at the center and both ends of the projecting piece 5a so as not to be pulled out in a doubled state when the string body 34 is not used. It is formed along the width direction of the portion 5 (front and rear direction when viewed from the whole pedestal main body 10). Therefore, when the pedestal body 10 is stored or not in use, such as during transportation, the front side of the pedestal body 10 has a string between the pair of detection object mounting grooves 26 as shown in FIG. A part of the body 34 is stretched in a straight line, and on the back side of the pedestal main body 10, the extra length part 34 a that is brought into close contact with the outer periphery of the duct connection cylinder 2 is made into a double side plate part. 5 is wound around the protruding piece 5a and inserted into and locked in the string insertion groove 5b of the protruding piece 5a. As a result, when the fixed base S is not used, the string body 34 is integrally attached to the base body 10 without hanging down unnecessarily or extending sideways, so that the fixed base S There are no obstacles during storage or transportation. When in use, the string body 34 attached to the pedestal main body 10 as described above can be obtained by pulling the straight portion 34b that extends straight on the front side of the string body 34 downward. It is solved immediately and becomes an endless shape (loop shape) as shown in FIG.

Next, the operation | work which arrange | positions the ventilation fan V to the ceiling board 41 of the ceiling wall W using the said fixed base S is demonstrated. FIG. 6 is a perspective view of a state in which the flexible connecting pipe 42 is connected to the ventilation duct D connected to the duct connection cylinder 2 of the fixed base S via the elbow duct E. FIG. FIG. 6 is a diagram showing a state in which the fixed base S to which the flexible connecting tube 42 is connected is forcibly moved at a portion of the through hole 43 formed in the ceiling plate 41 to have a normal arrangement posture. 8 is a cross-sectional view of a state in which the string body 34 pulled out from the through hole 43 is pulled to bring the fixed base S into close contact with the ceiling plate 41, and FIG. 9 is a cross-sectional view taken along the line YY in FIG. FIGS. 10A to 10C are partial cross-sectional views showing temporal changes in a state in which the fixed base S is temporarily fixed to the ceiling plate 41 via the screw B ₁ . First, as shown in FIG. 6, the flexible connecting pipe 42 is connected to the ventilation duct D connected to the fixed base S via the elbow duct E. In this state, the string body 34 is unwound from the pedestal main body 10 and lies on the back surface of the ceiling board 41. Since the position where the fixed base S is fixed (the position where the ventilation fan V is installed) is known in advance, an operator who places the fixed base S in the vicinity of the position where the through hole 43 is to be formed in the back of the ceiling holds the string 34. Laying in the direction of the planned formation position of the through-hole 43 and inserting the hand from the through-hole 43 to search for the fixed base S, and forcing the fixed base S to the part of the through-hole 43 after the search It is desirable that the work to be moved to be easy. The fixed base S is connected to the flexible connecting pipe 42 as described above, and is disposed in the vicinity of the planned formation position of the through hole 43 formed in the ceiling plate 41.

  Next, through the ceiling wall W, the ventilation fan V can be inserted into the wall at the position where the ventilation fan V is disposed (the same position as the fixed position of the fixed base S) from the front side of the wall. A hole 43 is formed, and then the fixed base S connected to the flexible connecting pipe 42 disposed in the vicinity of the through hole 43 is forced to the through hole 43 by using the through hole 43. The front opening 3 of the fixed base S is arranged in a regular arrangement posture so as to face the wall surface side from the through hole 43. There are various methods for forcibly moving the fixed pedestal S arranged in the ceiling wall W to the portion of the through hole 43. As a typical method, the ceiling is manually inserted by the operator inserted into the wall from the through hole 43. By searching for the string body 34 lying on the plate 41 and pulling the string body 34, the fixed base S is forced to the through hole 43 as indicated by the arrow P (see FIGS. 6 and 7). The front opening 3 of the fixed base S is caused to face the wall surface from the through hole 43 (see FIG. 7). As another method, the fixed pedestal S is searched for by the operator's hand inserted into the wall from the through hole 43, and the fixed pedestal S is grasped by the hand and is forcibly moved to the through hole 43. Furthermore, the string body 34 may be hooked and pulled using a drawing tool having a hook-like tip.

Next, as shown in FIG. 1, FIG. 8, and FIG. 9, the fixed pedestal S arranged in the regular arrangement posture on the wall back of the ceiling board 41 is attached to the periphery of the through hole 43 of the ceiling board 41. temporary fixing through screws B ₁ two separate component. The temporarily fixed position of the fixed base S via the two screws B ₁ is the front plate body 51 of the ventilation fan V that is fixed to the fixed base S with the ceiling plate 41 sandwiched between the _two screws B _2. Naturally, this is different from the fixed position. That is, two screws B ₁ for temporary fixing, the vertical center line is located on C _1, two screws B ₂ for fixing the front plate body 51 of the exhaust fan V of the pedestal body 10, the base body 10 located on the horizontal center line C ₂ , a line segment connecting two screws B ₁ for temporary fixing and a line segment connecting _two screws B ₂ for fixing the front plate body 51 of the ventilation fan V Are orthogonal to each other.

Then, the string body 34 connected to the pedestal main body 10 of the fixed pedestal S arranged at a correct position with respect to the through hole 43 of the ceiling plate 41 is pulled out from the through hole 43 of the ceiling plate 41 to the wall surface side. from by pulling strongly downward by pulling unit 34c the operator's hand 61 of the cords 34 drawn on the wall surface side, in a state pressed against the base body 10 in top plate 41, via the screws B ₁ of the two The base body 10 is temporarily fixed to the ceiling board 41 from the wall front side. The size of the through hole 43 formed in the ceiling plate 41 is such that the tension portion 34c of the string body 34 connected to the pedestal main body 10 and pulled out from the through hole 43 to the wall surface side is formed on the inner peripheral surface of the through hole 43. It is necessary to prevent the base body 10 from moving relative to the through hole 43 due to an imbalance between the left and right pulling forces applied to the pulling portion 34c of the string 34 pulled out to the front side of the wall. is there.

That is, as shown in FIG. 10 (a), the pedestal body 10 is pressed against the ceiling plate 41 by the tensile force T applied to the string body 34, and the position of the fixed pedestal S with respect to the through hole 43 of the ceiling plate 41 is not displaced. Then, the screw B ₁ passes through the ceiling plate 41 from the front side of the wall and is screwed into the screw screwing lower hole H of the base body 10. In screwing Initially, as shown in FIG. 10 (b), although the base body 10 by threaded input of bis B ₁ is caused to slightly floating from the back surface of the top plate 41, the tip portion of the screw B _1, bis When even a small amount is screwed into the tapered first pilot hole H ₁ where B ₁ can be screwed in easily, the pedestal main body 10 that has been slightly lifted is then moved to the ceiling plate by screwing in the screw B _1. As shown in FIG. 10C, the screw B ₁ passes through the thick portion 1a of the front plate portion 1 of the pedestal main body 10, and the two screws B ₁ The pedestal main body 10 is temporarily fixed to the ceiling plate 41 in a state where the arrangement position with respect to the through hole 43 is maintained. In addition, after completion | finish of the said temporary fixing, it is preferable to cut off the endless (loop-shaped) string body 34. FIG. Since the string body 34 of the present embodiment is pulled out to the front side of the wall from the detection tool mounting groove 26 formed at the peripheral edge portion of the front opening 3 of the pedestal main body 10, the string body 34 is between the ceiling plate 41 of the pedestal main body 10. The string 34 is not sandwiched between the two.

As shown in FIG. 1, the ventilation fan V has a duct connection cylinder 52 integrally attached to the back side of a rectangular front plate body 51, and faces the circular opening 51 a of the front plate body 51. In this configuration, the rotating blades 53 disposed in the 52 are rotated by a motor 54. The ventilation fan V is fixed to a fixed base S disposed on the back side of the ceiling wall W via a pair of screws B ₂ inserted through a pair of upper and lower screw insertion holes 55 disposed on the longitudinal center line of the front plate body 51. Fixed to. In addition, the screw insertion hole formed in the front plate main body varies depending on the type of the ventilation fan, and a pair is arranged on the horizontal center line of the front plate main body, or one or two pairs along the diagonal direction are arranged. There are things. For this reason, when the base body 10 is temporarily fixed to the ceiling plate 41 via a plurality of screws, the screwing position of the temporary fixing screw in the base body 10 is the screw position of the front plate body of the ventilation fan in the base body 10. It is necessary to select while avoiding interference with the screwing position.

And on the wall surface side, in order to fix the ventilation fan V to the fixed base S installed in the wall back of the ceiling wall W, it carries out as follows. As shown in FIG. 1 and FIG. 11, the duct connecting tube 52 of the ventilation fan V is inserted into the ventilation duct D on the back side through the through hole 43 of the ceiling plate 41 on the wall surface side, and the front plate main body 51 is inserted. Close contact with the front surface of the ceiling plate 41. In this state, when the screw B ₂ inserted through the screw insertion hole 55 of the front plate body 51 of the ventilation fan V on the front side of the wall is rotated by a screwdriver, the screw B ₂ passes through the ceiling plate 41 and then the ceiling plate 41 is screwed into a screw threaded lower hole H formed in the front plate portion 1 of the fixed base S in contact with 41. That is, in this embodiment, the screws B ₂ are respectively screwed into the screw screw lower holes H of the screw screw lower hole groups H ₀ crossing the vertical center line C _1, and the front plate of the ventilation fan V In a state where the ceiling plate 41 is sandwiched between the main body 51 and the fixed base S, the front plate main body 51 of the ventilation fan V is fixed to the fixed base S on the back of the wall via _two screws B _2. Is firm. The screw screw-in hole group H ₀ is formed with a large number of screw screw-in holes H arranged vertically and horizontally, but the first screw B ₂ is not smoothly screwed into the screw screw-in hole H. In this case, when the front plate body 51 of the ventilation fan V is slightly moved in either direction, the tip of the screw B ₂ is surely screwed into the screw screw lower hole H in the vicinity and the second screw B _2. There if not screwed smoothly bis screwing down hole H is turning by a minimum angle front plate body 51 in either direction of the ventilation fan V around the screw B ₂ threaded Nyusumi closest bis What is necessary is just to screw in the screwing lower hole H.

  After the ventilation fan V is fixed, as shown in FIGS. 1 and 12, the louver 56 is covered on the front plate body 51 of the ventilation fan V on the wall surface side. As a result, the indoor fan is released into the atmosphere through the ventilation duct D and the flexible connecting pipe 42 by the operation of the ventilation fan V, and new air flows into the room from another part, thereby ventilating the room. Is done.

The first embodiment is an example in which the fixed base S is temporarily fixed to the ceiling plate 41 before the front plate body 51 of the ventilation fan V is fixed to the fixed base S. However, the second embodiment performs the temporary fixing. In this example, the front plate body 51 ′ of the ventilation fan V ′ is directly fixed to the fixed base S arranged in a regular arrangement posture on the back of the ceiling wall W. FIG. 13 is a perspective view of a fixed base S disposed on the back of the ceiling wall W and a ventilation fan V ′ fixed to the fixed base S. FIG. 14 is a perspective view of the tension member 34 c of the string body 34. the fixing base S which is pressed against the top plate 41 is a sectional view showing a state of fixing the 'front plate body 51' by a pair of screws B ₂ ventilators V. The ventilating fan V ′ is different from the ventilating fan V only in the shape of the front plate body 51 ′, and the other configurations are all the same. That is, the square-shaped front plate body 51 ′ is formed in the center portion and is formed with a pair of wide string body insertion groove portions 57 facing each other at a symmetrical position with respect to the center of the circular opening 51a. The screw pilot holes 58 are respectively formed. The string body insertion groove portion 57 of the front plate body 51 ′ is a portion through which the tension portion 34 c of the string body 34 drawn from the through hole 43 of the ceiling plate 41 is inserted. Further, since the screw lower holes 58 are formed in the respective corner portions of the front plate body 51 ′, the screws B ₂ inserted through the screw lower holes 58 are formed in the respective corner portions of the fixed base S. It is threaded to either the bis threaded into the prepared hole H of the bis threaded into the lower hole group H _0.

Then, as shown in FIG. 14, the string body 34 is pulled out to the front side of the wall through the through hole 43 of the ceiling plate 41 from the fixed base S arranged in a normal posture on the back of the ceiling wall W and pulled out. When the tension part 34c of the string body 34 is strongly pulled downward in a state where the tension part 34c of the string body 34 is inserted into the string body insertion groove 57 of the front plate body 51 'of the ventilation fan V', the wall of the ceiling wall W is drawn. On the back, the fixed base S is pressed against the ceiling board 41. In this state, the screws B ₂ inserted through the screw lower holes 58 at the corners of the front plate body 51 ′ of the ventilation fan V ′ are passed through the ceiling plate 41 and pressed against the ceiling plate 41 on the back side. The screw B ₂ is screwed into any one of the screw screw lower holes H in the screw screw lower hole group H ₀ at the corner portion of the pedestal main body 10 that is in close contact. Since the front plate main body 51 ′ of the ventilation fan V ′ is pressed against the ceiling plate 41 by the tensile force T applied by the tension portion 34c of the string body 34, each corner portion of the front plate main body 51 ′ has a ceiling plate. 41, the front plate body 51 ′ of the ventilation fan V ′ is attached to the ceiling wall through a plurality of screws (4 in the second embodiment) B ₂ in the same manner as in the first embodiment. It can be fixed directly to the fixed base S on the wall behind W. Note that the size of the through hole 43 formed in the ceiling plate 41 and the depth of the string body insertion groove portion 57 formed in the front plate main body 51 ′ are set so that the tension portion 34c of the string body 34 is as shown in FIG. When pulled out perpendicularly to the front plate portion 1 of the fixed base S as it is, it is necessary not to contact the peripheral edge portion of the through hole 43 and the formation end of the string body insertion groove portion 57.

In the third embodiment, the fixed base S is fixed to the side surface of the crosspiece 44 disposed in the wall of the ceiling wall W, and then the fixed base S, one side of which is fixed to the crosspiece 44, is a string. This is a case where the front plate body 51 of the ventilation fan V is fixed to the fixed base S while being pulled downward by 34. FIG. 15 is a partial cross-sectional view showing a state in which the fixed base S is fixed to the side surface of the crosspiece 44 disposed in the wall of the ceiling wall W. The third embodiment is a case where the ventilation fan V is disposed in the vicinity of the crosspiece 44 on the back wall, and one vertical side plate portion 4 of the fixed base S is brought into contact with the side surface of the crosspiece 44 so as to be in the vicinity of the crosspiece 44. The screw B ₃ inserted through the screw insertion hole 17 of the pedestal body is rotated by the driver 20 inserted through the through hole 43 formed in advance in the wall and the driver insertion hole 21 of the pedestal body 10 in the wall. Screw in. Incidentally, the ceiling plate 41 is fixed to the rail 44 via the screws B _4.

Thereby, since the fixed base S is temporarily fixed to the crosspiece 44 in the wall, the front plate body 51 of the ventilation fan V is brought into contact with the wall surface of the ceiling plate 41, and the fixed base S is moved downward by the string body 34. When the front plate body 51 is fixed to the fixed pedestal S in the wall via the screw B ₃ while pulling, the fixed pedestal S does not move with respect to the through hole 43 of the ceiling plate 41, and the crosspiece 44 Therefore, the screw B ₂ is screwed into the fixed pedestal S by pulling the fixed pedestal S downward by the string body 34 to prevent the lifting. Easy to do.

Example 1 is an example in which the movement suppression unit provided on the fixed base is configured with a flexible string body, but Example 4 is an example in which the movement suppression unit is configured with a rigid member, This will be described in detail with reference to FIGS. FIG. 16 is a perspective view of the fixed base S ′ in which the movement suppressing portion 71 is integrally provided in the front opening 3 as viewed from below, and FIG. 17 is a front view of a portion of the movement suppressing portion 71 of the fixed base S ′. 18 is a cross-sectional view showing a state in which the movement restraining portion 71 provided integrally with the front opening 3 is pulled and brought into close contact with the fixed base S ′ ceiling plate 41. FIG. It is a ZZ line sectional view. A stepped portion 2a is formed in a portion of the fixed base S 'close to the front opening 3 of the duct connection cylinder 2, and the inner diameter on the front opening 3 side is larger than the inner diameter on the non-opening side. On the inner peripheral surface of the tube 2 on the front opening 3 side, a movement restraining portion 71 is disposed along a longitudinal center line C ₁ parallel to the longitudinal side plate portion 4. It is erected in a form that is integrally connected to. For this reason, the movement suppression part 71 is constructed along the diametrical direction of the front opening 3 in the part which entered inward slightly rather than the front opening 3 of fixed base S '. The movement restraining portion 71 has the same configuration as that of the to-be-detected tool 31, and the magnet M is placed on the opposite side of the front opening 3 in the circular magnet holding portion 73 in the center portion in the longitudinal direction of the plate rod-like attachment rod 72. A pair of screw holders that are embedded in an exposed state and that are fitted and held on both sides of the magnet holding portion 73 of the mounting rod 72 by screws B ₁ for fixing the fixing base S ′ to the ceiling plate 41 or the like. The piece 74 is formed so as to face the front opening 3 and to face the mounting rod 72 along the width direction. Since the magnet M embedded in the movement restraining portion 71 is disposed at the center of the front opening 3 of the fixed base S ′, as described later, the front opening 3 of the fixed base S ′ is covered with a wall plate. In this case, by detecting the magnet M embedded in the movement suppressing unit 71 from the wall surface, the detection position becomes the center position of the front opening 3 and the opening of the fixed base S ′ is made to face the wall surface. It becomes a reference position when the perforation hole is circularly drilled. In addition, two screws B ₁ can be held along the longitudinal direction of the attachment rod 72 with _one tip being opposed to one movement suppressing portion 71. The width K of Tochakubo 72, they become much smaller than the outline J of the head 75 of the screw B _1, bis B ₁ in which a pair of screw retaining piece 74 is fitted, the head 75 The main body 77 of the screw B ₁ can be easily removed from the pair of screw holding pieces 74 by pinching and separating from the mounting rod 72. Further, since the movement restraining portion 71 becomes an obstacle to the passage of airflow after use, the movement restraining portion 71 is often broken off, and the folding can be easily performed on both side surfaces of both ends of the attachment rod 72 in the longitudinal direction. A break-off groove 76 is formed along the thickness direction.

Then, in order to draw the fixed base S ′ connected to the flexible connecting pipe 42 on the back side of the ceiling plate 41 to the portion of the through hole 43 formed in the ceiling plate 41, the fixed base S ′ is slightly laid down. Then, the movement restraining portion 71 facing the front opening 3 is directly grasped by the operator's hand inserted through the through hole 43 into the back of the ceiling, and the fixed pedestal S ′ connected to the flexible connecting tube 42 is attached. Pull up to the portion of the through hole 43 of the ceiling plate 41. Next, as shown in FIGS. 18 and 19, the two screws B ₁ are removed by gripping the head 75 from the screw holding piece 74 of the movement suppressing unit 71, and the movement suppressing unit 71 is operated. The fixed base S ′ is strongly pressed against the ceiling plate 41 and temporarily fixed by holding it with a person's hand and pulling it downward with a large pulling force T. Thus, when the screw B ₁ is screwed into the screw screw hole H of the fixed base S ′ arranged on the back side of the ceiling board 41 from the front side of the ceiling board 41, the fixed base S is fixed to the ceiling board 41. Since 'is prevented from floating, the screwing operation can be easily performed. Moreover, the movement suppression part 71 of Example 4 is also provided with the function as the said control piece 25 which abuts and regulates the end surface of the ventilation duct D inserted in the duct connection cylinder 2. FIG.

  In addition, unlike the above construction method, the fixed base S ′ is fixed to a structure such as a pillar of a building in advance, and then fixed on the front surface of the fixed base S ′. In the construction method in which the wall plate is erected, the front opening 3 of the fixed pedestal S ′ is closed by the wall plate, so that the front opening 3 of the fixed pedestal S ′ faces the wall surface after the wall plate is erected. Therefore, it is necessary to perforate the wall plate. In this case, the center of the front opening 3 of the fixed base S ′ can be detected by magnetically detecting the magnet M of the movement suppressing portion 71 provided integrally with the fixed base S ′ from the front side of the wall plate. Is displayed on the wall plate, and the wall plate is circularly drilled around the display point to form a through hole, so that the front opening 3 of the fixed base S ′ faces the wall surface. In addition, when the magnet M is provided like the movement suppression part 71 of Example 4, there exists an advantage which show | plays the above-mentioned to-be-detected function, but it does not have the magnet M but only an original movement suppression function. It is also possible to consider a form having

  Of the plurality of cable insertion holes 27 formed facing the front opening 3 of the pedestal main body 10, the unused cable insertion holes 27 are fixed by inserting a fingertip when the fixed base S is temporarily fixed. It can also be used to press the pedestal S against the ceiling plate 41. In this sense, the cable insertion hole 27 functions as the “movement restraining portion” in the present invention.

  In addition, the “movement restraining portion” that prevents the fixed base S from moving with respect to the through hole 43 of the wall plate (ceiling board 41) so that the fixed base S maintains a regular arrangement posture is the base body. It is also possible to form the inside of 10 duct connecting cylinders (openings) 2 so that they can be broken or to project from the front opening 3 to the wall front side. In this case, the “movement restraining part” may be made foldable like the insertion restricting piece 25 or may be made removable. In addition, when it does not become an obstacle to the mounting of ventilation fans, it is not necessary to remove it.

  Further, the “movement restraining portion” can be formed outside the front opening (opening) 3 of the pedestal body. In this case, the through hole 43 formed in the wall plate (ceiling plate 41) is formed. The size is larger than when the “movement restraining portion” is present in the opening of the base body.

It is a perspective view of fixed pedestal S concerning the present invention arranged on the back of the wall, and ventilation fan V arranged in the part from the wall surface to the back of the wall and fixed to the fixed pedestal S. 3 is a front view of a fixed base S. FIG. FIG. 3 is a sectional view taken along line XX of FIG. 2 in an installation posture of a fixed base S. It is a perspective view in the installation posture of the fixed base S. FIG. FIG. 4 is a perspective view of the fixed base S in a state where a string body 34 for suppressing movement of the fixed base S is hung down. FIG. 5 is a perspective view of a state in which a flexible connecting pipe 42 is connected to a ventilation duct D connected to a duct connection cylinder 2 of a fixed base S via an elbow duct E. A state in which the fixed base S to which the flexible connecting pipe 42 is connected in the wall of the ceiling wall W is forcibly moved in the portion of the through hole 43 formed in the ceiling plate 41 to have a normal arrangement posture. FIG. FIG. 6 is a cross-sectional view of a state in which the fixed base S is brought into close contact with the ceiling plate 41 by pulling the string body 34 pulled out from the through hole 43. It is the YY sectional view taken on the line of FIG. To (b) to (c) is a partial sectional view showing a temporal change of the state of the fixing base S is temporarily fixed to the ceiling plate 41 via screws B _1. By screwing the screw B ₂ from the wall surface side, a cross-sectional view of a state where the front plate body 51 of the ventilation fan V is fixed to the fixing base S of Kabeura. It is sectional drawing of the state which covered the louver 56 on the front-plate main body 51 of the ventilation fan V fixed to the fixed base S of the back wall. FIG. 4 is a perspective view of a fixed base S disposed on the back of the ceiling wall W and a ventilation fan V ′ fixed to the fixed base S. By pulling the pulling part 34c of the cords 34 in the fixed base S which is pressed against the top plate 41, is a cross-sectional view showing a state of fixed by screws B ₂ a pair of the 'front plate body 51' ventilators V . The crosspiece 44 in the top wall W is a partial cross-sectional view of a state that secure the fixing base S through screws B _3. It is the perspective view which looked at fixed base S 'with which the movement suppression part 71 was integrally provided in the front opening 3 from the downward direction. It is a front view of the part of the movement suppression part 71 of fixed base S '. FIG. 6 is a cross-sectional view of a state in which the movement restraining portion 31 provided integrally with the front opening 3 is pulled to bring the fixed base S ′ into close contact with the ceiling plate 41. It is the ZZ sectional view taken on the line of FIG.

Explanation of symbols

B ₁ : Screw (for temporary fixing)
B ₂ : Screw (for fixing the ventilation fan)
B ₃ : Screw (for fixing the base body)
H: Screw threaded pilot hole (fixed part)
S, S ': Fixed base
T: Tensile force of string
V, V ': Ventilation fan
W: Ceiling wall (wall)
1: Front plate (wall contact part)
2: Duct connection cylinder (cylinder wall)
3: Front opening (opening)
10: Base body
34: String body (movement restraining part, attracting tool)
34c: String body tension part
41: Ceiling board (wall board)
43: Through hole
44: pier (structure in the wall)
61: Hand of the worker
71: Movement suppression unit

Claims (13)

It is a method of fixing a fixed base of ventilation fans disposed on the back of a wall to a wall plate constituting the wall or a structure in the wall, and disposing the fixed base on the back of the wall,
A fixed pedestal having an opening that can face the wall front side from the through hole is disposed in advance in the wall in the vicinity of the formation planned position of the through hole formed in the wall plate constituting the wall,
A through hole is formed at the position where the fixed base is arranged from the wall front side,
The fixed pedestal is forcibly moved in the wall from the wall surface side by fingers or an attracting tool inserted into the wall from the through hole, so that the opening of the fixed pedestal faces the wall surface side from the through hole. In the posture,
While restraining the movement of the fixed base relative to the through-hole with the movement suppressing portion provided on the fixed base so as to maintain the regular arrangement posture, the fixed base from the wall surface side to the wall plate or the structure in the wall An arrangement method of a fixed base of a ventilation fan arranged on the back of a wall, characterized by fixing. A method of fixing a fixed base of a ventilation fan disposed on the back of a wall to a wall plate constituting the wall, and disposing the fixed base on the back of the wall,
A fixed pedestal having an opening that can face the wall front side from the through hole is disposed in advance in the wall in the vicinity of the formation planned position of the through hole formed in the wall plate constituting the wall,
A through hole is formed at the position where the fixed base is arranged from the wall front side,
The fixed pedestal is forcibly moved in the wall from the wall surface side by fingers or an attracting tool inserted into the wall from the through hole, so that the opening of the fixed pedestal faces the wall surface side from the through hole. In the posture,
Ventilation fans installed from the wall surface side to the wall surface side are attached to the fixed pedestal while the movement suppressing portion provided on the fixed pedestal so as to maintain the regular arrangement posture and suppress the movement of the fixed pedestal relative to the through hole. A method for disposing a fixed base for a ventilation fan disposed on the back of a wall, wherein the fixed base is fixed to a wall plate in the regular disposition posture by wearing. The wall portion according to claim 1 or 2, wherein a pipe material piped in the wall is previously connected to the connection portion provided in the fixed base in the wall. To arrange a fixed pedestal for ventilation fans. The said movement suppression part is pulled out to a wall surface from a through-hole, and the movement of a fixed base is suppressed, The fixed base of the ventilation fan arrange | positioned in the wall back in any one of Claim 1 thru | or 3 characterized by the above-mentioned. Arrangement method. A fixed pedestal for ventilating fans that is arranged in advance on the back of the wall and is fixed to the wall plate in a state where the opening faces the wall surface side from a through hole formed in the wall plate constituting the wall,
The fixed base is
An opening formed in the pedestal body,
A wall back abutting portion which is provided at a peripheral edge of the opening of the pedestal main body and prevents the fixed pedestal from coming out from the through hole to the wall front side;
In the state where the opening in the back of the wall is arranged at a position facing the wall surface from the through hole, ventilation fans and wall plates installed on the wall surface from the wall surface side in order to fix the position of the base body with respect to the through hole A fixing portion that enables the wall plate to be clamped and fixed between the ventilation fan and the pedestal main body by screwing screws that respectively penetrate the peripheries of the through holes;
When the fixed pedestal is fixed to the wall plate, it is possible to perform a restraining operation from the front side of the wall so as to suppress the positional deviation of the opening with respect to the through hole, and the movement is formed on the pedestal main body so as not to prevent the clamping and fixing to the wall plate. A suppression unit;
A fixed pedestal for ventilation fans disposed on the back of the wall. It is a fixed pedestal for a ventilation fan that is pre-arranged on the back of the wall and fixed to the structure in the wall with the opening facing the front side of the wall from the through hole formed in the wall plate constituting the wall,
The fixed base is
An opening formed in the pedestal body,
A wall back abutting portion which is provided at a peripheral edge of the opening of the pedestal main body and prevents the fixed pedestal from coming out from the through hole to the wall front side;
In a state where the opening in the back of the wall is arranged at a position facing the wall surface from the through hole, to fix the position of the base body with respect to the through hole, to the structure in the wall or directly to the wall plate, from the wall surface A fixing part that can be fixed;
When the fixed pedestal is fixed to the wall plate, it is possible to perform a restraining operation from the front side of the wall so as to suppress the positional deviation of the opening with respect to the through hole, and the movement is formed on the pedestal main body so as not to prevent the clamping and fixing to the wall plate. A suppression unit;
A fixed pedestal for ventilation fans disposed on the back of the wall. The fixed pedestal for a ventilation fan disposed on the back of the wall according to claim 5 or 6, wherein the movement suppressing portion is formed to project into an opening of the pedestal body. The fixing of the ventilation fan arranged on the back of the wall according to claim 5 or 6, wherein the movement restraining part is a hook part protruding from the opening end of the pedestal body toward the front side of the wall. pedestal. The fixed base for a ventilation fan disposed on the back of the wall according to claim 5 or 6, wherein the movement suppressing portion is a string body having a length extending to the front side of the wall through the through hole. The fixed pedestal for a ventilation fan disposed on the back of a wall according to claim 5 or 6, wherein the movement restraining portion is a rigid rod-like member installed in the opening of the pedestal body. The said fixed base has a cylindrical wall part which one end becomes said opening, and the said movement suppression part is comprised by the recessed part formed in the vicinity of the opening side of the said cylindrical wall part, It is characterized by the above-mentioned. A fixed pedestal for a ventilation fan disposed on the back of the wall according to any one of 5 to 10. The ventilation fan as set forth in any one of claims 5 to 10, wherein the through hole has a size that allows a human hand to enter, and the movement suppressing portion can be gripped. Fixed pedestal. The wall back according to any one of claims 5 to 11, wherein the movement restraining portion also serves as a pulling portion when pulling the fixed base so that the opening of the base body faces the through hole. A fixed base for ventilation fans.

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